gives non-ANSI, early-CMU-CL behavior. It can be useful for improving
the efficiency of stable code.")
+(defvar *fun-names-in-this-file* nil)
+
;;; *ALLOW-DEBUG-CATCH-TAG* controls whether we should allow the
;;; insertion a (CATCH ...) around code to allow the debugger RETURN
;;; command to function.
\f
;;;; namespace management utilities
+(defun fun-lexically-notinline-p (name)
+ (let ((fun (lexenv-find name funs :test #'equal)))
+ ;; a declaration will trump a proclamation
+ (if (and fun (defined-fun-p fun))
+ (eq (defined-fun-inlinep fun) :notinline)
+ (eq (info :function :inlinep name) :notinline))))
+
;;; Return a GLOBAL-VAR structure usable for referencing the global
;;; function NAME.
(defun find-free-really-fun (name)
;; definedness at runtime, which is what matters.
#-sb-xc-host (not (fboundp name)))
(note-undefined-reference name :function))
- (make-global-var :kind :global-function
- :%source-name name
- :type (if (or *derive-function-types*
- (eq where :declared))
- (info :function :type name)
- (specifier-type 'function))
- :where-from where)))
+ (make-global-var
+ :kind :global-function
+ :%source-name name
+ :type (if (or *derive-function-types*
+ (eq where :declared)
+ (and (member name *fun-names-in-this-file* :test #'equal)
+ (not (fun-lexically-notinline-p name))))
+ (info :function :type name)
+ (specifier-type 'function))
+ :where-from where)))
;;; Has the *FREE-FUNS* entry FREE-FUN become invalid?
;;;
;;; names a macro or special form, then we error out using the
;;; supplied context which indicates what we were trying to do that
;;; demanded a function.
-(declaim (ftype (function (t string) global-var) find-free-fun))
+(declaim (ftype (sfunction (t string) global-var) find-free-fun))
(defun find-free-fun (name context)
(or (let ((old-free-fun (gethash name *free-funs*)))
(and (not (invalid-free-fun-p old-free-fun))
:inline-expansion expansion
:inlinep inlinep
:where-from (info :function :where-from name)
- :type (info :function :type name))
+ :type (if (eq inlinep :notinline)
+ (specifier-type 'function)
+ (info :function :type name)))
(find-free-really-fun name))))))))
;;; Return the LEAF structure for the lexically apparent function
;;; definition of NAME.
-(declaim (ftype (function (t string) leaf) find-lexically-apparent-fun))
+(declaim (ftype (sfunction (t string) leaf) find-lexically-apparent-fun))
(defun find-lexically-apparent-fun (name context)
(let ((var (lexenv-find name funs :test #'equal)))
(cond (var
;;; corresponding value. Otherwise, we make a new leaf using
;;; information from the global environment and enter it in
;;; *FREE-VARS*. If the variable is unknown, then we emit a warning.
-(declaim (ftype (function (t) (or leaf cons heap-alien-info)) find-free-var))
+(declaim (ftype (sfunction (t) (or leaf cons heap-alien-info)) find-free-var))
(defun find-free-var (name)
(unless (symbolp name)
(compiler-error "Variable name is not a symbol: ~S." name))
;;; CONSTANT might be circular. We also check that the constant (and
;;; any subparts) are dumpable at all.
(eval-when (:compile-toplevel :load-toplevel :execute)
- ;; The EVAL-WHEN is necessary for #.(1+ LIST-TO-HASH-TABLE-THRESHOLD)
+ ;; The EVAL-WHEN is necessary for #.(1+ LIST-TO-HASH-TABLE-THRESHOLD)
;; below. -- AL 20010227
(def!constant list-to-hash-table-threshold 32))
(defun maybe-emit-make-load-forms (constant)
;;; This function sets up the back link between the node and the
;;; continuation which continues at it.
-(defun link-node-to-previous-continuation (node cont)
- (declare (type node node) (type continuation cont))
- (aver (not (continuation-next cont)))
- (setf (continuation-next cont) node)
- (setf (node-prev node) cont))
+(defun link-node-to-previous-ctran (node ctran)
+ (declare (type node node) (type ctran ctran))
+ (aver (not (ctran-next ctran)))
+ (setf (ctran-next ctran) node)
+ (setf (node-prev node) ctran))
;;; This function is used to set the continuation for a node, and thus
;;; determine what receives the value and what is evaluated next. If
;;; our block and link it to that block. If the continuation is not
;;; currently used, then we set the DERIVED-TYPE for the continuation
;;; to that of the node, so that a little type propagation gets done.
-;;;
-;;; We also deal with a bit of THE's semantics here: we weaken the
-;;; assertion on CONT to be no stronger than the assertion on CONT in
-;;; our scope. See the IR1-CONVERT method for THE.
-#!-sb-fluid (declaim (inline use-continuation))
-(defun use-continuation (node cont)
- (declare (type node node) (type continuation cont))
- (let ((node-block (continuation-block (node-prev node))))
- (case (continuation-kind cont)
- (:unused
- (setf (continuation-block cont) node-block)
- (setf (continuation-kind cont) :inside-block)
- (setf (continuation-use cont) node)
- (setf (node-cont node) cont))
- (t
- (%use-continuation node cont)))))
-(defun %use-continuation (node cont)
- (declare (type node node) (type continuation cont) (inline member))
- (let ((block (continuation-block cont))
- (node-block (continuation-block (node-prev node))))
- (aver (eq (continuation-kind cont) :block-start))
+#!-sb-fluid (declaim (inline use-ctran))
+(defun use-ctran (node ctran)
+ (declare (type node node) (type ctran ctran))
+ (if (eq (ctran-kind ctran) :unused)
+ (let ((node-block (ctran-block (node-prev node))))
+ (setf (ctran-block ctran) node-block)
+ (setf (ctran-kind ctran) :inside-block)
+ (setf (ctran-use ctran) node)
+ (setf (node-next node) ctran))
+ (%use-ctran node ctran)))
+(defun %use-ctran (node ctran)
+ (declare (type node node) (type ctran ctran) (inline member))
+ (let ((block (ctran-block ctran))
+ (node-block (ctran-block (node-prev node))))
+ (aver (eq (ctran-kind ctran) :block-start))
(when (block-last node-block)
(error "~S has already ended." node-block))
(setf (block-last node-block) node)
(when (memq node-block (block-pred block))
(error "~S is already a predecessor of ~S." node-block block))
(push node-block (block-pred block))
- (add-continuation-use node cont)
- (unless (eq (continuation-asserted-type cont) *wild-type*)
- (let* ((restriction (or (lexenv-find cont type-restrictions)
- *wild-type*))
- (wrestriction (or (lexenv-find cont weakend-type-restrictions)
- *wild-type*))
- (newatype (values-type-union (continuation-asserted-type cont)
- restriction))
- (newctype (values-type-union (continuation-type-to-check cont)
- wrestriction)))
- (when (or (type/= newatype (continuation-asserted-type cont))
- (type/= newctype (continuation-type-to-check cont)))
- (setf (continuation-asserted-type cont) newatype)
- (setf (continuation-type-to-check cont) newctype)
- (reoptimize-continuation cont))))))
+ #+nil(reoptimize-ctran ctran))) ; XXX
+
+(defun use-lvar (node lvar)
+ (declare (type valued-node node) (type (or lvar null) lvar))
+ (aver (not (node-lvar node)))
+ (when lvar
+ (setf (node-lvar node) lvar)
+ (cond ((null (lvar-uses lvar))
+ (setf (lvar-uses lvar) node))
+ ((listp (lvar-uses lvar))
+ (aver (not (memq node (lvar-uses lvar))))
+ (push node (lvar-uses lvar)))
+ (t
+ (aver (neq node (lvar-uses lvar)))
+ (setf (lvar-uses lvar) (list node (lvar-uses lvar)))))
+ (reoptimize-lvar lvar)))
+
+#!-sb-fluid(declaim (inline use-continuation))
+(defun use-continuation (node ctran lvar)
+ (use-ctran node ctran)
+ (use-lvar node lvar))
\f
;;;; exported functions
\f
;;;; IR1-CONVERT, macroexpansion and special form dispatching
+(declaim (ftype (sfunction (ctran ctran (or lvar null) t) (values))
+ ir1-convert))
(macrolet (;; Bind *COMPILER-ERROR-BAILOUT* to a function that throws
;; out of the body and converts a proxy form instead.
- (ir1-error-bailout ((start
- cont
+ (ir1-error-bailout ((start next result
form
&optional
(proxy ``(error 'simple-program-error
:format-control "execution of a form compiled with errors:~% ~S"
:format-arguments (list ',,form))))
&body body)
- (let ((skip (gensym "SKIP")))
+ (with-unique-names (skip)
`(block ,skip
(catch 'ir1-error-abort
(let ((*compiler-error-bailout*
(throw 'ir1-error-abort nil))))
,@body
(return-from ,skip nil)))
- (ir1-convert ,start ,cont ,proxy)))))
+ (ir1-convert ,start ,next ,result ,proxy)))))
;; Translate FORM into IR1. The code is inserted as the NEXT of the
- ;; continuation START. CONT is the continuation which receives the
- ;; value of the FORM to be translated. The translators call this
- ;; function recursively to translate their subnodes.
+ ;; CTRAN START. RESULT is the LVAR which receives the value of the
+ ;; FORM to be translated. The translators call this function
+ ;; recursively to translate their subnodes.
;;
;; As a special hack to make life easier in the compiler, a LEAF
;; IR1-converts into a reference to that LEAF structure. This allows
;; the creation using backquote of forms that contain leaf
;; references, without having to introduce dummy names into the
;; namespace.
