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Re: Building libstdc++
- To: Richard Kenner <kenner at vlsi1 dot ultra dot nyu dot edu>
- Subject: Re: Building libstdc++
- From: Richard Henderson <rth at redhat dot com>
- Date: Thu, 28 Dec 2000 02:26:16 -0800
- Cc: gdr at codesourcery dot com, gcc at gcc dot gnu dot org
- References: <10012261225.AA22554@vlsi1.ultra.nyu.edu>
On Tue, Dec 26, 2000 at 07:24:40AM -0500, Richard Kenner wrote:
> I'd like to understand what those psuedo-ops are there for, though,
> before we just delete them.
It's supposed to help branch prediction. We want to not predict
around the loop, so we branch forward to a branch back to the
head of the ll/sc loop.
I guess we'll have to remove that bit o cleverness for dec as...
> As to the comment lines, they clearly needn't be in the generated
> assembler code.
Last I checked, both gas and dec as accept C comments always.
But as you say it isn't really needed.
r~