http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53593
--- Comment #2 from atcl <litro at graasmilk dot net> 2012-06-07 08:55:11 UTC --- (In reply to comment #1) > This pragma is a control for the equivalent of the option > -fprefetch-loop-arrays . > > You might want to try out -fprefetch-loop-arrays out. Well, but what about nested loops, or multiple loop indices or multiple arrays? The prefetch and noprefetch pragma would give you a better degree of control in my opinion. I would require these pragmas for very special situation, where I feel I do know better than the compiler.
