;; the number of trailing arguments to VOP or %PRIMITIVE that we
;; bundle into a list and pass into the emit function. This provides
;; a way to pass uninterpreted stuff directly to the code generator.
- (info-arg-count 0 :type index)
- ;; a function that emits the VOPs for this template. Arguments:
- ;; 1] Node for source context.
- ;; 2] IR2-BLOCK that we place the VOP in.
- ;; 3] This structure.
- ;; 4] Head of argument TN-REF list.
- ;; 5] Head of result TN-REF list.
- ;; 6] If INFO-ARG-COUNT is non-zero, then a list of the magic
- ;; arguments.
- ;;
- ;; Two values are returned: the first and last VOP emitted. This vop
- ;; sequence must be linked into the VOP Next/Prev chain for the
- ;; block. At least one VOP is always emitted.
- (emit-function (missing-arg) :type function))
+ (info-arg-count 0 :type index))
(defprinter (template)
name
arg-types
;; counts as one, and all the more args/results together count as 1.
(num-args 0 :type index)
(num-results 0 :type index)
- ;; a vector of the temporaries the vop needs. See EMIT-GENERIC-VOP
+ ;; a vector of the temporaries the vop needs. See EMIT-VOP
;; in vmdef for information on how the temps are encoded.
(temps nil :type (or null (specializable-vector (unsigned-byte 16))))
;; the order all the refs for this vop should be put in. Each
;;; A FINITE-SB holds information needed by the packing algorithm for
;;; finite SBs.
(def!struct (finite-sb (:include sb))
+ ;; the minimum number of location by which to grow this SB
+ ;; if it is :unbounded
+ (size-increment 1 :type index)
+ ;; current-size must always be a multiple of this. It is assumed
+ ;; to be a power of two.
+ (size-alignment 1 :type index)
;; the number of locations currently allocated in this SB
(current-size 0 :type index)
;; the last location packed in, used by pack to scatter TNs to
;; true if this SC or one of its alternates in in the NUMBER-STACK SB.
(number-stack-p nil :type boolean)
;; alignment restriction. The offset must be an even multiple of this.
+ ;; this must be a power of two.
(alignment 1 :type (and index (integer 1)))
;; a list of locations that we avoid packing in during normal
;; register allocation to ensure that these locations will be free
;; :SAVE-ONCE
;; A TN used for saving a :NORMAL TN across function calls. The
;; lifetime information slots are unitialized: get the original
- ;; TN our of the SAVE-TN slot and use it for conflicts. SAVE-ONCE
+ ;; TN out of the SAVE-TN slot and use it for conflicts. SAVE-ONCE
;; is like :SAVE, except that it is only save once at the single
;; writer of the original TN.
;;
;;; The GLOBAL-CONFLICTS structure represents the conflicts for global
;;; TNs. Each global TN has a list of these structures, one for each
-;;; block that it is live in. In addition to repsenting the result of
+;;; block that it is live in. In addition to representing the result of
;;; lifetime analysis, the global conflicts structure is used during
;;; lifetime analysis to represent the set of TNs live at the start of
;;; the IR2 block.
projects / sbcl.git / blobdiff