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/*========================== begin_copyright_notice ============================
Copyright (C) 2017-2021 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#pragma once
#include "Compiler/MetaDataUtilsWrapper.h"
#include "Compiler/CodeGenContextWrapper.hpp"
#include "common/LLVMWarningsPush.hpp"
#include <llvm/Pass.h>
#include "common/LLVMWarningsPop.hpp"
#include "AdaptorOCL/CLElfLib/ElfReader.h"
#include <vector>
#include <set>
#include <queue>
namespace IGC {
/// This pass imports built-in functions from source module to destination module.
class BIImport : public llvm::ModulePass {
public:
// Pass identification, replacement for typeid.
static char ID;
/// @brief Constructor
BIImport();
/// @brief analyses used
virtual void getAnalysisUsage(llvm::AnalysisUsage &AU) const override {
AU.addRequired<MetaDataUtilsWrapper>();
AU.addRequired<CodeGenContextWrapper>();
}
/// @brief Provides name of pass
virtual llvm::StringRef getPassName() const override { return "BIImport"; }
/// @brief Main entry point.
/// Find all builtins to import, and import them along with callees and globals.
/// @param M The destination module.
bool runOnModule(llvm::Module &M) override;
static void supportOldManglingSchemes(llvm::Module &M);
static std::unique_ptr<llvm::Module> Construct(llvm::Module &M, CLElfLib::CElfReader *pElfReader, bool hasSizet);
protected:
// Type used to hold a vector of Functions and augment it during traversal.
typedef std::vector<llvm::Function *> TFunctionsVec;
/// @brief Get all the functions called by given function.
/// @param [IN] pFunc The given function.
/// @param [OUT] calledFuncs The list of all functions called by pFunc.
static void GetCalledFunctions(const llvm::Function *pFunc, TFunctionsVec &calledFuncs);
/// @brief Remove function bitcasts that sometimes may appear due to the changed in the way
/// the BiFs are linked. We can remove this code once llvm implements typeless pointers.
void removeFunctionBitcasts(llvm::Module &M);
/// @brief Initialize values for global flags needed for the built-ins (FlushDenormal).
/// Only initializes flags that the built-ins need.
void InitializeBIFlags(llvm::Module &M);
/// @brief Search through all builtin modules for the specified function.
/// @param funcName - name of func to search for.
static llvm::Function *GetBuiltinFunction(llvm::StringRef funcName, llvm::Module *GenericModule);
/// @brief Read elf Header file that is constructed by Build Packager and write to a DenseMap.
static void WriteElfHeaderToMap(llvm::DenseMap<llvm::StringRef, int> &Map, char *pData, size_t dataSize);
/// @brief Fix SPIR builtins return type
void fixSPIRFunctionsReturnType(llvm::Module &M);
/// @brief Fix invalid bitcasts generated by older Clang
void fixInvalidBitcasts(llvm::Module &M);
};
} // namespace IGC
extern "C" llvm::ModulePass *createBuiltInImportPass();
namespace IGC {
class PreBIImportAnalysis : public llvm::ModulePass {
public:
// Pass identification, replacement for typeid
static char ID;
/// @brief Constructor
PreBIImportAnalysis();
/// @brief Destructor
~PreBIImportAnalysis() {}
/// @brief Provides name of pass
virtual llvm::StringRef getPassName() const override { return "PreBIImportAnalysis"; }
void getAnalysisUsage(llvm::AnalysisUsage &AU) const override {
AU.addRequired<MetaDataUtilsWrapper>();
AU.addRequired<CodeGenContextWrapper>();
}
/// @brief Main entry point.
/// @param M The destination module.
virtual bool runOnModule(llvm::Module &M) override;
static const llvm::StringRef OCL_GET_GLOBAL_OFFSET;
static const llvm::StringRef OCL_GET_LOCAL_ID;
static const llvm::StringRef OCL_GET_GROUP_ID;
static const llvm::StringRef OCL_GET_SUBGROUP_ID_IGC_SPVIR;
static const llvm::StringRef OCL_GET_SUBGROUP_ID_KHR_SPVIR;
static const llvm::StringRef OCL_GET_SUBGROUP_ID;
static const llvm::StringRef OCL_SUBGROUP_BLOCK_PREFIX;
static const llvm::StringRef OCL_SUBGROUP_IMAGE_BLOCK_PREFIX;
};
} // namespace IGC
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