1 ! Copyright (C) 2007, 2009 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: bootstrap.image.private compiler.constants
4 compiler.units cpu.x86.assembler cpu.x86.assembler.operands
5 kernel kernel.private layouts locals.backend make math
6 math.private namespaces sequences slots.private vocabs ;
13 temp0 0 MOV rc-absolute-cell rt-immediate jit-rel
14 ! Bump profiling counter
15 temp0 profile-count-offset [+] 1 tag-fixnum ADD
17 temp0 temp0 word-code-offset [+] MOV
19 temp0 compiled-header-size ADD
22 ] jit-profiling jit-define
26 temp0 0 MOV rc-absolute-cell rt-this jit-rel
27 ! save stack frame size
32 stack-reg stack-frame-size 3 bootstrap-cells - SUB
33 ] jit-prolog jit-define
37 temp0 0 MOV rc-absolute-cell rt-immediate jit-rel
38 ! increment datastack pointer
39 ds-reg bootstrap-cell ADD
40 ! store literal on datastack
42 ] jit-push-immediate jit-define
45 temp3 0 MOV rc-absolute-cell rt-here jit-rel
46 0 JMP rc-relative rt-xt-pic-tail jit-rel
47 ] jit-word-jump jit-define
50 0 CALL rc-relative rt-xt-pic jit-rel
51 ] jit-word-call jit-define
54 0 JMP rc-relative rt-xt jit-rel
55 ] jit-word-special jit-define
61 ds-reg bootstrap-cell SUB
62 ! compare boolean with f
63 temp0 \ f type-number CMP
64 ! jump to true branch if not equal
65 0 JNE rc-relative rt-xt jit-rel
66 ! jump to false branch if equal
67 0 JMP rc-relative rt-xt jit-rel
71 rs-reg bootstrap-cell ADD
73 ds-reg bootstrap-cell SUB
77 rs-reg 2 bootstrap-cells ADD
79 temp1 ds-reg -1 bootstrap-cells [+] MOV
80 ds-reg 2 bootstrap-cells SUB
82 rs-reg -1 bootstrap-cells [+] temp1 MOV ;
85 rs-reg 3 bootstrap-cells ADD
87 temp1 ds-reg -1 bootstrap-cells [+] MOV
88 temp2 ds-reg -2 bootstrap-cells [+] MOV
89 ds-reg 3 bootstrap-cells SUB
91 rs-reg -1 bootstrap-cells [+] temp1 MOV
92 rs-reg -2 bootstrap-cells [+] temp2 MOV ;
95 ds-reg bootstrap-cell ADD
97 rs-reg bootstrap-cell SUB
101 ds-reg 2 bootstrap-cells ADD
103 temp1 rs-reg -1 bootstrap-cells [+] MOV
104 rs-reg 2 bootstrap-cells SUB
106 ds-reg -1 bootstrap-cells [+] temp1 MOV ;
109 ds-reg 3 bootstrap-cells ADD
111 temp1 rs-reg -1 bootstrap-cells [+] MOV
112 temp2 rs-reg -2 bootstrap-cells [+] MOV
113 rs-reg 3 bootstrap-cells SUB
115 ds-reg -1 bootstrap-cells [+] temp1 MOV
116 ds-reg -2 bootstrap-cells [+] temp2 MOV ;
120 0 CALL rc-relative rt-xt jit-rel
126 0 CALL rc-relative rt-xt jit-rel
128 ] jit-2dip jit-define
132 0 CALL rc-relative rt-xt jit-rel
134 ] jit-3dip jit-define
136 : prepare-(execute) ( -- operand )
140 ds-reg bootstrap-cell SUB
142 temp0 word-xt-offset [+] ;
144 [ prepare-(execute) JMP ] jit-execute-jump jit-define
146 [ prepare-(execute) CALL ] jit-execute-call jit-define
150 stack-reg stack-frame-size bootstrap-cell - ADD
151 ] jit-epilog jit-define
153 [ 0 RET ] jit-return jit-define
155 ! ! ! Polymorphic inline caches
157 ! The PIC stubs are not permitted to touch temp3.
