;;; Guile bytecode assembler
-;;; Copyright (C) 2001, 2009, 2010, 2012, 2013, 2014 Free Software Foundation, Inc.
+;;; Copyright (C) 2001, 2009, 2010, 2012, 2013, 2014, 2015 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
#:use-module (srfi srfi-9)
#:use-module (srfi srfi-11)
#:export (make-assembler
+
+ emit-call
+ emit-call-label
+ emit-tail-call
+ emit-tail-call-label
+ (emit-receive* . emit-receive)
+ emit-receive-values
+ emit-return
+ emit-return-values
+ emit-call/cc
+ emit-abort
+ (emit-builtin-ref* . emit-builtin-ref)
+ emit-br-if-nargs-ne
+ emit-br-if-nargs-lt
+ emit-br-if-nargs-gt
+ emit-assert-nargs-ee
+ emit-assert-nargs-ge
+ emit-assert-nargs-le
+ emit-alloc-frame
+ emit-reset-frame
+ emit-assert-nargs-ee/locals
+ emit-br-if-npos-gt
+ emit-bind-kwargs
+ emit-bind-rest
+ emit-br
+ emit-br-if-true
+ emit-br-if-null
+ emit-br-if-nil
+ emit-br-if-pair
+ emit-br-if-struct
+ emit-br-if-char
+ emit-br-if-tc7
+ (emit-br-if-eq* . emit-br-if-eq)
+ (emit-br-if-eqv* . emit-br-if-eqv)
+ (emit-br-if-equal* . emit-br-if-equal)
+ (emit-br-if-=* . emit-br-if-=)
+ (emit-br-if-<* . emit-br-if-<)
+ (emit-br-if-<=* . emit-br-if-<=)
+ (emit-br-if-logtest* . emit-br-if-logtest)
+ (emit-mov* . emit-mov)
+ (emit-box* . emit-box)
+ (emit-box-ref* . emit-box-ref)
+ (emit-box-set!* . emit-box-set!)
+ emit-make-closure
+ (emit-free-ref* . emit-free-ref)
+ (emit-free-set!* . emit-free-set!)
+ emit-current-module
+ emit-resolve
+ (emit-define!* . emit-define!)
+ emit-toplevel-box
+ emit-module-box
+ emit-prompt
+ (emit-wind* . emit-wind)
+ emit-unwind
+ (emit-push-fluid* . emit-push-fluid)
+ emit-pop-fluid
+ (emit-fluid-ref* . emit-fluid-ref)
+ (emit-fluid-set* . emit-fluid-set)
+ (emit-string-length* . emit-string-length)
+ (emit-string-ref* . emit-string-ref)
+ (emit-string->number* . emit-string->number)
+ (emit-string->symbol* . emit-string->symbol)
+ (emit-symbol->keyword* . emit-symbol->keyword)
+ (emit-cons* . emit-cons)
+ (emit-car* . emit-car)
+ (emit-cdr* . emit-cdr)
+ (emit-set-car!* . emit-set-car!)
+ (emit-set-cdr!* . emit-set-cdr!)
+ (emit-add* . emit-add)
+ (emit-add1* . emit-add1)
+ (emit-sub* . emit-sub)
+ (emit-sub1* . emit-sub1)
+ (emit-mul* . emit-mul)
+ (emit-div* . emit-div)
+ (emit-quo* . emit-quo)
+ (emit-rem* . emit-rem)
+ (emit-mod* . emit-mod)
+ (emit-ash* . emit-ash)
+ (emit-logand* . emit-logand)
+ (emit-logior* . emit-logior)
+ (emit-logxor* . emit-logxor)
+ (emit-make-vector* . emit-make-vector)
+ (emit-make-vector/immediate* . emit-make-vector/immediate)
+ (emit-vector-length* . emit-vector-length)
+ (emit-vector-ref* . emit-vector-ref)
+ (emit-vector-ref/immediate* . emit-vector-ref/immediate)
+ (emit-vector-set!* . emit-vector-set!)
+ (emit-vector-set!/immediate* . emit-vector-set!/immediate)
+ (emit-struct-vtable* . emit-struct-vtable)
+ (emit-allocate-struct/immediate* . emit-allocate-struct/immediate)
+ (emit-struct-ref/immediate* . emit-struct-ref/immediate)
+ (emit-struct-set!/immediate* . emit-struct-set!/immediate)
+ (emit-allocate-struct* . emit-allocate-struct)
+ (emit-struct-ref* . emit-struct-ref)
+ (emit-struct-set!* . emit-struct-set!)
