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[Bug tree-optimization/17863] [4.0/4.1/4.2 Regression] threefold performance loss, not inlining as much
- From: "phython at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 24 Nov 2005 17:34:12 -0000
- Subject: [Bug tree-optimization/17863] [4.0/4.1/4.2 Regression] threefold performance loss, not inlining as much
- References: <bug-17863-2109@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #30 from phython at gcc dot gnu dot org 2005-11-24 17:34 -------
On powerpc-linux, I get the following timings:
Using the following command line:
g++ -O3 -o t41 -mcpu=7450 -mtune=7450 pr17863.cc -static
real user
3.4 0m11.761s 0m11.148s
4.0 0m10.196s 0m9.495s
4.1 0m17.824s 0m16.832s
4.1 0m11.547s 0m10.502s -- With attribute flatten
--
phython at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2004-12-24 20:36:17 |2005-11-24 17:34:11
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17863