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
37 #include "vm/jit/arm/arch.h"
38 #include "vm/jit/arm/codegen.h"
40 #include "mm/memory.h"
42 #include "native/localref.h"
43 #include "native/native.h"
45 #include "threads/lock-common.h"
47 #include "vm/builtin.h"
48 #include "vm/exceptions.h"
49 #include "vm/global.h"
52 #include "vm/jit/abi.h"
53 #include "vm/jit/asmpart.h"
54 #include "vm/jit/codegen-common.h"
55 #include "vm/jit/dseg.h"
56 #include "vm/jit/emit-common.h"
57 #include "vm/jit/jit.h"
58 #include "vm/jit/md.h"
59 #include "vm/jit/methodheader.h"
60 #include "vm/jit/parse.h"
61 #include "vm/jit/patcher-common.h"
62 #include "vm/jit/reg.h"
64 #if defined(ENABLE_LSRA)
65 #include "vm/jit/allocator/lsra.h"
68 #include "vmcore/loader.h"
69 #include "vmcore/options.h"
72 /* codegen_emit ****************************************************************
74 Generates machine code.
76 *******************************************************************************/
78 bool codegen_emit(jitdata *jd)
97 methodinfo *lm; /* local methodinfo for ICMD_INVOKE* */
98 unresolved_method *um;
99 builtintable_entry *bte;
102 unresolved_field *uf;
106 /* get required compiler data */
113 /* prevent compiler warnings */
121 /* space to save used callee saved registers */
123 savedregs_num = (jd->isleafmethod) ? 0 : 1; /* space to save the LR */
124 savedregs_num += (INT_SAV_CNT - rd->savintreguse);
125 /*savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);*/
126 assert((FLT_SAV_CNT - rd->savfltreguse) == 0);
128 spilledregs_num = rd->memuse;
130 #if defined(ENABLE_THREADS) /* space to save argument of monitor_enter */
131 if (checksync && (m->flags & ACC_SYNCHRONIZED))
135 cd->stackframesize = spilledregs_num * 8 + savedregs_num * 4;
137 /* XXX QUICK FIX: We shouldn't align the stack in Java code, but
138 only in native stubs. */
139 /* align stack to 8-byte */
141 cd->stackframesize = (cd->stackframesize + 4) & ~4;
143 /* SECTION: Method Header */
144 /* create method header */
146 (void) dseg_add_unique_address(cd, code); /* CodeinfoPointer */
147 (void) dseg_add_unique_s4(cd, cd->stackframesize); /* FrameSize */
149 #if defined(ENABLE_THREADS)
150 /* IsSync contains the offset relative to the stack pointer for the
151 argument of monitor_exit used in the exception handler. Since the
152 offset could be zero and give a wrong meaning of the flag it is
156 if (checksync && (m->flags & ACC_SYNCHRONIZED))
157 (void) dseg_add_unique_s4(cd, rd->memuse * 8 + 4);/* IsSync */
160 (void) dseg_add_unique_s4(cd, 0); /* IsSync */
162 (void) dseg_add_unique_s4(cd, jd->isleafmethod); /* IsLeaf */
163 (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
164 (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
165 (void) dseg_addlinenumbertablesize(cd);
166 (void) dseg_add_unique_s4(cd, jd->exceptiontablelength); /* ExTableSize */
168 /* create exception table */
170 for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
171 dseg_add_target(cd, ex->start);
172 dseg_add_target(cd, ex->end);
173 dseg_add_target(cd, ex->handler);
174 (void) dseg_add_unique_address(cd, ex->catchtype.any);
177 /* save return address and used callee saved registers */
179 savedregs_bitmask = 0;
181 if (!jd->isleafmethod)
182 savedregs_bitmask = (1<<REG_LR);
184 for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--)
185 savedregs_bitmask |= (1<<(rd->savintregs[i]));
188 for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
189 log_text("!!! CODEGEN: floating-point callee saved registers are not saved to stack (SEVERE! STACK IS MESSED UP!)");
190 /* TODO: floating-point */
194 if (savedregs_bitmask)
195 M_STMFD(savedregs_bitmask, REG_SP);
197 /* create additional stack frame for spilled variables (if necessary) */
199 if ((cd->stackframesize / 4 - savedregs_num) > 0)
200 M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
202 /* take arguments out of register or stack frame */
205 for (i = 0, len = 0; i < md->paramcount; i++) {
206 s1 = md->params[i].regoff;
207 t = md->paramtypes[i].type;
209 varindex = jd->local_map[len * 5 + t];
211 len += (IS_2_WORD_TYPE(t)) ? 2 : 1; /* 2 word type arguments */
213 if (varindex == UNUSED)
218 /* ATTENTION: we use interger registers for all arguments (even float) */
219 #if !defined(ENABLE_SOFTFLOAT)
220 if (IS_INT_LNG_TYPE(t)) {
222 if (!md->params[i].inmemory) {
223 if (!(var->flags & INMEMORY)) {
224 if (IS_2_WORD_TYPE(t))
225 M_LNGMOVE(s1, var->vv.regoff);
227 M_INTMOVE(s1, var->vv.regoff);
230 if (IS_2_WORD_TYPE(t))
231 M_LST(s1, REG_SP, var->vv.regoff);
233 M_IST(s1, REG_SP, var->vv.regoff);
236 else { /* stack arguments */
237 if (!(var->flags & INMEMORY)) { /* stack arg -> register */
238 if (IS_2_WORD_TYPE(t))
239 M_LLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
241 M_ILD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
243 else { /* stack arg -> spilled */
244 /* Reuse Memory Position on Caller Stack */
245 var->vv.regoff = cd->stackframesize + s1;
248 #if !defined(ENABLE_SOFTFLOAT)
251 if (!md->params[i].inmemory) {
252 if (!(var->flags & INMEMORY)) {
253 M_CAST_INT_TO_FLT_TYPED(t, s1, var->vv.regoff);
256 if (IS_2_WORD_TYPE(t))
257 M_LST(s1, REG_SP, var->vv.regoff);
259 M_IST(s1, REG_SP, var->vv.regoff);
263 if (!(var->flags & INMEMORY)) {
264 if (IS_2_WORD_TYPE(t))
265 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
267 M_FLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
270 /* Reuse Memory Position on Caller Stack */
271 var->vv.regoff = cd->stackframesize + s1;
275 #endif /* !defined(ENABLE_SOFTFLOAT) */
278 #if defined(ENABLE_THREADS)
279 /* call monitorenter function */
281 if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
282 /* stack offset for monitor argument */
286 # if !defined(NDEBUG)
287 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
288 M_STMFD(BITMASK_ARGS, REG_SP);
293 /* get the correct lock object */
295 if (m->flags & ACC_STATIC) {
296 disp = dseg_add_address(cd, &m->class->object.header);
297 M_DSEG_LOAD(REG_A0, disp);
300 emit_nullpointer_check_force(cd, iptr, REG_A0);
303 M_STR(REG_A0, REG_SP, s1);
304 disp = dseg_add_functionptr(cd, LOCK_monitor_enter);
306 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
309 # if !defined(NDEBUG)
310 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
311 M_LDMFD(BITMASK_ARGS, REG_SP);
317 /* call trace function */
319 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
320 emit_verbosecall_enter(jd);
323 /* end of header generation */
325 /* create replacement points */
326 REPLACEMENT_POINTS_INIT(cd, jd);
328 /* SECTION: ICMD Code Generation */
329 /* for all basic blocks */
331 for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
333 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
335 /* is this basic block reached? */
337 if (bptr->flags < BBREACHED)
340 /* branch resolving */
342 codegen_resolve_branchrefs(cd, bptr);
344 /* handle replacement points */
345 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
347 /* copy interface registers to their destination */
353 #if defined(ENABLE_LSRA)
357 var = VAR(bptr->invars[len]);
358 if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
359 if (!(var->flags & INMEMORY))
363 M_INTMOVE(REG_ITMP1, d);
364 emit_store(jd, NULL, var, d);
371 var = VAR(bptr->invars[len]);
373 if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
374 d = codegen_reg_of_var(0, var, REG_ITMP1);
375 M_INTMOVE(REG_ITMP1, d);
376 emit_store(jd, NULL, var, d);
379 assert((var->flags & INOUT));
382 #if defined(ENABLE_LSRA)
386 /* for all instructions */
389 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
391 /* add line number */
392 if (iptr->line != currentline) {
393 dseg_addlinenumber(cd, iptr->line);
394 currentline = iptr->line;
397 MCODECHECK(64); /* an instruction usually needs < 64 words */
401 case ICMD_NOP: /* ... ==> ... */
404 /* constant operations ************************************************/
406 case ICMD_ICONST: /* ... ==> ..., constant */
408 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
409 ICONST(d, iptr->sx.val.i);
410 emit_store_dst(jd, iptr, d);
413 case ICMD_ACONST: /* ... ==> ..., constant */
415 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
416 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
417 disp = dseg_add_unique_address(cd, NULL);
419 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
420 iptr->sx.val.c.ref, disp);
422 if (opt_showdisassemble)
425 M_DSEG_LOAD(d, disp);
428 ICONST(d, (u4) iptr->sx.val.anyptr);
430 emit_store_dst(jd, iptr, d);
433 case ICMD_LCONST: /* ... ==> ..., constant */
435 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
436 LCONST(d, iptr->sx.val.l);
437 emit_store_dst(jd, iptr, d);
440 case ICMD_FCONST: /* ... ==> ..., constant */
442 #if defined(ENABLE_SOFTFLOAT)
443 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
444 ICONST(d, iptr->sx.val.i);
445 emit_store_dst(jd, iptr, d);
447 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
448 FCONST(d, iptr->sx.val.f);
449 emit_store_dst(jd, iptr, d);
453 case ICMD_DCONST: /* ... ==> ..., constant */
455 #if defined(ENABLE_SOFTFLOAT)
456 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
457 LCONST(d, iptr->sx.val.l);
458 emit_store_dst(jd, iptr, d);
460 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
461 DCONST(d, iptr->sx.val.d);
462 emit_store_dst(jd, iptr, d);
467 /* load/store/copy/move operations ************************************/
469 case ICMD_ILOAD: /* ... ==> ..., content of local variable */
470 case ICMD_ALOAD: /* op1 = local variable */
474 case ICMD_ISTORE: /* ..., value ==> ... */
485 if (!(iptr->flags.bits & INS_FLAG_RETADDR))
489 /* pop operations *****************************************************/
491 /* attention: double and longs are only one entry in CACAO ICMDs */
493 case ICMD_POP: /* ..., value ==> ... */
494 case ICMD_POP2: /* ..., value, value ==> ... */
499 /* integer operations *************************************************/
501 case ICMD_INT2BYTE: /* ..., value ==> ..., value */
503 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
504 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
505 M_MOV(d, REG_LSL(s1, 24));
506 M_MOV(d, REG_ASR(d, 24));
507 emit_store_dst(jd, iptr, d);
510 case ICMD_INT2CHAR: /* ..., value ==> ..., value */
512 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
513 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
514 M_MOV(d, REG_LSL(s1, 16));
515 M_MOV(d, REG_LSR(d, 16)); /* ATTENTION: char is unsigned */
516 emit_store_dst(jd, iptr, d);
519 case ICMD_INT2SHORT: /* ..., value ==> ..., value */
521 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
522 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
523 M_MOV(d, REG_LSL(s1, 16));
524 M_MOV(d, REG_ASR(d, 16));
525 emit_store_dst(jd, iptr, d);
528 case ICMD_I2L: /* ..., value ==> ..., value */
