lkml.org 
[lkml]   [2007]   [May]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [Bug 8501] udivdi3 absence with gcc-4.3.0 on kernels 2.6.20.11 & 2.6.22.-rc1
From
Date
On Fri, 2007-05-18 at 15:29 -0700, Andrew Morton wrote:
> We use the above idiom in several places. A suitable fix might be to hunt
> down those various sites and then make them call a helper function which
> does
>
> if (unlikely(ns >= NSEC_PER_SEC)) {
> do_div(...)
> }
>
> (Better would be to inline the comparison and to uninline the do_div(),
> if it's a 32-bit arch. Doing all this in a backportable fashion may
> prove tricky)

A suitable fix would be to slap the gcc maintainers with a large trout
to fix this nonsense. At least they should provide a command line option
to prevent this extra intelligent optimization.

tglx


-
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/

\
 
 \ /
  Last update: 2007-05-19 01:09    [W:0.040 / U:1.728 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site