[Bug c++/97877] New: [11 Regression] ICE in cp_genericize_r, at cp/cp-gimplify.c:968

gscfq@t-online.de gcc-bugzilla@gcc.gnu.org
Tue Nov 17 17:36:04 GMT 2020


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97877

            Bug ID: 97877
           Summary: [11 Regression] ICE in cp_genericize_r, at
                    cp/cp-gimplify.c:968
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gscfq@t-online.de
  Target Milestone: ---

Changed between 20201004 and 20201018 :


$ cat z1.cc
void f ()
{
  extern int a;
  extern int a;
  a = 2;
}


$ g++-11-20201004 -c z1.cc
$
$ g++-11-20201115 -c z1.cc
z1.cc: In function 'void f()':
z1.cc:6:1: internal compiler error: Segmentation fault
    6 | }
      | ^
0xc727ef crash_signal
        ../../gcc/toplev.c:330
0x69951f cp_genericize_r
        ../../gcc/cp/cp-gimplify.c:968
0xeef755 walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*,
tree_node* (*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*))
        ../../gcc/tree.c:12058
0xeefd2e walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*,
tree_node* (*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*))
        ../../gcc/tree.c:12394
0x69a37d cp_genericize_r
        ../../gcc/cp/cp-gimplify.c:1166
0xeef755 walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*,
tree_node* (*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*))
        ../../gcc/tree.c:12058
0x698e58 cp_genericize_tree
        ../../gcc/cp/cp-gimplify.c:1579
0x698ff3 cp_genericize(tree_node*)
        ../../gcc/cp/cp-gimplify.c:1725
0x6c2127 finish_function(bool)
        ../../gcc/cp/decl.c:17229
0x74ccee cp_parser_function_definition_after_declarator
        ../../gcc/cp/parser.c:29495
0x74dbf3 cp_parser_function_definition_from_specifiers_and_declarator
        ../../gcc/cp/parser.c:29408
0x74dbf3 cp_parser_init_declarator
        ../../gcc/cp/parser.c:21124
0x72f42a cp_parser_simple_declaration
        ../../gcc/cp/parser.c:13943
0x75307a cp_parser_declaration
        ../../gcc/cp/parser.c:13640
0x75390a cp_parser_translation_unit
        ../../gcc/cp/parser.c:4806
0x75390a c_parse_file()
        ../../gcc/cp/parser.c:44595
0x81d252 c_common_parse_file()
        ../../gcc/c-family/c-opts.c:1196


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