[Bug target/103784] suboptimal code for returning bool value on target ppc

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103784

--- Comment #14 from Richard Biener <rguenth at gcc dot gnu.org> ---
I get, for -mcpu=power9 or power10

foo:
.LFB0:
        .cfi_startproc
        cmpwi 0,3,2
        bgt 0,.L3
        cmpwi 0,4,9
        li 3,1
        isel 3,0,3,1
        blr
        .p2align 4,,15
.L3:
        li 3,0
        blr

and I don't see any zero_extend anywhere.