[Bug target/64669] [5 Regression] aarch64-linux profiledbootstrap failure

[jiwang at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64669

--- Comment #10 from Jiong Wang <jiwang at gcc dot gnu.org> ---
(In reply to Richard Henderson from comment #8)
> Indeed, if I force used_in_cond_stmt_p to return false, which forces
> the use of the emit_cstore path, which means we return a proper
> boolean value instead of a CCmode value, the test case doesn't ICE.
> 
> Moreover, combine does in fact remove the redundant compare and we
> are left with
> 
>         cmp     w0, 39
>         ccmp    w0, 10, 4, ne
>         bne     .L19
> 
> I think I was wrong to approve the ccmp patch with the used_in_cond_stmt_p
> logic in the first place, and that it should all be removed.

Richard, will you send out the patch? I could help testing