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-rw-r--r--clang/lib/CodeGen/CoverageMappingGen.cpp5
1 files changed, 4 insertions, 1 deletions
diff --git a/clang/lib/CodeGen/CoverageMappingGen.cpp b/clang/lib/CodeGen/CoverageMappingGen.cpp
index 38848b032c9..fca17264e8f 100644
--- a/clang/lib/CodeGen/CoverageMappingGen.cpp
+++ b/clang/lib/CodeGen/CoverageMappingGen.cpp
@@ -447,7 +447,10 @@ struct CounterCoverageMappingBuilder
/// This should be used after visiting any statements in non-source order.
void adjustForOutOfOrderTraversal(SourceLocation EndLoc) {
MostRecentLocation = EndLoc;
- if (MostRecentLocation == getEndOfFileOrMacro(MostRecentLocation))
+ // Avoid adding duplicate regions if we have a completed region on the top
+ // of the stack and are adjusting to the end of a virtual file.
+ if (getRegion().hasEndLoc() &&
+ MostRecentLocation == getEndOfFileOrMacro(MostRecentLocation))
MostRecentLocation = getIncludeOrExpansionLoc(MostRecentLocation);
}
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