1 /* src/vm/jit/powerpc64/codegen.c - machine code generator for 64-bit PowerPC
3 Copyright (C) 1996-2005, 2006, 2007, 2008
4 CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
6 This file is part of CACAO.
8 This program is free software; you can redistribute it and/or
9 modify it under the terms of the GNU General Public License as
10 published by the Free Software Foundation; either version 2, or (at
11 your option) any later version.
13 This program is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
37 #include "vm/jit/powerpc64/arch.h"
38 #include "vm/jit/powerpc64/codegen.h"
40 #include "mm/memory.hpp"
42 #include "native/localref.hpp"
43 #include "native/native.hpp"
45 #include "threads/lock.hpp"
47 #include "vm/jit/builtin.hpp"
48 #include "vm/exceptions.hpp"
49 #include "vm/global.h"
50 #include "vm/loader.hpp"
51 #include "vm/options.h"
54 #include "vm/jit/abi.h"
55 #include "vm/jit/abi-asm.h"
56 #include "vm/jit/asmpart.h"
57 #include "vm/jit/codegen-common.hpp"
58 #include "vm/jit/dseg.h"
59 #include "vm/jit/emit-common.hpp"
60 #include "vm/jit/jit.hpp"
61 #include "vm/jit/linenumbertable.hpp"
62 #include "vm/jit/parse.hpp"
63 #include "vm/jit/patcher-common.hpp"
64 #include "vm/jit/reg.h"
65 #include "vm/jit/replace.hpp"
66 #include "vm/jit/stacktrace.hpp"
67 #include "vm/jit/trap.hpp"
69 #if defined(ENABLE_LSRA)
70 # include "vm/jit/allocator/lsra.h"
74 /* codegen_emit ****************************************************************
76 Generates machine code.
78 *******************************************************************************/
80 bool codegen_emit(jitdata *jd)
86 s4 len, s1, s2, s3, d, disp;
92 methodinfo *lm; /* local methodinfo for ICMD_INVOKE* */
93 unresolved_method *um;
94 builtintable_entry *bte;
101 /* get required compiler data */
108 /* prevent compiler warnings */
122 /* space to save used callee saved registers */
124 savedregs_num += (INT_SAV_CNT - rd->savintreguse);
125 savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);
127 cd->stackframesize = rd->memuse + savedregs_num;
129 #if defined(ENABLE_THREADS)
130 /* space to save argument of monitor_enter and Return Values to survive */
131 /* monitor_exit. The stack position for the argument can not be shared */
132 /* with place to save the return register on PPC64, since both values */
134 if (checksync && code_is_synchronized(code)) {
135 /* reserve 2 slots for long/double return values for monitorexit */
136 cd->stackframesize += 2;
141 /* create method header */
143 /* align stack to 16-bytes */
146 /* if (!m->isleafmethod || opt_verbosecall) */
147 /* stackframesize = (stackframesize + 3) & ~3;
149 /* else if (m->isleafmethod && (stackframesize == LA_WORD_SIZE)) */
150 /* stackframesize = 0; */
152 (void) dseg_add_unique_address(cd, code); /* CodeinfoPointer */
153 (void) dseg_add_unique_s4(cd, cd->stackframesize * 8); /* FrameSize */
155 code->synchronizedoffset = rd->memuse * 8;
157 /* REMOVEME: We still need it for exception handling in assembler. */
159 if (code_is_leafmethod(code))
160 (void) dseg_add_unique_s4(cd, 1);
162 (void) dseg_add_unique_s4(cd, 0);
164 (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
165 (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
167 /* create stack frame (if necessary) */
169 if (!code_is_leafmethod(code)) {
171 M_AST(REG_ZERO, REG_SP, LA_LR_OFFSET);
174 if (cd->stackframesize)
175 M_STDU(REG_SP, REG_SP, -cd->stackframesize * 8);
177 /* save return address and used callee saved registers */
179 p = cd->stackframesize;
180 for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
181 p--; M_LST(rd->savintregs[i], REG_SP, p * 8);
183 for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
184 p --; M_DST(rd->savfltregs[i], REG_SP, p * 8);
187 /* take arguments out of register or stack frame */
191 for (p = 0, l = 0; p < md->paramcount; p++) {
192 t = md->paramtypes[p].type;
