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[Bug middle-end/19154] miss-optimization of (x & pow2C) avr conditionals returning bool equivalent values
- 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: 25 Dec 2004 20:53:25 -0000
- Subject: [Bug middle-end/19154] miss-optimization of (x & pow2C) avr conditionals returning bool equivalent values
- References: <20041225202132.19154.schlie@comcast.net>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-12-25 20:53 -------
I think the issue here is rtx_cost for avr sucks and does not give a good accurate cost matrix.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19154