[Bug middle-end/38126] suboptimal code for (a && b || !a && !b)

[svfuerst at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38126

Steven Fuerst <svfuerst at gmail dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |svfuerst at gmail dot com

--- Comment #3 from Steven Fuerst <svfuerst at gmail dot com> 2012-02-02 
05:25:34 UTC ---
For the first pair of functions, this is even faster:

    neg %rdi
    sbb %eax, %eax
    neg %rsi
    adc $1, %eax
    and $1, %eax
    retq