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-rw-r--r--clang/lib/Sema/SemaOverload.cpp6
1 files changed, 4 insertions, 2 deletions
diff --git a/clang/lib/Sema/SemaOverload.cpp b/clang/lib/Sema/SemaOverload.cpp
index 0880d1073d6..75ca531cbcd 100644
--- a/clang/lib/Sema/SemaOverload.cpp
+++ b/clang/lib/Sema/SemaOverload.cpp
@@ -3496,8 +3496,10 @@ Sema::isBetterOverloadCandidate(const OverloadCandidate& Cand1,
// template for F1 is more specialized than the template for F2
// according to the partial ordering rules described in 14.5.5.2, or,
// if not that,
-
- // FIXME: Implement partial ordering of function templates.
+ if (Cand1.Function && Cand1.Function->getPrimaryTemplate() &&
+ Cand2.Function && Cand2.Function->getPrimaryTemplate())
+ // FIXME: Implement partial ordering of function templates.
+ Diag(SourceLocation(), diag::unsup_function_template_partial_ordering);
// -- the context is an initialization by user-defined conversion
// (see 8.5, 13.3.1.5) and the standard conversion sequence
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