1 //== llvm/CodeGen/GlobalISel/InstructionSelect.h -----------------*- C++ -*-==//
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
8 /// \file This file describes the interface of the MachineFunctionPass
9 /// responsible for selecting (possibly generic) machine instructions to
10 /// target-specific instructions.
11 //===----------------------------------------------------------------------===//
13 #ifndef LLVM_CODEGEN_GLOBALISEL_INSTRUCTIONSELECT_H
14 #define LLVM_CODEGEN_GLOBALISEL_INSTRUCTIONSELECT_H
16 #include "llvm/CodeGen/GlobalISel/InstructionSelector.h"
17 #include "llvm/CodeGen/MachineFunctionPass.h"
20 /// This pass is responsible for selecting generic machine instructions to
21 /// target-specific instructions. It relies on the InstructionSelector provided
23 /// Selection is done by examining blocks in post-order, and instructions in
26 /// \post for all inst in MF: not isPreISelGenericOpcode(inst.opcode)
27 class InstructionSelect : public MachineFunctionPass {
30 StringRef getPassName() const override { return "InstructionSelect"; }
32 void getAnalysisUsage(AnalysisUsage &AU) const override;
34 MachineFunctionProperties getRequiredProperties() const override {
35 return MachineFunctionProperties()
36 .set(MachineFunctionProperties::Property::IsSSA)
37 .set(MachineFunctionProperties::Property::Legalized)
38 .set(MachineFunctionProperties::Property::RegBankSelected);
41 MachineFunctionProperties getSetProperties() const override {
42 return MachineFunctionProperties().set(
43 MachineFunctionProperties::Property::Selected);
48 bool runOnMachineFunction(MachineFunction &MF) override;
50 } // End namespace llvm.