diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Passes/PassBuilder.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Passes/PassBuilder.cpp b/llvm/lib/Passes/PassBuilder.cpp index fb56a6f05d3..4845bd2957b 100644 --- a/llvm/lib/Passes/PassBuilder.cpp +++ b/llvm/lib/Passes/PassBuilder.cpp @@ -437,6 +437,11 @@ static void addPGOInstrPasses(ModulePassManager &MPM, bool DebugLogging, MPM.addPass(createModuleToPostOrderCGSCCPassAdaptor(std::move(CGPipeline))); } + // Delete anything that is now dead to make sure that we don't instrument + // dead code. Instrumentation can end up keeping dead code around and + // dramatically increase code size. + MPM.addPass(GlobalDCEPass()); + if (RunProfileGen) { MPM.addPass(PGOInstrumentationGen()); |
