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* [Bug c++/101881] New: [9/10/11/12 Regression] ICE with vector type in template alias
@ 2021-08-12 14:31 reichelt at gcc dot gnu.org
  2021-08-12 14:35 ` [Bug c++/101881] [9/10/11/12 Regression] ICE with vector type in template alias since r7-2549-gf3365c1201908df5 marxin at gcc dot gnu.org
                   ` (5 more replies)
  0 siblings, 6 replies; 7+ messages in thread
From: reichelt at gcc dot gnu.org @ 2021-08-12 14:31 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101881

            Bug ID: 101881
           Summary: [9/10/11/12 Regression] ICE with vector type in
                    template alias
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: reichelt at gcc dot gnu.org
  Target Milestone: ---

The following valid code snippet triggers an ICE since GCC 7.1.0:

=================================================================
template<int N> using A = int __attribute__((vector_size(N)))*; 

void foo(A<4>) {}
=================================================================

bug.cc:3:6: internal compiler error: in add_substitution, at cp/mangle.c:462
 void foo(A<4>) {}
      ^~~
0x8014a5 add_substitution
        ../../gcc-7.5.0/gcc/cp/mangle.c:461
0x7fa97b write_type
        ../../gcc-7.5.0/gcc/cp/mangle.c:2413
0x7fd114 write_method_parms
        ../../gcc-7.5.0/gcc/cp/mangle.c:2828
0x7fd3f6 write_bare_function_type
        ../../gcc-7.5.0/gcc/cp/mangle.c:2764
0x80505c mangle_decl_string
        ../../gcc-7.5.0/gcc/cp/mangle.c:3821
0x8053c3 get_mangled_id
        ../../gcc-7.5.0/gcc/cp/mangle.c:3843
0x8053c3 mangle_decl(tree_node*)
        ../../gcc-7.5.0/gcc/cp/mangle.c:3913
0x102833e decl_assembler_name(tree_node*)
        ../../gcc-7.5.0/gcc/tree.c:671
0x1077ac7 notice_global_symbol(tree_node*)
        ../../gcc-7.5.0/gcc/varasm.c:1656
0x96fdd9 cgraph_node::finalize_function(tree_node*, bool)
        ../../gcc-7.5.0/gcc/cgraphunit.c:442
0x7b5e9f expand_or_defer_fn(tree_node*)
        ../../gcc-7.5.0/gcc/cp/semantics.c:4321
0x74a3a9 cp_parser_function_definition_after_declarator
        ../../gcc-7.5.0/gcc/cp/parser.c:26468
0x74b07e cp_parser_function_definition_from_specifiers_and_declarator
        ../../gcc-7.5.0/gcc/cp/parser.c:26371
0x74b07e cp_parser_init_declarator
        ../../gcc-7.5.0/gcc/cp/parser.c:19353
0x745e3c cp_parser_simple_declaration
        ../../gcc-7.5.0/gcc/cp/parser.c:12886
0x746d77 cp_parser_block_declaration
        ../../gcc-7.5.0/gcc/cp/parser.c:12711
0x7511e4 cp_parser_declaration
        ../../gcc-7.5.0/gcc/cp/parser.c:12609
0x75161b cp_parser_declaration_seq_opt
        ../../gcc-7.5.0/gcc/cp/parser.c:12485
0x751902 cp_parser_translation_unit
        ../../gcc-7.5.0/gcc/cp/parser.c:4368
0x751902 c_parse_file()
        ../../gcc-7.5.0/gcc/cp/parser.c:38643
Please submit a full bug report, [etc.]

This is related to PR 83997, but without -flto. And we have a regression.

^ permalink raw reply	[flat|nested] 7+ messages in thread
end of thread, other threads:[~2023-07-07 10:40 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-08-12 14:31 [Bug c++/101881] New: [9/10/11/12 Regression] ICE with vector type in template alias reichelt at gcc dot gnu.org
2021-08-12 14:35 ` [Bug c++/101881] [9/10/11/12 Regression] ICE with vector type in template alias since r7-2549-gf3365c1201908df5 marxin at gcc dot gnu.org
2021-08-16  8:55 ` rguenth at gcc dot gnu.org
2022-01-17 13:55 ` rguenth at gcc dot gnu.org
2022-05-27  9:46 ` [Bug c++/101881] [10/11/12/13 " rguenth at gcc dot gnu.org
2022-06-28 10:45 ` jakub at gcc dot gnu.org
2023-07-07 10:40 ` [Bug c++/101881] [11/12/13/14 " rguenth at gcc dot gnu.org

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