[Bug c++/54000] Performance breakdown for gcc-4.{6,7} vs. gcc-4.5 using std::vector in matrix vector multiplication

[benedict.geihe at ins dot uni-bonn.de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54000

--- Comment #1 from Benedict Geihe <benedict.geihe at ins dot uni-bonn.de> 
2012-07-17 16:01:08 UTC ---
Created attachment 27816
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27816
preprocessed minimal example