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From: "hjl.tools at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/101456] Unnecessary vzeroupper when upper bits of YMM
 registers already zero
Date: Wed, 28 Jul 2021 15:02:49 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101456

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |12.0
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED

--- Comment #7 from H.J. Lu <hjl.tools at gmail dot com> ---
Fixed for GCC 12.  Please reopen it if there are other cases where
vzeroupper should be skipped.=