[Bug c/106886] New: ice in vect_schedule_slp_node

[Bug c/106886] New: ice in vect_schedule_slp_node

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106886

            Bug ID: 106886
           Summary: ice in vect_schedule_slp_node
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com
  Target Milestone: ---

Created attachment 53547
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53547&action=edit
C source code

Recent gcc:

$ ../results/bin/gcc -c -O2 -march=bdver2 bug844.c
during GIMPLE pass: slp
rl2auxgeom.c: In function ‘rl2_set_coord_seq_value’:
rl2auxgeom.c:3980:1: internal compiler error: Segmentation fault
0xd67469 crash_signal(int)
        ../../trunk.git/gcc/toplev.cc:314
0x103b8f2 vect_schedule_slp_node(vec_info*, _slp_tree*, _slp_instance*)
        ../../trunk.git/gcc/vec.h:0
0x102f33f vect_schedule_scc(vec_info*, _slp_tree*, _slp_instance*,
hash_map<_slp_tree*, slp_scc_info,
simple_hashmap_traits<default_hash_traits<_slp_tree*>, slp_scc_info> >&, int&,
vec<_slp_tree*, va_heap, vl_ptr>&)
        ../../trunk.git/gcc/tree-vect-slp.cc:9096
0x102f05c vect_schedule_scc(vec_info*, _slp_tree*, _slp_instance*,
hash_map<_slp_tree*, slp_scc_info,
simple_hashmap_traits<default_hash_traits<_slp_tree*>, slp_scc_info> >&, int&,
vec<_slp_tree*, va_heap, vl_ptr>&)
        ../../trunk.git/gcc/tree-vect-slp.cc:9077

I will have my usual go at finding a git range and doing a reduction.

[Bug c/106886] ice in vect_schedule_slp_node

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106886

--- Comment #1 from David Binderman <dcb314 at hotmail dot com> ---
Git range seems to be 2985049049f12b0a..0b0a3cdbff64d97e, from near the start
of the month.

There are 29 commits in that range.

[Bug c/106886] ice in vect_schedule_slp_node

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106886

--- Comment #2 from David Binderman <dcb314 at hotmail dot com> ---
Reduced C code seems to be:

rl2GeomExport64_little_endian, rl2GeomExport64_little_endian_arch;
rl2GeomExport64(unsigned char *p, double value) {
  union {
    unsigned char byte[8];
    double double_value
  } convert;
  convert.double_value = value;
  if (rl2GeomExport64_little_endian_arch)
    if (rl2GeomExport64_little_endian) {
      *(p + 7) = convert.byte[0];
      *(p + 6) = convert.byte[1];
      *(p + 5) = convert.byte[2];
      *(p + 4) = convert.byte[3];
      *(p + 3) = convert.byte[4];
      *(p + 2) = convert.byte[5];
      *(p + 1) = convert.byte[6];
      *p = convert.byte[7];
    } else
      *p = convert.byte[7];
}

[Bug c/106886] [13 Regression] ICE in vect_schedule_slp_node since r13-2348-gd2694766dcfff027

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106886

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2022-09-08
            Summary|ice in                      |[13 Regression] ICE in
                   |vect_schedule_slp_node      |vect_schedule_slp_node
                   |                            |since
                   |                            |r13-2348-gd2694766dcfff027
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
                 CC|                            |marxin at gcc dot gnu.org,
                   |                            |rsandifo at gcc dot gnu.org

--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
Started with r13-2348-gd2694766dcfff027.

[Bug tree-optimization/106886] [13 Regression] ICE in vect_schedule_slp_node since r13-2348-gd2694766dcfff027

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106886

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |13.0
          Component|c                           |tree-optimization
            Version|12.0                        |13.0

[Bug tree-optimization/106886] [13 Regression] ICE in vect_schedule_slp_node since r13-2348-gd2694766dcfff027

[rsandifo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106886

rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |rsandifo at gcc dot gnu.org

--- Comment #4 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> ---
Oops, looks like a silly typo.  Testing a patch.

[Bug tree-optimization/106886] [13 Regression] ICE in vect_schedule_slp_node since r13-2348-gd2694766dcfff027

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106886

--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The trunk branch has been updated by Richard Sandiford <rsandifo@gcc.gnu.org>:

https://gcc.gnu.org/g:338a5b0d7da84ef1f6c01dd96abf2c6bc830f403

commit r13-2544-g338a5b0d7da84ef1f6c01dd96abf2c6bc830f403
Author: Richard Sandiford <richard.sandiford@arm.com>
Date:   Thu Sep 8 16:18:28 2022 +0100

    vect: Fix scalar stmt typo in vect_optimize_slp_pass [PR106886]

    Fix a stupid typo in my vect_optimize_slp_pass patch.

    gcc/
            PR tree-optimization/106886
            * tree-vect-slp.cc
(vect_optimize_slp_pass::get_result_with_layout):
            Fix copying of scalar stmts.

    gcc/testsuite/
            PR tree-optimization/106886
            * gcc.dg/vect/bb-slp-layout-21.c: New test.

[Bug tree-optimization/106886] [13 Regression] ICE in vect_schedule_slp_node since r13-2348-gd2694766dcfff027

[rsandifo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106886

rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #6 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> ---
Fixed.