GCC beaten by ICC in stupid trig test!

[Bradley Lucier]

Re:

> On Tue, Mar 23, 2004 at 10:32:13PM -0500, Robert Dewar wrote:
> > For example, if -ffast-math is so sloppy as to consider
> > that (a+b)+c can be replaced by a+(b+c), then all bets are off.
>
> That's why -ffast-math doesn't do that; such a transformation would be
> massively brain-damaged.

Well, -ffast-math (or more specifically, -funsafe-math-optimizations) 
is about to do this, at least in some cases on tree-ssa, see

http://gcc.gnu.org/ml/gcc-patches/2004-03/msg01891.html

If you think that this transformation shouldn't be done, then I guess 
now is the time to speak up.

Brad