diff options
Diffstat (limited to 'clang/lib/CodeGen/BackendUtil.cpp')
| -rw-r--r-- | clang/lib/CodeGen/BackendUtil.cpp | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/clang/lib/CodeGen/BackendUtil.cpp b/clang/lib/CodeGen/BackendUtil.cpp index 0f07169ac8b..59114883221 100644 --- a/clang/lib/CodeGen/BackendUtil.cpp +++ b/clang/lib/CodeGen/BackendUtil.cpp @@ -49,6 +49,7 @@ #include "llvm/Transforms/IPO.h" #include "llvm/Transforms/IPO/AlwaysInliner.h" #include "llvm/Transforms/IPO/PassManagerBuilder.h" +#include "llvm/Transforms/IPO/ThinLTOBitcodeWriter.h" #include "llvm/Transforms/Instrumentation.h" #include "llvm/Transforms/ObjCARC.h" #include "llvm/Transforms/Scalar.h" @@ -897,6 +898,7 @@ void EmitAssemblyHelper::EmitAssemblyWithNewPassManager( // create that pass manager here and use it as needed below. legacy::PassManager CodeGenPasses; bool NeedCodeGen = false; + Optional<raw_fd_ostream> ThinLinkOS; // Append any output we need to the pass manager. switch (Action) { @@ -904,9 +906,24 @@ void EmitAssemblyHelper::EmitAssemblyWithNewPassManager( break; case Backend_EmitBC: - MPM.addPass(BitcodeWriterPass(*OS, CodeGenOpts.EmitLLVMUseLists, - CodeGenOpts.EmitSummaryIndex, - CodeGenOpts.EmitSummaryIndex)); + if (CodeGenOpts.EmitSummaryIndex) { + if (!CodeGenOpts.ThinLinkBitcodeFile.empty()) { + std::error_code EC; + ThinLinkOS.emplace(CodeGenOpts.ThinLinkBitcodeFile, EC, + llvm::sys::fs::F_None); + if (EC) { + Diags.Report(diag::err_fe_unable_to_open_output) + << CodeGenOpts.ThinLinkBitcodeFile << EC.message(); + return; + } + } + MPM.addPass( + ThinLTOBitcodeWriterPass(*OS, ThinLinkOS ? &*ThinLinkOS : nullptr)); + } else { + MPM.addPass(BitcodeWriterPass(*OS, CodeGenOpts.EmitLLVMUseLists, + CodeGenOpts.EmitSummaryIndex, + CodeGenOpts.EmitSummaryIndex)); + } break; case Backend_EmitLL: @@ -1029,6 +1046,7 @@ static void runThinLTOBackend(ModuleSummaryIndex *CombinedIndex, Module *M, Conf.CGOptLevel = getCGOptLevel(CGOpts); initTargetOptions(Conf.Options, CGOpts, TOpts, LOpts, HeaderOpts); Conf.SampleProfile = std::move(SampleProfile); + Conf.UseNewPM = CGOpts.ExperimentalNewPassManager; switch (Action) { case Backend_EmitNothing: Conf.PreCodeGenModuleHook = [](size_t Task, const Module &Mod) { |
