Messages in this thread | | | Date | Wed, 03 Feb 2010 09:11:16 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH 2/5] bitops: compile time optimization for hweight_long(CONSTANT) |
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On 02/03/2010 07:47 AM, Peter Zijlstra wrote: > > From what I know the popcnt ins on x86 is relatively new, hpa was going > to look at supporting it using alternatives. >
And kernel-specific stuff like alternatives is pretty much the one thing that gcc *can't* do for us.
-hpa
-- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.
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