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a305448911
Here we started crashing with r14-1659 because that removed the auto checking in cp_parser_template_type_arg which seemed like dead code. But the attached test shows that the code can still be reached because cp_parser_type_id_1 checks auto only when auto_is_implicit_function_template_parm_p is on. Then I noticed that we're still crashing in C++20, and that ICE started with r12-4772. So I changed the reemerged check to use flag_concepts_ts rather than flag_concepts on the basis that check_auto_in_tmpl_args also checks flag_concepts_ts. PR c++/110065 gcc/cp/ChangeLog: * parser.cc (cp_parser_template_type_arg): Add auto checking. gcc/testsuite/ChangeLog: * g++.dg/concepts/auto8.C: New test. * g++.dg/concepts/auto8a.C: New test. |
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