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[Bug rtl-optimization/20376] The missed-optimization of general induction variables in the new rtl-level loop optimizer cause performance degradation.
- From: "rakdver 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 Jun 2005 16:56:43 -0000
- Subject: [Bug rtl-optimization/20376] The missed-optimization of general induction variables in the new rtl-level loop optimizer cause performance degradation.
- References: <20050308024912.20376.canqun@nudt.edu.cn>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From rakdver at gcc dot gnu dot org 2005-06-24 16:56 -------
Actually, with -funroll-loops -fweb -frename-registers you get the code you
want.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20376