------- Comment #4 from rguenth at gcc dot gnu dot org 2009-09-03 13:06 -------
I get different .text sizes for _umoddi3_s.o:
- Start of section headers: 676 (bytes into file)
+ Start of section headers: 684 (bytes into file)
...
- [ 1] .text PROGBITS 00000000 000040 000148 00 AX 0 0
1
6
+ [ 1] .text PROGBITS 00000000 000040 000150 00 AX 0 0
1
6
which amounts to different asm:
@@ -11,129 +11,135 @@
4: 56 push %esi
5: 83 ec 20 sub $0x20,%esp
8: 8b 7d 14 mov 0x14(%ebp),%edi
- b: 8b 45 08 mov 0x8(%ebp),%eax
+ b: 8b 55 08 mov 0x8(%ebp),%edx
e: 8b 4d 10 mov 0x10(%ebp),%ecx
11: 8b 75 0c mov 0xc(%ebp),%esi
14: 85 ff test %edi,%edi
- 16: 89 45 e8 mov %eax,-0x18(%ebp)
- 19: 89 4d f4 mov %ecx,-0xc(%ebp)
- 1c: 89 45 f0 mov %eax,-0x10(%ebp)
- 1f: 89 f2 mov %esi,%edx
+ 16: 89 d0 mov %edx,%eax
+ 18: 89 4d f4 mov %ecx,-0xc(%ebp)
+ 1b: 89 55 f0 mov %edx,-0x10(%ebp)
+ 1e: 89 75 ec mov %esi,-0x14(%ebp)
21: 75 15 jne 0x38
23: 39 f1 cmp %esi,%ecx
- 25: 76 49 jbe 0x70
- 27: f7 f1 div %ecx
- 29: 89 d0 mov %edx,%eax
- 2b: 31 d2 xor %edx,%edx
- 2d: 83 c4 20 add $0x20,%esp
- 30: 5e pop %esi
- 31: 5f pop %edi
- 32: 5d pop %ebp
- 33: c3 ret
- 34: 8d 74 26 00 lea 0x0(%esi,%eiz,1),%esi
+ 25: 76 51 jbe 0x78
+ 27: 89 f2 mov %esi,%edx
+ 29: f7 f1 div %ecx
+ 2b: 89 d0 mov %edx,%eax
+ 2d: 31 d2 xor %edx,%edx
+ 2f: 83 c4 20 add $0x20,%esp
+ 32: 5e pop %esi
+ 33: 5f pop %edi
+ 34: 5d pop %ebp
+ 35: c3 ret
+ 36: 66 90 xchg %ax,%ax
38: 39 f7 cmp %esi,%edi
- 3a: 77 54 ja 0x90
- 3c: 0f bd c7 bsr %edi,%eax
- 3f: 83 f0 1f xor $0x1f,%eax
- 42: 89 45 ec mov %eax,-0x14(%ebp)
- 45: 75 59 jne 0xa0
+ 3a: 77 5c ja 0x98
+ 3c: 0f bd d7 bsr %edi,%edx
+ 3f: 83 f2 1f xor $0x1f,%edx
+ 42: 89 55 e8 mov %edx,-0x18(%ebp)
+ 45: 75 61 jne 0xa8
47: 8b 4d f0 mov -0x10(%ebp),%ecx
4a: 39 4d f4 cmp %ecx,-0xc(%ebp)
- 4d: 0f 96 c1 setbe %cl
- 50: 39 f7 cmp %esi,%edi
- 52: 0f 92 c0 setb %al
- 55: 08 c1 or %al,%cl
- 57: 74 0b je 0x64
- 59: 8b 75 f0 mov -0x10(%ebp),%esi
- 5c: 2b 75 f4 sub -0xc(%ebp),%esi
- 5f: 19 fa sbb %edi,%edx
- 61: 89 75 f0 mov %esi,-0x10(%ebp)
- 64: 8b 45 f0 mov -0x10(%ebp),%eax
- 67: 83 c4 20 add $0x20,%esp
- 6a: 5e pop %esi
- 6b: 5f pop %edi
- 6c: 5d pop %ebp
- 6d: c3 ret
- 6e: 66 90 xchg %ax,%ax
- 70: 85 c9 test %ecx,%ecx
- 72: 75 0b jne 0x7f
- 74: b8 01 00 00 00 mov $0x1,%eax
- 79: 31 d2 xor %edx,%edx
- 7b: f7 f1 div %ecx
- 7d: 89 c1 mov %eax,%ecx
- 7f: 89 f0 mov %esi,%eax
+ 4d: 0f 96 c2 setbe %dl
+ 50: 3b 7d ec cmp -0x14(%ebp),%edi
+ 53: 0f 92 c0 setb %al
+ 56: 08 c2 or %al,%dl
+ 58: 74 0e je 0x68
+ 5a: 8b 45 ec mov -0x14(%ebp),%eax
+ 5d: 2b 4d f4 sub -0xc(%ebp),%ecx
+ 60: 19 f8 sbb %edi,%eax
+ 62: 89 4d f0 mov %ecx,-0x10(%ebp)
+ 65: 89 45 ec mov %eax,-0x14(%ebp)
+ 68: 8b 45 f0 mov -0x10(%ebp),%eax
+ 6b: 8b 55 ec mov -0x14(%ebp),%edx
+ 6e: 83 c4 20 add $0x20,%esp
...
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41241
