[preprocessing record] Add some sanity checks for the preprocessed entity index
to make sure we don't crash on release if the index is not valid.
rdar://13089714
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175010 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Lex/PreprocessingRecord.cpp b/lib/Lex/PreprocessingRecord.cpp
index d7ebeaf..c2a340c 100644
--- a/lib/Lex/PreprocessingRecord.cpp
+++ b/lib/Lex/PreprocessingRecord.cpp
@@ -92,8 +92,10 @@
int Pos = PPEI.Position;
if (Pos < 0) {
- assert(unsigned(-Pos-1) < LoadedPreprocessedEntities.size() &&
- "Out-of bounds loaded preprocessed entity");
+ if (unsigned(-Pos-1) >= LoadedPreprocessedEntities.size()) {
+ assert(0 && "Out-of bounds loaded preprocessed entity");
+ return false;
+ }
assert(ExternalSource && "No external source to load from");
unsigned LoadedIndex = LoadedPreprocessedEntities.size()+Pos;
if (PreprocessedEntity *PPE = LoadedPreprocessedEntities[LoadedIndex])
@@ -113,8 +115,10 @@
FID, SourceMgr);
}
- assert(unsigned(Pos) < PreprocessedEntities.size() &&
- "Out-of bounds local preprocessed entity");
+ if (unsigned(Pos) >= PreprocessedEntities.size()) {
+ assert(0 && "Out-of bounds local preprocessed entity");
+ return false;
+ }
return isPreprocessedEntityIfInFileID(PreprocessedEntities[Pos],
FID, SourceMgr);
}
