[Bug c/100526] New: ICE: segmentation fault in gimple-parser.c2049

[Bug c/100526] New: ICE: segmentation fault in gimple-parser.c2049

[cnsun at uwaterloo dot ca]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100526

            Bug ID: 100526
           Summary: ICE: segmentation fault in gimple-parser.c2049
           Product: gcc
           Version: tree-ssa
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: cnsun at uwaterloo dot ca
  Target Milestone: ---

$ gcc-trunk -v
Using built-in specs.
COLLECT_GCC=gcc-trunk
COLLECT_LTO_WRAPPER=/scratch/software/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/12.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /tmp/tmp.FUbEknNORK-gcc-builder/gcc/configure
--enable-languages=c,c++,lto --enable-checking-yes --enable-multiarch
--prefix=/scratch/software/gcc-trunk --disable-bootstrap
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 12.0.0 20210511 (experimental) [master revision
:7db32cac8:aa891c56f25baac94db004e309d1b6e40b770a95] (GCC)

$ cat mutant.c
__GIMPLE
foo() { enum tst; }

$ gcc-trunk -O0 mutant.c
mutant.c:1:1: error: ‘__GIMPLE’ only valid with ‘-fgimple’
    1 | __GIMPLE
      | ^~~~~~~~
mutant.c:2:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
    2 | foo() { enum tst; }
      | ^~~
mutant.c: In function ‘foo’:
mutant.c:2:17: error: expected identifier or ‘(’ before ‘;’ token
    2 | foo() { enum tst; }
      |                 ^
mutant.c:2:17: internal compiler error: Segmentation fault
0xef7273 crash_signal
        /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/toplev.c:327
0x9528a8 c_parser_gimple_declaration
        /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/c/gimple-parser.c:2049
0x9528a8 c_parser_gimple_compound_statement
        /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/c/gimple-parser.c:391
0x954fa7 c_parser_parse_gimple_body(c_parser*, char*, c_declspec_il,
profile_count)
        /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/c/gimple-parser.c:253
0x944187 c_parser_declaration_or_fndef
        /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/c/c-parser.c:2533
0x94b9d3 c_parser_external_declaration
        /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/c/c-parser.c:1777
0x94c439 c_parser_translation_unit
        /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/c/c-parser.c:1650
0x94c439 c_parse_file()
        /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/c/c-parser.c:21984
0x9ac765 c_common_parse_file()
        /tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/c-family/c-opts.c:1218
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.

[Bug c/100526] ICE: segmentation fault in gimple-parser.c2049

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100526

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2021-12-12
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.