> But when I set the alignment of the loop in main to 8, it got > slightly faster: > > $ time ./t.new > > real 0m15.090s > user 0m15.079s > sys 0m0.010s > > So there's some type of alignment thing that's getting in the way, but > it's encouraging for an initial pass that moved 3 instructions total. > :-)
Ah right, to get stable performance and measure just the instruction change, you should align the loop top to 16 for each (just for measurment purposes) -chris _______________________________________________ llvm-commits mailing list llvm-commits@cs.uiuc.edu http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