530 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
531 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
532 M_INTMOVE(s1, GET_LOW_REG(d));
533 M_MOV(GET_HIGH_REG(d), REG_ASR(s1, 31));
534 emit_store_dst(jd, iptr, d);
537 case ICMD_L2I: /* ..., value ==> ..., value */
539 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
540 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
542 emit_store_dst(jd, iptr, d);
545 case ICMD_INEG: /* ..., value ==> ..., - value */
547 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
548 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
550 emit_store_dst(jd, iptr, d);
553 case ICMD_LNEG: /* ..., value ==> ..., - value */
555 s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
556 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
557 M_RSB_IMMS(GET_LOW_REG(d), GET_LOW_REG(s1), 0);
558 M_RSC_IMM(GET_HIGH_REG(d), GET_HIGH_REG(s1), 0);
559 emit_store_dst(jd, iptr, d);
562 case ICMD_IADD: /* ..., val1, val2 ==> ..., val1 + val2 */
564 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
565 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
566 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
568 emit_store_dst(jd, iptr, d);
571 case ICMD_LADD: /* ..., val1, val2 ==> ..., val1 + val2 */
573 s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
574 s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
575 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
576 M_ADD_S(GET_LOW_REG(d), s1, s2);
577 s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
578 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
579 M_ADC(GET_HIGH_REG(d), s1, s2);
580 emit_store_dst(jd, iptr, d);
586 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
587 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
589 if (IS_IMM(iptr->sx.val.i)) {
590 M_ADD_IMM(d, s1, iptr->sx.val.i);
591 } else if (IS_IMM(-iptr->sx.val.i)) {
592 M_SUB_IMM(d, s1, (-iptr->sx.val.i));
594 ICONST(REG_ITMP3, iptr->sx.val.i);
595 M_ADD(d, s1, REG_ITMP3);
598 emit_store_dst(jd, iptr, d);
601 case ICMD_LADDCONST: /* ..., value ==> ..., value + constant */
602 /* sx.val.l = constant */
604 s3 = iptr->sx.val.l & 0xffffffff;
605 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
606 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
608 M_ADD_IMMS(GET_LOW_REG(d), s1, s3);
610 ICONST(REG_ITMP3, s3);
611 M_ADD_S(GET_LOW_REG(d), s1, REG_ITMP3);
613 s3 = iptr->sx.val.l >> 32;
614 s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
616 M_ADC_IMM(GET_HIGH_REG(d), s1, s3);
618 ICONST(REG_ITMP3, s3);
619 M_ADC(GET_HIGH_REG(d), s1, REG_ITMP3);
621 emit_store_dst(jd, iptr, d);
624 case ICMD_ISUB: /* ..., val1, val2 ==> ..., val1 - val2 */
626 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
627 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
628 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
630 emit_store_dst(jd, iptr, d);
633 case ICMD_LSUB: /* ..., val1, val2 ==> ..., val1 - val2 */
635 s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
636 s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
637 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
638 M_SUB_S(GET_LOW_REG(d), s1, s2);
639 s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
640 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
641 M_SBC(GET_HIGH_REG(d), s1, s2);
642 emit_store_dst(jd, iptr, d);
645 case ICMD_ISUBCONST: /* ..., value ==> ..., value + constant */
646 /* sx.val.i = constant */
648 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
649 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
650 if (IS_IMM(iptr->sx.val.i))
651 M_SUB_IMM(d, s1, iptr->sx.val.i);
653 ICONST(REG_ITMP3, iptr->sx.val.i);
654 M_SUB(d, s1, REG_ITMP3);
656 emit_store_dst(jd, iptr, d);
659 case ICMD_LSUBCONST: /* ..., value ==> ..., value - constant */
660 /* sx.val.l = constant */
662 s3 = iptr->sx.val.l & 0xffffffff;
663 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
664 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
666 M_SUB_IMMS(GET_LOW_REG(d), s1, s3);
668 ICONST(REG_ITMP3, s3);
669 M_SUB_S(GET_LOW_REG(d), s1, REG_ITMP3);
671 s3 = iptr->sx.val.l >> 32;
672 s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
674 M_SBC_IMM(GET_HIGH_REG(d), s1, s3);
676 ICONST(REG_ITMP3, s3);
677 M_SBC(GET_HIGH_REG(d), s1, REG_ITMP3);
679 emit_store_dst(jd, iptr, d);
682 case ICMD_IMUL: /* ..., val1, val2 ==> ..., val1 * val2 */
684 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
685 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
686 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
688 emit_store_dst(jd, iptr, d);
691 case ICMD_IDIV: /* ..., val1, val2 ==> ..., val1 / val2 */
692 case ICMD_IREM: /* ..., val1, val2 ==> ..., val1 % val2 */
694 s1 = emit_load_s1(jd, iptr, REG_A0);
695 s2 = emit_load_s2(jd, iptr, REG_A1);
696 emit_arithmetic_check(cd, iptr, s2);
698 /* move arguments into argument registers */
699 M_INTMOVE(s1, REG_A0);
700 M_INTMOVE(s2, REG_A1);
702 /* call builtin function */
703 bte = iptr->sx.s23.s3.bte;
704 disp = dseg_add_functionptr(cd, bte->fp);
708 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
711 /* move result into destination register */
712 d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
713 M_INTMOVE(REG_RESULT, d);
714 emit_store_dst(jd, iptr, d);
717 case ICMD_LDIV: /* ..., val1, val2 ==> ..., val1 / val2 */
718 case ICMD_LREM: /* ..., val1, val2 ==> ..., val1 % val2 */
720 /* move arguments into argument registers */
722 s1 = emit_load_s1(jd, iptr, REG_A0_A1_PACKED);
723 s2 = emit_load_s2(jd, iptr, REG_A2_A3_PACKED);
724 /* XXX TODO: only do this if arithmetic check is really done! */
725 M_ORR(GET_HIGH_REG(s2), GET_LOW_REG(s2), REG_ITMP3);
726 emit_arithmetic_check(cd, iptr, REG_ITMP3);
728 M_LNGMOVE(s1, REG_A0_A1_PACKED);
729 M_LNGMOVE(s2, REG_A2_A3_PACKED);
731 /* call builtin function */
732 bte = iptr->sx.s23.s3.bte;
733 disp = dseg_add_functionptr(cd, bte->fp);
737 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
740 /* move result into destination register */
741 d = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
742 M_LNGMOVE(REG_RESULT_PACKED, d);
743 emit_store_dst(jd, iptr, d);
746 case ICMD_IMULPOW2: /* ..., value ==> ..., value * (2 ^ constant) */
747 /* sx.val.i = constant */
749 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
750 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
751 M_MOV(d, REG_LSL(s1, iptr->sx.val.i));
752 emit_store_dst(jd, iptr, d);
755 case ICMD_IDIVPOW2: /* ..., value ==> ..., value / (2 ^ constant) */
756 /* sx.val.i = constant */
758 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
759 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
760 /* this rounds towards 0 as java likes it */
761 M_MOV(REG_ITMP3, REG_ASR(s1, 31));
762 M_ADD(REG_ITMP3, s1, REG_LSR(REG_ITMP3, 32 - iptr->sx.val.i));
763 M_MOV(d, REG_ASR(REG_ITMP3, iptr->sx.val.i));
764 /* this rounds towards nearest, not java style */
765 /*M_MOV_S(d, REG_ASR(s1, iptr->sx.val.i));
766 M_ADCMI_IMM(d, d, 0);*/
767 emit_store_dst(jd, iptr, d);
770 case ICMD_IREMPOW2: /* ..., value ==> ..., value % constant */
771 /* sx.val.i = constant [ (2 ^ x) - 1 ] */
773 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
774 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
775 M_MOV_S(REG_ITMP1, s1);
776 M_RSBMI_IMM(REG_ITMP1, REG_ITMP1, 0);
777 if (IS_IMM(iptr->sx.val.i))
778 M_AND_IMM(REG_ITMP1, iptr->sx.val.i, d);
780 ICONST(REG_ITMP3, iptr->sx.val.i);
781 M_AND(REG_ITMP1, REG_ITMP3, d);
783 M_RSBMI_IMM(d, d, 0);
784 emit_store_dst(jd, iptr, d);
787 case ICMD_ISHL: /* ..., val1, val2 ==> ..., val1 << val2 */
789 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
790 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
791 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
792 M_AND_IMM(s2, 0x1f, REG_ITMP2);
793 M_MOV(d, REG_LSL_REG(s1, REG_ITMP2));
794 emit_store_dst(jd, iptr, d);
797 case ICMD_ISHR: /* ..., val1, val2 ==> ..., val1 >> val2 */
799 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
800 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
801 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
802 M_AND_IMM(s2, 0x1f, REG_ITMP2);
803 M_MOV(d, REG_ASR_REG(s1, REG_ITMP2));
804 emit_store_dst(jd, iptr, d);
807 case ICMD_IUSHR: /* ..., val1, val2 ==> ..., val1 >>> val2 */
809 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
810 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
811 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
812 M_AND_IMM(s2, 0x1f, REG_ITMP2);
813 M_MOV(d, REG_LSR_REG(s1, REG_ITMP2));
814 emit_store_dst(jd, iptr, d);
817 case ICMD_ISHLCONST: /* ..., value ==> ..., value << constant */
818 /* sx.val.i = constant */
820 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
821 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
822 M_MOV(d, REG_LSL(s1, iptr->sx.val.i & 0x1f));
823 emit_store_dst(jd, iptr, d);
826 case ICMD_ISHRCONST: /* ..., value ==> ..., value >> constant */
827 /* sx.val.i = constant */
829 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
830 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
831 /* we need to check for zero here because arm interprets it as SHR by 32 */
832 if ((iptr->sx.val.i & 0x1f) == 0) {
835 M_MOV(d, REG_ASR(s1, iptr->sx.val.i & 0x1f));
837 emit_store_dst(jd, iptr, d);
840 case ICMD_IUSHRCONST: /* ..., 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_LSR(s1, iptr->sx.val.i & 0x1f));
850 emit_store_dst(jd, iptr, d);
853 case ICMD_IAND: /* ..., val1, val2 ==> ..., val1 & val2 */
855 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
856 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
857 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
859 emit_store_dst(jd, iptr, d);
862 case ICMD_LAND: /* ..., val1, val2 ==> ..., val1 & val2 */
864 s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
865 s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
866 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
867 M_AND(s1, s2, GET_LOW_REG(d));
868 s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
869 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
870 M_AND(s1, s2, GET_HIGH_REG(d));
871 emit_store_dst(jd, iptr, d);
874 case ICMD_IOR: /* ..., val1, val2 ==> ..., val1 | val2 */
876 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
877 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
878 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
880 emit_store_dst(jd, iptr, d);
883 case ICMD_LOR: /* ..., val1, val2 ==> ..., val1 | val2 */
885 s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
886 s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
887 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
888 M_ORR(s1, s2, GET_LOW_REG(d));
889 s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
890 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
891 M_ORR(s1, s2, GET_HIGH_REG(d));
892 emit_store_dst(jd, iptr, d);
895 case ICMD_IXOR: /* ..., val1, val2 ==> ..., val1 ^ val2 */
897 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
898 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
899 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
901 emit_store_dst(jd, iptr, d);
904 case ICMD_LXOR: /* ..., val1, val2 ==> ..., val1 ^ val2 */
906 s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
907 s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
908 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
909 M_EOR(s1, s2, GET_LOW_REG(d));
910 s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
911 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
912 M_EOR(s1, s2, GET_HIGH_REG(d));
913 emit_store_dst(jd, iptr, d);
917 /* floating operations ************************************************/
919 #if !defined(ENABLE_SOFTFLOAT)
921 case ICMD_FNEG: /* ..., value ==> ..., - value */
923 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
924 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
926 emit_store_dst(jd, iptr, d);
929 case ICMD_FADD: /* ..., val1, val2 ==> ..., val1 + val2 */
931 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
932 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
933 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
935 emit_store_dst(jd, iptr, d);
938 case ICMD_FSUB: /* ..., val1, val2 ==> ..., val1 - val2 */
940 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
941 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
942 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
944 emit_store_dst(jd, iptr, d);
947 case ICMD_FMUL: /* ..., val1, val2 ==> ..., val1 * val2 */
949 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
950 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
951 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
953 emit_store_dst(jd, iptr, d);
956 case ICMD_FDIV: /* ..., val1, val2 ==> ..., val1 / val2 */
957 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
958 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
959 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
961 emit_store_dst(jd, iptr, d);
964 /* ATTENTION: Jave does not want IEEE behaviour in FREM, do
967 case ICMD_FREM: /* ..., val1, val2 ==> ..., val1 % val2 */
969 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
970 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
971 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
973 emit_store_dst(jd, iptr, d);
976 case ICMD_DNEG: /* ..., value ==> ..., - value */
978 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
979 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
981 emit_store_dst(jd, iptr, d);
984 case ICMD_DADD: /* ..., val1, val2 ==> ..., val1 + val2 */
986 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
987 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
988 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
990 emit_store_dst(jd, iptr, d);
993 case ICMD_DSUB: /* ..., val1, val2 ==> ..., val1 - val2 */
995 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
996 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
997 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
999 emit_store_dst(jd, iptr, d);
1002 case ICMD_DMUL: /* ..., val1, val2 ==> ..., val1 * val2 */
1004 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1005 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1006 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1008 emit_store_dst(jd, iptr, d);
1011 case ICMD_DDIV: /* ..., val1, val2 ==> ..., val1 / val2 */
1013 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1014 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1015 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1017 emit_store_dst(jd, iptr, d);
1020 /* ATTENTION: Jave does not want IEEE behaviour in DREM, do
1023 case ICMD_DREM: /* ..., val1, val2 ==> ..., val1 % val2 */
1025 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1026 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1027 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1029 emit_store_dst(jd, iptr, d);
1032 case ICMD_I2F: /* ..., value ==> ..., (float) value */
1034 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1035 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1037 emit_store_dst(jd, iptr, d);
1040 case ICMD_I2D: /* ..., value ==> ..., (double) value */
1042 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1043 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1045 emit_store_dst(jd, iptr, d);
1048 case ICMD_F2I: /* ..., value ==> ..., (int) value */
1050 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1051 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1052 /* this uses round towards zero, as Java likes it */
1054 /* this checks for NaN; to return zero as Java likes it */
1057 emit_store_dst(jd, iptr, d);
1060 case ICMD_D2I: /* ..., value ==> ..., (int) value */
1062 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1063 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1064 /* this uses round towards zero, as Java likes it */
1066 /* this checks for NaN; to return zero as Java likes it */
1069 emit_store_dst(jd, iptr, d);
1072 case ICMD_D2F: /* ..., value ==> ..., (float) value */
1074 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1075 d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1077 emit_store_dst(jd, iptr, d);
1080 case ICMD_F2D: /* ..., value ==> ..., (double) value */
1082 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1083 d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1085 emit_store_dst(jd, iptr, d);
1088 case ICMD_FCMPG: /* ..., val1, val2 ==> ..., val1 fcmpg val2 */
1090 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1091 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1092 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1095 M_SUBGT_IMM(d, d, 1);
1096 M_ADDLT_IMM(d, d, 1);
1097 emit_store_dst(jd, iptr, d);
1100 case ICMD_DCMPG: /* ..., val1, val2 ==> ..., val1 dcmpg val2 */
1102 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1103 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1104 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1107 M_SUBGT_IMM(d, d, 1);
1108 M_ADDLT_IMM(d, d, 1);
1109 emit_store_dst(jd, iptr, d);
1112 case ICMD_FCMPL: /* ..., val1, val2 ==> ..., val1 fcmpl val2 */
1114 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1115 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1116 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1119 M_SUBLT_IMM(d, d, 1);
1120 M_ADDGT_IMM(d, d, 1);
1121 emit_store_dst(jd, iptr, d);
1124 case ICMD_DCMPL: /* ..., val1, val2 ==> ..., val1 dcmpl val2 */
1126 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1127 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1128 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1131 M_SUBLT_IMM(d, d, 1);
1132 M_ADDGT_IMM(d, d, 1);
1133 emit_store_dst(jd, iptr, d);
1136 #endif /* !defined(ENABLE_SOFTFLOAT) */
1139 /* memory operations **************************************************/
1141 case ICMD_ARRAYLENGTH: /* ..., arrayref ==> ..., length */
1143 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1144 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1145 /* implicit null-pointer check */
1146 M_ILD_INTERN(d, s1, OFFSET(java_array_t, size));
1147 emit_store_dst(jd, iptr, d);
1150 case ICMD_BALOAD: /* ..., arrayref, index ==> ..., value */
1152 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1153 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1154 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1155 /* implicit null-pointer check */
1156 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1157 M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1158 M_LDRSB(d, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1159 emit_store_dst(jd, iptr, d);
1162 case ICMD_CALOAD: /* ..., arrayref, index ==> ..., value */
1164 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1165 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1166 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1167 /* implicit null-pointer check */
1168 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1169 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1170 M_LDRH(d, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1171 emit_store_dst(jd, iptr, d);
1174 case ICMD_SALOAD: /* ..., arrayref, index ==> ..., value */
1176 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1177 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1178 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1179 /* implicit null-pointer check */
1180 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1181 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1182 M_LDRSH(d, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1183 emit_store_dst(jd, iptr, d);
1186 case ICMD_IALOAD: /* ..., arrayref, index ==> ..., value */
1188 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1189 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1190 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1191 /* implicit null-pointer check */
1192 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1193 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1194 M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1195 emit_store_dst(jd, iptr, d);
1198 case ICMD_LALOAD: /* ..., arrayref, index ==> ..., value */
1200 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1201 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1202 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1203 /* implicit null-pointer check */
1204 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1205 M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1206 M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1207 emit_store_dst(jd, iptr, d);
1210 case ICMD_FALOAD: /* ..., arrayref, index ==> ..., value */
1212 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1213 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1214 /* implicit null-pointer check */
1215 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1216 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1217 #if !defined(ENABLE_SOFTFLOAT)
1218 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1219 M_FLD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1221 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1222 M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1224 emit_store_dst(jd, iptr, d);
1227 case ICMD_DALOAD: /* ..., arrayref, index ==> ..., value */
1229 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1230 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1231 /* implicit null-pointer check */
1232 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1233 M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1234 #if !defined(ENABLE_SOFTFLOAT)
