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;;;; Assembly to bytecode compilation -*- mode: scheme; coding: utf-8; -*-
;;;;
;;;; Copyright (C) 2010, 2011, 2012, 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
;;;; 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
(define-module (tests asm-to-bytecode)
#:use-module (rnrs bytevectors)
#:use-module ((rnrs io ports) #:select (open-bytevector-output-port))
#:use-module (test-suite lib)
#:use-module (system vm instruction)
#:use-module (system vm objcode)
#:use-module (system base target)
#:use-module (language assembly)
#:use-module (language assembly compile-bytecode))
(define (->u8-list sym val)
(let ((entry (assq-ref `((uint16 2 ,bytevector-u16-native-set!)
(uint32 4 ,bytevector-u32-native-set!))
sym)))
(or entry (error "unknown sym" sym))
(let ((bv (make-bytevector (car entry))))
((cadr entry) bv 0 val)
(bytevector->u8-list bv))))
(define (munge-bytecode v)
(let lp ((i 0) (out '()))
(if (= i (vector-length v))
(u8-list->bytevector (reverse out))
(let ((x (vector-ref v i)))
(cond
((symbol? x)
(lp (1+ i) (cons (instruction->opcode x) out)))
((integer? x)
(lp (1+ i) (cons x out)))
((pair? x)
(lp (1+ i) (append (reverse (apply ->u8-list x)) out)))
(else (error "bad test bytecode" x)))))))
(define (comp-test x y)
(let* ((y (munge-bytecode y))
(len (bytevector-length y))
(v #f))
(run-test `(length ,x) #t
(lambda ()
(let* ((wrapped `(load-program () ,(byte-length x) #f ,x))
(bv (compile-bytecode wrapped '())))
(set! v (make-bytevector (- (bytevector-length bv) 8)))
(bytevector-copy! bv 8 v 0 (bytevector-length v))
(= (bytevector-length v) len))))
(run-test `(compile-equal? ,x ,y) #t
(lambda ()
(equal? v y)))))
(with-test-prefix "compiler"
(with-test-prefix "asm-to-bytecode"
(comp-test '(make-int8 3)
#(make-int8 3))
(comp-test '(load-number "3.14")
(vector 'load-number 0 0 4 (char->integer #\3) (char->integer #\.)
(char->integer #\1) (char->integer #\4)))
(comp-test '(load-string "foo")
(vector 'load-string 0 0 3 (char->integer #\f) (char->integer #\o)
(char->integer #\o)))
(comp-test '(load-symbol "foo")
(vector 'load-symbol 0 0 3 (char->integer #\f) (char->integer #\o)
(char->integer #\o)))
(comp-test '(load-string "æ") ;; a non-ASCII Latin-1 string
(vector 'load-string 0 0 1 230))
(comp-test '(load-wide-string "λ")
(apply vector 'load-wide-string 0 0 4
(if (eq? (native-endianness) (endianness little))
'(187 3 0 0)
'(0 0 3 187))))
(comp-test '(load-program () 3 #f (make-int8 3) (return))
#(load-program
(uint32 3) ;; len
(uint32 0) ;; metalen
make-int8 3
return))
;; the nops are to pad meta to an 8-byte alignment. not strictly
;; necessary for this test, but representative of the common case.
(comp-test '(load-program () 8
(load-program () 3
#f
(make-int8 3) (return))
(make-int8 3) (return)
(nop) (nop) (nop) (nop) (nop))
#(load-program
(uint32 8) ;; len
(uint32 11) ;; metalen
make-int8 3
return
nop nop nop nop nop
(uint32 3) ;; len
(uint32 0) ;; metalen
make-int8 3
return))))
(define (test-triplet cpu vendor os)
(let ((triplet (string-append cpu "-" vendor "-" os)))
(pass-if (format #f "triplet ~a" triplet)
(with-target triplet
(lambda ()
(and (string=? (target-cpu) cpu)
(string=? (target-vendor) vendor)
(string=? (target-os) os)))))))
(define (native-cpu)
(with-target %host-type target-cpu))
(define (native-os)
(with-target %host-type target-os))
(define (native-word-size)
((@ (system foreign) sizeof) '*))
(define %objcode-cookie-size
(string-length "GOOF----LE-8-2.0"))
(define (test-target triplet endian word-size)
(pass-if (format #f "target `~a' honored" triplet)
(call-with-values (lambda ()
(open-bytevector-output-port))
(lambda (p get-objcode)
(with-target triplet
(lambda ()
(let ((word-size
;; When the target is the native CPU, rather trust
;; the native CPU's word size. This is because
;; Debian's `sparc64-linux-gnu' port, for instance,
;; actually has a 32-bit user-land, for instance (see
;; <http://www.debian.org/ports/sparc/#sparc64bit>
;; for details.)
(if (and (string=? (native-cpu) (target-cpu))
(string=? (native-os) (target-os)))
(native-word-size)
word-size))
(b (compile-bytecode
'(load-program () 16 #f
(assert-nargs-ee/locals 1)
(make-int8 77)
(toplevel-ref 1)
(local-ref 0)
(mul)
(add)
(return)
(nop) (nop) (nop)
(nop) (nop))
#f)))
(write-objcode (bytecode->objcode b) p)
(let ((cookie (make-bytevector %objcode-cookie-size))
(expected (format #f "GOOF----~a-~a-~a"
(cond ((eq? endian (endianness little))
"LE")
((eq? endian (endianness big))
"BE")
(else
(error "unknown endianness"
endian)))
word-size
(effective-version))))
(bytevector-copy! (get-objcode) 0 cookie 0
%objcode-cookie-size)
(string=? (utf8->string cookie) expected)))))))))
(with-test-prefix "cross-compilation"
(test-triplet "i586" "pc" "gnu0.3")
(test-triplet "x86_64" "unknown" "linux-gnu")
(test-triplet "x86_64" "unknown" "kfreebsd-gnu")
(test-target "i586-pc-gnu0.3" (endianness little) 4)
(test-target "x86_64-pc-linux-gnu" (endianness little) 8)
(test-target "powerpc-unknown-linux-gnu" (endianness big) 4)
(test-target "sparc64-unknown-freebsd8.2" (endianness big) 8)
(test-target "mips64el-unknown-linux-gnu" ; n32 or o32 ABI
(endianness little) 4)
(test-target "mips64el-unknown-linux-gnuabi64" ; n64 ABI (Debian tuplet)
(endianness little) 8)
(test-target "x86_64-unknown-linux-gnux32" ; x32 ABI (Debian tuplet)
(endianness little) 4)
(test-target "arm-unknown-linux-androideabi"
(endianness little) 4)
(test-target "armeb-unknown-linux-gnu"
(endianness big) 4)
(test-target "aarch64-linux-gnu"
(endianness little) 8)
(test-target "aarch64_be-linux-gnu"
(endianness big) 8)
(pass-if-exception "unknown target"
exception:miscellaneous-error
(call-with-values (lambda ()
(open-bytevector-output-port))
(lambda (p get-objcode)
(let* ((b (compile-bytecode '(load-program () 3 #f
(make-int8 77)
(return))
#f))
(o (bytecode->objcode b)))
(with-target "fcpu-unknown-gnu1.0"
(lambda ()
(write-objcode o p))))))))
;; Local Variables:
;; eval: (put 'with-target 'scheme-indent-function 1)
;; End:
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