0.8alpha.0.9:
[sbcl.git] / src / compiler / ir1tran.lisp
index 19c2f89..c05b5d0 100644 (file)
   to optimize code which uses those definitions? Setting this true
   gives non-ANSI, early-CMU-CL behavior. It can be useful for improving
   the efficiency of stable code.")
+
+;;; *ALLOW-DEBUG-CATCH-TAG* controls whether we should allow the
+;;; insertion a (CATCH ...) around code to allow the debugger RETURN
+;;; command to function.
+(defvar *allow-debug-catch-tag* t)
 \f
 ;;;; namespace management utilities
 
 ;;; 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))
 (defun find-free-fun (name context)
-  (declare (string context))
-  #+nil (declare (values global-var))
   (or (let ((old-free-fun (gethash name *free-funs*)))
        (and (not (invalid-free-fun-p old-free-fun))
             old-free-fun))
 ;;; 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))
 (defun find-free-var (name)
-  #+nil (declare (values (or leaf cons heap-alien-info))) ; see FIXME comment
   (unless (symbolp name)
     (compiler-error "Variable name is not a symbol: ~S." name))
   (or (gethash name *free-vars*)
     (push node-block (block-pred block))
     (add-continuation-use node cont)
     (unless (eq (continuation-asserted-type cont) *wild-type*)
-      (let ((new (values-type-union (continuation-asserted-type cont)
-                                   (or (lexenv-find cont type-restrictions)
-                                       *wild-type*))))
-       (when (type/= new (continuation-asserted-type cont))
-         (setf (continuation-asserted-type cont) new)
+      (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))))))
 \f
 ;;;; exported functions
                                cont
                                form
                                &optional
-                               (proxy ``(error "execution of a form compiled with errors:~% ~S"
-                                               ',,form)))
+                               (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*
                                               opname
                                               :debug-name (debug-namify
                                                            "LAMBDA CAR ~S"
-                                                           opname)))))))))
+                                                           opname)
+                                              :allow-debug-catch-tag t))))))))
     (values))
 
   ;; Generate a reference to a manifest constant, creating a new leaf
 ;;; functional instead.
 (defun reference-leaf (start cont leaf)
   (declare (type continuation start cont) (type leaf leaf))
-  (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 (or (lexenv-find leaf type-restrictions)
-                           (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)))
+  (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))))
 
 ;;; Convert a reference to a symbolic constant or variable. If the
 ;;; symbol is entered in the LEXENV-VARS we use that definition,
   (values))
 
 ;;; Convert anything that looks like a special form, global function
-;;; or macro call.
+;;; or compiler-macro call.
 (defun ir1-convert-global-functoid (start cont form)
   (declare (type continuation start cont) (list form))
-  (let* ((fun (first form))
-        (translator (info :function :ir1-convert fun))
-        (cmacro (info :function :compiler-macro-function fun)))
-    (cond (translator (funcall translator start cont form))
-         ((and cmacro
-               (not (eq (info :function :inlinep fun)
-                        :notinline)))
-          (let ((res (careful-expand-macro cmacro 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))
+         ((and cmacro-fun
+               ;; gotcha: If you look up the DEFINE-COMPILER-MACRO
+               ;; macro in the ANSI spec, you might think that
+               ;; suppressing compiler-macro expansion when NOTINLINE
+               ;; is some pre-ANSI hack. However, if you look up the
+               ;; NOTINLINE declaration, you'll find that ANSI
+               ;; requires this behavior after all.
+               (not (eq (info :function :inlinep fun-name) :notinline)))
+          (let ((res (careful-expand-macro cmacro-fun form)))
             (if (eq res form)
-                (ir1-convert-global-functoid-no-cmacro start cont form fun)
+                (ir1-convert-global-functoid-no-cmacro
+                 start cont form fun-name)
                 (ir1-convert start cont res))))
          (t
-          (ir1-convert-global-functoid-no-cmacro start cont form fun)))))
+          (ir1-convert-global-functoid-no-cmacro start cont form fun-name)))))
 
