GCC beaten by ICC in stupid trig test!

[Robert Dewar]

Gabriel Dos Reis wrote:

> The C++ standard clearly says that re-association is permitted only if
> the re-associated expression gives the same result as the original.
> So A+B+C really is (A+B)+C.

In Ada, the rule is a little more liberal, the reassociation is allowed
if the result is in the same model interval. In practice though, either
criterion forbids the reassocation.