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[Bug optimization/8126] [3.3/3.4 regression] Floating point computation far slower in 3.2 than in 2.95
- From: "o dot lauffenburger at topsolid dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 24 Jun 2003 12:35:42 -0000
- Subject: [Bug optimization/8126] [3.3/3.4 regression] Floating point computation far slower in 3.2 than in 2.95
- References: <20021002075601.8126.o.lauffenburger@topsolid.com>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8126
------- Additional Comments From o dot lauffenburger at topsolid dot com 2003-06-24 12:35 -------
I have tested the -fnew-ra option with version 3.3 and the other options (-O3 -
ffast-math -fomit-frame-pointer).
Without -fnew-ra : 4746 ms
With -fnew-ra : 9063 ms
(With gcc 2.95 : 2914 ms)
So it is apparently worse with the option -fnew-ra.