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 locals
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 -- )
27 TUPLE: asm label code calls ;
31 : add-call ( word -- )
32 #! Compile this word later.
35 SYMBOL: compiling-word
37 : compiled-stack-traces? ( -- ? ) 67 getenv ;
39 ! Mapping _label IDs to label instances
42 : init-generator ( word -- )
46 compiled-stack-traces? [ compiling-word get add-literal ] when ;
48 : generate-insns ( asm -- code )
50 [ word>> init-generator ]
54 [ class insn-counts get inc-at ]
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>> ] [ val>> ] bi %load-immediate ;
75 M: ##load-reference generate-insn
76 [ dst>> ] [ obj>> ] bi %load-reference ;
78 M: ##peek generate-insn
79 [ dst>> ] [ loc>> ] bi %peek ;
81 M: ##replace generate-insn
82 [ src>> ] [ 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>> ] [ temp>> ] 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 )
105 { [ dst>> ] [ obj>> ] [ slot>> ] [ tag>> ] } cleave ; inline
107 M: ##slot generate-insn
108 [ >slot< ] [ temp>> ] bi %slot ;
110 M: ##slot-imm generate-insn
113 : >set-slot< ( insn -- src obj slot tag )
114 { [ src>> ] [ obj>> ] [ slot>> ] [ tag>> ] } cleave ; inline
116 M: ##set-slot generate-insn
117 [ >set-slot< ] [ temp>> ] bi %set-slot ;
119 M: ##set-slot-imm generate-insn
120 >set-slot< %set-slot-imm ;
122 M: ##string-nth generate-insn
123 { [ dst>> ] [ obj>> ] [ index>> ] [ temp>> ] } cleave %string-nth ;
125 M: ##set-string-nth-fast generate-insn
126 { [ src>> ] [ obj>> ] [ index>> ] [ temp>> ] } cleave %set-string-nth-fast ;
128 : dst/src ( insn -- dst src )
129 [ dst>> ] [ src>> ] bi ; inline
131 : dst/src1/src2 ( insn -- dst src1 src2 )
132 [ dst>> ] [ src1>> ] [ src2>> ] tri ; inline
134 M: ##add generate-insn dst/src1/src2 %add ;
135 M: ##add-imm generate-insn dst/src1/src2 %add-imm ;
136 M: ##sub generate-insn dst/src1/src2 %sub ;
137 M: ##sub-imm generate-insn dst/src1/src2 %sub-imm ;
138 M: ##mul generate-insn dst/src1/src2 %mul ;
139 M: ##mul-imm generate-insn dst/src1/src2 %mul-imm ;
140 M: ##and generate-insn dst/src1/src2 %and ;
141 M: ##and-imm generate-insn dst/src1/src2 %and-imm ;
142 M: ##or generate-insn dst/src1/src2 %or ;
143 M: ##or-imm generate-insn dst/src1/src2 %or-imm ;
144 M: ##xor generate-insn dst/src1/src2 %xor ;
145 M: ##xor-imm generate-insn dst/src1/src2 %xor-imm ;
146 M: ##shl generate-insn dst/src1/src2 %shl ;
147 M: ##shl-imm generate-insn dst/src1/src2 %shl-imm ;
148 M: ##shr generate-insn dst/src1/src2 %shr ;
149 M: ##shr-imm generate-insn dst/src1/src2 %shr-imm ;
150 M: ##sar generate-insn dst/src1/src2 %sar ;
151 M: ##sar-imm generate-insn dst/src1/src2 %sar-imm ;
152 M: ##not generate-insn dst/src %not ;
153 M: ##log2 generate-insn dst/src %log2 ;
155 : label/dst/src1/src2 ( insn -- label dst src1 src2 )
156 [ label>> lookup-label ] [ dst/src1/src2 ] bi ; inline
158 M: _fixnum-add generate-insn label/dst/src1/src2 %fixnum-add ;
159 M: _fixnum-sub generate-insn label/dst/src1/src2 %fixnum-sub ;
160 M: _fixnum-mul generate-insn label/dst/src1/src2 %fixnum-mul ;
162 : dst/src/temp ( insn -- dst src temp )
163 [ dst/src ] [ temp>> ] bi ; inline
165 M: ##integer>bignum generate-insn dst/src/temp %integer>bignum ;
166 M: ##bignum>integer generate-insn dst/src/temp %bignum>integer ;
