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/*========================== begin_copyright_notice ============================
Copyright (C) 2017-2023 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#include "GASPropagator.h"
#include "common/LLVMWarningsPush.hpp"
#include "llvm/Analysis/CallGraph.h"
#include "common/LLVMWarningsPop.hpp"
using namespace IGC;
namespace IGC {
llvm::ModulePass* createGASRetValuePropagatorPass();
class GASRetValuePropagator : public ModulePass {
Module* m_module = nullptr;
IGCMD::MetaDataUtils* m_mdUtils = nullptr;
CodeGenContext* m_ctx = nullptr;
GASPropagator* m_Propagator = nullptr;
public:
static char ID;
GASRetValuePropagator() : ModulePass(ID) {
initializeGASRetValuePropagatorPass(*PassRegistry::getPassRegistry());
}
bool runOnModule(Module&) override;
void getAnalysisUsage(AnalysisUsage& AU) const override {
AU.addRequired<MetaDataUtilsWrapper>();
AU.addRequired<CodeGenContextWrapper>();
AU.addRequired<CallGraphWrapperPass>();
AU.addRequired<LoopInfoWrapperPass>();
}
bool propagateReturnValue(Function*&);
std::vector<Function*> findCandidates(CallGraph&);
private:
std::vector<ReturnInst*> getAllRetInstructions(Function&);
void updateFunctionRetInstruction(Function*);
PointerType* getRetValueNonGASType(Function*);
void transferFunctionBody(Function*, Function*);
void updateAllUsesWithNewFunction(Function*, Function*);
void updateMetadata(Function*, Function*);
void updateDwarfAddressSpace(Function *);
DIDerivedType *getDIDerivedTypeWithDwarfAddrspace(DIDerivedType *, unsigned);
Function* createNewFunctionDecl(Function*, Type*);
Function* cloneFunctionWithModifiedRetType(Function*, PointerType*);
};
} // End namespace IGC
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