1235 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1236 M_DLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1238 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1239 M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1241 emit_store_dst(jd, iptr, d);
1244 case ICMD_AALOAD: /* ..., arrayref, index ==> ..., value */
1246 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1247 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1248 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1249 /* implicit null-pointer check */
1250 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1251 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1252 M_LDR_INTERN(d, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1253 emit_store_dst(jd, iptr, d);
1256 case ICMD_BASTORE: /* ..., arrayref, index, value ==> ... */
1258 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1259 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1260 /* implicit null-pointer check */
1261 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1262 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1263 M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1264 M_STRB(s3, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1267 case ICMD_CASTORE: /* ..., arrayref, index, value ==> ... */
1269 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1270 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1271 /* implicit null-pointer check */
1272 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1273 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1274 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1275 M_STRH(s3, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1278 case ICMD_SASTORE: /* ..., arrayref, index, value ==> ... */
1280 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1281 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1282 /* implicit null-pointer check */
1283 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1284 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1285 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1286 M_STRH(s3, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1289 case ICMD_IASTORE: /* ..., arrayref, index, value ==> ... */
1291 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1292 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1293 /* implicit null-pointer check */
1294 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1295 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1296 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1297 M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1300 case ICMD_LASTORE: /* ..., arrayref, index, value ==> ... */
1302 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1303 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1304 /* implicit null-pointer check */
1305 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1306 M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1307 s3 = emit_load_s3(jd, iptr, REG_ITMP12_PACKED);
1308 M_LST_INTERN(s3, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1311 case ICMD_FASTORE: /* ..., arrayref, index, value ==> ... */
1313 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1314 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1315 /* implicit null-pointer check */
1316 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1317 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1318 #if !defined(ENABLE_SOFTFLOAT)
1319 s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1320 M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1322 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1323 M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1327 case ICMD_DASTORE: /* ..., arrayref, index, value ==> ... */
1329 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1330 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1331 /* implicit null-pointer check */
1332 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1333 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 3)); /* REG_ITMP1 = s1 + 8 * s2 */
1334 #if !defined(ENABLE_SOFTFLOAT)
1335 s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1336 M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1338 s3 = emit_load_s3(jd, iptr, REG_ITMP23_PACKED);
1339 M_LST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1343 case ICMD_AASTORE: /* ..., arrayref, index, value ==> ... */
1345 s1 = emit_load_s1(jd, iptr, REG_A0);
1346 s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1347 s3 = emit_load_s3(jd, iptr, REG_A1);
1349 /* implicit null-pointer check */
1350 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1352 /* move arguments to argument registers */
1353 M_INTMOVE(s1, REG_A0);
1354 M_INTMOVE(s3, REG_A1);
1356 /* call builtin function */
1357 disp = dseg_add_functionptr(cd, BUILTIN_FAST_canstore);
1358 M_DSEG_BRANCH(disp);
1361 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
1364 /* check resturn value of builtin */
1365 emit_arraystore_check(cd, iptr);
1367 /* finally store address into array */
1368 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1369 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1370 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1371 M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1372 M_STR_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1375 case ICMD_GETSTATIC: /* ... ==> ..., value */
1377 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1378 uf = iptr->sx.s23.s3.uf;
1379 fieldtype = uf->fieldref->parseddesc.fd->type;
1380 disp = dseg_add_unique_address(cd, NULL);
1382 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1384 if (opt_showdisassemble)
1388 fi = iptr->sx.s23.s3.fmiref->p.field;
1389 fieldtype = fi->type;
1390 disp = dseg_add_address(cd, fi->value);
1392 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1393 patcher_add_patch_ref(jd, PATCHER_initialize_class,
1396 if (opt_showdisassemble)
1401 M_DSEG_LOAD(REG_ITMP3, disp);
1402 switch (fieldtype) {
1404 #if defined(ENABLE_SOFTFLOAT)
1408 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1409 M_ILD_INTERN(d, REG_ITMP3, 0);
1412 #if defined(ENABLE_SOFTFLOAT)
1415 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1416 M_LLD_INTERN(d, REG_ITMP3, 0);
1418 #if !defined(ENABLE_SOFTFLOAT)
1420 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1421 M_FLD_INTERN(d, REG_ITMP3, 0);
1424 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1425 M_DLD_INTERN(d, REG_ITMP3, 0);
1431 emit_store_dst(jd, iptr, d);
1434 case ICMD_PUTSTATIC: /* ..., value ==> ... */
1436 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1437 uf = iptr->sx.s23.s3.uf;
1438 fieldtype = uf->fieldref->parseddesc.fd->type;
1439 disp = dseg_add_unique_address(cd, NULL);
1441 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1443 if (opt_showdisassemble)
1447 fi = iptr->sx.s23.s3.fmiref->p.field;
1448 fieldtype = fi->type;
1449 disp = dseg_add_address(cd, fi->value);
1451 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1452 patcher_add_patch_ref(jd, PATCHER_initialize_class,
1455 if (opt_showdisassemble)
1460 M_DSEG_LOAD(REG_ITMP3, disp);
1461 switch (fieldtype) {
1463 #if defined(ENABLE_SOFTFLOAT)
1467 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1468 M_IST_INTERN(s1, REG_ITMP3, 0);
1471 #if defined(ENABLE_SOFTFLOAT)
1474 s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
1475 M_LST_INTERN(s1, REG_ITMP3, 0);
1477 #if !defined(ENABLE_SOFTFLOAT)
1479 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1480 M_FST_INTERN(s1, REG_ITMP3, 0);
1483 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1484 M_DST_INTERN(s1, REG_ITMP3, 0);
1492 case ICMD_GETFIELD: /* ..., objectref, value ==> ... */
1494 s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1495 emit_nullpointer_check(cd, iptr, s1);
1498 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1499 uf = iptr->sx.s23.s3.uf;
1500 fieldtype = uf->fieldref->parseddesc.fd->type;
1504 fi = iptr->sx.s23.s3.fmiref->p.field;
1505 fieldtype = fi->type;
1509 #if !defined(ENABLE_SOFTFLOAT)
1510 /* HACK: softnull checks on floats */
1511 if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1512 emit_nullpointer_check_force(cd, iptr, s1);
1515 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1517 uf = iptr->sx.s23.s3.uf;
1519 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1521 if (opt_showdisassemble)
1525 switch (fieldtype) {
1527 #if defined(ENABLE_SOFTFLOAT)
1531 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1535 #if defined(ENABLE_SOFTFLOAT)
1538 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1541 #if !defined(ENABLE_SOFTFLOAT)
1543 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1547 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1554 emit_store_dst(jd, iptr, d);
1557 case ICMD_PUTFIELD: /* ..., objectref, value ==> ... */
1559 s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1560 emit_nullpointer_check(cd, iptr, s1);
1562 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1563 uf = iptr->sx.s23.s3.uf;
1564 fieldtype = uf->fieldref->parseddesc.fd->type;
1568 fi = iptr->sx.s23.s3.fmiref->p.field;
1569 fieldtype = fi->type;
1573 #if !defined(ENABLE_SOFTFLOAT)
1574 /* HACK: softnull checks on floats */
1575 if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1576 emit_nullpointer_check_force(cd, iptr, s1);
1579 switch (fieldtype) {
1581 #if defined(ENABLE_SOFTFLOAT)
1585 s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1587 #if defined(ENABLE_SOFTFLOAT)
1588 case TYPE_DBL: /* fall through */
1591 s2 = emit_load_s2(jd, iptr, REG_ITMP12_PACKED);
1593 #if !defined(ENABLE_SOFTFLOAT)
1596 s2 = emit_load_s2(jd, iptr, REG_FTMP1);
1603 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1605 uf = iptr->sx.s23.s3.uf;
1607 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1609 if (opt_showdisassemble)
1613 switch (fieldtype) {
1615 #if defined(ENABLE_SOFTFLOAT)
1619 M_IST(s2, s1, disp);
1622 #if defined(ENABLE_SOFTFLOAT)
1625 M_LST(s2, s1, disp);
1627 #if !defined(ENABLE_SOFTFLOAT)
1629 M_FST(s2, s1, disp);
1632 M_DST(s2, s1, disp);
1641 /* branch operations **************************************************/
1643 case ICMD_ATHROW: /* ..., objectref ==> ... (, objectref) */
1645 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1646 M_INTMOVE(s1, REG_ITMP1_XPTR);
1647 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1648 patcher_add_patch_ref(jd, PATCHER_resolve_class,
1649 iptr->sx.s23.s2.uc, 0);
1651 if (opt_showdisassemble)
1654 disp = dseg_add_functionptr(cd, asm_handle_exception);
1655 M_DSEG_LOAD(REG_ITMP3, disp);
1656 M_MOV(REG_ITMP2_XPC, REG_PC);
1657 M_MOV(REG_PC, REG_ITMP3);
1658 M_NOP; /* nop ensures that XPC is less than the end */
1659 /* of basic block */
1662 case ICMD_GOTO: /* ... ==> ... */
1665 emit_br(cd, iptr->dst.block);
1668 case ICMD_JSR: /* ... ==> ... */
