clang 10.0.0git

Clang.cpp
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1 //===-- Clang.cpp - Clang+LLVM ToolChain Implementations --------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include "Clang.h"
10 #include "Arch/AArch64.h"
11 #include "Arch/ARM.h"
12 #include "Arch/Mips.h"
13 #include "Arch/PPC.h"
14 #include "Arch/RISCV.h"
15 #include "Arch/Sparc.h"
16 #include "Arch/SystemZ.h"
17 #include "Arch/X86.h"
18 #include "AMDGPU.h"
19 #include "CommonArgs.h"
20 #include "Hexagon.h"
21 #include "MSP430.h"
22 #include "InputInfo.h"
23 #include "PS4CPU.h"
24 #include "clang/Basic/CharInfo.h"
25 #include "clang/Basic/CodeGenOptions.h"
26 #include "clang/Basic/LangOptions.h"
27 #include "clang/Basic/ObjCRuntime.h"
28 #include "clang/Basic/Version.h"
29 #include "clang/Driver/Distro.h"
30 #include "clang/Driver/DriverDiagnostic.h"
31 #include "clang/Driver/Options.h"
32 #include "clang/Driver/SanitizerArgs.h"
33 #include "clang/Driver/XRayArgs.h"
34 #include "llvm/ADT/StringExtras.h"
35 #include "llvm/Config/llvm-config.h"
36 #include "llvm/Option/ArgList.h"
37 #include "llvm/Support/CodeGen.h"
38 #include "llvm/Support/Compression.h"
39 #include "llvm/Support/FileSystem.h"
40 #include "llvm/Support/Path.h"
41 #include "llvm/Support/Process.h"
42 #include "llvm/Support/TargetParser.h"
43 #include "llvm/Support/YAMLParser.h"
44
45 #ifdef LLVM_ON_UNIX
46 #include <unistd.h> // For getuid().
47 #endif
48
49 using namespace clang::driver;
50 using namespace clang::driver::tools;
51 using namespace clang;
52 using namespace llvm::opt;
53
54 static void CheckPreprocessingOptions(const Driver &D, const ArgList &Args) {
55 if (Arg *A =
56 Args.getLastArg(clang::driver::options::OPT_C, options::OPT_CC)) {
57 if (!Args.hasArg(options::OPT_E) && !Args.hasArg(options::OPT__SLASH_P) &&
58 !Args.hasArg(options::OPT__SLASH_EP) && !D.CCCIsCPP()) {
59 D.Diag(clang::diag::err_drv_argument_only_allowed_with)
60 << A->getBaseArg().getAsString(Args)
61 << (D.IsCLMode() ? "/E, /P or /EP" : "-E");
62 }
63 }
64 }
65
66 static void CheckCodeGenerationOptions(const Driver &D, const ArgList &Args) {
67 // In gcc, only ARM checks this, but it seems reasonable to check universally.
68 if (Args.hasArg(options::OPT_static))
69 if (const Arg *A =
70 Args.getLastArg(options::OPT_dynamic, options::OPT_mdynamic_no_pic))
71 D.Diag(diag::err_drv_argument_not_allowed_with) << A->getAsString(Args)
72 << "-static";
73 }
74
75 // Add backslashes to escape spaces and other backslashes.
76 // This is used for the space-separated argument list specified with
77 // the -dwarf-debug-flags option.
78 static void EscapeSpacesAndBackslashes(const char *Arg,
79 SmallVectorImpl<char> &Res) {
80 for (; *Arg; ++Arg) {
81 switch (*Arg) {
82 default:
83 break;
84 case ' ':
85 case '\\':
86 Res.push_back('\\');
87 break;
88 }
89 Res.push_back(*Arg);
90 }
91 }
92
93 // Quote target names for inclusion in GNU Make dependency files.
94 // Only the characters '$', '#', ' ', '\t' are quoted.
95 static void QuoteTarget(StringRef Target, SmallVectorImpl<char> &Res) {
96 for (unsigned i = 0, e = Target.size(); i != e; ++i) {
97 switch (Target[i]) {
98 case ' ':
99 case '\t':
100 // Escape the preceding backslashes
101 for (int j = i - 1; j >= 0 && Target[j] == '\\'; --j)
102 Res.push_back('\\');
103
104 // Escape the space/tab
105 Res.push_back('\\');
106 break;
107 case '$':
108 Res.push_back('$');
109 break;
110 case '#':
111 Res.push_back('\\');
112 break;
113 default:
114 break;
115 }
116
117 Res.push_back(Target[i]);
118 }
119 }
120
121 /// Apply \a Work on the current tool chain \a RegularToolChain and any other
122 /// offloading tool chain that is associated with the current action \a JA.
123 static void
124 forAllAssociatedToolChains(Compilation &C, const JobAction &JA,
125 const ToolChain &RegularToolChain,
126 llvm::function_ref<void(const ToolChain &)> Work) {
127 // Apply Work on the current/regular tool chain.
128 Work(RegularToolChain);
129
130 // Apply Work on all the offloading tool chains associated with the current
131 // action.
132 if (JA.isHostOffloading(Action::OFK_Cuda))
133 Work(*C.getSingleOffloadToolChain<Action::OFK_Cuda>());
134 else if (JA.isDeviceOffloading(Action::OFK_Cuda))
135 Work(*C.getSingleOffloadToolChain<Action::OFK_Host>());
136 else if (JA.isHostOffloading(Action::OFK_HIP))
137 Work(*C.getSingleOffloadToolChain<Action::OFK_HIP>());
138 else if (JA.isDeviceOffloading(Action::OFK_HIP))
139 Work(*C.getSingleOffloadToolChain<Action::OFK_Host>());
140
141 if (JA.isHostOffloading(Action::OFK_OpenMP)) {
142 auto TCs = C.getOffloadToolChains<Action::OFK_OpenMP>();
143 for (auto II = TCs.first, IE = TCs.second; II != IE; ++II)
144 Work(*II->second);
145 } else if (JA.isDeviceOffloading(Action::OFK_OpenMP))
146 Work(*C.getSingleOffloadToolChain<Action::OFK_Host>());
147
148 //
149 // TODO: Add support for other offloading programming models here.
150 //
151 }
152
153 /// This is a helper function for validating the optional refinement step
154 /// parameter in reciprocal argument strings. Return false if there is an error
155 /// parsing the refinement step. Otherwise, return true and set the Position
156 /// of the refinement step in the input string.
157 static bool getRefinementStep(StringRef In, const Driver &D,
158 const Arg &A, size_t &Position) {
159 const char RefinementStepToken = ':';
160 Position = In.find(RefinementStepToken);
161 if (Position != StringRef::npos) {
162 StringRef Option = A.getOption().getName();
163 StringRef RefStep = In.substr(Position + 1);
164 // Allow exactly one numeric character for the additional refinement
165 // step parameter. This is reasonable for all currently-supported
166 // operations and architectures because we would expect that a larger value
167 // of refinement steps would cause the estimate "optimization" to
168 // under-perform the native operation. Also, if the estimate does not
169 // converge quickly, it probably will not ever converge, so further
170 // refinement steps will not produce a better answer.
171 if (RefStep.size() != 1) {
172 D.Diag(diag::err_drv_invalid_value) << Option << RefStep;
173 return false;
174 }
175 char RefStepChar = RefStep[0];
176 if (RefStepChar < '0' || RefStepChar > '9') {
177 D.Diag(diag::err_drv_invalid_value) << Option << RefStep;
178 return false;
179 }
180 }
181 return true;
182 }
183
184 /// The -mrecip flag requires processing of many optional parameters.
185 static void ParseMRecip(const Driver &D, const ArgList &Args,
186 ArgStringList &OutStrings) {
187 StringRef DisabledPrefixIn = "!";
188 StringRef DisabledPrefixOut = "!";
189 StringRef EnabledPrefixOut = "";
190 StringRef Out = "-mrecip=";
191
192 Arg *A = Args.getLastArg(options::OPT_mrecip, options::OPT_mrecip_EQ);
193 if (!A)
194 return;
195
196 unsigned NumOptions = A->getNumValues();
197 if (NumOptions == 0) {
198 // No option is the same as "all".
199 OutStrings.push_back(Args.MakeArgString(Out + "all"));
200 return;
201 }
202
203 // Pass through "all", "none", or "default" with an optional refinement step.
204 if (NumOptions == 1) {
205 StringRef Val = A->getValue(0);
206 size_t RefStepLoc;
207 if (!getRefinementStep(Val, D, *A, RefStepLoc))
208 return;
209 StringRef ValBase = Val.slice(0, RefStepLoc);
210 if (ValBase == "all" || ValBase == "none" || ValBase == "default") {
211 OutStrings.push_back(Args.MakeArgString(Out + Val));
212 return;
213 }
214 }
215
216 // Each reciprocal type may be enabled or disabled individually.
217 // Check each input value for validity, concatenate them all back together,
218 // and pass through.
219
220 llvm::StringMap<bool> OptionStrings;
221 OptionStrings.insert(std::make_pair("divd", false));
222 OptionStrings.insert(std::make_pair("divf", false));
223 OptionStrings.insert(std::make_pair("vec-divd", false));
224 OptionStrings.insert(std::make_pair("vec-divf", false));
225 OptionStrings.insert(std::make_pair("sqrtd", false));
226 OptionStrings.insert(std::make_pair("sqrtf", false));
227 OptionStrings.insert(std::make_pair("vec-sqrtd", false));
228 OptionStrings.insert(std::make_pair("vec-sqrtf", false));
229
230 for (unsigned i = 0; i != NumOptions; ++i) {
231 StringRef Val = A->getValue(i);
232
233 bool IsDisabled = Val.startswith(DisabledPrefixIn);
234 // Ignore the disablement token for string matching.
235 if (IsDisabled)
236 Val = Val.substr(1);
237
238 size_t RefStep;
239 if (!getRefinementStep(Val, D, *A, RefStep))
240 return;
241
242 StringRef ValBase = Val.slice(0, RefStep);
243 llvm::StringMap<bool>::iterator OptionIter = OptionStrings.find(ValBase);
244 if (OptionIter == OptionStrings.end()) {
245 // Try again specifying float suffix.
246 OptionIter = OptionStrings.find(ValBase.str() + 'f');
247 if (OptionIter == OptionStrings.end()) {
248 // The input name did not match any known option string.
249 D.Diag(diag::err_drv_unknown_argument) << Val;
250 return;
251 }
252 // The option was specified without a float or double suffix.
253 // Make sure that the double entry was not already specified.
254 // The float entry will be checked below.
255 if (OptionStrings[ValBase.str() + 'd']) {
256 D.Diag(diag::err_drv_invalid_value) << A->getOption().getName() << Val;
257 return;
258 }
259 }
260
261 if (OptionIter->second == true) {
262 // Duplicate option specified.
263 D.Diag(diag::err_drv_invalid_value) << A->getOption().getName() << Val;
264 return;
265 }
266
267 // Mark the matched option as found. Do not allow duplicate specifiers.
268 OptionIter->second = true;
269
270 // If the precision was not specified, also mark the double entry as found.
271 if (ValBase.back() != 'f' && ValBase.back() != 'd')
272 OptionStrings[ValBase.str() + 'd'] = true;
273
274 // Build the output string.
275 StringRef Prefix = IsDisabled ? DisabledPrefixOut : EnabledPrefixOut;
276 Out = Args.MakeArgString(Out + Prefix + Val);
277 if (i != NumOptions - 1)
278 Out = Args.MakeArgString(Out + ",");
279 }
280
281 OutStrings.push_back(Args.MakeArgString(Out));
282 }
283
284 /// The -mprefer-vector-width option accepts either a positive integer
285 /// or the string "none".
286 static void ParseMPreferVectorWidth(const Driver &D, const ArgList &Args,
287 ArgStringList &CmdArgs) {
288 Arg *A = Args.getLastArg(options::OPT_mprefer_vector_width_EQ);
289 if (!A)
290 return;
291
292 StringRef Value = A->getValue();
293 if (Value == "none") {
294 CmdArgs.push_back("-mprefer-vector-width=none");
295 } else {
296 unsigned Width;
297 if (Value.getAsInteger(10, Width)) {
298 D.Diag(diag::err_drv_invalid_value) << A->getOption().getName() << Value;
299 return;
300 }
301 CmdArgs.push_back(Args.MakeArgString("-mprefer-vector-width=" + Value));
302 }
303 }
304
305 static void getWebAssemblyTargetFeatures(const ArgList &Args,
306 std::vector<StringRef> &Features) {
307 handleTargetFeaturesGroup(Args, Features, options::OPT_m_wasm_Features_Group);
308 }
309
310 static void getTargetFeatures(const ToolChain &TC, const llvm::Triple &Triple,
311 const ArgList &Args, ArgStringList &CmdArgs,
312 bool ForAS) {
313 const Driver &D = TC.getDriver();
314 std::vector<StringRef> Features;
315 switch (Triple.getArch()) {
316 default:
317 break;
318 case llvm::Triple::mips:
319 case llvm::Triple::mipsel:
320 case llvm::Triple::mips64:
321 case llvm::Triple::mips64el:
322 mips::getMIPSTargetFeatures(D, Triple, Args, Features);
323 break;
324
325 case llvm::Triple::arm:
326 case llvm::Triple::armeb:
327 case llvm::Triple::thumb:
328 case llvm::Triple::thumbeb:
329 arm::getARMTargetFeatures(TC, Triple, Args, CmdArgs, Features, ForAS);
330 break;
331
332 case llvm::Triple::ppc:
333 case llvm::Triple::ppc64:
334 case llvm::Triple::ppc64le:
335 ppc::getPPCTargetFeatures(D, Triple, Args, Features);
336 break;
337 case llvm::Triple::riscv32:
338 case llvm::Triple::riscv64:
339 riscv::getRISCVTargetFeatures(D, Triple, Args, Features);
340 break;
341 case llvm::Triple::systemz:
342 systemz::getSystemZTargetFeatures(Args, Features);
343 break;
344 case llvm::Triple::aarch64:
345 case llvm::Triple::aarch64_32:
346 case llvm::Triple::aarch64_be:
347 aarch64::getAArch64TargetFeatures(D, Triple, Args, Features);
348 break;
349 case llvm::Triple::x86:
350 case llvm::Triple::x86_64:
351 x86::getX86TargetFeatures(D, Triple, Args, Features);
352 break;
353 case llvm::Triple::hexagon:
354 hexagon::getHexagonTargetFeatures(D, Args, Features);
355 break;
356 case llvm::Triple::wasm32:
357 case llvm::Triple::wasm64:
358 getWebAssemblyTargetFeatures(Args, Features);
359 break;
360 case llvm::Triple::sparc:
361 case llvm::Triple::sparcel:
362 case llvm::Triple::sparcv9:
363 sparc::getSparcTargetFeatures(D, Args, Features);
364 break;
365 case llvm::Triple::r600:
366 case llvm::Triple::amdgcn:
367 amdgpu::getAMDGPUTargetFeatures(D, Args, Features);
368 break;
369 case llvm::Triple::msp430:
370 msp430::getMSP430TargetFeatures(D, Args, Features);
371 }
372
373 // Find the last of each feature.
374 llvm::StringMap<unsigned> LastOpt;
375 for (unsigned I = 0, N = Features.size(); I < N; ++I) {
376 StringRef Name = Features[I];
377 assert(Name[0] == '-' || Name[0] == '+');
378 LastOpt[Name.drop_front(1)] = I;
379 }
380
381 for (unsigned I = 0, N = Features.size(); I < N; ++I) {
382 // If this feature was overridden, ignore it.
383 StringRef Name = Features[I];
384 llvm::StringMap<unsigned>::iterator LastI = LastOpt.find(Name.drop_front(1));
385 assert(LastI != LastOpt.end());
386 unsigned Last = LastI->second;
387 if (Last != I)
388 continue;
389
390 CmdArgs.push_back("-target-feature");
391 CmdArgs.push_back(Name.data());
392 }
393 }
394
395 static bool
396 shouldUseExceptionTablesForObjCExceptions(const ObjCRuntime &runtime,
397 const llvm::Triple &Triple) {
398 // We use the zero-cost exception tables for Objective-C if the non-fragile
399 // ABI is enabled or when compiling for x86_64 and ARM on Snow Leopard and
400 // later.
401 if (runtime.isNonFragile())
402 return true;
403
404 if (!Triple.isMacOSX())
405 return false;
406
407 return (!Triple.isMacOSXVersionLT(10, 5) &&
408 (Triple.getArch() == llvm::Triple::x86_64 ||
409 Triple.getArch() == llvm::Triple::arm));
410 }
411
412 /// Adds exception related arguments to the driver command arguments. There's a
413 /// master flag, -fexceptions and also language specific flags to enable/disable
414 /// C++ and Objective-C exceptions. This makes it possible to for example
415 /// disable C++ exceptions but enable Objective-C exceptions.
416 static void addExceptionArgs(const ArgList &Args, types::ID InputType,
417 const ToolChain &TC, bool KernelOrKext,
418 const ObjCRuntime &objcRuntime,
419 ArgStringList &CmdArgs) {
420 const llvm::Triple &Triple = TC.getTriple();
421
422 if (KernelOrKext) {
423 // -mkernel and -fapple-kext imply no exceptions, so claim exception related
424 // arguments now to avoid warnings about unused arguments.
425 Args.ClaimAllArgs(options::OPT_fexceptions);
426 Args.ClaimAllArgs(options::OPT_fno_exceptions);
427 Args.ClaimAllArgs(options::OPT_fobjc_exceptions);
428 Args.ClaimAllArgs(options::OPT_fno_objc_exceptions);
429 Args.ClaimAllArgs(options::OPT_fcxx_exceptions);
430 Args.ClaimAllArgs(options::OPT_fno_cxx_exceptions);
431 return;
432 }
433
434 // See if the user explicitly enabled exceptions.
435 bool EH = Args.hasFlag(options::OPT_fexceptions, options::OPT_fno_exceptions,
436 false);
437
438 // Obj-C exceptions are enabled by default, regardless of -fexceptions. This
439 // is not necessarily sensible, but follows GCC.
440 if (types::isObjC(InputType) &&
441 Args.hasFlag(options::OPT_fobjc_exceptions,
442 options::OPT_fno_objc_exceptions, true)) {
443 CmdArgs.push_back("-fobjc-exceptions");
444
445 EH |= shouldUseExceptionTablesForObjCExceptions(objcRuntime, Triple);
446 }
447
448 if (types::isCXX(InputType)) {
449 // Disable C++ EH by default on XCore and PS4.
450 bool CXXExceptionsEnabled =
451 Triple.getArch() != llvm::Triple::xcore && !Triple.isPS4CPU();
452 Arg *ExceptionArg = Args.getLastArg(
453 options::OPT_fcxx_exceptions, options::OPT_fno_cxx_exceptions,
454 options::OPT_fexceptions, options::OPT_fno_exceptions);
455 if (ExceptionArg)
456 CXXExceptionsEnabled =
457 ExceptionArg->getOption().matches(options::OPT_fcxx_exceptions) ||
458 ExceptionArg->getOption().matches(options::OPT_fexceptions);
459
460 if (CXXExceptionsEnabled) {
461 CmdArgs.push_back("-fcxx-exceptions");
462
463 EH = true;
464 }
465 }
466
467 if (EH)
468 CmdArgs.push_back("-fexceptions");
469 }
470
471 static bool ShouldEnableAutolink(const ArgList &Args, const ToolChain &TC,
472 const JobAction &JA) {
473 bool Default = true;
474 if (TC.getTriple().isOSDarwin()) {
475 // The native darwin assembler doesn't support the linker_option directives,
476 // so we disable them if we think the .s file will be passed to it.
477 Default = TC.useIntegratedAs();
478 }
479 // The linker_option directives are intended for host compilation.
480 if (JA.isDeviceOffloading(Action::OFK_Cuda) ||
481 JA.isDeviceOffloading(Action::OFK_HIP))
482 Default = false;
483 return Args.hasFlag(options::OPT_fautolink, options::OPT_fno_autolink,
484 Default);
485 }
486
487 static bool ShouldDisableDwarfDirectory(const ArgList &Args,
488 const ToolChain &TC) {
489 bool UseDwarfDirectory =
490 Args.hasFlag(options::OPT_fdwarf_directory_asm,
491 options::OPT_fno_dwarf_directory_asm, TC.useIntegratedAs());
492 return !UseDwarfDirectory;
493 }
494
495 // Convert an arg of the form "-gN" or "-ggdbN" or one of their aliases
496 // to the corresponding DebugInfoKind.
497 static codegenoptions::DebugInfoKind DebugLevelToInfoKind(const Arg &A) {
498 assert(A.getOption().matches(options::OPT_gN_Group) &&
499 "Not a -g option that specifies a debug-info level");
500 if (A.getOption().matches(options::OPT_g0) ||
501 A.getOption().matches(options::OPT_ggdb0))
502 return codegenoptions::NoDebugInfo;
503 if (A.getOption().matches(options::OPT_gline_tables_only) ||
504 A.getOption().matches(options::OPT_ggdb1))
505 return codegenoptions::DebugLineTablesOnly;
506 if (A.getOption().matches(options::OPT_gline_directives_only))
507 return codegenoptions::DebugDirectivesOnly;
508 return codegenoptions::LimitedDebugInfo;
509 }
510
511 static bool mustUseNonLeafFramePointerForTarget(const llvm::Triple &Triple) {
512 switch (Triple.getArch()){
513 default:
514 return false;
515 case llvm::Triple::arm:
516 case llvm::Triple::thumb:
517 // ARM Darwin targets require a frame pointer to be always present to aid
518 // offline debugging via backtraces.
519 return Triple.isOSDarwin();
520 }
521 }
522
523 static bool useFramePointerForTargetByDefault(const ArgList &Args,
524 const llvm::Triple &Triple) {
525 if (Args.hasArg(options::OPT_pg))
526 return true;
527
528 switch (Triple.getArch()) {
529 case llvm::Triple::xcore:
530 case llvm::Triple::wasm32:
531 case llvm::Triple::wasm64:
532 case llvm::Triple::msp430:
533 // XCore never wants frame pointers, regardless of OS.
534 // WebAssembly never wants frame pointers.
535 return false;
536 case llvm::Triple::ppc:
537 case llvm::Triple::ppc64:
538 case llvm::Triple::ppc64le:
539 case llvm::Triple::riscv32:
540 case llvm::Triple::riscv64:
541 case llvm::Triple::amdgcn:
542 case llvm::Triple::r600:
543 return !areOptimizationsEnabled(Args);
544 default:
545 break;
546 }
547
548 if (Triple.isOSNetBSD()) {
549 return !areOptimizationsEnabled(Args);
550 }
551
552 if (Triple.isOSLinux() || Triple.getOS() == llvm::Triple::CloudABI ||
553 Triple.isOSHurd()) {
554 switch (Triple.getArch()) {
555 // Don't use a frame pointer on linux if optimizing for certain targets.
556 case llvm::Triple::mips64:
557 case llvm::Triple::mips64el:
558 case llvm::Triple::mips:
559 case llvm::Triple::mipsel:
560 case llvm::Triple::systemz:
561 case llvm::Triple::x86:
562 case llvm::Triple::x86_64:
563 return !areOptimizationsEnabled(Args);
564 default:
565 return true;
566 }
567 }
568
569 if (Triple.isOSWindows()) {
570 switch (Triple.getArch()) {
571 case llvm::Triple::x86:
572 return !areOptimizationsEnabled(Args);
573 case llvm::Triple::x86_64:
574 return Triple.isOSBinFormatMachO();
575 case llvm::Triple::arm:
576 case llvm::Triple::thumb:
577 // Windows on ARM builds with FPO disabled to aid fast stack walking
578 return true;
579 default:
580 // All other supported Windows ISAs use xdata unwind information, so frame
581 // pointers are not generally useful.
582 return false;
583 }
584 }
585
586 return true;
587 }
588
589 static CodeGenOptions::FramePointerKind
590 getFramePointerKind(const ArgList &Args, const llvm::Triple &Triple) {
591 // We have 4 states:
592 //
593 // 00) leaf retained, non-leaf retained
594 // 01) leaf retained, non-leaf omitted (this is invalid)
595 // 10) leaf omitted, non-leaf retained
596 // (what -momit-leaf-frame-pointer was designed for)
597 // 11) leaf omitted, non-leaf omitted
598 //
599 // "omit" options taking precedence over "no-omit" options is the only way
600 // to make 3 valid states representable
601 Arg *A = Args.getLastArg(options::OPT_fomit_frame_pointer,
602 options::OPT_fno_omit_frame_pointer);
603 bool OmitFP = A && A->getOption().matches(options::OPT_fomit_frame_pointer);
604 bool NoOmitFP =
605 A && A->getOption().matches(options::OPT_fno_omit_frame_pointer);
606 bool KeepLeaf = Args.hasFlag(options::OPT_momit_leaf_frame_pointer,
607 options::OPT_mno_omit_leaf_frame_pointer,
608 Triple.isAArch64() || Triple.isPS4CPU());
609 if (NoOmitFP || mustUseNonLeafFramePointerForTarget(Triple) ||
610 (!OmitFP && useFramePointerForTargetByDefault(Args, Triple))) {
611 if (KeepLeaf)
612 return CodeGenOptions::FramePointerKind::NonLeaf;
613 return CodeGenOptions::FramePointerKind::All;
614 }
615 return CodeGenOptions::FramePointerKind::None;
616 }
617
618 /// Add a CC1 option to specify the debug compilation directory.
619 static void addDebugCompDirArg(const ArgList &Args, ArgStringList &CmdArgs,
620 const llvm::vfs::FileSystem &VFS) {
621 if (Arg *A = Args.getLastArg(options::OPT_fdebug_compilation_dir)) {
622 CmdArgs.push_back("-fdebug-compilation-dir");
623 CmdArgs.push_back(A->getValue());
624 } else if (llvm::ErrorOr<std::string> CWD =
625 VFS.getCurrentWorkingDirectory()) {
626 CmdArgs.push_back("-fdebug-compilation-dir");
627 CmdArgs.push_back(Args.MakeArgString(*CWD));
628 }
629 }
630
631 /// Add a CC1 and CC1AS option to specify the debug file path prefix map.
632 static void addDebugPrefixMapArg(const Driver &D, const ArgList &Args, ArgStringList &CmdArgs) {
633 for (const Arg *A : Args.filtered(options::OPT_ffile_prefix_map_EQ,
634 options::OPT_fdebug_prefix_map_EQ)) {
635 StringRef Map = A->getValue();
636 if (Map.find('=') == StringRef::npos)
637 D.Diag(diag::err_drv_invalid_argument_to_option)
638 << Map << A->getOption().getName();
639 else
640 CmdArgs.push_back(Args.MakeArgString("-fdebug-prefix-map=" + Map));
641 A->claim();
642 }
643 }
644
645 /// Add a CC1 and CC1AS option to specify the macro file path prefix map.
646 static void addMacroPrefixMapArg(const Driver &D, const ArgList &Args,
647 ArgStringList &CmdArgs) {
648 for (const Arg *A : Args.filtered(options::OPT_ffile_prefix_map_EQ,
649 options::OPT_fmacro_prefix_map_EQ)) {
650 StringRef Map = A->getValue();
651 if (Map.find('=') == StringRef::npos)
652 D.Diag(diag::err_drv_invalid_argument_to_option)
653 << Map << A->getOption().getName();
654 else
655 CmdArgs.push_back(Args.MakeArgString("-fmacro-prefix-map=" + Map));
656 A->claim();
657 }
658 }
659
660 /// Vectorize at all optimization levels greater than 1 except for -Oz.
661 /// For -Oz the loop vectorizer is disabled, while the slp vectorizer is
662 /// enabled.
663 static bool shouldEnableVectorizerAtOLevel(const ArgList &Args, bool isSlpVec) {
664 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
665 if (A->getOption().matches(options::OPT_O4) ||
666 A->getOption().matches(options::OPT_Ofast))
667 return true;
668
669 if (A->getOption().matches(options::OPT_O0))
670 return false;
671
672 assert(A->getOption().matches(options::OPT_O) && "Must have a -O flag");
673
674 // Vectorize -Os.
675 StringRef S(A->getValue());
676 if (S == "s")
677 return true;
678
679 // Don't vectorize -Oz, unless it's the slp vectorizer.
680 if (S == "z")
681 return isSlpVec;
682
683 unsigned OptLevel = 0;
684 if (S.getAsInteger(10, OptLevel))
685 return false;
686
687 return OptLevel > 1;
688 }
689
690 return false;
691 }
692
693 /// Add -x lang to \p CmdArgs for \p Input.
694 static void addDashXForInput(const ArgList &Args, const InputInfo &Input,
695 ArgStringList &CmdArgs) {
696 // When using -verify-pch, we don't want to provide the type
697 // 'precompiled-header' if it was inferred from the file extension
698 if (Args.hasArg(options::OPT_verify_pch) && Input.getType() == types::TY_PCH)
699 return;
700
701 CmdArgs.push_back("-x");
702 if (Args.hasArg(options::OPT_rewrite_objc))
703 CmdArgs.push_back(types::getTypeName(types::TY_PP_ObjCXX));
704 else {
705 // Map the driver type to the frontend type. This is mostly an identity
706 // mapping, except that the distinction between module interface units
707 // and other source files does not exist at the frontend layer.
708 const char *ClangType;
709 switch (Input.getType()) {
710 case types::TY_CXXModule:
711 ClangType = "c++";
712 break;
713 case types::TY_PP_CXXModule:
714 ClangType = "c++-cpp-output";
715 break;
716 default:
717 ClangType = types::getTypeName(Input.getType());
718 break;
719 }
720 CmdArgs.push_back(ClangType);
721 }
722 }
723
724 static void appendUserToPath(SmallVectorImpl<char> &Result) {
725 #ifdef LLVM_ON_UNIX
726 const char *Username = getenv("LOGNAME");
727 #else
728 const char *Username = getenv("USERNAME");
729 #endif
730 if (Username) {
731 // Validate that LoginName can be used in a path, and get its length.
732 size_t Len = 0;
733 for (const char *P = Username; *P; ++P, ++Len) {
734 if (!clang::isAlphanumeric(*P) && *P != '_') {
735 Username = nullptr;
736 break;
737 }
738 }
739
740 if (Username && Len > 0) {
741 Result.append(Username, Username + Len);
742 return;
743 }
744 }
745
746 // Fallback to user id.
747 #ifdef LLVM_ON_UNIX
748 std::string UID = llvm::utostr(getuid());
749 #else
750 // FIXME: Windows seems to have an 'SID' that might work.
751 std::string UID = "9999";
752 #endif
753 Result.append(UID.begin(), UID.end());
754 }
755
756 static void addPGOAndCoverageFlags(const ToolChain &TC, Compilation &C,
757 const Driver &D, const InputInfo &Output,
758 const ArgList &Args,
759 ArgStringList &CmdArgs) {
760
761 auto *PGOGenerateArg = Args.getLastArg(options::OPT_fprofile_generate,
762 options::OPT_fprofile_generate_EQ,
763 options::OPT_fno_profile_generate);
764 if (PGOGenerateArg &&
765 PGOGenerateArg->getOption().matches(options::OPT_fno_profile_generate))
766 PGOGenerateArg = nullptr;
767
768 auto *CSPGOGenerateArg = Args.getLastArg(options::OPT_fcs_profile_generate,
769 options::OPT_fcs_profile_generate_EQ,
770 options::OPT_fno_profile_generate);
771 if (CSPGOGenerateArg &&
772 CSPGOGenerateArg->getOption().matches(options::OPT_fno_profile_generate))
773 CSPGOGenerateArg = nullptr;
774
775 auto *ProfileGenerateArg = Args.getLastArg(
776 options::OPT_fprofile_instr_generate,
777 options::OPT_fprofile_instr_generate_EQ,
778 options::OPT_fno_profile_instr_generate);
779 if (ProfileGenerateArg &&
780 ProfileGenerateArg->getOption().matches(
781 options::OPT_fno_profile_instr_generate))
782 ProfileGenerateArg = nullptr;
783
784 if (PGOGenerateArg && ProfileGenerateArg)
785 D.Diag(diag::err_drv_argument_not_allowed_with)
786 << PGOGenerateArg->getSpelling() << ProfileGenerateArg->getSpelling();
787
788 auto *ProfileUseArg = getLastProfileUseArg(Args);
789
790 if (PGOGenerateArg && ProfileUseArg)
791 D.Diag(diag::err_drv_argument_not_allowed_with)
792 << ProfileUseArg->getSpelling() << PGOGenerateArg->getSpelling();
793
794 if (ProfileGenerateArg && ProfileUseArg)
795 D.Diag(diag::err_drv_argument_not_allowed_with)
796 << ProfileGenerateArg->getSpelling() << ProfileUseArg->getSpelling();
797
798 if (CSPGOGenerateArg && PGOGenerateArg)
799 D.Diag(diag::err_drv_argument_not_allowed_with)
800 << CSPGOGenerateArg->getSpelling() << PGOGenerateArg->getSpelling();
801
802 if (ProfileGenerateArg) {
803 if (ProfileGenerateArg->getOption().matches(
804 options::OPT_fprofile_instr_generate_EQ))
805 CmdArgs.push_back(Args.MakeArgString(Twine("-fprofile-instrument-path=") +
806 ProfileGenerateArg->getValue()));
807 // The default is to use Clang Instrumentation.
808 CmdArgs.push_back("-fprofile-instrument=clang");
809 if (TC.getTriple().isWindowsMSVCEnvironment()) {
810 // Add dependent lib for clang_rt.profile
811 CmdArgs.push_back(Args.MakeArgString("--dependent-lib=" +
812 TC.getCompilerRT(Args, "profile")));
813 }
814 }
815
816 Arg *PGOGenArg = nullptr;
817 if (PGOGenerateArg) {
818 assert(!CSPGOGenerateArg);
819 PGOGenArg = PGOGenerateArg;
820 CmdArgs.push_back("-fprofile-instrument=llvm");
821 }
822 if (CSPGOGenerateArg) {
823 assert(!PGOGenerateArg);
824 PGOGenArg = CSPGOGenerateArg;
825 CmdArgs.push_back("-fprofile-instrument=csllvm");
826 }
827 if (PGOGenArg) {
828 if (TC.getTriple().isWindowsMSVCEnvironment()) {
829 CmdArgs.push_back(Args.MakeArgString("--dependent-lib=" +
830 TC.getCompilerRT(Args, "profile")));
831 }
832 if (PGOGenArg->getOption().matches(
833 PGOGenerateArg ? options::OPT_fprofile_generate_EQ
834 : options::OPT_fcs_profile_generate_EQ)) {
835 SmallString<128> Path(PGOGenArg->getValue());
836 llvm::sys::path::append(Path, "default_%m.profraw");
837 CmdArgs.push_back(
838 Args.MakeArgString(Twine("-fprofile-instrument-path=") + Path));
839 }
840 }
841
842 if (ProfileUseArg) {
843 if (ProfileUseArg->getOption().matches(options::OPT_fprofile_instr_use_EQ))
844 CmdArgs.push_back(Args.MakeArgString(
845 Twine("-fprofile-instrument-use-path=") + ProfileUseArg->getValue()));
846 else if ((ProfileUseArg->getOption().matches(
847 options::OPT_fprofile_use_EQ) ||
848 ProfileUseArg->getOption().matches(
849 options::OPT_fprofile_instr_use))) {
850 SmallString<128> Path(
851 ProfileUseArg->getNumValues() == 0 ? "" : ProfileUseArg->getValue());
852 if (Path.empty() || llvm::sys::fs::is_directory(Path))
853 llvm::sys::path::append(Path, "default.profdata");
854 CmdArgs.push_back(
855 Args.MakeArgString(Twine("-fprofile-instrument-use-path=") + Path));
856 }
857 }
858
859 bool EmitCovNotes = Args.hasArg(options::OPT_ftest_coverage) ||
860 Args.hasArg(options::OPT_coverage);
861 bool EmitCovData = Args.hasFlag(options::OPT_fprofile_arcs,
862 options::OPT_fno_profile_arcs, false) ||
863 Args.hasArg(options::OPT_coverage);
864 if (EmitCovNotes)
865 CmdArgs.push_back("-femit-coverage-notes");
866 if (EmitCovData)
867 CmdArgs.push_back("-femit-coverage-data");
868
869 if (Args.hasFlag(options::OPT_fcoverage_mapping,
870 options::OPT_fno_coverage_mapping, false)) {
871 if (!ProfileGenerateArg)
872 D.Diag(clang::diag::err_drv_argument_only_allowed_with)
873 << "-fcoverage-mapping"
874 << "-fprofile-instr-generate";
875
876 CmdArgs.push_back("-fcoverage-mapping");
877 }
878
879 if (Args.hasArg(options::OPT_fprofile_exclude_files_EQ)) {
880 auto *Arg = Args.getLastArg(options::OPT_fprofile_exclude_files_EQ);
881 if (!Args.hasArg(options::OPT_coverage))
882 D.Diag(clang::diag::err_drv_argument_only_allowed_with)
883 << "-fprofile-exclude-files="
884 << "--coverage";
885
886 StringRef v = Arg->getValue();
887 CmdArgs.push_back(
888 Args.MakeArgString(Twine("-fprofile-exclude-files=" + v)));
889 }
890
891 if (Args.hasArg(options::OPT_fprofile_filter_files_EQ)) {
892 auto *Arg = Args.getLastArg(options::OPT_fprofile_filter_files_EQ);
893 if (!Args.hasArg(options::OPT_coverage))
894 D.Diag(clang::diag::err_drv_argument_only_allowed_with)
895 << "-fprofile-filter-files="
896 << "--coverage";
897
898 StringRef v = Arg->getValue();
899 CmdArgs.push_back(Args.MakeArgString(Twine("-fprofile-filter-files=" + v)));
900 }
901
902 // Leave -fprofile-dir= an unused argument unless .gcda emission is
903 // enabled. To be polite, with '-fprofile-arcs -fno-profile-arcs' consider
904 // the flag used. There is no -fno-profile-dir, so the user has no
905 // targeted way to suppress the warning.
906 Arg *FProfileDir = nullptr;
907 if (Args.hasArg(options::OPT_fprofile_arcs) ||
908 Args.hasArg(options::OPT_coverage))
909 FProfileDir = Args.getLastArg(options::OPT_fprofile_dir);
910
911 // Put the .gcno and .gcda files (if needed) next to the object file or
912 // bitcode file in the case of LTO.
913 // FIXME: There should be a simpler way to find the object file for this
914 // input, and this code probably does the wrong thing for commands that
915 // compile and link all at once.
916 if ((Args.hasArg(options::OPT_c) || Args.hasArg(options::OPT_S)) &&
917 (EmitCovNotes || EmitCovData) && Output.isFilename()) {
918 SmallString<128> OutputFilename;
919 if (Arg *FinalOutput = C.getArgs().getLastArg(options::OPT__SLASH_Fo))
920 OutputFilename = FinalOutput->getValue();
921 else if (Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o))
922 OutputFilename = FinalOutput->getValue();
923 else
924 OutputFilename = llvm::sys::path::filename(Output.getBaseInput());
925 SmallString<128> CoverageFilename = OutputFilename;
926 if (llvm::sys::path::is_relative(CoverageFilename))
927 (void)D.getVFS().makeAbsolute(CoverageFilename);
928 llvm::sys::path::replace_extension(CoverageFilename, "gcno");
929
930 CmdArgs.push_back("-coverage-notes-file");
931 CmdArgs.push_back(Args.MakeArgString(CoverageFilename));
932
933 if (EmitCovData) {
934 if (FProfileDir) {
935 CoverageFilename = FProfileDir->getValue();
936 llvm::sys::path::append(CoverageFilename, OutputFilename);
937 }
938 llvm::sys::path::replace_extension(CoverageFilename, "gcda");
939 CmdArgs.push_back("-coverage-data-file");
940 CmdArgs.push_back(Args.MakeArgString(CoverageFilename));
941 }
942 }
943 }
944
945 /// Check whether the given input tree contains any compilation actions.
946 static bool ContainsCompileAction(const Action *A) {
947 if (isa<CompileJobAction>(A) || isa<BackendJobAction>(A))
948 return true;
949
950 for (const auto &AI : A->inputs())
951 if (ContainsCompileAction(AI))
952 return true;
953
954 return false;
955 }
956
957 /// Check if -relax-all should be passed to the internal assembler.
958 /// This is done by default when compiling non-assembler source with -O0.
959 static bool UseRelaxAll(Compilation &C, const ArgList &Args) {
960 bool RelaxDefault = true;
961
962 if (Arg *A = Args.getLastArg(options::OPT_O_Group))
963 RelaxDefault = A->getOption().matches(options::OPT_O0);
964
965 if (RelaxDefault) {
966 RelaxDefault = false;
967 for (const auto &Act : C.getActions()) {
968 if (ContainsCompileAction(Act)) {
969 RelaxDefault = true;
970 break;
971 }
972 }
973 }
974
975 return Args.hasFlag(options::OPT_mrelax_all, options::OPT_mno_relax_all,
976 RelaxDefault);
977 }
978
979 // Extract the integer N from a string spelled "-dwarf-N", returning 0
980 // on mismatch. The StringRef input (rather than an Arg) allows
981 // for use by the "-Xassembler" option parser.
982 static unsigned DwarfVersionNum(StringRef ArgValue) {
983 return llvm::StringSwitch<unsigned>(ArgValue)
984 .Case("-gdwarf-2", 2)
985 .Case("-gdwarf-3", 3)
986 .Case("-gdwarf-4", 4)
987 .Case("-gdwarf-5", 5)
988 .Default(0);
989 }
990
991 static void RenderDebugEnablingArgs(const ArgList &Args, ArgStringList &CmdArgs,
992 codegenoptions::DebugInfoKind DebugInfoKind,
993 unsigned DwarfVersion,
994 llvm::DebuggerKind DebuggerTuning) {
995 switch (DebugInfoKind) {
996 case codegenoptions::DebugDirectivesOnly:
997 CmdArgs.push_back("-debug-info-kind=line-directives-only");
998 break;
999 case codegenoptions::DebugLineTablesOnly:
1000 CmdArgs.push_back("-debug-info-kind=line-tables-only");
1001 break;
1002 case codegenoptions::DebugInfoConstructor:
1003 CmdArgs.push_back("-debug-info-kind=constructor");
1004 break;
1005 case codegenoptions::LimitedDebugInfo:
1006 CmdArgs.push_back("-debug-info-kind=limited");
1007 break;
1008 case codegenoptions::FullDebugInfo:
1009 CmdArgs.push_back("-debug-info-kind=standalone");
1010 break;
1011 default:
1012 break;
1013 }
1014 if (DwarfVersion > 0)
1015 CmdArgs.push_back(
1016 Args.MakeArgString("-dwarf-version=" + Twine(DwarfVersion)));
1017 switch (DebuggerTuning) {
1018 case llvm::DebuggerKind::GDB:
1019 CmdArgs.push_back("-debugger-tuning=gdb");
1020 break;
1021 case llvm::DebuggerKind::LLDB:
1022 CmdArgs.push_back("-debugger-tuning=lldb");
1023 break;
1024 case llvm::DebuggerKind::SCE:
1025 CmdArgs.push_back("-debugger-tuning=sce");
1026 break;
1027 default:
1028 break;
1029 }
1030 }
1031
1032 static bool checkDebugInfoOption(const Arg *A, const ArgList &Args,
1033 const Driver &D, const ToolChain &TC) {
1034 assert(A && "Expected non-nullptr argument.");
1035 if (TC.supportsDebugInfoOption(A))
1036 return true;
1037 D.Diag(diag::warn_drv_unsupported_debug_info_opt_for_target)
1038 << A->getAsString(Args) << TC.getTripleString();
1039 return false;
1040 }
1041
1042 static void RenderDebugInfoCompressionArgs(const ArgList &Args,
1043 ArgStringList &CmdArgs,
1044 const Driver &D,
1045 const ToolChain &TC) {
1046 const Arg *A = Args.getLastArg(options::OPT_gz, options::OPT_gz_EQ);
1047 if (!A)
1048 return;
1049 if (checkDebugInfoOption(A, Args, D, TC)) {
1050 if (A->getOption().getID() == options::OPT_gz) {
1051 if (llvm::zlib::isAvailable())
1052 CmdArgs.push_back("--compress-debug-sections");
1053 else
1054 D.Diag(diag::warn_debug_compression_unavailable);
1055 return;
1056 }
1057
1058 StringRef Value = A->getValue();
1059 if (Value == "none") {
1060 CmdArgs.push_back("--compress-debug-sections=none");
1061 } else if (Value == "zlib" || Value == "zlib-gnu") {
1062 if (llvm::zlib::isAvailable()) {
1063 CmdArgs.push_back(
1064 Args.MakeArgString("--compress-debug-sections=" + Twine(Value)));
1065 } else {
1066 D.Diag(diag::warn_debug_compression_unavailable);
1067 }
1068 } else {
1069 D.Diag(diag::err_drv_unsupported_option_argument)
1070 << A->getOption().getName() << Value;
1071 }
1072 }
1073 }
1074
1075 static const char *RelocationModelName(llvm::Reloc::Model Model) {
1076 switch (Model) {
1077 case llvm::Reloc::Static:
1078 return "static";
1079 case llvm::Reloc::PIC_:
1080 return "pic";
1081 case llvm::Reloc::DynamicNoPIC:
1082 return "dynamic-no-pic";
1083 case llvm::Reloc::ROPI:
1084 return "ropi";
1085 case llvm::Reloc::RWPI:
1086 return "rwpi";
1087 case llvm::Reloc::ROPI_RWPI:
1088 return "ropi-rwpi";
1089 }
1090 llvm_unreachable("Unknown Reloc::Model kind");
1091 }
1092
1093 void Clang::AddPreprocessingOptions(Compilation &C, const JobAction &JA,
1094 const Driver &D, const ArgList &Args,
1095 ArgStringList &CmdArgs,
1096 const InputInfo &Output,
1097 const InputInfoList &Inputs) const {
1098 const bool IsIAMCU = getToolChain().getTriple().isOSIAMCU();
1099
1100 CheckPreprocessingOptions(D, Args);
1101
1102 Args.AddLastArg(CmdArgs, options::OPT_C);
1103 Args.AddLastArg(CmdArgs, options::OPT_CC);
1104
1105 // Handle dependency file generation.
