| Date | Sat, 08 Feb 2014 10:52:07 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH 02/17] x86, lto: Disable fancy hweight optimizations for LTO v2 |
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On 02/08/2014 12:01 AM, Andi Kleen wrote: > The fancy x86 hweight uses different compiler options for the > hweight file. This does not work with LTO. Just disable the optimization > with LTO
No, I'm going to NAK this. This means not using the POPCNT instruction if LTO is enabled, and that really isn't an acceptable option.
-hpa
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