193 varindex = jd->local_map[l*5 + t];
195 if (IS_2_WORD_TYPE(t)) /* increment local counter for 2 word types */
197 if (varindex == UNUSED)
201 s1 = md->params[p].regoff;
203 if (IS_INT_LNG_TYPE(t)) {
204 if (!md->params[p].inmemory) {
205 if (!IS_INMEMORY(var->flags))
206 M_INTMOVE(s1, var->vv.regoff);
208 M_LST(s1, REG_SP, var->vv.regoff);
211 if (!IS_INMEMORY(var->flags))
212 M_LLD(var->vv.regoff, REG_SP, cd->stackframesize * 8 + s1);
214 var->vv.regoff = cd->stackframesize * 8 + s1;
218 if (!md->params[p].inmemory) {
219 if (!IS_INMEMORY(var->flags))
220 M_FLTMOVE(s1, var->vv.regoff);
222 M_DST(s1, REG_SP, var->vv.regoff);
225 if (!(var->flags & INMEMORY)) {
226 if (IS_2_WORD_TYPE(t))
227 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize * 8 + s1);
229 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize * 8 + s1);
232 var->vv.regoff = cd->stackframesize * 8 + s1;
237 /* save monitorenter argument */
239 #if defined(ENABLE_THREADS)
241 if (checksync && code_is_synchronized(code)) {
243 /* stackoffset for argument used for LOCK_monitor_exit */
246 #if !defined (NDEBUG)
247 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
248 M_AADD_IMM(REG_SP, -((LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8), REG_SP);
250 for (p = 0; p < INT_ARG_CNT; p++)
251 M_LST(abi_registers_integer_argument[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
253 for (p = 0; p < FLT_ARG_CNT; p++)
254 M_DST(abi_registers_float_argument[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
256 /* used for LOCK_monitor_exit, adopt size because we created another stackframe */
257 s1 += (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT);
261 p = dseg_add_functionptr(cd, LOCK_monitor_enter);
262 M_ALD(REG_ITMP3, REG_PV, p);
263 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
266 /* get or test the lock object */
268 if (m->flags & ACC_STATIC) {
269 p = dseg_add_address(cd, &m->clazz->object.header);
270 M_ALD(REG_A0, REG_PV, p);
275 M_ALD_INTERN(REG_ZERO, REG_ZERO, TRAP_NullPointerException);
278 M_AST(REG_A0, REG_SP, s1 * 8); /* rd->memuse * 8 */
282 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
283 for (p = 0; p < INT_ARG_CNT; p++)
284 M_LLD(abi_registers_integer_argument[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
286 for (p = 0; p < FLT_ARG_CNT; p++)
287 M_DLD(abi_registers_float_argument[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
289 M_AADD_IMM(REG_SP, (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8, REG_SP);
295 /* call trace function */
296 #if !defined (NDEBUG)
297 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
298 emit_verbosecall_enter(jd);
303 /* end of header generation */
305 /* create replacement points */
307 REPLACEMENT_POINTS_INIT(cd, jd);
309 /* walk through all basic blocks */
311 for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
313 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
315 if (bptr->flags >= BBREACHED) {
317 /* branch resolving */
318 codegen_resolve_branchrefs(cd, bptr);
320 /* handle replacement points */
322 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
324 /* copy interface registers to their destination */
329 #if defined(ENABLE_LSRA)
333 var = VAR(bptr->invars[len]);
334 if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
335 /* d = reg_of_var(m, var, REG_ITMP1); */
336 if (!(var->flags & INMEMORY))
340 M_INTMOVE(REG_ITMP1, d);
341 emit_store(jd, NULL, var, d);
348 var = VAR(bptr->invars[len]);
349 if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
350 d = codegen_reg_of_var(0, var, REG_ITMP1);
351 M_INTMOVE(REG_ITMP1, d);
352 emit_store(jd, NULL, var, d);
355 assert((var->flags & INOUT));
359 #if defined(ENABLE_LSRA)
362 /* walk through all instructions */
367 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
368 if (iptr->line != currentline) {
369 linenumbertable_list_entry_add(cd, iptr->line);
370 currentline = iptr->line;
