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From: "ro at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/96147] New: [11 regression]
 gcc.dg/vect/slp-43.c etc. FAIL
Date: Fri, 10 Jul 2020 08:23:55 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96147

            Bug ID: 96147
           Summary: [11 regression] gcc.dg/vect/slp-43.c etc. FAIL
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ro at gcc dot gnu.org
                CC: rguenth at gcc dot gnu.org
  Target Milestone: ---
            Target: sparc-sun-solaris2.11

Created attachment 48855
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D48855&action=3Dedit
32-bit sparc-sun-solaris2.11 slp-43.c.163t.vect

Between 20200708 (30fdaead5b7880c4e9f140618e26ad1c545642d5) and 20200709
(fab263ab0fc10ea08409b80afa7e8569438b8d28), a couple of testcases regressed=
 on
Solaris/SPARC, both 32 and 64-bit:

+XPASS: gcc.dg/vect/bb-slp-32.c -flto -ffat-lto-objects  scan-tree-dump slp2
"vectorization is not profitable"
+XPASS: gcc.dg/vect/bb-slp-32.c scan-tree-dump slp2 "vectorization is not
profitable"
+XPASS: gcc.dg/vect/bb-slp-9.c -flto -ffat-lto-objects  scan-tree-dump-times
slp2 "basic block vectorized" 1
+XPASS: gcc.dg/vect/bb-slp-9.c scan-tree-dump-times slp2 "basic block
vectorized" 1
+FAIL: gcc.dg/vect/slp-43.c -flto -ffat-lto-objects  scan-tree-dump-times v=
ect
"vectorized 1 loops" 2
+FAIL: gcc.dg/vect/slp-43.c scan-tree-dump-times vect "vectorized 1 loops" 2
+FAIL: gcc.dg/vect/slp-45.c -flto -ffat-lto-objects  scan-tree-dump-times v=
ect
"vectorized 1 loops" 13
+FAIL: gcc.dg/vect/slp-45.c scan-tree-dump-times vect "vectorized 1 loops" =
13

There's a similar regression reported on ia64-suse-linux-gnu.

Dumps for the FAILs attached.=