0.8.9.16:

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

diff --git a/tests/compiler.pure.lisp b/tests/compiler.pure.lisp
index eefc810..09457e9 100644 (file)
--- a/tests/compiler.pure.lisp
+++ b/tests/compiler.pure.lisp
@@ -1117,3 +1117,57 @@
                 'integer)))
         (funcall #'%f12 0))))
    -33)))
+
+;;; Discussion of a CMUCL PCL bug on Sparc with Raymond Toy revealed a
+;;; potential problem: optimizers and type derivers for MAX and MIN
+;;; were not consistent in treating EQUALP, but not EQL, arguments.
+(dolist (f '(min max))
+  (loop for complex-arg-args in '((1d0 2d0) (0d0 1d0))
+        for complex-arg = `(if x ,@complex-arg-args)
+        do
+        (loop for args in `((1 ,complex-arg)
+                            (,complex-arg 1))
+              for form = `(,f ,@args)
+              for f1 = (compile nil `(lambda (x) ,form))
+              and f2 = (compile nil `(lambda (x) (declare (notinline min max))
+                                             ,form))
+              do
+              (dolist (x '(nil t))
+                (assert (eql (funcall f1 x) (funcall f2 x)))))))
+
+;;;
+(handler-case (compile nil '(lambda (x)
+                             (declare (optimize (speed 3) (safety 0)))
+                             (the double-float (sqrt (the double-float x)))))
+  (sb-ext:compiler-note ()
+    (error "Compiler does not trust result type assertion.")))
+
+(let ((f (compile nil '(lambda (x)
+                        (declare (optimize speed (safety 0)))
+                        (block nil
+                          (the double-float
+                            (multiple-value-prog1
+                                (sqrt (the double-float x))
+                              (when (< x 0)
+                                (return :minus)))))))))
+  (assert (eql (funcall f -1d0) :minus))
+  (assert (eql (funcall f 4d0) 2d0)))
+
+;;; bug 304: SBCL produced something similar to (/ (ASH x 4) 8)
+(handler-case
+    (compile nil '(lambda (a i)
+                   (locally
+                     (declare (optimize (speed 3) (safety 0) (space 0) (debug 0)
+                                        (inhibit-warnings 0)))
+                     (declare (type (alien (* (unsigned 8))) a)
+                              (type (unsigned-byte 32) i))
+                     (deref a i))))
+  (compiler-note () (error "The code is not optimized.")))
+
+(handler-case
+    (compile nil '(lambda (x)
+                  (declare (type (integer -100 100) x))
+                  (declare (optimize speed))
+                  (declare (notinline identity))
+                  (1+ (identity x))))
+  (compiler-note () (error "IDENTITY derive-type not applied.")))