36 lines
1.3 KiB
C++
36 lines
1.3 KiB
C++
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//===- ReduceInstructionFlagsMIR.cpp - Specialized Delta Pass -------------===//
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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 implements a function which calls the Generic Delta pass in order
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// to reduce uninteresting MachineInstr flags from the MachineFunction.
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//
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//===----------------------------------------------------------------------===//
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#include "ReduceInstructionFlagsMIR.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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static void removeFlagsFromModule(Oracle &O, ReducerWorkItem &WorkItem) {
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for (const Function &F : WorkItem.getModule()) {
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if (auto *MF = WorkItem.MMI->getMachineFunction(F)) {
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for (MachineBasicBlock &MBB : *MF) {
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for (MachineInstr &MI : MBB) {
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// TODO: Should this clear flags individually?
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if (MI.getFlags() != 0 && !O.shouldKeep())
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MI.setFlags(0);
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}
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}
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}
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}
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}
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void llvm::reduceInstructionFlagsMIRDeltaPass(TestRunner &Test) {
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runDeltaPass(Test, removeFlagsFromModule, "Reducing Instruction Flags");
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}
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