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/*========================== begin_copyright_notice ============================
Copyright (C) 2017-2022 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#include "GASPropagator.h"
#include "common/LLVMWarningsPush.hpp"
#include <llvm/Analysis/AliasAnalysis.h>
#include "llvm/ADT/PostOrderIterator.h"
#include "common/LLVMWarningsPop.hpp"
#define DEBUG_TYPE "gas-resolver"
using namespace llvm;
using namespace IGC;
using namespace IGC::IGCMD;
using namespace llvm::PatternMatch;
namespace IGC {
llvm::FunctionPass *createResolveGASPass();
class GASResolving : public FunctionPass {
const unsigned GAS = ADDRESS_SPACE_GENERIC;
BuilderType *IRB;
GASPropagator *Propagator;
public:
static char ID;
GASResolving() : FunctionPass(ID), IRB(nullptr), Propagator(nullptr) {
initializeGASResolvingPass(*PassRegistry::getPassRegistry());
}
bool runOnFunction(Function &) override;
void getAnalysisUsage(AnalysisUsage &AU) const override {
AU.setPreservesCFG();
AU.addRequired<LoopInfoWrapperPass>();
AU.addRequired<AAResultsWrapperPass>();
AU.addRequired<MetaDataUtilsWrapper>();
}
private:
bool resolveOnFunction(Function *) const;
bool resolveOnBasicBlock(BasicBlock *) const;
bool resolveMemoryFromHost(Function &) const;
bool checkGenericArguments(Function &F) const;
void convertLoadToGlobal(LoadInst *LI) const;
bool isLoadGlobalCandidate(LoadInst *LI) const;
bool canonicalizeAddrSpaceCasts(Function &F) const;
};
} // End namespace IGC
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