X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=tests%2Ffloat.pure.lisp;h=bea74a83a79e55d746d6ff1e889b654f774c7522;hb=fd79e33e6b6dacdc52cf6668a5bb7adf75aad6c1;hp=b179f60b4af6574668e99a8a2ba460e52fa03a4a;hpb=dd56f278be887a99552a847164386dddcaf4df46;p=sbcl.git

diff --git a/tests/float.pure.lisp b/tests/float.pure.lisp
index b179f60..bea74a8 100644
--- a/tests/float.pure.lisp
+++ b/tests/float.pure.lisp
@@ -125,11 +125,13 @@
 (funcall (compile nil '(lambda () (tan (tan (round 0))))))
 
 (with-test (:name (:addition-overflow :bug-372)
-            :fails-on '(or :ppc :darwin :mips (and :x86 :netbsd)))
+            :fails-on '(or :ppc :darwin (and :x86 :netbsd)))
   (assert (typep (nth-value
                   1
                   (ignore-errors
                     (sb-sys:without-interrupts
+                     (sb-int:set-floating-point-modes :current-exceptions nil
+                                                      :accrued-exceptions nil)
                      (loop repeat 2 summing most-positive-double-float)
                      (sleep 2))))
                  'floating-point-overflow)))
@@ -159,7 +161,7 @@
 
 
 (with-test (:name :nan-comparisons
-            :fails-on '(or :x86-64 :sparc :mips))
+            :fails-on '(or :sparc :mips))
   (sb-int:with-float-traps-masked (:invalid)
     (macrolet ((test (form)
                  (let ((nform (subst '(/ 0.0 0.0) 'nan form)))
@@ -202,3 +204,32 @@
       (test (not (> nan nan)))
       (test (not (> -1.0 nan)))
       (test (not (> nan 1.0))))))
+
+(with-test (:name :log-int/double-accuracy)
+  ;; we used to use single precision for intermediate results
+  (assert (eql 2567.6046442221327d0
+               (log (loop for n from 1 to 1000 for f = 1 then (* f n)
+                          finally (return f))
+                    10d0)))
+  ;; both ways
+  (assert (eql (log 123123123.0d0 10) (log 123123123 10.0d0))))
+
+(with-test (:name :log-base-zero-return-type)
+  (assert (eql 0.0f0 (log 123 (eval 0))))
+  (assert (eql 0.0d0 (log 123.0d0 (eval 0))))
+  (assert (eql 0.0d0 (log 123 (eval 0.0d0))))
+  (let ((f (compile nil '(lambda (x y)
+                          (declare (optimize speed))
+                          (etypecase x
+                            (single-float
+                             (etypecase y
+                               (single-float (log x y))
+                               (double-float (log x y))))
+                            (double-float
+                             (etypecase y
+                               (single-float (log x y))
+                               (double-float (log x y)))))))))
+    (assert (eql 0.0f0 (funcall f 123.0 0.0)))
+    (assert (eql 0.0d0 (funcall f 123.0d0 0.0)))
+    (assert (eql 0.0d0 (funcall f 123.0d0 0.0d0)))
+    (assert (eql 0.0d0 (funcall f 123.0 0.0d0)))))