;;; "Lead-in" Control TRANsfer [to some node]
(def!struct (ctran
- (:make-load-form-fun ignore-it)
- (:constructor make-ctran))
+ (:make-load-form-fun ignore-it)
+ (:constructor make-ctran))
;; an indication of the way that this continuation is currently used
;;
;; :UNUSED
- ;; A continuation for which all control-related slots have the
- ;; default values. A continuation is unused during IR1 conversion
- ;; until it is assigned a block, and may be also be temporarily
- ;; unused during later manipulations of IR1. In a consistent
- ;; state there should never be any mention of :UNUSED
- ;; continuations. NEXT can have a non-null value if the next node
- ;; has already been determined.
+ ;; A continuation for which all control-related slots have the
+ ;; default values. A continuation is unused during IR1 conversion
+ ;; until it is assigned a block, and may be also be temporarily
+ ;; unused during later manipulations of IR1. In a consistent
+ ;; state there should never be any mention of :UNUSED
+ ;; continuations. NEXT can have a non-null value if the next node
+ ;; has already been determined.
;;
;; :BLOCK-START
- ;; The continuation that is the START of BLOCK.
+ ;; The continuation that is the START of BLOCK.
;;
;; :INSIDE-BLOCK
- ;; A continuation that is the NEXT of some node in BLOCK.
+ ;; A continuation that is the NEXT of some node in BLOCK.
(kind :unused :type (member :unused :inside-block :block-start))
;; A NODE which is to be evaluated next. Null only temporary.
(next nil :type (or node null))
(def!method print-object ((x ctran) stream)
(print-unreadable-object (x stream :type t :identity t)
- (format stream " #~D" (cont-num x))))
+ (format stream "~D" (cont-num x))))
;;; Linear VARiable. Multiple-value (possibly of unknown number)
;;; temporal storage.
(def!struct (lvar
- (:make-load-form-fun ignore-it)
- (:constructor make-lvar (&optional dest)))
+ (:make-load-form-fun ignore-it)
+ (:constructor make-lvar (&optional dest)))
;; The node which receives this value. NIL only temporarily.
(dest nil :type (or node null))
;; cached type of this lvar's value. If NIL, then this must be
;; Cached type which is checked by DEST. If NIL, then this must be
;; recomputed: see LVAR-EXTERNALLY-CHECKABLE-TYPE.
(%externally-checkable-type nil :type (or null ctype))
+ ;; if the LVAR value is DYNAMIC-EXTENT, CLEANUP protecting it.
+ (dynamic-extent nil :type (or null cleanup))
;; something or other that the back end annotates this lvar with
(info nil))
(def!method print-object ((x lvar) stream)
(print-unreadable-object (x stream :type t :identity t)
- (format stream " #~D" (cont-num x))))
+ (format stream "~D" (cont-num x))))
-(defstruct (node (:constructor nil)
- (:copier nil))
+(def!struct (node (:constructor nil)
+ (:include sset-element (number (incf *compiler-sset-counter*)))
+ (:copier nil))
;; unique ID for debugging
#!+sb-show (id (new-object-id) :read-only t)
;; True if this node needs to be optimized. This is set to true
;; can null out this slot.
(tail-p nil :type boolean))
-(defstruct (valued-node (:conc-name node-)
- (:include node)
- (:constructor nil)
- (:copier nil))
+(def!struct (valued-node (:conc-name node-)
+ (:include node)
+ (:constructor nil)
+ (:copier nil))
;; the bottom-up derived type for this node.
(derived-type *wild-type* :type ctype)
;; Lvar, receiving the values, produced by this node. May be NIL if
(!def-boolean-attribute block
reoptimize flush-p type-check delete-p type-asserted test-modified)
-;;; FIXME: Tweak so that definitions of e.g. BLOCK-DELETE-P is
-;;; findable by grep for 'def.*block-delete-p'.
-(macrolet ((frob (slot)
- `(defmacro ,(symbolicate "BLOCK-" slot) (block)
- `(block-attributep (block-flags ,block) ,',slot))))
- (frob reoptimize)
- (frob flush-p)
- (frob type-check)
- (frob delete-p)
- (frob type-asserted)
- (frob test-modified))
+(macrolet ((defattr (block-slot)
+ `(defmacro ,block-slot (block)
+ `(block-attributep
+ (block-flags ,block)
+ ,(symbolicate (subseq (string ',block-slot) 6))))))
+ (defattr block-reoptimize)
+ (defattr block-flush-p)
+ (defattr block-type-check)
+ (defattr block-delete-p)
+ (defattr block-type-asserted)
+ (defattr block-test-modified))
;;; The CBLOCK structure represents a basic block. We include
;;; SSET-ELEMENT so that we can have sets of blocks. Initially the
;;; order. This latter numbering also forms the basis of the block
;;; numbering in the debug-info (though that is relative to the start
;;; of the function.)
-(defstruct (cblock (:include sset-element)
- (:constructor make-block (start))
- (:constructor make-block-key)
- (:conc-name block-)
- (:predicate block-p))
+(def!struct (cblock (:include sset-element)
+ (:constructor make-block (start))
+ (:constructor make-block-key)
+ (:conc-name block-)
+ (:predicate block-p))
;; a list of all the blocks that are predecessors/successors of this
;; block. In well-formed IR1, most blocks will have one successor.
;; The only exceptions are:
(prev nil :type (or null cblock))
;; This block's attributes: see above.
(flags (block-attributes reoptimize flush-p type-check type-asserted
- test-modified)
- :type attributes)
+ test-modified)
+ :type attributes)
;; in constraint propagation: list of LAMBDA-VARs killed in this block
;; in copy propagation: list of killed TNs
(kill nil)
(gen nil)
(in nil)
(out nil)
+ ;; Set of all blocks that dominate this block. NIL is interpreted
+ ;; as "all blocks in component".