1670 emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1673 case ICMD_IFNULL: /* ..., value ==> ... */
1674 case ICMD_IFNONNULL:
1676 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1678 emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFNULL, BRANCH_OPT_NONE);
1681 case ICMD_IFLT: /* ..., value ==> ... */
1682 case ICMD_IFLE: /* op1 = target JavaVM pc, val.i = constant */
1688 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1689 M_COMPARE(s1, iptr->sx.val.i);
1690 emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1693 case ICMD_IF_LEQ: /* ..., value ==> ... */
1695 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1696 s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1697 if (iptr->sx.val.l == 0) {
1698 M_ORR_S(s1, s2, REG_ITMP3);
1701 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1702 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1703 M_CMP(s1, REG_ITMP3);*/
1704 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1705 M_CMPEQ(s2, REG_ITMP3);
1707 emit_beq(cd, iptr->dst.block);
1710 case ICMD_IF_LLT: /* ..., value ==> ... */
1712 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1713 s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1714 if (iptr->sx.val.l == 0) {
1715 /* if high word is less than zero, the whole long is too */
1717 emit_blt(cd, iptr->dst.block);
1720 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1721 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1722 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1723 M_CMP(s1, REG_ITMP3);*/
1724 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1725 M_MOVGT_IMM(2, REG_ITMP1);
1726 M_MOVEQ_IMM(1, REG_ITMP1);
1728 /* low compare: x=x-1(ifLO) */
1729 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1730 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1731 M_CMP(s2, REG_ITMP3);*/
1732 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1734 /* branch if (x LT 1) */
1735 M_CMP_IMM(REG_ITMP1, 1);
1736 emit_blt(cd, iptr->dst.block);
1740 case ICMD_IF_LLE: /* ..., value ==> ... */
1742 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1743 s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1744 if (iptr->sx.val.l == 0) {
1745 /* if high word is less than zero, the whole long is too */
1747 emit_blt(cd, iptr->dst.block);
1749 /* ... otherwise the low word has to be zero (tricky!) */
1751 emit_beq(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(ifHI) */
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_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1768 /* branch if (x LE 1) */
1769 M_CMP_IMM(REG_ITMP1, 1);
1770 emit_ble(cd, iptr->dst.block);
1774 case ICMD_IF_LGE: /* ..., 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 greater or equal zero, the whole long is too */
1781 emit_bge(cd, iptr->dst.block);
1784 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1785 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1786 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1787 M_CMP(s1, REG_ITMP3);*/
1788 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1789 M_MOVGT_IMM(2, REG_ITMP1);
1790 M_MOVEQ_IMM(1, REG_ITMP1);
1792 /* low compare: x=x-1(ifLO) */
1793 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1794 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1795 M_CMP(s2, REG_ITMP3);*/
1796 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1798 /* branch if (x GE 1) */
1799 M_CMP_IMM(REG_ITMP1, 1);
1800 emit_bge(cd, iptr->dst.block);
1804 case ICMD_IF_LGT: /* ..., value ==> ... */
1806 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1807 s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1809 if (iptr->sx.val.l == 0) {
1810 /* if high word is greater than zero, the whole long is too */
1813 codegen_add_branch_ref(cd, iptr->dst.block);
1815 /* ... or high was zero and low is non zero (tricky!) */
1816 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1817 M_MOVLT_IMM(1, REG_ITMP3);
1818 M_ORR_S(REG_ITMP3, s2, REG_ITMP3);
1820 codegen_add_branch_ref(cd, iptr->dst.block);
1824 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1825 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1826 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1827 M_CMP(s1, REG_ITMP3);*/
1828 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1829 M_MOVGT_IMM(2, REG_ITMP1);
1830 M_MOVEQ_IMM(1, REG_ITMP1);
1832 /* low compare: x=x+1(ifHI) */
1833 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1834 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1835 M_CMP(s2, REG_ITMP3);*/
1836 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1838 /* branch if (x GT 1) */
1839 M_CMP_IMM(REG_ITMP1, 1);
1840 emit_bgt(cd, iptr->dst.block);
1846 case ICMD_IF_LNE: /* ..., value ==> ... */
1848 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1849 s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1850 if (iptr->sx.val.l == 0) {
1851 M_ORR_S(s1, s2, REG_ITMP3);
1854 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1855 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1856 M_CMP(s1, REG_ITMP3);*/
1857 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1858 M_CMPEQ(s2, REG_ITMP3);
1860 emit_bne(cd, iptr->dst.block);
1863 case ICMD_IF_ICMPEQ: /* ..., value, value ==> ... */
1864 case ICMD_IF_ICMPNE:
1865 case ICMD_IF_ICMPLT:
1866 case ICMD_IF_ICMPLE:
1867 case ICMD_IF_ICMPGT:
1868 case ICMD_IF_ICMPGE:
1870 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1871 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1873 emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ICMPEQ, BRANCH_OPT_NONE);
1876 case ICMD_IF_ACMPEQ: /* ..., value, value ==> ... */
1877 case ICMD_IF_ACMPNE:
1879 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1880 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1882 emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ACMPEQ, BRANCH_OPT_NONE);
1885 case ICMD_IF_LCMPEQ: /* ..., value, value ==> ... */
1886 /* op1 = target JavaVM pc */
1888 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1889 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1892 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1893 s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1896 emit_beq(cd, iptr->dst.block);
1899 case ICMD_IF_LCMPNE: /* ..., value, value ==> ... */
1900 /* op1 = target JavaVM pc */
1902 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1903 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1906 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1907 s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1910 emit_bne(cd, iptr->dst.block);
1913 case ICMD_IF_LCMPLT: /* ..., value, value ==> ... */
1914 /* op1 = target JavaVM pc */
1916 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1917 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1918 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1920 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1921 M_MOVGT_IMM(2, REG_ITMP3);
1922 M_MOVEQ_IMM(1, REG_ITMP3);
1924 /* low compare: x=x-1(ifLO) */
1925 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1926 s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1928 M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1930 /* branch if (x LT 1) */
1931 M_CMP_IMM(REG_ITMP3, 1);
1932 emit_blt(cd, iptr->dst.block);
1935 case ICMD_IF_LCMPLE: /* ..., value, value ==> ... */
1936 /* op1 = target JavaVM pc */
1938 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1939 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1940 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1942 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1943 M_MOVGT_IMM(2, REG_ITMP3);
1944 M_MOVEQ_IMM(1, REG_ITMP3);
1946 /* low compare: x=x-1(ifLO) */
1947 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1948 s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1950 M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1952 /* branch if (x LE 1) */
1953 M_CMP_IMM(REG_ITMP3, 1);
1954 emit_ble(cd, iptr->dst.block);
1957 case ICMD_IF_LCMPGT: /* ..., value, value ==> ... */
1958 /* op1 = target JavaVM pc */
1960 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1961 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1962 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1964 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1965 M_MOVGT_IMM(2, REG_ITMP3);
1966 M_MOVEQ_IMM(1, REG_ITMP3);
1968 /* low compare: x=x-1(ifLO) */
1969 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1970 s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1972 M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1974 /* branch if (x GT 1) */
1975 M_CMP_IMM(REG_ITMP3, 1);
1976 emit_bgt(cd, iptr->dst.block);
1979 case ICMD_IF_LCMPGE: /* ..., value, value ==> ... */
1980 /* op1 = target JavaVM pc */
1982 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1983 s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1984 s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1986 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1987 M_MOVGT_IMM(2, REG_ITMP3);
1988 M_MOVEQ_IMM(1, REG_ITMP3);
1990 /* low compare: x=x-1(ifLO) */
1991 s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1992 s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1994 M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1996 /* branch if (x GE 1) */
1997 M_CMP_IMM(REG_ITMP3, 1);
1998 emit_bge(cd, iptr->dst.block);
2001 case ICMD_TABLESWITCH: /* ..., index ==> ... */
2004 branch_target_t *table;
2006 table = iptr->dst.table;
2008 l = iptr->sx.s23.s2.tablelow;
2009 i = iptr->sx.s23.s3.tablehigh;
2011 /* calculate new index (index - low) */
2012 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2014 M_INTMOVE(s1, REG_ITMP1);
2015 } else if (IS_IMM(l)) {
2016 M_SUB_IMM(REG_ITMP1, s1, l);
2018 ICONST(REG_ITMP2, l);
2019 M_SUB(REG_ITMP1, s1, REG_ITMP2);
2022 /* range check (index <= high-low) */
2024 M_COMPARE(REG_ITMP1, i-1);
2025 emit_bugt(cd, table[0].block);
2027 /* build jump table top down and use address of lowest entry */
2032 dseg_add_target(cd, table->block);
2037 /* length of dataseg after last dseg_add_target is used by load */
2038 /* TODO: this loads from data-segment */
2039 M_ADD(REG_ITMP2, REG_PV, REG_LSL(REG_ITMP1, 2));
2040 M_LDR(REG_PC, REG_ITMP2, -(cd->dseglen));
2043 case ICMD_LOOKUPSWITCH: /* ..., key ==> ... */
2046 lookup_target_t *lookup;
2048 lookup = iptr->dst.lookup;
2050 i = iptr->sx.s23.s2.lookupcount;
2053 MCODECHECK((i<<2)+8);
2054 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2057 M_COMPARE(s1, lookup->value);
2058 emit_beq(cd, lookup->target.block);
2062 /* default branch */
2063 emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2067 case ICMD_FRETURN: /* ..., retvalue ==> ... */
2069 #if !defined(ENABLE_SOFTFLOAT)
2070 REPLACEMENT_POINT_RETURN(cd, iptr);
2071 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2072 M_CAST_FLT_TO_INT_TYPED(VAROP(iptr->s1)->type, s1, REG_RESULT);