373 MCODECHECK(128); /* an instruction usually needs < 64 words */
376 case ICMD_NOP: /* ... ==> ... */
377 case ICMD_POP: /* ..., value ==> ... */
378 case ICMD_POP2: /* ..., value, value ==> ... */
381 case ICMD_INLINE_START:
383 REPLACEMENT_POINT_INLINE_START(cd, iptr);
386 case ICMD_INLINE_BODY:
388 REPLACEMENT_POINT_INLINE_BODY(cd, iptr);
389 linenumbertable_list_entry_add_inline_start(cd, iptr);
390 linenumbertable_list_entry_add(cd, iptr->line);
393 case ICMD_INLINE_END:
395 linenumbertable_list_entry_add_inline_end(cd, iptr);
396 linenumbertable_list_entry_add(cd, iptr->line);
399 case ICMD_CHECKNULL: /* ..., objectref ==> ..., objectref */
401 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
404 emit_nullpointer_check(cd, iptr, s1);
407 /* constant operations ************************************************/
409 case ICMD_ICONST: /* ... ==> ..., constant */
411 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
412 ICONST(d, iptr->sx.val.i);
413 emit_store_dst(jd, iptr, d);
416 case ICMD_LCONST: /* ... ==> ..., constant */
418 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
419 LCONST(d, iptr->sx.val.l);
420 emit_store_dst(jd, iptr, d);
423 case ICMD_FCONST: /* ... ==> ..., constant */
425 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
426 a = dseg_add_float(cd, iptr->sx.val.f);
428 emit_store_dst(jd, iptr, d);
431 case ICMD_DCONST: /* ... ==> ..., constant */
433 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
434 a = dseg_add_double(cd, iptr->sx.val.d);
436 emit_store_dst(jd, iptr, d);
439 case ICMD_ACONST: /* ... ==> ..., constant */
441 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
443 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
444 disp = dseg_add_unique_address(cd, iptr->sx.val.c.ref);
445 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
449 disp = dseg_add_address(cd, iptr->sx.val.anyptr);
451 M_ALD(d, REG_PV, disp);
452 emit_store_dst(jd, iptr, d);
456 /* load/store/copy/move operations ************************************/
458 case ICMD_ILOAD: /* ... ==> ..., content of local variable */
459 case ICMD_ALOAD: /* s1.localindex = local variable */
463 case ICMD_ISTORE: /* ..., value ==> ... */
474 if (!(iptr->flags.bits & INS_FLAG_RETADDR))
479 /* integer operations *************************************************/
481 case ICMD_INEG: /* ..., value ==> ..., - value */
482 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
483 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
486 emit_store_dst(jd, iptr, d);
490 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
491 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
493 emit_store_dst(jd, iptr, d);
497 case ICMD_I2L: /* ..., value ==> ..., value */
499 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
500 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
502 emit_store_dst(jd, iptr, d);
505 case ICMD_L2I: /* ..., value ==> ..., value */
507 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
508 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
510 emit_store_dst(jd, iptr, d);
513 case ICMD_INT2BYTE: /* ..., value ==> ..., value */
515 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
516 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
518 emit_store_dst(jd, iptr, d);
521 case ICMD_INT2CHAR: /* ..., value ==> ..., value */
523 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
524 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
526 emit_store_dst(jd, iptr, d);
529 case ICMD_INT2SHORT: /* ..., value ==> ..., value */
531 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
532 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
534 emit_store_dst(jd, iptr, d);
538 case ICMD_IADD: /* ..., val1, val2 ==> ..., val1 + val2 */
540 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
541 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
542 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
