[Bug debug/105559] New: -g and -O3 cause timeout

[dcb314 at hotmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105559

            Bug ID: 105559
           Summary: -g and -O3 cause timeout
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com
  Target Milestone: ---

Created attachment 52952
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52952&action=edit
C source code

For the attached C code, flags -g and -O3 cause a timeout:

$ time /home/dcb/gcc/results/bin/gcc  -w -c -O3  bug809.i

real    0m0.656s
user    0m0.587s
sys     0m0.032s
$ (ulimit -t 300; time /home/dcb/gcc/results/bin/gcc  -w -c -g -O3  bug809.i)
gcc: fatal error: Killed signal terminated program cc1
compilation terminated.

real    5m14.868s
user    4m57.685s
sys     0m2.265s
$ (ulimit -t 300; time /home/dcb/gcc/results/bin/gcc  -w -c -g -O2  bug809.i)

real    0m0.732s
user    0m0.683s
sys     0m0.024s
$ /home/dcb/gcc/results/bin/gcc -v 2>&1 | fgrep exp
gcc version 13.0.0 20220510 (experimental) (60ab3d0f2d9f9504) 
$