X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=tests%2Fdynamic-extent.impure.lisp;h=8a26b5856f8e020884df1784f3ddf3bf17097690;hb=92d16270c6fc672683479f1f4dfe4eb1ca2711b2;hp=339759dc1ed9563620b2fbdf90a54798be1b0ea0;hpb=1e0911cab5d91a2253141bcdb473035b1e591473;p=sbcl.git

diff --git a/tests/dynamic-extent.impure.lisp b/tests/dynamic-extent.impure.lisp
index 339759d..8a26b58 100644
--- a/tests/dynamic-extent.impure.lisp
+++ b/tests/dynamic-extent.impure.lisp
@@ -6,18 +6,24 @@
 ;;;; 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.
 
-;;; &REST lists
+(setq sb-c::*check-consistency* t)
+
 (defmacro defun-with-dx (name arglist &body body)
   `(locally
      (declare (optimize sb-c::stack-allocate-dynamic-extent))
      (defun ,name ,arglist
        ,@body)))
 
+(declaim (notinline opaque-identity))
+(defun opaque-identity (x)
+  x)
+
+;;; &REST lists
 (defun-with-dx dxlength (&rest rest)
   (declare (dynamic-extent rest))
   (length rest))
@@ -33,7 +39,152 @@
 (defun-with-dx dxcaller (&rest rest)
   (declare (dynamic-extent rest))
   (callee rest))
-
 (assert (= (dxcaller 1 2 3 4 5 6 7) 22))
+
+(defun-with-dx dxcaller-align-1 (x &rest rest)
+  (declare (dynamic-extent rest))
+  (+ x (callee rest)))
+(assert (= (dxcaller-align-1 17 1 2 3 4 5 6 7) 39))
+(assert (= (dxcaller-align-1 17 1 2 3 4 5 6 7 8) 40))
+
+;;; %NIP-VALUES
+(defun-with-dx test-nip-values ()
+  (flet ((bar (x &rest y)
+           (declare (dynamic-extent y))
+           (if (> x 0)
+               (values x (length y))
+               (values (car y)))))
+    (multiple-value-call #'values
+      (bar 1 2 3 4 5 6)
+      (bar -1 'a 'b))))
+
+(assert (equal (multiple-value-list (test-nip-values)) '(1 5 a)))
+
+;;; LET-variable substitution
+(defun-with-dx test-let-var-subst1 (x)
+  (let ((y (list x (1- x))))
+    (opaque-identity :foo)
+    (let ((z (the list y)))
+      (declare (dynamic-extent z))
+      (length z))))
+(assert (eql (test-let-var-subst1 17) 2))
+
+(defun-with-dx test-let-var-subst2 (x)
+  (let ((y (list x (1- x))))
+    (declare (dynamic-extent y))
+    (opaque-identity :foo)
+    (let ((z (the list y)))
+      (length z))))
+(assert (eql (test-let-var-subst2 17) 2))
+
+;;; DX propagation through LET-return.
+(defun-with-dx test-lvar-subst (x)
+  (let ((y (list x (1- x))))
+    (declare (dynamic-extent y))
+    (second (let ((z (the list y)))
+              (opaque-identity :foo)
+              z))))
+(assert (eql (test-lvar-subst 11) 10))
+
+;;; this code is incorrect, but the compiler should not fail
+(defun-with-dx test-let-var-subst-incorrect (x)
+  (let ((y (list x (1- x))))
+    (opaque-identity :foo)
+    (let ((z (the list y)))
+      (declare (dynamic-extent z))
+      (opaque-identity :bar)
+      z)))
+
+;;; alignment
+(defvar *x*)
+(defun-with-dx test-alignment-dx-list (form)
+  (multiple-value-prog1 (eval form)
+    (let ((l (list 1 2 3 4)))
+      (declare (dynamic-extent l))
+      (setq *x* (copy-list l)))))
+(dotimes (n 64)
+  (let* ((res (loop for i below n collect i))
+         (form `(values ,@res)))
+    (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)))
+
+
+(defmacro assert-no-consing (form &optional times)
+  `(%assert-no-consing (lambda () ,form) ,times))
+(defun %assert-no-consing (thunk &optional times)
+  (let ((before (get-bytes-consed))
+        (times (or times 10000)))
+    (declare (type (integer 1 *) times))
+    (dotimes (i times)
+      (funcall thunk))
+    (assert (< (- (get-bytes-consed) before) times))))
+
+#+(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))
+  (assert-no-consing (dxcaller 1 2 3 4 5 6 7))
+  (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)))
+
+
+;;; Bugs found by Paul F. Dietz
+(assert
+ (eq
+  (funcall
+   (compile
+    nil
+    '(lambda (a b)
+      (declare (optimize (speed 2) (space 0) (safety 0)
+                (debug 1) (compilation-speed 3)))
+      (let* ((v5 (cons b b)))
+        (declare (dynamic-extent v5))
+        a)))
+   'x 'y)
+  'x))
+
+
+;;; other bugs
+
+;;; bug reported by Svein Ove Aas
+(defun svein-2005-ii-07 (x y)
+  (declare (optimize (speed 3) (space 2) (safety 0) (debug 0)))
+  (let ((args (list* y 1 2 x)))
+    (declare (dynamic-extent args))
+    (apply #'aref args)))
+(assert (eql
+         (svein-2005-ii-07
+          '(0)
+          #3A(((1 1 1) (1 1 1) (1 1 1))
+              ((1 1 1) (1 1 1) (4 1 1))
+              ((1 1 1) (1 1 1) (1 1 1))))
+         4))
+
+;;; bug reported by Brian Downing: stack-allocated arrays were not
+;;; filled with zeroes.
+(defun-with-dx bdowning-2005-iv-16 ()
+  (let ((a (make-array 11 :initial-element 0)))
+    (declare (dynamic-extent a))
+    (assert (every (lambda (x) (eql x 0)) a))))
+(bdowning-2005-iv-16)
+
 
-(sb-ext:quit :unix-status 104)
\ No newline at end of file