1 /* src/vm/jit/arm/codegen.c - machine code generator for Arm
3 Copyright (C) 1996-2005, 2006, 2007, 2008
4 CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
6 This file is part of CACAO.
8 This program is free software; you can redistribute it and/or
9 modify it under the terms of the GNU General Public License as
10 published by the Free Software Foundation; either version 2, or (at
11 your option) any later version.
13 This program is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
35 #include "vm/jit/arm/arch.h"
36 #include "vm/jit/arm/codegen.h"
38 #include "mm/memory.h"
40 #include "native/localref.hpp"
41 #include "native/native.hpp"
43 #include "threads/lock.hpp"
45 #include "vm/jit/builtin.hpp"
46 #include "vm/exceptions.hpp"
47 #include "vm/global.h"
48 #include "vm/loader.hpp"
49 #include "vm/options.h"
52 #include "vm/jit/abi.h"
53 #include "vm/jit/asmpart.h"
54 #include "vm/jit/codegen-common.hpp"
55 #include "vm/jit/dseg.h"
56 #include "vm/jit/emit-common.hpp"
57 #include "vm/jit/jit.hpp"
58 #include "vm/jit/jitcache.hpp"
59 #include "vm/jit/linenumbertable.hpp"
60 #include "vm/jit/methodheader.h"
61 #include "vm/jit/parse.h"
62 #include "vm/jit/patcher-common.hpp"
63 #include "vm/jit/reg.h"
65 #if defined(ENABLE_LSRA)
66 #include "vm/jit/allocator/lsra.h"
70 /* codegen_emit ****************************************************************
72 Generates machine code.
74 *******************************************************************************/
76 bool codegen_emit(jitdata *jd)
94 methodinfo *lm; /* local methodinfo for ICMD_INVOKE* */
95 unresolved_method *um;
96 builtintable_entry *bte;
103 /* get required compiler data */
110 /* prevent compiler warnings */
118 /* space to save used callee saved registers */
120 savedregs_num = code_is_leafmethod(code) ? 0 : 1; /* space to save the LR */
122 savedregs_num += (INT_SAV_CNT - rd->savintreguse);
123 /*savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);*/
124 assert((FLT_SAV_CNT - rd->savfltreguse) == 0);
126 spilledregs_num = rd->memuse;
128 #if defined(ENABLE_THREADS) /* space to save argument of monitor_enter */
129 if (checksync && code_is_synchronized(code))
133 cd->stackframesize = spilledregs_num * 8 + savedregs_num * 4;
135 /* XXX QUICK FIX: We shouldn't align the stack in Java code, but
136 only in native stubs. */
137 /* align stack to 8-byte */
139 cd->stackframesize = (cd->stackframesize + 4) & ~4;
141 /* SECTION: Method Header */
142 /* create method header */
144 #if defined(ENABLE_JITCACHE)
145 disp = dseg_add_unique_address(cd, code); /* CodeinfoPointer */
146 jitcache_add_cached_ref(code, CRT_CODEINFO, 0, disp);
148 (void) dseg_add_unique_address(cd, code); /* CodeinfoPointer */
151 (void) dseg_add_unique_s4(cd, cd->stackframesize); /* FrameSize */
153 code->synchronizedoffset = rd->memuse * 8;
155 /* REMOVEME: We still need it for exception handling in assembler. */
157 if (code_is_leafmethod(code))
158 (void) dseg_add_unique_s4(cd, 1);
160 (void) dseg_add_unique_s4(cd, 0);
162 (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
163 (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
165 /* save return address and used callee saved registers */
167 savedregs_bitmask = 0;
169 if (!code_is_leafmethod(code))
170 savedregs_bitmask = (1<<REG_LR);
172 for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--)
173 savedregs_bitmask |= (1<<(rd->savintregs[i]));
176 for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
177 log_text("!!! CODEGEN: floating-point callee saved registers are not saved to stack (SEVERE! STACK IS MESSED UP!)");
178 /* TODO: floating-point */
182 if (savedregs_bitmask)
183 M_STMFD(savedregs_bitmask, REG_SP);
185 /* create additional stack frame for spilled variables (if necessary) */
187 if ((cd->stackframesize / 4 - savedregs_num) > 0)
188 M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
190 /* take arguments out of register or stack frame */
193 for (i = 0, len = 0; i < md->paramcount; i++) {
194 s1 = md->params[i].regoff;
195 t = md->paramtypes[i].type;
197 varindex = jd->local_map[len * 5 + t];
199 len += (IS_2_WORD_TYPE(t)) ? 2 : 1; /* 2 word type arguments */
201 if (varindex == UNUSED)
206 /* ATTENTION: we use interger registers for all arguments (even float) */
207 #if !defined(ENABLE_SOFTFLOAT)
208 if (IS_INT_LNG_TYPE(t)) {
210 if (!md->params[i].inmemory) {
211 if (!(var->flags & INMEMORY)) {
212 if (IS_2_WORD_TYPE(t))
213 M_LNGMOVE(s1, var->vv.regoff);
215 M_INTMOVE(s1, var->vv.regoff);
218 if (IS_2_WORD_TYPE(t))
219 M_LST(s1, REG_SP, var->vv.regoff);
221 M_IST(s1, REG_SP, var->vv.regoff);
224 else { /* stack arguments */
225 if (!(var->flags & INMEMORY)) { /* stack arg -> register */
226 if (IS_2_WORD_TYPE(t))
227 M_LLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
229 M_ILD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
231 else { /* stack arg -> spilled */
232 /* Reuse Memory Position on Caller Stack */
233 var->vv.regoff = cd->stackframesize + s1;
236 #if !defined(ENABLE_SOFTFLOAT)
239 if (!md->params[i].inmemory) {
240 if (!(var->flags & INMEMORY)) {
241 if (IS_2_WORD_TYPE(t))
242 M_CAST_L2D(s1, var->vv.regoff);
244 M_CAST_I2F(s1, var->vv.regoff);
247 if (IS_2_WORD_TYPE(t))
248 M_LST(s1, REG_SP, var->vv.regoff);
250 M_IST(s1, REG_SP, var->vv.regoff);
254 if (!(var->flags & INMEMORY)) {
255 if (IS_2_WORD_TYPE(t))
256 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
258 M_FLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
261 /* Reuse Memory Position on Caller Stack */
262 var->vv.regoff = cd->stackframesize + s1;
266 #endif /* !defined(ENABLE_SOFTFLOAT) */
269 #if defined(ENABLE_THREADS)
270 /* call monitorenter function */
272 if (checksync && code_is_synchronized(code)) {
273 /* stack offset for monitor argument */
277 # if !defined(NDEBUG)
278 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
279 M_STMFD(BITMASK_ARGS, REG_SP);
284 /* get the correct lock object */
286 if (m->flags & ACC_STATIC) {
287 disp = dseg_add_address(cd, &m->clazz->object.header);
288 JITCACHE_ADD_CACHED_REF(code, CRT_OBJECT_HEADER, m->clazz, disp);
289 M_DSEG_LOAD(REG_A0, disp);
292 emit_nullpointer_check_force(cd, iptr, REG_A0);
295 M_STR(REG_A0, REG_SP, s1);
296 disp = dseg_add_functionptr(cd, LOCK_monitor_enter);
297 JITCACHE_ADD_CACHED_REF(code,
298 CRT_BUILTIN_FP, builtintable_get_internal(LOCK_monitor_enter), disp);
300 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
303 # if !defined(NDEBUG)
304 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
305 M_LDMFD(BITMASK_ARGS, REG_SP);
311 /* call trace function */
313 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
314 emit_verbosecall_enter(jd);
317 /* end of header generation */
319 /* create replacement points */
320 REPLACEMENT_POINTS_INIT(cd, jd);
322 /* SECTION: ICMD Code Generation */
323 /* for all basic blocks */
325 for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
327 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
329 /* is this basic block reached? */
331 if (bptr->flags < BBREACHED)
334 /* branch resolving */
336 codegen_resolve_branchrefs(cd, bptr);
338 /* handle replacement points */
339 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
341 /* copy interface registers to their destination */
347 #if defined(ENABLE_LSRA)
351 var = VAR(bptr->invars[len]);
352 if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
353 if (!(var->flags & INMEMORY))
357 M_INTMOVE(REG_ITMP1, d);
358 emit_store(jd, NULL, var, d);
365 var = VAR(bptr->invars[len]);
367 if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
368 d = codegen_reg_of_var(0, var, REG_ITMP1);
369 M_INTMOVE(REG_ITMP1, d);
370 emit_store(jd, NULL, var, d);
373 assert((var->flags & INOUT));
376 #if defined(ENABLE_LSRA)
380 /* for all instructions */
383 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
385 /* add line number */
386 if (iptr->line != currentline) {
387 linenumbertable_list_entry_add(cd, iptr->line);
388 currentline = iptr->line;
391 MCODECHECK(64); /* an instruction usually needs < 64 words */
396 case ICMD_NOP: /* ... ==> ... */
397 case ICMD_POP: /* ..., value ==> ... */
398 case ICMD_POP2: /* ..., value, value ==> ... */
401 /* constant operations ************************************************/
403 case ICMD_ICONST: /* ... ==> ..., constant */
405 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
406 ICONST(d, iptr->sx.val.i);
407 emit_store_dst(jd, iptr, d);
410 case ICMD_ACONST: /* ... ==> ..., constant */
412 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
413 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
414 disp = dseg_add_unique_address(cd, NULL);
416 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
417 iptr->sx.val.c.ref, disp);
419 M_DSEG_LOAD(d, disp);
422 #if defined(ENABLE_JITCACHE)
423 /* Dealing with ICONST and the JIT cache is tricky because
424 * ICONST generates different code depending on the value of the
425 * number. We therefore go the slightly less optimal way and
426 * generate an entry in the data segment.
427 * For the null constant however we use the plain integer load.
