1 /* src/vm/jit/arm/codegen.c - machine code generator for Arm
3 Copyright (C) 1996-2005, 2006, 2007 R. Grafl, A. Krall, C. Kruegel,
4 C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
5 E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
6 J. Wenninger, Institut f. Computersprachen - TU Wien
8 This file is part of CACAO.
10 This program is free software; you can redistribute it and/or
11 modify it under the terms of the GNU General Public License as
12 published by the Free Software Foundation; either version 2, or (at
13 your option) any later version.
15 This program is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
25 $Id: codegen.c 8299 2007-08-13 08:41:18Z michi $
39 #include "vm/jit/arm/arch.h"
40 #include "vm/jit/arm/codegen.h"
42 #include "mm/memory.h"
44 #include "native/localref.h"
45 #include "native/native.h"
47 #include "threads/lock-common.h"
49 #include "vm/builtin.h"
50 #include "vm/exceptions.h"
51 #include "vm/global.h"
54 #include "vm/jit/abi.h"
55 #include "vm/jit/asmpart.h"
56 #include "vm/jit/codegen-common.h"
57 #include "vm/jit/dseg.h"
58 #include "vm/jit/emit-common.h"
59 #include "vm/jit/jit.h"
60 #include "vm/jit/md.h"
61 #include "vm/jit/methodheader.h"
62 #include "vm/jit/parse.h"
63 #include "vm/jit/patcher-common.h"
64 #include "vm/jit/reg.h"
66 #if defined(ENABLE_LSRA)
67 #include "vm/jit/allocator/lsra.h"
70 #include "vmcore/loader.h"
71 #include "vmcore/options.h"
74 /* codegen_emit ****************************************************************
76 Generates machine code.
78 *******************************************************************************/
80 bool codegen_emit(jitdata *jd)
99 methodinfo *lm; /* local methodinfo for ICMD_INVOKE* */
100 unresolved_method *um;
101 builtintable_entry *bte;
104 unresolved_field *uf;
108 /* get required compiler data */
115 /* prevent compiler warnings */
123 /* space to save used callee saved registers */
125 savedregs_num = (jd->isleafmethod) ? 0 : 1; /* space to save the LR */
126 savedregs_num += (INT_SAV_CNT - rd->savintreguse);
127 /*savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);*/
128 assert((FLT_SAV_CNT - rd->savfltreguse) == 0);
130 spilledregs_num = rd->memuse;
132 #if defined(ENABLE_THREADS) /* space to save argument of monitor_enter */
133 if (checksync && (m->flags & ACC_SYNCHRONIZED))
137 cd->stackframesize = spilledregs_num * 8 + savedregs_num * 4;
139 /* XXX QUICK FIX: We shouldn't align the stack in Java code, but
140 only in native stubs. */
141 /* align stack to 8-byte */
143 cd->stackframesize = (cd->stackframesize + 4) & ~4;
145 /* SECTION: Method Header */
146 /* create method header */
148 (void) dseg_add_unique_address(cd, code); /* CodeinfoPointer */
149 (void) dseg_add_unique_s4(cd, cd->stackframesize); /* FrameSize */
151 #if defined(ENABLE_THREADS)
152 /* IsSync contains the offset relative to the stack pointer for the
153 argument of monitor_exit used in the exception handler. Since the
154 offset could be zero and give a wrong meaning of the flag it is
158 if (checksync && (m->flags & ACC_SYNCHRONIZED))
159 (void) dseg_add_unique_s4(cd, rd->memuse * 8 + 4);/* IsSync */
162 (void) dseg_add_unique_s4(cd, 0); /* IsSync */
164 (void) dseg_add_unique_s4(cd, jd->isleafmethod); /* IsLeaf */
165 (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
166 (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
167 (void) dseg_addlinenumbertablesize(cd);
168 (void) dseg_add_unique_s4(cd, jd->exceptiontablelength); /* ExTableSize */
170 /* create exception table */
172 for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
173 dseg_add_target(cd, ex->start);
174 dseg_add_target(cd, ex->end);
175 dseg_add_target(cd, ex->handler);
176 (void) dseg_add_unique_address(cd, ex->catchtype.any);
179 /* save return address and used callee saved registers */
181 savedregs_bitmask = 0;
183 if (!jd->isleafmethod)
184 savedregs_bitmask = (1<<REG_LR);
186 for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--)
187 savedregs_bitmask |= (1<<(rd->savintregs[i]));
190 for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
191 log_text("!!! CODEGEN: floating-point callee saved registers are not saved to stack (SEVERE! STACK IS MESSED UP!)");
192 /* TODO: floating-point */
196 if (savedregs_bitmask)
197 M_STMFD(savedregs_bitmask, REG_SP);
199 /* create additional stack frame for spilled variables (if necessary) */
201 if ((cd->stackframesize / 4 - savedregs_num) > 0)
202 M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
204 /* take arguments out of register or stack frame */
207 for (i = 0, len = 0; i < md->paramcount; i++) {
208 s1 = md->params[i].regoff;
209 t = md->paramtypes[i].type;
211 varindex = jd->local_map[len * 5 + t];
213 len += (IS_2_WORD_TYPE(t)) ? 2 : 1; /* 2 word type arguments */
215 if (varindex == UNUSED)
220 /* ATTENTION: we use interger registers for all arguments (even float) */
221 #if !defined(ENABLE_SOFTFLOAT)
222 if (IS_INT_LNG_TYPE(t)) {
224 if (!md->params[i].inmemory) {
225 if (!(var->flags & INMEMORY)) {
226 if (IS_2_WORD_TYPE(t))
227 M_LNGMOVE(s1, var->vv.regoff);
229 M_INTMOVE(s1, var->vv.regoff);
232 if (IS_2_WORD_TYPE(t))
233 M_LST(s1, REG_SP, var->vv.regoff);
235 M_IST(s1, REG_SP, var->vv.regoff);
238 else { /* stack arguments */
239 if (!(var->flags & INMEMORY)) { /* stack arg -> register */
240 if (IS_2_WORD_TYPE(t))
241 M_LLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
243 M_ILD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
245 else { /* stack arg -> spilled */
246 /* Reuse Memory Position on Caller Stack */
247 var->vv.regoff = cd->stackframesize + s1;
250 #if !defined(ENABLE_SOFTFLOAT)
253 if (!md->params[i].inmemory) {
254 if (!(var->flags & INMEMORY)) {
255 M_CAST_INT_TO_FLT_TYPED(t, s1, var->vv.regoff);
258 if (IS_2_WORD_TYPE(t))
259 M_LST(s1, REG_SP, var->vv.regoff);
261 M_IST(s1, REG_SP, var->vv.regoff);
265 if (!(var->flags & INMEMORY)) {
266 if (IS_2_WORD_TYPE(t))
267 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
269 M_FLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
272 /* Reuse Memory Position on Caller Stack */
273 var->vv.regoff = cd->stackframesize + s1;
277 #endif /* !defined(ENABLE_SOFTFLOAT) */
280 #if defined(ENABLE_THREADS)
281 /* call monitorenter function */
283 if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
284 /* stack offset for monitor argument */
288 # if !defined(NDEBUG)
289 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
290 M_STMFD(BITMASK_ARGS, REG_SP);
295 /* get the correct lock object */
297 if (m->flags & ACC_STATIC) {
298 disp = dseg_add_address(cd, &m->class->object.header);
299 M_DSEG_LOAD(REG_A0, disp);
302 emit_nullpointer_check_force(cd, iptr, REG_A0);
305 M_STR(REG_A0, REG_SP, s1);
306 disp = dseg_add_functionptr(cd, LOCK_monitor_enter);
308 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
311 # if !defined(NDEBUG)
312 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
313 M_LDMFD(BITMASK_ARGS, REG_SP);
319 /* call trace function */
321 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
322 emit_verbosecall_enter(jd);
325 /* end of header generation */
327 /* create replacement points */
328 REPLACEMENT_POINTS_INIT(cd, jd);
330 /* SECTION: ICMD Code Generation */
331 /* for all basic blocks */
333 for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
335 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
337 /* is this basic block reached? */
339 if (bptr->flags < BBREACHED)
342 /* branch resolving */
344 codegen_resolve_branchrefs(cd, bptr);
346 /* handle replacement points */
347 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
349 /* copy interface registers to their destination */
355 #if defined(ENABLE_LSRA)
359 var = VAR(bptr->invars[len]);
360 if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
361 if (!(var->flags & INMEMORY))
365 M_INTMOVE(REG_ITMP1, d);
366 emit_store(jd, NULL, var, d);
373 var = VAR(bptr->invars[len]);
375 if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
376 d = codegen_reg_of_var(0, var, REG_ITMP1);
377 M_INTMOVE(REG_ITMP1, d);
378 emit_store(jd, NULL, var, d);
381 assert((var->flags & INOUT));
384 #if defined(ENABLE_LSRA)
388 /* for all instructions */
391 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
393 /* add line number */
394 if (iptr->line != currentline) {
395 dseg_addlinenumber(cd, iptr->line);
396 currentline = iptr->line;
399 MCODECHECK(64); /* an instruction usually needs < 64 words */
403 case ICMD_NOP: /* ... ==> ... */
406 /* constant operations ************************************************/
408 case ICMD_ICONST: /* ... ==> ..., constant */
410 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
411 ICONST(d, iptr->sx.val.i);
412 emit_store_dst(jd, iptr, d);
415 case ICMD_ACONST: /* ... ==> ..., constant */
417 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
418 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
419 disp = dseg_add_unique_address(cd, NULL);
421 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
422 iptr->sx.val.c.ref, disp);
424 if (opt_showdisassemble)
427 M_DSEG_LOAD(d, disp);
430 ICONST(d, (u4) iptr->sx.val.anyptr);
432 emit_store_dst(jd, iptr, d);
435 case ICMD_LCONST: /* ... ==> ..., constant */
437 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
438 LCONST(d, iptr->sx.val.l);
439 emit_store_dst(jd, iptr, d);
442 case ICMD_FCONST: /* ... ==> ..., constant */
444 #if defined(ENABLE_SOFTFLOAT)
445 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
446 ICONST(d, iptr->sx.val.i);
447 emit_store_dst(jd, iptr, d);
449 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
450 FCONST(d, iptr->sx.val.f);
451 emit_store_dst(jd, iptr, d);
455 case ICMD_DCONST: /* ... ==> ..., constant */
457 #if defined(ENABLE_SOFTFLOAT)
458 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
459 LCONST(d, iptr->sx.val.l);
460 emit_store_dst(jd, iptr, d);
462 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
463 DCONST(d, iptr->sx.val.d);
464 emit_store_dst(jd, iptr, d);
469 /* load/store/copy/move operations ************************************/
471 case ICMD_ILOAD: /* ... ==> ..., content of local variable */
472 case ICMD_ALOAD: /* op1 = local variable */
476 case ICMD_ISTORE: /* ..., value ==> ... */
487 if (!(iptr->flags.bits & INS_FLAG_RETADDR))
491 /* pop operations *****************************************************/
493 /* attention: double and longs are only one entry in CACAO ICMDs */
495 case ICMD_POP: /* ..., value ==> ... */
496 case ICMD_POP2: /* ..., value, value ==> ... */
501 /* integer operations *************************************************/
503 case ICMD_INT2BYTE: /* ..., value ==> ..., value */
505 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
506 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
507 M_MOV(d, REG_LSL(s1, 24));
508 M_MOV(d, REG_ASR(d, 24));
509 emit_store_dst(jd, iptr, d);
512 case ICMD_INT2CHAR: /* ..., value ==> ..., value */
514 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
515 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
516 M_MOV(d, REG_LSL(s1, 16));
