Messages in this thread |  | | From | "Martin Eriksson" <> | Subject | Re: Compilation problem in ndisc.c / 2.5.1-pre2 : possible gcc bug? | Date | Wed, 28 Nov 2001 20:39:56 +0100 |
| |
----- Original Message ----- From: "Richard B. Johnson" <root@chaos.analogic.com> To: <erik@hensema.net> Cc: <linux-kernel@vger.kernel.org> Sent: Wednesday, November 28, 2001 8:09 PM Subject: Re: Compilation problem in ndisc.c / 2.5.1-pre2 : possible gcc bug?
> 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".
Correct me if I'm wrong, but I don't think "%edxadcl" really assembles....
_____________________________________________________ | Martin Eriksson <nitrax@giron.wox.org> | MSc CSE student, department of Computing Science | Umeå University, Sweden
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |