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//===-- ModuleSummaryIndex.cpp - Module Summary Index ---------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the module index and summary classes for the
// IR library.
//
//===----------------------------------------------------------------------===//
#include "llvm/IR/ModuleSummaryIndex.h"
#include "llvm/ADT/StringMap.h"
using namespace llvm;
// Collect for the given module the list of function it defines
// (GUID -> Summary).
void ModuleSummaryIndex::collectDefinedFunctionsForModule(
StringRef ModulePath, GVSummaryMapTy &GVSummaryMap) const {
for (auto &GlobalList : *this) {
auto GUID = GlobalList.first;
for (auto &GlobSummary : GlobalList.second.SummaryList) {
auto *Summary = dyn_cast_or_null<FunctionSummary>(GlobSummary.get());
if (!Summary)
// Ignore global variable, focus on functions
continue;
// Ignore summaries from other modules.
if (Summary->modulePath() != ModulePath)
continue;
GVSummaryMap[GUID] = Summary;
}
}
}
// Collect for each module the list of function it defines (GUID -> Summary).
void ModuleSummaryIndex::collectDefinedGVSummariesPerModule(
StringMap<GVSummaryMapTy> &ModuleToDefinedGVSummaries) const {
for (auto &GlobalList : *this) {
auto GUID = GlobalList.first;
for (auto &Summary : GlobalList.second.SummaryList) {
ModuleToDefinedGVSummaries[Summary->modulePath()][GUID] = Summary.get();
}
}
}
GlobalValueSummary *
ModuleSummaryIndex::getGlobalValueSummary(uint64_t ValueGUID,
bool PerModuleIndex) const {
auto VI = getValueInfo(ValueGUID);
assert(VI && "GlobalValue not found in index");
assert((!PerModuleIndex || VI.getSummaryList().size() == 1) &&
"Expected a single entry per global value in per-module index");
auto &Summary = VI.getSummaryList()[0];
return Summary.get();
}
bool ModuleSummaryIndex::isGUIDLive(GlobalValue::GUID GUID) const {
auto VI = getValueInfo(GUID);
if (!VI)
return true;
const auto &SummaryList = VI.getSummaryList();
if (SummaryList.empty())
return true;
for (auto &I : SummaryList)
if (isGlobalValueLive(I.get()))
return true;
return false;
}
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