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
13 compiler.cfg.instructions
14 compiler.cfg.stack-frame
15 compiler.cfg.registers
17 compiler.codegen.fixup
21 GENERIC: generate-insn ( insn -- )
25 : register ( vreg -- operand )
26 registers get at [ "Bad value" throw ] unless* ;
28 : ?register ( obj -- operand )
29 dup vreg? [ register ] when ;
31 TUPLE: asm label code calls ;
35 : add-call ( word -- )
36 #! Compile this word later.
39 SYMBOL: compiling-word
41 : compiled-stack-traces? ( -- ? ) 67 getenv ;
43 ! Mapping _label IDs to label instances
46 : init-generator ( word -- )
50 compiled-stack-traces? [ compiling-word get add-literal ] when ;
52 : generate-insns ( asm -- code )
54 [ word>> init-generator ]
57 [ [ regs>> registers set ] [ generate-insn ] bi ] each
61 : generate ( mr -- asm )
63 [ label>> ] [ generate-insns ] bi calls get
67 : lookup-label ( id -- label )
68 labels get [ drop <label> ] cache ;
70 M: ##no-tco generate-insn drop ;
72 M: ##load-immediate generate-insn
73 [ dst>> register ] [ val>> ] bi %load-immediate ;
75 M: ##load-reference generate-insn
76 [ dst>> register ] [ obj>> ] bi %load-reference ;
78 M: ##peek generate-insn
79 [ dst>> register ] [ loc>> ] bi %peek ;
81 M: ##replace generate-insn
82 [ src>> register ] [ loc>> ] bi %replace ;
84 M: ##inc-d generate-insn n>> %inc-d ;
86 M: ##inc-r generate-insn n>> %inc-r ;
88 M: ##call generate-insn
89 word>> dup sub-primitive>>
90 [ first % ] [ [ add-call ] [ %call ] bi ] ?if ;
92 M: ##jump generate-insn word>> [ add-call ] [ %jump ] bi ;
94 M: ##return generate-insn drop %return ;
96 M: _dispatch generate-insn
97 [ src>> register ] [ temp>> register ] bi %dispatch ;
99 M: _dispatch-label generate-insn
101 cell 0 <repetition> %
102 rc-absolute-cell label-fixup ;
104 : >slot< ( insn -- dst obj slot tag )
112 M: ##slot generate-insn
113 [ >slot< ] [ temp>> register ] bi %slot ;
115 M: ##slot-imm generate-insn
118 : >set-slot< ( insn -- src obj slot tag )
126 M: ##set-slot generate-insn
127 [ >set-slot< ] [ temp>> register ] bi %set-slot ;
129 M: ##set-slot-imm generate-insn
130 >set-slot< %set-slot-imm ;
132 M: ##string-nth generate-insn
138 } cleave %string-nth ;
140 M: ##set-string-nth-fast generate-insn
146 } cleave %set-string-nth-fast ;
148 : dst/src ( insn -- dst src )
149 [ dst>> register ] [ src>> register ] bi ; inline
151 : dst/src1/src2 ( insn -- dst src1 src2 )
154 [ src2>> ?register ] tri ; inline
156 M: ##add generate-insn dst/src1/src2 %add ;
157 M: ##add-imm generate-insn dst/src1/src2 %add-imm ;
158 M: ##sub generate-insn dst/src1/src2 %sub ;
159 M: ##sub-imm generate-insn dst/src1/src2 %sub-imm ;
160 M: ##mul generate-insn dst/src1/src2 %mul ;
161 M: ##mul-imm generate-insn dst/src1/src2 %mul-imm ;
162 M: ##and generate-insn dst/src1/src2 %and ;
163 M: ##and-imm generate-insn dst/src1/src2 %and-imm ;
164 M: ##or generate-insn dst/src1/src2 %or ;
165 M: ##or-imm generate-insn dst/src1/src2 %or-imm ;
166 M: ##xor generate-insn dst/src1/src2 %xor ;
167 M: ##xor-imm generate-insn dst/src1/src2 %xor-imm ;
168 M: ##shl generate-insn dst/src1/src2 %shl ;
