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Re: [PATCH] PROMOTE_FOR_CALL_ONLY on sparc
- To: Richard Henderson <rth at cygnus dot com>
- Subject: Re: [PATCH] PROMOTE_FOR_CALL_ONLY on sparc
- From: Jeffrey A Law <law at cygnus dot com>
- Date: Wed, 08 Dec 1999 11:00:17 -0700
- cc: Richard Kenner <kenner at vlsi1 dot ultra dot nyu dot edu>, davem at redhat dot com, gcc-patches at gcc dot gnu dot org
- Reply-To: law at cygnus dot com
In message <19991208011305.C3429@cygnus.com>you write:
> On Wed, Dec 08, 1999 at 04:11:44AM -0500, Richard Kenner wrote:
> > Right. The most common operations are addition and subtraction.
>
> Actually, the thing that makes Sparc64 different from Alpha
> and MIPS64 is the presence of a true 32-bit compare. Because
> of that, I would expect far far fewer sign extensions to be
> needed for your average SImode variable.
FWIW, the PA64 also has true 32bit compares.
Dave -- if you want me to do some poking at the PA64 port with your patch, let
me know.
jeff