;;;; leaf reference
;;; Return the TN that holds the value of THING in the environment ENV.
-(declaim (ftype (function ((or nlx-info lambda-var) physenv) tn)
+(declaim (ftype (function ((or nlx-info lambda-var clambda) physenv) tn)
find-in-physenv))
(defun find-in-physenv (thing physenv)
(or (cdr (assoc thing (ir2-physenv-closure (physenv-info physenv))))
(leaf-info thing))
(nlx-info
(aver (eq physenv (block-physenv (nlx-info-target thing))))
- (ir2-nlx-info-home (nlx-info-info thing))))
+ (ir2-nlx-info-home (nlx-info-info thing)))
+ (clambda
+ (aver (xep-p thing))
+ (entry-info-closure-tn (lambda-info thing))))
(bug "~@<~2I~_~S ~_not found in ~_~S~:>" thing physenv)))
;;; If LEAF already has a constant TN, return that, otherwise make a
(unless (leaf-info functional)
(setf (leaf-info functional)
(make-entry-info :name (functional-debug-name functional))))
- (let ((entry (make-load-time-constant-tn :entry functional))
- (closure (etypecase functional
+ (let ((closure (etypecase functional
(clambda
(assertions-on-ir2-converted-clambda functional)
(physenv-closure (get-lambda-physenv functional)))
nil))))
(cond (closure
- (let ((this-env (node-physenv ref)))
- (vop make-closure ref ir2-block entry (length closure) res)
- (loop for what in closure and n from 0 do
- (unless (and (lambda-var-p what)
- (null (leaf-refs what)))
- (vop closure-init ref ir2-block
- res
- (find-in-physenv what this-env)
- n)))))
+ (let* ((physenv (node-physenv ref))
+ (tn (find-in-physenv functional physenv)))
+ (emit-move ref ir2-block tn res)))
(t
- (emit-move ref ir2-block entry res))))
+ (let ((entry (make-load-time-constant-tn :entry functional)))
+ (emit-move ref ir2-block entry res)))))
+ (values))
+
+(defoptimizer (%allocate-closures ltn-annotate) ((leaves) node ltn-policy)
+ ltn-policy ; a hack to effectively (DECLARE (IGNORE LTN-POLICY))
+ (when (lvar-dynamic-extent leaves)
+ (let ((info (make-ir2-lvar *backend-t-primitive-type*)))
+ (setf (ir2-lvar-kind info) :delayed)
+ (setf (lvar-info leaves) info)
+ #!+stack-grows-upward-not-downward
+ (let ((tn (make-normal-tn *backend-t-primitive-type*)))
+ (setf (ir2-lvar-locs info) (list tn)))
+ #!+stack-grows-downward-not-upward
+ (setf (ir2-lvar-stack-pointer info)
+ (make-stack-pointer-tn)))))
+
+(defoptimizer (%allocate-closures ir2-convert) ((leaves) call 2block)
+ (let ((dx-p (lvar-dynamic-extent leaves))
+ #!+stack-grows-upward-not-downward
+ (first-closure nil))
+ (collect ((delayed))
+ #!+stack-grows-downward-not-upward
+ (when dx-p
+ (vop current-stack-pointer call 2block
+ (ir2-lvar-stack-pointer (lvar-info leaves))))
+ (dolist (leaf (lvar-value leaves))
+ (binding* ((xep (functional-entry-fun leaf) :exit-if-null)
+ (nil (aver (xep-p xep)))
+ (entry-info (lambda-info xep) :exit-if-null)
+ (tn (entry-info-closure-tn entry-info) :exit-if-null)
+ (closure (physenv-closure (get-lambda-physenv xep)))
+ (entry (make-load-time-constant-tn :entry xep)))
+ (let ((this-env (node-physenv call))
+ (leaf-dx-p (and dx-p (leaf-dynamic-extent leaf))))
+ (vop make-closure call 2block entry (length closure)
+ leaf-dx-p tn)
+ #!+stack-grows-upward-not-downward
+ (when (and (not first-closure) leaf-dx-p)
+ (setq first-closure tn))
+ (loop for what in closure and n from 0 do
+ (unless (and (lambda-var-p what)
+ (null (leaf-refs what)))
+ ;; In LABELS a closure may refer to another closure
+ ;; in the same group, so we must be sure that we
+ ;; store a closure only after its creation.
+ ;;
+ ;; TODO: Here is a simple solution: we postpone
+ ;; putting of all closures after all creations
+ ;; (though it may require more registers).
