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From: Ayal Zaks <ZAKS@il.ibm.com>
To: Richard Henderson <rth@redhat.com>
Cc: Canqun Yang <canqun@nudt.edu.cn>,
	gcc@gcc.gnu.org, Mostafa Hagog <MUSTAFA@il.ibm.com>
Subject: Re: SMS scheduling
Date: Mon, 04 Oct 2004 23:03:00 -0000	[thread overview]
Message-ID: <OFCFD5049E.1862E703-ONC2256F23.006690D2-C2256F23.00673C39@il.ibm.com> (raw)
In-Reply-To: <20041004163114.GA25290@redhat.com>


Richard Henderson <rth@redhat.com> wrote on 04/10/2004 18:31:14:

> On Mon, Oct 04, 2004 at 11:01:57AM +0200, Mostafa Hagog wrote:
> > And if they belong to the same alias sets (even when they have
> > different base objects) that means that the accesses that
> > belong to different iterations may alias, right ?
>
> No.  If they are for different base objects, they cannot alias,
> since it is illegal to iterate past the end of one object into
> another object.

The problem is probably with bases that are pointers, cf.
tree-data-ref.c/array_base_name_differ_p().

Ayal.

  reply	other threads:[~2004-10-04 22:32 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-09-28 12:57 Canqun Yang
2004-09-29 15:36 ` Mostafa Hagog
2004-09-30  8:50   ` Mostafa Hagog
2004-09-30  8:51     ` Richard Henderson
2004-09-30 10:57       ` Mostafa Hagog
2004-09-30 11:26         ` Richard Henderson
2004-09-30 11:29           ` Mostafa Hagog
2004-09-30 19:34             ` Richard Henderson
2004-10-03 17:59               ` Mostafa Hagog
2004-10-04  1:06                 ` Richard Henderson
2004-10-04 12:14                   ` Mostafa Hagog
2004-10-04 17:20                     ` Richard Henderson
2004-10-04 23:03                       ` Ayal Zaks [this message]
2004-10-02 12:25   ` Canqun Yang
2004-10-03 19:54     ` Mostafa Hagog
2004-10-09 17:55   ` Canqun Yang
2004-10-24 19:54     ` Mostafa Hagog

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