https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97873

Hongtao.liu <crazylht at gmail dot com> changed:

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

--- Comment #3 from Hongtao.liu <crazylht at gmail dot com> ---
> 
> where the smax:SI is late splitted IIRC.  That's probably not the optimal
> expansion choice.
> 
> I remember a duplicate bug.

PR92651?

we introduce

(define_expand "abs<mode>2"
  [(set (match_operand:SWI48x 0 "register_operand")
    (abs:SWI48x
      (match_operand:SWI48x 1 "register_operand")))]
  "TARGET_EXPAND_ABS"

Compile with -O2 -march=corei7 got

abs(int):
        movl    %edi, %eax
        cltd
        xorl    %edx, %eax
        subl    %edx, %eax
        ret

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