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-literal 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-literal jit-rel
27 ! increment datastack pointer
28 ds-reg bootstrap-cell ADD
29 ! store literal on datastack
34 temp3 0 MOV rc-absolute-cell rt-here jit-rel
35 0 JMP rc-relative rt-xt-pic-tail jit-rel
36 ] jit-word-jump jit-define
39 0 CALL rc-relative rt-xt-pic jit-rel
40 ] jit-word-call jit-define
46 ds-reg bootstrap-cell SUB
47 ! compare boolean with f
48 temp0 \ f type-number CMP
49 ! jump to true branch if not equal
50 0 JNE rc-relative rt-xt jit-rel
51 ! jump to false branch if equal
52 0 JMP rc-relative rt-xt jit-rel
56 rs-reg bootstrap-cell ADD
58 ds-reg bootstrap-cell SUB
62 rs-reg 2 bootstrap-cells ADD
64 temp1 ds-reg -1 bootstrap-cells [+] MOV
65 ds-reg 2 bootstrap-cells SUB
67 rs-reg -1 bootstrap-cells [+] temp1 MOV ;
70 rs-reg 3 bootstrap-cells ADD
72 temp1 ds-reg -1 bootstrap-cells [+] MOV
73 temp2 ds-reg -2 bootstrap-cells [+] MOV
74 ds-reg 3 bootstrap-cells SUB
76 rs-reg -1 bootstrap-cells [+] temp1 MOV
77 rs-reg -2 bootstrap-cells [+] temp2 MOV ;
80 ds-reg bootstrap-cell ADD
82 rs-reg bootstrap-cell SUB
86 ds-reg 2 bootstrap-cells ADD
88 temp1 rs-reg -1 bootstrap-cells [+] MOV
89 rs-reg 2 bootstrap-cells SUB
91 ds-reg -1 bootstrap-cells [+] temp1 MOV ;
94 ds-reg 3 bootstrap-cells ADD
96 temp1 rs-reg -1 bootstrap-cells [+] MOV
97 temp2 rs-reg -2 bootstrap-cells [+] MOV
98 rs-reg 3 bootstrap-cells SUB
100 ds-reg -1 bootstrap-cells [+] temp1 MOV
101 ds-reg -2 bootstrap-cells [+] temp2 MOV ;
105 0 CALL rc-relative rt-xt jit-rel
111 0 CALL rc-relative rt-xt jit-rel
113 ] jit-2dip jit-define
117 0 CALL rc-relative rt-xt jit-rel
119 ] jit-3dip jit-define
125 ds-reg bootstrap-cell SUB
127 [ temp0 word-xt-offset [+] CALL ]
128 [ temp0 word-xt-offset [+] JMP ]
129 \ (execute) define-sub-primitive*
133 ds-reg bootstrap-cell SUB
134 temp0 word-xt-offset [+] JMP
135 ] jit-execute jit-define
138 stack-reg stack-frame-size bootstrap-cell - ADD
139 ] jit-epilog jit-define
141 [ 0 RET ] jit-return jit-define
143 ! ! ! Polymorphic inline caches
145 ! The PIC stubs are not permitted to touch temp3.
147 ! Load a value from a stack position
149 temp1 ds-reg HEX: ffffffff [+] MOV rc-absolute rt-untagged jit-rel
150 ] pic-load jit-define
154 temp1 tag-mask get AND
155 temp1 tag-bits get SHL ;
157 [ load-tag ] pic-tag jit-define
159 ! The 'make' trick lets us compute the jump distance for the
160 ! conditional branches there
166 temp1 tuple type-number tag-fixnum CMP
168 [ temp1 temp0 tuple type-number neg bootstrap-cell + [+] MOV ]
170 ] pic-tuple jit-define
173 temp1 HEX: ffffffff CMP rc-absolute rt-literal jit-rel
174 ] pic-check-tag jit-define
177 temp2 HEX: ffffffff MOV rc-absolute-cell rt-literal jit-rel
179 ] pic-check-tuple jit-define
181 [ 0 JE rc-relative rt-xt jit-rel ] pic-hit jit-define
183 ! ! ! Megamorphic caches
187 temp0 0 MOV rc-absolute-cell rt-literal jit-rel
188 ! key = hashcode(class)
190 bootstrap-cell 4 = [ temp2 1 SHR ] when
191 ! key &= cache.length - 1
192 temp2 mega-cache-size get 1 - bootstrap-cell * AND
193 ! cache += array-start-offset
194 temp0 array-start-offset ADD
197 ! if(get(cache) == class)
199 bootstrap-cell 4 = 14 22 ? JNE ! Yuck!
