0f87473105
* module/language/c99/compiler.mes (struct->fields): Support bit-fields. (ast->type): (field-field): (field-offset): (expr->accu*): (expr->accu): (struct-field): (->size): * module/language/c99/info.scm (<bit-field>): New type. * stage0/x86.M1 (and____$i32,%eax, and____(%edx),%eax, mov____(%edx),%eax, or____(%edx),%eax): New macro. * module/mes/as-i386.mes (i386:base-mem->accu): Use it. (i386:accu-and, i386:accu-and-base-mem, i386:accu-or-base-mem): New function. * module/mes/as-i386.scm: Export them. * scaffold/tests/7q-bit-field.c: Test it. * build-aux/check-mescc.sh (tests): Run it.
266 lines
6.9 KiB
Scheme
266 lines
6.9 KiB
Scheme
;;; -*-scheme-*-
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;;; Mes --- Maxwell Equations of Software
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;;; Copyright © 2016,2017,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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;;;
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;;; This file is part of Mes.
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;;;
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;;; Mes is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; Mes is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with Mes. If not, see <http://www.gnu.org/licenses/>.
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;;; info.scm defines [Guile] record data types for compiler.mes
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;;; Code:
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(define-module (language c99 info)
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#:use-module (ice-9 optargs)
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#:use-module (srfi srfi-9)
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#:use-module (srfi srfi-9 gnu)
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#:use-module (srfi srfi-26)
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#:export (<info>
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make
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make-<info>
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info?
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.types
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.constants
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.functions
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.globals
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.locals
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.function
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.statics
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.text
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.post
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.break
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.continue
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<type>
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make-type
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type?
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type:type
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type:size
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type:pointer
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type:description
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<c-array>
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make-c-array
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c-array?
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c-array:type
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c-array:count
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<pointer>
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make-pointer
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pointer?
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pointer:type
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pointer:rank
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<bit-field>
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make-bit-field
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bit-field?
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bit-field:type
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bit-field:bit
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bit-field:bits
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<var>
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var:name
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var:type
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var:pointer
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var:c-array
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<global>
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make-global
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global?
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global:name
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global:type
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global:pointer
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global:c-array
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global:var
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global:value
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global:function
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global->string
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<local>
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make-local
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local?
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local:type
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local:pointer
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local:c-array
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local:var
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local:id
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<function>
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make-function
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function?
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function:name
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function:type
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function:text
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function->string
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->type
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->rank
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rank--
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rank++
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rank+=
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structured-type?))
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(cond-expand
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(guile-2)
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(guile
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(use-modules (ice-9 syncase))
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(use-modules (ice-9 optargs)))
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(mes
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(mes-use-module (mes optargs))))
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(define-immutable-record-type <info>
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(make-<info> types constants functions globals locals statics function text post break continue)
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info?
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(types .types)
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(constants .constants)
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(functions .functions)
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(globals .globals)
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(locals .locals)
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(statics .statics)
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(function .function)
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(text .text)
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(post .post)
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(break .break)
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(continue .continue))
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(define* (make o #:key (types '()) (constants '()) (functions '()) (globals '()) (locals '()) (statics '()) (function #f) (text '()) (post '()) (break '()) (continue '()))
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(make-<info> types constants functions globals locals statics function text post break continue))
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;; ("int" . ,(make-type 'builtin 4 #f 0 #f))
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;; (make-type 'enum 4 0 fields)
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;; (make-type 'struct (apply + (map field:size fields)) 0 fields)
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(define-immutable-record-type <type>
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(make-type type size description)
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type?
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(type type:type)
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(size type:size)
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(description type:description))
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(define-immutable-record-type <c-array>
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(make-c-array type count)
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c-array?
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(type c-array:type)
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(count c-array:count))
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(define-immutable-record-type <pointer>
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(make-pointer type rank)
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pointer?
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(type pointer:type)
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(rank pointer:rank))
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(define-immutable-record-type <bit-field>
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(make-bit-field type bit bits)
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bit-field?
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(type bit-field:type)
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(bit bit-field:bit)
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(bits bit-field:bits))
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(define-immutable-record-type <var>
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(make-var name type function id value)
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var?
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(name var:name)
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(type var:type) ; <type>
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(function var:function)
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(id var:id)
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(value var:value))
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(define-immutable-record-type <global>
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(make-global- name type var value function)
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global?
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(name global:name)
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(type global:type)
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(var global:var) ; <var>
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(value global:value)
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(function global:function))
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(define (make-global name type value function)
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(make-global- name type (make-var name type function #f value) value function))
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(define (global->string o)
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(or (and=> (global:function o) (cut string-append <> "-" (global:name o)))
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(global:name o)))
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(define-immutable-record-type <local>
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(make-local- type var id)
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local?
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(type local:type)
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(var local:var) ; <var>
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(id local:id))
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(define (make-local name type id)
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(make-local- type (make-var name type #f id #f) id))
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(define-immutable-record-type <function>
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(make-function name type text)
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function?
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(name function:name)
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(type function:type)
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(text function:text))
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(define (function->string o)
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(function:name o))
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(define (structured-type? o)
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(cond ((type? o) (memq (type:type o) '(struct union)))
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((global? o) ((compose structured-type? global:type) o))
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((local? o) ((compose structured-type? local:type) o))
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((and (pair? o) (eq? (car o) 'tag))) ;; FIXME: enum?
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(else #f)))
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(define (->type o)
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(cond ((type? o) o)
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((bit-field? o) o)
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((pointer? o) (pointer:type o))
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((c-array? o) (c-array:type o))
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((and (pair? o) (eq? (car o) 'tag)) o)
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;; FIXME
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(#t
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(format (current-error-port) "->type--: not a <type>: ~s\n" o)
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(make-type 'builtin 4 #f))
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(else (error "->type: not a <type>:" o))))
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(define (->rank o)
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(cond ((type? o) 0)
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((pointer? o) (pointer:rank o))
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((c-array? o) (1+ ((compose ->rank c-array:type) o)))
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((local? o) ((compose ->rank local:type) o))
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((global? o) ((compose ->rank global:type) o))
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((bit-field? o) 0)
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;; FIXME
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(#t
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(format (current-error-port) "->rank: not a type: ~s\n" o)
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0)
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(else (error "->rank: not a <type>:" o))))
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(define (rank-- o)
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(cond ((and (pointer? o) (= (pointer:rank o) 1)) (pointer:type o))
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((pointer? o) (set-field o (pointer:rank) (1- (pointer:rank o))))
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((c-array? o) (c-array:type o))
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;; FIXME
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(#t (format (current-error-port) "rank--: not a pointer: ~s\n" o)
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o)
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(else (error "rank--: not a pointer" o))))
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(define (rank+= o i)
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(cond ((pointer? o) (set-field o (pointer:rank) (+ i (pointer:rank o))))
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(else (make-pointer o i))))
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(define (rank++ o)
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(rank+= o 1))
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