517 M_MOV(d, REG_LSR(d, 16)); /* ATTENTION: char is unsigned */
518 emit_store_dst(jd, iptr, d);
521 case ICMD_INT2SHORT: /* ..., value ==> ..., value */
523 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
524 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
525 M_MOV(d, REG_LSL(s1, 16));
526 M_MOV(d, REG_ASR(d, 16));
527 emit_store_dst(jd, iptr, d);
530 case ICMD_I2L: /* ..., value ==> ..., value */
532 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
533 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
534 M_INTMOVE(s1, GET_LOW_REG(d));
535 M_MOV(GET_HIGH_REG(d), REG_ASR(s1, 31));
536 emit_store_dst(jd, iptr, d);
539 case ICMD_L2I: /* ..., value ==> ..., value */
541 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
542 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
544 emit_store_dst(jd, iptr, d);
547 case ICMD_INEG: /* ..., value ==> ..., - value */
549 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
550 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
552 emit_store_dst(jd, iptr, d);
555 case ICMD_LNEG: /* ..., value ==> ..., - value */
557 s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
558 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
559 M_RSB_IMMS(GET_LOW_REG(d), GET_LOW_REG(s1), 0);
560 M_RSC_IMM(GET_HIGH_REG(d), GET_HIGH_REG(s1), 0);
561 emit_store_dst(jd, iptr, d);
564 case ICMD_IADD: /* ..., val1, val2 ==> ..., val1 + val2 */
566 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
567 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
568 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
570 emit_store_dst(jd, iptr, d);
573 case ICMD_LADD: /* ..., val1, val2 ==> ..., val1 + val2 */
575 s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
576 s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
577 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
578 M_ADD_S(GET_LOW_REG(d), s1, s2);
579 s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
580 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
581 M_ADC(GET_HIGH_REG(d), s1, s2);
582 emit_store_dst(jd, iptr, d);
588 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
589 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
591 if (IS_IMM(iptr->sx.val.i)) {
592 M_ADD_IMM(d, s1, iptr->sx.val.i);
593 } else if (IS_IMM(-iptr->sx.val.i)) {
594 M_SUB_IMM(d, s1, (-iptr->sx.val.i));
596 ICONST(REG_ITMP3, iptr->sx.val.i);
597 M_ADD(d, s1, REG_ITMP3);
600 emit_store_dst(jd, iptr, d);
603 case ICMD_LADDCONST: /* ..., value ==> ..., value + constant */
604 /* sx.val.l = constant */
606 s3 = iptr->sx.val.l & 0xffffffff;
607 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
608 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
610 M_ADD_IMMS(GET_LOW_REG(d), s1, s3);
612 ICONST(REG_ITMP3, s3);
613 M_ADD_S(GET_LOW_REG(d), s1, REG_ITMP3);
615 s3 = iptr->sx.val.l >> 32;
616 s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
618 M_ADC_IMM(GET_HIGH_REG(d), s1, s3);
620 ICONST(REG_ITMP3, s3);
621 M_ADC(GET_HIGH_REG(d), s1, REG_ITMP3);
623 emit_store_dst(jd, iptr, d);
626 case ICMD_ISUB: /* ..., val1, val2 ==> ..., val1 - val2 */
628 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
629 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
630 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
632 emit_store_dst(jd, iptr, d);
635 case ICMD_LSUB: /* ..., val1, val2 ==> ..., val1 - val2 */
637 s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
638 s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
639 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
640 M_SUB_S(GET_LOW_REG(d), s1, s2);
641 s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
642 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
643 M_SBC(GET_HIGH_REG(d), s1, s2);
644 emit_store_dst(jd, iptr, d);
647 case ICMD_ISUBCONST: /* ..., value ==> ..., value + constant */
648 /* sx.val.i = constant */
650 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
651 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
652 if (IS_IMM(iptr->sx.val.i))
653 M_SUB_IMM(d, s1, iptr->sx.val.i);
655 ICONST(REG_ITMP3, iptr->sx.val.i);
656 M_SUB(d, s1, REG_ITMP3);
658 emit_store_dst(jd, iptr, d);
661 case ICMD_LSUBCONST: /* ..., value ==> ..., value - constant */
662 /* sx.val.l = constant */
664 s3 = iptr->sx.val.l & 0xffffffff;
665 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
666 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
668 M_SUB_IMMS(GET_LOW_REG(d), s1, s3);
670 ICONST(REG_ITMP3, s3);
671 M_SUB_S(GET_LOW_REG(d), s1, REG_ITMP3);
673 s3 = iptr->sx.val.l >> 32;
674 s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
676 M_SBC_IMM(GET_HIGH_REG(d), s1, s3);
678 ICONST(REG_ITMP3, s3);
679 M_SBC(GET_HIGH_REG(d), s1, REG_ITMP3);
681 emit_store_dst(jd, iptr, d);
684 case ICMD_IMUL: /* ..., val1, val2 ==> ..., val1 * val2 */
686 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
687 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
688 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
690 emit_store_dst(jd, iptr, d);
693 case ICMD_IDIV: /* ..., val1, val2 ==> ..., val1 / val2 */
694 case ICMD_IREM: /* ..., val1, val2 ==> ..., val1 % val2 */
696 s1 = emit_load_s1(jd, iptr, REG_A0);
697 s2 = emit_load_s2(jd, iptr, REG_A1);
698 emit_arithmetic_check(cd, iptr, s2);
700 /* move arguments into argument registers */
701 M_INTMOVE(s1, REG_A0);
702 M_INTMOVE(s2, REG_A1);
704 /* call builtin function */
705 bte = iptr->sx.s23.s3.bte;
706 disp = dseg_add_functionptr(cd, bte->fp);
710 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
713 /* move result into destination register */
714 d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
715 M_INTMOVE(REG_RESULT, d);
716 emit_store_dst(jd, iptr, d);
719 case ICMD_LDIV: /* ..., val1, val2 ==> ..., val1 / val2 */
720 case ICMD_LREM: /* ..., val1, val2 ==> ..., val1 % val2 */
722 /* move arguments into argument registers */
724 s1 = emit_load_s1(jd, iptr, REG_A0_A1_PACKED);
725 s2 = emit_load_s2(jd, iptr, REG_A2_A3_PACKED);
726 /* XXX TODO: only do this if arithmetic check is really done! */
727 M_ORR(GET_HIGH_REG(s2), GET_LOW_REG(s2), REG_ITMP3);
728 emit_arithmetic_check(cd, iptr, REG_ITMP3);
730 M_LNGMOVE(s1, REG_A0_A1_PACKED);
731 M_LNGMOVE(s2, REG_A2_A3_PACKED);
733 /* call builtin function */
734 bte = iptr->sx.s23.s3.bte;
735 disp = dseg_add_functionptr(cd, bte->fp);
739 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
742 /* move result into destination register */
743 d = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
744 M_LNGMOVE(REG_RESULT_PACKED, d);
745 emit_store_dst(jd, iptr, d);
748 case ICMD_IMULPOW2: /* ..., value ==> ..., value * (2 ^ constant) */
749 /* sx.val.i = constant */
751 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
752 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
753 M_MOV(d, REG_LSL(s1, iptr->sx.val.i));
754 emit_store_dst(jd, iptr, d);
757 case ICMD_IDIVPOW2: /* ..., value ==> ..., value / (2 ^ constant) */
758 /* sx.val.i = constant */
760 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
761 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
762 /* this rounds towards 0 as java likes it */
763 M_MOV(REG_ITMP3, REG_ASR(s1, 31));
764 M_ADD(REG_ITMP3, s1, REG_LSR(REG_ITMP3, 32 - iptr->sx.val.i));
765 M_MOV(d, REG_ASR(REG_ITMP3, iptr->sx.val.i));
766 /* this rounds towards nearest, not java style */
767 /*M_MOV_S(d, REG_ASR(s1, iptr->sx.val.i));
768 M_ADCMI_IMM(d, d, 0);*/
769 emit_store_dst(jd, iptr, d);
772 case ICMD_IREMPOW2: /* ..., value ==> ..., value % constant */
773 /* sx.val.i = constant [ (2 ^ x) - 1 ] */
775 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
776 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
777 M_MOV_S(REG_ITMP1, s1);
778 M_RSBMI_IMM(REG_ITMP1, REG_ITMP1, 0);
779 if (IS_IMM(iptr->sx.val.i))
780 M_AND_IMM(REG_ITMP1, iptr->sx.val.i, d);
782 ICONST(REG_ITMP3, iptr->sx.val.i);
783 M_AND(REG_ITMP1, REG_ITMP3, d);
785 M_RSBMI_IMM(d, d, 0);
786 emit_store_dst(jd, iptr, d);
789 case ICMD_ISHL: /* ..., val1, val2 ==> ..., val1 << val2 */
791 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
792 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
793 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
794 M_AND_IMM(s2, 0x1f, REG_ITMP2);
795 M_MOV(d, REG_LSL_REG(s1, REG_ITMP2));
796 emit_store_dst(jd, iptr, d);
799 case ICMD_ISHR: /* ..., val1, val2 ==> ..., val1 >> val2 */
801 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
802 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
803 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
804 M_AND_IMM(s2, 0x1f, REG_ITMP2);
805 M_MOV(d, REG_ASR_REG(s1, REG_ITMP2));
806 emit_store_dst(jd, iptr, d);
809 case ICMD_IUSHR: /* ..., val1, val2 ==> ..., val1 >>> val2 */
811 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
812 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
813 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
814 M_AND_IMM(s2, 0x1f, REG_ITMP2);
815 M_MOV(d, REG_LSR_REG(s1, REG_ITMP2));
816 emit_store_dst(jd, iptr, d);
819 case ICMD_ISHLCONST: /* ..., value ==> ..., value << constant */
820 /* sx.val.i = constant */
822 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
823 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
824 M_MOV(d, REG_LSL(s1, iptr->sx.val.i & 0x1f));
825 emit_store_dst(jd, iptr, d);
828 case ICMD_ISHRCONST: /* ..., value ==> ..., value >> constant */
829 /* sx.val.i = constant */
831 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
832 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
833 /* we need to check for zero here because arm interprets it as SHR by 32 */
834 if ((iptr->sx.val.i & 0x1f) == 0) {
837 M_MOV(d, REG_ASR(s1, iptr->sx.val.i & 0x1f));
839 emit_store_dst(jd, iptr, d);
842 case ICMD_IUSHRCONST: /* ..., value ==> ..., value >>> constant */
843 /* sx.val.i = constant */
845 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
846 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
847 /* we need to check for zero here because arm interprets it as SHR by 32 */
848 if ((iptr->sx.val.i & 0x1f) == 0)
851 M_MOV(d, REG_LSR(s1, iptr->sx.val.i & 0x1f));
852 emit_store_dst(jd, iptr, d);
855 case ICMD_IAND: /* ..., val1, val2 ==> ..., val1 & val2 */
857 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
858 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
859 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
861 emit_store_dst(jd, iptr, d);
864 case ICMD_LAND: /* ..., val1, val2 ==> ..., val1 & val2 */
866 s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
867 s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
868 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
869 M_AND(s1, s2, GET_LOW_REG(d));
870 s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
871 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
872 M_AND(s1, s2, GET_HIGH_REG(d));
873 emit_store_dst(jd, iptr, d);
876 case ICMD_IOR: /* ..., val1, val2 ==> ..., val1 | val2 */
878 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
879 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