429 if (iptr->sx.val.anyptr)
431 disp = dseg_add_unique_address(cd, iptr->sx.val.anyptr);
433 jitcache_add_cached_ref(code,
434 (iptr->flags.bits & INS_FLAG_CLASS) ? CRT_CLASSINFO
436 (iptr->flags.bits & INS_FLAG_CLASS) ? iptr->sx.val.c.cls
437 : iptr->sx.val.stringconst,
440 M_DSEG_LOAD(d, disp);
447 ICONST(d, (u4) iptr->sx.val.anyptr);
450 emit_store_dst(jd, iptr, d);
453 case ICMD_LCONST: /* ... ==> ..., constant */
455 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
456 LCONST(d, iptr->sx.val.l);
457 emit_store_dst(jd, iptr, d);
460 case ICMD_FCONST: /* ... ==> ..., constant */
462 #if defined(ENABLE_SOFTFLOAT)
463 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
464 ICONST(d, iptr->sx.val.i);
465 emit_store_dst(jd, iptr, d);
467 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
468 FCONST(d, iptr->sx.val.f);
469 emit_store_dst(jd, iptr, d);
473 case ICMD_DCONST: /* ... ==> ..., constant */
475 #if defined(ENABLE_SOFTFLOAT)
476 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
477 LCONST(d, iptr->sx.val.l);
478 emit_store_dst(jd, iptr, d);
480 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
481 DCONST(d, iptr->sx.val.d);
482 emit_store_dst(jd, iptr, d);
487 /* load/store/copy/move operations ************************************/
489 case ICMD_ILOAD: /* ... ==> ..., content of local variable */
490 case ICMD_ALOAD: /* op1 = local variable */
494 case ICMD_ISTORE: /* ..., value ==> ... */
506 if (!(iptr->flags.bits & INS_FLAG_RETADDR))
511 /* integer operations *************************************************/
513 case ICMD_INT2BYTE: /* ..., value ==> ..., value */
515 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
516 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
517 M_MOV(d, REG_LSL(s1, 24));
518 M_MOV(d, REG_ASR(d, 24));
519 emit_store_dst(jd, iptr, d);
522 case ICMD_INT2CHAR: /* ..., value ==> ..., value */
524 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
525 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
526 M_MOV(d, REG_LSL(s1, 16));
527 M_MOV(d, REG_LSR(d, 16)); /* ATTENTION: char is unsigned */
528 emit_store_dst(jd, iptr, d);
531 case ICMD_INT2SHORT: /* ..., value ==> ..., value */
533 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
534 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
535 M_MOV(d, REG_LSL(s1, 16));
536 M_MOV(d, REG_ASR(d, 16));
537 emit_store_dst(jd, iptr, d);
540 case ICMD_I2L: /* ..., value ==> ..., value */
542 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
543 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
544 M_INTMOVE(s1, GET_LOW_REG(d));
545 M_MOV(GET_HIGH_REG(d), REG_ASR(s1, 31));
546 emit_store_dst(jd, iptr, d);
549 case ICMD_L2I: /* ..., value ==> ..., value */
551 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
552 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
554 emit_store_dst(jd, iptr, d);
557 case ICMD_INEG: /* ..., value ==> ..., - value */
559 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
560 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
562 emit_store_dst(jd, iptr, d);
565 case ICMD_LNEG: /* ..., value ==> ..., - value */
567 s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
568 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
569 M_RSB_IMMS(GET_LOW_REG(d), GET_LOW_REG(s1), 0);
570 M_RSC_IMM(GET_HIGH_REG(d), GET_HIGH_REG(s1), 0);
571 emit_store_dst(jd, iptr, d);
574 case ICMD_IADD: /* ..., val1, val2 ==> ..., val1 + val2 */
576 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
577 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
578 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
580 emit_store_dst(jd, iptr, d);
583 case ICMD_LADD: /* ..., val1, val2 ==> ..., val1 + val2 */
585 s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
586 s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
587 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
588 M_ADD_S(GET_LOW_REG(d), s1, s2);
589 s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
590 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
591 M_ADC(GET_HIGH_REG(d), s1, s2);
592 emit_store_dst(jd, iptr, d);
598 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
599 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
601 if (IS_IMM(iptr->sx.val.i)) {
602 M_ADD_IMM(d, s1, iptr->sx.val.i);
603 } else if (IS_IMM(-iptr->sx.val.i)) {
604 M_SUB_IMM(d, s1, (-iptr->sx.val.i));
606 ICONST(REG_ITMP3, iptr->sx.val.i);
607 M_ADD(d, s1, REG_ITMP3);
610 emit_store_dst(jd, iptr, d);
613 case ICMD_LADDCONST: /* ..., value ==> ..., value + constant */
614 /* sx.val.l = constant */
616 s3 = iptr->sx.val.l & 0xffffffff;
617 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
618 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
620 M_ADD_IMMS(GET_LOW_REG(d), s1, s3);
622 ICONST(REG_ITMP3, s3);
623 M_ADD_S(GET_LOW_REG(d), s1, REG_ITMP3);
625 s3 = iptr->sx.val.l >> 32;
626 s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
628 M_ADC_IMM(GET_HIGH_REG(d), s1, s3);
630 ICONST(REG_ITMP3, s3);
631 M_ADC(GET_HIGH_REG(d), s1, REG_ITMP3);
633 emit_store_dst(jd, iptr, d);
636 case ICMD_ISUB: /* ..., val1, val2 ==> ..., val1 - val2 */
638 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
639 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
640 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
642 emit_store_dst(jd, iptr, d);
645 case ICMD_LSUB: /* ..., val1, val2 ==> ..., val1 - val2 */
647 s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
648 s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
649 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
650 M_SUB_S(GET_LOW_REG(d), s1, s2);
651 s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
652 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
653 M_SBC(GET_HIGH_REG(d), s1, s2);
654 emit_store_dst(jd, iptr, d);
657 case ICMD_ISUBCONST: /* ..., value ==> ..., value + constant */
658 /* sx.val.i = constant */
660 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
661 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
662 if (IS_IMM(iptr->sx.val.i))
663 M_SUB_IMM(d, s1, iptr->sx.val.i);
665 ICONST(REG_ITMP3, iptr->sx.val.i);
666 M_SUB(d, s1, REG_ITMP3);
668 emit_store_dst(jd, iptr, d);
671 case ICMD_LSUBCONST: /* ..., value ==> ..., value - constant */
672 /* sx.val.l = constant */
674 s3 = iptr->sx.val.l & 0xffffffff;
675 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
676 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
678 M_SUB_IMMS(GET_LOW_REG(d), s1, s3);
680 ICONST(REG_ITMP3, s3);
681 M_SUB_S(GET_LOW_REG(d), s1, REG_ITMP3);
683 s3 = iptr->sx.val.l >> 32;
684 s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
686 M_SBC_IMM(GET_HIGH_REG(d), s1, s3);
688 ICONST(REG_ITMP3, s3);
689 M_SBC(GET_HIGH_REG(d), s1, REG_ITMP3);
691 emit_store_dst(jd, iptr, d);
694 case ICMD_IMUL: /* ..., val1, val2 ==> ..., val1 * val2 */
696 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
697 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
698 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
700 emit_store_dst(jd, iptr, d);
703 case ICMD_IDIV: /* ..., val1, val2 ==> ..., val1 / val2 */
704 case ICMD_IREM: /* ..., val1, val2 ==> ..., val1 % val2 */
706 s1 = emit_load_s1(jd, iptr, REG_A0);
707 s2 = emit_load_s2(jd, iptr, REG_A1);
708 emit_arithmetic_check(cd, iptr, s2);
710 /* move arguments into argument registers */
711 M_INTMOVE(s1, REG_A0);
712 M_INTMOVE(s2, REG_A1);
714 /* call builtin function */
715 bte = iptr->sx.s23.s3.bte;
716 disp = dseg_add_functionptr(cd, bte->fp);
717 JITCACHE_ADD_CACHED_REF(code, CRT_BUILTIN_FP, bte, disp);
721 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
724 /* move result into destination register */
725 d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
726 M_INTMOVE(REG_RESULT, d);
727 emit_store_dst(jd, iptr, d);
730 case ICMD_LDIV: /* ..., val1, val2 ==> ..., val1 / val2 */
731 case ICMD_LREM: /* ..., val1, val2 ==> ..., val1 % val2 */
733 /* move arguments into argument registers */
735 s1 = emit_load_s1(jd, iptr, REG_A0_A1_PACKED);
736 s2 = emit_load_s2(jd, iptr, REG_A2_A3_PACKED);
737 /* XXX TODO: only do this if arithmetic check is really done! */
738 M_ORR(GET_HIGH_REG(s2), GET_LOW_REG(s2), REG_ITMP3);
739 emit_arithmetic_check(cd, iptr, REG_ITMP3);
741 M_LNGMOVE(s1, REG_A0_A1_PACKED);
742 M_LNGMOVE(s2, REG_A2_A3_PACKED);
744 /* call builtin function */
745 bte = iptr->sx.s23.s3.bte;
746 disp = dseg_add_functionptr(cd, bte->fp);
747 JITCACHE_ADD_CACHED_REF(code, CRT_BUILTIN_FP, bte, disp);
751 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
754 /* move result into destination register */
755 d = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
756 M_LNGMOVE(REG_RESULT_PACKED, d);
757 emit_store_dst(jd, iptr, d);
760 case ICMD_IMULPOW2: /* ..., value ==> ..., value * (2 ^ constant) */
761 /* sx.val.i = constant */
763 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
764 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
765 M_MOV(d, REG_LSL(s1, iptr->sx.val.i));
766 emit_store_dst(jd, iptr, d);
769 case ICMD_IDIVPOW2: /* ..., value ==> ..., value / (2 ^ constant) */
770 /* sx.val.i = constant */
772 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
773 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
774 /* this rounds towards 0 as java likes it */
775 M_MOV(REG_ITMP3, REG_ASR(s1, 31));
776 M_ADD(REG_ITMP3, s1, REG_LSR(REG_ITMP3, 32 - iptr->sx.val.i));
777 M_MOV(d, REG_ASR(REG_ITMP3, iptr->sx.val.i));
778 /* this rounds towards nearest, not java style */
779 /*M_MOV_S(d, REG_ASR(s1, iptr->sx.val.i));
780 M_ADCMI_IMM(d, d, 0);*/
781 emit_store_dst(jd, iptr, d);
784 case ICMD_IREMPOW2: /* ..., value ==> ..., value % constant */
785 /* sx.val.i = constant [ (2 ^ x) - 1 ] */
787 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
788 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
789 M_MOV_S(REG_ITMP1, s1);
790 M_RSBMI_IMM(REG_ITMP1, REG_ITMP1, 0);
791 if (IS_IMM(iptr->sx.val.i))
792 M_AND_IMM(REG_ITMP1, iptr->sx.val.i, d);
794 ICONST(REG_ITMP3, iptr->sx.val.i);
795 M_AND(REG_ITMP1, REG_ITMP3, d);
797 M_RSBMI_IMM(d, d, 0);
798 emit_store_dst(jd, iptr, d);
801 case ICMD_ISHL: /* ..., val1, val2 ==> ..., val1 << val2 */
803 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
804 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
805 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
806 M_AND_IMM(s2, 0x1f, REG_ITMP2);
807 M_MOV(d, REG_LSL_REG(s1, REG_ITMP2));
808 emit_store_dst(jd, iptr, d);
811 case ICMD_ISHR: /* ..., val1, val2 ==> ..., val1 >> val2 */
813 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
814 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
815 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
816 M_AND_IMM(s2, 0x1f, REG_ITMP2);
817 M_MOV(d, REG_ASR_REG(s1, REG_ITMP2));
