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-rw-r--r--clang/lib/Sema/SemaOverload.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/clang/lib/Sema/SemaOverload.cpp b/clang/lib/Sema/SemaOverload.cpp
index f4ec04a1b29..a5a51d54830 100644
--- a/clang/lib/Sema/SemaOverload.cpp
+++ b/clang/lib/Sema/SemaOverload.cpp
@@ -9984,7 +9984,7 @@ static void DiagnoseBadDeduction(Sema &S, NamedDecl *Found, Decl *Templated,
DeductionFailure.getFirstArg()->getNonTypeTemplateArgumentType();
QualType T2 =
DeductionFailure.getSecondArg()->getNonTypeTemplateArgumentType();
- if (!S.Context.hasSameType(T1, T2)) {
+ if (!T1.isNull() && !T2.isNull() && !S.Context.hasSameType(T1, T2)) {
S.Diag(Templated->getLocation(),
diag::note_ovl_candidate_inconsistent_deduction_types)
<< ParamD->getDeclName() << *DeductionFailure.getFirstArg() << T1
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