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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/114595] rtl-expand emit redundant store for bitwise-and
 expression
Date: Fri, 05 Apr 2024 02:49:14 +0000
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X-Bugzilla-Type: changed
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X-Bugzilla-Component: target
X-Bugzilla-Version: 13.2.0
X-Bugzilla-Keywords: missed-optimization
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X-Bugzilla-Who: pinskia at gcc dot gnu.org
X-Bugzilla-Status: RESOLVED
X-Bugzilla-Resolution: FIXED
X-Bugzilla-Priority: P3
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114595

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
   Target Milestone|---                         |14.0
         Resolution|---                         |FIXED

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Already fixed on the trunk. Most likely by r14-6420-g85c5efcffed19c .

We get now:
```
func_1:
        movzbl  g1(%rip), %eax
        andl    $1, %eax
        movb    %al, g2(%rip)
        movsbl  %al, %eax
        movl    %eax, g3(%rip)
```

There is a small extra zero extend but the extra load/store is gone=