818 emit_store_dst(jd, iptr, d);
821 case ICMD_IUSHR: /* ..., val1, val2 ==> ..., val1 >>> val2 */
823 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
824 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
825 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
826 M_AND_IMM(s2, 0x1f, REG_ITMP2);
827 M_MOV(d, REG_LSR_REG(s1, REG_ITMP2));
828 emit_store_dst(jd, iptr, d);
831 case ICMD_ISHLCONST: /* ..., value ==> ..., value << constant */
832 /* sx.val.i = constant */
834 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
835 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
836 M_MOV(d, REG_LSL(s1, iptr->sx.val.i & 0x1f));
837 emit_store_dst(jd, iptr, d);
840 case ICMD_ISHRCONST: /* ..., value ==> ..., value >> constant */
841 /* sx.val.i = constant */
843 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
844 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
845 /* we need to check for zero here because arm interprets it as SHR by 32 */
846 if ((iptr->sx.val.i & 0x1f) == 0) {
849 M_MOV(d, REG_ASR(s1, iptr->sx.val.i & 0x1f));
851 emit_store_dst(jd, iptr, d);
854 case ICMD_IUSHRCONST: /* ..., value ==> ..., value >>> constant */
855 /* sx.val.i = constant */
857 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
858 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
859 /* we need to check for zero here because arm interprets it as SHR by 32 */
860 if ((iptr->sx.val.i & 0x1f) == 0)
863 M_MOV(d, REG_LSR(s1, iptr->sx.val.i & 0x1f));
864 emit_store_dst(jd, iptr, d);
867 case ICMD_IAND: /* ..., val1, val2 ==> ..., val1 & val2 */
869 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
870 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
871 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
873 emit_store_dst(jd, iptr, d);
876 case ICMD_LAND: /* ..., val1, val2 ==> ..., val1 & val2 */
878 s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
879 s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
880 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
881 M_AND(s1, s2, GET_LOW_REG(d));
882 s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
883 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
884 M_AND(s1, s2, GET_HIGH_REG(d));
885 emit_store_dst(jd, iptr, d);
888 case ICMD_IOR: /* ..., val1, val2 ==> ..., val1 | val2 */
890 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
891 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
892 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
894 emit_store_dst(jd, iptr, d);
897 case ICMD_LOR: /* ..., val1, val2 ==> ..., val1 | val2 */
899 s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
900 s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
901 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
902 M_ORR(s1, s2, GET_LOW_REG(d));
903 s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
904 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
905 M_ORR(s1, s2, GET_HIGH_REG(d));
906 emit_store_dst(jd, iptr, d);
909 case ICMD_IXOR: /* ..., val1, val2 ==> ..., val1 ^ val2 */
911 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
912 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
913 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
915 emit_store_dst(jd, iptr, d);
918 case ICMD_LXOR: /* ..., val1, val2 ==> ..., val1 ^ val2 */
920 s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
921 s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
922 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
923 M_EOR(s1, s2, GET_LOW_REG(d));
924 s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
925 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
926 M_EOR(s1, s2, GET_HIGH_REG(d));
927 emit_store_dst(jd, iptr, d);
931 /* floating operations ************************************************/
933 #if !defined(ENABLE_SOFTFLOAT)
935 case ICMD_FNEG: /* ..., value ==> ..., - value */
937 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
938 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
940 emit_store_dst(jd, iptr, d);
943 case ICMD_FADD: /* ..., val1, val2 ==> ..., val1 + val2 */
945 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
946 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
947 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
949 emit_store_dst(jd, iptr, d);
952 case ICMD_FSUB: /* ..., val1, val2 ==> ..., val1 - val2 */
954 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
955 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
956 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
958 emit_store_dst(jd, iptr, d);
961 case ICMD_FMUL: /* ..., val1, val2 ==> ..., val1 * val2 */
963 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
964 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
965 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
967 emit_store_dst(jd, iptr, d);
970 case ICMD_FDIV: /* ..., val1, val2 ==> ..., val1 / val2 */
971 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
972 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
973 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
975 emit_store_dst(jd, iptr, d);
978 /* ATTENTION: Jave does not want IEEE behaviour in FREM, do
982 case ICMD_FREM: /* ..., val1, val2 ==> ..., val1 % val2 */
984 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
985 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
986 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
988 emit_store_dst(jd, iptr, d);
992 case ICMD_DNEG: /* ..., value ==> ..., - value */
994 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
995 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
997 emit_store_dst(jd, iptr, d);
1000 case ICMD_DADD: /* ..., val1, val2 ==> ..., val1 + val2 */
1002 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1003 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1004 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1006 emit_store_dst(jd, iptr, d);
1009 case ICMD_DSUB: /* ..., val1, val2 ==> ..., val1 - val2 */
1011 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1012 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1013 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1015 emit_store_dst(jd, iptr, d);
1018 case ICMD_DMUL: /* ..., val1, val2 ==> ..., val1 * val2 */
1020 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1021 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1022 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1024 emit_store_dst(jd, iptr, d);
1027 case ICMD_DDIV: /* ..., val1, val2 ==> ..., val1 / val2 */
1029 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1030 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1031 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1033 emit_store_dst(jd, iptr, d);
1036 /* ATTENTION: Jave does not want IEEE behaviour in DREM, do
1040 case ICMD_DREM: /* ..., val1, val2 ==> ..., val1 % val2 */
1042 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1043 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1044 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1046 emit_store_dst(jd, iptr, d);
1050 case ICMD_I2F: /* ..., value ==> ..., (float) value */
1052 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1053 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1054 #if defined(__VFP_FP__)
1060 emit_store_dst(jd, iptr, d);
1063 case ICMD_I2D: /* ..., value ==> ..., (double) value */
1065 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1066 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1067 #if defined(__VFP_FP__)
1073 emit_store_dst(jd, iptr, d);
1076 case ICMD_F2I: /* ..., value ==> ..., (int) value */
1078 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1079 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1080 #if defined(__VFP_FP__)
1081 M_CVTFI(s1, REG_FTMP2);
1082 M_FMRS(REG_FTMP2, d);
1084 /* this uses round towards zero, as Java likes it */
1086 /* this checks for NaN; to return zero as Java likes it */
1090 emit_store_dst(jd, iptr, d);
1093 case ICMD_D2I: /* ..., value ==> ..., (int) value */
1095 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1096 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1097 #if defined(__VFP_FP__)
1098 M_CVTDI(s1, REG_FTMP2);
1099 M_FMRS(REG_FTMP2, d);
1101 /* this uses round towards zero, as Java likes it */
1103 /* this checks for NaN; to return zero as Java likes it */
1107 emit_store_dst(jd, iptr, d);
1110 case ICMD_D2F: /* ..., value ==> ..., (float) value */
1112 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1113 d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1115 emit_store_dst(jd, iptr, d);
1118 case ICMD_F2D: /* ..., value ==> ..., (double) value */
1120 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1121 d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1123 emit_store_dst(jd, iptr, d);
1126 case ICMD_FCMPG: /* ..., val1, val2 ==> ..., val1 fcmpg val2 */
1128 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1129 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1130 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1133 #if defined(__VFP_FP__)
1134 M_FMSTAT; /* on VFP we need to transfer the flags */
1136 M_SUBGT_IMM(d, d, 1);
1137 M_ADDLT_IMM(d, d, 1);
1138 emit_store_dst(jd, iptr, d);
1141 case ICMD_DCMPG: /* ..., val1, val2 ==> ..., val1 dcmpg val2 */
1143 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1144 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1145 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1148 #if defined(__VFP_FP__)
1149 M_FMSTAT; /* on VFP we need to transfer the flags */
1151 M_SUBGT_IMM(d, d, 1);
1152 M_ADDLT_IMM(d, d, 1);
1153 emit_store_dst(jd, iptr, d);
1156 case ICMD_FCMPL: /* ..., val1, val2 ==> ..., val1 fcmpl val2 */
1158 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1159 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1160 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1163 #if defined(__VFP_FP__)
1164 M_FMSTAT; /* on VFP we need to transfer the flags */
1166 M_SUBLT_IMM(d, d, 1);
1167 M_ADDGT_IMM(d, d, 1);
1168 emit_store_dst(jd, iptr, d);
1171 case ICMD_DCMPL: /* ..., val1, val2 ==> ..., val1 dcmpl val2 */
1173 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1174 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1175 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1178 #if defined(__VFP_FP__)
1179 M_FMSTAT; /* on VFP we need to transfer the flags */
1181 M_SUBLT_IMM(d, d, 1);
1182 M_ADDGT_IMM(d, d, 1);
1183 emit_store_dst(jd, iptr, d);
1186 #endif /* !defined(ENABLE_SOFTFLOAT) */
1189 /* memory operations **************************************************/
1191 case ICMD_ARRAYLENGTH: /* ..., arrayref ==> ..., length */
1193 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1194 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1195 /* implicit null-pointer check */
