------- Comment #23 from pinskia at gcc dot gnu dot org 2008-04-30 03:47 ------- (In reply to comment #21) > (In reply to comment #20) > > > Here are 2 alternatives I've been playing with: > > Any news on this patch?
The second patch looks like what is was done on the RTL level with respect of DSE. I am testing a patch to tree-ssa-forwprop that adds folding where the sizes of the types are the same to use VIEW_CONVERT_EXPR. This will allow us to do the correct thing on the tree level for comment #11. Note we don't convert it to a NOP_EXPR yet because it creates invalid gimple. It also allows us to "fixup" aliasing issues where the types are the same size so we will get less bug reports about those cases. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26069
