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* [Bug c/100547] New: ICE with "-g -O1": Segmentation fault signal terminated program cc1, during RTL pass: expand
@ 2021-05-11 21:19 cnsun at uwaterloo dot ca
  2021-05-12  7:07 ` [Bug c/100547] ICE with "-g -O1": stack overflow in expand with a very large vector_size attribute rguenth at gcc dot gnu.org
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: cnsun at uwaterloo dot ca @ 2021-05-11 21:19 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100547

            Bug ID: 100547
           Summary: ICE with "-g -O1": Segmentation fault signal
                    terminated program cc1, during RTL pass: expand
           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
typedef __attribute__((vector_size(
    ((((((((((((((((((((((((((((((8 * sizeof(short)) * sizeof(short)) *
                                sizeof(short)) *
                               sizeof(short)) *
                              sizeof(short)) *
                             sizeof(short)) *
                            sizeof(short)) *
                           sizeof(short)) *
                          sizeof(short)) *
                         sizeof(short)) *
                        sizeof(short)) *
                       sizeof(short)) *
                      sizeof(short)) *
                     sizeof(short)) *
                    sizeof(short)) *
                   sizeof(short)) *
                  sizeof(short)) *
                 sizeof(short)) *
                sizeof(short)) *
               sizeof(short)) *
              sizeof(short)) *
             sizeof(short)) *
            sizeof(short)) *
           sizeof(short)) *
          sizeof(short)) *
         sizeof(short)) *
        sizeof(short)) *
       sizeof(short)) *
      sizeof(short)) *
     sizeof(short)) *
    sizeof(short)))) V;
k() { V w = {}; }

$ gcc-trunk -O1 -g mutant.c
mutant.c:31:22: warning: type defaults to ‘int’ in declaration of ‘V’
[-Wimplicit-int]
   31 |     sizeof(short)))) V;
      |                      ^
mutant.c:32:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
   32 | k() { V w = {}; }
      | ^
during RTL pass: expand
gcc-trunk: internal compiler error: Segmentation fault signal terminated
program cc1
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://gcc.gnu.org/bugs/> for instructions.

^ permalink raw reply	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2021-05-18  7:04 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-05-11 21:19 [Bug c/100547] New: ICE with "-g -O1": Segmentation fault signal terminated program cc1, during RTL pass: expand cnsun at uwaterloo dot ca
2021-05-12  7:07 ` [Bug c/100547] ICE with "-g -O1": stack overflow in expand with a very large vector_size attribute rguenth at gcc dot gnu.org
2021-05-12  7:22 ` rguenth at gcc dot gnu.org
2021-05-12  8:48 ` cvs-commit at gcc dot gnu.org
2021-05-18  7:03 ` cvs-commit at gcc dot gnu.org
2021-05-18  7:04 ` rguenth at gcc dot gnu.org

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