------- Additional Comments From nickc at redhat dot com 2009-07-10 08:21
-------
Hi Chris,
> Unfortunately, I must report that once again we need to remove instructions
> that don't belong like mrrc, blx, ldc2, usat, etc.
I am still not seeing this. You will have to show me a way to reproduce the
effect.
Not for reference this is what I am currently seeing with my local test case:
% cat 10288.s
.text
foo:
.word 0x4c585ee5
.word 0x01a23597
.word 0x3d9da24e
.word 0x46647659
.word 0x77c1cdb4
.word 0xe640361f
.word 0x4c585ee5
.word 0xd446399e
.word 0x11d87ed1
.word 0x44afa697
.word 0xd4bf78b4
.word 0xbc041350
nop
.word 0x4c585ee5
.word 0xfd37a04f
.word 0xfabf5236
.word 0x46647659 @ strbmi r7, [r4], -r9, asr r6
.word 0x77c1cdb4 @ strbvc ip, [r1, r4, lsr sp]
.word 0xe640361f @ strb r3, [r0], -pc, lsl r6
.word 0x3d9da24e @ lfmcc f2, 1, [sp, #312]
% arm-eabi-as 10288.s -o 10288.o
% arm-eabi-objdump -D -j .text -marm7tdmi 10288.o
0: 4c585ee5 ldclmi 14, cr5, [r8], {229} ; 0xe5
4: 01a23597 undefined instruction 0x01a23597
8: 3d9da24e lfmcc f2, 1, [sp, #312] ; (ldccc 2, cr10, [sp,
#312]) ; 0x138
c: 46647659 undefined instruction 0x46647659
10: 77c1cdb4 undefined instruction 0x77c1cdb4
14: e640361f undefined instruction 0xe640361f
18: 4c585ee5 ldclmi 14, cr5, [r8], {229} ; 0xe5
1c: d446399e strble r3, [r6], #-2462 ; 0x99e
20: 11d87ed1 ldrsbne r7, [r8, #225] ; 0xe1
24: 44afa697 strtmi sl, [pc], #1687 ; 2c <foo+0x2c>
28: d4bf78b4 ldrtle r7, [pc], #2228 ; 30 <foo+0x30>
2c: bc041350 stclt 3, cr1, [r4], {80} ; 0x50
30: e1a00000 nop ; (mov r0, r0)
34: 4c585ee5 ldclmi 14, cr5, [r8], {229} ; 0xe5
38: fd37a04f undefined instruction 0xfd37a04f
3c: fabf5236 undefined instruction 0xfabf5236
40: 46647659 undefined instruction 0x46647659
44: 77c1cdb4 undefined instruction 0x77c1cdb4
48: e640361f undefined instruction 0xe640361f
4c: 3d9da24e lfmcc f2, 1, [sp, #312] ; (ldccc 2, cr10, [sp,
#312]) ; 0x138
% arm-eabi-objdump -D -j .text 10288.o
0: 4c585ee5 mrrcmi 14, 14, r5, r8, cr5
4: 01a23597 undefined instruction 0x01a23597
8: 3d9da24e lfmcc f2, 1, [sp, #312] ; (ldccc 2, cr10, [sp,
#312]) ; 0x138
c: 46647659 undefined instruction 0x46647659
10: 77c1cdb4 undefined instruction 0x77c1cdb4
14: e640361f undefined instruction 0xe640361f
18: 4c585ee5 mrrcmi 14, 14, r5, r8, cr5
1c: d446399e strble r3, [r6], #-2462 ; 0x99e
20: 11d87ed1 ldrsbne r7, [r8, #225] ; 0xe1
24: 44afa697 strtmi sl, [pc], #1687 ; 2c <foo+0x2c>
28: d4bf78b4 ldrtle r7, [pc], #2228 ; 30 <foo+0x30>
2c: bc041350 stclt 3, cr1, [r4], {80} ; 0x50
30: e1a00000 nop ; (mov r0, r0)
34: 4c585ee5 mrrcmi 14, 14, r5, r8, cr5
38: fd37a04f ldc2 0, cr10, [r7, #-316]! ; 0xfffffec4
3c: fabf5236 blx fefd491c <foo+0xfefd491c>
40: 46647659 undefined instruction 0x46647659
44: 77c1cdb4 undefined instruction 0x77c1cdb4
48: e640361f undefined instruction 0xe640361f
4c: 3d9da24e lfmcc f2, 1, [sp, #312] ; (ldccc 2, cr10, [sp,
#312]) ; 0x138
Cheers
Nick
--
http://sourceware.org/bugzilla/show_bug.cgi?id=10288
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