168 M: ##add-float generate-insn dst/src1/src2 %add-float ;
169 M: ##sub-float generate-insn dst/src1/src2 %sub-float ;
170 M: ##mul-float generate-insn dst/src1/src2 %mul-float ;
171 M: ##div-float generate-insn dst/src1/src2 %div-float ;
173 M: ##sqrt generate-insn dst/src %sqrt ;
175 M: ##integer>float generate-insn dst/src %integer>float ;
176 M: ##float>integer generate-insn dst/src %float>integer ;
178 M: ##copy generate-insn [ dst/src ] [ rep>> ] bi %copy ;
180 M: ##unbox-float generate-insn dst/src %unbox-float ;
181 M: ##unbox-any-c-ptr generate-insn dst/src/temp %unbox-any-c-ptr ;
182 M: ##box-float generate-insn dst/src/temp %box-float ;
183 M: ##box-alien generate-insn dst/src/temp %box-alien ;
185 M: ##box-displaced-alien generate-insn
186 [ dst/src1/src2 ] [ temp>> ] bi %box-displaced-alien ;
188 M: ##alien-unsigned-1 generate-insn dst/src %alien-unsigned-1 ;
189 M: ##alien-unsigned-2 generate-insn dst/src %alien-unsigned-2 ;
190 M: ##alien-unsigned-4 generate-insn dst/src %alien-unsigned-4 ;
191 M: ##alien-signed-1 generate-insn dst/src %alien-signed-1 ;
192 M: ##alien-signed-2 generate-insn dst/src %alien-signed-2 ;
193 M: ##alien-signed-4 generate-insn dst/src %alien-signed-4 ;
194 M: ##alien-cell generate-insn dst/src %alien-cell ;
195 M: ##alien-float generate-insn dst/src %alien-float ;
196 M: ##alien-double generate-insn dst/src %alien-double ;
198 : >alien-setter< ( insn -- src value )
199 [ src>> ] [ value>> ] bi ; inline
201 M: ##set-alien-integer-1 generate-insn >alien-setter< %set-alien-integer-1 ;
202 M: ##set-alien-integer-2 generate-insn >alien-setter< %set-alien-integer-2 ;
203 M: ##set-alien-integer-4 generate-insn >alien-setter< %set-alien-integer-4 ;
204 M: ##set-alien-cell generate-insn >alien-setter< %set-alien-cell ;
205 M: ##set-alien-float generate-insn >alien-setter< %set-alien-float ;
206 M: ##set-alien-double generate-insn >alien-setter< %set-alien-double ;
208 M: ##allot generate-insn
217 M: ##write-barrier generate-insn
224 : wipe-locs ( locs temp -- )
227 [ 0 %load-immediate ]
228 [ swap [ %replace ] with each ] bi
231 GENERIC# save-gc-root 1 ( gc-root operand temp -- )
233 M:: spill-slot save-gc-root ( gc-root operand temp -- )
234 temp operand n>> int-rep %reload
235 gc-root temp %save-gc-root ;
237 M: object save-gc-root drop %save-gc-root ;
239 : save-gc-roots ( gc-roots temp -- ) '[ _ save-gc-root ] assoc-each ;
241 : save-data-regs ( data-regs -- ) [ first3 %spill ] each ;
243 GENERIC# load-gc-root 1 ( gc-root operand temp -- )
245 M:: spill-slot load-gc-root ( gc-root operand temp -- )
246 gc-root temp %load-gc-root
247 temp operand n>> int-rep %spill ;
249 M: object load-gc-root drop %load-gc-root ;
251 : load-gc-roots ( gc-roots temp -- ) '[ _ load-gc-root ] assoc-each ;
253 : load-data-regs ( data-regs -- ) [ first3 %reload ] each ;
258 [ [ "no-gc" get ] dip [ temp1>> ] [ temp2>> ] bi %check-nursery ]
259 [ [ uninitialized-locs>> ] [ temp1>> ] bi wipe-locs ]
260 [ data-values>> save-data-regs ]
261 [ [ tagged-values>> ] [ temp1>> ] bi save-gc-roots ]
262 [ tagged-values>> length %call-gc ]
263 [ [ tagged-values>> ] [ temp1>> ] bi load-gc-roots ]
264 [ data-values>> load-data-regs ]
266 "no-gc" resolve-label ;
268 M: _loop-entry generate-insn drop %loop-entry ;
