X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fx86-64%2Falloc.lisp;h=f15e19e25f77118e71ec7ba3e4eaa0c372851482;hb=94ea2b2082deaa0331dfb66fa6af6ca12dd8dc83;hp=1e53f95e8d6b012a9ec3a2ca4a17a4d682770601;hpb=a2ff6543c79752bfe42578f794bda1c28167fd10;p=sbcl.git

diff --git a/src/compiler/x86-64/alloc.lisp b/src/compiler/x86-64/alloc.lisp
index 1e53f95..f15e19e 100644
--- a/src/compiler/x86-64/alloc.lisp
+++ b/src/compiler/x86-64/alloc.lisp
@@ -12,6 +12,10 @@
 (in-package "SB!VM")
 
 ;;;; LIST and LIST*
+(defoptimizer (list stack-allocate-result) ((&rest args))
+  (not (null args)))
+(defoptimizer (list* stack-allocate-result) ((&rest args))
+  (not (null (rest args))))
 
 (define-vop (list-or-list*)
   (:args (things :more t))
@@ -40,7 +44,9 @@
 		     (storew reg ,list ,slot list-pointer-lowtag))))
 	     (let ((cons-cells (if star (1- num) num)))
 	       (pseudo-atomic
-		(allocation res (* (pad-data-block cons-size) cons-cells) node)
+		(allocation res (* (pad-data-block cons-size) cons-cells) node
+			    (awhen (sb!c::node-lvar node)
+			      (sb!c::lvar-dynamic-extent it)))
 		(inst lea res
 		      (make-ea :byte :base res :disp list-pointer-lowtag))
 		(move ptr res)
@@ -111,14 +117,13 @@
 (define-vop (make-closure)
   (:args (function :to :save :scs (descriptor-reg)))
   (:info length stack-allocate-p)
-  (:ignore stack-allocate-p)
   (:temporary (:sc any-reg) temp)
   (:results (result :scs (descriptor-reg)))
   (:node-var node)
   (:generator 10
-   (pseudo-atomic
+   (maybe-pseudo-atomic stack-allocate-p
     (let ((size (+ length closure-info-offset)))
-      (allocation result (pad-data-block size) node)
+      (allocation result (pad-data-block size) node stack-allocate-p)
       (inst lea result
 	    (make-ea :byte :base result :disp fun-pointer-lowtag))
       (storew (logior (ash (1- size) n-widetag-bits) closure-header-widetag)
@@ -133,8 +138,8 @@
   (:node-var node)
   (:generator 10
     (with-fixed-allocation
-	(result value-cell-header-widetag value-cell-size node))
-    (storew value result value-cell-value-slot other-pointer-lowtag)))
+	(result value-cell-header-widetag value-cell-size node)
+      (storew value result value-cell-value-slot other-pointer-lowtag))))
 
 ;;;; automatic allocators for primitive objects