+;;; value-cells
+
+(defun-with-dx dx-value-cell (x)
+ ;; Not implemented everywhere, yet.
+ #+(or x86 x86-64)
+ (let ((cell x))
+ (declare (dynamic-extent cell))
+ (flet ((f ()
+ (incf cell)))
+ (declare (dynamic-extent #'f))
+ (true #'f))))
+
+;;; with-spinlock should use DX and not cons
+
+(defvar *slock* (sb-thread::make-spinlock :name "slocklock"))
+
+(defun test-spinlock ()
+ (sb-thread::with-spinlock (*slock*)
+ (true *slock*)))
+
+;;; not really DX, but GETHASH and (SETF GETHASH) should not cons
+
+(defvar *table* (make-hash-table))
+
+(defun test-hash-table ()
+ (setf (gethash 5 *table*) 13)
+ (gethash 5 *table*))