[Bug testsuite/94402] New: FAIL: gfortran.dg/vect/vect-8.f90 -O scan-tree-dump-times vect "vectorized 22 loops" 1

[Bug testsuite/94402] New: FAIL: gfortran.dg/vect/vect-8.f90 -O scan-tree-dump-times vect "vectorized 22 loops" 1

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94402

            Bug ID: 94402
           Summary: FAIL: gfortran.dg/vect/vect-8.f90   -O
                    scan-tree-dump-times vect "vectorized 22 loops" 1
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: testsuite
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: rguenth at gcc dot gnu.org, rsandifo at gcc dot gnu.org
  Target Milestone: ---
              Host: x86_64-linux-gnu
            Target: x86_64-linux-gnu

The test-case fails for quite some time. One can see it for instance here:
https://gcc.gnu.org/pipermail/gcc-testresults/2020-March/557495.html

[Bug testsuite/94402] FAIL: gfortran.dg/vect/vect-8.f90 -O scan-tree-dump-times vect "vectorized 22 loops" 1

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94402

--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Created attachment 48144
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48144&action=edit
vect-8.f90.161t.vect dump file

[Bug testsuite/94402] FAIL: gfortran.dg/vect/vect-8.f90 -O scan-tree-dump-times vect "vectorized 22 loops" 1

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94402

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Target Milestone|---                         |10.0
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2020-03-30

[Bug testsuite/94402] FAIL: gfortran.dg/vect/vect-8.f90 -O scan-tree-dump-times vect "vectorized 22 loops" 1

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94402

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
It only fails on systems with the libmvec enablement and vectorizes one more
loop.  Not sure how to "fix" the testcase (split out the offending function,
add some dg-target looking for libmvec enablement?)?

[Bug testsuite/94402] FAIL: gfortran.dg/vect/vect-8.f90 -O scan-tree-dump-times vect "vectorized 22 loops" 1

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94402

--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
Or scan for vectorized 22-23 loops?

[Bug testsuite/94402] FAIL: gfortran.dg/vect/vect-8.f90 -O scan-tree-dump-times vect "vectorized 22 loops" 1

[rguenther at suse dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94402

--- Comment #4 from rguenther at suse dot de <rguenther at suse dot de> ---
On Mon, 30 Mar 2020, marxin at gcc dot gnu.org wrote:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94402
> 
> --- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
> Or scan for vectorized 22-23 loops?

Works for me as well but then you don't catch 23->22 regression when
it's not that single loop.

[Bug testsuite/94402] FAIL: gfortran.dg/vect/vect-8.f90 -O scan-tree-dump-times vect "vectorized 22 loops" 1

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94402

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

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

--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> ---
That will catch testers that will newly have only 21 loops vectorized.
I'm going to send a patch for this.

[Bug testsuite/94402] FAIL: gfortran.dg/vect/vect-8.f90 -O scan-tree-dump-times vect "vectorized 22 loops" 1

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94402

--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Martin Liska <marxin@gcc.gnu.org>:

https://gcc.gnu.org/g:3a9db91bee496712656e0f8aecf55f39cffd8413

commit r10-7458-g3a9db91bee496712656e0f8aecf55f39cffd8413
Author: Martin Liska <mliska@suse.cz>
Date:   Mon Mar 30 17:49:10 2020 +0200

    Fix scan pattern of vect-8.f90 dump.

            PR testsuite/94402
            * gfortran.dg/vect/vect-8.f90: Allow 22 or 23 loops
            to be vectorized (based on libmvec presence).

[Bug testsuite/94402] FAIL: gfortran.dg/vect/vect-8.f90 -O scan-tree-dump-times vect "vectorized 22 loops" 1

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94402

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

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

--- Comment #7 from Martin Liška <marxin at gcc dot gnu.org> ---
Fixed on master.