0.8.3.54:

[sbcl.git] / tests / arith.pure.lisp

diff --git a/tests/arith.pure.lisp b/tests/arith.pure.lisp
index 563f369..3452abe 100644 (file)
--- a/tests/arith.pure.lisp
+++ b/tests/arith.pure.lisp
@@ -137,3 +137,11 @@
             (65 (ash most-negative-fixnum 36) t)))
   (destructuring-bind (index int result) x
     (assert (eq (eval `(logbitp ,index ,int)) result))))
+
+;;; off-by-1 type inference error for %DPB and %DEPOSIT-FIELD:
+(let ((f (compile nil '(lambda (b)
+                        (integer-length (dpb b (byte 4 28) -1005))))))
+  (assert (= (funcall f 1230070) 32)))
+(let ((f (compile nil '(lambda (b)
+                        (integer-length (deposit-field b (byte 4 28) -1005))))))
+  (assert (= (funcall f 1230070) 32)))