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/ADT/Triple.h" 18 #include "llvm/Support/Compiler.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 }; 46 47 class LLVM_LIBRARY_VISIBILITY DirectXTargetInfo : public TargetInfo { 48 public: 49 DirectXTargetInfo(const llvm::Triple &Triple, const TargetOptions &) 50 : TargetInfo(Triple) { 51 TLSSupported = false; 52 VLASupported = false; 53 LongWidth = LongAlign = 64; 54 AddrSpaceMap = &DirectXAddrSpaceMap; 55 UseAddrSpaceMapMangling = true; 56 HasLegalHalfType = true; 57 HasFloat16 = true; 58 NoAsmVariants = true; 59 PlatformMinVersion = Triple.getOSVersion(); 60 PlatformName = llvm::Triple::getOSTypeName(Triple.getOS()); 61 resetDataLayout("e-m:e-p:32:32-i1:32-i8:8-i16:16-i32:32-i64:64-f16:16-f32:" 62 "32-f64:64-n8:16:32:64"); 63 TheCXXABI.set(TargetCXXABI::Microsoft); 64 } 65 bool useFP16ConversionIntrinsics() const override { return false; } 66 void getTargetDefines(const LangOptions &Opts, 67 MacroBuilder &Builder) const override; 68 69 bool hasFeature(StringRef Feature) const override { 70 return Feature == "directx"; 71 } 72 73 ArrayRef<Builtin::Info> getTargetBuiltins() const override { 74 return std::nullopt; 75 } 76 77 const char *getClobbers() const override { return ""; } 78 79 ArrayRef<const char *> getGCCRegNames() const override { 80 return std::nullopt; 81 } 82 83 bool validateAsmConstraint(const char *&Name, 84 TargetInfo::ConstraintInfo &info) const override { 85 return true; 86 } 87 88 ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override { 89 return std::nullopt; 90 } 91 92 BuiltinVaListKind getBuiltinVaListKind() const override { 93 return TargetInfo::VoidPtrBuiltinVaList; 94 } 95 }; 96 97 } // namespace targets 98 } // namespace clang 99 100 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_DIRECTX_H 101