Author: dehao Date: Tue Jan 3 18:33:23 2017 New Revision: 290919 URL: http://llvm.org/viewvc/llvm-project?rev=290919&view=rev Log: Add -plugin-opt=sample-profile for thinLTO build.
Summary: ThinLTO needs to pass down the sample profile file path to linker. Reviewers: tejohnson, davidxl, mehdi_amini Subscribers: bruno, cfe-commits Differential Revision: https://reviews.llvm.org/D27832 Added: cfe/trunk/test/Driver/gold-lto-samplepgo.c Modified: cfe/trunk/lib/Driver/Tools.cpp Modified: cfe/trunk/lib/Driver/Tools.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Tools.cpp?rev=290919&r1=290918&r2=290919&view=diff ============================================================================== --- cfe/trunk/lib/Driver/Tools.cpp (original) +++ cfe/trunk/lib/Driver/Tools.cpp Tue Jan 3 18:33:23 2017 @@ -2235,6 +2235,15 @@ static void AddGoldPlugin(const ToolChai UseSeparateSections)) { CmdArgs.push_back("-plugin-opt=-data-sections"); } + + if (Arg *A = Args.getLastArg(options::OPT_fprofile_sample_use_EQ)) { + StringRef FName = A->getValue(); + if (!llvm::sys::fs::exists(FName)) + D.Diag(diag::err_drv_no_such_file) << FName; + else + CmdArgs.push_back( + Args.MakeArgString(Twine("-plugin-opt=sample-profile=") + FName)); + } } /// This is a helper function for validating the optional refinement step Added: cfe/trunk/test/Driver/gold-lto-samplepgo.c URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/gold-lto-samplepgo.c?rev=290919&view=auto ============================================================================== --- cfe/trunk/test/Driver/gold-lto-samplepgo.c (added) +++ cfe/trunk/test/Driver/gold-lto-samplepgo.c Tue Jan 3 18:33:23 2017 @@ -0,0 +1,7 @@ +// RUN: touch %t.o +// +// RUN: %clang -target x86_64-unknown-linux -### %t.o -flto 2>&1 \ +// RUN: -Wl,-plugin-opt=foo -O3 \ +// RUN: -fprofile-sample-use=%s \ +// RUN: | FileCheck %s +// CHECK: -plugin-opt=sample-profile= _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