+ (if (lambda-p what)
+ (delayed (list tn (find-in-physenv what this-env) n))
+ (vop closure-init call 2block
+ tn
+ (find-in-physenv what this-env)
+ n)))))))
+ #!+stack-grows-upward-not-downward
+ (when dx-p
+ (emit-move call 2block first-closure
+ (first (ir2-lvar-locs (lvar-info leaves)))))
+ (loop for (tn what n) in (delayed)
+ do (vop closure-init call 2block
+ tn what n))))
(values))
;;; Convert a SET node. If the NODE's LVAR is annotated, then we also
(defun find-template-result-types (call template rtypes)
(declare (type combination call)
(type template template) (list rtypes))
+ (declare (ignore template))
(let* ((dtype (node-derived-type call))
(type dtype)
(types (mapcar #'primitive-type
(r-refs (reference-tn-list results t)))
(aver (= (length info-args)
(template-info-arg-count template)))
+ #!+stack-grows-downward-not-upward
+ (when (and lvar (lvar-dynamic-extent lvar))
+ (vop current-stack-pointer call block
+ (ir2-lvar-stack-pointer (lvar-info lvar))))
(if info-args
(emit-template call block template args r-refs info-args)
(emit-template call block template args r-refs))
;;; lvar LOC.
;;; -- We don't know what it is.
(defun fun-lvar-tn (node block lvar)
+ (declare (ignore node block))
(declare (type lvar lvar))
(let ((2lvar (lvar-info lvar)))
(if (eq (ir2-lvar-kind 2lvar) :delayed)
(defoptimizer (sb!kernel:%caller-frame-and-pc ir2-convert) (() node block)
(let ((ir2-physenv (physenv-info (node-physenv node))))
(move-lvar-result node block
- (list (ir2-physenv-old-fp ir2-physenv)
- (ir2-physenv-return-pc ir2-physenv))
- (node-lvar node))))
+ (list (ir2-physenv-old-fp ir2-physenv)
+ (ir2-physenv-return-pc ir2-physenv))
+ (node-lvar node))))
\f
;;;; multiple values
;;; This is almost identical to IR2-CONVERT-LET. Since LTN annotates
-;;; the lvarinuation for the correct number of values (with the lvar
-;;; user responsible for defaulting), we can just pick them up from
-;;; the lvar.
+;;; the lvar for the correct number of values (with the lvar user
+;;; responsible for defaulting), we can just pick them up from the
+;;; lvar.
(defun ir2-convert-mv-bind (node block)
(declare (type mv-combination node) (type ir2-block block))
(let* ((lvar (first (basic-combination-args node)))
;;; Reset the stack pointer to the start of the specified
;;; unknown-values lvar (discarding it and all values globs on top of
;;; it.)
-(defoptimizer (%pop-values ir2-convert) ((lvar) node block)
- (let ((2lvar (lvar-info (lvar-value lvar))))
- (aver (eq (ir2-lvar-kind 2lvar) :unknown))
- (vop reset-stack-pointer node block
- (first (ir2-lvar-locs 2lvar)))))
+(defoptimizer (%pop-values ir2-convert) ((%lvar) node block)
+ (let* ((lvar (lvar-value %lvar))
+ (2lvar (lvar-info lvar)))
+ (cond ((eq (ir2-lvar-kind 2lvar) :unknown)
+ (vop reset-stack-pointer node block
+ (first (ir2-lvar-locs 2lvar))))
+ ((lvar-dynamic-extent lvar)
+ #!+stack-grows-downward-not-upward
+ (vop reset-stack-pointer node block
+ (ir2-lvar-stack-pointer 2lvar))
+ #!-stack-grows-downward-not-upward
+ (vop %%pop-dx node block
+ (first (ir2-lvar-locs 2lvar))))
+ (t (bug "Trying to pop a not stack-allocated LVAR ~S."
+ lvar)))))
+
+(defoptimizer (%nip-values ir2-convert) ((last-nipped last-preserved
+ &rest moved)
+ node block)
+ (let* ( ;; pointer immediately after the nipped block
+ (after (lvar-value last-nipped))
+ (2after (lvar-info after))
+ ;; pointer to the first nipped word
+ (first (lvar-value last-preserved))
+ (2first (lvar-info first))
+
+ (moved-tns (loop for lvar-ref in moved
+ for lvar = (lvar-value lvar-ref)
+ for 2lvar = (lvar-info lvar)
+ ;when 2lvar
+ collect (first (ir2-lvar-locs 2lvar)))))
+ (aver (or (eq (ir2-lvar-kind 2after) :unknown)
+ (lvar-dynamic-extent after)))
+ (aver (eq (ir2-lvar-kind 2first) :unknown))
+ (when *check-consistency*
+ ;; we cannot move stack-allocated DX objects
+ (dolist (moved-lvar moved)
+ (aver (eq (ir2-lvar-kind (lvar-info (lvar-value moved-lvar)))
+ :unknown))))
+ (flet ((nip-aligned (nipped)
+ (vop* %%nip-values node block
+ (nipped
+ (first (ir2-lvar-locs 2first))
+ (reference-tn-list moved-tns nil))
+ ((reference-tn-list moved-tns t))))
+ #!-stack-grows-downward-not-upward
+ (nip-unaligned (nipped)
+ (vop* %%nip-dx node block
+ (nipped
+ (first (ir2-lvar-locs 2first))
+ (reference-tn-list moved-tns nil))
+ ((reference-tn-list moved-tns t)))))
+ (cond ((eq (ir2-lvar-kind 2after) :unknown)
+ (nip-aligned (first (ir2-lvar-locs 2after))))
+ ((lvar-dynamic-extent after)
+ #!+stack-grows-downward-not-upward
+ (nip-aligned (ir2-lvar-stack-pointer 2after))
+ #!-stack-grows-downward-not-upward
+ (nip-unaligned (ir2-lvar-stack-pointer 2after)))
+ (t
+ (bug "Trying to nip a not stack-allocated LVAR ~S." after))))))
;;; Deliver the values TNs to LVAR using MOVE-LVAR-RESULT.
