// byte to record active defers.
			// Also don't allow if we need to use deferprocat.
			ir.CurFunc.SetOpenCodedDeferDisallowed(true)
		}
		if n.Esc() != ir.EscNever {
			// If n.Esc is not EscNever, then this defer occurs in a loop,
			// so open-coded defers cannot be used in this function.
			ir.CurFunc.SetOpenCodedDeferDisallowed(true)
		}
		fallthrough
	case ir.OGO:
		n := n.(*ir.GoDeferStmt)
		return walkGoDefer(n)