Differentiate between object slot initialisation and mutation

[sbcl.git] / src / compiler / generic / vm-ir2tran.lisp

diff --git a/src/compiler/generic/vm-ir2tran.lisp b/src/compiler/generic/vm-ir2tran.lisp
index 0f5f92e..4254f3d 100644 (file)
--- a/src/compiler/generic/vm-ir2tran.lisp
+++ b/src/compiler/generic/vm-ir2tran.lisp
@@ -13,6 +13,7 @@
            sb!vm:instance-header-widetag sb!vm:instance-pointer-lowtag
            nil)
 
+#!+stack-allocatable-fixed-objects
 (defoptimizer (%make-structure-instance stack-allocate-result) ((&rest args) node dx)
   t)
 
@@ -68,7 +69,7 @@
              (macrolet ((make-case ()
                           `(ecase raw-type
                              ((t)
-                              (vop set-slot node block object arg-tn
+                              (vop init-slot node block object arg-tn
                                    name (+ sb!vm:instance-slots-offset slot) lowtag))
                              ,@(mapcar (lambda (rsd)
                                          `(,(sb!kernel::raw-slot-data-raw-type rsd)
@@ -81,11 +82,11 @@
                                        nil))))
                (make-case))))
           (:dd
-           (vop set-slot node block object
+           (vop init-slot node block object
                 (emit-constant (sb!kernel::dd-layout-or-lose slot))
                 name sb!vm:instance-slots-offset lowtag))
           (otherwise
-           (vop set-slot node block object
+           (vop init-slot node block object
                 (ecase kind
                   (:arg
                    (aver args)
@@ -218,13 +219,11 @@
                  node block (list value-tn) (node-lvar node))))))))
 
 ;;; Stack allocation optimizers per platform support
-;;;
-;;; Platforms with stack-allocatable vectors
-#!+(or hppa mips x86 x86-64)
+#!+stack-allocatable-vectors
 (progn
   (defoptimizer (allocate-vector stack-allocate-result)
       ((type length words) node dx)
-    (or (eq dx :truly)
+    (or (eq dx :always-dynamic)
         (zerop (policy node safety))
         ;; a vector object should fit in one page -- otherwise it might go past
         ;; stack guard pages.
@@ -253,7 +252,7 @@
         (annotate-1-value-lvar arg)))))
 
 ;;; ...lists
-#!+(or alpha hppa mips ppc sparc x86 x86-64)
+#!+stack-allocatable-lists
 (progn
   (defoptimizer (list stack-allocate-result) ((&rest args) node dx)
     (declare (ignore node dx))
@@ -266,7 +265,9 @@
     t))
 
 ;;; ...conses
-#!+(or hppa mips x86 x86-64)
-(defoptimizer (cons stack-allocate-result) ((&rest args) node dx)
-  (declare (ignore node dx))
-  t)
+#!+stack-allocatable-fixed-objects
+(progn
+  (defoptimizer (cons stack-allocate-result) ((&rest args) node dx)
+    t)
+  (defoptimizer (%make-complex stack-allocate-result) ((&rest args) node dx)
+    t))