1106 Arg *ArgM = Args.getLastArg(options::OPT_MM);
1107 if (!ArgM)
1108 ArgM = Args.getLastArg(options::OPT_M);
1109 Arg *ArgMD = Args.getLastArg(options::OPT_MMD);
1110 if (!ArgMD)
1111 ArgMD = Args.getLastArg(options::OPT_MD);
1112
1113 // -M and -MM imply -w.
1114 if (ArgM)
1115 CmdArgs.push_back("-w");
1116 else
1117 ArgM = ArgMD;
1118
1119 if (ArgM) {
1120 // Determine the output location.
1121 const char *DepFile;
1122 if (Arg *MF = Args.getLastArg(options::OPT_MF)) {
1123 DepFile = MF->getValue();
1124 C.addFailureResultFile(DepFile, &JA);
1125 } else if (Output.getType() == types::TY_Dependencies) {
1126 DepFile = Output.getFilename();
1127 } else if (!ArgMD) {
1128 DepFile = "-";
1129 } else {
1130 DepFile = getDependencyFileName(Args, Inputs);
1131 C.addFailureResultFile(DepFile, &JA);
1132 }
1133 CmdArgs.push_back("-dependency-file");
1134 CmdArgs.push_back(DepFile);
1135
1136 bool HasTarget = false;
1137 for (const Arg *A : Args.filtered(options::OPT_MT, options::OPT_MQ)) {
1138 HasTarget = true;
1139 A->claim();
1140 if (A->getOption().matches(options::OPT_MT)) {
1141 A->render(Args, CmdArgs);
1142 } else {
1143 CmdArgs.push_back("-MT");
1144 SmallString<128> Quoted;
1145 QuoteTarget(A->getValue(), Quoted);
1146 CmdArgs.push_back(Args.MakeArgString(Quoted));
1147 }
1148 }
1149
1150 // Add a default target if one wasn't specified.
1151 if (!HasTarget) {
1152 const char *DepTarget;
1153
1154 // If user provided -o, that is the dependency target, except
1155 // when we are only generating a dependency file.
1156 Arg *OutputOpt = Args.getLastArg(options::OPT_o);
1157 if (OutputOpt && Output.getType() != types::TY_Dependencies) {
1158 DepTarget = OutputOpt->getValue();
1159 } else {
1160 // Otherwise derive from the base input.
1161 //
1162 // FIXME: This should use the computed output file location.
1163 SmallString<128> P(Inputs[0].getBaseInput());
1164 llvm::sys::path::replace_extension(P, "o");
1165 DepTarget = Args.MakeArgString(llvm::sys::path::filename(P));
1166 }
1167
1168 CmdArgs.push_back("-MT");
1169 SmallString<128> Quoted;
1170 QuoteTarget(DepTarget, Quoted);
1171 CmdArgs.push_back(Args.MakeArgString(Quoted));
1172 }
1173
1174 if (ArgM->getOption().matches(options::OPT_M) ||
1175 ArgM->getOption().matches(options::OPT_MD))
1176 CmdArgs.push_back("-sys-header-deps");
1177 if ((isa<PrecompileJobAction>(JA) &&
1178 !Args.hasArg(options::OPT_fno_module_file_deps)) ||
1179 Args.hasArg(options::OPT_fmodule_file_deps))
1180 CmdArgs.push_back("-module-file-deps");
1181 }
1182
1183 if (Args.hasArg(options::OPT_MG)) {
1184 if (!ArgM || ArgM->getOption().matches(options::OPT_MD) ||
1185 ArgM->getOption().matches(options::OPT_MMD))
1186 D.Diag(diag::err_drv_mg_requires_m_or_mm);
1187 CmdArgs.push_back("-MG");
1188 }
1189
1190 Args.AddLastArg(CmdArgs, options::OPT_MP);
1191 Args.AddLastArg(CmdArgs, options::OPT_MV);
1192
1193 // Add offload include arguments specific for CUDA. This must happen before
1194 // we -I or -include anything else, because we must pick up the CUDA headers
1195 // from the particular CUDA installation, rather than from e.g.
1196 // /usr/local/include.
1197 if (JA.isOffloading(Action::OFK_Cuda))
1198 getToolChain().AddCudaIncludeArgs(Args, CmdArgs);
1199
1200 // If we are offloading to a target via OpenMP we need to include the
1201 // openmp_wrappers folder which contains alternative system headers.
1202 if (JA.isDeviceOffloading(Action::OFK_OpenMP) &&
1203 getToolChain().getTriple().isNVPTX()){
1204 if (!Args.hasArg(options::OPT_nobuiltininc)) {
1205 // Add openmp_wrappers/* to our system include path. This lets us wrap
1206 // standard library headers.
1207 SmallString<128> P(D.ResourceDir);
1208 llvm::sys::path::append(P, "include");
1209 llvm::sys::path::append(P, "openmp_wrappers");
1210 CmdArgs.push_back("-internal-isystem");
1211 CmdArgs.push_back(Args.MakeArgString(P));
1212 }
1213
1214 CmdArgs.push_back("-include");
1215 CmdArgs.push_back("__clang_openmp_math_declares.h");
1216 }
1217
1218 // Add -i* options, and automatically translate to
1219 // -include-pch/-include-pth for transparent PCH support. It's
1220 // wonky, but we include looking for .gch so we can support seamless
1221 // replacement into a build system already set up to be generating
1222 // .gch files.
1223
1224 if (getToolChain().getDriver().IsCLMode()) {
1225 const Arg *YcArg = Args.getLastArg(options::OPT__SLASH_Yc);
1226 const Arg *YuArg = Args.getLastArg(options::OPT__SLASH_Yu);
1227 if (YcArg && JA.getKind() >= Action::PrecompileJobClass &&
1228 JA.getKind() <= Action::AssembleJobClass) {
1229 CmdArgs.push_back(Args.MakeArgString("-building-pch-with-obj"));
1230 }
1231 if (YcArg || YuArg) {
1232 StringRef ThroughHeader = YcArg ? YcArg->getValue() : YuArg->getValue();
1233 if (!isa<PrecompileJobAction>(JA)) {
1234 CmdArgs.push_back("-include-pch");
1235 CmdArgs.push_back(Args.MakeArgString(D.GetClPchPath(
1236 C, !ThroughHeader.empty()
1237 ? ThroughHeader
1238 : llvm::sys::path::filename(Inputs[0].getBaseInput()))));
1239 }
1240
1241 if (ThroughHeader.empty()) {
1242 CmdArgs.push_back(Args.MakeArgString(
1243 Twine("-pch-through-hdrstop-") + (YcArg ? "create" : "use")));
1244 } else {
1245 CmdArgs.push_back(
1246 Args.MakeArgString(Twine("-pch-through-header=") + ThroughHeader));
1247 }
1248 }
1249 }
1250
1251 bool RenderedImplicitInclude = false;
1252 for (const Arg *A : Args.filtered(options::OPT_clang_i_Group)) {
1253 if (A->getOption().matches(options::OPT_include)) {
1254 // Handling of gcc-style gch precompiled headers.
1255 bool IsFirstImplicitInclude = !RenderedImplicitInclude;
1256 RenderedImplicitInclude = true;
1257
1258 bool FoundPCH = false;
1259 SmallString<128> P(A->getValue());
1260 // We want the files to have a name like foo.h.pch. Add a dummy extension
1261 // so that replace_extension does the right thing.
1262 P += ".dummy";
1263 llvm::sys::path::replace_extension(P, "pch");
1264 if (llvm::sys::fs::exists(P))
1265 FoundPCH = true;
1266
1267 if (!FoundPCH) {
1268 llvm::sys::path::replace_extension(P, "gch");
1269 if (llvm::sys::fs::exists(P)) {
1270 FoundPCH = true;
1271 }
1272 }
1273
1274 if (FoundPCH) {
1275 if (IsFirstImplicitInclude) {
1276 A->claim();
1277 CmdArgs.push_back("-include-pch");
1278 CmdArgs.push_back(Args.MakeArgString(P));
1279 continue;
1280 } else {
1281 // Ignore the PCH if not first on command line and emit warning.
1282 D.Diag(diag::warn_drv_pch_not_first_include) << P
1283 << A->getAsString(Args);
1284 }
1285 }
1286 } else if (A->getOption().matches(options::OPT_isystem_after)) {
1287 // Handling of paths which must come late. These entries are handled by
1288 // the toolchain itself after the resource dir is inserted in the right
1289 // search order.
1290 // Do not claim the argument so that the use of the argument does not
1291 // silently go unnoticed on toolchains which do not honour the option.
1292 continue;
1293 } else if (A->getOption().matches(options::OPT_stdlibxx_isystem)) {
1294 // Translated to -internal-isystem by the driver, no need to pass to cc1.
1295 continue;
1296 }
1297
1298 // Not translated, render as usual.
1299 A->claim();
1300 A->render(Args, CmdArgs);
1301 }
1302
1303 Args.AddAllArgs(CmdArgs,
1304 {options::OPT_D, options::OPT_U, options::OPT_I_Group,
1305 options::OPT_F, options::OPT_index_header_map});
1306
1307 // Add -Wp, and -Xpreprocessor if using the preprocessor.
1308
1309 // FIXME: There is a very unfortunate problem here, some troubled
1310 // souls abuse -Wp, to pass preprocessor options in gcc syntax. To
1311 // really support that we would have to parse and then translate
1312 // those options. :(
1313 Args.AddAllArgValues(CmdArgs, options::OPT_Wp_COMMA,
1314 options::OPT_Xpreprocessor);
1315
1316 // -I- is a deprecated GCC feature, reject it.
1317 if (Arg *A = Args.getLastArg(options::OPT_I_))
1318 D.Diag(diag::err_drv_I_dash_not_supported) << A->getAsString(Args);
1319
1320 // If we have a --sysroot, and don't have an explicit -isysroot flag, add an
1321 // -isysroot to the CC1 invocation.
1322 StringRef sysroot = C.getSysRoot();
1323 if (sysroot != "") {
1324 if (!Args.hasArg(options::OPT_isysroot)) {
1325 CmdArgs.push_back("-isysroot");
1326 CmdArgs.push_back(C.getArgs().MakeArgString(sysroot));
1327 }
1328 }
1329
1330 // Parse additional include paths from environment variables.
1331 // FIXME: We should probably sink the logic for handling these from the
1332 // frontend into the driver. It will allow deleting 4 otherwise unused flags.
1333 // CPATH - included following the user specified includes (but prior to
1334 // builtin and standard includes).
1335 addDirectoryList(Args, CmdArgs, "-I", "CPATH");
1336 // C_INCLUDE_PATH - system includes enabled when compiling C.
1337 addDirectoryList(Args, CmdArgs, "-c-isystem", "C_INCLUDE_PATH");
1338 // CPLUS_INCLUDE_PATH - system includes enabled when compiling C++.
1339 addDirectoryList(Args, CmdArgs, "-cxx-isystem", "CPLUS_INCLUDE_PATH");
1340 // OBJC_INCLUDE_PATH - system includes enabled when compiling ObjC.
1341 addDirectoryList(Args, CmdArgs, "-objc-isystem", "OBJC_INCLUDE_PATH");
1342 // OBJCPLUS_INCLUDE_PATH - system includes enabled when compiling ObjC++.
1343 addDirectoryList(Args, CmdArgs, "-objcxx-isystem", "OBJCPLUS_INCLUDE_PATH");
1344
1345 // While adding the include arguments, we also attempt to retrieve the
1346 // arguments of related offloading toolchains or arguments that are specific
1347 // of an offloading programming model.
1348
1349 // Add C++ include arguments, if needed.
1350 if (types::isCXX(Inputs[0].getType())) {
1351 bool HasStdlibxxIsystem = Args.hasArg(options::OPT_stdlibxx_isystem);
1352 forAllAssociatedToolChains(
1353 C, JA, getToolChain(),
1354 [&Args, &CmdArgs, HasStdlibxxIsystem](const ToolChain &TC) {
1355 HasStdlibxxIsystem ? TC.AddClangCXXStdlibIsystemArgs(Args, CmdArgs)
1356 : TC.AddClangCXXStdlibIncludeArgs(Args, CmdArgs);
1357 });
1358 }
1359
1360 // Add system include arguments for all targets but IAMCU.
1361 if (!IsIAMCU)
1362 forAllAssociatedToolChains(C, JA, getToolChain(),
1363 [&Args, &CmdArgs](const ToolChain &TC) {
1364 TC.AddClangSystemIncludeArgs(Args, CmdArgs);
1365 });
1366 else {
1367 // For IAMCU add special include arguments.
1368 getToolChain().AddIAMCUIncludeArgs(Args, CmdArgs);
1369 }
1370
1371 addMacroPrefixMapArg(D, Args, CmdArgs);
1372 }
1373
1374 // FIXME: Move to target hook.
1375 static bool isSignedCharDefault(const llvm::Triple &Triple) {
1376 switch (Triple.getArch()) {
1377 default:
1378 return true;
1379
1380 case llvm::Triple::aarch64:
1381 case llvm::Triple::aarch64_32:
1382 case llvm::Triple::aarch64_be:
1383 case llvm::Triple::arm:
1384 case llvm::Triple::armeb:
1385 case llvm::Triple::thumb:
1386 case llvm::Triple::thumbeb:
1387 if (Triple.isOSDarwin() || Triple.isOSWindows())
1388 return true;
1389 return false;
1390
1391 case llvm::Triple::ppc:
1392 case llvm::Triple::ppc64:
1393 if (Triple.isOSDarwin())
1394 return true;
1395 return false;
1396
1397 case llvm::Triple::hexagon:
1398 case llvm::Triple::ppc64le:
1399 case llvm::Triple::riscv32:
1400 case llvm::Triple::riscv64:
1401 case llvm::Triple::systemz:
1402 case llvm::Triple::xcore:
1403 return false;
1404 }
1405 }
1406
1407 static bool isNoCommonDefault(const llvm::Triple &Triple) {
1408 switch (Triple.getArch()) {
1409 default:
1410 if (Triple.isOSFuchsia())
1411 return true;
1412 return false;
1413
1414 case llvm::Triple::xcore:
1415 case llvm::Triple::wasm32:
1416 case llvm::Triple::wasm64:
1417 return true;
1418 }
1419 }
1420
1421 static bool hasMultipleInvocations(const llvm::Triple &Triple,
1422 const ArgList &Args) {
1423 // Supported only on Darwin where we invoke the compiler multiple times
1424 // followed by an invocation to lipo.
1425 if (!Triple.isOSDarwin())
1426 return false;
1427 // If more than one "-arch <arch>" is specified, we're targeting multiple
1428 // architectures resulting in a fat binary.
1429 return Args.getAllArgValues(options::OPT_arch).size() > 1;
1430 }
1431
1432 static bool checkRemarksOptions(const Driver &D, const ArgList &Args,
1433 const llvm::Triple &Triple) {
1434 // When enabling remarks, we need to error if:
1435 // * The remark file is specified but we're targeting multiple architectures,
1436 // which means more than one remark file is being generated.
1437 bool hasMultipleInvocations = ::hasMultipleInvocations(Triple, Args);
1438 bool hasExplicitOutputFile =
1439 Args.getLastArg(options::OPT_foptimization_record_file_EQ);
1440 if (hasMultipleInvocations && hasExplicitOutputFile) {
1441 D.Diag(diag::err_drv_invalid_output_with_multiple_archs)
1442 << "-foptimization-record-file";
1443 return false;
1444 }
1445 return true;
1446 }
1447
1448 static void renderRemarksOptions(const ArgList &Args, ArgStringList &CmdArgs,
1449 const llvm::Triple &Triple,
1450 const InputInfo &Input,
1451 const InputInfo &Output, const JobAction &JA) {
1452 StringRef Format = "yaml";
1453 if (const Arg *A = Args.getLastArg(options::OPT_fsave_optimization_record_EQ))
1454 Format = A->getValue();
1455
1456 CmdArgs.push_back("-opt-record-file");
1457
1458 const Arg *A = Args.getLastArg(options::OPT_foptimization_record_file_EQ);
1459 if (A) {
1460 CmdArgs.push_back(A->getValue());
1461 } else {
1462 bool hasMultipleArchs =
1463 Triple.isOSDarwin() && // Only supported on Darwin platforms.
1464 Args.getAllArgValues(options::OPT_arch).size() > 1;
1465
1466 SmallString<128> F;
1467
1468 if (Args.hasArg(options::OPT_c) || Args.hasArg(options::OPT_S)) {
1469 if (Arg *FinalOutput = Args.getLastArg(options::OPT_o))
1470 F = FinalOutput->getValue();
1471 } else {
1472 if (Format != "yaml" && // For YAML, keep the original behavior.
1473 Triple.isOSDarwin() && // Enable this only on darwin, since it's the only platform supporting .dSYM bundles.
1474 Output.isFilename())
1475 F = Output.getFilename();
1476 }
1477
1478 if (F.empty()) {
1479 // Use the input filename.
1480 F = llvm::sys::path::stem(Input.getBaseInput());
1481
1482 // If we're compiling for an offload architecture (i.e. a CUDA device),
1483 // we need to make the file name for the device compilation different
1484 // from the host compilation.
1485 if (!JA.isDeviceOffloading(Action::OFK_None) &&
1486 !JA.isDeviceOffloading(Action::OFK_Host)) {
1487 llvm::sys::path::replace_extension(F, "");
1488 F += Action::GetOffloadingFileNamePrefix(JA.getOffloadingDeviceKind(),
1489 Triple.normalize());
1490 F += "-";
1491 F += JA.getOffloadingArch();
1492 }
1493 }
1494
1495 // If we're having more than one "-arch", we should name the files
1496 // differently so that every cc1 invocation writes to a different file.
1497 // We're doing that by appending "-<arch>" with "<arch>" being the arch
1498 // name from the triple.
1499 if (hasMultipleArchs) {
1500 // First, remember the extension.
1501 SmallString<64> OldExtension = llvm::sys::path::extension(F);
1502 // then, remove it.
1503 llvm::sys::path::replace_extension(F, "");
1504 // attach -<arch> to it.
1505 F += "-";
1506 F += Triple.getArchName();
1507 // put back the extension.
1508 llvm::sys::path::replace_extension(F, OldExtension);
1509 }
1510
1511 SmallString<32> Extension;
1512 Extension += "opt.";
1513 Extension += Format;
1514
1515 llvm::sys::path::replace_extension(F, Extension);
1516 CmdArgs.push_back(Args.MakeArgString(F));
1517 }
1518
1519 if (const Arg *A =
1520 Args.getLastArg(options::OPT_foptimization_record_passes_EQ)) {
1521 CmdArgs.push_back("-opt-record-passes");
1522 CmdArgs.push_back(A->getValue());
1523 }
1524
1525 if (!Format.empty()) {
1526 CmdArgs.push_back("-opt-record-format");
1527 CmdArgs.push_back(Format.data());
1528 }
1529 }
1530
1531 namespace {
1532 void RenderARMABI(const llvm::Triple &Triple, const ArgList &Args,
1533 ArgStringList &CmdArgs) {
1534 // Select the ABI to use.
1535 // FIXME: Support -meabi.
1536 // FIXME: Parts of this are duplicated in the backend, unify this somehow.
1537 const char *ABIName = nullptr;
1538 if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) {
1539 ABIName = A->getValue();
1540 } else {
1541 std::string CPU = getCPUName(Args, Triple, /*FromAs*/ false);
1542 ABIName = llvm::ARM::computeDefaultTargetABI(Triple, CPU).data();
1543 }
1544
1545 CmdArgs.push_back("-target-abi");
1546 CmdArgs.push_back(ABIName);
1547 }
1548 }
1549
1550 void Clang::AddARMTargetArgs(const llvm::Triple &Triple, const ArgList &Args,
1551 ArgStringList &CmdArgs, bool KernelOrKext) const {
1552 RenderARMABI(Triple, Args, CmdArgs);
1553
1554 // Determine floating point ABI from the options & target defaults.
1555 arm::FloatABI ABI = arm::getARMFloatABI(getToolChain(), Args);
1556 if (ABI == arm::FloatABI::Soft) {
1557 // Floating point operations and argument passing are soft.
1558 // FIXME: This changes CPP defines, we need -target-soft-float.
1559 CmdArgs.push_back("-msoft-float");
1560 CmdArgs.push_back("-mfloat-abi");
1561 CmdArgs.push_back("soft");
1562 } else if (ABI == arm::FloatABI::SoftFP) {
1563 // Floating point operations are hard, but argument passing is soft.
1564 CmdArgs.push_back("-mfloat-abi");
1565 CmdArgs.push_back("soft");
1566 } else {
1567 // Floating point operations and argument passing are hard.
1568 assert(ABI == arm::FloatABI::Hard && "Invalid float abi!");
1569 CmdArgs.push_back("-mfloat-abi");
1570 CmdArgs.push_back("hard");
1571 }
1572
1573 // Forward the -mglobal-merge option for explicit control over the pass.
1574 if (Arg *A = Args.getLastArg(options::OPT_mglobal_merge,
1575 options::OPT_mno_global_merge)) {
1576 CmdArgs.push_back("-mllvm");
1577 if (A->getOption().matches(options::OPT_mno_global_merge))
1578 CmdArgs.push_back("-arm-global-merge=false");
1579 else
1580 CmdArgs.push_back("-arm-global-merge=true");
1581 }
1582
1583 if (!Args.hasFlag(options::OPT_mimplicit_float,
1584 options::OPT_mno_implicit_float, true))
1585 CmdArgs.push_back("-no-implicit-float");
1586
1587 if (Args.getLastArg(options::OPT_mcmse))
1588 CmdArgs.push_back("-mcmse");
1589 }
1590
1591 void Clang::RenderTargetOptions(const llvm::Triple &EffectiveTriple,
1592 const ArgList &Args, bool KernelOrKext,
1593 ArgStringList &CmdArgs) const {
1594 const ToolChain &TC = getToolChain();
1595
1596 // Add the target features
1597 getTargetFeatures(TC, EffectiveTriple, Args, CmdArgs, false);
1598
1599 // Add target specific flags.
1600 switch (TC.getArch()) {
1601 default:
1602 break;
1603
1604 case llvm::Triple::arm:
1605 case llvm::Triple::armeb:
1606 case llvm::Triple::thumb:
1607 case llvm::Triple::thumbeb:
1608 // Use the effective triple, which takes into account the deployment target.
1609 AddARMTargetArgs(EffectiveTriple, Args, CmdArgs, KernelOrKext);
1610 CmdArgs.push_back("-fallow-half-arguments-and-returns");
1611 break;
1612
1613 case llvm::Triple::aarch64:
1614 case llvm::Triple::aarch64_32:
1615 case llvm::Triple::aarch64_be:
1616 AddAArch64TargetArgs(Args, CmdArgs);
1617 CmdArgs.push_back("-fallow-half-arguments-and-returns");
1618 break;
1619
1620 case llvm::Triple::mips:
1621 case llvm::Triple::mipsel:
1622 case llvm::Triple::mips64:
1623 case llvm::Triple::mips64el:
1624 AddMIPSTargetArgs(Args, CmdArgs);
1625 break;
1626
1627 case llvm::Triple::ppc:
1628 case llvm::Triple::ppc64:
1629 case llvm::Triple::ppc64le:
1630 AddPPCTargetArgs(Args, CmdArgs);
1631 break;
1632
1633 case llvm::Triple::riscv32:
1634 case llvm::Triple::riscv64:
1635 AddRISCVTargetArgs(Args, CmdArgs);
1636 break;
1637
1638 case llvm::Triple::sparc:
1639 case llvm::Triple::sparcel:
1640 case llvm::Triple::sparcv9:
1641 AddSparcTargetArgs(Args, CmdArgs);
1642 break;
1643
1644 case llvm::Triple::systemz:
1645 AddSystemZTargetArgs(Args, CmdArgs);
1646 break;
1647
1648 case llvm::Triple::x86:
1649 case llvm::Triple::x86_64:
1650 AddX86TargetArgs(Args, CmdArgs);
1651 break;
1652
1653 case llvm::Triple::lanai:
1654 AddLanaiTargetArgs(Args, CmdArgs);
1655 break;
1656
1657 case llvm::Triple::hexagon:
1658 AddHexagonTargetArgs(Args, CmdArgs);
1659 break;
1660
1661 case llvm::Triple::wasm32:
1662 case llvm::Triple::wasm64:
1663 AddWebAssemblyTargetArgs(Args, CmdArgs);
1664 break;
1665 }
1666 }
1667
1668 namespace {
1669 void RenderAArch64ABI(const llvm::Triple &Triple, const ArgList &Args,
1670 ArgStringList &CmdArgs) {
1671 const char *ABIName = nullptr;
1672 if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ))
1673 ABIName = A->getValue();
1674 else if (Triple.isOSDarwin())
1675 ABIName = "darwinpcs";
1676 else
1677 ABIName = "aapcs";
1678
1679 CmdArgs.push_back("-target-abi");
1680 CmdArgs.push_back(ABIName);
1681 }
1682 }
1683
1684 void Clang::AddAArch64TargetArgs(const ArgList &Args,
1685 ArgStringList &CmdArgs) const {
1686 const llvm::Triple &Triple = getToolChain().getEffectiveTriple();
1687
1688 if (!Args.hasFlag(options::OPT_mred_zone, options::OPT_mno_red_zone, true) ||
1689 Args.hasArg(options::OPT_mkernel) ||
1690 Args.hasArg(options::OPT_fapple_kext))
1691 CmdArgs.push_back("-disable-red-zone");
1692
1693 if (!Args.hasFlag(options::OPT_mimplicit_float,
1694 options::OPT_mno_implicit_float, true))
1695 CmdArgs.push_back("-no-implicit-float");
1696
1697 RenderAArch64ABI(Triple, Args, CmdArgs);
1698
1699 if (Arg *A = Args.getLastArg(options::OPT_mfix_cortex_a53_835769,
1700 options::OPT_mno_fix_cortex_a53_835769)) {
1701 CmdArgs.push_back("-mllvm");
1702 if (A->getOption().matches(options::OPT_mfix_cortex_a53_835769))
1703 CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=1");
1704 else
1705 CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=0");
1706 } else if (Triple.isAndroid()) {
1707 // Enabled A53 errata (835769) workaround by default on android
1708 CmdArgs.push_back("-mllvm");
1709 CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=1");
1710 }
1711
1712 // Forward the -mglobal-merge option for explicit control over the pass.
1713 if (Arg *A = Args.getLastArg(options::OPT_mglobal_merge,
1714 options::OPT_mno_global_merge)) {
1715 CmdArgs.push_back("-mllvm");
1716 if (A->getOption().matches(options::OPT_mno_global_merge))
1717 CmdArgs.push_back("-aarch64-enable-global-merge=false");
1718 else
1719 CmdArgs.push_back("-aarch64-enable-global-merge=true");
1720 }
1721
1722 // Enable/disable return address signing and indirect branch targets.
1723 if (Arg *A = Args.getLastArg(options::OPT_msign_return_address_EQ,
1724 options::OPT_mbranch_protection_EQ)) {
1725
1726 const Driver &D = getToolChain().getDriver();
1727
1728 StringRef Scope, Key;
1729 bool IndirectBranches;
1730
1731 if (A->getOption().matches(options::OPT_msign_return_address_EQ)) {
1732 Scope = A->getValue();
1733 if (!Scope.equals("none") && !Scope.equals("non-leaf") &&
1734 !Scope.equals("all"))
1735 D.Diag(diag::err_invalid_branch_protection)
1736 << Scope << A->getAsString(Args);
1737 Key = "a_key";
1738 IndirectBranches = false;
1739 } else {
1740 StringRef Err;
1741 llvm::AArch64::ParsedBranchProtection PBP;
1742 if (!llvm::AArch64::parseBranchProtection(A->getValue(), PBP, Err))
1743 D.Diag(diag::err_invalid_branch_protection)
1744 << Err << A->getAsString(Args);
1745 Scope = PBP.Scope;
1746 Key = PBP.Key;
1747 IndirectBranches = PBP.BranchTargetEnforcement;
1748 }
1749
1750 CmdArgs.push_back(
1751 Args.MakeArgString(Twine("-msign-return-address=") + Scope));
1752 CmdArgs.push_back(
1753 Args.MakeArgString(Twine("-msign-return-address-key=") + Key));
1754 if (IndirectBranches)
1755 CmdArgs.push_back("-mbranch-target-enforce");
1756 }
1757 }
1758
1759 void Clang::AddMIPSTargetArgs(const ArgList &Args,
1760 ArgStringList &CmdArgs) const {
1761 const Driver &D = getToolChain().getDriver();
1762 StringRef CPUName;
1763 StringRef ABIName;
1764 const llvm::Triple &Triple = getToolChain().getTriple();
1765 mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName);
1766
1767 CmdArgs.push_back("-target-abi");
1768 CmdArgs.push_back(ABIName.data());
1769
1770 mips::FloatABI ABI = mips::getMipsFloatABI(D, Args, Triple);
1771 if (ABI == mips::FloatABI::Soft) {
1772 // Floating point operations and argument passing are soft.
1773 CmdArgs.push_back("-msoft-float");
1774 CmdArgs.push_back("-mfloat-abi");
1775 CmdArgs.push_back("soft");
1776 } else {
1777 // Floating point operations and argument passing are hard.
1778 assert(ABI == mips::FloatABI::Hard && "Invalid float abi!");
1779 CmdArgs.push_back("-mfloat-abi");
1780 CmdArgs.push_back("hard");
1781 }
1782
1783 if (Arg *A = Args.getLastArg(options::OPT_mldc1_sdc1,
1784 options::OPT_mno_ldc1_sdc1)) {
1785 if (A->getOption().matches(options::OPT_mno_ldc1_sdc1)) {
1786 CmdArgs.push_back("-mllvm");
1787 CmdArgs.push_back("-mno-ldc1-sdc1");
1788 }
1789 }
1790
1791 if (Arg *A = Args.getLastArg(options::OPT_mcheck_zero_division,
1792 options::OPT_mno_check_zero_division)) {
1793 if (A->getOption().matches(options::OPT_mno_check_zero_division)) {
1794 CmdArgs.push_back("-mllvm");
1795 CmdArgs.push_back("-mno-check-zero-division");
1796 }
1797 }
1798
1799 if (Arg *A = Args.getLastArg(options::OPT_G)) {
1800 StringRef v = A->getValue();
1801 CmdArgs.push_back("-mllvm");
1802 CmdArgs.push_back(Args.MakeArgString("-mips-ssection-threshold=" + v));
1803 A->claim();
1804 }
1805
1806 Arg *GPOpt = Args.getLastArg(options::OPT_mgpopt, options::OPT_mno_gpopt);
1807 Arg *ABICalls =
1808 Args.getLastArg(options::OPT_mabicalls, options::OPT_mno_abicalls);
1809
1810 // -mabicalls is the default for many MIPS environments, even with -fno-pic.
1811 // -mgpopt is the default for static, -fno-pic environments but these two
1812 // options conflict. We want to be certain that -mno-abicalls -mgpopt is
1813 // the only case where -mllvm -mgpopt is passed.
1814 // NOTE: We need a warning here or in the backend to warn when -mgpopt is
1815 // passed explicitly when compiling something with -mabicalls
1816 // (implictly) in affect. Currently the warning is in the backend.
1817 //
1818 // When the ABI in use is N64, we also need to determine the PIC mode that
1819 // is in use, as -fno-pic for N64 implies -mno-abicalls.
1820 bool NoABICalls =
1821 ABICalls && ABICalls->getOption().matches(options::OPT_mno_abicalls);
1822
1823 llvm::Reloc::Model RelocationModel;
1824 unsigned PICLevel;
1825 bool IsPIE;
1826 std::tie(RelocationModel, PICLevel, IsPIE) =
1827 ParsePICArgs(getToolChain(), Args);
1828
1829 NoABICalls = NoABICalls ||
1830 (RelocationModel == llvm::Reloc::Static && ABIName == "n64");
1831
1832 bool WantGPOpt = GPOpt && GPOpt->getOption().matches(options::OPT_mgpopt);
1833 // We quietly ignore -mno-gpopt as the backend defaults to -mno-gpopt.
1834 if (NoABICalls && (!GPOpt || WantGPOpt)) {
1835 CmdArgs.push_back("-mllvm");
1836 CmdArgs.push_back("-mgpopt");
1837
1838 Arg *LocalSData = Args.getLastArg(options::OPT_mlocal_sdata,
1839 options::OPT_mno_local_sdata);
1840 Arg *ExternSData = Args.getLastArg(options::OPT_mextern_sdata,
1841 options::OPT_mno_extern_sdata);
1842 Arg *EmbeddedData = Args.getLastArg(options::OPT_membedded_data,
1843 options::OPT_mno_embedded_data);
1844 if (LocalSData) {
1845 CmdArgs.push_back("-mllvm");
1846 if (LocalSData->getOption().matches(options::OPT_mlocal_sdata)) {
1847 CmdArgs.push_back("-mlocal-sdata=1");
1848 } else {
1849 CmdArgs.push_back("-mlocal-sdata=0");
1850 }
1851 LocalSData->claim();
1852 }
1853
1854 if (ExternSData) {
1855 CmdArgs.push_back("-mllvm");
1856 if (ExternSData->getOption().matches(options::OPT_mextern_sdata)) {
1857 CmdArgs.push_back("-mextern-sdata=1");
1858 } else {
1859 CmdArgs.push_back("-mextern-sdata=0");
1860 }
1861 ExternSData->claim();
1862 }
1863
1864 if (EmbeddedData) {
1865 CmdArgs.push_back("-mllvm");
1866 if (EmbeddedData->getOption().matches(options::OPT_membedded_data)) {
1867 CmdArgs.push_back("-membedded-data=1");
1868 } else {
1869 CmdArgs.push_back("-membedded-data=0");
1870 }
1871 EmbeddedData->claim();
1872 }
1873
1874 } else if ((!ABICalls || (!NoABICalls && ABICalls)) && WantGPOpt)
1875 D.Diag(diag::warn_drv_unsupported_gpopt) << (ABICalls ? 0 : 1);
1876
1877 if (GPOpt)
1878 GPOpt->claim();
1879
1880 if (Arg *A = Args.getLastArg(options::OPT_mcompact_branches_EQ)) {
1881 StringRef Val = StringRef(A->getValue());
1882 if (mips::hasCompactBranches(CPUName)) {
1883 if (Val == "never" || Val == "always" || Val == "optimal") {
1884 CmdArgs.push_back("-mllvm");
1885 CmdArgs.push_back(Args.MakeArgString("-mips-compact-branches=" + Val));
1886 } else
1887 D.Diag(diag::err_drv_unsupported_option_argument)
1888 << A->getOption().getName() << Val;
1889 } else
1890 D.Diag(diag::warn_target_unsupported_compact_branches) << CPUName;
1891 }
1892
1893 if (Arg *A = Args.getLastArg(options::OPT_mrelax_pic_calls,
1894 options::OPT_mno_relax_pic_calls)) {
1895 if (A->getOption().matches(options::OPT_mno_relax_pic_calls)) {
1896 CmdArgs.push_back("-mllvm");
1897 CmdArgs.push_back("-mips-jalr-reloc=0");
1898 }
1899 }
1900 }
1901
1902 void Clang::AddPPCTargetArgs(const ArgList &Args,
1903 ArgStringList &CmdArgs) const {
1904 // Select the ABI to use.
1905 const char *ABIName = nullptr;
1906 const llvm::Triple &T = getToolChain().getTriple();
1907 if (T.isOSBinFormatELF()) {
1908 switch (getToolChain().getArch()) {
1909 case llvm::Triple::ppc64: {
1910 // When targeting a processor that supports QPX, or if QPX is
1911 // specifically enabled, default to using the ABI that supports QPX (so
1912 // long as it is not specifically disabled).
1913 bool HasQPX = false;
1914 if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ))
1915 HasQPX = A->getValue() == StringRef("a2q");
1916 HasQPX = Args.hasFlag(options::OPT_mqpx, options::OPT_mno_qpx, HasQPX);
1917 if (HasQPX) {
1918 ABIName = "elfv1-qpx";
1919 break;
1920 }
1921
1922 if (T.isMusl() || (T.isOSFreeBSD() && T.getOSMajorVersion() >= 13))
1923 ABIName = "elfv2";
1924 else
1925 ABIName = "elfv1";
1926 break;
1927 }
1928 case llvm::Triple::ppc64le:
1929 ABIName = "elfv2";
1930 break;
1931 default:
1932 break;
1933 }
1934 }
1935
1936 bool IEEELongDouble = false;
1937 for (const Arg *A : Args.filtered(options::OPT_mabi_EQ)) {
1938 StringRef V = A->getValue();
1939 if (V == "ieeelongdouble")
1940 IEEELongDouble = true;
1941 else if (V == "ibmlongdouble")
1942 IEEELongDouble = false;
1943 else if (V != "altivec")
1944 // The ppc64 linux abis are all "altivec" abis by default. Accept and ignore
1945 // the option if given as we don't have backend support for any targets
1946 // that don't use the altivec abi.
1947 ABIName = A->getValue();
1948 }
1949 if (IEEELongDouble)
1950 CmdArgs.push_back("-mabi=ieeelongdouble");
1951
1952 ppc::FloatABI FloatABI =
1953 ppc::getPPCFloatABI(getToolChain().getDriver(), Args);
1954
1955 if (FloatABI == ppc::FloatABI::Soft) {
1956 // Floating point operations and argument passing are soft.
1957 CmdArgs.push_back("-msoft-float");
1958 CmdArgs.push_back("-mfloat-abi");
1959 CmdArgs.push_back("soft");
1960 } else {
1961 // Floating point operations and argument passing are hard.
1962 assert(FloatABI == ppc::FloatABI::Hard && "Invalid float abi!");
1963 CmdArgs.push_back("-mfloat-abi");
1964 CmdArgs.push_back("hard");
1965 }
1966
1967 if (ABIName) {
1968 CmdArgs.push_back("-target-abi");
1969 CmdArgs.push_back(ABIName);
1970 }
1971 }
1972
1973 void Clang::AddRISCVTargetArgs(const ArgList &Args,
1974 ArgStringList &CmdArgs) const {
1975 const llvm::Triple &Triple = getToolChain().getTriple();
1976 StringRef ABIName = riscv::getRISCVABI(Args, Triple);
1977
1978 CmdArgs.push_back("-target-abi");
1979 CmdArgs.push_back(ABIName.data());
1980 }
1981
1982 void Clang::AddSparcTargetArgs(const ArgList &Args,
1983 ArgStringList &CmdArgs) const {
1984 sparc::FloatABI FloatABI =
1985 sparc::getSparcFloatABI(getToolChain().getDriver(), Args);
1986
1987 if (FloatABI == sparc::FloatABI::Soft) {
1988 // Floating point operations and argument passing are soft.
1989 CmdArgs.push_back("-msoft-float");
1990 CmdArgs.push_back("-mfloat-abi");
1991 CmdArgs.push_back("soft");
1992 } else {
1993 // Floating point operations and argument passing are hard.
1994 assert(FloatABI == sparc::FloatABI::Hard && "Invalid float abi!");
1995 CmdArgs.push_back("-mfloat-abi");
1996 CmdArgs.push_back("hard");
1997 }
1998 }
1999
2000 void Clang::AddSystemZTargetArgs(const ArgList &Args,
2001 ArgStringList &CmdArgs) const {
2002 bool HasBackchain = Args.hasFlag(options::OPT_mbackchain,
2003 options::OPT_mno_backchain, false);
2004 bool HasPackedStack = Args.hasFlag(options::OPT_mpacked_stack,
2005 options::OPT_mno_packed_stack, false);
2006 if (HasBackchain && HasPackedStack) {
2007 const Driver &D = getToolChain().getDriver();
2008 D.Diag(diag::err_drv_unsupported_opt)
2009 << Args.getLastArg(options::OPT_mpacked_stack)->getAsString(Args) +
2010 " " + Args.getLastArg(options::OPT_mbackchain)->getAsString(Args);
2011 }
2012 if (HasBackchain)
2013 CmdArgs.push_back("-mbackchain");
2014 if (HasPackedStack)
2015 CmdArgs.push_back("-mpacked-stack");
2016 }
2017
2018 static void addX86AlignBranchArgs(const Driver &D, const ArgList &Args,
2019 ArgStringList &CmdArgs) {
2020 if (Args.hasArg(options::OPT_mbranches_within_32B_boundaries)) {
2021 CmdArgs.push_back("-mllvm");
2022 CmdArgs.push_back("-x86-branches-within-32B-boundaries");
2023 }
2024 if (const Arg *A = Args.getLastArg(options::OPT_malign_branch_boundary_EQ)) {
2025 StringRef Value = A->getValue();
2026 unsigned Boundary;
2027 if (Value.getAsInteger(10, Boundary) || Boundary < 16 ||
2028 !llvm::isPowerOf2_64(Boundary)) {
2029 D.Diag(diag::err_drv_invalid_argument_to_option)
2030 << Value << A->getOption().getName();
2031 } else {
2032 CmdArgs.push_back("-mllvm");
2033 CmdArgs.push_back(
2034 Args.MakeArgString("-x86-align-branch-boundary=" + Twine(Boundary)));
2035 }
2036 }
2037 if (const Arg *A = Args.getLastArg(options::OPT_malign_branch_EQ)) {
2038 std::string AlignBranch;
2039 for (StringRef T : A->getValues()) {
2040 if (T != "fused" && T != "jcc" && T != "jmp" && T != "call" &&
2041 T != "ret" && T != "indirect")
2042 D.Diag(diag::err_drv_invalid_malign_branch_EQ)
2043 << T << "fused, jcc, jmp, call, ret, indirect";
2044 if (!AlignBranch.empty())
2045 AlignBranch += '+';
2046 AlignBranch += T;
2047 }
2048 CmdArgs.push_back("-mllvm");
2049 CmdArgs.push_back(Args.MakeArgString("-x86-align-branch=" + AlignBranch));
2050 }
2051 if (const Arg *A =
2052 Args.getLastArg(options::OPT_malign_branch_prefix_size_EQ)) {
2053 StringRef Value = A->getValue();
2054 unsigned PrefixSize;
2055 if (Value.getAsInteger(10, PrefixSize) || PrefixSize > 5) {
2056 D.Diag(diag::err_drv_invalid_argument_to_option)
2057 << Value << A->getOption().getName();
2058 } else {
2059 CmdArgs.push_back("-mllvm");
2060 CmdArgs.push_back(Args.MakeArgString("-x86-align-branch-prefix-size=" +
2061 Twine(PrefixSize)));
2062 }
2063 }
2064 }
2065
2066 void Clang::AddX86TargetArgs(const ArgList &Args,
2067 ArgStringList &CmdArgs) const {
2068 const Driver &D = getToolChain().getDriver();
2069 addX86AlignBranchArgs(D, Args, CmdArgs);
2070
2071 if (!Args.hasFlag(options::OPT_mred_zone, options::OPT_mno_red_zone, true) ||
2072 Args.hasArg(options::OPT_mkernel) ||
2073 Args.hasArg(options::OPT_fapple_kext))
2074 CmdArgs.push_back("-disable-red-zone");
2075
2076 if (!Args.hasFlag(options::OPT_mtls_direct_seg_refs,
2077 options::OPT_mno_tls_direct_seg_refs, true))
2078 CmdArgs.push_back("-mno-tls-direct-seg-refs");
2079
2080 // Default to avoid implicit floating-point for kernel/kext code, but allow
2081 // that to be overridden with -mno-soft-float.
2082 bool NoImplicitFloat = (Args.hasArg(options::OPT_mkernel) ||
2083 Args.hasArg(options::OPT_fapple_kext));
2084 if (Arg *A = Args.getLastArg(
2085 options::OPT_msoft_float, options::OPT_mno_soft_float,
2086 options::OPT_mimplicit_float, options::OPT_mno_implicit_float)) {
2087 const Option &O = A->getOption();
2088 NoImplicitFloat = (O.matches(options::OPT_mno_implicit_float) ||
2089 O.matches(options::OPT_msoft_float));
2090 }
2091 if (NoImplicitFloat)
2092 CmdArgs.push_back("-no-implicit-float");
2093
2094 if (Arg *A = Args.getLastArg(options::OPT_masm_EQ)) {
2095 StringRef Value = A->getValue();
2096 if (Value == "intel" || Value == "att") {
2097 CmdArgs.push_back("-mllvm");
2098 CmdArgs.push_back(Args.MakeArgString("-x86-asm-syntax=" + Value));
2099 } else {
2100 D.Diag(diag::err_drv_unsupported_option_argument)
2101 << A->getOption().getName() << Value;
2102 }
2103 } else if (D.IsCLMode()) {
2104 CmdArgs.push_back("-mllvm");
2105 CmdArgs.push_back("-x86-asm-syntax=intel");
2106 }
2107
2108 // Set flags to support MCU ABI.
2109 if (Args.hasFlag(options::OPT_miamcu, options::OPT_mno_iamcu, false)) {
2110 CmdArgs.push_back("-mfloat-abi");
2111 CmdArgs.push_back("soft");
2112 CmdArgs.push_back("-mstack-alignment=4");
2113 }
2114 }
2115
2116 void Clang::AddHexagonTargetArgs(const ArgList &Args,
2117 ArgStringList &CmdArgs) const {
2118 CmdArgs.push_back("-mqdsp6-compat");
2119 CmdArgs.push_back("-Wreturn-type");
2120
2121 if (auto G = toolchains::HexagonToolChain::getSmallDataThreshold(Args)) {
2122 CmdArgs.push_back("-mllvm");
2123 CmdArgs.push_back(Args.MakeArgString("-hexagon-small-data-threshold=" +
2124 Twine(G.getValue())));
2125 }
2126
2127 if (!Args.hasArg(options::OPT_fno_short_enums))
2128 CmdArgs.push_back("-fshort-enums");
2129 if (Args.getLastArg(options::OPT_mieee_rnd_near)) {
2130 CmdArgs.push_back("-mllvm");
2131 CmdArgs.push_back("-enable-hexagon-ieee-rnd-near");
2132 }
2133 CmdArgs.push_back("-mllvm");
2134 CmdArgs.push_back("-machine-sink-split=0");
2135 }
2136
2137 void Clang::AddLanaiTargetArgs(const ArgList &Args,
2138 ArgStringList &CmdArgs) const {
2139 if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) {
2140 StringRef CPUName = A->getValue();
2141
2142 CmdArgs.push_back("-target-cpu");
2143 CmdArgs.push_back(Args.MakeArgString(CPUName));
2144 }
2145 if (Arg *A = Args.getLastArg(options::OPT_mregparm_EQ)) {
2146 StringRef Value = A->getValue();
2147 // Only support mregparm=4 to support old usage. Report error for all other
2148 // cases.
