Compiler support for specialised implicit value cells

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

diff --git a/tests/dynamic-extent.impure.lisp b/tests/dynamic-extent.impure.lisp
index 76d2cf8..4e0b077 100644 (file)
--- a/tests/dynamic-extent.impure.lisp
+++ b/tests/dynamic-extent.impure.lisp
@@ -993,3 +993,38 @@
       (assert (eql a 1))
       (assert (eql b 2))
       (assert (eql c 3)))))
+
+(defun opaque-funcall (function &rest arguments)
+  (apply function arguments))
+
+(with-test (:name :implicit-value-cells)
+  (flet ((test-it (type input output)
+           (let ((f (compile nil `(lambda (x)
+                                    (declare (type ,type x))
+                                    (flet ((inc ()
+                                             (incf x)))
+                                      (declare (dynamic-extent #'inc))
+                                      (list (opaque-funcall #'inc) x))))))
+             (assert (equal (funcall f input)
+                            (list output output))))))
+    (let ((width sb-vm:n-word-bits))
+      (test-it t (1- most-positive-fixnum) most-positive-fixnum)
+      (test-it `(unsigned-byte ,(1- width)) (ash 1 (- width 2)) (1+ (ash 1 (- width 2))))
+      (test-it `(signed-byte ,width) (ash -1 (- width 2)) (1+ (ash -1 (- width 2))))
+      (test-it `(unsigned-byte ,width) (ash 1 (1- width)) (1+ (ash 1 (1- width))))
+      (test-it 'single-float 3f0 4f0)
+      (test-it 'double-float 3d0 4d0)
+      (test-it '(complex single-float) #c(3f0 4f0) #c(4f0 4f0))
+      (test-it '(complex double-float) #c(3d0 4d0) #c(4d0 4d0)))))
+
+(with-test (:name :sap-implicit-value-cells)
+  (let ((f (compile nil `(lambda (x)
+                           (declare (type system-area-pointer x))
+                           (flet ((inc ()
+                                    (setf x (sb-sys:sap+ x 16))))
+                             (declare (dynamic-extent #'inc))
+                             (list (opaque-funcall #'inc) x)))))
+        (width sb-vm:n-machine-word-bits))
+    (assert (every (lambda (x)
+                     (sb-sys:sap= x (sb-sys:int-sap (+ 16 (ash 1 (1- width))))))
+                   (funcall f (sb-sys:int-sap (ash 1 (1- width))))))))