| //===- 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" |
| #include "llvm/CodeGen/MachineModuleInfo.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) { |
| runDeltaPass(Test, removeFlagsFromModule, "Reducing Instruction Flags"); |
| } |