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[Bug tree-optimization/19097] [4.1/4.2/4.3 regression] Quadratic behavior with many sets for the same register in VRP
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 17 Sep 2007 13:11:03 -0000
- Subject: [Bug tree-optimization/19097] [4.1/4.2/4.3 regression] Quadratic behavior with many sets for the same register in VRP
- References: <bug-19097-7737@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #42 from rguenth at gcc dot gnu dot org 2007-09-17 13:11 -------
Still slow.
cfg cleanup : 7.10 (10%) usr 0.16 (10%) sys 7.26 (10%) wall
625 kB ( 1%) ggc
tree VRP : 27.40 (39%) usr 0.39 (23%) sys 27.91 (38%) wall
7602 kB (11%) ggc
CPROP 1 : 12.32 (17%) usr 0.26 (15%) sys 12.58 (17%) wall
1562 kB ( 2%) ggc
CPROP 2 : 8.79 (12%) usr 0.20 (12%) sys 9.03 (12%) wall
1406 kB ( 2%) ggc
bypass jumps : 8.73 (12%) usr 0.20 (12%) sys 8.96 (12%) wall
1406 kB ( 2%) ggc
TOTAL : 70.94 1.68 73.05
71071 kB
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
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Last reconfirmed|2005-10-31 17:12:20 |2007-09-17 13:11:02
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19097