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/*========================== begin_copyright_notice ============================
Copyright (C) 2023 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#include "Compiler/IGCPassSupport.h"
#include "common/LLVMWarningsPush.hpp"
#include "llvm/IR/Instructions.h"
#include "common/LLVMWarningsPop.hpp"
#include "SerializePrintMetaDataPass.h"
#include <Probe/Assertion.h>
using namespace llvm;
namespace IGC {
#define PASS_FLAG "igc-serialize-metadata"
#define PASS_DESCRIPTION "Serialize metadata to module and print metadata"
#define PASS_CFG_ONLY false
#define PASS_ANALYSIS false
IGC_INITIALIZE_PASS_BEGIN(SerializePrintMetaDataPass, PASS_FLAG, PASS_DESCRIPTION, PASS_CFG_ONLY, PASS_ANALYSIS)
IGC_INITIALIZE_PASS_DEPENDENCY(MetaDataUtilsWrapper)
IGC_INITIALIZE_PASS_END(SerializePrintMetaDataPass, PASS_FLAG, PASS_DESCRIPTION, PASS_CFG_ONLY, PASS_ANALYSIS)
char SerializePrintMetaDataPass::ID = 0;
SerializePrintMetaDataPass::SerializePrintMetaDataPass(llvm::raw_ostream *Stream) : Stream(Stream), ModulePass(ID) {
initializeSerializePrintMetaDataPassPass(*PassRegistry::getPassRegistry());
}
bool SerializePrintMetaDataPass::runOnModule(llvm::Module &M) {
bool Changed = false;
if (auto *MDUW = getAnalysisIfAvailable<MetaDataUtilsWrapper>()) {
IGCMD::MetaDataUtils *MDUtils = MDUW->getMetaDataUtils();
MDUtils->save(M.getContext());
ModuleMetaData *const ModuleMD = MDUW->getModuleMetaData();
serialize(*ModuleMD, &M);
Changed = true;
}
if (!Stream)
return Changed;
CollectModuleMD(&M);
for (auto func_i = M.begin(); func_i != M.end(); ++func_i) {
CollectFunctionMD(&*func_i);
}
PrintAllMD(&M);
return Changed;
}
void SerializePrintMetaDataPass::PrintAllMD(llvm::Module *pM) {
PrintNamedMD(pM);
for (auto allMD_i = allMD.begin(); allMD_i != allMD.end(); ++allMD_i) {
(*allMD_i)->print(*Stream, pM);
// Add new line
*Stream << "\n";
}
}
void SerializePrintMetaDataPass::PrintNamedMD(llvm::Module *M) {
for (auto md_i = M->named_metadata_begin(); md_i != M->named_metadata_end(); ++md_i) {
auto Node = &*md_i;
if (Node) {
Node->print(*Stream);
// Add new line
*Stream << "\n";
}
}
}
void SerializePrintMetaDataPass::CollectModuleMD(llvm::Module *M) {
for (auto md_i = M->named_metadata_begin(); md_i != M->named_metadata_end(); ++md_i) {
auto Node = &*md_i;
if (Node) {
for (auto node_i = Node->op_begin(); node_i != Node->op_end(); ++node_i) {
CollectInsideMD(*node_i);
}
}
}
for (auto global_i = M->global_begin(); global_i != M->global_end(); ++global_i) {
CollectValueMD(&*global_i);
}
}
void SerializePrintMetaDataPass::CollectFunctionMD(llvm::Function *Func) {
CollectValueMD(Func);
for (auto bb_i = Func->begin(); bb_i != Func->end(); ++bb_i) {
for (auto inst_i = bb_i->begin(); inst_i != bb_i->end(); ++inst_i) {
CollectValueMD(&*inst_i);
}
}
}
void SerializePrintMetaDataPass::CollectValueMD(llvm::Value *Val) {
if (Val) {
llvm::SmallVector<std::pair<unsigned, llvm::MDNode *>, 8> MDs;
if (auto func = llvm::dyn_cast<llvm::Function>(Val)) {
func->getAllMetadata(MDs);
} else if (auto instr = llvm::dyn_cast<llvm::Instruction>(Val)) {
instr->getAllMetadata(MDs);
if (auto callInstr = llvm::dyn_cast<llvm::CallInst>(instr)) {
if (auto callFunc = callInstr->getCalledFunction()) {
if (callFunc->getName().startswith("llvm.")) {
for (unsigned i = 0; i < instr->getNumOperands(); ++i) {
if (auto valAsMD = llvm::dyn_cast<llvm::MetadataAsValue>(instr->getOperand(i))) {
CollectInsideMD(valAsMD->getMetadata());
}
}
}
}
}
} else if (auto global = llvm::dyn_cast<llvm::GlobalVariable>(Val)) {
global->getAllMetadata(MDs);
} else {
IGC_ASSERT_MESSAGE(false, "Unrecognized type");
}
for (auto md_record = MDs.begin(); md_record != MDs.end(); ++md_record) {
auto mdnode = md_record->second;
CollectInsideMD(mdnode);
}
}
}
void SerializePrintMetaDataPass::CollectInsideMD(llvm::MDNode *Node) {
if (Node) {
if (std::find(allMD.begin(), allMD.end(), Node) == allMD.end()) {
allMD.push_back(Node);
for (auto node_i = Node->op_begin(); node_i != Node->op_end(); ++node_i) {
CollectInsideMD(*node_i);
}
}
}
}
void SerializePrintMetaDataPass::CollectInsideMD(llvm::Metadata *Node) {
if (Node) {
if (auto mdnode_op = llvm::dyn_cast<llvm::MDNode>(Node)) {
CollectInsideMD(mdnode_op);
}
}
}
} // namespace IGC
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