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From: "hjl.tools at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug rtl-optimization/97836] [11 Regression] wrong code at -O1 on
 x86_64-pc-linux-gnu by r11-5029
Date: Sun, 15 Nov 2020 13:19:41 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97836

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|wrong code at -O1 on        |[11 Regression] wrong code
                   |x86_64-pc-linux-gnu         |at -O1 on
                   |                            |x86_64-pc-linux-gnu by
                   |                            |r11-5029
     Ever confirmed|0                           |1
                 CC|                            |hjl.tools at gmail dot com,
                   |                            |jh at suse dot cz
   Target Milestone|---                         |11.0
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2020-11-15

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
It is caused by r11-5029=