+ (emit-class-of* . emit-class-of)
+ (emit-make-array* . emit-make-array)
+ (emit-bv-u8-ref* . emit-bv-u8-ref)
+ (emit-bv-s8-ref* . emit-bv-s8-ref)
+ (emit-bv-u16-ref* . emit-bv-u16-ref)
+ (emit-bv-s16-ref* . emit-bv-s16-ref)
+ (emit-bv-u32-ref* . emit-bv-u32-ref)
+ (emit-bv-s32-ref* . emit-bv-s32-ref)
+ (emit-bv-u64-ref* . emit-bv-u64-ref)
+ (emit-bv-s64-ref* . emit-bv-s64-ref)
+ (emit-bv-f32-ref* . emit-bv-f32-ref)
+ (emit-bv-f64-ref* . emit-bv-f64-ref)
+ (emit-bv-u8-set!* . emit-bv-u8-set!)
+ (emit-bv-s8-set!* . emit-bv-s8-set!)
+ (emit-bv-u16-set!* . emit-bv-u16-set!)
+ (emit-bv-s16-set!* . emit-bv-s16-set!)
+ (emit-bv-u32-set!* . emit-bv-u32-set!)
+ (emit-bv-s32-set!* . emit-bv-s32-set!)
+ (emit-bv-u64-set!* . emit-bv-u64-set!)
+ (emit-bv-s64-set!* . emit-bv-s64-set!)
+ (emit-bv-f32-set!* . emit-bv-f32-set!)
+ (emit-bv-f64-set!* . emit-bv-f64-set!)
+
emit-text
link-assembly))
;; Like define-inlinable, but only for first-order uses of the defined
;; routine. Should residualize less code.
-(define-syntax define-inline
- (lambda (x)
- (syntax-case x ()
- ((_ (name arg ...) body ...)
- (with-syntax (((temp ...) (generate-temporaries #'(arg ...))))
- #`(define-syntax-rule (name temp ...)
- (let ((arg temp) ...)
- body ...)))))))
+(eval-when (expand)
+ (define-syntax define-inline
+ (lambda (x)
+ (syntax-case x ()
+ ((_ (name arg ...) body ...)
+ (with-syntax (((temp ...) (generate-temporaries #'(arg ...))))
+ #`(eval-when (expand)
+ (define-syntax-rule (name temp ...)
+ (let ((arg temp) ...)
+ body ...)))))))))
;;; Bytecode consists of 32-bit units, often subdivided in some way.
;;; These helpers create one 32-bit unit from multiple components.
(error "out of range" z))
(logior x (ash y 8) (ash z 16) (ash w 24)))
-(define-syntax pack-flags
- (syntax-rules ()
- ;; Add clauses as needed.
- ((pack-flags f1 f2) (logior (if f1 (ash 1 0) 0)
- (if f2 (ash 2 0) 0)))))
+(eval-when (expand)
+ (define-syntax pack-flags
+ (syntax-rules ()
+ ;; Add clauses as needed.
+ ((pack-flags f1 f2) (logior (if f1 (ash 1 0) 0)
+ (if f2 (ash 2 0) 0))))))
;;; Helpers to read and write 32-bit units in a buffer.
-(define-syntax-rule (u32-ref buf n)
+(define-inline (u32-ref buf n)
(bytevector-u32-native-ref buf (* n 4)))
-(define-syntax-rule (u32-set! buf n val)
+(define-inline (u32-set! buf n val)
(bytevector-u32-native-set! buf (* n 4) val))
-(define-syntax-rule (s32-ref buf n)
+(define-inline (s32-ref buf n)
(bytevector-s32-native-ref buf (* n 4)))
-(define-syntax-rule (s32-set! buf n val)
+(define-inline (s32-set! buf n val)
(bytevector-s32-native-set! buf (* n 4) val))
;;; A <meta> entry collects metadata for one procedure. Procedures are
;;; written as contiguous ranges of bytecode.
;;;
-(define-syntax-rule (assert-match arg pattern kind)
- (let ((x arg))
- (unless (match x (pattern #t) (_ #f))
- (error (string-append "expected " kind) x))))
+(eval-when (expand)
+ (define-syntax-rule (assert-match arg pattern kind)
+ (let ((x arg))
+ (unless (match x (pattern #t) (_ #f))
+ (error (string-append "expected " kind) x)))))
(define-record-type <meta>
(%make-meta label properties low-pc high-pc arities)
(high-pc arity-high-pc set-arity-high-pc!)
(definitions arity-definitions set-arity-definitions!))
-(define-syntax *block-size* (identifier-syntax 32))
+(eval-when (expand)
+ (define-syntax *block-size* (identifier-syntax 32)))
;;; An assembler collects all of the words emitted during assembly, and
;;; also maintains ancillary information such as the constant table, a
constants inits
shstrtab next-section-number
meta sources
- dead-slot-maps)
+ dead-slot-maps
+ to-file?)
asm?
;; We write bytecode into what is logically a growable vector,
;; DEAD-SLOT-MAP is a bitfield of slots that are dead at call sites,
;; as an integer.
;;
- (dead-slot-maps asm-dead-slot-maps set-asm-dead-slot-maps!))
+ (dead-slot-maps asm-dead-slot-maps set-asm-dead-slot-maps!)
+ (to-file? asm-to-file?))
(define-inline (fresh-block)
(make-u32vector *block-size*))
(define* (make-assembler #:key (word-size (target-word-size))
- (endianness (target-endianness)))
+ (endianness (target-endianness))
+ (to-file? #t))
"Create an assembler for a given target @var{word-size} and
@var{endianness}, falling back to appropriate values for the configured
target."
word-size endianness
vlist-null '()
(make-string-table) 1
- '() '() '()))
+ '() '() '() to-file?))
(define (intern-section-name! asm string)
"Add a string to the section name table (shstrtab)."
;;; opcode in `(instruction-list)'.
;;;
-(eval-when (expand compile load eval)
+(eval-when (expand)
(define (id-append ctx a b)
- (datum->syntax ctx (symbol-append (syntax->datum a) (syntax->datum b)))))
-
-(define-syntax assembler
- (lambda (x)
- (define-syntax op-case
- (lambda (x)
- (syntax-case x ()
- ((_ asm name ((type arg ...) code ...) clause ...)
- #`(if (eq? name 'type)
- (with-syntax (((arg ...) (generate-temporaries #'(arg ...))))
- #'((arg ...)
- code ...))
- (op-case asm name clause ...)))
- ((_ asm name)
- #'(error "unmatched name" name)))))
-
- (define (pack-first-word asm opcode type)
- (with-syntax ((opcode opcode))
+ (datum->syntax ctx (symbol-append (syntax->datum a) (syntax->datum b))))
+
+ (define-syntax assembler
+ (lambda (x)
+ (define-syntax op-case
+ (lambda (x)
+ (syntax-case x ()
+ ((_ asm name ((type arg ...) code ...) clause ...)
+ #`(if (eq? name 'type)
+ (with-syntax (((arg ...) (generate-temporaries #'(arg ...))))
+ #'((arg ...)
+ code ...))
+ (op-case asm name clause ...)))
+ ((_ asm name)
+ #'(error "unmatched name" name)))))
+
+ (define (pack-first-word asm opcode type)
+ (with-syntax ((opcode opcode))
+ (op-case
+ asm type
+ ((U8_X24)
+ (emit asm opcode))
+ ((U8_U24 arg)
+ (emit asm (pack-u8-u24 opcode arg)))
+ ((U8_L24 label)
+ (record-label-reference asm label)
+ (emit asm opcode))
+ ((U8_U8_I16 a imm)
+ (emit asm (pack-u8-u8-u16 opcode a (object-address imm))))
+ ((U8_U12_U12 a b)
+ (emit asm (pack-u8-u12-u12 opcode a b)))
+ ((U8_U8_U8_U8 a b c)
+ (emit asm (pack-u8-u8-u8-u8 opcode a b c))))))
+
+ (define (pack-tail-word asm type)
(op-case
asm type
- ((U8_X24)
- (emit asm opcode))
- ((U8_U24 arg)
- (emit asm (pack-u8-u24 opcode arg)))
- ((U8_L24 label)
+ ((U8_U24 a b)
+ (emit asm (pack-u8-u24 a b)))
+ ((U8_L24 a label)
(record-label-reference asm label)
- (emit asm opcode))
- ((U8_U8_I16 a imm)
- (emit asm (pack-u8-u8-u16 opcode a (object-address imm))))
- ((U8_U12_U12 a b)
- (emit asm (pack-u8-u12-u12 opcode a b)))
- ((U8_U8_U8_U8 a b c)
- (emit asm (pack-u8-u8-u8-u8 opcode a b c))))))
-
- (define (pack-tail-word asm type)
- (op-case
- asm type
- ((U8_U24 a b)
