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Add bind-optionals instruction

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* doc/ref/vm.texi (Function Prologue Instructions): Document new
  instruction.
* libguile/jit.c (compile_bind_optionals): New compiler.
* libguile/vm-engine.c (VM_NAME): New interpreter.
* module/system/vm/assembler.scm (opt-prelude): Emit bind-optionals as
  appropriate.
* module/system/vm/disassembler.scm (define-stack-effect-parser)
  (code-annotation): Handle bind-optionals.
This commit is contained in:
Andy Wingo 2019-06-06 16:20:20 +02:00
parent 12d6e43176
commit 9fd978ed7e
5 changed files with 73 additions and 9 deletions
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6
module/system/vm/disassembler.scm
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@ -1,6 +1,6 @@
;;; Guile bytecode disassembler
;;; Copyright (C) 2001, 2009-2010, 2012-2015, 2017-2018 Free Software Foundation, Inc.
;;; Copyright (C) 2001, 2009-2010, 2012-2015, 2017-2019 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
@ -231,6 +231,8 @@ address of that offset."
(('assert-nargs-ee/locals nargs locals)
;; The nargs includes the procedure.
(list "~a slot~:p (~a arg~:p)" (+ locals nargs) (1- nargs)))
(('bind-optionals nargs)
(list "~a args~:p" (1- nargs)))
(('alloc-frame nlocals)
(list "~a slot~:p" nlocals))
(('reset-frame nlocals)
@ -546,7 +548,7 @@ address of that offset."
#'(lambda (code pos size)
(let ((count (ash (bytevector-u32-native-ref code pos) -8)))
(and size (- size count)))))
((alloc-frame reset-frame)
((alloc-frame reset-frame bind-optionals)
#'(lambda (code pos size)
(let ((nlocals (ash (bytevector-u32-native-ref code pos) -8)))
nlocals)))