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