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From: "asolokha at gmx dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/106896] New: [13 Regression] ICE in
 to_sreal_scale, at profile-count.cc:339
Date: Fri, 09 Sep 2022 14:12:54 +0000
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 13.0
X-Bugzilla-Keywords: ice-on-valid-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: asolokha at gmx dot com
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106896

            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) I=
CEs
when compiling the following testcase w/ -O2:

int m, n;

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

void
foo (int *p)
{
  m =3D 1;
  while (m > 0)
    {
      for (n =3D 0; n < 2; ++n)
        {
        }

      bar ();

      while (m > 0)
        {
        }
    }

  *p =3D 0;
  *p =3D 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
=20=20=20=20=20=20=20
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220904/work/gcc-13-20220904/gcc/pr=
ofile-count.cc:339
0x11acae2 vect_slp_node_weight
=20=20=20=20=20=20=20
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220904/work/gcc-13-20220904/gcc/tr=
ee-vect-slp.cc:329
0x11acae2 vect_optimize_slp_pass::start_choosing_layouts()
=20=20=20=20=20=20=20
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220904/work/gcc-13-20220904/gcc/tr=
ee-vect-slp.cc:4684
0x11ad92b vect_optimize_slp_pass::run()
=20=20=20=20=20=20=20
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220904/work/gcc-13-20220904/gcc/tr=
ee-vect-slp.cc:5545
0x11ada40 vect_optimize_slp(vec_info*)
=20=20=20=20=20=20=20
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220904/work/gcc-13-20220904/gcc/tr=
ee-vect-slp.cc:5568
0x11ada40 vect_optimize_slp(vec_info*)
=20=20=20=20=20=20=20
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220904/work/gcc-13-20220904/gcc/tr=
ee-vect-slp.cc:5564
0x11b5a9c vect_slp_analyze_bb_1
=20=20=20=20=20=20=20
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220904/work/gcc-13-20220904/gcc/tr=
ee-vect-slp.cc:7289
0x11b5a9c vect_slp_region
=20=20=20=20=20=20=20
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220904/work/gcc-13-20220904/gcc/tr=
ee-vect-slp.cc:7377
0x11b74db vect_slp_bbs
=20=20=20=20=20=20=20
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220904/work/gcc-13-20220904/gcc/tr=
ee-vect-slp.cc:7568
0x11b7783 vect_slp_function(function*)
=20=20=20=20=20=20=20
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220904/work/gcc-13-20220904/gcc/tr=
ee-vect-slp.cc:7656
0x11c06a1 execute
=20=20=20=20=20=20=20
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220904/work/gcc-13-20220904/gcc/tr=
ee-vectorizer.cc:1532=