X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=tests%2Farith.pure.lisp;h=3cc17fa8484806b0ddbb1129bae171d36c4aeed3;hb=5cc68148d1a5f9bacf4eb12e396b680d992fc2c2;hp=959e2c100340db6ff44adbade52f28063cac1327;hpb=80d37651bc4cba800bbf2ba38ea720d734fbae4a;p=sbcl.git

diff --git a/tests/arith.pure.lisp b/tests/arith.pure.lisp
index 959e2c1..3cc17fa 100644
--- a/tests/arith.pure.lisp
+++ b/tests/arith.pure.lisp
@@ -44,6 +44,10 @@
 (assert (= (coerce 1/2 '(complex float)) #c(0.5 0.0)))
 (assert (= (coerce 1.0d0 '(complex float)) #c(1.0d0 0.0d0)))
 
+;;; (COERCE #c(<RATIONAL> <RATIONAL>) '(complex float)) resulted in
+;;; an error up to 0.8.17.31
+(assert (= (coerce #c(1 2) '(complex float)) #c(1.0 2.0)))
+
 ;;; COERCE also sometimes failed to verify that a particular coercion
 ;;; was possible (in particular coercing rationals to bounded float
 ;;; types.
@@ -106,7 +110,10 @@
   (let* ((x (random most-positive-fixnum))
 	 (x2 (* x 2))
 	 (x3 (* x 3)))
-    (let ((fn (handler-bind ((sb-ext:compiler-note #'error))
+    (let ((fn (handler-bind ((sb-ext:compiler-note
+                              (lambda (c)
+                                (when (<= x3 most-positive-fixnum)
+                                  (error c)))))
 		(compile nil
 			 `(lambda (y)
 			    (declare (optimize speed) (type (integer 0 3) y))
@@ -144,11 +151,11 @@
 	     ((1+ most-positive-fixnum) (1+ most-positive-fixnum) nil)
 	     ((1+ most-positive-fixnum) (1- most-negative-fixnum) t)
 	     (1 (ash most-negative-fixnum 1) nil)
-	     (29 most-negative-fixnum t)
-	     (30 (ash most-negative-fixnum 1) t)
-	     (31 (ash most-negative-fixnum 1) t)
-	     (64 (ash most-negative-fixnum 36) nil)
-	     (65 (ash most-negative-fixnum 36) t)))
+	     (#.(- sb-vm:n-word-bits sb-vm:n-lowtag-bits) most-negative-fixnum t)
+	     (#.(1+ (- sb-vm:n-word-bits sb-vm:n-lowtag-bits)) (ash most-negative-fixnum 1) t)
+	     (#.(+ 2 (- sb-vm:n-word-bits sb-vm:n-lowtag-bits)) (ash most-negative-fixnum 1) t)
+	     (#.(+ sb-vm:n-word-bits 32) (ash most-negative-fixnum #.(+ 32 sb-vm:n-lowtag-bits 1)) nil)
+	     (#.(+ sb-vm:n-word-bits 33) (ash most-negative-fixnum #.(+ 32 sb-vm:n-lowtag-bits 1)) t)))
   (destructuring-bind (index int result) x
     (assert (eq (eval `(logbitp ,index ,int)) result))))
 
@@ -203,3 +210,57 @@
 ;;; ASH of a negative bignum by a bignum count would erroneously
 ;;; return 0 prior to sbcl-0.8.4.4
 (assert (= (ash (1- most-negative-fixnum) (1- most-negative-fixnum)) -1))
+
+;;; Whoops.  Too much optimization in division operators for 0
+;;; divisor.
+(macrolet ((frob (name)
+	     `(let ((fn (compile nil '(lambda (x)
+				       (declare (optimize speed) (fixnum x))
+				       (,name x 0)))))
+	       (assert (raises-error? (funcall fn 1) division-by-zero)))))
+  (frob mod)
+  (frob truncate)
+  (frob rem)
+  (frob /)
+  (frob floor)
+  (frob ceiling))
+
+;; Check that the logic in SB-KERNEL::BASIC-COMPARE for doing fixnum/float
+;; comparisons without rationalizing the floats still gives the right anwers
+;; in the edge cases (had a fencepost error).
+(macrolet ((test (range type sign)
+	     `(let (ints
+		    floats
+		    (start (- ,(find-symbol (format nil
+						    "MOST-~A-EXACTLY-~A-FIXNUM"
+						    sign type)
+					    :sb-kernel)
+			      ,range)))
+		(dotimes (i (1+ (* ,range 2)))
+		  (let* ((x (+ start i))
+			 (y (coerce x ',type)))
+		    (push x ints)
+		    (push y floats)))
+		(dolist (i ints)
+		  (dolist (f floats)
+		    (dolist (op '(< <= = >= >))
+		      (unless (eq (funcall op i f)
+				  (funcall op i (rationalize f)))
+			(error "(not (eq (~a ~a ~f) (~a ~a ~a)))~%"
+			       op i f
+			       op i (rationalize f)))
+		      (unless (eq (funcall op f i)
+				  (funcall op (rationalize f) i))
+			(error "(not (eq (~a ~f ~a) (~a ~a ~a)))~%"
+			       op f i
+			       op (rationalize f) i))))))))
+  (test 32 double-float negative)
+  (test 32 double-float positive)
+  (test 32 single-float negative)
+  (test 32 single-float positive))
+
+;; x86-64 sign-extension bug found using pfdietz's random tester.
+(assert (= 286142502
+	   (funcall (lambda () 
+		      (declare (notinline logxor)) 
+		      (min (logxor 0 0 0 286142502))))))