1196 M_ILD_INTERN(d, s1, OFFSET(java_array_t, size));
1197 emit_store_dst(jd, iptr, d);
1200 case ICMD_BALOAD: /* ..., arrayref, index ==> ..., value */
1202 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1203 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1204 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1205 /* implicit null-pointer check */
1206 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1207 M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1208 M_LDRSB(d, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1209 emit_store_dst(jd, iptr, d);
1212 case ICMD_CALOAD: /* ..., arrayref, index ==> ..., value */
1214 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1215 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1216 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1217 /* implicit null-pointer check */
1218 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1219 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1220 M_LDRH(d, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1221 emit_store_dst(jd, iptr, d);
1224 case ICMD_SALOAD: /* ..., arrayref, index ==> ..., value */
1226 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1227 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1228 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1229 /* implicit null-pointer check */
1230 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1231 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1232 M_LDRSH(d, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1233 emit_store_dst(jd, iptr, d);
1236 case ICMD_IALOAD: /* ..., arrayref, index ==> ..., value */
1238 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1239 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1240 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1241 /* implicit null-pointer check */
1242 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1243 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1244 M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1245 emit_store_dst(jd, iptr, d);
1248 case ICMD_LALOAD: /* ..., arrayref, index ==> ..., value */
1250 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1251 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1252 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1253 /* implicit null-pointer check */
1254 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1255 M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1256 M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1257 emit_store_dst(jd, iptr, d);
1260 case ICMD_FALOAD: /* ..., arrayref, index ==> ..., value */
1262 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1263 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1264 /* implicit null-pointer check */
1265 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1266 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1267 #if !defined(ENABLE_SOFTFLOAT)
1268 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1269 M_FLD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1271 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1272 M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1274 emit_store_dst(jd, iptr, d);
1277 case ICMD_DALOAD: /* ..., arrayref, index ==> ..., value */
1279 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1280 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1281 /* implicit null-pointer check */
1282 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1283 M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1284 #if !defined(ENABLE_SOFTFLOAT)
1285 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1286 M_DLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1288 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1289 M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1291 emit_store_dst(jd, iptr, d);
1294 case ICMD_AALOAD: /* ..., arrayref, index ==> ..., value */
1296 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1297 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1298 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1299 /* implicit null-pointer check */
1300 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1301 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1302 M_LDR_INTERN(d, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1303 emit_store_dst(jd, iptr, d);
1306 case ICMD_BASTORE: /* ..., arrayref, index, value ==> ... */
1308 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1309 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1310 /* implicit null-pointer check */
1311 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1312 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1313 M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1314 M_STRB(s3, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1317 case ICMD_CASTORE: /* ..., arrayref, index, value ==> ... */
1319 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1320 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1321 /* implicit null-pointer check */
1322 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1323 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1324 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1325 M_STRH(s3, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1328 case ICMD_SASTORE: /* ..., arrayref, index, value ==> ... */
1330 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1331 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1332 /* implicit null-pointer check */
1333 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1334 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1335 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1336 M_STRH(s3, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1339 case ICMD_IASTORE: /* ..., arrayref, index, value ==> ... */
1341 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1342 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1343 /* implicit null-pointer check */
1344 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1345 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1346 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1347 M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1350 case ICMD_LASTORE: /* ..., arrayref, index, value ==> ... */
1352 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1353 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1354 /* implicit null-pointer check */
1355 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1356 M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1357 s3 = emit_load_s3(jd, iptr, REG_ITMP12_PACKED);
1358 M_LST_INTERN(s3, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1361 case ICMD_FASTORE: /* ..., arrayref, index, value ==> ... */
1363 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1364 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1365 /* implicit null-pointer check */
1366 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1367 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1368 #if !defined(ENABLE_SOFTFLOAT)
1369 s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1370 M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1372 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1373 M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1377 case ICMD_DASTORE: /* ..., arrayref, index, value ==> ... */
1379 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1380 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1381 /* implicit null-pointer check */
1382 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1383 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 3)); /* REG_ITMP1 = s1 + 8 * s2 */
1384 #if !defined(ENABLE_SOFTFLOAT)
1385 s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1386 M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1388 s3 = emit_load_s3(jd, iptr, REG_ITMP23_PACKED);
1389 M_LST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1393 case ICMD_AASTORE: /* ..., arrayref, index, value ==> ... */
1395 s1 = emit_load_s1(jd, iptr, REG_A0);
1396 s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1397 s3 = emit_load_s3(jd, iptr, REG_A1);
1399 /* implicit null-pointer check */
1400 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1402 /* move arguments to argument registers */
1403 M_INTMOVE(s1, REG_A0);
1404 M_INTMOVE(s3, REG_A1);
1406 /* call builtin function */
1407 disp = dseg_add_functionptr(cd, BUILTIN_FAST_canstore);
1408 JITCACHE_ADD_CACHED_REF(
1409 code, CRT_BUILTIN_FP,
1410 builtintable_get_internal(BUILTIN_FAST_canstore), disp);
1412 M_DSEG_BRANCH(disp);
1415 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
1418 /* check resturn value of builtin */
1419 emit_arraystore_check(cd, iptr);
1421 /* finally store address into array */
1422 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1423 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1424 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1425 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1426 M_STR_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1429 case ICMD_GETSTATIC: /* ... ==> ..., value */
1431 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1432 uf = iptr->sx.s23.s3.uf;
1433 fieldtype = uf->fieldref->parseddesc.fd->type;
1434 disp = dseg_add_unique_address(cd, NULL);
1436 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1439 fi = iptr->sx.s23.s3.fmiref->p.field;
1440 fieldtype = fi->type;
1441 disp = dseg_add_address(cd, fi->value);
1442 JITCACHE_ADD_CACHED_REF(code, CRT_FIELDINFO_VALUE, fi, disp);
1443 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->clazz)) {
1444 patcher_add_patch_ref(jd, PATCHER_initialize_class,
1449 M_DSEG_LOAD(REG_ITMP3, disp);
1450 switch (fieldtype) {
1452 #if defined(ENABLE_SOFTFLOAT)
1456 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1457 M_ILD_INTERN(d, REG_ITMP3, 0);
1460 #if defined(ENABLE_SOFTFLOAT)
1463 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1464 M_LLD_INTERN(d, REG_ITMP3, 0);
1466 #if !defined(ENABLE_SOFTFLOAT)
1468 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1469 M_FLD_INTERN(d, REG_ITMP3, 0);
1472 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1473 M_DLD_INTERN(d, REG_ITMP3, 0);
1479 emit_store_dst(jd, iptr, d);
1482 case ICMD_PUTSTATIC: /* ..., value ==> ... */
1484 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1485 uf = iptr->sx.s23.s3.uf;
1486 fieldtype = uf->fieldref->parseddesc.fd->type;
1487 disp = dseg_add_unique_address(cd, NULL);
1489 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1492 fi = iptr->sx.s23.s3.fmiref->p.field;
1493 fieldtype = fi->type;
1494 disp = dseg_add_address(cd, fi->value);
1495 JITCACHE_ADD_CACHED_REF(code, CRT_FIELDINFO_VALUE, fi, disp);
1496 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->clazz)) {
1497 patcher_add_patch_ref(jd, PATCHER_initialize_class,
