[Bug middle-end/30521] "if (i == n) ++i;" or "i += i == n;"?

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2007-01-21 08:54 -------
I think this has been fixed already, for PPC with 4.0.2, we get:
_f:
        mr r2,r3
        addi r3,r3,1
        cmpw cr7,r3,r4
        bnelr cr7
        addi r3,r2,2
        blr
        .align 2
        .p2align 4,,15
        .globl _f1
_f1:
        addi r3,r3,1
        xor r0,r3,r4
        subfic r0,r0,0
        addze r0,r3
        mr r3,r0
        blr


While on the trunk we get:
_f:
        addi r3,r3,1
        xor r0,r3,r4
        subfic r0,r0,0
        addze r0,r3
        mr r3,r0
        blr
        .align 2
        .globl _f1
_f1:
        addi r3,r3,1
        xor r0,r3,r4
        subfic r0,r0,0
        addze r0,r3
        mr r3,r0
        blr


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30521