2073 goto ICMD_RETURN_do;
2076 case ICMD_IRETURN: /* ..., retvalue ==> ... */
2078 REPLACEMENT_POINT_RETURN(cd, iptr);
2079 s1 = emit_load_s1(jd, iptr, REG_RESULT);
2080 M_INTMOVE(s1, REG_RESULT);
2081 goto ICMD_RETURN_do;
2083 case ICMD_DRETURN: /* ..., retvalue ==> ... */
2085 #if !defined(ENABLE_SOFTFLOAT)
2086 REPLACEMENT_POINT_RETURN(cd, iptr);
2087 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2088 M_CAST_FLT_TO_INT_TYPED(VAROP(iptr->s1)->type, s1, REG_RESULT_PACKED);
2089 goto ICMD_RETURN_do;
2092 case ICMD_LRETURN: /* ..., retvalue ==> ... */
2094 REPLACEMENT_POINT_RETURN(cd, iptr);
2095 s1 = emit_load_s1(jd, iptr, REG_RESULT_PACKED);
2096 M_LNGMOVE(s1, REG_RESULT_PACKED);
2097 goto ICMD_RETURN_do;
2099 case ICMD_ARETURN: /* ..., retvalue ==> ... */
2101 REPLACEMENT_POINT_RETURN(cd, iptr);
2102 s1 = emit_load_s1(jd, iptr, REG_RESULT);
2103 M_INTMOVE(s1, REG_RESULT);
2104 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2105 patcher_add_patch_ref(jd, PATCHER_resolve_class,
2106 iptr->sx.s23.s2.uc, 0);
2108 if (opt_showdisassemble)
2111 goto ICMD_RETURN_do;
2113 case ICMD_RETURN: /* ... ==> ... */
2115 REPLACEMENT_POINT_RETURN(cd, iptr);
2118 #if !defined(NDEBUG)
2119 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2120 emit_verbosecall_exit(jd);
2123 #if defined(ENABLE_THREADS)
2124 /* call monitorexit function */
2126 if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
2127 /* stack offset for monitor argument */
2129 s1 = rd->memuse * 8;
2131 /* we need to save the proper return value */
2133 switch (iptr->opc) {
2137 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2139 M_STMFD(BITMASK_RESULT, REG_SP);
2144 M_LDR(REG_A0, REG_SP, s1);
2145 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
2146 M_DSEG_BRANCH(disp);
2148 /* we no longer need PV here, no more loading */
2149 /*s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2150 M_RECOMPUTE_PV(s1);*/
2152 switch (iptr->opc) {
2156 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2158 M_LDMFD(BITMASK_RESULT, REG_SP);
2164 /* deallocate stackframe for spilled variables */
2166 if ((cd->stackframesize / 4 - savedregs_num) > 0)
2167 M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
2169 /* restore callee saved registers + do return */
2171 if (savedregs_bitmask) {
2172 if (!jd->isleafmethod) {
2173 savedregs_bitmask &= ~(1<<REG_LR);
2174 savedregs_bitmask |= (1<<REG_PC);
2176 M_LDMFD(savedregs_bitmask, REG_SP);
2179 /* if LR was not on stack, we need to return manually */
2181 if (jd->isleafmethod)
2182 M_MOV(REG_PC, REG_LR);
2185 case ICMD_BUILTIN: /* ..., arg1, arg2, arg3 ==> ... */
2187 bte = iptr->sx.s23.s3.bte;
2189 goto ICMD_INVOKE_do;
2191 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ... */
2192 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2193 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer */
2194 case ICMD_INVOKEINTERFACE:
2196 REPLACEMENT_POINT_INVOKE(cd, iptr);
2198 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2200 um = iptr->sx.s23.s3.um;
2201 md = um->methodref->parseddesc.md;
2204 lm = iptr->sx.s23.s3.fmiref->p.method;
2206 md = lm->parseddesc;
2210 /* copy arguments to registers or stack location */
2212 s3 = md->paramcount;
2214 MCODECHECK((s3 << 1) + 64);
2216 for (s3 = s3 - 1; s3 >= 0; s3--) {
2217 var = VAR(iptr->sx.s23.s2.args[s3]);
2218 d = md->params[s3].regoff;
2220 if (var->flags & PREALLOC) /* argument was precolored? */
2223 /* TODO: document me */
2224 #if !defined(ENABLE_SOFTFLOAT)
2225 if (IS_INT_LNG_TYPE(var->type)) {
2226 #endif /* !defined(ENABLE_SOFTFLOAT) */
2227 if (!md->params[s3].inmemory) {
2228 s1 = emit_load(jd, iptr, var, d);
2230 if (IS_2_WORD_TYPE(var->type))
2236 if (IS_2_WORD_TYPE(var->type)) {
2237 s1 = emit_load(jd, iptr, var, REG_ITMP12_PACKED);
2238 M_LST(s1, REG_SP, d);
2241 s1 = emit_load(jd, iptr, var, REG_ITMP1);
2242 M_IST(s1, REG_SP, d);
2245 #if !defined(ENABLE_SOFTFLOAT)
2248 if (!md->params[s3].inmemory) {
2249 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2250 M_CAST_FLT_TO_INT_TYPED(var->type, s1, d);
2253 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2254 if (IS_2_WORD_TYPE(var->type))
2255 M_DST(s1, REG_SP, d);
2257 M_FST(s1, REG_SP, d);
2260 #endif /* !defined(ENABLE_SOFTFLOAT) */
2263 switch (iptr->opc) {
2266 if (bte->stub == NULL) {
2267 disp = dseg_add_functionptr(cd, bte->fp);
2269 disp = dseg_add_functionptr(cd, bte->stub);
2272 M_DSEG_LOAD(REG_PV, disp); /* pointer to built-in-function */
2274 /* generate the actual call */
2276 M_MOV(REG_LR, REG_PC);
2277 M_MOV(REG_PC, REG_PV);
2278 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2281 emit_exception_check(cd, iptr);
2284 case ICMD_INVOKESPECIAL:
2285 emit_nullpointer_check(cd, iptr, REG_A0);
2288 case ICMD_INVOKESTATIC:
2290 disp = dseg_add_unique_address(cd, NULL);
2292 patcher_add_patch_ref(jd, PATCHER_invokestatic_special,
2295 if (opt_showdisassemble)
2299 disp = dseg_add_address(cd, lm->stubroutine);
2301 M_DSEG_LOAD(REG_PV, disp); /* Pointer to method */
2303 /* generate the actual call */
2305 M_MOV(REG_LR, REG_PC);
2306 M_MOV(REG_PC, REG_PV);
2307 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2311 case ICMD_INVOKEVIRTUAL:
2313 patcher_add_patch_ref(jd, PATCHER_invokevirtual, um, 0);
2315 if (opt_showdisassemble)
2321 s1 = OFFSET(vftbl_t, table[0]) +
2322 sizeof(methodptr) * lm->vftblindex;
2324 /* implicit null-pointer check */
2325 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2326 OFFSET(java_object_t, vftbl));
2327 M_LDR_INTERN(REG_PV, REG_METHODPTR, s1);
2329 /* generate the actual call */
2331 M_MOV(REG_LR, REG_PC);
2332 M_MOV(REG_PC, REG_PV);
2333 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2337 case ICMD_INVOKEINTERFACE:
2339 patcher_add_patch_ref(jd, PATCHER_invokeinterface, um, 0);
2341 if (opt_showdisassemble)
2348 s1 = OFFSET(vftbl_t, interfacetable[0]) -
2349 sizeof(methodptr*) * lm->class->index;
2350 s2 = sizeof(methodptr) * (lm - lm->class->methods);
2353 /* implicit null-pointer check */
2354 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2355 OFFSET(java_object_t, vftbl));
2356 M_LDR_INTERN(REG_METHODPTR, REG_METHODPTR, s1);
2357 M_LDR_INTERN(REG_PV, REG_METHODPTR, s2);
2359 /* generate the actual call */
2361 M_MOV(REG_LR, REG_PC);
2362 M_MOV(REG_PC, REG_PV);
2363 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2368 /* store size of call code in replacement point */
2369 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2371 /* store return value */
2373 d = md->returntype.type;
2375 #if !defined(__SOFTFP__)
2376 /* TODO: this is only a hack, since we use R0/R1 for float
2377 return! this depends on gcc; it is independent from
2378 our ENABLE_SOFTFLOAT define */
2379 if (iptr->opc == ICMD_BUILTIN && d != TYPE_VOID && IS_FLT_DBL_TYPE(d)) {
2380 #if 0 && !defined(NDEBUG)
2381 dolog("BUILTIN that returns float or double (%s.%s)", m->class->name->text, m->name->text);
2383 /* we cannot use this macro, since it is not defined
2384 in ENABLE_SOFTFLOAT M_CAST_FLT_TO_INT_TYPED(d,
2385 REG_FRESULT, REG_RESULT_TYPED(d)); */
2386 if (IS_2_WORD_TYPE(d)) {
2387 DCD(0xed2d8102); /* stfd f0, [sp, #-8]! */
2388 M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
2390 DCD(0xed2d0101); /* stfs f0, [sp, #-4]!*/
2391 M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
2396 if (d != TYPE_VOID) {
2397 #if !defined(ENABLE_SOFTFLOAT)
2398 if (IS_INT_LNG_TYPE(d)) {
2399 #endif /* !defined(ENABLE_SOFTFLOAT) */
2400 if (IS_2_WORD_TYPE(d)) {
2401 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
2402 M_LNGMOVE(REG_RESULT_PACKED, s1);
2405 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2406 M_INTMOVE(REG_RESULT, s1);
2409 #if !defined(ENABLE_SOFTFLOAT)
2411 s1 = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
2412 M_CAST_INT_TO_FLT_TYPED(VAROP(iptr->dst)->type, REG_RESULT_TYPED(VAROP(iptr->dst)->type), s1);
2414 #endif /* !defined(ENABLE_SOFTFLOAT) */
2416 emit_store_dst(jd, iptr, s1);
2420 case ICMD_CHECKCAST: /* ..., objectref ==> ..., objectref */
2422 if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2423 /* object type cast-check */
2428 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2433 super = iptr->sx.s23.s3.c.cls;
2434 superindex = super->index;
2437 if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2438 CODEGEN_CRITICAL_SECTION_NEW;
2440 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2442 /* if class is not resolved, check which code to call */
2444 if (super == NULL) {
2446 emit_label_beq(cd, BRANCH_LABEL_1);
2448 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2449 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2450 iptr->sx.s23.s3.c.ref, disp);
2452 if (opt_showdisassemble)
2455 M_DSEG_LOAD(REG_ITMP2, disp);
2456 disp = dseg_add_s4(cd, ACC_INTERFACE);
2457 M_DSEG_LOAD(REG_ITMP3, disp);
2458 M_TST(REG_ITMP2, REG_ITMP3);
2459 emit_label_beq(cd, BRANCH_LABEL_2);
2462 /* interface checkcast code */
2464 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2465 if ((super == NULL) || !IS_IMM(superindex)) {
2466 disp = dseg_add_unique_s4(cd, superindex);
2468 if (super == NULL) {
2469 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2470 iptr->sx.s23.s3.c.ref, disp);
2472 if (opt_showdisassemble)
2477 emit_label_beq(cd, BRANCH_LABEL_3);
2480 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2481 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2483 /* we put unresolved or non-immediate superindices onto dseg */
2484 if ((super == NULL) || !IS_IMM(superindex)) {
2485 /* disp was computed before we added the patcher */
2486 M_DSEG_LOAD(REG_ITMP2, disp);
2487 M_CMP(REG_ITMP3, REG_ITMP2);
2489 assert(IS_IMM(superindex));
2490 M_CMP_IMM(REG_ITMP3, superindex);
2493 emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2495 /* if we loaded the superindex out of the dseg above, we do
2496 things differently here! */
2497 if ((super == NULL) || !IS_IMM(superindex)) {
2499 M_LDR_INTERN(REG_ITMP3, s1, OFFSET(java_object_t, vftbl));
2501 /* this assumes something */
2502 assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2504 /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2505 assert(sizeof(methodptr*) == 4);
2506 M_SUB(REG_ITMP2, REG_ITMP3, REG_LSL(REG_ITMP2, 2));
2512 s2 = OFFSET(vftbl_t, interfacetable[0]) -
2513 superindex * sizeof(methodptr*);
2517 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, s2);
2518 M_TST(REG_ITMP3, REG_ITMP3);
2519 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2522 emit_label_br(cd, BRANCH_LABEL_4);
2524 emit_label(cd, BRANCH_LABEL_3);
2527 /* class checkcast code */
2529 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2530 if (super == NULL) {
2531 emit_label(cd, BRANCH_LABEL_2);
2533 disp = dseg_add_unique_address(cd, NULL);
2535 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2536 iptr->sx.s23.s3.c.ref,
