X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;ds=inline;f=src%2Fcompiler%2Fhppa%2Fcall.lisp;h=58aab33e6acf0705b7658d3bebd97c8c61bddeff;hb=6d36f2d6954cb79e3c88fef33fe0c3ad63deaea8;hp=02d93ae81cf7751b21e2234d41fc22373101770a;hpb=7aa246fdcbb1da73dd1d5ae38d2d17cd04c5f9b7;p=sbcl.git

diff --git a/src/compiler/hppa/call.lisp b/src/compiler/hppa/call.lisp
index 02d93ae..58aab33 100644
--- a/src/compiler/hppa/call.lisp
+++ b/src/compiler/hppa/call.lisp
@@ -127,6 +127,24 @@
         (inst addi (- (bytes-needed-for-non-descriptor-stack-frame))
               nfp val)))))
 
+;;; Accessing a slot from an earlier stack frame is definite hackery.
+(define-vop (ancestor-frame-ref)
+  (:args (frame-pointer :scs (descriptor-reg))
+         (variable-home-tn :load-if nil))
+  (:results (value :scs (descriptor-reg any-reg)))
+  (:policy :fast-safe)
+  (:generator 4
+    (aver (sc-is variable-home-tn control-stack))
+    (loadw value frame-pointer (tn-offset variable-home-tn))))
+(define-vop (ancestor-frame-set)
+  (:args (frame-pointer :scs (descriptor-reg))
+         (value :scs (descriptor-reg any-reg)))
+  (:results (variable-home-tn :load-if nil))
+  (:policy :fast-safe)
+  (:generator 4
+    (aver (sc-is variable-home-tn control-stack))
+    (storew value frame-pointer (tn-offset variable-home-tn))))
+
 (define-vop (xep-allocate-frame)
   (:info start-lab copy-more-arg-follows)
   (:ignore copy-more-arg-follows)