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 ! Mapping _label IDs to label instances
30 : generate ( mr -- code )
34 [ class insn-counts get inc-at ]
40 : lookup-label ( id -- label )
41 labels get [ drop <label> ] cache ;
44 M: ##no-tco generate-insn drop ;
46 M: _dispatch-label generate-insn
49 rc-absolute-cell label-fixup ;
51 M: _prologue generate-insn
52 stack-frame>> [ stack-frame set ] [ total-size>> %prologue ] bi ;
54 M: _epilogue generate-insn
55 stack-frame>> total-size>> %epilogue ;
57 M: _spill-area-size generate-insn drop ;
59 ! Some meta-programming to generate simple code generators, where
60 ! the instruction is unpacked and then a %word is called
63 : insn-slot-quot ( spec -- quot )
64 name>> [ reader-word ] [ "label" = ] bi
65 [ \ lookup-label [ ] 2sequence ] [ [ ] 1sequence ] if ;
67 : codegen-method-body ( class word -- quot )
69 "insn-slots" word-prop
70 [ insn-slot-quot ] map cleave>quot
74 scan-word [ \ generate-insn create-method-in ] keep scan-word
75 codegen-method-body define ;
78 CODEGEN: ##load-immediate %load-immediate
79 CODEGEN: ##load-reference %load-reference
80 CODEGEN: ##load-constant %load-reference
82 CODEGEN: ##replace %replace
83 CODEGEN: ##inc-d %inc-d
84 CODEGEN: ##inc-r %inc-r
87 CODEGEN: ##return %return
89 CODEGEN: ##slot-imm %slot-imm
90 CODEGEN: ##set-slot %set-slot
91 CODEGEN: ##set-slot-imm %set-slot-imm
92 CODEGEN: ##string-nth %string-nth
93 CODEGEN: ##set-string-nth-fast %set-string-nth-fast
95 CODEGEN: ##add-imm %add-imm
97 CODEGEN: ##sub-imm %sub-imm
99 CODEGEN: ##mul-imm %mul-imm
101 CODEGEN: ##and-imm %and-imm
103 CODEGEN: ##or-imm %or-imm
105 CODEGEN: ##xor-imm %xor-imm
107 CODEGEN: ##shl-imm %shl-imm
109 CODEGEN: ##shr-imm %shr-imm
111 CODEGEN: ##sar-imm %sar-imm
116 CODEGEN: ##log2 %log2
117 CODEGEN: ##copy %copy
118 CODEGEN: ##add-float %add-float
119 CODEGEN: ##sub-float %sub-float
120 CODEGEN: ##mul-float %mul-float
121 CODEGEN: ##div-float %div-float
122 CODEGEN: ##min-float %min-float
123 CODEGEN: ##max-float %max-float
124 CODEGEN: ##sqrt %sqrt
125 CODEGEN: ##unary-float-function %unary-float-function
126 CODEGEN: ##binary-float-function %binary-float-function
127 CODEGEN: ##single>double-float %single>double-float
128 CODEGEN: ##double>single-float %double>single-float
129 CODEGEN: ##integer>float %integer>float
130 CODEGEN: ##float>integer %float>integer
131 CODEGEN: ##zero-vector %zero-vector
132 CODEGEN: ##fill-vector %fill-vector
133 CODEGEN: ##gather-vector-2 %gather-vector-2
134 CODEGEN: ##gather-vector-4 %gather-vector-4
135 CODEGEN: ##shuffle-vector-imm %shuffle-vector-imm
136 CODEGEN: ##shuffle-vector %shuffle-vector
137 CODEGEN: ##tail>head-vector %tail>head-vector
138 CODEGEN: ##merge-vector-head %merge-vector-head
139 CODEGEN: ##merge-vector-tail %merge-vector-tail
140 CODEGEN: ##signed-pack-vector %signed-pack-vector
141 CODEGEN: ##unsigned-pack-vector %unsigned-pack-vector
142 CODEGEN: ##unpack-vector-head %unpack-vector-head
143 CODEGEN: ##unpack-vector-tail %unpack-vector-tail
144 CODEGEN: ##integer>float-vector %integer>float-vector
145 CODEGEN: ##float>integer-vector %float>integer-vector
146 CODEGEN: ##compare-vector %compare-vector
147 CODEGEN: ##test-vector %test-vector
148 CODEGEN: ##add-vector %add-vector
149 CODEGEN: ##saturated-add-vector %saturated-add-vector