2149 int Mregparm;
2150 if (Value.getAsInteger(10, Mregparm)) {
2151 if (Mregparm != 4) {
2152 getToolChain().getDriver().Diag(
2153 diag::err_drv_unsupported_option_argument)
2154 << A->getOption().getName() << Value;
2155 }
2156 }
2157 }
2158 }
2159
2160 void Clang::AddWebAssemblyTargetArgs(const ArgList &Args,
2161 ArgStringList &CmdArgs) const {
2162 // Default to "hidden" visibility.
2163 if (!Args.hasArg(options::OPT_fvisibility_EQ,
2164 options::OPT_fvisibility_ms_compat)) {
2165 CmdArgs.push_back("-fvisibility");
2166 CmdArgs.push_back("hidden");
2167 }
2168 }
2169
2170 void Clang::DumpCompilationDatabase(Compilation &C, StringRef Filename,
2171 StringRef Target, const InputInfo &Output,
2172 const InputInfo &Input, const ArgList &Args) const {
2173 // If this is a dry run, do not create the compilation database file.
2174 if (C.getArgs().hasArg(options::OPT__HASH_HASH_HASH))
2175 return;
2176
2177 using llvm::yaml::escape;
2178 const Driver &D = getToolChain().getDriver();
2179
2180 if (!CompilationDatabase) {
2181 std::error_code EC;
2182 auto File = std::make_unique<llvm::raw_fd_ostream>(Filename, EC,
2183 llvm::sys::fs::OF_Text);
2184 if (EC) {
2185 D.Diag(clang::diag::err_drv_compilationdatabase) << Filename
2186 << EC.message();
2187 return;
2188 }
2189 CompilationDatabase = std::move(File);
2190 }
2191 auto &CDB = *CompilationDatabase;
2192 auto CWD = D.getVFS().getCurrentWorkingDirectory();
2193 if (!CWD)
2194 CWD = ".";
2195 CDB << "{ \"directory\": \"" << escape(*CWD) << "\"";
2196 CDB << ", \"file\": \"" << escape(Input.getFilename()) << "\"";
2197 CDB << ", \"output\": \"" << escape(Output.getFilename()) << "\"";
2198 CDB << ", \"arguments\": [\"" << escape(D.ClangExecutable) << "\"";
2199 SmallString<128> Buf;
2200 Buf = "-x";
2201 Buf += types::getTypeName(Input.getType());
2202 CDB << ", \"" << escape(Buf) << "\"";
2203 if (!D.SysRoot.empty() && !Args.hasArg(options::OPT__sysroot_EQ)) {
2204 Buf = "--sysroot=";
2205 Buf += D.SysRoot;
2206 CDB << ", \"" << escape(Buf) << "\"";
2207 }
2208 CDB << ", \"" << escape(Input.getFilename()) << "\"";
2209 for (auto &A: Args) {
2210 auto &O = A->getOption();
2211 // Skip language selection, which is positional.
2212 if (O.getID() == options::OPT_x)
2213 continue;
2214 // Skip writing dependency output and the compilation database itself.
2215 if (O.getGroup().isValid() && O.getGroup().getID() == options::OPT_M_Group)
2216 continue;
2217 if (O.getID() == options::OPT_gen_cdb_fragment_path)
2218 continue;
2219 // Skip inputs.
2220 if (O.getKind() == Option::InputClass)
2221 continue;
2222 // All other arguments are quoted and appended.
2223 ArgStringList ASL;
2224 A->render(Args, ASL);
2225 for (auto &it: ASL)
2226 CDB << ", \"" << escape(it) << "\"";
2227 }
2228 Buf = "--target=";
2229 Buf += Target;
2230 CDB << ", \"" << escape(Buf) << "\"]},\n";
2231 }
2232
2233 void Clang::DumpCompilationDatabaseFragmentToDir(
2234 StringRef Dir, Compilation &C, StringRef Target, const InputInfo &Output,
2235 const InputInfo &Input, const llvm::opt::ArgList &Args) const {
2236 // If this is a dry run, do not create the compilation database file.
2237 if (C.getArgs().hasArg(options::OPT__HASH_HASH_HASH))
2238 return;
2239
2240 if (CompilationDatabase)
2241 DumpCompilationDatabase(C, "", Target, Output, Input, Args);
2242
2243 SmallString<256> Path = Dir;
2244 const auto &Driver = C.getDriver();
2245 Driver.getVFS().makeAbsolute(Path);
2246 auto Err = llvm::sys::fs::create_directory(Path, /*IgnoreExisting=*/true);
2247 if (Err) {
2248 Driver.Diag(diag::err_drv_compilationdatabase) << Dir << Err.message();
2249 return;
2250 }
2251
2252 llvm::sys::path::append(
2253 Path,
2254 Twine(llvm::sys::path::filename(Input.getFilename())) + ".%%%%.json");
2255 int FD;
2256 SmallString<256> TempPath;
2257 Err = llvm::sys::fs::createUniqueFile(Path, FD, TempPath);
2258 if (Err) {
2259 Driver.Diag(diag::err_drv_compilationdatabase) << Path << Err.message();
2260 return;
2261 }
2262 CompilationDatabase =
2263 std::make_unique<llvm::raw_fd_ostream>(FD, /*shouldClose=*/true);
2264 DumpCompilationDatabase(C, "", Target, Output, Input, Args);
2265 }
2266
2267 static void CollectArgsForIntegratedAssembler(Compilation &C,
2268 const ArgList &Args,
2269 ArgStringList &CmdArgs,
2270 const Driver &D) {
2271 if (UseRelaxAll(C, Args))
2272 CmdArgs.push_back("-mrelax-all");
2273
2274 // Only default to -mincremental-linker-compatible if we think we are
2275 // targeting the MSVC linker.
2276 bool DefaultIncrementalLinkerCompatible =
2277 C.getDefaultToolChain().getTriple().isWindowsMSVCEnvironment();
2278 if (Args.hasFlag(options::OPT_mincremental_linker_compatible,
2279 options::OPT_mno_incremental_linker_compatible,
2280 DefaultIncrementalLinkerCompatible))
2281 CmdArgs.push_back("-mincremental-linker-compatible");
2282
2283 switch (C.getDefaultToolChain().getArch()) {
2284 case llvm::Triple::arm:
2285 case llvm::Triple::armeb:
2286 case llvm::Triple::thumb:
2287 case llvm::Triple::thumbeb:
2288 if (Arg *A = Args.getLastArg(options::OPT_mimplicit_it_EQ)) {
2289 StringRef Value = A->getValue();
2290 if (Value == "always" || Value == "never" || Value == "arm" ||
2291 Value == "thumb") {
2292 CmdArgs.push_back("-mllvm");
2293 CmdArgs.push_back(Args.MakeArgString("-arm-implicit-it=" + Value));
2294 } else {
2295 D.Diag(diag::err_drv_unsupported_option_argument)
2296 << A->getOption().getName() << Value;
2297 }
2298 }
2299 break;
2300 default:
2301 break;
2302 }
2303
2304 // If you add more args here, also add them to the block below that
2305 // starts with "// If CollectArgsForIntegratedAssembler() isn't called below".
2306
2307 // When passing -I arguments to the assembler we sometimes need to
2308 // unconditionally take the next argument. For example, when parsing
2309 // '-Wa,-I -Wa,foo' we need to accept the -Wa,foo arg after seeing the
2310 // -Wa,-I arg and when parsing '-Wa,-I,foo' we need to accept the 'foo'
2311 // arg after parsing the '-I' arg.
2312 bool TakeNextArg = false;
2313
2314 bool UseRelaxRelocations = C.getDefaultToolChain().useRelaxRelocations();
2315 bool UseNoExecStack = C.getDefaultToolChain().isNoExecStackDefault();
2316 const char *MipsTargetFeature = nullptr;
2317 for (const Arg *A :
2318 Args.filtered(options::OPT_Wa_COMMA, options::OPT_Xassembler)) {
2319 A->claim();
2320
2321 for (StringRef Value : A->getValues()) {
2322 if (TakeNextArg) {
2323 CmdArgs.push_back(Value.data());
2324 TakeNextArg = false;
2325 continue;
2326 }
2327
2328 if (C.getDefaultToolChain().getTriple().isOSBinFormatCOFF() &&
2329 Value == "-mbig-obj")
2330 continue; // LLVM handles bigobj automatically
2331
2332 switch (C.getDefaultToolChain().getArch()) {
2333 default:
2334 break;
2335 case llvm::Triple::thumb:
2336 case llvm::Triple::thumbeb:
2337 case llvm::Triple::arm:
2338 case llvm::Triple::armeb:
2339 if (Value == "-mthumb")
2340 // -mthumb has already been processed in ComputeLLVMTriple()
2341 // recognize but skip over here.
2342 continue;
2343 break;
2344 case llvm::Triple::mips:
2345 case llvm::Triple::mipsel:
2346 case llvm::Triple::mips64:
2347 case llvm::Triple::mips64el:
2348 if (Value == "--trap") {
2349 CmdArgs.push_back("-target-feature");
2350 CmdArgs.push_back("+use-tcc-in-div");
2351 continue;
2352 }
2353 if (Value == "--break") {
2354 CmdArgs.push_back("-target-feature");
2355 CmdArgs.push_back("-use-tcc-in-div");
2356 continue;
2357 }
2358 if (Value.startswith("-msoft-float")) {
2359 CmdArgs.push_back("-target-feature");
2360 CmdArgs.push_back("+soft-float");
2361 continue;
2362 }
2363 if (Value.startswith("-mhard-float")) {
2364 CmdArgs.push_back("-target-feature");
2365 CmdArgs.push_back("-soft-float");
2366 continue;
2367 }
2368
2369 MipsTargetFeature = llvm::StringSwitch<const char *>(Value)
2370 .Case("-mips1", "+mips1")
2371 .Case("-mips2", "+mips2")
2372 .Case("-mips3", "+mips3")
2373 .Case("-mips4", "+mips4")
2374 .Case("-mips5", "+mips5")
2375 .Case("-mips32", "+mips32")
2376 .Case("-mips32r2", "+mips32r2")
2377 .Case("-mips32r3", "+mips32r3")
2378 .Case("-mips32r5", "+mips32r5")
2379 .Case("-mips32r6", "+mips32r6")
2380 .Case("-mips64", "+mips64")
2381 .Case("-mips64r2", "+mips64r2")
2382 .Case("-mips64r3", "+mips64r3")
2383 .Case("-mips64r5", "+mips64r5")
2384 .Case("-mips64r6", "+mips64r6")
2385 .Default(nullptr);
2386 if (MipsTargetFeature)
2387 continue;
2388 }
2389
2390 if (Value == "-force_cpusubtype_ALL") {
2391 // Do nothing, this is the default and we don't support anything else.
2392 } else if (Value == "-L") {
2393 CmdArgs.push_back("-msave-temp-labels");
2394 } else if (Value == "--fatal-warnings") {
2395 CmdArgs.push_back("-massembler-fatal-warnings");
2396 } else if (Value == "--no-warn" || Value == "-W") {
2397 CmdArgs.push_back("-massembler-no-warn");
2398 } else if (Value == "--noexecstack") {
2399 UseNoExecStack = true;
2400 } else if (Value.startswith("-compress-debug-sections") ||
2401 Value.startswith("--compress-debug-sections") ||
2402 Value == "-nocompress-debug-sections" ||
2403 Value == "--nocompress-debug-sections") {
2404 CmdArgs.push_back(Value.data());
2405 } else if (Value == "-mrelax-relocations=yes" ||
2406 Value == "--mrelax-relocations=yes") {
2407 UseRelaxRelocations = true;
2408 } else if (Value == "-mrelax-relocations=no" ||
2409 Value == "--mrelax-relocations=no") {
2410 UseRelaxRelocations = false;
2411 } else if (Value.startswith("-I")) {
2412 CmdArgs.push_back(Value.data());
2413 // We need to consume the next argument if the current arg is a plain
2414 // -I. The next arg will be the include directory.
2415 if (Value == "-I")
2416 TakeNextArg = true;
2417 } else if (Value.startswith("-gdwarf-")) {
2418 // "-gdwarf-N" options are not cc1as options.
2419 unsigned DwarfVersion = DwarfVersionNum(Value);
2420 if (DwarfVersion == 0) { // Send it onward, and let cc1as complain.
2421 CmdArgs.push_back(Value.data());
2422 } else {
2423 RenderDebugEnablingArgs(Args, CmdArgs,
2424 codegenoptions::LimitedDebugInfo,
2425 DwarfVersion, llvm::DebuggerKind::Default);
2426 }
2427 } else if (Value.startswith("-mcpu") || Value.startswith("-mfpu") ||
2428 Value.startswith("-mhwdiv") || Value.startswith("-march")) {
2429 // Do nothing, we'll validate it later.
2430 } else if (Value == "-defsym") {
2431 if (A->getNumValues() != 2) {
2432 D.Diag(diag::err_drv_defsym_invalid_format) << Value;
2433 break;
2434 }
2435 const char *S = A->getValue(1);
2436 auto Pair = StringRef(S).split('=');
2437 auto Sym = Pair.first;
2438 auto SVal = Pair.second;
2439
2440 if (Sym.empty() || SVal.empty()) {
2441 D.Diag(diag::err_drv_defsym_invalid_format) << S;
2442 break;
2443 }
2444 int64_t IVal;
2445 if (SVal.getAsInteger(0, IVal)) {
2446 D.Diag(diag::err_drv_defsym_invalid_symval) << SVal;
2447 break;
2448 }
2449 CmdArgs.push_back(Value.data());
2450 TakeNextArg = true;
2451 } else if (Value == "-fdebug-compilation-dir") {
2452 CmdArgs.push_back("-fdebug-compilation-dir");
2453 TakeNextArg = true;
2454 } else if (Value.consume_front("-fdebug-compilation-dir=")) {
2455 // The flag is a -Wa / -Xassembler argument and Options doesn't
2456 // parse the argument, so this isn't automatically aliased to
2457 // -fdebug-compilation-dir (without '=') here.
2458 CmdArgs.push_back("-fdebug-compilation-dir");
2459 CmdArgs.push_back(Value.data());
2460 } else {
2461 D.Diag(diag::err_drv_unsupported_option_argument)
2462 << A->getOption().getName() << Value;
2463 }
2464 }
2465 }
2466 if (UseRelaxRelocations)
2467 CmdArgs.push_back("--mrelax-relocations");
2468 if (UseNoExecStack)
2469 CmdArgs.push_back("-mnoexecstack");
2470 if (MipsTargetFeature != nullptr) {
2471 CmdArgs.push_back("-target-feature");
2472 CmdArgs.push_back(MipsTargetFeature);
2473 }
2474
2475 // forward -fembed-bitcode to assmebler
2476 if (C.getDriver().embedBitcodeEnabled() ||
2477 C.getDriver().embedBitcodeMarkerOnly())
2478 Args.AddLastArg(CmdArgs, options::OPT_fembed_bitcode_EQ);
2479 }
2480
2481 static void RenderFloatingPointOptions(const ToolChain &TC, const Driver &D,
2482 bool OFastEnabled, const ArgList &Args,
2483 ArgStringList &CmdArgs) {
2484 // Handle various floating point optimization flags, mapping them to the
2485 // appropriate LLVM code generation flags. This is complicated by several
2486 // "umbrella" flags, so we do this by stepping through the flags incrementally
2487 // adjusting what we think is enabled/disabled, then at the end setting the
2488 // LLVM flags based on the final state.
2489 bool HonorINFs = true;
2490 bool HonorNaNs = true;
2491 // -fmath-errno is the default on some platforms, e.g. BSD-derived OSes.
2492 bool MathErrno = TC.IsMathErrnoDefault();
2493 bool AssociativeMath = false;
2494 bool ReciprocalMath = false;
2495 bool SignedZeros = true;
2496 bool TrappingMath = false; // Implemented via -ffp-exception-behavior
2497 bool TrappingMathPresent = false; // Is trapping-math in args, and not
2498 // overriden by ffp-exception-behavior?
2499 bool RoundingFPMath = false;
2500 bool RoundingMathPresent = false; // Is rounding-math in args?
2501 // -ffp-model values: strict, fast, precise
2502 StringRef FPModel = "";
2503 // -ffp-exception-behavior options: strict, maytrap, ignore
2504 StringRef FPExceptionBehavior = "";
2505 StringRef DenormalFPMath = "";
2506 StringRef FPContract = "";
2507 bool StrictFPModel = false;
2508
2509 if (const Arg *A = Args.getLastArg(options::OPT_flimited_precision_EQ)) {
2510 CmdArgs.push_back("-mlimit-float-precision");
2511 CmdArgs.push_back(A->getValue());
2512 }
2513
2514 for (const Arg *A : Args) {
2515 auto optID = A->getOption().getID();
2516 bool PreciseFPModel = false;
2517 switch (optID) {
2518 default:
2519 break;
2520 case options::OPT_ffp_model_EQ: {
2521 // If -ffp-model= is seen, reset to fno-fast-math
2522 HonorINFs = true;
2523 HonorNaNs = true;
2524 // Turning *off* -ffast-math restores the toolchain default.
2525 MathErrno = TC.IsMathErrnoDefault();
2526 AssociativeMath = false;
2527 ReciprocalMath = false;
2528 SignedZeros = true;
2529 // -fno_fast_math restores default denormal and fpcontract handling
2530 DenormalFPMath = "";
2531 FPContract = "";
2532 StringRef Val = A->getValue();
2533 if (OFastEnabled && !Val.equals("fast")) {
2534 // Only -ffp-model=fast is compatible with OFast, ignore.
2535 D.Diag(clang::diag::warn_drv_overriding_flag_option)
2536 << Args.MakeArgString("-ffp-model=" + Val)
2537 << "-Ofast";
2538 break;
2539 }
2540 StrictFPModel = false;
2541 PreciseFPModel = true;
2542 // ffp-model= is a Driver option, it is entirely rewritten into more
2543 // granular options before being passed into cc1.
2544 // Use the gcc option in the switch below.
2545 if (!FPModel.empty() && !FPModel.equals(Val)) {
2546 D.Diag(clang::diag::warn_drv_overriding_flag_option)
2547 << Args.MakeArgString("-ffp-model=" + FPModel)
2548 << Args.MakeArgString("-ffp-model=" + Val);
2549 FPContract = "";
2550 }
2551 if (Val.equals("fast")) {
2552 optID = options::OPT_ffast_math;
2553 FPModel = Val;
2554 FPContract = "fast";
2555 } else if (Val.equals("precise")) {
2556 optID = options::OPT_ffp_contract;
2557 FPModel = Val;
2558 FPContract = "fast";
2559 PreciseFPModel = true;
2560 } else if (Val.equals("strict")) {
2561 StrictFPModel = true;
2562 optID = options::OPT_frounding_math;
2563 FPExceptionBehavior = "strict";
2564 FPModel = Val;
2565 TrappingMath = true;
2566 } else
2567 D.Diag(diag::err_drv_unsupported_option_argument)
2568 << A->getOption().getName() << Val;
2569 break;
2570 }
2571 }
2572
2573 switch (optID) {
2574 // If this isn't an FP option skip the claim below
2575 default: continue;
2576
2577 // Options controlling individual features
2578 case options::OPT_fhonor_infinities: HonorINFs = true; break;
2579 case options::OPT_fno_honor_infinities: HonorINFs = false; break;
2580 case options::OPT_fhonor_nans: HonorNaNs = true; break;
2581 case options::OPT_fno_honor_nans: HonorNaNs = false; break;
2582 case options::OPT_fmath_errno: MathErrno = true; break;
2583 case options::OPT_fno_math_errno: MathErrno = false; break;
2584 case options::OPT_fassociative_math: AssociativeMath = true; break;
2585 case options::OPT_fno_associative_math: AssociativeMath = false; break;
2586 case options::OPT_freciprocal_math: ReciprocalMath = true; break;
2587 case options::OPT_fno_reciprocal_math: ReciprocalMath = false; break;
2588 case options::OPT_fsigned_zeros: SignedZeros = true; break;
2589 case options::OPT_fno_signed_zeros: SignedZeros = false; break;
2590 case options::OPT_ftrapping_math:
2591 if (!TrappingMathPresent && !FPExceptionBehavior.empty() &&
2592 !FPExceptionBehavior.equals("strict"))
2593 // Warn that previous value of option is overridden.
2594 D.Diag(clang::diag::warn_drv_overriding_flag_option)
2595 << Args.MakeArgString("-ffp-exception-behavior=" + FPExceptionBehavior)
2596 << "-ftrapping-math";
2597 TrappingMath = true;
2598 TrappingMathPresent = true;
2599 FPExceptionBehavior = "strict";
2600 break;
2601 case options::OPT_fno_trapping_math:
2602 if (!TrappingMathPresent && !FPExceptionBehavior.empty() &&
2603 !FPExceptionBehavior.equals("ignore"))
2604 // Warn that previous value of option is overridden.
2605 D.Diag(clang::diag::warn_drv_overriding_flag_option)
2606 << Args.MakeArgString("-ffp-exception-behavior=" + FPExceptionBehavior)
2607 << "-fno-trapping-math";
2608 TrappingMath = false;
2609 TrappingMathPresent = true;
2610 FPExceptionBehavior = "ignore";
2611 break;
2612
2613 case options::OPT_frounding_math:
2614 RoundingFPMath = true;
2615 RoundingMathPresent = true;
2616 break;
2617
2618 case options::OPT_fno_rounding_math:
2619 RoundingFPMath = false;
2620 RoundingMathPresent = false;
2621 break;
2622
2623 case options::OPT_fdenormal_fp_math_EQ:
2624 DenormalFPMath = A->getValue();
2625 break;
2626
2627 // Validate and pass through -ffp-contract option.
2628 case options::OPT_ffp_contract: {
2629 StringRef Val = A->getValue();
2630 if (PreciseFPModel) {
2631 // -ffp-model=precise enables ffp-contract=fast as a side effect
2632 // the FPContract value has already been set to a string literal
2633 // and the Val string isn't a pertinent value.
2634 ;
2635 } else if (Val.equals("fast") || Val.equals("on") || Val.equals("off"))
2636 FPContract = Val;
2637 else
2638 D.Diag(diag::err_drv_unsupported_option_argument)
2639 << A->getOption().getName() << Val;
2640 break;
2641 }
2642
2643 // Validate and pass through -ffp-model option.
2644 case options::OPT_ffp_model_EQ:
2645 // This should only occur in the error case
2646 // since the optID has been replaced by a more granular
2647 // floating point option.
2648 break;
2649
2650 // Validate and pass through -ffp-exception-behavior option.
2651 case options::OPT_ffp_exception_behavior_EQ: {
2652 StringRef Val = A->getValue();
2653 if (!TrappingMathPresent && !FPExceptionBehavior.empty() &&
2654 !FPExceptionBehavior.equals(Val))
2655 // Warn that previous value of option is overridden.
2656 D.Diag(clang::diag::warn_drv_overriding_flag_option)
2657 << Args.MakeArgString("-ffp-exception-behavior=" + FPExceptionBehavior)
2658 << Args.MakeArgString("-ffp-exception-behavior=" + Val);
2659 TrappingMath = TrappingMathPresent = false;
2660 if (Val.equals("ignore") || Val.equals("maytrap"))
2661 FPExceptionBehavior = Val;
2662 else if (Val.equals("strict")) {
2663 FPExceptionBehavior = Val;
2664 TrappingMath = TrappingMathPresent = true;
2665 } else
2666 D.Diag(diag::err_drv_unsupported_option_argument)
2667 << A->getOption().getName() << Val;
2668 break;
2669 }
2670
2671 case options::OPT_ffinite_math_only:
2672 HonorINFs = false;
2673 HonorNaNs = false;
2674 break;
2675 case options::OPT_fno_finite_math_only:
2676 HonorINFs = true;
2677 HonorNaNs = true;
2678 break;
2679
2680 case options::OPT_funsafe_math_optimizations:
2681 AssociativeMath = true;
2682 ReciprocalMath = true;
2683 SignedZeros = false;
2684 TrappingMath = false;
2685 FPExceptionBehavior = "";
2686 break;
2687 case options::OPT_fno_unsafe_math_optimizations:
2688 AssociativeMath = false;
2689 ReciprocalMath = false;
2690 SignedZeros = true;
2691 TrappingMath = true;
2692 FPExceptionBehavior = "strict";
2693 // -fno_unsafe_math_optimizations restores default denormal handling
2694 DenormalFPMath = "";
2695 break;
2696
2697 case options::OPT_Ofast:
2698 // If -Ofast is the optimization level, then -ffast-math should be enabled
2699 if (!OFastEnabled)
2700 continue;
2701 LLVM_FALLTHROUGH;
2702 case options::OPT_ffast_math:
2703 HonorINFs = false;
2704 HonorNaNs = false;
2705 MathErrno = false;
2706 AssociativeMath = true;
2707 ReciprocalMath = true;
2708 SignedZeros = false;
2709 TrappingMath = false;
2710 RoundingFPMath = false;
2711 // If fast-math is set then set the fp-contract mode to fast.
2712 FPContract = "fast";
2713 break;
2714 case options::OPT_fno_fast_math:
2715 HonorINFs = true;
2716 HonorNaNs = true;
2717 // Turning on -ffast-math (with either flag) removes the need for
2718 // MathErrno. However, turning *off* -ffast-math merely restores the
2719 // toolchain default (which may be false).
2720 MathErrno = TC.IsMathErrnoDefault();
2721 AssociativeMath = false;
2722 ReciprocalMath = false;
2723 SignedZeros = true;
2724 TrappingMath = false;
2725 RoundingFPMath = false;
2726 // -fno_fast_math restores default denormal and fpcontract handling
2727 DenormalFPMath = "";
2728 FPContract = "";
2729 break;
2730 }
2731 if (StrictFPModel) {
2732 // If -ffp-model=strict has been specified on command line but
2733 // subsequent options conflict then emit warning diagnostic.
2734 if (HonorINFs && HonorNaNs &&
2735 !AssociativeMath && !ReciprocalMath &&
2736 SignedZeros && TrappingMath && RoundingFPMath &&
2737 DenormalFPMath.empty() && FPContract.empty())
2738 // OK: Current Arg doesn't conflict with -ffp-model=strict
2739 ;
2740 else {
2741 StrictFPModel = false;
2742 FPModel = "";
2743 D.Diag(clang::diag::warn_drv_overriding_flag_option)
2744 << "-ffp-model=strict" <<
2745 ((A->getNumValues() == 0) ? A->getSpelling()
2746 : Args.MakeArgString(A->getSpelling() + A->getValue()));
2747 }
2748 }
2749
2750 // If we handled this option claim it
2751 A->claim();
2752 }
2753
2754 if (!HonorINFs)
2755 CmdArgs.push_back("-menable-no-infs");
2756
2757 if (!HonorNaNs)
2758 CmdArgs.push_back("-menable-no-nans");
2759
2760 if (MathErrno)
2761 CmdArgs.push_back("-fmath-errno");
2762
2763 if (!MathErrno && AssociativeMath && ReciprocalMath && !SignedZeros &&
2764 !TrappingMath)
2765 CmdArgs.push_back("-menable-unsafe-fp-math");
2766
2767 if (!SignedZeros)
2768 CmdArgs.push_back("-fno-signed-zeros");
2769
2770 if (AssociativeMath && !SignedZeros && !TrappingMath)
2771 CmdArgs.push_back("-mreassociate");
2772
2773 if (ReciprocalMath)
2774 CmdArgs.push_back("-freciprocal-math");
2775
2776 if (TrappingMath) {
2777 // FP Exception Behavior is also set to strict
2778 assert(FPExceptionBehavior.equals("strict"));
2779 CmdArgs.push_back("-ftrapping-math");
2780 } else if (TrappingMathPresent)
2781 CmdArgs.push_back("-fno-trapping-math");
2782
2783 if (!DenormalFPMath.empty())
2784 CmdArgs.push_back(
2785 Args.MakeArgString("-fdenormal-fp-math=" + DenormalFPMath));
2786
2787 if (!FPContract.empty())
2788 CmdArgs.push_back(Args.MakeArgString("-ffp-contract=" + FPContract));
2789
2790 if (!RoundingFPMath)
2791 CmdArgs.push_back(Args.MakeArgString("-fno-rounding-math"));
2792
2793 if (RoundingFPMath && RoundingMathPresent)
2794 CmdArgs.push_back(Args.MakeArgString("-frounding-math"));
2795
2796 if (!FPExceptionBehavior.empty())
2797 CmdArgs.push_back(Args.MakeArgString("-ffp-exception-behavior=" +
2798 FPExceptionBehavior));
2799
2800 ParseMRecip(D, Args, CmdArgs);
2801
2802 // -ffast-math enables the __FAST_MATH__ preprocessor macro, but check for the
2803 // individual features enabled by -ffast-math instead of the option itself as
2804 // that's consistent with gcc's behaviour.
2805 if (!HonorINFs && !HonorNaNs && !MathErrno && AssociativeMath &&
2806 ReciprocalMath && !SignedZeros && !TrappingMath && !RoundingFPMath) {
2807 CmdArgs.push_back("-ffast-math");
2808 if (FPModel.equals("fast")) {
2809 if (FPContract.equals("fast"))
2810 // All set, do nothing.
2811 ;
2812 else if (FPContract.empty())
2813 // Enable -ffp-contract=fast
2814 CmdArgs.push_back(Args.MakeArgString("-ffp-contract=fast"));
2815 else
2816 D.Diag(clang::diag::warn_drv_overriding_flag_option)
2817 << "-ffp-model=fast"
2818 << Args.MakeArgString("-ffp-contract=" + FPContract);
2819 }
2820 }
2821
2822 // Handle __FINITE_MATH_ONLY__ similarly.
2823 if (!HonorINFs && !HonorNaNs)
2824 CmdArgs.push_back("-ffinite-math-only");
2825
2826 if (const Arg *A = Args.getLastArg(options::OPT_mfpmath_EQ)) {
2827 CmdArgs.push_back("-mfpmath");
2828 CmdArgs.push_back(A->getValue());
2829 }
2830
2831 // Disable a codegen optimization for floating-point casts.
2832 if (Args.hasFlag(options::OPT_fno_strict_float_cast_overflow,
2833 options::OPT_fstrict_float_cast_overflow, false))
2834 CmdArgs.push_back("-fno-strict-float-cast-overflow");
2835 }
2836
2837 static void RenderAnalyzerOptions(const ArgList &Args, ArgStringList &CmdArgs,
2838 const llvm::Triple &Triple,
2839 const InputInfo &Input) {
2840 // Enable region store model by default.
2841 CmdArgs.push_back("-analyzer-store=region");
2842
2843 // Treat blocks as analysis entry points.
2844 CmdArgs.push_back("-analyzer-opt-analyze-nested-blocks");
2845
2846 // Add default argument set.
2847 if (!Args.hasArg(options::OPT__analyzer_no_default_checks)) {
2848 CmdArgs.push_back("-analyzer-checker=core");
2849 CmdArgs.push_back("-analyzer-checker=apiModeling");
2850
2851 if (!Triple.isWindowsMSVCEnvironment()) {
2852 CmdArgs.push_back("-analyzer-checker=unix");
2853 } else {
2854 // Enable "unix" checkers that also work on Windows.
2855 CmdArgs.push_back("-analyzer-checker=unix.API");
2856 CmdArgs.push_back("-analyzer-checker=unix.Malloc");
2857 CmdArgs.push_back("-analyzer-checker=unix.MallocSizeof");
2858 CmdArgs.push_back("-analyzer-checker=unix.MismatchedDeallocator");
2859 CmdArgs.push_back("-analyzer-checker=unix.cstring.BadSizeArg");
2860 CmdArgs.push_back("-analyzer-checker=unix.cstring.NullArg");
2861 }
2862
2863 // Disable some unix checkers for PS4.
2864 if (Triple.isPS4CPU()) {
2865 CmdArgs.push_back("-analyzer-disable-checker=unix.API");
2866 CmdArgs.push_back("-analyzer-disable-checker=unix.Vfork");
2867 }
2868
2869 if (Triple.isOSDarwin()) {
2870 CmdArgs.push_back("-analyzer-checker=osx");
2871 CmdArgs.push_back(
2872 "-analyzer-checker=security.insecureAPI.decodeValueOfObjCType");
2873 }
2874 else if (Triple.isOSFuchsia())
2875 CmdArgs.push_back("-analyzer-checker=fuchsia");
2876
2877 CmdArgs.push_back("-analyzer-checker=deadcode");
2878
2879 if (types::isCXX(Input.getType()))
2880 CmdArgs.push_back("-analyzer-checker=cplusplus");
2881
2882 if (!Triple.isPS4CPU()) {
2883 CmdArgs.push_back("-analyzer-checker=security.insecureAPI.UncheckedReturn");
2884 CmdArgs.push_back("-analyzer-checker=security.insecureAPI.getpw");
2885 CmdArgs.push_back("-analyzer-checker=security.insecureAPI.gets");
2886 CmdArgs.push_back("-analyzer-checker=security.insecureAPI.mktemp");
2887 CmdArgs.push_back("-analyzer-checker=security.insecureAPI.mkstemp");
2888 CmdArgs.push_back("-analyzer-checker=security.insecureAPI.vfork");
2889 }
2890
2891 // Default nullability checks.
2892 CmdArgs.push_back("-analyzer-checker=nullability.NullPassedToNonnull");
2893 CmdArgs.push_back("-analyzer-checker=nullability.NullReturnedFromNonnull");
2894 }
2895
2896 // Set the output format. The default is plist, for (lame) historical reasons.
2897 CmdArgs.push_back("-analyzer-output");
2898 if (Arg *A = Args.getLastArg(options::OPT__analyzer_output))
2899 CmdArgs.push_back(A->getValue());
2900 else
2901 CmdArgs.push_back("plist");
2902
2903 // Disable the presentation of standard compiler warnings when using
2904 // --analyze. We only want to show static analyzer diagnostics or frontend
2905 // errors.
2906 CmdArgs.push_back("-w");
2907
2908 // Add -Xanalyzer arguments when running as analyzer.
2909 Args.AddAllArgValues(CmdArgs, options::OPT_Xanalyzer);
2910 }
2911
2912 static void RenderSSPOptions(const ToolChain &TC, const ArgList &Args,
2913 ArgStringList &CmdArgs, bool KernelOrKext) {
2914 const llvm::Triple &EffectiveTriple = TC.getEffectiveTriple();
2915
2916 // NVPTX doesn't support stack protectors; from the compiler's perspective, it
2917 // doesn't even have a stack!
2918 if (EffectiveTriple.isNVPTX())
2919 return;
2920
2921 // -stack-protector=0 is default.
2922 unsigned StackProtectorLevel = 0;
2923 unsigned DefaultStackProtectorLevel =
2924 TC.GetDefaultStackProtectorLevel(KernelOrKext);
2925
2926 if (Arg *A = Args.getLastArg(options::OPT_fno_stack_protector,
2927 options::OPT_fstack_protector_all,
2928 options::OPT_fstack_protector_strong,
2929 options::OPT_fstack_protector)) {
2930 if (A->getOption().matches(options::OPT_fstack_protector))
2931 StackProtectorLevel =
2932 std::max<unsigned>(LangOptions::SSPOn, DefaultStackProtectorLevel);
2933 else if (A->getOption().matches(options::OPT_fstack_protector_strong))
2934 StackProtectorLevel = LangOptions::SSPStrong;
2935 else if (A->getOption().matches(options::OPT_fstack_protector_all))
2936 StackProtectorLevel = LangOptions::SSPReq;
2937 } else {
2938 StackProtectorLevel = DefaultStackProtectorLevel;
2939 }
2940
2941 if (StackProtectorLevel) {
2942 CmdArgs.push_back("-stack-protector");
2943 CmdArgs.push_back(Args.MakeArgString(Twine(StackProtectorLevel)));
2944 }
2945
2946 // --param ssp-buffer-size=
2947 for (const Arg *A : Args.filtered(options::OPT__param)) {
2948 StringRef Str(A->getValue());
2949 if (Str.startswith("ssp-buffer-size=")) {
2950 if (StackProtectorLevel) {
2951 CmdArgs.push_back("-stack-protector-buffer-size");
2952 // FIXME: Verify the argument is a valid integer.
2953 CmdArgs.push_back(Args.MakeArgString(Str.drop_front(16)));
2954 }
2955 A->claim();
2956 }
2957 }
2958 }
2959
2960 static void RenderTrivialAutoVarInitOptions(const Driver &D,
2961 const ToolChain &TC,
2962 const ArgList &Args,
2963 ArgStringList &CmdArgs) {
2964 auto DefaultTrivialAutoVarInit = TC.GetDefaultTrivialAutoVarInit();
2965 StringRef TrivialAutoVarInit = "";
2966
2967 for (const Arg *A : Args) {
2968 switch (A->getOption().getID()) {
2969 default:
2970 continue;
2971 case options::OPT_ftrivial_auto_var_init: {
2972 A->claim();
2973 StringRef Val = A->getValue();
2974 if (Val == "uninitialized" || Val == "zero" || Val == "pattern")
2975 TrivialAutoVarInit = Val;
2976 else
2977 D.Diag(diag::err_drv_unsupported_option_argument)
2978 << A->getOption().getName() << Val;
2979 break;
2980 }
2981 }
2982 }
2983
2984 if (TrivialAutoVarInit.empty())
2985 switch (DefaultTrivialAutoVarInit) {
2986 case LangOptions::TrivialAutoVarInitKind::Uninitialized:
2987 break;
2988 case LangOptions::TrivialAutoVarInitKind::Pattern:
2989 TrivialAutoVarInit = "pattern";
2990 break;
2991 case LangOptions::TrivialAutoVarInitKind::Zero:
2992 TrivialAutoVarInit = "zero";
2993 break;
2994 }
2995
2996 if (!TrivialAutoVarInit.empty()) {
2997 if (TrivialAutoVarInit == "zero" && !Args.hasArg(options::OPT_enable_trivial_var_init_zero))
2998 D.Diag(diag::err_drv_trivial_auto_var_init_zero_disabled);
2999 CmdArgs.push_back(
3000 Args.MakeArgString("-ftrivial-auto-var-init=" + TrivialAutoVarInit));
3001 }
3002 }
3003
3004 static void RenderOpenCLOptions(const ArgList &Args, ArgStringList &CmdArgs) {
3005 const unsigned ForwardedArguments[] = {
3006 options::OPT_cl_opt_disable,
3007 options::OPT_cl_strict_aliasing,
3008 options::OPT_cl_single_precision_constant,
3009 options::OPT_cl_finite_math_only,
3010 options::OPT_cl_kernel_arg_info,
3011 options::OPT_cl_unsafe_math_optimizations,
3012 options::OPT_cl_fast_relaxed_math,
3013 options::OPT_cl_mad_enable,
3014 options::OPT_cl_no_signed_zeros,
3015 options::OPT_cl_denorms_are_zero,
3016 options::OPT_cl_fp32_correctly_rounded_divide_sqrt,
3017 options::OPT_cl_uniform_work_group_size
3018 };
3019
3020 if (Arg *A = Args.getLastArg(options::OPT_cl_std_EQ)) {
3021 std::string CLStdStr = std::string("-cl-std=") + A->getValue();
3022 CmdArgs.push_back(Args.MakeArgString(CLStdStr));
3023 }
3024
3025 for (const auto &Arg : ForwardedArguments)
3026 if (const auto *A = Args.getLastArg(Arg))
3027 CmdArgs.push_back(Args.MakeArgString(A->getOption().getPrefixedName()));
3028 }
3029
3030 static void RenderARCMigrateToolOptions(const Driver &D, const ArgList &Args,
3031 ArgStringList &CmdArgs) {
3032 bool ARCMTEnabled = false;
3033 if (!Args.hasArg(options::OPT_fno_objc_arc, options::OPT_fobjc_arc)) {
3034 if (const Arg *A = Args.getLastArg(options::OPT_ccc_arcmt_check,
3035 options::OPT_ccc_arcmt_modify,
3036 options::OPT_ccc_arcmt_migrate)) {
3037 ARCMTEnabled = true;
3038 switch (A->getOption().getID()) {
3039 default: llvm_unreachable("missed a case");
3040 case options::OPT_ccc_arcmt_check:
3041 CmdArgs.push_back("-arcmt-check");
3042 break;
3043 case options::OPT_ccc_arcmt_modify:
3044 CmdArgs.push_back("-arcmt-modify");
3045 break;
3046 case options::OPT_ccc_arcmt_migrate:
3047 CmdArgs.push_back("-arcmt-migrate");
3048 CmdArgs.push_back("-mt-migrate-directory");
3049 CmdArgs.push_back(A->getValue());
3050
3051 Args.AddLastArg(CmdArgs, options::OPT_arcmt_migrate_report_output);
3052 Args.AddLastArg(CmdArgs, options::OPT_arcmt_migrate_emit_arc_errors);
3053 break;
3054 }
3055 }
3056 } else {
3057 Args.ClaimAllArgs(options::OPT_ccc_arcmt_check);
3058 Args.ClaimAllArgs(options::OPT_ccc_arcmt_modify);
3059 Args.ClaimAllArgs(options::OPT_ccc_arcmt_migrate);
3060 }
3061
3062 if (const Arg *A = Args.getLastArg(options::OPT_ccc_objcmt_migrate)) {
3063 if (ARCMTEnabled)
3064 D.Diag(diag::err_drv_argument_not_allowed_with)
3065 << A->getAsString(Args) << "-ccc-arcmt-migrate";
3066
3067 CmdArgs.push_back("-mt-migrate-directory");
3068 CmdArgs.push_back(A->getValue());
3069
3070 if (!Args.hasArg(options::OPT_objcmt_migrate_literals,
3071 options::OPT_objcmt_migrate_subscripting,
3072 options::OPT_objcmt_migrate_property)) {
3073 // None specified, means enable them all.
3074 CmdArgs.push_back("-objcmt-migrate-literals");
3075 CmdArgs.push_back("-objcmt-migrate-subscripting");
3076 CmdArgs.push_back("-objcmt-migrate-property");
3077 } else {
3078 Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_literals);
3079 Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_subscripting);
3080 Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property);
3081 }
3082 } else {
3083 Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_literals);
3084 Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_subscripting);
3085 Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property);
3086 Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_all);
3087 Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_readonly_property);
3088 Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_readwrite_property);
3089 Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property_dot_syntax);
3090 Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_annotation);
3091 Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_instancetype);
3092 Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_nsmacros);
3093 Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_protocol_conformance);
3094 Args.AddLastArg(CmdArgs, options::OPT_objcmt_atomic_property);
3095 Args.AddLastArg(CmdArgs, options::OPT_objcmt_returns_innerpointer_property);
3096 Args.AddLastArg(CmdArgs, options::OPT_objcmt_ns_nonatomic_iosonly);
3097 Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_designated_init);
3098 Args.AddLastArg(CmdArgs, options::OPT_objcmt_whitelist_dir_path);
3099 }
3100 }
3101
3102 static void RenderBuiltinOptions(const ToolChain &TC, const llvm::Triple &T,
3103 const ArgList &Args, ArgStringList &CmdArgs) {
3104 // -fbuiltin is default unless -mkernel is used.
3105 bool UseBuiltins =
3106 Args.hasFlag(options::OPT_fbuiltin, options::OPT_fno_builtin,
3107 !Args.hasArg(options::OPT_mkernel));
3108 if (!UseBuiltins)
3109 CmdArgs.push_back("-fno-builtin");
3110
3111 // -ffreestanding implies -fno-builtin.
3112 if (Args.hasArg(options::OPT_ffreestanding))
3113 UseBuiltins = false;
3114
3115 // Process the -fno-builtin-* options.
3116 for (const auto &Arg : Args) {
3117 const Option &O = Arg->getOption();
3118 if (!O.matches(options::OPT_fno_builtin_))
3119 continue;
3120
3121 Arg->claim();
3122
3123 // If -fno-builtin is specified, then there's no need to pass the option to
3124 // the frontend.
3125 if (!UseBuiltins)
3126 continue;
3127
3128 StringRef FuncName = Arg->getValue();
3129 CmdArgs.push_back(Args.MakeArgString("-fno-builtin-" + FuncName));
3130 }
3131
3132 // le32-specific flags:
3133 // -fno-math-builtin: clang should not convert math builtins to intrinsics
3134 // by default.
3135 if (TC.getArch() == llvm::Triple::le32)
3136 CmdArgs.push_back("-fno-math-builtin");
3137 }
3138
3139 void Driver::getDefaultModuleCachePath(SmallVectorImpl<char> &Result) {
3140 llvm::sys::path::system_temp_directory(/*erasedOnReboot=*/false, Result);
3141 llvm::sys::path::append(Result, "org.llvm.clang.");
3142 appendUserToPath(Result);
3143 llvm::sys::path::append(Result, "ModuleCache");
3144 }
3145
3146 static void RenderModulesOptions(Compilation &C, const Driver &D,
3147 const ArgList &Args, const InputInfo &Input,
3148 const InputInfo &Output,
3149 ArgStringList &CmdArgs, bool &HaveModules) {
3150 // -fmodules enables the use of precompiled modules (off by default).
3151 // Users can pass -fno-cxx-modules to turn off modules support for
3152 // C++/Objective-C++ programs.