545 emit_store_dst(jd, iptr, d);
551 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
552 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
553 if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767)) {
554 M_IADD_IMM(s1, iptr->sx.val.i, d);
556 ICONST(REG_ITMP2, iptr->sx.val.i);
557 M_IADD(s1, REG_ITMP2, d);
560 emit_store_dst(jd, iptr, d);
563 case ICMD_LADD: /* ..., val1, val2 ==> ..., val1 + val2 */
565 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
566 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
567 d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
569 emit_store_dst(jd, iptr, d);
572 case ICMD_LADDCONST: /* ..., value ==> ..., value + constant */
573 /* sx.val.l = constant */
575 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
576 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
578 if ((iptr->sx.val.l >= -32768) && (iptr->sx.val.l <= 32767)) {
579 M_LADD_IMM(s1, iptr->sx.val.l, d);
581 LCONST(REG_ITMP2, iptr->sx.val.l);
582 M_LADD(s1, REG_ITMP2, d);
584 emit_store_dst(jd, iptr, d);
587 case ICMD_ISUB: /* ..., val1, val2 ==> ..., val1 - val2 */
589 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
590 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
591 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
594 emit_store_dst(jd, iptr, d);
597 case ICMD_ISUBCONST: /* ..., value ==> ..., value + constant */
598 /* sx.val.i = constant */
600 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
601 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
602 if ((iptr->sx.val.i >= -32767) && (iptr->sx.val.i <= 32768)) {
603 M_IADD_IMM(s1, -iptr->sx.val.i, d);
605 ICONST(REG_ITMP2, iptr->sx.val.i);
606 M_SUB(s1, REG_ITMP2, d);
609 emit_store_dst(jd, iptr, d);
612 case ICMD_LSUB: /* ..., val1, val2 ==> ..., val1 - val2 */
614 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
615 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
616 d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
618 emit_store_dst(jd, iptr, d);
621 case ICMD_LSUBCONST: /* ..., value ==> ..., value - constant */
622 /* sx.val.l = constant */
624 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
625 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
627 if ((iptr->sx.val.l >= -32767) && (iptr->sx.val.l <= 32767)) {
628 M_LADD_IMM(s1, -iptr->sx.val.l, d);
630 LCONST(REG_ITMP2, iptr->sx.val.l);
631 M_SUB(s1, REG_ITMP2, d);
633 emit_store_dst(jd, iptr, d);
637 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
638 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
639 d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
640 emit_arithmetic_check(cd, iptr, s2);
644 emit_store_dst(jd, iptr, d);
647 case ICMD_LDIV: /* ..., val1, val2 ==> ..., val1 / val2 */
649 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
650 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
651 d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
652 emit_arithmetic_check(cd, iptr, s2);
655 /* we need to test if divident was 0x8000000000000, bit OV is set in XER in this case */
656 /* we only need to check this if we did a LDIV, not for IDIV */
658 M_ANDIS(REG_ITMP2, 0x4000, REG_ITMP2); /* test OV */
660 M_MOV(s1, d); /* java specs says result == dividend */
661 emit_store_dst(jd, iptr, d);
665 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
666 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
667 emit_arithmetic_check(cd, iptr, s2);
669 M_DIV(s1, s2, REG_ITMP3);
670 M_MUL(REG_ITMP3, s2, REG_ITMP2);
671 M_SUB(s1, REG_ITMP2, REG_ITMP3);
672 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
675 emit_store_dst(jd, iptr, d);
679 case ICMD_LREM: /* ..., val1, val2 ==> ..., val1 % val2 */
680 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
681 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
682 emit_arithmetic_check(cd, iptr, s2);
684 M_DIV(s1, s2, REG_ITMP3);
685 /* we need to test if divident was 0x8000000000000, bit OV is set in XER in this case */
