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[Bug tree-optimization/15678] [4.0 Regression] Compilation time increased by 10-20%
- From: "belyshev at lubercy dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 17 Dec 2004 17:57:17 -0000
- Subject: [Bug tree-optimization/15678] [4.0 Regression] Compilation time increased by 10-20%
- References: <20040527100445.15678.gertom@inf.u-szeged.hu>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From belyshev at lubercy dot com 2004-12-17 17:57 -------
3.4.4 4.0.0 (*A) 4.0.0 (*B) deltaA deltaB
time to compile one empty function, ms:
cc1-O0 0.4334 0.5908 0.5836 36% 35%
cc1plus-O0 0.6155 0.4700 0.4613 -24% -25%
cc1-O2 0.8090 1.3886 1.3090 71% 62%
cc1plus-O2 0.9213 1.4436 1.3767 57% 49%
startup time, i.e. time to "compile" empty file, ms:
cc1-O0 18.3 18.1 17.4 -1% -5%
cc1plus-O0 22.2 21.0 20.4 -5% -8%
cc1-O2 20.4 19.3 19.1 -5% -6%
cc1plus-O2 23.7 22.3 21.7 -6% -8%
*A -- gcc 4.0.0 20041217 compiled by gcc 3.4.4 20041217
*B -- gcc 4.0.0 20041217 compiled by itself.
All errors are within 0.05 .. 0.5 %
--
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2004-11-16 21:59:16 |2004-12-17 17:57:14
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15678