http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57623
--- Comment #4 from sgunderson at bigfoot dot com --- On Sat, Jun 15, 2013 at 05:10:57PM +0000, jakub at gcc dot gnu.org wrote: > If both start and length are constants, then it will be folded by the > compiler, > similarly if you use it inside of loop and start/length will be loop > invariants, the computation can be hoisted out of the loop. Sure, but again, neither of these match my situation. I really need to do a lookup into a table (with a non-constant index) to get the value. /* Steinar */
