------- Comment #14 from dnovillo at gcc dot gnu dot org 2007-04-05 12:49 ------- (In reply to comment #11)
> So, why does SSA pass have to interfere with computation dataflow? This > interferece makes things worse and effectively takes away user's control on > the > flow of data. > Huh? How is it relevant whether PHIs are in different order? Conceptually, the ordering of PHI nodes in a basic block is completely irrelevant. Some pass is getting confused when it shouldn't. Transformations should not depend on how PHI nodes are emitted in a block as all PHI nodes are always evaluated in parallel. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19780
