WebAssembly.h revision 326941
1100384Speter//=== WebAssembly.h - Declare WebAssembly target feature support *- C++ -*-===// 2100384Speter// 3100384Speter// The LLVM Compiler Infrastructure 4100384Speter// 5100384Speter// This file is distributed under the University of Illinois Open Source 6100384Speter// License. See LICENSE.TXT for details. 7100384Speter// 8100384Speter//===----------------------------------------------------------------------===// 9100384Speter// 10100384Speter// This file declares WebAssembly TargetInfo objects. 11100384Speter// 12100384Speter//===----------------------------------------------------------------------===// 13100384Speter 14100384Speter#ifndef LLVM_CLANG_LIB_BASIC_TARGETS_WEBASSEMBLY_H 15100384Speter#define LLVM_CLANG_LIB_BASIC_TARGETS_WEBASSEMBLY_H 16100384Speter 17100384Speter#include "clang/Basic/TargetInfo.h" 18100384Speter#include "clang/Basic/TargetOptions.h" 19100384Speter#include "llvm/ADT/Triple.h" 20100384Speter#include "llvm/Support/Compiler.h" 21100384Speter 22100384Speternamespace clang { 23100384Speternamespace targets { 24100384Speter 25100384Speterclass LLVM_LIBRARY_VISIBILITY WebAssemblyTargetInfo : public TargetInfo { 26100384Speter static const Builtin::Info BuiltinInfo[]; 27118031Sobrien 28118031Sobrien enum SIMDEnum { 29118031Sobrien NoSIMD, 30104738Speter SIMD128, 31104738Speter } SIMDLevel; 32100384Speter 33100384Speter bool HasNontrappingFPToInt; 34100384Speter 35100384Speterpublic: 36100384Speter explicit WebAssemblyTargetInfo(const llvm::Triple &T, const TargetOptions &) 37100384Speter : TargetInfo(T), SIMDLevel(NoSIMD), HasNontrappingFPToInt(false) { 38123746Speter NoAsmVariants = true; 39100384Speter SuitableAlign = 128; 40100384Speter LargeArrayMinWidth = 128; 41100384Speter LargeArrayAlign = 128; 42100384Speter SimdDefaultAlign = 128; 43100384Speter SigAtomicType = SignedLong; 44100384Speter LongDoubleWidth = LongDoubleAlign = 128; 45100384Speter LongDoubleFormat = &llvm::APFloat::IEEEquad(); 46100384Speter SizeType = UnsignedInt; 47100384Speter PtrDiffType = SignedInt; 48100384Speter IntPtrType = SignedInt; 49100384Speter } 50100384Speter 51100384Speterprotected: 52100384Speter void getTargetDefines(const LangOptions &Opts, 53100384Speter MacroBuilder &Builder) const override; 54100384Speter 55146950Spsprivate: 56100384Speter bool 57100384Speter initFeatureMap(llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags, 58100384Speter StringRef CPU, 59100384Speter const std::vector<std::string> &FeaturesVec) const override { 60100384Speter if (CPU == "bleeding-edge") { 61100384Speter Features["simd128"] = true; 62113859Sjhb Features["nontrapping-fptoint"] = true; 63100384Speter } 64100384Speter return TargetInfo::initFeatureMap(Features, Diags, CPU, FeaturesVec); 65100384Speter } 66100384Speter 67100384Speter bool hasFeature(StringRef Feature) const final; 68100384Speter 69127140Sjhb bool handleTargetFeatures(std::vector<std::string> &Features, 70100384Speter DiagnosticsEngine &Diags) final; 71100384Speter 72100384Speter bool isValidCPUName(StringRef Name) const final; 73100384Speter 74100384Speter bool setCPU(const std::string &Name) final { return isValidCPUName(Name); } 75100384Speter 76100384Speter ArrayRef<Builtin::Info> getTargetBuiltins() const final; 77100384Speter 78100384Speter BuiltinVaListKind getBuiltinVaListKind() const final { 79119333Speter return VoidPtrBuiltinVaList; 80119333Speter } 81119333Speter 82100384Speter ArrayRef<const char *> getGCCRegNames() const final { return None; } 83121719Speter 84121719Speter ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const final { 85121719Speter return None; 86121719Speter } 87121719Speter 88100384Speter bool validateAsmConstraint(const char *&Name, 89119333Speter TargetInfo::ConstraintInfo &Info) const final { 90100384Speter return false; 91127140Sjhb } 92127140Sjhb 93136152Sjhb const char *getClobbers() const final { return ""; } 94100384Speter 95136152Sjhb bool isCLZForZeroUndef() const final { return false; } 96136152Sjhb 97136152Sjhb bool hasInt128Type() const final { return true; } 98136152Sjhb 99136152Sjhb IntType getIntTypeByWidth(unsigned BitWidth, bool IsSigned) const final { 100100384Speter // WebAssembly prefers long long for explicitly 64-bit integers. 101100384Speter return BitWidth == 64 ? (IsSigned ? SignedLongLong : UnsignedLongLong) 102127140Sjhb : TargetInfo::getIntTypeByWidth(BitWidth, IsSigned); 103127140Sjhb } 104127140Sjhb 105100384Speter IntType getLeastIntTypeByWidth(unsigned BitWidth, bool IsSigned) const final { 106100384Speter // WebAssembly uses long long for int_least64_t and int_fast64_t. 107100384Speter return BitWidth == 64 108100384Speter ? (IsSigned ? SignedLongLong : UnsignedLongLong) 109100384Speter : TargetInfo::getLeastIntTypeByWidth(BitWidth, IsSigned); 110100384Speter } 111100384Speter}; 112100384Speterclass LLVM_LIBRARY_VISIBILITY WebAssembly32TargetInfo 113100384Speter : public WebAssemblyTargetInfo { 114100384Speterpublic: 115100384Speter explicit WebAssembly32TargetInfo(const llvm::Triple &T, 116100384Speter const TargetOptions &Opts) 117100384Speter : WebAssemblyTargetInfo(T, Opts) { 118100384Speter MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 64; 119100384Speter resetDataLayout("e-m:e-p:32:32-i64:64-n32:64-S128"); 120100384Speter } 121127140Sjhb 122100384Speterprotected: 123100384Speter void getTargetDefines(const LangOptions &Opts, 124100384Speter MacroBuilder &Builder) const override; 125100384Speter}; 126128597Smarcel 127100384Speterclass LLVM_LIBRARY_VISIBILITY WebAssembly64TargetInfo 128100384Speter : public WebAssemblyTargetInfo { 129100384Speterpublic: 130100384Speter explicit WebAssembly64TargetInfo(const llvm::Triple &T, 131100384Speter const TargetOptions &Opts) 132100384Speter : WebAssemblyTargetInfo(T, Opts) { 133100384Speter LongAlign = LongWidth = 64; 134100384Speter PointerAlign = PointerWidth = 64; 135100384Speter MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 64; 136100384Speter SizeType = UnsignedLong; 137100384Speter PtrDiffType = SignedLong; 138100384Speter IntPtrType = SignedLong; 139100384Speter resetDataLayout("e-m:e-p:64:64-i64:64-n32:64-S128"); 140100384Speter } 141100384Speter 142100384Speterprotected: 143100384Speter void getTargetDefines(const LangOptions &Opts, 144100384Speter MacroBuilder &Builder) const override; 145100384Speter}; 146100384Speter} // namespace targets 147128260Speter} // namespace clang 148100384Speter#endif // LLVM_CLANG_LIB_BASIC_TARGETS_WEBASSEMBLY_H 149100384Speter