================ @@ -0,0 +1,65 @@ +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#include "llvm/Transforms/Instrumentation/MarkColdFunctions.h" +#include "llvm/Analysis/BlockFrequencyInfo.h" +#include "llvm/Analysis/ProfileSummaryInfo.h" +#include "llvm/IR/PassManager.h" + +using namespace llvm; + +PreservedAnalyses MarkColdFunctionsPass::run(Module &M, + ModuleAnalysisManager &AM) { + if (ColdType == PGOOptions::ColdFuncAttr::None) + return PreservedAnalyses::all(); + ProfileSummaryInfo &PSI = AM.getResult<ProfileSummaryAnalysis>(M); + if (!PSI.hasProfileSummary()) + return PreservedAnalyses::all(); + FunctionAnalysisManager &FAM = + AM.getResult<FunctionAnalysisManagerModuleProxy>(M).getManager(); + bool MadeChange = false; + for (Function &F : M) { + if (F.isDeclaration()) + continue; + BlockFrequencyInfo &BFI = FAM.getResult<BlockFrequencyAnalysis>(F); + if (!PSI.isFunctionColdInCallGraph(&F, BFI)) ---------------- david-xl wrote:
The same optimization strategy should also be applied to function already marked with cold attribute (either by user or previous passes). https://github.com/llvm/llvm-project/pull/69030 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
