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
4 accessors kernel layouts assocs words summary arrays combinators
5 classes.algebra alien alien.private alien.c-types alien.strings
6 alien.arrays alien.complex alien.libraries sets libc
7 continuations.private fry cpu.architecture classes
8 classes.struct locals source-files.errors slots parser
9 generic.parser strings quotations
14 compiler.cfg.instructions
15 compiler.cfg.stack-frame
16 compiler.cfg.registers
18 compiler.codegen.fixup
20 FROM: namespaces => set ;
25 H{ } clone insn-counts set-global
27 GENERIC: generate-insn ( insn -- )
29 ! Mapping _label IDs to label instances
32 : generate ( mr -- code )
36 [ class insn-counts get inc-at ]
42 : lookup-label ( id -- label )
43 labels get [ drop <label> ] cache ;
46 M: ##no-tco generate-insn drop ;
48 M: _dispatch-label generate-insn
51 rc-absolute-cell label-fixup ;
53 M: _prologue generate-insn
54 stack-frame>> [ stack-frame set ] [ total-size>> %prologue ] bi ;
56 M: _epilogue generate-insn
57 stack-frame>> total-size>> %epilogue ;
59 M: _spill-area-size generate-insn drop ;
61 ! Some meta-programming to generate simple code generators, where
62 ! the instruction is unpacked and then a %word is called
65 : insn-slot-quot ( spec -- quot )
66 name>> [ reader-word ] [ "label" = ] bi
67 [ \ lookup-label [ ] 2sequence ] [ [ ] 1sequence ] if ;
69 : codegen-method-body ( class word -- quot )
71 "insn-slots" word-prop
72 [ insn-slot-quot ] map cleave>quot
76 scan-word [ \ generate-insn create-method-in ] keep scan-word
77 codegen-method-body define ;
80 CODEGEN: ##load-immediate %load-immediate
81 CODEGEN: ##load-reference %load-reference
82 CODEGEN: ##load-constant %load-reference
84 CODEGEN: ##replace %replace
85 CODEGEN: ##inc-d %inc-d
86 CODEGEN: ##inc-r %inc-r
89 CODEGEN: ##return %return
91 CODEGEN: ##slot-imm %slot-imm
92 CODEGEN: ##set-slot %set-slot
93 CODEGEN: ##set-slot-imm %set-slot-imm
94 CODEGEN: ##string-nth %string-nth
95 CODEGEN: ##set-string-nth-fast %set-string-nth-fast
97 CODEGEN: ##add-imm %add-imm
99 CODEGEN: ##sub-imm %sub-imm
101 CODEGEN: ##mul-imm %mul-imm
103 CODEGEN: ##and-imm %and-imm
105 CODEGEN: ##or-imm %or-imm
107 CODEGEN: ##xor-imm %xor-imm
109 CODEGEN: ##shl-imm %shl-imm
111 CODEGEN: ##shr-imm %shr-imm
113 CODEGEN: ##sar-imm %sar-imm
118 CODEGEN: ##log2 %log2
119 CODEGEN: ##copy %copy
120 CODEGEN: ##add-float %add-float
121 CODEGEN: ##sub-float %sub-float
122 CODEGEN: ##mul-float %mul-float
123 CODEGEN: ##div-float %div-float
124 CODEGEN: ##min-float %min-float
125 CODEGEN: ##max-float %max-float
126 CODEGEN: ##sqrt %sqrt
127 CODEGEN: ##unary-float-function %unary-float-function
128 CODEGEN: ##binary-float-function %binary-float-function
129 CODEGEN: ##single>double-float %single>double-float
130 CODEGEN: ##double>single-float %double>single-float
131 CODEGEN: ##integer>float %integer>float
132 CODEGEN: ##float>integer %float>integer
133 CODEGEN: ##zero-vector %zero-vector
134 CODEGEN: ##fill-vector %fill-vector
135 CODEGEN: ##gather-vector-2 %gather-vector-2
136 CODEGEN: ##gather-vector-4 %gather-vector-4
137 CODEGEN: ##shuffle-vector-imm %shuffle-vector-imm
138 CODEGEN: ##shuffle-vector %shuffle-vector
139 CODEGEN: ##tail>head-vector %tail>head-vector
140 CODEGEN: ##merge-vector-head %merge-vector-head
141 CODEGEN: ##merge-vector-tail %merge-vector-tail
142 CODEGEN: ##signed-pack-vector %signed-pack-vector
143 CODEGEN: ##unsigned-pack-vector %unsigned-pack-vector
144 CODEGEN: ##unpack-vector-head %unpack-vector-head
