[LLVMdev] Help adding the Bullet physics sdk benchmark to the LLVM test suite?

Erwin Coumans erwin.coumans at gmail.com
Tue Jan 5 14:46:05 PST 2010

We haven't determined what 'failing' means or what the 'correct' behaviour

Imagine a ball at the top of a rounded hill. If the ball is not exactly at
the top but a tiny amount on the left it will roll left,
but a tiny amount on the right it will roll right. The difference in initial
position can be negligible but the final result is miles away.

Is there a irc channel or perhaps google wave for a quick chat? Or do people
prefer to keep all communication in the mailing list so everyone can

2010/1/5 David Greene <dag at cray.com>

> On Tuesday 05 January 2010 15:57, Dan Gohman wrote:
> > On Jan 5, 2010, at 1:38 PM, David Greene wrote:
> > > I don't think there's a flag that says "don't do anything risky,
> > > ever."
> >
> > "Don't do anything risky with floating-point" is the default mode. If
> > you're aware of any unsafe floating-point optimizations being done by
> > default, please file a bug.
> Ok.  It seems that something is causing a problem if Bullet is failing.
>                               -Dave
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