159 ! Load a value from a stack position
161 temp1 ds-reg HEX: ffffffff [+] MOV rc-absolute rt-untagged jit-rel
162 ] pic-load jit-define
166 temp1 tag-mask get AND
167 temp1 tag-bits get SHL ;
169 [ load-tag ] pic-tag jit-define
171 ! The 'make' trick lets us compute the jump distance for the
172 ! conditional branches there
178 temp1 tuple type-number tag-fixnum CMP
179 [ temp1 temp0 tuple type-number neg bootstrap-cell + [+] MOV ] { } make
180 [ length JNE ] [ % ] bi
181 ] pic-tuple jit-define
184 temp1 HEX: ffffffff CMP rc-absolute rt-immediate jit-rel
185 ] pic-check-tag jit-define
188 temp2 HEX: ffffffff MOV rc-absolute-cell rt-immediate jit-rel
190 ] pic-check-tuple jit-define
192 [ 0 JE rc-relative rt-xt jit-rel ] pic-hit jit-define
194 ! ! ! Megamorphic caches
198 temp0 0 MOV rc-absolute-cell rt-immediate jit-rel
199 ! key = hashcode(class)
201 bootstrap-cell 4 = [ temp2 1 SHR ] when
202 ! key &= cache.length - 1
203 temp2 mega-cache-size get 1 - bootstrap-cell * AND
204 ! cache += array-start-offset
205 temp0 array-start-offset ADD
208 ! if(get(cache) == class)
210 bootstrap-cell 4 = 14 22 ? JNE ! Yuck!
211 ! megamorphic_cache_hits++
212 temp1 0 MOV rc-absolute-cell rt-megamorphic-cache-hits jit-rel
214 ! goto get(cache + bootstrap-cell)
215 temp0 temp0 bootstrap-cell [+] MOV
216 temp0 word-xt-offset [+] JMP
217 ! fall-through on miss
218 ] mega-lookup jit-define
221 safe-reg 0 MOV rc-absolute-cell rt-xt jit-rel
223 ] callback-stub jit-define
227 ! Quotations and words
232 ds-reg bootstrap-cell SUB
234 arg2 0 MOV 0 jit-literal rc-absolute-cell rt-vm jit-rel
236 arg1 quot-xt-offset [+] JMP
237 ] \ (call) define-sub-primitive
244 temp0 tag-mask get AND
246 temp0 tag-bits get SHL
249 ] \ tag define-sub-primitive
254 ! adjust stack pointer
255 ds-reg bootstrap-cell SUB
258 ! turn slot number into offset
261 temp1 tag-bits get SHR
262 temp1 tag-bits get SHL
264 temp0 temp1 temp0 [+] MOV
267 ] \ slot define-sub-primitive
271 ds-reg bootstrap-cell SUB
272 ] \ drop define-sub-primitive
275 ds-reg 2 bootstrap-cells SUB
276 ] \ 2drop define-sub-primitive
279 ds-reg 3 bootstrap-cells SUB
280 ] \ 3drop define-sub-primitive
284 ds-reg bootstrap-cell ADD
286 ] \ dup define-sub-primitive
290 temp1 ds-reg bootstrap-cell neg [+] MOV
291 ds-reg 2 bootstrap-cells ADD
293 ds-reg bootstrap-cell neg [+] temp1 MOV
294 ] \ 2dup define-sub-primitive
298 temp1 ds-reg -1 bootstrap-cells [+] MOV
299 temp3 ds-reg -2 bootstrap-cells [+] MOV
300 ds-reg 3 bootstrap-cells ADD
302 ds-reg -1 bootstrap-cells [+] temp1 MOV
303 ds-reg -2 bootstrap-cells [+] temp3 MOV
304 ] \ 3dup define-sub-primitive
308 ds-reg bootstrap-cell SUB
310 ] \ nip define-sub-primitive
314 ds-reg 2 bootstrap-cells SUB
316 ] \ 2nip define-sub-primitive
319 temp0 ds-reg -1 bootstrap-cells [+] MOV
320 ds-reg bootstrap-cell ADD
322 ] \ over define-sub-primitive
325 temp0 ds-reg -2 bootstrap-cells [+] MOV
326 ds-reg bootstrap-cell ADD
328 ] \ pick define-sub-primitive
332 temp1 ds-reg -1 bootstrap-cells [+] MOV
334 ds-reg bootstrap-cell ADD
336 ] \ dupd define-sub-primitive
340 temp1 ds-reg -1 bootstrap-cells [+] MOV
341 ds-reg bootstrap-cell ADD
343 ds-reg -1 bootstrap-cells [+] temp1 MOV
344 ds-reg -2 bootstrap-cells [+] temp0 MOV
345 ] \ tuck define-sub-primitive
349 temp1 ds-reg bootstrap-cell neg [+] MOV
