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-rw-r--r--lib/Sema/TreeTransform.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Sema/TreeTransform.h b/lib/Sema/TreeTransform.h
index 0624aaa7ee..e2bfb05088 100644
--- a/lib/Sema/TreeTransform.h
+++ b/lib/Sema/TreeTransform.h
@@ -3568,6 +3568,7 @@ TreeTransform<Derived>::TransformFunctionProtoType(TypeLocBuilder &TLB,
QualType Result = TL.getType();
if (getDerived().AlwaysRebuild() ||
ResultType != T->getResultType() ||
+ T->getNumArgs() != ParamTypes.size() ||
!std::equal(T->arg_type_begin(), T->arg_type_end(), ParamTypes.begin())) {
Result = getDerived().RebuildFunctionProtoType(ResultType,
ParamTypes.data(),