------- Comment #2 from hubicka at gcc dot gnu dot org 2009-03-05 02:04 ------- I specifically kept the code propagating TREE_READONLY arguments so const arguments will get constant propagated at -O0. But I see the propagation is disabled for SSA registers. I am testing patch for this... I guess we need only constant propagation and not copy propagation, right?
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39361