diff options
| -rwxr-xr-x | clang/lib/Sema/SemaTemplate.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/clang/lib/Sema/SemaTemplate.cpp b/clang/lib/Sema/SemaTemplate.cpp index f961244da07..ad4ea2d2593 100755 --- a/clang/lib/Sema/SemaTemplate.cpp +++ b/clang/lib/Sema/SemaTemplate.cpp @@ -2047,12 +2047,14 @@ private: if (const auto *TC = TTP->getTypeConstraint()) { TemplateArgumentListInfo TransformedArgs; const auto *ArgsAsWritten = TC->getTemplateArgsAsWritten(); - if (SemaRef.Subst(ArgsAsWritten->getTemplateArgs(), + if (!ArgsAsWritten || + SemaRef.Subst(ArgsAsWritten->getTemplateArgs(), ArgsAsWritten->NumTemplateArgs, TransformedArgs, Args)) SemaRef.AttachTypeConstraint( TC->getNestedNameSpecifierLoc(), TC->getConceptNameInfo(), - TC->getNamedConcept(), &TransformedArgs, NewTTP, + TC->getNamedConcept(), ArgsAsWritten ? &TransformedArgs : nullptr, + NewTTP, NewTTP->isParameterPack() ? cast<CXXFoldExpr>(TC->getImmediatelyDeclaredConstraint()) ->getEllipsisLoc() |
