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/*========================== begin_copyright_notice ============================
Copyright (C) 2021 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#pragma once
#include "Compiler/MetaDataUtilsWrapper.h"
#include "common/LLVMWarningsPush.hpp"
#include <llvm/Pass.h>
#include <llvm/IR/InstVisitor.h>
#include "common/LLVMWarningsPop.hpp"
#include <unordered_set>
namespace IGC
{
/// @brief ResolveSampledImageBuiltins pass is used for resolving getter builtins operating on VMEImageINTEL and SampledImage objects.
/// SPIR-V Friendly IR represents OpVMEImageINTEL and OpSampledImage opcodes as a functions returning global pointer to opaque type.
/// Since it's not convenient to allocate global memory within BiFModule, these builtins are just declared there and resolved in this pass.
class ResolveSampledImageBuiltins : public llvm::ModulePass, public llvm::InstVisitor<ResolveSampledImageBuiltins>
{
public:
static char ID;
ResolveSampledImageBuiltins();
~ResolveSampledImageBuiltins() {}
virtual llvm::StringRef getPassName() const override
{
return "ResolveSampledImageBuiltins";
}
virtual void getAnalysisUsage(llvm::AnalysisUsage &AU) const override
{
AU.addRequired<MetaDataUtilsWrapper>();
}
virtual bool runOnModule(llvm::Module& M) override;
void visitCallInst(llvm::CallInst& CI);
static const llvm::StringRef GET_IMAGE;
static const llvm::StringRef GET_SAMPLER;
private:
llvm::Value* lowerGetImage(llvm::CallInst& CI);
llvm::Value* lowerGetSampler(llvm::CallInst& CI);
bool m_changed = false;
ModuleMetaData* modMD = nullptr;
std::unordered_set<llvm::CallInst*> m_builtinsToRemove;
};
} // namespace IGC
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