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[Bug tree-optimization/19876] [4.0 Regression] g++ starts eating all the memory and the CPU
- 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: 10 Feb 2005 19:04:06 -0000
- Subject: [Bug tree-optimization/19876] [4.0 Regression] g++ starts eating all the memory and the CPU
- References: <20050210180239.19876.pied@fnux.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-02-10 19:04 -------
Reverting the following patch fixes the bug:
2005-01-14 Steven Bosscher <stevenb@suse.de>
* tree-ssa-dce.c (visited_control_parents): New sbitmap to
replace BB_VISITED uses.
(find_obviously_necessary_stmts): Don't clear BB_VISITED.
(propagate_necessity): Check the bitmap instead of BB_VISITED.
(tree_dce_done): Free visited_control_parents.
(perform_tree_ssa_dce): Allocate and clear it.
* tree-ssa-pre.c (compute_antic_aux): Make non-recursive.
(compute_antic): Iterate from here using a DFS. Use an sbitmap
instead of BB_VISITED.
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |steven at gcc dot gnu dot
| |org
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2005-02-10 19:04:05
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19876