https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52412
ktkachov at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |ktkachov at gcc dot gnu.org
Resolution|--- |FIXED
--- Comment #3 from ktkachov at gcc dot gnu.org ---
Both trunk 4.10 and 4.8.3 generate:
t0m:
@ args = 0, pretend = 0, frame = 0
@ frame_needed = 0, uses_anonymous_args = 0
ldr r3, [r0, #4]
movs r1, #10
push {r4, r5, lr}
ldr r5, .L8
uxtb r2, r3
.L2:
ldr r4, [r0, #268]
subs r1, r1, #1
eor r4, r4, r2
ldr r4, [r5, r4, lsl #2]
str r4, [r0, #268]
bne .L2
add r3, r3, r0
movs r1, #1
strb r1, [r3, #12]
ldr r3, [r0, #8]
cmp r3, r1
beq .L5
cmp r3, #2
beq .L5
pop {r4, r5, pc}
.L5:
ldr r3, [r0]
strb r2, [r3]
pop {r4, r5, pc}
.L9:
.align 2
.L8:
.word Table
No superfluous mov appears, so I think this can be closed now...