1502 M_DSEG_LOAD(REG_ITMP3, disp);
1503 switch (fieldtype) {
1505 #if defined(ENABLE_SOFTFLOAT)
1509 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1510 M_IST_INTERN(s1, REG_ITMP3, 0);
1513 #if defined(ENABLE_SOFTFLOAT)
1516 s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
1517 M_LST_INTERN(s1, REG_ITMP3, 0);
1519 #if !defined(ENABLE_SOFTFLOAT)
1521 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1522 M_FST_INTERN(s1, REG_ITMP3, 0);
1525 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1526 M_DST_INTERN(s1, REG_ITMP3, 0);
1534 case ICMD_GETFIELD: /* ..., objectref, value ==> ... */
1536 s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1537 emit_nullpointer_check(cd, iptr, s1);
1540 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1541 uf = iptr->sx.s23.s3.uf;
1542 fieldtype = uf->fieldref->parseddesc.fd->type;
1546 fi = iptr->sx.s23.s3.fmiref->p.field;
1547 fieldtype = fi->type;
1551 #if !defined(ENABLE_SOFTFLOAT)
1552 /* HACK: softnull checks on floats */
1553 if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1554 emit_nullpointer_check_force(cd, iptr, s1);
1557 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1559 uf = iptr->sx.s23.s3.uf;
1561 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1564 switch (fieldtype) {
1566 #if defined(ENABLE_SOFTFLOAT)
1570 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1574 #if defined(ENABLE_SOFTFLOAT)
1577 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1580 #if !defined(ENABLE_SOFTFLOAT)
1582 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1586 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1593 emit_store_dst(jd, iptr, d);
1596 case ICMD_PUTFIELD: /* ..., objectref, value ==> ... */
1598 s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1599 emit_nullpointer_check(cd, iptr, s1);
1601 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1602 uf = iptr->sx.s23.s3.uf;
1603 fieldtype = uf->fieldref->parseddesc.fd->type;
1607 fi = iptr->sx.s23.s3.fmiref->p.field;
1608 fieldtype = fi->type;
1612 #if !defined(ENABLE_SOFTFLOAT)
1613 /* HACK: softnull checks on floats */
1614 if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1615 emit_nullpointer_check_force(cd, iptr, s1);
1618 switch (fieldtype) {
1620 #if defined(ENABLE_SOFTFLOAT)
1624 s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1626 #if defined(ENABLE_SOFTFLOAT)
1627 case TYPE_DBL: /* fall through */
1630 s2 = emit_load_s2(jd, iptr, REG_ITMP12_PACKED);
1632 #if !defined(ENABLE_SOFTFLOAT)
1635 s2 = emit_load_s2(jd, iptr, REG_FTMP1);
1642 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1644 uf = iptr->sx.s23.s3.uf;
1646 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1649 switch (fieldtype) {
1651 #if defined(ENABLE_SOFTFLOAT)
1655 M_IST(s2, s1, disp);
1658 #if defined(ENABLE_SOFTFLOAT)
1661 M_LST(s2, s1, disp);
1663 #if !defined(ENABLE_SOFTFLOAT)
1665 M_FST(s2, s1, disp);
1668 M_DST(s2, s1, disp);
1677 /* branch operations **************************************************/
1679 case ICMD_ATHROW: /* ..., objectref ==> ... (, objectref) */
1681 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1682 M_INTMOVE(s1, REG_ITMP1_XPTR);
1683 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1684 patcher_add_patch_ref(jd, PATCHER_resolve_class,
1685 iptr->sx.s23.s2.uc, 0);
1687 disp = dseg_add_functionptr(cd, asm_handle_exception);
1688 JITCACHE_ADD_CACHED_REF(code, CRT_ASM_HANDLE_EXCEPTION, NULL, disp);
1689 M_DSEG_LOAD(REG_ITMP3, disp);
1690 M_MOV(REG_ITMP2_XPC, REG_PC);
1691 M_MOV(REG_PC, REG_ITMP3);
1692 M_NOP; /* nop ensures that XPC is less than the end */
1693 /* of basic block */
1696 case ICMD_GOTO: /* ... ==> ... */
1699 emit_br(cd, iptr->dst.block);
1702 case ICMD_JSR: /* ... ==> ... */
1704 emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1707 case ICMD_IFNULL: /* ..., value ==> ... */
1708 case ICMD_IFNONNULL:
1710 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1712 emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFNULL, BRANCH_OPT_NONE);
1715 case ICMD_IFLT: /* ..., value ==> ... */
1716 case ICMD_IFLE: /* op1 = target JavaVM pc, val.i = constant */
1722 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1723 M_COMPARE(s1, iptr->sx.val.i);
1724 emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1727 case ICMD_IF_LEQ: /* ..., value ==> ... */
1729 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1730 s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1731 if (iptr->sx.val.l == 0) {
1732 M_ORR_S(s1, s2, REG_ITMP3);
1735 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1736 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1737 M_CMP(s1, REG_ITMP3);*/
1738 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1739 M_CMPEQ(s2, REG_ITMP3);
1741 emit_beq(cd, iptr->dst.block);
1744 case ICMD_IF_LLT: /* ..., value ==> ... */
1746 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1747 s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1748 if (iptr->sx.val.l == 0) {
1749 /* if high word is less than zero, the whole long is too */
1751 emit_blt(cd, iptr->dst.block);
1754 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1755 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1756 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1757 M_CMP(s1, REG_ITMP3);*/
1758 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1759 M_MOVGT_IMM(2, REG_ITMP1);
1760 M_MOVEQ_IMM(1, REG_ITMP1);
1762 /* low compare: x=x-1(ifLO) */
1763 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1764 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1765 M_CMP(s2, REG_ITMP3);*/
1766 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1768 /* branch if (x LT 1) */
1769 M_CMP_IMM(REG_ITMP1, 1);
1770 emit_blt(cd, iptr->dst.block);
1774 case ICMD_IF_LLE: /* ..., value ==> ... */
1776 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1777 s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1778 if (iptr->sx.val.l == 0) {
1779 /* if high word is less than zero, the whole long is too */
1781 emit_blt(cd, iptr->dst.block);
1783 /* ... otherwise the low word has to be zero (tricky!) */
1785 emit_beq(cd, iptr->dst.block);
1788 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1789 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1790 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1791 M_CMP(s1, REG_ITMP3);*/
1792 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1793 M_MOVGT_IMM(2, REG_ITMP1);
1794 M_MOVEQ_IMM(1, REG_ITMP1);
1796 /* low compare: x=x+1(ifHI) */
1797 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1798 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1799 M_CMP(s2, REG_ITMP3);*/
1800 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1802 /* branch if (x LE 1) */
1803 M_CMP_IMM(REG_ITMP1, 1);
1804 emit_ble(cd, iptr->dst.block);
1808 case ICMD_IF_LGE: /* ..., value ==> ... */
1810 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1811 s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1812 if (iptr->sx.val.l == 0) {
1813 /* if high word is greater or equal zero, the whole long is too */
1815 emit_bge(cd, iptr->dst.block);
1818 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1819 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1820 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1821 M_CMP(s1, REG_ITMP3);*/
1822 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1823 M_MOVGT_IMM(2, REG_ITMP1);
1824 M_MOVEQ_IMM(1, REG_ITMP1);
1826 /* low compare: x=x-1(ifLO) */
1827 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1828 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1829 M_CMP(s2, REG_ITMP3);*/
1830 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1832 /* branch if (x GE 1) */
1833 M_CMP_IMM(REG_ITMP1, 1);
1834 emit_bge(cd, iptr->dst.block);
1838 case ICMD_IF_LGT: /* ..., value ==> ... */
1840 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1841 s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1843 if (iptr->sx.val.l == 0) {
1844 /* if high word is greater than zero, the whole long is too */
1847 codegen_add_branch_ref(cd, iptr->dst.block);
1849 /* ... or high was zero and low is non zero (tricky!) */
1850 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1851 M_MOVLT_IMM(1, REG_ITMP3);
1852 M_ORR_S(REG_ITMP3, s2, REG_ITMP3);
1854 codegen_add_branch_ref(cd, iptr->dst.block);
1858 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1859 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1860 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1861 M_CMP(s1, REG_ITMP3);*/
1862 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1863 M_MOVGT_IMM(2, REG_ITMP1);
1864 M_MOVEQ_IMM(1, REG_ITMP1);
1866 /* low compare: x=x+1(ifHI) */
1867 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1868 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1869 M_CMP(s2, REG_ITMP3);*/
1870 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1872 /* branch if (x GT 1) */
1873 M_CMP_IMM(REG_ITMP1, 1);
1874 emit_bgt(cd, iptr->dst.block);
1880 case ICMD_IF_LNE: /* ..., value ==> ... */
1882 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1883 s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1884 if (iptr->sx.val.l == 0) {
1885 M_ORR_S(s1, s2, REG_ITMP3);
1888 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1889 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1890 M_CMP(s1, REG_ITMP3);*/
1891 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1892 M_CMPEQ(s2, REG_ITMP3);
1894 emit_bne(cd, iptr->dst.block);
1897 case ICMD_IF_ICMPEQ: /* ..., value, value ==> ... */
1898 case ICMD_IF_ICMPNE:
1899 case ICMD_IF_ICMPLT:
1900 case ICMD_IF_ICMPLE:
1901 case ICMD_IF_ICMPGT:
1902 case ICMD_IF_ICMPGE:
1904 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1905 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1907 emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ICMPEQ, BRANCH_OPT_NONE);
1910 case ICMD_IF_ACMPEQ: /* ..., value, value ==> ... */
1911 case ICMD_IF_ACMPNE:
1913 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1914 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1916 emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ACMPEQ, BRANCH_OPT_NONE);
1919 case ICMD_IF_LCMPEQ: /* ..., value, value ==> ... */
1920 /* op1 = target JavaVM pc */
1922 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1923 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1926 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1927 s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1930 emit_beq(cd, iptr->dst.block);
1933 case ICMD_IF_LCMPNE: /* ..., value, value ==> ... */
1934 /* op1 = target JavaVM pc */
1936 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1937 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1940 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1941 s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1944 emit_bne(cd, iptr->dst.block);
