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 sets libc call
7 continuations.private fry cpu.architecture
11 compiler.cfg.instructions
12 compiler.cfg.registers
14 compiler.codegen.fixup
18 GENERIC: generate-insn ( insn -- )
22 : register ( vreg -- operand )
23 registers get at [ "Bad value" throw ] unless* ;
25 : ?register ( obj -- operand )
26 dup vreg? [ register ] when ;
28 : generate-insns ( insns -- code )
31 dup regs>> registers set
36 TUPLE: asm label code calls ;
40 : add-call ( word -- )
41 #! Compile this word later.
44 SYMBOL: compiling-word
46 : compiled-stack-traces? ( -- ? ) 59 getenv ;
48 ! Mapping _label IDs to label instances
51 : init-generator ( word -- )
53 V{ } clone literal-table set
56 compiled-stack-traces? compiling-word get f ? add-literal drop ;
58 : generate ( mr -- asm )
61 [ word>> init-generator ]
62 [ instructions>> generate-insns ] tri
67 : lookup-label ( id -- label )
68 labels get [ drop <label> ] cache ;
70 M: ##load-immediate generate-insn
71 [ dst>> register ] [ val>> ] bi %load-immediate ;
73 M: ##load-reference generate-insn
74 [ dst>> register ] [ obj>> ] bi %load-reference ;
76 M: ##peek generate-insn
77 [ dst>> register ] [ loc>> ] bi %peek ;
79 M: ##replace generate-insn
80 [ src>> register ] [ loc>> ] bi %replace ;
82 M: ##inc-d generate-insn n>> %inc-d ;
84 M: ##inc-r generate-insn n>> %inc-r ;
86 M: ##call generate-insn
87 word>> dup sub-primitive>>
88 [ first % ] [ [ add-call ] [ %call ] bi ] ?if ;
90 M: ##jump generate-insn word>> [ add-call ] [ %jump-label ] bi ;
92 M: ##return generate-insn drop %return ;
94 M: ##dispatch-label generate-insn label>> %dispatch-label ;
96 M: ##dispatch generate-insn
97 [ src>> register ] [ temp>> register ] [ offset>> ] tri %dispatch ;
99 : >slot< ( insn -- dst obj slot tag )
107 M: ##slot generate-insn
108 [ >slot< ] [ temp>> register ] bi %slot ;
110 M: ##slot-imm generate-insn
113 : >set-slot< ( insn -- src obj slot tag )
121 M: ##set-slot generate-insn
122 [ >set-slot< ] [ temp>> register ] bi %set-slot ;
124 M: ##set-slot-imm generate-insn
125 >set-slot< %set-slot-imm ;
127 M: ##string-nth generate-insn
133 } cleave %string-nth ;
135 M: ##set-string-nth-fast generate-insn
141 } cleave %set-string-nth-fast ;
143 : dst/src ( insn -- dst src )
144 [ dst>> register ] [ src>> register ] bi ; inline
146 : dst/src1/src2 ( insn -- dst src1 src2 )
149 [ src2>> ?register ] tri ; inline
151 M: ##add generate-insn dst/src1/src2 %add ;
152 M: ##add-imm generate-insn dst/src1/src2 %add-imm ;
153 M: ##sub generate-insn dst/src1/src2 %sub ;
154 M: ##sub-imm generate-insn dst/src1/src2 %sub-imm ;
155 M: ##mul generate-insn dst/src1/src2 %mul ;
156 M: ##mul-imm generate-insn dst/src1/src2 %mul-imm ;
157 M: ##and generate-insn dst/src1/src2 %and ;
158 M: ##and-imm generate-insn dst/src1/src2 %and-imm ;
159 M: ##or generate-insn dst/src1/src2 %or ;
160 M: ##or-imm generate-insn dst/src1/src2 %or-imm ;
161 M: ##xor generate-insn dst/src1/src2 %xor ;
162 M: ##xor-imm generate-insn dst/src1/src2 %xor-imm ;
163 M: ##shl-imm generate-insn dst/src1/src2 %shl-imm ;
164 M: ##shr-imm generate-insn dst/src1/src2 %shr-imm ;
165 M: ##sar-imm generate-insn dst/src1/src2 %sar-imm ;
166 M: ##not generate-insn dst/src %not ;
167 M: ##log2 generate-insn dst/src %log2 ;
169 : src1/src2 ( insn -- src1 src2 )
170 [ src1>> register ] [ src2>> register ] bi ; inline
172 : src1/src2/temp1/temp2 ( insn -- src1 src2 temp1 temp2 )
173 [ src1/src2 ] [ temp1>> register ] [ temp2>> register ] tri ; inline
175 M: ##fixnum-add generate-insn src1/src2 %fixnum-add ;
