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Remove "pop" from $prompt

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* module/language/cps.scm:
* module/language/cps/closure-conversion.scm:
* module/language/cps/compile-bytecode.scm:
* module/language/cps/dfg.scm:
* module/language/cps/slot-allocation.scm:
* module/language/cps/verify.scm:
* module/language/tree-il/compile-cps.scm: Remove "pop" member from
  $prompt data type, as it is no longer used.
This commit is contained in:
Andy Wingo 2014-01-09 19:52:58 +01:00
parent 146ce52d21
commit 7ab76a830b
7 changed files with 24 additions and 26 deletions
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19
module/language/cps.scm
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@ -1,6 +1,6 @@
;;; Continuation-passing style (CPS) intermediate language (IL)
;; Copyright (C) 2013 Free Software Foundation, Inc.
;; Copyright (C) 2013, 2014 Free Software Foundation, Inc.
;;;; This library is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU Lesser General Public
@ -85,8 +85,7 @@
;;; - $prompt continues to the body of the prompt, having pushed on a
;;; prompt whose handler will continue at its "handler"
;;; continuation. The continuation of the prompt is responsible for
;;; popping the prompt. A $prompt also records the continuation
;;; that pops the prompt, to make various static analyses easier.
;;; popping the prompt.
;;;
;;; In summary:
;;;
@ -185,7 +184,7 @@
(define-cps-type $call proc args)
(define-cps-type $primcall name args)
(define-cps-type $values args)
(define-cps-type $prompt escape? tag handler pop)
(define-cps-type $prompt escape? tag handler)
(define-syntax let-gensyms
(syntax-rules ()
@ -240,8 +239,8 @@
((_ ($primcall name args)) (make-$primcall name args))
((_ ($values (arg ...))) (make-$values (list arg ...)))
((_ ($values args)) (make-$values args))
((_ ($prompt escape? tag handler pop))
(make-$prompt escape? tag handler pop))))
((_ ($prompt escape? tag handler))
(make-$prompt escape? tag handler))))
(define-syntax build-cps-term
(syntax-rules (unquote $letk $letk* $letconst $letrec $continue)
@ -341,8 +340,8 @@
(build-cps-exp ($primcall name arg)))
(('values arg ...)
(build-cps-exp ($values arg)))
(('prompt escape? tag handler pop)
(build-cps-exp ($prompt escape? tag handler pop)))
(('prompt escape? tag handler)
(build-cps-exp ($prompt escape? tag handler)))
(_
(error "unexpected cps" exp))))
@ -397,8 +396,8 @@
`(primcall ,name ,@args))
(($ $values args)
`(values ,@args))
(($ $prompt escape? tag handler pop)
`(prompt ,escape? ,tag ,handler ,pop))
(($ $prompt escape? tag handler)
`(prompt ,escape? ,tag ,handler))
(_
(error "unexpected cps" exp))))