1 ! Copyright (C) 2008 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: namespaces make math math.order math.parser sequences accessors
4 kernel kernel.private layouts assocs words summary arrays
5 combinators classes.algebra alien alien.c-types alien.structs
6 alien.strings alien.arrays sets threads libc continuations.private
11 compiler.cfg.instructions
12 compiler.cfg.registers
14 compiler.codegen.fixup ;
17 GENERIC: generate-insn ( insn -- )
21 : register ( vreg -- operand )
22 registers get at [ "Bad value" throw ] unless* ;
24 : ?register ( obj -- operand )
25 dup vreg? [ register ] when ;
27 : generate-insns ( insns -- code )
30 dup regs>> registers set
35 TUPLE: asm label code calls ;
39 : add-call ( word -- )
40 #! Compile this word later.
43 SYMBOL: compiling-word
45 : compiled-stack-traces? ( -- ? ) 59 getenv ;
47 ! Mapping _label IDs to label instances
50 : init-generator ( word -- )
52 V{ } clone literal-table set
55 compiled-stack-traces? compiling-word get f ? add-literal drop ;
57 : generate ( mr -- asm )
60 [ word>> init-generator ]
61 [ instructions>> generate-insns ] tri
66 : lookup-label ( id -- label )
67 labels get [ drop <label> ] cache ;
69 M: ##load-immediate generate-insn
70 [ dst>> register ] [ val>> ] bi %load-immediate ;
72 M: ##load-indirect generate-insn
73 [ dst>> register ] [ obj>> ] bi %load-indirect ;
75 M: ##peek generate-insn
76 [ dst>> register ] [ loc>> ] bi %peek ;
78 M: ##replace generate-insn
79 [ src>> register ] [ loc>> ] bi %replace ;
81 M: ##inc-d generate-insn n>> %inc-d ;
83 M: ##inc-r generate-insn n>> %inc-r ;
85 M: ##call generate-insn
86 word>> dup sub-primitive>>
87 [ first % ] [ [ add-call ] [ %call ] bi ] ?if ;
89 M: ##jump generate-insn word>> [ add-call ] [ %jump-label ] bi ;
91 M: ##return generate-insn drop %return ;
93 M: ##dispatch-label generate-insn label>> %dispatch-label ;
95 M: ##dispatch generate-insn
96 [ src>> register ] [ temp>> register ] [ offset>> ] tri %dispatch ;
106 M: ##slot generate-insn
107 [ >slot< ] [ temp>> register ] bi %slot ;
109 M: ##slot-imm generate-insn
120 M: ##set-slot generate-insn
121 [ >set-slot< ] [ temp>> register ] bi %set-slot ;
123 M: ##set-slot-imm generate-insn
124 >set-slot< %set-slot-imm ;
126 M: ##string-nth generate-insn
132 } cleave %string-nth ;
134 M: ##set-string-nth-fast generate-insn
140 } cleave %set-string-nth-fast ;
142 : dst/src ( insn -- dst src )
143 [ dst>> register ] [ src>> register ] bi ; inline
145 : dst/src1/src2 ( insn -- dst src1 src2 )
148 [ src2>> ?register ] tri ; inline
150 M: ##add generate-insn dst/src1/src2 %add ;
151 M: ##add-imm generate-insn dst/src1/src2 %add-imm ;
152 M: ##sub generate-insn dst/src1/src2 %sub ;
153 M: ##sub-imm generate-insn dst/src1/src2 %sub-imm ;
154 M: ##mul generate-insn dst/src1/src2 %mul ;
155 M: ##mul-imm generate-insn dst/src1/src2 %mul-imm ;
156 M: ##and generate-insn dst/src1/src2 %and ;
157 M: ##and-imm generate-insn dst/src1/src2 %and-imm ;
158 M: ##or generate-insn dst/src1/src2 %or ;
159 M: ##or-imm generate-insn dst/src1/src2 %or-imm ;
160 M: ##xor generate-insn dst/src1/src2 %xor ;
161 M: ##xor-imm generate-insn dst/src1/src2 %xor-imm ;
162 M: ##shl-imm generate-insn dst/src1/src2 %shl-imm ;
163 M: ##shr-imm generate-insn dst/src1/src2 %shr-imm ;
164 M: ##sar-imm generate-insn dst/src1/src2 %sar-imm ;
165 M: ##not generate-insn dst/src %not ;
166 M: ##log2 generate-insn dst/src %log2 ;
168 : src1/src2 ( insn -- src1 src2 )
169 [ src1>> register ] [ src2>> register ] bi ; inline
171 : src1/src2/temp1/temp2 ( insn -- src1 src2 temp1 temp2 )
172 [ src1/src2 ] [ temp1>> register ] [ temp2>> register ] tri ; inline
