1.0.33.20: MORE CONSTANTIFICATION

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

diff --git a/src/compiler/ppc/alloc.lisp b/src/compiler/ppc/alloc.lisp
index d2b5a2a..58d9547 100644 (file)
--- a/src/compiler/ppc/alloc.lisp
+++ b/src/compiler/ppc/alloc.lisp
@@ -197,7 +197,7 @@
   (:temporary (:sc non-descriptor-reg :offset nl3-offset) pa-flag)
   (:generator 6
     (inst addi bytes extra (* (1+ words) n-word-bytes))
-    (inst slwi header bytes (- n-widetag-bits 2))
+    (inst slwi header bytes (- n-widetag-bits n-fixnum-tag-bits))
     (inst addi header header (+ (ash -2 n-widetag-bits) type))
     (inst clrrwi bytes bytes n-lowtag-bits)
     (pseudo-atomic (pa-flag)