176 M: ##fixnum-add-tail generate-insn src1/src2 %fixnum-add-tail ;
177 M: ##fixnum-sub generate-insn src1/src2 %fixnum-sub ;
178 M: ##fixnum-sub-tail generate-insn src1/src2 %fixnum-sub-tail ;
179 M: ##fixnum-mul generate-insn src1/src2/temp1/temp2 %fixnum-mul ;
180 M: ##fixnum-mul-tail generate-insn src1/src2/temp1/temp2 %fixnum-mul-tail ;
182 : dst/src/temp ( insn -- dst src temp )
183 [ dst/src ] [ temp>> register ] bi ; inline
185 M: ##integer>bignum generate-insn dst/src/temp %integer>bignum ;
186 M: ##bignum>integer generate-insn dst/src/temp %bignum>integer ;
188 M: ##add-float generate-insn dst/src1/src2 %add-float ;
189 M: ##sub-float generate-insn dst/src1/src2 %sub-float ;
190 M: ##mul-float generate-insn dst/src1/src2 %mul-float ;
191 M: ##div-float generate-insn dst/src1/src2 %div-float ;
193 M: ##integer>float generate-insn dst/src %integer>float ;
194 M: ##float>integer generate-insn dst/src %float>integer ;
196 M: ##copy generate-insn dst/src %copy ;
197 M: ##copy-float generate-insn dst/src %copy-float ;
198 M: ##unbox-float generate-insn dst/src %unbox-float ;
199 M: ##unbox-any-c-ptr generate-insn dst/src/temp %unbox-any-c-ptr ;
200 M: ##box-float generate-insn dst/src/temp %box-float ;
201 M: ##box-alien generate-insn dst/src/temp %box-alien ;
203 M: ##alien-unsigned-1 generate-insn dst/src %alien-unsigned-1 ;
204 M: ##alien-unsigned-2 generate-insn dst/src %alien-unsigned-2 ;
205 M: ##alien-unsigned-4 generate-insn dst/src %alien-unsigned-4 ;
206 M: ##alien-signed-1 generate-insn dst/src %alien-signed-1 ;
207 M: ##alien-signed-2 generate-insn dst/src %alien-signed-2 ;
208 M: ##alien-signed-4 generate-insn dst/src %alien-signed-4 ;
209 M: ##alien-cell generate-insn dst/src %alien-cell ;
210 M: ##alien-float generate-insn dst/src %alien-float ;
211 M: ##alien-double generate-insn dst/src %alien-double ;
213 : >alien-setter< ( insn -- src value )
214 [ src>> register ] [ value>> register ] bi ; inline
216 M: ##set-alien-integer-1 generate-insn >alien-setter< %set-alien-integer-1 ;
217 M: ##set-alien-integer-2 generate-insn >alien-setter< %set-alien-integer-2 ;
218 M: ##set-alien-integer-4 generate-insn >alien-setter< %set-alien-integer-4 ;
219 M: ##set-alien-cell generate-insn >alien-setter< %set-alien-cell ;
220 M: ##set-alien-float generate-insn >alien-setter< %set-alien-float ;
221 M: ##set-alien-double generate-insn >alien-setter< %set-alien-double ;
223 M: ##allot generate-insn
232 M: ##write-barrier generate-insn
238 M: _gc generate-insn drop %gc ;
240 M: ##loop-entry generate-insn drop %loop-entry ;
242 M: ##alien-global generate-insn
243 [ dst>> register ] [ symbol>> ] [ library>> ] tri
247 GENERIC: reg-size ( register-class -- n )
249 M: int-regs reg-size drop cell ;
251 M: single-float-regs reg-size drop 4 ;
253 M: double-float-regs reg-size drop 8 ;
255 M: stack-params reg-size drop "void*" heap-size ;
257 GENERIC: reg-class-variable ( register-class -- symbol )
259 M: reg-class reg-class-variable ;
261 M: float-regs reg-class-variable drop float-regs ;
263 GENERIC: inc-reg-class ( register-class -- )
265 : ?dummy-stack-params ( reg-class -- )
266 dummy-stack-params? [ reg-size cell align stack-params +@ ] [ drop ] if ;
268 : ?dummy-int-params ( reg-class -- )
269 dummy-int-params? [ reg-size cell /i 1 max int-regs +@ ] [ drop ] if ;
271 : ?dummy-fp-params ( reg-class -- )
272 drop dummy-fp-params? [ float-regs inc ] when ;
274 M: int-regs inc-reg-class
275 [ reg-class-variable inc ]
276 [ ?dummy-stack-params ]
280 M: float-regs inc-reg-class
281 [ reg-class-variable inc ]
282 [ ?dummy-stack-params ]
283 [ ?dummy-int-params ]
