Xcode 3.0 gcc compiler output using -Os (optimize for code size) switch, x86 target:

0x00001ed8  <+0022>  mov    eax,DWORD PTR [ebx]
0x00001eda  <+0024>  inc    eax
0x00001edb  <+0025>  mov    DWORD PTR [ebx],eax
0x00001edd  <+0027>  mov    eax,DWORD PTR [ebx+0x4]
0x00001ee0  <+0030>  inc    eax
0x00001ee1  <+0031>  mov    DWORD PTR [ebx+0x4],eax
0x00001ee4  <+0034>  mov    eax,DWORD PTR [ecx]
0x00001ee6  <+0036>  mov    edx,DWORD PTR [ecx+0x4]
0x00001ee9  <+0039>  add    eax,0x1
0x00001eec  <+0042>  adc    edx,0x0
0x00001eef  <+0045>  mov    DWORD PTR [ecx],eax
0x00001ef1  <+0047>  mov    DWORD PTR [ecx+0x4],edx
0x00001ef4  <+0050>  mov    eax,DWORD PTR [ecx+0x8]
0x00001ef7  <+0053>  mov    edx,DWORD PTR [ecx+0xc]
0x00001efa  <+0056>  add    eax,0x1
0x00001efd  <+0059>  adc    edx,0x0
0x00001f01  <+0063>  mov    DWORD PTR [ecx+0x8],eax
0x00001f04  <+0066>  mov    DWORD PTR [ecx+0xc],edx