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/*========================== begin_copyright_notice ============================
Copyright (C) 2025 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#include "common/LLVMWarningsPush.hpp"
#include "llvmWrapper/Transforms/IPO/InlineSimple.h"
#include "llvmWrapper/Transforms/IPO/InlineHelper.h"
#include "llvm/Analysis/CGSCCPassManager.h"
#include "llvm/Analysis/AssumptionCache.h"
#include "llvm/Analysis/PostDominators.h"
#include "llvm/Analysis/ProfileSummaryInfo.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/Analysis/InlineCost.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/Analysis/BasicAliasAnalysis.h"
#include "llvm/Transforms/IPO.h"
#include "llvmWrapper/Transforms/IPO/SCCP.h"
#include "llvmWrapper/Transforms/InitializePasses.h"
#include "common/LLVMWarningsPop.hpp"
#include "Compiler/IGCPassSupport.h"
using namespace llvm;
#define DEBUG_TYPE "inline"
namespace IGCLLVM {
SimpleInlinerLegacyPassWrapper::SimpleInlinerLegacyPassWrapper()
: CallGraphSCCPass(ID), Params(llvm::getInlineParams()) {
initializeSimpleInlinerLegacyPassWrapperPass(*PassRegistry::getPassRegistry());
PB.registerLoopAnalyses(LAM);
PB.registerFunctionAnalyses(FAM);
PB.registerCGSCCAnalyses(CGAM);
PB.registerModuleAnalyses(MAM);
PB.crossRegisterProxies(LAM, FAM, CGAM, MAM);
}
SimpleInlinerLegacyPassWrapper::SimpleInlinerLegacyPassWrapper(InlineParams Params)
: CallGraphSCCPass(ID), Params(std::move(Params)) {
initializeSimpleInlinerLegacyPassWrapperPass(*PassRegistry::getPassRegistry());
PB.registerLoopAnalyses(LAM);
PB.registerFunctionAnalyses(FAM);
PB.registerCGSCCAnalyses(CGAM);
PB.registerModuleAnalyses(MAM);
PB.crossRegisterProxies(LAM, FAM, CGAM, MAM);
}
bool SimpleInlinerLegacyPassWrapper::runOnSCC(CallGraphSCC &SCC) {
TTIWP = &getAnalysis<TargetTransformInfoWrapperPass>();
if (skipSCC(SCC))
return false;
bool changed = inlineCalls(SCC);
return changed;
}
InlineCost SimpleInlinerLegacyPassWrapper::getInlineCost(CallBase &CB) {
Function *Callee = CB.getCalledFunction();
TargetTransformInfo &TTI = TTIWP->getTTI(*Callee);
bool RemarksEnabled = false;
const auto &BBs = *CB.getCaller();
if (!BBs.empty()) {
auto DI = OptimizationRemark(DEBUG_TYPE, "", DebugLoc(), &BBs.front());
if (DI.isEnabled())
RemarksEnabled = true;
}
OptimizationRemarkEmitter ORE(CB.getCaller());
std::function<AssumptionCache &(Function &)> GetAssumptionCache = [&](Function &F) -> AssumptionCache & {
return ACT->getAssumptionCache(F);
};
return llvm::getInlineCost(CB, Params, TTI, GetAssumptionCache, GetTLI,
/*GetBFI=*/nullptr, PSI, RemarksEnabled ? &ORE : nullptr);
}
bool SimpleInlinerLegacyPassWrapper::inlineCalls(CallGraphSCC &SCC) {
CallGraph &CG = getAnalysis<CallGraphWrapperPass>().getCallGraph();
ACT = &getAnalysis<AssumptionCacheTracker>();
PSI = &getAnalysis<ProfileSummaryInfoWrapperPass>().getPSI();
GetTLI = [&](Function &F) -> const TargetLibraryInfo & {
return getAnalysis<TargetLibraryInfoWrapperPass>().getTLI();
};
auto GetAssumptionCache = [&](Function &F) -> AssumptionCache & { return ACT->getAssumptionCache(F); };
return IGCLLVM::inlineCallsImpl(
SCC, CG, GetAssumptionCache, PSI, GetTLI, InsertLifetime, [&](CallBase &CB) { return getInlineCost(CB); },
IGCLLVM::LegacyAARGetter(*this), ImportedFunctionsStats);
}
void SimpleInlinerLegacyPassWrapper::getAnalysisUsage(AnalysisUsage &AU) const {
AU.addRequired<TargetTransformInfoWrapperPass>();
AU.addRequired<AssumptionCacheTracker>();
AU.addRequired<ProfileSummaryInfoWrapperPass>();
AU.addRequired<TargetLibraryInfoWrapperPass>();
AU.addUsedIfAvailable<ScopedNoAliasAAWrapperPass>();
AU.addUsedIfAvailable<TypeBasedAAWrapperPass>();
AU.addUsedIfAvailable<GlobalsAAWrapperPass>();
AU.addUsedIfAvailable<ExternalAAWrapperPass>();
CallGraphSCCPass::getAnalysisUsage(AU);
}
char SimpleInlinerLegacyPassWrapper::ID = 0;
Pass *createLegacyWrappedSimpleInlinerPass() {
#if LLVM_VERSION_MAJOR >= 16
return new SimpleInlinerLegacyPassWrapper();
#else
return llvm::createFunctionInliningPass();
#endif
}
Pass *createLegacyWrappedSimpleInlinerPass(int Threshold) {
#if LLVM_VERSION_MAJOR >= 16
return new SimpleInlinerLegacyPassWrapper(llvm::getInlineParams(Threshold));
#else
return llvm::createFunctionInliningPass(Threshold);
#endif
}
Pass *createLegacyWrappedSimpleInlinerPass(unsigned OptLevel, unsigned SizeOptLevel, bool DisableInlineHotCallSite) {
#if LLVM_VERSION_MAJOR >= 16
auto Param = llvm::getInlineParams(OptLevel, SizeOptLevel);
if (DisableInlineHotCallSite)
Param.HotCallSiteThreshold = 0;
return new SimpleInlinerLegacyPassWrapper(Param);
#else
return llvm::createFunctionInliningPass(OptLevel, SizeOptLevel, DisableInlineHotCallSite);
#endif
}
} // namespace IGCLLVM
using namespace IGCLLVM;
#define PASS_FLAG "inline-legacy-wrapped"
#define PASS_DESCRIPTION "Function Integration/Inlining LPM Wrapped"
#define PASS_CFG_ONLY false
#define PASS_ANALYSIS false
IGC_INITIALIZE_PASS_BEGIN(SimpleInlinerLegacyPassWrapper, PASS_FLAG, PASS_DESCRIPTION, PASS_CFG_ONLY, PASS_ANALYSIS)
IGC_INITIALIZE_PASS_DEPENDENCY(AssumptionCacheTracker)
IGC_INITIALIZE_PASS_DEPENDENCY(CallGraphWrapperPass)
IGC_INITIALIZE_PASS_DEPENDENCY(ProfileSummaryInfoWrapperPass)
IGC_INITIALIZE_PASS_DEPENDENCY(TargetTransformInfoWrapperPass)
IGC_INITIALIZE_PASS_DEPENDENCY(TargetLibraryInfoWrapperPass)
IGC_INITIALIZE_PASS_END(SimpleInlinerLegacyPassWrapper, PASS_FLAG, PASS_DESCRIPTION, PASS_CFG_ONLY, PASS_ANALYSIS)
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