X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Falpha%2Fmove.lisp;h=bfdb4fe2998ff7796a77deddb35a8d2330064086;hb=4898ef32c639b1c7f4ee13a5ba566ce6debd03e6;hp=0b76ace1cc6520c87a45f501d3adf15c21023dc5;hpb=d40a76606c86722b0aef8179155f9f2840739b72;p=sbcl.git

diff --git a/src/compiler/alpha/move.lisp b/src/compiler/alpha/move.lisp
index 0b76ace..bfdb4fe 100644
--- a/src/compiler/alpha/move.lisp
+++ b/src/compiler/alpha/move.lisp
@@ -23,16 +23,16 @@
       (symbol
        (load-symbol y val))
       (character
-       (inst li (logior (ash (char-code val) n-widetag-bits) base-char-widetag)
-	     y)))))
+       (inst li (logior (ash (char-code val) n-widetag-bits) character-widetag)
+             y)))))
 
 (define-move-fun (load-number 1) (vop x y)
   ((zero immediate)
    (signed-reg unsigned-reg))
   (inst li (tn-value x) y))
 
-(define-move-fun (load-base-char 1) (vop x y)
-  ((immediate) (base-char-reg))
+(define-move-fun (load-character 1) (vop x y)
+  ((immediate) (character-reg))
   (inst li (char-code (tn-value x)) y))
 
 (define-move-fun (load-system-area-pointer 1) (vop x y)
@@ -48,7 +48,7 @@
   (load-stack-tn y x))
 
 (define-move-fun (load-number-stack 5) (vop x y)
-  ((base-char-stack) (base-char-reg))
+  ((character-stack) (character-reg))
   (let ((nfp (current-nfp-tn vop)))
     (loadw y nfp (tn-offset x))))
 
@@ -64,7 +64,7 @@
   (store-stack-tn y x))
 
 (define-move-fun (store-number-stack 5) (vop x y)
-  ((base-char-reg) (base-char-stack))
+  ((character-reg) (character-stack))
   (let ((nfp (current-nfp-tn vop)))
     (storew x nfp (tn-offset y))))
 
@@ -79,36 +79,36 @@
 
 (define-vop (move)
   (:args (x :target y
-	    :scs (any-reg descriptor-reg zero null)
-	    :load-if (not (location= x y))))
+            :scs (any-reg descriptor-reg zero null)
+            :load-if (not (location= x y))))
   (:results (y :scs (any-reg descriptor-reg control-stack)
-	       :load-if (not (location= x y))))
+               :load-if (not (location= x y))))
   (:effects)
   (:affected)
   (:generator 0
     (unless (location= x y)
       (sc-case y
-	((any-reg descriptor-reg)
-	 (inst move x y))
-	(control-stack
-	 (store-stack-tn y x))))))
+        ((any-reg descriptor-reg)
+         (inst move x y))
+        (control-stack
+         (store-stack-tn y x))))))
 
 (define-move-vop move :move
   (any-reg descriptor-reg zero null)
   (any-reg descriptor-reg))
 
-;;; Make Move the check VOP for T so that type check generation
+;;; Make MOVE the check VOP for T so that type check generation
 ;;; doesn't think it is a hairy type. This also allows checking of a
 ;;; few of the values in a continuation to fall out.
 (primitive-type-vop move (:check) t)
 
-;;; The Move-Argument VOP is used for moving descriptor values into
+;;; The MOVE-ARG VOP is used for moving descriptor values into
 ;;; another frame for argument or known value passing.
-(define-vop (move-argument)
+(define-vop (move-arg)
   (:args (x :target y
-	    :scs (any-reg descriptor-reg null zero))
-	 (fp :scs (any-reg)
-	     :load-if (not (sc-is y any-reg descriptor-reg))))
+            :scs (any-reg descriptor-reg null zero))
+         (fp :scs (any-reg)
+             :load-if (not (sc-is y any-reg descriptor-reg))))
   (:results (y))
   (:generator 0
     (sc-case y
@@ -117,7 +117,7 @@
       (control-stack
        (storew x fp (tn-offset y))))))
 ;;;
-(define-move-vop move-argument :move-argument
+(define-move-vop move-arg :move-arg
   (any-reg descriptor-reg null zero)
   (any-reg descriptor-reg))
 
@@ -142,7 +142,7 @@
 ;;;; representation. Similarly, the MOVE-FROM-WORD VOPs converts a raw
 ;;;; integer to a tagged bignum or fixnum.
 
-;;; Arg is a fixnum, so just shift it. We need a type restriction
+;;; ARG is a fixnum, so just shift it. We need a type restriction
 ;;; because some possible arg SCs (control-stack) overlap with
 ;;; possible bignum arg SCs.
 (define-vop (move-to-word/fixnum)
@@ -151,23 +151,21 @@
   (:arg-types tagged-num)
   (:note "fixnum untagging")
   (:generator 1
-    (inst sra x 2 y)))
-;;;
+    (inst sra x n-fixnum-tag-bits y)))
 (define-move-vop move-to-word/fixnum :move
   (any-reg descriptor-reg) (signed-reg unsigned-reg))
 
-;;; Arg is a non-immediate constant, load it.
+;;; ARG is a non-immediate constant, load it.
 (define-vop (move-to-word-c)
   (:args (x :scs (constant)))
   (:results (y :scs (signed-reg unsigned-reg)))
   (:note "constant load")
   (:generator 1
     (inst li (tn-value x) y)))
-;;;
 (define-move-vop move-to-word-c :move
   (constant) (signed-reg unsigned-reg))
 
