1 //===--- SystemZ.h - Declare SystemZ target feature support -----*- 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 // This file declares SystemZ TargetInfo objects. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_CLANG_LIB_BASIC_TARGETS_SYSTEMZ_H 14 #define LLVM_CLANG_LIB_BASIC_TARGETS_SYSTEMZ_H 15 16 #include "clang/Basic/TargetInfo.h" 17 #include "clang/Basic/TargetOptions.h" 18 #include "llvm/ADT/Triple.h" 19 #include "llvm/Support/Compiler.h" 20 21 namespace clang { 22 namespace targets { 23 24 class LLVM_LIBRARY_VISIBILITY SystemZTargetInfo : public TargetInfo { 25 26 static const Builtin::Info BuiltinInfo[]; 27 static const char *const GCCRegNames[]; 28 std::string CPU; 29 int ISARevision; 30 bool HasTransactionalExecution; 31 bool HasVector; 32 33 public: 34 SystemZTargetInfo(const llvm::Triple &Triple, const TargetOptions &) 35 : TargetInfo(Triple), CPU("z10"), ISARevision(8), 36 HasTransactionalExecution(false), HasVector(false) { 37 IntMaxType = SignedLong; 38 Int64Type = SignedLong; 39 TLSSupported = true; 40 IntWidth = IntAlign = 32; 41 LongWidth = LongLongWidth = LongAlign = LongLongAlign = 64; 42 PointerWidth = PointerAlign = 64; 43 LongDoubleWidth = 128; 44 LongDoubleAlign = 64; 45 LongDoubleFormat = &llvm::APFloat::IEEEquad(); 46 DefaultAlignForAttributeAligned = 64; 47 MinGlobalAlign = 16; 48 resetDataLayout("E-m:e-i1:8:16-i8:8:16-i64:64-f128:64-a:8:16-n32:64"); 49 MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 64; 50 } 51 52 void getTargetDefines(const LangOptions &Opts, 53 MacroBuilder &Builder) const override; 54 55 ArrayRef<Builtin::Info> getTargetBuiltins() const override; 56 57 ArrayRef<const char *> getGCCRegNames() const override; 58 59 ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override { 60 // No aliases. 61 return None; 62 } 63 64 ArrayRef<TargetInfo::AddlRegName> getGCCAddlRegNames() const override; 65 66 bool validateAsmConstraint(const char *&Name, 67 TargetInfo::ConstraintInfo &info) const override; 68 69 const char *getClobbers() const override { 70 // FIXME: Is this really right? 71 return ""; 72 } 73 74 BuiltinVaListKind getBuiltinVaListKind() const override { 75 return TargetInfo::SystemZBuiltinVaList; 76 } 77 78 int getISARevision(StringRef Name) const; 79 80 bool isValidCPUName(StringRef Name) const override { 81 return getISARevision(Name) != -1; 82 } 83 84 void fillValidCPUList(SmallVectorImpl<StringRef> &Values) const override; 85 86 bool setCPU(const std::string &Name) override { 87 CPU = Name; 88 ISARevision = getISARevision(CPU); 89 return ISARevision != -1; 90 } 91 92 bool 93 initFeatureMap(llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags, 94 StringRef CPU, 95 const std::vector<std::string> &FeaturesVec) const override { 96 int ISARevision = getISARevision(CPU); 97 if (ISARevision >= 10) 98 Features["transactional-execution"] = true; 99 if (ISARevision >= 11) 100 Features["vector"] = true; 101 if (ISARevision >= 12) 102 Features["vector-enhancements-1"] = true; 103 if (ISARevision >= 13) 104 Features["vector-enhancements-2"] = true; 105 return TargetInfo::initFeatureMap(Features, Diags, CPU, FeaturesVec); 106 } 107 108 bool handleTargetFeatures(std::vector<std::string> &Features, 109 DiagnosticsEngine &Diags) override { 110 HasTransactionalExecution = false; 111 HasVector = false; 112 for (const auto &Feature : Features) { 113 if (Feature == "+transactional-execution") 114 HasTransactionalExecution = true; 115 else if (Feature == "+vector") 116 HasVector = true; 117 } 118 // If we use the vector ABI, vector types are 64-bit aligned. 119 if (HasVector) { 120 MaxVectorAlign = 64; 121 resetDataLayout("E-m:e-i1:8:16-i8:8:16-i64:64-f128:64" 122 "-v128:64-a:8:16-n32:64"); 123 } 124 return true; 125 } 126 127 bool hasFeature(StringRef Feature) const override; 128 129 CallingConvCheckResult checkCallingConvention(CallingConv CC) const override { 130 switch (CC) { 131 case CC_C: 132 case CC_Swift: 133 case CC_OpenCLKernel: 134 return CCCR_OK; 135 default: 136 return CCCR_Warning; 137 } 138 } 139 140 StringRef getABI() const override { 141 if (HasVector) 142 return "vector"; 143 return ""; 144 } 145 146 const char *getLongDoubleMangling() const override { return "g"; } 147 }; 148 } // namespace targets 149 } // namespace clang 150 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_SYSTEMZ_H 151