[Bug target/101456] Unnecessary vzeroupper when upper bits of YMM registers already zero

[hjl.tools at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101456

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

           What    |Removed                     |Added
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  Attachment #51153|0                           |1
        is obsolete|                            |

--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> ---
Created attachment 51157
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51157&action=edit
A new patch