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https://github.com/capstone-engine/llvm-capstone.git
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42d758bfa6
Change the return type of `getClobbers` function from `const char*` to `std::string_view`. Update the function usages in CodeGen module. The reasoning of these changes is to remove unsafe `const char*` strings and prevent unnecessary allocations for constructing the `std::string` in usages of `getClobbers()` function. Differential Revision: https://reviews.llvm.org/D148799
104 lines
3.1 KiB
C++
104 lines
3.1 KiB
C++
//===--- DirectX.h - Declare DirectX target feature support -----*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares DXIL TargetInfo objects.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_LIB_BASIC_TARGETS_DIRECTX_H
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#define LLVM_CLANG_LIB_BASIC_TARGETS_DIRECTX_H
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#include "clang/Basic/TargetInfo.h"
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#include "clang/Basic/TargetOptions.h"
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#include "llvm/Support/Compiler.h"
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#include "llvm/TargetParser/Triple.h"
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namespace clang {
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namespace targets {
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static const unsigned DirectXAddrSpaceMap[] = {
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0, // Default
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1, // opencl_global
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3, // opencl_local
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2, // opencl_constant
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0, // opencl_private
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4, // opencl_generic
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5, // opencl_global_device
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6, // opencl_global_host
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0, // cuda_device
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0, // cuda_constant
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0, // cuda_shared
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// SYCL address space values for this map are dummy
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0, // sycl_global
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0, // sycl_global_device
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0, // sycl_global_host
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0, // sycl_local
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0, // sycl_private
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0, // ptr32_sptr
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0, // ptr32_uptr
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0, // ptr64
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3, // hlsl_groupshared
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// Wasm address space values for this target are dummy values,
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// as it is only enabled for Wasm targets.
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20, // wasm_funcref
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};
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class LLVM_LIBRARY_VISIBILITY DirectXTargetInfo : public TargetInfo {
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public:
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DirectXTargetInfo(const llvm::Triple &Triple, const TargetOptions &)
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: TargetInfo(Triple) {
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TLSSupported = false;
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VLASupported = false;
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LongWidth = LongAlign = 64;
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AddrSpaceMap = &DirectXAddrSpaceMap;
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UseAddrSpaceMapMangling = true;
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HasLegalHalfType = true;
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HasFloat16 = true;
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NoAsmVariants = true;
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PlatformMinVersion = Triple.getOSVersion();
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PlatformName = llvm::Triple::getOSTypeName(Triple.getOS());
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resetDataLayout("e-m:e-p:32:32-i1:32-i8:8-i16:16-i32:32-i64:64-f16:16-f32:"
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"32-f64:64-n8:16:32:64");
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TheCXXABI.set(TargetCXXABI::Microsoft);
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}
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bool useFP16ConversionIntrinsics() const override { return false; }
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void getTargetDefines(const LangOptions &Opts,
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MacroBuilder &Builder) const override;
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bool hasFeature(StringRef Feature) const override {
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return Feature == "directx";
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}
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ArrayRef<Builtin::Info> getTargetBuiltins() const override {
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return std::nullopt;
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}
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std::string_view getClobbers() const override { return ""; }
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ArrayRef<const char *> getGCCRegNames() const override {
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return std::nullopt;
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}
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bool validateAsmConstraint(const char *&Name,
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TargetInfo::ConstraintInfo &info) const override {
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return true;
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}
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ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override {
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return std::nullopt;
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}
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BuiltinVaListKind getBuiltinVaListKind() const override {
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return TargetInfo::VoidPtrBuiltinVaList;
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}
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};
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} // namespace targets
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} // namespace clang
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#endif // LLVM_CLANG_LIB_BASIC_TARGETS_DIRECTX_H
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