14 #include "llvm/ADT/StringSwitch.h" 15 #include "llvm/Option/ArgList.h" 16 #include "llvm/Support/TargetParser.h" 20 using namespace clang;
25 llvm::StringRef Arch = Triple.getArchName();
26 return llvm::ARM::parseArchVersion(Arch);
31 llvm::StringRef Arch = Triple.getArchName();
32 return llvm::ARM::parseArchProfile(Arch) == llvm::ARM::ProfileKind::M;
37 llvm::StringRef &CPU,
bool FromAs) {
38 if (
const Arg *A = Args.getLastArg(clang::driver::options::OPT_mcpu_EQ))
40 if (
const Arg *A = Args.getLastArg(options::OPT_march_EQ))
46 Args.filtered(options::OPT_Wa_COMMA, options::OPT_Xassembler)) {
47 StringRef
Value = A->getValue();
48 if (Value.startswith(
"-mcpu="))
49 CPU = Value.substr(6);
50 if (Value.startswith(
"-march="))
51 Arch = Value.substr(7);
58 const ArgList &Args, StringRef HWDiv,
59 std::vector<StringRef> &Features) {
60 unsigned HWDivID = llvm::ARM::parseHWDiv(HWDiv);
61 if (!llvm::ARM::getHWDivFeatures(HWDivID, Features))
62 D.
Diag(clang::diag::err_drv_clang_unsupported) << A->getAsString(Args);
67 const ArgList &Args, StringRef FPU,
68 std::vector<StringRef> &Features) {
69 unsigned FPUID = llvm::ARM::parseFPU(FPU);
70 if (!llvm::ARM::getFPUFeatures(FPUID, Features))
71 D.
Diag(clang::diag::err_drv_clang_unsupported) << A->getAsString(Args);
76 std::vector<StringRef> &Features) {
78 text.split(Split, StringRef(
"+"), -1,
false);
80 for (StringRef Feature : Split) {
81 StringRef FeatureName = llvm::ARM::getArchExtFeature(Feature);
82 if (!FeatureName.empty())
83 Features.push_back(FeatureName);
91 std::vector<StringRef> &Features) {
92 if (CPU !=
"generic") {
93 llvm::ARM::ArchKind ArchKind = llvm::ARM::parseCPUArch(CPU);
94 unsigned Extension = llvm::ARM::getDefaultExtensions(CPU, ArchKind);
95 llvm::ARM::getExtensionFeatures(Extension, Features);
103 llvm::StringRef ArchName,
104 std::vector<StringRef> &Features,
105 const llvm::Triple &Triple) {
106 std::pair<StringRef, StringRef> Split = ArchName.split(
"+");
109 if (llvm::ARM::parseArch(MArch) == llvm::ARM::ArchKind::INVALID ||
111 D.
Diag(clang::diag::err_drv_clang_unsupported) << A->getAsString(Args);
116 llvm::StringRef CPUName, llvm::StringRef ArchName,
117 std::vector<StringRef> &Features,
118 const llvm::Triple &Triple) {
119 std::pair<StringRef, StringRef> Split = CPUName.split(
"+");
124 D.
Diag(clang::diag::err_drv_clang_unsupported) << A->getAsString(Args);
130 return T.getEnvironment() == llvm::Triple::EABI ||
136 if (Arg *A = Args.getLastArg(options::OPT_mtp_mode_EQ)) {
139 llvm::StringSwitch<arm::ReadTPMode>(A->getValue())
140 .Case(
"cp15", ReadTPMode::Cp15)
141 .Case(
"soft", ReadTPMode::Soft)
142 .Default(ReadTPMode::Invalid);
143 if (ThreadPointer != ReadTPMode::Invalid)
144 return ThreadPointer;
145 if (StringRef(A->getValue()).empty())
146 D.
Diag(diag::err_drv_missing_arg_mtp) << A->getAsString(Args);
148 D.
Diag(diag::err_drv_invalid_mtp) << A->getAsString(Args);
149 return ReadTPMode::Invalid;
151 return ReadTPMode::Soft;
162 Args.getLastArg(options::OPT_msoft_float, options::OPT_mhard_float,
163 options::OPT_mfloat_abi_EQ)) {
164 if (A->getOption().matches(options::OPT_msoft_float)) {
165 ABI = FloatABI::Soft;
166 }
else if (A->getOption().matches(options::OPT_mhard_float)) {
167 ABI = FloatABI::Hard;
169 ABI = llvm::StringSwitch<arm::FloatABI>(A->getValue())
170 .Case(
"soft", FloatABI::Soft)
171 .Case(
"softfp", FloatABI::SoftFP)
172 .Case(
"hard", FloatABI::Hard)
173 .Default(FloatABI::Invalid);
174 if (ABI == FloatABI::Invalid && !StringRef(A->getValue()).empty()) {
175 D.
Diag(diag::err_drv_invalid_mfloat_abi) << A->getAsString(Args);
176 ABI = FloatABI::Soft;
183 ABI == FloatABI::Hard) {
184 D.
Diag(diag::err_drv_unsupported_opt_for_target) << A->getAsString(Args)
185 << Triple.getArchName();
190 if (ABI == FloatABI::Invalid) {
191 switch (Triple.getOS()) {
192 case llvm::Triple::Darwin:
193 case llvm::Triple::MacOSX:
194 case llvm::Triple::IOS:
195 case llvm::Triple::TvOS: {
197 ABI = (SubArch == 6 || SubArch == 7) ? FloatABI::SoftFP : FloatABI::Soft;
198 ABI = Triple.isWatchABI() ? FloatABI::Hard : ABI;
201 case llvm::Triple::WatchOS:
202 ABI = FloatABI::Hard;
206 case llvm::Triple::Win32:
207 ABI = FloatABI::Hard;
210 case llvm::Triple::NetBSD:
211 switch (Triple.getEnvironment()) {
212 case llvm::Triple::EABIHF:
213 case llvm::Triple::GNUEABIHF:
214 ABI = FloatABI::Hard;
217 ABI = FloatABI::Soft;
222 case llvm::Triple::FreeBSD:
223 switch (Triple.getEnvironment()) {
224 case llvm::Triple::GNUEABIHF:
225 ABI = FloatABI::Hard;
229 ABI = FloatABI::Soft;
234 case llvm::Triple::OpenBSD:
235 ABI = FloatABI::Soft;
239 switch (Triple.getEnvironment()) {
240 case llvm::Triple::GNUEABIHF:
241 case llvm::Triple::MuslEABIHF:
242 case llvm::Triple::EABIHF:
243 ABI = FloatABI::Hard;
245 case llvm::Triple::GNUEABI:
246 case llvm::Triple::MuslEABI:
247 case llvm::Triple::EABI:
249 ABI = FloatABI::SoftFP;
251 case llvm::Triple::Android:
252 ABI = (SubArch == 7) ? FloatABI::SoftFP : FloatABI::Soft;
256 if (Triple.isOSBinFormatMachO() &&
257 Triple.getSubArch() == llvm::Triple::ARMSubArch_v7em)
258 ABI = FloatABI::Hard;
260 ABI = FloatABI::Soft;
262 if (Triple.getOS() != llvm::Triple::UnknownOS ||
263 !Triple.isOSBinFormatMachO())
264 D.
Diag(diag::warn_drv_assuming_mfloat_abi_is) <<
"soft";
270 assert(ABI != FloatABI::Invalid &&
"must select an ABI");
275 const llvm::Triple &Triple,
277 ArgStringList &CmdArgs,
278 std::vector<StringRef> &Features,
283 Args.hasArg(options::OPT_mkernel, options::OPT_fapple_kext);
286 const Arg *WaCPU =
nullptr, *WaFPU =
nullptr;
287 const Arg *WaHDiv =
nullptr, *WaArch =
nullptr;
304 Features.push_back(
"+soft-float");
308 Features.push_back(
"+soft-float-abi");
313 Args.filtered(options::OPT_Wa_COMMA, options::OPT_Xassembler)) {
314 StringRef
Value = A->getValue();
315 if (Value.startswith(
"-mfpu=")) {
317 }
else if (Value.startswith(
"-mcpu=")) {
319 }
else if (Value.startswith(
"-mhwdiv=")) {
321 }
else if (Value.startswith(
"-march=")) {
328 Features.push_back(
"+read-tp-hard");
331 const Arg *ArchArg = Args.getLastArg(options::OPT_march_EQ);
335 D.
Diag(clang::diag::warn_drv_unused_argument)
336 << ArchArg->getAsString(Args);
337 ArchName = StringRef(WaArch->getValue()).substr(7);
340 D.
Diag(clang::diag::warn_drv_unused_argument) << WaArch->getAsString(Args);
341 }
else if (ArchArg) {
342 ArchName = ArchArg->getValue();
347 const Arg *CPUArg = Args.getLastArg(options::OPT_mcpu_EQ);
351 D.
Diag(clang::diag::warn_drv_unused_argument)
352 << CPUArg->getAsString(Args);
353 CPUName = StringRef(WaCPU->getValue()).substr(6);
356 CPUName = CPUArg->getValue();
361 if (CPUName ==
"native") {
362 llvm::StringMap<bool> HostFeatures;
363 if (llvm::sys::getHostCPUFeatures(HostFeatures))
364 for (
auto &F : HostFeatures)
366 Args.MakeArgString((F.second ?
"+" :
"-") + F.first()));
367 }
else if (!CPUName.empty()) {
372 const Arg *FPUArg = Args.getLastArg(options::OPT_mfpu_EQ);
375 D.
Diag(clang::diag::warn_drv_unused_argument)
376 << FPUArg->getAsString(Args);
384 const Arg *HDivArg = Args.getLastArg(options::OPT_mhwdiv_EQ);
387 D.
Diag(clang::diag::warn_drv_unused_argument)
388 << HDivArg->getAsString(Args);
390 StringRef(WaHDiv->getValue()).substr(8), Features);
397 Features.push_back(
"-neon");
399 Features.push_back(
"-crypto");
403 if (Arg *A = Args.getLastArg(options::OPT_mcrc, options::OPT_mnocrc)) {
404 if (A->getOption().matches(options::OPT_mcrc))
405 Features.push_back(
"+crc");
407 Features.push_back(
"-crc");
413 if (Arg *A = Args.getLastArg(options::OPT_mlong_calls,
414 options::OPT_mno_long_calls)) {
415 if (A->getOption().matches(options::OPT_mlong_calls))
416 Features.push_back(
"+long-calls");
417 }
else if (KernelOrKext && (!Triple.isiOS() || Triple.isOSVersionLT(6)) &&
418 !Triple.isWatchOS()) {
419 Features.push_back(
"+long-calls");
427 if (Arg *A = Args.getLastArg(options::OPT_mexecute_only, options::OPT_mno_execute_only)) {
428 if (A->getOption().matches(options::OPT_mexecute_only)) {
430 llvm::ARM::parseArch(Triple.getArchName()) != llvm::ARM::ArchKind::ARMV6T2)
431 D.
Diag(diag::err_target_unsupported_execute_only) << Triple.getArchName();
432 else if (Arg *B = Args.getLastArg(options::OPT_mno_movt))
433 D.
Diag(diag::err_opt_not_valid_with_opt) << A->getAsString(Args) << B->getAsString(Args);
437 else if (Arg *B = Args.getLastArg(options::OPT_mlong_calls, options::OPT_mno_long_calls)) {
438 if (B->getOption().matches(options::OPT_mlong_calls))
439 D.
Diag(diag::err_opt_not_valid_with_opt) << A->getAsString(Args) << B->getAsString(Args);
441 Features.push_back(
"+execute-only");
448 Features.push_back(
"+strict-align");
449 else if (Arg *A = Args.getLastArg(options::OPT_mno_unaligned_access,
450 options::OPT_munaligned_access)) {
451 if (A->getOption().matches(options::OPT_munaligned_access)) {
453 if (Triple.getSubArch() == llvm::Triple::SubArchType::ARMSubArch_v6m)
454 D.
Diag(diag::err_target_unsupported_unaligned) <<
"v6m";
457 else if (Triple.getSubArch() == llvm::Triple::SubArchType::ARMSubArch_v8m_baseline)
458 D.
Diag(diag::err_target_unsupported_unaligned) <<
"v8m.base";
460 Features.push_back(
"+strict-align");
476 if (Triple.isOSDarwin() || Triple.isOSNetBSD()) {
477 if (VersionNum < 6 ||
478 Triple.getSubArch() == llvm::Triple::SubArchType::ARMSubArch_v6m)
479 Features.push_back(
"+strict-align");
480 }
else if (Triple.isOSLinux() || Triple.isOSNaCl()) {
482 Features.push_back(
"+strict-align");
484 Features.push_back(
"+strict-align");
490 if (Args.hasArg(options::OPT_ffixed_r9))
491 Features.push_back(
"+reserve-r9");
494 if (KernelOrKext || Args.hasArg(options::OPT_mno_movt))
495 Features.push_back(
"+no-movt");
497 if (Args.hasArg(options::OPT_mno_neg_immediates))
498 Features.push_back(
"+no-neg-immediates");
501 const std::string
arm::getARMArch(StringRef Arch,
const llvm::Triple &Triple) {
506 MArch = Triple.getArchName();
507 MArch = StringRef(MArch).split(
"+").first.lower();
510 if (MArch ==
"native") {
511 std::string CPU = llvm::sys::getHostCPUName();
512 if (CPU !=
"generic") {
520 MArch = std::string(
"arm") + Suffix.str();
537 return Triple.getARMCPUForArch(MArch);
542 const llvm::Triple &Triple) {
546 std::string MCPU = StringRef(CPU).split(
"+").first.lower();
548 if (MCPU ==
"native")
549 return llvm::sys::getHostCPUName();
561 const llvm::Triple &Triple) {
562 llvm::ARM::ArchKind ArchKind;
563 if (CPU ==
"generic") {
565 ArchKind = llvm::ARM::parseArch(ARMArch);
566 if (ArchKind == llvm::ARM::ArchKind::INVALID)
569 ArchKind = llvm::ARM::parseCPUArch(Triple.getARMCPUForArch(ARMArch));
573 ArchKind = (Arch ==
"armv7k" || Arch ==
"thumbv7k")
574 ? llvm::ARM::ArchKind::ARMV7K
575 : llvm::ARM::parseCPUArch(CPU);
577 if (ArchKind == llvm::ARM::ArchKind::INVALID)
579 return llvm::ARM::getSubArch(ArchKind);
583 const llvm::Triple &Triple) {
584 if (Args.hasArg(options::OPT_r))
590 CmdArgs.push_back(
"--be8");
DiagnosticBuilder Diag(unsigned DiagID) const
Driver - Encapsulate logic for constructing compilation processes from a set of gcc-driver-like comma...
const FunctionProtoType * T
Dataflow Directional Tag Classes.