- (declaim (ftype (function (continuation continuation t) (values)) ir1-convert))
- (defun ir1-convert (start cont form)
- (ir1-error-bailout (start cont form)
+ (defun ir1-convert (start next result form)
+ (ir1-error-bailout (start next result form)
(let ((*current-path* (or (gethash form *source-paths*)
(cons form *current-path*))))
(if (atom form)
(cond ((and (symbolp form) (not (keywordp form)))
- (ir1-convert-var start cont form))
+ (ir1-convert-var start next result form))
((leaf-p form)
- (reference-leaf start cont form))
+ (reference-leaf start next result form))
(t
- (reference-constant start cont form)))
+ (reference-constant start next result form)))
(let ((opname (car form)))
- (cond ((symbolp opname)
- (let ((lexical-def (lexenv-find opname funs)))
+ (cond ((or (symbolp opname) (leaf-p opname))
+ (let ((lexical-def (if (leaf-p opname)
+ opname
+ (lexenv-find opname funs))))
(typecase lexical-def
- (null (ir1-convert-global-functoid start cont form))
+ (null
+ (ir1-convert-global-functoid start next result
+ form))
(functional
- (ir1-convert-local-combination start
- cont
+ (ir1-convert-local-combination start next result
form
lexical-def))
(global-var
- (ir1-convert-srctran start cont lexical-def form))
+ (ir1-convert-srctran start next result
+ lexical-def form))
(t
(aver (and (consp lexical-def)
(eq (car lexical-def) 'macro)))
- (ir1-convert start cont
+ (ir1-convert start next result
(careful-expand-macro (cdr lexical-def)
form))))))
((or (atom opname) (not (eq (car opname) 'lambda)))
(t
;; implicitly (LAMBDA ..) because the LAMBDA
;; expression is the CAR of an executed form
- (ir1-convert-combination start
- cont
+ (ir1-convert-combination start next result
form
(ir1-convert-lambda
opname
;; if necessary. If we are producing a fasl file, make sure that
;; MAKE-LOAD-FORM gets used on any parts of the constant that it
;; needs to be.
- (defun reference-constant (start cont value)
- (declare (type continuation start cont)
+ (defun reference-constant (start next result value)
+ (declare (type ctran start next)
+ (type (or lvar null) result)
(inline find-constant))
(ir1-error-bailout
- (start cont value '(error "attempt to reference undumpable constant"))
+ (start next result value '(error "attempt to reference undumpable constant"))
(when (producing-fasl-file)
(maybe-emit-make-load-forms value))
(let* ((leaf (find-constant value))
- (res (make-ref (leaf-type leaf) leaf)))
+ (res (make-ref leaf)))
(push res (leaf-refs leaf))
- (link-node-to-previous-continuation res start)
- (use-continuation res cont)))
+ (link-node-to-previous-ctran res start)
+ (use-continuation res next result)))
(values)))
;;; Add FUNCTIONAL to the COMPONENT-REANALYZE-FUNCTIONALS, unless it's
(when (typep functional '(or optional-dispatch clambda))
;; When FUNCTIONAL knows its component
- (when (lambda-p functional)
+ (when (lambda-p functional)
(aver (eql (lambda-component functional) *current-component*)))
(pushnew functional
;;; needed. If LEAF represents a defined function which has already
;;; been converted, and is not :NOTINLINE, then reference the
;;; functional instead.
-(defun reference-leaf (start cont leaf)
- (declare (type continuation start cont) (type leaf leaf))
- (with-continuation-type-assertion
- (cont (or (lexenv-find leaf type-restrictions) *wild-type*)
- "in DECLARE")
- (let* ((leaf (or (and (defined-fun-p leaf)
- (not (eq (defined-fun-inlinep leaf)
- :notinline))
- (let ((functional (defined-fun-functional leaf)))
- (when (and functional
- (not (functional-kind functional)))
- (maybe-reanalyze-functional functional))))
- leaf))
- (res (make-ref (leaf-type leaf)
- leaf)))
- (push res (leaf-refs leaf))
- (setf (leaf-ever-used leaf) t)
- (link-node-to-previous-continuation res start)
- (use-continuation res cont))))
+(defun reference-leaf (start next result leaf)
+ (declare (type ctran start next) (type (or lvar null) result) (type leaf leaf))
+ (when (functional-p leaf)
+ (assure-functional-live-p leaf))
+ (let* ((type (lexenv-find leaf type-restrictions))
+ (leaf (or (and (defined-fun-p leaf)
+ (not (eq (defined-fun-inlinep leaf)
+ :notinline))
+ (let ((functional (defined-fun-functional leaf)))
+ (when (and functional
+ (not (functional-kind functional)))
+ (maybe-reanalyze-functional functional))))
+ (when (and (lambda-p leaf)
+ (memq (functional-kind leaf)
+ '(nil :optional)))
+ (maybe-reanalyze-functional leaf))
+ leaf))
+ (ref (make-ref leaf)))
+ (push ref (leaf-refs leaf))
+ (setf (leaf-ever-used leaf) t)
+ (link-node-to-previous-ctran ref start)
+ (cond (type (let* ((ref-ctran (make-ctran))
+ (ref-lvar (make-lvar))
+ (cast (make-cast ref-lvar
+ (make-single-value-type type)
+ (lexenv-policy *lexenv*))))
+ (setf (lvar-dest ref-lvar) cast)
+ (use-continuation ref ref-ctran ref-lvar)
+ (link-node-to-previous-ctran cast ref-ctran)
+ (use-continuation cast next result)))
+ (t (use-continuation ref next result)))))
;;; Convert a reference to a symbolic constant or variable. If the
;;; symbol is entered in the LEXENV-VARS we use that definition,
;;; otherwise we find the current global definition. This is also
;;; where we pick off symbol macro and alien variable references.
-(defun ir1-convert-var (start cont name)
- (declare (type continuation start cont) (symbol name))
+(defun ir1-convert-var (start next result name)
+ (declare (type ctran start next) (type (or lvar null) result) (symbol name))
(let ((var (or (lexenv-find name vars) (find-free-var name))))
(etypecase var
(leaf
(when (lambda-var-p var)
- (let ((home (continuation-home-lambda-or-null start)))
+ (let ((home (ctran-home-lambda-or-null start)))
(when home
(pushnew var (lambda-calls-or-closes home))))
(when (lambda-var-ignorep var)
;; (ANSI's specification for the IGNORE declaration requires
;; that this be a STYLE-WARNING, not a full WARNING.)
(compiler-style-warn "reading an ignored variable: ~S" name)))
- (reference-leaf start cont var))
+ (reference-leaf start next result var))
(cons
(aver (eq (car var) 'MACRO))
- (ir1-convert start cont (cdr var)))
+ ;; FIXME: [Free] type declarations. -- APD, 2002-01-26
+ (ir1-convert start next result (cdr var)))
(heap-alien-info
- (ir1-convert start cont `(%heap-alien ',var)))))
+ (ir1-convert start next result `(%heap-alien ',var)))))
(values))
;;; Convert anything that looks like a special form, global function
;;; or compiler-macro call.
-(defun ir1-convert-global-functoid (start cont form)
- (declare (type continuation start cont) (list form))
+(defun ir1-convert-global-functoid (start next result form)
+ (declare (type ctran start next) (type (or lvar null) result) (list form))
(let* ((fun-name (first form))
(translator (info :function :ir1-convert fun-name))
(cmacro-fun (sb!xc:compiler-macro-function fun-name *lexenv*)))
(cond (translator
(when cmacro-fun
(compiler-warn "ignoring compiler macro for special form"))
- (funcall translator start cont form))
+ (funcall translator start next result form))
((and cmacro-fun
;; gotcha: If you look up the DEFINE-COMPILER-MACRO
;; macro in the ANSI spec, you might think that
(let ((res (careful-expand-macro cmacro-fun form)))
(if (eq res form)
(ir1-convert-global-functoid-no-cmacro
- start cont form fun-name)
- (ir1-convert start cont res))))
+ start next result form fun-name)
+ (ir1-convert start next result res))))
(t
- (ir1-convert-global-functoid-no-cmacro start cont form fun-name)))))
+ (ir1-convert-global-functoid-no-cmacro start next result
+ form fun-name)))))
;;; Handle the case of where the call was not a compiler macro, or was
;;; a compiler macro and passed.
-(defun ir1-convert-global-functoid-no-cmacro (start cont form fun)
- (declare (type continuation start cont) (list form))
+(defun ir1-convert-global-functoid-no-cmacro (start next result form fun)
+ (declare (type ctran start next) (type (or lvar null) result)
+ (list form))
;; FIXME: Couldn't all the INFO calls here be converted into
;; standard CL functions, like MACRO-FUNCTION or something?
;; And what happens with lexically-defined (MACROLET) macros
;; here, anyway?
(ecase (info :function :kind fun)
(:macro
- (ir1-convert start
- cont
+ (ir1-convert start next result
(careful-expand-macro (info :function :macro-function fun)
form)))
((nil :function)
- (ir1-convert-srctran start
- cont
+ (ir1-convert-srctran start next result
(find-free-fun fun "shouldn't happen! (no-cmacro)")
form))))
;; WHN 19990412
#+(and cmu sb-xc-host)
(warning (lambda (c)
- (compiler-note
+ (compiler-notify
"~@<~A~:@_~
~A~:@_~
~@<(KLUDGE: That was a non-STYLE WARNING. ~
;;; Convert a bunch of forms, discarding all the values except the
;;; last. If there aren't any forms, then translate a NIL.
-(declaim (ftype (function (continuation continuation list) (values))
+(declaim (ftype (sfunction (ctran ctran (or lvar null) list) (values))
ir1-convert-progn-body))
-(defun ir1-convert-progn-body (start cont body)
+(defun ir1-convert-progn-body (start next result body)
(if (endp body)
- (reference-constant start cont nil)
+ (reference-constant start next result nil)
(let ((this-start start)
(forms body))
(loop
(let ((form (car forms)))
(when (endp (cdr forms))
- (ir1-convert this-start cont form)
+ (ir1-convert this-start next result form)
(return))
- (let ((this-cont (make-continuation)))
- (ir1-convert this-start this-cont form)
- (setq this-start this-cont
+ (let ((this-ctran (make-ctran)))
+ (ir1-convert this-start this-ctran nil form)
+ (setq this-start this-ctran
forms (cdr forms)))))))
(values))
\f
;;; Convert a function call where the function FUN is a LEAF. FORM is
;;; the source for the call. We return the COMBINATION node so that
;;; the caller can poke at it if it wants to.