880 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
882 emit_store_dst(jd, iptr, d);
885 case ICMD_LOR: /* ..., val1, val2 ==> ..., val1 | val2 */
887 s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
888 s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
889 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
890 M_ORR(s1, s2, GET_LOW_REG(d));
891 s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
892 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
893 M_ORR(s1, s2, GET_HIGH_REG(d));
894 emit_store_dst(jd, iptr, d);
897 case ICMD_IXOR: /* ..., val1, val2 ==> ..., val1 ^ val2 */
899 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
900 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
901 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
903 emit_store_dst(jd, iptr, d);
906 case ICMD_LXOR: /* ..., val1, val2 ==> ..., val1 ^ val2 */
908 s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
909 s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
910 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
911 M_EOR(s1, s2, GET_LOW_REG(d));
912 s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
913 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
914 M_EOR(s1, s2, GET_HIGH_REG(d));
915 emit_store_dst(jd, iptr, d);
919 /* floating operations ************************************************/
921 #if !defined(ENABLE_SOFTFLOAT)
923 case ICMD_FNEG: /* ..., value ==> ..., - value */
925 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
926 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
928 emit_store_dst(jd, iptr, d);
931 case ICMD_FADD: /* ..., val1, val2 ==> ..., val1 + val2 */
933 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
934 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
935 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
937 emit_store_dst(jd, iptr, d);
940 case ICMD_FSUB: /* ..., val1, val2 ==> ..., val1 - val2 */
942 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
943 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
944 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
946 emit_store_dst(jd, iptr, d);
949 case ICMD_FMUL: /* ..., val1, val2 ==> ..., val1 * val2 */
951 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
952 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
953 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
955 emit_store_dst(jd, iptr, d);
958 case ICMD_FDIV: /* ..., val1, val2 ==> ..., val1 / val2 */
959 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
960 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
961 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
963 emit_store_dst(jd, iptr, d);
966 /* ATTENTION: Jave does not want IEEE behaviour in FREM, do
969 case ICMD_FREM: /* ..., 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 case ICMD_DNEG: /* ..., value ==> ..., - value */
980 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
981 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
983 emit_store_dst(jd, iptr, d);
986 case ICMD_DADD: /* ..., val1, val2 ==> ..., val1 + val2 */
988 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
989 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
990 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
992 emit_store_dst(jd, iptr, d);
995 case ICMD_DSUB: /* ..., val1, val2 ==> ..., val1 - val2 */
997 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
998 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
999 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1001 emit_store_dst(jd, iptr, d);
1004 case ICMD_DMUL: /* ..., val1, val2 ==> ..., val1 * val2 */
1006 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1007 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1008 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1010 emit_store_dst(jd, iptr, d);
1013 case ICMD_DDIV: /* ..., val1, val2 ==> ..., val1 / val2 */
1015 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1016 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1017 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1019 emit_store_dst(jd, iptr, d);
1022 /* ATTENTION: Jave does not want IEEE behaviour in DREM, do
1025 case ICMD_DREM: /* ..., val1, val2 ==> ..., val1 % val2 */
1027 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1028 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1029 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1031 emit_store_dst(jd, iptr, d);
1034 case ICMD_I2F: /* ..., value ==> ..., (float) value */
1036 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1037 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1039 emit_store_dst(jd, iptr, d);
1042 case ICMD_I2D: /* ..., value ==> ..., (double) value */
1044 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1045 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1047 emit_store_dst(jd, iptr, d);
1050 case ICMD_F2I: /* ..., value ==> ..., (int) value */
1052 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1053 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1054 /* this uses round towards zero, as Java likes it */
1056 /* this checks for NaN; to return zero as Java likes it */
1059 emit_store_dst(jd, iptr, d);
1062 case ICMD_D2I: /* ..., value ==> ..., (int) value */
1064 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1065 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1066 /* this uses round towards zero, as Java likes it */
1068 /* this checks for NaN; to return zero as Java likes it */
1071 emit_store_dst(jd, iptr, d);
1074 case ICMD_D2F: /* ..., value ==> ..., (float) value */
1076 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1077 d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1079 emit_store_dst(jd, iptr, d);
1082 case ICMD_F2D: /* ..., value ==> ..., (double) value */
1084 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1085 d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1087 emit_store_dst(jd, iptr, d);
1090 case ICMD_FCMPG: /* ..., val1, val2 ==> ..., val1 fcmpg val2 */
1092 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1093 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1094 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1097 M_SUBGT_IMM(d, d, 1);
1098 M_ADDLT_IMM(d, d, 1);
1099 emit_store_dst(jd, iptr, d);
1102 case ICMD_DCMPG: /* ..., val1, val2 ==> ..., val1 dcmpg val2 */
1104 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1105 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1106 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1109 M_SUBGT_IMM(d, d, 1);
1110 M_ADDLT_IMM(d, d, 1);
1111 emit_store_dst(jd, iptr, d);
1114 case ICMD_FCMPL: /* ..., val1, val2 ==> ..., val1 fcmpl val2 */
1116 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1117 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1118 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1121 M_SUBLT_IMM(d, d, 1);
1122 M_ADDGT_IMM(d, d, 1);
1123 emit_store_dst(jd, iptr, d);
1126 case ICMD_DCMPL: /* ..., val1, val2 ==> ..., val1 dcmpl 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 M_SUBLT_IMM(d, d, 1);
1134 M_ADDGT_IMM(d, d, 1);
1135 emit_store_dst(jd, iptr, d);
1138 #endif /* !defined(ENABLE_SOFTFLOAT) */
1141 /* memory operations **************************************************/
1143 case ICMD_ARRAYLENGTH: /* ..., arrayref ==> ..., length */
1145 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1146 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1147 /* implicit null-pointer check */
1148 M_ILD_INTERN(d, s1, OFFSET(java_arrayheader, size));
1149 emit_store_dst(jd, iptr, d);
1152 case ICMD_BALOAD: /* ..., arrayref, index ==> ..., value */
1154 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1155 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1156 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1157 /* implicit null-pointer check */
1158 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1159 M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1160 M_LDRSB(d, REG_ITMP1, OFFSET(java_bytearray, data[0]));
1161 emit_store_dst(jd, iptr, d);
1164 case ICMD_CALOAD: /* ..., arrayref, index ==> ..., value */
1166 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1167 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1168 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1169 /* implicit null-pointer check */
1170 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1171 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1172 M_LDRH(d, REG_ITMP1, OFFSET(java_chararray, data[0]));
1173 emit_store_dst(jd, iptr, d);
1176 case ICMD_SALOAD: /* ..., arrayref, index ==> ..., value */
1178 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1179 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1180 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1181 /* implicit null-pointer check */
1182 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1183 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1184 M_LDRSH(d, REG_ITMP1, OFFSET(java_shortarray, data[0]));
1185 emit_store_dst(jd, iptr, d);
1188 case ICMD_IALOAD: /* ..., arrayref, index ==> ..., value */
1190 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1191 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1192 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1193 /* implicit null-pointer check */
1194 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1195 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1196 M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_intarray, data[0]));
1197 emit_store_dst(jd, iptr, d);
1200 case ICMD_LALOAD: /* ..., 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_ITMP12_PACKED);
1205 /* implicit null-pointer check */
1206 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1207 M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1208 M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_longarray, data[0]));
1209 emit_store_dst(jd, iptr, d);
1212 case ICMD_FALOAD: /* ..., arrayref, index ==> ..., value */
1214 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1215 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1216 /* implicit null-pointer check */
1217 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1218 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1219 #if !defined(ENABLE_SOFTFLOAT)
1220 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1221 M_FLD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray, data[0]));
1223 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1224 M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray, data[0]));
1226 emit_store_dst(jd, iptr, d);
1229 case ICMD_DALOAD: /* ..., arrayref, index ==> ..., value */
1231 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1232 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1233 /* implicit null-pointer check */
1234 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1235 M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1236 #if !defined(ENABLE_SOFTFLOAT)
1237 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1238 M_DLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray, data[0]));