3153 bool HaveClangModules = false;
3154 if (Args.hasFlag(options::OPT_fmodules, options::OPT_fno_modules, false)) {
3155 bool AllowedInCXX = Args.hasFlag(options::OPT_fcxx_modules,
3156 options::OPT_fno_cxx_modules, true);
3157 if (AllowedInCXX || !types::isCXX(Input.getType())) {
3158 CmdArgs.push_back("-fmodules");
3159 HaveClangModules = true;
3160 }
3161 }
3162
3163 HaveModules |= HaveClangModules;
3164 if (Args.hasArg(options::OPT_fmodules_ts)) {
3165 CmdArgs.push_back("-fmodules-ts");
3166 HaveModules = true;
3167 }
3168
3169 // -fmodule-maps enables implicit reading of module map files. By default,
3170 // this is enabled if we are using Clang's flavor of precompiled modules.
3171 if (Args.hasFlag(options::OPT_fimplicit_module_maps,
3172 options::OPT_fno_implicit_module_maps, HaveClangModules))
3173 CmdArgs.push_back("-fimplicit-module-maps");
3174
3175 // -fmodules-decluse checks that modules used are declared so (off by default)
3176 if (Args.hasFlag(options::OPT_fmodules_decluse,
3177 options::OPT_fno_modules_decluse, false))
3178 CmdArgs.push_back("-fmodules-decluse");
3179
3180 // -fmodules-strict-decluse is like -fmodule-decluse, but also checks that
3181 // all #included headers are part of modules.
3182 if (Args.hasFlag(options::OPT_fmodules_strict_decluse,
3183 options::OPT_fno_modules_strict_decluse, false))
3184 CmdArgs.push_back("-fmodules-strict-decluse");
3185
3186 // -fno-implicit-modules turns off implicitly compiling modules on demand.
3187 bool ImplicitModules = false;
3188 if (!Args.hasFlag(options::OPT_fimplicit_modules,
3189 options::OPT_fno_implicit_modules, HaveClangModules)) {
3190 if (HaveModules)
3191 CmdArgs.push_back("-fno-implicit-modules");
3192 } else if (HaveModules) {
3193 ImplicitModules = true;
3194 // -fmodule-cache-path specifies where our implicitly-built module files
3195 // should be written.
3196 SmallString<128> Path;
3197 if (Arg *A = Args.getLastArg(options::OPT_fmodules_cache_path))
3198 Path = A->getValue();
3199
3200 if (C.isForDiagnostics()) {
3201 // When generating crash reports, we want to emit the modules along with
3202 // the reproduction sources, so we ignore any provided module path.
3203 Path = Output.getFilename();
3204 llvm::sys::path::replace_extension(Path, ".cache");
3205 llvm::sys::path::append(Path, "modules");
3206 } else if (Path.empty()) {
3207 // No module path was provided: use the default.
3208 Driver::getDefaultModuleCachePath(Path);
3209 }
3210
3211 const char Arg[] = "-fmodules-cache-path=";
3212 Path.insert(Path.begin(), Arg, Arg + strlen(Arg));
3213 CmdArgs.push_back(Args.MakeArgString(Path));
3214 }
3215
3216 if (HaveModules) {
3217 // -fprebuilt-module-path specifies where to load the prebuilt module files.
3218 for (const Arg *A : Args.filtered(options::OPT_fprebuilt_module_path)) {
3219 CmdArgs.push_back(Args.MakeArgString(
3220 std::string("-fprebuilt-module-path=") + A->getValue()));
3221 A->claim();
3222 }
3223 if (Args.hasFlag(options::OPT_fmodules_validate_input_files_content,
3224 options::OPT_fno_modules_validate_input_files_content,
3225 false))
3226 CmdArgs.push_back("-fvalidate-ast-input-files-content");
3227 }
3228
3229 // -fmodule-name specifies the module that is currently being built (or
3230 // used for header checking by -fmodule-maps).
3231 Args.AddLastArg(CmdArgs, options::OPT_fmodule_name_EQ);
3232
3233 // -fmodule-map-file can be used to specify files containing module
3234 // definitions.
3235 Args.AddAllArgs(CmdArgs, options::OPT_fmodule_map_file);
3236
3237 // -fbuiltin-module-map can be used to load the clang
3238 // builtin headers modulemap file.
3239 if (Args.hasArg(options::OPT_fbuiltin_module_map)) {
3240 SmallString<128> BuiltinModuleMap(D.ResourceDir);
3241 llvm::sys::path::append(BuiltinModuleMap, "include");
3242 llvm::sys::path::append(BuiltinModuleMap, "module.modulemap");
3243 if (llvm::sys::fs::exists(BuiltinModuleMap))
3244 CmdArgs.push_back(
3245 Args.MakeArgString("-fmodule-map-file=" + BuiltinModuleMap));
3246 }
3247
3248 // The -fmodule-file=<name>=<file> form specifies the mapping of module
3249 // names to precompiled module files (the module is loaded only if used).
3250 // The -fmodule-file=<file> form can be used to unconditionally load
3251 // precompiled module files (whether used or not).
3252 if (HaveModules)
3253 Args.AddAllArgs(CmdArgs, options::OPT_fmodule_file);
3254 else
3255 Args.ClaimAllArgs(options::OPT_fmodule_file);
3256
3257 // When building modules and generating crashdumps, we need to dump a module
3258 // dependency VFS alongside the output.
3259 if (HaveClangModules && C.isForDiagnostics()) {
3260 SmallString<128> VFSDir(Output.getFilename());
3261 llvm::sys::path::replace_extension(VFSDir, ".cache");
3262 // Add the cache directory as a temp so the crash diagnostics pick it up.
3263 C.addTempFile(Args.MakeArgString(VFSDir));
3264
3265 llvm::sys::path::append(VFSDir, "vfs");
3266 CmdArgs.push_back("-module-dependency-dir");
3267 CmdArgs.push_back(Args.MakeArgString(VFSDir));
3268 }
3269
3270 if (HaveClangModules)
3271 Args.AddLastArg(CmdArgs, options::OPT_fmodules_user_build_path);
3272
3273 // Pass through all -fmodules-ignore-macro arguments.
3274 Args.AddAllArgs(CmdArgs, options::OPT_fmodules_ignore_macro);
3275 Args.AddLastArg(CmdArgs, options::OPT_fmodules_prune_interval);
3276 Args.AddLastArg(CmdArgs, options::OPT_fmodules_prune_after);
3277
3278 Args.AddLastArg(CmdArgs, options::OPT_fbuild_session_timestamp);
3279
3280 if (Arg *A = Args.getLastArg(options::OPT_fbuild_session_file)) {
3281 if (Args.hasArg(options::OPT_fbuild_session_timestamp))
3282 D.Diag(diag::err_drv_argument_not_allowed_with)
3283 << A->getAsString(Args) << "-fbuild-session-timestamp";
3284
3285 llvm::sys::fs::file_status Status;
3286 if (llvm::sys::fs::status(A->getValue(), Status))
3287 D.Diag(diag::err_drv_no_such_file) << A->getValue();
3288 CmdArgs.push_back(
3289 Args.MakeArgString("-fbuild-session-timestamp=" +
3290 Twine((uint64_t)Status.getLastModificationTime()
3291 .time_since_epoch()
3292 .count())));
3293 }
3294
3295 if (Args.getLastArg(options::OPT_fmodules_validate_once_per_build_session)) {
3296 if (!Args.getLastArg(options::OPT_fbuild_session_timestamp,
3297 options::OPT_fbuild_session_file))
3298 D.Diag(diag::err_drv_modules_validate_once_requires_timestamp);
3299
3300 Args.AddLastArg(CmdArgs,
3301 options::OPT_fmodules_validate_once_per_build_session);
3302 }
3303
3304 if (Args.hasFlag(options::OPT_fmodules_validate_system_headers,
3305 options::OPT_fno_modules_validate_system_headers,
3306 ImplicitModules))
3307 CmdArgs.push_back("-fmodules-validate-system-headers");
3308
3309 Args.AddLastArg(CmdArgs, options::OPT_fmodules_disable_diagnostic_validation);
3310 }
3311
3312 static void RenderCharacterOptions(const ArgList &Args, const llvm::Triple &T,
3313 ArgStringList &CmdArgs) {
3314 // -fsigned-char is default.
3315 if (const Arg *A = Args.getLastArg(options::OPT_fsigned_char,
3316 options::OPT_fno_signed_char,
3317 options::OPT_funsigned_char,
3318 options::OPT_fno_unsigned_char)) {
3319 if (A->getOption().matches(options::OPT_funsigned_char) ||
3320 A->getOption().matches(options::OPT_fno_signed_char)) {
3321 CmdArgs.push_back("-fno-signed-char");
3322 }
3323 } else if (!isSignedCharDefault(T)) {
3324 CmdArgs.push_back("-fno-signed-char");
3325 }
3326
3327 // The default depends on the language standard.
3328 Args.AddLastArg(CmdArgs, options::OPT_fchar8__t, options::OPT_fno_char8__t);
3329
3330 if (const Arg *A = Args.getLastArg(options::OPT_fshort_wchar,
3331 options::OPT_fno_short_wchar)) {
3332 if (A->getOption().matches(options::OPT_fshort_wchar)) {
3333 CmdArgs.push_back("-fwchar-type=short");
3334 CmdArgs.push_back("-fno-signed-wchar");
3335 } else {
3336 bool IsARM = T.isARM() || T.isThumb() || T.isAArch64();
3337 CmdArgs.push_back("-fwchar-type=int");
3338 if (IsARM && !(T.isOSWindows() || T.isOSNetBSD() ||
3339 T.isOSOpenBSD()))
3340 CmdArgs.push_back("-fno-signed-wchar");
3341 else
3342 CmdArgs.push_back("-fsigned-wchar");
3343 }
3344 }
3345 }
3346
3347 static void RenderObjCOptions(const ToolChain &TC, const Driver &D,
3348 const llvm::Triple &T, const ArgList &Args,
3349 ObjCRuntime &Runtime, bool InferCovariantReturns,
3350 const InputInfo &Input, ArgStringList &CmdArgs) {
3351 const llvm::Triple::ArchType Arch = TC.getArch();
3352
3353 // -fobjc-dispatch-method is only relevant with the nonfragile-abi, and legacy
3354 // is the default. Except for deployment target of 10.5, next runtime is
3355 // always legacy dispatch and -fno-objc-legacy-dispatch gets ignored silently.
3356 if (Runtime.isNonFragile()) {
3357 if (!Args.hasFlag(options::OPT_fobjc_legacy_dispatch,
3358 options::OPT_fno_objc_legacy_dispatch,
3359 Runtime.isLegacyDispatchDefaultForArch(Arch))) {
3360 if (TC.UseObjCMixedDispatch())
3361 CmdArgs.push_back("-fobjc-dispatch-method=mixed");
3362 else
3363 CmdArgs.push_back("-fobjc-dispatch-method=non-legacy");
3364 }
3365 }
3366
3367 // When ObjectiveC legacy runtime is in effect on MacOSX, turn on the option
3368 // to do Array/Dictionary subscripting by default.
3369 if (Arch == llvm::Triple::x86 && T.isMacOSX() &&
3370 Runtime.getKind() == ObjCRuntime::FragileMacOSX && Runtime.isNeXTFamily())
3371 CmdArgs.push_back("-fobjc-subscripting-legacy-runtime");
3372
3373 // Allow -fno-objc-arr to trump -fobjc-arr/-fobjc-arc.
3374 // NOTE: This logic is duplicated in ToolChains.cpp.
3375 if (isObjCAutoRefCount(Args)) {
3376 TC.CheckObjCARC();
3377
3378 CmdArgs.push_back("-fobjc-arc");
3379
3380 // FIXME: It seems like this entire block, and several around it should be
3381 // wrapped in isObjC, but for now we just use it here as this is where it
3382 // was being used previously.
3383 if (types::isCXX(Input.getType()) && types::isObjC(Input.getType())) {
3384 if (TC.GetCXXStdlibType(Args) == ToolChain::CST_Libcxx)
3385 CmdArgs.push_back("-fobjc-arc-cxxlib=libc++");
3386 else
3387 CmdArgs.push_back("-fobjc-arc-cxxlib=libstdc++");
3388 }
3389
3390 // Allow the user to enable full exceptions code emission.
3391 // We default off for Objective-C, on for Objective-C++.
3392 if (Args.hasFlag(options::OPT_fobjc_arc_exceptions,
3393 options::OPT_fno_objc_arc_exceptions,
3394 /*Default=*/types::isCXX(Input.getType())))
3395 CmdArgs.push_back("-fobjc-arc-exceptions");
3396 }
3397
3398 // Silence warning for full exception code emission options when explicitly
3399 // set to use no ARC.
3400 if (Args.hasArg(options::OPT_fno_objc_arc)) {
3401 Args.ClaimAllArgs(options::OPT_fobjc_arc_exceptions);
3402 Args.ClaimAllArgs(options::OPT_fno_objc_arc_exceptions);
3403 }
3404
3405 // Allow the user to control whether messages can be converted to runtime
3406 // functions.
3407 if (types::isObjC(Input.getType())) {
3408 auto *Arg = Args.getLastArg(
3409 options::OPT_fobjc_convert_messages_to_runtime_calls,
3410 options::OPT_fno_objc_convert_messages_to_runtime_calls);
3411 if (Arg &&
3412 Arg->getOption().matches(
3413 options::OPT_fno_objc_convert_messages_to_runtime_calls))
3414 CmdArgs.push_back("-fno-objc-convert-messages-to-runtime-calls");
3415 }
3416
3417 // -fobjc-infer-related-result-type is the default, except in the Objective-C
3418 // rewriter.
3419 if (InferCovariantReturns)
3420 CmdArgs.push_back("-fno-objc-infer-related-result-type");
3421
3422 // Pass down -fobjc-weak or -fno-objc-weak if present.
3423 if (types::isObjC(Input.getType())) {
3424 auto WeakArg =
3425 Args.getLastArg(options::OPT_fobjc_weak, options::OPT_fno_objc_weak);
3426 if (!WeakArg) {
3427 // nothing to do
3428 } else if (!Runtime.allowsWeak()) {
3429 if (WeakArg->getOption().matches(options::OPT_fobjc_weak))
3430 D.Diag(diag::err_objc_weak_unsupported);
3431 } else {
3432 WeakArg->render(Args, CmdArgs);
3433 }
3434 }
3435 }
3436
3437 static void RenderDiagnosticsOptions(const Driver &D, const ArgList &Args,
3438 ArgStringList &CmdArgs) {
3439 bool CaretDefault = true;
3440 bool ColumnDefault = true;
3441
3442 if (const Arg *A = Args.getLastArg(options::OPT__SLASH_diagnostics_classic,
3443 options::OPT__SLASH_diagnostics_column,
3444 options::OPT__SLASH_diagnostics_caret)) {
3445 switch (A->getOption().getID()) {
3446 case options::OPT__SLASH_diagnostics_caret:
3447 CaretDefault = true;
3448 ColumnDefault = true;
3449 break;
3450 case options::OPT__SLASH_diagnostics_column:
3451 CaretDefault = false;
3452 ColumnDefault = true;
3453 break;
3454 case options::OPT__SLASH_diagnostics_classic:
3455 CaretDefault = false;
3456 ColumnDefault = false;
3457 break;
3458 }
3459 }
3460
3461 // -fcaret-diagnostics is default.
3462 if (!Args.hasFlag(options::OPT_fcaret_diagnostics,
3463 options::OPT_fno_caret_diagnostics, CaretDefault))
3464 CmdArgs.push_back("-fno-caret-diagnostics");
3465
3466 // -fdiagnostics-fixit-info is default, only pass non-default.
3467 if (!Args.hasFlag(options::OPT_fdiagnostics_fixit_info,
3468 options::OPT_fno_diagnostics_fixit_info))
3469 CmdArgs.push_back("-fno-diagnostics-fixit-info");
3470
3471 // Enable -fdiagnostics-show-option by default.
3472 if (Args.hasFlag(options::OPT_fdiagnostics_show_option,
3473 options::OPT_fno_diagnostics_show_option))
3474 CmdArgs.push_back("-fdiagnostics-show-option");
3475
3476 if (const Arg *A =
3477 Args.getLastArg(options::OPT_fdiagnostics_show_category_EQ)) {
3478 CmdArgs.push_back("-fdiagnostics-show-category");
3479 CmdArgs.push_back(A->getValue());
3480 }
3481
3482 if (Args.hasFlag(options::OPT_fdiagnostics_show_hotness,
3483 options::OPT_fno_diagnostics_show_hotness, false))
3484 CmdArgs.push_back("-fdiagnostics-show-hotness");
3485
3486 if (const Arg *A =
3487 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) {
3488 std::string Opt =
3489 std::string("-fdiagnostics-hotness-threshold=") + A->getValue();
3490 CmdArgs.push_back(Args.MakeArgString(Opt));
3491 }
3492
3493 if (const Arg *A = Args.getLastArg(options::OPT_fdiagnostics_format_EQ)) {
3494 CmdArgs.push_back("-fdiagnostics-format");
3495 CmdArgs.push_back(A->getValue());
3496 }
3497
3498 if (const Arg *A = Args.getLastArg(
3499 options::OPT_fdiagnostics_show_note_include_stack,
3500 options::OPT_fno_diagnostics_show_note_include_stack)) {
3501 const Option &O = A->getOption();
3502 if (O.matches(options::OPT_fdiagnostics_show_note_include_stack))
3503 CmdArgs.push_back("-fdiagnostics-show-note-include-stack");
3504 else
3505 CmdArgs.push_back("-fno-diagnostics-show-note-include-stack");
3506 }
3507
3508 // Color diagnostics are parsed by the driver directly from argv and later
3509 // re-parsed to construct this job; claim any possible color diagnostic here
3510 // to avoid warn_drv_unused_argument and diagnose bad
3511 // OPT_fdiagnostics_color_EQ values.
3512 for (const Arg *A : Args) {
3513 const Option &O = A->getOption();
3514 if (!O.matches(options::OPT_fcolor_diagnostics) &&
3515 !O.matches(options::OPT_fdiagnostics_color) &&
3516 !O.matches(options::OPT_fno_color_diagnostics) &&
3517 !O.matches(options::OPT_fno_diagnostics_color) &&
3518 !O.matches(options::OPT_fdiagnostics_color_EQ))
3519 continue;
3520
3521 if (O.matches(options::OPT_fdiagnostics_color_EQ)) {
3522 StringRef Value(A->getValue());
3523 if (Value != "always" && Value != "never" && Value != "auto")
3524 D.Diag(diag::err_drv_clang_unsupported)
3525 << ("-fdiagnostics-color=" + Value).str();
3526 }
3527 A->claim();
3528 }
3529
3530 if (D.getDiags().getDiagnosticOptions().ShowColors)
3531 CmdArgs.push_back("-fcolor-diagnostics");
3532
3533 if (Args.hasArg(options::OPT_fansi_escape_codes))
3534 CmdArgs.push_back("-fansi-escape-codes");
3535
3536 if (!Args.hasFlag(options::OPT_fshow_source_location,
3537 options::OPT_fno_show_source_location))
3538 CmdArgs.push_back("-fno-show-source-location");
3539
3540 if (Args.hasArg(options::OPT_fdiagnostics_absolute_paths))
3541 CmdArgs.push_back("-fdiagnostics-absolute-paths");
3542
3543 if (!Args.hasFlag(options::OPT_fshow_column, options::OPT_fno_show_column,
3544 ColumnDefault))
3545 CmdArgs.push_back("-fno-show-column");
3546
3547 if (!Args.hasFlag(options::OPT_fspell_checking,
3548 options::OPT_fno_spell_checking))
3549 CmdArgs.push_back("-fno-spell-checking");
3550 }
3551
3552 enum class DwarfFissionKind { None, Split, Single };
3553
3554 static DwarfFissionKind getDebugFissionKind(const Driver &D,
3555 const ArgList &Args, Arg *&Arg) {
3556 Arg =
3557 Args.getLastArg(options::OPT_gsplit_dwarf, options::OPT_gsplit_dwarf_EQ);
3558 if (!Arg)
3559 return DwarfFissionKind::None;
3560
3561 if (Arg->getOption().matches(options::OPT_gsplit_dwarf))
3562 return DwarfFissionKind::Split;
3563
3564 StringRef Value = Arg->getValue();
3565 if (Value == "split")
3566 return DwarfFissionKind::Split;
3567 if (Value == "single")
3568 return DwarfFissionKind::Single;
3569
3570 D.Diag(diag::err_drv_unsupported_option_argument)
3571 << Arg->getOption().getName() << Arg->getValue();
3572 return DwarfFissionKind::None;
3573 }
3574
3575 static void RenderDebugOptions(const ToolChain &TC, const Driver &D,
3576 const llvm::Triple &T, const ArgList &Args,
3577 bool EmitCodeView, bool IsWindowsMSVC,
3578 ArgStringList &CmdArgs,
3579 codegenoptions::DebugInfoKind &DebugInfoKind,
3580 DwarfFissionKind &DwarfFission) {
3581 if (Args.hasFlag(options::OPT_fdebug_info_for_profiling,
3582 options::OPT_fno_debug_info_for_profiling, false) &&
3583 checkDebugInfoOption(
3584 Args.getLastArg(options::OPT_fdebug_info_for_profiling), Args, D, TC))
3585 CmdArgs.push_back("-fdebug-info-for-profiling");
3586
3587 // The 'g' groups options involve a somewhat intricate sequence of decisions
3588 // about what to pass from the driver to the frontend, but by the time they
3589 // reach cc1 they've been factored into three well-defined orthogonal choices:
3590 // * what level of debug info to generate
3591 // * what dwarf version to write
3592 // * what debugger tuning to use
3593 // This avoids having to monkey around further in cc1 other than to disable
3594 // codeview if not running in a Windows environment. Perhaps even that
3595 // decision should be made in the driver as well though.
3596 llvm::DebuggerKind DebuggerTuning = TC.getDefaultDebuggerTuning();
3597
3598 bool SplitDWARFInlining =
3599 Args.hasFlag(options::OPT_fsplit_dwarf_inlining,
3600 options::OPT_fno_split_dwarf_inlining, false);
3601
3602 Args.ClaimAllArgs(options::OPT_g_Group);
3603
3604 Arg* SplitDWARFArg;
3605 DwarfFission = getDebugFissionKind(D, Args, SplitDWARFArg);
3606
3607 if (DwarfFission != DwarfFissionKind::None &&
3608 !checkDebugInfoOption(SplitDWARFArg, Args, D, TC)) {
3609 DwarfFission = DwarfFissionKind::None;
3610 SplitDWARFInlining = false;
3611 }
3612
3613 if (const Arg *A =
3614 Args.getLastArg(options::OPT_g_Group, options::OPT_gsplit_dwarf,
3615 options::OPT_gsplit_dwarf_EQ)) {
3616 DebugInfoKind = codegenoptions::LimitedDebugInfo;
3617
3618 // If the last option explicitly specified a debug-info level, use it.
3619 if (checkDebugInfoOption(A, Args, D, TC) &&
3620 A->getOption().matches(options::OPT_gN_Group)) {
3621 DebugInfoKind = DebugLevelToInfoKind(*A);
3622 // For -g0 or -gline-tables-only, drop -gsplit-dwarf. This gets a bit more
3623 // complicated if you've disabled inline info in the skeleton CUs
3624 // (SplitDWARFInlining) - then there's value in composing split-dwarf and
3625 // line-tables-only, so let those compose naturally in that case.
3626 if (DebugInfoKind == codegenoptions::NoDebugInfo ||
3627 DebugInfoKind == codegenoptions::DebugDirectivesOnly ||
3628 (DebugInfoKind == codegenoptions::DebugLineTablesOnly &&
3629 SplitDWARFInlining))
3630 DwarfFission = DwarfFissionKind::None;
3631 }
3632 }
3633
3634 // If a debugger tuning argument appeared, remember it.
3635 if (const Arg *A =
3636 Args.getLastArg(options::OPT_gTune_Group, options::OPT_ggdbN_Group)) {
3637 if (checkDebugInfoOption(A, Args, D, TC)) {
3638 if (A->getOption().matches(options::OPT_glldb))
3639 DebuggerTuning = llvm::DebuggerKind::LLDB;
3640 else if (A->getOption().matches(options::OPT_gsce))
3641 DebuggerTuning = llvm::DebuggerKind::SCE;
3642 else
3643 DebuggerTuning = llvm::DebuggerKind::GDB;
3644 }
3645 }
3646
3647 // If a -gdwarf argument appeared, remember it.
3648 const Arg *GDwarfN = Args.getLastArg(
3649 options::OPT_gdwarf_2, options::OPT_gdwarf_3, options::OPT_gdwarf_4,
3650 options::OPT_gdwarf_5, options::OPT_gdwarf);
3651 bool EmitDwarf = false;
3652 if (GDwarfN) {
3653 if (checkDebugInfoOption(GDwarfN, Args, D, TC))
3654 EmitDwarf = true;
3655 else
3656 GDwarfN = nullptr;
3657 }
3658
3659 if (const Arg *A = Args.getLastArg(options::OPT_gcodeview)) {
3660 if (checkDebugInfoOption(A, Args, D, TC))
3661 EmitCodeView = true;
3662 }
3663
3664 // If the user asked for debug info but did not explicitly specify -gcodeview
3665 // or -gdwarf, ask the toolchain for the default format.
3666 if (!EmitCodeView && !EmitDwarf &&
3667 DebugInfoKind != codegenoptions::NoDebugInfo) {
3668 switch (TC.getDefaultDebugFormat()) {
3669 case codegenoptions::DIF_CodeView:
3670 EmitCodeView = true;
3671 break;
3672 case codegenoptions::DIF_DWARF:
3673 EmitDwarf = true;
3674 break;
3675 }
3676 }
3677
3678 unsigned DWARFVersion = 0;
3679 unsigned DefaultDWARFVersion = ParseDebugDefaultVersion(TC, Args);
3680 if (EmitDwarf) {
3681 // Start with the platform default DWARF version
3682 DWARFVersion = TC.GetDefaultDwarfVersion();
3683 assert(DWARFVersion && "toolchain default DWARF version must be nonzero");
3684
3685 // If the user specified a default DWARF version, that takes precedence
3686 // over the platform default.
3687 if (DefaultDWARFVersion)
3688 DWARFVersion = DefaultDWARFVersion;
3689
3690 // Override with a user-specified DWARF version
3691 if (GDwarfN)
3692 if (auto ExplicitVersion = DwarfVersionNum(GDwarfN->getSpelling()))
3693 DWARFVersion = ExplicitVersion;
3694 }
3695
3696 // -gline-directives-only supported only for the DWARF debug info.
3697 if (DWARFVersion == 0 && DebugInfoKind == codegenoptions::DebugDirectivesOnly)
3698 DebugInfoKind = codegenoptions::NoDebugInfo;
3699
3700 // We ignore flag -gstrict-dwarf for now.
3701 // And we handle flag -grecord-gcc-switches later with DWARFDebugFlags.
3702 Args.ClaimAllArgs(options::OPT_g_flags_Group);
3703
3704 // Column info is included by default for everything except SCE and
3705 // CodeView. Clang doesn't track end columns, just starting columns, which,
3706 // in theory, is fine for CodeView (and PDB). In practice, however, the
3707 // Microsoft debuggers don't handle missing end columns well, so it's better
3708 // not to include any column info.
3709 if (const Arg *A = Args.getLastArg(options::OPT_gcolumn_info))
3710 (void)checkDebugInfoOption(A, Args, D, TC);
3711 if (Args.hasFlag(options::OPT_gcolumn_info, options::OPT_gno_column_info,
3712 /*Default=*/!EmitCodeView &&
3713 DebuggerTuning != llvm::DebuggerKind::SCE))
3714 CmdArgs.push_back("-dwarf-column-info");
3715
3716 // FIXME: Move backend command line options to the module.
3717 // If -gline-tables-only or -gline-directives-only is the last option it wins.
3718 if (const Arg *A = Args.getLastArg(options::OPT_gmodules))
3719 if (checkDebugInfoOption(A, Args, D, TC)) {
3720 if (DebugInfoKind != codegenoptions::DebugLineTablesOnly &&
3721 DebugInfoKind != codegenoptions::DebugDirectivesOnly) {
3722 DebugInfoKind = codegenoptions::LimitedDebugInfo;
3723 CmdArgs.push_back("-dwarf-ext-refs");
3724 CmdArgs.push_back("-fmodule-format=obj");
3725 }
3726 }
3727
3728 if (T.isOSBinFormatELF() && !SplitDWARFInlining)
3729 CmdArgs.push_back("-fno-split-dwarf-inlining");
3730
3731 // After we've dealt with all combinations of things that could
3732 // make DebugInfoKind be other than None or DebugLineTablesOnly,
3733 // figure out if we need to "upgrade" it to standalone debug info.
3734 // We parse these two '-f' options whether or not they will be used,
3735 // to claim them even if you wrote "-fstandalone-debug -gline-tables-only"
3736 bool NeedFullDebug = Args.hasFlag(
3737 options::OPT_fstandalone_debug, options::OPT_fno_standalone_debug,
3738 DebuggerTuning == llvm::DebuggerKind::LLDB ||
3739 TC.GetDefaultStandaloneDebug());
3740 if (const Arg *A = Args.getLastArg(options::OPT_fstandalone_debug))
3741 (void)checkDebugInfoOption(A, Args, D, TC);
3742 if (DebugInfoKind == codegenoptions::LimitedDebugInfo && NeedFullDebug)
3743 DebugInfoKind = codegenoptions::FullDebugInfo;
3744
3745 if (Args.hasFlag(options::OPT_gembed_source, options::OPT_gno_embed_source,
3746 false)) {
3747 // Source embedding is a vendor extension to DWARF v5. By now we have
3748 // checked if a DWARF version was stated explicitly, and have otherwise
3749 // fallen back to the target default, so if this is still not at least 5
3750 // we emit an error.
3751 const Arg *A = Args.getLastArg(options::OPT_gembed_source);
3752 if (DWARFVersion < 5)
3753 D.Diag(diag::err_drv_argument_only_allowed_with)
3754 << A->getAsString(Args) << "-gdwarf-5";
3755 else if (checkDebugInfoOption(A, Args, D, TC))
3756 CmdArgs.push_back("-gembed-source");
3757 }
3758
3759 if (EmitCodeView) {
3760 CmdArgs.push_back("-gcodeview");
3761
3762 // Emit codeview type hashes if requested.
3763 if (Args.hasFlag(options::OPT_gcodeview_ghash,
3764 options::OPT_gno_codeview_ghash, false)) {
3765 CmdArgs.push_back("-gcodeview-ghash");
3766 }
3767 }
3768
3769 // Omit inline line tables if requested.
3770 if (Args.hasFlag(options::OPT_gno_inline_line_tables,
3771 options::OPT_ginline_line_tables, false)) {
3772 CmdArgs.push_back("-gno-inline-line-tables");
3773 }
3774
3775 // Adjust the debug info kind for the given toolchain.
3776 TC.adjustDebugInfoKind(DebugInfoKind, Args);
3777
3778 // When emitting remarks, we need at least debug lines in the output.
3779 if (willEmitRemarks(Args) &&
3780 DebugInfoKind <= codegenoptions::DebugDirectivesOnly)
3781 DebugInfoKind = codegenoptions::DebugLineTablesOnly;
3782
3783 RenderDebugEnablingArgs(Args, CmdArgs, DebugInfoKind, DWARFVersion,
3784 DebuggerTuning);
3785
3786 // -fdebug-macro turns on macro debug info generation.
3787 if (Args.hasFlag(options::OPT_fdebug_macro, options::OPT_fno_debug_macro,
3788 false))
3789 if (checkDebugInfoOption(Args.getLastArg(options::OPT_fdebug_macro), Args,
3790 D, TC))
3791 CmdArgs.push_back("-debug-info-macro");
3792
3793 // -ggnu-pubnames turns on gnu style pubnames in the backend.
3794 const auto *PubnamesArg =
3795 Args.getLastArg(options::OPT_ggnu_pubnames, options::OPT_gno_gnu_pubnames,
3796 options::OPT_gpubnames, options::OPT_gno_pubnames);
3797 if (DwarfFission != DwarfFissionKind::None ||
3798 (PubnamesArg && checkDebugInfoOption(PubnamesArg, Args, D, TC)))
3799 if (!PubnamesArg ||
3800 (!PubnamesArg->getOption().matches(options::OPT_gno_gnu_pubnames) &&
3801 !PubnamesArg->getOption().matches(options::OPT_gno_pubnames)))
3802 CmdArgs.push_back(PubnamesArg && PubnamesArg->getOption().matches(
3803 options::OPT_gpubnames)
3804 ? "-gpubnames"
3805 : "-ggnu-pubnames");
3806
3807 if (Args.hasFlag(options::OPT_fdebug_ranges_base_address,
3808 options::OPT_fno_debug_ranges_base_address, false)) {
3809 CmdArgs.push_back("-fdebug-ranges-base-address");
3810 }
3811
3812 // -gdwarf-aranges turns on the emission of the aranges section in the
3813 // backend.
3814 // Always enabled for SCE tuning.
3815 bool NeedAranges = DebuggerTuning == llvm::DebuggerKind::SCE;
3816 if (const Arg *A = Args.getLastArg(options::OPT_gdwarf_aranges))
3817 NeedAranges = checkDebugInfoOption(A, Args, D, TC) || NeedAranges;
3818 if (NeedAranges) {
3819 CmdArgs.push_back("-mllvm");
3820 CmdArgs.push_back("-generate-arange-section");
3821 }
3822
3823 if (Args.hasFlag(options::OPT_fforce_dwarf_frame,
3824 options::OPT_fno_force_dwarf_frame, false))
3825 CmdArgs.push_back("-fforce-dwarf-frame");
3826
3827 if (Args.hasFlag(options::OPT_fdebug_types_section,
3828 options::OPT_fno_debug_types_section, false)) {
3829 if (!T.isOSBinFormatELF()) {
3830 D.Diag(diag::err_drv_unsupported_opt_for_target)
3831 << Args.getLastArg(options::OPT_fdebug_types_section)
3832 ->getAsString(Args)
3833 << T.getTriple();
3834 } else if (checkDebugInfoOption(
3835 Args.getLastArg(options::OPT_fdebug_types_section), Args, D,
3836 TC)) {
3837 CmdArgs.push_back("-mllvm");
3838 CmdArgs.push_back("-generate-type-units");
3839 }
3840 }
3841
3842 // Decide how to render forward declarations of template instantiations.
3843 // SCE wants full descriptions, others just get them in the name.
3844 if (DebuggerTuning == llvm::DebuggerKind::SCE)
3845 CmdArgs.push_back("-debug-forward-template-params");
3846
3847 // Do we need to explicitly import anonymous namespaces into the parent
3848 // scope?
3849 if (DebuggerTuning == llvm::DebuggerKind::SCE)
3850 CmdArgs.push_back("-dwarf-explicit-import");
3851
3852 RenderDebugInfoCompressionArgs(Args, CmdArgs, D, TC);
3853 }
3854
3855 void Clang::ConstructJob(Compilation &C, const JobAction &JA,
3856 const InputInfo &Output, const InputInfoList &Inputs,
3857 const ArgList &Args, const char *LinkingOutput) const {
3858 const auto &TC = getToolChain();
3859 const llvm::Triple &RawTriple = TC.getTriple();
3860 const llvm::Triple &Triple = TC.getEffectiveTriple();
3861 const std::string &TripleStr = Triple.getTriple();
3862
3863 bool KernelOrKext =
3864 Args.hasArg(options::OPT_mkernel, options::OPT_fapple_kext);
3865 const Driver &D = TC.getDriver();
3866 ArgStringList CmdArgs;
3867
3868 // Check number of inputs for sanity. We need at least one input.
3869 assert(Inputs.size() >= 1 && "Must have at least one input.");
3870 // CUDA/HIP compilation may have multiple inputs (source file + results of
3871 // device-side compilations). OpenMP device jobs also take the host IR as a
3872 // second input. Module precompilation accepts a list of header files to
3873 // include as part of the module. All other jobs are expected to have exactly
3874 // one input.
3875 bool IsCuda = JA.isOffloading(Action::OFK_Cuda);
3876 bool IsHIP = JA.isOffloading(Action::OFK_HIP);
3877 bool IsOpenMPDevice = JA.isDeviceOffloading(Action::OFK_OpenMP);
3878 bool IsHeaderModulePrecompile = isa<HeaderModulePrecompileJobAction>(JA);
3879
3880 // A header module compilation doesn't have a main input file, so invent a
3881 // fake one as a placeholder.
3882 const char *ModuleName = [&]{
3883 auto *ModuleNameArg = Args.getLastArg(options::OPT_fmodule_name_EQ);
3884 return ModuleNameArg ? ModuleNameArg->getValue() : "";
3885 }();
3886 InputInfo HeaderModuleInput(Inputs[0].getType(), ModuleName, ModuleName);
3887
3888 const InputInfo &Input =
3889 IsHeaderModulePrecompile ? HeaderModuleInput : Inputs[0];
3890
3891 InputInfoList ModuleHeaderInputs;
3892 const InputInfo *CudaDeviceInput = nullptr;
3893 const InputInfo *OpenMPDeviceInput = nullptr;
3894 for (const InputInfo &I : Inputs) {
3895 if (&I == &Input) {
3896 // This is the primary input.
3897 } else if (IsHeaderModulePrecompile &&
3898 types::getPrecompiledType(I.getType()) == types::TY_PCH) {
3899 types::ID Expected = HeaderModuleInput.getType();
3900 if (I.getType() != Expected) {
3901 D.Diag(diag::err_drv_module_header_wrong_kind)
3902 << I.getFilename() << types::getTypeName(I.getType())
3903 << types::getTypeName(Expected);
3904 }
3905 ModuleHeaderInputs.push_back(I);
3906 } else if ((IsCuda || IsHIP) && !CudaDeviceInput) {
3907 CudaDeviceInput = &I;
3908 } else if (IsOpenMPDevice && !OpenMPDeviceInput) {
3909 OpenMPDeviceInput = &I;
3910 } else {
3911 llvm_unreachable("unexpectedly given multiple inputs");
3912 }
3913 }
3914
3915 const llvm::Triple *AuxTriple = IsCuda ? TC.getAuxTriple() : nullptr;
3916 bool IsWindowsMSVC = RawTriple.isWindowsMSVCEnvironment();
3917 bool IsIAMCU = RawTriple.isOSIAMCU();
3918
3919 // Adjust IsWindowsXYZ for CUDA/HIP compilations. Even when compiling in
3920 // device mode (i.e., getToolchain().getTriple() is NVPTX/AMDGCN, not
3921 // Windows), we need to pass Windows-specific flags to cc1.
3922 if (IsCuda || IsHIP)
3923 IsWindowsMSVC |= AuxTriple && AuxTriple->isWindowsMSVCEnvironment();
3924
3925 // C++ is not supported for IAMCU.
3926 if (IsIAMCU && types::isCXX(Input.getType()))
3927 D.Diag(diag::err_drv_clang_unsupported) << "C++ for IAMCU";
3928
3929 // Invoke ourselves in -cc1 mode.
3930 //
3931 // FIXME: Implement custom jobs for internal actions.
3932 CmdArgs.push_back("-cc1");
3933
3934 // Add the "effective" target triple.
3935 CmdArgs.push_back("-triple");
3936 CmdArgs.push_back(Args.MakeArgString(TripleStr));
3937
3938 if (const Arg *MJ = Args.getLastArg(options::OPT_MJ)) {
3939 DumpCompilationDatabase(C, MJ->getValue(), TripleStr, Output, Input, Args);
3940 Args.ClaimAllArgs(options::OPT_MJ);
3941 } else if (const Arg *GenCDBFragment =
3942 Args.getLastArg(options::OPT_gen_cdb_fragment_path)) {
3943 DumpCompilationDatabaseFragmentToDir(GenCDBFragment->getValue(), C,
3944 TripleStr, Output, Input, Args);
3945 Args.ClaimAllArgs(options::OPT_gen_cdb_fragment_path);
3946 }
3947
3948 if (IsCuda || IsHIP) {
3949 // We have to pass the triple of the host if compiling for a CUDA/HIP device
3950 // and vice-versa.
3951 std::string NormalizedTriple;
3952 if (JA.isDeviceOffloading(Action::OFK_Cuda) ||
3953 JA.isDeviceOffloading(Action::OFK_HIP))
3954 NormalizedTriple = C.getSingleOffloadToolChain<Action::OFK_Host>()
3955 ->getTriple()
3956 .normalize();
3957 else {
3958 // Host-side compilation.
3959 NormalizedTriple =
3960 (IsCuda ? C.getSingleOffloadToolChain<Action::OFK_Cuda>()
3961 : C.getSingleOffloadToolChain<Action::OFK_HIP>())
3962 ->getTriple()
3963 .normalize();
3964 if (IsCuda) {
3965 // We need to figure out which CUDA version we're compiling for, as that
3966 // determines how we load and launch GPU kernels.
3967 auto *CTC = static_cast<const toolchains::CudaToolChain *>(
3968 C.getSingleOffloadToolChain<Action::OFK_Cuda>());
3969 assert(CTC && "Expected valid CUDA Toolchain.");
3970 if (CTC && CTC->CudaInstallation.version() != CudaVersion::UNKNOWN)
3971 CmdArgs.push_back(Args.MakeArgString(
3972 Twine("-target-sdk-version=") +
3973 CudaVersionToString(CTC->CudaInstallation.version())));
3974 }
3975 }
3976 CmdArgs.push_back("-aux-triple");
3977 CmdArgs.push_back(Args.MakeArgString(NormalizedTriple));
3978 }
3979
3980 if (IsOpenMPDevice) {
3981 // We have to pass the triple of the host if compiling for an OpenMP device.
3982 std::string NormalizedTriple =
3983 C.getSingleOffloadToolChain<Action::OFK_Host>()
3984 ->getTriple()
3985 .normalize();
3986 CmdArgs.push_back("-aux-triple");
3987 CmdArgs.push_back(Args.MakeArgString(NormalizedTriple));
3988 }
3989
3990 if (Triple.isOSWindows() && (Triple.getArch() == llvm::Triple::arm ||
3991 Triple.getArch() == llvm::Triple::thumb)) {
3992 unsigned Offset = Triple.getArch() == llvm::Triple::arm ? 4 : 6;
3993 unsigned Version;
3994 Triple.getArchName().substr(Offset).getAsInteger(10, Version);
3995 if (Version < 7)
3996 D.Diag(diag::err_target_unsupported_arch) << Triple.getArchName()
3997 << TripleStr;
3998 }
3999
4000 // Push all default warning arguments that are specific to
4001 // the given target. These come before user provided warning options
4002 // are provided.
4003 TC.addClangWarningOptions(CmdArgs);
4004
4005 // Select the appropriate action.
4006 RewriteKind rewriteKind = RK_None;
4007
4008 // If CollectArgsForIntegratedAssembler() isn't called below, claim the args
4009 // it claims when not running an assembler. Otherwise, clang would emit
4010 // "argument unused" warnings for assembler flags when e.g. adding "-E" to
4011 // flags while debugging something. That'd be somewhat inconvenient, and it's
4012 // also inconsistent with most other flags -- we don't warn on
4013 // -ffunction-sections not being used in -E mode either for example, even
4014 // though it's not really used either.
4015 if (!isa<AssembleJobAction>(JA)) {
4016 // The args claimed here should match the args used in
4017 // CollectArgsForIntegratedAssembler().
4018 if (TC.useIntegratedAs()) {
4019 Args.ClaimAllArgs(options::OPT_mrelax_all);
4020 Args.ClaimAllArgs(options::OPT_mno_relax_all);
4021 Args.ClaimAllArgs(options::OPT_mincremental_linker_compatible);
4022 Args.ClaimAllArgs(options::OPT_mno_incremental_linker_compatible);
4023 switch (C.getDefaultToolChain().getArch()) {
4024 case llvm::Triple::arm:
4025 case llvm::Triple::armeb:
4026 case llvm::Triple::thumb:
4027 case llvm::Triple::thumbeb:
4028 Args.ClaimAllArgs(options::OPT_mimplicit_it_EQ);
4029 break;
4030 default:
4031 break;
4032 }
4033 }
4034 Args.ClaimAllArgs(options::OPT_Wa_COMMA);
4035 Args.ClaimAllArgs(options::OPT_Xassembler);
4036 }
4037
4038 if (isa<AnalyzeJobAction>(JA)) {
4039 assert(JA.getType() == types::TY_Plist && "Invalid output type.");
4040 CmdArgs.push_back("-analyze");
4041 } else if (isa<MigrateJobAction>(JA)) {
4042 CmdArgs.push_back("-migrate");
4043 } else if (isa<PreprocessJobAction>(JA)) {
4044 if (Output.getType() == types::TY_Dependencies)
4045 CmdArgs.push_back("-Eonly");
4046 else {
4047 CmdArgs.push_back("-E");
4048 if (Args.hasArg(options::OPT_rewrite_objc) &&
4049 !Args.hasArg(options::OPT_g_Group))
4050 CmdArgs.push_back("-P");
4051 }
4052 } else if (isa<AssembleJobAction>(JA)) {
4053 CmdArgs.push_back("-emit-obj");
4054
4055 CollectArgsForIntegratedAssembler(C, Args, CmdArgs, D);
4056
4057 // Also ignore explicit -force_cpusubtype_ALL option.