174 M: ##fixnum-add generate-insn src1/src2 %fixnum-add ;
175 M: ##fixnum-add-tail generate-insn src1/src2 %fixnum-add-tail ;
176 M: ##fixnum-sub generate-insn src1/src2 %fixnum-sub ;
177 M: ##fixnum-sub-tail generate-insn src1/src2 %fixnum-sub-tail ;
178 M: ##fixnum-mul generate-insn src1/src2/temp1/temp2 %fixnum-mul ;
179 M: ##fixnum-mul-tail generate-insn src1/src2/temp1/temp2 %fixnum-mul-tail ;
181 : dst/src/temp ( insn -- dst src temp )
182 [ dst/src ] [ temp>> register ] bi ; inline
184 M: ##integer>bignum generate-insn dst/src/temp %integer>bignum ;
185 M: ##bignum>integer generate-insn dst/src/temp %bignum>integer ;
187 M: ##add-float generate-insn dst/src1/src2 %add-float ;
188 M: ##sub-float generate-insn dst/src1/src2 %sub-float ;
189 M: ##mul-float generate-insn dst/src1/src2 %mul-float ;
190 M: ##div-float generate-insn dst/src1/src2 %div-float ;
192 M: ##integer>float generate-insn dst/src %integer>float ;
193 M: ##float>integer generate-insn dst/src %float>integer ;
195 M: ##copy generate-insn dst/src %copy ;
196 M: ##copy-float generate-insn dst/src %copy-float ;
197 M: ##unbox-float generate-insn dst/src %unbox-float ;
198 M: ##unbox-any-c-ptr generate-insn dst/src/temp %unbox-any-c-ptr ;
199 M: ##box-float generate-insn dst/src/temp %box-float ;
200 M: ##box-alien generate-insn dst/src/temp %box-alien ;
202 M: ##alien-unsigned-1 generate-insn dst/src %alien-unsigned-1 ;
203 M: ##alien-unsigned-2 generate-insn dst/src %alien-unsigned-2 ;
204 M: ##alien-unsigned-4 generate-insn dst/src %alien-unsigned-4 ;
205 M: ##alien-signed-1 generate-insn dst/src %alien-signed-1 ;
206 M: ##alien-signed-2 generate-insn dst/src %alien-signed-2 ;
207 M: ##alien-signed-4 generate-insn dst/src %alien-signed-4 ;
208 M: ##alien-cell generate-insn dst/src %alien-cell ;
209 M: ##alien-float generate-insn dst/src %alien-float ;
210 M: ##alien-double generate-insn dst/src %alien-double ;
212 : >alien-setter< [ src>> register ] [ value>> register ] bi ; inline
214 M: ##set-alien-integer-1 generate-insn >alien-setter< %set-alien-integer-1 ;
215 M: ##set-alien-integer-2 generate-insn >alien-setter< %set-alien-integer-2 ;
216 M: ##set-alien-integer-4 generate-insn >alien-setter< %set-alien-integer-4 ;
217 M: ##set-alien-cell generate-insn >alien-setter< %set-alien-cell ;
218 M: ##set-alien-float generate-insn >alien-setter< %set-alien-float ;
219 M: ##set-alien-double generate-insn >alien-setter< %set-alien-double ;
221 M: ##allot generate-insn
230 M: ##write-barrier generate-insn
236 M: _gc generate-insn drop %gc ;
238 M: ##loop-entry generate-insn drop %loop-entry ;
240 M: ##alien-global generate-insn
241 [ dst>> register ] [ symbol>> ] [ library>> ] tri
245 GENERIC: reg-size ( register-class -- n )
247 M: int-regs reg-size drop cell ;
249 M: single-float-regs reg-size drop 4 ;
251 M: double-float-regs reg-size drop 8 ;
253 M: stack-params reg-size drop "void*" heap-size ;
255 GENERIC: reg-class-variable ( register-class -- symbol )
257 M: reg-class reg-class-variable ;
259 M: float-regs reg-class-variable drop float-regs ;
261 GENERIC: inc-reg-class ( register-class -- )
263 : ?dummy-stack-params ( reg-class -- )
264 dummy-stack-params? [ reg-size cell align stack-params +@ ] [ drop ] if ;
266 : ?dummy-int-params ( reg-class -- )
267 dummy-int-params? [ reg-size cell /i 1 max int-regs +@ ] [ drop ] if ;
269 : ?dummy-fp-params ( reg-class -- )
270 drop dummy-fp-params? [ float-regs inc ] when ;
272 M: int-regs inc-reg-class
273 [ reg-class-variable inc ]
274 [ ?dummy-stack-params ]
278 M: float-regs inc-reg-class
279 [ reg-class-variable inc ]
280 [ ?dummy-stack-params ]
281 [ ?dummy-int-params ]
284 GENERIC: reg-class-full? ( class -- ? )
286 M: stack-params reg-class-full? drop t ;
288 M: object reg-class-full?
289 [ reg-class-variable get ] [ param-regs length ] bi >= ;
291 : spill-param ( reg-class -- n reg-class )
293 [ reg-size cell align stack-params +@ ] dip
296 : fastcall-param ( reg-class -- n reg-class )
297 [ reg-class-variable get ] [ inc-reg-class ] [ ] tri ;
299 : alloc-parameter ( parameter -- reg reg-class )
300 c-type-reg-class dup reg-class-full?
301 [ spill-param ] [ fastcall-param ] if
304 : (flatten-int-type) ( size -- seq )
305 cell /i "void*" c-type <repetition> ;
307 GENERIC: flatten-value-type ( type -- types )
309 M: object flatten-value-type 1array ;
311 M: struct-type flatten-value-type ( type -- types )
312 stack-size cell align (flatten-int-type) ;
314 M: long-long-type flatten-value-type ( type -- types )
315 stack-size cell align (flatten-int-type) ;
317 : flatten-value-types ( params -- params )
318 #! Convert value type structs to consecutive void*s.
322 [ parameter-align (flatten-int-type) % ] keep
323 [ stack-size cell align + ] keep
328 : each-parameter ( parameters quot -- )
329 [ [ parameter-sizes nip ] keep ] dip 2each ; inline
331 : reverse-each-parameter ( parameters quot -- )
332 [ [ parameter-sizes nip ] keep ] dip 2reverse-each ; inline
334 : reset-freg-counts ( -- )
335 { int-regs float-regs stack-params } [ 0 swap set ] each ;
337 : with-param-regs ( quot -- )
338 #! In quot you can call alloc-parameter
339 [ reset-freg-counts call ] with-scope ; inline
341 : move-parameters ( node word -- )
342 #! Moves values from C stack to registers (if word is
343 #! %load-param-reg) and registers to C stack (if word is
345 [ alien-parameters flatten-value-types ]
346 [ '[ alloc-parameter _ execute ] ]
347 bi* each-parameter ; inline
349 : unbox-parameters ( offset node -- )
351 %prepare-unbox [ over + ] dip unbox-parameter
352 ] reverse-each-parameter drop ;
354 : prepare-box-struct ( node -- offset )
355 #! Return offset on C stack where to store unboxed
356 #! parameters. If the C function is returning a structure,
357 #! the first parameter is an implicit target area pointer,
358 #! so we need to use a different offset.
359 return>> large-struct?
360 [ %prepare-box-struct cell ] [ 0 ] if ;
362 : objects>registers ( params -- )
363 #! Generate code for unboxing a list of C types, then
364 #! generate code for moving these parameters to register on
365 #! architectures where parameters are passed in registers.
367 [ prepare-box-struct ] keep
368 [ unbox-parameters ] keep
369 \ %load-param-reg move-parameters
372 : box-return* ( node -- )
373 return>> [ ] [ box-return ] if-void ;
375 TUPLE: no-such-library name ;
377 M: no-such-library summary
378 drop "Library not found" ;
380 M: no-such-library compiler-error-type
383 : no-such-library ( name -- )
384 \ no-such-library boa
385 compiling-word get compiler-error ;
387 TUPLE: no-such-symbol name ;
389 M: no-such-symbol summary
390 drop "Symbol not found" ;
392 M: no-such-symbol compiler-error-type
395 : no-such-symbol ( name -- )
397 compiling-word get compiler-error ;
399 : check-dlsym ( symbols dll -- )
401 dupd '[ _ dlsym ] contains?
402 [ drop ] [ no-such-symbol ] if
404 dll-path no-such-library drop
407 : stdcall-mangle ( symbol node -- symbol )
409 swap parameters>> parameter-sizes drop
410 number>string 3append ;
412 : alien-invoke-dlsym ( params -- symbols dll )
413 dup function>> dup pick stdcall-mangle 2array
414 swap library>> library dup [ dll>> ] when
417 M: ##alien-invoke generate-insn
419 ! Save registers for GC
420 %prepare-alien-invoke
422 dup objects>registers
425 dup alien-invoke-dlsym %alien-invoke
431 M: ##alien-indirect generate-insn
433 ! Save registers for GC
434 %prepare-alien-invoke
435 ! Save alien at top of stack to temporary storage
436 %prepare-alien-indirect
438 dup objects>registers
440 ! Call alien in temporary storage
447 : box-parameters ( params -- )
448 alien-parameters [ box-parameter ] each-parameter ;
450 : registers>objects ( node -- )
452 dup \ %save-param-reg move-parameters
453 "nest_stacks" f %alien-invoke
457 TUPLE: callback-context ;
459 : current-callback ( -- id ) 2 getenv ;
461 : wait-to-return ( token -- )
462 dup current-callback eq? [
468 : do-callback ( quot token -- )
472 wait-to-return ; inline
474 : callback-return-quot ( ctype -- quot )
476 { [ dup "void" = ] [ drop [ ] ] }
477 { [ dup large-struct? ] [ heap-size '[ _ memcpy ] ] }
478 [ c-type c-type-unboxer-quot ]
481 : callback-prep-quot ( params -- quot )
482 parameters>> [ c-type c-type-boxer-quot ] map spread>quot ;
484 : wrap-callback-quot ( params -- quot )
486 [ callback-prep-quot ]
488 [ callback-return-quot ] tri 3append ,
489 [ callback-context new do-callback ] %
492 : %unnest-stacks ( -- ) "unnest_stacks" f %alien-invoke ;
494 M: ##callback-return generate-insn
495 #! All the extra book-keeping for %unwind is only for x86.
496 #! On other platforms its an alias for %return.
497 params>> %callback-return ;
499 M: ##alien-callback generate-insn
501 [ registers>objects ]
502 [ wrap-callback-quot %alien-callback ]
503 [ alien-return [ %unnest-stacks ] [ %callback-value ] if-void ]
506 M: _prologue generate-insn
507 stack-frame>> [ stack-frame set ] [ total-size>> %prologue ] bi ;
509 M: _epilogue generate-insn
510 stack-frame>> total-size>> %epilogue ;
512 M: _label generate-insn
513 id>> lookup-label , ;
515 M: _branch generate-insn
516 label>> lookup-label %jump-label ;
518 : >compare< ( insn -- dst temp cc src1 src2 )
527 M: ##compare generate-insn >compare< %compare ;
528 M: ##compare-imm generate-insn >compare< %compare-imm ;
529 M: ##compare-float generate-insn >compare< %compare-float ;
531 : >binary-branch< ( insn -- label cc src1 src2 )
533 [ label>> lookup-label ]
539 M: _compare-branch generate-insn
540 >binary-branch< %compare-branch ;
542 M: _compare-imm-branch generate-insn
543 >binary-branch< %compare-imm-branch ;
545 M: _compare-float-branch generate-insn
546 >binary-branch< %compare-float-branch ;
548 M: _spill generate-insn
549 [ src>> ] [ n>> ] [ class>> ] tri {
550 { int-regs [ %spill-integer ] }
551 { double-float-regs [ %spill-float ] }
554 M: _reload generate-insn
555 [ dst>> ] [ n>> ] [ class>> ] tri {
556 { int-regs [ %reload-integer ] }
557 { double-float-regs [ %reload-float ] }
560 M: _spill-counts generate-insn drop ;