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* [Bug tree-optimization/97500] New: [11 Regression] ICE in vect_schedule_slp_instance, at tree-vect-slp.c:5094 since r11-3823-g126ed72b9f48f853
@ 2020-10-20  7:34 marxin at gcc dot gnu.org
  2020-10-20  7:34 ` [Bug tree-optimization/97500] " marxin at gcc dot gnu.org
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: marxin at gcc dot gnu.org @ 2020-10-20  7:34 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97500

            Bug ID: 97500
           Summary: [11 Regression] ICE in vect_schedule_slp_instance, at
                    tree-vect-slp.c:5094 since r11-3823-g126ed72b9f48f853
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: rguenth at gcc dot gnu.org
  Target Milestone: ---

Since the revision, the following fails:

$ gfortran
/home/marxin/Programming/gcc/gcc/testsuite/gfortran.fortran-torture/execute/pr57396.f90
-O3 -fno-guess-branch-probability -c
during GIMPLE pass: vect
/home/marxin/Programming/gcc/gcc/testsuite/gfortran.fortran-torture/execute/pr57396.f90:30:0:

   30 |   use testmod
      | 
internal compiler error: in vect_schedule_slp_instance, at tree-vect-slp.c:5094
0x738c15 vect_schedule_slp_instance
        /home/marxin/Programming/gcc/gcc/tree-vect-slp.c:5094
0x10c8a37 vect_schedule_slp_instance
        /home/marxin/Programming/gcc/gcc/tree-vect-slp.c:5047
0x10c8a37 vect_schedule_slp_instance
        /home/marxin/Programming/gcc/gcc/tree-vect-slp.c:5047
0x10c8a37 vect_schedule_slp_instance
        /home/marxin/Programming/gcc/gcc/tree-vect-slp.c:5047
0x10ca782 vect_schedule_slp(vec_info*, vec<_slp_instance*, va_heap, vl_ptr>)
        /home/marxin/Programming/gcc/gcc/tree-vect-slp.c:5305
0x10aedb8 vect_transform_loop(_loop_vec_info*, gimple*)
        /home/marxin/Programming/gcc/gcc/tree-vect-loop.c:9095
0x10d070c try_vectorize_loop_1
        /home/marxin/Programming/gcc/gcc/tree-vectorizer.c:1089
0x10d1389 vectorize_loops()
        /home/marxin/Programming/gcc/gcc/tree-vectorizer.c:1226
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.

^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug tree-optimization/97500] [11 Regression] ICE in vect_schedule_slp_instance, at tree-vect-slp.c:5094 since r11-3823-g126ed72b9f48f853
  2020-10-20  7:34 [Bug tree-optimization/97500] New: [11 Regression] ICE in vect_schedule_slp_instance, at tree-vect-slp.c:5094 since r11-3823-g126ed72b9f48f853 marxin at gcc dot gnu.org
@ 2020-10-20  7:34 ` marxin at gcc dot gnu.org
  2020-10-20  9:46 ` rguenth at gcc dot gnu.org
                   ` (2 subsequent siblings)
  3 siblings, 0 replies; 5+ messages in thread
From: marxin at gcc dot gnu.org @ 2020-10-20  7:34 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97500

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |10.2.0
           Priority|P3                          |P1
             Status|UNCONFIRMED                 |NEW
   Target Milestone|---                         |11.0
   Last reconfirmed|                            |2020-10-20
      Known to fail|                            |11.0
     Ever confirmed|0                           |1

^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug tree-optimization/97500] [11 Regression] ICE in vect_schedule_slp_instance, at tree-vect-slp.c:5094 since r11-3823-g126ed72b9f48f853
  2020-10-20  7:34 [Bug tree-optimization/97500] New: [11 Regression] ICE in vect_schedule_slp_instance, at tree-vect-slp.c:5094 since r11-3823-g126ed72b9f48f853 marxin at gcc dot gnu.org
  2020-10-20  7:34 ` [Bug tree-optimization/97500] " marxin at gcc dot gnu.org
@ 2020-10-20  9:46 ` rguenth at gcc dot gnu.org
  2020-10-21  9:43 ` cvs-commit at gcc dot gnu.org
  2020-10-21  9:43 ` rguenth at gcc dot gnu.org
  3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2020-10-20  9:46 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97500

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

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

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
I have a patch.

^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug tree-optimization/97500] [11 Regression] ICE in vect_schedule_slp_instance, at tree-vect-slp.c:5094 since r11-3823-g126ed72b9f48f853
  2020-10-20  7:34 [Bug tree-optimization/97500] New: [11 Regression] ICE in vect_schedule_slp_instance, at tree-vect-slp.c:5094 since r11-3823-g126ed72b9f48f853 marxin at gcc dot gnu.org
  2020-10-20  7:34 ` [Bug tree-optimization/97500] " marxin at gcc dot gnu.org
  2020-10-20  9:46 ` rguenth at gcc dot gnu.org
@ 2020-10-21  9:43 ` cvs-commit at gcc dot gnu.org
  2020-10-21  9:43 ` rguenth at gcc dot gnu.org
  3 siblings, 0 replies; 5+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2020-10-21  9:43 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97500

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:d94093013877cde3dce5c243099ad54668849400

commit r11-4185-gd94093013877cde3dce5c243099ad54668849400
Author: Richard Biener <rguenther@suse.de>
Date:   Wed Oct 21 10:54:54 2020 +0200

    tree-optimization/97500 - avoid SLP backedges for inductions

    Inductions are not vectorized as cycle but materialized from SCEV data.
    Filling in backedge SLP nodes confuses this process.

    2020-10-21  Richard Biener  <rguenther@suse.de>

            PR tree-optimization/97500
            * tree-vect-slp.c (vect_analyze_slp_backedges): Do not
            fill backedges for inductions.

            * gfortran.dg/pr97500.f90: New testcase.

^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug tree-optimization/97500] [11 Regression] ICE in vect_schedule_slp_instance, at tree-vect-slp.c:5094 since r11-3823-g126ed72b9f48f853
  2020-10-20  7:34 [Bug tree-optimization/97500] New: [11 Regression] ICE in vect_schedule_slp_instance, at tree-vect-slp.c:5094 since r11-3823-g126ed72b9f48f853 marxin at gcc dot gnu.org
                   ` (2 preceding siblings ...)
  2020-10-21  9:43 ` cvs-commit at gcc dot gnu.org
@ 2020-10-21  9:43 ` rguenth at gcc dot gnu.org
  3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2020-10-21  9:43 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97500

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

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

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.

^ permalink raw reply	[flat|nested] 5+ messages in thread

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2020-10-20  7:34 [Bug tree-optimization/97500] New: [11 Regression] ICE in vect_schedule_slp_instance, at tree-vect-slp.c:5094 since r11-3823-g126ed72b9f48f853 marxin at gcc dot gnu.org
2020-10-20  7:34 ` [Bug tree-optimization/97500] " marxin at gcc dot gnu.org
2020-10-20  9:46 ` rguenth at gcc dot gnu.org
2020-10-21  9:43 ` cvs-commit at gcc dot gnu.org
2020-10-21  9:43 ` rguenth at gcc dot gnu.org

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