;;;; the SEGMENT structure
;;; This structure holds the state of the assembler.
-(defstruct segment
+(defstruct (segment (:copier nil))
;; the name of this segment (for debugging output and stuff)
(name "Unnamed" :type simple-base-string)
;; Ordinarily this is a vector where instructions are written. If
(defstruct (instruction
(:include sset-element)
(:conc-name inst-)
- (:constructor make-instruction (number emitter attributes delay)))
+ (:constructor make-instruction (number emitter attributes delay))
+ (:copier nil))
;; The function to envoke to actually emit this instruction. Gets called
;; with the segment as its one argument.
(emitter (required-argument) :type (or null function))
;;;; structure used during output emission
;;; common supertype for all the different kinds of annotations
-(defstruct (annotation (:constructor nil))
+(defstruct (annotation (:constructor nil)
+ (:copier nil))
;; Where in the raw output stream was this annotation emitted.
(index 0 :type index)
;; What position does that correspond to.
(posn nil :type (or index null)))
(defstruct (label (:include annotation)
- (:constructor gen-label ()))
+ (:constructor gen-label ())
+ (:copier nil))
;; (doesn't need any additional information beyond what is in the
;; annotation structure)
)
(:include annotation)
(:conc-name alignment-)
(:predicate alignment-p)
- (:constructor make-alignment (bits size fill-byte)))
+ (:constructor make-alignment (bits size fill-byte))
+ (:copier nil))
;; The minimum number of low-order bits that must be zero.
(bits 0 :type alignment)
;; The amount of filler we are assuming this alignment op will take.
;;; we actually know what label positions, etc. are
(defstruct (back-patch
(:include annotation)
- (:constructor make-back-patch (size function)))
+ (:constructor make-back-patch (size function))
+ (:copier nil))
;; The area effected by this back-patch.
(size 0 :type index)
;; The function to use to generate the real data
(defstruct (chooser
(:include annotation)
(:constructor make-chooser
- (size alignment maybe-shrink worst-case-fun)))
- ;; the worst case size for this chooser. There is this much space allocated
- ;; in the output buffer.
+ (size alignment maybe-shrink worst-case-fun))
+ (:copier nil))
+ ;; the worst case size for this chooser. There is this much space
+ ;; allocated in the output buffer.
(size 0 :type index)
;; the worst case alignment this chooser is guaranteed to preserve
(alignment 0 :type alignment)
- ;; the function to call to determine of we can use a shorter sequence. It
- ;; returns NIL if nothing shorter can be used, or emits that sequence and
- ;; returns T.
+ ;; the function to call to determine of we can use a shorter
+ ;; sequence. It returns NIL if nothing shorter can be used, or emits
+ ;; that sequence and returns T.
(maybe-shrink nil :type function)
- ;; the function to call to generate the worst case sequence. This is used
- ;; when nothing else can be condensed.
+ ;; the function to call to generate the worst case sequence. This is
+ ;; used when nothing else can be condensed.
(worst-case-fun nil :type function))
-;;; This is used internally when we figure out a chooser or alignment doesn't
-;;; really need as much space as we initially gave it.
+;;; This is used internally when we figure out a chooser or alignment
+;;; doesn't really need as much space as we initially gave it.
(defstruct (filler
(:include annotation)
- (:constructor make-filler (bytes)))
+ (:constructor make-filler (bytes))
+ (:copier nil))
;; the number of bytes of filler here
(bytes 0 :type index))
\f
;;;; output functions
-;;; interface: Emit the supplied BYTE to SEGMENT, growing SEGMENT if necessary.
+;;; interface: Emit the supplied BYTE to SEGMENT, growing SEGMENT if
+;;; necessary.
(defun emit-byte (segment byte)
(declare (type segment segment))
;; We could use DECLARE instead of CHECK-TYPE here, but (1) CMU CL's
projects / sbcl.git / blobdiff