Messages in this thread | | | Date | Wed, 28 Nov 2001 14:09:28 -0500 (EST) | From | "Richard B. Johnson" <> | Subject | Re: Compilation problem in ndisc.c / 2.5.1-pre2 : possible gcc bug? |
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On 28 Nov 2001, Erik Hensema wrote:
> > I've been looking into the compile problems of net/ipv6/ndisc.c in > 2.5.1-pre2 and I found that the asm generated by gcc (2.95.3) is wrong: > > This is a small part of a diff betweem two asm files generated by gcc, note > the missing \n's in the wrong code: > > - > - addl 0(%ebp), %edx > - adcl 4(%ebp), %edx > - adcl 8(%ebp), %edx > - adcl 12(%ebp), %edx > - adcl 0(%ecx), %edx > - adcl 4(%ecx), %edx > - adcl 8(%ecx), %edx > - adcl 12(%ecx), %edx > - adcl %edi, %edx > - adcl %eax, %edx > - adcl $0, %edx > - > + addl 0(%ebp), %edxadcl 4(%ebp), %edxadcl 8(%ebp), %edxadcl 12(%ebp), %edxadcl 0(%ecx), %edxadcl 4(%ecx), %edxadcl 8(%ecx), %edxadcl 12(%ecx), %edxadcl %edi, %edxadcl %eax, %edxadcl $0, %edx
This is probably just some loop unrolling, not some as you say "wrong code".
Cheers, Dick Johnson
Penguin : Linux version 2.4.1 on an i686 machine (799.53 BogoMips).
I was going to compile a list of innovations that could be attributed to Microsoft. Once I realized that Ctrl-Alt-Del was handled in the BIOS, I found that there aren't any.
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