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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/106902] [11/12/13 Regression] Program compiled with -O3
 -mfma produces different result
Date: Mon, 12 Sep 2022 08:01:52 +0000
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X-Bugzilla-Type: changed
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: target
X-Bugzilla-Version: 12.2.0
X-Bugzilla-Keywords: needs-bisection, wrong-code
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X-Bugzilla-Priority: P2
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X-Bugzilla-Target-Milestone: 11.4
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106902

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Target Milestone|---                         |11.4
      Known to fail|                            |11.2.0, 12.2.0
           Priority|P3                          |P2
      Known to work|                            |10.3.0
           Keywords|                            |needs-bisection, wrong-code
             Target|X86_64                      |x86_64-*-*
                 CC|                            |rguenth at gcc dot gnu.org
             Status|UNCONFIRMED                 |NEW
            Summary|Program compiled with -O3   |[11/12/13 Regression]
                   |-mfma produces different    |Program compiled with -O3
                   |result                      |-mfma produces different
                   |                            |result
   Last reconfirmed|                            |2022-09-12

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.  -fno-tree-slp-vectorize avoids the issue.=