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From: "seurer at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug testsuite/102905] New: [12 regression] several vector test
 cases fail on power 7 after r12-4490
Date: Fri, 22 Oct 2021 18:56:22 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102905

            Bug ID: 102905
           Summary: [12 regression] several vector test cases fail on
                    power 7 after r12-4490
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: testsuite
          Assignee: unassigned at gcc dot gnu.org
          Reporter: seurer at gcc dot gnu.org
  Target Milestone: ---

g:caab0139761b04226fab14d87c4a4f981d942bbf, r12-4490: 201 failures

> FAIL: gcc.dg/vect/vect-multitypes-4.c -flto -ffat-lto-objects  scan-tree-=
dump-times vect "Alignment of access forced using peeling" 2
> FAIL: gcc.dg/vect/vect-multitypes-4.c -flto -ffat-lto-objects  scan-tree-=
dump-times vect "Vectorizing an unaligned access" 8
> FAIL: gcc.dg/vect/vect-multitypes-4.c -flto -ffat-lto-objects  scan-tree-=
dump-times vect "vectorized 1 loops" 2
> FAIL: gcc.dg/vect/vect-multitypes-4.c scan-tree-dump-times vect "Alignmen=
t of access forced using peeling" 2
> FAIL: gcc.dg/vect/vect-multitypes-4.c scan-tree-dump-times vect "Vectoriz=
ing an unaligned access" 8
> FAIL: gcc.dg/vect/vect-multitypes-4.c scan-tree-dump-times vect "vectoriz=
ed 1 loops" 2
> FAIL: gcc.dg/vect/vect-peel-1.c -flto -ffat-lto-objects  scan-tree-dump-t=
imes vect "Alignment of access forced using peeling" 1
> FAIL: gcc.dg/vect/vect-peel-1.c -flto -ffat-lto-objects  scan-tree-dump-t=
imes vect "vectorized 1 loops" 1
> FAIL: gcc.dg/vect/vect-peel-1.c scan-tree-dump-times vect "Alignment of a=
ccess forced using peeling" 1
> FAIL: gcc.dg/vect/vect-peel-1.c scan-tree-dump-times vect "vectorized 1 l=
oops" 1

These are probably failing due to limitations in vector stuff on power 7.=20
Perhaps just skip these on power 7?


commit caab0139761b04226fab14d87c4a4f981d942bbf (HEAD, refs/bisect/bad)
Author: Richard Biener <rguenther@suse.de>
Date:   Mon Oct 18 15:55:22 2021 +0200

    Remove check_aligned parameter from vect_supportable_dr_alignment=