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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/CallGraph.h>
#include "common/LLVMWarningsPop.hpp"
using namespace IGC;
namespace IGC {
llvm::ModulePass* createLowerGPCallArg();
class LowerGPCallArg : public ModulePass
{
public:
static char ID;
LowerGPCallArg() : ModulePass(ID)
{
initializeLowerGPCallArgPass(*PassRegistry::getPassRegistry());
}
bool runOnModule(Module&) override;
virtual void getAnalysisUsage(llvm::AnalysisUsage& AU) const override
{
AU.addRequired<CodeGenContextWrapper>();
AU.addRequired<MetaDataUtilsWrapper>();
AU.addRequired<CallGraphWrapperPass>();
AU.addRequired<LoopInfoWrapperPass>();
}
virtual StringRef getPassName() const override
{
return "LowerGenericPointerCallArgs";
}
private:
//
// Functions to be updated.
// NewArgs keeps track of generic pointer arguments: arg number and address space
//
struct ArgDesc {
unsigned int argNo;
unsigned int addrSpace;
};
using GenericPointerArgs = std::vector<ArgDesc>;
IGCMD::MetaDataUtils* m_mdUtils = nullptr;
CodeGenContext* m_ctx = nullptr;
Module* m_module = nullptr;
std::optional<unsigned> getOriginAddressSpace(Function* func, unsigned argNo);
void updateFunctionArgs(Function* oldFunc, Function* newFunc);
void updateAllUsesWithNewFunction(Function* oldFunc, Function* newFunc);
void updateMetadata(Function* oldFunc, Function* newFunc);
Function* createFuncWithLoweredArgs(Function* F, GenericPointerArgs& argsInfo);
std::vector<Function*> findCandidates(CallGraph& CG);
};
} // End namespace IGC
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