4058 (void)Args.hasArg(options::OPT_force__cpusubtype__ALL);
4059 } else if (isa<PrecompileJobAction>(JA)) {
4060 if (JA.getType() == types::TY_Nothing)
4061 CmdArgs.push_back("-fsyntax-only");
4062 else if (JA.getType() == types::TY_ModuleFile)
4063 CmdArgs.push_back(IsHeaderModulePrecompile
4064 ? "-emit-header-module"
4065 : "-emit-module-interface");
4066 else
4067 CmdArgs.push_back("-emit-pch");
4068 } else if (isa<VerifyPCHJobAction>(JA)) {
4069 CmdArgs.push_back("-verify-pch");
4070 } else {
4071 assert((isa<CompileJobAction>(JA) || isa<BackendJobAction>(JA)) &&
4072 "Invalid action for clang tool.");
4073 if (JA.getType() == types::TY_Nothing) {
4074 CmdArgs.push_back("-fsyntax-only");
4075 } else if (JA.getType() == types::TY_LLVM_IR ||
4076 JA.getType() == types::TY_LTO_IR) {
4077 CmdArgs.push_back("-emit-llvm");
4078 } else if (JA.getType() == types::TY_LLVM_BC ||
4079 JA.getType() == types::TY_LTO_BC) {
4080 CmdArgs.push_back("-emit-llvm-bc");
4081 } else if (JA.getType() == types::TY_IFS ||
4082 JA.getType() == types::TY_IFS_CPP) {
4083 StringRef ArgStr =
4084 Args.hasArg(options::OPT_interface_stub_version_EQ)
4085 ? Args.getLastArgValue(options::OPT_interface_stub_version_EQ)
4086 : "experimental-ifs-v1";
4087 CmdArgs.push_back("-emit-interface-stubs");
4088 CmdArgs.push_back(
4089 Args.MakeArgString(Twine("-interface-stub-version=") + ArgStr.str()));
4090 } else if (JA.getType() == types::TY_PP_Asm) {
4091 CmdArgs.push_back("-S");
4092 } else if (JA.getType() == types::TY_AST) {
4093 CmdArgs.push_back("-emit-pch");
4094 } else if (JA.getType() == types::TY_ModuleFile) {
4095 CmdArgs.push_back("-module-file-info");
4096 } else if (JA.getType() == types::TY_RewrittenObjC) {
4097 CmdArgs.push_back("-rewrite-objc");
4098 rewriteKind = RK_NonFragile;
4099 } else if (JA.getType() == types::TY_RewrittenLegacyObjC) {
4100 CmdArgs.push_back("-rewrite-objc");
4101 rewriteKind = RK_Fragile;
4102 } else {
4103 assert(JA.getType() == types::TY_PP_Asm && "Unexpected output type!");
4104 }
4105
4106 // Preserve use-list order by default when emitting bitcode, so that
4107 // loading the bitcode up in 'opt' or 'llc' and running passes gives the
4108 // same result as running passes here. For LTO, we don't need to preserve
4109 // the use-list order, since serialization to bitcode is part of the flow.
4110 if (JA.getType() == types::TY_LLVM_BC)
4111 CmdArgs.push_back("-emit-llvm-uselists");
4112
4113 // Device-side jobs do not support LTO.
4114 bool isDeviceOffloadAction = !(JA.isDeviceOffloading(Action::OFK_None) ||
4115 JA.isDeviceOffloading(Action::OFK_Host));
4116
4117 if (D.isUsingLTO() && !isDeviceOffloadAction) {
4118 Args.AddLastArg(CmdArgs, options::OPT_flto, options::OPT_flto_EQ);
4119 CmdArgs.push_back("-flto-unit");
4120 }
4121 }
4122
4123 if (const Arg *A = Args.getLastArg(options::OPT_fthinlto_index_EQ)) {
4124 if (!types::isLLVMIR(Input.getType()))
4125 D.Diag(diag::err_drv_arg_requires_bitcode_input) << A->getAsString(Args);
4126 Args.AddLastArg(CmdArgs, options::OPT_fthinlto_index_EQ);
4127 }
4128
4129 if (Args.getLastArg(options::OPT_fthin_link_bitcode_EQ))
4130 Args.AddLastArg(CmdArgs, options::OPT_fthin_link_bitcode_EQ);
4131
4132 if (Args.getLastArg(options::OPT_save_temps_EQ))
4133 Args.AddLastArg(CmdArgs, options::OPT_save_temps_EQ);
4134
4135 // Embed-bitcode option.
4136 // Only white-listed flags below are allowed to be embedded.
4137 if (C.getDriver().embedBitcodeInObject() && !C.getDriver().isUsingLTO() &&
4138 (isa<BackendJobAction>(JA) || isa<AssembleJobAction>(JA))) {
4139 // Add flags implied by -fembed-bitcode.
4140 Args.AddLastArg(CmdArgs, options::OPT_fembed_bitcode_EQ);
4141 // Disable all llvm IR level optimizations.
4142 CmdArgs.push_back("-disable-llvm-passes");
4143
4144 // Render target options.
4145 TC.addClangTargetOptions(Args, CmdArgs, JA.getOffloadingDeviceKind());
4146
4147 // reject options that shouldn't be supported in bitcode
4148 // also reject kernel/kext
4149 static const constexpr unsigned kBitcodeOptionBlacklist[] = {
4150 options::OPT_mkernel,
4151 options::OPT_fapple_kext,
4152 options::OPT_ffunction_sections,
4153 options::OPT_fno_function_sections,
4154 options::OPT_fdata_sections,
4155 options::OPT_fno_data_sections,
4156 options::OPT_funique_section_names,
4157 options::OPT_fno_unique_section_names,
4158 options::OPT_mrestrict_it,
4159 options::OPT_mno_restrict_it,
4160 options::OPT_mstackrealign,
4161 options::OPT_mno_stackrealign,
4162 options::OPT_mstack_alignment,
4163 options::OPT_mcmodel_EQ,
4164 options::OPT_mlong_calls,
4165 options::OPT_mno_long_calls,
4166 options::OPT_ggnu_pubnames,
4167 options::OPT_gdwarf_aranges,
4168 options::OPT_fdebug_types_section,
4169 options::OPT_fno_debug_types_section,
4170 options::OPT_fdwarf_directory_asm,
4171 options::OPT_fno_dwarf_directory_asm,
4172 options::OPT_mrelax_all,
4173 options::OPT_mno_relax_all,
4174 options::OPT_ftrap_function_EQ,
4175 options::OPT_ffixed_r9,
4176 options::OPT_mfix_cortex_a53_835769,
4177 options::OPT_mno_fix_cortex_a53_835769,
4178 options::OPT_ffixed_x18,
4179 options::OPT_mglobal_merge,
4180 options::OPT_mno_global_merge,
4181 options::OPT_mred_zone,
4182 options::OPT_mno_red_zone,
4183 options::OPT_Wa_COMMA,
4184 options::OPT_Xassembler,
4185 options::OPT_mllvm,
4186 };
4187 for (const auto &A : Args)
4188 if (llvm::find(kBitcodeOptionBlacklist, A->getOption().getID()) !=
4189 std::end(kBitcodeOptionBlacklist))
4190 D.Diag(diag::err_drv_unsupported_embed_bitcode) << A->getSpelling();
4191
4192 // Render the CodeGen options that need to be passed.
4193 if (!Args.hasFlag(options::OPT_foptimize_sibling_calls,
4194 options::OPT_fno_optimize_sibling_calls))
4195 CmdArgs.push_back("-mdisable-tail-calls");
4196
4197 RenderFloatingPointOptions(TC, D, isOptimizationLevelFast(Args), Args,
4198 CmdArgs);
4199
4200 // Render ABI arguments
4201 switch (TC.getArch()) {
4202 default: break;
4203 case llvm::Triple::arm:
4204 case llvm::Triple::armeb:
4205 case llvm::Triple::thumbeb:
4206 RenderARMABI(Triple, Args, CmdArgs);
4207 break;
4208 case llvm::Triple::aarch64:
4209 case llvm::Triple::aarch64_32:
4210 case llvm::Triple::aarch64_be:
4211 RenderAArch64ABI(Triple, Args, CmdArgs);
4212 break;
4213 }
4214
4215 // Optimization level for CodeGen.
4216 if (const Arg *A = Args.getLastArg(options::OPT_O_Group)) {
4217 if (A->getOption().matches(options::OPT_O4)) {
4218 CmdArgs.push_back("-O3");
4219 D.Diag(diag::warn_O4_is_O3);
4220 } else {
4221 A->render(Args, CmdArgs);
4222 }
4223 }
4224
4225 // Input/Output file.
4226 if (Output.getType() == types::TY_Dependencies) {
4227 // Handled with other dependency code.
4228 } else if (Output.isFilename()) {
4229 CmdArgs.push_back("-o");
4230 CmdArgs.push_back(Output.getFilename());
4231 } else {
4232 assert(Output.isNothing() && "Input output.");
4233 }
4234
4235 for (const auto &II : Inputs) {
4236 addDashXForInput(Args, II, CmdArgs);
4237 if (II.isFilename())
4238 CmdArgs.push_back(II.getFilename());
4239 else
4240 II.getInputArg().renderAsInput(Args, CmdArgs);
4241 }
4242
4243 C.addCommand(std::make_unique<Command>(JA, *this, D.getClangProgramPath(),
4244 CmdArgs, Inputs));
4245 return;
4246 }
4247
4248 if (C.getDriver().embedBitcodeMarkerOnly() && !C.getDriver().isUsingLTO())
4249 CmdArgs.push_back("-fembed-bitcode=marker");
4250
4251 // We normally speed up the clang process a bit by skipping destructors at
4252 // exit, but when we're generating diagnostics we can rely on some of the
4253 // cleanup.
4254 if (!C.isForDiagnostics())
4255 CmdArgs.push_back("-disable-free");
4256
4257 #ifdef NDEBUG
4258 const bool IsAssertBuild = false;
4259 #else
4260 const bool IsAssertBuild = true;
4261 #endif
4262
4263 // Disable the verification pass in -asserts builds.
4264 if (!IsAssertBuild)
4265 CmdArgs.push_back("-disable-llvm-verifier");
4266
4267 // Discard value names in assert builds unless otherwise specified.
4268 if (Args.hasFlag(options::OPT_fdiscard_value_names,
4269 options::OPT_fno_discard_value_names, !IsAssertBuild))
4270 CmdArgs.push_back("-discard-value-names");
4271
4272 // Set the main file name, so that debug info works even with
4273 // -save-temps.
4274 CmdArgs.push_back("-main-file-name");
4275 CmdArgs.push_back(getBaseInputName(Args, Input));
4276
4277 // Some flags which affect the language (via preprocessor
4278 // defines).
4279 if (Args.hasArg(options::OPT_static))
4280 CmdArgs.push_back("-static-define");
4281
4282 if (Args.hasArg(options::OPT_municode))
4283 CmdArgs.push_back("-DUNICODE");
4284
4285 if (isa<AnalyzeJobAction>(JA))
4286 RenderAnalyzerOptions(Args, CmdArgs, Triple, Input);
4287
4288 if (isa<AnalyzeJobAction>(JA) ||
4289 (isa<PreprocessJobAction>(JA) && Args.hasArg(options::OPT__analyze)))
4290 CmdArgs.push_back("-setup-static-analyzer");
4291
4292 // Enable compatilibily mode to avoid analyzer-config related errors.
4293 // Since we can't access frontend flags through hasArg, let's manually iterate
4294 // through them.
4295 bool FoundAnalyzerConfig = false;
4296 for (auto Arg : Args.filtered(options::OPT_Xclang))
4297 if (StringRef(Arg->getValue()) == "-analyzer-config") {
4298 FoundAnalyzerConfig = true;
4299 break;
4300 }
4301 if (!FoundAnalyzerConfig)
4302 for (auto Arg : Args.filtered(options::OPT_Xanalyzer))
4303 if (StringRef(Arg->getValue()) == "-analyzer-config") {
4304 FoundAnalyzerConfig = true;
4305 break;
4306 }
4307 if (FoundAnalyzerConfig)
4308 CmdArgs.push_back("-analyzer-config-compatibility-mode=true");
4309
4310 CheckCodeGenerationOptions(D, Args);
4311
4312 unsigned FunctionAlignment = ParseFunctionAlignment(TC, Args);
4313 assert(FunctionAlignment <= 31 && "function alignment will be truncated!");
4314 if (FunctionAlignment) {
4315 CmdArgs.push_back("-function-alignment");
4316 CmdArgs.push_back(Args.MakeArgString(std::to_string(FunctionAlignment)));
4317 }
4318
4319 llvm::Reloc::Model RelocationModel;
4320 unsigned PICLevel;
4321 bool IsPIE;
4322 std::tie(RelocationModel, PICLevel, IsPIE) = ParsePICArgs(TC, Args);
4323
4324 const char *RMName = RelocationModelName(RelocationModel);
4325
4326 if ((RelocationModel == llvm::Reloc::ROPI ||
4327 RelocationModel == llvm::Reloc::ROPI_RWPI) &&
4328 types::isCXX(Input.getType()) &&
4329 !Args.hasArg(options::OPT_fallow_unsupported))
4330 D.Diag(diag::err_drv_ropi_incompatible_with_cxx);
4331
4332 if (RMName) {
4333 CmdArgs.push_back("-mrelocation-model");
4334 CmdArgs.push_back(RMName);
4335 }
4336 if (PICLevel > 0) {
4337 CmdArgs.push_back("-pic-level");
4338 CmdArgs.push_back(PICLevel == 1 ? "1" : "2");
4339 if (IsPIE)
4340 CmdArgs.push_back("-pic-is-pie");
4341 }
4342
4343 if (RelocationModel == llvm::Reloc::ROPI ||
4344 RelocationModel == llvm::Reloc::ROPI_RWPI)
4345 CmdArgs.push_back("-fropi");
4346 if (RelocationModel == llvm::Reloc::RWPI ||
4347 RelocationModel == llvm::Reloc::ROPI_RWPI)
4348 CmdArgs.push_back("-frwpi");
4349
4350 if (Arg *A = Args.getLastArg(options::OPT_meabi)) {
4351 CmdArgs.push_back("-meabi");
4352 CmdArgs.push_back(A->getValue());
4353 }
4354
4355 CmdArgs.push_back("-mthread-model");
4356 if (Arg *A = Args.getLastArg(options::OPT_mthread_model)) {
4357 if (!TC.isThreadModelSupported(A->getValue()))
4358 D.Diag(diag::err_drv_invalid_thread_model_for_target)
4359 << A->getValue() << A->getAsString(Args);
4360 CmdArgs.push_back(A->getValue());
4361 }
4362 else
4363 CmdArgs.push_back(Args.MakeArgString(TC.getThreadModel()));
4364
4365 Args.AddLastArg(CmdArgs, options::OPT_fveclib);
4366
4367 if (Args.hasFlag(options::OPT_fmerge_all_constants,
4368 options::OPT_fno_merge_all_constants, false))
4369 CmdArgs.push_back("-fmerge-all-constants");
4370
4371 if (Args.hasFlag(options::OPT_fno_delete_null_pointer_checks,
4372 options::OPT_fdelete_null_pointer_checks, false))
4373 CmdArgs.push_back("-fno-delete-null-pointer-checks");
4374
4375 // LLVM Code Generator Options.
4376
4377 if (Args.hasArg(options::OPT_frewrite_map_file) ||
4378 Args.hasArg(options::OPT_frewrite_map_file_EQ)) {
4379 for (const Arg *A : Args.filtered(options::OPT_frewrite_map_file,
4380 options::OPT_frewrite_map_file_EQ)) {
4381 StringRef Map = A->getValue();
4382 if (!llvm::sys::fs::exists(Map)) {
4383 D.Diag(diag::err_drv_no_such_file) << Map;
4384 } else {
4385 CmdArgs.push_back("-frewrite-map-file");
4386 CmdArgs.push_back(A->getValue());
4387 A->claim();
4388 }
4389 }
4390 }
4391
4392 if (Arg *A = Args.getLastArg(options::OPT_Wframe_larger_than_EQ)) {
4393 StringRef v = A->getValue();
4394 CmdArgs.push_back("-mllvm");
4395 CmdArgs.push_back(Args.MakeArgString("-warn-stack-size=" + v));
4396 A->claim();
4397 }
4398
4399 if (!Args.hasFlag(options::OPT_fjump_tables, options::OPT_fno_jump_tables,
4400 true))
4401 CmdArgs.push_back("-fno-jump-tables");
4402
4403 if (Args.hasFlag(options::OPT_fprofile_sample_accurate,
4404 options::OPT_fno_profile_sample_accurate, false))
4405 CmdArgs.push_back("-fprofile-sample-accurate");
4406
4407 if (!Args.hasFlag(options::OPT_fpreserve_as_comments,
4408 options::OPT_fno_preserve_as_comments, true))
4409 CmdArgs.push_back("-fno-preserve-as-comments");
4410
4411 if (Arg *A = Args.getLastArg(options::OPT_mregparm_EQ)) {
4412 CmdArgs.push_back("-mregparm");
4413 CmdArgs.push_back(A->getValue());
4414 }
4415
4416 if (Arg *A = Args.getLastArg(options::OPT_fpcc_struct_return,
4417 options::OPT_freg_struct_return)) {
4418 if (TC.getArch() != llvm::Triple::x86) {
4419 D.Diag(diag::err_drv_unsupported_opt_for_target)
4420 << A->getSpelling() << RawTriple.str();
4421 } else if (A->getOption().matches(options::OPT_fpcc_struct_return)) {
4422 CmdArgs.push_back("-fpcc-struct-return");
4423 } else {
4424 assert(A->getOption().matches(options::OPT_freg_struct_return));
4425 CmdArgs.push_back("-freg-struct-return");
4426 }
4427 }
4428
4429 if (Args.hasFlag(options::OPT_mrtd, options::OPT_mno_rtd, false))
4430 CmdArgs.push_back("-fdefault-calling-conv=stdcall");
4431
4432 CodeGenOptions::FramePointerKind FPKeepKind =
4433 getFramePointerKind(Args, RawTriple);
4434 const char *FPKeepKindStr = nullptr;
4435 switch (FPKeepKind) {
4436 case CodeGenOptions::FramePointerKind::None:
4437 FPKeepKindStr = "-mframe-pointer=none";
4438 break;
4439 case CodeGenOptions::FramePointerKind::NonLeaf:
4440 FPKeepKindStr = "-mframe-pointer=non-leaf";
4441 break;
4442 case CodeGenOptions::FramePointerKind::All:
4443 FPKeepKindStr = "-mframe-pointer=all";
4444 break;
4445 }
4446 assert(FPKeepKindStr && "unknown FramePointerKind");
4447 CmdArgs.push_back(FPKeepKindStr);
4448
4449 if (!Args.hasFlag(options::OPT_fzero_initialized_in_bss,
4450 options::OPT_fno_zero_initialized_in_bss))
4451 CmdArgs.push_back("-mno-zero-initialized-in-bss");
4452
4453 bool OFastEnabled = isOptimizationLevelFast(Args);
4454 // If -Ofast is the optimization level, then -fstrict-aliasing should be
4455 // enabled. This alias option is being used to simplify the hasFlag logic.
4456 OptSpecifier StrictAliasingAliasOption =
4457 OFastEnabled ? options::OPT_Ofast : options::OPT_fstrict_aliasing;
4458 // We turn strict aliasing off by default if we're in CL mode, since MSVC
4459 // doesn't do any TBAA.
4460 bool TBAAOnByDefault = !D.IsCLMode();
4461 if (!Args.hasFlag(options::OPT_fstrict_aliasing, StrictAliasingAliasOption,
4462 options::OPT_fno_strict_aliasing, TBAAOnByDefault))
4463 CmdArgs.push_back("-relaxed-aliasing");
4464 if (!Args.hasFlag(options::OPT_fstruct_path_tbaa,
4465 options::OPT_fno_struct_path_tbaa))
4466 CmdArgs.push_back("-no-struct-path-tbaa");
4467 if (Args.hasFlag(options::OPT_fstrict_enums, options::OPT_fno_strict_enums,
4468 false))
4469 CmdArgs.push_back("-fstrict-enums");
4470 if (!Args.hasFlag(options::OPT_fstrict_return, options::OPT_fno_strict_return,
4471 true))
4472 CmdArgs.push_back("-fno-strict-return");
4473 if (Args.hasFlag(options::OPT_fallow_editor_placeholders,
4474 options::OPT_fno_allow_editor_placeholders, false))
4475 CmdArgs.push_back("-fallow-editor-placeholders");
4476 if (Args.hasFlag(options::OPT_fstrict_vtable_pointers,
4477 options::OPT_fno_strict_vtable_pointers,
4478 false))
4479 CmdArgs.push_back("-fstrict-vtable-pointers");
4480 if (Args.hasFlag(options::OPT_fforce_emit_vtables,
4481 options::OPT_fno_force_emit_vtables,
4482 false))
4483 CmdArgs.push_back("-fforce-emit-vtables");
4484 if (!Args.hasFlag(options::OPT_foptimize_sibling_calls,
4485 options::OPT_fno_optimize_sibling_calls))
4486 CmdArgs.push_back("-mdisable-tail-calls");
4487 if (Args.hasFlag(options::OPT_fno_escaping_block_tail_calls,
4488 options::OPT_fescaping_block_tail_calls, false))
4489 CmdArgs.push_back("-fno-escaping-block-tail-calls");
4490
4491 Args.AddLastArg(CmdArgs, options::OPT_ffine_grained_bitfield_accesses,
4492 options::OPT_fno_fine_grained_bitfield_accesses);
4493
4494 // Handle segmented stacks.
4495 if (Args.hasArg(options::OPT_fsplit_stack))
4496 CmdArgs.push_back("-split-stacks");
4497
4498 RenderFloatingPointOptions(TC, D, OFastEnabled, Args, CmdArgs);
4499
4500 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) {
4501 if (TC.getTriple().isX86())
4502 A->render(Args, CmdArgs);
4503 else if ((TC.getArch() == llvm::Triple::ppc || TC.getTriple().isPPC64()) &&
4504 (A->getOption().getID() != options::OPT_mlong_double_80))
4505 A->render(Args, CmdArgs);
4506 else
4507 D.Diag(diag::err_drv_unsupported_opt_for_target)
4508 << A->getAsString(Args) << TripleStr;
4509 }
4510
4511 // Decide whether to use verbose asm. Verbose assembly is the default on
4512 // toolchains which have the integrated assembler on by default.
4513 bool IsIntegratedAssemblerDefault = TC.IsIntegratedAssemblerDefault();
4514 if (Args.hasFlag(options::OPT_fverbose_asm, options::OPT_fno_verbose_asm,
4515 IsIntegratedAssemblerDefault))
4516 CmdArgs.push_back("-masm-verbose");
4517
4518 if (!TC.useIntegratedAs())
4519 CmdArgs.push_back("-no-integrated-as");
4520
4521 if (Args.hasArg(options::OPT_fdebug_pass_structure)) {
4522 CmdArgs.push_back("-mdebug-pass");
4523 CmdArgs.push_back("Structure");
4524 }
4525 if (Args.hasArg(options::OPT_fdebug_pass_arguments)) {
4526 CmdArgs.push_back("-mdebug-pass");
4527 CmdArgs.push_back("Arguments");
4528 }
4529
4530 // Enable -mconstructor-aliases except on darwin, where we have to work around
4531 // a linker bug (see <rdar://problem/7651567>), and CUDA device code, where
4532 // aliases aren't supported.
4533 if (!RawTriple.isOSDarwin() && !RawTriple.isNVPTX())
4534 CmdArgs.push_back("-mconstructor-aliases");
4535
4536 // Darwin's kernel doesn't support guard variables; just die if we
4537 // try to use them.
4538 if (KernelOrKext && RawTriple.isOSDarwin())
4539 CmdArgs.push_back("-fforbid-guard-variables");
4540
4541 if (Args.hasFlag(options::OPT_mms_bitfields, options::OPT_mno_ms_bitfields,
4542 false)) {
4543 CmdArgs.push_back("-mms-bitfields");
4544 }
4545
4546 if (Args.hasFlag(options::OPT_mpie_copy_relocations,
4547 options::OPT_mno_pie_copy_relocations,
4548 false)) {
4549 CmdArgs.push_back("-mpie-copy-relocations");
4550 }
4551
4552 if (Args.hasFlag(options::OPT_fno_plt, options::OPT_fplt, false)) {
4553 CmdArgs.push_back("-fno-plt");
4554 }
4555
4556 // -fhosted is default.
4557 // TODO: Audit uses of KernelOrKext and see where it'd be more appropriate to
4558 // use Freestanding.
4559 bool Freestanding =
4560 Args.hasFlag(options::OPT_ffreestanding, options::OPT_fhosted, false) ||
4561 KernelOrKext;
4562 if (Freestanding)
4563 CmdArgs.push_back("-ffreestanding");
4564
4565 // This is a coarse approximation of what llvm-gcc actually does, both
4566 // -fasynchronous-unwind-tables and -fnon-call-exceptions interact in more
4567 // complicated ways.
4568 bool AsynchronousUnwindTables =
4569 Args.hasFlag(options::OPT_fasynchronous_unwind_tables,
4570 options::OPT_fno_asynchronous_unwind_tables,
4571 (TC.IsUnwindTablesDefault(Args) ||
4572 TC.getSanitizerArgs().needsUnwindTables()) &&
4573 !Freestanding);
4574 if (Args.hasFlag(options::OPT_funwind_tables, options::OPT_fno_unwind_tables,
4575 AsynchronousUnwindTables))
4576 CmdArgs.push_back("-munwind-tables");
4577
4578 TC.addClangTargetOptions(Args, CmdArgs, JA.getOffloadingDeviceKind());
4579
4580 // FIXME: Handle -mtune=.
4581 (void)Args.hasArg(options::OPT_mtune_EQ);
4582
4583 if (Arg *A = Args.getLastArg(options::OPT_mcmodel_EQ)) {
4584 CmdArgs.push_back("-mcode-model");
4585 CmdArgs.push_back(A->getValue());
4586 }
4587
4588 if (Arg *A = Args.getLastArg(options::OPT_mtls_size_EQ)) {
4589 StringRef Value = A->getValue();
4590 unsigned TLSSize = 0;
4591 Value.getAsInteger(10, TLSSize);
4592 if (!Triple.isAArch64() || !Triple.isOSBinFormatELF())
4593 D.Diag(diag::err_drv_unsupported_opt_for_target)
4594 << A->getOption().getName() << TripleStr;
4595 if (TLSSize != 12 && TLSSize != 24 && TLSSize != 32 && TLSSize != 48)
4596 D.Diag(diag::err_drv_invalid_int_value)
4597 << A->getOption().getName() << Value;
4598 Args.AddLastArg(CmdArgs, options::OPT_mtls_size_EQ);
4599 }
4600
4601 // Add the target cpu
4602 std::string CPU = getCPUName(Args, Triple, /*FromAs*/ false);
4603 if (!CPU.empty()) {
4604 CmdArgs.push_back("-target-cpu");
4605 CmdArgs.push_back(Args.MakeArgString(CPU));
4606 }
4607
4608 RenderTargetOptions(Triple, Args, KernelOrKext, CmdArgs);
4609
4610 // These two are potentially updated by AddClangCLArgs.
4611 codegenoptions::DebugInfoKind DebugInfoKind = codegenoptions::NoDebugInfo;
4612 bool EmitCodeView = false;
4613
4614 // Add clang-cl arguments.
4615 types::ID InputType = Input.getType();
4616 if (D.IsCLMode())
4617 AddClangCLArgs(Args, InputType, CmdArgs, &DebugInfoKind, &EmitCodeView);
4618
4619 DwarfFissionKind DwarfFission;
4620 RenderDebugOptions(TC, D, RawTriple, Args, EmitCodeView, IsWindowsMSVC,
4621 CmdArgs, DebugInfoKind, DwarfFission);
4622
4623 // Add the split debug info name to the command lines here so we
4624 // can propagate it to the backend.
4625 bool SplitDWARF = (DwarfFission != DwarfFissionKind::None) &&
4626 TC.getTriple().isOSBinFormatELF() &&
4627 (isa<AssembleJobAction>(JA) || isa<CompileJobAction>(JA) ||
4628 isa<BackendJobAction>(JA));
4629 if (SplitDWARF) {
4630 const char *SplitDWARFOut = SplitDebugName(Args, Input, Output);
4631 CmdArgs.push_back("-split-dwarf-file");
4632 CmdArgs.push_back(SplitDWARFOut);
4633 if (DwarfFission == DwarfFissionKind::Split) {
4634 CmdArgs.push_back("-split-dwarf-output");
4635 CmdArgs.push_back(SplitDWARFOut);
4636 }
4637 }
4638
4639 // Pass the linker version in use.
4640 if (Arg *A = Args.getLastArg(options::OPT_mlinker_version_EQ)) {
4641 CmdArgs.push_back("-target-linker-version");
4642 CmdArgs.push_back(A->getValue());
4643 }
4644
4645 // Explicitly error on some things we know we don't support and can't just
4646 // ignore.
4647 if (!Args.hasArg(options::OPT_fallow_unsupported)) {
4648 Arg *Unsupported;
4649 if (types::isCXX(InputType) && RawTriple.isOSDarwin() &&
4650 TC.getArch() == llvm::Triple::x86) {
4651 if ((Unsupported = Args.getLastArg(options::OPT_fapple_kext)) ||
4652 (Unsupported = Args.getLastArg(options::OPT_mkernel)))
4653 D.Diag(diag::err_drv_clang_unsupported_opt_cxx_darwin_i386)
4654 << Unsupported->getOption().getName();
4655 }
4656 // The faltivec option has been superseded by the maltivec option.
4657 if ((Unsupported = Args.getLastArg(options::OPT_faltivec)))
4658 D.Diag(diag::err_drv_clang_unsupported_opt_faltivec)
4659 << Unsupported->getOption().getName()
4660 << "please use -maltivec and include altivec.h explicitly";
4661 if ((Unsupported = Args.getLastArg(options::OPT_fno_altivec)))
4662 D.Diag(diag::err_drv_clang_unsupported_opt_faltivec)
4663 << Unsupported->getOption().getName() << "please use -mno-altivec";
4664 }
4665
4666 Args.AddAllArgs(CmdArgs, options::OPT_v);
4667 Args.AddLastArg(CmdArgs, options::OPT_H);
4668 if (D.CCPrintHeaders && !D.CCGenDiagnostics) {
4669 CmdArgs.push_back("-header-include-file");
4670 CmdArgs.push_back(D.CCPrintHeadersFilename ? D.CCPrintHeadersFilename
4671 : "-");
4672 }
4673 Args.AddLastArg(CmdArgs, options::OPT_P);
4674 Args.AddLastArg(CmdArgs, options::OPT_print_ivar_layout);
4675
4676 if (D.CCLogDiagnostics && !D.CCGenDiagnostics) {
4677 CmdArgs.push_back("-diagnostic-log-file");
4678 CmdArgs.push_back(D.CCLogDiagnosticsFilename ? D.CCLogDiagnosticsFilename
4679 : "-");
4680 }
4681
4682 bool UseSeparateSections = isUseSeparateSections(Triple);
4683
4684 if (Args.hasFlag(options::OPT_ffunction_sections,
4685 options::OPT_fno_function_sections, UseSeparateSections)) {
4686 CmdArgs.push_back("-ffunction-sections");
4687 }
4688
4689 if (Args.hasFlag(options::OPT_fdata_sections, options::OPT_fno_data_sections,
4690 UseSeparateSections)) {
4691 CmdArgs.push_back("-fdata-sections");
4692 }
4693
4694 if (!Args.hasFlag(options::OPT_funique_section_names,
4695 options::OPT_fno_unique_section_names, true))
4696 CmdArgs.push_back("-fno-unique-section-names");
4697
4698 Args.AddLastArg(CmdArgs, options::OPT_finstrument_functions,
4699 options::OPT_finstrument_functions_after_inlining,
4700 options::OPT_finstrument_function_entry_bare);
4701
4702 // NVPTX doesn't support PGO or coverage. There's no runtime support for
4703 // sampling, overhead of call arc collection is way too high and there's no
4704 // way to collect the output.
4705 if (!Triple.isNVPTX())
4706 addPGOAndCoverageFlags(TC, C, D, Output, Args, CmdArgs);
4707
4708 Args.AddLastArg(CmdArgs, options::OPT_fclang_abi_compat_EQ);
4709
4710 // Add runtime flag for PS4 when PGO, coverage, or sanitizers are enabled.
4711 if (RawTriple.isPS4CPU() &&
4712 !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
4713 PS4cpu::addProfileRTArgs(TC, Args, CmdArgs);
4714 PS4cpu::addSanitizerArgs(TC, CmdArgs);
4715 }
4716
4717 // Pass options for controlling the default header search paths.
4718 if (Args.hasArg(options::OPT_nostdinc)) {
4719 CmdArgs.push_back("-nostdsysteminc");
4720 CmdArgs.push_back("-nobuiltininc");
4721 } else {
4722 if (Args.hasArg(options::OPT_nostdlibinc))
4723 CmdArgs.push_back("-nostdsysteminc");
4724 Args.AddLastArg(CmdArgs, options::OPT_nostdincxx);
4725 Args.AddLastArg(CmdArgs, options::OPT_nobuiltininc);
4726 }
4727
4728 // Pass the path to compiler resource files.
4729 CmdArgs.push_back("-resource-dir");
4730 CmdArgs.push_back(D.ResourceDir.c_str());
4731
4732 Args.AddLastArg(CmdArgs, options::OPT_working_directory);
4733
4734 RenderARCMigrateToolOptions(D, Args, CmdArgs);
4735
4736 // Add preprocessing options like -I, -D, etc. if we are using the
4737 // preprocessor.
4738 //
4739 // FIXME: Support -fpreprocessed
4740 if (types::getPreprocessedType(InputType) != types::TY_INVALID)
4741 AddPreprocessingOptions(C, JA, D, Args, CmdArgs, Output, Inputs);
4742
4743 // Don't warn about "clang -c -DPIC -fPIC test.i" because libtool.m4 assumes
4744 // that "The compiler can only warn and ignore the option if not recognized".
4745 // When building with ccache, it will pass -D options to clang even on
4746 // preprocessed inputs and configure concludes that -fPIC is not supported.
4747 Args.ClaimAllArgs(options::OPT_D);
4748
4749 // Manually translate -O4 to -O3; let clang reject others.
4750 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
4751 if (A->getOption().matches(options::OPT_O4)) {
4752 CmdArgs.push_back("-O3");
4753 D.Diag(diag::warn_O4_is_O3);
4754 } else {
4755 A->render(Args, CmdArgs);
4756 }
4757 }
4758
4759 // Warn about ignored options to clang.
4760 for (const Arg *A :
4761 Args.filtered(options::OPT_clang_ignored_gcc_optimization_f_Group)) {
4762 D.Diag(diag::warn_ignored_gcc_optimization) << A->getAsString(Args);
4763 A->claim();
4764 }
4765
4766 for (const Arg *A :
4767 Args.filtered(options::OPT_clang_ignored_legacy_options_Group)) {
4768 D.Diag(diag::warn_ignored_clang_option) << A->getAsString(Args);
4769 A->claim();
4770 }
4771
4772 claimNoWarnArgs(Args);
4773
4774 Args.AddAllArgs(CmdArgs, options::OPT_R_Group);
4775
4776 Args.AddAllArgs(CmdArgs, options::OPT_W_Group);
4777 if (Args.hasFlag(options::OPT_pedantic, options::OPT_no_pedantic, false))
4778 CmdArgs.push_back("-pedantic");
4779 Args.AddLastArg(CmdArgs, options::OPT_pedantic_errors);
4780 Args.AddLastArg(CmdArgs, options::OPT_w);
4781
4782 // Fixed point flags
4783 if (Args.hasFlag(options::OPT_ffixed_point, options::OPT_fno_fixed_point,
4784 /*Default=*/false))
4785 Args.AddLastArg(CmdArgs, options::OPT_ffixed_point);
4786
4787 // Handle -{std, ansi, trigraphs} -- take the last of -{std, ansi}
4788 // (-ansi is equivalent to -std=c89 or -std=c++98).
4789 //
4790 // If a std is supplied, only add -trigraphs if it follows the
4791 // option.
4792 bool ImplyVCPPCXXVer = false;
4793 const Arg *Std = Args.getLastArg(options::OPT_std_EQ, options::OPT_ansi);
4794 if (Std) {
4795 if (Std->getOption().matches(options::OPT_ansi))
4796 if (types::isCXX(InputType))
4797 CmdArgs.push_back("-std=c++98");
4798 else
4799 CmdArgs.push_back("-std=c89");
4800 else
4801 Std->render(Args, CmdArgs);
4802
4803 // If -f(no-)trigraphs appears after the language standard flag, honor it.
4804 if (Arg *A = Args.getLastArg(options::OPT_std_EQ, options::OPT_ansi,
4805 options::OPT_ftrigraphs,
4806 options::OPT_fno_trigraphs))
4807 if (A != Std)
4808 A->render(Args, CmdArgs);
4809 } else {
4810 // Honor -std-default.
4811 //
4812 // FIXME: Clang doesn't correctly handle -std= when the input language
4813 // doesn't match. For the time being just ignore this for C++ inputs;
4814 // eventually we want to do all the standard defaulting here instead of
4815 // splitting it between the driver and clang -cc1.
4816 if (!types::isCXX(InputType))
4817 Args.AddAllArgsTranslated(CmdArgs, options::OPT_std_default_EQ, "-std=",
4818 /*Joined=*/true);
4819 else if (IsWindowsMSVC)
4820 ImplyVCPPCXXVer = true;
4821
4822 Args.AddLastArg(CmdArgs, options::OPT_ftrigraphs,
4823 options::OPT_fno_trigraphs);
4824 }
4825
4826 // GCC's behavior for -Wwrite-strings is a bit strange:
4827 // * In C, this "warning flag" changes the types of string literals from
4828 // 'char[N]' to 'const char[N]', and thus triggers an unrelated warning
4829 // for the discarded qualifier.
4830 // * In C++, this is just a normal warning flag.
4831 //
4832 // Implementing this warning correctly in C is hard, so we follow GCC's
4833 // behavior for now. FIXME: Directly diagnose uses of a string literal as
4834 // a non-const char* in C, rather than using this crude hack.
4835 if (!types::isCXX(InputType)) {
4836 // FIXME: This should behave just like a warning flag, and thus should also
4837 // respect -Weverything, -Wno-everything, -Werror=write-strings, and so on.
4838 Arg *WriteStrings =
4839 Args.getLastArg(options::OPT_Wwrite_strings,
4840 options::OPT_Wno_write_strings, options::OPT_w);
4841 if (WriteStrings &&
4842 WriteStrings->getOption().matches(options::OPT_Wwrite_strings))
4843 CmdArgs.push_back("-fconst-strings");
4844 }
4845
4846 // GCC provides a macro definition '__DEPRECATED' when -Wdeprecated is active
4847 // during C++ compilation, which it is by default. GCC keeps this define even
4848 // in the presence of '-w', match this behavior bug-for-bug.
4849 if (types::isCXX(InputType) &&
4850 Args.hasFlag(options::OPT_Wdeprecated, options::OPT_Wno_deprecated,
4851 true)) {
4852 CmdArgs.push_back("-fdeprecated-macro");
4853 }
4854
4855 // Translate GCC's misnamer '-fasm' arguments to '-fgnu-keywords'.
4856 if (Arg *Asm = Args.getLastArg(options::OPT_fasm, options::OPT_fno_asm)) {
4857 if (Asm->getOption().matches(options::OPT_fasm))
4858 CmdArgs.push_back("-fgnu-keywords");
4859 else
4860 CmdArgs.push_back("-fno-gnu-keywords");
4861 }
4862
4863 if (ShouldDisableDwarfDirectory(Args, TC))
4864 CmdArgs.push_back("-fno-dwarf-directory-asm");
4865
4866 if (!ShouldEnableAutolink(Args, TC, JA))
4867 CmdArgs.push_back("-fno-autolink");
4868
4869 // Add in -fdebug-compilation-dir if necessary.
4870 addDebugCompDirArg(Args, CmdArgs, D.getVFS());
4871
4872 addDebugPrefixMapArg(D, Args, CmdArgs);
4873
4874 if (Arg *A = Args.getLastArg(options::OPT_ftemplate_depth_,
4875 options::OPT_ftemplate_depth_EQ)) {
4876 CmdArgs.push_back("-ftemplate-depth");
4877 CmdArgs.push_back(A->getValue());
4878 }
4879
4880 if (Arg *A = Args.getLastArg(options::OPT_foperator_arrow_depth_EQ)) {
4881 CmdArgs.push_back("-foperator-arrow-depth");
4882 CmdArgs.push_back(A->getValue());
4883 }
4884
4885 if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_depth_EQ)) {
4886 CmdArgs.push_back("-fconstexpr-depth");
4887 CmdArgs.push_back(A->getValue());
4888 }
4889
4890 if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_steps_EQ)) {
4891 CmdArgs.push_back("-fconstexpr-steps");
4892 CmdArgs.push_back(A->getValue());
4893 }
4894
4895 if (Args.hasArg(options::OPT_fexperimental_new_constant_interpreter))
4896 CmdArgs.push_back("-fexperimental-new-constant-interpreter");
4897
4898 if (Arg *A = Args.getLastArg(options::OPT_fbracket_depth_EQ)) {
4899 CmdArgs.push_back("-fbracket-depth");
4900 CmdArgs.push_back(A->getValue());
4901 }
4902
4903 if (Arg *A = Args.getLastArg(options::OPT_Wlarge_by_value_copy_EQ,
4904 options::OPT_Wlarge_by_value_copy_def)) {
4905 if (A->getNumValues()) {
4906 StringRef bytes = A->getValue();
4907 CmdArgs.push_back(Args.MakeArgString("-Wlarge-by-value-copy=" + bytes));
4908 } else
4909 CmdArgs.push_back("-Wlarge-by-value-copy=64"); // default value
4910 }
4911
4912 if (Args.hasArg(options::OPT_relocatable_pch))
4913 CmdArgs.push_back("-relocatable-pch");
4914
4915 if (const Arg *A = Args.getLastArg(options::OPT_fcf_runtime_abi_EQ)) {
4916 static const char *kCFABIs[] = {
4917 "standalone", "objc", "swift", "swift-5.0", "swift-4.2", "swift-4.1",
4918 };
4919
4920 if (find(kCFABIs, StringRef(A->getValue())) == std::end(kCFABIs))
4921 D.Diag(diag::err_drv_invalid_cf_runtime_abi) << A->getValue();
4922 else
4923 A->render(Args, CmdArgs);
4924 }
4925
4926 if (Arg *A = Args.getLastArg(options::OPT_fconstant_string_class_EQ)) {
4927 CmdArgs.push_back("-fconstant-string-class");
4928 CmdArgs.push_back(A->getValue());
4929 }
4930
4931 if (Arg *A = Args.getLastArg(options::OPT_ftabstop_EQ)) {
4932 CmdArgs.push_back("-ftabstop");
4933 CmdArgs.push_back(A->getValue());
4934 }
4935
4936 if (Args.hasFlag(options::OPT_fstack_size_section,
4937 options::OPT_fno_stack_size_section, RawTriple.isPS4()))
4938 CmdArgs.push_back("-fstack-size-section");
4939
4940 CmdArgs.push_back("-ferror-limit");
4941 if (Arg *A = Args.getLastArg(options::OPT_ferror_limit_EQ))
4942 CmdArgs.push_back(A->getValue());
4943 else
4944 CmdArgs.push_back("19");
4945
4946 if (Arg *A = Args.getLastArg(options::OPT_fmacro_backtrace_limit_EQ)) {
4947 CmdArgs.push_back("-fmacro-backtrace-limit");
4948 CmdArgs.push_back(A->getValue());
4949 }
4950
4951 if (Arg *A = Args.getLastArg(options::OPT_ftemplate_backtrace_limit_EQ)) {
4952 CmdArgs.push_back("-ftemplate-backtrace-limit");
4953 CmdArgs.push_back(A->getValue());
4954 }
4955
4956 if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_backtrace_limit_EQ)) {
4957 CmdArgs.push_back("-fconstexpr-backtrace-limit");
4958 CmdArgs.push_back(A->getValue());
4959 }
4960
4961 if (Arg *A = Args.getLastArg(options::OPT_fspell_checking_limit_EQ)) {
4962 CmdArgs.push_back("-fspell-checking-limit");
4963 CmdArgs.push_back(A->getValue());
4964 }
4965
4966 // Pass -fmessage-length=.
4967 CmdArgs.push_back("-fmessage-length");
4968 if (Arg *A = Args.getLastArg(options::OPT_fmessage_length_EQ)) {
4969 CmdArgs.push_back(A->getValue());
4970 } else {
4971 // If -fmessage-length=N was not specified, determine whether this is a
4972 // terminal and, if so, implicitly define -fmessage-length appropriately.
4973 unsigned N = llvm::sys::Process::StandardErrColumns();
4974 CmdArgs.push_back(Args.MakeArgString(Twine(N)));
4975 }
4976
4977 // -fvisibility= and -fvisibility-ms-compat are of a piece.
4978 if (const Arg *A = Args.getLastArg(options::OPT_fvisibility_EQ,
4979 options::OPT_fvisibility_ms_compat)) {
4980 if (A->getOption().matches(options::OPT_fvisibility_EQ)) {
4981 CmdArgs.push_back("-fvisibility");
4982 CmdArgs.push_back(A->getValue());
4983 } else {
4984 assert(A->getOption().matches(options::OPT_fvisibility_ms_compat));
4985 CmdArgs.push_back("-fvisibility");
4986 CmdArgs.push_back("hidden");
4987 CmdArgs.push_back("-ftype-visibility");
4988 CmdArgs.push_back("default");
4989 }
4990 }
4991
4992 Args.AddLastArg(CmdArgs, options::OPT_fvisibility_inlines_hidden);
4993 Args.AddLastArg(CmdArgs, options::OPT_fvisibility_global_new_delete_hidden);
4994
4995 Args.AddLastArg(CmdArgs, options::OPT_ftlsmodel_EQ);
4996
4997 // Forward -f (flag) options which we can pass directly.
4998 Args.AddLastArg(CmdArgs, options::OPT_femit_all_decls);
4999 Args.AddLastArg(CmdArgs, options::OPT_fheinous_gnu_extensions);
5000 Args.AddLastArg(CmdArgs, options::OPT_fdigraphs, options::OPT_fno_digraphs);
5001 Args.AddLastArg(CmdArgs, options::OPT_fno_operator_names);
5002 Args.AddLastArg(CmdArgs, options::OPT_femulated_tls,
5003 options::OPT_fno_emulated_tls);
5004 Args.AddLastArg(CmdArgs, options::OPT_fkeep_static_consts);
5005
5006 // AltiVec-like language extensions aren't relevant for assembling.
