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 // Wasm address space values for this target are dummy values, 46 // as it is only enabled for Wasm targets. 47 20, // wasm_funcref 48 }; 49 50 class LLVM_LIBRARY_VISIBILITY DirectXTargetInfo : public TargetInfo { 51 public: 52 DirectXTargetInfo(const llvm::Triple &Triple, const TargetOptions &) 53 : TargetInfo(Triple) { 54 TLSSupported = false; 55 VLASupported = false; 56 LongWidth = LongAlign = 64; 57 AddrSpaceMap = &DirectXAddrSpaceMap; 58 UseAddrSpaceMapMangling = true; 59 HasLegalHalfType = true; 60 HasFloat16 = true; 61 NoAsmVariants = true; 62 PlatformMinVersion = Triple.getOSVersion(); 63 PlatformName = llvm::Triple::getOSTypeName(Triple.getOS()); 64 resetDataLayout("e-m:e-p:32:32-i1:32-i8:8-i16:16-i32:32-i64:64-f16:16-f32:" 65 "32-f64:64-n8:16:32:64"); 66 TheCXXABI.set(TargetCXXABI::Microsoft); 67 } 68 bool useFP16ConversionIntrinsics() const override { return false; } 69 void getTargetDefines(const LangOptions &Opts, 70 MacroBuilder &Builder) const override; 71 72 bool hasFeature(StringRef Feature) const override { 73 return Feature == "directx"; 74 } 75 76 ArrayRef<Builtin::Info> getTargetBuiltins() const override { 77 return std::nullopt; 78 } 79 80 std::string_view getClobbers() const override { return ""; } 81 82 ArrayRef<const char *> getGCCRegNames() const override { 83 return std::nullopt; 84 } 85 86 bool validateAsmConstraint(const char *&Name, 87 TargetInfo::ConstraintInfo &info) const override { 88 return true; 89 } 90 91 ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override { 92 return std::nullopt; 93 } 94 95 BuiltinVaListKind getBuiltinVaListKind() const override { 96 return TargetInfo::VoidPtrBuiltinVaList; 97 } 98 }; 99 100 } // namespace targets 101 } // namespace clang 102 103 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_DIRECTX_H 104