 ;;; Handle the case of where the call was not a compiler macro, or was
 ;;; a compiler macro and passed.
                ;; or the cross-compiler which encountered the problem?"
                #+sb-xc-host "(in cross-compiler macroexpansion of ~S)"
                form))))
-      (handler-bind (;; When cross-compiling, we can get style warnings
-                     ;; about e.g. undefined functions. An unhandled
-                     ;; CL:STYLE-WARNING (as opposed to a
-                     ;; SB!C::COMPILER-NOTE) would cause FAILURE-P to be
-                     ;; set on the return from #'SB!XC:COMPILE-FILE, which
-                     ;; would falsely indicate an error sufficiently
-                     ;; serious that we should stop the build process. To
-                     ;; avoid this, we translate CL:STYLE-WARNING
-                     ;; conditions from the host Common Lisp into
-                     ;; cross-compiler SB!C::COMPILER-NOTE calls. (It
-                     ;; might be cleaner to just make Python use
-                     ;; CL:STYLE-WARNING internally, so that the
-                     ;; significance of any host Common Lisp
-                     ;; CL:STYLE-WARNINGs is understood automatically. But
-                     ;; for now I'm not motivated to do this. -- WHN
-                     ;; 19990412)
-                     (style-warning (lambda (c)
-                                      (compiler-note "~@<~A~:@_~A~:@_~A~:>"
-                                                    (wherestring) hint c)
-                                      (muffle-warning-or-die)))
-                     ;; KLUDGE: CMU CL in its wisdom (version 2.4.6 for
+      (handler-bind ((style-warning (lambda (c)
+                                     (compiler-style-warn
+                                      "~@<~A~:@_~A~@:_~A~:>"
+                                      (wherestring) hint c)
+                                     (muffle-warning-or-die)))
+                    ;; KLUDGE: CMU CL in its wisdom (version 2.4.6 for
                      ;; Debian Linux, anyway) raises a CL:WARNING
                      ;; condition (not a CL:STYLE-WARNING) for undefined
                      ;; symbols when converting interpreted functions,
                      ;; and this code does so, by crudely suppressing all
                      ;; warnings in cross-compilation macroexpansion. --
                      ;; WHN 19990412
-                     #+cmu
+                     #+(and cmu sb-xc-host)
                      (warning (lambda (c)
                                 (compiler-note
                                  "~@<~A~:@_~
                                  (wherestring)
                                  c)
                                 (muffle-warning-or-die)))
+                    #-(and cmu sb-xc-host)
+                    (warning (lambda (c)
+                               (compiler-warn "~@<~A~:@_~A~@:_~A~:>"
+                                              (wherestring) hint c)
+                               (muffle-warning-or-die)))
                      (error (lambda (c)
                               (compiler-error "~@<~A~:@_~A~@:_~A~:>"
                                               (wherestring) hint c))))
   (let ((node (make-combination fun-cont)))
     (setf (continuation-dest fun-cont) node)
     (assert-continuation-type fun-cont
-                             (specifier-type '(or function symbol)))
+                             (specifier-type '(or function symbol))
+                              (lexenv-policy *lexenv*))
+    (setf (continuation-%externally-checkable-type fun-cont) nil)
     (collect ((arg-conts))
       (let ((this-start fun-cont))
        (dolist (arg args)
 ;;; macro, we just wrap a THE around the expansion.
 (defun process-type-decl (decl res vars)
   (declare (list decl vars) (type lexenv res))
-  (let ((type (specifier-type (first decl))))
+  (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 (list spec names fvars) (type lexenv res))
-  (let ((type (specifier-type spec)))
+  (declare (type type-specifier spec)
+           (type list names fvars)
+           (type lexenv res))
+  (let ((type (compiler-specifier-type spec)))
     (collect ((res nil cons))
       (dolist (name names)
        (let ((found (find name fvars
        )
        ((functional-p var)
        (setf (leaf-ever-used var) t))
-       ((lambda-var-specvar var)
+       ((and (lambda-var-specvar var) (eq (first spec) 'ignore))
        ;; ANSI's definition for "Declaration IGNORE, IGNORABLE"
        ;; requires that this be a STYLE-WARNING, not a full WARNING.
        (compiler-style-warn "declaring special variable ~S to be ignored"
                                       `(values ,@types))
                                   cont
                                   res
-                                  'values))))
+                                  "in VALUES declaration"))))
       (dynamic-extent
        (when (policy *lexenv* (> speed inhibit-warnings))
         (compiler-note
           (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. We also check that the
-;;; keyword isn't the magical :ALLOW-OTHER-KEYS.
+;;; 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)))
-    (when (eq key :allow-other-keys)
-      (compiler-error "No &KEY arg can be called :ALLOW-OTHER-KEYS."))
     (dolist (var vars)
       (let ((info (lambda-var-arg-info var)))
        (when (and info
 (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 aux
+  (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
                                result
                                (source-name '.anonymous.)
-                               debug-name)
+                               debug-name
+                                (note-lexical-bindings t))
   (declare (list body vars aux-vars aux-vals)
           (type (or continuation null) result))
 
                 (svars var)
                 (new-venv (cons (leaf-source-name specvar) specvar)))
                (t
-                (note-lexical-binding (leaf-source-name var))
+                 (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)
                                   :cleanup nil)))
        (setf (bind-lambda bind) lambda)
        (setf (node-lexenv bind) *lexenv*)
-       
+
        (let ((cont1 (make-continuation))
-             (cont2 (make-continuation))
-             (revised-body (if (policy bind
-                                       (or (> safety
-                                              (max speed space))
-                                           (= safety 3)))
-                               ;; (Stuffing this in at IR1 level like
-                               ;; this is pretty crude. And it's
-                               ;; particularly inefficient to execute
-                               ;; it on *every* LAMBDA, including
-                               ;; LET-converted LAMBDAs. Improvements
-                               ;; are welcome, but meanwhile, when
-                               ;; SAFETY is high, it's still arguably
-                               ;; an improvement over the old CMU CL
-                               ;; approach of doing nothing (waiting
-                               ;; for evolution to breed careful
-                               ;; users:-). -- WHN)
-                               `((%detect-stack-exhaustion)
-                                 ,@body)
-                               body)))
+             (cont2 (make-continuation)))
          (continuation-starts-block cont1)
          (link-node-to-previous-continuation bind cont1)
          (use-continuation bind cont2)
-         (ir1-convert-special-bindings cont2 result
-                                       revised-body
+         (ir1-convert-special-bindings cont2 result body
                                        aux-vars aux-vals (svars)))
 
        (let ((block (continuation-block result)))
              (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))
   (declare (type clambda fun) (list vars vals defaults))
   (let* ((fvars (reverse vars))
         (arg-vars (mapcar (lambda (var)
-                            (unless (lambda-var-specvar var)
-                              (note-lexical-binding (leaf-source-name 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")))
+        (fun (collect ((default-bindings)
+                        (default-vals))
+                (dolist (default defaults)
+                  (if (constantp default)
+                      (default-vals default)
+                      (let ((var (gensym)))
+                        (default-bindings `(,var ,default))
+                        (default-vals var))))
+                (ir1-convert-lambda-body `((let (,@(default-bindings))
+                                             (%funcall ,fun
+                                                       ,@(reverse vals)
+                                                       ,@(default-vals))))
+                                         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)))
              (n-allowp (gensym "N-ALLOWP-"))
              (n-losep (gensym "N-LOSEP-"))
              (allowp (or (optional-dispatch-allowp res)
-                         (policy *lexenv* (zerop safety)))))
+                         (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)))
                     (default (arg-info-default info))
                     (keyword (arg-info-key info))
                     (supplied-p (arg-info-supplied-p info))
-                    (n-value (gensym "N-VALUE-")))
-               (temps `(,n-value ,default))
-               (cond (supplied-p
-                      (let ((n-supplied (gensym "N-SUPPLIED-")))
-                        (temps n-supplied)
-                        (arg-vals n-value n-supplied)
-                        (tests `((eq ,n-key ',keyword)
-                                 (setq ,n-supplied t)
-                                 (setq ,n-value ,n-value-temp)))))
-                     (t
-                      (arg-vals n-value)
-                      (tests `((eq ,n-key ',keyword)
-                               (setq ,n-value ,n-value-temp)))))))
+                    (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)
-             (tests `((eq ,n-key :allow-other-keys)
-                      (setq ,n-allowp ,n-value-temp)))
+              (unless found-allow-p
+                (tests `((eq ,n-key :allow-other-keys)
+                         (setq ,n-allowp ,n-value-temp))))
              (tests `(t
                       (setq ,n-losep ,n-key))))
 
                 `((let ,(temps)
                     ,@(body)
                     (%funcall ,(optional-dispatch-main-entry res)
-                              . ,(arg-vals)))) ; FIXME: What is the '.'? ,@?
+                              ,@(arg-vals))))
                 (arg-vars)
-                :debug-name (debug-namify "~S processing" '&more))))
+                :debug-name (debug-namify "~S processing" '&more)
+                 :note-lexical-bindings nil)))
        (setf (optional-dispatch-more-entry res) ep))))
 
   (values))
     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)
+(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"
      "The lambda expression has a missing or non-list lambda list:~%  ~S"
      form))
 
-  (multiple-value-bind (vars keyp allow-other-keys aux-vars aux-vals)
-      (make-lambda-vars (cadr form))
-    (multiple-value-bind (forms decls) (sb!sys:parse-body (cddr form))
-      (let* ((result-cont (make-continuation))
-            (*lexenv* (process-decls decls
-                                     (append aux-vars vars)
-                                     nil result-cont))
-            (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))))
+  (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
 
 ;;; reflect the state at the definition site.
 (defun ir1-convert-inline-lambda (fun &key
                                      (source-name '.anonymous.)
-                                     debug-name)
+                                     debug-name
+                                     allow-debug-catch-tag)
   (destructuring-bind (decls macros symbol-macros &rest body)
                      (if (eq (car fun) 'lambda-with-lexenv)
                          (cdr fun)
                     :policy (lexenv-policy *lexenv*))))
       (ir1-convert-lambda `(lambda ,@body)
                          :source-name source-name
-                         :debug-name debug-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.
+;;; 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)")))
       (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.
+      ;; 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