0.8.10.29:

[sbcl.git] / tests / compiler.impure.lisp

diff --git a/tests/compiler.impure.lisp b/tests/compiler.impure.lisp
index 6e4ee6d..67152a1 100644 (file)
--- a/tests/compiler.impure.lisp
+++ b/tests/compiler.impure.lisp
@@ -890,7 +890,24 @@
                  (type-error (c)
                    (return-from return :good))))
              :good))
-
+\f
+;;;; MUFFLE-CONDITIONS test (corresponds to the test in the manual)
+(defvar *compiler-note-count* 0)
+(handler-bind ((sb-ext:compiler-note (lambda (c)
+                                      (declare (ignore c))
+                                      (incf *compiler-note-count*))))
+  (let ((fun
+        (compile nil
+                 '(lambda (x)
+                   (declare (optimize speed) (fixnum x))
+                   (declare (sb-ext:muffle-conditions sb-ext:compiler-note))
+                   (values (* x 5) ; no compiler note from this
+                    (locally
+                      (declare (sb-ext:unmuffle-conditions sb-ext:compiler-note))
+                      ;; this one gives a compiler note
+                      (* x -5)))))))
+    (assert (= *compiler-note-count* 1))
+    (assert (equal (multiple-value-list (funcall fun 1)) '(5 -5)))))
 \f
 ;;;; tests not in the problem domain, but of the consistency of the
 ;;;; compiler machinery itself