diff --git a/clang/lib/Driver/ToolChains/MSVC.cpp b/clang/lib/Driver/ToolChains/MSVC.cpp index bae41fc06c036..d5a7fc7e85230 100644 --- a/clang/lib/Driver/ToolChains/MSVC.cpp +++ b/clang/lib/Driver/ToolChains/MSVC.cpp @@ -232,6 +232,11 @@ void visualstudio::Linker::ConstructJob(Compilation &C, const JobAction &JA, } } + if (C.getDriver().isUsingLTO()) { + if (Arg *A = tools::getLastProfileSampleUseArg(Args)) + CmdArgs.push_back(Args.MakeArgString(std::string("-lto-sample-profile:") + + A->getValue())); + } Args.AddAllArgValues(CmdArgs, options::OPT__SLASH_link); // Control Flow Guard checks diff --git a/clang/test/Driver/cl-link.c b/clang/test/Driver/cl-link.c index 9bf8a8137926d..726bc26a64edd 100644 --- a/clang/test/Driver/cl-link.c +++ b/clang/test/Driver/cl-link.c @@ -71,3 +71,6 @@ // RUN: %clang_cl -m32 -arch:IA32 --target=i386-pc-win32 /Tc%s -fuse-ld=lld -### -fsanitize=address 2>&1 | FileCheck --check-prefix=INFER-LLD %s // INFER-LLD: lld-link // INFER-LLD-NOT: INFERASANLIBS + +// RUN: %clang_cl --target=x86_64-unknown-windows-msvc /Tc%s -flto -fuse-ld=lld -### -fprofile-sample-use=%S/Inputs/file.prof 2>&1 | FileCheck -check-prefix=CHECK-SAMPLE-PROFILE %s +// CHECK-SAMPLE-PROFILE: "-lto-sample-profile:{{.*}}/file.prof"