------- Comment #3 from ramana dot r at gmail dot com 2009-03-15 22:59 ------- (In reply to comment #2) > Trying to deal with this on the tree level will certainly be the wrong thing. > A > target dependent pass should instead try to re-materialize code to generate > constants from existing ones. >
I suspect it would be a cost based thing with costs from the target especially for such targets. It might also help in cases involving symbol references similar to the one in the patch proposed here. http://gcc.gnu.org/ml/gcc-patches/2009-03/msg00158.html This is still a CSE pass but this might help in a global context as well. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39468