5007 if (!isa<PreprocessJobAction>(JA) || Output.getType() != types::TY_PP_Asm)
5008 Args.AddLastArg(CmdArgs, options::OPT_fzvector);
5009
5010 Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_show_template_tree);
5011 Args.AddLastArg(CmdArgs, options::OPT_fno_elide_type);
5012
5013 // Forward flags for OpenMP. We don't do this if the current action is an
5014 // device offloading action other than OpenMP.
5015 if (Args.hasFlag(options::OPT_fopenmp, options::OPT_fopenmp_EQ,
5016 options::OPT_fno_openmp, false) &&
5017 (JA.isDeviceOffloading(Action::OFK_None) ||
5018 JA.isDeviceOffloading(Action::OFK_OpenMP))) {
5019 switch (D.getOpenMPRuntime(Args)) {
5020 case Driver::OMPRT_OMP:
5021 case Driver::OMPRT_IOMP5:
5022 // Clang can generate useful OpenMP code for these two runtime libraries.
5023 CmdArgs.push_back("-fopenmp");
5024
5025 // If no option regarding the use of TLS in OpenMP codegeneration is
5026 // given, decide a default based on the target. Otherwise rely on the
5027 // options and pass the right information to the frontend.
5028 if (!Args.hasFlag(options::OPT_fopenmp_use_tls,
5029 options::OPT_fnoopenmp_use_tls, /*Default=*/true))
5030 CmdArgs.push_back("-fnoopenmp-use-tls");
5031 Args.AddLastArg(CmdArgs, options::OPT_fopenmp_simd,
5032 options::OPT_fno_openmp_simd);
5033 Args.AddAllArgs(CmdArgs, options::OPT_fopenmp_enable_irbuilder);
5034 Args.AddAllArgs(CmdArgs, options::OPT_fopenmp_version_EQ);
5035 Args.AddAllArgs(CmdArgs, options::OPT_fopenmp_cuda_number_of_sm_EQ);
5036 Args.AddAllArgs(CmdArgs, options::OPT_fopenmp_cuda_blocks_per_sm_EQ);
5037 Args.AddAllArgs(CmdArgs,
5038 options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ);
5039 if (Args.hasFlag(options::OPT_fopenmp_optimistic_collapse,
5040 options::OPT_fno_openmp_optimistic_collapse,
5041 /*Default=*/false))
5042 CmdArgs.push_back("-fopenmp-optimistic-collapse");
5043
5044 // When in OpenMP offloading mode with NVPTX target, forward
5045 // cuda-mode flag
5046 if (Args.hasFlag(options::OPT_fopenmp_cuda_mode,
5047 options::OPT_fno_openmp_cuda_mode, /*Default=*/false))
5048 CmdArgs.push_back("-fopenmp-cuda-mode");
5049
5050 // When in OpenMP offloading mode with NVPTX target, check if full runtime
5051 // is required.
5052 if (Args.hasFlag(options::OPT_fopenmp_cuda_force_full_runtime,
5053 options::OPT_fno_openmp_cuda_force_full_runtime,
5054 /*Default=*/false))
5055 CmdArgs.push_back("-fopenmp-cuda-force-full-runtime");
5056 break;
5057 default:
5058 // By default, if Clang doesn't know how to generate useful OpenMP code
5059 // for a specific runtime library, we just don't pass the '-fopenmp' flag
5060 // down to the actual compilation.
5061 // FIXME: It would be better to have a mode which *only* omits IR
5062 // generation based on the OpenMP support so that we get consistent
5063 // semantic analysis, etc.
5064 break;
5065 }
5066 } else {
5067 Args.AddLastArg(CmdArgs, options::OPT_fopenmp_simd,
5068 options::OPT_fno_openmp_simd);
5069 Args.AddAllArgs(CmdArgs, options::OPT_fopenmp_version_EQ);
5070 }
5071
5072 const SanitizerArgs &Sanitize = TC.getSanitizerArgs();
5073 Sanitize.addArgs(TC, Args, CmdArgs, InputType);
5074
5075 const XRayArgs &XRay = TC.getXRayArgs();
5076 XRay.addArgs(TC, Args, CmdArgs, InputType);
5077
5078 if (Arg *A = Args.getLastArg(options::OPT_fpatchable_function_entry_EQ)) {
5079 StringRef S0 = A->getValue(), S = S0;
5080 unsigned Size, Offset = 0;
5081 if (!Triple.isAArch64() && Triple.getArch() != llvm::Triple::x86 &&
5082 Triple.getArch() != llvm::Triple::x86_64)
5083 D.Diag(diag::err_drv_unsupported_opt_for_target)
5084 << A->getAsString(Args) << TripleStr;
5085 else if (S.consumeInteger(10, Size) ||
5086 (!S.empty() && (!S.consume_front(",") ||
5087 S.consumeInteger(10, Offset) || !S.empty())))
5088 D.Diag(diag::err_drv_invalid_argument_to_option)
5089 << S0 << A->getOption().getName();
5090 else if (Size < Offset)
5091 D.Diag(diag::err_drv_unsupported_fpatchable_function_entry_argument);
5092 else {
5093 CmdArgs.push_back(Args.MakeArgString(A->getSpelling() + Twine(Size)));
5094 CmdArgs.push_back(Args.MakeArgString(
5095 "-fpatchable-function-entry-offset=" + Twine(Offset)));
5096 }
5097 }
5098
5099 if (TC.SupportsProfiling()) {
5100 Args.AddLastArg(CmdArgs, options::OPT_pg);
5101
5102 llvm::Triple::ArchType Arch = TC.getArch();
5103 if (Arg *A = Args.getLastArg(options::OPT_mfentry)) {
5104 if (Arch == llvm::Triple::systemz || TC.getTriple().isX86())
5105 A->render(Args, CmdArgs);
5106 else
5107 D.Diag(diag::err_drv_unsupported_opt_for_target)
5108 << A->getAsString(Args) << TripleStr;
5109 }
5110 if (Arg *A = Args.getLastArg(options::OPT_mnop_mcount)) {
5111 if (Arch == llvm::Triple::systemz)
5112 A->render(Args, CmdArgs);
5113 else
5114 D.Diag(diag::err_drv_unsupported_opt_for_target)
5115 << A->getAsString(Args) << TripleStr;
5116 }
5117 if (Arg *A = Args.getLastArg(options::OPT_mrecord_mcount)) {
5118 if (Arch == llvm::Triple::systemz)
5119 A->render(Args, CmdArgs);
5120 else
5121 D.Diag(diag::err_drv_unsupported_opt_for_target)
5122 << A->getAsString(Args) << TripleStr;
5123 }
5124 }
5125
5126 if (Args.getLastArg(options::OPT_fapple_kext) ||
5127 (Args.hasArg(options::OPT_mkernel) && types::isCXX(InputType)))
5128 CmdArgs.push_back("-fapple-kext");
5129
5130 Args.AddLastArg(CmdArgs, options::OPT_flax_vector_conversions_EQ);
5131 Args.AddLastArg(CmdArgs, options::OPT_fobjc_sender_dependent_dispatch);
5132 Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_print_source_range_info);
5133 Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_parseable_fixits);
5134 Args.AddLastArg(CmdArgs, options::OPT_ftime_report);
5135 Args.AddLastArg(CmdArgs, options::OPT_ftime_trace);
5136 Args.AddLastArg(CmdArgs, options::OPT_ftime_trace_granularity_EQ);
5137 Args.AddLastArg(CmdArgs, options::OPT_ftrapv);
5138 Args.AddLastArg(CmdArgs, options::OPT_malign_double);
5139 Args.AddLastArg(CmdArgs, options::OPT_fno_temp_file);
5140
5141 if (Arg *A = Args.getLastArg(options::OPT_ftrapv_handler_EQ)) {
5142 CmdArgs.push_back("-ftrapv-handler");
5143 CmdArgs.push_back(A->getValue());
5144 }
5145
5146 Args.AddLastArg(CmdArgs, options::OPT_ftrap_function_EQ);
5147
5148 // -fno-strict-overflow implies -fwrapv if it isn't disabled, but
5149 // -fstrict-overflow won't turn off an explicitly enabled -fwrapv.
5150 if (Arg *A = Args.getLastArg(options::OPT_fwrapv, options::OPT_fno_wrapv)) {
5151 if (A->getOption().matches(options::OPT_fwrapv))
5152 CmdArgs.push_back("-fwrapv");
5153 } else if (Arg *A = Args.getLastArg(options::OPT_fstrict_overflow,
5154 options::OPT_fno_strict_overflow)) {
5155 if (A->getOption().matches(options::OPT_fno_strict_overflow))
5156 CmdArgs.push_back("-fwrapv");
5157 }
5158
5159 if (Arg *A = Args.getLastArg(options::OPT_freroll_loops,
5160 options::OPT_fno_reroll_loops))
5161 if (A->getOption().matches(options::OPT_freroll_loops))
5162 CmdArgs.push_back("-freroll-loops");
5163
5164 Args.AddLastArg(CmdArgs, options::OPT_fwritable_strings);
5165 Args.AddLastArg(CmdArgs, options::OPT_funroll_loops,
5166 options::OPT_fno_unroll_loops);
5167
5168 Args.AddLastArg(CmdArgs, options::OPT_pthread);
5169
5170 if (Args.hasFlag(options::OPT_mspeculative_load_hardening, options::OPT_mno_speculative_load_hardening,
5171 false))
5172 CmdArgs.push_back(Args.MakeArgString("-mspeculative-load-hardening"));
5173
5174 RenderSSPOptions(TC, Args, CmdArgs, KernelOrKext);
5175 RenderTrivialAutoVarInitOptions(D, TC, Args, CmdArgs);
5176
5177 // Translate -mstackrealign
5178 if (Args.hasFlag(options::OPT_mstackrealign, options::OPT_mno_stackrealign,
5179 false))
5180 CmdArgs.push_back(Args.MakeArgString("-mstackrealign"));
5181
5182 if (Args.hasArg(options::OPT_mstack_alignment)) {
5183 StringRef alignment = Args.getLastArgValue(options::OPT_mstack_alignment);
5184 CmdArgs.push_back(Args.MakeArgString("-mstack-alignment=" + alignment));
5185 }
5186
5187 if (Args.hasArg(options::OPT_mstack_probe_size)) {
5188 StringRef Size = Args.getLastArgValue(options::OPT_mstack_probe_size);
5189
5190 if (!Size.empty())
5191 CmdArgs.push_back(Args.MakeArgString("-mstack-probe-size=" + Size));
5192 else
5193 CmdArgs.push_back("-mstack-probe-size=0");
5194 }
5195
5196 if (!Args.hasFlag(options::OPT_mstack_arg_probe,
5197 options::OPT_mno_stack_arg_probe, true))
5198 CmdArgs.push_back(Args.MakeArgString("-mno-stack-arg-probe"));
5199
5200 if (Arg *A = Args.getLastArg(options::OPT_mrestrict_it,
5201 options::OPT_mno_restrict_it)) {
5202 if (A->getOption().matches(options::OPT_mrestrict_it)) {
5203 CmdArgs.push_back("-mllvm");
5204 CmdArgs.push_back("-arm-restrict-it");
5205 } else {
5206 CmdArgs.push_back("-mllvm");
5207 CmdArgs.push_back("-arm-no-restrict-it");
5208 }
5209 } else if (Triple.isOSWindows() &&
5210 (Triple.getArch() == llvm::Triple::arm ||
5211 Triple.getArch() == llvm::Triple::thumb)) {
5212 // Windows on ARM expects restricted IT blocks
5213 CmdArgs.push_back("-mllvm");
5214 CmdArgs.push_back("-arm-restrict-it");
5215 }
5216
5217 // Forward -cl options to -cc1
5218 RenderOpenCLOptions(Args, CmdArgs);
5219
5220 if (Args.hasFlag(options::OPT_fhip_new_launch_api,
5221 options::OPT_fno_hip_new_launch_api, false))
5222 CmdArgs.push_back("-fhip-new-launch-api");
5223
5224 if (Arg *A = Args.getLastArg(options::OPT_fcf_protection_EQ)) {
5225 CmdArgs.push_back(
5226 Args.MakeArgString(Twine("-fcf-protection=") + A->getValue()));
5227 }
5228
5229 // Forward -f options with positive and negative forms; we translate
5230 // these by hand.
5231 if (Arg *A = getLastProfileSampleUseArg(Args)) {
5232 auto *PGOArg = Args.getLastArg(
5233 options::OPT_fprofile_generate, options::OPT_fprofile_generate_EQ,
5234 options::OPT_fcs_profile_generate, options::OPT_fcs_profile_generate_EQ,
5235 options::OPT_fprofile_use, options::OPT_fprofile_use_EQ);
5236 if (PGOArg)
5237 D.Diag(diag::err_drv_argument_not_allowed_with)
5238 << "SampleUse with PGO options";
5239
5240 StringRef fname = A->getValue();
5241 if (!llvm::sys::fs::exists(fname))
5242 D.Diag(diag::err_drv_no_such_file) << fname;
5243 else
5244 A->render(Args, CmdArgs);
5245 }
5246 Args.AddLastArg(CmdArgs, options::OPT_fprofile_remapping_file_EQ);
5247
5248 RenderBuiltinOptions(TC, RawTriple, Args, CmdArgs);
5249
5250 if (!Args.hasFlag(options::OPT_fassume_sane_operator_new,
5251 options::OPT_fno_assume_sane_operator_new))
5252 CmdArgs.push_back("-fno-assume-sane-operator-new");
5253
5254 // -fblocks=0 is default.
5255 if (Args.hasFlag(options::OPT_fblocks, options::OPT_fno_blocks,
5256 TC.IsBlocksDefault()) ||
5257 (Args.hasArg(options::OPT_fgnu_runtime) &&
5258 Args.hasArg(options::OPT_fobjc_nonfragile_abi) &&
5259 !Args.hasArg(options::OPT_fno_blocks))) {
5260 CmdArgs.push_back("-fblocks");
5261
5262 if (!Args.hasArg(options::OPT_fgnu_runtime) && !TC.hasBlocksRuntime())
5263 CmdArgs.push_back("-fblocks-runtime-optional");
5264 }
5265
5266 // -fencode-extended-block-signature=1 is default.
5267 if (TC.IsEncodeExtendedBlockSignatureDefault())
5268 CmdArgs.push_back("-fencode-extended-block-signature");
5269
5270 if (Args.hasFlag(options::OPT_fcoroutines_ts, options::OPT_fno_coroutines_ts,
5271 false) &&
5272 types::isCXX(InputType)) {
5273 CmdArgs.push_back("-fcoroutines-ts");
5274 }
5275
5276 Args.AddLastArg(CmdArgs, options::OPT_fdouble_square_bracket_attributes,
5277 options::OPT_fno_double_square_bracket_attributes);
5278
5279 // -faccess-control is default.
5280 if (Args.hasFlag(options::OPT_fno_access_control,
5281 options::OPT_faccess_control, false))
5282 CmdArgs.push_back("-fno-access-control");
5283
5284 // -felide-constructors is the default.
5285 if (Args.hasFlag(options::OPT_fno_elide_constructors,
5286 options::OPT_felide_constructors, false))
5287 CmdArgs.push_back("-fno-elide-constructors");
5288
5289 ToolChain::RTTIMode RTTIMode = TC.getRTTIMode();
5290
5291 if (KernelOrKext || (types::isCXX(InputType) &&
5292 (RTTIMode == ToolChain::RM_Disabled)))
5293 CmdArgs.push_back("-fno-rtti");
5294
5295 // -fshort-enums=0 is default for all architectures except Hexagon.
5296 if (Args.hasFlag(options::OPT_fshort_enums, options::OPT_fno_short_enums,
5297 TC.getArch() == llvm::Triple::hexagon))
5298 CmdArgs.push_back("-fshort-enums");
5299
5300 RenderCharacterOptions(Args, AuxTriple ? *AuxTriple : RawTriple, CmdArgs);
5301
5302 // -fuse-cxa-atexit is default.
5303 if (!Args.hasFlag(
5304 options::OPT_fuse_cxa_atexit, options::OPT_fno_use_cxa_atexit,
5305 !RawTriple.isOSWindows() &&
5306 TC.getArch() != llvm::Triple::xcore &&
5307 ((RawTriple.getVendor() != llvm::Triple::MipsTechnologies) ||
5308 RawTriple.hasEnvironment())) ||
5309 KernelOrKext)
5310 CmdArgs.push_back("-fno-use-cxa-atexit");
5311
5312 if (Args.hasFlag(options::OPT_fregister_global_dtors_with_atexit,
5313 options::OPT_fno_register_global_dtors_with_atexit,
5314 RawTriple.isOSDarwin() && !KernelOrKext))
5315 CmdArgs.push_back("-fregister-global-dtors-with-atexit");
5316
5317 // -fms-extensions=0 is default.
5318 if (Args.hasFlag(options::OPT_fms_extensions, options::OPT_fno_ms_extensions,
5319 IsWindowsMSVC))
5320 CmdArgs.push_back("-fms-extensions");
5321
5322 // -fno-use-line-directives is default.
5323 if (Args.hasFlag(options::OPT_fuse_line_directives,
5324 options::OPT_fno_use_line_directives, false))
5325 CmdArgs.push_back("-fuse-line-directives");
5326
5327 // -fms-compatibility=0 is default.
5328 bool IsMSVCCompat = Args.hasFlag(
5329 options::OPT_fms_compatibility, options::OPT_fno_ms_compatibility,
5330 (IsWindowsMSVC && Args.hasFlag(options::OPT_fms_extensions,
5331 options::OPT_fno_ms_extensions, true)));
5332 if (IsMSVCCompat)
5333 CmdArgs.push_back("-fms-compatibility");
5334
5335 // Handle -fgcc-version, if present.
5336 VersionTuple GNUCVer;
5337 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) {
5338 // Check that the version has 1 to 3 components and the minor and patch
5339 // versions fit in two decimal digits.
5340 StringRef Val = A->getValue();
5341 Val = Val.empty() ? "0" : Val; // Treat "" as 0 or disable.
5342 bool Invalid = GNUCVer.tryParse(Val);
5343 unsigned Minor = GNUCVer.getMinor().getValueOr(0);
5344 unsigned Patch = GNUCVer.getSubminor().getValueOr(0);
5345 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) {
5346 D.Diag(diag::err_drv_invalid_value)
5347 << A->getAsString(Args) << A->getValue();
5348 }
5349 } else if (!IsMSVCCompat) {
5350 // Imitate GCC 4.2.1 by default if -fms-compatibility is not in effect.
5351 GNUCVer = VersionTuple(4, 2, 1);
5352 }
5353 if (!GNUCVer.empty()) {
5354 CmdArgs.push_back(
5355 Args.MakeArgString("-fgnuc-version=" + GNUCVer.getAsString()));
5356 }
5357
5358 VersionTuple MSVT = TC.computeMSVCVersion(&D, Args);
5359 if (!MSVT.empty())
5360 CmdArgs.push_back(
5361 Args.MakeArgString("-fms-compatibility-version=" + MSVT.getAsString()));
5362
5363 bool IsMSVC2015Compatible = MSVT.getMajor() >= 19;
5364 if (ImplyVCPPCXXVer) {
5365 StringRef LanguageStandard;
5366 if (const Arg *StdArg = Args.getLastArg(options::OPT__SLASH_std)) {
5367 Std = StdArg;
5368 LanguageStandard = llvm::StringSwitch<StringRef>(StdArg->getValue())
5369 .Case("c++14", "-std=c++14")
5370 .Case("c++17", "-std=c++17")
5371 .Case("c++latest", "-std=c++2a")
5372 .Default("");
5373 if (LanguageStandard.empty())
5374 D.Diag(clang::diag::warn_drv_unused_argument)
5375 << StdArg->getAsString(Args);
5376 }
5377
5378 if (LanguageStandard.empty()) {
5379 if (IsMSVC2015Compatible)
5380 LanguageStandard = "-std=c++14";
5381 else
5382 LanguageStandard = "-std=c++11";
5383 }
5384
5385 CmdArgs.push_back(LanguageStandard.data());
5386 }
5387
5388 // -fno-borland-extensions is default.
5389 if (Args.hasFlag(options::OPT_fborland_extensions,
5390 options::OPT_fno_borland_extensions, false))
5391 CmdArgs.push_back("-fborland-extensions");
5392
5393 // -fno-declspec is default, except for PS4.
5394 if (Args.hasFlag(options::OPT_fdeclspec, options::OPT_fno_declspec,
5395 RawTriple.isPS4()))
5396 CmdArgs.push_back("-fdeclspec");
5397 else if (Args.hasArg(options::OPT_fno_declspec))
5398 CmdArgs.push_back("-fno-declspec"); // Explicitly disabling __declspec.
5399
5400 // -fthreadsafe-static is default, except for MSVC compatibility versions less
5401 // than 19.
5402 if (!Args.hasFlag(options::OPT_fthreadsafe_statics,
5403 options::OPT_fno_threadsafe_statics,
5404 !IsWindowsMSVC || IsMSVC2015Compatible))
5405 CmdArgs.push_back("-fno-threadsafe-statics");
5406
5407 // -fno-delayed-template-parsing is default, except when targeting MSVC.
5408 // Many old Windows SDK versions require this to parse.
5409 // FIXME: MSVC introduced /Zc:twoPhase- to disable this behavior in their
5410 // compiler. We should be able to disable this by default at some point.
5411 if (Args.hasFlag(options::OPT_fdelayed_template_parsing,
5412 options::OPT_fno_delayed_template_parsing, IsWindowsMSVC))
5413 CmdArgs.push_back("-fdelayed-template-parsing");
5414
5415 // -fgnu-keywords default varies depending on language; only pass if
5416 // specified.
5417 Args.AddLastArg(CmdArgs, options::OPT_fgnu_keywords,
5418 options::OPT_fno_gnu_keywords);
5419
5420 if (Args.hasFlag(options::OPT_fgnu89_inline, options::OPT_fno_gnu89_inline,
5421 false))
5422 CmdArgs.push_back("-fgnu89-inline");
5423
5424 if (Args.hasArg(options::OPT_fno_inline))
5425 CmdArgs.push_back("-fno-inline");
5426
5427 Args.AddLastArg(CmdArgs, options::OPT_finline_functions,
5428 options::OPT_finline_hint_functions,
5429 options::OPT_fno_inline_functions);
5430
5431 // FIXME: Find a better way to determine whether the language has modules
5432 // support by default, or just assume that all languages do.
5433 bool HaveModules =
5434 Std && (Std->containsValue("c++2a") || Std->containsValue("c++latest"));
5435 RenderModulesOptions(C, D, Args, Input, Output, CmdArgs, HaveModules);
5436
5437 if (Args.hasFlag(options::OPT_fpch_validate_input_files_content,
5438 options::OPT_fno_pch_validate_input_files_content, false))
5439 CmdArgs.push_back("-fvalidate-ast-input-files-content");
5440
5441 Args.AddLastArg(CmdArgs, options::OPT_fexperimental_new_pass_manager,
5442 options::OPT_fno_experimental_new_pass_manager);
5443
5444 ObjCRuntime Runtime = AddObjCRuntimeArgs(Args, CmdArgs, rewriteKind);
5445 RenderObjCOptions(TC, D, RawTriple, Args, Runtime, rewriteKind != RK_None,
5446 Input, CmdArgs);
5447
5448 if (Args.hasFlag(options::OPT_fapplication_extension,
5449 options::OPT_fno_application_extension, false))
5450 CmdArgs.push_back("-fapplication-extension");
5451
5452 // Handle GCC-style exception args.
5453 if (!C.getDriver().IsCLMode())
5454 addExceptionArgs(Args, InputType, TC, KernelOrKext, Runtime, CmdArgs);
5455
5456 // Handle exception personalities
5457 Arg *A = Args.getLastArg(
5458 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions,
5459 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions);
5460 if (A) {
5461 const Option &Opt = A->getOption();
5462 if (Opt.matches(options::OPT_fsjlj_exceptions))
5463 CmdArgs.push_back("-fsjlj-exceptions");
5464 if (Opt.matches(options::OPT_fseh_exceptions))
5465 CmdArgs.push_back("-fseh-exceptions");
5466 if (Opt.matches(options::OPT_fdwarf_exceptions))
5467 CmdArgs.push_back("-fdwarf-exceptions");
5468 if (Opt.matches(options::OPT_fwasm_exceptions))
5469 CmdArgs.push_back("-fwasm-exceptions");
5470 } else {
5471 switch (TC.GetExceptionModel(Args)) {
5472 default:
5473 break;
5474 case llvm::ExceptionHandling::DwarfCFI:
5475 CmdArgs.push_back("-fdwarf-exceptions");
5476 break;
5477 case llvm::ExceptionHandling::SjLj:
5478 CmdArgs.push_back("-fsjlj-exceptions");
5479 break;
5480 case llvm::ExceptionHandling::WinEH:
5481 CmdArgs.push_back("-fseh-exceptions");
5482 break;
5483 }
5484 }
5485
5486 // C++ "sane" operator new.
5487 if (!Args.hasFlag(options::OPT_fassume_sane_operator_new,
5488 options::OPT_fno_assume_sane_operator_new))
5489 CmdArgs.push_back("-fno-assume-sane-operator-new");
5490
5491 // -frelaxed-template-template-args is off by default, as it is a severe
5492 // breaking change until a corresponding change to template partial ordering
5493 // is provided.
5494 if (Args.hasFlag(options::OPT_frelaxed_template_template_args,
5495 options::OPT_fno_relaxed_template_template_args, false))
5496 CmdArgs.push_back("-frelaxed-template-template-args");
5497
5498 // -fsized-deallocation is off by default, as it is an ABI-breaking change for
5499 // most platforms.
5500 if (Args.hasFlag(options::OPT_fsized_deallocation,
5501 options::OPT_fno_sized_deallocation, false))
5502 CmdArgs.push_back("-fsized-deallocation");
5503
5504 // -faligned-allocation is on by default in C++17 onwards and otherwise off
5505 // by default.
5506 if (Arg *A = Args.getLastArg(options::OPT_faligned_allocation,
5507 options::OPT_fno_aligned_allocation,
5508 options::OPT_faligned_new_EQ)) {
5509 if (A->getOption().matches(options::OPT_fno_aligned_allocation))
5510 CmdArgs.push_back("-fno-aligned-allocation");
5511 else
5512 CmdArgs.push_back("-faligned-allocation");
5513 }
5514
5515 // The default new alignment can be specified using a dedicated option or via
5516 // a GCC-compatible option that also turns on aligned allocation.
5517 if (Arg *A = Args.getLastArg(options::OPT_fnew_alignment_EQ,
5518 options::OPT_faligned_new_EQ))
5519 CmdArgs.push_back(
5520 Args.MakeArgString(Twine("-fnew-alignment=") + A->getValue()));
5521
5522 // -fconstant-cfstrings is default, and may be subject to argument translation
5523 // on Darwin.
5524 if (!Args.hasFlag(options::OPT_fconstant_cfstrings,
5525 options::OPT_fno_constant_cfstrings) ||
5526 !Args.hasFlag(options::OPT_mconstant_cfstrings,
5527 options::OPT_mno_constant_cfstrings))
5528 CmdArgs.push_back("-fno-constant-cfstrings");
5529
5530 // -fno-pascal-strings is default, only pass non-default.
5531 if (Args.hasFlag(options::OPT_fpascal_strings,
5532 options::OPT_fno_pascal_strings, false))
5533 CmdArgs.push_back("-fpascal-strings");
5534
5535 // Honor -fpack-struct= and -fpack-struct, if given. Note that
5536 // -fno-pack-struct doesn't apply to -fpack-struct=.
5537 if (Arg *A = Args.getLastArg(options::OPT_fpack_struct_EQ)) {
5538 std::string PackStructStr = "-fpack-struct=";
5539 PackStructStr += A->getValue();
5540 CmdArgs.push_back(Args.MakeArgString(PackStructStr));
5541 } else if (Args.hasFlag(options::OPT_fpack_struct,
5542 options::OPT_fno_pack_struct, false)) {
5543 CmdArgs.push_back("-fpack-struct=1");
5544 }
5545
5546 // Handle -fmax-type-align=N and -fno-type-align
5547 bool SkipMaxTypeAlign = Args.hasArg(options::OPT_fno_max_type_align);
5548 if (Arg *A = Args.getLastArg(options::OPT_fmax_type_align_EQ)) {
5549 if (!SkipMaxTypeAlign) {
5550 std::string MaxTypeAlignStr = "-fmax-type-align=";
5551 MaxTypeAlignStr += A->getValue();
5552 CmdArgs.push_back(Args.MakeArgString(MaxTypeAlignStr));
5553 }
5554 } else if (RawTriple.isOSDarwin()) {
5555 if (!SkipMaxTypeAlign) {
5556 std::string MaxTypeAlignStr = "-fmax-type-align=16";
5557 CmdArgs.push_back(Args.MakeArgString(MaxTypeAlignStr));
5558 }
5559 }
5560
5561 if (!Args.hasFlag(options::OPT_Qy, options::OPT_Qn, true))
5562 CmdArgs.push_back("-Qn");
5563
5564 // -fcommon is the default unless compiling kernel code or the target says so
5565 bool NoCommonDefault = KernelOrKext || isNoCommonDefault(RawTriple);
5566 if (!Args.hasFlag(options::OPT_fcommon, options::OPT_fno_common,
5567 !NoCommonDefault))
5568 CmdArgs.push_back("-fno-common");
5569
5570 // -fsigned-bitfields is default, and clang doesn't yet support
5571 // -funsigned-bitfields.
5572 if (!Args.hasFlag(options::OPT_fsigned_bitfields,
5573 options::OPT_funsigned_bitfields))
5574 D.Diag(diag::warn_drv_clang_unsupported)
5575 << Args.getLastArg(options::OPT_funsigned_bitfields)->getAsString(Args);
5576
5577 // -fsigned-bitfields is default, and clang doesn't support -fno-for-scope.
5578 if (!Args.hasFlag(options::OPT_ffor_scope, options::OPT_fno_for_scope))
5579 D.Diag(diag::err_drv_clang_unsupported)
5580 << Args.getLastArg(options::OPT_fno_for_scope)->getAsString(Args);
5581
5582 // -finput_charset=UTF-8 is default. Reject others
5583 if (Arg *inputCharset = Args.getLastArg(options::OPT_finput_charset_EQ)) {
5584 StringRef value = inputCharset->getValue();
5585 if (!value.equals_lower("utf-8"))
5586 D.Diag(diag::err_drv_invalid_value) << inputCharset->getAsString(Args)
5587 << value;
5588 }
5589
5590 // -fexec_charset=UTF-8 is default. Reject others
5591 if (Arg *execCharset = Args.getLastArg(options::OPT_fexec_charset_EQ)) {
5592 StringRef value = execCharset->getValue();
5593 if (!value.equals_lower("utf-8"))
5594 D.Diag(diag::err_drv_invalid_value) << execCharset->getAsString(Args)
5595 << value;
5596 }
5597
5598 RenderDiagnosticsOptions(D, Args, CmdArgs);
5599
5600 // -fno-asm-blocks is default.
5601 if (Args.hasFlag(options::OPT_fasm_blocks, options::OPT_fno_asm_blocks,
5602 false))
5603 CmdArgs.push_back("-fasm-blocks");
5604
5605 // -fgnu-inline-asm is default.
5606 if (!Args.hasFlag(options::OPT_fgnu_inline_asm,
5607 options::OPT_fno_gnu_inline_asm, true))
5608 CmdArgs.push_back("-fno-gnu-inline-asm");
5609
5610 // Enable vectorization per default according to the optimization level
5611 // selected. For optimization levels that want vectorization we use the alias
5612 // option to simplify the hasFlag logic.
5613 bool EnableVec = shouldEnableVectorizerAtOLevel(Args, false);
5614 OptSpecifier VectorizeAliasOption =
5615 EnableVec ? options::OPT_O_Group : options::OPT_fvectorize;
5616 if (Args.hasFlag(options::OPT_fvectorize, VectorizeAliasOption,
5617 options::OPT_fno_vectorize, EnableVec))
5618 CmdArgs.push_back("-vectorize-loops");
5619
5620 // -fslp-vectorize is enabled based on the optimization level selected.
5621 bool EnableSLPVec = shouldEnableVectorizerAtOLevel(Args, true);
5622 OptSpecifier SLPVectAliasOption =
5623 EnableSLPVec ? options::OPT_O_Group : options::OPT_fslp_vectorize;
5624 if (Args.hasFlag(options::OPT_fslp_vectorize, SLPVectAliasOption,
5625 options::OPT_fno_slp_vectorize, EnableSLPVec))
5626 CmdArgs.push_back("-vectorize-slp");
5627
5628 ParseMPreferVectorWidth(D, Args, CmdArgs);
5629
5630 Args.AddLastArg(CmdArgs, options::OPT_fshow_overloads_EQ);
5631 Args.AddLastArg(CmdArgs,
5632 options::OPT_fsanitize_undefined_strip_path_components_EQ);
5633
5634 // -fdollars-in-identifiers default varies depending on platform and
5635 // language; only pass if specified.
5636 if (Arg *A = Args.getLastArg(options::OPT_fdollars_in_identifiers,
5637 options::OPT_fno_dollars_in_identifiers)) {
5638 if (A->getOption().matches(options::OPT_fdollars_in_identifiers))
5639 CmdArgs.push_back("-fdollars-in-identifiers");
5640 else
5641 CmdArgs.push_back("-fno-dollars-in-identifiers");
5642 }
5643
5644 // -funit-at-a-time is default, and we don't support -fno-unit-at-a-time for
5645 // practical purposes.
5646 if (Arg *A = Args.getLastArg(options::OPT_funit_at_a_time,
5647 options::OPT_fno_unit_at_a_time)) {
5648 if (A->getOption().matches(options::OPT_fno_unit_at_a_time))
5649 D.Diag(diag::warn_drv_clang_unsupported) << A->getAsString(Args);
5650 }
5651
5652 if (Args.hasFlag(options::OPT_fapple_pragma_pack,
5653 options::OPT_fno_apple_pragma_pack, false))
5654 CmdArgs.push_back("-fapple-pragma-pack");
5655
5656 // Remarks can be enabled with any of the `-f.*optimization-record.*` flags.
5657 if (willEmitRemarks(Args) && checkRemarksOptions(D, Args, Triple))
5658 renderRemarksOptions(Args, CmdArgs, Triple, Input, Output, JA);
5659
5660 bool RewriteImports = Args.hasFlag(options::OPT_frewrite_imports,
5661 options::OPT_fno_rewrite_imports, false);
5662 if (RewriteImports)
5663 CmdArgs.push_back("-frewrite-imports");
5664
5665 // Enable rewrite includes if the user's asked for it or if we're generating
5666 // diagnostics.
5667 // TODO: Once -module-dependency-dir works with -frewrite-includes it'd be
5668 // nice to enable this when doing a crashdump for modules as well.
5669 if (Args.hasFlag(options::OPT_frewrite_includes,
5670 options::OPT_fno_rewrite_includes, false) ||
5671 (C.isForDiagnostics() && !HaveModules))
5672 CmdArgs.push_back("-frewrite-includes");
5673
5674 // Only allow -traditional or -traditional-cpp outside in preprocessing modes.
5675 if (Arg *A = Args.getLastArg(options::OPT_traditional,
5676 options::OPT_traditional_cpp)) {
5677 if (isa<PreprocessJobAction>(JA))
5678 CmdArgs.push_back("-traditional-cpp");
5679 else
5680 D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args);
5681 }
5682
5683 Args.AddLastArg(CmdArgs, options::OPT_dM);
5684 Args.AddLastArg(CmdArgs, options::OPT_dD);
5685
5686 // Handle serialized diagnostics.
5687 if (Arg *A = Args.getLastArg(options::OPT__serialize_diags)) {
5688 CmdArgs.push_back("-serialize-diagnostic-file");
5689 CmdArgs.push_back(Args.MakeArgString(A->getValue()));
5690 }
5691
5692 if (Args.hasArg(options::OPT_fretain_comments_from_system_headers))
5693 CmdArgs.push_back("-fretain-comments-from-system-headers");
5694
5695 // Forward -fcomment-block-commands to -cc1.
5696 Args.AddAllArgs(CmdArgs, options::OPT_fcomment_block_commands);
5697 // Forward -fparse-all-comments to -cc1.
5698 Args.AddAllArgs(CmdArgs, options::OPT_fparse_all_comments);
5699
5700 // Turn -fplugin=name.so into -load name.so
5701 for (const Arg *A : Args.filtered(options::OPT_fplugin_EQ)) {
5702 CmdArgs.push_back("-load");
5703 CmdArgs.push_back(A->getValue());
5704 A->claim();
5705 }
5706
5707 // Forward -fpass-plugin=name.so to -cc1.
5708 for (const Arg *A : Args.filtered(options::OPT_fpass_plugin_EQ)) {
5709 CmdArgs.push_back(
5710 Args.MakeArgString(Twine("-fpass-plugin=") + A->getValue()));
5711 A->claim();
5712 }
5713
5714 // Setup statistics file output.
5715 SmallString<128> StatsFile = getStatsFileName(Args, Output, Input, D);
5716 if (!StatsFile.empty())
5717 CmdArgs.push_back(Args.MakeArgString(Twine("-stats-file=") + StatsFile));
5718
5719 // Forward -Xclang arguments to -cc1, and -mllvm arguments to the LLVM option
5720 // parser.
5721 // -finclude-default-header flag is for preprocessor,
5722 // do not pass it to other cc1 commands when save-temps is enabled
5723 if (C.getDriver().isSaveTempsEnabled() &&
5724 !isa<PreprocessJobAction>(JA)) {
5725 for (auto Arg : Args.filtered(options::OPT_Xclang)) {
5726 Arg->claim();
5727 if (StringRef(Arg->getValue()) != "-finclude-default-header")
5728 CmdArgs.push_back(Arg->getValue());
5729 }
5730 }
5731 else {
5732 Args.AddAllArgValues(CmdArgs, options::OPT_Xclang);
5733 }
5734 for (const Arg *A : Args.filtered(options::OPT_mllvm)) {
5735 A->claim();
5736
5737 // We translate this by hand to the -cc1 argument, since nightly test uses
5738 // it and developers have been trained to spell it with -mllvm. Both
5739 // spellings are now deprecated and should be removed.
5740 if (StringRef(A->getValue(0)) == "-disable-llvm-optzns") {
5741 CmdArgs.push_back("-disable-llvm-optzns");
5742 } else {
5743 A->render(Args, CmdArgs);
5744 }
5745 }
5746
5747 // With -save-temps, we want to save the unoptimized bitcode output from the
5748 // CompileJobAction, use -disable-llvm-passes to get pristine IR generated
5749 // by the frontend.
5750 // When -fembed-bitcode is enabled, optimized bitcode is emitted because it
5751 // has slightly different breakdown between stages.
5752 // FIXME: -fembed-bitcode -save-temps will save optimized bitcode instead of
5753 // pristine IR generated by the frontend. Ideally, a new compile action should
5754 // be added so both IR can be captured.
5755 if (C.getDriver().isSaveTempsEnabled() &&
5756 !(C.getDriver().embedBitcodeInObject() && !C.getDriver().isUsingLTO()) &&
5757 isa<CompileJobAction>(JA))
5758 CmdArgs.push_back("-disable-llvm-passes");
5759
5760 Args.AddAllArgs(CmdArgs, options::OPT_undef);
5761
5762 const char *Exec = D.getClangProgramPath();
5763
5764 // Optionally embed the -cc1 level arguments into the debug info or a
5765 // section, for build analysis.
5766 // Also record command line arguments into the debug info if
5767 // -grecord-gcc-switches options is set on.
5768 // By default, -gno-record-gcc-switches is set on and no recording.
5769 auto GRecordSwitches =
5770 Args.hasFlag(options::OPT_grecord_command_line,
5771 options::OPT_gno_record_command_line, false);
5772 auto FRecordSwitches =
5773 Args.hasFlag(options::OPT_frecord_command_line,
5774 options::OPT_fno_record_command_line, false);
5775 if (FRecordSwitches && !Triple.isOSBinFormatELF())
5776 D.Diag(diag::err_drv_unsupported_opt_for_target)
5777 << Args.getLastArg(options::OPT_frecord_command_line)->getAsString(Args)
5778 << TripleStr;
5779 if (TC.UseDwarfDebugFlags() || GRecordSwitches || FRecordSwitches) {
5780 ArgStringList OriginalArgs;
5781 for (const auto &Arg : Args)
5782 Arg->render(Args, OriginalArgs);
5783
5784 SmallString<256> Flags;
5785 Flags += Exec;
5786 for (const char *OriginalArg : OriginalArgs) {
5787 SmallString<128> EscapedArg;
5788 EscapeSpacesAndBackslashes(OriginalArg, EscapedArg);
5789 Flags += " ";
5790 Flags += EscapedArg;
5791 }
5792 auto FlagsArgString = Args.MakeArgString(Flags);
5793 if (TC.UseDwarfDebugFlags() || GRecordSwitches) {
5794 CmdArgs.push_back("-dwarf-debug-flags");
5795 CmdArgs.push_back(FlagsArgString);
5796 }
5797 if (FRecordSwitches) {
5798 CmdArgs.push_back("-record-command-line");
5799 CmdArgs.push_back(FlagsArgString);
5800 }
5801 }
5802
5803 // Host-side cuda compilation receives all device-side outputs in a single
5804 // fatbin as Inputs[1]. Include the binary with -fcuda-include-gpubinary.
5805 if ((IsCuda || IsHIP) && CudaDeviceInput) {
5806 CmdArgs.push_back("-fcuda-include-gpubinary");
5807 CmdArgs.push_back(CudaDeviceInput->getFilename());
5808 if (Args.hasFlag(options::OPT_fgpu_rdc, options::OPT_fno_gpu_rdc, false))
5809 CmdArgs.push_back("-fgpu-rdc");
5810 }
5811
5812 if (IsCuda) {
5813 if (Args.hasFlag(options::OPT_fcuda_short_ptr,
5814 options::OPT_fno_cuda_short_ptr, false))
5815 CmdArgs.push_back("-fcuda-short-ptr");
5816 }
5817
5818 if (IsHIP)
5819 CmdArgs.push_back("-fcuda-allow-variadic-functions");
5820
5821 // OpenMP offloading device jobs take the argument -fopenmp-host-ir-file-path
5822 // to specify the result of the compile phase on the host, so the meaningful
5823 // device declarations can be identified. Also, -fopenmp-is-device is passed
5824 // along to tell the frontend that it is generating code for a device, so that
5825 // only the relevant declarations are emitted.
5826 if (IsOpenMPDevice) {
5827 CmdArgs.push_back("-fopenmp-is-device");
5828 if (OpenMPDeviceInput) {
5829 CmdArgs.push_back("-fopenmp-host-ir-file-path");
5830 CmdArgs.push_back(Args.MakeArgString(OpenMPDeviceInput->getFilename()));
5831 }
5832 }
5833
5834 // For all the host OpenMP offloading compile jobs we need to pass the targets
5835 // information using -fopenmp-targets= option.
5836 if (JA.isHostOffloading(Action::OFK_OpenMP)) {
5837 SmallString<128> TargetInfo("-fopenmp-targets=");
5838
5839 Arg *Tgts = Args.getLastArg(options::OPT_fopenmp_targets_EQ);
5840 assert(Tgts && Tgts->getNumValues() &&
5841 "OpenMP offloading has to have targets specified.");
5842 for (unsigned i = 0; i < Tgts->getNumValues(); ++i) {
5843 if (i)
5844 TargetInfo += ',';
5845 // We need to get the string from the triple because it may be not exactly
5846 // the same as the one we get directly from the arguments.
5847 llvm::Triple T(Tgts->getValue(i));
5848 TargetInfo += T.getTriple();
5849 }
5850 CmdArgs.push_back(Args.MakeArgString(TargetInfo.str()));
5851 }
5852
5853 bool VirtualFunctionElimination =
5854 Args.hasFlag(options::OPT_fvirtual_function_elimination,
5855 options::OPT_fno_virtual_function_elimination, false);
5856 if (VirtualFunctionElimination) {
5857 // VFE requires full LTO (currently, this might be relaxed to allow ThinLTO
5858 // in the future).
5859 if (D.getLTOMode() != LTOK_Full)
5860 D.Diag(diag::err_drv_argument_only_allowed_with)
5861 << "-fvirtual-function-elimination"
5862 << "-flto=full";
5863
5864 CmdArgs.push_back("-fvirtual-function-elimination");
5865 }
5866
5867 // VFE requires whole-program-vtables, and enables it by default.
5868 bool WholeProgramVTables = Args.hasFlag(
5869 options::OPT_fwhole_program_vtables,
5870 options::OPT_fno_whole_program_vtables, VirtualFunctionElimination);
5871 if (VirtualFunctionElimination && !WholeProgramVTables) {
5872 D.Diag(diag::err_drv_argument_not_allowed_with)
5873 << "-fno-whole-program-vtables"
5874 << "-fvirtual-function-elimination";
5875 }
5876
5877 if (WholeProgramVTables) {
5878 if (!D.isUsingLTO())
5879 D.Diag(diag::err_drv_argument_only_allowed_with)
5880 << "-fwhole-program-vtables"
5881 << "-flto";
5882 CmdArgs.push_back("-fwhole-program-vtables");
5883 }
5884
5885 bool DefaultsSplitLTOUnit =
5886 (WholeProgramVTables || Sanitize.needsLTO()) &&
5887 (D.getLTOMode() == LTOK_Full || TC.canSplitThinLTOUnit());
5888 bool SplitLTOUnit =
5889 Args.hasFlag(options::OPT_fsplit_lto_unit,
5890 options::OPT_fno_split_lto_unit, DefaultsSplitLTOUnit);
5891 if (Sanitize.needsLTO() && !SplitLTOUnit)
5892 D.Diag(diag::err_drv_argument_not_allowed_with) << "-fno-split-lto-unit"
5893 << "-fsanitize=cfi";
5894 if (SplitLTOUnit)
5895 CmdArgs.push_back("-fsplit-lto-unit");
5896
5897 if (Arg *A = Args.getLastArg(options::OPT_fexperimental_isel,
5898 options::OPT_fno_experimental_isel)) {
5899 CmdArgs.push_back("-mllvm");
5900 if (A->getOption().matches(options::OPT_fexperimental_isel)) {
5901 CmdArgs.push_back("-global-isel=1");
5902
5903 // GISel is on by default on AArch64 -O0, so don't bother adding
5904 // the fallback remarks for it. Other combinations will add a warning of
5905 // some kind.
5906 bool IsArchSupported = Triple.getArch() == llvm::Triple::aarch64;
5907 bool IsOptLevelSupported = false;
5908
5909 Arg *A = Args.getLastArg(options::OPT_O_Group);
5910 if (Triple.getArch() == llvm::Triple::aarch64) {
5911 if (!A || A->getOption().matches(options::OPT_O0))
5912 IsOptLevelSupported = true;
5913 }
5914 if (!IsArchSupported || !IsOptLevelSupported) {
5915 CmdArgs.push_back("-mllvm");
5916 CmdArgs.push_back("-global-isel-abort=2");
5917
5918 if (!IsArchSupported)
5919 D.Diag(diag::warn_drv_experimental_isel_incomplete) << Triple.getArchName();
5920 else
5921 D.Diag(diag::warn_drv_experimental_isel_incomplete_opt);
5922 }
5923 } else {
5924 CmdArgs.push_back("-global-isel=0");
5925 }
5926 }
5927
5928 if (Args.hasArg(options::OPT_forder_file_instrumentation)) {
5929 CmdArgs.push_back("-forder-file-instrumentation");
5930 // Enable order file instrumentation when ThinLTO is not on. When ThinLTO is
5931 // on, we need to pass these flags as linker flags and that will be handled
5932 // outside of the compiler.
5933 if (!D.isUsingLTO()) {
5934 CmdArgs.push_back("-mllvm");
5935 CmdArgs.push_back("-enable-order-file-instrumentation");
5936 }
5937 }
5938
5939 if (Arg *A = Args.getLastArg(options::OPT_fforce_enable_int128,
5940 options::OPT_fno_force_enable_int128)) {
5941 if (A->getOption().matches(options::OPT_fforce_enable_int128))
5942 CmdArgs.push_back("-fforce-enable-int128");
5943 }
5944
5945 if (Args.hasFlag(options::OPT_fcomplete_member_pointers,
5946 options::OPT_fno_complete_member_pointers, false))
5947 CmdArgs.push_back("-fcomplete-member-pointers");
5948
5949 if (!Args.hasFlag(options::OPT_fcxx_static_destructors,
5950 options::OPT_fno_cxx_static_destructors, true))
5951 CmdArgs.push_back("-fno-c++-static-destructors");
5952
5953 if (Arg *A = Args.getLastArg(options::OPT_moutline,
5954 options::OPT_mno_outline)) {
5955 if (A->getOption().matches(options::OPT_moutline)) {
5956 // We only support -moutline in AArch64 right now. If we're not compiling
5957 // for AArch64, emit a warning and ignore the flag. Otherwise, add the
5958 // proper mllvm flags.
5959 if (Triple.getArch() != llvm::Triple::aarch64 &&
5960 Triple.getArch() != llvm::Triple::aarch64_32) {
5961 D.Diag(diag::warn_drv_moutline_unsupported_opt) << Triple.getArchName();
5962 } else {
5963 CmdArgs.push_back("-mllvm");
5964 CmdArgs.push_back("-enable-machine-outliner");
5965 }
5966 } else {
5967 // Disable all outlining behaviour.
5968 CmdArgs.push_back("-mllvm");
5969 CmdArgs.push_back("-enable-machine-outliner=never");
5970 }
5971 }
5972
5973 if (Args.hasFlag(options::OPT_faddrsig, options::OPT_fno_addrsig,
5974 (TC.getTriple().isOSBinFormatELF() ||
5975 TC.getTriple().isOSBinFormatCOFF()) &&
5976 !TC.getTriple().isPS4() &&
5977 !TC.getTriple().isOSNetBSD() &&
5978 !Distro(D.getVFS(), TC.getTriple()).IsGentoo() &&
5979 !TC.getTriple().isAndroid() &&
5980 TC.useIntegratedAs()))
5981 CmdArgs.push_back("-faddrsig");
5982
5983 if (Arg *A = Args.getLastArg(options::OPT_fsymbol_partition_EQ)) {
5984 std::string Str = A->getAsString(Args);
5985 if (!TC.getTriple().isOSBinFormatELF())
5986 D.Diag(diag::err_drv_unsupported_opt_for_target)
5987 << Str << TC.getTripleString();
5988 CmdArgs.push_back(Args.MakeArgString(Str));
5989 }
5990
5991 // Add the "-o out -x type src.c" flags last. This is done primarily to make
5992 // the -cc1 command easier to edit when reproducing compiler crashes.
5993 if (Output.getType() == types::TY_Dependencies) {
5994 // Handled with other dependency code.
5995 } else if (Output.isFilename()) {
5996 if (Output.getType() == clang::driver::types::TY_IFS_CPP ||
5997 Output.getType() == clang::driver::types::TY_IFS) {
5998 SmallString<128> OutputFilename(Output.getFilename());
5999 llvm::sys::path::replace_extension(OutputFilename, "ifs");
6000 CmdArgs.push_back("-o");
6001 CmdArgs.push_back(Args.MakeArgString(OutputFilename));
6002 } else {
6003 CmdArgs.push_back("-o");
6004 CmdArgs.push_back(Output.getFilename());
6005 }
6006 } else {
6007 assert(Output.isNothing() && "Invalid output.");
6008 }
6009
6010 addDashXForInput(Args, Input, CmdArgs);
6011
6012 ArrayRef<InputInfo> FrontendInputs = Input;
6013 if (IsHeaderModulePrecompile)
6014 FrontendInputs = ModuleHeaderInputs;
6015 else if (Input.isNothing())
6016 FrontendInputs = {};
6017
6018 for (const InputInfo &Input : FrontendInputs) {
6019 if (Input.isFilename())
6020 CmdArgs.push_back(Input.getFilename());
6021 else
6022 Input.getInputArg().renderAsInput(Args, CmdArgs);
6023 }
6024
6025 // Finally add the compile command to the compilation.
6026 if (Args.hasArg(options::OPT__SLASH_fallback) &&
6027 Output.getType() == types::TY_Object &&
6028 (InputType == types::TY_C || InputType == types::TY_CXX)) {
6029 auto CLCommand =
6030 getCLFallback()->GetCommand(C, JA, Output, Inputs, Args, LinkingOutput);
6031 C.addCommand(std::make_unique<FallbackCommand>(
6032 JA, *this, Exec, CmdArgs, Inputs, std::move(CLCommand)));
6033 } else if (Args.hasArg(options::OPT__SLASH_fallback) &&
6034 isa<PrecompileJobAction>(JA)) {
6035 // In /fallback builds, run the main compilation even if the pch generation
6036 // fails, so that the main compilation's fallback to cl.exe runs.
6037 C.addCommand(std::make_unique<ForceSuccessCommand>(JA, *this, Exec,
6038 CmdArgs, Inputs));
6039 } else if (D.CC1Main && !D.CCGenDiagnostics) {
6040 // Invoke the CC1 directly in this process
6041 C.addCommand(
6042 std::make_unique<CC1Command>(JA, *this, Exec, CmdArgs, Inputs));
6043 } else {
6044 C.addCommand(std::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
6045 }
6046
6047 // Make the compile command echo its inputs for /showFilenames.
6048 if (Output.getType() == types::TY_Object &&
6049 Args.hasFlag(options::OPT__SLASH_showFilenames,
6050 options::OPT__SLASH_showFilenames_, false)) {
6051 C.getJobs().getJobs().back()->setPrintInputFilenames(true);
6052 }
6053
6054 if (Arg *A = Args.getLastArg(options::OPT_pg))
6055 if (FPKeepKind == CodeGenOptions::FramePointerKind::None)
6056 D.Diag(diag::err_drv_argument_not_allowed_with) << "-fomit-frame-pointer"
6057 << A->getAsString(Args);
6058
6059 // Claim some arguments which clang supports automatically.
6060
6061 // -fpch-preprocess is used with gcc to add a special marker in the output to
6062 // include the PCH file.
6063 Args.ClaimAllArgs(options::OPT_fpch_preprocess);
6064
6065 // Claim some arguments which clang doesn't support, but we don't
6066 // care to warn the user about.
6067 Args.ClaimAllArgs(options::OPT_clang_ignored_f_Group);
6068 Args.ClaimAllArgs(options::OPT_clang_ignored_m_Group);
6069
6070 // Disable warnings for clang -E -emit-llvm foo.c
6071 Args.ClaimAllArgs(options::OPT_emit_llvm);
6072 }
6073
6074 Clang::Clang(const ToolChain &TC)
6075 // CAUTION! The first constructor argument ("clang") is not arbitrary,
6076 // as it is for other tools. Some operations on a Tool actually test
6077 // whether that tool is Clang based on the Tool's Name as a string.
6078 : Tool("clang", "clang frontend", TC, RF_Full) {}
6079
6080 Clang::~Clang() {}
6081
6082 /// Add options related to the Objective-C runtime/ABI.
6083 ///
6084 /// Returns true if the runtime is non-fragile.
6085 ObjCRuntime Clang::AddObjCRuntimeArgs(const ArgList &args,
6086 ArgStringList &cmdArgs,
6087 RewriteKind rewriteKind) const {
6088 // Look for the controlling runtime option.
6089 Arg *runtimeArg =
6090 args.getLastArg(options::OPT_fnext_runtime, options::OPT_fgnu_runtime,
6091 options::OPT_fobjc_runtime_EQ);
6092
6093 // Just forward -fobjc-runtime= to the frontend. This supercedes
6094 // options about fragility.
6095 if (runtimeArg &&
6096 runtimeArg->getOption().matches(options::OPT_fobjc_runtime_EQ)) {
6097 ObjCRuntime runtime;
6098 StringRef value = runtimeArg->getValue();
6099 if (runtime.tryParse(value)) {
6100 getToolChain().getDriver().Diag(diag::err_drv_unknown_objc_runtime)
6101 << value;
6102 }
6103 if ((runtime.getKind() == ObjCRuntime::GNUstep) &&
6104 (runtime.getVersion() >= VersionTuple(2, 0)))
6105 if (!getToolChain().getTriple().isOSBinFormatELF() &&
6106 !getToolChain().getTriple().isOSBinFormatCOFF()) {
6107 getToolChain().getDriver().Diag(
6108 diag::err_drv_gnustep_objc_runtime_incompatible_binary)
6109 << runtime.getVersion().getMajor();
6110 }
6111
6112 runtimeArg->render(args, cmdArgs);
6113 return runtime;
6114 }
6115
6116 // Otherwise, we'll need the ABI "version". Version numbers are
6117 // slightly confusing for historical reasons:
6118 // 1 - Traditional "fragile" ABI
6119 // 2 - Non-fragile ABI, version 1
6120 // 3 - Non-fragile ABI, version 2
6121 unsigned objcABIVersion = 1;
6122 // If -fobjc-abi-version= is present, use that to set the version.
6123 if (Arg *abiArg = args.getLastArg(options::OPT_fobjc_abi_version_EQ)) {
6124 StringRef value = abiArg->getValue();
6125 if (value == "1")
6126 objcABIVersion = 1;
6127 else if (value == "2")
6128 objcABIVersion = 2;
6129 else if (value == "3")
6130 objcABIVersion = 3;
6131 else
6132 getToolChain().getDriver().Diag(diag::err_drv_clang_unsupported) << value;
6133 } else {
6134 // Otherwise, determine if we are using the non-fragile ABI.
6135 bool nonFragileABIIsDefault =
6136 (rewriteKind == RK_NonFragile ||
6137 (rewriteKind == RK_None &&
6138 getToolChain().IsObjCNonFragileABIDefault()));
6139 if (args.hasFlag(options::OPT_fobjc_nonfragile_abi,
6140 options::OPT_fno_objc_nonfragile_abi,
6141 nonFragileABIIsDefault)) {
6142 // Determine the non-fragile ABI version to use.
6143 #ifdef DISABLE_DEFAULT_NONFRAGILEABI_TWO
6144 unsigned nonFragileABIVersion = 1;
6145 #else
6146 unsigned nonFragileABIVersion = 2;
6147 #endif
6148
6149 if (Arg *abiArg =
6150 args.getLastArg(options::OPT_fobjc_nonfragile_abi_version_EQ)) {
6151 StringRef value = abiArg->getValue();
6152 if (value == "1")
6153 nonFragileABIVersion = 1;
6154 else if (value == "2")
6155 nonFragileABIVersion = 2;
6156 else
6157 getToolChain().getDriver().Diag(diag::err_drv_clang_unsupported)
6158 << value;
6159 }
6160
6161 objcABIVersion = 1 + nonFragileABIVersion;
6162 } else {
6163 objcABIVersion = 1;
6164 }
6165 }
6166
6167 // We don't actually care about the ABI version other than whether
6168 // it's non-fragile.
6169 bool isNonFragile = objcABIVersion != 1;
6170
6171 // If we have no runtime argument, ask the toolchain for its default runtime.
6172 // However, the rewriter only really supports the Mac runtime, so assume that.
6173 ObjCRuntime runtime;
6174 if (!runtimeArg) {
6175 switch (rewriteKind) {
6176 case RK_None:
6177 runtime = getToolChain().getDefaultObjCRuntime(isNonFragile);
6178 break;
6179 case RK_Fragile:
6180 runtime = ObjCRuntime(ObjCRuntime::FragileMacOSX, VersionTuple());
6181 break;
6182 case RK_NonFragile:
6183 runtime = ObjCRuntime(ObjCRuntime::MacOSX, VersionTuple());
6184 break;
6185 }
6186
6187 // -fnext-runtime
6188 } else if (runtimeArg->getOption().matches(options::OPT_fnext_runtime)) {
6189 // On Darwin, make this use the default behavior for the toolchain.
6190 if (getToolChain().getTriple().isOSDarwin()) {
6191 runtime = getToolChain().getDefaultObjCRuntime(isNonFragile);
6192
6193 // Otherwise, build for a generic macosx port.
6194 } else {
6195 runtime = ObjCRuntime(ObjCRuntime::MacOSX, VersionTuple());
6196 }
6197
6198 // -fgnu-runtime
6199 } else {
6200 assert(runtimeArg->getOption().matches(options::OPT_fgnu_runtime));
6201 // Legacy behaviour is to target the gnustep runtime if we are in
6202 // non-fragile mode or the GCC runtime in fragile mode.
6203 if (isNonFragile)
6204 runtime = ObjCRuntime(ObjCRuntime::GNUstep, VersionTuple(2, 0));
6205 else
6206 runtime = ObjCRuntime(ObjCRuntime::GCC, VersionTuple());
6207 }
6208
6209 cmdArgs.push_back(
6210 args.MakeArgString("-fobjc-runtime=" + runtime.getAsString()));
6211 return runtime;
6212 }
6213
6214 static bool maybeConsumeDash(const std::string &EH, size_t &I) {
6215 bool HaveDash = (I + 1 < EH.size() && EH[I + 1] == '-');
6216 I += HaveDash;
6217 return !HaveDash;
6218 }
6219
6220 namespace {
6221 struct EHFlags {
6222 bool Synch = false;
6223 bool Asynch = false;
6224 bool NoUnwindC = false;
6225 };
6226 } // end anonymous namespace
6227
6228 /// /EH controls whether to run destructor cleanups when exceptions are
6229 /// thrown. There are three modifiers:
6230 /// - s: Cleanup after "synchronous" exceptions, aka C++ exceptions.
6231 /// - a: Cleanup after "asynchronous" exceptions, aka structured exceptions.
6232 /// The 'a' modifier is unimplemented and fundamentally hard in LLVM IR.
6233 /// - c: Assume that extern "C" functions are implicitly nounwind.
6234 /// The default is /EHs-c-, meaning cleanups are disabled.
6235 static EHFlags parseClangCLEHFlags(const Driver &D, const ArgList &Args) {
6236 EHFlags EH;
6237
6238 std::vector<std::string> EHArgs =
6239 Args.getAllArgValues(options::OPT__SLASH_EH);
6240 for (auto EHVal : EHArgs) {
6241 for (size_t I = 0, E = EHVal.size(); I != E; ++I) {
6242 switch (EHVal[I]) {
6243 case 'a':
6244 EH.Asynch = maybeConsumeDash(EHVal, I);
6245 if (EH.Asynch)
6246 EH.Synch = false;
6247 continue;
6248 case 'c':
6249 EH.NoUnwindC = maybeConsumeDash(EHVal, I);
6250 continue;
6251 case 's':
6252 EH.Synch = maybeConsumeDash(EHVal, I);
6253 if (EH.Synch)
6254 EH.Asynch = false;
6255 continue;
6256 default:
6257 break;
6258 }
6259 D.Diag(clang::diag::err_drv_invalid_value) << "/EH" << EHVal;
6260 break;
6261 }
6262 }
6263 // The /GX, /GX- flags are only processed if there are not /EH flags.
6264 // The default is that /GX is not specified.
6265 if (EHArgs.empty() &&
6266 Args.hasFlag(options::OPT__SLASH_GX, options::OPT__SLASH_GX_,
6267 /*Default=*/false)) {
6268 EH.Synch = true;
6269 EH.NoUnwindC = true;
6270 }
6271
6272 return EH;
6273 }
6274
6275 void Clang::AddClangCLArgs(const ArgList &Args, types::ID InputType,
6276 ArgStringList &CmdArgs,
6277 codegenoptions::DebugInfoKind *DebugInfoKind,
6278 bool *EmitCodeView) const {
6279 unsigned RTOptionID = options::OPT__SLASH_MT;
6280
6281 if (Args.hasArg(options::OPT__SLASH_LDd))
6282 // The /LDd option implies /MTd. The dependent lib part can be overridden,
6283 // but defining _DEBUG is sticky.
6284 RTOptionID = options::OPT__SLASH_MTd;
6285
6286 if (Arg *A = Args.getLastArg(options::OPT__SLASH_M_Group))
6287 RTOptionID = A->getOption().getID();
6288
6289 StringRef FlagForCRT;
6290 switch (RTOptionID) {
6291 case options::OPT__SLASH_MD:
6292 if (Args.hasArg(options::OPT__SLASH_LDd))
6293 CmdArgs.push_back("-D_DEBUG");
6294 CmdArgs.push_back("-D_MT");
6295 CmdArgs.push_back("-D_DLL");
6296 FlagForCRT = "--dependent-lib=msvcrt";
6297 break;
6298 case options::OPT__SLASH_MDd:
6299 CmdArgs.push_back("-D_DEBUG");
6300 CmdArgs.push_back("-D_MT");
6301 CmdArgs.push_back("-D_DLL");
6302 FlagForCRT = "--dependent-lib=msvcrtd";
6303 break;
6304 case options::OPT__SLASH_MT:
6305 if (Args.hasArg(options::OPT__SLASH_LDd))
6306 CmdArgs.push_back("-D_DEBUG");
6307 CmdArgs.push_back("-D_MT");
6308 CmdArgs.push_back("-flto-visibility-public-std");
6309 FlagForCRT = "--dependent-lib=libcmt";
6310 break;
6311 case options::OPT__SLASH_MTd:
6312 CmdArgs.push_back("-D_DEBUG");
6313 CmdArgs.push_back("-D_MT");
6314 CmdArgs.push_back("-flto-visibility-public-std");
6315 FlagForCRT = "--dependent-lib=libcmtd";
6316 break;
6317 default:
6318 llvm_unreachable("Unexpected option ID.");
6319 }
6320
6321 if (Args.hasArg(options::OPT__SLASH_Zl)) {
6322 CmdArgs.push_back("-D_VC_NODEFAULTLIB");
6323 } else {
6324 CmdArgs.push_back(FlagForCRT.data());
6325
6326 // This provides POSIX compatibility (maps 'open' to '_open'), which most
6327 // users want. The /Za flag to cl.exe turns this off, but it's not
6328 // implemented in clang.
6329 CmdArgs.push_back("--dependent-lib=oldnames");
6330 }
6331
6332 Args.AddLastArg(CmdArgs, options::OPT_show_includes);
6333
6334 // This controls whether or not we emit RTTI data for polymorphic types.
6335 if (Args.hasFlag(options::OPT__SLASH_GR_, options::OPT__SLASH_GR,
6336 /*Default=*/false))
6337 CmdArgs.push_back("-fno-rtti-data");
6338
6339 // This controls whether or not we emit stack-protector instrumentation.
6340 // In MSVC, Buffer Security Check (/GS) is on by default.
6341 if (Args.hasFlag(options::OPT__SLASH_GS, options::OPT__SLASH_GS_,
6342 /*Default=*/true)) {
6343 CmdArgs.push_back("-stack-protector");
6344 CmdArgs.push_back(Args.MakeArgString(Twine(LangOptions::SSPStrong)));
6345 }
6346
6347 // Emit CodeView if -Z7, -Zd, or -gline-tables-only are present.
6348 if (Arg *DebugInfoArg =
6349 Args.getLastArg(options::OPT__SLASH_Z7, options::OPT__SLASH_Zd,
6350 options::OPT_gline_tables_only)) {
6351 *EmitCodeView = true;
6352 if (DebugInfoArg->getOption().matches(options::OPT__SLASH_Z7))
6353 *DebugInfoKind = codegenoptions::LimitedDebugInfo;
6354 else
6355 *DebugInfoKind = codegenoptions::DebugLineTablesOnly;
6356 } else {
6357 *EmitCodeView = false;
6358 }
6359
6360 const Driver &D = getToolChain().getDriver();
6361 EHFlags EH = parseClangCLEHFlags(D, Args);
6362 if (EH.Synch || EH.Asynch) {
6363 if (types::isCXX(InputType))
6364 CmdArgs.push_back("-fcxx-exceptions");
6365 CmdArgs.push_back("-fexceptions");
6366 }
6367 if (types::isCXX(InputType) && EH.Synch && EH.NoUnwindC)
6368 CmdArgs.push_back("-fexternc-nounwind");
6369
6370 // /EP should expand to -E -P.
6371 if (Args.hasArg(options::OPT__SLASH_EP)) {
6372 CmdArgs.push_back("-E");
6373 CmdArgs.push_back("-P");
6374 }
6375
6376 unsigned VolatileOptionID;
6377 if (getToolChain().getTriple().isX86())
6378 VolatileOptionID = options::OPT__SLASH_volatile_ms;
6379 else
6380 VolatileOptionID = options::OPT__SLASH_volatile_iso;
6381
6382 if (Arg *A = Args.getLastArg(options::OPT__SLASH_volatile_Group))
6383 VolatileOptionID = A->getOption().getID();
6384
6385 if (VolatileOptionID == options::OPT__SLASH_volatile_ms)
6386 CmdArgs.push_back("-fms-volatile");
6387
6388 if (Args.hasFlag(options::OPT__SLASH_Zc_dllexportInlines_,
6389 options::OPT__SLASH_Zc_dllexportInlines,
6390 false)) {
6391 if (Args.hasArg(options::OPT__SLASH_fallback)) {
6392 D.Diag(clang::diag::err_drv_dllexport_inlines_and_fallback);
6393 } else {
6394 CmdArgs.push_back("-fno-dllexport-inlines");
6395 }
6396 }
6397
6398 Arg *MostGeneralArg = Args.getLastArg(options::OPT__SLASH_vmg);
6399 Arg *BestCaseArg = Args.getLastArg(options::OPT__SLASH_vmb);
6400 if (MostGeneralArg && BestCaseArg)
6401 D.Diag(clang::diag::err_drv_argument_not_allowed_with)
6402 << MostGeneralArg->getAsString(Args) << BestCaseArg->getAsString(Args);
6403
6404 if (MostGeneralArg) {
6405 Arg *SingleArg = Args.getLastArg(options::OPT__SLASH_vms);
6406 Arg *MultipleArg = Args.getLastArg(options::OPT__SLASH_vmm);
6407 Arg *VirtualArg = Args.getLastArg(options::OPT__SLASH_vmv);
6408
6409 Arg *FirstConflict = SingleArg ? SingleArg : MultipleArg;
6410 Arg *SecondConflict = VirtualArg ? VirtualArg : MultipleArg;
6411 if (FirstConflict && SecondConflict && FirstConflict != SecondConflict)
6412 D.Diag(clang::diag::err_drv_argument_not_allowed_with)
6413 << FirstConflict->getAsString(Args)
6414 << SecondConflict->getAsString(Args);
6415
6416 if (SingleArg)
6417 CmdArgs.push_back("-fms-memptr-rep=single");
6418 else if (MultipleArg)
6419 CmdArgs.push_back("-fms-memptr-rep=multiple");
6420 else
6421 CmdArgs.push_back("-fms-memptr-rep=virtual");
6422 }
6423
6424 // Parse the default calling convention options.
6425 if (Arg *CCArg =
6426 Args.getLastArg(options::OPT__SLASH_Gd, options::OPT__SLASH_Gr,
6427 options::OPT__SLASH_Gz, options::OPT__SLASH_Gv,
6428 options::OPT__SLASH_Gregcall)) {
6429 unsigned DCCOptId = CCArg->getOption().getID();
6430 const char *DCCFlag = nullptr;
6431 bool ArchSupported = true;
6432 llvm::Triple::ArchType Arch = getToolChain().getArch();
6433 switch (DCCOptId) {
6434 case options::OPT__SLASH_Gd:
6435 DCCFlag = "-fdefault-calling-conv=cdecl";
6436 break;
6437 case options::OPT__SLASH_Gr:
6438 ArchSupported = Arch == llvm::Triple::x86;
6439 DCCFlag = "-fdefault-calling-conv=fastcall";
6440 break;
6441 case options::OPT__SLASH_Gz:
6442 ArchSupported = Arch == llvm::Triple::x86;
6443 DCCFlag = "-fdefault-calling-conv=stdcall";
6444 break;
6445 case options::OPT__SLASH_Gv:
6446 ArchSupported = Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64;
6447 DCCFlag = "-fdefault-calling-conv=vectorcall";
6448 break;
6449 case options::OPT__SLASH_Gregcall:
6450 ArchSupported = Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64;
6451 DCCFlag = "-fdefault-calling-conv=regcall";
6452 break;
6453 }
6454
6455 // MSVC doesn't warn if /Gr or /Gz is used on x64, so we don't either.
6456 if (ArchSupported && DCCFlag)
6457 CmdArgs.push_back(DCCFlag);
6458 }
6459
6460 Args.AddLastArg(CmdArgs, options::OPT_vtordisp_mode_EQ);
6461
6462 if (!Args.hasArg(options::OPT_fdiagnostics_format_EQ)) {
6463 CmdArgs.push_back("-fdiagnostics-format");
6464 if (Args.hasArg(options::OPT__SLASH_fallback))
6465 CmdArgs.push_back("msvc-fallback");
6466 else
6467 CmdArgs.push_back("msvc");
6468 }
6469
6470 if (Arg *A = Args.getLastArg(options::OPT__SLASH_guard)) {
6471 StringRef GuardArgs = A->getValue();
6472 // The only valid options are "cf", "cf,nochecks", and "cf-".
6473 if (GuardArgs.equals_lower("cf")) {
6474 // Emit CFG instrumentation and the table of address-taken functions.
6475 CmdArgs.push_back("-cfguard");
6476 } else if (GuardArgs.equals_lower("cf,nochecks")) {
6477 // Emit only the table of address-taken functions.
6478 CmdArgs.push_back("-cfguard-no-checks");
6479 } else if (GuardArgs.equals_lower("cf-")) {
6480 // Do nothing, but we might want to emit a security warning in future.
6481 } else {
6482 D.Diag(diag::err_drv_invalid_value) << A->getSpelling() << GuardArgs;
6483 }
6484 }
6485 }
6486
6487 visualstudio::Compiler *Clang::getCLFallback() const {
6488 if (!CLFallback)
6489 CLFallback.reset(new visualstudio::Compiler(getToolChain()));
6490 return CLFallback.get();
6491 }
6492
6493
6494 const char *Clang::getBaseInputName(const ArgList &Args,
6495 const InputInfo &Input) {
6496 return Args.MakeArgString(llvm::sys::path::filename(Input.getBaseInput()));
6497 }
6498
6499 const char *Clang::getBaseInputStem(const ArgList &Args,
6500 const InputInfoList &Inputs) {
6501 const char *Str = getBaseInputName(Args, Inputs[0]);
6502
6503 if (const char *End = strrchr(Str, '.'))
6504 return Args.MakeArgString(std::string(Str, End));
6505
6506 return Str;
6507 }
6508
6509 const char *Clang::getDependencyFileName(const ArgList &Args,
6510 const InputInfoList &Inputs) {
6511 // FIXME: Think about this more.
6512
6513 if (Arg *OutputOpt = Args.getLastArg(options::OPT_o)) {
6514 SmallString<128> OutputFilename(OutputOpt->getValue());
6515 llvm::sys::path::replace_extension(OutputFilename, llvm::Twine('d'));
6516 return Args.MakeArgString(OutputFilename);
6517 }
6518
6519 return Args.MakeArgString(Twine(getBaseInputStem(Args, Inputs)) + ".d");
6520 }
6521
6522 // Begin ClangAs
6523
6524 void ClangAs::AddMIPSTargetArgs(const ArgList &Args,
6525 ArgStringList &CmdArgs) const {
6526 StringRef CPUName;
6527 StringRef ABIName;
6528 const llvm::Triple &Triple = getToolChain().getTriple();
6529 mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName);
6530
6531 CmdArgs.push_back("-target-abi");
6532 CmdArgs.push_back(ABIName.data());
6533 }
6534
6535 void ClangAs::AddX86TargetArgs(const ArgList &Args,
6536 ArgStringList &CmdArgs) const {
6537 addX86AlignBranchArgs(getToolChain().getDriver(), Args, CmdArgs);
6538
6539 if (Arg *A = Args.getLastArg(options::OPT_masm_EQ)) {
6540 StringRef Value = A->getValue();
6541 if (Value == "intel" || Value == "att") {
6542 CmdArgs.push_back("-mllvm");
6543 CmdArgs.push_back(Args.MakeArgString("-x86-asm-syntax=" + Value));
6544 } else {
6545 getToolChain().getDriver().Diag(diag::err_drv_unsupported_option_argument)
6546 << A->getOption().getName() << Value;
6547 }
6548 }
6549 }
6550
6551 void ClangAs::AddRISCVTargetArgs(const ArgList &Args,
6552 ArgStringList &CmdArgs) const {
6553 const llvm::Triple &Triple = getToolChain().getTriple();
6554 StringRef ABIName = riscv::getRISCVABI(Args, Triple);
6555
6556 CmdArgs.push_back("-target-abi");
6557 CmdArgs.push_back(ABIName.data());
6558 }
6559
6560 void ClangAs::ConstructJob(Compilation &C, const JobAction &JA,
6561 const InputInfo &Output, const InputInfoList &Inputs,
6562 const ArgList &Args,
6563 const char *LinkingOutput) const {
6564 ArgStringList CmdArgs;
6565
6566 assert(Inputs.size() == 1 && "Unexpected number of inputs.");
6567 const InputInfo &Input = Inputs[0];
6568
6569 const llvm::Triple &Triple = getToolChain().getEffectiveTriple();
6570 const std::string &TripleStr = Triple.getTriple();
6571 const auto &D = getToolChain().getDriver();
6572
6573 // Don't warn about "clang -w -c foo.s"
6574 Args.ClaimAllArgs(options::OPT_w);
6575 // and "clang -emit-llvm -c foo.s"
6576 Args.ClaimAllArgs(options::OPT_emit_llvm);
6577
6578 claimNoWarnArgs(Args);
6579
6580 // Invoke ourselves in -cc1as mode.
6581 //
6582 // FIXME: Implement custom jobs for internal actions.
6583 CmdArgs.push_back("-cc1as");
6584
6585 // Add the "effective" target triple.
6586 CmdArgs.push_back("-triple");
6587 CmdArgs.push_back(Args.MakeArgString(TripleStr));
6588
6589 // Set the output mode, we currently only expect to be used as a real
6590 // assembler.
6591 CmdArgs.push_back("-filetype");
6592 CmdArgs.push_back("obj");
6593
6594 // Set the main file name, so that debug info works even with
6595 // -save-temps or preprocessed assembly.
6596 CmdArgs.push_back("-main-file-name");
6597 CmdArgs.push_back(Clang::getBaseInputName(Args, Input));
6598
6599 // Add the target cpu
6600 std::string CPU = getCPUName(Args, Triple, /*FromAs*/ true);
6601 if (!CPU.empty()) {
6602 CmdArgs.push_back("-target-cpu");
6603 CmdArgs.push_back(Args.MakeArgString(CPU));
6604 }
6605
6606 // Add the target features
6607 getTargetFeatures(getToolChain(), Triple, Args, CmdArgs, true);
6608
6609 // Ignore explicit -force_cpusubtype_ALL option.
6610 (void)Args.hasArg(options::OPT_force__cpusubtype__ALL);
6611
6612 // Pass along any -I options so we get proper .include search paths.
6613 Args.AddAllArgs(CmdArgs, options::OPT_I_Group);
6614
6615 // Determine the original source input.
6616 const Action *SourceAction = &JA;
6617 while (SourceAction->getKind() != Action::InputClass) {
6618 assert(!SourceAction->getInputs().empty() && "unexpected root action!");
6619 SourceAction = SourceAction->getInputs()[0];
6620 }
6621
6622 // Forward -g and handle debug info related flags, assuming we are dealing
6623 // with an actual assembly file.
6624 bool WantDebug = false;
6625 unsigned DwarfVersion = 0;
6626 Args.ClaimAllArgs(options::OPT_g_Group);
6627 if (Arg *A = Args.getLastArg(options::OPT_g_Group)) {
6628 WantDebug = !A->getOption().matches(options::OPT_g0) &&
6629 !A->getOption().matches(options::OPT_ggdb0);
6630 if (WantDebug)
6631 DwarfVersion = DwarfVersionNum(A->getSpelling());
6632 }
6633
6634 unsigned DefaultDwarfVersion = ParseDebugDefaultVersion(getToolChain(), Args);
6635 if (DwarfVersion == 0)
6636 DwarfVersion = DefaultDwarfVersion;
6637
6638 if (DwarfVersion == 0)
6639 DwarfVersion = getToolChain().GetDefaultDwarfVersion();
6640
6641 codegenoptions::DebugInfoKind DebugInfoKind = codegenoptions::NoDebugInfo;
6642
6643 if (SourceAction->getType() == types::TY_Asm ||
6644 SourceAction->getType() == types::TY_PP_Asm) {
6645 // You might think that it would be ok to set DebugInfoKind outside of
6646 // the guard for source type, however there is a test which asserts
6647 // that some assembler invocation receives no -debug-info-kind,
6648 // and it's not clear whether that test is just overly restrictive.
6649 DebugInfoKind = (WantDebug ? codegenoptions::LimitedDebugInfo
6650 : codegenoptions::NoDebugInfo);
6651 // Add the -fdebug-compilation-dir flag if needed.
6652 addDebugCompDirArg(Args, CmdArgs, C.getDriver().getVFS());
6653
6654 addDebugPrefixMapArg(getToolChain().getDriver(), Args, CmdArgs);
6655
6656 // Set the AT_producer to the clang version when using the integrated
6657 // assembler on assembly source files.
6658 CmdArgs.push_back("-dwarf-debug-producer");
6659 CmdArgs.push_back(Args.MakeArgString(getClangFullVersion()));
6660
6661 // And pass along -I options
6662 Args.AddAllArgs(CmdArgs, options::OPT_I);
6663 }
6664 RenderDebugEnablingArgs(Args, CmdArgs, DebugInfoKind, DwarfVersion,
6665 llvm::DebuggerKind::Default);
6666 RenderDebugInfoCompressionArgs(Args, CmdArgs, D, getToolChain());
6667
6668
6669 // Handle -fPIC et al -- the relocation-model affects the assembler
6670 // for some targets.
6671 llvm::Reloc::Model RelocationModel;
6672 unsigned PICLevel;
6673 bool IsPIE;
6674 std::tie(RelocationModel, PICLevel, IsPIE) =
6675 ParsePICArgs(getToolChain(), Args);
6676
6677 const char *RMName = RelocationModelName(RelocationModel);
6678 if (RMName) {
6679 CmdArgs.push_back("-mrelocation-model");
6680 CmdArgs.push_back(RMName);
6681 }
6682
6683 // Optionally embed the -cc1as level arguments into the debug info, for build
6684 // analysis.
6685 if (getToolChain().UseDwarfDebugFlags()) {
6686 ArgStringList OriginalArgs;
6687 for (const auto &Arg : Args)
6688 Arg->render(Args, OriginalArgs);
6689
6690 SmallString<256> Flags;
6691 const char *Exec = getToolChain().getDriver().getClangProgramPath();
6692 Flags += Exec;
6693 for (const char *OriginalArg : OriginalArgs) {
6694 SmallString<128> EscapedArg;
6695 EscapeSpacesAndBackslashes(OriginalArg, EscapedArg);
6696 Flags += " ";
6697 Flags += EscapedArg;
6698 }
6699 CmdArgs.push_back("-dwarf-debug-flags");
6700 CmdArgs.push_back(Args.MakeArgString(Flags));
6701 }
6702
6703 // FIXME: Add -static support, once we have it.
6704
6705 // Add target specific flags.
6706 switch (getToolChain().getArch()) {
6707 default:
6708 break;
6709
6710 case llvm::Triple::mips:
6711 case llvm::Triple::mipsel:
6712 case llvm::Triple::mips64:
6713 case llvm::Triple::mips64el:
6714 AddMIPSTargetArgs(Args, CmdArgs);
6715 break;
6716
6717 case llvm::Triple::x86:
6718 case llvm::Triple::x86_64:
6719 AddX86TargetArgs(Args, CmdArgs);
6720 break;
6721
6722 case llvm::Triple::arm:
6723 case llvm::Triple::armeb:
6724 case llvm::Triple::thumb:
6725 case llvm::Triple::thumbeb:
6726 // This isn't in AddARMTargetArgs because we want to do this for assembly
6727 // only, not C/C++.
6728 if (Args.hasFlag(options::OPT_mdefault_build_attributes,
6729 options::OPT_mno_default_build_attributes, true)) {
6730 CmdArgs.push_back("-mllvm");
6731 CmdArgs.push_back("-arm-add-build-attributes");
6732 }
6733 break;
6734
6735 case llvm::Triple::riscv32:
6736 case llvm::Triple::riscv64:
6737 AddRISCVTargetArgs(Args, CmdArgs);
6738 break;
6739 }
6740
6741 // Consume all the warning flags. Usually this would be handled more
6742 // gracefully by -cc1 (warning about unknown warning flags, etc) but -cc1as
6743 // doesn't handle that so rather than warning about unused flags that are
6744 // actually used, we'll lie by omission instead.
6745 // FIXME: Stop lying and consume only the appropriate driver flags
6746 Args.ClaimAllArgs(options::OPT_W_Group);
6747
6748 CollectArgsForIntegratedAssembler(C, Args, CmdArgs,
6749 getToolChain().getDriver());
6750
6751 Args.AddAllArgs(CmdArgs, options::OPT_mllvm);
6752
6753 assert(Output.isFilename() && "Unexpected lipo output.");
6754 CmdArgs.push_back("-o");
6755 CmdArgs.push_back(Output.getFilename());
6756
6757 const llvm::Triple &T = getToolChain().getTriple();
6758 Arg *A;
6759 if (getDebugFissionKind(D, Args, A) == DwarfFissionKind::Split &&
6760 T.isOSBinFormatELF()) {
6761 CmdArgs.push_back("-split-dwarf-output");
6762 CmdArgs.push_back(SplitDebugName(Args, Input, Output));
6763 }
6764
6765 assert(Input.isFilename() && "Invalid input.");
6766 CmdArgs.push_back(Input.getFilename());
6767
6768 const char *Exec = getToolChain().getDriver().getClangProgramPath();
6769 C.addCommand(std::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
6770 }
6771
6772 // Begin OffloadBundler
6773
6774 void OffloadBundler::ConstructJob(Compilation &C, const JobAction &JA,
6775 const InputInfo &Output,
6776 const InputInfoList &Inputs,
6777 const llvm::opt::ArgList &TCArgs,
6778 const char *LinkingOutput) const {
6779 // The version with only one output is expected to refer to a bundling job.
6780 assert(isa<OffloadBundlingJobAction>(JA) && "Expecting bundling job!");
6781
6782 // The bundling command looks like this:
6783 // clang-offload-bundler -type=bc
6784 // -targets=host-triple,openmp-triple1,openmp-triple2
6785 // -outputs=input_file
6786 // -inputs=unbundle_file_host,unbundle_file_tgt1,unbundle_file_tgt2"
6787
6788 ArgStringList CmdArgs;
6789
6790 // Get the type.
6791 CmdArgs.push_back(TCArgs.MakeArgString(
6792 Twine("-type=") + types::getTypeTempSuffix(Output.getType())));
6793
6794 assert(JA.getInputs().size() == Inputs.size() &&
6795 "Not have inputs for all dependence actions??");
6796
6797 // Get the targets.
6798 SmallString<128> Triples;
6799 Triples += "-targets=";
6800 for (unsigned I = 0; I < Inputs.size(); ++I) {
6801 if (I)
6802 Triples += ',';
6803
6804 // Find ToolChain for this input.
6805 Action::OffloadKind CurKind = Action::OFK_Host;
6806 const ToolChain *CurTC = &getToolChain();
6807 const Action *CurDep = JA.getInputs()[I];
6808
6809 if (const auto *OA = dyn_cast<OffloadAction>(CurDep)) {
6810 CurTC = nullptr;
6811 OA->doOnEachDependence([&](Action *A, const ToolChain *TC, const char *) {
6812 assert(CurTC == nullptr && "Expected one dependence!");
6813 CurKind = A->getOffloadingDeviceKind();
6814 CurTC = TC;
6815 });
6816 }
6817 Triples += Action::GetOffloadKindName(CurKind);
6818 Triples += '-';
6819 Triples += CurTC->getTriple().normalize();
6820 if (CurKind == Action::OFK_HIP && CurDep->getOffloadingArch()) {
6821 Triples += '-';
6822 Triples += CurDep->getOffloadingArch();
6823 }
6824 }
6825 CmdArgs.push_back(TCArgs.MakeArgString(Triples));
6826
6827 // Get bundled file command.
6828 CmdArgs.push_back(
6829 TCArgs.MakeArgString(Twine("-outputs=") + Output.getFilename()));
6830
6831 // Get unbundled files command.
6832 SmallString<128> UB;
6833 UB += "-inputs=";
6834 for (unsigned I = 0; I < Inputs.size(); ++I) {
6835 if (I)
6836 UB += ',';
6837
6838 // Find ToolChain for this input.
6839 const ToolChain *CurTC = &getToolChain();
6840 if (const auto *OA = dyn_cast<OffloadAction>(JA.getInputs()[I])) {
6841 CurTC = nullptr;
6842 OA->doOnEachDependence([&](Action *, const ToolChain *TC, const char *) {
6843 assert(CurTC == nullptr && "Expected one dependence!");
6844 CurTC = TC;
6845 });
6846 }
6847 UB += CurTC->getInputFilename(Inputs[I]);
6848 }
6849 CmdArgs.push_back(TCArgs.MakeArgString(UB));
6850
6851 // All the inputs are encoded as commands.
6852 C.addCommand(std::make_unique<Command>(
6853 JA, *this,
6854 TCArgs.MakeArgString(getToolChain().GetProgramPath(getShortName())),
6855 CmdArgs, None));
6856 }
6857
6858 void OffloadBundler::ConstructJobMultipleOutputs(
6859 Compilation &C, const JobAction &JA, const InputInfoList &Outputs,
6860 const InputInfoList &Inputs, const llvm::opt::ArgList &TCArgs,
6861 const char *LinkingOutput) const {
6862 // The version with multiple outputs is expected to refer to a unbundling job.
6863 auto &UA = cast<OffloadUnbundlingJobAction>(JA);
6864
6865 // The unbundling command looks like this:
6866 // clang-offload-bundler -type=bc
6867 // -targets=host-triple,openmp-triple1,openmp-triple2
6868 // -inputs=input_file
6869 // -outputs=unbundle_file_host,unbundle_file_tgt1,unbundle_file_tgt2"
6870 // -unbundle
6871
6872 ArgStringList CmdArgs;
6873
6874 assert(Inputs.size() == 1 && "Expecting to unbundle a single file!");
6875 InputInfo Input = Inputs.front();
6876
6877 // Get the type.
6878 CmdArgs.push_back(TCArgs.MakeArgString(
6879 Twine("-type=") + types::getTypeTempSuffix(Input.getType())));
6880
6881 // Get the targets.
6882 SmallString<128> Triples;
6883 Triples += "-targets=";
6884 auto DepInfo = UA.getDependentActionsInfo();
6885 for (unsigned I = 0; I < DepInfo.size(); ++I) {
6886 if (I)
6887 Triples += ',';
6888
6889 auto &Dep = DepInfo[I];
6890 Triples += Action::GetOffloadKindName(Dep.DependentOffloadKind);
6891 Triples += '-';
6892 Triples += Dep.DependentToolChain->getTriple().normalize();
6893 if (Dep.DependentOffloadKind == Action::OFK_HIP &&
6894 !Dep.DependentBoundArch.empty()) {
6895 Triples += '-';
6896 Triples += Dep.DependentBoundArch;
6897 }
6898 }
6899
6900 CmdArgs.push_back(TCArgs.MakeArgString(Triples));
6901
6902 // Get bundled file command.
6903 CmdArgs.push_back(
6904 TCArgs.MakeArgString(Twine("-inputs=") + Input.getFilename()));
6905
6906 // Get unbundled files command.
