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Run cleanAnnotations within frame analysis in parallel 

Summary: This diff parallelize the function FrameAnalysis::cleanAnnotations()

(cherry picked from FBD16096711)
This commit is contained in:
laith sakka 2019-07-02 13:42:17 -07:00 committed by Maksim Panchenko
parent 00c252f6d8
commit f10d1fe0f3
1 changed files with 33 additions and 5 deletions
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38
bolt/src/Passes/FrameAnalysis.cpp
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@ -497,14 +497,42 @@ bool FrameAnalysis::restoreFrameIndex(BinaryFunction &BF) {
void FrameAnalysis::cleanAnnotations() {
NamedRegionTimer T("cleanannotations", "clean annotations", "FA",
"FA breakdown", opts::TimeFA);
for (auto &I : BC.getBinaryFunctions()) {
for (auto &BB : I.second) {
for (auto &Inst : BB) {
BC.MIB->removeAnnotation(Inst, "ArgAccessEntry");
BC.MIB->removeAnnotation(Inst, "FrameAccessEntry");
auto cleanBlock = [&](std::map<uint64_t, BinaryFunction>::iterator BlockBegin,
std::map<uint64_t, BinaryFunction>::iterator BlockEnd) {
for (auto It = BlockBegin; It != BlockEnd; ++It) {
auto &BF = It->second;
for (auto &BB : BF) {
for (auto &Inst : BB) {
BC.MIB->removeAnnotation(Inst, "ArgAccessEntry");
BC.MIB->removeAnnotation(Inst, "FrameAccessEntry");
}
}
}
};
if (opts::NoThreads) {
cleanBlock(BC.getBinaryFunctions().begin(), BC.getBinaryFunctions().end());
return;
}
ThreadPool ThPool(opts::ThreadCount);
const unsigned TasksCount = 20 * opts::ThreadCount;
const unsigned SingleTaskSize = BC.getBinaryFunctions().size() / TasksCount;
auto BlockBegin = BC.getBinaryFunctions().begin();
unsigned CurSize = 0;
for (auto It = BC.getBinaryFunctions().begin();
It != BC.getBinaryFunctions().end(); ++It) {
CurSize++;
if (CurSize >= SingleTaskSize) {
ThPool.async(cleanBlock, BlockBegin, std::next(It));
BlockBegin = std::next(It);
CurSize = 0;
}
}
ThPool.async(cleanBlock, BlockBegin, BC.getBinaryFunctions().end());
ThPool.wait();
}
FrameAnalysis::FrameAnalysis(BinaryContext &BC, BinaryFunctionCallGraph &CG)