+;;; optimizing make-array
+(defun count-code-callees (f)
+ (let ((code (sb-kernel:fun-code-header f))
+ (n 0))
+ (loop for i from sb-vm::code-constants-offset below (sb-kernel:get-header-data code)
+ for c = (sb-kernel:code-header-ref code i)
+ do (when (typep c 'fdefn)
+ (print c)
+ (incf n)))
+ n))
+(assert (zerop (count-code-callees
+ (compile nil
+ `(lambda (x y z)
+ (make-array '(3) :initial-contents (list x y z)))))))
+(assert (zerop (count-code-callees
+ (compile nil
+ `(lambda (x y z)
+ (make-array '3 :initial-contents (vector x y z)))))))
+(assert (zerop (count-code-callees
+ (compile nil
+ `(lambda (x y z)
+ (make-array '3 :initial-contents `(,x ,y ,z)))))))
+
+;;; optimizing (EXPT -1 INTEGER)
+(test-util:with-test (:name (expt minus-one integer))
+ (dolist (x '(-1 -1.0 -1.0d0))
+ (let ((fun (compile nil `(lambda (x) (expt ,x (the fixnum x))))))
+ (assert (zerop (count-code-callees fun)))
+ (dotimes (i 12)
+ (if (oddp i)
+ (assert (eql x (funcall fun i)))
+ (assert (eql (- x) (funcall fun i))))))))
+