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/*========================== begin_copyright_notice ============================
Copyright (C) 2017-2021 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
// vim:ts=2:sw=2::et:
#ifndef LEGALIZER_PeepholeTypeLegalizer_H
#define LEGALIZER_PeepholeTypeLegalizer_H
#include "common/LLVMWarningsPush.hpp"
#include "llvm/IR/Function.h"
#include "llvmWrapper/IR/IRBuilder.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Type.h"
#include "llvm/IR/Value.h"
#include "llvm/Pass.h"
#include "llvm/Analysis/TargetFolder.h"
#include "llvm/IR/InstVisitor.h"
#include "common/LLVMWarningsPop.hpp"
#include "common/Types.hpp"
namespace IGC {
namespace Legalizer {
using namespace llvm;
class PeepholeTypeLegalizer : public FunctionPass, public InstVisitor<PeepholeTypeLegalizer> {
IGCLLVM::IRBuilder<>* m_builder;
Module* TheModule;
Function* TheFunction;
public:
static char ID;
PeepholeTypeLegalizer();
bool runOnFunction(Function& F) override;
void visitInstruction(Instruction& I);
void visitLoadInst(LoadInst& LI);
void visitStoreInst(StoreInst& SI);
void legalizePhiInstruction(Instruction& I);
void legalizeUnaryInstruction(Instruction& I);
void legalizeBinaryOperator(Instruction& I);
void legalizeExtractElement(Instruction& I);
void cleanupZExtInst(Instruction& I);
void cleanupTruncInst(Instruction& I);
void cleanupBitCastInst(Instruction& I);
private:
bool NonBitcastInstructionsLegalized;
bool CastInst_ZExtWithIntermediateIllegalsEliminated;
bool CastInst_TruncWithIntermediateIllegalsEliminated;
bool Bitcast_BitcastWithIntermediateIllegalsEliminated;
bool Changed;
bool MustLegalizeScratch = false;
const DataLayout* DL;
void getAnalysisUsage(AnalysisUsage& AU) const override;
StringRef getPassName() const override {
return "PeepholeTypeLegalizer";
}
LLVMContext& getContext() const { return TheModule->getContext(); }
Module* getModule() const { return TheModule; }
Function* getFunction() const { return TheFunction; }
bool isLegalInteger(unsigned int bitWidth) {
if (bitWidth == 64)
return true;
else
return DL->isLegalInteger(bitWidth);
}
};
} // End Legalizer namespace
} // End IGC namespace
#endif // LEGALIZER_TYPELEGALIZER_H
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