1240 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1241 M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray, data[0]));
1243 emit_store_dst(jd, iptr, d);
1246 case ICMD_AALOAD: /* ..., arrayref, index ==> ..., value */
1248 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1249 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1250 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1251 /* implicit null-pointer check */
1252 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1253 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1254 M_LDR_INTERN(d, REG_ITMP1, OFFSET(java_objectarray, data[0]));
1255 emit_store_dst(jd, iptr, d);
1258 case ICMD_BASTORE: /* ..., arrayref, index, value ==> ... */
1260 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1261 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1262 /* implicit null-pointer check */
1263 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1264 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1265 M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1266 M_STRB(s3, REG_ITMP1, OFFSET(java_bytearray, data[0]));
1269 case ICMD_CASTORE: /* ..., arrayref, index, value ==> ... */
1271 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1272 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1273 /* implicit null-pointer check */
1274 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1275 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1276 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1277 M_STRH(s3, REG_ITMP1, OFFSET(java_chararray, data[0]));
1280 case ICMD_SASTORE: /* ..., arrayref, index, value ==> ... */
1282 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1283 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1284 /* implicit null-pointer check */
1285 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1286 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1287 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1288 M_STRH(s3, REG_ITMP1, OFFSET(java_shortarray, data[0]));
1291 case ICMD_IASTORE: /* ..., arrayref, index, value ==> ... */
1293 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1294 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1295 /* implicit null-pointer check */
1296 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1297 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1298 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1299 M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray, data[0]));
1302 case ICMD_LASTORE: /* ..., arrayref, index, value ==> ... */
1304 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1305 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1306 /* implicit null-pointer check */
1307 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1308 M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1309 s3 = emit_load_s3(jd, iptr, REG_ITMP12_PACKED);
1310 M_LST_INTERN(s3, REG_ITMP3, OFFSET(java_longarray, data[0]));
1313 case ICMD_FASTORE: /* ..., arrayref, index, value ==> ... */
1315 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1316 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1317 /* implicit null-pointer check */
1318 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1319 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1320 #if !defined(ENABLE_SOFTFLOAT)
1321 s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1322 M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray, data[0]));
1324 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1325 M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray, data[0]));
1329 case ICMD_DASTORE: /* ..., arrayref, index, value ==> ... */
1331 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1332 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1333 /* implicit null-pointer check */
1334 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1335 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 3)); /* REG_ITMP1 = s1 + 8 * s2 */
1336 #if !defined(ENABLE_SOFTFLOAT)
1337 s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1338 M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray, data[0]));
1340 s3 = emit_load_s3(jd, iptr, REG_ITMP23_PACKED);
1341 M_LST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray, data[0]));
1345 case ICMD_AASTORE: /* ..., arrayref, index, value ==> ... */
1347 s1 = emit_load_s1(jd, iptr, REG_A0);
1348 s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1349 s3 = emit_load_s3(jd, iptr, REG_A1);
1351 /* implicit null-pointer check */
1352 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1354 /* move arguments to argument registers */
1355 M_INTMOVE(s1, REG_A0);
1356 M_INTMOVE(s3, REG_A1);
1358 /* call builtin function */
1359 disp = dseg_add_functionptr(cd, BUILTIN_canstore);
1360 M_DSEG_BRANCH(disp);
1363 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
1366 /* check resturn value of builtin */
1367 emit_exception_check(cd, iptr);
1369 /* finally store address into array */
1370 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1371 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1372 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1373 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1374 M_STR_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray, data[0]));
1377 case ICMD_GETSTATIC: /* ... ==> ..., value */
1379 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1380 uf = iptr->sx.s23.s3.uf;
1381 fieldtype = uf->fieldref->parseddesc.fd->type;
1382 disp = dseg_add_unique_address(cd, NULL);
1384 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1386 if (opt_showdisassemble)
1390 fi = iptr->sx.s23.s3.fmiref->p.field;
1391 fieldtype = fi->type;
1392 disp = dseg_add_address(cd, fi->value);
1394 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1395 patcher_add_patch_ref(jd, PATCHER_initialize_class,
1398 if (opt_showdisassemble)
1403 M_DSEG_LOAD(REG_ITMP3, disp);
1404 switch (fieldtype) {
1406 #if defined(ENABLE_SOFTFLOAT)
1410 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1411 M_ILD_INTERN(d, REG_ITMP3, 0);
1414 #if defined(ENABLE_SOFTFLOAT)
1417 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1418 M_LLD_INTERN(d, REG_ITMP3, 0);
1420 #if !defined(ENABLE_SOFTFLOAT)
1422 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1423 M_FLD_INTERN(d, REG_ITMP3, 0);
1426 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1427 M_DLD_INTERN(d, REG_ITMP3, 0);
1433 emit_store_dst(jd, iptr, d);
1436 case ICMD_PUTSTATIC: /* ..., value ==> ... */
1438 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1439 uf = iptr->sx.s23.s3.uf;
1440 fieldtype = uf->fieldref->parseddesc.fd->type;
1441 disp = dseg_add_unique_address(cd, NULL);
1443 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1445 if (opt_showdisassemble)
1449 fi = iptr->sx.s23.s3.fmiref->p.field;
1450 fieldtype = fi->type;
1451 disp = dseg_add_address(cd, fi->value);
1453 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1454 patcher_add_patch_ref(jd, PATCHER_initialize_class,
1457 if (opt_showdisassemble)
1462 M_DSEG_LOAD(REG_ITMP3, disp);
1463 switch (fieldtype) {
1465 #if defined(ENABLE_SOFTFLOAT)
1469 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1470 M_IST_INTERN(s1, REG_ITMP3, 0);
1473 #if defined(ENABLE_SOFTFLOAT)
1476 s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
1477 M_LST_INTERN(s1, REG_ITMP3, 0);
1479 #if !defined(ENABLE_SOFTFLOAT)
1481 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1482 M_FST_INTERN(s1, REG_ITMP3, 0);
1485 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1486 M_DST_INTERN(s1, REG_ITMP3, 0);
1494 case ICMD_GETFIELD: /* ..., objectref, value ==> ... */
1496 s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1497 emit_nullpointer_check(cd, iptr, s1);
1500 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1501 uf = iptr->sx.s23.s3.uf;
1502 fieldtype = uf->fieldref->parseddesc.fd->type;
1506 fi = iptr->sx.s23.s3.fmiref->p.field;
1507 fieldtype = fi->type;
1511 #if !defined(ENABLE_SOFTFLOAT)
1512 /* HACK: softnull checks on floats */
1513 if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1514 emit_nullpointer_check_force(cd, iptr, s1);
1517 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1519 uf = iptr->sx.s23.s3.uf;
1521 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1523 if (opt_showdisassemble)
1527 switch (fieldtype) {
1529 #if defined(ENABLE_SOFTFLOAT)
1533 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1537 #if defined(ENABLE_SOFTFLOAT)
1540 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1543 #if !defined(ENABLE_SOFTFLOAT)
1545 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1549 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1556 emit_store_dst(jd, iptr, d);
1559 case ICMD_PUTFIELD: /* ..., objectref, value ==> ... */
1561 s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1562 emit_nullpointer_check(cd, iptr, s1);
1564 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1565 uf = iptr->sx.s23.s3.uf;
1566 fieldtype = uf->fieldref->parseddesc.fd->type;
1570 fi = iptr->sx.s23.s3.fmiref->p.field;
1571 fieldtype = fi->type;
1575 #if !defined(ENABLE_SOFTFLOAT)
1576 /* HACK: softnull checks on floats */
1577 if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1578 emit_nullpointer_check_force(cd, iptr, s1);
1581 switch (fieldtype) {
1583 #if defined(ENABLE_SOFTFLOAT)
1587 s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1589 #if defined(ENABLE_SOFTFLOAT)
1590 case TYPE_DBL: /* fall through */
1593 s2 = emit_load_s2(jd, iptr, REG_ITMP12_PACKED);
1595 #if !defined(ENABLE_SOFTFLOAT)
1598 s2 = emit_load_s2(jd, iptr, REG_FTMP1);
1605 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1607 uf = iptr->sx.s23.s3.uf;
1609 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1611 if (opt_showdisassemble)
1615 switch (fieldtype) {
1617 #if defined(ENABLE_SOFTFLOAT)
1621 M_IST(s2, s1, disp);
1624 #if defined(ENABLE_SOFTFLOAT)
1627 M_LST(s2, s1, disp);
1629 #if !defined(ENABLE_SOFTFLOAT)
1631 M_FST(s2, s1, disp);
1634 M_DST(s2, s1, disp);
1643 /* branch operations **************************************************/
1645 case ICMD_ATHROW: /* ..., objectref ==> ... (, objectref) */
1647 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1648 M_INTMOVE(s1, REG_ITMP1_XPTR);
1649 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1650 patcher_add_patch_ref(jd, PATCHER_resolve_class,
1651 iptr->sx.s23.s2.uc, 0);
1653 if (opt_showdisassemble)
1656 disp = dseg_add_functionptr(cd, asm_handle_exception);
1657 M_DSEG_LOAD(REG_ITMP3, disp);
1658 M_MOV(REG_ITMP2_XPC, REG_PC);
1659 M_MOV(REG_PC, REG_ITMP3);
1660 M_NOP; /* nop ensures that XPC is less than the end */
1661 /* of basic block */
1664 case ICMD_GOTO: /* ... ==> ... */
1667 emit_br(cd, iptr->dst.block);
1670 case ICMD_JSR: /* ... ==> ... */
1672 emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1675 case ICMD_IFNULL: /* ..., value ==> ... */
1676 case ICMD_IFNONNULL:
1678 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1680 emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFNULL, BRANCH_OPT_NONE);
