This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: Ada and TBAA and arrays vs. VIEW_CONVERT_EXPRs

From: kenner at vlsi1 dot ultra dot nyu dot edu (Richard Kenner)
To: ebotcazou at adacore dot com
Cc: gcc-patches at gcc dot gnu dot org, rguenther at suse dot de
Date: Mon, 09 Feb 2009 07:13:46 EST
Subject: Re: Ada and TBAA and arrays vs. VIEW_CONVERT_EXPRs
References: <alpine.LNX.2.00.0902081520140.11836@zhemvz.fhfr.qr> <200902091240.29046.ebotcazou@adacore.com> <10902091153.AA07220@vlsi1.ultra.nyu.edu> <200902091301.40368.ebotcazou@adacore.com>

> The alias set of the array type is equal to that of its component, i.e. the 
> first call to get_alias_set on an array without TYPE_NONALIASED_COMPONENT 
> sets the alias set of the component on this array.  See Richard's patch for 
> the rationale (Fortran quirks apparently).

Sorry, I misstated something on my last email.  If Fortran needs the
alias set of an array to be that of its element, it shouldn't set 
TYPE_NONALIASED_COMPONENT, but should manually set the alias set of the
array.  There's no reason to pessimize other languages.

Follow-Ups:
- Re: Ada and TBAA and arrays vs. VIEW_CONVERT_EXPRs
  - From: Richard Guenther

References:
- Ada and TBAA and arrays vs. VIEW_CONVERT_EXPRs
  - From: Richard Guenther
- Re: Ada and TBAA and arrays vs. VIEW_CONVERT_EXPRs
  - From: Eric Botcazou
- Re: Ada and TBAA and arrays vs. VIEW_CONVERT_EXPRs
  - From: Richard Kenner
- Re: Ada and TBAA and arrays vs. VIEW_CONVERT_EXPRs
  - From: Eric Botcazou

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]