- (emit asm (pack-u8-u24 a b)))
- ((U8_L24 a label)
- (record-label-reference asm label)
- (emit asm a))
- ((U32 a)
- (emit asm a))
- ((I32 imm)
- (let ((val (object-address imm)))
- (unless (zero? (ash val -32))
- (error "FIXME: enable truncation of negative fixnums when cross-compiling"))
- (emit asm val)))
- ((A32 imm)
- (unless (= (asm-word-size asm) 8)
- (error "make-long-immediate unavailable for this target"))
- (emit asm (ash (object-address imm) -32))
- (emit asm (logand (object-address imm) (1- (ash 1 32)))))
- ((B32))
- ((N32 label)
- (record-far-label-reference asm label)
- (emit asm 0))
- ((S32 label)
- (record-far-label-reference asm label)
- (emit asm 0))
- ((L32 label)
- (record-far-label-reference asm label)
- (emit asm 0))
- ((LO32 label offset)
- (record-far-label-reference asm label
- (* offset (/ (asm-word-size asm) 4)))
- (emit asm 0))
- ((X8_U24 a)
- (emit asm (pack-u8-u24 0 a)))
- ((X8_L24 label)
- (record-label-reference asm label)
- (emit asm 0))
- ((B1_X7_L24 a label)
- (record-label-reference asm label)
- (emit asm (pack-u1-u7-u24 (if a 1 0) 0 0)))
- ((B1_U7_L24 a b label)
- (record-label-reference asm label)
- (emit asm (pack-u1-u7-u24 (if a 1 0) b 0)))
- ((B1_X31 a)
- (emit asm (pack-u1-u7-u24 (if a 1 0) 0 0)))
- ((B1_X7_U24 a b)
- (emit asm (pack-u1-u7-u24 (if a 1 0) 0 b)))))
-
- (syntax-case x ()
- ((_ name opcode word0 word* ...)
- (with-syntax ((((formal0 ...)
- code0 ...)
- (pack-first-word #'asm
- (syntax->datum #'opcode)
- (syntax->datum #'word0)))
- ((((formal* ...)
- code* ...) ...)
- (map (lambda (word) (pack-tail-word #'asm word))
- (syntax->datum #'(word* ...)))))
- #'(lambda (asm formal0 ... formal* ... ...)
- (unless (asm? asm) (error "not an asm"))
- code0 ...
- code* ... ...
- (reset-asm-start! asm)))))))
+ (emit asm a))
+ ((U32 a)
+ (emit asm a))
+ ((I32 imm)
+ (let ((val (object-address imm)))
+ (unless (zero? (ash val -32))
+ (error "FIXME: enable truncation of negative fixnums when cross-compiling"))
+ (emit asm val)))
+ ((A32 imm)
+ (unless (= (asm-word-size asm) 8)
+ (error "make-long-immediate unavailable for this target"))
+ (emit asm (ash (object-address imm) -32))
+ (emit asm (logand (object-address imm) (1- (ash 1 32)))))
+ ((B32))
+ ((N32 label)
+ (record-far-label-reference asm label)
+ (emit asm 0))
+ ((S32 label)
+ (record-far-label-reference asm label)
+ (emit asm 0))
+ ((L32 label)
+ (record-far-label-reference asm label)
+ (emit asm 0))
+ ((LO32 label offset)
+ (record-far-label-reference asm label
+ (* offset (/ (asm-word-size asm) 4)))
+ (emit asm 0))
+ ((X8_U24 a)
+ (emit asm (pack-u8-u24 0 a)))
+ ((X8_L24 label)
+ (record-label-reference asm label)
+ (emit asm 0))
+ ((B1_X7_L24 a label)
+ (record-label-reference asm label)
+ (emit asm (pack-u1-u7-u24 (if a 1 0) 0 0)))
+ ((B1_U7_L24 a b label)
+ (record-label-reference asm label)
+ (emit asm (pack-u1-u7-u24 (if a 1 0) b 0)))
+ ((B1_X31 a)
+ (emit asm (pack-u1-u7-u24 (if a 1 0) 0 0)))
+ ((B1_X7_U24 a b)
+ (emit asm (pack-u1-u7-u24 (if a 1 0) 0 b)))))
+
+ (syntax-case x ()
+ ((_ name opcode word0 word* ...)
+ (with-syntax ((((formal0 ...)
+ code0 ...)
+ (pack-first-word #'asm
+ (syntax->datum #'opcode)
+ (syntax->datum #'word0)))
+ ((((formal* ...)
+ code* ...) ...)
+ (map (lambda (word) (pack-tail-word #'asm word))
+ (syntax->datum #'(word* ...)))))
+ #'(lambda (asm formal0 ... formal* ... ...)
