[Bug target/44588] Very inefficient 8bit mod/div

[hjl dot tools at gmail dot com]

------- Comment #1 from hjl dot tools at gmail dot com  2010-06-19 00:52 -------
Created an attachment (id=20941)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20941&action=view)
A patch

With this patch, I got

foo:
.LFB0:
        .cfi_startproc
        movl    %edi, %eax
        divb    %sil
        movb    %al, z(%rip)
        movsbl  %ah, %eax
        ret


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44588