From 7284c4e48db8c0fd6d5a7f8ca3db448c2f813a54 Mon Sep 17 00:00:00 2001 From: Xinliang David Li Date: Tue, 15 Dec 2015 21:57:08 +0000 Subject: [PATCH] Initialize all bytes in vp data (msan error) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255680 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/ProfileData/InstrProf.cpp | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/lib/ProfileData/InstrProf.cpp b/lib/ProfileData/InstrProf.cpp index 723408b1c2a..00c9057c8b4 100644 --- a/lib/ProfileData/InstrProf.cpp +++ b/lib/ProfileData/InstrProf.cpp @@ -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) { -- 2.34.1