1683 case ICMD_IFLT: /* ..., value ==> ... */
1684 case ICMD_IFLE: /* op1 = target JavaVM pc, val.i = constant */
1690 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1691 M_COMPARE(s1, iptr->sx.val.i);
1692 emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1695 case ICMD_IF_LEQ: /* ..., value ==> ... */
1697 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1698 s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1699 if (iptr->sx.val.l == 0) {
1700 M_ORR_S(s1, s2, REG_ITMP3);
1703 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1704 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1705 M_CMP(s1, REG_ITMP3);*/
1706 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1707 M_CMPEQ(s2, REG_ITMP3);
1709 emit_beq(cd, iptr->dst.block);
1712 case ICMD_IF_LLT: /* ..., value ==> ... */
1714 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1715 s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1716 if (iptr->sx.val.l == 0) {
1717 /* if high word is less than zero, the whole long is too */
1719 emit_blt(cd, iptr->dst.block);
1722 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1723 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1724 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1725 M_CMP(s1, REG_ITMP3);*/
1726 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1727 M_MOVGT_IMM(2, REG_ITMP1);
1728 M_MOVEQ_IMM(1, REG_ITMP1);
1730 /* low compare: x=x-1(ifLO) */
1731 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1732 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1733 M_CMP(s2, REG_ITMP3);*/
1734 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1736 /* branch if (x LT 1) */
1737 M_CMP_IMM(REG_ITMP1, 1);
1738 emit_blt(cd, iptr->dst.block);
1742 case ICMD_IF_LLE: /* ..., value ==> ... */
1744 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1745 s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1746 if (iptr->sx.val.l == 0) {
1747 /* if high word is less than zero, the whole long is too */
1749 emit_blt(cd, iptr->dst.block);
1751 /* ... otherwise the low word has to be zero (tricky!) */
1753 emit_beq(cd, iptr->dst.block);
1756 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1757 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1758 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1759 M_CMP(s1, REG_ITMP3);*/
1760 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1761 M_MOVGT_IMM(2, REG_ITMP1);
1762 M_MOVEQ_IMM(1, REG_ITMP1);
1764 /* low compare: x=x+1(ifHI) */
1765 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1766 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1767 M_CMP(s2, REG_ITMP3);*/
1768 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1770 /* branch if (x LE 1) */
1771 M_CMP_IMM(REG_ITMP1, 1);
1772 emit_ble(cd, iptr->dst.block);
1776 case ICMD_IF_LGE: /* ..., value ==> ... */
1778 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1779 s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1780 if (iptr->sx.val.l == 0) {
1781 /* if high word is greater or equal zero, the whole long is too */
1783 emit_bge(cd, iptr->dst.block);
1786 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1787 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1788 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1789 M_CMP(s1, REG_ITMP3);*/
1790 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1791 M_MOVGT_IMM(2, REG_ITMP1);
1792 M_MOVEQ_IMM(1, REG_ITMP1);
1794 /* low compare: x=x-1(ifLO) */
1795 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1796 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1797 M_CMP(s2, REG_ITMP3);*/
1798 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1800 /* branch if (x GE 1) */
1801 M_CMP_IMM(REG_ITMP1, 1);
1802 emit_bge(cd, iptr->dst.block);
1806 case ICMD_IF_LGT: /* ..., value ==> ... */
1808 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1809 s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1811 if (iptr->sx.val.l == 0) {
1812 /* if high word is greater than zero, the whole long is too */
1815 codegen_add_branch_ref(cd, iptr->dst.block);
1817 /* ... or high was zero and low is non zero (tricky!) */
1818 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1819 M_MOVLT_IMM(1, REG_ITMP3);
1820 M_ORR_S(REG_ITMP3, s2, REG_ITMP3);
1822 codegen_add_branch_ref(cd, iptr->dst.block);
1826 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1827 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1828 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1829 M_CMP(s1, REG_ITMP3);*/
1830 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1831 M_MOVGT_IMM(2, REG_ITMP1);
1832 M_MOVEQ_IMM(1, REG_ITMP1);
1834 /* low compare: x=x+1(ifHI) */
1835 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1836 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1837 M_CMP(s2, REG_ITMP3);*/
1838 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1840 /* branch if (x GT 1) */
1841 M_CMP_IMM(REG_ITMP1, 1);
1842 emit_bgt(cd, iptr->dst.block);
1848 case ICMD_IF_LNE: /* ..., value ==> ... */
1850 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1851 s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1852 if (iptr->sx.val.l == 0) {
1853 M_ORR_S(s1, s2, REG_ITMP3);
1856 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1857 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1858 M_CMP(s1, REG_ITMP3);*/
1859 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1860 M_CMPEQ(s2, REG_ITMP3);
1862 emit_bne(cd, iptr->dst.block);
1865 case ICMD_IF_ICMPEQ: /* ..., value, value ==> ... */
1866 case ICMD_IF_ICMPNE:
1867 case ICMD_IF_ICMPLT:
1868 case ICMD_IF_ICMPLE:
1869 case ICMD_IF_ICMPGT:
1870 case ICMD_IF_ICMPGE:
1872 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1873 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1875 emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ICMPEQ, BRANCH_OPT_NONE);
1878 case ICMD_IF_ACMPEQ: /* ..., value, value ==> ... */
1879 case ICMD_IF_ACMPNE:
1881 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1882 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1884 emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ACMPEQ, BRANCH_OPT_NONE);
1887 case ICMD_IF_LCMPEQ: /* ..., value, value ==> ... */
1888 /* op1 = target JavaVM pc */
1890 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1891 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1894 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1895 s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1898 emit_beq(cd, iptr->dst.block);
1901 case ICMD_IF_LCMPNE: /* ..., value, value ==> ... */
1902 /* op1 = target JavaVM pc */
1904 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1905 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1908 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1909 s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1912 emit_bne(cd, iptr->dst.block);
1915 case ICMD_IF_LCMPLT: /* ..., value, value ==> ... */
1916 /* op1 = target JavaVM pc */
1918 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1919 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1920 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1922 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1923 M_MOVGT_IMM(2, REG_ITMP3);
1924 M_MOVEQ_IMM(1, REG_ITMP3);
1926 /* low compare: x=x-1(ifLO) */
1927 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1928 s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1930 M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1932 /* branch if (x LT 1) */
1933 M_CMP_IMM(REG_ITMP3, 1);
1934 emit_blt(cd, iptr->dst.block);
1937 case ICMD_IF_LCMPLE: /* ..., value, value ==> ... */
1938 /* op1 = target JavaVM pc */
1940 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1941 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1942 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1944 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1945 M_MOVGT_IMM(2, REG_ITMP3);
1946 M_MOVEQ_IMM(1, REG_ITMP3);
1948 /* low compare: x=x-1(ifLO) */
1949 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1950 s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1952 M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1954 /* branch if (x LE 1) */
1955 M_CMP_IMM(REG_ITMP3, 1);
1956 emit_ble(cd, iptr->dst.block);
1959 case ICMD_IF_LCMPGT: /* ..., value, value ==> ... */
1960 /* op1 = target JavaVM pc */
1962 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1963 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1964 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1966 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1967 M_MOVGT_IMM(2, REG_ITMP3);
1968 M_MOVEQ_IMM(1, REG_ITMP3);
1970 /* low compare: x=x-1(ifLO) */
1971 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1972 s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1974 M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1976 /* branch if (x GT 1) */
1977 M_CMP_IMM(REG_ITMP3, 1);
1978 emit_bgt(cd, iptr->dst.block);
1981 case ICMD_IF_LCMPGE: /* ..., value, value ==> ... */
1982 /* op1 = target JavaVM pc */
1984 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1985 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1986 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1988 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1989 M_MOVGT_IMM(2, REG_ITMP3);
1990 M_MOVEQ_IMM(1, REG_ITMP3);
1992 /* low compare: x=x-1(ifLO) */
1993 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1994 s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1996 M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1998 /* branch if (x GE 1) */
1999 M_CMP_IMM(REG_ITMP3, 1);
2000 emit_bge(cd, iptr->dst.block);
2003 case ICMD_TABLESWITCH: /* ..., index ==> ... */
2006 branch_target_t *table;
2008 table = iptr->dst.table;
2010 l = iptr->sx.s23.s2.tablelow;
2011 i = iptr->sx.s23.s3.tablehigh;
2013 /* calculate new index (index - low) */
2014 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2016 M_INTMOVE(s1, REG_ITMP1);
2017 } else if (IS_IMM(l)) {
2018 M_SUB_IMM(REG_ITMP1, s1, l);
2020 ICONST(REG_ITMP2, l);
2021 M_SUB(REG_ITMP1, s1, REG_ITMP2);
2024 /* range check (index <= high-low) */
2026 M_COMPARE(REG_ITMP1, i-1);
2027 emit_bugt(cd, table[0].block);
2029 /* build jump table top down and use address of lowest entry */
2034 dseg_add_target(cd, table->block);
2039 /* length of dataseg after last dseg_add_target is used by load */
2040 /* TODO: this loads from data-segment */
2041 M_ADD(REG_ITMP2, REG_PV, REG_LSL(REG_ITMP1, 2));
2042 M_LDR(REG_PC, REG_ITMP2, -(cd->dseglen));
2045 case ICMD_LOOKUPSWITCH: /* ..., key ==> ... */
2048 lookup_target_t *lookup;
2050 lookup = iptr->dst.lookup;
2052 i = iptr->sx.s23.s2.lookupcount;
2055 MCODECHECK((i<<2)+8);
2056 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2059 M_COMPARE(s1, lookup->value);
2060 emit_beq(cd, lookup->target.block);
2064 /* default branch */
2065 emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2069 case ICMD_FRETURN: /* ..., retvalue ==> ... */
2071 #if !defined(ENABLE_SOFTFLOAT)
2072 REPLACEMENT_POINT_RETURN(cd, iptr);
