0.9.2.46:

[sbcl.git] / src / compiler / backend.lisp

diff --git a/src/compiler/backend.lisp b/src/compiler/backend.lisp
index 04c4e35..6449246 100644 (file)
--- a/src/compiler/backend.lisp
+++ b/src/compiler/backend.lisp
@@ -60,10 +60,10 @@
 (defvar *backend-meta-sc-names* (make-hash-table :test 'eq))
 (defvar *backend-meta-sb-names* (make-hash-table :test 'eq))
 (declaim (type hash-table
-              *backend-sc-names*
-              *backend-sb-names*
-              *backend-meta-sc-names*
-              *backend-meta-sb-names*))
+               *backend-sc-names*
+               *backend-sb-names*
+               *backend-meta-sc-names*
+               *backend-meta-sb-names*))
 
 
 ;;; like *SC-NUMBERS*, but updated at meta-compile time
@@ -107,7 +107,7 @@
 (defvar *backend-t-primitive-type*)
 (declaim (type primitive-type *backend-t-primitive-type*))
 
-;;; a hashtable translating from VOP names to the corresponding VOP-Parse
+;;; a hashtable translating from VOP names to the corresponding VOP-PARSE
 ;;; structures. This information is only used at meta-compile time.
 (defvar *backend-parsed-vops* (make-hash-table :test 'eq))
 (declaim (type hash-table *backend-parsed-vops*))
@@ -117,9 +117,9 @@
 (defvar *backend-instruction-flavors* (make-hash-table :test 'equal))
 (defvar *backend-special-arg-types* (make-hash-table :test 'eq))
 (declaim (type hash-table
-              *backend-instruction-formats*
-              *backend-instruction-flavors*
-              *backend-special-arg-types*))
+               *backend-instruction-formats*
+               *backend-instruction-flavors*
+               *backend-special-arg-types*))
 
 ;;; mappings between CTYPE structures and the corresponding predicate.
 ;;; The type->predicate mapping is implemented as an alist because
@@ -133,10 +133,6 @@
 ;;; they haven't been installed yet
 (defvar *backend-internal-errors* nil)
 (declaim (type (or simple-vector null) *backend-internal-errors*))
-
-;;; the maximum number of bytes per page on this system (used by GENESIS)
-(defvar *backend-page-size* 0)
-(declaim (type index *backend-page-size*))
 \f
 ;;;; VM support routines
 
@@ -147,24 +143,24 @@
 (defvar *backend-support-routines*)
 
 (macrolet ((def-vm-support-routines (&rest routines)
-            `(progn
-               (eval-when (:compile-toplevel :load-toplevel :execute)
-                 (defparameter *vm-support-routines* ',routines))
-               (defstruct (vm-support-routines (:copier nil))
-                 ,@(mapcar #'(lambda (routine)
-                               `(,routine nil :type (or function null)))
-                           routines))
-               ,@(mapcar
-                  #'(lambda (name)
-                      `(defun ,name (&rest args)
-                         (apply (or (,(symbolicate "VM-SUPPORT-ROUTINES-"
-                                                   name)
-                                     *backend-support-routines*)
-                                    (error "machine-specific support ~S ~
-                                           routine undefined"
-                                           ',name))
-                                args)))
-                  routines))))
+             `(progn
+                (eval-when (:compile-toplevel :load-toplevel :execute)
+                  (defparameter *vm-support-routines* ',routines))
+                (defstruct (vm-support-routines (:copier nil))
+                  ,@(mapcar (lambda (routine)
+                              `(,routine nil :type (or function null)))
+                            routines))
+                ,@(mapcar
+                   (lambda (name)
+                     `(defun ,name (&rest args)
+                        (apply (or (,(symbolicate "VM-SUPPORT-ROUTINES-"
+                                                  name)
+                                    *backend-support-routines*)
+                                   (error "machine-specific support ~S ~
+                                           routine undefined"
+                                          ',name))
+                               args)))
+                   routines))))
 
   (def-vm-support-routines
 
@@ -180,12 +176,12 @@
     make-call-out-tns
 
     ;; from call.lisp
-    standard-argument-location
+    standard-arg-location
     make-return-pc-passing-location
     make-old-fp-passing-location
     make-old-fp-save-location
     make-return-pc-save-location
-    make-argument-count-location
+    make-arg-count-location
     make-nfp-tn
     make-stack-pointer-tn
     make-number-stack-pointer-tn
@@ -195,7 +191,7 @@
     ;; from nlx.lisp
     make-nlx-sp-tn
     make-dynamic-state-tns
-    make-nlx-entry-argument-start-location
+    make-nlx-entry-arg-start-location
 
     ;; from support.lisp
     generate-call-sequence
@@ -209,17 +205,17 @@
 
 (defmacro !def-vm-support-routine (name ll &body body)
   (unless (member (intern (string name) (find-package "SB!C"))
-                 *vm-support-routines*)
+                  *vm-support-routines*)
     (warn "unknown VM support routine: ~A" name))
   (let ((local-name (symbolicate "IMPL-OF-VM-SUPPORT-ROUTINE-" name)))
     `(progn
        (defun ,local-name ,ll ,@body)
        (setf (,(intern (concatenate 'simple-string
-                                   "VM-SUPPORT-ROUTINES-"
-                                   (string name))
-                      (find-package "SB!C"))
-             *backend-support-routines*)
-            #',local-name))))
+                                    "VM-SUPPORT-ROUTINES-"
+                                    (string name))
+                       (find-package "SB!C"))
+              *backend-support-routines*)
+             #',local-name))))
 
 ;;; the VM support routines
 (defvar *backend-support-routines* (make-vm-support-routines))
@@ -246,9 +242,9 @@ SPARC code in CMUCL,
                    (NOT (BACKEND-FEATUREP :SPARC-64)))))
   ...)
 
-and at the IR2 translation stage, the function #'`(LAMBDA () ,GUARD) would be called. 
+and at the IR2 translation stage, the function #'`(LAMBDA () ,GUARD) would be called.
 
-Until SBCL-0.7pre57, this is translated as 
+Until SBCL-0.7pre57, this is translated as
   (:GUARD #!+(OR :SPARC-V8 (AND :SPARC-V9 (NOT :SPARC-64))) T
           #!-(OR :SPARC-V8 (AND :SPARC-V9 (NOT :SPARC-64))) NIL)
 which means that whether this VOP will ever be used is determined at
@@ -263,8 +259,10 @@ yet an ideal interface, but it does allow for compile-time
 conditionalization.
 |#
 
-;;; The default value of NIL means use only unguarded VOPs.
-(defvar *backend-subfeatures* nil)
+;;; The default value of NIL means use only unguarded VOPs. The
+;;; initial value is customizeable via
+;;; customize-backend-subfeatures.lisp
+(defvar *backend-subfeatures* '#.sb-cold:*shebang-backend-subfeatures*)
 
 ;;; possible *BACKEND-SUBFEATURES* values:
 ;;;