1947 case ICMD_IF_LCMPLT: /* ..., value, value ==> ... */
1948 /* op1 = target JavaVM pc */
1950 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1951 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1952 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1954 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1955 M_MOVGT_IMM(2, REG_ITMP3);
1956 M_MOVEQ_IMM(1, REG_ITMP3);
1958 /* low compare: x=x-1(ifLO) */
1959 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1960 s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1962 M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1964 /* branch if (x LT 1) */
1965 M_CMP_IMM(REG_ITMP3, 1);
1966 emit_blt(cd, iptr->dst.block);
1969 case ICMD_IF_LCMPLE: /* ..., value, value ==> ... */
1970 /* op1 = target JavaVM pc */
1972 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1973 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1974 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1976 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1977 M_MOVGT_IMM(2, REG_ITMP3);
1978 M_MOVEQ_IMM(1, REG_ITMP3);
1980 /* low compare: x=x-1(ifLO) */
1981 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1982 s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1984 M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1986 /* branch if (x LE 1) */
1987 M_CMP_IMM(REG_ITMP3, 1);
1988 emit_ble(cd, iptr->dst.block);
1991 case ICMD_IF_LCMPGT: /* ..., value, value ==> ... */
1992 /* op1 = target JavaVM pc */
1994 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1995 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1996 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1998 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1999 M_MOVGT_IMM(2, REG_ITMP3);
2000 M_MOVEQ_IMM(1, REG_ITMP3);
2002 /* low compare: x=x-1(ifLO) */
2003 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2004 s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2006 M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
2008 /* branch if (x GT 1) */
2009 M_CMP_IMM(REG_ITMP3, 1);
2010 emit_bgt(cd, iptr->dst.block);
2013 case ICMD_IF_LCMPGE: /* ..., value, value ==> ... */
2014 /* op1 = target JavaVM pc */
2016 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
2017 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2018 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2020 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
2021 M_MOVGT_IMM(2, REG_ITMP3);
2022 M_MOVEQ_IMM(1, REG_ITMP3);
2024 /* low compare: x=x-1(ifLO) */
2025 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2026 s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2028 M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
2030 /* branch if (x GE 1) */
2031 M_CMP_IMM(REG_ITMP3, 1);
2032 emit_bge(cd, iptr->dst.block);
2035 case ICMD_TABLESWITCH: /* ..., index ==> ... */
2038 branch_target_t *table;
2040 table = iptr->dst.table;
2042 l = iptr->sx.s23.s2.tablelow;
2043 i = iptr->sx.s23.s3.tablehigh;
2045 /* calculate new index (index - low) */
2046 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2048 M_INTMOVE(s1, REG_ITMP1);
2049 } else if (IS_IMM(l)) {
2050 M_SUB_IMM(REG_ITMP1, s1, l);
2052 ICONST(REG_ITMP2, l);
2053 M_SUB(REG_ITMP1, s1, REG_ITMP2);
2056 /* range check (index <= high-low) */
2058 M_COMPARE(REG_ITMP1, i-1);
2059 emit_bugt(cd, table[0].block);
2061 /* build jump table top down and use address of lowest entry */
2066 dseg_add_target(cd, table->block);
2071 /* length of dataseg after last dseg_add_target is used by load */
2072 /* TODO: this loads from data-segment */
2073 M_ADD(REG_ITMP2, REG_PV, REG_LSL(REG_ITMP1, 2));
2074 M_LDR(REG_PC, REG_ITMP2, -(cd->dseglen));
2077 case ICMD_LOOKUPSWITCH: /* ..., key ==> ... */
2080 lookup_target_t *lookup;
2082 lookup = iptr->dst.lookup;
2084 i = iptr->sx.s23.s2.lookupcount;
2087 MCODECHECK((i<<2)+8);
2088 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2091 M_COMPARE(s1, lookup->value);
2092 emit_beq(cd, lookup->target.block);
2096 /* default branch */
2097 emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2101 case ICMD_FRETURN: /* ..., retvalue ==> ... */
2103 #if !defined(ENABLE_SOFTFLOAT)
2104 REPLACEMENT_POINT_RETURN(cd, iptr);
2105 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2106 M_CAST_F2I(s1, REG_RESULT);
2107 goto ICMD_RETURN_do;
2110 case ICMD_IRETURN: /* ..., retvalue ==> ... */
2112 REPLACEMENT_POINT_RETURN(cd, iptr);
2113 s1 = emit_load_s1(jd, iptr, REG_RESULT);
2114 M_INTMOVE(s1, REG_RESULT);
2115 goto ICMD_RETURN_do;
2117 case ICMD_DRETURN: /* ..., retvalue ==> ... */
2119 #if !defined(ENABLE_SOFTFLOAT)
2120 REPLACEMENT_POINT_RETURN(cd, iptr);
2121 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2122 M_CAST_D2L(s1, REG_RESULT_PACKED);
2123 goto ICMD_RETURN_do;
2126 case ICMD_LRETURN: /* ..., retvalue ==> ... */
2128 REPLACEMENT_POINT_RETURN(cd, iptr);
2129 s1 = emit_load_s1(jd, iptr, REG_RESULT_PACKED);
2130 M_LNGMOVE(s1, REG_RESULT_PACKED);
2131 goto ICMD_RETURN_do;
2133 case ICMD_ARETURN: /* ..., retvalue ==> ... */
2135 REPLACEMENT_POINT_RETURN(cd, iptr);
2136 s1 = emit_load_s1(jd, iptr, REG_RESULT);
2137 M_INTMOVE(s1, REG_RESULT);
2138 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2139 patcher_add_patch_ref(jd, PATCHER_resolve_class,
2140 iptr->sx.s23.s2.uc, 0);
2142 goto ICMD_RETURN_do;
2144 case ICMD_RETURN: /* ... ==> ... */
2146 REPLACEMENT_POINT_RETURN(cd, iptr);
2149 #if !defined(NDEBUG)
2150 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2151 emit_verbosecall_exit(jd);
2154 #if defined(ENABLE_THREADS)
2155 /* call monitorexit function */
2157 if (checksync && code_is_synchronized(code)) {
2158 /* stack offset for monitor argument */
2160 s1 = rd->memuse * 8;
2162 /* we need to save the proper return value */
2164 switch (iptr->opc) {
2168 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2170 M_STMFD(BITMASK_RESULT, REG_SP);
2175 M_LDR(REG_A0, REG_SP, s1);
2176 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
2177 JITCACHE_ADD_CACHED_REF(code,
2178 CRT_BUILTIN_FP, builtintable_get_internal(LOCK_monitor_exit),
2181 M_DSEG_BRANCH(disp);
2183 /* we no longer need PV here, no more loading */
2184 /*s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2185 M_RECOMPUTE_PV(s1);*/
2187 switch (iptr->opc) {
2191 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2193 M_LDMFD(BITMASK_RESULT, REG_SP);
2199 /* deallocate stackframe for spilled variables */
2201 if ((cd->stackframesize / 4 - savedregs_num) > 0)
2202 M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
2204 /* restore callee saved registers + do return */
2206 if (savedregs_bitmask) {
2207 if (!code_is_leafmethod(code)) {
2208 savedregs_bitmask &= ~(1<<REG_LR);
2209 savedregs_bitmask |= (1<<REG_PC);
2211 M_LDMFD(savedregs_bitmask, REG_SP);
2214 /* if LR was not on stack, we need to return manually */
2216 if (code_is_leafmethod(code))
2217 M_MOV(REG_PC, REG_LR);
2220 case ICMD_BUILTIN: /* ..., arg1, arg2, arg3 ==> ... */
2222 bte = iptr->sx.s23.s3.bte;
2224 goto ICMD_INVOKE_do;
2226 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ... */
2227 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2228 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer */
2229 case ICMD_INVOKEINTERFACE:
2231 REPLACEMENT_POINT_INVOKE(cd, iptr);
2233 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2235 um = iptr->sx.s23.s3.um;
2236 md = um->methodref->parseddesc.md;
2239 lm = iptr->sx.s23.s3.fmiref->p.method;
2241 md = lm->parseddesc;
2245 /* copy arguments to registers or stack location */
2247 s3 = md->paramcount;
2249 MCODECHECK((s3 << 1) + 64);
2251 for (s3 = s3 - 1; s3 >= 0; s3--) {
2252 var = VAR(iptr->sx.s23.s2.args[s3]);
2253 d = md->params[s3].regoff;
2255 if (var->flags & PREALLOC) /* argument was precolored? */
2258 /* TODO: document me */
2259 #if !defined(ENABLE_SOFTFLOAT)
2260 if (IS_INT_LNG_TYPE(var->type)) {
2261 #endif /* !defined(ENABLE_SOFTFLOAT) */
2262 if (!md->params[s3].inmemory) {
2263 s1 = emit_load(jd, iptr, var, d);
2265 if (IS_2_WORD_TYPE(var->type))
2271 if (IS_2_WORD_TYPE(var->type)) {
2272 s1 = emit_load(jd, iptr, var, REG_ITMP12_PACKED);
2273 M_LST(s1, REG_SP, d);
2276 s1 = emit_load(jd, iptr, var, REG_ITMP1);
2277 M_IST(s1, REG_SP, d);
2280 #if !defined(ENABLE_SOFTFLOAT)
2283 if (!md->params[s3].inmemory) {
2284 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2285 if (IS_2_WORD_TYPE(var->type))
2291 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2292 if (IS_2_WORD_TYPE(var->type))
2293 M_DST(s1, REG_SP, d);
2295 M_FST(s1, REG_SP, d);
2298 #endif /* !defined(ENABLE_SOFTFLOAT) */
2301 switch (iptr->opc) {
2304 if (bte->stub == NULL) {
2305 disp = dseg_add_functionptr(cd, bte->fp);
2307 disp = dseg_add_functionptr(cd, bte->stub);
2310 JITCACHE_ADD_CACHED_REF(code, CRT_BUILTIN, bte, disp);
2312 M_DSEG_LOAD(REG_PV, disp); /* pointer to built-in-function */
2314 /* generate the actual call */
2316 M_MOV(REG_LR, REG_PC);
2317 M_MOV(REG_PC, REG_PV);
2318 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2322 case ICMD_INVOKESPECIAL:
2323 emit_nullpointer_check(cd, iptr, REG_A0);
2326 case ICMD_INVOKESTATIC:
2328 disp = dseg_add_unique_address(cd, NULL);
2330 patcher_add_patch_ref(jd, PATCHER_invokestatic_special,
2335 disp = dseg_add_address(cd, lm->stubroutine);
2336 JITCACHE_ADD_CACHED_REF(code, CRT_METHODINFO_STUBROUTINE, lm, disp);
2339 M_DSEG_LOAD(REG_PV, disp); /* Pointer to method */
2341 /* generate the actual call */
2343 M_MOV(REG_LR, REG_PC);
2344 M_MOV(REG_PC, REG_PV);
2345 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2349 case ICMD_INVOKEVIRTUAL:
2352 patcher_add_patch_ref(jd, PATCHER_invokevirtual, um, 0);
2357 s1 = OFFSET(vftbl_t, table[0]) +
2358 sizeof(methodptr) * lm->vftblindex;
2361 /* implicit null-pointer check */
2362 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2363 OFFSET(java_object_t, vftbl));
2364 M_LDR_INTERN(REG_PV, REG_METHODPTR, s1);
2365 /* generate the actual call */
2367 M_MOV(REG_LR, REG_PC);
2368 M_MOV(REG_PC, REG_PV);
2369 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2373 case ICMD_INVOKEINTERFACE:
2375 patcher_add_patch_ref(jd, PATCHER_invokeinterface, um, 0);
2381 s1 = OFFSET(vftbl_t, interfacetable[0]) -
2382 sizeof(methodptr*) * lm->clazz->index;
2383 s2 = sizeof(methodptr) * (lm - lm->clazz->methods);
2386 /* implicit null-pointer check */
2387 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2388 OFFSET(java_object_t, vftbl));
2389 M_LDR_INTERN(REG_METHODPTR, REG_METHODPTR, s1);
2391 M_LDR_INTERN(REG_PV, REG_METHODPTR, s2);
2392 JITCACHE_ADD_CACHED_REF_MD_JD(jd, CRT_METHODINFO_METHODOFFSET, 1, lm);
2394 /* generate the actual call */
2396 M_MOV(REG_LR, REG_PC);
2397 M_MOV(REG_PC, REG_PV);
