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| From: | "Vladimir G. Ivanovic" <vgivanovic@×××××××.net> | ||
|---|---|---|---|
| To: | gentoo-amd64@l.g.o | ||
| Subject: | Re: [gentoo-amd64] gcc 4.1 + CFLAGS | ||
| Date: | Fri, 09 Jun 2006 11:24:26 | ||
| Message-Id: | 1149851981.13321.7.camel@scarlatti.leonora.org | ||
| In Reply to: | Re: [gentoo-amd64] gcc 4.1 + CFLAGS by "Michael Weyershäuser" |
||
| 1 | On Fri, 2006-06-09 at 07:47 +0200, Michael Weyershäuser wrote: |
| 2 | > I don't recommend -ffast-math on a global basis (or at all), it gets you |
| 3 | > right where the Pentium fdiv bug brought us some years ago: floating |
| 4 | > point operations will be faster, but they could get a wrong result in |
| 5 | > some occasions... |
| 6 | |
| 7 | Linus seems to use -ffast-math: |
| 8 | http://gcc.gnu.org/ml/gcc/2001-07/msg02150.html. At least in 2001 he |
| 9 | did. |
| 10 | |
| 11 | --- Vladimir |
| 12 | |
| 13 | |
| 14 | -- |
| 15 | gentoo-amd64@g.o mailing list |
| Subject | Author |
|---|---|
| Re: [gentoo-amd64] gcc 4.1 + CFLAGS | "Michael Weyershäuser" <thedude0001@×××.de> |
| Re: [gentoo-amd64] gcc 4.1 + CFLAGS | Ian McCulloch <ianmcc@××××××××××××××××××.de> |