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From: "giovannibajo at libero dot it" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/23361] Can't eliminate empty loops with power of two step and variable bounds
Date: Sat, 13 Aug 2005 10:01:00 -0000	[thread overview]
Message-ID: <20050813100145.3202.qmail@sourceware.org> (raw)
In-Reply-To: <20050812185248.23361.chris@bubblescope.net>


------- Additional Comments From giovannibajo at libero dot it  2005-08-13 10:01 -------
One thing is that if 'a' and 'b' are originally pointers of the same type, it 
should be clear the the loop can be removed. When they are lowered to integers, 
instead, we lose the precious alignment information. Can't the empty loop be 
removed before the pointers are lowered?
Or am I missing something?

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23361


  parent reply	other threads:[~2005-08-13 10:01 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-08-12 18:52 [Bug rtl-optimization/23361] New: " chris at bubblescope dot net
2005-08-12 18:57 ` [Bug tree-optimization/23361] " pinskia at gcc dot gnu dot org
2005-08-12 18:58 ` chris at bubblescope dot net
2005-08-12 19:10 ` pinskia at gcc dot gnu dot org
2005-08-12 23:43   ` Daniel Berlin
2005-08-12 23:43 ` dberlin at dberlin dot org
2005-08-13 10:01 ` giovannibajo at libero dot it [this message]
2005-09-15 13:46 ` bonzini at gcc dot gnu dot org
2005-09-15 14:02 ` chris at bubblescope dot net
     [not found] <bug-23361-9525@http.gcc.gnu.org/bugzilla/>
2005-11-09  3:09 ` pinskia at gcc dot gnu dot org
2007-02-05 18:53 ` pcarlini at suse dot de
2007-02-05 21:45 ` rakdver at gcc dot gnu dot org
2007-02-08 14:38 ` rakdver at gcc dot gnu dot org
2007-02-09 13:29 ` rguenth at gcc dot gnu dot org
2007-02-09 14:19 ` rguenth at gcc dot gnu dot org

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