X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fglobaldb.lisp;h=05bee480996090406bb9a7f0f965da063925c30b;hb=5dcf5905dc38232b3cc5ec6b309ea5c6424db957;hp=242445e85d180ed5a1faa7766d3661b229c5a9e8;hpb=2d3cb6dba6461e98744eca2a1df4f770cea468ca;p=sbcl.git

diff --git a/src/compiler/globaldb.lisp b/src/compiler/globaldb.lisp
index 242445e..05bee48 100644
--- a/src/compiler/globaldb.lisp
+++ b/src/compiler/globaldb.lisp
@@ -360,7 +360,7 @@
 	     ,(do-compact-info name class type type-number value
 			       n-env body)))))
 
-(eval-when (:compile-toplevel :load-toplevel :execute)
+(eval-when (#-sb-xc :compile-toplevel :load-toplevel :execute)
 
 ;;; Return code to iterate over a compact info environment.
 (defun do-compact-info (name-var class-var type-var type-number-var value-var
@@ -541,7 +541,20 @@
 ;;; Encache NAME in the compact environment ENV. HASH is the
 ;;; GLOBALDB-SXHASHOID of NAME.
 (defun compact-info-lookup (env name hash)
-  (declare (type compact-info-env env) (type index hash))
+  (declare (type compact-info-env env)
+	   ;; FIXME: this used to read (TYPE INDEX HASH), but that was
+	   ;; wrong, because HASH was a positive fixnum, not a (MOD
+	   ;; MOST-POSITIVE-FIXNUM).
+	   ;;
+	   ;; However, this, its replacement, is also wrong.  In the
+	   ;; cross-compiler, GLOBALDB-SXHASHOID is essentially
+	   ;; SXHASH.  But our host compiler could have any value at
+	   ;; all as its MOST-POSITIVE-FIXNUM, and so could in
+	   ;; principle return a value exceeding our target positive
+	   ;; fixnum range.
+	   ;;
+	   ;; My brain hurts.  -- CSR, 2003-08-28
+	   (type (integer 0 #.sb!xc:most-positive-fixnum) hash))
   (let* ((table (compact-info-env-table env))
 	 (len (length table))
 	 (len-2 (- len 2))
@@ -703,7 +716,9 @@
 
 ;;; Just like COMPACT-INFO-LOOKUP, only do it on a volatile environment.
 (defun volatile-info-lookup (env name hash)
-  (declare (type volatile-info-env env) (type index hash))
+  (declare (type volatile-info-env env)
+	   ;; FIXME: see comment in COMPACT-INFO-LOOKUP
+	   (type (integer 0 #.sb!xc:most-positive-fixnum) hash))
   (let ((table (volatile-info-env-table env)))
     (macrolet ((lookup (test)
 		 `(dolist (entry (svref table (mod hash (length table))) ())
@@ -714,7 +729,6 @@
 		(lookup eq)
 		(lookup equal)))
       (setf (volatile-info-env-cache-name env) name)))
-
   (values))
 
 ;;; Given a volatile environment ENV, bind TABLE-VAR the environment's table
@@ -819,15 +833,14 @@
   ;; Constant CLASS and TYPE is an overwhelmingly common special case,
   ;; and we can implement it much more efficiently than the general case.
   (if (and (constantp class) (constantp type))
-      (let ((info (type-info-or-lose class type))
-	    (value (gensym "VALUE"))
-	    (foundp (gensym "FOUNDP")))
-	`(multiple-value-bind (,value ,foundp)
-	     (get-info-value ,name
-			     ,(type-info-number info)
-			     ,@(when env-list-p `(,env-list))) 
-	   (declare (type ,(type-info-type info) ,value))
-	   (values ,value ,foundp)))
+      (let ((info (type-info-or-lose class type)))
+	(with-unique-names (value foundp)
+	  `(multiple-value-bind (,value ,foundp)
+	       (get-info-value ,name
+			       ,(type-info-number info)
+			       ,@(when env-list-p `(,env-list))) 
+	     (declare (type ,(type-info-type info) ,value))
+	     (values ,value ,foundp))))
       whole))
 (defun (setf info) (new-value
 		    class