[Bug c++/77638] [6 Regression] ICE on x86_64-linux-gnu (internal compiler error: tree check: expected tree that contains ‘decl common’ structure, have ‘error_mark’ in cp_parser_template_declaration_after_parameters, at cp/parser.c:25722)

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77638

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Wed Dec  7 22:31:33 2016
New Revision: 243386

URL: https://gcc.gnu.org/viewcvs?rev=243386&root=gcc&view=rev
Log:
        Backported from mainline
        2016-09-20  Jakub Jelinek  <jakub@redhat.com>

        PR c++/77638
        * parser.c (cp_parser_template_declaration_after_parameter): For 2
        argument operator"" template set ok to false for
        parm == error_mark_node.

        * g++.dg/cpp0x/udlit-tmpl-arg-neg2.C: New test.

Added:
    branches/gcc-6-branch/gcc/testsuite/g++.dg/cpp0x/udlit-tmpl-arg-neg2.C
Modified:
    branches/gcc-6-branch/gcc/cp/ChangeLog
    branches/gcc-6-branch/gcc/cp/parser.c
    branches/gcc-6-branch/gcc/testsuite/ChangeLog