150 CODEGEN: ##add-sub-vector %add-sub-vector
151 CODEGEN: ##sub-vector %sub-vector
152 CODEGEN: ##saturated-sub-vector %saturated-sub-vector
153 CODEGEN: ##mul-vector %mul-vector
154 CODEGEN: ##mul-high-vector %mul-high-vector
155 CODEGEN: ##mul-horizontal-add-vector %mul-horizontal-add-vector
156 CODEGEN: ##saturated-mul-vector %saturated-mul-vector
157 CODEGEN: ##div-vector %div-vector
158 CODEGEN: ##min-vector %min-vector
159 CODEGEN: ##max-vector %max-vector
160 CODEGEN: ##avg-vector %avg-vector
161 CODEGEN: ##dot-vector %dot-vector
162 CODEGEN: ##sad-vector %sad-vector
163 CODEGEN: ##sqrt-vector %sqrt-vector
164 CODEGEN: ##horizontal-add-vector %horizontal-add-vector
165 CODEGEN: ##horizontal-sub-vector %horizontal-sub-vector
166 CODEGEN: ##horizontal-shl-vector-imm %horizontal-shl-vector-imm
167 CODEGEN: ##horizontal-shr-vector-imm %horizontal-shr-vector-imm
168 CODEGEN: ##abs-vector %abs-vector
169 CODEGEN: ##and-vector %and-vector
170 CODEGEN: ##andn-vector %andn-vector
171 CODEGEN: ##or-vector %or-vector
172 CODEGEN: ##xor-vector %xor-vector
173 CODEGEN: ##not-vector %not-vector
174 CODEGEN: ##shl-vector-imm %shl-vector-imm
175 CODEGEN: ##shr-vector-imm %shr-vector-imm
176 CODEGEN: ##shl-vector %shl-vector
177 CODEGEN: ##shr-vector %shr-vector
178 CODEGEN: ##integer>scalar %integer>scalar
179 CODEGEN: ##scalar>integer %scalar>integer
180 CODEGEN: ##vector>scalar %vector>scalar
181 CODEGEN: ##scalar>vector %scalar>vector
182 CODEGEN: ##box-alien %box-alien
183 CODEGEN: ##box-displaced-alien %box-displaced-alien
184 CODEGEN: ##unbox-alien %unbox-alien
185 CODEGEN: ##unbox-any-c-ptr %unbox-any-c-ptr
186 CODEGEN: ##alien-unsigned-1 %alien-unsigned-1
187 CODEGEN: ##alien-unsigned-2 %alien-unsigned-2
188 CODEGEN: ##alien-unsigned-4 %alien-unsigned-4
189 CODEGEN: ##alien-signed-1 %alien-signed-1
190 CODEGEN: ##alien-signed-2 %alien-signed-2
191 CODEGEN: ##alien-signed-4 %alien-signed-4
192 CODEGEN: ##alien-cell %alien-cell
193 CODEGEN: ##alien-float %alien-float
194 CODEGEN: ##alien-double %alien-double
195 CODEGEN: ##alien-vector %alien-vector
196 CODEGEN: ##set-alien-integer-1 %set-alien-integer-1
197 CODEGEN: ##set-alien-integer-2 %set-alien-integer-2
198 CODEGEN: ##set-alien-integer-4 %set-alien-integer-4
199 CODEGEN: ##set-alien-cell %set-alien-cell
200 CODEGEN: ##set-alien-float %set-alien-float
201 CODEGEN: ##set-alien-double %set-alien-double
202 CODEGEN: ##set-alien-vector %set-alien-vector
203 CODEGEN: ##allot %allot
204 CODEGEN: ##write-barrier %write-barrier
205 CODEGEN: ##write-barrier-imm %write-barrier-imm
206 CODEGEN: ##compare %compare
207 CODEGEN: ##compare-imm %compare-imm
208 CODEGEN: ##compare-float-ordered %compare-float-ordered
209 CODEGEN: ##compare-float-unordered %compare-float-unordered
210 CODEGEN: ##save-context %save-context
211 CODEGEN: ##vm-field-ptr %vm-field-ptr
213 CODEGEN: _fixnum-add %fixnum-add
214 CODEGEN: _fixnum-sub %fixnum-sub
215 CODEGEN: _fixnum-mul %fixnum-mul
216 CODEGEN: _label resolve-label
217 CODEGEN: _branch %jump-label
218 CODEGEN: _compare-branch %compare-branch
219 CODEGEN: _compare-imm-branch %compare-imm-branch
220 CODEGEN: _compare-float-ordered-branch %compare-float-ordered-branch
221 CODEGEN: _compare-float-unordered-branch %compare-float-unordered-branch
