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[Bug tree-optimization/18687] [4.0 Regression] ~50% compile time regression
- 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: 30 Nov 2004 14:32:52 -0000
- Subject: [Bug tree-optimization/18687] [4.0 Regression] ~50% compile time regression
- References: <20041127043006.18687.belyshev@lubercy.com>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-11-30 14:32 -------
At -O2 and -O3 also I see is_attribute_p is always taking 2% of the time.
At -O0:
- is_attribute_p - 6%
- decode_reg_name - 2.1%
at -O1:
- is_attribute_p - 2.5%
- decode_reg_name 0.8%
at -O2:
- is_attribute_p - 1.9%
- decode_reg_name - 0.5%
at -O3 (this was a bigger sample than the obove ones):
- is_attribute_p - 1.8%
- decode_reg_name - 0.6%
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18687