1 //===--- DirectX.h - Declare DirectX 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 DXIL TargetInfo objects. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_CLANG_LIB_BASIC_TARGETS_DIRECTX_H 14 #define LLVM_CLANG_LIB_BASIC_TARGETS_DIRECTX_H 15 #include "clang/Basic/TargetInfo.h" 16 #include "clang/Basic/TargetOptions.h" 17 #include "llvm/Support/Compiler.h" 18 #include "llvm/TargetParser/Triple.h" 19 20 namespace clang { 21 namespace targets { 22 23 static const unsigned DirectXAddrSpaceMap[] = { 24 0, // Default 25 1, // opencl_global 26 3, // opencl_local 27 2, // opencl_constant 28 0, // opencl_private 29 4, // opencl_generic 30 5, // opencl_global_device 31 6, // opencl_global_host 32 0, // cuda_device 33 0, // cuda_constant 34 0, // cuda_shared 35 // SYCL address space values for this map are dummy 36 0, // sycl_global 37 0, // sycl_global_device 38 0, // sycl_global_host 39 0, // sycl_local 40 0, // sycl_private 41 0, // ptr32_sptr 42 0, // ptr32_uptr 43 0, // ptr64 44 3, // hlsl_groupshared 45 2, // hlsl_constant 46 0, // hlsl_private 47 0, // hlsl_device 48 0, // hlsl_input 49 // Wasm address space values for this target are dummy values, 50 // as it is only enabled for Wasm targets. 51 20, // wasm_funcref 52 }; 53 54 class LLVM_LIBRARY_VISIBILITY DirectXTargetInfo : public TargetInfo { 55 public: DirectXTargetInfo(const llvm::Triple & Triple,const TargetOptions &)56 DirectXTargetInfo(const llvm::Triple &Triple, const TargetOptions &) 57 : TargetInfo(Triple) { 58 TLSSupported = false; 59 VLASupported = false; 60 AddrSpaceMap = &DirectXAddrSpaceMap; 61 UseAddrSpaceMapMangling = true; 62 HasLegalHalfType = true; 63 HasFloat16 = true; 64 NoAsmVariants = true; 65 PlatformMinVersion = Triple.getOSVersion(); 66 PlatformName = llvm::Triple::getOSTypeName(Triple.getOS()); 67 resetDataLayout("e-m:e-p:32:32-i1:32-i8:8-i16:16-i32:32-i64:64-f16:16-f32:" 68 "32-f64:64-n8:16:32:64"); 69 TheCXXABI.set(TargetCXXABI::GenericItanium); 70 } useFP16ConversionIntrinsics()71 bool useFP16ConversionIntrinsics() const override { return false; } 72 void getTargetDefines(const LangOptions &Opts, 73 MacroBuilder &Builder) const override; 74 hasFeature(StringRef Feature)75 bool hasFeature(StringRef Feature) const override { 76 return Feature == "directx"; 77 } 78 79 llvm::SmallVector<Builtin::InfosShard> getTargetBuiltins() const override; 80 getClobbers()81 std::string_view getClobbers() const override { return ""; } 82 getGCCRegNames()83 ArrayRef<const char *> getGCCRegNames() const override { return {}; } 84 validateAsmConstraint(const char * & Name,TargetInfo::ConstraintInfo & info)85 bool validateAsmConstraint(const char *&Name, 86 TargetInfo::ConstraintInfo &info) const override { 87 return true; 88 } 89 getGCCRegAliases()90 ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override { 91 return {}; 92 } 93 getBuiltinVaListKind()94 BuiltinVaListKind getBuiltinVaListKind() const override { 95 return TargetInfo::VoidPtrBuiltinVaList; 96 } 97 adjust(DiagnosticsEngine & Diags,LangOptions & Opts,const TargetInfo * Aux)98 void adjust(DiagnosticsEngine &Diags, LangOptions &Opts, 99 const TargetInfo *Aux) override { 100 TargetInfo::adjust(Diags, Opts, Aux); 101 // The static values this addresses do not apply outside of the same thread 102 // This protection is neither available nor needed 103 Opts.ThreadsafeStatics = false; 104 } 105 }; 106 107 } // namespace targets 108 } // namespace clang 109 110 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_DIRECTX_H 111