686 /* we only need to check this if we did a LDIV, not for IDIV */
688 M_ANDIS(REG_ITMP2, 0x4000, REG_ITMP2); /* test OV */
690 LCONST(REG_ITMP3, 0); /* result == 0 in this case */
691 M_BR(2 + (s2==REG_ITMP2));
692 /* might require a reload */
693 emit_load_s2(jd, iptr, REG_ITMP2);
694 M_MUL(REG_ITMP3, s2, REG_ITMP2);
695 M_SUB(s1, REG_ITMP2, REG_ITMP3);
696 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
699 emit_store_dst(jd, iptr, d);
703 case ICMD_IMUL: /* ..., val1, val2 ==> ..., val1 * val2 */
704 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
705 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
706 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
709 emit_store_dst(jd, iptr, d);
713 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
714 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
715 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
717 emit_store_dst(jd, iptr, d);
720 case ICMD_IMULCONST: /* ..., value ==> ..., value * constant */
721 /* sx.val.i = constant */
723 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
724 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
725 if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
726 M_MUL_IMM(s1, iptr->sx.val.i, d);
728 ICONST(REG_ITMP3, iptr->sx.val.i);
729 M_MUL(s1, REG_ITMP3, d);
732 emit_store_dst(jd, iptr, d);
735 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
736 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
737 if ((iptr->sx.val.l >= -32767) && (iptr->sx.val.l <= 32767))
738 M_MUL_IMM(s1, iptr->sx.val.l, d);
740 LCONST(REG_ITMP3, iptr->sx.val.l);
741 M_MUL(s1, REG_ITMP3, d);
743 emit_store_dst(jd, iptr, d);
746 case ICMD_IDIVPOW2: /* ..., value ==> ..., value << constant */
748 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
749 d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
750 M_SRA_IMM(s1, iptr->sx.val.i, d);
753 emit_store_dst(jd, iptr, d);
756 case ICMD_ISHL: /* ..., val1, val2 ==> ..., val1 << val2 */
758 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
759 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
760 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
761 M_AND_IMM(s2, 0x1f, REG_ITMP3);
762 M_SLL(s1, REG_ITMP3, d);
764 emit_store_dst(jd, iptr, d);
767 case ICMD_ISHLCONST: /* ..., value ==> ..., value << constant */
768 /* sx.val.i = constant */
770 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
771 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
772 M_SLL_IMM(s1, iptr->sx.val.i & 0x1f, d);
774 emit_store_dst(jd, iptr, d);
777 case ICMD_ISHR: /* ..., val1, val2 ==> ..., val1 >> val2 */
779 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
780 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
781 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
782 M_AND_IMM(s2, 0x1f, REG_ITMP3);
783 M_SRA(s1, REG_ITMP3, d);
784 emit_store_dst(jd, iptr, d);
787 case ICMD_ISHRCONST: /* ..., value ==> ..., value >> constant */
788 /* sx.val.i = constant */
790 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
791 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
792 M_SRA_IMM(s1, iptr->sx.val.i & 0x1f, d);
793 emit_store_dst(jd, iptr, d);
796 case ICMD_IUSHR: /* ..., val1, val2 ==> ..., val1 >>> val2 */
798 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
799 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
800 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
801 M_AND_IMM(s2, 0x1f, REG_ITMP2);
802 M_MOV(s1, REG_ITMP1);
803 M_CLR_HIGH(REG_ITMP1);
804 M_SRL(REG_ITMP1, REG_ITMP2, d);
805 M_EXTSW(d,d); /* for the case it was shift 0 bits */
806 emit_store_dst(jd, iptr, d);
809 case ICMD_IUSHRCONST: /* ..., value ==> ..., value >>> constant */
810 /* sx.val.i = constant */
812 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
813 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
814 if (iptr->sx.val.i & 0x1f) {