2398 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2403 /* store size of call code in replacement point */
2404 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2406 /* store return value */
2408 d = md->returntype.type;
2410 #if !defined(__SOFTFP__)
2411 /* TODO: this is only a hack, since we use R0/R1 for float
2412 return! this depends on gcc; it is independent from
2413 our ENABLE_SOFTFLOAT define */
2414 if (iptr->opc == ICMD_BUILTIN && d != TYPE_VOID && IS_FLT_DBL_TYPE(d)) {
2415 #if 0 && !defined(NDEBUG)
2416 dolog("BUILTIN that returns float or double (%s.%s)", m->clazz->name->text, m->name->text);
2418 /* we cannot use this macro, since it is not defined
2419 in ENABLE_SOFTFLOAT M_CAST_FLT_TO_INT_TYPED(d,
2420 REG_FRESULT, REG_RESULT_TYPED(d)); */
2421 if (IS_2_WORD_TYPE(d)) {
2422 DCD(0xed2d8102); /* stfd f0, [sp, #-8]! */
2423 M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
2425 DCD(0xed2d0101); /* stfs f0, [sp, #-4]!*/
2426 M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
2431 if (d != TYPE_VOID) {
2432 #if !defined(ENABLE_SOFTFLOAT)
2433 if (IS_INT_LNG_TYPE(d)) {
2434 #endif /* !defined(ENABLE_SOFTFLOAT) */
2435 if (IS_2_WORD_TYPE(d)) {
2436 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
2437 M_LNGMOVE(REG_RESULT_PACKED, s1);
2440 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2441 M_INTMOVE(REG_RESULT, s1);
2444 #if !defined(ENABLE_SOFTFLOAT)
2446 s1 = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
2447 if (IS_2_WORD_TYPE(d))
2448 M_CAST_L2D(REG_RESULT_PACKED, s1);
2450 M_CAST_I2F(REG_RESULT, s1);
2452 #endif /* !defined(ENABLE_SOFTFLOAT) */
2454 emit_store_dst(jd, iptr, s1);
2458 case ICMD_CHECKCAST: /* ..., objectref ==> ..., objectref */
2460 if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2461 /* object type cast-check */
2466 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2471 super = iptr->sx.s23.s3.c.cls;
2472 superindex = super->index;
2475 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2477 /* if class is not resolved, check which code to call */
2479 if (super == NULL) {
2481 emit_label_beq(cd, BRANCH_LABEL_1);
2483 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2484 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2485 iptr->sx.s23.s3.c.ref, disp);
2487 M_DSEG_LOAD(REG_ITMP2, disp);
2488 disp = dseg_add_s4(cd, ACC_INTERFACE);
2489 M_DSEG_LOAD(REG_ITMP3, disp);
2490 M_TST(REG_ITMP2, REG_ITMP3);
2491 emit_label_beq(cd, BRANCH_LABEL_2);
2494 /* interface checkcast code */
2496 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2497 if ((super == NULL) || !IS_IMM(superindex)) {
2498 disp = dseg_add_unique_s4(cd, superindex);
2500 if (super == NULL) {
2501 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2502 iptr->sx.s23.s3.c.ref, disp);
2506 JITCACHE_ADD_CACHED_REF_JD(jd, CRT_CLASSINFO_INDEX, super, disp);
2509 emit_label_beq(cd, BRANCH_LABEL_3);
2512 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2513 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2515 /* we put unresolved or non-immediate superindices onto dseg */
2516 if ((super == NULL) || !IS_IMM(superindex)) {
2517 /* disp was computed before we added the patcher */
2518 M_DSEG_LOAD(REG_ITMP2, disp);
2519 M_CMP(REG_ITMP3, REG_ITMP2);
2521 assert(IS_IMM(superindex));
2522 M_CMP_IMM(REG_ITMP3, superindex);
2525 emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2527 /* if we loaded the superindex out of the dseg above, we do
2528 things differently here! */
2529 if ((super == NULL) || !IS_IMM(superindex)) {
2531 M_LDR_INTERN(REG_ITMP3, s1, OFFSET(java_object_t, vftbl));
2533 /* this assumes something */
2534 assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2536 /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2537 assert(sizeof(methodptr*) == 4);
2538 M_SUB(REG_ITMP2, REG_ITMP3, REG_LSL(REG_ITMP2, 2));
2544 s2 = OFFSET(vftbl_t, interfacetable[0]) -
2545 superindex * sizeof(methodptr*);
2549 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, s2);
2550 M_TST(REG_ITMP3, REG_ITMP3);
2551 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2554 emit_label_br(cd, BRANCH_LABEL_4);
2556 emit_label(cd, BRANCH_LABEL_3);
2559 /* class checkcast code */
2561 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2562 if (super == NULL) {
2563 emit_label(cd, BRANCH_LABEL_2);
2565 disp = dseg_add_unique_address(cd, NULL);
2567 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2568 iptr->sx.s23.s3.c.ref,
2572 disp = dseg_add_address(cd, super->vftbl);
2573 JITCACHE_ADD_CACHED_REF(code, CRT_CLASSINFO_VFTBL, super, disp);
2575 emit_label_beq(cd, BRANCH_LABEL_5);
2578 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2579 M_DSEG_LOAD(REG_ITMP3, disp);
2581 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2582 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, baseval));
2583 M_SUB(REG_ITMP2, REG_ITMP2, REG_ITMP3);
2584 M_DSEG_LOAD(REG_ITMP3, disp);
2585 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
2587 M_CMP(REG_ITMP2, REG_ITMP3);
2588 emit_classcast_check(cd, iptr, BRANCH_UGT, 0, s1);
2591 emit_label(cd, BRANCH_LABEL_5);
2594 if (super == NULL) {
2595 emit_label(cd, BRANCH_LABEL_1);
2596 emit_label(cd, BRANCH_LABEL_4);
2599 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
2602 /* array type cast-check */
2604 s1 = emit_load_s1(jd, iptr, REG_A0);
2605 M_INTMOVE(s1, REG_A0);
2607 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2608 disp = dseg_add_unique_address(cd, NULL);
2610 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2611 iptr->sx.s23.s3.c.ref,
2616 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2617 JITCACHE_ADD_CACHED_REF(code, CRT_CLASSINFO, iptr->sx.s23.s3.c.cls, disp);
2620 M_DSEG_LOAD(REG_A1, disp);
2621 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2622 JITCACHE_ADD_CACHED_REF(code, CRT_BUILTIN, builtintable_get_internal(BUILTIN_arraycheckcast), disp);
2623 M_DSEG_BRANCH(disp);
2626 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2627 M_RECOMPUTE_PV(disp);
2629 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2630 M_TST(REG_RESULT, REG_RESULT);
2631 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2633 d = codegen_reg_of_dst(jd, iptr, s1);
2637 emit_store_dst(jd, iptr, d);
2640 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult */
2646 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2651 super = iptr->sx.s23.s3.c.cls;
2652 superindex = super->index;
2655 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2656 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2659 M_MOV(REG_ITMP1, s1);
2663 /* if class is not resolved, check which code to call */
2665 if (super == NULL) {
2669 emit_label_beq(cd, BRANCH_LABEL_1);
2671 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2672 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2673 iptr->sx.s23.s3.c.ref, disp);
2675 M_DSEG_LOAD(REG_ITMP2, disp);
2676 disp = dseg_add_s4(cd, ACC_INTERFACE);
2677 M_DSEG_LOAD(REG_ITMP3, disp);
2678 M_TST(REG_ITMP2, REG_ITMP3);
2679 emit_label_beq(cd, BRANCH_LABEL_2);
2682 /* interface checkcast code */
2684 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2685 if ((super == NULL) || !IS_IMM(superindex)) {
2686 disp = dseg_add_unique_s4(cd, superindex);
2688 if (super == NULL) {
2689 /* If d == REG_ITMP2, then it's destroyed in check
2694 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2695 iptr->sx.s23.s3.c.ref, disp);
2698 /* TODO: Not needed?
2699 JITCACHE_ADD_CACHED_REF(code, CRT_CLASSINFO_INDEX, super, disp);
2703 emit_label_beq(cd, BRANCH_LABEL_3);
2706 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2707 M_LDR_INTERN(REG_ITMP3,
2708 REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2710 /* we put unresolved or non-immediate superindices onto dseg
2711 and do things slightly different */
2712 if ((super == NULL) || !IS_IMM(superindex)) {
2713 /* disp was computed before we added the patcher */
2714 M_DSEG_LOAD(REG_ITMP2, disp);
2715 M_CMP(REG_ITMP3, REG_ITMP2);
2717 if (d == REG_ITMP2) {
2724 /* this assumes something */
2725 assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2727 /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2728 assert(sizeof(methodptr*) == 4);
2729 M_SUB(REG_ITMP1, REG_ITMP1, REG_LSL(REG_ITMP2, 2));
2731 if (d == REG_ITMP2) {
2738 assert(IS_IMM(superindex));
2739 M_CMP_IMM(REG_ITMP3, superindex);
2743 s2 = OFFSET(vftbl_t, interfacetable[0]) -
2744 superindex * sizeof(methodptr*);
2748 M_LDR_INTERN(REG_ITMP3, REG_ITMP1, s2);
2749 M_TST(REG_ITMP3, REG_ITMP3);
2753 emit_label_br(cd, BRANCH_LABEL_4);
2755 emit_label(cd, BRANCH_LABEL_3);
2758 /* class checkcast code */
2760 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2761 if (super == NULL) {
2762 emit_label(cd, BRANCH_LABEL_2);
2764 disp = dseg_add_unique_address(cd, NULL);
2766 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2767 iptr->sx.s23.s3.c.ref, disp);
2770 disp = dseg_add_address(cd, super->vftbl);
2771 JITCACHE_ADD_CACHED_REF(code, CRT_CLASSINFO_VFTBL, super, disp);
2775 emit_label_beq(cd, BRANCH_LABEL_5);
2778 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2779 M_DSEG_LOAD(REG_ITMP2, disp);
2781 M_LDR_INTERN(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2782 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2783 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2785 M_SUB(REG_ITMP1, REG_ITMP1, REG_ITMP3);
2786 M_CMP(REG_ITMP1, REG_ITMP2);
2787 /* If d == REG_ITMP2, then it's destroyed */
2793 emit_label(cd, BRANCH_LABEL_5);
2796 if (super == NULL) {
2797 emit_label(cd, BRANCH_LABEL_1);
2798 emit_label(cd, BRANCH_LABEL_4);
2803 emit_store_dst(jd, iptr, d);
2806 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref */
2808 /* copy sizes to stack if necessary */
2810 MCODECHECK((iptr->s1.argcount << 1) + 64);
2812 for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2814 var = VAR(iptr->sx.s23.s2.args[s1]);
2816 /* copy SAVEDVAR sizes to stack */
2818 if (!(var->flags & PREALLOC)) {
2819 s2 = emit_load(jd, iptr, var, REG_ITMP1);
2820 M_STR(s2, REG_SP, s1 * 4);
2824 /* a0 = dimension count */
2826 assert(IS_IMM(iptr->s1.argcount));
2827 M_MOV_IMM(REG_A0, iptr->s1.argcount);
2829 /* is patcher function set? */
2831 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2832 disp = dseg_add_unique_address(cd, NULL);
2834 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2835 iptr->sx.s23.s3.c.ref, disp);
2839 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2840 JITCACHE_ADD_CACHED_REF(code, CRT_CLASSINFO, iptr->sx.s23.s3.c.cls, disp);
2843 /* a1 = arraydescriptor */
2845 M_DSEG_LOAD(REG_A1, disp);
2847 /* a2 = pointer to dimensions = stack pointer */
2849 M_INTMOVE(REG_SP, REG_A2);
2851 /* call builtin_multianewarray here */
2853 disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2855 * For some unknown reason this causes an illegal instruction.
