[Bug rtl-optimization/49148] Certain expressions take an extremely long time for no apparent reason

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49148

--- Comment #6 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-05-25 
09:26:56 UTC ---
Try -ffast-math (the default for ICC) which disables subnormals.