270 M: ##alien-global generate-insn
271 [ dst>> ] [ symbol>> ] [ library>> ] tri
275 GENERIC: next-fastcall-param ( rep -- )
277 : ?dummy-stack-params ( rep -- )
278 dummy-stack-params? [ rep-size cell align stack-params +@ ] [ drop ] if ;
280 : ?dummy-int-params ( rep -- )
281 dummy-int-params? [ rep-size cell /i 1 max int-regs +@ ] [ drop ] if ;
283 : ?dummy-fp-params ( rep -- )
284 drop dummy-fp-params? [ float-regs inc ] when ;
286 M: int-rep next-fastcall-param
287 int-regs inc [ ?dummy-stack-params ] [ ?dummy-fp-params ] bi ;
289 M: single-float-rep next-fastcall-param
290 float-regs inc [ ?dummy-stack-params ] [ ?dummy-int-params ] bi ;
292 M: double-float-rep next-fastcall-param
293 float-regs inc [ ?dummy-stack-params ] [ ?dummy-int-params ] bi ;
295 GENERIC: reg-class-full? ( reg-class -- ? )
297 M: stack-params reg-class-full? drop t ;
299 M: reg-class reg-class-full?
300 [ get ] [ param-regs length ] bi >= ;
302 : alloc-stack-param ( rep -- n reg-class rep )
304 [ rep-size cell align stack-params +@ ] dip
307 : alloc-fastcall-param ( rep -- n reg-class rep )
308 [ [ reg-class-of get ] [ reg-class-of ] [ next-fastcall-param ] tri ] keep ;
310 : alloc-parameter ( parameter -- reg rep )
311 c-type-rep dup reg-class-of reg-class-full?
312 [ alloc-stack-param ] [ alloc-fastcall-param ] if
315 : (flatten-int-type) ( size -- seq )
316 cell /i "void*" c-type <repetition> ;
318 GENERIC: flatten-value-type ( type -- types )
320 M: object flatten-value-type 1array ;
322 M: struct-type flatten-value-type ( type -- types )
323 stack-size cell align (flatten-int-type) ;
325 M: long-long-type flatten-value-type ( type -- types )
326 stack-size cell align (flatten-int-type) ;
328 : flatten-value-types ( params -- params )
329 #! Convert value type structs to consecutive void*s.
333 [ parameter-align (flatten-int-type) % ] keep
334 [ stack-size cell align + ] keep
339 : each-parameter ( parameters quot -- )
340 [ [ parameter-sizes nip ] keep ] dip 2each ; inline
342 : reverse-each-parameter ( parameters quot -- )
343 [ [ parameter-sizes nip ] keep ] dip 2reverse-each ; inline
345 : reset-fastcall-counts ( -- )
346 { int-regs float-regs stack-params } [ 0 swap set ] each ;
348 : with-param-regs ( quot -- )
349 #! In quot you can call alloc-parameter
350 [ reset-fastcall-counts call ] with-scope ; inline
352 : move-parameters ( node word -- )
353 #! Moves values from C stack to registers (if word is
354 #! %load-param-reg) and registers to C stack (if word is
356 [ alien-parameters flatten-value-types ]
357 [ '[ alloc-parameter _ execute ] ]
358 bi* each-parameter ; inline
360 : unbox-parameters ( offset node -- )
362 %prepare-unbox [ over + ] dip unbox-parameter
363 ] reverse-each-parameter drop ;
365 : prepare-box-struct ( node -- offset )
366 #! Return offset on C stack where to store unboxed
367 #! parameters. If the C function is returning a structure,
368 #! the first parameter is an implicit target area pointer,
369 #! so we need to use a different offset.
370 return>> large-struct?
371 [ %prepare-box-struct cell ] [ 0 ] if ;
373 : objects>registers ( params -- )
374 #! Generate code for unboxing a list of C types, then
375 #! generate code for moving these parameters to registers on
376 #! architectures where parameters are passed in registers.
