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In-Reply-To: <20040930075728.GA6528@redhat.com>
Subject: Re: SMS scheduling
To: Richard Henderson <rth@redhat.com>
Cc: Canqun Yang <canqun@nudt.edu.cn>, gcc@gcc.gnu.org
Message-ID: <OF9EEE4272.6B88B1D9-ONC2256F1F.002C0549-C2256F1F.002C4704@il.ibm.com>
From: Mostafa Hagog <MUSTAFA@il.ibm.com>
Date: Thu, 30 Sep 2004 10:57:00 -0000
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Richard Henderson <rth@redhat.com> wrote on 30/09/2004 09:57:28:

> On Thu, Sep 30, 2004 at 08:58:20AM +0200, Mostafa Hagog wrote:
> > 2. Use of alias sets to remove memory dependencies.
>
> Err, how are you detecting memory dependencies now?
> Aren't you using the alias.c routines?

For 4.0 SMS intra-loop memory dependencies are detected using
the alias.c (as in haifa-sched) for inter-loop memory dependencies
we are very conservative and assume that all memory accesses are
aliased.

Mostafa.