-;;; Arg is a fixnum or bignum, figure out which and load if necessary.
+;;; ARG is a fixnum or bignum, figure out which and load if necessary.
 (define-vop (move-to-word/integer)
   (:args (x :scs (descriptor-reg)))
   (:results (y :scs (signed-reg unsigned-reg)))
@@ -175,8 +173,8 @@
   (:temporary (:sc non-descriptor-reg) header)
   (:temporary (:scs (non-descriptor-reg)) temp)
   (:generator 3
-    (inst and x 3 temp)
-    (inst sra x 2 y)
+    (inst and x fixnum-tag-mask temp)
+    (inst sra x n-fixnum-tag-bits y)
     (inst beq temp done)
 
     (loadw header x 0 other-pointer-lowtag)
@@ -193,12 +191,10 @@
     (when (sc-is y unsigned-reg)
       (inst mskll y 4 y))
     DONE))
-;;;
 (define-move-vop move-to-word/integer :move
   (descriptor-reg) (signed-reg unsigned-reg))
 
-
-;;; Result is a fixnum, so we can just shift. We need the result type
+;;; RESULT is a fixnum, so we can just shift. We need the result type
 ;;; restriction because of the control-stack ambiguity noted above.
 (define-vop (move-from-word/fixnum)
   (:args (x :scs (signed-reg unsigned-reg)))
@@ -206,12 +202,11 @@
   (:result-types tagged-num)
   (:note "fixnum tagging")
   (:generator 1
-    (inst sll x 2 y)))
-;;;
+    (inst sll x n-fixnum-tag-bits y)))
 (define-move-vop move-from-word/fixnum :move
   (signed-reg unsigned-reg) (any-reg descriptor-reg))
 
-;;; Result may be a bignum, so we have to check. Use a worst-case cost
+;;; RESULT may be a bignum, so we have to check. Use a worst-case cost
 ;;; to make sure people know they may be number consing.
 (define-vop (move-from-signed)
   (:args (arg :scs (signed-reg unsigned-reg) :target x))
@@ -221,8 +216,8 @@
   (:note "signed word to integer coercion")
   (:generator 18
     (move arg x)
-    (inst sra x 29 temp)
-    (inst sll x 2 y)
+    (inst sra x n-positive-fixnum-bits temp)
+    (inst sll x n-fixnum-tag-bits y)
     (inst beq temp done)
     (inst not temp temp)
     (inst beq temp done)
@@ -234,7 +229,7 @@
     (inst cmoveq temp 1 header)
     (inst sll header n-widetag-bits header)
     (inst bis header bignum-widetag header)
-      
+
     (pseudo-atomic (:extra (pad-data-block (+ bignum-digits-offset 3)))
       (inst bis alloc-tn other-pointer-lowtag y)
       (storew header y 0 other-pointer-lowtag)
@@ -242,8 +237,6 @@
       (inst srl x 32 temp)
       (storew temp y (1+ bignum-digits-offset) other-pointer-lowtag))
     DONE))
-      
-;;;
 (define-move-vop move-from-signed :move
   (signed-reg) (descriptor-reg))
 
@@ -258,10 +251,10 @@
   (:note "unsigned word to integer coercion")
   (:generator 20
     (move arg x)
-    (inst srl x 29 temp)
-    (inst sll x 2 y)
+    (inst srl x n-positive-fixnum-bits temp)
+    (inst sll x n-fixnum-tag-bits y)
     (inst beq temp done)
-      
+
     (inst li 3 temp)
     (inst cmovge x 2 temp)
     (inst srl x 31 temp1)
@@ -276,33 +269,30 @@
       (inst srl x 32 temp)
       (storew temp y (1+ bignum-digits-offset) other-pointer-lowtag))
     DONE))
-
-;;;
 (define-move-vop move-from-unsigned :move
   (unsigned-reg) (descriptor-reg))
 
 ;;; Move untagged numbers.
 (define-vop (word-move)
   (:args (x :target y
-	    :scs (signed-reg unsigned-reg)
-	    :load-if (not (location= x y))))
+            :scs (signed-reg unsigned-reg)
+            :load-if (not (location= x y))))
   (:results (y :scs (signed-reg unsigned-reg)
-	       :load-if (not (location= x y))))
+               :load-if (not (location= x y))))
   (:effects)
   (:affected)
   (:note "word integer move")
   (:generator 0
     (move x y)))
-;;;
 (define-move-vop word-move :move
   (signed-reg unsigned-reg) (signed-reg unsigned-reg))
 
 ;;; Move untagged number arguments/return-values.
-(define-vop (move-word-argument)
+(define-vop (move-word-arg)
   (:args (x :target y
-	    :scs (signed-reg unsigned-reg))
-	 (fp :scs (any-reg)
-	     :load-if (not (sc-is y sap-reg))))
+            :scs (signed-reg unsigned-reg))
+         (fp :scs (any-reg)
+             :load-if (not (sc-is y sap-reg))))
   (:results (y))
   (:note "word integer argument move")
   (:generator 0
@@ -311,12 +301,11 @@
        (move x y))
       ((signed-stack unsigned-stack)
        (storeq x fp (tn-offset y))))))
-;;;
-(define-move-vop move-word-argument :move-argument
+(define-move-vop move-word-arg :move-arg
   (descriptor-reg any-reg signed-reg unsigned-reg) (signed-reg unsigned-reg))
 
 
-;;; Use standard MOVE-ARGUMENT + coercion to move an untagged number
+;;; Use standard MOVE-ARG + coercion to move an untagged number
 ;;; to a descriptor passing location.
-(define-move-vop move-argument :move-argument
+(define-move-vop move-arg :move-arg
   (signed-reg unsigned-reg) (any-reg descriptor-reg))