X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2Fcode%2Fnumbers.lisp;h=c62f864a6dd8247b1f76f2cf6f88efbc69595619;hb=1e9966d5f24709d227e20911b4e1ddd27c87a00e;hp=3632cd6e89ac3af615e07303ec7bd99b2196d9f8;hpb=ce18bcfe50994889a5e3245cacd8702b5a0ced89;p=sbcl.git

diff --git a/src/code/numbers.lisp b/src/code/numbers.lisp
index 3632cd6..c62f864 100644
--- a/src/code/numbers.lisp
+++ b/src/code/numbers.lisp
@@ -1358,21 +1358,18 @@
 #.
 (collect ((forms))
   (flet ((definition (name lambda-list width pattern)
-           (assert (sb!xc:subtypep `(unsigned-byte ,width)
-                                   'bignum-element-type))
            `(defun ,name ,lambda-list
               (flet ((prepare-argument (x)
                        (declare (integer x))
                        (etypecase x
                          ((unsigned-byte ,width) x)
-                         (bignum-element-type (logand x ,pattern))
                          (fixnum (logand x ,pattern))
-                         (bignum (logand (%bignum-ref x 0) ,pattern)))))
+                         (bignum (logand x ,pattern)))))
                 (,name ,@(loop for arg in lambda-list
                                collect `(prepare-argument ,arg)))))))
     (loop for infos being each hash-value of sb!c::*modular-funs*
           ;; FIXME: We need to process only "toplevel" functions
-          unless (eq infos :good)
+          when (listp infos)
           do (loop for info in infos
                    for name = (sb!c::modular-fun-info-name info)
                    and width = (sb!c::modular-fun-info-width info)
@@ -1380,3 +1377,21 @@
                    for pattern = (1- (ash 1 width))
                    do (forms (definition name lambda-list width pattern)))))
   `(progn ,@(forms)))
+
+;;; KLUDGE: these out-of-line definitions can't use the modular
+;;; arithmetic, as that is only (currently) defined for constant
+;;; shifts.  See also the comment in (LOGAND OPTIMIZER) for more
+;;; discussion of this hack.  -- CSR, 2003-10-09
+#!-alpha
+(defun sb!vm::ash-left-mod32 (integer amount)
+  (etypecase integer
+    ((unsigned-byte 32) (ldb (byte 32 0) (ash integer amount)))
+    (fixnum (ldb (byte 32 0) (ash (logand integer #xffffffff) amount)))
+    (bignum (ldb (byte 32 0) (ash (logand integer #xffffffff) amount)))))
+#!+alpha
+(defun sb!vm::ash-left-mod64 (integer amount)
+  (etypecase integer
+    ((unsigned-byte 64) (ldb (byte 64 0) (ash integer amount)))
+    (fixnum (ldb (byte 64 0) (ash (logand integer #xffffffffffffffff) amount)))
+    (bignum (ldb (byte 64 0)
+		 (ash (logand integer #xffffffffffffffff) amount)))))