[Bug ipa/64668] internal compiler error: in compare_ssa_name, at ipa-icf-gimple.c:120

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64668

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
    /* Virtual table call.  */
    case OBJ_TYPE_REF:
      {
        x1 = TREE_OPERAND (t1, 0);
        x2 = TREE_OPERAND (t2, 0);
        y1 = TREE_OPERAND (t1, 1);
        y2 = TREE_OPERAND (t2, 1);
        z1 = TREE_OPERAND (t1, 2);
        z2 = TREE_OPERAND (t2, 2);

        ret = compare_ssa_name (x1, x2)
              && compare_ssa_name (y1, y2)
              && compare_cst_or_decl (z1, z2);

I think neither op0 nor op1 needs to be a SSA name, both might be &x for
example.