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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/PostOrderFunctionAttrs.h"
#include "llvm/Analysis/CallGraph.h"
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/IR/Module.h"
#include "llvm/Pass.h"
#include "llvm/Passes/PassBuilder.h"
#include "llvm/Transforms/IPO.h"
#include "llvm/Transforms/IPO/FunctionAttrs.h"
#include "llvmWrapper/Transforms/InitializePasses.h"
#include "common/LLVMWarningsPop.hpp"
#include "Compiler/IGCPassSupport.h"
using namespace llvm;
namespace IGCLLVM {
PostOrderFunctionAttrsLegacyPassWrapper::PostOrderFunctionAttrsLegacyPassWrapper() : ModulePass(ID) {
initializePostOrderFunctionAttrsLegacyPassWrapperPass(*PassRegistry::getPassRegistry());
PB.registerModuleAnalyses(MAM);
PB.registerCGSCCAnalyses(CGAM);
PB.registerFunctionAnalyses(FAM);
PB.registerLoopAnalyses(LAM);
PB.crossRegisterProxies(LAM, FAM, CGAM, MAM);
}
bool PostOrderFunctionAttrsLegacyPassWrapper::runOnModule(llvm::Module &M) {
// Run the New Pass Manager implementation through the CGSCC adaptor.
CGSCCPassManager CGPM;
CGPM.addPass(PostOrderFunctionAttrsPass());
ModulePassManager MPM;
MPM.addPass(createModuleToPostOrderCGSCCPassAdaptor(std::move(CGPM)));
PreservedAnalyses PA = MPM.run(M, MAM);
return !PA.areAllPreserved();
}
void PostOrderFunctionAttrsLegacyPassWrapper::getAnalysisUsage(AnalysisUsage &AU) const {
// This pass only changes attributes (no IR/CFG structure changes).
AU.setPreservesCFG();
// Do not claim to preserve AA/etc. since attributes affect them.
AU.addPreserved<CallGraphWrapperPass>();
AU.addRequired<TargetLibraryInfoWrapperPass>();
AU.addRequired<CallGraphWrapperPass>();
}
char PostOrderFunctionAttrsLegacyPassWrapper::ID = 0;
Pass *createLegacyWrappedPostOrderFunctionAttrsPass() { return new PostOrderFunctionAttrsLegacyPassWrapper(); }
} // namespace IGCLLVM
using namespace IGCLLVM;
#define PASS_FLAG "postorder-function-attrs-legacy-wrapped"
#define PASS_DESCRIPTION "PostOrder FunctionAttrs (CGSCC) Legacy Wrapped"
#define PASS_CFG_ONLY false
#define PASS_ANALYSIS false
IGC_INITIALIZE_PASS_BEGIN(PostOrderFunctionAttrsLegacyPassWrapper, PASS_FLAG, PASS_DESCRIPTION, PASS_CFG_ONLY,
PASS_ANALYSIS)
IGC_INITIALIZE_PASS_DEPENDENCY(TargetLibraryInfoWrapperPass)
IGC_INITIALIZE_PASS_DEPENDENCY(CallGraphWrapperPass)
IGC_INITIALIZE_PASS_END(PostOrderFunctionAttrsLegacyPassWrapper, PASS_FLAG, PASS_DESCRIPTION, PASS_CFG_ONLY,
PASS_ANALYSIS)
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