2073 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2074 M_CAST_FLT_TO_INT_TYPED(VAROP(iptr->s1)->type, s1, REG_RESULT);
2075 goto ICMD_RETURN_do;
2078 case ICMD_IRETURN: /* ..., retvalue ==> ... */
2080 REPLACEMENT_POINT_RETURN(cd, iptr);
2081 s1 = emit_load_s1(jd, iptr, REG_RESULT);
2082 M_INTMOVE(s1, REG_RESULT);
2083 goto ICMD_RETURN_do;
2085 case ICMD_DRETURN: /* ..., retvalue ==> ... */
2087 #if !defined(ENABLE_SOFTFLOAT)
2088 REPLACEMENT_POINT_RETURN(cd, iptr);
2089 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2090 M_CAST_FLT_TO_INT_TYPED(VAROP(iptr->s1)->type, s1, REG_RESULT_PACKED);
2091 goto ICMD_RETURN_do;
2094 case ICMD_LRETURN: /* ..., retvalue ==> ... */
2096 REPLACEMENT_POINT_RETURN(cd, iptr);
2097 s1 = emit_load_s1(jd, iptr, REG_RESULT_PACKED);
2098 M_LNGMOVE(s1, REG_RESULT_PACKED);
2099 goto ICMD_RETURN_do;
2101 case ICMD_ARETURN: /* ..., retvalue ==> ... */
2103 REPLACEMENT_POINT_RETURN(cd, iptr);
2104 s1 = emit_load_s1(jd, iptr, REG_RESULT);
2105 M_INTMOVE(s1, REG_RESULT);
2106 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2107 patcher_add_patch_ref(jd, PATCHER_resolve_class,
2108 iptr->sx.s23.s2.uc, 0);
2110 if (opt_showdisassemble)
2113 goto ICMD_RETURN_do;
2115 case ICMD_RETURN: /* ... ==> ... */
2117 REPLACEMENT_POINT_RETURN(cd, iptr);
2120 #if !defined(NDEBUG)
2121 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2122 emit_verbosecall_exit(jd);
2125 #if defined(ENABLE_THREADS)
2126 /* call monitorexit function */
2128 if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
2129 /* stack offset for monitor argument */
2131 s1 = rd->memuse * 8;
2133 /* we need to save the proper return value */
2135 switch (iptr->opc) {
2139 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2141 M_STMFD(BITMASK_RESULT, REG_SP);
2146 M_LDR(REG_A0, REG_SP, s1);
2147 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
2148 M_DSEG_BRANCH(disp);
2150 /* we no longer need PV here, no more loading */
2151 /*s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2152 M_RECOMPUTE_PV(s1);*/
2154 switch (iptr->opc) {
2158 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2160 M_LDMFD(BITMASK_RESULT, REG_SP);
2166 /* deallocate stackframe for spilled variables */
2168 if ((cd->stackframesize / 4 - savedregs_num) > 0)
2169 M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
2171 /* restore callee saved registers + do return */
2173 if (savedregs_bitmask) {
2174 if (!jd->isleafmethod) {
2175 savedregs_bitmask &= ~(1<<REG_LR);
2176 savedregs_bitmask |= (1<<REG_PC);
2178 M_LDMFD(savedregs_bitmask, REG_SP);
2181 /* if LR was not on stack, we need to return manually */
2183 if (jd->isleafmethod)
2184 M_MOV(REG_PC, REG_LR);
2187 case ICMD_BUILTIN: /* ..., arg1, arg2, arg3 ==> ... */
2189 bte = iptr->sx.s23.s3.bte;
2191 goto ICMD_INVOKE_do;
2193 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ... */
2194 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2195 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer */
2196 case ICMD_INVOKEINTERFACE:
2198 REPLACEMENT_POINT_INVOKE(cd, iptr);
2200 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2202 um = iptr->sx.s23.s3.um;
2203 md = um->methodref->parseddesc.md;
2206 lm = iptr->sx.s23.s3.fmiref->p.method;
2208 md = lm->parseddesc;
2212 /* copy arguments to registers or stack location */
2214 s3 = md->paramcount;
2216 MCODECHECK((s3 << 1) + 64);
2218 for (s3 = s3 - 1; s3 >= 0; s3--) {
2219 var = VAR(iptr->sx.s23.s2.args[s3]);
2220 d = md->params[s3].regoff;
2222 if (var->flags & PREALLOC) /* argument was precolored? */
2225 /* TODO: document me */
2226 #if !defined(ENABLE_SOFTFLOAT)
2227 if (IS_INT_LNG_TYPE(var->type)) {
2228 #endif /* !defined(ENABLE_SOFTFLOAT) */
2229 if (!md->params[s3].inmemory) {
2230 s1 = emit_load(jd, iptr, var, d);
2232 if (IS_2_WORD_TYPE(var->type))
2238 if (IS_2_WORD_TYPE(var->type)) {
2239 s1 = emit_load(jd, iptr, var, REG_ITMP12_PACKED);
2240 M_LST(s1, REG_SP, d);
2243 s1 = emit_load(jd, iptr, var, REG_ITMP1);
2244 M_IST(s1, REG_SP, d);
2247 #if !defined(ENABLE_SOFTFLOAT)
2250 if (!md->params[s3].inmemory) {
2251 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2252 M_CAST_FLT_TO_INT_TYPED(var->type, s1, d);
2255 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2256 if (IS_2_WORD_TYPE(var->type))
2257 M_DST(s1, REG_SP, d);
2259 M_FST(s1, REG_SP, d);
2262 #endif /* !defined(ENABLE_SOFTFLOAT) */
2265 switch (iptr->opc) {
2268 if (bte->stub == NULL) {
2269 disp = dseg_add_functionptr(cd, bte->fp);
2271 disp = dseg_add_functionptr(cd, bte->stub);
2274 M_DSEG_LOAD(REG_PV, disp); /* pointer to built-in-function */
2276 /* generate the actual call */
2278 M_MOV(REG_LR, REG_PC);
2279 M_MOV(REG_PC, REG_PV);
2280 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2283 emit_exception_check(cd, iptr);
2286 case ICMD_INVOKESPECIAL:
2287 emit_nullpointer_check(cd, iptr, REG_A0);
2290 case ICMD_INVOKESTATIC:
2292 disp = dseg_add_unique_address(cd, NULL);
2294 patcher_add_patch_ref(jd, PATCHER_invokestatic_special,
2297 if (opt_showdisassemble)
2301 disp = dseg_add_address(cd, lm->stubroutine);
2303 M_DSEG_LOAD(REG_PV, disp); /* Pointer to method */
2305 /* generate the actual call */
2307 M_MOV(REG_LR, REG_PC);
2308 M_MOV(REG_PC, REG_PV);
2309 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2313 case ICMD_INVOKEVIRTUAL:
2315 patcher_add_patch_ref(jd, PATCHER_invokevirtual, um, 0);
2317 if (opt_showdisassemble)
2323 s1 = OFFSET(vftbl_t, table[0]) +
2324 sizeof(methodptr) * lm->vftblindex;
2326 /* implicit null-pointer check */
2327 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2328 OFFSET(java_object_t, vftbl));
2329 M_LDR_INTERN(REG_PV, REG_METHODPTR, s1);
2331 /* generate the actual call */
2333 M_MOV(REG_LR, REG_PC);
2334 M_MOV(REG_PC, REG_PV);
2335 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2339 case ICMD_INVOKEINTERFACE:
2341 patcher_add_patch_ref(jd, PATCHER_invokeinterface, um, 0);
2343 if (opt_showdisassemble)
2350 s1 = OFFSET(vftbl_t, interfacetable[0]) -
2351 sizeof(methodptr*) * lm->class->index;
2352 s2 = sizeof(methodptr) * (lm - lm->class->methods);
2355 /* implicit null-pointer check */
2356 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2357 OFFSET(java_object_t, vftbl));
2358 M_LDR_INTERN(REG_METHODPTR, REG_METHODPTR, s1);
2359 M_LDR_INTERN(REG_PV, REG_METHODPTR, s2);
2361 /* generate the actual call */
2363 M_MOV(REG_LR, REG_PC);
2364 M_MOV(REG_PC, REG_PV);
2365 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2370 /* store size of call code in replacement point */
2371 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2373 /* store return value */
2375 d = md->returntype.type;
2377 #if !defined(__SOFTFP__)
2378 /* TODO: this is only a hack, since we use R0/R1 for float
2379 return! this depends on gcc; it is independent from
2380 our ENABLE_SOFTFLOAT define */
2381 if (iptr->opc == ICMD_BUILTIN && d != TYPE_VOID && IS_FLT_DBL_TYPE(d)) {
2382 #if 0 && !defined(NDEBUG)
2383 dolog("BUILTIN that returns float or double (%s.%s)", m->class->name->text, m->name->text);
2385 /* we cannot use this macro, since it is not defined
2386 in ENABLE_SOFTFLOAT M_CAST_FLT_TO_INT_TYPED(d,
2387 REG_FRESULT, REG_RESULT_TYPED(d)); */
2388 if (IS_2_WORD_TYPE(d)) {
2389 DCD(0xed2d8102); /* stfd f0, [sp, #-8]! */
2390 M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
2392 DCD(0xed2d0101); /* stfs f0, [sp, #-4]!*/
2393 M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
2398 if (d != TYPE_VOID) {
2399 #if !defined(ENABLE_SOFTFLOAT)
2400 if (IS_INT_LNG_TYPE(d)) {
2401 #endif /* !defined(ENABLE_SOFTFLOAT) */
2402 if (IS_2_WORD_TYPE(d)) {
2403 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
2404 M_LNGMOVE(REG_RESULT_PACKED, s1);
2407 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2408 M_INTMOVE(REG_RESULT, s1);
2411 #if !defined(ENABLE_SOFTFLOAT)
2413 s1 = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
2414 M_CAST_INT_TO_FLT_TYPED(VAROP(iptr->dst)->type, REG_RESULT_TYPED(VAROP(iptr->dst)->type), s1);
2416 #endif /* !defined(ENABLE_SOFTFLOAT) */
2418 emit_store_dst(jd, iptr, s1);
2422 case ICMD_CHECKCAST: /* ..., objectref ==> ..., objectref */
2424 if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2425 /* object type cast-check */
2430 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2435 super = iptr->sx.s23.s3.c.cls;
2436 superindex = super->index;
2439 if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2440 CODEGEN_CRITICAL_SECTION_NEW;
2442 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2444 /* if class is not resolved, check which code to call */
2446 if (super == NULL) {
2448 emit_label_beq(cd, BRANCH_LABEL_1);
2450 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2451 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2452 iptr->sx.s23.s3.c.ref, disp);
2454 if (opt_showdisassemble)
2457 M_DSEG_LOAD(REG_ITMP2, disp);
2458 disp = dseg_add_s4(cd, ACC_INTERFACE);
2459 M_DSEG_LOAD(REG_ITMP3, disp);
2460 M_TST(REG_ITMP2, REG_ITMP3);
2461 emit_label_beq(cd, BRANCH_LABEL_2);
2464 /* interface checkcast code */
2466 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2467 if ((super == NULL) || !IS_IMM(superindex)) {
2468 disp = dseg_add_unique_s4(cd, superindex);
2470 if (super == NULL) {
2471 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2472 iptr->sx.s23.s3.c.ref, disp);
2474 if (opt_showdisassemble)
2479 emit_label_beq(cd, BRANCH_LABEL_3);
2482 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2483 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2485 /* we put unresolved or non-immediate superindices onto dseg */
2486 if ((super == NULL) || !IS_IMM(superindex)) {
2487 /* disp was computed before we added the patcher */
2488 M_DSEG_LOAD(REG_ITMP2, disp);
2489 M_CMP(REG_ITMP3, REG_ITMP2);
2491 assert(IS_IMM(superindex));
2492 M_CMP_IMM(REG_ITMP3, superindex);
2495 emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2497 /* if we loaded the superindex out of the dseg above, we do
2498 things differently here! */
2499 if ((super == NULL) || !IS_IMM(superindex)) {
2501 M_LDR_INTERN(REG_ITMP3, s1, OFFSET(java_object_t, vftbl));
2503 /* this assumes something */
2504 assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2506 /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2507 assert(sizeof(methodptr*) == 4);
2508 M_SUB(REG_ITMP2, REG_ITMP3, REG_LSL(REG_ITMP2, 2));
2514 s2 = OFFSET(vftbl_t, interfacetable[0]) -
2515 superindex * sizeof(methodptr*);
2519 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, s2);
2520 M_TST(REG_ITMP3, REG_ITMP3);
2521 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2524 emit_label_br(cd, BRANCH_LABEL_4);
2526 emit_label(cd, BRANCH_LABEL_3);
2529 /* class checkcast code */
2531 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2532 if (super == NULL) {
2533 emit_label(cd, BRANCH_LABEL_2);
2535 disp = dseg_add_unique_address(cd, NULL);
2537 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2538 iptr->sx.s23.s3.c.ref,
2541 if (opt_showdisassemble)
2545 disp = dseg_add_address(cd, super->vftbl);
2548 emit_label_beq(cd, BRANCH_LABEL_5);
