X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fppc%2Fsystem.lisp;h=1482de172cb7c3d0dc7aceea3f31093cdbcf9c58;hb=ef0891e470ff35840def7a5717ede18a58266e76;hp=301da10325ec96dbdced5d5fb123afae94e8b938;hpb=7deecae2d959173eda6a153d490c752c32050a9e;p=sbcl.git

diff --git a/src/compiler/ppc/system.lisp b/src/compiler/ppc/system.lisp
index 301da10..1482de1 100644
--- a/src/compiler/ppc/system.lisp
+++ b/src/compiler/ppc/system.lisp
@@ -217,6 +217,22 @@
   (:generator 1
     (inst unimp pending-interrupt-trap)))
 
+#!+sb-thread
+(defknown current-thread-offset-sap ((unsigned-byte 64))
+  system-area-pointer (flushable))
+
+#!+sb-thread
+(define-vop (current-thread-offset-sap)
+  (:results (sap :scs (sap-reg)))
+  (:result-types system-area-pointer)
+  (:translate current-thread-offset-sap)
+  (:args (n :scs (unsigned-reg) :target sap))
+  (:arg-types unsigned-num)
+  (:policy :fast-safe)
+  (:generator 2
+    (inst slwi n n word-shift)
+    (inst lwzx sap thread-base-tn n)))
+
 (define-vop (halt)
   (:generator 1
     (inst unimp halt-trap)))
@@ -234,3 +250,44 @@
       (inst lwz count count-vector offset)
       (inst addi count count 1)
       (inst stw count count-vector offset))))
+
+;;;; Memory barrier support
+
+#!+memory-barrier-vops
+(define-vop (%compiler-barrier)
+  (:policy :fast-safe)
+  (:translate %compiler-barrier)
+  (:generator 3))
+
+#!+memory-barrier-vops
+(define-vop (%memory-barrier)
+  (:policy :fast-safe)
+  (:translate %memory-barrier)
+  (:generator 3
+     (inst sync)))
+
+#!+memory-barrier-vops
+(define-vop (%read-barrier)
+  (:policy :fast-safe)
+  (:translate %read-barrier)
+  (:generator 3
+     (inst sync)))
+
+#!+memory-barrier-vops
+(define-vop (%write-barrier)
+  (:policy :fast-safe)
+  (:translate %write-barrier)
+  (:generator 3
+    (inst sync)))
+
+#!+memory-barrier-vops
+(define-vop (%data-dependency-barrier)
+  (:policy :fast-safe)
+  (:translate %data-dependency-barrier)
+  (:generator 3))
+
+;;;; Dummy definition for a spin-loop hint VOP
+(define-vop (spin-loop-hint)
+  (:translate spin-loop-hint)
+  (:policy :fast-safe)
+  (:generator 0))