clang 10.0.0git

SystemZ.cpp
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1 //===--- SystemZ.cpp - Implement SystemZ target feature support -----------===//
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 // This file implements SystemZ TargetInfo objects.
10 //
11 //===----------------------------------------------------------------------===//
12
13 #include "SystemZ.h"
14 #include "clang/Basic/Builtins.h"
15 #include "clang/Basic/LangOptions.h"
16 #include "clang/Basic/MacroBuilder.h"
17 #include "clang/Basic/TargetBuiltins.h"
18 #include "llvm/ADT/StringSwitch.h"
19
20 using namespace clang;
21 using namespace clang::targets;
22
23 const Builtin::Info SystemZTargetInfo::BuiltinInfo[] = {
24 #define BUILTIN(ID, TYPE, ATTRS) \
25 {#ID, TYPE, ATTRS, nullptr, ALL_LANGUAGES, nullptr},
26 #define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE) \
27 {#ID, TYPE, ATTRS, nullptr, ALL_LANGUAGES, FEATURE},
28 #include "clang/Basic/BuiltinsSystemZ.def"
29 };
30
31 const char *const SystemZTargetInfo::GCCRegNames[] = {
32 "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
33 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
34 "f0", "f2", "f4", "f6", "f1", "f3", "f5", "f7",
35 "f8", "f10", "f12", "f14", "f9", "f11", "f13", "f15",
36 /*ap*/"", "cc", /*fp*/"", /*rp*/"", "a0", "a1",
37 "v16", "v18", "v20", "v22", "v17", "v19", "v21", "v23",
38 "v24", "v26", "v28", "v30", "v25", "v27", "v29", "v31"
39 };
40
41 const TargetInfo::AddlRegName GCCAddlRegNames[] = {
42 {{"v0"}, 16}, {{"v2"}, 17}, {{"v4"}, 18}, {{"v6"}, 19},
43 {{"v1"}, 20}, {{"v3"}, 21}, {{"v5"}, 22}, {{"v7"}, 23},
44 {{"v8"}, 24}, {{"v10"}, 25}, {{"v12"}, 26}, {{"v14"}, 27},
45 {{"v9"}, 28}, {{"v11"}, 29}, {{"v13"}, 30}, {{"v15"}, 31}
46 };
47
48 ArrayRef<const char *> SystemZTargetInfo::getGCCRegNames() const {
49 return llvm::makeArrayRef(GCCRegNames);
50 }
51
52 ArrayRef<TargetInfo::AddlRegName> SystemZTargetInfo::getGCCAddlRegNames() const {
53 return llvm::makeArrayRef(GCCAddlRegNames);
54 }
55
56 bool SystemZTargetInfo::validateAsmConstraint(
57 const char *&Name, TargetInfo::ConstraintInfo &Info) const {
58 switch (*Name) {
59 default:
60 return false;
61
62 case 'a': // Address register
63 case 'd': // Data register (equivalent to 'r')
64 case 'f': // Floating-point register
65 case 'v': // Vector register
66 Info.setAllowsRegister();
67 return true;
68
69 case 'I': // Unsigned 8-bit constant
70 case 'J': // Unsigned 12-bit constant
71 case 'K': // Signed 16-bit constant
72 case 'L': // Signed 20-bit displacement (on all targets we support)
73 case 'M': // 0x7fffffff
74 return true;
75
76 case 'Q': // Memory with base and unsigned 12-bit displacement
77 case 'R': // Likewise, plus an index
78 case 'S': // Memory with base and signed 20-bit displacement
79 case 'T': // Likewise, plus an index
80 Info.setAllowsMemory();
81 return true;
82 }
83 }
84
85 struct ISANameRevision {
86 llvm::StringLiteral Name;
87 int ISARevisionID;
88 };
89 static constexpr ISANameRevision ISARevisions[] = {
90 {{"arch8"}, 8}, {{"z10"}, 8},
91 {{"arch9"}, 9}, {{"z196"}, 9},
92 {{"arch10"}, 10}, {{"zEC12"}, 10},
93 {{"arch11"}, 11}, {{"z13"}, 11},
94 {{"arch12"}, 12}, {{"z14"}, 12},
95 {{"arch13"}, 13}, {{"z15"}, 13}
96 };
97
98 int SystemZTargetInfo::getISARevision(StringRef Name) const {
99 const auto Rev =
100 llvm::find_if(ISARevisions, [Name](const ISANameRevision &CR) {
101 return CR.Name == Name;
102 });
103 if (Rev == std::end(ISARevisions))
104 return -1;
105 return Rev->ISARevisionID;
106 }
107
108 void SystemZTargetInfo::fillValidCPUList(
109 SmallVectorImpl<StringRef> &Values) const {
110 for (const ISANameRevision &Rev : ISARevisions)
111 Values.push_back(Rev.Name);
112 }
113
114 bool SystemZTargetInfo::hasFeature(StringRef Feature) const {
115 return llvm::StringSwitch<bool>(Feature)
116 .Case("systemz", true)
117 .Case("arch8", ISARevision >= 8)
118 .Case("arch9", ISARevision >= 9)
119 .Case("arch10", ISARevision >= 10)
120 .Case("arch11", ISARevision >= 11)
121 .Case("arch12", ISARevision >= 12)
122 .Case("arch13", ISARevision >= 13)
123 .Case("htm", HasTransactionalExecution)
124 .Case("vx", HasVector)
125 .Default(false);
126 }
127
128 void SystemZTargetInfo::getTargetDefines(const LangOptions &Opts,
129 MacroBuilder &Builder) const {
130 Builder.defineMacro("__s390__");
131 Builder.defineMacro("__s390x__");
132 Builder.defineMacro("__zarch__");
133 Builder.defineMacro("__LONG_DOUBLE_128__");
134
135 Builder.defineMacro("__ARCH__", Twine(ISARevision));
136
137 Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1");
138 Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2");
139 Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4");
140 Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8");
141
142 if (HasTransactionalExecution)
143 Builder.defineMacro("__HTM__");
144 if (HasVector)
145 Builder.defineMacro("__VX__");
146 if (Opts.ZVector)
147 Builder.defineMacro("__VEC__", "10303");
148 }
149
150 ArrayRef<Builtin::Info> SystemZTargetInfo::getTargetBuiltins() const {
151 return llvm::makeArrayRef(BuiltinInfo, clang::SystemZ::LastTSBuiltin -
152 Builtin::FirstTSBuiltin);
153 }
MacroBuilder.h
Defines the clang::MacroBuilder utility class.
