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Date: Mon, 23 Jun 2014 10:55:21 +0200 From: Peter Zijlstra <peterz@...radead.org> To: Rasmus Villemoes <linux@...musvillemoes.dk> Cc: "H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>, x86@...nel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] x86: Micro-optimization in nhmex_rbox_get_constraint On Thu, Jun 19, 2014 at 03:15:31PM +0200, Rasmus Villemoes wrote: > Flipping the LSB doesn't require four lines of code. This shaves a few > bytes of the generated code, including a branch. > > Signed-off-by: Rasmus Villemoes <linux@...musvillemoes.dk> Thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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