1.0.37.8: add ATOMIC-DECF, fix WAIT-ON-SEMAPHORE-BUGLET

[sbcl.git] / src / compiler / x86-64 / cell.lisp

diff --git a/src/compiler/x86-64/cell.lisp b/src/compiler/x86-64/cell.lisp
index a5114eb..f282900 100644 (file)
--- a/src/compiler/x86-64/cell.lisp
+++ b/src/compiler/x86-64/cell.lisp
@@ -599,11 +599,11 @@
   (:translate %raw-instance-atomic-incf/word)
   (:policy :fast-safe)
   (:args (object :scs (descriptor-reg))
-         (diff :scs (signed-reg) :target result))
+         (diff :scs (unsigned-reg) :target result))
   (:arg-types * (:constant (load/store-index #.n-word-bytes
                                              #.instance-pointer-lowtag
                                              #.instance-slots-offset))
-              signed-num)
+              unsigned-num)
   (:info index)
   (:temporary (:sc unsigned-reg) tmp)
   (:results (result :scs (unsigned-reg)))