286 GENERIC: reg-class-full? ( class -- ? )
288 M: stack-params reg-class-full? drop t ;
290 M: object reg-class-full?
291 [ reg-class-variable get ] [ param-regs length ] bi >= ;
293 : spill-param ( reg-class -- n reg-class )
295 [ reg-size cell align stack-params +@ ] dip
298 : fastcall-param ( reg-class -- n reg-class )
299 [ reg-class-variable get ] [ inc-reg-class ] [ ] tri ;
301 : alloc-parameter ( parameter -- reg reg-class )
302 c-type-reg-class dup reg-class-full?
303 [ spill-param ] [ fastcall-param ] if
306 : (flatten-int-type) ( size -- seq )
307 cell /i "void*" c-type <repetition> ;
309 GENERIC: flatten-value-type ( type -- types )
311 M: object flatten-value-type 1array ;
313 M: struct-type flatten-value-type ( type -- types )
314 stack-size cell align (flatten-int-type) ;
316 M: long-long-type flatten-value-type ( type -- types )
317 stack-size cell align (flatten-int-type) ;
319 : flatten-value-types ( params -- params )
320 #! Convert value type structs to consecutive void*s.
324 [ parameter-align (flatten-int-type) % ] keep
325 [ stack-size cell align + ] keep
330 : each-parameter ( parameters quot -- )
331 [ [ parameter-sizes nip ] keep ] dip 2each ; inline
333 : reverse-each-parameter ( parameters quot -- )
334 [ [ parameter-sizes nip ] keep ] dip 2reverse-each ; inline
336 : reset-freg-counts ( -- )
337 { int-regs float-regs stack-params } [ 0 swap set ] each ;
339 : with-param-regs ( quot -- )
340 #! In quot you can call alloc-parameter
341 [ reset-freg-counts call ] with-scope ; inline
343 : move-parameters ( node word -- )
344 #! Moves values from C stack to registers (if word is
345 #! %load-param-reg) and registers to C stack (if word is
347 [ alien-parameters flatten-value-types ]
348 [ '[ alloc-parameter _ execute ] ]
349 bi* each-parameter ; inline
351 : unbox-parameters ( offset node -- )
353 %prepare-unbox [ over + ] dip unbox-parameter
354 ] reverse-each-parameter drop ;
356 : prepare-box-struct ( node -- offset )
357 #! Return offset on C stack where to store unboxed
358 #! parameters. If the C function is returning a structure,
359 #! the first parameter is an implicit target area pointer,
360 #! so we need to use a different offset.
361 return>> large-struct?
362 [ %prepare-box-struct cell ] [ 0 ] if ;
364 : objects>registers ( params -- )
365 #! Generate code for unboxing a list of C types, then
366 #! generate code for moving these parameters to register on
367 #! architectures where parameters are passed in registers.
369 [ prepare-box-struct ] keep
370 [ unbox-parameters ] keep
371 \ %load-param-reg move-parameters
374 : box-return* ( node -- )
375 return>> [ ] [ box-return ] if-void ;
377 TUPLE: no-such-library name ;
379 M: no-such-library summary
380 drop "Library not found" ;
382 M: no-such-library compiler-error-type
385 : no-such-library ( name -- )
386 \ no-such-library boa
387 compiling-word get compiler-error ;
389 TUPLE: no-such-symbol name ;
391 M: no-such-symbol summary
392 drop "Symbol not found" ;
394 M: no-such-symbol compiler-error-type
397 : no-such-symbol ( name -- )
399 compiling-word get compiler-error ;
401 : check-dlsym ( symbols dll -- )
403 dupd '[ _ dlsym ] any?