222 CODEGEN: _test-vector-branch %test-vector-branch
223 CODEGEN: _dispatch %dispatch
224 CODEGEN: _spill %spill
225 CODEGEN: _reload %reload
228 : wipe-locs ( locs temp -- )
231 [ 0 %load-immediate ]
232 [ swap [ %replace ] with each ] bi
235 GENERIC# save-gc-root 1 ( gc-root operand temp -- )
237 M:: spill-slot save-gc-root ( gc-root operand temp -- )
238 temp int-rep operand %reload
239 gc-root temp %save-gc-root ;
241 M: object save-gc-root drop %save-gc-root ;
243 : save-gc-roots ( gc-roots temp -- ) '[ _ save-gc-root ] assoc-each ;
245 : save-data-regs ( data-regs -- ) [ first3 %spill ] each ;
247 GENERIC# load-gc-root 1 ( gc-root operand temp -- )
249 M:: spill-slot load-gc-root ( gc-root operand temp -- )
250 gc-root temp %load-gc-root
251 temp int-rep operand %spill ;
253 M: object load-gc-root drop %load-gc-root ;
255 : load-gc-roots ( gc-roots temp -- ) '[ _ load-gc-root ] assoc-each ;
257 : load-data-regs ( data-regs -- ) [ first3 %reload ] each ;
259 M: ##gc generate-insn
262 [ [ "no-gc" get ] dip [ size>> ] [ temp1>> ] [ temp2>> ] tri %check-nursery ]
263 [ [ uninitialized-locs>> ] [ temp1>> ] bi wipe-locs ]
264 [ data-values>> save-data-regs ]
265 [ [ tagged-values>> ] [ temp1>> ] bi save-gc-roots ]
266 [ [ temp1>> ] [ temp2>> ] bi %save-context ]
267 [ [ tagged-values>> length ] [ temp1>> ] bi %call-gc ]
268 [ [ tagged-values>> ] [ temp1>> ] bi load-gc-roots ]
269 [ data-values>> load-data-regs ]
271 "no-gc" resolve-label ;
273 M: _loop-entry generate-insn drop %loop-entry ;
275 M: ##alien-global generate-insn
276 [ dst>> ] [ symbol>> ] [ library>> ] tri
280 GENERIC: next-fastcall-param ( rep -- )
282 : ?dummy-stack-params ( rep -- )
283 dummy-stack-params? [ rep-size cell align stack-params +@ ] [ drop ] if ;
285 : ?dummy-int-params ( rep -- )
286 dummy-int-params? [ rep-size cell /i 1 max int-regs +@ ] [ drop ] if ;
288 : ?dummy-fp-params ( rep -- )
289 drop dummy-fp-params? [ float-regs inc ] when ;
291 M: int-rep next-fastcall-param
292 int-regs inc [ ?dummy-stack-params ] [ ?dummy-fp-params ] bi ;
294 M: float-rep next-fastcall-param
295 float-regs inc [ ?dummy-stack-params ] [ ?dummy-int-params ] bi ;
297 M: double-rep next-fastcall-param
298 float-regs inc [ ?dummy-stack-params ] [ ?dummy-int-params ] bi ;
300 GENERIC: reg-class-full? ( reg-class -- ? )
302 M: stack-params reg-class-full? drop t ;
304 M: reg-class reg-class-full?
305 [ get ] [ param-regs length ] bi >= ;
307 : alloc-stack-param ( rep -- n reg-class rep )
309 [ rep-size cell align stack-params +@ ] dip
312 : alloc-fastcall-param ( rep -- n reg-class rep )
313 [ [ reg-class-of get ] [ reg-class-of ] [ next-fastcall-param ] tri ] keep ;
315 : alloc-parameter ( parameter -- reg rep )
316 c-type-rep dup reg-class-of reg-class-full?
317 [ alloc-stack-param ] [ alloc-fastcall-param ] if
320 : (flatten-int-type) ( type -- seq )
321 stack-size cell align cell /i void* c-type <repetition> ;
323 GENERIC: flatten-value-type ( type -- types )
325 M: object flatten-value-type 1array ;
326 M: struct-c-type flatten-value-type (flatten-int-type) ;
327 M: long-long-type flatten-value-type (flatten-int-type) ;
328 M: c-type-word flatten-value-type c-type flatten-value-type ;
330 : flatten-value-types ( params -- params )
331 #! Convert value type structs to consecutive void*s.
