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Re: [PATCH][LTO] Stream zeroness of alias-sets

From: Diego Novillo <dnovillo at google dot com>
To: Richard Henderson <rth at redhat dot com>
Cc: Richard Guenther <rguenther at suse dot de>, gcc-patches at gcc dot gnu dot org
Date: Thu, 6 Aug 2009 17:44:23 -0400
Subject: Re: [PATCH][LTO] Stream zeroness of alias-sets
References: <alpine.LNX.2.00.0908061747030.16347@zhemvz.fhfr.qr> <4A7B3483.4000907@redhat.com> <b798aad50908061357r52a7de1foae2ab743b459e700@mail.gmail.com> <4A7B4C69.9000306@redhat.com>

On Thu, Aug 6, 2009 at 17:34, Richard Henderson<rth@redhat.com> wrote:
> On 08/06/2009 01:57 PM, Diego Novillo wrote:
>>
>> I don't think there's a good reason why we should distinguish
>> TYPE_REF_CAN_ALIAS_ALL from alias_set == 0. ÂIs there?
>
> TYPE_REF_CAN_ALIAS_ALL is on the pointer type, whereas
> alias_set 0 (or the may_alias attr) is on the base type?

But may_alias *sets* TYPE_REF_CAN_ALIAS_ALL.  Ah, but it does it to
the pointed-to type.  Wonky, but OK.


Diego.

Follow-Ups:
- Re: [PATCH][LTO] Stream zeroness of alias-sets
  - From: Richard Henderson
- Re: [PATCH][LTO] Stream zeroness of alias-sets
  - From: Richard Guenther

References:
- [PATCH][LTO] Stream zeroness of alias-sets
  - From: Richard Guenther
- Re: [PATCH][LTO] Stream zeroness of alias-sets
  - From: Richard Henderson
- Re: [PATCH][LTO] Stream zeroness of alias-sets
  - From: Diego Novillo
- Re: [PATCH][LTO] Stream zeroness of alias-sets
  - From: Richard Henderson

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