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12a8bc09ca
This pass should be the last machine function pass in pipeline, also ignore `PI.runAfterPass(*P, MF, PassPA);` to avoid accessing a dangling reference.
23 lines
851 B
C++
23 lines
851 B
C++
//===- FreeMachineFunction.cpp --------------------------------------------===//
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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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#include "llvm/CodeGen/FreeMachineFunction.h"
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#include "llvm/CodeGen/MachineFunction.h"
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#include "llvm/CodeGen/MachineModuleInfo.h"
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using namespace llvm;
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PreservedAnalyses
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FreeMachineFunctionPass::run(MachineFunction &MF,
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MachineFunctionAnalysisManager &MFAM) {
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auto &MMI = MF.getMMI();
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MFAM.invalidate(MF, PreservedAnalyses::none());
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MMI.deleteMachineFunctionFor(MF.getFunction()); // MF is dangling now.
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return PreservedAnalyses::none();
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}
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