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/*========================== begin_copyright_notice ============================
Copyright (C) 2019-2021 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#pragma once
#include "Compiler/CodeGenContextWrapper.hpp"
#include "Compiler/IGCPassSupport.h"
#include "common/LLVMWarningsPush.hpp"
#include <llvm/IR/Constants.h>
#include <llvm/IR/Dominators.h>
#include <llvm/Analysis/DependenceAnalysis.h>
#include <llvm/IR/Function.h>
#include <llvm/IR/InstVisitor.h>
#include <llvm/IR/InstrTypes.h>
#include <llvm/IR/Instructions.h>
#include <llvm/ADT/SmallSet.h>
#include <llvm/Pass.h>
#include "common/LLVMWarningsPop.hpp"
using namespace llvm;
namespace IGC {
class SampleMultiversioning : public llvm::FunctionPass,
public llvm::InstVisitor<SampleMultiversioning> {
public:
static char ID;
CodeGenContext* pContext;
DominatorTree* DT;
SampleMultiversioning(CodeGenContext* pContext);
SampleMultiversioning();
~SampleMultiversioning() {}
virtual llvm::StringRef getPassName() const override {
return "Sample Multiversioning";
}
virtual bool runOnFunction(llvm::Function& F) override;
virtual void getAnalysisUsage(llvm::AnalysisUsage& AU) const override {
AU.addRequired<CodeGenContextWrapper>();
AU.addRequired<llvm::DominatorTreeWrapperPass>();
}
private:
bool isOnlyExtractedAfterSample(Value* SampleInst, SmallVector<Instruction*, 4> & ExtrVals);
bool isOnlyMultiplied(Instruction* Sample, Instruction* Val, SmallSet<Instruction*, 4> & MulVals);
Instruction* getPureFunction(Value* Val);
bool isOnlyMultipliedAfterSample(Instruction* Val, SmallSet<Instruction*, 4> & MulVals);
};
} // namespace IGC
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