-(declaim (ftype (function (continuation continuation list leaf) combination)
+(declaim (ftype (sfunction (ctran ctran (or lvar null) list leaf) combination)
ir1-convert-combination))
-(defun ir1-convert-combination (start cont form fun)
- (let ((fun-cont (make-continuation)))
- (reference-leaf start fun-cont fun)
- (ir1-convert-combination-args fun-cont cont (cdr form))))
+(defun ir1-convert-combination (start next result form fun)
+ (let ((fun-ctran (make-ctran))
+ (fun-lvar (make-lvar)))
+ (ir1-convert start fun-ctran fun-lvar `(the (or function symbol) ,fun))
+ (ir1-convert-combination-args fun-ctran fun-lvar next result (cdr form))))
;;; Convert the arguments to a call and make the COMBINATION
;;; node. FUN-CONT is the continuation which yields the function to
;;; call. ARGS is the list of arguments for the call, which defaults
;;; to the cdr of source. We return the COMBINATION node.
-(defun ir1-convert-combination-args (fun-cont cont args)
- (declare (type continuation fun-cont cont) (list args))
- (let ((node (make-combination fun-cont)))
- (setf (continuation-dest fun-cont) node)
- (assert-continuation-type fun-cont
- (specifier-type '(or function symbol))
- (lexenv-policy *lexenv*))
- (setf (continuation-%externally-checkable-type fun-cont) nil)
- (collect ((arg-conts))
- (let ((this-start fun-cont))
+(defun ir1-convert-combination-args (fun-ctran fun-lvar next result args)
+ (declare (type ctran fun-ctran next)
+ (type lvar fun-lvar)
+ (type (or lvar null) result)
+ (list args))
+ (let ((node (make-combination fun-lvar)))
+ (setf (lvar-dest fun-lvar) node)
+ (collect ((arg-lvars))
+ (let ((this-start fun-ctran))
(dolist (arg args)
- (let ((this-cont (make-continuation node)))
- (ir1-convert this-start this-cont arg)
- (setq this-start this-cont)
- (arg-conts this-cont)))
- (link-node-to-previous-continuation node this-start)
- (use-continuation node cont)
- (setf (combination-args node) (arg-conts))))
+ (let ((this-ctran (make-ctran))
+ (this-lvar (make-lvar node)))
+ (ir1-convert this-start this-ctran this-lvar arg)
+ (setq this-start this-ctran)
+ (arg-lvars this-lvar)))
+ (link-node-to-previous-ctran node this-start)
+ (use-continuation node next result)
+ (setf (combination-args node) (arg-lvars))))
node))
;;; Convert a call to a global function. If not :NOTINLINE, then we do
;;; expansion, but is :INLINE, then give an efficiency note (unless a
;;; known function which will quite possibly be open-coded.) Next, we
;;; go to ok-combination conversion.
-(defun ir1-convert-srctran (start cont var form)
- (declare (type continuation start cont) (type global-var var))
+(defun ir1-convert-srctran (start next result var form)
+ (declare (type ctran start next) (type (or lvar null) result)
+ (type global-var var))
(let ((inlinep (when (defined-fun-p var)
(defined-fun-inlinep var))))
(if (eq inlinep :notinline)
- (ir1-convert-combination start cont form var)
+ (ir1-convert-combination start next result form var)
(let ((transform (info :function
:source-transform
(leaf-source-name var))))
- (if transform
- (multiple-value-bind (result pass) (funcall transform form)
- (if pass
- (ir1-convert-maybe-predicate start cont form var)
- (ir1-convert start cont result)))
- (ir1-convert-maybe-predicate start cont form var))))))
+ (if transform
+ (multiple-value-bind (transformed pass) (funcall transform form)
+ (if pass
+ (ir1-convert-maybe-predicate start next result form var)
+ (ir1-convert start next result transformed)))
+ (ir1-convert-maybe-predicate start next result form var))))))
;;; If the function has the PREDICATE attribute, and the CONT's DEST
;;; isn't an IF, then we convert (IF <form> T NIL), ensuring that a
;;;
;;; If the function isn't a predicate, then we call
;;; IR1-CONVERT-COMBINATION-CHECKING-TYPE.
-(defun ir1-convert-maybe-predicate (start cont form var)
- (declare (type continuation start cont) (list form) (type global-var var))
+(defun ir1-convert-maybe-predicate (start next result form var)
+ (declare (type ctran start next)
+ (type (or lvar null) result)
+ (list form)
+ (type global-var var))
(let ((info (info :function :info (leaf-source-name var))))
(if (and info
(ir1-attributep (fun-info-attributes info) predicate)
- (not (if-p (continuation-dest cont))))
- (ir1-convert start cont `(if ,form t nil))
- (ir1-convert-combination-checking-type start cont form var))))
+ (not (if-p (and result (lvar-dest result)))))
+ (ir1-convert start next result `(if ,form t nil))
+ (ir1-convert-combination-checking-type start next result form var))))
;;; Actually really convert a global function call that we are allowed
;;; to early-bind.
;;; function type to the arg and result continuations. We do this now
;;; so that IR1 optimize doesn't have to redundantly do the check
;;; later so that it can do the type propagation.
-(defun ir1-convert-combination-checking-type (start cont form var)
- (declare (type continuation start cont) (list form) (type leaf var))
- (let* ((node (ir1-convert-combination start cont form var))
- (fun-cont (basic-combination-fun node))
+(defun ir1-convert-combination-checking-type (start next result form var)
+ (declare (type ctran start next) (type (or lvar null) result)
+ (list form)
+ (type leaf var))
+ (let* ((node (ir1-convert-combination start next result form var))
+ (fun-lvar (basic-combination-fun node))
(type (leaf-type var)))
(when (validate-call-type node type t)
- (setf (continuation-%derived-type fun-cont) type)
- (setf (continuation-reoptimize fun-cont) nil)
- (setf (continuation-%type-check fun-cont) nil)))
+ (setf (lvar-%derived-type fun-lvar)
+ (make-single-value-type type))
+ (setf (lvar-reoptimize fun-lvar) nil)))
(values))
;;; Convert a call to a local function, or if the function has already
;;; LOCALL-ALREADY-LET-CONVERTED. The THROW should only happen when we
;;; are converting inline expansions for local functions during
;;; optimization.
-(defun ir1-convert-local-combination (start cont form functional)
-
- ;; The test here is for "when LET converted", as a translation of
- ;; the old CMU CL comments into code. Unfortunately, the old CMU CL
- ;; comments aren't specific enough to tell whether the correct
- ;; translation is FUNCTIONAL-SOMEWHAT-LETLIKE-P or
- ;; FUNCTIONAL-LETLIKE-P or what. The old CMU CL code assumed that
- ;; any non-null FUNCTIONAL-KIND meant that the function "had been
- ;; LET converted", which might even be right, but seems fragile, so
- ;; we try to be pickier.
- (when (or
- ;; looks LET-converted
- (functional-somewhat-letlike-p functional)
- ;; It's possible for a LET-converted function to end up
- ;; deleted later. In that case, for the purposes of this
- ;; analysis, it is LET-converted: LET-converted functionals
- ;; are too badly trashed to expand them inline, and deleted
- ;; LET-converted functionals are even worse.
- (eql (functional-kind functional) :deleted))
- (throw 'locall-already-let-converted functional))
- ;; Any other non-NIL KIND value is a case we haven't found a
- ;; justification for, and at least some such values (e.g. :EXTERNAL
- ;; and :TOPLEVEL) seem obviously wrong.
- (aver (null (functional-kind functional)))
-
- (ir1-convert-combination start
- cont
+(defun ir1-convert-local-combination (start next result form functional)
+ (assure-functional-live-p functional)
+ (ir1-convert-combination start next result
form
(maybe-reanalyze-functional functional)))
\f
;;; LAMBDA-VAR for that name, or NIL if it isn't found. We return the
;;; *last* variable with that name, since LET* bindings may be
;;; duplicated, and declarations always apply to the last.
-(declaim (ftype (function (list symbol) (or lambda-var list))
+(declaim (ftype (sfunction (list symbol) (or lambda-var list))
find-in-bindings))
(defun find-in-bindings (vars name)
(let ((found nil))
(declare (list decl vars) (type lexenv res))
(let ((type (compiler-specifier-type (first decl))))
(collect ((restr nil cons)
- (new-vars nil cons))
+ (new-vars nil cons))
(dolist (var-name (rest decl))
(let* ((bound-var (find-in-bindings vars var-name))
(var (or bound-var
(find-free-var var-name))))
(etypecase var
(leaf
- (let* ((old-type (or (lexenv-find var type-restrictions)
- (leaf-type var)))
- (int (if (or (fun-type-p type)
- (fun-type-p old-type))
- type
- (type-approx-intersection2 old-type type))))
- (cond ((eq int *empty-type*)
- (unless (policy *lexenv* (= inhibit-warnings 3))
- (compiler-warn
- "The type declarations ~S and ~S for ~S conflict."
- (type-specifier old-type) (type-specifier type)
- var-name)))
- (bound-var (setf (leaf-type bound-var) int))
- (t
- (restr (cons var int))))))
+ (flet ((process-var (var bound-var)
+ (let* ((old-type (or (lexenv-find var type-restrictions)
+ (leaf-type var)))
+ (int (if (or (fun-type-p type)
+ (fun-type-p old-type))
+ type
+ (type-approx-intersection2 old-type type))))
+ (cond ((eq int *empty-type*)
+ (unless (policy *lexenv* (= inhibit-warnings 3))
+ (compiler-warn
+ "The type declarations ~S and ~S for ~S conflict."
