* tree-if-conv.c (find_phi_replacement_condition): Return true edge block.

        (replace_phi_with_cond_modify_expr): Select conditional expr args based on
        true edge basic block.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@87194 138bc75d-0d04-0410-961f-82ee72b054a4