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/*========================== begin_copyright_notice ============================
Copyright (C) 2017-2022 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 <llvm/ADT/StringRef.h>
#include "common/LLVMWarningsPop.hpp"
namespace IGC {
/// @brief ExtensionFuncsAnalysis pass used for analyzing if VME functions are used in the
/// different functions in the module and creating metadata that represents
/// the implicit information needed by each function for resolving these function calls
class ExtensionFuncsAnalysis : public llvm::ModulePass, public llvm::InstVisitor<ExtensionFuncsAnalysis> {
public:
// Pass identification, replacement for typeid
static char ID;
/// @brief Constructor
ExtensionFuncsAnalysis();
/// @brief Destructor
~ExtensionFuncsAnalysis() {}
/// @brief Provides name of pass
virtual llvm::StringRef getPassName() const override { return "ExtensionFuncsAnalysis"; }
void getAnalysisUsage(llvm::AnalysisUsage &AU) const override { AU.addRequired<MetaDataUtilsWrapper>(); }
/// @brief Main entry point.
/// Runs on all functions defined in the given module, finds all VME function calls,
/// analyzes them and creates metadata that represents the implicit information needed
/// by each function for resolving these function calls
/// @param M The destination module.
virtual bool runOnModule(llvm::Module &M) override;
/// @brief Function entry point.
/// Finds all VME function calls in this function, analyzes them and creates
/// metadata that represents the implicit information needed by this function
/// for resolving these function calls
/// @param F The destination function.
bool runOnFunction(llvm::Function &F);
/// @brief Call instructions visitor.
/// Checks for VME functions and analyzes it
/// @param CI The call instruction.
void visitCallInst(llvm::CallInst &CI);
static const llvm::StringRef VME_MB_BLOCK_TYPE;
static const llvm::StringRef VME_SUBPIXEL_MODE;
static const llvm::StringRef VME_SAD_ADJUST_MODE;
static const llvm::StringRef VME_SEARCH_PATH_TYPE;
static const llvm::StringRef VME_HELPER_GET_HANDLE;
static const llvm::StringRef VME_HELPER_GET_AS;
private:
/// @brief Marks whether VME information is needed by the current function
bool m_hasVME{};
/// @brief MetaData utils used to generate LLVM metadata
IGCMD::MetaDataUtils *m_pMDUtils = nullptr;
};
} // namespace IGC
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