mirror of
https://github.com/intel/intel-graphics-compiler.git
synced 2025-10-30 08:18:26 +08:00
72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
/*========================== begin_copyright_notice ============================
|
|
|
|
Copyright (C) 2017-2021 Intel Corporation
|
|
|
|
SPDX-License-Identifier: MIT
|
|
|
|
============================= end_copyright_notice ===========================*/
|
|
|
|
#pragma once
|
|
|
|
#include "common/LLVMWarningsPush.hpp"
|
|
#include "llvm/Pass.h"
|
|
#include "llvm/Analysis/LoopInfo.h"
|
|
#include "common/LLVMWarningsPop.hpp"
|
|
|
|
#include "Compiler/CodeGenPublic.h"
|
|
#include "Compiler/CISACodeGen/WIAnalysis.hpp"
|
|
|
|
namespace IGC {
|
|
namespace IGCMD {
|
|
class MetaDataUtils;
|
|
}
|
|
|
|
/// @brief This pass implements a heuristic to determine whether SIMD32 is profitable.
|
|
class Simd32ProfitabilityAnalysis : public llvm::FunctionPass {
|
|
public:
|
|
static char ID;
|
|
|
|
Simd32ProfitabilityAnalysis();
|
|
|
|
~Simd32ProfitabilityAnalysis() {}
|
|
|
|
virtual llvm::StringRef getPassName() const override { return "Simd32Profitability"; }
|
|
|
|
virtual bool runOnFunction(llvm::Function &F) override;
|
|
|
|
virtual void getAnalysisUsage(llvm::AnalysisUsage &AU) const override {
|
|
AU.setPreservesAll();
|
|
AU.addRequired<WIAnalysis>();
|
|
AU.addRequired<llvm::LoopInfoWrapperPass>();
|
|
AU.addRequired<llvm::PostDominatorTreeWrapperPass>();
|
|
AU.addRequired<MetaDataUtilsWrapper>();
|
|
AU.addRequired<CodeGenContextWrapper>();
|
|
}
|
|
|
|
bool isSimd32Profitable() const { return m_isSimd32Profitable; }
|
|
bool isSimd16Profitable() const { return m_isSimd16Profitable; }
|
|
|
|
private:
|
|
llvm::Function *F;
|
|
llvm::PostDominatorTree *PDT;
|
|
llvm::LoopInfo *LI;
|
|
IGCMD::MetaDataUtils *pMdUtils;
|
|
WIAnalysis *WI;
|
|
bool m_isSimd32Profitable;
|
|
bool m_isSimd16Profitable;
|
|
|
|
unsigned getLoopCyclomaticComplexity();
|
|
bool checkSimd32Profitable(CodeGenContext *);
|
|
bool checkSimd16Profitable(CodeGenContext *);
|
|
|
|
unsigned estimateLoopCount(llvm::Loop *L);
|
|
unsigned estimateLoopCount_CASE1(llvm::Loop *L);
|
|
unsigned estimateLoopCount_CASE2(llvm::Loop *L);
|
|
|
|
bool checkPSSimd32Profitable();
|
|
|
|
void print(llvm::raw_ostream &OS) const;
|
|
};
|
|
|
|
} // namespace IGC
|