+ (dominators nil :type (or null sset))
+ ;; the LOOP that this block belongs to
+ (loop nil :type (or null cloop))
+ ;; next block in the loop.
+ (loop-next nil :type (or null cblock))
;; the component this block is in, or NIL temporarily during IR1
;; conversion and in deleted blocks
(component (progn
- (aver-live-component *current-component*)
- *current-component*)
- :type (or component null))
+ (aver-live-component *current-component*)
+ *current-component*)
+ :type (or component null))
;; a flag used by various graph-walking code to determine whether
;; this block has been processed already or what. We make this
;; initially NIL so that FIND-INITIAL-DFO doesn't have to scan the
(flag nil)
;; some kind of info used by the back end
(info nil)
- ;; constraints that hold in this block and its successors by merit
- ;; of being tested by its IF predecessors.
- (test-constraint nil :type (or sset null)))
+ ;; what macroexpansions and source transforms happened "in" this block, used
+ ;; for xref
+ (xrefs nil :type list)
+ ;; Cache the physenv of a block during lifetime analysis. :NONE if
+ ;; no cached value has been stored yet.
+ (physenv-cache :none :type (or null physenv (member :none))))
(def!method print-object ((cblock cblock) stream)
(print-unreadable-object (cblock stream :type t :identity t)
(format stream "~W :START c~W"
;;; The BLOCK-ANNOTATION class is inherited (via :INCLUDE) by
;;; different BLOCK-INFO annotation structures so that code
;;; (specifically control analysis) can be shared.
-(defstruct (block-annotation (:constructor nil)
- (:copier nil))
+(def!struct (block-annotation (:constructor nil)
+ (:copier nil))
;; The IR1 block that this block is in the INFO for.
(block (missing-arg) :type cblock)
;; the next and previous block in emission order (not DFO). This
;;; size of flow analysis problems, this allows back-end data
;;; structures to be reclaimed after the compilation of each
;;; component.
-(defstruct (component (:copier nil)
- (:constructor
- make-component (head tail &aux (last-block tail))))
+(def!struct (component (:copier nil)
+ (:constructor
+ make-component
+ (head
+ tail &aux
+ (last-block tail)
+ (outer-loop (make-loop :kind :outer :head head)))))
;; unique ID for debugging
#!+sb-show (id (new-object-id) :read-only t)
;; the kind of component
;; Between runs of local call analysis there may be some debris of
;; converted or even deleted functions in this list.
(new-functionals () :type list)
- ;; If this is true, then there is stuff in this component that could
- ;; benefit from further IR1 optimization.
- (reoptimize t :type boolean)
+ ;; If this is :MAYBE, then there is stuff in this component that
+ ;; could benefit from further IR1 optimization. T means that
+ ;; reoptimization is necessary.
+ (reoptimize t :type (member nil :maybe t))
;; If this is true, then the control flow in this component was
;; messed up by IR1 optimizations, so the DFO should be recomputed.
(reanalyze nil :type boolean)
;; some sort of name for the code in this component
- (name "<unknown>" :type simple-string)
+ (name "<unknown>" :type t)
;; When I am a child, this is :NO-IR2-YET.
;; In my adulthood, IR2 stores notes to itself here.
;; After I have left the great wheel and am staring into the GC, this
;; on me (e.g. by using me as *CURRENT-COMPONENT*, or by pushing
;; LAMBDAs onto my NEW-FUNCTIONALS, as in sbcl-0.pre7.115).
(info :no-ir2-yet :type (or ir2-component (member :no-ir2-yet :dead)))
- ;; the SOURCE-INFO structure describing where this component was
- ;; compiled from
- (source-info *source-info* :type source-info)
;; count of the number of inline expansions we have done while
;; compiling this component, to detect infinite or exponential
;; blowups
;; inline expansion. Unlike NEW-FUNCTIONALS, this is not disjoint
;; from COMPONENT-LAMBDAS.
(reanalyze-functionals nil :type list)
- (delete-blocks nil :type list))
+ (delete-blocks nil :type list)
+ (nlx-info-generated-p nil :type boolean)
+ ;; this is filled by physical environment analysis
+ (dx-lvars nil :type list)
+ ;; The default LOOP in the component.
+ (outer-loop (missing-arg) :type cloop)
+ ;; The current sset index
+ (sset-number 0 :type fixnum))
(defprinter (component :identity t)
name
#!+sb-show id
(lambda-has-external-references-p clambda)))
(defun component-toplevelish-p (component)
(member (component-kind component)
- '(:toplevel :complex-toplevel)))
+ '(:toplevel :complex-toplevel)))
;;; A CLEANUP structure represents some dynamic binding action. Blocks
;;; are annotated with the current CLEANUP so that dynamic bindings
;;; boundaries by requiring that the exit ctrans initially head their
;;; blocks, and then by not merging blocks when there is a cleanup
;;; change.
-(defstruct (cleanup (:copier nil))
+(def!struct (cleanup (:copier nil))
;; the kind of thing that has to be cleaned up
(kind (missing-arg)
- :type (member :special-bind :catch :unwind-protect :block :tagbody))
+ :type (member :special-bind :catch :unwind-protect
+ :block :tagbody :dynamic-extent))
;; the node that messes things up. This is the last node in the
;; non-messed-up environment. Null only temporarily. This could be
;; deleted due to unreachability.
(mess-up nil :type (or node null))
- ;; a list of all the NLX-INFO structures whose NLX-INFO-CLEANUP is
- ;; this cleanup. This is filled in by physical environment analysis.
- (nlx-info nil :type list))
+ ;; For all kinds, except :DYNAMIC-EXTENT: a list of all the NLX-INFO
+ ;; structures whose NLX-INFO-CLEANUP is this cleanup. This is filled
+ ;; in by physical environment analysis.
+ ;;
+ ;; For :DYNAMIC-EXTENT: a list of all DX LVARs, preserved by this
+ ;; cleanup. This is filled when the cleanup is created (now by
+ ;; locall call analysis) and is rechecked by physical environment
+ ;; analysis. (For closures this is a list of the allocating node -
+ ;; during IR1, and a list of the argument LVAR of the allocator -
+ ;; after physical environment analysis.)
+ (info nil :type list))
(defprinter (cleanup :identity t)
kind
mess-up
- (nlx-info :test nlx-info))
+ (info :test info))
;;; A PHYSENV represents the result of physical environment analysis.
;;;
;;; structure is attached to INFO and used to keep track of
;;; associations between these names and less-abstract things (like
;;; TNs, or eventually stack slots and registers). -- WHN 2001-09-29
-(defstruct (physenv (:copier nil))
+(def!struct (physenv (:copier nil))
;; the function that allocates this physical environment
(lambda (missing-arg) :type clambda :read-only t)
;; This ultimately converges to a list of all the LAMBDA-VARs and
;;; The tail set is somewhat approximate, because it is too early to
;;; be sure which calls will be tail-recursive. Any call that *might*
;;; end up tail-recursive causes TAIL-SET merging.
-(defstruct (tail-set)
+(def!struct (tail-set)
;; a list of all the LAMBDAs in this tail set
(funs nil :type list)
;; our current best guess of the type returned by these functions.
;;; non-local exits. This is effectively an annotation on the
;;; continuation, although it is accessed by searching in the
;;; PHYSENV-NLX-INFO.
-(def!struct (nlx-info (:constructor make-nlx-info
- (cleanup exit &aux (lvar (node-lvar exit))))
- (:make-load-form-fun ignore-it))
+(def!struct (nlx-info
+ (:constructor make-nlx-info (cleanup
+ exit
+ &aux
+ (block (first (block-succ
+ (node-block exit))))))
+ (:make-load-form-fun ignore-it))
;; the cleanup associated with this exit. In a catch or
;; unwind-protect, this is the :CATCH or :UNWIND-PROTECT cleanup,
;; and not the cleanup for the escape block. The CLEANUP-KIND of
;; this thus provides a good indication of what kind of exit is
;; being done.
(cleanup (missing-arg) :type cleanup)
- ;; the continuation exited to (the CONT of the EXIT nodes). If this
- ;; exit is from an escape function (CATCH or UNWIND-PROTECT), then
- ;; physical environment analysis deletes the escape function and
- ;; instead has the %NLX-ENTRY use this continuation.
+ ;; the ``continuation'' exited to (the block, succeeding the EXIT
+ ;; nodes). If this exit is from an escape function (CATCH or
+ ;; UNWIND-PROTECT), then physical environment analysis deletes the
+ ;; escape function and instead has the %NLX-ENTRY use this
+ ;; continuation.
;;
- ;; This slot is primarily an indication of where this exit delivers
- ;; its values to (if any), but it is also used as a sort of name to
- ;; allow us to find the NLX-INFO that corresponds to a given exit.
- ;; For this purpose, the ENTRY must also be used to disambiguate,
- ;; since exits to different places may deliver their result to the
- ;; same continuation.
- (exit (missing-arg) :type exit)
- (lvar (missing-arg) :type (or lvar null))
+ ;; This slot is used as a sort of name to allow us to find the
+ ;; NLX-INFO that corresponds to a given exit. For this purpose, the
+ ;; ENTRY must also be used to disambiguate, since exits to different
+ ;; places may deliver their result to the same continuation.
+ (block (missing-arg) :type cblock)
;; the entry stub inserted by physical environment analysis. This is
;; a block containing a call to the %NLX-ENTRY funny function that
;; has the original exit destination as its successor. Null only
;; temporarily.
(target nil :type (or cblock null))
+ ;; for a lexical exit it determines whether tag existence check is
+ ;; needed
+ (safe-p nil :type boolean)
;; some kind of info used by the back end
info)
(defprinter (nlx-info :identity t)
- exit
+ block
target
info)
\f
;;; allows us to easily substitute one for the other without actually
;;; hacking the flow graph.
(def!struct (leaf (:make-load-form-fun ignore-it)
- (:constructor nil))
+ (:include sset-element (number (incf *compiler-sset-counter*)))
+ (:constructor nil))
;; unique ID for debugging
#!+sb-show (id (new-object-id) :read-only t)
;; (For public access to this slot, use LEAF-SOURCE-NAME.)
;; See also the LEAF-DEBUG-NAME function and the
;; FUNCTIONAL-%DEBUG-NAME slot.
(%source-name (missing-arg)
- :type (or symbol (and cons (satisfies legal-fun-name-p)))
- :read-only t)
+ :type (or symbol (and cons (satisfies legal-fun-name-p)))
+ :read-only t)
;; the type which values of this leaf must have
(type *universal-type* :type ctype)
- ;; where the TYPE information came from:
+ ;; the type which values of this leaf have last been defined to have
+ ;; (but maybe won't have in future, in case of redefinition)
+ (defined-type *universal-type* :type ctype)
+ ;; where the TYPE information came from (in order, from strongest to weakest):
;; :DECLARED, from a declaration.
+ ;; :DEFINED-HERE, from examination of the definition in the same file.
+ ;; :DEFINED, from examination of the definition elsewhere.
+ ;; :DEFINED-METHOD, implicit, piecemeal declarations from CLOS.
;; :ASSUMED, from uses of the object.
- ;; :DEFINED, from examination of the definition.
- ;; FIXME: This should be a named type. (LEAF-WHERE-FROM? Or
- ;; perhaps just WHERE-FROM, since it's not just used in LEAF,
- ;; but also in various DEFINE-INFO-TYPEs in globaldb.lisp,
- ;; and very likely elsewhere too.)
- (where-from :assumed :type (member :declared :assumed :defined))
+ (where-from :assumed :type (member :declared :assumed :defined-here :defined :defined-method))
;; list of the REF nodes for this leaf
(refs () :type list)
;; true if there was ever a REF or SET node for this leaf. This may
;; be true when REFS and SETS are null, since code can be deleted.
(ever-used nil :type boolean)
+ ;; is it declared dynamic-extent, or truly-dynamic-extent?
+ (extent nil :type (member nil :maybe-dynamic :always-dynamic :indefinite))
;; some kind of info used by the back end
(info nil))
+(defun leaf-dynamic-extent (leaf)
+ (let ((extent (leaf-extent leaf)))
+ (unless (member extent '(nil :indefinite))
+ extent)))
+
;;; LEAF name operations
;;;
;;; KLUDGE: wants CLOS..
(defun leaf-has-source-name-p (leaf)
(not (eq (leaf-%source-name leaf)
- '.anonymous.)))
+ '.anonymous.)))
(defun leaf-source-name (leaf)
(aver (leaf-has-source-name-p leaf))
(leaf-%source-name leaf))
;; it looks as though it's never interesting to get debug names
;; from them, so it's moot. -- WHN)
(leaf-source-name leaf)))
+(defun leaf-%debug-name (leaf)
+ (when (functional-p leaf)
+ (functional-%debug-name leaf)))
;;; The CONSTANT structure is used to represent known constant values.
-;;; If NAME is not null, then it is the name of the named constant
-;;; which this leaf corresponds to, otherwise this is an anonymous
-;;; constant.
-(def!struct (constant (:include leaf))
+;;; Since the same constant leaf may be shared between named and anonymous
+;;; constants, %SOURCE-NAME is never used.
+(def!struct (constant (:constructor make-constant (value
+ &aux
+ (type (ctype-of value))
+ (%source-name '.anonymous.)
+ (where-from :defined)))
+ (:include leaf))
;; the value of the constant
- (value nil :type t))
+ (value (missing-arg) :type t)
+ ;; Boxed TN for this constant, if any.
+ (boxed-tn nil :type (or null tn)))
(defprinter (constant :identity t)
- (%source-name :test %source-name)
value)
;;; The BASIC-VAR structure represents information common to all
;;; variables which don't correspond to known local functions.
(def!struct (basic-var (:include leaf)
- (:constructor nil))
+ (:constructor nil))
;; Lists of the set nodes for this variable.
(sets () :type list))
(def!struct (global-var (:include basic-var))
;; kind of variable described
(kind (missing-arg)
- :type (member :special :global-function :global)))
+ :type (member :special :global-function :global :unknown)))
(defprinter (global-var :identity t)
%source-name
#!+sb-show id
(type :test (not (eq type *universal-type*)))
+ (defined-type :test (not (eq defined-type *universal-type*)))
(where-from :test (not (eq where-from :assumed)))
kind)
;;; an inline proclamation) we copy the structure so that former
;;; INLINEP values are preserved.
(def!struct (defined-fun (:include global-var
- (where-from :defined)
- (kind :global-function)))
+ (where-from :defined)
+ (kind :global-function)))
;; The values of INLINEP and INLINE-EXPANSION initialized from the
;; global environment.
(inlinep nil :type inlinep)
(inline-expansion nil :type (or cons null))
- ;; the block-local definition of this function (either because it
- ;; was semi-inline, or because it was defined in this block). If
- ;; this function is not an entry point, then this may be deleted or
- ;; LET-converted. Null if we haven't converted the expansion yet.
- (functional nil :type (or functional null)))
+ ;; List of functionals corresponding to this DEFINED-FUN: either from the
+ ;; conversion of a NAMED-LAMBDA, or from inline-expansion (see
+ ;; RECOGNIZE-KNOWN-CALL) - we need separate functionals for each policy in
+ ;; which the function is used.
+ (functionals nil :type list))
(defprinter (defined-fun :identity t)
%source-name
#!+sb-show id
inlinep
- (functional :test functional))
+ (functionals :test functionals))
\f
;;;; function stuff
;;; We don't normally manipulate function types for defined functions,
;;; but if someone wants to know, an approximation is there.
(def!struct (functional (:include leaf
- (%source-name '.anonymous.)
- (where-from :defined)
- (type (specifier-type 'function))))
+ (%source-name '.anonymous.)
+ (where-from :defined)
+ (type (specifier-type 'function))))
;; (For public access to this slot, use LEAF-DEBUG-NAME.)
;;
;; the name of FUNCTIONAL for debugging purposes, or NIL if we
;; should just let the SOURCE-NAME fall through
- ;;
+ ;;
;; Unlike the SOURCE-NAME slot, this slot's value should never
;; affect ordinary code behavior, only debugging/diagnostic behavior.
;;
;; or not, as if it is a valid function name then it can look for an
;; inline expansion.
;;
- ;; The value of this slot can be anything, except that it shouldn't
- ;; be a legal function name, since otherwise debugging gets
- ;; confusing. (If a legal function name is a good name for the
- ;; function, it should be in %SOURCE-NAME, and then we shouldn't
- ;; need a %DEBUG-NAME.) In SBCL as of 0.pre7.87, it's always a
- ;; string unless it's NIL, since that's how CMU CL represented debug
- ;; names. However, eventually I (WHN) think it we should start using
- ;; list values instead, since they have much nicer print properties
- ;; (abbreviation, skipping package prefixes when unneeded, and
- ;; renaming package prefixes when we do things like renaming SB!EXT
- ;; to SB-EXT).
- ;;
;; E.g. for the function which implements (DEFUN FOO ...), we could
;; have
;; %SOURCE-NAME=FOO
;; for the function which implements the top level form
;; (IN-PACKAGE :FOO) we could have
;; %SOURCE-NAME=NIL
- ;; %DEBUG-NAME="top level form (IN-PACKAGE :FOO)"
+ ;; %DEBUG-NAME=(TOP-LEVEL-FORM (IN-PACKAGE :FOO)
;; for the function which implements FOO in
;; (DEFUN BAR (...) (FLET ((FOO (...) ...)) ...))
;; we could have
;; %SOURCE-NAME=FOO
- ;; %DEBUG-NAME="FLET FOO in BAR"
+ ;; %DEBUG-NAME=(FLET FOO)
;; and for the function which implements FOO in
;; (DEFMACRO FOO (...) ...)
;; we could have
;; %SOURCE-NAME=FOO (or maybe .ANONYMOUS.?)
- ;; %DEBUG-NAME="DEFMACRO FOO"
+ ;; %DEBUG-NAME=(MACRO-FUNCTION FOO)
(%debug-name nil
- :type (or null (not (satisfies legal-fun-name-p)))
- :read-only t)
+ :type (or null (not (satisfies legal-fun-name-p)))
+ :read-only t)
;; some information about how this function is used. These values
;; are meaningful:
;;
;; NIL
- ;; an ordinary function, callable using local call
+ ;; an ordinary function, callable using local call
;;
;; :LET
- ;; a lambda that is used in only one local call, and has in
- ;; effect been substituted directly inline. The return node is
- ;; deleted, and the result is computed with the actual result
- ;; lvar for the call.
+ ;; a lambda that is used in only one local call, and has in
+ ;; effect been substituted directly inline. The return node is
+ ;; deleted, and the result is computed with the actual result
+ ;; lvar for the call.
;;
;; :MV-LET
- ;; Similar to :LET (as per FUNCTIONAL-LETLIKE-P), but the call
+ ;; Similar to :LET (as per FUNCTIONAL-LETLIKE-P), but the call
;; is an MV-CALL.
;;
;; :ASSIGNMENT
- ;; similar to a LET (as per FUNCTIONAL-SOMEWHAT-LETLIKE-P), but
+ ;; similar to a LET (as per FUNCTIONAL-SOMEWHAT-LETLIKE-P), but
;; can have other than one call as long as there is at most
;; one non-tail call.
;;
;; :OPTIONAL
- ;; a lambda that is an entry point for an OPTIONAL-DISPATCH.
- ;; Similar to NIL, but requires greater caution, since local call
- ;; analysis may create new references to this function. Also, the
- ;; function cannot be deleted even if it has *no* references. The
- ;; OPTIONAL-DISPATCH is in the LAMDBA-OPTIONAL-DISPATCH.
+ ;; a lambda that is an entry point for an OPTIONAL-DISPATCH.
+ ;; Similar to NIL, but requires greater caution, since local call
+ ;; analysis may create new references to this function. Also, the
+ ;; function cannot be deleted even if it has *no* references. The
+ ;; OPTIONAL-DISPATCH is in the LAMDBA-OPTIONAL-DISPATCH.
;;
;; :EXTERNAL
- ;; an external entry point lambda. The function it is an entry
- ;; for is in the ENTRY-FUN slot.
+ ;; an external entry point lambda. The function it is an entry
+ ;; for is in the ENTRY-FUN slot.
;;
;; :TOPLEVEL
- ;; a top level lambda, holding a compiled top level form.
- ;; Compiled very much like NIL, but provides an indication of
- ;; top level context. A :TOPLEVEL lambda should have *no*
- ;; references. Its ENTRY-FUN is a self-pointer.
+ ;; a top level lambda, holding a compiled top level form.
+ ;; Compiled very much like NIL, but provides an indication of
+ ;; top level context. A :TOPLEVEL lambda should have *no*
+ ;; references. Its ENTRY-FUN is a self-pointer.
;;
;; :TOPLEVEL-XEP
- ;; After a component is compiled, we clobber any top level code
- ;; references to its non-closure XEPs with dummy FUNCTIONAL
- ;; structures having this kind. This prevents the retained
- ;; top level code from holding onto the IR for the code it
- ;; references.
+ ;; After a component is compiled, we clobber any top level code
+ ;; references to its non-closure XEPs with dummy FUNCTIONAL
+ ;; structures having this kind. This prevents the retained
+ ;; top level code from holding onto the IR for the code it
+ ;; references.
;;
;; :ESCAPE
;; :CLEANUP
- ;; special functions used internally by CATCH and UNWIND-PROTECT.
- ;; These are pretty much like a normal function (NIL), but are
- ;; treated specially by local call analysis and stuff. Neither
- ;; kind should ever be given an XEP even though they appear as
- ;; args to funny functions. An :ESCAPE function is never actually
- ;; called, and thus doesn't need to have code generated for it.
+ ;; special functions used internally by CATCH and UNWIND-PROTECT.
+ ;; These are pretty much like a normal function (NIL), but are
+ ;; treated specially by local call analysis and stuff. Neither
+ ;; kind should ever be given an XEP even though they appear as
+ ;; args to funny functions. An :ESCAPE function is never actually
+ ;; called, and thus doesn't need to have code generated for it.
;;
;; :DELETED
- ;; This function has been found to be uncallable, and has been
- ;; marked for deletion.
+ ;; This function has been found to be uncallable, and has been
+ ;; marked for deletion.
+ ;;
+ ;; :ZOMBIE
+ ;; Effectless [MV-]LET; has no BIND node.
(kind nil :type (member nil :optional :deleted :external :toplevel
- :escape :cleanup :let :mv-let :assignment
- :toplevel-xep))
+ :escape :cleanup :let :mv-let :assignment
+ :zombie :toplevel-xep))
;; Is this a function that some external entity (e.g. the fasl dumper)
;; refers to, so that even when it appears to have no references, it
;; shouldn't be deleted? In the old days (before
;; the original function or macro lambda list, or :UNSPECIFIED if
;; this is a compiler created function
(arg-documentation nil :type (or list (member :unspecified)))
+ ;; the documentation string for the lambda
+ (documentation nil :type (or null string))
+ ;; Node, allocating closure for this lambda. May be NIL when we are
+ ;; sure that no closure is needed.
+ (allocator nil :type (or null combination))
;; various rare miscellaneous info that drives code generation & stuff
- (plist () :type list))
+ (plist () :type list)
+ ;; xref information for this functional (only used for functions with an
+ ;; XEP)
+ (xref () :type list)
+ ;; True if this functional was created from an inline expansion. This
+ ;; is either T, or the GLOBAL-VAR for which it is an expansion.
+ (inline-expanded nil))
(defprinter (functional :identity t)
%source-name
%debug-name
;;; it returns one value or multiple values)
(defun functional-letlike-p (functional)
(member (functional-kind functional)
- '(:let :mv-let)))
+ '(:let :mv-let)))
;;; Is FUNCTIONAL sorta LET-converted? (where even an :ASSIGNMENT counts)
;;;
;;; optional, keyword and rest arguments are handled by transforming
;;; into simpler stuff.
(def!struct (clambda (:include functional)
- (:conc-name lambda-)
- (:predicate lambda-p)
- (:constructor make-lambda)
- (:copier copy-lambda))
+ (:conc-name lambda-)
+ (:predicate lambda-p)
+ (:constructor make-lambda)
+ (:copier copy-lambda))
;; list of LAMBDA-VAR descriptors for arguments
(vars nil :type list :read-only t)
;; If this function was ever a :OPTIONAL function (an entry-point
;; objects (closed-over LAMBDA-VARs and XEPs) which this lambda
;; depends on in such a way that DFO shouldn't put them in separate
;; components.
- (calls-or-closes nil :type list)
+ (calls-or-closes (make-sset) :type (or null sset))
;; the TAIL-SET that this LAMBDA is in. This is null during creation.
;;
;; In CMU CL, and old SBCL, this was also NILed out when LET
(call-lexenv nil :type (or lexenv null))
;; list of embedded lambdas
(children nil :type list)
- (parent nil :type (or clambda null)))
+ (parent nil :type (or clambda null))
+ (allow-instrumenting *allow-instrumenting* :type boolean)
+ ;; True if this is a system introduced lambda: it may contain user code, but
+ ;; the lambda itself is not, and the bindings introduced by it are considered
+ ;; transparent by the nested DX analysis.
+ (system-lambda-p nil :type boolean))
(defprinter (clambda :conc-name lambda- :identity t)
%source-name
%debug-name
;; the kind of argument being described. Required args only have arg
;; info structures if they are special.
(kind (missing-arg)
- :type (member :required :optional :keyword :rest
- :more-context :more-count))
+ :type (member :required :optional :keyword :rest
+ :more-context :more-count))
;; If true, this is the VAR for SUPPLIED-P variable of a keyword or
;; optional arg. This is true for keywords with non-constant
;; defaults even when there is no user-specified supplied-p var.
;; the default for a keyword or optional, represented as the
;; original Lisp code. This is set to NIL in &KEY arguments that are
;; defaulted using the SUPPLIED-P arg.
+ ;;
+ ;; For &REST arguments this may contain information about more context
+ ;; the rest list comes from.
(default nil :type t)
;; the actual key for a &KEY argument. Note that in ANSI CL this is
;; not necessarily a keyword: (DEFUN FOO (&KEY ((BAR BAR))) ...).
;; This is set by physical environment analysis if it chooses an
;; indirect (value cell) representation for this variable because it
;; is both set and closed over.
- indirect)
+ indirect
+ ;; true if the last reference has been deleted (and new references
+ ;; should not be made)
+ deleted
+ ;; This is set by physical environment analysis if, should it be an
+ ;; indirect lambda-var, an actual value cell object must be
+ ;; allocated for this variable because one or more of the closures
+ ;; that refer to it are not dynamic-extent. Note that both
+ ;; attributes must be set for the value-cell object to be created.
+ explicit-value-cell
+ )
(def!struct (lambda-var (:include basic-var))
(flags (lambda-var-attributes)
;; propagation. This is left null by the lambda pre-pass if it
;; determine that this is a set closure variable, and is thus not a
;; good subject for flow analysis.
- (constraints nil :type (or sset null)))
+ (constraints nil :type (or null t #| FIXME: conset |#))
+ ;; Content-addressed indices for the CONSTRAINTs on this variable.
+ ;; These are solely used by FIND-CONSTRAINT
+ (ctype-constraints nil :type (or null hash-table))
+ (eq-constraints nil :type (or null hash-table))
+ ;; sorted sets of constraints we like to iterate over
+ (eql-var-constraints nil :type (or null (array t 1)))
+ (inheritable-constraints nil :type (or null (array t 1)))
+ (private-constraints nil :type (or null (array t 1)))
+ ;; Initial type of a LET variable as last seen by PROPAGATE-FROM-SETS.
+ (last-initial-type *universal-type* :type ctype)
+ ;; The FOP handle of the lexical variable represented by LAMBDA-VAR
+ ;; in the fopcompiler.
+ (fop-value nil))
(defprinter (lambda-var :identity t)
%source-name
#!+sb-show id
`(lambda-var-attributep (lambda-var-flags ,var) ignore))
(defmacro lambda-var-indirect (var)
`(lambda-var-attributep (lambda-var-flags ,var) indirect))
+(defmacro lambda-var-deleted (var)
+ `(lambda-var-attributep (lambda-var-flags ,var) deleted))
+(defmacro lambda-var-explicit-value-cell (var)
+ `(lambda-var-attributep (lambda-var-flags ,var) explicit-value-cell))
\f
;;;; basic node types
;;; A REF represents a reference to a LEAF. REF-REOPTIMIZE is
;;; initially (and forever) NIL, since REFs don't receive any values
;;; and don't have any IR1 optimizer.
-(defstruct (ref (:include valued-node (reoptimize nil))
- (:constructor make-ref
- (leaf
- &aux (leaf-type (leaf-type leaf))
- (derived-type
- (make-single-value-type leaf-type))))
- (:copier nil))
+(def!struct (ref (:include valued-node (reoptimize nil))
+ (:constructor make-ref
+ (leaf
+ &optional (%source-name '.anonymous.)
+ &aux (leaf-type (leaf-type leaf))
+ (derived-type
+ (make-single-value-type leaf-type))))
+ (:copier nil))
;; The leaf referenced.
- (leaf nil :type leaf))
+ (leaf nil :type leaf)
+ ;; CONSTANT nodes are always anonymous, since we wish to coalesce named and
+ ;; unnamed constants that are equivalent, we need to keep track of the
+ ;; reference name for XREF.
+ (%source-name (missing-arg) :type symbol :read-only t))
(defprinter (ref :identity t)
#!+sb-show id
+ (%source-name :test (neq %source-name '.anonymous.))
leaf)
;;; Naturally, the IF node always appears at the end of a block.
-(defstruct (cif (:include node)
- (:conc-name if-)
- (:predicate if-p)
- (:constructor make-if)
- (:copier copy-if))
+(def!struct (cif (:include node)
+ (:conc-name if-)
+ (:predicate if-p)
+ (:constructor make-if)
+ (:copier copy-if))
;; LVAR for the predicate
(test (missing-arg) :type lvar)
;; the blocks that we execute next in true and false case,
;; respectively (may be the same)
(consequent (missing-arg) :type cblock)
- (alternative (missing-arg) :type cblock))
+ (consequent-constraints nil :type (or null t #| FIXME: conset |#))
+ (alternative (missing-arg) :type cblock)
+ (alternative-constraints nil :type (or null t #| FIXME: conset |#)))
(defprinter (cif :conc-name if- :identity t)
(test :prin1 (lvar-uses test))
consequent
alternative)
-(defstruct (cset (:include valued-node
- (derived-type (make-single-value-type
+(def!struct (cset (:include valued-node
+ (derived-type (make-single-value-type
*universal-type*)))
- (:conc-name set-)
- (:predicate set-p)
- (:constructor make-set)
- (:copier copy-set))
+ (:conc-name set-)
+ (:predicate set-p)
+ (:constructor make-set)
+ (:copier copy-set))
;; descriptor for the variable set
(var (missing-arg) :type basic-var)
;; LVAR for the value form
;;; and multiple value combinations. In a let-like function call, this
;;; node appears at the end of its block and the body of the called
;;; function appears as the successor; the NODE-LVAR is null.
-(defstruct (basic-combination (:include valued-node)
- (:constructor nil)
- (:copier nil))
+(def!struct (basic-combination (:include valued-node)
+ (:constructor nil)
+ (:copier nil))
;; LVAR for the function
(fun (missing-arg) :type lvar)
;; list of LVARs for the args. In a local call, an argument lvar may
(args nil :type list)
;; the kind of function call being made. :LOCAL means that this is a
;; local call to a function in the same component, and that argument
- ;; syntax checking has been done, etc. Calls to known global
- ;; functions are represented by storing the FUN-INFO for the
- ;; function in this slot. :FULL is a call to an (as yet) unknown
- ;; function. :ERROR is like :FULL, but means that we have discovered
- ;; that the call contains an error, and should not be reconsidered
- ;; for optimization.
- (kind :full :type (or (member :local :full :error) fun-info))
+ ;; syntax checking has been done, etc. Calls to known global
+ ;; functions are represented by storing :KNOWN in this slot and the
+ ;; FUN-INFO for that function in the FUN-INFO slot. :FULL is a call
+ ;; to an (as yet) unknown function, or to a known function declared
+ ;; NOTINLINE. :ERROR is like :FULL, but means that we have
+ ;; discovered that the call contains an error, and should not be
+ ;; reconsidered for optimization.
+ (kind :full :type (member :local :full :error :known))
+ ;; if a call to a known global function, contains the FUN-INFO.
+ (fun-info nil :type (or fun-info null))
+ ;; Untrusted type we have asserted for this combination.
+ (type-validated-for-leaf nil)
;; some kind of information attached to this node by the back end
- (info nil))
+ (info nil)
+ (step-info))
;;; The COMBINATION node represents all normal function calls,
;;; including FUNCALL. This is distinct from BASIC-COMBINATION so that
;;; an MV-COMBINATION isn't COMBINATION-P.
-(defstruct (combination (:include basic-combination)
- (:constructor make-combination (fun))
- (:copier nil)))
+(def!struct (combination (:include basic-combination)
+ (:constructor make-combination (fun))
+ (:copier nil)))
(defprinter (combination :identity t)
#!+sb-show id
(fun :prin1 (lvar-uses fun))
(args :prin1 (mapcar (lambda (x)
- (if x
- (lvar-uses x)
- "<deleted>"))
- args)))
+ (if x
+ (lvar-uses x)
+ "<deleted>"))
+ args)))
;;; An MV-COMBINATION is to MULTIPLE-VALUE-CALL as a COMBINATION is to
;;; FUNCALL. This is used to implement all the multiple-value
;;; receiving forms.
-(defstruct (mv-combination (:include basic-combination)
- (:constructor make-mv-combination (fun))
- (:copier nil)))
+(def!struct (mv-combination (:include basic-combination)
+ (:constructor make-mv-combination (fun))
+ (:copier nil)))
(defprinter (mv-combination)
(fun :prin1 (lvar-uses fun))
(args :prin1 (mapcar #'lvar-uses args)))
;;; The BIND node marks the beginning of a lambda body and represents
;;; the creation and initialization of the variables.
-(defstruct (bind (:include node)
- (:copier nil))
+(def!struct (bind (:include node)
+ (:copier nil))
;; the lambda we are binding variables for. Null when we are
;; creating the LAMBDA during IR1 translation.
(lambda nil :type (or clambda null)))
;;; return values and represents the control transfer on return. This
;;; is also where we stick information used for TAIL-SET type
;;; inference.
-(defstruct (creturn (:include node)
- (:conc-name return-)
- (:predicate return-p)
- (:constructor make-return)
- (:copier copy-return))
+(def!struct (creturn (:include node)
+ (:conc-name return-)
+ (:predicate return-p)
+ (:constructor make-return)
+ (:copier copy-return))
;; the lambda we are returning from. Null temporarily during
;; ir1tran.
(lambda nil :type (or clambda null))
;;; The CAST node represents type assertions. The check for
;;; TYPE-TO-CHECK is performed and then the VALUE is declared to be of
;;; type ASSERTED-TYPE.
-(defstruct (cast (:include valued-node)
- (:constructor %make-cast))
+(def!struct (cast (:include valued-node)
+ (:constructor %make-cast))
(asserted-type (missing-arg) :type ctype)
(type-to-check (missing-arg) :type ctype)
;; an indication of what we have proven about how this type
;;; The ENTRY node serves to mark the start of the dynamic extent of a
;;; lexical exit. It is the mess-up node for the corresponding :ENTRY
;;; cleanup.
-(defstruct (entry (:include node)
- (:copier nil))
+(def!struct (entry (:include node)
+ (:copier nil))
;; All of the EXIT nodes for potential non-local exits to this point.
(exits nil :type list)
;; The cleanup for this entry. NULL only temporarily.
;;; continuation and the exit continuation's DEST. Instead of using
;;; the returned value being delivered directly to the exit
;;; continuation, it is delivered to our VALUE lvar. The original exit
-;;; lvar is the exit node's LVAR.
-(defstruct (exit (:include valued-node)
- (:copier nil))
+;;; lvar is the exit node's LVAR; physenv analysis also makes it the
+;;; lvar of %NLX-ENTRY call.
+(def!struct (exit (:include valued-node)
+ (:copier nil))
;; the ENTRY node that this is an exit for. If null, this is a
;; degenerate exit. A degenerate exit is used to "fill" an empty
;; block (which isn't allowed in IR1.) In a degenerate exit, Value
(entry nil :type (or entry null))
;; the lvar yielding the value we are to exit with. If NIL, then no
;; value is desired (as in GO).
- (value nil :type (or lvar null)))
+ (value nil :type (or lvar null))
+ (nlx-info nil :type (or nlx-info null)))
(defprinter (exit :identity t)
#!+sb-show id
(entry :test entry)
\f
;;;; miscellaneous IR1 structures
-(defstruct (undefined-warning
- #-no-ansi-print-object
- (:print-object (lambda (x s)
- (print-unreadable-object (x s :type t)
- (prin1 (undefined-warning-name x) s))))
- (:copier nil))
+(def!struct (undefined-warning
+ #-no-ansi-print-object
+ (:print-object (lambda (x s)
+ (print-unreadable-object (x s :type t)
+ (prin1 (undefined-warning-name x) s))))
+ (:copier nil))
;; the name of the unknown thing
(name nil :type (or symbol list))
;; the kind of reference to NAME
;;; a helper for the POLICY macro, defined late here so that the
;;; various type tests can be inlined
(declaim (ftype (function ((or list lexenv node functional)) list)
- %coerce-to-policy))
+ %coerce-to-policy))
(defun %coerce-to-policy (thing)
(let ((result (etypecase thing
- (list thing)
- (lexenv (lexenv-policy thing))
- (node (lexenv-policy (node-lexenv thing)))
- (functional (lexenv-policy (functional-lexenv thing))))))
+ (list thing)
+ (lexenv (lexenv-policy thing))
+ (node (lexenv-policy (node-lexenv thing)))
+ (functional (lexenv-policy (functional-lexenv thing))))))
;; Test the first element of the list as a rudimentary sanity
;; that it really does look like a valid policy.
(aver (or (null result) (policy-quality-name-p (caar result))))
#!-sb-fluid
(declaim (freeze-type node leaf lexenv ctran lvar cblock component cleanup
- physenv tail-set nlx-info))
+ physenv tail-set nlx-info))
projects / sbcl.git / blobdiff