[Bug tree-optimization/106896] New: [13 Regression] ICE in to_sreal_scale, at profile-count.cc:339

[asolokha at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106896

            Bug ID: 106896
           Summary: [13 Regression] ICE in to_sreal_scale, at
                    profile-count.cc:339
           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: ---

gcc 13.0.0 20220904 snapshot (g:20d30e737ad79dc36817e59f1676aa8bc0c6b325) ICEs
when compiling the following testcase w/ -O2:

int m, n;

__attribute__ ((cold)) void
bar (void);

void
foo (int *p)
{
  m = 1;
  while (m > 0)
    {
      for (n = 0; n < 2; ++n)
        {
        }

      bar ();

      while (m > 0)
        {
        }
    }

  *p = 0;
  *p = m;
}

% gcc-13.0.0 -O2 -c mqgbo1aa.c
during GIMPLE pass: slp
mqgbo1aa.c: In function 'foo':
mqgbo1aa.c:7:1: internal compiler error: in to_sreal_scale, at
profile-count.cc:339
    7 | foo (int *p)
      | ^~~
0x72c105 profile_count::to_sreal_scale(profile_count, bool*) const
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220904/work/gcc-13-20220904/gcc/profile-count.cc:339
0x11acae2 vect_slp_node_weight
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220904/work/gcc-13-20220904/gcc/tree-vect-slp.cc:329
0x11acae2 vect_optimize_slp_pass::start_choosing_layouts()
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220904/work/gcc-13-20220904/gcc/tree-vect-slp.cc:4684
0x11ad92b vect_optimize_slp_pass::run()
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220904/work/gcc-13-20220904/gcc/tree-vect-slp.cc:5545
0x11ada40 vect_optimize_slp(vec_info*)
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220904/work/gcc-13-20220904/gcc/tree-vect-slp.cc:5568
0x11ada40 vect_optimize_slp(vec_info*)
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220904/work/gcc-13-20220904/gcc/tree-vect-slp.cc:5564
0x11b5a9c vect_slp_analyze_bb_1
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220904/work/gcc-13-20220904/gcc/tree-vect-slp.cc:7289
0x11b5a9c vect_slp_region
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220904/work/gcc-13-20220904/gcc/tree-vect-slp.cc:7377
0x11b74db vect_slp_bbs
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220904/work/gcc-13-20220904/gcc/tree-vect-slp.cc:7568
0x11b7783 vect_slp_function(function*)
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220904/work/gcc-13-20220904/gcc/tree-vect-slp.cc:7656
0x11c06a1 execute
       
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220904/work/gcc-13-20220904/gcc/tree-vectorizer.cc:1532