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[Bug tree-optimization/15524] [4.0 Regression] jump threading on trees is slow with switch statements with large # of cases
- 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: 4 Dec 2004 15:35:26 -0000
- Subject: [Bug tree-optimization/15524] [4.0 Regression] jump threading on trees is slow with switch statements with large # of cases
- References: <20040518194300.15524.pinskia@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-12-04 15:35 -------
Here are the new numbers.
option mainline 3.3.2
-O0 2.790 2.680
-O1 12.51 11.44
-O2 18.26 19.84
-O3 18.64 19.53
So we are faster or just as fast except for at -O2 where we are 9% slower. We are no where near the
numbers we were at before.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15524