[Bug tree-optimization/54073] [4.7/4.8 Regression] SciMark Monte Carlo test performance has seriously decreased in recent GCC releases

[markus at trippelsdorf dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54073

--- Comment #6 from Markus Trippelsdorf <markus at trippelsdorf dot de> 
2012-07-26 16:13:33 UTC ---
(In reply to comment #5)
> is this same as http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53397

No. Monto Carlo is independent of FFT.
I can confirm the huge drop of the FFT score with -march=amdfam10.
(-flto doesn't help in this case.)