1.0.12: release, will be tagged as sbcl_1_0_12

[sbcl.git] / tests / dynamic-extent.impure.lisp

diff --git a/tests/dynamic-extent.impure.lisp b/tests/dynamic-extent.impure.lisp
index 6844273..d22342d 100644 (file)
--- a/tests/dynamic-extent.impure.lisp
+++ b/tests/dynamic-extent.impure.lisp
@@ -6,11 +6,14 @@
 ;;;; While most of SBCL is derived from the CMU CL system, the test
 ;;;; files (like this one) were written from scratch after the fork
 ;;;; from CMU CL.
-;;;; 
+;;;;
 ;;;; This software is in the public domain and is provided with
 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
 ;;;; more information.
 
+(when (eq sb-ext:*evaluator-mode* :interpret)
+  (sb-ext:quit :unix-status 104))
+
 (setq sb-c::*check-consistency* t)
 
 (defmacro defun-with-dx (name arglist &body body)
@@ -108,11 +111,102 @@
     (assert (equal (multiple-value-list (test-alignment-dx-list form)) res))
     (assert (equal *x* '(1 2 3 4)))))
 
+;;; closure
+
+(declaim (notinline true))
+(defun true (x)
+  (declare (ignore x))
+  t)
+
+(defun-with-dx dxclosure (x)
+  (flet ((f (y)
+           (+ y x)))
+    (declare (dynamic-extent #'f))
+    (true #'f)))
+
+(assert (eq t (dxclosure 13)))
+
+;;; value-cells
+
+(defun-with-dx dx-value-cell (x)
+  ;; Not implemented everywhere, yet.
+  #+(or x86 x86-64 mips)
+  (let ((cell x))
+    (declare (dynamic-extent cell))
+    (flet ((f ()
+             (incf cell)))
+      (declare (dynamic-extent #'f))
+      (true #'f))))
+
+;;; CONS
+
+(defun-with-dx cons-on-stack (x)
+  (let ((cons (cons x x)))
+    (declare (dynamic-extent cons))
+    (true cons)
+    nil))
+
+;;; Nested DX
+
+(defun-with-dx nested-dx-lists ()
+  (let ((dx (list (list 1 2) (list 3 4))))
+    (declare (dynamic-extent dx))
+    (true dx)
+    nil))
+
+(defun-with-dx nested-dx-conses ()
+  (let ((dx (cons 1 (cons 2 (cons 3 (cons (cons t t) nil))))))
+    (declare (dynamic-extent dx))
+    (true dx)
+    nil))
+
+(defun-with-dx nested-dx-not-used (x)
+  (declare (list x))
+  (let ((l (setf (car x) (list x x x))))
+    (declare (dynamic-extent l))
+    (true l)
+    (true (length l))
+    nil))
+
+(defun-with-dx nested-evil-dx-used (x)
+  (declare (list x))
+  (let ((l (list x x x)))
+    (declare (dynamic-extent l))
+    (unwind-protect
+         (progn
+           (setf (car x) l)
+           (true l))
+      (setf (car x) nil))
+    nil))
 
+;;; multiple uses for dx lvar
 
+(defun-with-dx multiple-dx-uses ()
+  (let ((dx (if (true t)
+                (list 1 2 3)
+                (list 2 3 4))))
+    (declare (dynamic-extent dx))
+    (true dx)
+    nil))
+
+;;; 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*))
 \f
 (defmacro assert-no-consing (form &optional times)
-  `(%assert-no-consing (lambda () ,form ,times)))
+  `(%assert-no-consing (lambda () ,form) ,times))
 (defun %assert-no-consing (thunk &optional times)
   (let ((before (get-bytes-consed))
         (times (or times 10000)))
@@ -121,8 +215,21 @@
       (funcall thunk))
     (assert (< (- (get-bytes-consed) before) times))))
 
-#+(or x86 x86-64 alpha ppc)
+(defmacro assert-consing (form &optional times)
+  `(%assert-consing (lambda () ,form) ,times))
+(defun %assert-consing (thunk &optional times)
+  (let ((before (get-bytes-consed))
+        (times (or times 10000)))
+    (declare (type (integer 1 *) times))
+    (dotimes (i times)
+      (funcall thunk))
+    (assert (not (< (- (get-bytes-consed) before) times)))))
+
+(defvar *a-cons* (cons nil nil))
+
+#+(or x86 x86-64 alpha ppc sparc mips)
 (progn
+  (assert-no-consing (dxclosure 42))
   (assert-no-consing (dxlength 1 2 3))
   (assert-no-consing (dxlength t t t t t t))
   (assert-no-consing (dxlength))
@@ -130,7 +237,18 @@
   (assert-no-consing (test-nip-values))
   (assert-no-consing (test-let-var-subst1 17))
   (assert-no-consing (test-let-var-subst2 17))
-  (assert-no-consing (test-lvar-subst 11)))
+  (assert-no-consing (test-lvar-subst 11))
+  (assert-no-consing (dx-value-cell 13))
+  (assert-no-consing (cons-on-stack 42))
+  (assert-no-consing (nested-dx-conses))
+  (assert-no-consing (nested-dx-lists))
+  (assert-consing (nested-dx-not-used *a-cons*))
+  (assert-no-consing (nested-evil-dx-used *a-cons*))
+  (assert-no-consing (multiple-dx-uses))
+  ;; Not strictly DX..
+  (assert-no-consing (test-hash-table))
+  #+sb-thread
+  (assert-no-consing (test-spinlock)))
 
 \f
 ;;; Bugs found by Paul F. Dietz
@@ -174,4 +292,3 @@
 (bdowning-2005-iv-16)
 
 \f
-(sb-ext:quit :unix-status 104)