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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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