------- Comment #4 from dominiq at lps dot ens dot fr 2010-02-25 15:23 ------- At revision 156693 or higher, the miscompilation with -floop-interchange reported in comment #3 is gone. As a consequence the corresponding execution time is now the same as when compiled with -fgraphite-identity.
The timings wit/without the options correspond to a missed vectorization of the critical loops. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40979
