Hi, On Monday 21 March 2011 15:23:02 Matthias Kretz wrote: > I tested the GCC 4.6.0 RC on Intel systems with good success so far. Now I > tested on an AMD Magny-Cours using the -march=barcelona flag and gcc > translated _mm_store_pd/s calls in the code to streaming stores in the > resulting binary. > > Where does this "optimization" come from and how can I disable it? This > doesn't make much sense on a working set that fits into the cache... > > Is this intended behavior or a bug? Additional info: If I add -fno-prefetch-loop-arrays I get normal stores as expected. I don't consider this a solution, though. Regards, Matthias -- Dipl.-Phys. Matthias Kretz http://compeng.uni-frankfurt.de/?mkretz
