X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fx86%2Fcell.lisp;h=c3cfb86ab9de748449ebfa175f9f372e2a4ad410;hb=9c7b8638313069c25a9718985720d69c9f4a1cda;hp=690d5853a55719223916b0d361c50228a6bc31c5;hpb=a10eba73462a7203914114f3a4bdac98c741ec08;p=sbcl.git

diff --git a/src/compiler/x86/cell.lisp b/src/compiler/x86/cell.lisp
index 690d585..c3cfb86 100644
--- a/src/compiler/x86/cell.lisp
+++ b/src/compiler/x86/cell.lisp
@@ -116,13 +116,8 @@
   (:generator 2
     ;; The symbol-hash slot of NIL holds NIL because it is also the
     ;; cdr slot, so we have to strip off the two low bits to make sure
-    ;; it is a fixnum.
-    ;;
-    ;; FIXME: Is this still true? It seems to me from my reading of
-    ;; the DEFINE-PRIMITIVE-OBJECT in objdef.lisp that the symbol-hash
-    ;; is the second slot, and offset 0 = tags and stuff (and CAR slot in
-    ;; a CONS), offset 1 = value slot (and CDR slot in a CONS), and
-    ;; offset 2 = hash slot.
+    ;; it is a fixnum.  The lowtag selection magic that is required to
+    ;; ensure this is explained in the comment in objdef.lisp
     (loadw res symbol symbol-hash-slot other-pointer-lowtag)
     (inst and res (lognot #b11))))
 
@@ -139,10 +134,7 @@
   (:generator 10
     (loadw value object fdefn-fun-slot other-pointer-lowtag)
     (inst cmp value nil-value)
-    ;; FIXME: UNDEFINED-SYMBOL-ERROR seems to actually be for symbols with no
-    ;; function value, not, as the name might suggest, symbols with no ordinary
-    ;; value. Perhaps the name could be made more mnemonic?
-    (let ((err-lab (generate-error-code vop undefined-symbol-error object)))
+    (let ((err-lab (generate-error-code vop undefined-fun-error object)))
       (inst jmp :e err-lab))))
 
 (define-vop (set-fdefn-fun)