Author: d0k
Date: Wed Feb 22 04:19:45 2017
New Revision: 295820
URL: http://llvm.org/viewvc/llvm-project?rev=295820&view=rev
Log:
[ODRHash] Avoid dereferencing end() of a SmallVector.
Found by MSAN.
Modified:
cfe/trunk/lib/Serialization/ASTReader.cpp
Modified: cfe/trunk/lib/Serialization/ASTReader.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTReader.cpp?rev=295820&r1=295819&r2=295820&view=diff
==============================================================================
--- cfe/trunk/lib/Serialization/ASTReader.cpp (original)
+++ cfe/trunk/lib/Serialization/ASTReader.cpp Wed Feb 22 04:19:45 2017
@@ -8987,7 +8987,8 @@ void ASTReader::diagnoseOdrViolations()
// SecondDiffType will not be Other and FirstDecl and SecondDecl will be
// filled in if not EndOfClass.
while (FirstIt != FirstHashes.end() || SecondIt != SecondHashes.end()) {
- if (FirstIt->second == SecondIt->second) {
+ if (FirstIt != FirstHashes.end() && SecondIt != SecondHashes.end() &&
+ FirstIt->second == SecondIt->second) {
++FirstIt;
++SecondIt;
continue;
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