Author: mstorsjo Date: Fri Oct 12 13:15:51 2018 New Revision: 344412 URL: http://llvm.org/viewvc/llvm-project?rev=344412&view=rev Log: [MinGW] Allow using LTO when lld is used as linker
Differential Revision: https://reviews.llvm.org/D53195 Added: cfe/trunk/test/Driver/mingw-lto.c Modified: cfe/trunk/lib/Driver/ToolChains/MinGW.cpp cfe/trunk/lib/Driver/ToolChains/MinGW.h Modified: cfe/trunk/lib/Driver/ToolChains/MinGW.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/MinGW.cpp?rev=344412&r1=344411&r2=344412&view=diff ============================================================================== --- cfe/trunk/lib/Driver/ToolChains/MinGW.cpp (original) +++ cfe/trunk/lib/Driver/ToolChains/MinGW.cpp Fri Oct 12 13:15:51 2018 @@ -10,6 +10,7 @@ #include "MinGW.h" #include "InputInfo.h" #include "CommonArgs.h" +#include "clang/Config/config.h" #include "clang/Driver/Compilation.h" #include "clang/Driver/Driver.h" #include "clang/Driver/DriverDiagnostic.h" @@ -376,6 +377,10 @@ toolchains::MinGW::MinGW(const Driver &D getFilePaths().push_back(Base + "lib"); // openSUSE getFilePaths().push_back(Base + Arch + "/sys-root/mingw/lib"); + + NativeLLVMSupport = + Args.getLastArgValue(options::OPT_fuse_ld_EQ, CLANG_DEFAULT_LINKER) + .equals_lower("lld"); } bool toolchains::MinGW::IsIntegratedAssemblerDefault() const { return true; } @@ -403,6 +408,10 @@ Tool *toolchains::MinGW::buildLinker() c return new tools::MinGW::Linker(*this); } +bool toolchains::MinGW::HasNativeLLVMSupport() const { + return NativeLLVMSupport; +} + bool toolchains::MinGW::IsUnwindTablesDefault(const ArgList &Args) const { return getArch() == llvm::Triple::x86_64; } Modified: cfe/trunk/lib/Driver/ToolChains/MinGW.h URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/MinGW.h?rev=344412&r1=344411&r2=344412&view=diff ============================================================================== --- cfe/trunk/lib/Driver/ToolChains/MinGW.h (original) +++ cfe/trunk/lib/Driver/ToolChains/MinGW.h Fri Oct 12 13:15:51 2018 @@ -59,6 +59,8 @@ public: MinGW(const Driver &D, const llvm::Triple &Triple, const llvm::opt::ArgList &Args); + bool HasNativeLLVMSupport() const override; + bool IsIntegratedAssemblerDefault() const override; bool IsUnwindTablesDefault(const llvm::opt::ArgList &Args) const override; bool isPICDefault() const override; @@ -99,6 +101,8 @@ private: void findGccLibDir(); llvm::ErrorOr<std::string> findGcc(); llvm::ErrorOr<std::string> findClangRelativeSysroot(); + + bool NativeLLVMSupport; }; } // end namespace toolchains Added: cfe/trunk/test/Driver/mingw-lto.c URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/mingw-lto.c?rev=344412&view=auto ============================================================================== --- cfe/trunk/test/Driver/mingw-lto.c (added) +++ cfe/trunk/test/Driver/mingw-lto.c Fri Oct 12 13:15:51 2018 @@ -0,0 +1,4 @@ +// The default linker doesn't support LLVM bitcode +// RUN: not %clang -target i686-pc-windows-gnu %s -flto -fuse-ld=bfd +// When using lld, this is allowed though. +// RUN: %clang -target i686-pc-windows-gnu -### %s -flto -fuse-ld=lld _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
