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Some code gen passes use MBFIWrapper to keep track of the frequency of new blocks. This was not taken into account and could lead to incorrect frequencies as MBFI silently returns zero frequency for unknown/new blocks. Add a variant for MBFIWrapper in the PGSO query interface. Depends on D73494.
47 lines
1.9 KiB
C++
47 lines
1.9 KiB
C++
//===- MachineSizeOpts.h - machine size optimization ------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains some shared machine IR code size optimization related
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// code.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_MACHINE_SIZEOPTS_H
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#define LLVM_CODEGEN_MACHINE_SIZEOPTS_H
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#include "llvm/Transforms/Utils/SizeOpts.h"
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namespace llvm {
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class ProfileSummaryInfo;
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class MachineBasicBlock;
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class MachineBlockFrequencyInfo;
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class MachineFunction;
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class MBFIWrapper;
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/// Returns true if machine function \p MF is suggested to be size-optimized
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/// based on the profile.
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bool shouldOptimizeForSize(const MachineFunction *MF, ProfileSummaryInfo *PSI,
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const MachineBlockFrequencyInfo *BFI,
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PGSOQueryType QueryType = PGSOQueryType::Other);
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/// Returns true if machine basic block \p MBB is suggested to be size-optimized
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/// based on the profile.
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bool shouldOptimizeForSize(const MachineBasicBlock *MBB,
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ProfileSummaryInfo *PSI,
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const MachineBlockFrequencyInfo *MBFI,
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PGSOQueryType QueryType = PGSOQueryType::Other);
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/// Returns true if machine basic block \p MBB is suggested to be size-optimized
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/// based on the profile.
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bool shouldOptimizeForSize(const MachineBasicBlock *MBB,
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ProfileSummaryInfo *PSI,
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MBFIWrapper *MBFIWrapper,
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PGSOQueryType QueryType = PGSOQueryType::Other);
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} // end namespace llvm
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#endif // LLVM_CODEGEN_MACHINE_SIZEOPTS_H
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