145 CODEGEN: ##unpack-vector-tail %unpack-vector-tail
146 CODEGEN: ##integer>float-vector %integer>float-vector
147 CODEGEN: ##float>integer-vector %float>integer-vector
148 CODEGEN: ##compare-vector %compare-vector
149 CODEGEN: ##test-vector %test-vector
150 CODEGEN: ##add-vector %add-vector
151 CODEGEN: ##saturated-add-vector %saturated-add-vector
152 CODEGEN: ##add-sub-vector %add-sub-vector
153 CODEGEN: ##sub-vector %sub-vector
154 CODEGEN: ##saturated-sub-vector %saturated-sub-vector
155 CODEGEN: ##mul-vector %mul-vector
156 CODEGEN: ##mul-high-vector %mul-high-vector
157 CODEGEN: ##mul-horizontal-add-vector %mul-horizontal-add-vector
158 CODEGEN: ##saturated-mul-vector %saturated-mul-vector
159 CODEGEN: ##div-vector %div-vector
160 CODEGEN: ##min-vector %min-vector
161 CODEGEN: ##max-vector %max-vector
162 CODEGEN: ##avg-vector %avg-vector
163 CODEGEN: ##dot-vector %dot-vector
164 CODEGEN: ##sad-vector %sad-vector
165 CODEGEN: ##sqrt-vector %sqrt-vector
166 CODEGEN: ##horizontal-add-vector %horizontal-add-vector
167 CODEGEN: ##horizontal-sub-vector %horizontal-sub-vector
168 CODEGEN: ##horizontal-shl-vector-imm %horizontal-shl-vector-imm
169 CODEGEN: ##horizontal-shr-vector-imm %horizontal-shr-vector-imm
170 CODEGEN: ##abs-vector %abs-vector
171 CODEGEN: ##and-vector %and-vector
172 CODEGEN: ##andn-vector %andn-vector
173 CODEGEN: ##or-vector %or-vector
174 CODEGEN: ##xor-vector %xor-vector
175 CODEGEN: ##not-vector %not-vector
176 CODEGEN: ##shl-vector-imm %shl-vector-imm
177 CODEGEN: ##shr-vector-imm %shr-vector-imm
178 CODEGEN: ##shl-vector %shl-vector
179 CODEGEN: ##shr-vector %shr-vector
180 CODEGEN: ##integer>scalar %integer>scalar
181 CODEGEN: ##scalar>integer %scalar>integer
182 CODEGEN: ##vector>scalar %vector>scalar
183 CODEGEN: ##scalar>vector %scalar>vector
184 CODEGEN: ##box-alien %box-alien
185 CODEGEN: ##box-displaced-alien %box-displaced-alien
186 CODEGEN: ##unbox-alien %unbox-alien
187 CODEGEN: ##unbox-any-c-ptr %unbox-any-c-ptr
188 CODEGEN: ##alien-unsigned-1 %alien-unsigned-1
189 CODEGEN: ##alien-unsigned-2 %alien-unsigned-2
190 CODEGEN: ##alien-unsigned-4 %alien-unsigned-4
191 CODEGEN: ##alien-signed-1 %alien-signed-1
192 CODEGEN: ##alien-signed-2 %alien-signed-2
193 CODEGEN: ##alien-signed-4 %alien-signed-4
194 CODEGEN: ##alien-cell %alien-cell
195 CODEGEN: ##alien-float %alien-float
196 CODEGEN: ##alien-double %alien-double
197 CODEGEN: ##alien-vector %alien-vector
198 CODEGEN: ##set-alien-integer-1 %set-alien-integer-1
199 CODEGEN: ##set-alien-integer-2 %set-alien-integer-2
200 CODEGEN: ##set-alien-integer-4 %set-alien-integer-4
201 CODEGEN: ##set-alien-cell %set-alien-cell
202 CODEGEN: ##set-alien-float %set-alien-float
203 CODEGEN: ##set-alien-double %set-alien-double
204 CODEGEN: ##set-alien-vector %set-alien-vector
205 CODEGEN: ##allot %allot
206 CODEGEN: ##write-barrier %write-barrier
207 CODEGEN: ##write-barrier-imm %write-barrier-imm
208 CODEGEN: ##compare %compare
209 CODEGEN: ##compare-imm %compare-imm
210 CODEGEN: ##compare-float-ordered %compare-float-ordered
211 CODEGEN: ##compare-float-unordered %compare-float-unordered
212 CODEGEN: ##save-context %save-context
213 CODEGEN: ##vm-field-ptr %vm-field-ptr
214 CODEGEN: ##vm-field %vm-field
216 CODEGEN: _fixnum-add %fixnum-add
217 CODEGEN: _fixnum-sub %fixnum-sub
218 CODEGEN: _fixnum-mul %fixnum-mul
219 CODEGEN: _label resolve-label
220 CODEGEN: _branch %jump-label
221 CODEGEN: _compare-branch %compare-branch
222 CODEGEN: _compare-imm-branch %compare-imm-branch
223 CODEGEN: _compare-float-ordered-branch %compare-float-ordered-branch
224 CODEGEN: _compare-float-unordered-branch %compare-float-unordered-branch
225 CODEGEN: _test-vector-branch %test-vector-branch
226 CODEGEN: _dispatch %dispatch
227 CODEGEN: _spill %spill
228 CODEGEN: _reload %reload
231 : wipe-locs ( locs temp -- )
234 [ 0 %load-immediate ]
235 [ swap [ %replace ] with each ] bi
238 GENERIC# save-gc-root 1 ( gc-root operand temp -- )
240 M:: spill-slot save-gc-root ( gc-root operand temp -- )
241 temp int-rep operand %reload
242 gc-root temp %save-gc-root ;
244 M: object save-gc-root drop %save-gc-root ;
246 : save-gc-roots ( gc-roots temp -- ) '[ _ save-gc-root ] assoc-each ;
248 : save-data-regs ( data-regs -- ) [ first3 %spill ] each ;
250 GENERIC# load-gc-root 1 ( gc-root operand temp -- )
252 M:: spill-slot load-gc-root ( gc-root operand temp -- )
253 gc-root temp %load-gc-root
254 temp int-rep operand %spill ;
256 M: object load-gc-root drop %load-gc-root ;
258 : load-gc-roots ( gc-roots temp -- ) '[ _ load-gc-root ] assoc-each ;
260 : load-data-regs ( data-regs -- ) [ first3 %reload ] each ;
262 M: ##gc generate-insn
265 [ [ "no-gc" get ] dip [ size>> ] [ temp1>> ] [ temp2>> ] tri %check-nursery ]
266 [ [ uninitialized-locs>> ] [ temp1>> ] bi wipe-locs ]
267 [ data-values>> save-data-regs ]
268 [ [ tagged-values>> ] [ temp1>> ] bi save-gc-roots ]
269 [ [ temp1>> ] [ temp2>> ] bi %save-context ]
270 [ [ tagged-values>> length ] [ temp1>> ] bi %call-gc ]
271 [ [ tagged-values>> ] [ temp1>> ] bi load-gc-roots ]
272 [ data-values>> load-data-regs ]
274 "no-gc" resolve-label ;
276 M: _loop-entry generate-insn drop %loop-entry ;
278 M: ##alien-global generate-insn
279 [ dst>> ] [ symbol>> ] [ library>> ] tri
283 GENERIC: next-fastcall-param ( rep -- )
285 : ?dummy-stack-params ( rep -- )
286 dummy-stack-params? [ rep-size cell align stack-params +@ ] [ drop ] if ;
288 : ?dummy-int-params ( rep -- )
289 dummy-int-params? [ rep-size cell /i 1 max int-regs +@ ] [ drop ] if ;
291 : ?dummy-fp-params ( rep -- )
292 drop dummy-fp-params? [ float-regs inc ] when ;
294 M: int-rep next-fastcall-param
295 int-regs inc [ ?dummy-stack-params ] [ ?dummy-fp-params ] bi ;
297 M: float-rep next-fastcall-param
298 float-regs inc [ ?dummy-stack-params ] [ ?dummy-int-params ] bi ;
300 M: double-rep next-fastcall-param
301 float-regs inc [ ?dummy-stack-params ] [ ?dummy-int-params ] bi ;
303 GENERIC: reg-class-full? ( reg-class -- ? )
305 M: stack-params reg-class-full? drop t ;
307 M: reg-class reg-class-full?
308 [ get ] [ param-regs length ] bi >= ;
310 : alloc-stack-param ( rep -- n reg-class rep )
312 [ rep-size cell align stack-params +@ ] dip
315 : alloc-fastcall-param ( rep -- n reg-class rep )
316 [ [ reg-class-of get ] [ reg-class-of ] [ next-fastcall-param ] tri ] keep ;
318 : alloc-parameter ( parameter -- reg rep )
319 c-type-rep dup reg-class-of reg-class-full?
320 [ alloc-stack-param ] [ alloc-fastcall-param ] if
323 : (flatten-int-type) ( type -- seq )
324 stack-size cell align cell /i void* c-type <repetition> ;
326 GENERIC: flatten-value-type ( type -- types )
328 M: object flatten-value-type 1array ;
329 M: struct-c-type flatten-value-type (flatten-int-type) ;
330 M: long-long-type flatten-value-type (flatten-int-type) ;
331 M: c-type-name flatten-value-type c-type flatten-value-type ;
333 : flatten-value-types ( params -- params )
334 #! Convert value type structs to consecutive void*s.
