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/*========================== begin_copyright_notice ============================
Copyright (C) 2025 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#include "common/LLVMWarningsPush.hpp"
#include "llvm/Transforms/Scalar/DeadStoreElimination.h"
#include "llvm/Analysis/AssumptionCache.h"
#include "llvm/Analysis/GlobalsModRef.h"
#include "llvm/Analysis/MemorySSAUpdater.h"
#include "llvm/Analysis/PostDominators.h"
#include "llvm/Transforms/Scalar.h"
#include "llvmWrapper/Transforms/Scalar/DeadStoreElimination.h"
#include "llvmWrapper/Transforms/InitializePasses.h"
#include "common/LLVMWarningsPop.hpp"
#include "Compiler/IGCPassSupport.h"
using namespace llvm;
namespace IGCLLVM {
DSELegacyPassWrapper::DSELegacyPassWrapper() : FunctionPass(ID) {
initializeDSELegacyPassWrapperPass(*PassRegistry::getPassRegistry());
PB.registerLoopAnalyses(LAM);
PB.registerFunctionAnalyses(FAM);
PB.registerCGSCCAnalyses(CGAM);
PB.registerModuleAnalyses(MAM);
PB.crossRegisterProxies(LAM, FAM, CGAM, MAM);
}
bool DSELegacyPassWrapper::runOnFunction(Function &F) {
if (skipFunction(F))
return false;
// Run the New Pass Manager implementation of the pass.
DSEPass Implementation;
Implementation.run(F, FAM);
return true;
}
void DSELegacyPassWrapper::getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesCFG();
AU.addRequired<AAResultsWrapperPass>();
AU.addRequired<TargetLibraryInfoWrapperPass>();
AU.addPreserved<GlobalsAAWrapperPass>();
AU.addRequired<DominatorTreeWrapperPass>();
AU.addPreserved<DominatorTreeWrapperPass>();
AU.addRequired<PostDominatorTreeWrapperPass>();
AU.addRequired<MemorySSAWrapperPass>();
AU.addPreserved<PostDominatorTreeWrapperPass>();
AU.addPreserved<MemorySSAWrapperPass>();
AU.addRequired<LoopInfoWrapperPass>();
AU.addPreserved<LoopInfoWrapperPass>();
AU.addRequired<AssumptionCacheTracker>();
}
char DSELegacyPassWrapper::ID = 0;
FunctionPass *createLegacyWrappedDeadStoreEliminationPass() {
#if LLVM_VERSION_MAJOR > 16 && !defined(IGC_LLVM_TRUNK_REVISION)
return new DSELegacyPassWrapper();
#else
return llvm::createDeadStoreEliminationPass();
#endif
}
} // namespace IGCLLVM
using namespace IGCLLVM;
#define PASS_FLAG "dse-legacy-wrapped"
#define PASS_DESCRIPTION "Dead Store Elimination LPM Wrapped"
#define PASS_CFG_ONLY false
#define PASS_ANALYSIS false
IGC_INITIALIZE_PASS_BEGIN(DSELegacyPassWrapper, PASS_FLAG, PASS_DESCRIPTION, PASS_CFG_ONLY, PASS_ANALYSIS)
IGC_INITIALIZE_PASS_DEPENDENCY(DominatorTreeWrapperPass)
IGC_INITIALIZE_PASS_DEPENDENCY(PostDominatorTreeWrapperPass)
IGC_INITIALIZE_PASS_DEPENDENCY(AAResultsWrapperPass)
IGC_INITIALIZE_PASS_DEPENDENCY(GlobalsAAWrapperPass)
IGC_INITIALIZE_PASS_DEPENDENCY(MemorySSAWrapperPass)
IGC_INITIALIZE_PASS_DEPENDENCY(MemoryDependenceWrapperPass)
IGC_INITIALIZE_PASS_DEPENDENCY(TargetLibraryInfoWrapperPass)
IGC_INITIALIZE_PASS_DEPENDENCY(LoopInfoWrapperPass)
IGC_INITIALIZE_PASS_DEPENDENCY(AssumptionCacheTracker)
IGC_INITIALIZE_PASS_END(DSELegacyPassWrapper, PASS_FLAG, PASS_DESCRIPTION, PASS_CFG_ONLY, PASS_ANALYSIS)
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