[Bug c++/93465] New: [10 Regression] ICE in oacc_verify_routine_clauses, at omp-general.c:1802

[gscfq@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93465

            Bug ID: 93465
           Summary: [10 Regression] ICE in oacc_verify_routine_clauses, at
                    omp-general.c:1802
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gscfq@t-online.de
  Target Milestone: ---

Changed between 20190512 and 20190519, rejects C variant :


$ cat z0.c
#pragma omp declare target
#include <openacc.h>

$ cat z1.cc
#pragma omp declare target
#include <openacc.h>


$ gcc-10-20200126 -c z0.c -fopenmp -fopenacc
z0.c:3: error: '#pragma omp declare target' without corresponding '#pragma omp
end declare target'


$ g++-10-20190512 -c z1.cc -fopenmp -fopenacc
$
$ g++-10-20200126 -c z1.cc -fopenmp -fopenacc
In file included from z1.cc:2:
.../lib64/gcc/x86_64-pc-linux-gnu/10.0.1/include/openacc.h: In function 'int
acc_on_device(acc_device_t)':
.../lib64/gcc/x86_64-pc-linux-gnu/10.0.1/include/openacc.h:162:1: internal
compiler error: Segmentation fault
  162 | {
      | ^
0xc3085f crash_signal
        ../../gcc/toplev.c:328
0xb17d41 oacc_verify_routine_clauses(tree_node*, tree_node**, unsigned int,
char const*)
        ../../gcc/omp-general.c:1802
0x6e2732 cp_finalize_oacc_routine
        ../../gcc/cp/parser.c:42750
0x718bdc cp_parser_function_definition_from_specifiers_and_declarator
        ../../gcc/cp/parser.c:28734
0x718bdc cp_parser_init_declarator
        ../../gcc/cp/parser.c:20590
0x6fc6ee cp_parser_simple_declaration
        ../../gcc/cp/parser.c:13669
0x71f6d9 cp_parser_declaration
        ../../gcc/cp/parser.c:13368
0x6f786a cp_parser_oacc_routine
        ../../gcc/cp/parser.c:42669
0x6f786a cp_parser_pragma
        ../../gcc/cp/parser.c:43459
0x71fe51 cp_parser_translation_unit
        ../../gcc/cp/parser.c:4731
0x71fe51 c_parse_file()
        ../../gcc/cp/parser.c:43675
0x7e2560 c_common_parse_file()
        ../../gcc/c-family/c-opts.c:1186