[Bug middle-end/93902] conversion from 64-bit long or unsigned long to double prevents simple optimization

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93902

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |enhancement

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
foo3 is more complex because x86 does not have an unsigned long 64bit to double
so it has to do some more complex.

It is much simplier for aarch64 though:
        cmp     x0, x1
        beq     .L8
.L6:
        ret
        .p2align 2,,3
.L8:
        ucvtf   d0, x0
        fcmp    d0, d0
        beq     .L6
        b       bar()