63ecd2a725
This fixes https://github.com/llvm/llvm-project/issues/57589, and aligns
Clang with the behavior of current versions of gcc. There is a new
option, -mdaz-ftz, to control the linking of the file that sets FTZ/DAZ
on startup, and this flag is on by default if -ffast-math is present and
-shared isn't.
This also partially reverts fa7cd549d6 in that it disables the attempt
to set the IR denormal-fp-math attribute based on whether or not
-ffast-math is applied as it is insufficiently reliable.
75 lines
2.9 KiB
C++
75 lines
2.9 KiB
C++
//===--- Linux.h - Linux ToolChain Implementations --------------*- 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_LINUX_H
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#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_LINUX_H
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#include "Gnu.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 LLVM_LIBRARY_VISIBILITY Linux : public Generic_ELF {
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public:
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Linux(const Driver &D, const llvm::Triple &Triple,
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const llvm::opt::ArgList &Args);
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bool HasNativeLLVMSupport() const override;
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std::string getMultiarchTriple(const Driver &D,
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const llvm::Triple &TargetTriple,
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StringRef SysRoot) 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 addLibStdCxxIncludePaths(
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const llvm::opt::ArgList &DriverArgs,
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llvm::opt::ArgStringList &CC1Args) const override;
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void AddCudaIncludeArgs(const llvm::opt::ArgList &DriverArgs,
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llvm::opt::ArgStringList &CC1Args) const override;
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void AddHIPIncludeArgs(const llvm::opt::ArgList &DriverArgs,
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llvm::opt::ArgStringList &CC1Args) const override;
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void AddHIPRuntimeLibArgs(const llvm::opt::ArgList &Args,
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llvm::opt::ArgStringList &CmdArgs) 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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RuntimeLibType GetDefaultRuntimeLibType() const override;
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unsigned GetDefaultDwarfVersion() const override;
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CXXStdlibType GetDefaultCXXStdlibType() const override;
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bool
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IsAArch64OutlineAtomicsDefault(const llvm::opt::ArgList &Args) const override;
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bool isPIEDefault(const llvm::opt::ArgList &Args) const override;
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bool IsMathErrnoDefault() const override;
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SanitizerMask getSupportedSanitizers() const override;
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void addProfileRTLibs(const llvm::opt::ArgList &Args,
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llvm::opt::ArgStringList &CmdArgs) const override;
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std::string computeSysRoot() const override;
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std::string getDynamicLinker(const llvm::opt::ArgList &Args) const override;
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void addExtraOpts(llvm::opt::ArgStringList &CmdArgs) const override;
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std::vector<std::string> ExtraOpts;
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const char *getDefaultLinker() const override;
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protected:
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Tool *buildAssembler() const override;
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Tool *buildLinker() const override;
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Tool *buildStaticLibTool() const override;
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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_LINUX_H
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