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guile/module/language/bytecode.scm
Andy Wingo dff85f6f9f Explode atomic box ops to new atomic instructions
* libguile/instructions.c (FOR_EACH_INSTRUCTION_WORD_TYPE): Add C8_S24
  word type.
* libguile/vm-engine.c (UNPACK_8_24): New helper.
  (atomic-scm-ref/immediate, atomic-scm-set!/immediate)
  (atomic-swap-scm!/immediate, atomic-scm-compare-and-swap!/immediate):
  New instructions.
  (make-atomic-box, atomic-box-ref, atomic-box-set!, atomic-box-swap!)
  (atomic-box-compare-and-swap!): Disable these ops.
* module/language/bytecode.scm (compute-instruction-arity): Add C8_S24
  support.
* module/system/vm/assembler.scm: Add C8_S24 support.  Export assemblers
  for new opcodes.
* module/system/vm/disassembler.scm (disassembler): Support C8_S24.
* module/language/cps/compile-bytecode.scm (compile-function): Replace
  old atomic-box assemblers with the new instructions.
* module/language/cps/effects-analysis.scm (annotation->memory-kind):
* module/language/cps/types.scm (annotation->type): Add cases for atomic
  boxes.  Mark as all memory kinds because atomic ops serialize memory
  accesses.
* module/language/tree-il/compile-cps.scm (make-atomic-box):
  (ensure-atomic-box, atomic-box-ref, atomic-box-set!):
  (atomic-box-swap!, atomic-box-compare-and-swap!): Explode these ops to
  more basic instructions.
* module/system/base/types/internal.scm (%tc7-atomic-box): Add forgotten
  export.
2018-04-13 10:09:56 +02:00

130 lines
3.9 KiB
Scheme

;;; Bytecode
;; Copyright (C) 2013, 2017, 2018 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
;;;; License as published by the Free Software Foundation; either
;;;; version 3 of the License, or (at your option) any later version.
;;;;
;;;; This library is distributed in the hope that it will be useful,
;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;;;; Lesser General Public License for more details.
;;;;
;;;; You should have received a copy of the GNU Lesser General Public
;;;; License along with this library; if not, write to the Free Software
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
;;; Code:
(define-module (language bytecode)
#:use-module (ice-9 match)
#:use-module ((srfi srfi-1) #:select (fold))
#:export (instruction-list
instruction-arity
builtin-name->index
builtin-index->name
intrinsic-name->index
intrinsic-index->name))
(load-extension (string-append "libguile-" (effective-version))
"scm_init_instructions")
(load-extension (string-append "libguile-" (effective-version))
"scm_init_vm_builtins")
(load-extension (string-append "libguile-" (effective-version))
"scm_init_intrinsics")
(define (compute-instruction-arity name args)
(define (first-word-arity word)
(case word
((X32) 0)
((X8_S24) 1)
((X8_F24) 1)
((X8_C24) 1)
((X8_L24) 1)
((X8_S8_I16) 2)
((X8_S12_S12) 2)
((X8_S12_C12) 2)
((X8_S12_Z12) 2)
((X8_C12_C12) 2)
((X8_F12_F12) 2)
((X8_S8_S8_S8) 3)
((X8_S8_S8_C8) 3)
((X8_S8_C8_S8) 3)))
(define (tail-word-arity word)
(case word
((C32) 1)
((I32) 1)
((A32 AU32 AS32 AF32) 1)
((B32 BF32 BS32 BU32) 0)
((N32) 1)
((R32) 1)
((L32) 1)
((LO32) 1)
((C8_C24) 2)
((C8_S24) 2)
((C16_C16) 2)
((B1_C7_L24) 3)
((B1_X7_S24) 2)
((B1_X7_F24) 2)
((B1_X7_C24) 2)
((B1_X7_L24) 2)
((B1_X31) 1)
((X8_S24) 1)
((X8_F24) 1)
((X8_C24) 1)
((X8_L24) 1)))
(match args
((arg0 . args)
(fold (lambda (arg arity)
(+ (tail-word-arity arg) arity))
(first-word-arity arg0)
args))))
(define *macro-instruction-arities*
'((cache-current-module! . (0 . 1))
(cached-toplevel-box . (1 . 0))
(cached-module-box . (1 . 0))))
(define (compute-instruction-arities)
(let ((table (make-hash-table)))
(for-each
(match-lambda
;; Put special cases here.
((name op '! . args)
(hashq-set! table name
(cons 0 (compute-instruction-arity name args))))
((name op '<- . args)
(hashq-set! table name
(cons 1 (1- (compute-instruction-arity name args))))))
(instruction-list))
(for-each (match-lambda
((name . arity)
(hashq-set! table name arity)))
*macro-instruction-arities*)
table))
(define *instruction-arities* (delay (compute-instruction-arities)))
(define (instruction-arity name)
(hashq-ref (force *instruction-arities*) name))
(define *intrinsic-codes*
(delay (let ((tab (make-hash-table)))
(for-each (lambda (pair)
(hashv-set! tab (car pair) (cdr pair)))
(intrinsic-list))
tab)))
(define *intrinsic-names*
(delay (let ((tab (make-hash-table)))
(hash-for-each (lambda (k v) (hashq-set! tab v k))
(force *intrinsic-codes*))
tab)))
(define (intrinsic-name->index name)
(hashq-ref (force *intrinsic-codes*) name))
(define (intrinsic-index->name index)
(hashv-ref (force *intrinsic-names*) index))