[Bug c++/69113] New: [6 Regression] ICE: in vague_linkage_p, at cp/decl2.c:1875 with -fno-weak

[zsojka at seznam dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69113

            Bug ID: 69113
           Summary: [6 Regression] ICE: in vague_linkage_p, at
                    cp/decl2.c:1875 with -fno-weak
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz
  Target Milestone: ---
              Host: x86_64-pc-linux-gnu

Created attachment 37205
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37205&action=edit
reduced testcase

Compiler output:
$ gcc testcase.C -fno-weak
testcase.C: In static member function 'static void foo::bar()::baz::m()':
testcase.C:9:13: internal compiler error: in vague_linkage_p, at
cp/decl2.c:1875
  static int n;
             ^

0x6ca3f6 vague_linkage_p(tree_node*)
        /repo/gcc-trunk/gcc/cp/decl2.c:1875
0x5fe8cc maybe_commonize_var(tree_node*)
        /repo/gcc-trunk/gcc/cp/decl.c:5332
0x61ebaf cp_finish_decl(tree_node*, tree_node*, bool, tree_node*, int)
        /repo/gcc-trunk/gcc/cp/decl.c:6841
0x722d88 cp_parser_init_declarator
        /repo/gcc-trunk/gcc/cp/parser.c:18601
0x72342e cp_parser_simple_declaration
        /repo/gcc-trunk/gcc/cp/parser.c:12324
0x7238d4 cp_parser_block_declaration
        /repo/gcc-trunk/gcc/cp/parser.c:12200
0x724948 cp_parser_declaration_statement
        /repo/gcc-trunk/gcc/cp/parser.c:11812
0x6fc70a cp_parser_statement
        /repo/gcc-trunk/gcc/cp/parser.c:10494
0x6fcfc1 cp_parser_statement_seq_opt
        /repo/gcc-trunk/gcc/cp/parser.c:10772
0x6fd0c3 cp_parser_compound_statement
        /repo/gcc-trunk/gcc/cp/parser.c:10726
0x7214a0 cp_parser_function_body
        /repo/gcc-trunk/gcc/cp/parser.c:20594
0x7214a0 cp_parser_ctor_initializer_opt_and_function_body
        /repo/gcc-trunk/gcc/cp/parser.c:20630
0x7221bf cp_parser_function_definition_after_declarator
        /repo/gcc-trunk/gcc/cp/parser.c:25257
0x728b24 cp_parser_late_parsing_for_member
        /repo/gcc-trunk/gcc/cp/parser.c:26100
0x6fa5a9 cp_parser_class_specifier_1
        /repo/gcc-trunk/gcc/cp/parser.c:21465
0x6fa5a9 cp_parser_class_specifier
        /repo/gcc-trunk/gcc/cp/parser.c:21491
0x6fa5a9 cp_parser_type_specifier
        /repo/gcc-trunk/gcc/cp/parser.c:15789
0x71743b cp_parser_decl_specifier_seq
        /repo/gcc-trunk/gcc/cp/parser.c:12710
0x723251 cp_parser_simple_declaration
        /repo/gcc-trunk/gcc/cp/parser.c:12253
0x7238d4 cp_parser_block_declaration
        /repo/gcc-trunk/gcc/cp/parser.c:12200
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.


Tested revisions:
trunk r231954 - ICE
5-branch r231950 - OK
4_9-branch r231949 - OK
4_8-branch r224828 - OK