1.0.33.20: MORE CONSTANTIFICATION

[sbcl.git] / src / compiler / alpha / system.lisp

diff --git a/src/compiler/alpha/system.lisp b/src/compiler/alpha/system.lisp
index 70c7c47..c79d117 100644 (file)
--- a/src/compiler/alpha/system.lisp
+++ b/src/compiler/alpha/system.lisp
@@ -116,7 +116,7 @@
     (inst and t1 widetag-mask t1)
     (sc-case data
       (any-reg
-       (inst sll data (- n-widetag-bits 2) t2)
+       (inst sll data (- n-widetag-bits n-fixnum-tag-bits) t2)
        (inst bis t1 t2 t1))
       (immediate
        (let ((c (ash (tn-value data) n-widetag-bits)))
@@ -129,13 +129,14 @@
     (storew t1 x 0 other-pointer-lowtag)
     (move x res)))
 
-(define-vop (make-fixnum)
+(define-vop (pointer-hash)
+  (:translate pointer-hash)
   (:args (ptr :scs (any-reg descriptor-reg)))
   (:results (res :scs (any-reg descriptor-reg)))
+  (:policy :fast-safe)
   (:generator 1
-    ;;
-    ;; Some code (the hash table code) depends on this returning a
-    ;; positive number so make sure it does.
+    ;; FIXME: It would be better if this would mask the lowtag,
+    ;; and shift the result into a positive fixnum like on x86.
     (inst sll ptr 35 res)
     (inst srl res 33 res)))