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From: "ebotcazou at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/50251] [4.7 Regression] Revision 178353 caused many test failures
Date: Sat, 03 Sep 2011 09:48:00 -0000 [thread overview]
Message-ID: <bug-50251-4-7yIuQYKpft@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-50251-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50251
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ebotcazou at gcc dot
| |gnu.org
--- Comment #17 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-09-03 09:47:08 UTC ---
> This patch sets need_drap when a stack_restore is present at expand, which
> allows both the 20010209-1.c and the stack-stave-restore.c testcase to succeed:
> ...
> Index: src/gcc-mainline/gcc/explow.c
> ===================================================================
> --- src/gcc-mainline/gcc/explow.c (revision 178379)
> +++ src/gcc-mainline/gcc/explow.c (working copy)
> @@ -1062,6 +1062,9 @@ emit_stack_restore (enum save_level save
> /* The default is that we use a move insn. */
> rtx (*fcn) (rtx, rtx) = gen_move_insn;
>
> + if (SUPPORTS_STACK_ALIGNMENT)
> + crtl->need_drap = true;
> +
> /* See if this machine has anything special to do for this kind of save. */
> switch (save_level)
> {
> ...
Does this force stack realignment, or only the use of the DRAP if we already do
stack realignment?
next prev parent reply other threads:[~2011-09-03 9:48 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-31 12:55 [Bug middle-end/50251] New: " hjl.tools at gmail dot com
2011-08-31 13:20 ` [Bug middle-end/50251] " rguenth at gcc dot gnu.org
2011-08-31 15:28 ` vries at gcc dot gnu.org
2011-09-01 12:43 ` vries at gcc dot gnu.org
2011-09-01 13:07 ` vries at gcc dot gnu.org
2011-09-01 13:26 ` vries at gcc dot gnu.org
2011-09-01 16:30 ` vries at gcc dot gnu.org
2011-09-01 18:04 ` hjl.tools at gmail dot com
2011-09-01 19:27 ` vries at gcc dot gnu.org
2011-09-01 19:33 ` hjl.tools at gmail dot com
2011-09-02 9:05 ` vries at gcc dot gnu.org
2011-09-02 9:25 ` vries at gcc dot gnu.org
2011-09-02 9:38 ` vries at gcc dot gnu.org
2011-09-02 9:42 ` rguenth at gcc dot gnu.org
2011-09-02 9:43 ` rguenth at gcc dot gnu.org
2011-09-02 10:30 ` vries at gcc dot gnu.org
2011-09-02 11:03 ` rguenth at gcc dot gnu.org
2011-09-02 22:48 ` vries at gcc dot gnu.org
2011-09-03 9:48 ` ebotcazou at gcc dot gnu.org [this message]
2011-09-03 12:40 ` vries at gcc dot gnu.org
2011-09-14 14:49 ` vries at gcc dot gnu.org
2011-09-14 14:54 ` vries at gcc dot gnu.org
2011-09-14 14:59 ` vries at gcc dot gnu.org
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