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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 "common/LLVMWarningsPush.hpp"
#include <llvm/Pass.h>
#include <llvm/IR/DataLayout.h>
#include <llvm/ADT/MapVector.h>
#include <llvm/ADT/SetVector.h>
#include <llvm/ADT/StringRef.h>
#include <llvm/Analysis/CallGraph.h>
#include "common/LLVMWarningsPop.hpp"
#include <map>
#include <set>
#include <unordered_set>
namespace IGC {
typedef llvm::SetVector<llvm::GlobalVariable *> GlobalVariableSet;
/// @brief This pass resolves references to inline local address space variables
class InlineLocalsResolution : public llvm::ModulePass {
public:
// Pass identification, replacement for typeid
static char ID;
/// @brief Constructor
InlineLocalsResolution();
/// @brief Destructor
~InlineLocalsResolution() {}
/// @brief Provides name of pass
virtual llvm::StringRef getPassName() const override { return "InlineLocalsResolutionPass"; }
/// @brief Main entry point.
/// @param M The destination module.
virtual bool runOnModule(llvm::Module &M) override;
virtual void getAnalysisUsage(llvm::AnalysisUsage &AU) const override {
AU.setPreservesCFG();
AU.addRequired<MetaDataUtilsWrapper>();
AU.addRequired<CodeGenContextWrapper>();
AU.addRequired<llvm::CallGraphWrapperPass>();
}
protected:
void filterGlobals(llvm::Module &);
bool unusedGlobal(llvm::Value *V, std::unordered_set<llvm::Value *> &unusedNodes);
void collectInfoOnSharedLocalMem(llvm::Module &);
void computeOffsetList(llvm::Module &, llvm::MapVector<llvm::Function *, unsigned int> &);
void traverseCGN(const llvm::CallGraphNode &);
private:
llvm::MapVector<llvm::Function *, GlobalVariableSet> m_FuncToVarsMap;
llvm::MapVector<llvm::Function *, unsigned int> m_FuncToMemPoolSizeMap;
std::set<llvm::Function *> m_chkSet;
llvm::GlobalVariable *m_pGV;
};
} // namespace IGC
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