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[Bug tree-optimization/23838] infinite loop in dse
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 12 Sep 2005 19:46:03 -0000
- Subject: [Bug tree-optimization/23838] infinite loop in dse
- References: <20050912192904.23838.belyshev@depni.sinp.msu.ru>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-09-12 19:45 -------
Confirmed.
The loop below:
/* Skip through any PHI nodes we have already seen if the PHI
represents the only use of this store.
Note this does not handle the case where the store has
multiple V_{MAY,MUST}_DEFs which all reach a set of PHI nodes in the
same block. */
Is causing the issue.
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |law at gcc dot gnu dot org
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2005-09-12 19:46:00
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23838