------- Comment #13 from rakdver at gcc dot gnu dot org 2006-07-17 11:54 ------- (In reply to comment #12) > The test case in comment #11 looks like a classic store motion opportunity to > me. GCC 3.3 performs the store motion, GCC 4.2 r115467 does not. > > Zdenek, I thought tree-ssa-lim should be able to do store motion in loops?
Yes, however again, the alias analysis does not tell it that a[0] does not alias a[1]; once that is fixed, tree-ssa-lim should work just fine. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20643
