------- Comment #9 from bangerth at dealii dot org 2006-12-14 15:41 ------- Hm, now, with -DUNROLL, gcc realizes that it writes to data[] all the times with no reads and moves all the writes out of the loop. I suppose it's no surprise that the code is fast (the loop looks pretty atrocious, though, and is not collapsed to anything reasonable, though).
Of course, this is what should have happened with the original code as well. W. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30201
