1 ! Copyright (C) 2008, 2010 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
6 alien.strings alien.arrays alien.complex alien.libraries sets libc
7 continuations.private fry cpu.architecture classes classes.struct locals
8 source-files.errors slots parser generic.parser strings
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 ! Mapping _label IDs to label instances
38 : init-generator ( -- )
40 V{ } clone calls set ;
42 : generate-insns ( asm -- code )
46 [ class insn-counts get inc-at ]
52 : generate ( mr -- asm )
54 [ label>> ] [ generate-insns ] bi calls get
58 : lookup-label ( id -- label )
59 labels get [ drop <label> ] cache ;
62 M: ##no-tco generate-insn drop ;
64 M: ##call generate-insn word>> [ add-call ] [ %call ] bi ;
66 M: ##jump generate-insn word>> [ add-call ] [ %jump ] bi ;
68 M: _dispatch-label generate-insn
71 rc-absolute-cell label-fixup ;
73 M: _prologue generate-insn
74 stack-frame>> [ stack-frame set ] [ total-size>> %prologue ] bi ;
76 M: _epilogue generate-insn
77 stack-frame>> total-size>> %epilogue ;
79 M: _spill-area-size generate-insn drop ;
81 ! Some meta-programming to generate simple code generators, where
82 ! the instruction is unpacked and then a %word is called
85 : insn-slot-quot ( spec -- quot )
86 name>> [ reader-word ] [ "label" = ] bi
87 [ \ lookup-label [ ] 2sequence ] [ [ ] 1sequence ] if ;
89 : codegen-method-body ( class word -- quot )
91 "insn-slots" word-prop
92 [ insn-slot-quot ] map cleave>quot
96 scan-word [ \ generate-insn create-method-in ] keep scan-word
97 codegen-method-body define ;
100 CODEGEN: ##load-immediate %load-immediate
101 CODEGEN: ##load-reference %load-reference
102 CODEGEN: ##load-constant %load-reference
103 CODEGEN: ##peek %peek
104 CODEGEN: ##replace %replace
105 CODEGEN: ##inc-d %inc-d
106 CODEGEN: ##inc-r %inc-r
107 CODEGEN: ##return %return
108 CODEGEN: ##slot %slot
109 CODEGEN: ##slot-imm %slot-imm
110 CODEGEN: ##set-slot %set-slot
111 CODEGEN: ##set-slot-imm %set-slot-imm
112 CODEGEN: ##string-nth %string-nth
113 CODEGEN: ##set-string-nth-fast %set-string-nth-fast
115 CODEGEN: ##add-imm %add-imm
117 CODEGEN: ##sub-imm %sub-imm
119 CODEGEN: ##mul-imm %mul-imm
121 CODEGEN: ##and-imm %and-imm
123 CODEGEN: ##or-imm %or-imm
125 CODEGEN: ##xor-imm %xor-imm
127 CODEGEN: ##shl-imm %shl-imm
129 CODEGEN: ##shr-imm %shr-imm
131 CODEGEN: ##sar-imm %sar-imm
136 CODEGEN: ##log2 %log2
137 CODEGEN: ##copy %copy
138 CODEGEN: ##add-float %add-float
139 CODEGEN: ##sub-float %sub-float
140 CODEGEN: ##mul-float %mul-float
141 CODEGEN: ##div-float %div-float
142 CODEGEN: ##min-float %min-float
143 CODEGEN: ##max-float %max-float
144 CODEGEN: ##sqrt %sqrt
145 CODEGEN: ##unary-float-function %unary-float-function
146 CODEGEN: ##binary-float-function %binary-float-function
147 CODEGEN: ##single>double-float %single>double-float
148 CODEGEN: ##double>single-float %double>single-float
149 CODEGEN: ##integer>float %integer>float
150 CODEGEN: ##float>integer %float>integer
151 CODEGEN: ##zero-vector %zero-vector
152 CODEGEN: ##fill-vector %fill-vector
153 CODEGEN: ##gather-vector-2 %gather-vector-2
154 CODEGEN: ##gather-vector-4 %gather-vector-4
155 CODEGEN: ##shuffle-vector-imm %shuffle-vector-imm
156 CODEGEN: ##shuffle-vector %shuffle-vector
157 CODEGEN: ##tail>head-vector %tail>head-vector
158 CODEGEN: ##merge-vector-head %merge-vector-head
159 CODEGEN: ##merge-vector-tail %merge-vector-tail
160 CODEGEN: ##signed-pack-vector %signed-pack-vector
161 CODEGEN: ##unsigned-pack-vector %unsigned-pack-vector
