mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 11:13:28 +01:00
064157016e
Added a combiner which can clean up truncs/extends that are created in order to make the types work during legalization. Also moved the combineMerges to the LegalizeCombiner. https://reviews.llvm.org/D36880 llvm-svn: 312158
66 lines
2.0 KiB
C++
66 lines
2.0 KiB
C++
//== llvm/CodeGen/GlobalISel/LegalizePass.h ------------- -*- C++ -*-==//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
/// \file A pass to convert the target-illegal operations created by IR -> MIR
|
|
/// translation into ones the target expects to be able to select. This may
|
|
/// occur in multiple phases, for example G_ADD <2 x i8> -> G_ADD <2 x i16> ->
|
|
/// G_ADD <4 x i16>.
|
|
///
|
|
/// The LegalizeHelper class is where most of the work happens, and is designed
|
|
/// to be callable from other passes that find themselves with an illegal
|
|
/// instruction.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_CODEGEN_GLOBALISEL_LEGALIZEMACHINEIRPASS_H
|
|
#define LLVM_CODEGEN_GLOBALISEL_LEGALIZEMACHINEIRPASS_H
|
|
|
|
#include "llvm/CodeGen/GlobalISel/MachineIRBuilder.h"
|
|
#include "llvm/CodeGen/MachineFunctionPass.h"
|
|
|
|
namespace llvm {
|
|
|
|
class MachineRegisterInfo;
|
|
|
|
class Legalizer : public MachineFunctionPass {
|
|
public:
|
|
static char ID;
|
|
|
|
private:
|
|
|
|
/// Initialize the field members using \p MF.
|
|
void init(MachineFunction &MF);
|
|
|
|
public:
|
|
// Ctor, nothing fancy.
|
|
Legalizer();
|
|
|
|
StringRef getPassName() const override { return "Legalizer"; }
|
|
|
|
void getAnalysisUsage(AnalysisUsage &AU) const override;
|
|
|
|
MachineFunctionProperties getRequiredProperties() const override {
|
|
return MachineFunctionProperties().set(
|
|
MachineFunctionProperties::Property::IsSSA);
|
|
}
|
|
|
|
MachineFunctionProperties getSetProperties() const override {
|
|
return MachineFunctionProperties().set(
|
|
MachineFunctionProperties::Property::Legalized);
|
|
}
|
|
|
|
bool combineExtracts(MachineInstr &MI, MachineRegisterInfo &MRI,
|
|
const TargetInstrInfo &TII);
|
|
|
|
bool runOnMachineFunction(MachineFunction &MF) override;
|
|
};
|
|
} // End namespace llvm.
|
|
|
|
#endif
|