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From: Jakub Jelinek <jakub@redhat.com>
To: Richard Biener <rguenther@suse.de>
Cc: Bernd Edlinger <bernd.edlinger@hotmail.de>,
	       Jonathan Wakely <jwakely@redhat.com>,
	       Florian Weimer <fweimer@redhat.com>,
	       GCC Patches <gcc-patches@gcc.gnu.org>,
	       Jason Merrill <jason@redhat.com>,
	Jeff Law <law@redhat.com>
Subject: Re: [PATCH] Add a new type attribute always_alias (PR79671)
Date: Thu, 06 Apr 2017 07:51:00 -0000	[thread overview]
Message-ID: <20170406075104.GA17461@tucnak> (raw)
In-Reply-To: <alpine.LSU.2.20.1704060925130.30715@zhemvz.fhfr.qr>

On Thu, Apr 06, 2017 at 09:47:10AM +0200, Richard Biener wrote:
> @@ -955,6 +960,7 @@ get_alias_set (tree t)
>       Just be pragmatic here and make sure the array and its element
>       type get the same alias set assigned.  */
>    else if (TREE_CODE (t) == ARRAY_TYPE
> +	   && ! TYPE_TYPELESS_STORAGE (t)
>  	   && (!TYPE_NONALIASED_COMPONENT (t)
>  	       || TYPE_STRUCTURAL_EQUALITY_P (t)))
>      set = get_alias_set (TREE_TYPE (t));
> @@ -1094,6 +1100,15 @@ get_alias_set (tree t)
>  
>    TYPE_ALIAS_SET (t) = set;
>  
> +  if (TREE_CODE (t) == ARRAY_TYPE
> +      && TYPE_TYPELESS_STORAGE (t))

Shouldn't TYPE_TYPELESS_STORAGE apply even for non-array types?
If somebody chooses to store anything in long long
__attribute__((typeless_storage)), so be it.  Or what kind of complications
do you see for that?

	Jakub

  reply	other threads:[~2017-04-06  7:51 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-05  9:46 Bernd Edlinger
2017-04-05 13:28 ` Jakub Jelinek
2017-04-05 15:20   ` Richard Biener
2017-04-05 17:41     ` Bernd Edlinger
2017-04-05 20:18       ` Jason Merrill
2017-04-05 20:46         ` Bernd Edlinger
2017-04-05 22:54           ` Pedro Alves
2017-04-06 10:08           ` Jonathan Wakely
2017-04-06  7:23         ` Richard Biener
2017-04-05 15:27   ` Bernd Edlinger
2017-04-05 15:29     ` Jakub Jelinek
2017-04-05 14:50 ` Florian Weimer
2017-04-05 15:23   ` Richard Biener
2017-04-05 15:38     ` Bernd Edlinger
2017-04-05 16:03       ` Jonathan Wakely
2017-04-05 16:08         ` Jakub Jelinek
2017-04-05 17:23           ` Bernd Edlinger
2017-04-05 21:02             ` Bernd Edlinger
2017-04-05 23:17               ` Sandra Loosemore
2017-04-06  5:40                 ` Jakub Jelinek
2017-04-06  7:47               ` Richard Biener
2017-04-06  7:51                 ` Jakub Jelinek [this message]
2017-04-06  7:55                   ` Richard Biener
2017-04-06 14:11                     ` Bernd Edlinger
2017-04-06 14:17                       ` Florian Weimer
2017-04-06 14:23                         ` Richard Biener
2017-04-06 14:43                           ` Jonathan Wakely
2017-04-06 14:51                             ` Florian Weimer
2017-04-06 15:05                               ` Jakub Jelinek
2017-04-06 15:10                                 ` Florian Weimer
2017-04-06 19:13                               ` Richard Biener
2017-04-11 10:43                                 ` Florian Weimer
2017-04-11 10:48                                   ` Richard Biener
2017-04-06 17:39                         ` Bernd Edlinger
2017-04-06 17:48                           ` Florian Weimer
2017-04-06 18:12                             ` Bernd Edlinger
2017-04-06 18:19                               ` Florian Weimer
2017-04-06 18:49                                 ` Bernd Edlinger
2017-04-06 19:05                                   ` Florian Weimer
2017-04-06 19:20                                     ` Bernd Edlinger
2017-04-07  6:47                                       ` Richard Biener
2017-04-07 12:58                                         ` Bernd Edlinger
2017-04-06 19:16                               ` Richard Biener
2017-04-07  6:56                                 ` Florian Weimer
2017-04-07  8:01                                   ` Richard Biener
2017-04-06 19:14                           ` Richard Biener
2017-04-06 19:51                             ` Bernd Edlinger
2017-04-06 14:22                       ` Richard Biener
2017-04-06 21:00                 ` Bernd Edlinger
2017-04-07  6:54                   ` Richard Biener
2017-04-07 13:37                     ` Bernd Edlinger
2017-04-07 15:10                       ` Richard Biener
2017-04-07 15:33                         ` Bernd Edlinger
2017-04-07 20:22                           ` Jason Merrill
2017-04-10 12:50                             ` Richard Biener
2017-04-10 14:41                               ` Jason Merrill
2017-04-10 15:31                                 ` Richard Biener
2017-04-10 16:35                                   ` Jason Merrill
2017-04-11 10:32                                     ` Richard Biener
2017-04-11 11:53                                       ` Richard Biener
2017-04-11 13:35                                         ` Richard Biener
2017-04-11 18:47                                           ` Jason Merrill
2017-04-10 21:40                               ` Pedro Alves
2017-04-11  7:37                                 ` Richard Biener
2017-04-06 20:20               ` Bernd Edlinger

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