404 [ drop ] [ no-such-symbol ] if
406 dll-path no-such-library drop
409 : stdcall-mangle ( symbol node -- symbol )
411 swap parameters>> parameter-sizes drop
412 number>string 3append ;
414 : alien-invoke-dlsym ( params -- symbols dll )
415 dup function>> dup pick stdcall-mangle 2array
416 swap library>> library dup [ dll>> ] when
419 M: ##alien-invoke generate-insn
421 ! Save registers for GC
422 %prepare-alien-invoke
424 dup objects>registers
427 dup alien-invoke-dlsym %alien-invoke
433 M: ##alien-indirect generate-insn
435 ! Save registers for GC
436 %prepare-alien-invoke
437 ! Save alien at top of stack to temporary storage
438 %prepare-alien-indirect
440 dup objects>registers
442 ! Call alien in temporary storage
449 : box-parameters ( params -- )
450 alien-parameters [ box-parameter ] each-parameter ;
452 : registers>objects ( node -- )
454 dup \ %save-param-reg move-parameters
455 "nest_stacks" f %alien-invoke
459 TUPLE: callback-context ;
461 : current-callback ( -- id ) 2 getenv ;
463 : wait-to-return ( token -- )
464 dup current-callback eq? [
467 yield-hook get call( -- ) wait-to-return
470 : do-callback ( quot token -- )
474 wait-to-return ; inline
476 : callback-return-quot ( ctype -- quot )
478 { [ dup "void" = ] [ drop [ ] ] }
479 { [ dup large-struct? ] [ heap-size '[ _ memcpy ] ] }
480 [ c-type c-type-unboxer-quot ]
483 : callback-prep-quot ( params -- quot )
484 parameters>> [ c-type c-type-boxer-quot ] map spread>quot ;
486 : wrap-callback-quot ( params -- quot )
488 [ callback-prep-quot ]
490 [ callback-return-quot ] tri 3append ,
491 [ callback-context new do-callback ] %
494 : %unnest-stacks ( -- ) "unnest_stacks" f %alien-invoke ;
496 M: ##callback-return generate-insn
497 #! All the extra book-keeping for %unwind is only for x86.
498 #! On other platforms its an alias for %return.
499 params>> %callback-return ;
501 M: ##alien-callback generate-insn
503 [ registers>objects ]
504 [ wrap-callback-quot %alien-callback ]
505 [ alien-return [ %unnest-stacks ] [ %callback-value ] if-void ]
508 M: _prologue generate-insn
509 stack-frame>> [ stack-frame set ] [ total-size>> %prologue ] bi ;
511 M: _epilogue generate-insn
512 stack-frame>> total-size>> %epilogue ;
514 M: _label generate-insn
515 id>> lookup-label , ;
517 M: _branch generate-insn
518 label>> lookup-label %jump-label ;
520 : >compare< ( insn -- dst temp cc src1 src2 )
529 M: ##compare generate-insn >compare< %compare ;
530 M: ##compare-imm generate-insn >compare< %compare-imm ;
531 M: ##compare-float generate-insn >compare< %compare-float ;
533 : >binary-branch< ( insn -- label cc src1 src2 )
535 [ label>> lookup-label ]
541 M: _compare-branch generate-insn
542 >binary-branch< %compare-branch ;
544 M: _compare-imm-branch generate-insn
545 >binary-branch< %compare-imm-branch ;
547 M: _compare-float-branch generate-insn
548 >binary-branch< %compare-float-branch ;
550 M: _spill generate-insn
551 [ src>> ] [ n>> ] [ class>> ] tri {
552 { int-regs [ %spill-integer ] }
553 { double-float-regs [ %spill-float ] }
556 M: _reload generate-insn
557 [ dst>> ] [ n>> ] [ class>> ] tri {
558 { int-regs [ %reload-integer ] }
559 { double-float-regs [ %reload-float ] }
562 M: _spill-counts generate-insn drop ;