forked from OSchip/llvm-project
9b973483ed
The added test case was triggering assertion > Assertion failed: (!SpecializedTemplate.is<SpecializedPartialSpecialization*>() && "Already set to a class template partial specialization!"), function setInstantiationOf, file clang/include/clang/AST/DeclTemplate.h, line 1825. It was happening with ClassTemplateSpecializationDecl `enable_if_not_same<int, int>`. Because this template is specialized for equal types not to have a definition, it wasn't instantiated and its specialization kind remained TSK_Undeclared. And because it was implicit instantiation, we didn't mark the decl as invalid. So when we try to find the best matching partial specialization the second time, we hit the assertion as partial specialization is already set. Fix by reusing stored partial specialization when available, instead of looking for the best match every time. rdar://problem/39524996 Reviewers: rsmith, arphaman Reviewed By: rsmith Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D46909 llvm-svn: 332509 |
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