6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
76 lines
2.6 KiB
C++
76 lines
2.6 KiB
C++
//== 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/ADT/StringRef.h"
|
|
#include "llvm/CodeGen/MachineFunction.h"
|
|
#include "llvm/CodeGen/MachineFunctionPass.h"
|
|
#include "llvm/Support/CodeGen.h"
|
|
|
|
namespace llvm {
|
|
|
|
class InstructionSelector;
|
|
class GISelKnownBits;
|
|
class BlockFrequencyInfo;
|
|
class ProfileSummaryInfo;
|
|
|
|
/// 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(CodeGenOptLevel OL = CodeGenOptLevel::Default,
|
|
char &PassID = ID);
|
|
|
|
bool runOnMachineFunction(MachineFunction &MF) override;
|
|
bool selectMachineFunction(MachineFunction &MF);
|
|
void setInstructionSelector(InstructionSelector *NewISel) { ISel = NewISel; }
|
|
|
|
protected:
|
|
class MIIteratorMaintainer;
|
|
|
|
InstructionSelector *ISel = nullptr;
|
|
GISelKnownBits *KB = nullptr;
|
|
BlockFrequencyInfo *BFI = nullptr;
|
|
ProfileSummaryInfo *PSI = nullptr;
|
|
|
|
CodeGenOptLevel OptLevel = CodeGenOptLevel::None;
|
|
|
|
bool selectInstr(MachineInstr &MI);
|
|
};
|
|
} // End namespace llvm.
|
|
|
|
#endif
|