338 [ parameter-align cell /i void* c-type <repetition> % ] keep
339 [ stack-size cell align + ] keep
344 : each-parameter ( parameters quot -- )
345 [ [ parameter-offsets nip ] keep ] dip 2each ; inline
347 : reset-fastcall-counts ( -- )
348 { int-regs float-regs stack-params } [ 0 swap set ] each ;
350 : with-param-regs ( quot -- )
351 #! In quot you can call alloc-parameter
352 [ reset-fastcall-counts call ] with-scope ; inline
354 : move-parameters ( node word -- )
355 #! Moves values from C stack to registers (if word is
356 #! %load-param-reg) and registers to C stack (if word is
358 [ alien-parameters flatten-value-types ]
359 [ '[ alloc-parameter _ execute ] ]
360 bi* each-parameter ; inline
362 : reverse-each-parameter ( parameters quot -- )
363 [ [ parameter-offsets nip ] keep ] dip 2reverse-each ; inline
365 : prepare-unbox-parameters ( parameters -- offsets types indices )
366 [ parameter-offsets nip ] [ ] [ length iota <reversed> ] tri ;
368 : unbox-parameters ( offset node -- )
370 '[ prepare-unbox-parameters [ %pop-stack [ _ + ] dip unbox-parameter ] 3each ]
371 [ length neg %inc-d ]
374 : prepare-box-struct ( node -- offset )
375 #! Return offset on C stack where to store unboxed
376 #! parameters. If the C function is returning a structure,
377 #! the first parameter is an implicit target area pointer,
378 #! so we need to use a different offset.
379 return>> large-struct?
380 [ %prepare-box-struct cell ] [ 0 ] if ;
382 : objects>registers ( params -- )
383 #! Generate code for unboxing a list of C types, then
384 #! generate code for moving these parameters to registers on
385 #! architectures where parameters are passed in registers.
387 [ prepare-box-struct ] keep
388 [ unbox-parameters ] keep
389 \ %load-param-reg move-parameters
392 : box-return* ( node -- )
393 return>> [ ] [ box-return %push-stack ] if-void ;
395 GENERIC# dlsym-valid? 1 ( symbols dll -- ? )
397 M: string dlsym-valid? dlsym ;
399 M: array dlsym-valid? '[ _ dlsym ] any? ;
401 : check-dlsym ( symbols dll -- )
404 [ drop ] [ compiling-word get no-such-symbol ] if
406 dll-path compiling-word get no-such-library drop
409 : stdcall-mangle ( params -- symbols )
410 [ function>> ] [ parameters>> parameter-offsets drop number>string ] bi
411 [ drop ] [ "@" glue ] [ "@" glue "_" prepend ] 2tri
414 : alien-invoke-dlsym ( params -- symbols dll )
415 [ dup abi>> stdcall = [ stdcall-mangle ] [ function>> ] if ]
416 [ library>> load-library ]
417 bi 2dup check-dlsym ;
419 M: ##alien-invoke generate-insn
422 dup objects>registers
425 dup alien-invoke-dlsym %alien-invoke
430 M: ##alien-assembly generate-insn
433 dup objects>registers
436 dup quot>> call( -- )
441 M: ##alien-indirect generate-insn
443 ! Save alien at top of stack to temporary storage
444 %prepare-alien-indirect
446 dup objects>registers
448 ! Call alien in temporary storage
455 : box-parameters ( params -- )
456 alien-parameters [ box-parameter %push-context-stack ] each-parameter ;
458 : registers>objects ( node -- )
459 ! Generate code for boxing input parameters in a callback.
461 dup \ %save-param-reg move-parameters
466 : callback-return-quot ( ctype -- quot )
468 { [ dup void? ] [ drop [ ] ] }
469 { [ dup large-struct? ] [ heap-size '[ _ memcpy ] ] }
470 [ c-type c-type-unboxer-quot ]
473 : callback-prep-quot ( params -- quot )
474 parameters>> [ c-type c-type-boxer-quot ] map spread>quot ;
476 : wrap-callback-quot ( params -- quot )
477 [ callback-prep-quot ] [ quot>> ] [ callback-return-quot ] tri 3append
482 M: ##alien-callback generate-insn
484 [ registers>objects ]
485 [ wrap-callback-quot %alien-callback ]
486 [ alien-return [ %end-callback ] [ %end-callback-value ] if-void ] tri ;