335 [ parameter-align cell /i void* c-type <repetition> % ] keep
336 [ stack-size cell align + ] keep
341 : each-parameter ( parameters quot -- )
342 [ [ parameter-offsets nip ] keep ] dip 2each ; inline
344 : reset-fastcall-counts ( -- )
345 { int-regs float-regs stack-params } [ 0 swap set ] each ;
347 : with-param-regs ( quot -- )
348 #! In quot you can call alloc-parameter
349 [ reset-fastcall-counts call ] with-scope ; inline
351 : move-parameters ( node word -- )
352 #! Moves values from C stack to registers (if word is
353 #! %load-param-reg) and registers to C stack (if word is
355 [ alien-parameters flatten-value-types ]
356 [ '[ alloc-parameter _ execute ] ]
357 bi* each-parameter ; inline
359 : reverse-each-parameter ( parameters quot -- )
360 [ [ parameter-offsets nip ] keep ] dip 2reverse-each ; inline
362 : prepare-unbox-parameters ( parameters -- offsets types indices )
363 [ parameter-offsets nip ] [ ] [ length iota <reversed> ] tri ;
365 : unbox-parameters ( offset node -- )
367 '[ prepare-unbox-parameters [ %pop-stack [ _ + ] dip unbox-parameter ] 3each ]
368 [ length neg %inc-d ]
371 : prepare-box-struct ( node -- offset )
372 #! Return offset on C stack where to store unboxed
373 #! parameters. If the C function is returning a structure,
374 #! the first parameter is an implicit target area pointer,
375 #! so we need to use a different offset.
376 return>> large-struct?
377 [ %prepare-box-struct cell ] [ 0 ] if ;
379 : objects>registers ( params -- )
380 #! Generate code for unboxing a list of C types, then
381 #! generate code for moving these parameters to registers on
382 #! architectures where parameters are passed in registers.
384 [ prepare-box-struct ] keep
385 [ unbox-parameters ] keep
386 \ %load-param-reg move-parameters
389 : box-return* ( node -- )
390 return>> [ ] [ box-return %push-stack ] if-void ;
392 GENERIC# dlsym-valid? 1 ( symbols dll -- ? )
394 M: string dlsym-valid? dlsym ;
396 M: array dlsym-valid? '[ _ dlsym ] any? ;
398 : check-dlsym ( symbols dll -- )
401 [ drop ] [ compiling-word get no-such-symbol ] if
403 dll-path compiling-word get no-such-library drop
406 : stdcall-mangle ( params -- symbols )
407 [ function>> ] [ parameters>> parameter-offsets drop number>string ] bi
408 [ drop ] [ "@" glue ] [ "@" glue "_" prepend ] 2tri
411 : alien-invoke-dlsym ( params -- symbols dll )
412 [ dup abi>> "stdcall" = [ stdcall-mangle ] [ function>> ] if ]
413 [ library>> load-library ]
414 bi 2dup check-dlsym ;
416 M: ##alien-invoke generate-insn
419 dup objects>registers
422 dup alien-invoke-dlsym %alien-invoke
427 M: ##alien-assembly generate-insn
430 dup objects>registers
433 dup quot>> call( -- )
438 M: ##alien-indirect generate-insn
440 ! Save alien at top of stack to temporary storage
441 %prepare-alien-indirect
443 dup objects>registers
445 ! Call alien in temporary storage
452 : box-parameters ( params -- )
453 alien-parameters [ box-parameter %push-context-stack ] each-parameter ;
455 : registers>objects ( node -- )
456 ! Generate code for boxing input parameters in a callback.
458 dup \ %save-param-reg move-parameters
463 TUPLE: callback-context ;
465 : current-callback ( -- id ) 2 special-object ;
467 : wait-to-return ( token -- )
468 dup current-callback eq? [
471 yield-hook get call( -- ) wait-to-return
474 : do-callback ( quot token -- )
476 [ 2 set-special-object call ] keep
477 wait-to-return ; inline
479 : callback-return-quot ( ctype -- quot )
481 { [ dup void? ] [ drop [ ] ] }
482 { [ dup large-struct? ] [ heap-size '[ _ memcpy ] ] }
483 [ c-type c-type-unboxer-quot ]
486 : callback-prep-quot ( params -- quot )
487 parameters>> [ c-type c-type-boxer-quot ] map spread>quot ;
489 : wrap-callback-quot ( params -- quot )
491 [ callback-prep-quot ]
493 [ callback-return-quot ] tri 3append ,
494 [ callback-context new do-callback ] %
497 M: ##alien-callback generate-insn
499 [ registers>objects ]
500 [ wrap-callback-quot %alien-callback ]
501 [ alien-return [ %unnest-stacks ] [ %callback-value ] if-void ]