[Bug c/104532] New: ICE in lvalue_p, at c/c-typeck.cc:4987

["gscfq@t-online.de" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104532

            Bug ID: 104532
           Summary: ICE in lvalue_p, at c/c-typeck.cc:4987
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gscfq@t-online.de
  Target Milestone: ---

Started between 20211205 and 20211212 :


$ cat z1.c
void f (int x)
{
  #pragma omp target enter data map (to: x->vectors)
}


$ cat z2.c
void f (int x)
{
  #pragma omp target enter data map (to: x->vectors[])
}


$ gcc-12-20220213 -c z1.c -fopenmp
z1.c: In function 'f':
z1.c:3:11: internal compiler error: Segmentation fault
    3 |   #pragma omp target enter data map (to: x->vectors)
      |           ^~~
0xc1c3cf crash_signal
        ../../gcc/toplev.cc:322
0x6c1a46 lvalue_p(tree_node const*)
        ../../gcc/c/c-typeck.cc:4987
0x6ca5a8 build_component_ref(unsigned int, tree_node*, tree_node*, unsigned
int)
        ../../gcc/c/c-typeck.cc:2470
0x6f742e c_parser_omp_variable_list
        ../../gcc/c/c-parser.cc:13161
0x6f81dc c_parser_omp_clause_map
        ../../gcc/c/c-parser.cc:16260
0x700262 c_parser_omp_all_clauses
        ../../gcc/c/c-parser.cc:17057
0x70d6ae c_parser_omp_target_enter_data
        ../../gcc/c/c-parser.cc:20904
0x70d6ae c_parser_omp_target
        ../../gcc/c/c-parser.cc:21195
0x6e7a44 c_parser_pragma
        ../../gcc/c/c-parser.cc:12499
0x7054a6 c_parser_compound_statement_nostart
        ../../gcc/c/c-parser.cc:5767
0x705873 c_parser_compound_statement
        ../../gcc/c/c-parser.cc:5609
0x707128 c_parser_declaration_or_fndef
        ../../gcc/c/c-parser.cc:2544
0x70e85f c_parser_external_declaration
        ../../gcc/c/c-parser.cc:1779
0x70f18b c_parser_translation_unit
        ../../gcc/c/c-parser.cc:1652
0x70f18b c_parse_file()
        ../../gcc/c/c-parser.cc:23348
0x760792 c_common_parse_file()
        ../../gcc/c-family/c-opts.cc:1238