169 M: ##shl-imm generate-insn dst/src1/src2 %shl-imm ;
170 M: ##shr generate-insn dst/src1/src2 %shr ;
171 M: ##shr-imm generate-insn dst/src1/src2 %shr-imm ;
172 M: ##sar generate-insn dst/src1/src2 %sar ;
173 M: ##sar-imm generate-insn dst/src1/src2 %sar-imm ;
174 M: ##not generate-insn dst/src %not ;
175 M: ##log2 generate-insn dst/src %log2 ;
177 : label/dst/src1/src2 ( insn -- label dst src1 src2 )
178 [ label>> lookup-label ] [ dst/src1/src2 ] bi ; inline
180 M: _fixnum-add generate-insn label/dst/src1/src2 %fixnum-add ;
181 M: _fixnum-sub generate-insn label/dst/src1/src2 %fixnum-sub ;
182 M: _fixnum-mul generate-insn label/dst/src1/src2 %fixnum-mul ;
184 : dst/src/temp ( insn -- dst src temp )
185 [ dst/src ] [ temp>> register ] bi ; inline
187 M: ##integer>bignum generate-insn dst/src/temp %integer>bignum ;
188 M: ##bignum>integer generate-insn dst/src/temp %bignum>integer ;
190 M: ##add-float generate-insn dst/src1/src2 %add-float ;
191 M: ##sub-float generate-insn dst/src1/src2 %sub-float ;
192 M: ##mul-float generate-insn dst/src1/src2 %mul-float ;
193 M: ##div-float generate-insn dst/src1/src2 %div-float ;
195 M: ##integer>float generate-insn dst/src %integer>float ;
196 M: ##float>integer generate-insn dst/src %float>integer ;
198 M: ##copy generate-insn dst/src %copy ;
199 M: ##copy-float generate-insn dst/src %copy-float ;
200 M: ##unbox-float generate-insn dst/src %unbox-float ;
201 M: ##unbox-any-c-ptr generate-insn dst/src/temp %unbox-any-c-ptr ;
202 M: ##box-float generate-insn dst/src/temp %box-float ;
203 M: ##box-alien generate-insn dst/src/temp %box-alien ;
205 M: ##alien-unsigned-1 generate-insn dst/src %alien-unsigned-1 ;
206 M: ##alien-unsigned-2 generate-insn dst/src %alien-unsigned-2 ;
207 M: ##alien-unsigned-4 generate-insn dst/src %alien-unsigned-4 ;
208 M: ##alien-signed-1 generate-insn dst/src %alien-signed-1 ;
209 M: ##alien-signed-2 generate-insn dst/src %alien-signed-2 ;
210 M: ##alien-signed-4 generate-insn dst/src %alien-signed-4 ;
211 M: ##alien-cell generate-insn dst/src %alien-cell ;
212 M: ##alien-float generate-insn dst/src %alien-float ;
213 M: ##alien-double generate-insn dst/src %alien-double ;
215 : >alien-setter< ( insn -- src value )
216 [ src>> register ] [ value>> register ] bi ; inline
218 M: ##set-alien-integer-1 generate-insn >alien-setter< %set-alien-integer-1 ;
219 M: ##set-alien-integer-2 generate-insn >alien-setter< %set-alien-integer-2 ;
220 M: ##set-alien-integer-4 generate-insn >alien-setter< %set-alien-integer-4 ;
221 M: ##set-alien-cell generate-insn >alien-setter< %set-alien-cell ;
222 M: ##set-alien-float generate-insn >alien-setter< %set-alien-float ;
223 M: ##set-alien-double generate-insn >alien-setter< %set-alien-double ;
225 M: ##allot generate-insn
234 M: ##write-barrier generate-insn
248 M: _loop-entry generate-insn drop %loop-entry ;
250 M: ##alien-global generate-insn
251 [ dst>> register ] [ symbol>> ] [ library>> ] tri
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 : check-dlsym ( symbols dll -- )
377 dupd '[ _ dlsym ] any?
