[Bug target/38306] [4.4/4.5/4.6/4.7 Regression] 15% slowdown w.r.t. 4.3 of computational kernel on some architectures

[Joost.VandeVondele at pci dot uzh.ch]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38306

--- Comment #27 from Joost VandeVondele <Joost.VandeVondele at pci dot uzh.ch> 
2011-09-13 07:59:06 UTC ---
(In reply to comment #25)
> 2) Then find the earliest optimization pass where they differ (you may even 
> use
> diff to make this faster).

The first point where things differ for PD2VAL is 

pr38306_xxx.f90.057t.cunrolli

afterwards, everything seems fully different.