2 commits

Author	SHA1	Message	Date
Eric Anholt	dc1dbd65e1	ir_visit_tree: Make sure we visit dereference targets, too. ... Found this with the local dead code pass, which never saw variable dereferences occurring.	2010-05-05 11:08:18 -07:00
Eric Anholt	5c89f0ecb9	ir_copy_propagation: New pass to rewrite dereferences to avoid copies. ... This is pretty basic. Right now it only handles pure assignments -- same type on each side, no swizzling, and only within basic blocks.	2010-05-04 17:00:42 -07:00