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
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