[Bug tree-optimization/106498] New: [13 Regression] ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.cc:645

["asolokha at gmx dot com" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106498

            Bug ID: 106498
           Summary: [13 Regression] ICE in check_loop_closed_ssa_def, at
                    tree-ssa-loop-manip.cc:645
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: asolokha at gmx dot com
  Target Milestone: ---
            Target: powerpc-e300c3-linux-gnu

gcc 13.0.0 20220731 snapshot (g:525a1a73a5a563c829a5f76858fe122c9b39f254) ICEs
when compiling gcc/testsuite/gcc.c-torture/execute/pr71335.c for a 32-bit BE
powerpc target w/ -O1 -floop-parallelize-all -ftree-parallelize-loops=2:

% powerpc-e300c3-linux-gnu-gcc-13.0.0 -O1 -floop-parallelize-all
-ftree-parallelize-loops=2 -w -c gcc/testsuite/gcc.c-torture/execute/pr71335.c
during GIMPLE pass: ompexpssa
gcc/testsuite/gcc.c-torture/execute/pr71335.c: In function 'main':
gcc/testsuite/gcc.c-torture/execute/pr71335.c:3:1: internal compiler error: in
check_loop_closed_ssa_def, at tree-ssa-loop-manip.cc:645
    3 | main ()
      | ^~~~
0x6e62f7 check_loop_closed_ssa_def
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-13.0.0_p20220731/work/gcc-13-20220731/gcc/tree-ssa-loop-manip.cc:645
0xfd3834 check_loop_closed_ssa_bb
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-13.0.0_p20220731/work/gcc-13-20220731/gcc/tree-ssa-loop-manip.cc:659
0xfd4e26 verify_loop_closed_ssa(bool, loop*)
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-13.0.0_p20220731/work/gcc-13-20220731/gcc/tree-ssa-loop-manip.cc:695
0xfd4e26 verify_loop_closed_ssa(bool, loop*)
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-13.0.0_p20220731/work/gcc-13-20220731/gcc/tree-ssa-loop-manip.cc:679
0xd691a4 execute_function_todo
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-13.0.0_p20220731/work/gcc-13-20220731/gcc/passes.cc:2109
0xd695eb execute_todo
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-13.0.0_p20220731/work/gcc-13-20220731/gcc/passes.cc:2145

This PR can in fact be a duplicate of PR106099, or PR106249, or both.