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From: "ebotcazou at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/39625] [4.5 regression] Revision 145338 breaks ability to build Ada
Date: Thu, 16 Apr 2009 07:57:00 -0000	[thread overview]
Message-ID: <20090416075722.27489.qmail@sourceware.org> (raw)
In-Reply-To: <bug-39625-13830@http.gcc.gnu.org/bugzilla/>



------- Comment #29 from ebotcazou at gcc dot gnu dot org  2009-04-16 07:57 -------
Richard,

the removal of

  /* If the RHS of the MODIFY_EXPR may throw or make a nonlocal goto
     and the LHS is a user variable, then we need to introduce a formal
     temporary.  This way the optimizers can determine that the user
     variable is only modified if evaluation of the RHS does not throw.  */

from is_gimple_reg_or_call_rhs breaks __builtin_setjmp / __builtin_longjmp (and
probably nonlocal gotos).


-- 

ebotcazou at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rguenth at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39625


  parent reply	other threads:[~2009-04-16  7:57 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-03 14:44 [Bug ada/39625] New: Revision 145488 - Ada - Unable to coalesce ssa_names 96 and 455 which are marked as MUST COALESCE rob1weld at aol dot com
2009-04-04  1:59 ` [Bug ada/39625] " rob1weld at aol dot com
2009-04-04 17:26 ` rob1weld at aol dot com
2009-04-04 17:45 ` [Bug ada/39625] " ebotcazou at gcc dot gnu dot org
2009-04-05  0:49 ` rob1weld at aol dot com
2009-04-05  9:46 ` rob1weld at aol dot com
2009-04-05 17:08 ` rob1weld at aol dot com
2009-04-05 17:32 ` [Bug middle-end/39625] [4.5 regression] Revision 145338 breaks ability to build Ada rob1weld at aol dot com
2009-04-05 17:40 ` steven at gcc dot gnu dot org
2009-04-05 17:55 ` ebotcazou at gcc dot gnu dot org
2009-04-05 18:12 ` laurent at guerby dot net
2009-04-05 18:18 ` laurent at guerby dot net
2009-04-05 18:26 ` ebotcazou at gcc dot gnu dot org
2009-04-05 18:46 ` laurent at guerby dot net
2009-04-05 20:04 ` rob1weld at aol dot com
2009-04-05 20:10 ` rob1weld at aol dot com
2009-04-05 20:24 ` laurent at guerby dot net
2009-04-05 20:53 ` rob1weld at aol dot com
2009-04-05 21:43 ` ebotcazou at gcc dot gnu dot org
2009-04-05 22:18 ` rainer at emrich-ebersheim dot de
2009-04-07  4:00 ` rob1weld at aol dot com
2009-04-07  5:14 ` ebotcazou at gcc dot gnu dot org
2009-04-09  3:51 ` rob1weld at aol dot com
2009-04-09  6:37 ` charlet at gcc dot gnu dot org
2009-04-09  8:07 ` ebotcazou at gcc dot gnu dot org
2009-04-09 15:17 ` rob1weld at aol dot com
2009-04-09 15:41 ` charlet at gcc dot gnu dot org
2009-04-11  2:27 ` rob1weld at aol dot com
2009-04-16  7:34 ` ebotcazou at gcc dot gnu dot org
2009-04-16  7:57 ` ebotcazou at gcc dot gnu dot org [this message]
2009-04-16  8:06 ` rguenther at suse dot de
2009-04-16  8:33 ` ebotcazou at gcc dot gnu dot org
2009-04-16  8:45 ` rguenther at suse dot de
2009-04-16  8:58 ` rguenth at gcc dot gnu dot org
2009-04-16  8:59 ` rguenth at gcc dot gnu dot org
2009-04-16  9:13 ` ebotcazou at gcc dot gnu dot org
2009-04-16  9:22 ` rguenth at gcc dot gnu dot org
2009-04-16  9:37 ` [Bug middle-end/39625] [4.5 Regression] " rguenth at gcc dot gnu dot org
2009-04-16 10:45 ` rguenth at gcc dot gnu dot org
2009-04-16 10:45 ` rguenth at gcc dot gnu dot org
2009-04-17 23:33 ` rob1weld at aol dot com

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