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[Bug c++/17278] [4.0 Regression] 24% C++ compile-time regression in comparison with 3.4.1 at -O1 optimization level
- From: "steven at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 23 Dec 2004 11:30:55 -0000
- Subject: [Bug c++/17278] [4.0 Regression] 24% C++ compile-time regression in comparison with 3.4.1 at -O1 optimization level
- References: <20040902085559.17278.kgardas@objectsecurity.com>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From steven at gcc dot gnu dot org 2004-12-23 11:30 -------
It's interesting that -O1 is consistently slower than previous
releases. Perhaps we should turn off some of the more costly
tree passes at -O1, such as iterating in DOM, and the expensive
loop optimizations. Any thoughts on this?
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17278