Messages in this thread | | | Subject | Re: [Bug 8501] udivdi3 absence with gcc-4.3.0 on kernels 2.6.20.11 & 2.6.22.-rc1 | From | Thomas Gleixner <> | Date | Sat, 19 May 2007 01:12:23 +0200 |
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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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