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Editing: BasicBlockSectionUtils.h
//===- BasicBlockSectionUtils.h - Utilities for basic block sections --===// // // 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 // //===----------------------------------------------------------------------===// #ifndef LLVM_CODEGEN_BASICBLOCKSECTIONUTILS_H #define LLVM_CODEGEN_BASICBLOCKSECTIONUTILS_H #include "llvm/ADT/STLExtras.h" #include "llvm/Support/CommandLine.h" namespace llvm { extern cl::opt<std::string> BBSectionsColdTextPrefix; class MachineFunction; class MachineBasicBlock; using MachineBasicBlockComparator = function_ref<bool(const MachineBasicBlock &, const MachineBasicBlock &)>; void sortBasicBlocksAndUpdateBranches(MachineFunction &MF, MachineBasicBlockComparator MBBCmp); void avoidZeroOffsetLandingPad(MachineFunction &MF); /// This checks if the source of this function has drifted since this binary was /// profiled previously. /// For now, we are piggy backing on what PGO does to /// detect this with instrumented profiles. PGO emits an hash of the IR and /// checks if the hash has changed. Advanced basic block layout is usually done /// on top of PGO optimized binaries and hence this check works well in /// practice. bool hasInstrProfHashMismatch(MachineFunction &MF); } // end namespace llvm #endif // LLVM_CODEGEN_BASICBLOCKSECTIONUTILS_H
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