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[Bug target/32180] Paranoia UCB GSL TestFloat libm tests fail - accuracy of recent gcc math poor
- From: "kargl at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 13 Jun 2007 17:52:54 -0000
- Subject: [Bug target/32180] Paranoia UCB GSL TestFloat libm tests fail - accuracy of recent gcc math poor
- References: <bug-32180-13830@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #18 from kargl at gcc dot gnu dot org 2007-06-13 17:52 -------
> The libm library is the least accurate and on average the fastest; though not
> fastest for every function instance. The most accurate is always CRLibm,
> sometimes it is fastest. The MPFR library is second most accurate and from 50
> to over 300 times slower than CRLibm.
You've shown nothing to validate that crlibm is more accurate than mpfr.
So how did you do this measurement?
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32180