162 CODEGEN: ##unpack-vector-head %unpack-vector-head
163 CODEGEN: ##unpack-vector-tail %unpack-vector-tail
164 CODEGEN: ##integer>float-vector %integer>float-vector
165 CODEGEN: ##float>integer-vector %float>integer-vector
166 CODEGEN: ##compare-vector %compare-vector
167 CODEGEN: ##test-vector %test-vector
168 CODEGEN: ##add-vector %add-vector
169 CODEGEN: ##saturated-add-vector %saturated-add-vector
170 CODEGEN: ##add-sub-vector %add-sub-vector
171 CODEGEN: ##sub-vector %sub-vector
172 CODEGEN: ##saturated-sub-vector %saturated-sub-vector
173 CODEGEN: ##mul-vector %mul-vector
174 CODEGEN: ##mul-high-vector %mul-high-vector
175 CODEGEN: ##mul-horizontal-add-vector %mul-horizontal-add-vector
176 CODEGEN: ##saturated-mul-vector %saturated-mul-vector
177 CODEGEN: ##div-vector %div-vector
178 CODEGEN: ##min-vector %min-vector
179 CODEGEN: ##max-vector %max-vector
180 CODEGEN: ##avg-vector %avg-vector
181 CODEGEN: ##dot-vector %dot-vector
182 CODEGEN: ##sad-vector %sad-vector
183 CODEGEN: ##sqrt-vector %sqrt-vector
184 CODEGEN: ##horizontal-add-vector %horizontal-add-vector
185 CODEGEN: ##horizontal-sub-vector %horizontal-sub-vector
186 CODEGEN: ##horizontal-shl-vector-imm %horizontal-shl-vector-imm
187 CODEGEN: ##horizontal-shr-vector-imm %horizontal-shr-vector-imm
188 CODEGEN: ##abs-vector %abs-vector
189 CODEGEN: ##and-vector %and-vector
190 CODEGEN: ##andn-vector %andn-vector
191 CODEGEN: ##or-vector %or-vector
192 CODEGEN: ##xor-vector %xor-vector
193 CODEGEN: ##not-vector %not-vector
194 CODEGEN: ##shl-vector-imm %shl-vector-imm
195 CODEGEN: ##shr-vector-imm %shr-vector-imm
196 CODEGEN: ##shl-vector %shl-vector
197 CODEGEN: ##shr-vector %shr-vector
198 CODEGEN: ##integer>scalar %integer>scalar
199 CODEGEN: ##scalar>integer %scalar>integer
200 CODEGEN: ##vector>scalar %vector>scalar
201 CODEGEN: ##scalar>vector %scalar>vector
202 CODEGEN: ##box-alien %box-alien
203 CODEGEN: ##box-displaced-alien %box-displaced-alien
204 CODEGEN: ##unbox-alien %unbox-alien
205 CODEGEN: ##unbox-any-c-ptr %unbox-any-c-ptr
206 CODEGEN: ##alien-unsigned-1 %alien-unsigned-1
207 CODEGEN: ##alien-unsigned-2 %alien-unsigned-2
208 CODEGEN: ##alien-unsigned-4 %alien-unsigned-4
209 CODEGEN: ##alien-signed-1 %alien-signed-1
210 CODEGEN: ##alien-signed-2 %alien-signed-2
211 CODEGEN: ##alien-signed-4 %alien-signed-4
212 CODEGEN: ##alien-cell %alien-cell
213 CODEGEN: ##alien-float %alien-float
214 CODEGEN: ##alien-double %alien-double
215 CODEGEN: ##alien-vector %alien-vector
216 CODEGEN: ##set-alien-integer-1 %set-alien-integer-1
217 CODEGEN: ##set-alien-integer-2 %set-alien-integer-2
218 CODEGEN: ##set-alien-integer-4 %set-alien-integer-4
219 CODEGEN: ##set-alien-cell %set-alien-cell
220 CODEGEN: ##set-alien-float %set-alien-float
221 CODEGEN: ##set-alien-double %set-alien-double
222 CODEGEN: ##set-alien-vector %set-alien-vector
223 CODEGEN: ##allot %allot
224 CODEGEN: ##write-barrier %write-barrier
225 CODEGEN: ##write-barrier-imm %write-barrier-imm
226 CODEGEN: ##compare %compare
227 CODEGEN: ##compare-imm %compare-imm
228 CODEGEN: ##compare-float-ordered %compare-float-ordered
229 CODEGEN: ##compare-float-unordered %compare-float-unordered
230 CODEGEN: ##save-context %save-context
231 CODEGEN: ##vm-field-ptr %vm-field-ptr
233 CODEGEN: _fixnum-add %fixnum-add
234 CODEGEN: _fixnum-sub %fixnum-sub
235 CODEGEN: _fixnum-mul %fixnum-mul
236 CODEGEN: _label resolve-label
237 CODEGEN: _branch %jump-label
238 CODEGEN: _compare-branch %compare-branch
