Subject: Re: [patch 14/44] generic hweight{64,32,16,8}()

From: Michael Tokarev <[email-masked]>
Date: Wed, 01 Feb 2006 12:26:10 +0300

Andi Kleen wrote:
> On Wednesday 01 February 2006 10:02, Akinobu Mita wrote:
> 
>>+static inline unsigned int hweight32(unsigned int w)
[]
> How large are these functions on x86? Maybe it would be better to not inline them,
> but put it into some C file out of line.

hweight8	47 bytes
hweight16	76 bytes
hweight32	97 bytes
hweight64	56 bytes (NOT inlining hweight32)
hweight64	197 bytes (inlining hweight32)

Those are when compiled as separate non-inlined functions,
with pushl %ebp and ret.

/mjt