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[Bug tree-optimization/17863] [4.0 Regression] threefold performance loss, not inlining as much
- 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: 24 Feb 2005 17:09:50 -0000
- Subject: [Bug tree-optimization/17863] [4.0 Regression] threefold performance loss, not inlining as much
- References: <20041006153323.17863.kunert@physik.tu-dresden.de>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From rguenth at gcc dot gnu dot org 2005-02-24 17:09 -------
With __attribute__((leafify)) sticked to v4c_quad and mult_pq runtime goes down
from 16.0s to 4.4s with recent gcc 4.0. For gcc 3.4.3 runtimes are 5.0s and 4.9s.
We indeed do not very well on estimating the size of template metaprograms in 4.0.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17863