239 CODEGEN: _compare-imm-branch %compare-imm-branch
240 CODEGEN: _compare-float-ordered-branch %compare-float-ordered-branch
241 CODEGEN: _compare-float-unordered-branch %compare-float-unordered-branch
242 CODEGEN: _test-vector-branch %test-vector-branch
243 CODEGEN: _dispatch %dispatch
244 CODEGEN: _spill %spill
245 CODEGEN: _reload %reload
248 : wipe-locs ( locs temp -- )
251 [ 0 %load-immediate ]
252 [ swap [ %replace ] with each ] bi
255 GENERIC# save-gc-root 1 ( gc-root operand temp -- )
257 M:: spill-slot save-gc-root ( gc-root operand temp -- )
258 temp int-rep operand %reload
259 gc-root temp %save-gc-root ;
261 M: object save-gc-root drop %save-gc-root ;
263 : save-gc-roots ( gc-roots temp -- ) '[ _ save-gc-root ] assoc-each ;
265 : save-data-regs ( data-regs -- ) [ first3 %spill ] each ;
267 GENERIC# load-gc-root 1 ( gc-root operand temp -- )
269 M:: spill-slot load-gc-root ( gc-root operand temp -- )
270 gc-root temp %load-gc-root
271 temp int-rep operand %spill ;
273 M: object load-gc-root drop %load-gc-root ;
275 : load-gc-roots ( gc-roots temp -- ) '[ _ load-gc-root ] assoc-each ;
277 : load-data-regs ( data-regs -- ) [ first3 %reload ] each ;
279 M: ##gc generate-insn
282 [ [ "no-gc" get ] dip [ size>> ] [ temp1>> ] [ temp2>> ] tri %check-nursery ]
283 [ [ uninitialized-locs>> ] [ temp1>> ] bi wipe-locs ]
284 [ data-values>> save-data-regs ]
285 [ [ tagged-values>> ] [ temp1>> ] bi save-gc-roots ]
286 [ [ temp1>> ] [ temp2>> ] bi %save-context ]
287 [ [ tagged-values>> length ] [ temp1>> ] bi %call-gc ]
288 [ [ tagged-values>> ] [ temp1>> ] bi load-gc-roots ]
289 [ data-values>> load-data-regs ]
291 "no-gc" resolve-label ;
293 M: _loop-entry generate-insn drop %loop-entry ;
295 M: ##alien-global generate-insn
296 [ dst>> ] [ symbol>> ] [ library>> ] tri
300 GENERIC: next-fastcall-param ( rep -- )
302 : ?dummy-stack-params ( rep -- )
303 dummy-stack-params? [ rep-size cell align stack-params +@ ] [ drop ] if ;
305 : ?dummy-int-params ( rep -- )
306 dummy-int-params? [ rep-size cell /i 1 max int-regs +@ ] [ drop ] if ;
308 : ?dummy-fp-params ( rep -- )
309 drop dummy-fp-params? [ float-regs inc ] when ;
311 M: int-rep next-fastcall-param
312 int-regs inc [ ?dummy-stack-params ] [ ?dummy-fp-params ] bi ;
314 M: float-rep next-fastcall-param
315 float-regs inc [ ?dummy-stack-params ] [ ?dummy-int-params ] bi ;
317 M: double-rep next-fastcall-param
318 float-regs inc [ ?dummy-stack-params ] [ ?dummy-int-params ] bi ;
320 GENERIC: reg-class-full? ( reg-class -- ? )
322 M: stack-params reg-class-full? drop t ;
324 M: reg-class reg-class-full?
325 [ get ] [ param-regs length ] bi >= ;
327 : alloc-stack-param ( rep -- n reg-class rep )
329 [ rep-size cell align stack-params +@ ] dip
332 : alloc-fastcall-param ( rep -- n reg-class rep )
333 [ [ reg-class-of get ] [ reg-class-of ] [ next-fastcall-param ] tri ] keep ;
335 : alloc-parameter ( parameter -- reg rep )
336 c-type-rep dup reg-class-of reg-class-full?
337 [ alloc-stack-param ] [ alloc-fastcall-param ] if
340 : (flatten-int-type) ( type -- seq )
341 stack-size cell align cell /i void* c-type <repetition> ;
343 GENERIC: flatten-value-type ( type -- types )
345 M: object flatten-value-type 1array ;
346 M: struct-c-type flatten-value-type (flatten-int-type) ;
347 M: long-long-type flatten-value-type (flatten-int-type) ;
348 M: c-type-name flatten-value-type c-type flatten-value-type ;
350 : flatten-value-types ( params -- params )
351 #! Convert value type structs to consecutive void*s.