200 ! megamorphic_cache_hits++
201 temp1 0 MOV rc-absolute-cell rt-megamorphic-cache-hits jit-rel
203 ! goto get(cache + bootstrap-cell)
204 temp0 temp0 bootstrap-cell [+] MOV
205 temp0 word-xt-offset [+] JMP
206 ! fall-through on miss
207 ] mega-lookup jit-define
210 safe-reg 0 MOV rc-absolute-cell rt-xt jit-rel
212 ] callback-stub jit-define
221 temp0 tag-mask get AND
223 temp0 tag-bits get SHL
226 ] \ tag define-sub-primitive
231 ! adjust stack pointer
232 ds-reg bootstrap-cell SUB
235 ! turn slot number into offset
238 temp1 tag-bits get SHR
239 temp1 tag-bits get SHL
241 temp0 temp1 temp0 [+] MOV
244 ] \ slot define-sub-primitive
248 ds-reg bootstrap-cell SUB
249 ] \ drop define-sub-primitive
252 ds-reg 2 bootstrap-cells SUB
253 ] \ 2drop define-sub-primitive
256 ds-reg 3 bootstrap-cells SUB
257 ] \ 3drop define-sub-primitive
261 ds-reg bootstrap-cell ADD
263 ] \ dup define-sub-primitive
267 temp1 ds-reg bootstrap-cell neg [+] MOV
268 ds-reg 2 bootstrap-cells ADD
270 ds-reg bootstrap-cell neg [+] temp1 MOV
271 ] \ 2dup define-sub-primitive
275 temp1 ds-reg -1 bootstrap-cells [+] MOV
276 temp3 ds-reg -2 bootstrap-cells [+] MOV
277 ds-reg 3 bootstrap-cells ADD
279 ds-reg -1 bootstrap-cells [+] temp1 MOV
280 ds-reg -2 bootstrap-cells [+] temp3 MOV
281 ] \ 3dup define-sub-primitive
285 ds-reg bootstrap-cell SUB
287 ] \ nip define-sub-primitive
291 ds-reg 2 bootstrap-cells SUB
293 ] \ 2nip define-sub-primitive
296 temp0 ds-reg -1 bootstrap-cells [+] MOV
297 ds-reg bootstrap-cell ADD
299 ] \ over define-sub-primitive
302 temp0 ds-reg -2 bootstrap-cells [+] MOV
303 ds-reg bootstrap-cell ADD
305 ] \ pick define-sub-primitive
309 temp1 ds-reg -1 bootstrap-cells [+] MOV
311 ds-reg bootstrap-cell ADD
313 ] \ dupd define-sub-primitive
317 temp1 ds-reg bootstrap-cell neg [+] MOV
318 ds-reg bootstrap-cell neg [+] temp0 MOV
320 ] \ swap define-sub-primitive
323 temp0 ds-reg -1 bootstrap-cells [+] MOV
324 temp1 ds-reg -2 bootstrap-cells [+] MOV
325 ds-reg -2 bootstrap-cells [+] temp0 MOV
326 ds-reg -1 bootstrap-cells [+] temp1 MOV
327 ] \ swapd define-sub-primitive
331 temp1 ds-reg -1 bootstrap-cells [+] MOV
332 temp3 ds-reg -2 bootstrap-cells [+] MOV
333 ds-reg -2 bootstrap-cells [+] temp1 MOV
334 ds-reg -1 bootstrap-cells [+] temp0 MOV
336 ] \ rot define-sub-primitive
340 temp1 ds-reg -1 bootstrap-cells [+] MOV
341 temp3 ds-reg -2 bootstrap-cells [+] MOV
342 ds-reg -2 bootstrap-cells [+] temp0 MOV
343 ds-reg -1 bootstrap-cells [+] temp3 MOV
345 ] \ -rot define-sub-primitive
347 [ jit->r ] \ load-local define-sub-primitive
350 : jit-compare ( insn -- )
353 temp3 0 MOV rc-absolute-cell rt-literal jit-rel
355 temp1 \ f type-number MOV
358 ! adjust stack pointer
359 ds-reg bootstrap-cell SUB
360 ! compare with second value
363 [ temp1 temp3 ] dip execute( dst src -- )
365 ds-reg [] temp1 MOV ;
367 : define-jit-compare ( insn word -- )
368 [ [ jit-compare ] curry ] dip define-sub-primitive ;
370 \ CMOVE \ eq? define-jit-compare
371 \ CMOVGE \ fixnum>= define-jit-compare
372 \ CMOVLE \ fixnum<= define-jit-compare
373 \ CMOVG \ fixnum> define-jit-compare
374 \ CMOVL \ fixnum< define-jit-compare
377 : jit-math ( insn -- )
381 ds-reg bootstrap-cell SUB
383 [ ds-reg [] temp0 ] dip execute( dst src -- ) ;
385 [ \ ADD jit-math ] \ fixnum+fast define-sub-primitive
387 [ \ SUB jit-math ] \ fixnum-fast define-sub-primitive
393 ds-reg bootstrap-cell SUB
397 temp0 tag-bits get SAR
402 ] \ fixnum*fast define-sub-primitive
404 [ \ AND jit-math ] \ fixnum-bitand define-sub-primitive
406 [ \ OR jit-math ] \ fixnum-bitor define-sub-primitive
408 [ \ XOR jit-math ] \ fixnum-bitxor define-sub-primitive
414 ds-reg [] tag-mask get XOR
415 ] \ fixnum-bitnot define-sub-primitive
419 shift-arg ds-reg [] MOV
421 shift-arg tag-bits get SAR
422 ! adjust stack pointer
423 ds-reg bootstrap-cell SUB
428 ! compute positive shift value in temp1
431 ! compute negative shift value in temp3
433 temp3 tag-mask get bitnot AND
435 ! if shift count was negative, move temp0 to temp1
439 ] \ fixnum-shift-fast define-sub-primitive
441 : jit-fixnum-/mod ( -- )
442 ! load second parameter
444 ! load first parameter
445 div-arg ds-reg bootstrap-cell neg [+] MOV
449 mod-arg bootstrap-cell-bits 1 - SAR
455 ! adjust stack pointer
456 ds-reg bootstrap-cell SUB
458 ds-reg [] mod-arg MOV
459 ] \ fixnum-mod define-sub-primitive
463 ! adjust stack pointer
464 ds-reg bootstrap-cell SUB
466 div-arg tag-bits get SHL
468 ds-reg [] div-arg MOV
469 ] \ fixnum/i-fast define-sub-primitive
474 div-arg tag-bits get SHL
476 ds-reg [] mod-arg MOV
477 ds-reg bootstrap-cell neg [+] div-arg MOV
478 ] \ fixnum/mod-fast define-sub-primitive
482 ds-reg bootstrap-cell SUB
484 temp0 tag-mask get AND
485 temp0 \ f type-number MOV
486 temp1 1 tag-fixnum MOV
489 ] \ both-fixnums? define-sub-primitive
494 ! turn local number into offset
497 temp0 rs-reg temp0 [+] MOV
500 ] \ get-local define-sub-primitive
505 ! adjust stack pointer
506 ds-reg bootstrap-cell SUB
507 ! turn local number into offset
509 ! decrement retain stack pointer
511 ] \ drop-locals define-sub-primitive
513 [ "bootstrap.x86" forget-vocab ] with-compilation-unit