* tree-flow-inline.h (may_propagate_copy): Move...
        * tree-ssa-copy.c (may_propagate_copy): ... here.  Fail if we
        attempt to copy between types requiring conversion.
        * tree-flow.h (may_propagate_copy): Update decl.
        * tree-ssa-dom.c (cprop_operand): Tidy redundant tests.

From-SVN: r84225