[Bug c/47617] SSE rounding mode works -g, not -O3

[cck0011 at yahoo dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47617

--- Comment #2 from cck0011 at yahoo dot com 2011-02-06 16:25:55 UTC ---
(In reply to comment #1)
> I think you need to use -frounding-math.  GCC assumes by default the rounding
> mode is round-to-nearest.  See
> http://gcc.gnu.org/onlinedocs/gcc-4.5.2/gcc/Optimize-Options.html#index-frounding_002dmath-819
> .

Hi Andrew, 

  thanks for writing. I tried -frounding-math and the result is still the same.
Adding/removing -mfpmath=sse doesn't change it either. Is there any additional
information I can provide?

Thanks!