2539 if (opt_showdisassemble)
2543 disp = dseg_add_address(cd, super->vftbl);
2546 emit_label_beq(cd, BRANCH_LABEL_5);
2549 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2550 M_DSEG_LOAD(REG_ITMP3, disp);
2552 CODEGEN_CRITICAL_SECTION_START;
2554 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2555 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, baseval));
2556 M_SUB(REG_ITMP2, REG_ITMP2, REG_ITMP3);
2557 M_DSEG_LOAD(REG_ITMP3, disp);
2558 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
2560 CODEGEN_CRITICAL_SECTION_END;
2562 M_CMP(REG_ITMP2, REG_ITMP3);
2563 emit_classcast_check(cd, iptr, BRANCH_UGT, 0, s1);
2566 emit_label(cd, BRANCH_LABEL_5);
2569 if (super == NULL) {
2570 emit_label(cd, BRANCH_LABEL_1);
2571 emit_label(cd, BRANCH_LABEL_4);
2574 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
2577 /* array type cast-check */
2579 s1 = emit_load_s1(jd, iptr, REG_A0);
2580 M_INTMOVE(s1, REG_A0);
2582 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2583 disp = dseg_add_unique_address(cd, NULL);
2585 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2586 iptr->sx.s23.s3.c.ref,
2589 if (opt_showdisassemble)
2593 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2595 M_DSEG_LOAD(REG_A1, disp);
2596 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2597 M_DSEG_BRANCH(disp);
2600 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2601 M_RECOMPUTE_PV(disp);
2603 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2604 M_TST(REG_RESULT, REG_RESULT);
2605 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2607 d = codegen_reg_of_dst(jd, iptr, s1);
2611 emit_store_dst(jd, iptr, d);
2614 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult */
2620 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2625 super = iptr->sx.s23.s3.c.cls;
2626 superindex = super->index;
2629 if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2630 CODEGEN_CRITICAL_SECTION_NEW;
2632 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2633 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2636 M_MOV(REG_ITMP1, s1);
2640 /* if class is not resolved, check which code to call */
2642 if (super == NULL) {
2646 emit_label_beq(cd, BRANCH_LABEL_1);
2648 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2649 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2650 iptr->sx.s23.s3.c.ref, disp);
2652 if (opt_showdisassemble)
2655 M_DSEG_LOAD(REG_ITMP2, disp);
2656 disp = dseg_add_s4(cd, ACC_INTERFACE);
2657 M_DSEG_LOAD(REG_ITMP3, disp);
2658 M_TST(REG_ITMP2, REG_ITMP3);
2659 emit_label_beq(cd, BRANCH_LABEL_2);
2662 /* interface checkcast code */
2664 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2665 if ((super == NULL) || !IS_IMM(superindex)) {
2666 disp = dseg_add_unique_s4(cd, superindex);
2668 if (super == NULL) {
2669 /* If d == REG_ITMP2, then it's destroyed in check
2674 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2675 iptr->sx.s23.s3.c.ref, disp);
2677 if (opt_showdisassemble)
2683 emit_label_beq(cd, BRANCH_LABEL_3);
2686 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2687 M_LDR_INTERN(REG_ITMP3,
2688 REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2690 /* we put unresolved or non-immediate superindices onto dseg
2691 and do things slightly different */
2692 if ((super == NULL) || !IS_IMM(superindex)) {
2693 /* disp was computed before we added the patcher */
2694 M_DSEG_LOAD(REG_ITMP2, disp);
2695 M_CMP(REG_ITMP3, REG_ITMP2);
2697 if (d == REG_ITMP2) {
2704 /* this assumes something */
2705 assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2707 /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2708 assert(sizeof(methodptr*) == 4);
2709 M_SUB(REG_ITMP1, REG_ITMP1, REG_LSL(REG_ITMP2, 2));
2711 if (d == REG_ITMP2) {
2718 assert(IS_IMM(superindex));
2719 M_CMP_IMM(REG_ITMP3, superindex);
2723 s2 = OFFSET(vftbl_t, interfacetable[0]) -
2724 superindex * sizeof(methodptr*);
2728 M_LDR_INTERN(REG_ITMP3, REG_ITMP1, s2);
2729 M_TST(REG_ITMP3, REG_ITMP3);
2733 emit_label_br(cd, BRANCH_LABEL_4);
2735 emit_label(cd, BRANCH_LABEL_3);
2738 /* class checkcast code */
2740 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2741 if (super == NULL) {
2742 emit_label(cd, BRANCH_LABEL_2);
2744 disp = dseg_add_unique_address(cd, NULL);
2746 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2747 iptr->sx.s23.s3.c.ref, disp);
2749 if (opt_showdisassemble)
2753 disp = dseg_add_address(cd, super->vftbl);
2757 emit_label_beq(cd, BRANCH_LABEL_5);
2760 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2761 M_DSEG_LOAD(REG_ITMP2, disp);
2763 CODEGEN_CRITICAL_SECTION_START;
2765 M_LDR_INTERN(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2766 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2767 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2769 CODEGEN_CRITICAL_SECTION_END;
2771 M_SUB(REG_ITMP1, REG_ITMP1, REG_ITMP3);
2772 M_CMP(REG_ITMP1, REG_ITMP2);
2773 /* If d == REG_ITMP2, then it's destroyed */
2779 emit_label(cd, BRANCH_LABEL_5);
2782 if (super == NULL) {
2783 emit_label(cd, BRANCH_LABEL_1);
2784 emit_label(cd, BRANCH_LABEL_4);
2789 emit_store_dst(jd, iptr, d);
2792 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref */
2794 /* copy sizes to stack if necessary */
2796 MCODECHECK((iptr->s1.argcount << 1) + 64);
2798 for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2800 var = VAR(iptr->sx.s23.s2.args[s1]);
2802 /* copy SAVEDVAR sizes to stack */
2804 if (!(var->flags & PREALLOC)) {
2805 s2 = emit_load(jd, iptr, var, REG_ITMP1);
2806 M_STR(s2, REG_SP, s1 * 4);
2810 /* a0 = dimension count */
2812 assert(IS_IMM(iptr->s1.argcount));
2813 M_MOV_IMM(REG_A0, iptr->s1.argcount);
2815 /* is patcher function set? */
2817 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2818 disp = dseg_add_unique_address(cd, NULL);
2820 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2821 iptr->sx.s23.s3.c.ref, disp);
2823 if (opt_showdisassemble)
2827 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2829 /* a1 = arraydescriptor */
2831 M_DSEG_LOAD(REG_A1, disp);
2833 /* a2 = pointer to dimensions = stack pointer */
2835 M_INTMOVE(REG_SP, REG_A2);
2837 /* call builtin_multianewarray here */
2839 disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2840 M_DSEG_BRANCH(disp);
2844 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2847 /* check for exception before result assignment */
2849 emit_exception_check(cd, iptr);
2853 d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2854 M_INTMOVE(REG_RESULT, d);
2855 emit_store_dst(jd, iptr, d);
2858 case ICMD_CHECKNULL: /* ..., objectref ==> ..., objectref */
2860 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2861 emit_nullpointer_check(cd, iptr, s1);
2865 exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2868 } /* the big switch */
2870 } /* for all instructions */
2872 } /* for all basic blocks */
2874 dseg_createlinenumbertable(cd);
2877 /* generate traps */
2879 emit_patcher_traps(jd);
2881 /* everything's ok */
2887 /* codegen_emit_stub_compiler **************************************************
2889 Emits a stub routine which calls the compiler.
2891 *******************************************************************************/
2893 void codegen_emit_stub_compiler(jitdata *jd)
2898 /* get required compiler data */
2903 /* code for the stub */
2905 M_LDR_INTERN(REG_ITMP1, REG_PC, -(2 * 4 + 2 * SIZEOF_VOID_P));
2906 M_LDR_INTERN(REG_PC, REG_PC, -(3 * 4 + 3 * SIZEOF_VOID_P));
2910 /* codegen_emit_stub_builtin ***************************************************
2912 Emits a stub routine which calls a builtin function.
2914 *******************************************************************************/
2916 void codegen_emit_stub_builtin(jitdata *jd, builtintable_entry *bte)
2925 /* get required compiler data */
2930 /* set some variables */
2934 /* calculate stack frame size */
2936 cd->stackframesize =
2937 SIZEOF_VOID_P + /* return address */
2938 sizeof(stackframeinfo); /* stackframeinfo */
2940 /* align stack to 8-byte */
2942 cd->stackframesize = (cd->stackframesize + 4) & ~4;
2944 /* create method header */
2946 (void) dseg_add_unique_address(cd, code); /* CodeinfoPointer */
2947 (void) dseg_add_unique_s4(cd, cd->stackframesize); /* FrameSize */
2948 (void) dseg_add_unique_s4(cd, 0); /* IsSync */
2949 (void) dseg_add_unique_s4(cd, 0); /* IsLeaf */
2950 (void) dseg_add_unique_s4(cd, 0); /* IntSave */
2951 (void) dseg_add_unique_s4(cd, 0); /* FltSave */
2952 (void) dseg_addlinenumbertablesize(cd);
2953 (void) dseg_add_unique_s4(cd, 0); /* ExTableSize */
2955 /* generate stub code */
2957 M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
2958 M_STMFD(1<<REG_LR, REG_SP);
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(stackframeinfo) +
2965 OFFSET(stackframeinfo, 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);
2976 /* create builtin stackframe info */
2978 assert(IS_IMM(4*4 + cd->stackframesize));
2979 M_ADD_IMM(REG_A0, REG_SP, 4*4 + cd->stackframesize);
2980 M_MOV(REG_A1, REG_PV);
2981 M_ADD_IMM(REG_A2, REG_SP, 4*4 + cd->stackframesize);
2982 M_LDR_INTERN(REG_A3, REG_SP, 4*4);
2983 disp = dseg_add_functionptr(cd, codegen_stub_builtin_enter);
2984 M_DSEG_BRANCH(disp);
2986 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2989 /* Restore integer and float argument registers (these are 4
2990 registers, stack is 8-byte aligned). */
2992 M_LDMFD(BITMASK_ARGS, REG_SP);
2994 /* builtins are allowed to have 4 arguments max */
2996 assert(md->paramcount <= 4);
2997 for (i = 0; i < md->paramcount; i++) {
2998 assert(!IS_2_WORD_TYPE(md->paramtypes[i].type));
3001 /* call the builtin function */
3003 disp = dseg_add_functionptr(cd, bte->fp);
3004 M_DSEG_BRANCH(disp);
3008 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3011 /* save return value */
3013 assert(!IS_FLT_DBL_TYPE(md->returntype.type));
3014 M_STMFD(BITMASK_RESULT, REG_SP);
3016 /* remove builtin stackframe info */
3018 M_ADD_IMM(REG_A0, REG_SP, 2*4 + cd->stackframesize);
3019 disp = dseg_add_functionptr(cd, codegen_stub_builtin_exit);
3020 M_DSEG_BRANCH(disp);
3021 /*s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3022 M_RECOMPUTE_PV(s1);*/
3024 /* restore return value */
3026 M_LDMFD(BITMASK_RESULT, REG_SP);
3028 #if defined(ENABLE_GC_CACAO)
3029 /* Restore callee saved integer registers from stackframeinfo (GC
3030 might have modified them during a collection). */
3032 disp = cd->stackframesize - sizeof(stackframeinfo) +
3033 OFFSET(stackframeinfo, intregs);
3035 for (i = 0; i < INT_SAV_CNT; i++)
3036 M_LDR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
3039 /* remove stackframe and return */
3041 M_LDMFD(1<<REG_LR, REG_SP);
3042 M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
3043 M_MOV(REG_PC, REG_LR);
3047 /* codegen_emit_stub_native ****************************************************