2551 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2552 M_DSEG_LOAD(REG_ITMP3, disp);
2554 CODEGEN_CRITICAL_SECTION_START;
2556 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2557 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, baseval));
2558 M_SUB(REG_ITMP2, REG_ITMP2, REG_ITMP3);
2559 M_DSEG_LOAD(REG_ITMP3, disp);
2560 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
2562 CODEGEN_CRITICAL_SECTION_END;
2564 M_CMP(REG_ITMP2, REG_ITMP3);
2565 emit_classcast_check(cd, iptr, BRANCH_UGT, 0, s1);
2568 emit_label(cd, BRANCH_LABEL_5);
2571 if (super == NULL) {
2572 emit_label(cd, BRANCH_LABEL_1);
2573 emit_label(cd, BRANCH_LABEL_4);
2576 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
2579 /* array type cast-check */
2581 s1 = emit_load_s1(jd, iptr, REG_A0);
2582 M_INTMOVE(s1, REG_A0);
2584 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2585 disp = dseg_add_unique_address(cd, NULL);
2587 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2588 iptr->sx.s23.s3.c.ref,
2591 if (opt_showdisassemble)
2595 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2597 M_DSEG_LOAD(REG_A1, disp);
2598 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2599 M_DSEG_BRANCH(disp);
2602 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2603 M_RECOMPUTE_PV(disp);
2605 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2606 M_TST(REG_RESULT, REG_RESULT);
2607 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2609 d = codegen_reg_of_dst(jd, iptr, s1);
2613 emit_store_dst(jd, iptr, d);
2616 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult */
2622 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2627 super = iptr->sx.s23.s3.c.cls;
2628 superindex = super->index;
2631 if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2632 CODEGEN_CRITICAL_SECTION_NEW;
2634 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2635 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2638 M_MOV(REG_ITMP1, s1);
2642 /* if class is not resolved, check which code to call */
2644 if (super == NULL) {
2648 emit_label_beq(cd, BRANCH_LABEL_1);
2650 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2651 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2652 iptr->sx.s23.s3.c.ref, disp);
2654 if (opt_showdisassemble)
2657 M_DSEG_LOAD(REG_ITMP2, disp);
2658 disp = dseg_add_s4(cd, ACC_INTERFACE);
2659 M_DSEG_LOAD(REG_ITMP3, disp);
2660 M_TST(REG_ITMP2, REG_ITMP3);
2661 emit_label_beq(cd, BRANCH_LABEL_2);
2664 /* interface checkcast code */
2666 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2667 if ((super == NULL) || !IS_IMM(superindex)) {
2668 disp = dseg_add_unique_s4(cd, superindex);
2670 if (super == NULL) {
2671 /* If d == REG_ITMP2, then it's destroyed in check
2676 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2677 iptr->sx.s23.s3.c.ref, disp);
2679 if (opt_showdisassemble)
2685 emit_label_beq(cd, BRANCH_LABEL_3);
2688 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2689 M_LDR_INTERN(REG_ITMP3,
2690 REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2692 /* we put unresolved or non-immediate superindices onto dseg
2693 and do things slightly different */
2694 if ((super == NULL) || !IS_IMM(superindex)) {
2695 /* disp was computed before we added the patcher */
2696 M_DSEG_LOAD(REG_ITMP2, disp);
2697 M_CMP(REG_ITMP3, REG_ITMP2);
2699 if (d == REG_ITMP2) {
2706 /* this assumes something */
2707 assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2709 /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2710 assert(sizeof(methodptr*) == 4);
2711 M_SUB(REG_ITMP1, REG_ITMP1, REG_LSL(REG_ITMP2, 2));
2713 if (d == REG_ITMP2) {
2720 assert(IS_IMM(superindex));
2721 M_CMP_IMM(REG_ITMP3, superindex);
2725 s2 = OFFSET(vftbl_t, interfacetable[0]) -
2726 superindex * sizeof(methodptr*);
2730 M_LDR_INTERN(REG_ITMP3, REG_ITMP1, s2);
2731 M_TST(REG_ITMP3, REG_ITMP3);
2735 emit_label_br(cd, BRANCH_LABEL_4);
2737 emit_label(cd, BRANCH_LABEL_3);
2740 /* class checkcast code */
2742 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2743 if (super == NULL) {
2744 emit_label(cd, BRANCH_LABEL_2);
2746 disp = dseg_add_unique_address(cd, NULL);
2748 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2749 iptr->sx.s23.s3.c.ref, disp);
2751 if (opt_showdisassemble)
2755 disp = dseg_add_address(cd, super->vftbl);
2759 emit_label_beq(cd, BRANCH_LABEL_5);
2762 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2763 M_DSEG_LOAD(REG_ITMP2, disp);
2765 CODEGEN_CRITICAL_SECTION_START;
2767 M_LDR_INTERN(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2768 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2769 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2771 CODEGEN_CRITICAL_SECTION_END;
2773 M_SUB(REG_ITMP1, REG_ITMP1, REG_ITMP3);
2774 M_CMP(REG_ITMP1, REG_ITMP2);
2775 /* If d == REG_ITMP2, then it's destroyed */
2781 emit_label(cd, BRANCH_LABEL_5);
2784 if (super == NULL) {
2785 emit_label(cd, BRANCH_LABEL_1);
2786 emit_label(cd, BRANCH_LABEL_4);
2791 emit_store_dst(jd, iptr, d);
2794 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref */
2796 /* copy sizes to stack if necessary */
2798 MCODECHECK((iptr->s1.argcount << 1) + 64);
2800 for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2802 var = VAR(iptr->sx.s23.s2.args[s1]);
2804 /* copy SAVEDVAR sizes to stack */
2806 if (!(var->flags & PREALLOC)) {
2807 s2 = emit_load(jd, iptr, var, REG_ITMP1);
2808 M_STR(s2, REG_SP, s1 * 4);
2812 /* a0 = dimension count */
2814 assert(IS_IMM(iptr->s1.argcount));
2815 M_MOV_IMM(REG_A0, iptr->s1.argcount);
2817 /* is patcher function set? */
2819 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2820 disp = dseg_add_unique_address(cd, NULL);
2822 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2823 iptr->sx.s23.s3.c.ref, disp);
2825 if (opt_showdisassemble)
2829 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2831 /* a1 = arraydescriptor */
2833 M_DSEG_LOAD(REG_A1, disp);
2835 /* a2 = pointer to dimensions = stack pointer */
2837 M_INTMOVE(REG_SP, REG_A2);
2839 /* call builtin_multianewarray here */
2841 disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2842 M_DSEG_BRANCH(disp);
2846 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2849 /* check for exception before result assignment */
2851 emit_exception_check(cd, iptr);
2855 d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2856 M_INTMOVE(REG_RESULT, d);
2857 emit_store_dst(jd, iptr, d);
2860 case ICMD_CHECKNULL: /* ..., objectref ==> ..., objectref */
2862 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2863 emit_nullpointer_check(cd, iptr, s1);
2867 exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2870 } /* the big switch */
2872 } /* for all instructions */
2874 } /* for all basic blocks */
2876 dseg_createlinenumbertable(cd);
2879 /* generate traps */
2881 emit_patcher_traps(jd);
2883 /* everything's ok */
2889 /* codegen_emit_stub_compiler **************************************************
2891 Emits a stub routine which calls the compiler.
2893 *******************************************************************************/
2895 void codegen_emit_stub_compiler(jitdata *jd)
2900 /* get required compiler data */
2905 /* code for the stub */
2907 M_LDR_INTERN(REG_ITMP1, REG_PC, -(2 * 4 + 2 * SIZEOF_VOID_P));
2908 M_LDR_INTERN(REG_PC, REG_PC, -(3 * 4 + 3 * SIZEOF_VOID_P));
2912 /* codegen_emit_stub_builtin ***************************************************
2914 Emits a stub routine which calls a builtin function.
2916 *******************************************************************************/
2918 void codegen_emit_stub_builtin(jitdata *jd, builtintable_entry *bte)
2927 /* get required compiler data */
2932 /* set some variables */
2936 /* calculate stack frame size */
2938 cd->stackframesize =
2939 SIZEOF_VOID_P + /* return address */
2940 sizeof(stackframeinfo); /* stackframeinfo */
2942 /* align stack to 8-byte */
2944 cd->stackframesize = (cd->stackframesize + 4) & ~4;
2946 /* create method header */
2948 (void) dseg_add_unique_address(cd, code); /* CodeinfoPointer */
2949 (void) dseg_add_unique_s4(cd, cd->stackframesize); /* FrameSize */
2950 (void) dseg_add_unique_s4(cd, 0); /* IsSync */
2951 (void) dseg_add_unique_s4(cd, 0); /* IsLeaf */
2952 (void) dseg_add_unique_s4(cd, 0); /* IntSave */
2953 (void) dseg_add_unique_s4(cd, 0); /* FltSave */
2954 (void) dseg_addlinenumbertablesize(cd);
2955 (void) dseg_add_unique_s4(cd, 0); /* ExTableSize */
2957 /* generate stub code */
2959 M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
2960 M_STMFD(1<<REG_LR, REG_SP);
2962 #if defined(ENABLE_GC_CACAO)
2963 /* Save callee saved integer registers in stackframeinfo (GC may
2964 need to recover them during a collection). */
2966 disp = cd->stackframesize - sizeof(stackframeinfo) +
2967 OFFSET(stackframeinfo, intregs);
2969 for (i = 0; i < INT_SAV_CNT; i++)
2970 M_STR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
2973 /* Save integer and float argument registers (these are 4
2974 registers, stack is 8-byte aligned). */
2976 M_STMFD(BITMASK_ARGS, REG_SP);
2978 /* create builtin stackframe info */
2980 assert(IS_IMM(4*4 + cd->stackframesize));
2981 M_ADD_IMM(REG_A0, REG_SP, 4*4 + cd->stackframesize);
2982 M_MOV(REG_A1, REG_PV);
2983 M_ADD_IMM(REG_A2, REG_SP, 4*4 + cd->stackframesize);
2984 M_LDR_INTERN(REG_A3, REG_SP, 4*4);
2985 disp = dseg_add_functionptr(cd, codegen_stub_builtin_enter);
2986 M_DSEG_BRANCH(disp);
2988 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2991 /* Restore integer and float argument registers (these are 4
2992 registers, stack is 8-byte aligned). */
2994 M_LDMFD(BITMASK_ARGS, REG_SP);
2996 /* builtins are allowed to have 4 arguments max */
2998 assert(md->paramcount <= 4);
2999 for (i = 0; i < md->paramcount; i++) {
3000 assert(!IS_2_WORD_TYPE(md->paramtypes[i].type));
3003 /* call the builtin function */
3005 disp = dseg_add_functionptr(cd, bte->fp);
3006 M_DSEG_BRANCH(disp);
3010 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3013 /* save return value */
3015 assert(!IS_FLT_DBL_TYPE(md->returntype.type));
3016 M_STMFD(BITMASK_RESULT, REG_SP);
3018 /* remove builtin stackframe info */
3020 M_ADD_IMM(REG_A0, REG_SP, 2*4 + cd->stackframesize);
3021 disp = dseg_add_functionptr(cd, codegen_stub_builtin_exit);
3022 M_DSEG_BRANCH(disp);
3023 /*s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3024 M_RECOMPUTE_PV(s1);*/
3026 /* restore return value */
3028 M_LDMFD(BITMASK_RESULT, REG_SP);
3030 #if defined(ENABLE_GC_CACAO)
3031 /* Restore callee saved integer registers from stackframeinfo (GC
3032 might have modified them during a collection). */
3034 disp = cd->stackframesize - sizeof(stackframeinfo) +
3035 OFFSET(stackframeinfo, intregs);
3037 for (i = 0; i < INT_SAV_CNT; i++)
3038 M_LDR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
3041 /* remove stackframe and return */
3043 M_LDMFD(1<<REG_LR, REG_SP);
3044 M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
3045 M_MOV(REG_PC, REG_LR);
3049 /* codegen_emit_stub_native ****************************************************
