[Bug target/53133] XOR AL,AL to zero lower 8 bits of EAX/RAX causes partial register stall (Intel Core 2)

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53133

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|                            |5.5.0
             Status|NEW                         |RESOLVED
      Known to work|                            |6.1.0
   Target Milestone|---                         |6.0
           Keywords|                            |missed-optimization
         Resolution|---                         |FIXED

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
.L2:
        movl    mem(%rip), %eax
        shrq    $2, %rax
        andq    %rcx, %rax
        addq    %rax, %rsi
        subl    $1, %edx
        jne     .L2

So both versions now match up because of r6-3841.

So closing as fixed.