\f
;;;; COMPILE-FILE
-;;; We build a list of top level lambdas, and then periodically smash
-;;; them together into a single component and compile it.
-(defvar *pending-toplevel-lambdas*)
-
-;;; The maximum number of top level lambdas we put in a single
-;;; top level component.
-;;;
-;;; CMU CL 18b used this nontrivially by default (setting it to 10)
-;;; but consequently suffered from the inability to execute some
-;;; troublesome constructs correctly, e.g. inability to load a fasl
-;;; file compiled from the source file
-;;; (defpackage "FOO" (:use "CL"))
-;;; (print 'foo::bar)
-;;; because it would dump data-setup fops (including a FOP-PACKAGE for
-;;; "FOO") for the second form before dumping the the code in the
-;;; first form, or the fop to execute the code in the first form. By
-;;; setting this value to 0 by default, we avoid this badness. This
-;;; increases the number of toplevel form functions, and so increases
-;;; the size of object files.
-;;;
-;;; The variable is still supported because when we are compiling the
-;;; SBCL system itself, which is known not contain any troublesome
-;;; constructs, we can set it to a nonzero value, which reduces the
-;;; number of toplevel form objects, reducing the peak memory usage in
-;;; GENESIS, which is desirable, since at least for SBCL version
-;;; 0.6.7, this is the high water mark for memory usage during system
-;;; construction.
-(defparameter *toplevel-lambda-max* 0)
-
(defun object-call-toplevel-lambda (tll)
(declare (type functional tll))
(let ((object *compile-object*))
(etypecase object
- (fasl-output
- (fasl-dump-toplevel-lambda-call tll object))
- (core-object
- (core-call-toplevel-lambda tll object))
+ (fasl-output (fasl-dump-toplevel-lambda-call tll object))
+ (core-object (core-call-toplevel-lambda tll object))
(null))))
-;;; Add LAMBDAS to the pending lambdas. If this leaves more than
-;;; *TOPLEVEL-LAMBDA-MAX* lambdas in the list, or if FORCE-P is true,
-;;; then smash the lambdas into a single component, compile it, and
-;;; call the resulting function.
-(defun sub-compile-toplevel-lambdas (lambdas force-p)
+;;; Smash LAMBDAS into a single component, compile it, and arrange for
+;;; the resulting function to be called.
+(defun sub-compile-toplevel-lambdas (lambdas)
(declare (list lambdas))
- (setq *pending-toplevel-lambdas*
- (append *pending-toplevel-lambdas* lambdas))
- (let ((pending *pending-toplevel-lambdas*))
- (when (and pending
- (or (> (length pending) *toplevel-lambda-max*)
- force-p))
- (multiple-value-bind (component tll) (merge-toplevel-lambdas pending)
- (setq *pending-toplevel-lambdas* ())
- (compile-component component)
- (clear-ir1-info component)
- (object-call-toplevel-lambda tll))))
+ (when lambdas
+ (multiple-value-bind (component tll) (merge-toplevel-lambdas lambdas)
+ (compile-component component)
+ (clear-ir1-info component)
+ (object-call-toplevel-lambda tll)))
(values))
;;; Compile top level code and call the top level lambdas. We pick off
;;; top level lambdas in non-top-level components here, calling
;;; SUB-c-t-l-l on each subsequence of normal top level lambdas.
-(defun compile-toplevel-lambdas (lambdas force-p)
+(defun compile-toplevel-lambdas (lambdas)
(declare (list lambdas))
(let ((len (length lambdas)))
(flet ((loser (start)
len)))
(do* ((start 0 (1+ loser))
(loser (loser start) (loser start)))
- ((>= start len)
- (when force-p
- (sub-compile-toplevel-lambdas nil t)))
- (sub-compile-toplevel-lambdas (subseq lambdas start loser)
- (or force-p (/= loser len)))
+ ((>= start len))
+ (sub-compile-toplevel-lambdas (subseq lambdas start loser))
(unless (= loser len)
(object-call-toplevel-lambda (elt lambdas loser))))))
(values))
(maybe-mumble "IDFO ")
(multiple-value-bind (components top-components hairy-top)
(find-initial-dfo lambdas)
- (let ((*all-components* (append components top-components))
- (toplevel-closure nil))
+ (let ((*all-components* (append components top-components)))
(when *check-consistency*
(maybe-mumble "[check]~%")
(check-ir1-consistency *all-components*))
(dolist (component (append hairy-top top-components))
- (when (pre-physenv-analyze-toplevel component)
- (setq toplevel-closure t)))
+ (pre-physenv-analyze-toplevel component))
(dolist (component components)
(compile-component component)
- (when (replace-toplevel-xeps component)
- (setq toplevel-closure t)))
+ (replace-toplevel-xeps component))
(when *check-consistency*
(maybe-mumble "[check]~%")
(if load-time-value-p
(compile-load-time-value-lambda lambdas)
- (compile-toplevel-lambdas lambdas toplevel-closure))
+ (compile-toplevel-lambdas lambdas))
(mapc #'clear-ir1-info components)
(clear-stuff)))
(sb!xc:*compile-file-pathname* nil)
(sb!xc:*compile-file-truename* nil)
(*toplevel-lambdas* ())
- (*pending-toplevel-lambdas* ())
(*compiler-error-bailout*
(lambda ()
(compiler-mumble "~2&; fatal error, aborting compilation~%")
(sub-sub-compile-file info)
(finish-block-compilation)
- (compile-toplevel-lambdas () t)
(let ((object *compile-object*))
(etypecase object
(fasl-output (fasl-dump-source-info info object))
(:ignore-it
nil)
(t
- (compile-toplevel-lambdas () t)
(when (fasl-constant-already-dumped-p constant *compile-object*)
(return-from emit-make-load-form nil))
(let* ((name (let ((*print-level* 1) (*print-length* 2))
projects / sbcl.git / blobdiff