GCC beaten by ICC in stupid trig test!

[Paolo Carlini]

Joseph S. Myers wrote:

>You need to allow for the possibility of doit trapping, but moving it
>should still be OK in this case by virtue of C99 F.8.1#3: you don't need
>to keep the same number of traps as implied by the source code.
>  
>
Ah! Today I'm learning *too* much, thanks to everyone!

Now, I have another question: when -ffast-math is passed, should we even 
collapse
the loop to a single integer to be multiplied by the return value of doit?

Currently, on the gcc-lno branch we don't do that... or we don't *want* 
to do that? ;)

Naively, seems something really tricky to attempt because the sum 
involving the loop
index i may overflow in the process.

Paolo.