reference, declaration → definition
definition → references, declarations, derived classes, virtual overrides
reference to multiple definitions → definitions
unreferenced

    1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   42
   43
   44
   45
   46
   47
   48
   49
   50
   51
   52

//== llvm/CodeGen/GlobalISel/InstructionSelect.h -----------------*- C++ -*-==//
//
// 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
//
//===----------------------------------------------------------------------===//
/// \file This file describes the interface of the MachineFunctionPass
/// responsible for selecting (possibly generic) machine instructions to
/// target-specific instructions.
//===----------------------------------------------------------------------===//

#ifndef LLVM_CODEGEN_GLOBALISEL_INSTRUCTIONSELECT_H
#define LLVM_CODEGEN_GLOBALISEL_INSTRUCTIONSELECT_H

#include "llvm/CodeGen/GlobalISel/InstructionSelector.h"
#include "llvm/CodeGen/MachineFunctionPass.h"

namespace llvm {
/// This pass is responsible for selecting generic machine instructions to
/// target-specific instructions.  It relies on the InstructionSelector provided
/// by the target.
/// Selection is done by examining blocks in post-order, and instructions in
/// reverse order.
///
/// \post for all inst in MF: not isPreISelGenericOpcode(inst.opcode)
class InstructionSelect : public MachineFunctionPass {
public:
  static char ID;
  StringRef getPassName() const override { return "InstructionSelect"; }

  void getAnalysisUsage(AnalysisUsage &AU) const override;

  MachineFunctionProperties getRequiredProperties() const override {
    return MachineFunctionProperties()
        .set(MachineFunctionProperties::Property::IsSSA)
        .set(MachineFunctionProperties::Property::Legalized)
        .set(MachineFunctionProperties::Property::RegBankSelected);
  }

  MachineFunctionProperties getSetProperties() const override {
    return MachineFunctionProperties().set(
        MachineFunctionProperties::Property::Selected);
  }

  InstructionSelect();

  bool runOnMachineFunction(MachineFunction &MF) override;
};
} // End namespace llvm.

#endif