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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug testsuite/108898] [13 Regression] Test introduced by
 r13-6278-g3da77f217c8b2089ecba3eb201e727c3fcdcd19d failed on i386
Date: Wed, 15 Mar 2023 09:57:18 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108898

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2023-03-15
     Ever confirmed|0                           |1

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
It looks like a mismatch of epilogue vectorization expectation?  Adding
--param vect-epilogues-nomask=3D0 to all gets

FAIL: gcc.dg/vect/vect-simd-clone-16b.c scan-tree-dump-times vect "[\\n\\r]
[^\\n]* =3D foo\\.simdclone" 3
FAIL: gcc.dg/vect/vect-simd-clone-16e.c scan-tree-dump-times vect "[\\n\\r]
[^\\n]* =3D foo\\.simdclone" 3
FAIL: gcc.dg/vect/vect-simd-clone-17b.c scan-tree-dump-times vect "[\\n\\r]
[^\\n]* =3D foo\\.simdclone" 3
FAIL: gcc.dg/vect/vect-simd-clone-17e.c scan-tree-dump-times vect "[\\n\\r]
[^\\n]* =3D foo\\.simdclone" 3
FAIL: gcc.dg/vect/vect-simd-clone-18b.c scan-tree-dump-times vect "[\\n\\r]
[^\\n]* =3D foo\\.simdclone" 3
FAIL: gcc.dg/vect/vect-simd-clone-18e.c scan-tree-dump-times vect "[\\n\\r]
[^\\n]* =3D foo\\.simdclone" 3

and dropping yields

FAIL: gcc.dg/vect/vect-simd-clone-16.c scan-tree-dump-times vect "[\\n\\r]
[^\\n]* =3D foo\\.simdclone" 2
FAIL: gcc.dg/vect/vect-simd-clone-16f.c scan-tree-dump-times vect "[\\n\\r]
[^\\n]* =3D foo\\.simdclone" 2
FAIL: gcc.dg/vect/vect-simd-clone-17.c scan-tree-dump-times vect "[\\n\\r]
[^\\n]* =3D foo\\.simdclone" 2
FAIL: gcc.dg/vect/vect-simd-clone-17f.c scan-tree-dump-times vect "[\\n\\r]
[^\\n]* =3D foo\\.simdclone" 2
FAIL: gcc.dg/vect/vect-simd-clone-18.c scan-tree-dump-times vect "[\\n\\r]
[^\\n]* =3D foo\\.simdclone" 2
FAIL: gcc.dg/vect/vect-simd-clone-18f.c scan-tree-dump-times vect "[\\n\\r]
[^\\n]* =3D foo\\.simdclone" 2

and the logs show we see 3 all the times.  If you tried to match what
targets do automatically that's a lost cause - I suggest to disable
epilog vectorization instead in all testcases.=