[Bug rtl-optimization/109866] Sometimes using sub/test instead just test

[ubizjak at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109866

--- Comment #2 from Uroš Bizjak <ubizjak at gmail dot com> ---
A small improvement would be:

        subl    %esi, %edi
        je      .L5
        testl   %edi, %edi
        jle     .L3
        jmp     h()
.L3:
        jmp     t()
.L5:
        jmp     g()

Not to mention the unoptimal handling of tail calls...