+ (type-specifier old-type) (type-specifier type)
+ var-name)))
+ (bound-var (setf (leaf-type bound-var) int))
+ (t
+ (restr (cons var int)))))))
+ (process-var var bound-var)
+ (awhen (and (lambda-var-p var)
+ (lambda-var-specvar var))
+ (process-var it nil))))
(cons
;; FIXME: non-ANSI weirdness
(aver (eq (car var) 'MACRO))
(new-vars `(,var-name . (MACRO . (the ,(first decl)
- ,(cdr var))))))
+ ,(cdr var))))))
(heap-alien-info
(compiler-error
"~S is an alien variable, so its type can't be declared."
;;; declarations that constrain the type of lexically apparent
;;; functions.
(defun process-ftype-decl (spec res names fvars)
- (declare (type type-specifier spec)
- (type list names fvars)
+ (declare (type list names fvars)
(type lexenv res))
(let ((type (compiler-specifier-type spec)))
(collect ((res nil cons))
(found
(setf (leaf-type found) type)
(assert-definition-type found type
- :unwinnage-fun #'compiler-note
+ :unwinnage-fun #'compiler-notify
:where "FTYPE declaration"))
(t
(res (cons (find-lexically-apparent-fun
(make-lexenv :default res :vars (new-venv))
res)))
-;;; Return a DEFINED-FUN which copies a GLOBAL-VAR but for its INLINEP.
+;;; Return a DEFINED-FUN which copies a GLOBAL-VAR but for its INLINEP
+;;; (and TYPE if notinline).
(defun make-new-inlinep (var inlinep)
(declare (type global-var var) (type inlinep inlinep))
(let ((res (make-defined-fun
:%source-name (leaf-source-name var)
:where-from (leaf-where-from var)
- :type (leaf-type var)
+ :type (if (and (eq inlinep :notinline)
+ (not (eq (leaf-where-from var) :declared)))
+ (specifier-type 'function)
+ (leaf-type var))
:inlinep inlinep)))
(when (defined-fun-p var)
(setf (defined-fun-inline-expansion res)
(etypecase found
(functional
(when (policy *lexenv* (>= speed inhibit-warnings))
- (compiler-note "ignoring ~A declaration not at ~
- definition of local function:~% ~S"
- sense name)))
+ (compiler-notify "ignoring ~A declaration not at ~
+ definition of local function:~% ~S"
+ sense name)))
(global-var
(push (cons name (make-new-inlinep found sense))
new-fenv)))))))
(compiler-style-warn "declaring unknown variable ~S to be ignored"
name))
;; FIXME: This special case looks like non-ANSI weirdness.
- ((and (consp var) (consp (cdr var)) (eq (cadr var) 'macro))
+ ((and (consp var) (eq (car var) 'macro))
;; Just ignore the IGNORE decl.
)
((functional-p var)
"If true, processing of the VALUES declaration is inhibited.")
;;; Process a single declaration spec, augmenting the specified LEXENV
-;;; RES and returning it as a result. VARS and FVARS are as described in
+;;; RES. Return RES and result type. VARS and FVARS are as described
;;; PROCESS-DECLS.
-(defun process-1-decl (raw-spec res vars fvars cont)
+(defun process-1-decl (raw-spec res vars fvars)
(declare (type list raw-spec vars fvars))
(declare (type lexenv res))
- (declare (type continuation cont))
- (let ((spec (canonized-decl-spec raw-spec)))
- (case (first spec)
- (special (process-special-decl spec res vars))
- (ftype
- (unless (cdr spec)
- (compiler-error "no type specified in FTYPE declaration: ~S" spec))
- (process-ftype-decl (second spec) res (cddr spec) fvars))
- ((inline notinline maybe-inline)
- (process-inline-decl spec res fvars))
- ((ignore ignorable)
- (process-ignore-decl spec vars fvars)
- res)
- (optimize
- (make-lexenv
- :default res
- :policy (process-optimize-decl spec (lexenv-policy res))))
- (type
- (process-type-decl (cdr spec) res vars))
- (values
- (if *suppress-values-declaration*
- res
- (let ((types (cdr spec)))
- (ir1ize-the-or-values (if (eql (length types) 1)
- (car types)
- `(values ,@types))
- cont
- res
- "in VALUES declaration"))))
- (dynamic-extent
- (when (policy *lexenv* (> speed inhibit-warnings))
- (compiler-note
- "compiler limitation: ~
- ~% There's no special support for DYNAMIC-EXTENT (so it's ignored)."))
- res)
- (t
- (unless (info :declaration :recognized (first spec))
- (compiler-warn "unrecognized declaration ~S" raw-spec))
- res))))
+ (let ((spec (canonized-decl-spec raw-spec))
+ (result-type *wild-type*))
+ (values
+ (case (first spec)
+ (special (process-special-decl spec res vars))
+ (ftype
+ (unless (cdr spec)
+ (compiler-error "no type specified in FTYPE declaration: ~S" spec))
+ (process-ftype-decl (second spec) res (cddr spec) fvars))
+ ((inline notinline maybe-inline)
+ (process-inline-decl spec res fvars))
+ ((ignore ignorable)
+ (process-ignore-decl spec vars fvars)
+ res)
+ (optimize
+ (make-lexenv
+ :default res
+ :policy (process-optimize-decl spec (lexenv-policy res))))
+ (type
+ (process-type-decl (cdr spec) res vars))
+ (values
+ (unless *suppress-values-declaration*
+ (let ((types (cdr spec)))
+ (setq result-type
+ (compiler-values-specifier-type
+ (if (singleton-p types)
+ (car types)
+ `(values ,@types)))))
+ res))
+ (dynamic-extent
+ (when (policy *lexenv* (> speed inhibit-warnings))
+ (compiler-notify
+ "compiler limitation: ~
+ ~% There's no special support for DYNAMIC-EXTENT (so it's ignored)."))
+ res)
+ (t
+ (unless (info :declaration :recognized (first spec))
+ (compiler-warn "unrecognized declaration ~S" raw-spec))
+ res))
+ result-type)))
;;; Use a list of DECLARE forms to annotate the lists of LAMBDA-VAR
;;; and FUNCTIONAL structures which are being bound. In addition to
-;;; filling in slots in the leaf structures, we return a new LEXENV
+;;; filling in slots in the leaf structures, we return a new LEXENV,
;;; which reflects pervasive special and function type declarations,
-;;; (NOT)INLINE declarations and OPTIMIZE declarations. CONT is the
-;;; continuation affected by VALUES declarations.
+;;; (NOT)INLINE declarations and OPTIMIZE declarations, and type of
+;;; VALUES declarations.
;;;
;;; This is also called in main.lisp when PROCESS-FORM handles a use
;;; of LOCALLY.
-(defun process-decls (decls vars fvars cont &optional (env *lexenv*))
- (declare (list decls vars fvars) (type continuation cont))
- (dolist (decl decls)
- (dolist (spec (rest decl))
- (unless (consp spec)
- (compiler-error "malformed declaration specifier ~S in ~S" spec decl))
- (setq env (process-1-decl spec env vars fvars cont))))
- env)
+(defun process-decls (decls vars fvars &optional (env *lexenv*))
+ (declare (list decls vars fvars))
+ (let ((result-type *wild-type*))
+ (dolist (decl decls)
+ (dolist (spec (rest decl))
+ (unless (consp spec)
+ (compiler-error "malformed declaration specifier ~S in ~S" spec decl))
+ (multiple-value-bind (new-env new-result-type)
+ (process-1-decl spec env vars fvars)
+ (setq env new-env)
+ (unless (eq new-result-type *wild-type*)
+ (setq result-type
+ (values-type-intersection result-type new-result-type))))))
+ (values env result-type)))
+
+(defun %processing-decls (decls vars fvars ctran lvar fun)
+ (multiple-value-bind (*lexenv* result-type)
+ (process-decls decls vars fvars)
+ (cond ((eq result-type *wild-type*)
+ (funcall fun ctran lvar))
+ (t
+ (let ((value-ctran (make-ctran))
+ (value-lvar (make-lvar)))
+ (multiple-value-prog1
+ (funcall fun value-ctran value-lvar)
+ (let ((cast (make-cast value-lvar result-type
+ (lexenv-policy *lexenv*))))
+ (link-node-to-previous-ctran cast value-ctran)
+ (setf (lvar-dest value-lvar) cast)
+ (use-continuation cast ctran lvar))))))))
+(defmacro processing-decls ((decls vars fvars ctran lvar) &body forms)
+ (check-type ctran symbol)
+ (check-type lvar symbol)
+ `(%processing-decls ,decls ,vars ,fvars ,ctran ,lvar
+ (lambda (,ctran ,lvar) ,@forms)))
;;; Return the SPECVAR for NAME to use when we see a local SPECIAL
;;; declaration. If there is a global variable of that name, then
(make-global-var :kind :special
:%source-name name
:where-from :declared))))
-\f
-;;;; LAMBDA hackery
-
-;;;; Note: Take a look at the compiler-overview.tex section on "Hairy
-;;;; function representation" before you seriously mess with this
-;;;; stuff.
-
-;;; Verify that the NAME is a legal name for a variable and return a
-;;; VAR structure for it, filling in info if it is globally special.
-;;; If it is losing, we punt with a COMPILER-ERROR. NAMES-SO-FAR is a
-;;; list of names which have previously been bound. If the NAME is in
-;;; this list, then we error out.
-(declaim (ftype (function (t list) lambda-var) varify-lambda-arg))
-(defun varify-lambda-arg (name names-so-far)
- (declare (inline member))
- (unless (symbolp name)
- (compiler-error "The lambda variable ~S is not a symbol." name))
- (when (member name names-so-far :test #'eq)
- (compiler-error "The variable ~S occurs more than once in the lambda list."
- name))
- (let ((kind (info :variable :kind name)))
- (when (or (keywordp name) (eq kind :constant))
- (compiler-error "The name of the lambda variable ~S is already in use to name a constant."
