3 commits

Author	SHA1	Message	Date
Eric Anholt	8e75de3164	ir_copy_propagation: Return true if we optimized out any assignments. ... This may trigger other optimization phases to make more progress themselves.	2010-05-05 09:32:44 -07:00
Eric Anholt	4e2c0b99d9	ir_copy_propagation: Handle swizzles and array derefs on LHS of assign. ... This improves the ACP to not get cleared when more complicated assignments occur, cleaning up more redundant copies in programs.	2010-05-05 09:27:50 -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