https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81006
Bug ID: 81006
Summary: ICE with zero-size array and #pragma omp task depend
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code, openmp
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?) testcase triggers an ICE since GCC 4.9.0
(when compiled with -fopenmp):
===================================================
int a[] = {};
void foo()
{
#pragma omp task depend(out: a[:])
{}
}
===================================================
bug.c: In function 'foo':
bug.c:5:11: internal compiler error: in size_binop_loc, at fold-const.c:1770
#pragma omp task depend(out: a[:])
^~~
0x885b57 size_binop_loc(unsigned int, tree_code, tree_node*, tree_node*)
../../gcc/gcc/fold-const.c:1769
0x6237da handle_omp_array_sections_1
../../gcc/gcc/c/c-typeck.c:12365
0x62431d handle_omp_array_sections
../../gcc/gcc/c/c-typeck.c:12508
0x6287a8 c_finish_omp_clauses(tree_node*, c_omp_region_type)
../../gcc/gcc/c/c-typeck.c:13334
0x63684e c_parser_omp_task
../../gcc/gcc/c/c-parser.c:15713
0x63684e c_parser_omp_construct
../../gcc/gcc/c/c-parser.c:17405
0x63789e c_parser_pragma
../../gcc/gcc/c/c-parser.c:10393
0x655f5d c_parser_compound_statement_nostart
../../gcc/gcc/c/c-parser.c:4892
0x65653e c_parser_compound_statement
../../gcc/gcc/c/c-parser.c:4757
0x6527e7 c_parser_declaration_or_fndef
../../gcc/gcc/c/c-parser.c:2125
0x65a223 c_parser_external_declaration
../../gcc/gcc/c/c-parser.c:1468
0x65ac89 c_parser_translation_unit
../../gcc/gcc/c/c-parser.c:1349
0x65ac89 c_parse_file()
../../gcc/gcc/c/c-parser.c:18131
0x6b8566 c_common_parse_file()
../../gcc/gcc/c-family/c-opts.c:1104
Please submit a full bug report, [etc.]
