Subject: Re: more agressive kernel and std library build cflags
To: Bill Sommerfeld <sommerfeld@orchard.medford.ma.us>
From: bgrayson <bgrayson@lore.ece.utexas.edu>
List: port-i386
Date: 01/22/1997 12:17:01
Bill Sommerfeld wrote:
>
> With respect to your suggested compiler flags:
>
> -O6 -fomit-frame-pointer -m486
>
> My understanding is that there is no difference between -O2 and -O6 in
> gcc for the x86 architecture.
According to the man page, -O3 is supposed to be equivalent to
-O2 -finline-functions, so I'd think -O3 would be at least a
little better -- there are functions in fd.c, com.c, etc that
could be inlined, saving a few cycles here and there. Or am I
missing something?
Brian
--
Brian Grayson (bgrayson@ece.utexas.edu)
Graduate Student, Electrical and Computer Engineering
The University of Texas at Austin
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