3049 Emits a stub routine which calls a native method.
3051 *******************************************************************************/
3053 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
3062 s4 disp, funcdisp, s1, s2;
3064 /* get required compiler data */
3070 /* initialize variables */
3073 nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
3075 /* calculate stackframe size */
3077 cd->stackframesize =
3078 4 + /* return address */
3079 sizeof(stackframeinfo) + /* stackframeinfo */
3080 sizeof(localref_table) + /* localref_table */
3081 nmd->memuse * 4; /* stack arguments */
3083 /* align stack to 8-byte */
3085 cd->stackframesize = (cd->stackframesize + 4) & ~4;
3087 /* create method header */
3089 (void) dseg_add_unique_address(cd, code); /* CodeinfoPointer */
3090 (void) dseg_add_unique_s4(cd, cd->stackframesize); /* FrameSize */
3091 (void) dseg_add_unique_s4(cd, 0); /* IsSync */
3092 (void) dseg_add_unique_s4(cd, 0); /* IsLeaf */
3093 (void) dseg_add_unique_s4(cd, 0); /* IntSave */
3094 (void) dseg_add_unique_s4(cd, 0); /* FltSave */
3095 (void) dseg_addlinenumbertablesize(cd);
3096 (void) dseg_add_unique_s4(cd, 0); /* ExTableSize */
3098 /* generate stub code */
3100 M_STMFD(1<<REG_LR, REG_SP);
3101 M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
3103 #if !defined(NDEBUG)
3104 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3105 emit_verbosecall_enter(jd);
3108 /* get function address (this must happen before the stackframeinfo) */
3110 funcdisp = dseg_add_functionptr(cd, f);
3112 #if !defined(WITH_STATIC_CLASSPATH)
3114 patcher_add_patch_ref(jd, PATCHER_resolve_native_function, m, funcdisp);
3116 if (opt_showdisassemble)
3121 #if defined(ENABLE_GC_CACAO)
3122 /* Save callee saved integer registers in stackframeinfo (GC may
3123 need to recover them during a collection). */
3125 disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo) +
3126 OFFSET(stackframeinfo, intregs);
3128 for (i = 0; i < INT_SAV_CNT; i++)
3129 M_STR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
3132 /* Save integer and float argument registers (these are 4
3133 registers, stack is 8-byte aligned). */
3135 M_STMFD(BITMASK_ARGS, REG_SP);
3136 /* TODO: floating point */
3138 /* create native stackframe info */
3140 assert(IS_IMM(4*4 + cd->stackframesize));
3141 M_ADD_IMM(REG_A0, REG_SP, 4*4 + cd->stackframesize - SIZEOF_VOID_P);
3142 M_MOV(REG_A1, REG_PV);
3143 M_ADD_IMM(REG_A2, REG_SP, 4*4 + cd->stackframesize);
3144 M_LDR_INTERN(REG_A3, REG_SP, 4*4 + cd->stackframesize - SIZEOF_VOID_P);
3145 disp = dseg_add_functionptr(cd, codegen_start_native_call);
3146 M_DSEG_BRANCH(disp);
3150 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3153 /* Restore integer and float argument registers (these are 4
3154 registers, stack is 8-byte aligned). */
3156 M_LDMFD(BITMASK_ARGS, REG_SP);
3157 /* TODO: floating point */
3159 /* copy or spill arguments to new locations */
3160 /* ATTENTION: the ARM has only integer argument registers! */
3162 for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
3163 t = md->paramtypes[i].type;
3165 if (!md->params[i].inmemory) {
3166 s1 = md->params[i].regoff;
3167 s2 = nmd->params[j].regoff;
3169 if (!nmd->params[j].inmemory) {
3170 #if !defined(__ARM_EABI__)
3171 SPLIT_OPEN(t, s2, REG_ITMP1);
3174 if (IS_2_WORD_TYPE(t))
3179 #if !defined(__ARM_EABI__)
3180 SPLIT_STORE_AND_CLOSE(t, s2, 0);
3184 if (IS_2_WORD_TYPE(t))
3185 M_LST(s1, REG_SP, s2);
3187 M_IST(s1, REG_SP, s2);
3191 s1 = md->params[i].regoff + cd->stackframesize;
3192 s2 = nmd->params[j].regoff;
3194 if (IS_2_WORD_TYPE(t)) {
3195 M_LLD(REG_ITMP12_PACKED, REG_SP, s1);
3196 M_LST(REG_ITMP12_PACKED, REG_SP, s2);
3199 M_ILD(REG_ITMP1, REG_SP, s1);
3200 M_IST(REG_ITMP1, REG_SP, s2);
3205 /* put class into second argument register */
3207 if (m->flags & ACC_STATIC) {
3208 disp = dseg_add_address(cd, m->class);
3209 M_DSEG_LOAD(REG_A1, disp);
3212 /* put env into first argument register */
3214 disp = dseg_add_address(cd, _Jv_env);
3215 M_DSEG_LOAD(REG_A0, disp);
3217 /* do the native function call */
3219 M_DSEG_BRANCH(funcdisp);
3222 /* TODO: this is only needed because of the tracer ... do we
3225 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3228 #if !defined(__SOFTFP__)
3229 /* TODO: this is only a hack, since we use R0/R1 for float return! */
3230 /* this depends on gcc; it is independent from our ENABLE_SOFTFLOAT define */
3231 if (md->returntype.type != TYPE_VOID && IS_FLT_DBL_TYPE(md->returntype.type)) {
3232 #if 0 && !defined(NDEBUG)
3233 dolog("NATIVESTUB that returns float or double (%s.%s)", m->class->name->text, m->name->text);
3235 /* we cannot use this macro, since it is not defined in ENABLE_SOFTFLOAT */
3236 /* M_CAST_FLT_TO_INT_TYPED(md->returntype.type, REG_FRESULT, REG_RESULT_TYPED(md->returntype.type)); */
3237 if (IS_2_WORD_TYPE(md->returntype.type)) {
3238 DCD(0xed2d8102); /* stfd f0, [sp, #-8]! */
3239 M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
3241 DCD(0xed2d0101); /* stfs f0, [sp, #-4]!*/
3242 M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
3247 #if !defined(NDEBUG)
3248 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3249 emit_verbosecall_exit(jd);
3252 /* remove native stackframe info */
3253 /* TODO: improve this store/load */
3255 M_STMFD(BITMASK_RESULT, REG_SP);
3257 M_ADD_IMM(REG_A0, REG_SP, 2*4 + cd->stackframesize - SIZEOF_VOID_P);
3258 disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3259 M_DSEG_BRANCH(disp);
3260 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3263 M_MOV(REG_ITMP1_XPTR, REG_RESULT);
3264 M_LDMFD(BITMASK_RESULT, REG_SP);
3266 #if defined(ENABLE_GC_CACAO)
3267 /* restore callee saved int registers from stackframeinfo (GC might have */
3268 /* modified them during a collection). */
3270 disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo) +
3271 OFFSET(stackframeinfo, intregs);
3273 for (i = 0; i < INT_SAV_CNT; i++)
3274 M_LDR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
3277 /* finish stub code, but do not yet return to caller */
3279 M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
3280 M_LDMFD(1<<REG_LR, REG_SP);
3282 /* check for exception */
3284 M_TST(REG_ITMP1_XPTR, REG_ITMP1_XPTR);
3285 M_MOVEQ(REG_LR, REG_PC); /* if no exception, return to caller */
3287 /* handle exception here */
3289 M_SUB_IMM(REG_ITMP2_XPC, REG_LR, 4);/* move fault address into xpc */
3291 disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3292 M_DSEG_LOAD(REG_ITMP3, disp); /* load asm exception handler address */
3293 M_MOV(REG_PC, REG_ITMP3); /* jump to asm exception handler */
3295 /* generate patcher stubs */
3297 emit_patcher_traps(jd);
3301 /* asm_debug *******************************************************************
3305 *******************************************************************************/
3307 void asm_debug(int a1, int a2, int a3, int a4)
3309 printf("===> i am going to exit after this debugging message!\n");
3310 printf("got asm_debug(%p, %p, %p, %p)\n",(void*)a1,(void*)a2,(void*)a3,(void*)a4);
3311 vm_abort("leave you now");
3316 * These are local overrides for various environment variables in Emacs.
3317 * Please do not remove this and leave it at the end of the file, where
3318 * Emacs will automagically detect them.
3319 * ---------------------------------------------------------------------
3322 * indent-tabs-mode: t
3326 * vim:noexpandtab:sw=4:ts=4: