handle non-standard slot allocations when updating classes

[sbcl.git] / src / compiler / sparc / call.lisp

diff --git a/src/compiler/sparc/call.lisp b/src/compiler/sparc/call.lisp
index 9c1094d..a4784b1 100644 (file)
--- a/src/compiler/sparc/call.lisp
+++ b/src/compiler/sparc/call.lisp
@@ -124,6 +124,23 @@
       (when nfp
         (inst add 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)
@@ -133,7 +150,7 @@
   (:generator 1
     ;; Make sure the function is aligned, and drop a label pointing to this
     ;; function header.
-    (align n-lowtag-bits)
+    (emit-alignment n-lowtag-bits)
     (trace-table-entry trace-table-fun-prologue)
     (emit-label start-lab)
     ;; Allocate function header.
@@ -380,6 +397,15 @@ default-value-8
               nvals)
   (:temporary (:scs (non-descriptor-reg)) temp))
 
+\f
+;;; This hook in the codegen pass lets us insert code before fall-thru entry
+;;; points, local-call entry points, and tail-call entry points.  The default
+;;; does nothing.
+(defun emit-block-header (start-label trampoline-label fall-thru-p alignp)
+  (declare (ignore fall-thru-p alignp))
+  (when trampoline-label
+    (emit-label trampoline-label))
+  (emit-label start-label))
 
 \f
 ;;;; Local call with unknown values convention return:
@@ -1094,9 +1120,6 @@ default-value-8
   (:translate %more-arg))
 
 ;;; Turn more arg (context, count) into a list.
-(defoptimizer (%listify-rest-args stack-allocate-result) ((&rest args))
-  t)
-
 (define-vop (listify-rest-args)
   (:args (context-arg :target context :scs (descriptor-reg))
          (count-arg :target count :scs (any-reg)))