355 [ parameter-align cell /i void* c-type <repetition> % ] keep
356 [ stack-size cell align + ] keep
361 : each-parameter ( parameters quot -- )
362 [ [ parameter-offsets nip ] keep ] dip 2each ; inline
364 : reset-fastcall-counts ( -- )
365 { int-regs float-regs stack-params } [ 0 swap set ] each ;
367 : with-param-regs ( quot -- )
368 #! In quot you can call alloc-parameter
369 [ reset-fastcall-counts call ] with-scope ; inline
371 : move-parameters ( node word -- )
372 #! Moves values from C stack to registers (if word is
373 #! %load-param-reg) and registers to C stack (if word is
375 [ alien-parameters flatten-value-types ]
376 [ '[ alloc-parameter _ execute ] ]
377 bi* each-parameter ; inline
379 : reverse-each-parameter ( parameters quot -- )
380 [ [ parameter-offsets nip ] keep ] dip 2reverse-each ; inline
382 : prepare-unbox-parameters ( parameters -- offsets types indices )
383 [ parameter-offsets nip ] [ ] [ length iota <reversed> ] tri ;
385 : unbox-parameters ( offset node -- )
387 '[ prepare-unbox-parameters [ %pop-stack [ _ + ] dip unbox-parameter ] 3each ]
388 [ length neg %inc-d ]
391 : prepare-box-struct ( node -- offset )
392 #! Return offset on C stack where to store unboxed
393 #! parameters. If the C function is returning a structure,
394 #! the first parameter is an implicit target area pointer,
395 #! so we need to use a different offset.
396 return>> large-struct?
397 [ %prepare-box-struct cell ] [ 0 ] if ;
399 : objects>registers ( params -- )
400 #! Generate code for unboxing a list of C types, then
401 #! generate code for moving these parameters to registers on
402 #! architectures where parameters are passed in registers.
404 [ prepare-box-struct ] keep
405 [ unbox-parameters ] keep
406 \ %load-param-reg move-parameters
409 : box-return* ( node -- )
410 return>> [ ] [ box-return %push-stack ] if-void ;
412 GENERIC# dlsym-valid? 1 ( symbols dll -- ? )
414 M: string dlsym-valid? dlsym ;
416 M: array dlsym-valid? '[ _ dlsym ] any? ;
418 : check-dlsym ( symbols dll -- )
421 [ drop ] [ compiling-word get no-such-symbol ] if
423 dll-path compiling-word get no-such-library drop
426 : stdcall-mangle ( params -- symbols )
427 [ function>> ] [ parameters>> parameter-offsets drop number>string ] bi
428 [ drop ] [ "@" glue ] [ "@" glue "_" prepend ] 2tri
431 : alien-invoke-dlsym ( params -- symbols dll )
432 [ dup abi>> "stdcall" = [ stdcall-mangle ] [ function>> ] if ]
433 [ library>> load-library ]
434 bi 2dup check-dlsym ;
436 M: ##alien-invoke generate-insn
439 dup objects>registers
442 dup alien-invoke-dlsym %alien-invoke
447 M: ##alien-assembly generate-insn
450 dup objects>registers
453 dup quot>> call( -- )
458 M: ##alien-indirect generate-insn
460 ! Save alien at top of stack to temporary storage
461 %prepare-alien-indirect
463 dup objects>registers
465 ! Call alien in temporary storage
472 : box-parameters ( params -- )
473 alien-parameters [ box-parameter %push-context-stack ] each-parameter ;
475 : registers>objects ( node -- )
476 ! Generate code for boxing input parameters in a callback.
478 dup \ %save-param-reg move-parameters
483 TUPLE: callback-context ;
485 : current-callback ( -- id ) 2 special-object ;
487 : wait-to-return ( token -- )
488 dup current-callback eq? [
491 yield-hook get call( -- ) wait-to-return
494 : do-callback ( quot token -- )
496 [ 2 set-special-object call ] keep
497 wait-to-return ; inline
499 : callback-return-quot ( ctype -- quot )
501 { [ dup void? ] [ drop [ ] ] }
502 { [ dup large-struct? ] [ heap-size '[ _ memcpy ] ] }
503 [ c-type c-type-unboxer-quot ]
506 : callback-prep-quot ( params -- quot )
507 parameters>> [ c-type c-type-boxer-quot ] map spread>quot ;
509 : wrap-callback-quot ( params -- quot )
511 [ callback-prep-quot ]
513 [ callback-return-quot ] tri 3append ,
514 [ callback-context new do-callback ] %
517 M: ##alien-callback generate-insn
519 [ registers>objects ]
520 [ wrap-callback-quot %alien-callback ]
521 [ alien-return [ %unnest-stacks ] [ %callback-value ] if-void ]