(defoptimizer (values ir2-convert) ((&rest values) node block)
start next result
(with-unique-names (bind unbind)
(once-only ((n-save-bs '(%primitive current-binding-pointer)))
- `(unwind-protect
- (progn
- (labels ((,unbind (vars)
- (declare (optimize (speed 2) (debug 0)))
- (dolist (var vars)
- (%primitive bind nil var)
- (makunbound var)))
- (,bind (vars vals)
- (declare (optimize (speed 2) (debug 0)))
- (cond ((null vars))
- ((null vals) (,unbind vars))
- (t (%primitive bind
- (car vals)
- (car vars))
- (,bind (cdr vars) (cdr vals))))))
- (,bind ,vars ,vals))
- nil
- ,@body)
- (%primitive unbind-to-here ,n-save-bs))))))
+ `(unwind-protect
+ (progn
+ (labels ((,unbind (vars)
+ (declare (optimize (speed 2) (debug 0)))
+ (dolist (var vars)
+ (%primitive bind nil var)
+ (makunbound var)))
+ (,bind (vars vals)
+ (declare (optimize (speed 2) (debug 0)))
+ (cond ((null vars))
+ ((null vals) (,unbind vars))
+ (t (%primitive bind
+ (car vals)
+ (car vars))
+ (,bind (cdr vars) (cdr vals))))))
+ (,bind ,vars ,vals))
+ nil
+ ,@body)
+ (%primitive unbind-to-here ,n-save-bs))))))
\f
;;;; non-local exit
;;; IR2 converted.
(defun ir2-convert-exit (node block)
(declare (type exit node) (type ir2-block block))
- (let ((loc (find-in-physenv (find-nlx-info node)
+ (let ((loc (find-in-physenv (exit-nlx-info node)
(node-physenv node)))
(temp (make-stack-pointer-tn))
(value (exit-value node)))
;;; Scan each of ENTRY's exits, setting up the exit for each lexical exit.
(defun ir2-convert-entry (node block)
(declare (type entry node) (type ir2-block block))
- (dolist (exit (entry-exits node))
- (let ((info (find-nlx-info exit)))
- (when (and info
- (member (cleanup-kind (nlx-info-cleanup info))
- '(:block :tagbody)))
- (emit-nlx-start node block info nil))))
+ (let ((nlxes '()))
+ (dolist (exit (entry-exits node))
+ (let ((info (exit-nlx-info exit)))
+ (when (and info
+ (not (memq info nlxes))
+ (member (cleanup-kind (nlx-info-cleanup info))
+ '(:block :tagbody)))
+ (push info nlxes)
+ (emit-nlx-start node block info nil)))))
(values))
;;; Set up the unwind block for these guys.
;;; pointer alone, since the thrown values are still out there.
(defoptimizer (%nlx-entry ir2-convert) ((info-lvar) node block)
(let* ((info (lvar-value info-lvar))
- (lvar (nlx-info-lvar info))
+ (lvar (node-lvar node))
(2info (nlx-info-info info))
(top-loc (ir2-nlx-info-save-sp 2info))
(start-loc (make-nlx-entry-arg-start-location))
(res (lvar-result-tns
lvar
(list (primitive-type (specifier-type 'list))))))
+ #!+stack-grows-downward-not-upward
+ (when (and lvar (lvar-dynamic-extent lvar))
+ (vop current-stack-pointer node block
+ (ir2-lvar-stack-pointer (lvar-info lvar))))
(vop* ,name node block (refs) ((first res) nil)
(length args))
(move-lvar-result node block res lvar)))))
(def list)
(def list*))
+
\f
;;; Convert the code in a component into VOPs.
(defun ir2-convert (component)
(ir2-convert-ref node 2block)))))
(combination
(let ((kind (basic-combination-kind node)))
- (case kind
+ (ecase kind
(:local
(ir2-convert-local-call node 2block))
(:full
(ir2-convert-full-call node 2block))
- (t
- (let ((fun (fun-info-ir2-convert kind)))
+ (:known
+ (let* ((info (basic-combination-fun-info node))
+ (fun (fun-info-ir2-convert info)))
(cond (fun
(funcall fun node 2block))
((eq (basic-combination-info node) :full)
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