clang::targets
Definition: AArch64.h:21
clang::Builtin::Info
Definition: Builtins.h:53
clang::LangOptions
Keeps track of the various options that can be enabled, which controls the dialect of C or C++ that i...
Definition: LangOptions.h:53
llvm::SmallVectorImpl
Definition: LLVM.h:36
clang::targets::SystemZTargetInfo::fillValidCPUList
void fillValidCPUList(SmallVectorImpl< StringRef > &Values) const override
Fill a SmallVectorImpl with the valid values to setCPU.
Definition: SystemZ.cpp:108
ISANameRevision::ISARevisionID
int ISARevisionID
Definition: SystemZ.cpp:87
ISARevisions
static constexpr ISANameRevision ISARevisions[]
Definition: SystemZ.cpp:89
clang::targets::SystemZTargetInfo::getTargetBuiltins
ArrayRef< Builtin::Info > getTargetBuiltins() const override
Return information about target-specific builtins for the current primary target, and info about whic...
Definition: SystemZ.cpp:150
llvm::ArrayRef
Definition: LLVM.h:31
SystemZ.h
LangOptions.h
Defines the clang::LangOptions interface.
clang::TargetInfo::ConstraintInfo::setAllowsMemory
void setAllowsMemory()
Definition: TargetInfo.h:894
clang::targets::SystemZTargetInfo::getTargetDefines
void getTargetDefines(const LangOptions &Opts, MacroBuilder &Builder) const override
===-— Other target property query methods --------------------——===//
Definition: SystemZ.cpp:128
clang::SystemZ::LastTSBuiltin
Definition: TargetBuiltins.h:198
clang::TargetInfo::ConstraintInfo
Definition: TargetInfo.h:830
clang::TargetInfo::ConstraintInfo::setAllowsRegister
void setAllowsRegister()
Definition: TargetInfo.h:895
TargetBuiltins.h
Enumerates target-specific builtins in their own namespaces within namespace clang.
clang::targets::SystemZTargetInfo::hasFeature
bool hasFeature(StringRef Feature) const override
Determine whether the given target has the given feature.
Definition: SystemZ.cpp:114
GCCAddlRegNames
const TargetInfo::AddlRegName GCCAddlRegNames[]
Definition: SystemZ.cpp:41
clang
Dataflow Directional Tag Classes.
Definition: CFGReachabilityAnalysis.h:21
clang::targets::SystemZTargetInfo::validateAsmConstraint
bool validateAsmConstraint(const char *&Name, TargetInfo::ConstraintInfo &info) const override
Definition: SystemZ.cpp:56
ISANameRevision::Name
llvm::StringLiteral Name
Definition: SystemZ.cpp:86
clang::targets::SystemZTargetInfo::getGCCAddlRegNames
ArrayRef< TargetInfo::AddlRegName > getGCCAddlRegNames() const override
Definition: SystemZ.cpp:52
ISANameRevision
Definition: SystemZ.cpp:85
clang::Builtin::FirstTSBuiltin
Definition: Builtins.h:50
clang::MacroBuilder
Definition: MacroBuilder.h:23
clang::targets::SystemZTargetInfo::getGCCRegNames
ArrayRef< const char * > getGCCRegNames() const override
Definition: SystemZ.cpp:48
clang::MacroBuilder::defineMacro
void defineMacro(const Twine &Name, const Twine &Value="1")
Append a #define line for macro of the form "\#define Name Value\n".
Definition: MacroBuilder.h:29
clang::TargetInfo::AddlRegName
Definition: TargetInfo.h:1008
Builtins.h
Defines enum values for all the target-independent builtin functions.
clang::targets::SystemZTargetInfo::getISARevision
int getISARevision(StringRef Name) const
Definition: SystemZ.cpp:98