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From: "irar at il dot ibm dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/36630] [4.3/4.4 Regression] ICE in vect_update_ivs_after_vectorizer
Date: Thu, 26 Jun 2008 18:34:00 -0000	[thread overview]
Message-ID: <20080626183351.17707.qmail@sourceware.org> (raw)
In-Reply-To: <bug-36630-87@http.gcc.gnu.org/bugzilla/>



------- Comment #4 from irar at il dot ibm dot com  2008-06-26 18:33 -------
(In reply to comment #3)
> Can't you simply handle a NULL return
> from evolution_part_in_loop_num in the vectorizer?

The problem is that this happens during the transformation (for the code
created by the vectorizer). We assume that all the checks were done during the
analysis phase, and don't expect anything to go wrong during the
transformation. This is why there is an assert that the evolution is not NULL. 

But, anyway, shouldn't evolution_part_in_loop_num return a valid value for
(short int) {(short unsigned int) i_44, +, 1}_1?

Ira

> Richard.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36630


  parent reply	other threads:[~2008-06-26 18:34 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-06-25 12:48 [Bug tree-optimization/36630] New: " jakub at gcc dot gnu dot org
2008-06-25 12:48 ` [Bug tree-optimization/36630] " jakub at gcc dot gnu dot org
2008-06-25 14:28 ` rguenth at gcc dot gnu dot org
2008-06-26 11:58 ` irar at il dot ibm dot com
2008-06-26 12:12 ` rguenther at suse dot de
2008-06-26 18:34 ` irar at il dot ibm dot com [this message]
2008-07-10 14:19 ` rguenth at gcc dot gnu dot org
2008-07-16  6:20 ` irar at il dot ibm dot com
2008-07-18 16:53 ` rguenth at gcc dot gnu dot org
2008-08-27 22:13 ` jsm28 at gcc dot gnu dot org
2008-08-28 15:11 ` rguenth at gcc dot gnu dot org
2008-09-03 10:44 ` irar at il dot ibm dot com
2008-09-03 21:04 ` spop at gcc dot gnu dot org
2008-09-07  7:16 ` irar at gcc dot gnu dot org
2008-09-07 10:08 ` irar at gcc dot gnu dot org
2008-09-07 11:06 ` irar at il dot ibm dot com
2008-09-08  7:46 ` irar at il dot ibm dot com

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