378 [ prepare-box-struct ] keep
379 [ unbox-parameters ] keep
380 \ %load-param-reg move-parameters
383 : box-return* ( node -- )
384 return>> [ ] [ box-return ] if-void ;
386 : check-dlsym ( symbols dll -- )
388 dupd '[ _ dlsym ] any?
389 [ drop ] [ compiling-word get no-such-symbol ] if
391 dll-path compiling-word get no-such-library drop
394 : stdcall-mangle ( symbol params -- symbol )
395 parameters>> parameter-sizes drop number>string "@" glue ;
397 : alien-invoke-dlsym ( params -- symbols dll )
398 [ [ function>> dup ] keep stdcall-mangle 2array ]
399 [ library>> library dup [ dll>> ] when ]
400 bi 2dup check-dlsym ;
402 M: ##alien-invoke generate-insn
404 ! Save registers for GC
405 %prepare-alien-invoke
407 dup objects>registers
410 dup alien-invoke-dlsym %alien-invoke
416 M: ##alien-indirect generate-insn
418 ! Save registers for GC
419 %prepare-alien-invoke
420 ! Save alien at top of stack to temporary storage
421 %prepare-alien-indirect
423 dup objects>registers
425 ! Call alien in temporary storage
432 : box-parameters ( params -- )
433 alien-parameters [ box-parameter ] each-parameter ;
435 : registers>objects ( node -- )
436 ! Generate code for boxing input parameters in a callback.
438 dup \ %save-param-reg move-parameters
439 "nest_stacks" f %alien-invoke
443 TUPLE: callback-context ;
445 : current-callback ( -- id ) 2 getenv ;
447 : wait-to-return ( token -- )
448 dup current-callback eq? [
451 yield-hook get call( -- ) wait-to-return
454 : do-callback ( quot token -- )
456 [ 2 setenv call ] keep
457 wait-to-return ; inline
459 : callback-return-quot ( ctype -- quot )
461 { [ dup "void" = ] [ drop [ ] ] }
462 { [ dup large-struct? ] [ heap-size '[ _ memcpy ] ] }
463 [ c-type c-type-unboxer-quot ]
466 : callback-prep-quot ( params -- quot )
467 parameters>> [ c-type c-type-boxer-quot ] map spread>quot ;
469 : wrap-callback-quot ( params -- quot )
471 [ callback-prep-quot ]
473 [ callback-return-quot ] tri 3append ,
474 [ callback-context new do-callback ] %
477 : %unnest-stacks ( -- ) "unnest_stacks" f %alien-invoke ;
479 M: ##callback-return generate-insn
480 #! All the extra book-keeping for %unwind is only for x86.
481 #! On other platforms its an alias for %return.
482 params>> %callback-return ;
484 M: ##alien-callback generate-insn
486 [ registers>objects ]
487 [ wrap-callback-quot %alien-callback ]
488 [ alien-return [ %unnest-stacks ] [ %callback-value ] if-void ]
491 M: _prologue generate-insn
492 stack-frame>> [ stack-frame set ] [ total-size>> %prologue ] bi ;
494 M: _epilogue generate-insn
495 stack-frame>> total-size>> %epilogue ;
497 M: _label generate-insn
498 id>> lookup-label resolve-label ;
500 M: _branch generate-insn
501 label>> lookup-label %jump-label ;
503 : >compare< ( insn -- dst temp cc src1 src2 )
512 M: ##compare generate-insn >compare< %compare ;
513 M: ##compare-imm generate-insn >compare< %compare-imm ;
514 M: ##compare-float generate-insn >compare< %compare-float ;
516 : >binary-branch< ( insn -- label cc src1 src2 )
518 [ label>> lookup-label ]
524 M: _compare-branch generate-insn
525 >binary-branch< %compare-branch ;
527 M: _compare-imm-branch generate-insn
528 >binary-branch< %compare-imm-branch ;
530 M: _compare-float-branch generate-insn
531 >binary-branch< %compare-float-branch ;
533 M: _spill generate-insn
534 [ src>> ] [ n>> ] [ rep>> ] tri %spill ;
536 M: _reload generate-insn
537 [ dst>> ] [ n>> ] [ rep>> ] tri %reload ;
539 M: _spill-area-size generate-insn drop ;