def METHOD_NAME(self, expr: pyvex.IRExpr.Unop):
    if expr.op == "Iop_64to32" and isinstance(expr.args[0], pyvex.IRExpr.RdTmp):
        # special handling for t11 = GET:I64(rdi); t4 = 64to32(t11) style of code in x86-64 (and other 64-bit
        # architectures as well)
        tmp_src = expr.args[0].tmp
        if tmp_src in self.tmps_with_64bit_regs:
            self.tmps_converted_to_32bit.add(tmp_src)