+ (unless (asm? asm) (error "not an asm"))
+ code0 ...
+ code* ... ...
+ (reset-asm-start! asm))))))))
(define assemblers (make-hash-table))
-(define-syntax define-assembler
- (lambda (x)
- (syntax-case x ()
- ((_ name opcode kind arg ...)
- (with-syntax ((emit (id-append #'name #'emit- #'name)))
- #'(begin
- (define emit
+(eval-when (expand)
+ (define-syntax define-assembler
+ (lambda (x)
+ (syntax-case x ()
+ ((_ name opcode kind arg ...)
+ (with-syntax ((emit (id-append #'name #'emit- #'name)))
+ #'(define emit
(let ((emit (assembler name opcode arg ...)))
(hashq-set! assemblers 'name emit)
- emit))
- (export emit)))))))
-
-(define-syntax visit-opcodes
- (lambda (x)
- (syntax-case x ()
- ((visit-opcodes macro arg ...)
- (with-syntax (((inst ...)
- (map (lambda (x) (datum->syntax #'macro x))
- (instruction-list))))
- #'(begin
- (macro arg ... . inst)
- ...))))))
+ emit)))))))
+
+ (define-syntax visit-opcodes
+ (lambda (x)
+ (syntax-case x ()
+ ((visit-opcodes macro arg ...)
+ (with-syntax (((inst ...)
+ (map (lambda (x) (datum->syntax #'macro x))
+ (instruction-list))))
+ #'(begin
+ (macro arg ... . inst)
+ ...)))))))
(visit-opcodes define-assembler)
+(eval-when (expand)
+
+ ;; Some operands are encoded using a restricted subset of the full
+ ;; 24-bit local address space, in order to make the bytecode more
+ ;; dense in the usual case that there are few live locals. Here we
+ ;; define wrapper emitters that shuffle out-of-range operands into and
+ ;; out of the reserved range of locals [233,255]. This range is
+ ;; sufficient because these restricted operands are only present in
+ ;; the first word of an instruction. Since 8 bits is the smallest
+ ;; slot-addressing operand size, that means we can fit 3 operands in
+ ;; the 24 bits of payload of the first word (the lower 8 bits being
+ ;; taken by the opcode).
+ ;;
+ ;; The result are wrapper emitters with the same arity,
+ ;; e.g. emit-cons* that wraps emit-cons. We expose these wrappers as
+ ;; the public interface for emitting `cons' instructions. That way we
+ ;; solve the problem fully and in just one place. The only manual
+ ;; care that need be taken is in the exports list at the top of the
+ ;; file -- to be sure that we export the wrapper and not the wrapped
+ ;; emitter.
+
+ (define (shuffling-assembler name kind word0 word*)
+ (define (analyze-first-word)
+ (define-syntax op-case
+ (syntax-rules ()
+ ((_ type ((%type %kind arg ...) values) clause ...)
+ (if (and (eq? type '%type) (eq? kind '%kind))
+ (with-syntax (((arg ...) (generate-temporaries #'(arg ...))))
+ #'((arg ...) values))
+ (op-case type clause ...)))
+ ((_ type)
+ #f)))
+ (op-case
+ word0
+ ((U8_U8_I16 ! a imm)
+ (values (if (< a (ash 1 8)) a (begin (emit-mov* asm 253 a) 253))
+ imm))
+ ((U8_U8_I16 <- a imm)
+ (values (if (< a (ash 1 8)) a 253)
+ imm))
+ ((U8_U12_U12 ! a b)
+ (values (if (< a (ash 1 12)) a (begin (emit-mov* asm 253 a) 253))
+ (if (< b (ash 1 12)) b (begin (emit-mov* asm 254 b) 254))))
+ ((U8_U12_U12 <- a b)
+ (values (if (< a (ash 1 12)) a 253)
+ (if (< b (ash 1 12)) b (begin (emit-mov* asm 254 b) 254))))
+ ((U8_U8_U8_U8 ! a b c)
+ (values (if (< a (ash 1 8)) a (begin (emit-mov* asm 253 a) 253))
+ (if (< b (ash 1 8)) b (begin (emit-mov* asm 254 b) 254))
+ (if (< c (ash 1 8)) c (begin (emit-mov* asm 255 c) 255))))
+ ((U8_U8_U8_U8 <- a b c)
+ (values (if (< a (ash 1 8)) a 253)
+ (if (< b (ash 1 8)) b (begin (emit-mov* asm 254 b) 254))
+ (if (< c (ash 1 8)) c (begin (emit-mov* asm 255 c) 255))))))
+
+ (define (tail-formals type)
+ (define-syntax op-case
+ (syntax-rules ()
+ ((op-case type (%type arg ...) clause ...)
+ (if (eq? type '%type)
+ (generate-temporaries #'(arg ...))
+ (op-case type clause ...)))
+ ((op-case type)
+ (error "unmatched type" type))))
+ (op-case type
+ (U8_U24 a b)
+ (U8_L24 a label)
+ (U32 a)
+ (I32 imm)
+ (A32 imm)
+ (B32)
+ (N32 label)
+ (S32 label)
+ (L32 label)
+ (LO32 label offset)
+ (X8_U24 a)
+ (X8_L24 label)
+ (B1_X7_L24 a label)
+ (B1_U7_L24 a b label)
+ (B1_X31 a)
+ (B1_X7_U24 a b)))
+
+ (define (shuffle-up dst)
+ (define-syntax op-case
+ (syntax-rules ()
+ ((_ type ((%type ...) exp) clause ...)
+ (if (memq type '(%type ...))
+ #'exp
+ (op-case type clause ...)))
+ ((_ type)
+ (error "unexpected type" type))))
+ (with-syntax ((dst dst))
+ (op-case
+ word0
+ ((U8_U8_I16 U8_U8_U8_U8)
+ (unless (< dst (ash 1 8))
+ (emit-mov* asm dst 253)))
+ ((U8_U12_U12)
+ (unless (< dst (ash 1 12))
+ (emit-mov* asm dst 253))))))
+
+ (and=>
+ (analyze-first-word)
+ (lambda (formals+shuffle)
+ (with-syntax ((emit-name (id-append name #'emit- name))
+ (((formal0 ...) shuffle) formals+shuffle)
+ (((formal* ...) ...) (map tail-formals word*)))
+ (with-syntax (((shuffle-up-dst ...)
+ (if (eq? kind '<-)
+ (syntax-case #'(formal0 ...) ()
+ ((dst . _)
+ (list (shuffle-up #'dst))))
+ '())))
+ #'(lambda (asm formal0 ... formal* ... ...)
+ (call-with-values (lambda () shuffle)
+ (lambda (formal0 ...)
+ (emit-name asm formal0 ... formal* ... ...)))
+ shuffle-up-dst ...))))))
+
+ (define-syntax define-shuffling-assembler
+ (lambda (stx)
+ (syntax-case stx ()
+ ((_ #:except (except ...) name opcode kind word0 word* ...)
+ (cond
+ ((or-map (lambda (op) (eq? (syntax->datum #'name) op))
+ (map syntax->datum #'(except ...)))
+ #'(begin))
+ ((shuffling-assembler #'name (syntax->datum #'kind)
+ (syntax->datum #'word0)
+ (map syntax->datum #'(word* ...)))
+ => (lambda (proc)
+ (with-syntax ((emit (id-append #'name
+ (id-append #'name #'emit- #'name)
+ #'*))
+ (proc proc))
+ #'(define emit
+ (let ((emit proc))
+ (hashq-set! assemblers 'name emit)
+ emit)))))
+ (else #'(begin))))))))
+
+(visit-opcodes define-shuffling-assembler #:except (receive mov))
+
+;; Mov and receive are two special cases that can work without wrappers.
+;; Indeed it is important that they do so.
+
+(define (emit-mov* asm dst src)
+ (if (and (< dst (ash 1 12)) (< src (ash 1 12)))
+ (emit-mov asm dst src)
+ (emit-long-mov asm dst src)))
+
+(define (emit-receive* asm dst proc nlocals)
+ (if (and (< dst (ash 1 12)) (< proc (ash 1 12)))
+ (emit-receive asm dst proc nlocals)
+ (begin
+ (emit-receive-values asm proc #t 1)
+ (emit-mov* asm dst (1+ proc))
+ (emit-reset-frame asm nlocals))))
+
(define (emit-text asm instructions)
"Assemble @var{instructions} using the assembler @var{asm}.
@var{instructions} is a sequence of instructions, expressed as a list of
((static-procedure? obj)
`((static-patch! ,label 1 ,(static-procedure-code obj))))
((cache-cell? obj) '())
- ((symbol? obj)
+ ((and (symbol? obj) (symbol-interned? obj))
`((make-non-immediate 1 ,(recur (symbol->string obj)))
(string->symbol 1 1)
(static-set! 1 ,label 0)))
,(recur (make-uniform-vector-backing-store
(uniform-array->bytevector obj)
width))))))
+ ((array? obj)
+ `((static-patch! ,label 1 ,(recur (shared-array-root obj)))))
(else
- (error "don't know how to intern" obj))))
+ (if (asm-to-file? asm)
+ (error "don't know how to intern" obj)
+ `((make-short-immediate 1 ,(vlist-length (asm-constants asm)))
+ (vector-ref 1 0 1)
+ (static-set! 1 ,label 0))))))
(cond
((immediate? obj) #f)
((vhash-assoc obj (asm-constants asm)) => cdr)
(else
- ;; Note that calling intern may mutate asm-constants and
- ;; asm-constant-inits.
+ ;; Note that calling intern may mutate asm-constants and asm-inits.
(let* ((label (gensym "constant"))
(inits (intern obj label)))
(set-asm-constants! asm (vhash-cons obj label (asm-constants asm)))
;;; some higher-level operations.
;;;
-(define-syntax define-macro-assembler
- (lambda (x)
- (syntax-case x ()
- ((_ (name arg ...) body body* ...)
- (with-syntax ((emit (id-append #'name #'emit- #'name)))
- #'(begin
- (define emit
- (let ((emit (lambda (arg ...) body body* ...)))
- (hashq-set! assemblers 'name emit)
- emit))
- (export emit)))))))
+(eval-when (expand)
+ (define-syntax define-macro-assembler
+ (lambda (x)
+ (syntax-case x ()
+ ((_ (name arg ...) body body* ...)
+ (with-syntax ((emit (id-append #'name #'emit- #'name)))
+ #'(begin
+ (define emit
+ (let ((emit (lambda (arg ...) body body* ...)))
+ (hashq-set! assemblers 'name emit)
+ emit))
+ (export emit))))))))
(define-macro-assembler (load-constant asm dst obj)
(cond
;(define-tc7-macro-assembler br-if-fluid 37)
;(define-tc7-macro-assembler br-if-dynamic-state 45)
;(define-tc7-macro-assembler br-if-frame 47)
+(define-tc7-macro-assembler br-if-keyword 53)
;(define-tc7-macro-assembler br-if-vm 55)
;(define-tc7-macro-assembler br-if-vm-cont 71)
;(define-tc7-macro-assembler br-if-rtl-program 69)
(set-arity-definitions! arity (reverse (arity-definitions arity)))
(set-arity-high-pc! arity (asm-start asm))))
+;; As noted above, we reserve locals 253 through 255 for shuffling large
+;; operands. However the calling convention has all arguments passed in
+;; a contiguous block. This helper, called after the clause has been
+;; chosen and the keyword/optional/rest arguments have been processed,
+;; shuffles up arguments from slot 253 and higher into their final
+;; allocations.
+;;
+(define (shuffle-up-args asm nargs)
+ (when (> nargs 253)
+ (let ((slot (1- nargs)))
+ (emit-mov asm (+ slot 3) slot)
+ (shuffle-up-args asm (1- nargs)))))
+
(define-macro-assembler (standard-prelude asm nreq nlocals alternate)
(cond
(alternate
(emit-assert-nargs-ee/locals asm nreq (- nlocals nreq)))
(else
(emit-assert-nargs-ee asm nreq)
- (emit-alloc-frame asm nlocals))))
+ (emit-alloc-frame asm nlocals)))
+ (shuffle-up-args asm nreq))
(define-macro-assembler (opt-prelude asm nreq nopt rest? nlocals alternate)
(if alternate
(emit-br-if-nargs-gt asm (+ nreq nopt) alternate))
(else
(emit-assert-nargs-le asm (+ nreq nopt))))
- (emit-alloc-frame asm nlocals))
+ (emit-alloc-frame asm nlocals)
+ (shuffle-up-args asm (+ nreq nopt (if rest? 1 0))))
(define-macro-assembler (kw-prelude asm nreq nopt rest? kw-indices
allow-other-keys? nlocals alternate)
(+ nreq nopt)
ntotal
(intern-constant asm kw-indices))
- (emit-alloc-frame asm nlocals)))
+ (emit-alloc-frame asm nlocals)
+ (shuffle-up-args asm ntotal)))
(define-macro-assembler (label asm sym)
(hashq-set! (asm-labels asm) sym (asm-start asm)))
(let ((label (gensym "init-constants")))
(emit-text asm
`((begin-program ,label ())
- (assert-nargs-ee/locals 1 1)
+ ,@(if (asm-to-file? asm)
+ '((assert-nargs-ee/locals 1 1))
+ '((assert-nargs-ee/locals 2 0)
+ (mov 0 1)))
,@(reverse inits)
(load-constant 1 ,*unspecified*)
(return 1)
(define tc7-program 69)
(define tc7-bytevector 77)
(define tc7-bitvector 95)
+ (define tc7-array 93)
(let ((word-size (asm-word-size asm))
(endianness (asm-endianness asm)))
(* 4 word-size))
((uniform-vector-backing-store? x)
(bytevector-length (uniform-vector-backing-store-bytes x)))
+ ((array? x)
+ (* word-size (+ 3 (* 3 (array-rank x)))))
(else
word-size)))
(write-immediate asm buf pos #f))
((string? obj)
- (let ((tag (logior tc7-ro-string (ash (string-length obj) 8))))
+ (let ((tag (logior tc7-ro-string (ash (string-length obj) 8)))) ; FIXME: unused?
(case word-size
((4)
(bytevector-u32-set! buf pos tc7-ro-string endianness)
(write-constant-reference buf pos elt)
(lp (1+ i)))))))
- ((symbol? obj)
+ ((and (symbol? obj) (symbol-interned? obj))
(write-immediate asm buf pos #f))
((keyword? obj)
;; Need to swap units of element-size bytes
(error "FIXME: Implement byte order swap"))))
+ ((array? obj)
+ (let-values
+ ;; array tag + rank + contp flag: see libguile/arrays.h .
+ (((tag) (logior tc7-array (ash (array-rank obj) 17) (ash 1 16)))
+ ((bv-set! bvs-set!)
+ (case word-size
+ ((4) (values bytevector-u32-set! bytevector-s32-set!))
+ ((8) (values bytevector-u64-set! bytevector-s64-set!))
+ (else (error "bad word size")))))
+ (bv-set! buf pos tag endianness)
+ (write-immediate asm buf (+ pos word-size) #f) ; root vector (fixed later)
+ (bv-set! buf (+ pos (* word-size 2)) 0 endianness) ; base
+ (let lp ((pos (+ pos (* word-size 3)))
+ (bounds (array-shape obj))
+ (incs (shared-array-increments obj)))
+ (when (pair? bounds)
+ (bvs-set! buf pos (first (first bounds)) endianness)
+ (bvs-set! buf (+ pos word-size) (second (first bounds)) endianness)
+ (bvs-set! buf (+ pos (* word-size 2)) (first incs) endianness)
+ (lp (+ pos (* 3 word-size)) (cdr bounds) (cdr incs))))))
+
(else
- (error "unrecognized object" obj))))
+ (if (asm-to-file? asm)
+ (error "unrecognized object" obj)
+ (write-constant-reference buf pos obj)))))
(cond
((vlist-null? data) #f)
;; FIXME: Define these somewhere central, shared with C.
(define *bytecode-major-version* #x0202)
-(define *bytecode-minor-version* 5)
+(define *bytecode-minor-version* 6)
(define (link-dynamic-section asm text rw rw-init frame-maps)
"Link the dynamic section for an ELF image with bytecode @var{text},
(define (port-position port)
(seek port 0 SEEK_CUR))
-(define-syntax-rule (pack-arity-flags has-rest? allow-other-keys?
- has-keyword-args? is-case-lambda?
- is-in-case-lambda?)
+(define-inline (pack-arity-flags has-rest? allow-other-keys?
+ has-keyword-args? is-case-lambda?
+ is-in-case-lambda?)
(logior (if has-rest? (ash 1 0) 0)
(if allow-other-keys? (ash 1 1) 0)
(if has-keyword-args? (ash 1 2) 0)
(lp sources
;; Guile line and column numbers are 0-indexed, but
;; they are 1-indexed for DWARF.
- (cons (list pc
- (if file (intern-file file) 0)
- (if line (1+ line))
- (if col (1+ col)))
- out))))
+ (if (and line col)
+ (cons (list pc
+ (if (string? file) (intern-file file) 0)
+ (1+ line)
+ (1+ col))
+ out)
+ out))))
(()
;; Compilation unit header for .debug_line. We write in
;; DWARF 2 format because more tools understand it than DWARF
The result is a bytevector, by default linked so that read-only and
writable data are on separate pages. Pass @code{#:page-aligned? #f} to
disable this behavior."
- (link-elf (link-objects asm) #:page-aligned? page-aligned?))
+ (define (asm-constant-vector asm)
+ (list->vector (reverse (map car (vlist->list (asm-constants asm))))))
+ (let ((bv (link-elf (link-objects asm) #:page-aligned? page-aligned?)))
+ (cons bv (if (asm-to-file? asm) #f (asm-constant-vector asm)))))
HCoop / bpt / guile.git / blobdiff