2856 * JITCACHE_ADD_CACHED_REF(code, CRT_BUILTIN, builtintable_get_internal(BUILTIN_multianewarray), disp);
2859 M_DSEG_BRANCH(disp);
2863 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2866 /* check for exception before result assignment */
2868 emit_exception_check(cd, iptr);
2872 d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2873 M_INTMOVE(REG_RESULT, d);
2874 emit_store_dst(jd, iptr, d);
2877 case ICMD_CHECKNULL: /* ..., objectref ==> ..., objectref */
2879 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2880 emit_nullpointer_check(cd, iptr, s1);
2884 exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2887 } /* the big switch */
2889 } /* for all instructions */
2891 } /* for all basic blocks */
2893 /* generate traps */
2895 emit_patcher_traps(jd);
2897 /* everything's ok */
2903 /* codegen_emit_stub_native ****************************************************
2905 Emits a stub routine which calls a native method.
2907 *******************************************************************************/
2909 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f, int skipparams)
2920 /* get required compiler data */
2926 /* initialize variables */
2930 /* calculate stackframe size */
2932 cd->stackframesize =
2933 4 + /* return address */
2934 sizeof(stackframeinfo_t) + /* stackframeinfo */
2935 sizeof(localref_table) + /* localref_table */
2936 nmd->memuse * 4; /* stack arguments */
2938 /* align stack to 8-byte */
2940 cd->stackframesize = (cd->stackframesize + 4) & ~4;
2942 /* create method header */
2944 (void) dseg_add_unique_address(cd, code); /* CodeinfoPointer */
2945 (void) dseg_add_unique_s4(cd, cd->stackframesize); /* FrameSize */
2946 (void) dseg_add_unique_s4(cd, 0); /* IsLeaf */
2947 (void) dseg_add_unique_s4(cd, 0); /* IntSave */
2948 (void) dseg_add_unique_s4(cd, 0); /* FltSave */
2950 /* generate stub code */
2952 M_STMFD(1<<REG_LR, REG_SP);
2953 M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
2955 #if !defined(NDEBUG)
2956 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2957 emit_verbosecall_enter(jd);
2960 #if defined(ENABLE_GC_CACAO)
2961 /* Save callee saved integer registers in stackframeinfo (GC may
2962 need to recover them during a collection). */
2964 disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo_t) +
2965 OFFSET(stackframeinfo_t, intregs);
2967 for (i = 0; i < INT_SAV_CNT; i++)
2968 M_STR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
2971 /* Save integer and float argument registers (these are 4
2972 registers, stack is 8-byte aligned). */
2974 M_STMFD(BITMASK_ARGS, REG_SP);
2975 /* TODO: floating point */
2977 /* create native stackframe info */
2979 M_ADD_IMM(REG_A0, REG_SP, 4*4);
2980 M_MOV(REG_A1, REG_PV);
2981 disp = dseg_add_functionptr(cd, codegen_start_native_call);
2982 M_DSEG_BRANCH(disp);
2986 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2989 /* remember class argument */
2991 if (m->flags & ACC_STATIC)
2992 M_MOV(REG_ITMP3, REG_RESULT);
2994 /* Restore integer and float argument registers (these are 4
2995 registers, stack is 8-byte aligned). */
2997 M_LDMFD(BITMASK_ARGS, REG_SP);
2998 /* TODO: floating point */
3000 /* copy or spill arguments to new locations */
3001 /* ATTENTION: the ARM has only integer argument registers! */
3003 for (i = md->paramcount - 1, j = i + skipparams; i >= 0; i--, j--) {
3004 t = md->paramtypes[i].type;
3006 if (!md->params[i].inmemory) {
3007 s1 = md->params[i].regoff;
3008 s2 = nmd->params[j].regoff;
3010 if (!nmd->params[j].inmemory) {
3011 #if !defined(__ARM_EABI__)
3012 SPLIT_OPEN(t, s2, REG_ITMP1);
3015 if (IS_2_WORD_TYPE(t))
3020 #if !defined(__ARM_EABI__)
3021 SPLIT_STORE_AND_CLOSE(t, s2, 0);
3025 if (IS_2_WORD_TYPE(t))
3026 M_LST(s1, REG_SP, s2);
3028 M_IST(s1, REG_SP, s2);
3032 s1 = md->params[i].regoff + cd->stackframesize;
3033 s2 = nmd->params[j].regoff;
3035 if (IS_2_WORD_TYPE(t)) {
3036 M_LLD(REG_ITMP12_PACKED, REG_SP, s1);
3037 M_LST(REG_ITMP12_PACKED, REG_SP, s2);
3040 M_ILD(REG_ITMP1, REG_SP, s1);
3041 M_IST(REG_ITMP1, REG_SP, s2);
3046 /* Handle native Java methods. */
3048 if (m->flags & ACC_NATIVE) {
3049 /* put class into second argument register */
3051 if (m->flags & ACC_STATIC)
3052 M_MOV(REG_A1, REG_ITMP3);
3054 /* put env into first argument register */
3056 disp = dseg_add_address(cd, VM_get_jnienv());
3057 M_DSEG_LOAD(REG_A0, disp);
3060 /* Call the native function. */
3062 disp = dseg_add_functionptr(cd, f);
3063 M_DSEG_BRANCH(disp);
3066 /* TODO: this is only needed because of the tracer ... do we
3069 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3072 #if !defined(__SOFTFP__)
3073 /* TODO: this is only a hack, since we use R0/R1 for float return! */
3074 /* this depends on gcc; it is independent from our ENABLE_SOFTFLOAT define */
3075 if (md->returntype.type != TYPE_VOID && IS_FLT_DBL_TYPE(md->returntype.type)) {
3076 #if 0 && !defined(NDEBUG)
3077 dolog("NATIVESTUB that returns float or double (%s.%s)", m->clazz->name->text, m->name->text);
3079 /* we cannot use this macro, since it is not defined in ENABLE_SOFTFLOAT */
3080 /* M_CAST_FLT_TO_INT_TYPED(md->returntype.type, REG_FRESULT, REG_RESULT_TYPED(md->returntype.type)); */
3081 if (IS_2_WORD_TYPE(md->returntype.type)) {
3082 DCD(0xed2d8102); /* stfd f0, [sp, #-8]! */
3083 M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
3085 DCD(0xed2d0101); /* stfs f0, [sp, #-4]!*/
3086 M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
3091 #if !defined(NDEBUG)
3092 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3093 emit_verbosecall_exit(jd);
3096 /* remove native stackframe info */
3097 /* TODO: improve this store/load */
3099 M_STMFD(BITMASK_RESULT, REG_SP);
3101 M_ADD_IMM(REG_A0, REG_SP, 2*4);
3102 M_MOV(REG_A1, REG_PV);
3103 disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3104 M_DSEG_BRANCH(disp);
3105 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3108 M_MOV(REG_ITMP1_XPTR, REG_RESULT);
3109 M_LDMFD(BITMASK_RESULT, REG_SP);
3111 #if defined(ENABLE_GC_CACAO)
3112 /* restore callee saved int registers from stackframeinfo (GC might have */
3113 /* modified them during a collection). */
3115 disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo_t) +
3116 OFFSET(stackframeinfo_t, intregs);
3118 for (i = 0; i < INT_SAV_CNT; i++)
3119 M_LDR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
3122 /* finish stub code, but do not yet return to caller */
3124 M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
3125 M_LDMFD(1<<REG_LR, REG_SP);
3127 /* check for exception */
3129 M_TST(REG_ITMP1_XPTR, REG_ITMP1_XPTR);
3130 M_MOVEQ(REG_LR, REG_PC); /* if no exception, return to caller */
3132 /* handle exception here */
3134 M_SUB_IMM(REG_ITMP2_XPC, REG_LR, 4);/* move fault address into xpc */
3136 disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3137 M_DSEG_LOAD(REG_ITMP3, disp); /* load asm exception handler address */
3138 M_MOV(REG_PC, REG_ITMP3); /* jump to asm exception handler */
3142 /* asm_debug *******************************************************************
3146 *******************************************************************************/
3148 void asm_debug(int a1, int a2, int a3, int a4)
3150 printf("===> i am going to exit after this debugging message!\n");
3151 printf("got asm_debug(%p, %p, %p, %p)\n",(void*)a1,(void*)a2,(void*)a3,(void*)a4);
3152 vm_abort("leave you now");
3157 * These are local overrides for various environment variables in Emacs.
3158 * Please do not remove this and leave it at the end of the file, where
3159 * Emacs will automagically detect them.
3160 * ---------------------------------------------------------------------
3163 * indent-tabs-mode: t
3167 * vim:noexpandtab:sw=4:ts=4: