------- Comment #12 from ramana at gcc dot gnu dot org 2009-06-05 23:16 -------
(In reply to comment #10)
> Ramana, can you please add the exact command line you are using (so that I can
> see what flags you use and what cpu you target) and the exact output you are
> expecting? I have hacked things such that the store is cross-jumped but I
> still don't get an autoincrement insn. I get this for arm7-r with r147999,
> -Os, and my hack:
Sorry about the late response, I sort of dropped the ball on this one. The
target was essentially default arm which is armv4t and I suspect the command
line was -O2, -O3 and -Os.
Yes the case where you show is where I would have expected an auto-increment .
I presume this is after the new cross jumping work you've done -
>
> .file "t.c"
> .text
> .align 2
> .global foo
> .type foo, %function
> foo:
> @ args = 0, pretend = 0, frame = 0
> @ frame_needed = 0, uses_anonymous_args = 0
> ldr r3, #0
> stmfd sp!, {r4, r5, lr}
> mov ip, r3
> b .L2
> .L4:
> ldr r4, [r1, r3]
> movw r5, #39030
> cmp r4, #0
> movw r4, #4660
> moveq r4, r5
> str r4, [r2, r3]
> add r3, r3, #4 @ I suppose you expect an autoinc
> here?
> .L2:
> cmp ip, r0
> add ip, ip, #1
> blt .L5
> ldmfd sp!, {r4, r5, pc}
> .size foo, .-foo
> .ident "GCC: (GNU) 4.5.0 20090530 (experimental) [trunk revision
> 147999]"
>
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34849
