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-rw-r--r--clang/lib/Sema/SemaTemplateInstantiate.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/clang/lib/Sema/SemaTemplateInstantiate.cpp b/clang/lib/Sema/SemaTemplateInstantiate.cpp
index 67b53b4c0a7..57eb64d127a 100644
--- a/clang/lib/Sema/SemaTemplateInstantiate.cpp
+++ b/clang/lib/Sema/SemaTemplateInstantiate.cpp
@@ -1577,6 +1577,9 @@ static bool NeedsInstantiationAsFunctionType(TypeSourceInfo *T) {
for (unsigned I = 0, E = FP.getNumArgs(); I != E; ++I) {
ParmVarDecl *P = FP.getArg(I);
+ // This must be synthesized from a typedef.
+ if (!P) continue;
+
// The parameter's type as written might be dependent even if the
// decayed type was not dependent.
if (TypeSourceInfo *TSInfo = P->getTypeSourceInfo())
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