1311116Sdim//== llvm/CodeGen/GlobalISel/InstructionSelect.h -----------------*- C++ -*-==// 2311116Sdim// 3353358Sdim// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4353358Sdim// See https://llvm.org/LICENSE.txt for license information. 5353358Sdim// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6311116Sdim// 7311116Sdim//===----------------------------------------------------------------------===// 8311116Sdim/// \file This file describes the interface of the MachineFunctionPass 9311116Sdim/// responsible for selecting (possibly generic) machine instructions to 10311116Sdim/// target-specific instructions. 11311116Sdim//===----------------------------------------------------------------------===// 12311116Sdim 13311116Sdim#ifndef LLVM_CODEGEN_GLOBALISEL_INSTRUCTIONSELECT_H 14311116Sdim#define LLVM_CODEGEN_GLOBALISEL_INSTRUCTIONSELECT_H 15311116Sdim 16311116Sdim#include "llvm/CodeGen/GlobalISel/InstructionSelector.h" 17311116Sdim#include "llvm/CodeGen/MachineFunctionPass.h" 18311116Sdim 19311116Sdimnamespace llvm { 20311116Sdim/// This pass is responsible for selecting generic machine instructions to 21311116Sdim/// target-specific instructions. It relies on the InstructionSelector provided 22311116Sdim/// by the target. 23311116Sdim/// Selection is done by examining blocks in post-order, and instructions in 24311116Sdim/// reverse order. 25311116Sdim/// 26311116Sdim/// \post for all inst in MF: not isPreISelGenericOpcode(inst.opcode) 27311116Sdimclass InstructionSelect : public MachineFunctionPass { 28311116Sdimpublic: 29311116Sdim static char ID; 30311116Sdim StringRef getPassName() const override { return "InstructionSelect"; } 31311116Sdim 32311116Sdim void getAnalysisUsage(AnalysisUsage &AU) const override; 33311116Sdim 34311116Sdim MachineFunctionProperties getRequiredProperties() const override { 35311116Sdim return MachineFunctionProperties() 36311116Sdim .set(MachineFunctionProperties::Property::IsSSA) 37311116Sdim .set(MachineFunctionProperties::Property::Legalized) 38311116Sdim .set(MachineFunctionProperties::Property::RegBankSelected); 39311116Sdim } 40311116Sdim 41311116Sdim MachineFunctionProperties getSetProperties() const override { 42311116Sdim return MachineFunctionProperties().set( 43311116Sdim MachineFunctionProperties::Property::Selected); 44311116Sdim } 45311116Sdim 46311116Sdim InstructionSelect(); 47311116Sdim 48311116Sdim bool runOnMachineFunction(MachineFunction &MF) override; 49311116Sdim}; 50311116Sdim} // End namespace llvm. 51311116Sdim 52311116Sdim#endif 53