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/*========================== begin_copyright_notice ============================
Copyright (C) 2022 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#pragma once
#include <algorithm>
#include <string>
#include <vector>
#include "Probe/Assertion.h"
#include "llvm/IR/Module.h"
namespace IGC {
template <class ContainerType, class BinaryFunction,
class Sorter = std::less<typename ContainerType::key_type>>
static void OrderedTraversal(const ContainerType &Data, BinaryFunction Visit,
Sorter SortProcedure = {}) {
std::vector<typename ContainerType::key_type> Keys;
std::transform(Data.begin(), Data.end(), std::back_inserter(Keys),
[](const auto &KV) { return KV.first; });
std::sort(Keys.begin(), Keys.end(), SortProcedure);
for (const auto &Key : Keys) {
auto FoundIt = Data.find(Key);
IGC_ASSERT(FoundIt != Data.end());
const auto &Val = FoundIt->second;
Visit(Key, Val);
}
}
constexpr int32_t SOURCE_LANG_LITERAL_MD_IS_NOT_PRESENT = -1;
//
// Flag "Source Lang Literal" contains sourceLanguage.
//
// Example:
// !llvm.module.flags = !{..., !3, ...}
// ...
// !3 = !{i32 2, !"Source Lang Literal", 33}
// ...
//
inline int32_t getSourceLangLiteralMDValueLegacy(const llvm::Module *module) {
auto sourceLangLiteral = module->getModuleFlag("Source Lang Literal");
if (!sourceLangLiteral) {
return SOURCE_LANG_LITERAL_MD_IS_NOT_PRESENT;
}
auto constant = llvm::cast<llvm::ConstantAsMetadata>(sourceLangLiteral);
return int32_t(
llvm::cast<llvm::ConstantInt>(constant->getValue())->getZExtValue());
}
//
// Flag "Source Lang Literal" contains a list (MDTuple) of pairs (MDTuple):
// (compileUnit, sourceLanguage)
//
// Example:
// !llvm.module.flags = !{..., !3, ...}
// ...
// !3 = !{i32 2, !"Source Lang Literal", !4}
// !4 = !{!5, !1834, ...}
// !5 = !{!6, i32 33}
// !6 = !DICompileUnit(...
// ...
// !1834 = !{!1835, i32 33}
// !1835 = !DICompileUnit(...
// ...
//
inline int32_t
getSourceLangLiteralMDValue(const llvm::DICompileUnit *compileUnit,
const llvm::Module *module) {
const auto flagName = "Source Lang Literal";
if (!module->getModuleFlag(flagName)) {
return SOURCE_LANG_LITERAL_MD_IS_NOT_PRESENT;
}
auto node = llvm::dyn_cast<llvm::MDTuple>(module->getModuleFlag(flagName));
if (!node) {
return getSourceLangLiteralMDValueLegacy(module);
}
for (auto &op : node->operands()) {
auto entry = llvm::cast<llvm::MDTuple>(op);
if (llvm::cast<llvm::DICompileUnit>(entry->getOperand(0)) == compileUnit) {
auto constant =
llvm::cast<llvm::ConstantAsMetadata>(entry->getOperand(1));
return int32_t(
llvm::cast<llvm::ConstantInt>(constant->getValue())->getZExtValue());
}
}
return SOURCE_LANG_LITERAL_MD_IS_NOT_PRESENT;
}
inline uint16_t getSourceLanguage(const llvm::DICompileUnit *compileUnit,
const llvm::Module *module) {
int32_t sourceLanguage = getSourceLangLiteralMDValue(compileUnit, module);
if (sourceLanguage == SOURCE_LANG_LITERAL_MD_IS_NOT_PRESENT) {
sourceLanguage = compileUnit->getSourceLanguage();
}
return uint16_t(sourceLanguage);
}
} // namespace IGC
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