1.0.44.11: ppc: Implement ANCESTOR-FRAME VOPs.

  * This is the PPC version of the "implicit" VALUE-CELL access
for DYNAMIC-EXTENT closures.

diff --git a/src/compiler/ppc/call.lisp b/src/compiler/ppc/call.lisp
index 4029d78..5bd893c 100644 (file)
--- a/src/compiler/ppc/call.lisp
+++ b/src/compiler/ppc/call.lisp
@@ -121,6 +121,24 @@
       (when nfp
         (inst addi val nfp (bytes-needed-for-non-descriptor-stack-frame))))))
 
+;;; 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)

diff --git a/src/compiler/ppc/cell.lisp b/src/compiler/ppc/cell.lisp
index fda746e..c461fe4 100644 (file)
--- a/src/compiler/ppc/cell.lisp
+++ b/src/compiler/ppc/cell.lisp
@@ -435,6 +435,11 @@
 (define-vop (closure-init slot-set)
   (:variant closure-info-offset fun-pointer-lowtag))
 
+(define-vop (closure-init-from-fp)
+  (:args (object :scs (descriptor-reg)))
+  (:info offset)
+  (:generator 4
+    (storew cfp-tn object (+ closure-info-offset offset) fun-pointer-lowtag)))
 \f
 ;;;; Value Cell hackery.
 

diff --git a/version.lisp-expr b/version.lisp-expr
index 7167a54..7fc82ae 100644 (file)
--- a/version.lisp-expr
+++ b/version.lisp-expr
@@ -17,4 +17,4 @@
 ;;; checkins which aren't released. (And occasionally for internal
 ;;; versions, especially for internal versions off the main CVS
 ;;; branch, it gets hairier, e.g. "0.pre7.14.flaky4.13".)
-"1.0.44.10"
+"1.0.44.11"