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Initialize all bytes in vp data (msan error) 

llvm-svn: 255680
This commit is contained in:
Xinliang David Li 2015-12-15 21:57:08 +00:00
parent 5f97bbaa9c
commit 38b9a32fcd
1 changed files with 5 additions and 4 deletions
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9
llvm/lib/ProfileData/InstrProf.cpp
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@ -211,8 +211,10 @@ uint64_t stringToHash(uint32_t ValueKind, uint64_t Value) {
}
ValueProfData *allocValueProfDataInstrProf(size_t TotalSizeInBytes) {
return (ValueProfData *)(new (::operator new(TotalSizeInBytes))
ValueProfData());
ValueProfData *VD =
(ValueProfData *)(new (::operator new(TotalSizeInBytes)) ValueProfData());
memset(VD, 0, TotalSizeInBytes);
return VD;
}
static ValueProfRecordClosure InstrProfRecordClosure = {
@ -223,8 +225,7 @@ static ValueProfRecordClosure InstrProfRecordClosure = {
getNumValueDataForSiteInstrProf,
stringToHash,
getValueForSiteInstrProf,
allocValueProfDataInstrProf
};
allocValueProfDataInstrProf};
// Wrapper implementation using the closure mechanism.
uint32_t ValueProfData::getSize(const InstrProfRecord &Record) {