return true
		}

	// Only possible side effect is panic on invalid size.
	// TODO(rsc): Merge with previous case (probably breaks toolstash -cmp).
	case ir.OMAKESLICE, ir.OMAKESLICECOPY:
		return true
	}
	return false
}

// AnySideEffects reports whether n contains any operations that could have observable side effects.
func AnySideEffects(n ir.Node) bool {

		return walkMakeChan(n, init)

	case ir.OMAKEMAP:
		n := n.(*ir.MakeExpr)
		return walkMakeMap(n, init)

	case ir.OMAKESLICE:
		n := n.(*ir.MakeExpr)
		return walkMakeSlice(n, init)

	case ir.OMAKESLICECOPY:
		n := n.(*ir.MakeExpr)
		return walkMakeSliceCopy(n, init)

	case ir.ORUNESTR:
		n := n.(*ir.ConvExpr)
		return walkRuneToString(n, init)

	case ir.OBYTES2STR, ir.ORUNES2STR: