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From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/44194] struct returned by value generates useless stores
Date: Sat, 10 Jul 2010 01:42:00 -0000	[thread overview]
Message-ID: <20100710014222.24170.qmail@sourceware.org> (raw)
In-Reply-To: <bug-44194-19201@http.gcc.gnu.org/bugzilla/>



------- Comment #6 from pinskia at gcc dot gnu dot org  2010-07-10 01:42 -------
>In 64-bit mode there is no store, but it *does* allocate 8 bytes of stack that
it never uses:

Oh no that is called aligning the stack to be 16 byte aligned.

>It also
seems to overallocate the stack (28 bytes allocated, only 4 used):

No, it is not over allocating the stack really, it does align it be to 16 byte
aligned though. 


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44194


  parent reply	other threads:[~2010-07-10  1:42 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-19  5:06 [Bug rtl-optimization/44194] New: " jhaberman at gmail dot com
2010-05-19  9:39 ` [Bug rtl-optimization/44194] " rguenth at gcc dot gnu dot org
2010-05-19 10:14 ` jakub at gcc dot gnu dot org
2010-05-19 10:22 ` rguenth at gcc dot gnu dot org
2010-07-10  1:38 ` jhaberman at gmail dot com
2010-07-10  1:40 ` pinskia at gcc dot gnu dot org
2010-07-10  1:42 ` pinskia at gcc dot gnu dot org [this message]
2010-07-10  1:48 ` jhaberman at gmail dot com
     [not found] <bug-44194-4@http.gcc.gnu.org/bugzilla/>
2011-02-24  5:10 ` jhaberman at gmail dot com
2011-04-12 22:39 ` eraman at google dot com
2011-04-14 18:59 ` eraman at google dot com
2011-04-14 22:22 ` ebotcazou at gcc dot gnu.org
2011-04-15  9:10 ` rguenth at gcc dot gnu.org
2011-04-15 19:19 ` eraman at google dot com
2011-04-15 19:34 ` rguenther at suse dot de
2011-04-15 22:27 ` eraman at google dot com
2011-04-17 10:47 ` rguenther at suse dot de
2011-04-21  0:22 ` eraman at google dot com
2011-04-21  8:37 ` rguenther at suse dot de
2011-06-14 22:59 ` eraman at gcc dot gnu.org
2011-06-15 16:50 ` ebotcazou at gcc dot gnu.org
2011-06-15 20:35 ` eraman at google dot com
2011-06-15 21:11 ` ebotcazou at gcc dot gnu.org
2011-06-15 23:17 ` xinliangli at gmail dot com
2011-06-16  5:27 ` ebotcazou at gcc dot gnu.org
2011-06-16  7:43 ` xinliangli at gmail dot com
2011-06-16  8:37 ` rguenther at suse dot de
2011-06-16 17:16 ` eraman at google dot com
2011-06-17  8:22 ` rguenther at suse dot de
2011-06-18  9:06 ` xinliangli at gmail dot com
2011-06-18  9:29 ` ebotcazou at gcc dot gnu.org
2011-06-18 16:34 ` xinliangli at gmail dot com
2011-06-20  9:22 ` rguenther at suse dot de
2011-06-20 15:28 ` ebotcazou at gcc dot gnu.org
2011-06-20 16:27 ` xinliangli at gmail dot com
2011-06-20 16:52 ` eraman at google dot com
2011-06-22  7:58 ` ebotcazou at gcc dot gnu.org
2011-07-07 14:58 ` ebotcazou at gcc dot gnu.org
2011-12-05 17:49 ` ebotcazou at gcc dot gnu.org
2012-03-22  9:10 ` rguenth at gcc dot gnu.org
2012-03-22 17:13 ` ubizjak at gmail dot com
2012-03-22 18:35 ` ebotcazou at gcc dot gnu.org
2012-07-02 14:04 ` rguenth at gcc dot gnu.org
2012-08-06  1:23 ` chip at pobox dot com
2012-09-12 22:31 ` ebotcazou at gcc dot gnu.org
2012-09-12 23:22 ` chip at pobox dot com
2012-09-13  0:00 ` ebotcazou at gcc dot gnu.org
2012-09-14 13:30 ` ebotcazou at gcc dot gnu.org
2012-09-14 13:38 ` ebotcazou at gcc dot gnu.org
2012-09-14 17:24 ` chip at pobox dot com
2012-10-21 12:36 ` ebotcazou at gcc dot gnu.org
2012-11-02  0:29 ` eraman at gcc dot gnu.org

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