350 ds-reg bootstrap-cell neg [+] temp0 MOV
352 ] \ swap define-sub-primitive
355 temp0 ds-reg -1 bootstrap-cells [+] MOV
356 temp1 ds-reg -2 bootstrap-cells [+] MOV
357 ds-reg -2 bootstrap-cells [+] temp0 MOV
358 ds-reg -1 bootstrap-cells [+] temp1 MOV
359 ] \ swapd define-sub-primitive
363 temp1 ds-reg -1 bootstrap-cells [+] MOV
364 temp3 ds-reg -2 bootstrap-cells [+] MOV
365 ds-reg -2 bootstrap-cells [+] temp1 MOV
366 ds-reg -1 bootstrap-cells [+] temp0 MOV
368 ] \ rot define-sub-primitive
372 temp1 ds-reg -1 bootstrap-cells [+] MOV
373 temp3 ds-reg -2 bootstrap-cells [+] MOV
374 ds-reg -2 bootstrap-cells [+] temp0 MOV
375 ds-reg -1 bootstrap-cells [+] temp3 MOV
377 ] \ -rot define-sub-primitive
379 [ jit->r ] \ load-local define-sub-primitive
382 : jit-compare ( insn -- )
385 temp3 0 MOV rc-absolute-cell rt-immediate jit-rel
387 temp1 \ f type-number MOV
390 ! adjust stack pointer
391 ds-reg bootstrap-cell SUB
392 ! compare with second value
395 [ temp1 temp3 ] dip execute( dst src -- )
397 ds-reg [] temp1 MOV ;
399 : define-jit-compare ( insn word -- )
400 [ [ jit-compare ] curry ] dip define-sub-primitive ;
402 \ CMOVE \ eq? define-jit-compare
403 \ CMOVGE \ fixnum>= define-jit-compare
404 \ CMOVLE \ fixnum<= define-jit-compare
405 \ CMOVG \ fixnum> define-jit-compare
406 \ CMOVL \ fixnum< define-jit-compare
409 : jit-math ( insn -- )
413 ds-reg bootstrap-cell SUB
415 [ ds-reg [] temp0 ] dip execute( dst src -- ) ;
417 [ \ ADD jit-math ] \ fixnum+fast define-sub-primitive
419 [ \ SUB jit-math ] \ fixnum-fast define-sub-primitive
425 ds-reg bootstrap-cell SUB
429 temp0 tag-bits get SAR
434 ] \ fixnum*fast define-sub-primitive
436 [ \ AND jit-math ] \ fixnum-bitand define-sub-primitive
438 [ \ OR jit-math ] \ fixnum-bitor define-sub-primitive
440 [ \ XOR jit-math ] \ fixnum-bitxor define-sub-primitive
446 ds-reg [] tag-mask get XOR
447 ] \ fixnum-bitnot define-sub-primitive
451 shift-arg ds-reg [] MOV
453 shift-arg tag-bits get SAR
454 ! adjust stack pointer
455 ds-reg bootstrap-cell SUB
460 ! compute positive shift value in temp1
463 ! compute negative shift value in temp3
465 temp3 tag-mask get bitnot AND
467 ! if shift count was negative, move temp0 to temp1
471 ] \ fixnum-shift-fast define-sub-primitive
473 : jit-fixnum-/mod ( -- )
474 ! load second parameter
476 ! load first parameter
477 div-arg ds-reg bootstrap-cell neg [+] MOV
481 mod-arg bootstrap-cell-bits 1 - SAR
487 ! adjust stack pointer
488 ds-reg bootstrap-cell SUB
490 ds-reg [] mod-arg MOV
491 ] \ fixnum-mod define-sub-primitive
495 ! adjust stack pointer
496 ds-reg bootstrap-cell SUB
498 div-arg tag-bits get SHL
500 ds-reg [] div-arg MOV
501 ] \ fixnum/i-fast define-sub-primitive
506 div-arg tag-bits get SHL
508 ds-reg [] mod-arg MOV
509 ds-reg bootstrap-cell neg [+] div-arg MOV
510 ] \ fixnum/mod-fast define-sub-primitive
514 ds-reg bootstrap-cell SUB
516 temp0 tag-mask get AND
517 temp0 \ f type-number MOV
518 temp1 1 tag-fixnum MOV
521 ] \ both-fixnums? define-sub-primitive
526 ! turn local number into offset
529 temp0 rs-reg temp0 [+] MOV
532 ] \ get-local define-sub-primitive
537 ! adjust stack pointer
538 ds-reg bootstrap-cell SUB
539 ! turn local number into offset
541 ! decrement retain stack pointer
543 ] \ drop-locals define-sub-primitive
545 [ "bootstrap.x86" forget-vocab ] with-compilation-unit