[Bug tree-optimization/52345] Missed optimization dealing with bools

["pinskia at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52345

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
For the trunk, they all come close (at least for aarch64):
f:
        cmp     w0, 0
        cset    w0, ne
        orr     w1, w0, w1
        cmp     w1, 0
        cset    w0, ne
        ret
        .size   f, .-f
        .align  2
        .p2align 3,,7
        .global f1
        .type   f1, %function
f1:
        cmp     w0, 0
        ccmp    w1, 0, 0, eq
        cset    w0, ne
        ret
        .size   f1, .-f1
        .align  2
        .p2align 3,,7
        .global f2
        .type   f2, %function
f2:
        orr     w0, w0, w1
        cmp     w0, 0
        cset    w0, ne
        ret

f1 and f2 are similar enough for aarch64 (at least for ThunderX).