378 [ drop ] [ compiling-word get no-such-symbol ] if
380 dll-path compiling-word get no-such-library drop
383 : stdcall-mangle ( symbol params -- symbol )
384 parameters>> parameter-sizes drop number>string "@" glue ;
386 : alien-invoke-dlsym ( params -- symbols dll )
387 [ [ function>> dup ] keep stdcall-mangle 2array ]
388 [ library>> library dup [ dll>> ] when ]
389 bi 2dup check-dlsym ;
391 M: ##alien-invoke generate-insn
393 ! Save registers for GC
394 %prepare-alien-invoke
396 dup objects>registers
399 dup alien-invoke-dlsym %alien-invoke
405 M: ##alien-indirect generate-insn
407 ! Save registers for GC
408 %prepare-alien-invoke
409 ! Save alien at top of stack to temporary storage
410 %prepare-alien-indirect
412 dup objects>registers
414 ! Call alien in temporary storage
421 : box-parameters ( params -- )
422 alien-parameters [ box-parameter ] each-parameter ;
424 : registers>objects ( node -- )
426 dup \ %save-param-reg move-parameters
427 "nest_stacks" f %alien-invoke
431 TUPLE: callback-context ;
433 : current-callback ( -- id ) 2 getenv ;
435 : wait-to-return ( token -- )
436 dup current-callback eq? [
439 yield-hook get call( -- ) wait-to-return
442 : do-callback ( quot token -- )
444 [ 2 setenv call ] keep
445 wait-to-return ; inline
447 : callback-return-quot ( ctype -- quot )
449 { [ dup "void" = ] [ drop [ ] ] }
450 { [ dup large-struct? ] [ heap-size '[ _ memcpy ] ] }
451 [ c-type c-type-unboxer-quot ]
454 : callback-prep-quot ( params -- quot )
455 parameters>> [ c-type c-type-boxer-quot ] map spread>quot ;
457 : wrap-callback-quot ( params -- quot )
459 [ callback-prep-quot ]
461 [ callback-return-quot ] tri 3append ,
462 [ callback-context new do-callback ] %
465 : %unnest-stacks ( -- ) "unnest_stacks" f %alien-invoke ;
467 M: ##callback-return generate-insn
468 #! All the extra book-keeping for %unwind is only for x86.
469 #! On other platforms its an alias for %return.
470 params>> %callback-return ;
472 M: ##alien-callback generate-insn
474 [ registers>objects ]
475 [ wrap-callback-quot %alien-callback ]
476 [ alien-return [ %unnest-stacks ] [ %callback-value ] if-void ]
479 M: _prologue generate-insn
480 stack-frame>> [ stack-frame set ] [ total-size>> %prologue ] bi ;
482 M: _epilogue generate-insn
483 stack-frame>> total-size>> %epilogue ;
485 M: _label generate-insn
486 id>> lookup-label resolve-label ;
488 M: _branch generate-insn
489 label>> lookup-label %jump-label ;
491 : >compare< ( insn -- dst temp cc src1 src2 )
500 M: ##compare generate-insn >compare< %compare ;
501 M: ##compare-imm generate-insn >compare< %compare-imm ;
502 M: ##compare-float generate-insn >compare< %compare-float ;
504 : >binary-branch< ( insn -- label cc src1 src2 )
506 [ label>> lookup-label ]
512 M: _compare-branch generate-insn
513 >binary-branch< %compare-branch ;
515 M: _compare-imm-branch generate-insn
516 >binary-branch< %compare-imm-branch ;
518 M: _compare-float-branch generate-insn
519 >binary-branch< %compare-float-branch ;
521 M: _spill generate-insn
522 [ src>> ] [ n>> ] [ class>> ] tri {
523 { int-regs [ %spill-integer ] }
524 { double-float-regs [ %spill-float ] }
527 M: _reload generate-insn
528 [ dst>> ] [ n>> ] [ class>> ] tri {
529 { int-regs [ %reload-integer ] }
530 { double-float-regs [ %reload-float ] }
533 M: _copy generate-insn
534 [ dst>> ] [ src>> ] [ class>> ] tri {
535 { int-regs [ %copy ] }
536 { double-float-regs [ %copy-float ] }
539 M: _spill-counts generate-insn drop ;