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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/113857] fmov should be used to zero the upper bits of
 the vector register
Date: Fri, 09 Feb 2024 23:41:00 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113857

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Without f16 extension, s64 could be done as:
```
and x0, x0, 0xffff
fmov s0, x0
```

Similarly if we are doing a `c64` .=