194ec844f5
Previously, we linked in the ROCm device libraries which provide math and other utility functions late. This is not stricly correct as this library contains several flags that are only set per-TU, such as fast math or denormalization. This patch changes this to pass the bitcode libraries per-TU using the same method we use for the CUDA libraries. This has the advantage that we correctly propagate attributes making this implementation more correct. Additionally, many annoying unused functions were not being fully removed during LTO. This lead to erroneous warning messages and remarks on unused functions. I am not sure if not finding these libraries should be a hard error. let me know if it should be demoted to a warning saying that some device utilities will not work without them. Reviewed By: JonChesterfield Differential Revision: https://reviews.llvm.org/D133726
68 lines
2.3 KiB
C++
68 lines
2.3 KiB
C++
//===- AMDGPUOpenMP.h - AMDGPUOpenMP ToolChain Implementation -*- 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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#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_AMDGPUOPENMP_H
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#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_AMDGPUOPENMP_H
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#include "AMDGPU.h"
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#include "clang/Driver/Tool.h"
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#include "clang/Driver/ToolChain.h"
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namespace clang {
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namespace driver {
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namespace toolchains {
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class AMDGPUOpenMPToolChain;
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}
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namespace toolchains {
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class LLVM_LIBRARY_VISIBILITY AMDGPUOpenMPToolChain final
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: public ROCMToolChain {
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public:
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AMDGPUOpenMPToolChain(const Driver &D, const llvm::Triple &Triple,
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const ToolChain &HostTC,
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const llvm::opt::ArgList &Args);
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const llvm::Triple *getAuxTriple() const override {
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return &HostTC.getTriple();
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}
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llvm::opt::DerivedArgList *
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TranslateArgs(const llvm::opt::DerivedArgList &Args, StringRef BoundArch,
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Action::OffloadKind DeviceOffloadKind) const override;
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void
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addClangTargetOptions(const llvm::opt::ArgList &DriverArgs,
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llvm::opt::ArgStringList &CC1Args,
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Action::OffloadKind DeviceOffloadKind) const override;
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void addClangWarningOptions(llvm::opt::ArgStringList &CC1Args) const override;
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CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const override;
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void
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AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs,
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llvm::opt::ArgStringList &CC1Args) const override;
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void AddIAMCUIncludeArgs(const llvm::opt::ArgList &DriverArgs,
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llvm::opt::ArgStringList &CC1Args) const override;
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SanitizerMask getSupportedSanitizers() const override;
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VersionTuple
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computeMSVCVersion(const Driver *D,
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const llvm::opt::ArgList &Args) const override;
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llvm::SmallVector<BitCodeLibraryInfo, 12>
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getDeviceLibs(const llvm::opt::ArgList &Args) const override;
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const ToolChain &HostTC;
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};
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} // end namespace toolchains
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} // end namespace driver
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} // end namespace clang
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#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_AMDGPUOPENMP_H
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