(vop move node block x y))
(values))
-;;; If there is any CHECK-xxx template for Type, then return it, otherwise
-;;; return NIL.
+;;; If there is any CHECK-xxx template for TYPE, then return it,
+;;; otherwise return NIL.
(defun type-check-template (type)
(declare (type ctype type))
(multiple-value-bind (check-ptype exact) (primitive-type type)
(template-or-lose name)
nil)))))
-;;; Emit code in Block to check that Value is of the specified Type,
-;;; yielding the checked result in Result. Value and result may be of any
-;;; primitive type. There must be CHECK-xxx VOP for Type. Any other type
-;;; checks should have been converted to an explicit type test.
+;;; Emit code in BLOCK to check that VALUE is of the specified TYPE,
+;;; yielding the checked result in RESULT. VALUE and result may be of
+;;; any primitive type. There must be CHECK-xxx VOP for TYPE. Any
+;;; other type checks should have been converted to an explicit type
+;;; test.
(defun emit-type-check (node block value result type)
(declare (type tn value result) (type node node) (type ir2-block block)
(type ctype type))
(emit-move-template node block (type-check-template type) value result)
(values))
-;;; Allocate an indirect value cell. Maybe do some clever stack allocation
-;;; someday.
-(defevent make-value-cell "Allocate heap value cell for lexical var.")
+;;; Allocate an indirect value cell. Maybe do some clever stack
+;;; allocation someday.
+;;;
+;;; FIXME: DO-MAKE-VALUE-CELL is a bad name, since it doesn't make
+;;; clear what's the distinction between it and the MAKE-VALUE-CELL
+;;; VOP, and since the DO- further connotes iteration, which has
+;;; nothing to do with this. Clearer, more systematic names, anyone?
+(defevent make-value-cell-event "Allocate heap value cell for lexical var.")
(defun do-make-value-cell (node block value res)
- (event make-value-cell node)
+ (event make-value-cell-event node)
(vop make-value-cell node block value res))
\f
;;;; leaf reference
-;;; Return the TN that holds the value of Thing in the environment Env.
-(defun find-in-environment (thing env)
- (declare (type (or nlx-info lambda-var) thing) (type environment env)
- (values tn))
- (or (cdr (assoc thing (ir2-environment-environment (environment-info env))))
+;;; Return the TN that holds the value of THING in the environment ENV.
+(declaim (ftype (function ((or nlx-info lambda-var) physenv) tn)
+ find-in-physenv))
+(defun find-in-physenv (thing physenv)
+ (or (cdr (assoc thing (ir2-physenv-closure (physenv-info physenv))))
(etypecase thing
(lambda-var
- (assert (eq env (lambda-environment (lambda-var-home thing))))
+ ;; I think that a failure of this assertion means that we're
+ ;; trying to access a variable which was improperly closed
+ ;; over. The PHYSENV describes a physical environment. Every
+ ;; variable that a form refers to should either be in its
+ ;; physical environment directly, or grabbed from a
+ ;; surrounding physical environment when it was closed over.
+ ;; The ASSOC expression above finds closed-over variables, so
+ ;; if we fell through the ASSOC expression, it wasn't closed
+ ;; over. Therefore, it must be in our physical environment
+ ;; directly. If instead it is in some other physical
+ ;; environment, then it's bogus for us to reference it here
+ ;; without it being closed over. -- WHN 2001-09-29
+ (aver (eq physenv (lambda-physenv (lambda-var-home thing))))
(leaf-info thing))
(nlx-info
- (assert (eq env (block-environment (nlx-info-target thing))))
- (ir2-nlx-info-home (nlx-info-info thing))))))
+ (aver (eq physenv (block-physenv (nlx-info-target thing))))
+ (ir2-nlx-info-home (nlx-info-info thing))))
+ (bug "~@<~2I~_~S ~_not found in ~_~S~:>" thing physenv)))
-;;; If Leaf already has a constant TN, return that, otherwise make a TN for it.
+;;; If LEAF already has a constant TN, return that, otherwise make a
+;;; TN for it.
(defun constant-tn (leaf)
(declare (type constant leaf))
(or (leaf-info leaf)
(setf (leaf-info leaf)
(make-constant-tn leaf))))
-;;; Return a TN that represents the value of Leaf, or NIL if Leaf isn't
-;;; directly represented by a TN. Env is the environment that the reference is
-;;; done in.
+;;; Return a TN that represents the value of LEAF, or NIL if LEAF
+;;; isn't directly represented by a TN. ENV is the environment that
+;;; the reference is done in.
(defun leaf-tn (leaf env)
- (declare (type leaf leaf) (type environment env))
+ (declare (type leaf leaf) (type physenv env))
(typecase leaf
(lambda-var
(unless (lambda-var-indirect leaf)
- (find-in-environment leaf env)))
+ (find-in-physenv leaf env)))
(constant (constant-tn leaf))
(t nil)))
-;;; Used to conveniently get a handle on a constant TN during IR2
-;;; conversion. Returns a constant TN representing the Lisp object Value.
+;;; This is used to conveniently get a handle on a constant TN during
+;;; IR2 conversion. It returns a constant TN representing the Lisp
+;;; object VALUE.
(defun emit-constant (value)
(constant-tn (find-constant value)))
-;;; Convert a Ref node. The reference must not be delayed.
+;;; Convert a REF node. The reference must not be delayed.
(defun ir2-convert-ref (node block)
(declare (type ref node) (type ir2-block block))
- (let* ((cont (node-cont node))
+ (let* ((lvar (node-lvar node))
(leaf (ref-leaf node))
- (name (leaf-name leaf))
- (locs (continuation-result-tns
- cont (list (primitive-type (leaf-type leaf)))))
+ (locs (lvar-result-tns
+ lvar (list (primitive-type (leaf-type leaf)))))
(res (first locs)))
(etypecase leaf
(lambda-var
- (let ((tn (find-in-environment leaf (node-environment node))))
+ (let ((tn (find-in-physenv leaf (node-physenv node))))
(if (lambda-var-indirect leaf)
(vop value-cell-ref node block tn res)
(emit-move node block tn res))))
(constant
(if (legal-immediate-constant-p leaf)
(emit-move node block (constant-tn leaf) res)
- (let ((name-tn (emit-constant name)))
+ (let* ((name (leaf-source-name leaf))
+ (name-tn (emit-constant name)))
(if (policy node (zerop safety))
(vop fast-symbol-value node block name-tn res)
(vop symbol-value node block name-tn res)))))
(functional
(ir2-convert-closure node block leaf res))
(global-var
- (let ((unsafe (policy node (zerop safety))))
+ (let ((unsafe (policy node (zerop safety)))
+ (name (leaf-source-name leaf)))
(ecase (global-var-kind leaf)
- ((:special :global :constant)
- (assert (symbolp name))
+ ((:special :global)
+ (aver (symbolp name))
(let ((name-tn (emit-constant name)))
(if unsafe
(vop fast-symbol-value node block name-tn res)
(:global-function
(let ((fdefn-tn (make-load-time-constant-tn :fdefinition name)))
(if unsafe
- (vop fdefn-function node block fdefn-tn res)
- (vop safe-fdefn-function node block fdefn-tn res))))))))
- (move-continuation-result node block locs cont))
+ (vop fdefn-fun node block fdefn-tn res)
+ (vop safe-fdefn-fun node block fdefn-tn res))))))))
+ (move-lvar-result node block locs lvar))
+ (values))
+
+;;; some sanity checks for a CLAMBDA passed to IR2-CONVERT-CLOSURE
+(defun assertions-on-ir2-converted-clambda (clambda)
+ ;; This assertion was sort of an experiment. It would be nice and
+ ;; sane and easier to understand things if it were *always* true,
+ ;; but experimentally I observe that it's only *almost* always
+ ;; true. -- WHN 2001-01-02
+ #+nil
+ (aver (eql (lambda-component clambda)
+ (block-component (ir2-block-block ir2-block))))
+ ;; Check for some weirdness which came up in bug
+ ;; 138, 2002-01-02.
+ ;;
+ ;; The MAKE-LOAD-TIME-CONSTANT-TN call above puts an :ENTRY record
+ ;; into the IR2-COMPONENT-CONSTANTS table. The dump-a-COMPONENT
+ ;; code
+ ;; * treats every HANDLEless :ENTRY record into a
+ ;; patch, and
+ ;; * expects every patch to correspond to an
+ ;; IR2-COMPONENT-ENTRIES record.
+ ;; The IR2-COMPONENT-ENTRIES records are set by ENTRY-ANALYZE
+ ;; walking over COMPONENT-LAMBDAS. Bug 138b arose because there
+ ;; was a HANDLEless :ENTRY record which didn't correspond to an
+ ;; IR2-COMPONENT-ENTRIES record. That problem is hard to debug
+ ;; when it's caught at dump time, so this assertion tries to catch
+ ;; it here.
+ (aver (member clambda
+ (component-lambdas (lambda-component clambda))))
+ ;; another bug-138-related issue: COMPONENT-NEW-FUNCTIONALS is
+ ;; used as a queue for stuff pending to do in IR1, and now that
+ ;; we're doing IR2 it should've been completely flushed (but
+ ;; wasn't).
+ (aver (null (component-new-functionals (lambda-component clambda))))
(values))
-;;; Emit code to load a function object representing Leaf into Res. This
-;;; gets interesting when the referenced function is a closure: we must make
-;;; the closure and move the closed over values into it.
+;;; Emit code to load a function object implementing FUNCTIONAL into
+;;; RES. This gets interesting when the referenced function is a
+;;; closure: we must make the closure and move the closed-over values
+;;; into it.
;;;
-;;; Leaf is either a :TOP-LEVEL-XEP functional or the XEP lambda for the called
-;;; function, since local call analysis converts all closure references. If a
-;;; TL-XEP, we know it is not a closure.
+;;; FUNCTIONAL is either a :TOPLEVEL-XEP functional or the XEP lambda
+;;; for the called function, since local call analysis converts all
+;;; closure references. If a :TOPLEVEL-XEP, we know it is not a
+;;; closure.
;;;
-;;; If a closed-over lambda-var has no refs (is deleted), then we don't
-;;; initialize that slot. This can happen with closures over top-level
-;;; variables, where optimization of the closure deleted the variable. Since
-;;; we committed to the closure format when we pre-analyzed the top-level code,
-;;; we just leave an empty slot.
-(defun ir2-convert-closure (node block leaf res)
- (declare (type ref node) (type ir2-block block)
- (type functional leaf) (type tn res))
- (unless (leaf-info leaf)
- (setf (leaf-info leaf) (make-entry-info)))
- (let ((entry (make-load-time-constant-tn :entry leaf))
- (closure (etypecase leaf
+;;; If a closed-over LAMBDA-VAR has no refs (is deleted), then we
+;;; don't initialize that slot. This can happen with closures over
+;;; top level variables, where optimization of the closure deleted the
+;;; variable. Since we committed to the closure format when we
+;;; pre-analyzed the top level code, we just leave an empty slot.
+(defun ir2-convert-closure (ref ir2-block functional res)
+ (declare (type ref ref)
+ (type ir2-block ir2-block)
+ (type functional functional)
+ (type tn res))
+ (aver (not (eql (functional-kind functional) :deleted)))
+ (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
(clambda
- (environment-closure (get-lambda-environment leaf)))
+ (assertions-on-ir2-converted-clambda functional)
+ (physenv-closure (get-lambda-physenv functional)))
(functional
- (assert (eq (functional-kind leaf) :top-level-xep))
+ (aver (eq (functional-kind functional) :toplevel-xep))
nil))))
+
(cond (closure
- (let ((this-env (node-environment node)))
- (vop make-closure node block entry (length closure) res)
+ (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 node block
+ (vop closure-init ref ir2-block
res
- (find-in-environment what this-env)
+ (find-in-physenv what this-env)
n)))))
(t
- (emit-move node block entry res))))
+ (emit-move ref ir2-block entry res))))
(values))
-;;; Convert a Set node. If the node's cont is annotated, then we also
-;;; deliver the value to that continuation. If the var is a lexical variable
-;;; with no refs, then we don't actually set anything, since the variable has
-;;; been deleted.
+;;; Convert a SET node. If the NODE's LVAR is annotated, then we also
+;;; deliver the value to that lvar. If the var is a lexical variable
+;;; with no refs, then we don't actually set anything, since the
+;;; variable has been deleted.
(defun ir2-convert-set (node block)
(declare (type cset node) (type ir2-block block))
- (let* ((cont (node-cont node))
+ (let* ((lvar (node-lvar node))
(leaf (set-var node))
- (val (continuation-tn node block (set-value node)))
- (locs (if (continuation-info cont)
- (continuation-result-tns
- cont (list (primitive-type (leaf-type leaf))))
+ (val (lvar-tn node block (set-value node)))
+ (locs (if lvar
+ (lvar-result-tns
+ lvar (list (primitive-type (leaf-type leaf))))
nil)))
(etypecase leaf
(lambda-var
(when (leaf-refs leaf)
- (let ((tn (find-in-environment leaf (node-environment node))))
+ (let ((tn (find-in-physenv leaf (node-physenv node))))
(if (lambda-var-indirect leaf)
(vop value-cell-set node block tn val)
(emit-move node block val tn)))))
(global-var
(ecase (global-var-kind leaf)
((:special :global)
- (assert (symbolp (leaf-name leaf)))
- (vop set node block (emit-constant (leaf-name leaf)) val)))))
+ (aver (symbolp (leaf-source-name leaf)))
+ (vop set node block (emit-constant (leaf-source-name leaf)) val)))))
(when locs
(emit-move node block val (first locs))
- (move-continuation-result node block locs cont)))
+ (move-lvar-result node block locs lvar)))
(values))
\f
;;;; utilities for receiving fixed values
-;;; Return a TN that can be referenced to get the value of Cont. Cont must
-;;; be LTN-Annotated either as a delayed leaf ref or as a fixed, single-value
-;;; continuation. If a type check is called for, do it.
+;;; Return a TN that can be referenced to get the value of LVAR. LVAR
+;;; must be LTN-ANNOTATED either as a delayed leaf ref or as a fixed,
+;;; single-value lvar.
;;;
-;;; The primitive-type of the result will always be the same as the
-;;; ir2-continuation-primitive-type, ensuring that VOPs are always called with
-;;; TNs that satisfy the operand primitive-type restriction. We may have to
-;;; make a temporary of the desired type and move the actual continuation TN
-;;; into it. This happens when we delete a type check in unsafe code or when
-;;; we locally know something about the type of an argument variable.
-(defun continuation-tn (node block cont)
- (declare (type node node) (type ir2-block block) (type continuation cont))
- (let* ((2cont (continuation-info cont))
- (cont-tn
- (ecase (ir2-continuation-kind 2cont)
+;;; The primitive-type of the result will always be the same as the
+;;; IR2-LVAR-PRIMITIVE-TYPE, ensuring that VOPs are always called with
+;;; TNs that satisfy the operand primitive-type restriction. We may
+;;; have to make a temporary of the desired type and move the actual
+;;; lvar TN into it. This happens when we delete a type check in
+;;; unsafe code or when we locally know something about the type of an
+;;; argument variable.
+(defun lvar-tn (node block lvar)
+ (declare (type node node) (type ir2-block block) (type lvar lvar))
+ (let* ((2lvar (lvar-info lvar))
+ (lvar-tn
+ (ecase (ir2-lvar-kind 2lvar)
(:delayed
- (let ((ref (continuation-use cont)))
- (leaf-tn (ref-leaf ref) (node-environment ref))))
+ (let ((ref (lvar-uses lvar)))
+ (leaf-tn (ref-leaf ref) (node-physenv ref))))
(:fixed
- (assert (= (length (ir2-continuation-locs 2cont)) 1))
- (first (ir2-continuation-locs 2cont)))))
- (ptype (ir2-continuation-primitive-type 2cont)))
-
- (cond ((and (eq (continuation-type-check cont) t)
- (multiple-value-bind (check types)
- (continuation-check-types cont)
- (assert (eq check :simple))
- ;; If the proven type is a subtype of the possibly
- ;; weakened type check then it's always True and is
- ;; flushed.
- (unless (values-subtypep (continuation-proven-type cont)
- (first types))
- (let ((temp (make-normal-tn ptype)))
- (emit-type-check node block cont-tn temp
- (first types))
- temp)))))
- ((eq (tn-primitive-type cont-tn) ptype) cont-tn)
+ (aver (= (length (ir2-lvar-locs 2lvar)) 1))
+ (first (ir2-lvar-locs 2lvar)))))
+ (ptype (ir2-lvar-primitive-type 2lvar)))
+
+ (cond ((eq (tn-primitive-type lvar-tn) ptype) lvar-tn)
(t
(let ((temp (make-normal-tn ptype)))
- (emit-move node block cont-tn temp)
+ (emit-move node block lvar-tn temp)
temp)))))
-;;; Similar to CONTINUATION-TN, but hacks multiple values. We return
-;;; continuations holding the values of Cont with Ptypes as their primitive
-;;; types. Cont must be annotated for the same number of fixed values are
-;;; there are Ptypes.
+;;; This is similar to LVAR-TN, but hacks multiple values. We return
+;;; TNs holding the values of LVAR with PTYPES as their primitive
+;;; types. LVAR must be annotated for the same number of fixed values
+;;; are there are PTYPES.
;;;
-;;; If the continuation has a type check, check the values into temps and
-;;; return the temps. When we have more values than assertions, we move the
-;;; extra values with no check.
-(defun continuation-tns (node block cont ptypes)
+;;; If the lvar has a type check, check the values into temps and
+;;; return the temps. When we have more values than assertions, we
+;;; move the extra values with no check.
+(defun lvar-tns (node block lvar ptypes)
(declare (type node node) (type ir2-block block)
- (type continuation cont) (list ptypes))
- (let* ((locs (ir2-continuation-locs (continuation-info cont)))
+ (type lvar lvar) (list ptypes))
+ (let* ((locs (ir2-lvar-locs (lvar-info lvar)))
(nlocs (length locs)))
- (assert (= nlocs (length ptypes)))
- (if (eq (continuation-type-check cont) t)
- (multiple-value-bind (check types) (continuation-check-types cont)
- (assert (eq check :simple))
- (let ((ntypes (length types)))
- (mapcar #'(lambda (from to-type assertion)
- (let ((temp (make-normal-tn to-type)))
- (if assertion
- (emit-type-check node block from temp assertion)
- (emit-move node block from temp))
- temp))
- locs ptypes
- (if (< ntypes nlocs)
- (append types (make-list (- nlocs ntypes)
- :initial-element nil))
- types))))
- (mapcar #'(lambda (from to-type)
- (if (eq (tn-primitive-type from) to-type)
- from
- (let ((temp (make-normal-tn to-type)))
- (emit-move node block from temp)
- temp)))
- locs
- ptypes))))
+ (aver (= nlocs (length ptypes)))
+
+ (mapcar (lambda (from to-type)
+ (if (eq (tn-primitive-type from) to-type)
+ from
+ (let ((temp (make-normal-tn to-type)))
+ (emit-move node block from temp)
+ temp)))
+ locs
+ ptypes)))
\f
-;;;; utilities for delivering values to continuations
+;;;; utilities for delivering values to lvars
-;;; Return a list of TNs with the specifier Types that can be used as result
-;;; TNs to evaluate an expression into the continuation Cont. This is used
-;;; together with Move-Continuation-Result to deliver fixed values to a
-;;; continuation.
+;;; Return a list of TNs with the specifier TYPES that can be used as
+;;; result TNs to evaluate an expression into LVAR. This is used
+;;; together with MOVE-LVAR-RESULT to deliver fixed values to
+;;; an lvar.
;;;
-;;; If the continuation isn't annotated (meaning the values are discarded)
-;;; or is unknown-values, the then we make temporaries for each supplied value,
-;;; providing a place to compute the result in until we decide what to do with
-;;; it (if anything.)
+;;; If the lvar isn't annotated (meaning the values are discarded) or
+;;; is unknown-values, the then we make temporaries for each supplied
+;;; value, providing a place to compute the result in until we decide
+;;; what to do with it (if anything.)
;;;
-;;; If the continuation is fixed-values, and wants the same number of values
+;;; If the lvar is fixed-values, and wants the same number of values
;;; as the user wants to deliver, then we just return the
-;;; IR2-Continuation-Locs. Otherwise we make a new list padded as necessary by
-;;; discarded TNs. We always return a TN of the specified type, using the
-;;; continuation locs only when they are of the correct type.
-(defun continuation-result-tns (cont types)
- (declare (type continuation cont) (type list types))
- (let ((2cont (continuation-info cont)))
- (if (not 2cont)
- (mapcar #'make-normal-tn types)
- (ecase (ir2-continuation-kind 2cont)
+;;; IR2-LVAR-LOCS. Otherwise we make a new list padded as necessary by
+;;; discarded TNs. We always return a TN of the specified type, using
+;;; the lvar locs only when they are of the correct type.
+(defun lvar-result-tns (lvar types)
+ (declare (type (or lvar null) lvar) (type list types))
+ (if (not lvar)
+ (mapcar #'make-normal-tn types)
+ (let ((2lvar (lvar-info lvar)))
+ (ecase (ir2-lvar-kind 2lvar)
(:fixed
- (let* ((locs (ir2-continuation-locs 2cont))
+ (let* ((locs (ir2-lvar-locs 2lvar))
(nlocs (length locs))
(ntypes (length types)))
(if (and (= nlocs ntypes)
(unless (eq (tn-primitive-type (car loc)) (car type))
(return nil))))
locs
- (mapcar #'(lambda (loc type)
- (if (eq (tn-primitive-type loc) type)
- loc
- (make-normal-tn type)))
+ (mapcar (lambda (loc type)
+ (if (eq (tn-primitive-type loc) type)
+ loc
+ (make-normal-tn type)))
(if (< nlocs ntypes)
(append locs
(mapcar #'make-normal-tn
(declare (type unsigned-byte n))
(collect ((res))
(dotimes (i n)
- (res (standard-argument-location i)))
+ (res (standard-arg-location i)))
(res)))
-;;; Return a list of TNs wired to the standard value passing conventions
-;;; that can be used to receive values according to the unknown-values
-;;; convention. This is used with together Move-Continuation-Result for
-;;; delivering unknown values to a fixed values continuation.
+;;; Return a list of TNs wired to the standard value passing
+;;; conventions that can be used to receive values according to the
+;;; unknown-values convention. This is used with together
+;;; MOVE-LVAR-RESULT for delivering unknown values to a fixed values
+;;; lvar.
;;;
-;;; If the continuation isn't annotated, then we treat as 0-values,
-;;; returning an empty list of temporaries.
+;;; If the lvar isn't annotated, then we treat as 0-values, returning
+;;; an empty list of temporaries.
;;;
-;;; If the continuation is annotated, then it must be :Fixed.
-(defun standard-result-tns (cont)
- (declare (type continuation cont))
- (let ((2cont (continuation-info cont)))
- (if 2cont
- (ecase (ir2-continuation-kind 2cont)
- (:fixed
- (make-standard-value-tns (length (ir2-continuation-locs 2cont)))))
- ())))
-
-;;; Just move each Src TN into the corresponding Dest TN, defaulting any
-;;; unsupplied source values to NIL. We let Emit-Move worry about doing the
-;;; appropriate coercions.
+;;; If the lvar is annotated, then it must be :FIXED.
+(defun standard-result-tns (lvar)
+ (declare (type (or lvar null) lvar))
+ (if lvar
+ (let ((2lvar (lvar-info lvar)))
+ (ecase (ir2-lvar-kind 2lvar)
+ (:fixed
+ (make-standard-value-tns (length (ir2-lvar-locs 2lvar))))))
+ nil))
+
+;;; Just move each SRC TN into the corresponding DEST TN, defaulting
+;;; any unsupplied source values to NIL. We let EMIT-MOVE worry about
+;;; doing the appropriate coercions.
(defun move-results-coerced (node block src dest)
(declare (type node node) (type ir2-block block) (list src dest))
(let ((nsrc (length src))
(ndest (length dest)))
- (mapc #'(lambda (from to)
- (unless (eq from to)
- (emit-move node block from to)))
+ (mapc (lambda (from to)
+ (unless (eq from to)
+ (emit-move node block from to)))
(if (> ndest nsrc)
(append src (make-list (- ndest nsrc)
:initial-element (emit-constant nil)))
dest))
(values))
-;;; If necessary, emit coercion code needed to deliver the
-;;; Results to the specified continuation. Node and block provide context for
-;;; emitting code. Although usually obtained from Standard-Result-TNs or
-;;; Continuation-Result-TNs, Results my be a list of any type or number of TNs.
+;;; Move each SRC TN into the corresponding DEST TN, checking types
+;;; and defaulting any unsupplied source values to NIL
+(defun move-results-checked (node block src dest types)
+ (declare (type node node) (type ir2-block block) (list src dest types))
+ (let ((nsrc (length src))
+ (ndest (length dest))
+ (ntypes (length types)))
+ (mapc (lambda (from to type)
+ (if type
+ (emit-type-check node block from to type)
+ (emit-move node block from to)))
+ (if (> ndest nsrc)
+ (append src (make-list (- ndest nsrc)
+ :initial-element (emit-constant nil)))
+ src)
+ dest
+ (if (> ndest ntypes)
+ (append types (make-list (- ndest ntypes)))
+ types)))
+ (values))
+
+;;; If necessary, emit coercion code needed to deliver the RESULTS to
+;;; the specified lvar. NODE and BLOCK provide context for emitting
+;;; code. Although usually obtained from STANDARD-RESULT-TNs or
+;;; LVAR-RESULT-TNs, RESULTS my be a list of any type or
+;;; number of TNs.
;;;
-;;; If the continuation is fixed values, then move the results into the
-;;; continuation locations. If the continuation is unknown values, then do the
-;;; moves into the standard value locations, and use Push-Values to put the
+;;; If the lvar is fixed values, then move the results into the lvar
+;;; locations. If the lvar is unknown values, then do the moves into
+;;; the standard value locations, and use PUSH-VALUES to put the
;;; values on the stack.
-(defun move-continuation-result (node block results cont)
+(defun move-lvar-result (node block results lvar)
(declare (type node node) (type ir2-block block)
- (list results) (type continuation cont))
- (let* ((2cont (continuation-info cont)))
- (when 2cont
- (ecase (ir2-continuation-kind 2cont)
- (:fixed
- (let ((locs (ir2-continuation-locs 2cont)))
- (unless (eq locs results)
- (move-results-coerced node block results locs))))
- (:unknown
- (let* ((nvals (length results))
- (locs (make-standard-value-tns nvals)))
- (move-results-coerced node block results locs)
- (vop* push-values node block
- ((reference-tn-list locs nil))
- ((reference-tn-list (ir2-continuation-locs 2cont) t))
- nvals))))))
+ (list results) (type (or lvar null) lvar))
+ (when lvar
+ (let ((2lvar (lvar-info lvar)))
+ (ecase (ir2-lvar-kind 2lvar)
+ (:fixed
+ (let ((locs (ir2-lvar-locs 2lvar)))
+ (unless (eq locs results)
+ (move-results-coerced node block results locs))))
+ (:unknown
+ (let* ((nvals (length results))
+ (locs (make-standard-value-tns nvals)))
+ (move-results-coerced node block results locs)
+ (vop* push-values node block
+ ((reference-tn-list locs nil))
+ ((reference-tn-list (ir2-lvar-locs 2lvar) t))
+ nvals))))))
(values))
+
+;;; CAST
+(defun ir2-convert-cast (node block)
+ (declare (type cast node)
+ (type ir2-block block))
+ (binding* ((lvar (node-lvar node) :exit-if-null)
+ (2lvar (lvar-info lvar))
+ (value (cast-value node))
+ (2value (lvar-info value)))
+ (cond ((eq (ir2-lvar-kind 2lvar) :unused))
+ ((eq (ir2-lvar-kind 2lvar) :unknown)
+ (aver (eq (ir2-lvar-kind 2value) :unknown))
+ (aver (not (cast-type-check node)))
+ (move-results-coerced node block
+ (ir2-lvar-locs 2value)
+ (ir2-lvar-locs 2lvar)))
+ ((eq (ir2-lvar-kind 2lvar) :fixed)
+ (aver (eq (ir2-lvar-kind 2value) :fixed))
+ (if (cast-type-check node)
+ (move-results-checked node block
+ (ir2-lvar-locs 2value)
+ (ir2-lvar-locs 2lvar)
+ (multiple-value-bind (check types)
+ (cast-check-types node nil)
+ (aver (eq check :simple))
+ types))
+ (move-results-coerced node block
+ (ir2-lvar-locs 2value)
+ (ir2-lvar-locs 2lvar))))
+ (t (bug "CAST cannot be :DELAYED.")))))
\f
;;;; template conversion
-;;; Build a TN-Refs list that represents access to the values of the
-;;; specified list of continuations Args for Template. Any :CONSTANT arguments
-;;; are returned in the second value as a list rather than being accessed as a
-;;; normal argument. Node and Block provide the context for emitting any
-;;; necessary type-checking code.
-(defun reference-arguments (node block args template)
+;;; Build a TN-REFS list that represents access to the values of the
+;;; specified list of lvars ARGS for TEMPLATE. Any :CONSTANT arguments
+;;; are returned in the second value as a list rather than being
+;;; accessed as a normal argument. NODE and BLOCK provide the context
+;;; for emitting any necessary type-checking code.
+(defun reference-args (node block args template)
(declare (type node node) (type ir2-block block) (list args)
(type template template))
(collect ((info-args))
(let ((type (first types))
(arg (first args)))
(if (and (consp type) (eq (car type) ':constant))
- (info-args (continuation-value arg))
- (let ((ref (reference-tn (continuation-tn node block arg) nil)))
+ (info-args (lvar-value arg))
+ (let ((ref (reference-tn (lvar-tn node block arg) nil)))
(if last
(setf (tn-ref-across last) ref)
(setf first ref))
(values (the (or tn-ref null) first) (info-args)))))
-;;; Convert a conditional template. We try to exploit any drop-through, but
-;;; emit an unconditional branch afterward if we fail. Not-P is true if the
-;;; sense of the Template's test should be negated.
+;;; Convert a conditional template. We try to exploit any
+;;; drop-through, but emit an unconditional branch afterward if we
+;;; fail. NOT-P is true if the sense of the TEMPLATE's test should be
+;;; negated.
(defun ir2-convert-conditional (node block template args info-args if not-p)
(declare (type node node) (type ir2-block block)
(type template template) (type (or tn-ref null) args)
(list info-args) (type cif if) (type boolean not-p))
- (assert (= (template-info-arg-count template) (+ (length info-args) 2)))
+ (aver (= (template-info-arg-count template) (+ (length info-args) 2)))
(let ((consequent (if-consequent if))
(alternative (if-alternative if)))
(cond ((drop-thru-p if consequent)
(defun ir2-convert-if (node block)
(declare (type ir2-block block) (type cif node))
(let* ((test (if-test node))
- (test-ref (reference-tn (continuation-tn node block test) nil))
+ (test-ref (reference-tn (lvar-tn node block test) nil))
(nil-ref (reference-tn (emit-constant nil) nil)))
(setf (tn-ref-across test-ref) nil-ref)
(ir2-convert-conditional node block (template-or-lose 'if-eq)
test-ref () node t)))
;;; Return a list of primitive-types that we can pass to
-;;; CONTINUATION-RESULT-TNS describing the result types we want for a template
-;;; call. We duplicate here the determination of output type that was done in
-;;; initially selecting the template, so we know that the types we find are
-;;; allowed by the template output type restrictions.
-(defun find-template-result-types (call cont template rtypes)
- (declare (type combination call) (type continuation cont)
+;;; LVAR-RESULT-TNS describing the result types we want for a
+;;; template call. We duplicate here the determination of output type
+;;; that was done in initially selecting the template, so we know that
+;;; the types we find are allowed by the template output type
+;;; restrictions.
+(defun find-template-result-types (call template rtypes)
+ (declare (type combination call)
(type template template) (list rtypes))
(let* ((dtype (node-derived-type call))
- (type (if (and (or (eq (template-policy template) :safe)
- (policy call (= safety 0)))
- (continuation-type-check cont))
- (values-type-intersection
- dtype
- (continuation-asserted-type cont))
- dtype))
+ (type dtype)
(types (mapcar #'primitive-type
(if (values-type-p type)
(append (values-type-required type)
(t
types)))))
-;;; Return a list of TNs usable in a Call to Template delivering values to
-;;; Cont. As an efficiency hack, we pick off the common case where the
-;;; continuation is fixed values and has locations that satisfy the result
-;;; restrictions. This can fail when there is a type check or a values count
-;;; mismatch.
-(defun make-template-result-tns (call cont template rtypes)
- (declare (type combination call) (type continuation cont)
+;;; Return a list of TNs usable in a CALL to TEMPLATE delivering
+;;; values to LVAR. As an efficiency hack, we pick off the common case
+;;; where the LVAR is fixed values and has locations that satisfy the
+;;; result restrictions. This can fail when there is a type check or a
+;;; values count mismatch.
+(defun make-template-result-tns (call lvar template rtypes)
+ (declare (type combination call) (type (or lvar null) lvar)
(type template template) (list rtypes))
- (let ((2cont (continuation-info cont)))
- (if (and 2cont (eq (ir2-continuation-kind 2cont) :fixed))
- (let ((locs (ir2-continuation-locs 2cont)))
+ (let ((2lvar (when lvar (lvar-info lvar))))
+ (if (and 2lvar (eq (ir2-lvar-kind 2lvar) :fixed))
+ (let ((locs (ir2-lvar-locs 2lvar)))
(if (and (= (length rtypes) (length locs))
(do ((loc locs (cdr loc))
(rtype rtypes (cdr rtype)))
:t-ok nil)
(return nil))))
locs
- (continuation-result-tns
- cont
- (find-template-result-types call cont template rtypes))))
- (continuation-result-tns
- cont
- (find-template-result-types call cont template rtypes)))))
-
-;;; Get the operands into TNs, make TN-Refs for them, and then call the
-;;; template emit function.
+ (lvar-result-tns
+ lvar
+ (find-template-result-types call template rtypes))))
+ (lvar-result-tns
+ lvar
+ (find-template-result-types call template rtypes)))))
+
+;;; Get the operands into TNs, make TN-REFs for them, and then call
+;;; the template emit function.
(defun ir2-convert-template (call block)
(declare (type combination call) (type ir2-block block))
(let* ((template (combination-info call))
- (cont (node-cont call))
+ (lvar (node-lvar call))
(rtypes (template-result-types template)))
(multiple-value-bind (args info-args)
- (reference-arguments call block (combination-args call) template)
- (assert (not (template-more-results-type template)))
+ (reference-args call block (combination-args call) template)
+ (aver (not (template-more-results-type template)))
(if (eq rtypes :conditional)
(ir2-convert-conditional call block template args info-args
- (continuation-dest cont) nil)
- (let* ((results (make-template-result-tns call cont template rtypes))
+ (lvar-dest lvar) nil)
+ (let* ((results (make-template-result-tns call lvar template rtypes))
(r-refs (reference-tn-list results t)))
- (assert (= (length info-args)
- (template-info-arg-count template)))
+ (aver (= (length info-args)
+ (template-info-arg-count template)))
(if info-args
(emit-template call block template args r-refs info-args)
(emit-template call block template args r-refs))
- (move-continuation-result call block results cont)))))
+ (move-lvar-result call block results lvar)))))
(values))
-;;; We don't have to do much because operand count checking is done by IR1
-;;; conversion. The only difference between this and the function case of
-;;; IR2-Convert-Template is that there can be codegen-info arguments.
+;;; We don't have to do much because operand count checking is done by
+;;; IR1 conversion. The only difference between this and the function
+;;; case of IR2-CONVERT-TEMPLATE is that there can be codegen-info
+;;; arguments.
(defoptimizer (%%primitive ir2-convert) ((template info &rest args) call block)
- (let* ((template (continuation-value template))
- (info (continuation-value info))
- (cont (node-cont call))
+ (let* ((template (lvar-value template))
+ (info (lvar-value info))
+ (lvar (node-lvar call))
(rtypes (template-result-types template))
- (results (make-template-result-tns call cont template rtypes))
+ (results (make-template-result-tns call lvar template rtypes))
(r-refs (reference-tn-list results t)))
(multiple-value-bind (args info-args)
- (reference-arguments call block (cddr (combination-args call))
- template)
- (assert (not (template-more-results-type template)))
- (assert (not (eq rtypes :conditional)))
- (assert (null info-args))
+ (reference-args call block (cddr (combination-args call)) template)
+ (aver (not (template-more-results-type template)))
+ (aver (not (eq rtypes :conditional)))
+ (aver (null info-args))
(if info
(emit-template call block template args r-refs info)
(emit-template call block template args r-refs))
- (move-continuation-result call block results cont)))
+ (move-lvar-result call block results lvar)))
(values))
\f
;;;; local call
-;;; Convert a let by moving the argument values into the variables. Since a
-;;; a let doesn't have any passing locations, we move the arguments directly
-;;; into the variables. We must also allocate any indirect value cells, since
-;;; there is no function prologue to do this.
+;;; Convert a LET by moving the argument values into the variables.
+;;; Since a LET doesn't have any passing locations, we move the
+;;; arguments directly into the variables. We must also allocate any
+;;; indirect value cells, since there is no function prologue to do
+;;; this.
(defun ir2-convert-let (node block fun)
(declare (type combination node) (type ir2-block block) (type clambda fun))
- (mapc #'(lambda (var arg)
- (when arg
- (let ((src (continuation-tn node block arg))
- (dest (leaf-info var)))
- (if (lambda-var-indirect var)
- (do-make-value-cell node block src dest)
- (emit-move node block src dest)))))
+ (mapc (lambda (var arg)
+ (when arg
+ (let ((src (lvar-tn node block arg))
+ (dest (leaf-info var)))
+ (if (lambda-var-indirect var)
+ (do-make-value-cell node block src dest)
+ (emit-move node block src dest)))))
(lambda-vars fun) (basic-combination-args node))
(values))
-;;; Emit any necessary moves into assignment temps for a local call to Fun.
-;;; We return two lists of TNs: TNs holding the actual argument values, and
-;;; (possibly EQ) TNs that are the actual destination of the arguments. When
-;;; necessary, we allocate temporaries for arguments to preserve parallel
-;;; assignment semantics. These lists exclude unused arguments and include
-;;; implicit environment arguments, i.e. they exactly correspond to the
-;;; arguments passed.
+;;; Emit any necessary moves into assignment temps for a local call to
+;;; FUN. We return two lists of TNs: TNs holding the actual argument
+;;; values, and (possibly EQ) TNs that are the actual destination of
+;;; the arguments. When necessary, we allocate temporaries for
+;;; arguments to preserve parallel assignment semantics. These lists
+;;; exclude unused arguments and include implicit environment
+;;; arguments, i.e. they exactly correspond to the arguments passed.
;;;
-;;; OLD-FP is the TN currently holding the value we want to pass as OLD-FP. If
-;;; null, then the call is to the same environment (an :ASSIGNMENT), so we
-;;; only move the arguments, and leave the environment alone.
+;;; OLD-FP is the TN currently holding the value we want to pass as
+;;; OLD-FP. If null, then the call is to the same environment (an
+;;; :ASSIGNMENT), so we only move the arguments, and leave the
+;;; environment alone.
(defun emit-psetq-moves (node block fun old-fp)
(declare (type combination node) (type ir2-block block) (type clambda fun)
(type (or tn null) old-fp))
- (let* ((called-env (environment-info (lambda-environment fun)))
- (this-1env (node-environment node))
- (actuals (mapcar #'(lambda (x)
- (when x
- (continuation-tn node block x)))
+ (let ((actuals (mapcar (lambda (x)
+ (when x
+ (lvar-tn node block x)))
(combination-args node))))
(collect ((temps)
(locs))
(locs loc))))
(when old-fp
- (dolist (thing (ir2-environment-environment called-env))
- (temps (find-in-environment (car thing) this-1env))
- (locs (cdr thing)))
-
- (temps old-fp)
- (locs (ir2-environment-old-fp called-env)))
+ (let ((this-1env (node-physenv node))
+ (called-env (physenv-info (lambda-physenv fun))))
+ (dolist (thing (ir2-physenv-closure called-env))
+ (temps (find-in-physenv (car thing) this-1env))
+ (locs (cdr thing)))
+ (temps old-fp)
+ (locs (ir2-physenv-old-fp called-env))))
(values (temps) (locs)))))
-;;; A tail-recursive local call is done by emitting moves of stuff into the
-;;; appropriate passing locations. After setting up the args and environment,
-;;; we just move our return-pc into the called function's passing
-;;; location.
+;;; A tail-recursive local call is done by emitting moves of stuff
+;;; into the appropriate passing locations. After setting up the args
+;;; and environment, we just move our return-pc into the called
+;;; function's passing location.
(defun ir2-convert-tail-local-call (node block fun)
(declare (type combination node) (type ir2-block block) (type clambda fun))
- (let ((this-env (environment-info (node-environment node))))
+ (let ((this-env (physenv-info (node-physenv node))))
(multiple-value-bind (temps locs)
- (emit-psetq-moves node block fun (ir2-environment-old-fp this-env))
+ (emit-psetq-moves node block fun (ir2-physenv-old-fp this-env))
- (mapc #'(lambda (temp loc)
- (emit-move node block temp loc))
+ (mapc (lambda (temp loc)
+ (emit-move node block temp loc))
temps locs))
(emit-move node block
- (ir2-environment-return-pc this-env)
- (ir2-environment-return-pc-pass
- (environment-info
- (lambda-environment fun)))))
+ (ir2-physenv-return-pc this-env)
+ (ir2-physenv-return-pc-pass
+ (physenv-info
+ (lambda-physenv fun)))))
(values))
;;; Convert an :ASSIGNMENT call. This is just like a tail local call,
-;;; except that the caller and callee environment are the same, so we don't
-;;; need to mess with the environment locations, return PC, etc.
+;;; except that the caller and callee environment are the same, so we
+;;; don't need to mess with the environment locations, return PC, etc.
(defun ir2-convert-assignment (node block fun)
(declare (type combination node) (type ir2-block block) (type clambda fun))
(multiple-value-bind (temps locs) (emit-psetq-moves node block fun nil)
- (mapc #'(lambda (temp loc)
- (emit-move node block temp loc))
+ (mapc (lambda (temp loc)
+ (emit-move node block temp loc))
temps locs))
(values))
-;;; Do stuff to set up the arguments to a non-tail local call (including
-;;; implicit environment args.) We allocate a frame (returning the FP and
-;;; NFP), and also compute the TN-Refs list for the values to pass and the list
-;;; of passing location TNs.
+;;; Do stuff to set up the arguments to a non-tail local call
+;;; (including implicit environment args.) We allocate a frame
+;;; (returning the FP and NFP), and also compute the TN-REFS list for
+;;; the values to pass and the list of passing location TNs.
(defun ir2-convert-local-call-args (node block fun)
(declare (type combination node) (type ir2-block block) (type clambda fun))
(let ((fp (make-stack-pointer-tn))
(emit-psetq-moves node block fun old-fp)
(vop current-fp node block old-fp)
(vop allocate-frame node block
- (environment-info (lambda-environment fun))
+ (physenv-info (lambda-physenv fun))
fp nfp)
(values fp nfp temps (mapcar #'make-alias-tn locs)))))
-;;; Handle a non-TR known-values local call. We Emit the call, then move
-;;; the results to the continuation's destination.
-(defun ir2-convert-local-known-call (node block fun returns cont start)
+;;; Handle a non-TR known-values local call. We emit the call, then
+;;; move the results to the lvar's destination.
+(defun ir2-convert-local-known-call (node block fun returns lvar start)
(declare (type node node) (type ir2-block block) (type clambda fun)
- (type return-info returns) (type continuation cont)
+ (type return-info returns) (type (or lvar null) lvar)
(type label start))
(multiple-value-bind (fp nfp temps arg-locs)
(ir2-convert-local-call-args node block fun)
(vop* known-call-local node block
(fp nfp (reference-tn-list temps nil))
((reference-tn-list locs t))
- arg-locs (environment-info (lambda-environment fun)) start)
- (move-continuation-result node block locs cont)))
+ arg-locs (physenv-info (lambda-physenv fun)) start)
+ (move-lvar-result node block locs lvar)))
(values))
;;; Handle a non-TR unknown-values local call. We do different things
-;;; depending on what kind of values the continuation wants.
+;;; depending on what kind of values the lvar wants.
;;;
-;;; If Cont is :Unknown, then we use the "Multiple-" variant, directly
-;;; specifying the continuation's Locs as the VOP results so that we don't have
-;;; to do anything after the call.
+;;; If LVAR is :UNKNOWN, then we use the "multiple-" variant, directly
+;;; specifying the lvar's LOCS as the VOP results so that we don't
+;;; have to do anything after the call.
;;;
-;;; Otherwise, we use Standard-Result-Tns to get wired result TNs, and
-;;; then call Move-Continuation-Result to do any necessary type checks or
+;;; Otherwise, we use STANDARD-RESULT-TNS to get wired result TNs, and
+;;; then call MOVE-LVAR-RESULT to do any necessary type checks or
;;; coercions.
-(defun ir2-convert-local-unknown-call (node block fun cont start)
+(defun ir2-convert-local-unknown-call (node block fun lvar start)
(declare (type node node) (type ir2-block block) (type clambda fun)
- (type continuation cont) (type label start))
+ (type (or lvar null) lvar) (type label start))
(multiple-value-bind (fp nfp temps arg-locs)
(ir2-convert-local-call-args node block fun)
- (let ((2cont (continuation-info cont))
- (env (environment-info (lambda-environment fun)))
+ (let ((2lvar (and lvar (lvar-info lvar)))
+ (env (physenv-info (lambda-physenv fun)))
(temp-refs (reference-tn-list temps nil)))
- (if (and 2cont (eq (ir2-continuation-kind 2cont) :unknown))
+ (if (and 2lvar (eq (ir2-lvar-kind 2lvar) :unknown))
(vop* multiple-call-local node block (fp nfp temp-refs)
- ((reference-tn-list (ir2-continuation-locs 2cont) t))
+ ((reference-tn-list (ir2-lvar-locs 2lvar) t))
arg-locs env start)
- (let ((locs (standard-result-tns cont)))
+ (let ((locs (standard-result-tns lvar)))
(vop* call-local node block
(fp nfp temp-refs)
((reference-tn-list locs t))
arg-locs env start (length locs))
- (move-continuation-result node block locs cont)))))
+ (move-lvar-result node block locs lvar)))))
(values))
-;;; Dispatch to the appropriate function, depending on whether we have a
-;;; let, tail or normal call. If the function doesn't return, call it using
-;;; the unknown-value convention. We could compile it as a tail call, but that
-;;; might seem confusing in the debugger.
+;;; Dispatch to the appropriate function, depending on whether we have
+;;; a let, tail or normal call. If the function doesn't return, call
+;;; it using the unknown-value convention. We could compile it as a
+;;; tail call, but that might seem confusing in the debugger.
(defun ir2-convert-local-call (node block)
(declare (type combination node) (type ir2-block block))
- (let* ((fun (ref-leaf (continuation-use (basic-combination-fun node))))
+ (let* ((fun (ref-leaf (lvar-uses (basic-combination-fun node))))
(kind (functional-kind fun)))
(cond ((eq kind :let)
(ir2-convert-let node block fun))
((node-tail-p node)
(ir2-convert-tail-local-call node block fun))
(t
- (let ((start (block-label (node-block (lambda-bind fun))))
+ (let ((start (block-label (lambda-block fun)))
(returns (tail-set-info (lambda-tail-set fun)))
- (cont (node-cont node)))
+ (lvar (node-lvar node)))
(ecase (if returns
(return-info-kind returns)
:unknown)
(:unknown
- (ir2-convert-local-unknown-call node block fun cont start))
+ (ir2-convert-local-unknown-call node block fun lvar start))
(:fixed
(ir2-convert-local-known-call node block fun returns
- cont start)))))))
+ lvar start)))))))
(values))
\f
;;;; full call
-;;; Given a function continuation Fun, return as values a TN holding the
-;;; thing that we call and true if the thing is named (false if it is a
-;;; function). There are two interesting non-named cases:
-;;; -- Known to be a function, no check needed: return the continuation loc.
-;;; -- Not known what it is.
-(defun function-continuation-tn (node block cont)
- (declare (type continuation cont))
- (let ((2cont (continuation-info cont)))
- (if (eq (ir2-continuation-kind 2cont) :delayed)
- (let ((name (continuation-function-name cont t)))
- (assert name)
+;;; Given a function lvar FUN, return (VALUES TN-TO-CALL NAMED-P),
+;;; where TN-TO-CALL is a TN holding the thing that we call NAMED-P is
+;;; true if the thing is named (false if it is a function).
+;;;
+;;; There are two interesting non-named cases:
+;;; -- We know it's a function. No check needed: return the
+;;; lvar LOC.
+;;; -- We don't know what it is.
+(defun fun-lvar-tn (node block lvar)
+ (declare (type lvar lvar))
+ (let ((2lvar (lvar-info lvar)))
+ (if (eq (ir2-lvar-kind 2lvar) :delayed)
+ (let ((name (lvar-fun-name lvar t)))
+ (aver name)
(values (make-load-time-constant-tn :fdefinition name) t))
- (let* ((locs (ir2-continuation-locs 2cont))
+ (let* ((locs (ir2-lvar-locs 2lvar))
(loc (first locs))
- (check (continuation-type-check cont))
(function-ptype (primitive-type-or-lose 'function)))
- (assert (and (eq (ir2-continuation-kind 2cont) :fixed)
- (= (length locs) 1)))
- (cond ((eq (tn-primitive-type loc) function-ptype)
- (assert (not (eq check t)))
- (values loc nil))
- (t
- (let ((temp (make-normal-tn function-ptype)))
- (assert (and (eq (ir2-continuation-primitive-type 2cont)
- function-ptype)
- (eq check t)))
- (emit-type-check node block loc temp
- (specifier-type 'function))
- (values temp nil))))))))
-
-;;; Set up the args to Node in the current frame, and return a tn-ref list
-;;; for the passing locations.
+ (aver (and (eq (ir2-lvar-kind 2lvar) :fixed)
+ (= (length locs) 1)))
+ (aver (eq (tn-primitive-type loc) function-ptype))
+ (values loc nil)))))
+
+;;; Set up the args to NODE in the current frame, and return a TN-REF
+;;; list for the passing locations.
(defun move-tail-full-call-args (node block)
(declare (type combination node) (type ir2-block block))
(let ((args (basic-combination-args node))
(last nil)
(first nil))
(dotimes (num (length args))
- (let ((loc (standard-argument-location num)))
- (emit-move node block (continuation-tn node block (elt args num)) loc)
+ (let ((loc (standard-arg-location num)))
+ (emit-move node block (lvar-tn node block (elt args num)) loc)
(let ((ref (reference-tn loc nil)))
(if last
(setf (tn-ref-across last) ref)
(setq last ref))))
first))
-;;; Move the arguments into the passing locations and do a (possibly named)
-;;; tail call.
+;;; Move the arguments into the passing locations and do a (possibly
+;;; named) tail call.
(defun ir2-convert-tail-full-call (node block)
(declare (type combination node) (type ir2-block block))
- (let* ((env (environment-info (node-environment node)))
+ (let* ((env (physenv-info (node-physenv node)))
(args (basic-combination-args node))
(nargs (length args))
(pass-refs (move-tail-full-call-args node block))
- (old-fp (ir2-environment-old-fp env))
- (return-pc (ir2-environment-return-pc env)))
+ (old-fp (ir2-physenv-old-fp env))
+ (return-pc (ir2-physenv-return-pc env)))
(multiple-value-bind (fun-tn named)
- (function-continuation-tn node block (basic-combination-fun node))
+ (fun-lvar-tn node block (basic-combination-fun node))
(if named
(vop* tail-call-named node block
(fun-tn old-fp return-pc pass-refs)
(values))
-;;; Like IR2-CONVERT-LOCAL-CALL-ARGS, only different.
+;;; like IR2-CONVERT-LOCAL-CALL-ARGS, only different
(defun ir2-convert-full-call-args (node block)
(declare (type combination node) (type ir2-block block))
(let* ((args (basic-combination-args node))
(let ((last nil)
(first nil))
(dotimes (num nargs)
- (locs (standard-argument-location num))
- (let ((ref (reference-tn (continuation-tn node block (elt args num))
+ (locs (standard-arg-location num))
+ (let ((ref (reference-tn (lvar-tn node block (elt args num))
nil)))
(if last
(setf (tn-ref-across last) ref)
(values fp first (locs) nargs)))))
;;; Do full call when a fixed number of values are desired. We make
-;;; Standard-Result-TNs for our continuation, then deliver the result using
-;;; Move-Continuation-Result. We do named or normal call, as appropriate.
+;;; STANDARD-RESULT-TNS for our lvar, then deliver the result using
+;;; MOVE-LVAR-RESULT. We do named or normal call, as appropriate.
(defun ir2-convert-fixed-full-call (node block)
(declare (type combination node) (type ir2-block block))
(multiple-value-bind (fp args arg-locs nargs)
(ir2-convert-full-call-args node block)
- (let* ((cont (node-cont node))
- (locs (standard-result-tns cont))
+ (let* ((lvar (node-lvar node))
+ (locs (standard-result-tns lvar))
(loc-refs (reference-tn-list locs t))
(nvals (length locs)))
(multiple-value-bind (fun-tn named)
- (function-continuation-tn node block (basic-combination-fun node))
+ (fun-lvar-tn node block (basic-combination-fun node))
(if named
(vop* call-named node block (fp fun-tn args) (loc-refs)
arg-locs nargs nvals)
(vop* call node block (fp fun-tn args) (loc-refs)
arg-locs nargs nvals))
- (move-continuation-result node block locs cont))))
+ (move-lvar-result node block locs lvar))))
(values))
;;; Do full call when unknown values are desired.
(declare (type combination node) (type ir2-block block))
(multiple-value-bind (fp args arg-locs nargs)
(ir2-convert-full-call-args node block)
- (let* ((cont (node-cont node))
- (locs (ir2-continuation-locs (continuation-info cont)))
+ (let* ((lvar (node-lvar node))
+ (locs (ir2-lvar-locs (lvar-info lvar)))
(loc-refs (reference-tn-list locs t)))
(multiple-value-bind (fun-tn named)
- (function-continuation-tn node block (basic-combination-fun node))
+ (fun-lvar-tn node block (basic-combination-fun node))
(if named
(vop* multiple-call-named node block (fp fun-tn args) (loc-refs)
arg-locs nargs)
arg-locs nargs)))))
(values))
+;;; stuff to check in PONDER-FULL-CALL
+;;;
+;;; There are some things which are intended always to be optimized
+;;; away by DEFTRANSFORMs and such, and so never compiled into full
+;;; calls. This has been a source of bugs so many times that it seems
+;;; worth listing some of them here so that we can check the list
+;;; whenever we compile a full call.
+;;;
+;;; FIXME: It might be better to represent this property by setting a
+;;; flag in DEFKNOWN, instead of representing it by membership in this
+;;; list.
+(defvar *always-optimized-away*
+ '(;; This should always be DEFTRANSFORMed away, but wasn't in a bug
+ ;; reported to cmucl-imp 2000-06-20.
+ %instance-ref
+ ;; These should always turn into VOPs, but wasn't in a bug which
+ ;; appeared when LTN-POLICY stuff was being tweaked in
+ ;; sbcl-0.6.9.16. in sbcl-0.6.0
+ data-vector-set
+ data-vector-ref))
+
+;;; more stuff to check in PONDER-FULL-CALL
+;;;
;;; These came in handy when troubleshooting cold boot after making
;;; major changes in the package structure: various transforms and
;;; VOPs and stuff got attached to the wrong symbol, so that
#!+sb-show (defvar *show-full-called-fnames-p* nil)
#!+sb-show (defvar *full-called-fnames* (make-hash-table :test 'equal))
-;;; If the call is in a tail recursive position and the return
-;;; convention is standard, then do a tail full call. If one or fewer
-;;; values are desired, then use a single-value call, otherwise use a
-;;; multiple-values call.
-(defun ir2-convert-full-call (node block)
- (declare (type combination node) (type ir2-block block))
-
- (let* ((cont (basic-combination-fun node))
- (fname (continuation-function-name cont t)))
+;;; Do some checks (and store some notes relevant for future checks)
+;;; on a full call:
+;;; * Is this a full call to something we have reason to know should
+;;; never be full called? (Except as of sbcl-0.7.18 or so, we no
+;;; longer try to ensure this behavior when *FAILURE-P* has already
+;;; been detected.)
+;;; * Is this a full call to (SETF FOO) which might conflict with
+;;; a DEFSETF or some such thing elsewhere in the program?
+(defun ponder-full-call (node)
+ (let* ((lvar (basic-combination-fun node))
+ (fname (lvar-fun-name lvar t)))
(declare (type (or symbol cons) fname))
#!+sb-show (unless (gethash fname *full-called-fnames*)
#!+sb-show (when *show-full-called-fnames-p*
(/show "converting full call to named function" fname)
(/show (basic-combination-args node))
- (let ((arg-types (mapcar (lambda (maybe-continuation)
- (when maybe-continuation
+ (/show (policy node speed) (policy node safety))
+ (/show (policy node compilation-speed))
+ (let ((arg-types (mapcar (lambda (lvar)
+ (when lvar
(type-specifier
- (continuation-type
- maybe-continuation))))
+ (lvar-type lvar))))
(basic-combination-args node))))
(/show arg-types)))
+ ;; When illegal code is compiled, all sorts of perverse paths
+ ;; through the compiler can be taken, and it's much harder -- and
+ ;; probably pointless -- to guarantee that always-optimized-away
+ ;; functions are actually optimized away. Thus, we skip the check
+ ;; in that case.
+ (unless *failure-p*
+ (when (memq fname *always-optimized-away*)
+ (/show (policy node speed) (policy node safety))
+ (/show (policy node compilation-speed))
+ (bug "full call to ~S" fname)))
+
(when (consp fname)
- (destructuring-bind (setf stem) fname
- (assert (eq setf 'setf))
- (setf (gethash stem *setf-assumed-fboundp*) t))))
-
- (let ((2cont (continuation-info (node-cont node))))
- (cond ((node-tail-p node)
- (ir2-convert-tail-full-call node block))
- ((and 2cont
- (eq (ir2-continuation-kind 2cont) :unknown))
- (ir2-convert-multiple-full-call node block))
- (t
- (ir2-convert-fixed-full-call node block))))
+ (aver (legal-fun-name-p fname))
+ (destructuring-bind (setfoid &rest stem) fname
+ (when (eq setfoid 'setf)
+ (setf (gethash (car stem) *setf-assumed-fboundp*) t))))))
+;;; If the call is in a tail recursive position and the return
+;;; convention is standard, then do a tail full call. If one or fewer
+;;; values are desired, then use a single-value call, otherwise use a
+;;; multiple-values call.
+(defun ir2-convert-full-call (node block)
+ (declare (type combination node) (type ir2-block block))
+ (ponder-full-call node)
+ (cond ((node-tail-p node)
+ (ir2-convert-tail-full-call node block))
+ ((let ((lvar (node-lvar node)))
+ (and lvar
+ (eq (ir2-lvar-kind (lvar-info lvar)) :unknown)))
+ (ir2-convert-multiple-full-call node block))
+ (t
+ (ir2-convert-fixed-full-call node block)))
(values))
\f
;;;; entering functions
;;; Do all the stuff that needs to be done on XEP entry:
-;;; -- Create frame
-;;; -- Copy any more arg
-;;; -- Set up the environment, accessing any closure variables
+;;; -- Create frame.
+;;; -- Copy any more arg.
+;;; -- Set up the environment, accessing any closure variables.
;;; -- Move args from the standard passing locations to their internal
;;; locations.
(defun init-xep-environment (node block fun)
(declare (type bind node) (type ir2-block block) (type clambda fun))
(let ((start-label (entry-info-offset (leaf-info fun)))
- (env (environment-info (node-environment node))))
- (let ((ef (functional-entry-function fun)))
+ (env (physenv-info (node-physenv node))))
+ (let ((ef (functional-entry-fun fun)))
(cond ((and (optional-dispatch-p ef) (optional-dispatch-more-entry ef))
;; Special case the xep-allocate-frame + copy-more-arg case.
(vop xep-allocate-frame node block start-label t)
(t
;; No more args, so normal entry.
(vop xep-allocate-frame node block start-label nil)))
- (if (ir2-environment-environment env)
+ (if (ir2-physenv-closure env)
(let ((closure (make-normal-tn *backend-t-primitive-type*)))
(vop setup-closure-environment node block start-label closure)
(when (getf (functional-plist ef) :fin-function)
(vop funcallable-instance-lexenv node block closure closure))
(let ((n -1))
- (dolist (loc (ir2-environment-environment env))
+ (dolist (loc (ir2-physenv-closure env))
(vop closure-ref node block closure (incf n) (cdr loc)))))
(vop setup-environment node block start-label)))
- (unless (eq (functional-kind fun) :top-level)
+ (unless (eq (functional-kind fun) :toplevel)
(let ((vars (lambda-vars fun))
(n 0))
(when (leaf-refs (first vars))
- (emit-move node block (make-argument-count-location)
+ (emit-move node block (make-arg-count-location)
(leaf-info (first vars))))
(dolist (arg (rest vars))
(when (leaf-refs arg)
- (let ((pass (standard-argument-location n))
+ (let ((pass (standard-arg-location n))
(home (leaf-info arg)))
(if (lambda-var-indirect arg)
(do-make-value-cell node block pass home)
(incf n))))
(emit-move node block (make-old-fp-passing-location t)
- (ir2-environment-old-fp env)))
+ (ir2-physenv-old-fp env)))
(values))
;;; Emit function prolog code. This is only called on bind nodes for
-;;; functions that allocate environments. All semantics of let calls are
-;;; handled by IR2-Convert-Let.
+;;; functions that allocate environments. All semantics of let calls
+;;; are handled by IR2-CONVERT-LET.
;;;
;;; If not an XEP, all we do is move the return PC from its passing
-;;; location, since in a local call, the caller allocates the frame and sets up
-;;; the arguments.
+;;; location, since in a local call, the caller allocates the frame
+;;; and sets up the arguments.
(defun ir2-convert-bind (node block)
(declare (type bind node) (type ir2-block block))
(let* ((fun (bind-lambda node))
- (env (environment-info (lambda-environment fun))))
- (assert (member (functional-kind fun)
- '(nil :external :optional :top-level :cleanup)))
+ (env (physenv-info (lambda-physenv fun))))
+ (aver (member (functional-kind fun)
+ '(nil :external :optional :toplevel :cleanup)))
- (when (external-entry-point-p fun)
+ (when (xep-p fun)
(init-xep-environment node block fun)
#!+sb-dyncount
(when *collect-dynamic-statistics*
(vop count-me node block *dynamic-counts-tn*
(block-number (ir2-block-block block)))))
- (emit-move node block (ir2-environment-return-pc-pass env)
- (ir2-environment-return-pc env))
+ (emit-move node
+ block
+ (ir2-physenv-return-pc-pass env)
+ (ir2-physenv-return-pc env))
(let ((lab (gen-label)))
- (setf (ir2-environment-environment-start env) lab)
+ (setf (ir2-physenv-environment-start env) lab)
(vop note-environment-start node block lab)))
(values))
;;;; function return
;;; Do stuff to return from a function with the specified values and
-;;; convention. If the return convention is :Fixed and we aren't returning
-;;; from an XEP, then we do a known return (letting representation selection
-;;; insert the correct move-arg VOPs.) Otherwise, we use the unknown-values
-;;; convention. If there is a fixed number of return values, then use Return,
-;;; otherwise use Return-Multiple.
+;;; convention. If the return convention is :FIXED and we aren't
+;;; returning from an XEP, then we do a known return (letting
+;;; representation selection insert the correct move-arg VOPs.)
+;;; Otherwise, we use the unknown-values convention. If there is a
+;;; fixed number of return values, then use RETURN, otherwise use
+;;; RETURN-MULTIPLE.
(defun ir2-convert-return (node block)
(declare (type creturn node) (type ir2-block block))
- (let* ((cont (return-result node))
- (2cont (continuation-info cont))
- (cont-kind (ir2-continuation-kind 2cont))
+ (let* ((lvar (return-result node))
+ (2lvar (lvar-info lvar))
+ (lvar-kind (ir2-lvar-kind 2lvar))
(fun (return-lambda node))
- (env (environment-info (lambda-environment fun)))
- (old-fp (ir2-environment-old-fp env))
- (return-pc (ir2-environment-return-pc env))
+ (env (physenv-info (lambda-physenv fun)))
+ (old-fp (ir2-physenv-old-fp env))
+ (return-pc (ir2-physenv-return-pc env))
(returns (tail-set-info (lambda-tail-set fun))))
(cond
((and (eq (return-info-kind returns) :fixed)
- (not (external-entry-point-p fun)))
- (let ((locs (continuation-tns node block cont
+ (not (xep-p fun)))
+ (let ((locs (lvar-tns node block lvar
(return-info-types returns))))
(vop* known-return node block
(old-fp return-pc (reference-tn-list locs nil))
(nil)
(return-info-locations returns))))
- ((eq cont-kind :fixed)
- (let* ((types (mapcar #'tn-primitive-type (ir2-continuation-locs 2cont)))
- (cont-locs (continuation-tns node block cont types))
- (nvals (length cont-locs))
+ ((eq lvar-kind :fixed)
+ (let* ((types (mapcar #'tn-primitive-type (ir2-lvar-locs 2lvar)))
+ (lvar-locs (lvar-tns node block lvar types))
+ (nvals (length lvar-locs))
(locs (make-standard-value-tns nvals)))
- (mapc #'(lambda (val loc)
- (emit-move node block val loc))
- cont-locs
+ (mapc (lambda (val loc)
+ (emit-move node block val loc))
+ lvar-locs
locs)
(if (= nvals 1)
(vop return-single node block old-fp return-pc (car locs))
(nil)
nvals))))
(t
- (assert (eq cont-kind :unknown))
+ (aver (eq lvar-kind :unknown))
(vop* return-multiple node block
(old-fp return-pc
- (reference-tn-list (ir2-continuation-locs 2cont) nil))
+ (reference-tn-list (ir2-lvar-locs 2lvar) nil))
(nil)))))
(values))
\f
;;;; debugger hooks
-;;; This is used by the debugger to find the top function on the stack. It
-;;; returns the OLD-FP and RETURN-PC for the current function as multiple
-;;; values.
+;;; This is used by the debugger to find the top function on the
+;;; stack. It returns the OLD-FP and RETURN-PC for the current
+;;; function as multiple values.
(defoptimizer (sb!kernel:%caller-frame-and-pc ir2-convert) (() node block)
- (let ((env (environment-info (node-environment node))))
- (move-continuation-result node block
- (list (ir2-environment-old-fp env)
- (ir2-environment-return-pc env))
- (node-cont node))))
+ (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))))
\f
;;;; multiple values
-;;; Almost identical to IR2-Convert-Let. Since LTN annotates the
-;;; continuation for the correct number of values (with the continuation user
-;;; responsible for defaulting), we can just pick them up from the
-;;; continuation.
+;;; 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.
(defun ir2-convert-mv-bind (node block)
(declare (type mv-combination node) (type ir2-block block))
- (let* ((cont (first (basic-combination-args node)))
- (fun (ref-leaf (continuation-use (basic-combination-fun node))))
+ (let* ((lvar (first (basic-combination-args node)))
+ (fun (ref-leaf (lvar-uses (basic-combination-fun node))))
(vars (lambda-vars fun)))
- (assert (eq (functional-kind fun) :mv-let))
- (mapc #'(lambda (src var)
- (when (leaf-refs var)
- (let ((dest (leaf-info var)))
- (if (lambda-var-indirect var)
- (do-make-value-cell node block src dest)
- (emit-move node block src dest)))))
- (continuation-tns node block cont
- (mapcar #'(lambda (x)
- (primitive-type (leaf-type x)))
+ (aver (eq (functional-kind fun) :mv-let))
+ (mapc (lambda (src var)
+ (when (leaf-refs var)
+ (let ((dest (leaf-info var)))
+ (if (lambda-var-indirect var)
+ (do-make-value-cell node block src dest)
+ (emit-move node block src dest)))))
+ (lvar-tns node block lvar
+ (mapcar (lambda (x)
+ (primitive-type (leaf-type x)))
vars))
vars))
(values))
;;; Emit the appropriate fixed value, unknown value or tail variant of
-;;; Call-Variable. Note that we only need to pass the values start for the
-;;; first argument: all the other argument continuation TNs are ignored. This
-;;; is because we require all of the values globs to be contiguous and on stack
-;;; top.
+;;; CALL-VARIABLE. Note that we only need to pass the values start for
+;;; the first argument: all the other argument lvar TNs are
+;;; ignored. This is because we require all of the values globs to be
+;;; contiguous and on stack top.
(defun ir2-convert-mv-call (node block)
(declare (type mv-combination node) (type ir2-block block))
- (assert (basic-combination-args node))
- (let* ((start-cont (continuation-info (first (basic-combination-args node))))
- (start (first (ir2-continuation-locs start-cont)))
+ (aver (basic-combination-args node))
+ (let* ((start-lvar (lvar-info (first (basic-combination-args node))))
+ (start (first (ir2-lvar-locs start-lvar)))
(tails (and (node-tail-p node)
(lambda-tail-set (node-home-lambda node))))
- (cont (node-cont node))
- (2cont (continuation-info cont)))
+ (lvar (node-lvar node))
+ (2lvar (and lvar (lvar-info lvar))))
(multiple-value-bind (fun named)
- (function-continuation-tn node block (basic-combination-fun node))
- (assert (and (not named)
- (eq (ir2-continuation-kind start-cont) :unknown)))
+ (fun-lvar-tn node block (basic-combination-fun node))
+ (aver (and (not named)
+ (eq (ir2-lvar-kind start-lvar) :unknown)))
(cond
(tails
- (let ((env (environment-info (node-environment node))))
+ (let ((env (physenv-info (node-physenv node))))
(vop tail-call-variable node block start fun
- (ir2-environment-old-fp env)
- (ir2-environment-return-pc env))))
- ((and 2cont
- (eq (ir2-continuation-kind 2cont) :unknown))
+ (ir2-physenv-old-fp env)
+ (ir2-physenv-return-pc env))))
+ ((and 2lvar
+ (eq (ir2-lvar-kind 2lvar) :unknown))
(vop* multiple-call-variable node block (start fun nil)
- ((reference-tn-list (ir2-continuation-locs 2cont) t))))
+ ((reference-tn-list (ir2-lvar-locs 2lvar) t))))
(t
- (let ((locs (standard-result-tns cont)))
+ (let ((locs (standard-result-tns lvar)))
(vop* call-variable node block (start fun nil)
((reference-tn-list locs t)) (length locs))
- (move-continuation-result node block locs cont)))))))
-
-;;; Reset the stack pointer to the start of the specified unknown-values
-;;; continuation (discarding it and all values globs on top of it.)
-(defoptimizer (%pop-values ir2-convert) ((continuation) node block)
- (let ((2cont (continuation-info (continuation-value continuation))))
- (assert (eq (ir2-continuation-kind 2cont) :unknown))
+ (move-lvar-result node block locs lvar)))))))
+
+;;; 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-continuation-locs 2cont)))))
+ (first (ir2-lvar-locs 2lvar)))))
-;;; Deliver the values TNs to Cont using Move-Continuation-Result.
+;;; Deliver the values TNs to LVAR using MOVE-LVAR-RESULT.
(defoptimizer (values ir2-convert) ((&rest values) node block)
- (let ((tns (mapcar #'(lambda (x)
- (continuation-tn node block x))
+ (let ((tns (mapcar (lambda (x)
+ (lvar-tn node block x))
values)))
- (move-continuation-result node block tns (node-cont node))))
+ (move-lvar-result node block tns (node-lvar node))))
;;; In the normal case where unknown values are desired, we use the
-;;; Values-List VOP. In the relatively unimportant case of Values-List for a
-;;; fixed number of values, we punt by doing a full call to the Values-List
-;;; function. This gets the full call VOP to deal with defaulting any
-;;; unsupplied values. It seems unworthwhile to optimize this case.
+;;; VALUES-LIST VOP. In the relatively unimportant case of VALUES-LIST
+;;; for a fixed number of values, we punt by doing a full call to the
+;;; VALUES-LIST function. This gets the full call VOP to deal with
+;;; defaulting any unsupplied values. It seems unworthwhile to
+;;; optimize this case.
(defoptimizer (values-list ir2-convert) ((list) node block)
- (let* ((cont (node-cont node))
- (2cont (continuation-info cont)))
- (when 2cont
- (ecase (ir2-continuation-kind 2cont)
- (:fixed (ir2-convert-full-call node block))
- (:unknown
- (let ((locs (ir2-continuation-locs 2cont)))
- (vop* values-list node block
- ((continuation-tn node block list) nil)
- ((reference-tn-list locs t)))))))))
+ (let* ((lvar (node-lvar node))
+ (2lvar (and lvar (lvar-info lvar))))
+ (cond ((and 2lvar
+ (eq (ir2-lvar-kind 2lvar) :unknown))
+ (let ((locs (ir2-lvar-locs 2lvar)))
+ (vop* values-list node block
+ ((lvar-tn node block list) nil)
+ ((reference-tn-list locs t)))))
+ (t (aver (or (not 2lvar) ; i.e. we want to check the argument
+ (eq (ir2-lvar-kind 2lvar) :fixed)))
+ (ir2-convert-full-call node block)))))
(defoptimizer (%more-arg-values ir2-convert) ((context start count) node block)
- (let* ((cont (node-cont node))
- (2cont (continuation-info cont)))
- (when 2cont
- (ecase (ir2-continuation-kind 2cont)
- (:fixed (ir2-convert-full-call node block))
- (:unknown
- (let ((locs (ir2-continuation-locs 2cont)))
- (vop* %more-arg-values node block
- ((continuation-tn node block context)
- (continuation-tn node block start)
- (continuation-tn node block count)
- nil)
- ((reference-tn-list locs t)))))))))
+ (binding* ((lvar (node-lvar node) :exit-if-null)
+ (2lvar (lvar-info lvar)))
+ (ecase (ir2-lvar-kind 2lvar)
+ (:fixed (ir2-convert-full-call node block))
+ (:unknown
+ (let ((locs (ir2-lvar-locs 2lvar)))
+ (vop* %more-arg-values node block
+ ((lvar-tn node block context)
+ (lvar-tn node block start)
+ (lvar-tn node block count)
+ nil)
+ ((reference-tn-list locs t))))))))
\f
;;;; special binding
-;;; Trivial, given our assumption of a shallow-binding implementation.
+;;; This is trivial, given our assumption of a shallow-binding
+;;; implementation.
(defoptimizer (%special-bind ir2-convert) ((var value) node block)
- (let ((name (leaf-name (continuation-value var))))
- (vop bind node block (continuation-tn node block value)
+ (let ((name (leaf-source-name (lvar-value var))))
+ (vop bind node block (lvar-tn node block value)
(emit-constant name))))
(defoptimizer (%special-unbind ir2-convert) ((var) node block)
(vop unbind node block))
-;;; ### Not clear that this really belongs in this file, or should really be
-;;; done this way, but this is the least violation of abstraction in the
-;;; current setup. We don't want to wire shallow-binding assumptions into
-;;; IR1tran.
-(def-ir1-translator progv ((vars vals &body body) start cont)
+;;; ### It's not clear that this really belongs in this file, or
+;;; should really be done this way, but this is the least violation of
+;;; abstraction in the current setup. We don't want to wire
+;;; shallow-binding assumptions into IR1tran.
+(def-ir1-translator progv
+ ((vars vals &body body) start next result)
(ir1-convert
- start cont
- (if (or *converting-for-interpreter* (byte-compiling))
- `(%progv ,vars ,vals #'(lambda () ,@body))
- (once-only ((n-save-bs '(%primitive current-binding-pointer)))
- `(unwind-protect
- (progn
- (mapc #'(lambda (var val)
- (%primitive bind val var))
- ,vars
- ,vals)
- ,@body)
- (%primitive unbind-to-here ,n-save-bs))))))
+ 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))))))
\f
;;;; non-local exit
-;;; Convert a non-local lexical exit. First find the NLX-Info in our
-;;; environment. Note that this is never called on the escape exits for Catch
-;;; and Unwind-Protect, since the escape functions aren't IR2 converted.
+;;; Convert a non-local lexical exit. First find the NLX-INFO in our
+;;; environment. Note that this is never called on the escape exits
+;;; for CATCH and UNWIND-PROTECT, since the escape functions aren't
+;;; IR2 converted.
(defun ir2-convert-exit (node block)
(declare (type exit node) (type ir2-block block))
- (let ((loc (find-in-environment (find-nlx-info (exit-entry node)
- (node-cont node))
- (node-environment node)))
+ (let ((loc (find-in-physenv (find-nlx-info node)
+ (node-physenv node)))
(temp (make-stack-pointer-tn))
(value (exit-value node)))
(vop value-cell-ref node block loc temp)
(if value
- (let ((locs (ir2-continuation-locs (continuation-info value))))
+ (let ((locs (ir2-lvar-locs (lvar-info value))))
(vop unwind node block temp (first locs) (second locs)))
(let ((0-tn (emit-constant 0)))
(vop unwind node block temp 0-tn 0-tn))))
(values))
-;;; Cleanup-point doesn't to anything except prevent the body from being
-;;; entirely deleted.
+;;; %CLEANUP-POINT doesn't do anything except prevent the body from
+;;; being entirely deleted.
(defoptimizer (%cleanup-point ir2-convert) (() node block) node block)
-;;; This function invalidates a lexical exit on exiting from the dynamic
-;;; extent. This is done by storing 0 into the indirect value cell that holds
-;;; the closed unwind block.
+;;; This function invalidates a lexical exit on exiting from the
+;;; dynamic extent. This is done by storing 0 into the indirect value
+;;; cell that holds the closed unwind block.
(defoptimizer (%lexical-exit-breakup ir2-convert) ((info) node block)
(vop value-cell-set node block
- (find-in-environment (continuation-value info) (node-environment node))
+ (find-in-physenv (lvar-value info) (node-physenv node))
(emit-constant 0)))
-;;; We have to do a spurious move of no values to the result continuation so
+;;; We have to do a spurious move of no values to the result lvar so
;;; that lifetime analysis won't get confused.
(defun ir2-convert-throw (node block)
(declare (type mv-combination node) (type ir2-block block))
(let ((args (basic-combination-args node)))
+ (check-catch-tag-type (first args))
(vop* throw node block
- ((continuation-tn node block (first args))
+ ((lvar-tn node block (first args))
(reference-tn-list
- (ir2-continuation-locs (continuation-info (second args)))
+ (ir2-lvar-locs (lvar-info (second args)))
nil))
(nil)))
-
- (move-continuation-result node block () (node-cont node))
+ (move-lvar-result node block () (node-lvar node))
(values))
-;;; Emit code to set up a non-local-exit. Info is the NLX-Info for the
-;;; exit, and Tag is the continuation for the catch tag (if any.) We get at
-;;; the target PC by passing in the label to the vop. The vop is responsible
-;;; for building a return-PC object.
+;;; Emit code to set up a non-local exit. INFO is the NLX-INFO for the
+;;; exit, and TAG is the lvar for the catch tag (if any.) We get at
+;;; the target PC by passing in the label to the vop. The vop is
+;;; responsible for building a return-PC object.
(defun emit-nlx-start (node block info tag)
(declare (type node node) (type ir2-block block) (type nlx-info info)
- (type (or continuation null) tag))
+ (type (or lvar null) tag))
(let* ((2info (nlx-info-info info))
(kind (cleanup-kind (nlx-info-cleanup info)))
- (block-tn (environment-live-tn
+ (block-tn (physenv-live-tn
(make-normal-tn (primitive-type-or-lose 'catch-block))
- (node-environment node)))
+ (node-physenv node)))
(res (make-stack-pointer-tn))
(target-label (ir2-nlx-info-target 2info)))
(ecase kind
(:catch
(vop make-catch-block node block block-tn
- (continuation-tn node block tag) target-label res))
+ (lvar-tn node block tag) target-label res))
((:unwind-protect :block :tagbody)
(vop make-unwind-block node block block-tn target-label res)))
(values))
-;;; Scan each of Entry's exits, setting up the exit for each lexical exit.
+;;; 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 node (node-cont exit))))
+ (let ((info (find-nlx-info exit)))
(when (and info
(member (cleanup-kind (nlx-info-cleanup info))
'(:block :tagbody)))
(values))
;;; Set up the unwind block for these guys.
-(defoptimizer (%catch ir2-convert) ((info-cont tag) node block)
- (emit-nlx-start node block (continuation-value info-cont) tag))
-(defoptimizer (%unwind-protect ir2-convert) ((info-cont cleanup) node block)
- (emit-nlx-start node block (continuation-value info-cont) nil))
-
-;;; Emit the entry code for a non-local exit. We receive values and restore
-;;; dynamic state.
+(defoptimizer (%catch ir2-convert) ((info-lvar tag) node block)
+ (check-catch-tag-type tag)
+ (emit-nlx-start node block (lvar-value info-lvar) tag))
+(defoptimizer (%unwind-protect ir2-convert) ((info-lvar cleanup) node block)
+ (emit-nlx-start node block (lvar-value info-lvar) nil))
+
+;;; Emit the entry code for a non-local exit. We receive values and
+;;; restore dynamic state.
;;;
-;;; In the case of a lexical exit or Catch, we look at the exit continuation's
-;;; kind to determine which flavor of entry VOP to emit. If unknown values,
-;;; emit the xxx-MULTIPLE variant to the continuation locs. If fixed values,
-;;; make the appropriate number of temps in the standard values locations and
-;;; use the other variant, delivering the temps to the continuation using
-;;; Move-Continuation-Result.
+;;; In the case of a lexical exit or CATCH, we look at the exit lvar's
+;;; kind to determine which flavor of entry VOP to emit. If unknown
+;;; values, emit the xxx-MULTIPLE variant to the lvar locs. If fixed
+;;; values, make the appropriate number of temps in the standard
+;;; values locations and use the other variant, delivering the temps
+;;; to the lvar using MOVE-LVAR-RESULT.
;;;
-;;; In the Unwind-Protect case, we deliver the first register argument, the
-;;; argument count and the argument pointer to our continuation as multiple
-;;; values. These values are the block exited to and the values start and
-;;; count.
+;;; In the UNWIND-PROTECT case, we deliver the first register
+;;; argument, the argument count and the argument pointer to our lvar
+;;; as multiple values. These values are the block exited to and the
+;;; values start and count.
;;;
;;; After receiving values, we restore dynamic state. Except in the
-;;; Unwind-Protect case, the values receiving restores the stack pointer. In
-;;; an Unwind-Protect cleanup, we want to leave the stack pointer alone, since
-;;; the thrown values are still out there.
-(defoptimizer (%nlx-entry ir2-convert) ((info-cont) node block)
- (let* ((info (continuation-value info-cont))
- (cont (nlx-info-continuation info))
- (2cont (continuation-info cont))
+;;; UNWIND-PROTECT case, the values receiving restores the stack
+;;; pointer. In an UNWIND-PROTECT cleanup, we want to leave the stack
+;;; 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))
(2info (nlx-info-info info))
(top-loc (ir2-nlx-info-save-sp 2info))
- (start-loc (make-nlx-entry-argument-start-location))
- (count-loc (make-argument-count-location))
+ (start-loc (make-nlx-entry-arg-start-location))
+ (count-loc (make-arg-count-location))
(target (ir2-nlx-info-target 2info)))
(ecase (cleanup-kind (nlx-info-cleanup info))
((:catch :block :tagbody)
- (if (and 2cont (eq (ir2-continuation-kind 2cont) :unknown))
- (vop* nlx-entry-multiple node block
- (top-loc start-loc count-loc nil)
- ((reference-tn-list (ir2-continuation-locs 2cont) t))
- target)
- (let ((locs (standard-result-tns cont)))
- (vop* nlx-entry node block
- (top-loc start-loc count-loc nil)
- ((reference-tn-list locs t))
- target
- (length locs))
- (move-continuation-result node block locs cont))))
+ (let ((2lvar (and lvar (lvar-info lvar))))
+ (if (and 2lvar (eq (ir2-lvar-kind 2lvar) :unknown))
+ (vop* nlx-entry-multiple node block
+ (top-loc start-loc count-loc nil)
+ ((reference-tn-list (ir2-lvar-locs 2lvar) t))
+ target)
+ (let ((locs (standard-result-tns lvar)))
+ (vop* nlx-entry node block
+ (top-loc start-loc count-loc nil)
+ ((reference-tn-list locs t))
+ target
+ (length locs))
+ (move-lvar-result node block locs lvar)))))
(:unwind-protect
- (let ((block-loc (standard-argument-location 0)))
+ (let ((block-loc (standard-arg-location 0)))
(vop uwp-entry node block target block-loc start-loc count-loc)
- (move-continuation-result
+ (move-lvar-result
node block
(list block-loc start-loc count-loc)
- cont))))
+ lvar))))
#!+sb-dyncount
(when *collect-dynamic-statistics*
\f
;;;; n-argument functions
-(macrolet ((frob (name)
+(macrolet ((def (name)
`(defoptimizer (,name ir2-convert) ((&rest args) node block)
(let* ((refs (move-tail-full-call-args node block))
- (cont (node-cont node))
- (res (continuation-result-tns
- cont
+ (lvar (node-lvar node))
+ (res (lvar-result-tns
+ lvar
(list (primitive-type (specifier-type 'list))))))
(vop* ,name node block (refs) ((first res) nil)
(length args))
- (move-continuation-result node block res cont)))))
- (frob list)
- (frob list*))
-\f
-;;;; structure accessors
-;;;;
-;;;; These guys have to bizarrely determine the slot offset by looking at the
-;;;; called function.
-
-(defoptimizer (%slot-accessor ir2-convert) ((str) node block)
- (let* ((cont (node-cont node))
- (res (continuation-result-tns cont
- (list *backend-t-primitive-type*))))
- (vop instance-ref node block
- (continuation-tn node block str)
- (dsd-index
- (slot-accessor-slot
- (ref-leaf
- (continuation-use
- (combination-fun node)))))
- (first res))
- (move-continuation-result node block res cont)))
-
-(defoptimizer (%slot-setter ir2-convert) ((value str) node block)
- (let ((val (continuation-tn node block value)))
- (vop instance-set node block
- (continuation-tn node block str)
- val
- (dsd-index
- (slot-accessor-slot
- (ref-leaf
- (continuation-use
- (combination-fun node))))))
-
- (move-continuation-result node block (list val) (node-cont node))))
+ (move-lvar-result node block res lvar)))))
+ (def list)
+ (def list*))
\f
;;; Convert the code in a component into VOPs.
(defun ir2-convert (component)
(setf (block-number block) num)
#!+sb-dyncount
(when *collect-dynamic-statistics*
- (let ((first-node (continuation-next (block-start block))))
+ (let ((first-node (block-start-node block)))
(unless (or (and (bind-p first-node)
- (external-entry-point-p
- (bind-lambda first-node)))
- (eq (continuation-function-name
- (node-cont first-node))
+ (xep-p (bind-lambda first-node)))
+ (eq (lvar-fun-name
+ (node-lvar first-node))
'%nlx-entry))
(vop count-me
first-node
(values))
;;; If necessary, emit a terminal unconditional branch to go to the
-;;; successor block. If the successor is the component tail, then there isn't
-;;; really any successor, but if the end is an unknown, non-tail call, then we
-;;; emit an error trap just in case the function really does return.
+;;; successor block. If the successor is the component tail, then
+;;; there isn't really any successor, but if the end is an unknown,
+;;; non-tail call, then we emit an error trap just in case the
+;;; function really does return.
(defun finish-ir2-block (block)
(declare (type cblock block))
(let* ((2block (block-info block))
(last (block-last block))
(succ (block-succ block)))
(unless (if-p last)
- (assert (and succ (null (rest succ))))
+ (aver (singleton-p succ))
(let ((target (first succ)))
(cond ((eq target (component-tail (block-component block)))
(when (and (basic-combination-p last)
(eq (basic-combination-kind last) :full))
(let* ((fun (basic-combination-fun last))
- (use (continuation-use fun))
- (name (and (ref-p use) (leaf-name (ref-leaf use)))))
+ (use (lvar-uses fun))
+ (name (and (ref-p use)
+ (leaf-has-source-name-p (ref-leaf use))
+ (leaf-source-name (ref-leaf use)))))
(unless (or (node-tail-p last)
(info :function :info name)
(policy last (zerop safety)))
- (vop nil-function-returned-error last 2block
+ (vop nil-fun-returned-error last 2block
(if name
(emit-constant name)
(multiple-value-bind (tn named)
- (function-continuation-tn last 2block fun)
- (assert (not named))
+ (fun-lvar-tn last 2block fun)
+ (aver (not named))
tn)))))))
((not (eq (ir2-block-next 2block) (block-info target)))
(vop branch last 2block (block-label target)))))))
(defun ir2-convert-block (block)
(declare (type cblock block))
(let ((2block (block-info block)))
- (do-nodes (node cont block)
+ (do-nodes (node lvar block)
(etypecase node
(ref
- (let ((2cont (continuation-info cont)))
- (when (and 2cont
- (not (eq (ir2-continuation-kind 2cont) :delayed)))
- (ir2-convert-ref node 2block))))
+ (when lvar
+ (let ((2lvar (lvar-info lvar)))
+ ;; function REF in a local call is not annotated
+ (when (and 2lvar (not (eq (ir2-lvar-kind 2lvar) :delayed)))
+ (ir2-convert-ref node 2block)))))
(combination
(let ((kind (basic-combination-kind node)))
(case kind
(:full
(ir2-convert-full-call node 2block))
(t
- (let ((fun (function-info-ir2-convert kind)))
+ (let ((fun (fun-info-ir2-convert kind)))
(cond (fun
(funcall fun node 2block))
((eq (basic-combination-info node) :full)
(t
(ir2-convert-template node 2block))))))))
(cif
- (when (continuation-info (if-test node))
+ (when (lvar-info (if-test node))
(ir2-convert-if node 2block)))
(bind
(let ((fun (bind-lambda node)))
(ir2-convert-return node 2block))
(cset
(ir2-convert-set node 2block))
+ (cast
+ (ir2-convert-cast node 2block))
(mv-combination
(cond
- ((eq (basic-combination-kind node) :local)
- (ir2-convert-mv-bind node 2block))
- ((eq (continuation-function-name (basic-combination-fun node))
- '%throw)
- (ir2-convert-throw node 2block))
- (t
- (ir2-convert-mv-call node 2block))))
+ ((eq (basic-combination-kind node) :local)
+ (ir2-convert-mv-bind node 2block))
+ ((eq (lvar-fun-name (basic-combination-fun node))
+ '%throw)
+ (ir2-convert-throw node 2block))
+ (t
+ (ir2-convert-mv-call node 2block))))
(exit
(when (exit-entry node)
(ir2-convert-exit node 2block)))
projects / sbcl.git / blobdiff