- name))
- (cond ((eq kind :special)
- (let ((specvar (find-free-var name)))
- (make-lambda-var :%source-name name
- :type (leaf-type specvar)
- :where-from (leaf-where-from specvar)
- :specvar specvar)))
- (t
- (make-lambda-var :%source-name name)))))
-
-;;; Make the default keyword for a &KEY arg, checking that the keyword
-;;; isn't already used by one of the VARS.
-(declaim (ftype (function (symbol list t) keyword) make-keyword-for-arg))
-(defun make-keyword-for-arg (symbol vars keywordify)
- (let ((key (if (and keywordify (not (keywordp symbol)))
- (keywordicate symbol)
- symbol)))
- (dolist (var vars)
- (let ((info (lambda-var-arg-info var)))
- (when (and info
- (eq (arg-info-kind info) :keyword)
- (eq (arg-info-key info) key))
- (compiler-error
- "The keyword ~S appears more than once in the lambda list."
- key))))
- key))
-
-;;; Parse a lambda list into a list of VAR structures, stripping off
-;;; any &AUX bindings. Each arg name is checked for legality, and
-;;; duplicate names are checked for. If an arg is globally special,
-;;; the var is marked as :SPECIAL instead of :LEXICAL. &KEY,
-;;; &OPTIONAL and &REST args are annotated with an ARG-INFO structure
-;;; which contains the extra information. If we hit something losing,
-;;; we bug out with COMPILER-ERROR. These values are returned:
-;;; 1. a list of the var structures for each top level argument;
-;;; 2. a flag indicating whether &KEY was specified;
-;;; 3. a flag indicating whether other &KEY args are allowed;
-;;; 4. a list of the &AUX variables; and
-;;; 5. a list of the &AUX values.
-(declaim (ftype (function (list) (values list boolean boolean list list))
- make-lambda-vars))
-(defun make-lambda-vars (list)
- (multiple-value-bind (required optional restp rest keyp keys allowp auxp aux
- morep more-context more-count)
- (parse-lambda-list list)
- (declare (ignore auxp)) ; since we just iterate over AUX regardless
- (collect ((vars)
- (names-so-far)
- (aux-vars)
- (aux-vals))
- (flet (;; PARSE-DEFAULT deals with defaults and supplied-p args
- ;; for optionals and keywords args.
- (parse-default (spec info)
- (when (consp (cdr spec))
- (setf (arg-info-default info) (second spec))
- (when (consp (cddr spec))
- (let* ((supplied-p (third spec))
- (supplied-var (varify-lambda-arg supplied-p
- (names-so-far))))
- (setf (arg-info-supplied-p info) supplied-var)
- (names-so-far supplied-p)
- (when (> (length (the list spec)) 3)
- (compiler-error
- "The list ~S is too long to be an arg specifier."
- spec)))))))
-
- (dolist (name required)
- (let ((var (varify-lambda-arg name (names-so-far))))
- (vars var)
- (names-so-far name)))
-
- (dolist (spec optional)
- (if (atom spec)
- (let ((var (varify-lambda-arg spec (names-so-far))))
- (setf (lambda-var-arg-info var)
- (make-arg-info :kind :optional))
- (vars var)
- (names-so-far spec))
- (let* ((name (first spec))
- (var (varify-lambda-arg name (names-so-far)))
- (info (make-arg-info :kind :optional)))
- (setf (lambda-var-arg-info var) info)
- (vars var)
- (names-so-far name)
- (parse-default spec info))))
-
- (when restp
- (let ((var (varify-lambda-arg rest (names-so-far))))
- (setf (lambda-var-arg-info var) (make-arg-info :kind :rest))
- (vars var)
- (names-so-far rest)))
-
- (when morep
- (let ((var (varify-lambda-arg more-context (names-so-far))))
- (setf (lambda-var-arg-info var)
- (make-arg-info :kind :more-context))
- (vars var)
- (names-so-far more-context))
- (let ((var (varify-lambda-arg more-count (names-so-far))))
- (setf (lambda-var-arg-info var)
- (make-arg-info :kind :more-count))
- (vars var)
- (names-so-far more-count)))
-
- (dolist (spec keys)
- (cond
- ((atom spec)
- (let ((var (varify-lambda-arg spec (names-so-far))))
- (setf (lambda-var-arg-info var)
- (make-arg-info :kind :keyword
- :key (make-keyword-for-arg spec
- (vars)
- t)))
- (vars var)
- (names-so-far spec)))
- ((atom (first spec))
- (let* ((name (first spec))
- (var (varify-lambda-arg name (names-so-far)))
- (info (make-arg-info
- :kind :keyword
- :key (make-keyword-for-arg name (vars) t))))
- (setf (lambda-var-arg-info var) info)
- (vars var)
- (names-so-far name)
- (parse-default spec info)))
- (t
- (let ((head (first spec)))
- (unless (proper-list-of-length-p head 2)
- (error "malformed &KEY argument specifier: ~S" spec))
- (let* ((name (second head))
- (var (varify-lambda-arg name (names-so-far)))
- (info (make-arg-info
- :kind :keyword
- :key (make-keyword-for-arg (first head)
- (vars)
- nil))))
- (setf (lambda-var-arg-info var) info)
- (vars var)
- (names-so-far name)
- (parse-default spec info))))))
-
- (dolist (spec aux)
- (cond ((atom spec)
- (let ((var (varify-lambda-arg spec nil)))
- (aux-vars var)
- (aux-vals nil)
- (names-so-far spec)))
- (t
- (unless (proper-list-of-length-p spec 1 2)
- (compiler-error "malformed &AUX binding specifier: ~S"
- spec))
- (let* ((name (first spec))
- (var (varify-lambda-arg name nil)))
- (aux-vars var)
- (aux-vals (second spec))
- (names-so-far name)))))
-
- (values (vars) keyp allowp (aux-vars) (aux-vals))))))
-
-;;; This is similar to IR1-CONVERT-PROGN-BODY except that we
-;;; sequentially bind each AUX-VAR to the corresponding AUX-VAL before
-;;; converting the body. If there are no bindings, just convert the
-;;; body, otherwise do one binding and recurse on the rest.
-;;;
-;;; FIXME: This could and probably should be converted to use
-;;; SOURCE-NAME and DEBUG-NAME. But I (WHN) don't use &AUX bindings,
-;;; so I'm not motivated. Patches will be accepted...
-(defun ir1-convert-aux-bindings (start cont body aux-vars aux-vals)
- (declare (type continuation start cont) (list body aux-vars aux-vals))
- (if (null aux-vars)
- (ir1-convert-progn-body start cont body)
- (let ((fun-cont (make-continuation))
- (fun (ir1-convert-lambda-body body
- (list (first aux-vars))
- :aux-vars (rest aux-vars)
- :aux-vals (rest aux-vals)
- :debug-name (debug-namify
- "&AUX bindings ~S"
- aux-vars))))
- (reference-leaf start fun-cont fun)
- (ir1-convert-combination-args fun-cont cont
- (list (first aux-vals)))))
- (values))
-
-;;; This is similar to IR1-CONVERT-PROGN-BODY except that code to bind
-;;; the SPECVAR for each SVAR to the value of the variable is wrapped
-;;; around the body. If there are no special bindings, we just convert
-;;; the body, otherwise we do one special binding and recurse on the
-;;; rest.
-;;;
-;;; We make a cleanup and introduce it into the lexical environment.
-;;; If there are multiple special bindings, the cleanup for the blocks
-;;; will end up being the innermost one. We force CONT to start a
-;;; block outside of this cleanup, causing cleanup code to be emitted
-;;; when the scope is exited.
-(defun ir1-convert-special-bindings (start cont body aux-vars aux-vals svars)
- (declare (type continuation start cont)
- (list body aux-vars aux-vals svars))
- (cond
- ((null svars)
- (ir1-convert-aux-bindings start cont body aux-vars aux-vals))
- (t
- (continuation-starts-block cont)
- (let ((cleanup (make-cleanup :kind :special-bind))
- (var (first svars))
- (next-cont (make-continuation))
- (nnext-cont (make-continuation)))
- (ir1-convert start next-cont
- `(%special-bind ',(lambda-var-specvar var) ,var))
- (setf (cleanup-mess-up cleanup) (continuation-use next-cont))
- (let ((*lexenv* (make-lexenv :cleanup cleanup)))
- (ir1-convert next-cont nnext-cont '(%cleanup-point))
- (ir1-convert-special-bindings nnext-cont cont body aux-vars aux-vals
- (rest svars))))))
- (values))
-
-;;; Create a lambda node out of some code, returning the result. The
-;;; bindings are specified by the list of VAR structures VARS. We deal
-;;; with adding the names to the LEXENV-VARS for the conversion. The
-;;; result is added to the NEW-FUNCTIONALS in the *CURRENT-COMPONENT*
-;;; and linked to the component head and tail.
-;;;
-;;; We detect special bindings here, replacing the original VAR in the
-;;; lambda list with a temporary variable. We then pass a list of the
-;;; special vars to IR1-CONVERT-SPECIAL-BINDINGS, which actually emits
-;;; the special binding code.
-;;;
-;;; We ignore any ARG-INFO in the VARS, trusting that someone else is
-;;; dealing with &nonsense.
-;;;
-;;; AUX-VARS is a list of VAR structures for variables that are to be
-;;; sequentially bound. Each AUX-VAL is a form that is to be evaluated
-;;; to get the initial value for the corresponding AUX-VAR.
-(defun ir1-convert-lambda-body (body
- vars
- &key
- aux-vars
- aux-vals
- result
- (source-name '.anonymous.)
- debug-name
- (note-lexical-bindings t))
- (declare (list body vars aux-vars aux-vals)
- (type (or continuation null) result))
-
- ;; We're about to try to put new blocks into *CURRENT-COMPONENT*.
- (aver-live-component *current-component*)
-
- (let* ((bind (make-bind))
- (lambda (make-lambda :vars vars
- :bind bind
- :%source-name source-name
- :%debug-name debug-name))
- (result (or result (make-continuation))))
-
- ;; just to check: This function should fail internal assertions if
- ;; we didn't set up a valid debug name above.
- ;;
- ;; (In SBCL we try to make everything have a debug name, since we
- ;; lack the omniscient perspective the original implementors used
- ;; to decide which things didn't need one.)
- (functional-debug-name lambda)
-
- (setf (lambda-home lambda) lambda)
- (collect ((svars)
- (new-venv nil cons))
-
- (dolist (var vars)
- ;; As far as I can see, LAMBDA-VAR-HOME should never have
- ;; been set before. Let's make sure. -- WHN 2001-09-29
- (aver (null (lambda-var-home var)))
- (setf (lambda-var-home var) lambda)
- (let ((specvar (lambda-var-specvar var)))
- (cond (specvar
- (svars var)
- (new-venv (cons (leaf-source-name specvar) specvar)))
- (t
- (when note-lexical-bindings
- (note-lexical-binding (leaf-source-name var)))
- (new-venv (cons (leaf-source-name var) var))))))
-
- (let ((*lexenv* (make-lexenv :vars (new-venv)
- :lambda lambda
- :cleanup nil)))
- (setf (bind-lambda bind) lambda)
- (setf (node-lexenv bind) *lexenv*)
-
- (let ((cont1 (make-continuation))
- (cont2 (make-continuation)))
- (continuation-starts-block cont1)
- (link-node-to-previous-continuation bind cont1)
- (use-continuation bind cont2)
- (ir1-convert-special-bindings cont2 result body
- aux-vars aux-vals (svars)))
-
- (let ((block (continuation-block result)))
- (when block
- (let ((return (make-return :result result :lambda lambda))
- (tail-set (make-tail-set :funs (list lambda)))
- (dummy (make-continuation)))
- (setf (lambda-tail-set lambda) tail-set)
- (setf (lambda-return lambda) return)
- (setf (continuation-dest result) return)
- (setf (continuation-%externally-checkable-type result) nil)
- (setf (block-last block) return)
- (link-node-to-previous-continuation return result)
- (use-continuation return dummy))
- (link-blocks block (component-tail *current-component*))))))
-
- (link-blocks (component-head *current-component*) (node-block bind))
- (push lambda (component-new-functionals *current-component*))
-
- lambda))
-
-;;; Create the actual entry-point function for an optional entry
-;;; point. The lambda binds copies of each of the VARS, then calls FUN
-;;; with the argument VALS and the DEFAULTS. Presumably the VALS refer
-;;; to the VARS by name. The VALS are passed in in reverse order.
-;;;
-;;; If any of the copies of the vars are referenced more than once,
-;;; then we mark the corresponding var as EVER-USED to inhibit
-;;; "defined but not read" warnings for arguments that are only used
-;;; by default forms.
-(defun convert-optional-entry (fun vars vals defaults)
- (declare (type clambda fun) (list vars vals defaults))
- (let* ((fvars (reverse vars))
- (arg-vars (mapcar (lambda (var)
- (make-lambda-var
- :%source-name (leaf-source-name var)
- :type (leaf-type var)
- :where-from (leaf-where-from var)
- :specvar (lambda-var-specvar var)))
- fvars))
- (fun (ir1-convert-lambda-body `((%funcall ,fun
- ,@(reverse vals)
- ,@defaults))
- arg-vars
- :debug-name "&OPTIONAL processor"
- :note-lexical-bindings nil)))
- (mapc (lambda (var arg-var)
- (when (cdr (leaf-refs arg-var))
- (setf (leaf-ever-used var) t)))
- fvars arg-vars)
- fun))
-
-;;; This function deals with supplied-p vars in optional arguments. If
-;;; the there is no supplied-p arg, then we just call
-;;; IR1-CONVERT-HAIRY-ARGS on the remaining arguments, and generate a
-;;; optional entry that calls the result. If there is a supplied-p
-;;; var, then we add it into the default vars and throw a T into the
-;;; entry values. The resulting entry point function is returned.
-(defun generate-optional-default-entry (res default-vars default-vals
- entry-vars entry-vals
- vars supplied-p-p body
- aux-vars aux-vals cont
- source-name debug-name)
- (declare (type optional-dispatch res)
- (list default-vars default-vals entry-vars entry-vals vars body
- aux-vars aux-vals)
- (type (or continuation null) cont))
- (let* ((arg (first vars))
- (arg-name (leaf-source-name arg))
- (info (lambda-var-arg-info arg))
- (supplied-p (arg-info-supplied-p info))
- (ep (if supplied-p
- (ir1-convert-hairy-args
- res
- (list* supplied-p arg default-vars)
- (list* (leaf-source-name supplied-p) arg-name default-vals)
- (cons arg entry-vars)
- (list* t arg-name entry-vals)
- (rest vars) t body aux-vars aux-vals cont
- source-name debug-name)
- (ir1-convert-hairy-args
- res
- (cons arg default-vars)
- (cons arg-name default-vals)
- (cons arg entry-vars)
- (cons arg-name entry-vals)
- (rest vars) supplied-p-p body aux-vars aux-vals cont
- source-name debug-name))))
-
- (convert-optional-entry ep default-vars default-vals
- (if supplied-p
- (list (arg-info-default info) nil)
- (list (arg-info-default info))))))
-
-;;; Create the MORE-ENTRY function for the OPTIONAL-DISPATCH RES.
-;;; ENTRY-VARS and ENTRY-VALS describe the fixed arguments. REST is
-;;; the var for any &REST arg. KEYS is a list of the &KEY arg vars.
-;;;
-;;; The most interesting thing that we do is parse keywords. We create
-;;; a bunch of temporary variables to hold the result of the parse,
-;;; and then loop over the supplied arguments, setting the appropriate
-;;; temps for the supplied keyword. Note that it is significant that
-;;; we iterate over the keywords in reverse order --- this implements
-;;; the CL requirement that (when a keyword appears more than once)
-;;; the first value is used.
-;;;
-;;; If there is no supplied-p var, then we initialize the temp to the
-;;; default and just pass the temp into the main entry. Since
-;;; non-constant &KEY args are forcibly given a supplied-p var, we
-;;; know that the default is constant, and thus safe to evaluate out
-;;; of order.
-;;;
-;;; If there is a supplied-p var, then we create temps for both the
-;;; value and the supplied-p, and pass them into the main entry,
-;;; letting it worry about defaulting.
-;;;
-;;; We deal with :ALLOW-OTHER-KEYS by delaying unknown keyword errors
-;;; until we have scanned all the keywords.
-(defun convert-more-entry (res entry-vars entry-vals rest morep keys)
- (declare (type optional-dispatch res) (list entry-vars entry-vals keys))
- (collect ((arg-vars)
- (arg-vals (reverse entry-vals))
- (temps)
- (body))
-
- (dolist (var (reverse entry-vars))
- (arg-vars (make-lambda-var :%source-name (leaf-source-name var)
- :type (leaf-type var)
- :where-from (leaf-where-from var))))
-
- (let* ((n-context (gensym "N-CONTEXT-"))
- (context-temp (make-lambda-var :%source-name n-context))
- (n-count (gensym "N-COUNT-"))
- (count-temp (make-lambda-var :%source-name n-count
- :type (specifier-type 'index))))
-
- (arg-vars context-temp count-temp)
-
- (when rest
- (arg-vals `(%listify-rest-args ,n-context ,n-count)))
- (when morep
- (arg-vals n-context)
- (arg-vals n-count))
-
- (when (optional-dispatch-keyp res)
- (let ((n-index (gensym "N-INDEX-"))
- (n-key (gensym "N-KEY-"))
- (n-value-temp (gensym "N-VALUE-TEMP-"))
- (n-allowp (gensym "N-ALLOWP-"))
- (n-losep (gensym "N-LOSEP-"))
- (allowp (or (optional-dispatch-allowp res)
- (policy *lexenv* (zerop safety))))
- (found-allow-p nil))
-
- (temps `(,n-index (1- ,n-count)) n-key n-value-temp)
- (body `(declare (fixnum ,n-index) (ignorable ,n-key ,n-value-temp)))
-
- (collect ((tests))
- (dolist (key keys)
- (let* ((info (lambda-var-arg-info key))
- (default (arg-info-default info))
- (keyword (arg-info-key info))
- (supplied-p (arg-info-supplied-p info))
- (n-value (gensym "N-VALUE-"))
- (clause (cond (supplied-p
- (let ((n-supplied (gensym "N-SUPPLIED-")))
- (temps n-supplied)
- (arg-vals n-value n-supplied)
- `((eq ,n-key ',keyword)
- (setq ,n-supplied t)
- (setq ,n-value ,n-value-temp))))
- (t
- (arg-vals n-value)
- `((eq ,n-key ',keyword)
- (setq ,n-value ,n-value-temp))))))
- (when (and (not allowp) (eq keyword :allow-other-keys))
- (setq found-allow-p t)
- (setq clause
- (append clause `((setq ,n-allowp ,n-value-temp)))))
-
- (temps `(,n-value ,default))
- (tests clause)))
-
- (unless allowp
- (temps n-allowp n-losep)
- (unless found-allow-p
- (tests `((eq ,n-key :allow-other-keys)
- (setq ,n-allowp ,n-value-temp))))
- (tests `(t
- (setq ,n-losep ,n-key))))
-
- (body
- `(when (oddp ,n-count)
- (%odd-key-args-error)))
-
- (body
- `(locally
- (declare (optimize (safety 0)))
- (loop
- (when (minusp ,n-index) (return))
- (setf ,n-value-temp (%more-arg ,n-context ,n-index))
- (decf ,n-index)
- (setq ,n-key (%more-arg ,n-context ,n-index))
- (decf ,n-index)
- (cond ,@(tests)))))
-
- (unless allowp
- (body `(when (and ,n-losep (not ,n-allowp))
- (%unknown-key-arg-error ,n-losep)))))))
-
- (let ((ep (ir1-convert-lambda-body
- `((let ,(temps)
- ,@(body)
- (%funcall ,(optional-dispatch-main-entry res)
- ,@(arg-vals))))
- (arg-vars)
- :debug-name (debug-namify "~S processing" '&more)
- :note-lexical-bindings nil)))
- (setf (optional-dispatch-more-entry res) ep))))
-
- (values))
-
-;;; This is called by IR1-CONVERT-HAIRY-ARGS when we run into a &REST
-;;; or &KEY arg. The arguments are similar to that function, but we
-;;; split off any &REST arg and pass it in separately. REST is the
-;;; &REST arg var, or NIL if there is no &REST arg. KEYS is a list of
-;;; the &KEY argument vars.
-;;;
-;;; When there are &KEY arguments, we introduce temporary gensym
-;;; variables to hold the values while keyword defaulting is in
-;;; progress to get the required sequential binding semantics.
-;;;
-;;; This gets interesting mainly when there are &KEY arguments with
-;;; supplied-p vars or non-constant defaults. In either case, pass in
-;;; a supplied-p var. If the default is non-constant, we introduce an
-;;; IF in the main entry that tests the supplied-p var and decides
-;;; whether to evaluate the default or not. In this case, the real
-;;; incoming value is NIL, so we must union NULL with the declared
-;;; type when computing the type for the main entry's argument.
-(defun ir1-convert-more (res default-vars default-vals entry-vars entry-vals
- rest more-context more-count keys supplied-p-p
- body aux-vars aux-vals cont
- source-name debug-name)
- (declare (type optional-dispatch res)
- (list default-vars default-vals entry-vars entry-vals keys body
- aux-vars aux-vals)
- (type (or continuation null) cont))
- (collect ((main-vars (reverse default-vars))
- (main-vals default-vals cons)
- (bind-vars)
- (bind-vals))
- (when rest
- (main-vars rest)
- (main-vals '()))
- (when more-context
- (main-vars more-context)
- (main-vals nil)
- (main-vars more-count)
- (main-vals 0))
-
- (dolist (key keys)
- (let* ((info (lambda-var-arg-info key))
- (default (arg-info-default info))
- (hairy-default (not (sb!xc:constantp default)))
- (supplied-p (arg-info-supplied-p info))
- (n-val (make-symbol (format nil
- "~A-DEFAULTING-TEMP"
- (leaf-source-name key))))
- (key-type (leaf-type key))
- (val-temp (make-lambda-var
- :%source-name n-val
- :type (if hairy-default
- (type-union key-type (specifier-type 'null))
- key-type))))
- (main-vars val-temp)
- (bind-vars key)
- (cond ((or hairy-default supplied-p)
- (let* ((n-supplied (gensym "N-SUPPLIED-"))
- (supplied-temp (make-lambda-var
- :%source-name n-supplied)))
- (unless supplied-p
- (setf (arg-info-supplied-p info) supplied-temp))
- (when hairy-default
- (setf (arg-info-default info) nil))
- (main-vars supplied-temp)
- (cond (hairy-default
- (main-vals nil nil)
- (bind-vals `(if ,n-supplied ,n-val ,default)))
- (t
- (main-vals default nil)
- (bind-vals n-val)))
- (when supplied-p
- (bind-vars supplied-p)
- (bind-vals n-supplied))))
- (t
- (main-vals (arg-info-default info))
- (bind-vals n-val)))))
-
- (let* ((main-entry (ir1-convert-lambda-body
- body (main-vars)
- :aux-vars (append (bind-vars) aux-vars)
- :aux-vals (append (bind-vals) aux-vals)
- :result cont
- :debug-name (debug-namify "varargs entry for ~A"
- (as-debug-name source-name
- debug-name))))
- (last-entry (convert-optional-entry main-entry default-vars
- (main-vals) ())))
- (setf (optional-dispatch-main-entry res) main-entry)
- (convert-more-entry res entry-vars entry-vals rest more-context keys)
-
- (push (if supplied-p-p
- (convert-optional-entry last-entry entry-vars entry-vals ())
- last-entry)
- (optional-dispatch-entry-points res))
- last-entry)))
-
-;;; This function generates the entry point functions for the
-;;; OPTIONAL-DISPATCH RES. We accomplish this by recursion on the list
-;;; of arguments, analyzing the arglist on the way down and generating
-;;; entry points on the way up.
-;;;
-;;; DEFAULT-VARS is a reversed list of all the argument vars processed
-;;; so far, including supplied-p vars. DEFAULT-VALS is a list of the
-;;; names of the DEFAULT-VARS.
-;;;
-;;; ENTRY-VARS is a reversed list of processed argument vars,
-;;; excluding supplied-p vars. ENTRY-VALS is a list things that can be
-;;; evaluated to get the values for all the vars from the ENTRY-VARS.
-;;; It has the var name for each required or optional arg, and has T
-;;; for each supplied-p arg.
-;;;
-;;; VARS is a list of the LAMBDA-VAR structures for arguments that
-;;; haven't been processed yet. SUPPLIED-P-P is true if a supplied-p
-;;; argument has already been processed; only in this case are the
-;;; DEFAULT-XXX and ENTRY-XXX different.
-;;;
-;;; The result at each point is a lambda which should be called by the
-;;; above level to default the remaining arguments and evaluate the
-;;; body. We cause the body to be evaluated by converting it and
-;;; returning it as the result when the recursion bottoms out.
-;;;
-;;; Each level in the recursion also adds its entry point function to
-;;; the result OPTIONAL-DISPATCH. For most arguments, the defaulting
-;;; function and the entry point function will be the same, but when
-;;; SUPPLIED-P args are present they may be different.
-;;;
-;;; When we run into a &REST or &KEY arg, we punt out to
-;;; IR1-CONVERT-MORE, which finishes for us in this case.
-(defun ir1-convert-hairy-args (res default-vars default-vals
- entry-vars entry-vals
- vars supplied-p-p body aux-vars
- aux-vals cont
- source-name debug-name)
- (declare (type optional-dispatch res)
- (list default-vars default-vals entry-vars entry-vals vars body
- aux-vars aux-vals)
- (type (or continuation null) cont))
- (cond ((not vars)
- (if (optional-dispatch-keyp res)
- ;; Handle &KEY with no keys...
- (ir1-convert-more res default-vars default-vals
- entry-vars entry-vals
- nil nil nil vars supplied-p-p body aux-vars
- aux-vals cont source-name debug-name)
- (let ((fun (ir1-convert-lambda-body
- body (reverse default-vars)
- :aux-vars aux-vars
- :aux-vals aux-vals
- :result cont
- :debug-name (debug-namify
- "hairy arg processor for ~A"
- (as-debug-name source-name
- debug-name)))))
- (setf (optional-dispatch-main-entry res) fun)
- (push (if supplied-p-p
- (convert-optional-entry fun entry-vars entry-vals ())
- fun)
- (optional-dispatch-entry-points res))
- fun)))
- ((not (lambda-var-arg-info (first vars)))
- (let* ((arg (first vars))
- (nvars (cons arg default-vars))
- (nvals (cons (leaf-source-name arg) default-vals)))
- (ir1-convert-hairy-args res nvars nvals nvars nvals
- (rest vars) nil body aux-vars aux-vals
- cont
- source-name debug-name)))
- (t
- (let* ((arg (first vars))
- (info (lambda-var-arg-info arg))
- (kind (arg-info-kind info)))
- (ecase kind
- (:optional
- (let ((ep (generate-optional-default-entry
- res default-vars default-vals
- entry-vars entry-vals vars supplied-p-p body
- aux-vars aux-vals cont
- source-name debug-name)))
- (push (if supplied-p-p
- (convert-optional-entry ep entry-vars entry-vals ())
- ep)
- (optional-dispatch-entry-points res))
- ep))
- (:rest
- (ir1-convert-more res default-vars default-vals
- entry-vars entry-vals
- arg nil nil (rest vars) supplied-p-p body
- aux-vars aux-vals cont
- source-name debug-name))
- (:more-context
- (ir1-convert-more res default-vars default-vals
- entry-vars entry-vals
- nil arg (second vars) (cddr vars) supplied-p-p
- body aux-vars aux-vals cont
- source-name debug-name))
- (:keyword
- (ir1-convert-more res default-vars default-vals
- entry-vars entry-vals
- nil nil nil vars supplied-p-p body aux-vars
- aux-vals cont source-name debug-name)))))))
-
-;;; This function deals with the case where we have to make an
-;;; OPTIONAL-DISPATCH to represent a LAMBDA. We cons up the result and
-;;; call IR1-CONVERT-HAIRY-ARGS to do the work. When it is done, we
-;;; figure out the MIN-ARGS and MAX-ARGS.
-(defun ir1-convert-hairy-lambda (body vars keyp allowp aux-vars aux-vals cont
- &key
- (source-name '.anonymous.)
- (debug-name (debug-namify
- "OPTIONAL-DISPATCH ~S"
- vars)))
- (declare (list body vars aux-vars aux-vals) (type continuation cont))
- (let ((res (make-optional-dispatch :arglist vars
- :allowp allowp
- :keyp keyp
- :%source-name source-name
- :%debug-name debug-name))
- (min (or (position-if #'lambda-var-arg-info vars) (length vars))))
- (aver-live-component *current-component*)
- (push res (component-new-functionals *current-component*))
- (ir1-convert-hairy-args res () () () () vars nil body aux-vars aux-vals
- cont source-name debug-name)
- (setf (optional-dispatch-min-args res) min)
- (setf (optional-dispatch-max-args res)
- (+ (1- (length (optional-dispatch-entry-points res))) min))
-
- (flet ((frob (ep)
- (when ep
- (setf (functional-kind ep) :optional)
- (setf (leaf-ever-used ep) t)
- (setf (lambda-optional-dispatch ep) res))))
- (dolist (ep (optional-dispatch-entry-points res)) (frob ep))
- (frob (optional-dispatch-more-entry res))
- (frob (optional-dispatch-main-entry res)))
-
- res))
-
-;;; Convert a LAMBDA form into a LAMBDA leaf or an OPTIONAL-DISPATCH leaf.
-(defun ir1-convert-lambda (form &key (source-name '.anonymous.)
- debug-name
- allow-debug-catch-tag)
-
- (unless (consp form)
- (compiler-error "A ~S was found when expecting a lambda expression:~% ~S"
- (type-of form)
- form))
- (unless (eq (car form) 'lambda)
- (compiler-error "~S was expected but ~S was found:~% ~S"
- 'lambda
- (car form)
- form))
- (unless (and (consp (cdr form)) (listp (cadr form)))
- (compiler-error
- "The lambda expression has a missing or non-list lambda list:~% ~S"
- form))
-
- (let ((*allow-debug-catch-tag* (and *allow-debug-catch-tag* allow-debug-catch-tag)))
- (multiple-value-bind (vars keyp allow-other-keys aux-vars aux-vals)
- (make-lambda-vars (cadr form))
- (multiple-value-bind (forms decls) (parse-body (cddr form))
- (let* ((result-cont (make-continuation))
- (*lexenv* (process-decls decls
- (append aux-vars vars)
- nil result-cont))
- (forms (if (and *allow-debug-catch-tag*
- (policy *lexenv* (> debug (max speed space))))
- `((catch (make-symbol "SB-DEBUG-CATCH-TAG")
- ,@forms))
- forms))
- (res (if (or (find-if #'lambda-var-arg-info vars) keyp)
- (ir1-convert-hairy-lambda forms vars keyp
- allow-other-keys
- aux-vars aux-vals result-cont
- :source-name source-name
- :debug-name debug-name)
- (ir1-convert-lambda-body forms vars
- :aux-vars aux-vars
- :aux-vals aux-vals
- :result result-cont
- :source-name source-name
- :debug-name debug-name))))
- (setf (functional-inline-expansion res) form)
- (setf (functional-arg-documentation res) (cadr form))
- res)))))
-
-;;; helper for LAMBDA-like things, to massage them into a form
-;;; suitable for IR1-CONVERT-LAMBDA.
-;;;
-;;; KLUDGE: We cons up a &REST list here, maybe for no particularly
-;;; good reason. It's probably lost in the noise of all the other
-;;; consing, but it's still inelegant. And we force our called
-;;; functions to do full runtime keyword parsing, ugh. -- CSR,
-;;; 2003-01-25
-(defun ir1-convert-lambdalike (thing &rest args
- &key (source-name '.anonymous.)
- debug-name allow-debug-catch-tag)
- (ecase (car thing)
- ((lambda) (apply #'ir1-convert-lambda thing args))
- ((instance-lambda)
- (let ((res (apply #'ir1-convert-lambda
- `(lambda ,@(cdr thing)) args)))
- (setf (getf (functional-plist res) :fin-function) t)
- res))
- ((named-lambda)
- (let ((name (cadr thing)))
- (if (legal-fun-name-p name)
- (let ((res (apply #'ir1-convert-lambda `(lambda ,@(cddr thing))
- :source-name name
- :debug-name nil
- args)))
- (assert-global-function-definition-type name res)
- res)
- (apply #'ir1-convert-lambda `(lambda ,@(cddr thing))
- :debug-name name args))))
- ((lambda-with-lexenv) (apply #'ir1-convert-inline-lambda thing args))))
-\f
-;;;; defining global functions
-
-;;; Convert FUN as a lambda in the null environment, but use the
-;;; current compilation policy. Note that FUN may be a
-;;; LAMBDA-WITH-LEXENV, so we may have to augment the environment to
-;;; reflect the state at the definition site.
-(defun ir1-convert-inline-lambda (fun &key
- (source-name '.anonymous.)
- debug-name
- allow-debug-catch-tag)
- (destructuring-bind (decls macros symbol-macros &rest body)
- (if (eq (car fun) 'lambda-with-lexenv)
- (cdr fun)
- `(() () () . ,(cdr fun)))
- (let ((*lexenv* (make-lexenv
- :default (process-decls decls nil nil
- (make-continuation)
- (make-null-lexenv))
- :vars (copy-list symbol-macros)
- :funs (mapcar (lambda (x)
- `(,(car x) .
- (macro . ,(coerce (cdr x) 'function))))
- macros)
- :policy (lexenv-policy *lexenv*))))
- (ir1-convert-lambda `(lambda ,@body)
- :source-name source-name
- :debug-name debug-name
- :allow-debug-catch-tag nil))))
-
-;;; Get a DEFINED-FUN object for a function we are about to define. If
-;;; the function has been forward referenced, then substitute for the
-;;; previous references.
-(defun get-defined-fun (name)
- (proclaim-as-fun-name name)
- (let ((found (find-free-fun name "shouldn't happen! (defined-fun)")))
- (note-name-defined name :function)
- (cond ((not (defined-fun-p found))
- (aver (not (info :function :inlinep name)))
- (let* ((where-from (leaf-where-from found))
- (res (make-defined-fun
- :%source-name name
- :where-from (if (eq where-from :declared)
- :declared :defined)
- :type (leaf-type found))))
- (substitute-leaf res found)
- (setf (gethash name *free-funs*) res)))
- ;; If *FREE-FUNS* has a previously converted definition
- ;; for this name, then blow it away and try again.
- ((defined-fun-functional found)
- (remhash name *free-funs*)
- (get-defined-fun name))
- (t found))))
-
-;;; Check a new global function definition for consistency with
-;;; previous declaration or definition, and assert argument/result
-;;; types if appropriate. This assertion is suppressed by the
-;;; EXPLICIT-CHECK attribute, which is specified on functions that
-;;; check their argument types as a consequence of type dispatching.
-;;; This avoids redundant checks such as NUMBERP on the args to +, etc.
-(defun assert-new-definition (var fun)
- (let ((type (leaf-type var))
- (for-real (eq (leaf-where-from var) :declared))
- (info (info :function :info (leaf-source-name var))))
- (assert-definition-type
- fun type
- ;; KLUDGE: Common Lisp is such a dynamic language that in general
- ;; all we can do here in general is issue a STYLE-WARNING. It
- ;; would be nice to issue a full WARNING in the special case of
- ;; of type mismatches within a compilation unit (as in section
- ;; 3.2.2.3 of the spec) but at least as of sbcl-0.6.11, we don't
- ;; keep track of whether the mismatched data came from the same
- ;; compilation unit, so we can't do that. -- WHN 2001-02-11
- :lossage-fun #'compiler-style-warn
- :unwinnage-fun (cond (info #'compiler-style-warn)
- (for-real #'compiler-note)
- (t nil))
- :really-assert
- (and for-real
- (not (and info
- (ir1-attributep (fun-info-attributes info)
- explicit-check))))
- :where (if for-real
- "previous declaration"
- "previous definition"))))
-
-;;; Convert a lambda doing all the basic stuff we would do if we were
-;;; converting a DEFUN. In the old CMU CL system, this was used both
-;;; by the %DEFUN translator and for global inline expansion, but
-;;; since sbcl-0.pre7.something %DEFUN does things differently.
-;;; FIXME: And now it's probably worth rethinking whether this
-;;; function is a good idea.
-;;;
-;;; Unless a :INLINE function, we temporarily clobber the inline
-;;; expansion. This prevents recursive inline expansion of
-;;; opportunistic pseudo-inlines.
-(defun ir1-convert-lambda-for-defun (lambda var expansion converter)
- (declare (cons lambda) (function converter) (type defined-fun var))
- (let ((var-expansion (defined-fun-inline-expansion var)))
- (unless (eq (defined-fun-inlinep var) :inline)
- (setf (defined-fun-inline-expansion var) nil))
- (let* ((name (leaf-source-name var))
- (fun (funcall converter lambda
- :source-name name))
- (fun-info (info :function :info name)))
- (setf (functional-inlinep fun) (defined-fun-inlinep var))
- (assert-new-definition var fun)
- (setf (defined-fun-inline-expansion var) var-expansion)
- ;; If definitely not an interpreter stub, then substitute for
- ;; any old references.
- (unless (or (eq (defined-fun-inlinep var) :notinline)
- (not *block-compile*)
- (and fun-info
- (or (fun-info-transforms fun-info)
- (fun-info-templates fun-info)
- (fun-info-ir2-convert fun-info))))
- (substitute-leaf fun var)
- ;; If in a simple environment, then we can allow backward
- ;; references to this function from following top level forms.
- (when expansion (setf (defined-fun-functional var) fun)))
- fun)))
-
-;;; the even-at-compile-time part of DEFUN
-;;;
-;;; The INLINE-EXPANSION is a LAMBDA-WITH-LEXENV, or NIL if there is
-;;; no inline expansion.
-(defun %compiler-defun (name lambda-with-lexenv)
-
- (let ((defined-fun nil)) ; will be set below if we're in the compiler
-
- (when (boundp '*lexenv*) ; when in the compiler
- (when sb!xc:*compile-print*
- (compiler-mumble "~&; recognizing DEFUN ~S~%" name))
- (remhash name *free-funs*)
- (setf defined-fun (get-defined-fun name)))
-
- (become-defined-fun-name name)
-
- (cond (lambda-with-lexenv
- (setf (info :function :inline-expansion-designator name)
- lambda-with-lexenv)
- (when defined-fun
- (setf (defined-fun-inline-expansion defined-fun)
- lambda-with-lexenv)))
- (t
- (clear-info :function :inline-expansion-designator name)))
-
- ;; old CMU CL comment:
- ;; If there is a type from a previous definition, blast it,
- ;; since it is obsolete.
- (when (and defined-fun
- (eq (leaf-where-from defined-fun) :defined))
- (setf (leaf-type defined-fun)
- ;; FIXME: If this is a block compilation thing, shouldn't
- ;; we be setting the type to the full derived type for the
- ;; definition, instead of this most general function type?
- (specifier-type 'function))))
-
- (values))
projects / sbcl.git / blobdiff