Eliminate "unused variable" warning from ARRAY-ROW-MAJOR-INDEX

[sbcl.git] / src / compiler / ppc / move.lisp

diff --git a/src/compiler/ppc/move.lisp b/src/compiler/ppc/move.lisp
index 966925b..e0c83fe 100644 (file)
--- a/src/compiler/ppc/move.lisp
+++ b/src/compiler/ppc/move.lisp
@@ -33,7 +33,7 @@
 
 (define-move-fun (load-character 1) (vop x y)
   ((immediate) (character-reg))
-  (inst li y (char-code (tn-value x))))
+  (inst lr y (char-code (tn-value x))))
 
 (define-move-fun (load-system-area-pointer 1) (vop x y)
   ((immediate) (sap-reg))
@@ -141,7 +141,7 @@
   (:arg-types tagged-num)
   (:note "fixnum untagging")
   (:generator 1
-    (inst srawi y x 2)))
+    (inst srawi y x n-fixnum-tag-bits)))
 (define-move-vop move-to-word/fixnum :move
   (any-reg descriptor-reg) (signed-reg unsigned-reg))
 
@@ -151,7 +151,11 @@
   (:results (y :scs (signed-reg unsigned-reg)))
   (:note "constant load")
   (:generator 1
-    (inst lr y (tn-value x))))
+    (cond ((sb!c::tn-leaf x)
+           (inst lr y (tn-value x)))
+          (t
+           (loadw y code-tn (tn-offset x) other-pointer-lowtag)
+           (inst srawi y y n-fixnum-tag-bits)))))
 (define-move-vop move-to-word-c :move
   (constant) (signed-reg unsigned-reg))
 
@@ -163,12 +167,8 @@
   (:temporary (:scs (non-descriptor-reg)) temp)
   (:generator 4
     (let ((done (gen-label)))
-      (inst andi. temp x 3)
-      (sc-case y
-        (signed-reg
-         (inst srawi y x 2))
-        (unsigned-reg
-         (inst srwi y x 2)))
+      (inst andi. temp x fixnum-tag-mask)
+      (inst srawi y x n-fixnum-tag-bits)
 
       (inst beq done)
       (loadw y x bignum-digits-offset other-pointer-lowtag)
@@ -185,7 +185,7 @@
   (:result-types tagged-num)
   (:note "fixnum tagging")
   (:generator 1
-    (inst slwi y x 2)))
+    (inst slwi y x n-fixnum-tag-bits)))
 (define-move-vop move-from-word/fixnum :move
   (signed-reg unsigned-reg) (any-reg descriptor-reg))
 
@@ -203,7 +203,7 @@
       (inst mtxer zero-tn)              ; clear sticky overflow bit in XER, CR0
       (inst addo temp x x)              ; set XER OV if top two bits differ
       (inst addo. temp temp temp)       ; set CR0 SO if any top three bits differ
-      (inst slwi y x 2)                 ; assume fixnum (tagged ok, maybe lost some high bits)
+      (inst slwi y x n-fixnum-tag-bits) ; assume fixnum (tagged ok, maybe lost some high bits)
       (inst bns done)
 
       (with-fixed-allocation (y pa-flag temp bignum-widetag (1+ bignum-digits-offset))
@@ -225,8 +225,8 @@
     (move x arg)
     (let ((done (gen-label))
           (one-word (gen-label)))
-      (inst srawi. temp x 29)
-      (inst slwi y x 2)
+      (inst srawi. temp x n-positive-fixnum-bits)
+      (inst slwi y x n-fixnum-tag-bits)
       (inst beq done)
 
       (with-fixed-allocation