6907 SmallString<128> UB;
6908 UB += "-outputs=";
6909 for (unsigned I = 0; I < Outputs.size(); ++I) {
6910 if (I)
6911 UB += ',';
6912 UB += DepInfo[I].DependentToolChain->getInputFilename(Outputs[I]);
6913 }
6914 CmdArgs.push_back(TCArgs.MakeArgString(UB));
6915 CmdArgs.push_back("-unbundle");
6916
6917 // All the inputs are encoded as commands.
6918 C.addCommand(std::make_unique<Command>(
6919 JA, *this,
6920 TCArgs.MakeArgString(getToolChain().GetProgramPath(getShortName())),
6921 CmdArgs, None));
6922 }
6923
6924 void OffloadWrapper::ConstructJob(Compilation &C, const JobAction &JA,
6925 const InputInfo &Output,
6926 const InputInfoList &Inputs,
6927 const ArgList &Args,
6928 const char *LinkingOutput) const {
6929 ArgStringList CmdArgs;
6930
6931 const llvm::Triple &Triple = getToolChain().getEffectiveTriple();
6932
6933 // Add the "effective" target triple.
6934 CmdArgs.push_back("-target");
6935 CmdArgs.push_back(Args.MakeArgString(Triple.getTriple()));
6936
6937 // Add the output file name.
6938 assert(Output.isFilename() && "Invalid output.");
6939 CmdArgs.push_back("-o");
6940 CmdArgs.push_back(Output.getFilename());
6941
6942 // Add inputs.
6943 for (const InputInfo &I : Inputs) {
6944 assert(I.isFilename() && "Invalid input.");
6945 CmdArgs.push_back(I.getFilename());
6946 }
6947
6948 C.addCommand(std::make_unique<Command>(
6949 JA, *this,
6950 Args.MakeArgString(getToolChain().GetProgramPath(getShortName())),
6951 CmdArgs, Inputs));
6952 }
clang::driver::Compilation::getSysRoot
StringRef getSysRoot() const
Returns the sysroot path.
Definition: Compilation.cpp:276
checkRemarksOptions
static bool checkRemarksOptions(const Driver &D, const ArgList &Args, const llvm::Triple &Triple)
Definition: Clang.cpp:1432
RenderCharacterOptions
static void RenderCharacterOptions(const ArgList &Args, const llvm::Triple &T, ArgStringList &CmdArgs)
Definition: Clang.cpp:3312
clang::driver::tools::aarch64::getAArch64TargetFeatures
void getAArch64TargetFeatures(const Driver &D, const llvm::Triple &Triple, const llvm::opt::ArgList &Args, std::vector< llvm::StringRef > &Features)
clang::driver::tools::arm::ReadTPMode::Soft
clang::codegenoptions::DebugInfoKind
DebugInfoKind
Definition: DebugInfoOptions.h:20
clang::driver::tools::Clang::getBaseInputName
static const char * getBaseInputName(const llvm::opt::ArgList &Args, const InputInfo &Input)
Definition: Clang.cpp:6494
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static bool hasMultipleInvocations(const llvm::Triple &Triple, const ArgList &Args)
Definition: Clang.cpp:1421
clang::driver::tools::handleTargetFeaturesGroup
void handleTargetFeaturesGroup(const llvm::opt::ArgList &Args, std::vector< StringRef > &Features, llvm::opt::OptSpecifier Group)
getTargetFeatures
static void getTargetFeatures(const ToolChain &TC, const llvm::Triple &Triple, const ArgList &Args, ArgStringList &CmdArgs, bool ForAS)
Definition: Clang.cpp:310
clang::driver::tools::OffloadBundler::ConstructJobMultipleOutputs
void ConstructJobMultipleOutputs(Compilation &C, const JobAction &JA, const InputInfoList &Outputs, const InputInfoList &Inputs, const llvm::opt::ArgList &TCArgs, const char *LinkingOutput) const override
Construct jobs to perform the action JA, writing to the Outputs and with Inputs, and add the jobs to ...
Definition: Clang.cpp:6858
useFramePointerForTargetByDefault
static bool useFramePointerForTargetByDefault(const ArgList &Args, const llvm::Triple &Triple)
Definition: Clang.cpp:523
clang::driver::ToolChain::AddClangCXXStdlibIsystemArgs
void AddClangCXXStdlibIsystemArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
AddClangCXXStdlibIsystemArgs - Add the clang -cc1 level arguments to set the specified include paths ...
Definition: ToolChain.cpp:873
ShouldEnableAutolink
static bool ShouldEnableAutolink(const ArgList &Args, const ToolChain &TC, const JobAction &JA)
Definition: Clang.cpp:471
clang::driver::Driver::getOpenMPRuntime
OpenMPRuntimeKind getOpenMPRuntime(const llvm::opt::ArgList &Args) const
Compute the desired OpenMP runtime from the flags provided.
Definition: Driver.cpp:581
clang::driver::tools::Clang::~Clang
~Clang() override
Definition: Clang.cpp:6080
clang::getClangFullVersion
std::string getClangFullVersion()
Retrieves a string representing the complete clang version, which includes the clang version number...
Definition: Version.cpp:117
clang::driver::ToolChain::getDefaultObjCRuntime
virtual ObjCRuntime getDefaultObjCRuntime(bool isNonFragile) const
getDefaultObjCRuntime - Return the default Objective-C runtime for this platform. ...
Definition: ToolChain.cpp:584
clang::driver::Driver::CCPrintHeaders
unsigned CCPrintHeaders
Set CC_PRINT_HEADERS mode, which causes the frontend to log header include information to CCPrintHead...
Definition: Driver.h:197
clang::driver::tools::PS4cpu::addProfileRTArgs
void addProfileRTArgs(const ToolChain &TC, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs)
clang::CudaVersion::UNKNOWN
Expected
llvm::Expected< T > Expected
Definition: ByteCodeExprGen.cpp:22
clang::driver::Action::OFK_OpenMP
Definition: Action.h:92
clang::driver::types::getTypeTempSuffix
const char * getTypeTempSuffix(ID Id, bool CLMode=false)
getTypeTempSuffix - Return the suffix to use when creating a temp file of this type, or null if unspecified.
Definition: Types.cpp:67
addExceptionArgs
static void addExceptionArgs(const ArgList &Args, types::ID InputType, const ToolChain &TC, bool KernelOrKext, const ObjCRuntime &objcRuntime, ArgStringList &CmdArgs)
Adds exception related arguments to the driver command arguments.
Definition: Clang.cpp:416
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bool isUseSeparateSections(const llvm::Triple &Triple)
Definition: CommonArgs.cpp:352
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Definition: ASTMatchersInternal.cpp:485
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FloatABI getSparcFloatABI(const Driver &D, const llvm::opt::ArgList &Args)
clang::driver::Driver::isUsingLTO
bool isUsingLTO() const
Returns true if we are performing any kind of LTO.
Definition: Driver.h:554
ObjCRuntime.h
Defines types useful for describing an Objective-C runtime.
clang::driver::ToolChain::AddClangCXXStdlibIncludeArgs
virtual void AddClangCXXStdlibIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
AddClangCXXStdlibIncludeArgs - Add the clang -cc1 level arguments to set the include paths to use for...
Definition: ToolChain.cpp:859
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input_range inputs()
Definition: Action.h:151
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Definition: DebugInfoOptions.h:17
clang::driver::Driver::embedBitcodeEnabled
bool embedBitcodeEnabled() const
Definition: Driver.h:350
clang::LangOptions::TrivialAutoVarInitKind::Zero
addDebugPrefixMapArg
static void addDebugPrefixMapArg(const Driver &D, const ArgList &Args, ArgStringList &CmdArgs)
Add a CC1 and CC1AS option to specify the debug file path prefix map.
Definition: Clang.cpp:632
forAllAssociatedToolChains
static void forAllAssociatedToolChains(Compilation &C, const JobAction &JA, const ToolChain &RegularToolChain, llvm::function_ref< void(const ToolChain &)> Work)
Apply Work on the current tool chain RegularToolChain and any other offloading tool chain that is ass...
Definition: Clang.cpp:124
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void getSystemZTargetFeatures(const llvm::opt::ArgList &Args, std::vector< llvm::StringRef > &Features)
clang::driver::SanitizerArgs::addArgs
void addArgs(const ToolChain &TC, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs, types::ID InputType) const
Definition: SanitizerArgs.cpp:894
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bool isHostOffloading(OffloadKind OKind) const
Check if this action have any offload kinds.
Definition: Action.h:203
CollectArgsForIntegratedAssembler
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Definition: Clang.cpp:2267
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LTOKind getLTOMode() const
Get the specific kind of LTO being performed.
Definition: Driver.h:557
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DiagnosticBuilder Diag(unsigned DiagID) const
Definition: Driver.h:109
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Definition: XRayArgs.h:21
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static void QuoteTarget(StringRef Target, SmallVectorImpl< char > &Res)
Definition: Clang.cpp:95
Value
Value
Definition: UninitializedValues.cpp:101
CheckPreprocessingOptions
static void CheckPreprocessingOptions(const Driver &D, const ArgList &Args)
Definition: Clang.cpp:54
clang::ObjCRuntime::GCC
&#39;gcc&#39; is the Objective-C runtime shipped with GCC, implementing a fragile Objective-C ABI ...
Definition: ObjCRuntime.h:52
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clang::driver::tools::sparc::FloatABI::Soft
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Definition: Compilation.h:202
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ID
Definition: Types.h:23
UseRelaxAll
static bool UseRelaxAll(Compilation &C, const ArgList &Args)
Check if -relax-all should be passed to the internal assembler.
Definition: Clang.cpp:959
clang::driver::tools::arm::getARMFloatABI
FloatABI getARMFloatABI(const ToolChain &TC, const llvm::opt::ArgList &Args)
clang::driver::tools::OffloadWrapper::ConstructJob
void ConstructJob(Compilation &C, const JobAction &JA, const InputInfo &Output, const InputInfoList &Inputs, const llvm::opt::ArgList &TCArgs, const char *LinkingOutput) const override
ConstructJob - Construct jobs to perform the action JA, writing to Output and with Inputs...
Definition: Clang.cpp:6924
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Definition: LangOptions.h:58
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static StringRef bytes(const std::vector< T, Allocator > &v)
Definition: ASTWriter.cpp:121
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Don&#39;t generate debug info.
Definition: DebugInfoOptions.h:22
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Definition: MSVC.h:39
PS4CPU.h
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FramePointerKind
Definition: CodeGenOptions.h:121
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DwarfFissionKind::Single
clang::driver::tools::getCPUName
std::string getCPUName(const llvm::opt::ArgList &Args, const llvm::Triple &T, bool FromAs=false)
clang::ObjCRuntime::FragileMacOSX
&#39;macosx-fragile&#39; is the Apple-provided NeXT-derived runtime on Mac OS X platforms that use the fragil...
Definition: ObjCRuntime.h:39
clang::driver::InputInfo::getFilename
const char * getFilename() const
Definition: InputInfo.h:83
SanitizerArgs.h
clang::driver::ToolChain::RM_Disabled
Definition: ToolChain.h:110
CommonArgs.h
clang::driver::ToolChain::AddClangSystemIncludeArgs
virtual void AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Add the clang cc1 arguments for system include paths.
Definition: ToolChain.cpp:737
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Definition: Action.h:375
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Distro - Helper class for detecting and classifying Linux distributions.
Definition: Distro.h:23
clang::driver::Driver::embedBitcodeMarkerOnly
bool embedBitcodeMarkerOnly() const
Definition: Driver.h:352
clang::driver::Action::getInputs
ActionList & getInputs()
Definition: Action.h:144
clang::driver::Driver::CCLogDiagnostics
unsigned CCLogDiagnostics
Set CC_LOG_DIAGNOSTICS mode, which causes the frontend to log diagnostics to CCLogDiagnosticsFilename...
Definition: Driver.h:202
clang::driver::ToolChain::GetDefaultStackProtectorLevel
virtual unsigned GetDefaultStackProtectorLevel(bool KernelOrKext) const
GetDefaultStackProtectorLevel - Get the default stack protector level for this tool chain (0=off...
Definition: ToolChain.h:362
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static void addPGOAndCoverageFlags(const ToolChain &TC, Compilation &C, const Driver &D, const InputInfo &Output, const ArgList &Args, ArgStringList &CmdArgs)
Definition: Clang.cpp:756
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Definition: ToolChain.h:93
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Definition: LangOptions.h:58
RenderFloatingPointOptions
static void RenderFloatingPointOptions(const ToolChain &TC, const Driver &D, bool OFastEnabled, const ArgList &Args, ArgStringList &CmdArgs)
Definition: Clang.cpp:2481
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bool isOffloading(OffloadKind OKind) const
Definition: Action.h:209
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clang::MSInheritanceModel::Single
clang::driver::Driver::GetClPchPath
std::string GetClPchPath(Compilation &C, StringRef BaseName) const
Return the pathname of the pch file in clang-cl mode.
Definition: Driver.cpp:4766
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Action - Represent an abstract compilation step to perform.
Definition: Action.h:47
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Definition: SanitizerArgs.h:23
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static const char * RelocationModelName(llvm::Reloc::Model Model)
Definition: Clang.cpp:1075
clang::ObjCRuntime::isNonFragile
bool isNonFragile() const
Does this runtime follow the set of implied behaviors for a "non-fragile" ABI?
Definition: ObjCRuntime.h:81
llvm::Expected
Definition: LLVM.h:38
clang::ObjCRuntime::isNeXTFamily
bool isNeXTFamily() const
Is this runtime basically of the NeXT family of runtimes?
Definition: ObjCRuntime.h:134
clang::driver::tools
Definition: AIX.h:17
Sparc.h
clang::driver::ToolChain::getTripleString
std::string getTripleString() const
Definition: ToolChain.h:224
clang::driver::Action::InputClass
Definition: Action.h:56
clang::codegenoptions::DebugDirectivesOnly
Emit only debug directives with the line numbers data.
Definition: DebugInfoOptions.h:31
clang::driver::InputInfo
InputInfo - Wrapper for information about an input source.
Definition: InputInfo.h:22
addDashXForInput
static void addDashXForInput(const ArgList &Args, const InputInfo &Input, ArgStringList &CmdArgs)
Add -x lang to CmdArgs for Input.
Definition: Clang.cpp:694
clang::driver::Action::getType
types::ID getType() const
Definition: Action.h:142
clang::driver::Action::isDeviceOffloading
bool isDeviceOffloading(OffloadKind OKind) const
Definition: Action.h:206
clang::driver::isOptimizationLevelFast
bool isOptimizationLevelFast(const llvm::opt::ArgList &Args)
clang::driver::Driver::OMPRT_OMP
The LLVM OpenMP runtime.
Definition: Driver.h:95
clang::Scope
Scope - A scope is a transient data structure that is used while parsing the program.
Definition: Scope.h:40
clang::driver::Action::getOffloadingDeviceKind
OffloadKind getOffloadingDeviceKind() const
Definition: Action.h:198
RenderSSPOptions
static void RenderSSPOptions(const ToolChain &TC, const ArgList &Args, ArgStringList &CmdArgs, bool KernelOrKext)
Definition: Clang.cpp:2912
clang::driver::tools::ppc::getPPCFloatABI
FloatABI getPPCFloatABI(const Driver &D, const llvm::opt::ArgList &Args)
clang::driver::Driver
Driver - Encapsulate logic for constructing compilation processes from a set of gcc-driver-like comma...
Definition: Driver.h:59
clang::driver::InputInfo::getType
types::ID getType() const
Definition: InputInfo.h:77
clang::driver::tools::sparc::FloatABI::Hard
clang::driver::XRayArgs::addArgs
void addArgs(const ToolChain &TC, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs, types::ID InputType) const
Definition: XRayArgs.cpp:188
ARM.h
clang::driver::Action::OFK_None
Definition: Action.h:85
clang::driver::tools::ppc::FloatABI
FloatABI
Definition: PPC.h:25
clang::driver::tools::OffloadBundler::ConstructJob
void ConstructJob(Compilation &C, const JobAction &JA, const InputInfo &Output, const InputInfoList &Inputs, const llvm::opt::ArgList &TCArgs, const char *LinkingOutput) const override
ConstructJob - Construct jobs to perform the action JA, writing to Output and with Inputs...
Definition: Clang.cpp:6774
clang::driver::tools::amdgpu::getAMDGPUTargetFeatures
void getAMDGPUTargetFeatures(const Driver &D, const llvm::opt::ArgList &Args, std::vector< StringRef > &Features)
Definition: AMDGPU.cpp:38
clang::driver::tools::arm::FloatABI
FloatABI
Definition: ARM.h:43
clang::driver::tools::SplitDebugName
const char * SplitDebugName(const llvm::opt::ArgList &Args, const InputInfo &Input, const InputInfo &Output)
llvm::ArrayRef
Definition: LLVM.h:31
llvm::SmallString< 128 >
RenderDebugInfoCompressionArgs
static void RenderDebugInfoCompressionArgs(const ArgList &Args, ArgStringList &CmdArgs, const Driver &D, const ToolChain &TC)
Definition: Clang.cpp:1042
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void AddX86TargetArgs(const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs) const
Definition: Clang.cpp:6535
clang::LangOptions::TrivialAutoVarInitKind::Uninitialized
RISCV.h
clang::driver::ToolChain::adjustDebugInfoKind
virtual void adjustDebugInfoKind(codegenoptions::DebugInfoKind &DebugInfoKind, const llvm::opt::ArgList &Args) const
Adjust debug information kind considering all passed options.
Definition: ToolChain.h:472
clang::driver::Driver::getVFS
llvm::vfs::FileSystem & getVFS() const
Definition: Driver.h:319
clang::driver::tools::addDirectoryList
void addDirectoryList(const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs, const char *ArgName, const char *EnvVar)
CharInfo.h
clang::driver::Action::OFK_HIP
Definition: Action.h:93
clang::driver::Action::OFK_Host
Definition: Action.h:88
Distro.h
clang::driver::types::getPreprocessedType
ID getPreprocessedType(ID Id)
getPreprocessedType - Get the ID of the type for this input when it has been preprocessed, or INVALID if this input is not preprocessed.
Definition: Types.cpp:47
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const char * CudaVersionToString(CudaVersion V)
Definition: Cuda.cpp:11
clang::driver::toolchains::CudaToolChain
Definition: Cuda.h:133
DwarfFissionKind::None
RenderARCMigrateToolOptions
static void RenderARCMigrateToolOptions(const Driver &D, const ArgList &Args, ArgStringList &CmdArgs)
Definition: Clang.cpp:3030
clang::driver::tools::riscv::getRISCVABI
StringRef getRISCVABI(const llvm::opt::ArgList &Args, const llvm::Triple &Triple)
Filename
StringRef Filename
Definition: Format.cpp:1825
clang::driver::Compilation::getDefaultToolChain
const ToolChain & getDefaultToolChain() const
Definition: Compilation.h:135
clang::driver::ToolChain::useRelaxRelocations
virtual bool useRelaxRelocations() const
Check whether to enable x86 relax relocations by default.
Definition: ToolChain.cpp:109
clang::driver::Driver::getDefaultModuleCachePath
static void getDefaultModuleCachePath(SmallVectorImpl< char > &Result)
Compute the default -fmodule-cache-path.
Definition: Clang.cpp:3139
Offset
unsigned Offset
Definition: Format.cpp:1827
clang::TargetInfo
Exposes information about the current target.
Definition: TargetInfo.h:164
clang::driver::ToolChain::useIntegratedAs
virtual bool useIntegratedAs() const
Check if the toolchain should use the integrated assembler.
Definition: ToolChain.cpp:103
RenderBuiltinOptions
static void RenderBuiltinOptions(const ToolChain &TC, const llvm::Triple &T, const ArgList &Args, ArgStringList &CmdArgs)
Definition: Clang.cpp:3102
clang::driver::types::getTypeName
const char * getTypeName(ID Id)
getTypeName - Return the name of the type for Id.
Definition: Types.cpp:43
clang::driver::Driver::getDiags
const DiagnosticsEngine & getDiags() const
Definition: Driver.h:317
clang::driver::Compilation::isForDiagnostics
bool isForDiagnostics() const
Return true if we&#39;re compiling for diagnostics.
Definition: Compilation.h:295
RenderDebugEnablingArgs
static void RenderDebugEnablingArgs(const ArgList &Args, ArgStringList &CmdArgs, codegenoptions::DebugInfoKind DebugInfoKind, unsigned DwarfVersion, llvm::DebuggerKind DebuggerTuning)
Definition: Clang.cpp:991
LangOptions.h
Defines the clang::LangOptions interface.
clang::driver::Action::getKind
ActionClass getKind() const
Definition: Action.h:141
clang::driver::tools::arm::FloatABI::Hard
End
SourceLocation End
Definition: USRLocFinder.cpp:166
llvm::opt
Definition: Action.h:23
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Limit generated debug info to reduce size (-fno-standalone-debug).
Definition: DebugInfoOptions.h:46
getWebAssemblyTargetFeatures
static void getWebAssemblyTargetFeatures(const ArgList &Args, std::vector< StringRef > &Features)
Definition: Clang.cpp:305
clang::ObjCRuntime::MacOSX
&#39;macosx&#39; is the Apple-provided NeXT-derived runtime on Mac OS X platforms that use the non-fragile AB...
Definition: ObjCRuntime.h:34
clang::ObjCRuntime::getAsString
std::string getAsString() const
Definition: ObjCRuntime.cpp:23
ParseMPreferVectorWidth
static void ParseMPreferVectorWidth(const Driver &D, const ArgList &Args, ArgStringList &CmdArgs)
The -mprefer-vector-width option accepts either a positive integer or the string "none".
Definition: Clang.cpp:286
clang::driver::Driver::CC1Main
CC1ToolFunc CC1Main
Definition: Driver.h:212
renderRemarksOptions
static void renderRemarksOptions(const ArgList &Args, ArgStringList &CmdArgs, const llvm::Triple &Triple, const InputInfo &Input, const InputInfo &Output, const JobAction &JA)
Definition: Clang.cpp:1448
clang::driver::ToolChain::getEffectiveTriple
const llvm::Triple & getEffectiveTriple() const
Get the toolchain&#39;s effective clang triple.
Definition: ToolChain.h:229
V
#define V(N, I)
Definition: ASTContext.h:2941
DwarfVersionNum
static unsigned DwarfVersionNum(StringRef ArgValue)
Definition: Clang.cpp:982
Version.h
Defines version macros and version-related utility functions for Clang.
clang::ObjCRuntime::tryParse
bool tryParse(StringRef input)
Try to parse an Objective-C runtime specification from the given string.
Definition: ObjCRuntime.cpp:48
addX86AlignBranchArgs
static void addX86AlignBranchArgs(const Driver &D, const ArgList &Args, ArgStringList &CmdArgs)
Definition: Clang.cpp:2018
clang::driver::ToolChain::IsObjCNonFragileABIDefault
virtual bool IsObjCNonFragileABIDefault() const
IsObjCNonFragileABIDefault - Does this tool chain set -fobjc-nonfragile-abi by default.
Definition: ToolChain.h:351
clang::driver::tools::mips::FloatABI
FloatABI
Definition: Mips.h:26
clang::driver::tools::getStatsFileName
SmallString< 128 > getStatsFileName(const llvm::opt::ArgList &Args, const InputInfo &Output, const InputInfo &Input, const Driver &D)
Handles the -save-stats option and returns the filename to save statistics to.
Definition: CommonArgs.cpp:1374
clang::driver::Driver::IsCLMode
bool IsCLMode() const
Whether the driver should follow cl.exe like behavior.
Definition: Driver.h:182
clang::driver::tools::ClangAs::AddRISCVTargetArgs
void AddRISCVTargetArgs(const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs) const
Definition: Clang.cpp:6551
clang::isAlphanumeric
LLVM_READONLY bool isAlphanumeric(unsigned char c)
Return true if this character is an ASCII letter or digit: [a-zA-Z0-9].
Definition: CharInfo.h:117
clang::driver::Compilation::addCommand
void addCommand(std::unique_ptr< Command > C)
Definition: Compilation.h:205
clang::driver::tools::Clang::getDependencyFileName
static const char * getDependencyFileName(const llvm::opt::ArgList &Args, const InputInfoList &Inputs)
Definition: Clang.cpp:6509
clang::driver::tools::arm::FloatABI::SoftFP
clang::driver::ToolChain::isNoExecStackDefault
virtual bool isNoExecStackDefault() const
Test whether this toolchaind defaults to non-executable stacks.
Definition: ToolChain.cpp:113
clang::driver::tools::ParsePICArgs
std::tuple< llvm::Reloc::Model, unsigned, bool > ParsePICArgs(const ToolChain &ToolChain, const llvm::opt::ArgList &Args)
clang::driver::tools::sparc::getSparcTargetFeatures
void getSparcTargetFeatures(const Driver &D, const llvm::opt::ArgList &Args, std::vector< llvm::StringRef > &Features)
clang::driver::tools::isObjCAutoRefCount
bool isObjCAutoRefCount(const llvm::opt::ArgList &Args)
clang::ComparisonCategoryType::Last
clang::ObjCRuntime::GNUstep
&#39;gnustep&#39; is the modern non-fragile GNUstep runtime.
Definition: ObjCRuntime.h:55
clang::driver::ToolChain::supportsDebugInfoOption
virtual bool supportsDebugInfoOption(const llvm::opt::Arg *) const
Does this toolchain supports given debug info option or not.
Definition: ToolChain.h:467
v
do v
Definition: arm_acle.h:64
CheckCodeGenerationOptions
static void CheckCodeGenerationOptions(const Driver &D, const ArgList &Args)
Definition: Clang.cpp:66
clang::driver::Compilation::getOffloadToolChains
const_offload_toolchains_range getOffloadToolChains() const
Definition: Compilation.h:150
isSignedCharDefault
static bool isSignedCharDefault(const llvm::Triple &Triple)
Definition: Clang.cpp:1375
clang::driver::ToolChain::IsMathErrnoDefault
virtual bool IsMathErrnoDefault() const
IsMathErrnoDefault - Does this tool chain use -fmath-errno by default.
Definition: ToolChain.h:343
clang::driver::tools::ParseFunctionAlignment
unsigned ParseFunctionAlignment(const ToolChain &TC, const llvm::opt::ArgList &Args)
getFramePointerKind
static CodeGenOptions::FramePointerKind getFramePointerKind(const ArgList &Args, const llvm::Triple &Triple)
Definition: Clang.cpp:590
clang::driver::tools::PS4cpu::addSanitizerArgs
void addSanitizerArgs(const ToolChain &TC, llvm::opt::ArgStringList &CmdArgs)
clang::driver::ToolChain::getArch
llvm::Triple::ArchType getArch() const
Definition: ToolChain.h:215
X86.h
clang::driver::ToolChain::UseObjCMixedDispatch
virtual bool UseObjCMixedDispatch() const
UseObjCMixedDispatchDefault - When using non-legacy dispatch, should the mixed dispatch method be use...
Definition: ToolChain.h:355
MSP430.h
RenderModulesOptions
static void RenderModulesOptions(Compilation &C, const Driver &D, const ArgList &Args, const InputInfo &Input, const InputInfo &Output, ArgStringList &CmdArgs, bool &HaveModules)
Definition: Clang.cpp:3146
clang::driver::ToolChain::getInputFilename
virtual std::string getInputFilename(const InputInfo &Input) const
Some toolchains need to modify the file name, for example to replace the extension for object files w...
Definition: ToolChain.cpp:245
Clang.h
clang::driver::ToolChain::getCompilerRT
virtual std::string getCompilerRT(const llvm::opt::ArgList &Args, StringRef Component, FileType Type=ToolChain::FT_Static) const
Definition: ToolChain.cpp:391
clang::driver::Driver::embedBitcodeInObject
bool embedBitcodeInObject() const
Definition: Driver.h:351
isNoCommonDefault
static bool isNoCommonDefault(const llvm::Triple &Triple)
Definition: Clang.cpp:1407
EscapeSpacesAndBackslashes
static void EscapeSpacesAndBackslashes(const char *Arg, SmallVectorImpl< char > &Res)
Definition: Clang.cpp:78
clang::driver::Compilation::getArgs
const llvm::opt::DerivedArgList & getArgs() const
Definition: Compilation.h:186
getRefinementStep
static bool getRefinementStep(StringRef In, const Driver &D, const Arg &A, size_t &Position)
This is a helper function for validating the optional refinement step parameter in reciprocal argumen...
Definition: Clang.cpp:157
clang::driver::tools::ppc::FloatABI::Soft
clang::codegenoptions::FullDebugInfo
Generate complete debug info.
Definition: DebugInfoOptions.h:49
clang::driver::ToolChain::getDriver
const Driver & getDriver() const
Definition: ToolChain.h:199
clang::ObjCRuntime::getKind
Kind getKind() const
Definition: ObjCRuntime.h:76
checkDebugInfoOption
static bool checkDebugInfoOption(const Arg *A, const ArgList &Args, const Driver &D, const ToolChain &TC)
Definition: Clang.cpp:1032
clang::driver::Driver::OMPRT_IOMP5
The legacy name for the LLVM OpenMP runtime from when it was the Intel OpenMP runtime.
Definition: Driver.h:105
clang::codegenoptions::DIF_DWARF
Definition: DebugInfoOptions.h:16
clang::driver::tools::mips::getMIPSTargetFeatures
void getMIPSTargetFeatures(const Driver &D, const llvm::Triple &Triple, const llvm::opt::ArgList &Args, std::vector< StringRef > &Features)
getDebugFissionKind
static DwarfFissionKind getDebugFissionKind(const Driver &D, const ArgList &Args, Arg *&Arg)
Definition: Clang.cpp:3554
clang::driver::Driver::isSaveTempsEnabled
bool isSaveTempsEnabled() const
Definition: Driver.h:347
clang::driver::tools::getLastProfileSampleUseArg
llvm::opt::Arg * getLastProfileSampleUseArg(const llvm::opt::ArgList &Args)
llvm::SmallVector
Definition: LLVM.h:35
clang::codegenoptions::DebugInfoConstructor
Limit generated debug info for classes to reduce size.
Definition: DebugInfoOptions.h:40
clang::ObjCRuntime::isLegacyDispatchDefaultForArch
bool isLegacyDispatchDefaultForArch(llvm::Triple::ArchType Arch)
The default dispatch mechanism to use for the specified architecture.
Definition: ObjCRuntime.h:99
Options.h
clang::driver::tools::getLastProfileUseArg
llvm::opt::Arg * getLastProfileUseArg(const llvm::opt::ArgList &Args)
clang::driver::Action::PrecompileJobClass
Definition: Action.h:60
clang::ObjCRuntime::getVersion
const VersionTuple & getVersion() const
Definition: ObjCRuntime.h:77
appendUserToPath
static void appendUserToPath(SmallVectorImpl< char > &Result)
Definition: Clang.cpp:724
clang::driver::InputInfo::getInputArg
const llvm::opt::Arg & getInputArg() const
Definition: InputInfo.h:87
clang::driver::Tool::getShortName
const char * getShortName() const
Definition: Tool.h:81
clang::driver::tools::Clang::ConstructJob
void ConstructJob(Compilation &C, const JobAction &JA, const InputInfo &Output, const InputInfoList &Inputs, const llvm::opt::ArgList &TCArgs, const char *LinkingOutput) const override
ConstructJob - Construct jobs to perform the action JA, writing to Output and with Inputs...
Definition: Clang.cpp:3855
clang::driver::options::Unsupported
Definition: Options.h:30
DwarfFissionKind::Split
clang::driver::Action::OffloadKind
OffloadKind
Definition: Action.h:84
clang
Dataflow Directional Tag Classes.
Definition: CFGReachabilityAnalysis.h:21
clang::driver::Driver::CCPrintHeadersFilename
const char * CCPrintHeadersFilename
The file to log CC_PRINT_HEADERS output to, if enabled.
Definition: Driver.h:163
RenderObjCOptions
static void RenderObjCOptions(const ToolChain &TC, const Driver &D, const llvm::Triple &T, const ArgList &Args, ObjCRuntime &Runtime, bool InferCovariantReturns, const InputInfo &Input, ArgStringList &CmdArgs)
Definition: Clang.cpp:3347
Mips.h
clang::driver::tools::ClangAs::AddMIPSTargetArgs
void AddMIPSTargetArgs(const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs) const
Definition: Clang.cpp:6524
clang::StructuralEquivalenceKind::Default
clang::driver::tools::ppc::getPPCTargetFeatures
void getPPCTargetFeatures(const Driver &D, const llvm::Triple &Triple, const llvm::opt::ArgList &Args, std::vector< llvm::StringRef > &Features)
clang::driver::ToolChain::CheckObjCARC
virtual void CheckObjCARC() const
Complain if this tool chain doesn&#39;t support Objective-C ARC.
Definition: ToolChain.h:440
clang::ObjCRuntime
The basic abstraction for the target Objective-C runtime.
Definition: ObjCRuntime.h:27
clang::driver::ToolChain::getDefaultDebuggerTuning
virtual llvm::DebuggerKind getDefaultDebuggerTuning() const
Definition: ToolChain.h:462
CodeGenOptions.h
clang::codegenoptions::DebugLineTablesOnly
Emit only debug info necessary for generating line number tables (-gline-tables-only).
Definition: DebugInfoOptions.h:35
clang::driver::Driver::SysRoot
std::string SysRoot
sysroot, if present
Definition: Driver.h:148
clang::driver::tools::hexagon::getHexagonTargetFeatures
void getHexagonTargetFeatures(const Driver &D, const llvm::opt::ArgList &Args, std::vector< StringRef > &Features)
clang::driver::Tool
Tool - Information on a specific compilation tool.
Definition: Tool.h:33
clang::driver::ToolChain::RTTIMode
RTTIMode
Definition: ToolChain.h:108
clang::DiagnosticsEngine::getDiagnosticOptions
DiagnosticOptions & getDiagnosticOptions() const
Retrieve the diagnostic options.
Definition: Diagnostic.h:506
SystemZ.h
clang::driver::tools::areOptimizationsEnabled
bool areOptimizationsEnabled(const llvm::opt::ArgList &Args)
clang::driver::tools::x86::getX86TargetFeatures
void getX86TargetFeatures(const Driver &D, const llvm::Triple &Triple, const llvm::opt::ArgList &Args, std::vector< llvm::StringRef > &Features)
clang::driver::Compilation::getActions
ActionList & getActions()
Definition: Compilation.h:190
InputInfo.h
RenderDiagnosticsOptions
static void RenderDiagnosticsOptions(const Driver &D, const ArgList &Args, ArgStringList &CmdArgs)
Definition: Clang.cpp:3437
clang::driver::ToolChain::GetDefaultDwarfVersion
virtual unsigned GetDefaultDwarfVersion() const
Definition: ToolChain.h:453
clang::driver::tools::claimNoWarnArgs
void claimNoWarnArgs(const llvm::opt::ArgList &Args)
parseClangCLEHFlags
static EHFlags parseClangCLEHFlags(const Driver &D, const ArgList &Args)
/EH controls whether to run destructor cleanups when exceptions are thrown.
Definition: Clang.cpp:6235
addDebugCompDirArg
static void addDebugCompDirArg(const ArgList &Args, ArgStringList &CmdArgs, const llvm::vfs::FileSystem &VFS)
Add a CC1 option to specify the debug compilation directory.
Definition: Clang.cpp:619
clang::driver::tools::msp430::getMSP430TargetFeatures
void getMSP430TargetFeatures(const Driver &D, const llvm::opt::ArgList &Args, std::vector< llvm::StringRef > &Features)
clang::driver::Driver::ClangExecutable
std::string ClangExecutable
The original path to the clang executable.
Definition: Driver.h:123
clang::Language::Asm
Assembly: we accept this only so that we can preprocess it.
clang::driver::types::getPrecompiledType
ID getPrecompiledType(ID Id)
getPrecompiledType - Get the ID of the type for this input when it has been precompiled, or INVALID if this input is not precompiled.
Definition: Types.cpp:59
clang::LangOptions::SSPOn
Definition: LangOptions.h:58
clang::driver::types::isCXX
bool isCXX(ID Id)
isCXX - Is this a "C++" input (C++ and Obj-C++ sources and headers).
Definition: Types.cpp:160
clang::driver::Compilation
Compilation - A set of tasks to perform for a single driver invocation.
Definition: Compilation.h:45
DwarfFissionKind
DwarfFissionKind
Definition: Clang.cpp:3552
clang::driver::ToolChain::getDefaultDebugFormat
virtual codegenoptions::DebugInfoFormat getDefaultDebugFormat() const
Get the default debug info format. Typically, this is DWARF.
Definition: ToolChain.h:443
clang::driver::Compilation::getDriver
const Driver & getDriver() const
Definition: Compilation.h:133
clang::driver::ToolChain::getTriple
const llvm::Triple & getTriple() const
Definition: ToolChain.h:201
clang::driver::toolchains::HexagonToolChain::getSmallDataThreshold
static Optional< unsigned > getSmallDataThreshold(const llvm::opt::ArgList &Args)
Definition: Hexagon.cpp:401
shouldUseExceptionTablesForObjCExceptions
static bool shouldUseExceptionTablesForObjCExceptions(const ObjCRuntime &runtime, const llvm::Triple &Triple)
Definition: Clang.cpp:396
clang::driver::Action::GetOffloadKindName
static StringRef GetOffloadKindName(OffloadKind Kind)
Return a string containing a offload kind name.
Definition: Action.cpp:146
clang::driver::Action::AssembleJobClass
Definition: Action.h:66
clang::driver
Definition: Action.h:31
clang::LangOptions::TrivialAutoVarInitKind::Pattern
clang::driver::tools::mips::hasCompactBranches
bool hasCompactBranches(StringRef &CPU)
Definition: Mips.cpp:426
clang::driver::Tool::getToolChain
const ToolChain & getToolChain() const
Definition: Tool.h:83
DriverDiagnostic.h
clang::driver::Driver::CCLogDiagnosticsFilename
const char * CCLogDiagnosticsFilename
The file to log CC_LOG_DIAGNOSTICS output to, if enabled.
Definition: Driver.h:166
clang::driver::Compilation::addFailureResultFile
const char * addFailureResultFile(const char *Name, const JobAction *JA)
addFailureResultFile - Add a file to remove if we crash, and returns its argument.
Definition: Compilation.h:246
clang::driver::ToolChain::GetDefaultStandaloneDebug
virtual bool GetDefaultStandaloneDebug() const
Definition: ToolChain.h:459
clang::driver::willEmitRemarks
bool willEmitRemarks(const llvm::opt::ArgList &Args)
clang::driver::InputInfo::isNothing
bool isNothing() const
Definition: InputInfo.h:74
addMacroPrefixMapArg
static void addMacroPrefixMapArg(const Driver &D, const ArgList &Args, ArgStringList &CmdArgs)
Add a CC1 and CC1AS option to specify the macro file path prefix map.
Definition: Clang.cpp:646
clang::driver::tools::arm::getARMTargetFeatures
void getARMTargetFeatures(const ToolChain &TC, const llvm::Triple &Triple, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs, std::vector< llvm::StringRef > &Features, bool ForAS)
clang::driver::InputInfo::getBaseInput
const char * getBaseInput() const
Definition: InputInfo.h:78
mustUseNonLeafFramePointerForTarget
static bool mustUseNonLeafFramePointerForTarget(const llvm::Triple &Triple)
Definition: Clang.cpp:511
clang::driver::Action::GetOffloadingFileNamePrefix
static std::string GetOffloadingFileNamePrefix(OffloadKind Kind, StringRef NormalizedTriple, bool CreatePrefixForHost=false)
Return a string that can be used as prefix in order to generate unique files for each offloading kind...
Definition: Action.cpp:130
clang::driver::ToolChain::GetDefaultTrivialAutoVarInit
virtual LangOptions::TrivialAutoVarInitKind GetDefaultTrivialAutoVarInit() const
Get the default trivial automatic variable initialization.
Definition: ToolChain.h:368
clang::driver::tools::ParseDebugDefaultVersion
unsigned ParseDebugDefaultVersion(const ToolChain &TC, const llvm::opt::ArgList &Args)
ParseMRecip
static void ParseMRecip(const Driver &D, const ArgList &Args, ArgStringList &OutStrings)
The -mrecip flag requires processing of many optional parameters.
Definition: Clang.cpp:185
clang::driver::Action::OFK_Cuda
Definition: Action.h:91
clang::driver::InputInfo::isFilename
bool isFilename() const
Definition: InputInfo.h:75
clang::driver::tools::sparc::FloatABI
FloatABI
Definition: Sparc.h:23
clang::driver::tools::Clang::Clang
Clang(const ToolChain &TC)
Definition: Clang.cpp:6074
clang::driver::ToolChain::GetCXXStdlibType
virtual CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const
Definition: ToolChain.cpp:801
shouldEnableVectorizerAtOLevel
static bool shouldEnableVectorizerAtOLevel(const ArgList &Args, bool isSlpVec)
Vectorize at all optimization levels greater than 1 except for -Oz.
Definition: Clang.cpp:663
maybeConsumeDash
static bool maybeConsumeDash(const std::string &EH, size_t &I)
Definition: Clang.cpp:6214
clang::driver::Compilation::addTempFile
const char * addTempFile(const char *Name)
addTempFile - Add a file to remove on exit, and returns its argument.
Definition: Compilation.h:232
clang::driver::types::TY_INVALID
Definition: Types.h:24
RenderTrivialAutoVarInitOptions
static void RenderTrivialAutoVarInitOptions(const Driver &D, const ToolChain &TC, const ArgList &Args, ArgStringList &CmdArgs)
Definition: Clang.cpp:2960
clang::driver::Driver::getClangProgramPath
const char * getClangProgramPath() const
Get the path to the main clang executable.
Definition: Driver.h:333
clang::driver::Compilation::getSingleOffloadToolChain
const ToolChain * getSingleOffloadToolChain() const
Return an offload toolchain of the provided kind.
Definition: Compilation.h:163
clang::driver::tools::ClangAs::ConstructJob
void ConstructJob(Compilation &C, const JobAction &JA, const InputInfo &Output, const InputInfoList &Inputs, const llvm::opt::ArgList &TCArgs, const char *LinkingOutput) const override
ConstructJob - Construct jobs to perform the action JA, writing to Output and with Inputs...
Definition: Clang.cpp:6560
clang::driver::Driver::CCCIsCPP
bool CCCIsCPP() const
Whether the driver is just the preprocessor.
Definition: Driver.h:176
clang::driver::tools::mips::getMipsCPUAndABI
void getMipsCPUAndABI(const llvm::opt::ArgList &Args, const llvm::Triple &Triple, StringRef &CPUName, StringRef &ABIName)
clang::driver::tools::Clang::getBaseInputStem
static const char * getBaseInputStem(const llvm::opt::ArgList &Args, const InputInfoList &Inputs)
Definition: Clang.cpp:6499
clang::CodeGenOptions::FramePointerKind::NonLeaf
clang::driver::LTOK_Full
Definition: Driver.h:52
clang::CodeGenOptions::FramePointerKind::None
RenderAnalyzerOptions
static void RenderAnalyzerOptions(const ArgList &Args, ArgStringList &CmdArgs, const llvm::Triple &Triple, const InputInfo &Input)
Definition: Clang.cpp:2837
ContainsCompileAction
static bool ContainsCompileAction(const Action *A)
Check whether the given input tree contains any compilation actions.
Definition: Clang.cpp:946
DebugLevelToInfoKind
static codegenoptions::DebugInfoKind DebugLevelToInfoKind(const Arg &A)
Definition: Clang.cpp:497
clang::driver::tools::mips::FloatABI::Soft
clang::driver::tools::riscv::getRISCVTargetFeatures
void getRISCVTargetFeatures(const Driver &D, const llvm::Triple &Triple, const llvm::opt::ArgList &Args, std::vector< llvm::StringRef > &Features)
ShouldDisableDwarfDirectory
static bool ShouldDisableDwarfDirectory(const ArgList &Args, const ToolChain &TC)
Definition: Clang.cpp:487
clang::driver::types::isLLVMIR
bool isLLVMIR(ID Id)
Is this LLVM IR.
Definition: Types.cpp:178
clang::driver::SanitizerArgs::needsLTO
bool needsLTO() const
Definition: SanitizerArgs.cpp:237
AArch64.h
RenderDebugOptions
static void RenderDebugOptions(const ToolChain &TC, const Driver &D, const llvm::Triple &T, const ArgList &Args, bool EmitCodeView, bool IsWindowsMSVC, ArgStringList &CmdArgs, codegenoptions::DebugInfoKind &DebugInfoKind, DwarfFissionKind &DwarfFission)
Definition: Clang.cpp:3575
clang::driver::Action::getOffloadingArch
const char * getOffloadingArch() const
Definition: Action.h:199
clang::driver::Driver::CCGenDiagnostics
unsigned CCGenDiagnostics
Whether the driver is generating diagnostics for debugging purposes.
Definition: Driver.h:205
clang::driver::JobList::getJobs
const list_type & getJobs() const
Definition: Job.h:209
RenderOpenCLOptions
static void RenderOpenCLOptions(const ArgList &Args, ArgStringList &CmdArgs)
Definition: Clang.cpp:3004
XRayArgs.h
clang::driver::types::isObjC
bool isObjC(ID Id)
isObjC - Is this an "ObjC" input (Obj-C and Obj-C++ sources and headers).
Definition: Types.cpp:147
clang::ObjCRuntime::allowsWeak
bool allowsWeak() const
Does this runtime allow the use of __weak?
Definition: ObjCRuntime.h:282
Std
LangStandard::Kind Std
Definition: InterpolatingCompilationDatabase.cpp:129
clang::driver::ToolChain
ToolChain - Access to tools for a single platform.
Definition: ToolChain.h:88
clang::driver::Driver::ResourceDir
std::string ResourceDir
The path to the compiler resource directory.
Definition: Driver.h:132
clang::driver::tools::mips::getMipsFloatABI
mips::FloatABI getMipsFloatABI(const Driver &D, const llvm::opt::ArgList &Args, const llvm::Triple &Triple)