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
20namespace clang {
21namespace targets {
22
23static 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
54class LLVM_LIBRARY_VISIBILITY DirectXTargetInfo : public TargetInfo {
55public:
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(Kind: Triple.getOS());
67 resetDataLayout(DL: "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 }
71 bool useFP16ConversionIntrinsics() const override { return false; }
72 void getTargetDefines(const LangOptions &Opts,
73 MacroBuilder &Builder) const override;
74
75 bool hasFeature(StringRef Feature) const override {
76 return Feature == "directx";
77 }
78
79 llvm::SmallVector<Builtin::InfosShard> getTargetBuiltins() const override;
80
81 std::string_view getClobbers() const override { return ""; }
82
83 ArrayRef<const char *> getGCCRegNames() const override { return {}; }
84
85 bool validateAsmConstraint(const char *&Name,
86 TargetInfo::ConstraintInfo &info) const override {
87 return true;
88 }
89
90 ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override {
91 return {};
92 }
93
94 BuiltinVaListKind getBuiltinVaListKind() const override {
95 return TargetInfo::VoidPtrBuiltinVaList;
96 }
97
98 void adjust(DiagnosticsEngine &Diags, LangOptions &Opts) override {
99 TargetInfo::adjust(Diags, Opts);
100 // The static values this addresses do not apply outside of the same thread
101 // This protection is neither available nor needed
102 Opts.ThreadsafeStatics = false;
103 }
104};
105
106} // namespace targets
107} // namespace clang
108
109#endif // LLVM_CLANG_LIB_BASIC_TARGETS_DIRECTX_H
110