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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/108821] [11/12/13 Regression] LIM reissuing a
 violatile store when it cannot/should not
Date: Thu, 16 Feb 2023 17:20:59 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 11.1.0
X-Bugzilla-Keywords: wrong-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: pinskia at gcc dot gnu.org
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X-Bugzilla-Target-Milestone: 11.4
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108821

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |11.4
             Status|UNCONFIRMED                 |NEW
           Keywords|                            |wrong-code
   Last reconfirmed|                            |2023-02-16
     Ever confirmed|0                           |1
            Summary|Extra volatile access with  |[11/12/13 Regression] LIM
                   |-O2 -ftree-loop-im since    |reissuing a violatile store
                   |GCC-11                      |when it cannot/should not

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.

Re-issueing dependent store of *x.1_3 from loop 1 on exit 3 -> 4
Moving statement
gCrc_lsm.9 =3D gCrc;
(cost 0) out of loop 1.=