* cse.c (cse_insn): If an insn has only a single set, SRC_EQV

        is nonzero and the single set does not have an elt, then assign
        it an elt.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@30304 138bc75d-0d04-0410-961f-82ee72b054a4