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Re: GCC beaten by ICC in stupid trig test!
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.