3051 Emits a stub routine which calls a native method.
3053 *******************************************************************************/
3055 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
3064 s4 disp, funcdisp, s1, s2;
3066 /* get required compiler data */
3072 /* initialize variables */
3075 nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
3077 /* calculate stackframe size */
3079 cd->stackframesize =
3080 4 + /* return address */
3081 sizeof(stackframeinfo) + /* stackframeinfo */
3082 sizeof(localref_table) + /* localref_table */
3083 nmd->memuse * 4; /* stack arguments */
3085 /* align stack to 8-byte */
3087 cd->stackframesize = (cd->stackframesize + 4) & ~4;
3089 /* create method header */
3091 (void) dseg_add_unique_address(cd, code); /* CodeinfoPointer */
3092 (void) dseg_add_unique_s4(cd, cd->stackframesize); /* FrameSize */
3093 (void) dseg_add_unique_s4(cd, 0); /* IsSync */
3094 (void) dseg_add_unique_s4(cd, 0); /* IsLeaf */
3095 (void) dseg_add_unique_s4(cd, 0); /* IntSave */
3096 (void) dseg_add_unique_s4(cd, 0); /* FltSave */
3097 (void) dseg_addlinenumbertablesize(cd);
3098 (void) dseg_add_unique_s4(cd, 0); /* ExTableSize */
3100 /* generate stub code */
3102 M_STMFD(1<<REG_LR, REG_SP);
3103 M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
3105 #if !defined(NDEBUG)
3106 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3107 emit_verbosecall_enter(jd);
3110 /* get function address (this must happen before the stackframeinfo) */
3112 funcdisp = dseg_add_functionptr(cd, f);
3114 #if !defined(WITH_STATIC_CLASSPATH)
3116 patcher_add_patch_ref(jd, PATCHER_resolve_native_function, m, funcdisp);
3118 if (opt_showdisassemble)
3123 #if defined(ENABLE_GC_CACAO)
3124 /* Save callee saved integer registers in stackframeinfo (GC may
3125 need to recover them during a collection). */
3127 disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo) +
3128 OFFSET(stackframeinfo, intregs);
3130 for (i = 0; i < INT_SAV_CNT; i++)
3131 M_STR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
3134 /* Save integer and float argument registers (these are 4
3135 registers, stack is 8-byte aligned). */
3137 M_STMFD(BITMASK_ARGS, REG_SP);
3138 /* TODO: floating point */
3140 /* create native stackframe info */
3142 assert(IS_IMM(4*4 + cd->stackframesize));
3143 M_ADD_IMM(REG_A0, REG_SP, 4*4 + cd->stackframesize - SIZEOF_VOID_P);
3144 M_MOV(REG_A1, REG_PV);
3145 M_ADD_IMM(REG_A2, REG_SP, 4*4 + cd->stackframesize);
3146 M_LDR_INTERN(REG_A3, REG_SP, 4*4 + cd->stackframesize - SIZEOF_VOID_P);
3147 disp = dseg_add_functionptr(cd, codegen_start_native_call);
3148 M_DSEG_BRANCH(disp);
3152 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3155 /* Restore integer and float argument registers (these are 4
3156 registers, stack is 8-byte aligned). */
3158 M_LDMFD(BITMASK_ARGS, REG_SP);
3159 /* TODO: floating point */
3161 /* copy or spill arguments to new locations */
3162 /* ATTENTION: the ARM has only integer argument registers! */
3164 for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
3165 t = md->paramtypes[i].type;
3167 if (!md->params[i].inmemory) {
3168 s1 = md->params[i].regoff;
3169 s2 = nmd->params[j].regoff;
3171 if (!nmd->params[j].inmemory) {
3172 #if !defined(__ARM_EABI__)
3173 SPLIT_OPEN(t, s2, REG_ITMP1);
3176 if (IS_2_WORD_TYPE(t))
3181 #if !defined(__ARM_EABI__)
3182 SPLIT_STORE_AND_CLOSE(t, s2, 0);
3186 if (IS_2_WORD_TYPE(t))
3187 M_LST(s1, REG_SP, s2);
3189 M_IST(s1, REG_SP, s2);
3193 s1 = md->params[i].regoff + cd->stackframesize;
3194 s2 = nmd->params[j].regoff;
3196 if (IS_2_WORD_TYPE(t)) {
3197 M_LLD(REG_ITMP12_PACKED, REG_SP, s1);
3198 M_LST(REG_ITMP12_PACKED, REG_SP, s2);
3201 M_ILD(REG_ITMP1, REG_SP, s1);
3202 M_IST(REG_ITMP1, REG_SP, s2);
3207 /* put class into second argument register */
3209 if (m->flags & ACC_STATIC) {
3210 disp = dseg_add_address(cd, m->class);
3211 M_DSEG_LOAD(REG_A1, disp);
3214 /* put env into first argument register */
3216 disp = dseg_add_address(cd, _Jv_env);
3217 M_DSEG_LOAD(REG_A0, disp);
3219 /* do the native function call */
3221 M_DSEG_BRANCH(funcdisp);
3224 /* TODO: this is only needed because of the tracer ... do we
3227 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3230 #if !defined(__SOFTFP__)
3231 /* TODO: this is only a hack, since we use R0/R1 for float return! */
3232 /* this depends on gcc; it is independent from our ENABLE_SOFTFLOAT define */
3233 if (md->returntype.type != TYPE_VOID && IS_FLT_DBL_TYPE(md->returntype.type)) {
3234 #if 0 && !defined(NDEBUG)
3235 dolog("NATIVESTUB that returns float or double (%s.%s)", m->class->name->text, m->name->text);
3237 /* we cannot use this macro, since it is not defined in ENABLE_SOFTFLOAT */
3238 /* M_CAST_FLT_TO_INT_TYPED(md->returntype.type, REG_FRESULT, REG_RESULT_TYPED(md->returntype.type)); */
3239 if (IS_2_WORD_TYPE(md->returntype.type)) {
3240 DCD(0xed2d8102); /* stfd f0, [sp, #-8]! */
3241 M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
3243 DCD(0xed2d0101); /* stfs f0, [sp, #-4]!*/
3244 M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
3249 #if !defined(NDEBUG)
3250 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3251 emit_verbosecall_exit(jd);
3254 /* remove native stackframe info */
3255 /* TODO: improve this store/load */
3257 M_STMFD(BITMASK_RESULT, REG_SP);
3259 M_ADD_IMM(REG_A0, REG_SP, 2*4 + cd->stackframesize - SIZEOF_VOID_P);
3260 disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3261 M_DSEG_BRANCH(disp);
3262 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3265 M_MOV(REG_ITMP1_XPTR, REG_RESULT);
3266 M_LDMFD(BITMASK_RESULT, REG_SP);
3268 #if defined(ENABLE_GC_CACAO)
3269 /* restore callee saved int registers from stackframeinfo (GC might have */
3270 /* modified them during a collection). */
3272 disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo) +
3273 OFFSET(stackframeinfo, intregs);
3275 for (i = 0; i < INT_SAV_CNT; i++)
3276 M_LDR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
3279 /* finish stub code, but do not yet return to caller */
3281 M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
3282 M_LDMFD(1<<REG_LR, REG_SP);
3284 /* check for exception */
3286 M_TST(REG_ITMP1_XPTR, REG_ITMP1_XPTR);
3287 M_MOVEQ(REG_LR, REG_PC); /* if no exception, return to caller */
3289 /* handle exception here */
3291 M_SUB_IMM(REG_ITMP2_XPC, REG_LR, 4);/* move fault address into xpc */
3293 disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3294 M_DSEG_LOAD(REG_ITMP3, disp); /* load asm exception handler address */
3295 M_MOV(REG_PC, REG_ITMP3); /* jump to asm exception handler */
3297 /* generate patcher stubs */
3299 emit_patcher_traps(jd);
3303 /* asm_debug *******************************************************************
3307 *******************************************************************************/
3309 void asm_debug(int a1, int a2, int a3, int a4)
3311 printf("===> i am going to exit after this debugging message!\n");
3312 printf("got asm_debug(%p, %p, %p, %p)\n",(void*)a1,(void*)a2,(void*)a3,(void*)a4);
3313 vm_abort("leave you now");
3318 * These are local overrides for various environment variables in Emacs.
3319 * Please do not remove this and leave it at the end of the file, where
3320 * Emacs will automagically detect them.
3321 * ---------------------------------------------------------------------
3324 * indent-tabs-mode: t
3328 * vim:noexpandtab:sw=4:ts=4: