1 ! Copyright (C) 2008, 2009 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 alien.complex alien.libraries sets libc
7 continuations.private fry cpu.architecture classes
13 compiler.cfg.instructions
14 compiler.cfg.stack-frame
15 compiler.cfg.registers
17 compiler.codegen.fixup
23 H{ } clone insn-counts set-global
25 GENERIC: generate-insn ( insn -- )
29 : register ( vreg -- operand )
30 registers get at [ "Bad value" throw ] unless* ;
32 : ?register ( obj -- operand )
33 dup vreg? [ register ] when ;
35 TUPLE: asm label code calls ;
39 : add-call ( word -- )
40 #! Compile this word later.
43 SYMBOL: compiling-word
45 : compiled-stack-traces? ( -- ? ) 67 getenv ;
47 ! Mapping _label IDs to label instances
50 : init-generator ( word -- )
54 compiled-stack-traces? [ compiling-word get add-literal ] when ;
56 : generate-insns ( asm -- code )
58 [ word>> init-generator ]
62 [ class insn-counts get inc-at ]
63 [ regs>> registers set ]
70 : generate ( mr -- asm )
72 [ label>> ] [ generate-insns ] bi calls get
76 : lookup-label ( id -- label )
77 labels get [ drop <label> ] cache ;
79 M: ##no-tco generate-insn drop ;
81 M: ##load-immediate generate-insn
82 [ dst>> register ] [ val>> ] bi %load-immediate ;
84 M: ##load-reference generate-insn
85 [ dst>> register ] [ obj>> ] bi %load-reference ;
87 M: ##peek generate-insn
88 [ dst>> register ] [ loc>> ] bi %peek ;
90 M: ##replace generate-insn
91 [ src>> register ] [ loc>> ] bi %replace ;
93 M: ##inc-d generate-insn n>> %inc-d ;
95 M: ##inc-r generate-insn n>> %inc-r ;
97 M: ##call generate-insn
98 word>> dup sub-primitive>>
99 [ first % ] [ [ add-call ] [ %call ] bi ] ?if ;
101 M: ##jump generate-insn word>> [ add-call ] [ %jump ] bi ;
103 M: ##return generate-insn drop %return ;
105 M: _dispatch generate-insn
106 [ src>> register ] [ temp>> register ] bi %dispatch ;
108 M: _dispatch-label generate-insn
110 cell 0 <repetition> %
111 rc-absolute-cell label-fixup ;
113 : >slot< ( insn -- dst obj slot tag )
121 M: ##slot generate-insn
122 [ >slot< ] [ temp>> register ] bi %slot ;
124 M: ##slot-imm generate-insn
127 : >set-slot< ( insn -- src obj slot tag )
135 M: ##set-slot generate-insn
136 [ >set-slot< ] [ temp>> register ] bi %set-slot ;
138 M: ##set-slot-imm generate-insn
139 >set-slot< %set-slot-imm ;
141 M: ##string-nth generate-insn
147 } cleave %string-nth ;
149 M: ##set-string-nth-fast generate-insn
155 } cleave %set-string-nth-fast ;
157 : dst/src ( insn -- dst src )
158 [ dst>> register ] [ src>> register ] bi ; inline
160 : dst/src1/src2 ( insn -- dst src1 src2 )
163 [ src2>> ?register ] tri ; inline
165 M: ##add generate-insn dst/src1/src2 %add ;
166 M: ##add-imm generate-insn dst/src1/src2 %add-imm ;
167 M: ##sub generate-insn dst/src1/src2 %sub ;
168 M: ##sub-imm generate-insn dst/src1/src2 %sub-imm ;
169 M: ##mul generate-insn dst/src1/src2 %mul ;
170 M: ##mul-imm generate-insn dst/src1/src2 %mul-imm ;
171 M: ##and generate-insn dst/src1/src2 %and ;
172 M: ##and-imm generate-insn dst/src1/src2 %and-imm ;
173 M: ##or generate-insn dst/src1/src2 %or ;
174 M: ##or-imm generate-insn dst/src1/src2 %or-imm ;
175 M: ##xor generate-insn dst/src1/src2 %xor ;
176 M: ##xor-imm generate-insn dst/src1/src2 %xor-imm ;
177 M: ##shl generate-insn dst/src1/src2 %shl ;
178 M: ##shl-imm generate-insn dst/src1/src2 %shl-imm ;
179 M: ##shr generate-insn dst/src1/src2 %shr ;
180 M: ##shr-imm generate-insn dst/src1/src2 %shr-imm ;
181 M: ##sar generate-insn dst/src1/src2 %sar ;
182 M: ##sar-imm generate-insn dst/src1/src2 %sar-imm ;
183 M: ##not generate-insn dst/src %not ;
184 M: ##log2 generate-insn dst/src %log2 ;
186 : label/dst/src1/src2 ( insn -- label dst src1 src2 )
187 [ label>> lookup-label ] [ dst/src1/src2 ] bi ; inline
189 M: _fixnum-add generate-insn label/dst/src1/src2 %fixnum-add ;
190 M: _fixnum-sub generate-insn label/dst/src1/src2 %fixnum-sub ;
191 M: _fixnum-mul generate-insn label/dst/src1/src2 %fixnum-mul ;
193 : dst/src/temp ( insn -- dst src temp )
194 [ dst/src ] [ temp>> register ] bi ; inline
196 M: ##integer>bignum generate-insn dst/src/temp %integer>bignum ;
197 M: ##bignum>integer generate-insn dst/src/temp %bignum>integer ;
199 M: ##add-float generate-insn dst/src1/src2 %add-float ;
200 M: ##sub-float generate-insn dst/src1/src2 %sub-float ;
201 M: ##mul-float generate-insn dst/src1/src2 %mul-float ;
202 M: ##div-float generate-insn dst/src1/src2 %div-float ;
204 M: ##integer>float generate-insn dst/src %integer>float ;
205 M: ##float>integer generate-insn dst/src %float>integer ;
207 M: ##copy generate-insn dst/src %copy ;
208 M: ##copy-float generate-insn dst/src %copy-float ;
209 M: ##unbox-float generate-insn dst/src %unbox-float ;
210 M: ##unbox-any-c-ptr generate-insn dst/src/temp %unbox-any-c-ptr ;
211 M: ##box-float generate-insn dst/src/temp %box-float ;
212 M: ##box-alien generate-insn dst/src/temp %box-alien ;
214 M: ##alien-unsigned-1 generate-insn dst/src %alien-unsigned-1 ;
215 M: ##alien-unsigned-2 generate-insn dst/src %alien-unsigned-2 ;
216 M: ##alien-unsigned-4 generate-insn dst/src %alien-unsigned-4 ;
217 M: ##alien-signed-1 generate-insn dst/src %alien-signed-1 ;
218 M: ##alien-signed-2 generate-insn dst/src %alien-signed-2 ;
219 M: ##alien-signed-4 generate-insn dst/src %alien-signed-4 ;
220 M: ##alien-cell generate-insn dst/src %alien-cell ;
221 M: ##alien-float generate-insn dst/src %alien-float ;
222 M: ##alien-double generate-insn dst/src %alien-double ;
224 : >alien-setter< ( insn -- src value )
225 [ src>> register ] [ value>> register ] bi ; inline
227 M: ##set-alien-integer-1 generate-insn >alien-setter< %set-alien-integer-1 ;
228 M: ##set-alien-integer-2 generate-insn >alien-setter< %set-alien-integer-2 ;
229 M: ##set-alien-integer-4 generate-insn >alien-setter< %set-alien-integer-4 ;
230 M: ##set-alien-cell generate-insn >alien-setter< %set-alien-cell ;
231 M: ##set-alien-float generate-insn >alien-setter< %set-alien-float ;
232 M: ##set-alien-double generate-insn >alien-setter< %set-alien-double ;
234 M: ##allot generate-insn
243 M: ##write-barrier generate-insn
257 M: _loop-entry generate-insn drop %loop-entry ;
259 M: ##alien-global generate-insn
260 [ dst>> register ] [ symbol>> ] [ library>> ] tri
264 GENERIC: reg-class-variable ( register-class -- symbol )
266 M: reg-class reg-class-variable ;
268 M: float-regs reg-class-variable drop float-regs ;
270 GENERIC: inc-reg-class ( register-class -- )
272 : ?dummy-stack-params ( reg-class -- )
273 dummy-stack-params? [ reg-size cell align stack-params +@ ] [ drop ] if ;
275 : ?dummy-int-params ( reg-class -- )
276 dummy-int-params? [ reg-size cell /i 1 max int-regs +@ ] [ drop ] if ;
278 : ?dummy-fp-params ( reg-class -- )
279 drop dummy-fp-params? [ float-regs inc ] when ;
281 M: int-regs inc-reg-class
282 [ reg-class-variable inc ]
283 [ ?dummy-stack-params ]
287 M: float-regs inc-reg-class
288 [ reg-class-variable inc ]
289 [ ?dummy-stack-params ]
290 [ ?dummy-int-params ]
293 GENERIC: reg-class-full? ( class -- ? )
295 M: stack-params reg-class-full? drop t ;
297 M: object reg-class-full?
298 [ reg-class-variable get ] [ param-regs length ] bi >= ;
300 : spill-param ( reg-class -- n reg-class )
302 [ reg-size cell align stack-params +@ ] dip
305 : fastcall-param ( reg-class -- n reg-class )
306 [ reg-class-variable get ] [ inc-reg-class ] [ ] tri ;
308 : alloc-parameter ( parameter -- reg reg-class )
309 c-type-reg-class dup reg-class-full?
310 [ spill-param ] [ fastcall-param ] if
313 : (flatten-int-type) ( size -- seq )
314 cell /i "void*" c-type <repetition> ;
316 GENERIC: flatten-value-type ( type -- types )
318 M: object flatten-value-type 1array ;
320 M: struct-type flatten-value-type ( type -- types )
321 stack-size cell align (flatten-int-type) ;
323 M: long-long-type flatten-value-type ( type -- types )
324 stack-size cell align (flatten-int-type) ;
326 : flatten-value-types ( params -- params )
327 #! Convert value type structs to consecutive void*s.
331 [ parameter-align (flatten-int-type) % ] keep
332 [ stack-size cell align + ] keep
337 : each-parameter ( parameters quot -- )
338 [ [ parameter-sizes nip ] keep ] dip 2each ; inline
340 : reverse-each-parameter ( parameters quot -- )
341 [ [ parameter-sizes nip ] keep ] dip 2reverse-each ; inline
343 : reset-freg-counts ( -- )
344 { int-regs float-regs stack-params } [ 0 swap set ] each ;
346 : with-param-regs ( quot -- )
347 #! In quot you can call alloc-parameter
348 [ reset-freg-counts call ] with-scope ; inline
350 : move-parameters ( node word -- )
351 #! Moves values from C stack to registers (if word is
352 #! %load-param-reg) and registers to C stack (if word is
354 [ alien-parameters flatten-value-types ]
355 [ '[ alloc-parameter _ execute ] ]
356 bi* each-parameter ; inline
358 : unbox-parameters ( offset node -- )
360 %prepare-unbox [ over + ] dip unbox-parameter
361 ] reverse-each-parameter drop ;
363 : prepare-box-struct ( node -- offset )
364 #! Return offset on C stack where to store unboxed
365 #! parameters. If the C function is returning a structure,
366 #! the first parameter is an implicit target area pointer,
367 #! so we need to use a different offset.
368 return>> large-struct?
369 [ %prepare-box-struct cell ] [ 0 ] if ;
371 : objects>registers ( params -- )
372 #! Generate code for unboxing a list of C types, then
373 #! generate code for moving these parameters to register on
374 #! architectures where parameters are passed in registers.
376 [ prepare-box-struct ] keep
377 [ unbox-parameters ] keep
378 \ %load-param-reg move-parameters
381 : box-return* ( node -- )
382 return>> [ ] [ box-return ] if-void ;
384 : check-dlsym ( symbols dll -- )
386 dupd '[ _ dlsym ] any?
387 [ drop ] [ compiling-word get no-such-symbol ] if
389 dll-path compiling-word get no-such-library drop
392 : stdcall-mangle ( symbol params -- symbol )
393 parameters>> parameter-sizes drop number>string "@" glue ;
395 : alien-invoke-dlsym ( params -- symbols dll )
396 [ [ function>> dup ] keep stdcall-mangle 2array ]
397 [ library>> library dup [ dll>> ] when ]
398 bi 2dup check-dlsym ;
400 M: ##alien-invoke generate-insn
402 ! Save registers for GC
403 %prepare-alien-invoke
405 dup objects>registers
408 dup alien-invoke-dlsym %alien-invoke
414 M: ##alien-indirect generate-insn
416 ! Save registers for GC
417 %prepare-alien-invoke
418 ! Save alien at top of stack to temporary storage
419 %prepare-alien-indirect
421 dup objects>registers
423 ! Call alien in temporary storage
430 : box-parameters ( params -- )
431 alien-parameters [ box-parameter ] each-parameter ;
433 : registers>objects ( node -- )
435 dup \ %save-param-reg move-parameters
436 "nest_stacks" f %alien-invoke
440 TUPLE: callback-context ;
442 : current-callback ( -- id ) 2 getenv ;
444 : wait-to-return ( token -- )
445 dup current-callback eq? [
448 yield-hook get call( -- ) wait-to-return
451 : do-callback ( quot token -- )
453 [ 2 setenv call ] keep
454 wait-to-return ; inline
456 : callback-return-quot ( ctype -- quot )
458 { [ dup "void" = ] [ drop [ ] ] }
459 { [ dup large-struct? ] [ heap-size '[ _ memcpy ] ] }
460 [ c-type c-type-unboxer-quot ]
463 : callback-prep-quot ( params -- quot )
464 parameters>> [ c-type c-type-boxer-quot ] map spread>quot ;
466 : wrap-callback-quot ( params -- quot )
468 [ callback-prep-quot ]
470 [ callback-return-quot ] tri 3append ,
471 [ callback-context new do-callback ] %
474 : %unnest-stacks ( -- ) "unnest_stacks" f %alien-invoke ;
476 M: ##callback-return generate-insn
477 #! All the extra book-keeping for %unwind is only for x86.
478 #! On other platforms its an alias for %return.
479 params>> %callback-return ;
481 M: ##alien-callback generate-insn
483 [ registers>objects ]
484 [ wrap-callback-quot %alien-callback ]
485 [ alien-return [ %unnest-stacks ] [ %callback-value ] if-void ]
488 M: _prologue generate-insn
489 stack-frame>> [ stack-frame set ] [ total-size>> %prologue ] bi ;
491 M: _epilogue generate-insn
492 stack-frame>> total-size>> %epilogue ;
494 M: _label generate-insn
495 id>> lookup-label resolve-label ;
497 M: _branch generate-insn
498 label>> lookup-label %jump-label ;
500 : >compare< ( insn -- dst temp cc src1 src2 )
509 M: ##compare generate-insn >compare< %compare ;
510 M: ##compare-imm generate-insn >compare< %compare-imm ;
511 M: ##compare-float generate-insn >compare< %compare-float ;
513 : >binary-branch< ( insn -- label cc src1 src2 )
515 [ label>> lookup-label ]
521 M: _compare-branch generate-insn
522 >binary-branch< %compare-branch ;
524 M: _compare-imm-branch generate-insn
525 >binary-branch< %compare-imm-branch ;
527 M: _compare-float-branch generate-insn
528 >binary-branch< %compare-float-branch ;
530 M: _spill generate-insn
531 [ src>> ] [ n>> ] [ class>> ] tri {
532 { int-regs [ %spill-integer ] }
533 { double-float-regs [ %spill-float ] }
536 M: _reload generate-insn
537 [ dst>> ] [ n>> ] [ class>> ] tri {
538 { int-regs [ %reload-integer ] }
539 { double-float-regs [ %reload-float ] }
542 M: _copy generate-insn
543 [ dst>> ] [ src>> ] [ class>> ] tri {
544 { int-regs [ %copy ] }
545 { double-float-regs [ %copy-float ] }
548 M: _spill-counts generate-insn drop ;