815 M_MOV(s1, REG_ITMP1);
816 M_CLR_HIGH(REG_ITMP1);
817 M_SRA_IMM(REG_ITMP1, iptr->sx.val.i & 0x1f, d);
821 emit_store_dst(jd, iptr, d);
825 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
826 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
827 M_SLL_IMM(s1, iptr->sx.val.i & 0x3f, d);
828 emit_store_dst(jd, iptr, d);
831 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
832 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
833 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
834 M_AND_IMM(s2, 0x3f, REG_ITMP2);
835 M_SLL(s1, REG_ITMP2, d);
836 emit_store_dst(jd, iptr, d);
839 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
840 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
841 M_SRA_IMM(s1, iptr->sx.val.i & 0x3f, d);
842 emit_store_dst(jd, iptr, d);
845 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
846 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
847 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
848 M_AND_IMM(s2, 0x3f, REG_ITMP2);
849 M_SRA(s1, REG_ITMP2, d);
850 emit_store_dst(jd, iptr, d);
852 case ICMD_LUSHRCONST:
853 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
854 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
855 M_SRL_IMM(s1, iptr->sx.val.i & 0x3f, d);
856 emit_store_dst(jd, iptr, d);
859 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
860 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
861 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
862 M_AND_IMM(s2, 0x3f, REG_ITMP2);
863 M_SRL(s1, REG_ITMP2, d);
864 emit_store_dst(jd, iptr, d);
867 case ICMD_IAND: /* ..., val1, val2 ==> ..., val1 & val2 */
868 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
869 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
870 d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
873 emit_store_dst(jd, iptr, d);
877 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
878 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
879 d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
881 emit_store_dst(jd, iptr, d);
884 case ICMD_IANDCONST: /* ..., value ==> ..., value & constant */
885 /* sx.val.i = constant */
887 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
888 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
889 if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535)) {
890 M_AND_IMM(s1, iptr->sx.val.i, d);
893 else if (iptr->sx.val.i == 0xffffff) {
894 M_RLWINM(s1, 0, 8, 31, d);
898 ICONST(REG_ITMP3, iptr->sx.val.i);
899 M_AND(s1, REG_ITMP3, d);
901 emit_store_dst(jd, iptr, d);
904 case ICMD_LANDCONST: /* ..., value ==> ..., value & constant */
905 /* sx.val.l = constant */
907 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
908 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
909 if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
910 M_AND_IMM(s1, iptr->sx.val.l, d);
912 else if (iptr->sx.val.l == 0xffffff) {
913 M_RLWINM(s1, 0, 8, 31, d);
917 LCONST(REG_ITMP3, iptr->sx.val.l);
918 M_AND(s1, REG_ITMP3, d);
920 emit_store_dst(jd, iptr, d);
923 case ICMD_IREMPOW2: /* ..., value ==> ..., value % constant */
924 /* sx.val.i = constant */
925 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
926 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
928 /* fast division, result in REG_ITMP3) */
929 M_SRA_IMM(s1, iptr->sx.val.i, REG_ITMP3);
930 M_ADDZE(REG_ITMP3, REG_ITMP3);
932 M_SUB(s1, REG_ITMP3, d);
934 emit_store_dst(jd, iptr, d);
938 M_MOV(s1, REG_ITMP2);
940 M_BGE(1 + 3*(iptr->sx.val.i >= 32768));
941 if (iptr->sx.val.i >= 32768) {
942 M_ADDIS(REG_ZERO, iptr->sx.val.i >> 16, REG_ITMP2);
943 M_EXTSW(REG_ITMP2, REG_ITMP2);
944 M_OR_IMM(REG_ITMP2, iptr->sx.val.i, REG_ITMP2);
945 M_IADD(s1, REG_ITMP2, REG_ITMP2);
947 M_IADD_IMM(s1, iptr->sx.val.i, REG_ITMP2);
950 int b=0, m = iptr->sx.val.i;
953 M_RLWINM(REG_ITMP2, 0, 0, 30-b, REG_ITMP2);
955 M_SUB(s1, REG_ITMP2, d);
957 emit_store_dst(jd, iptr, d);
961 case ICMD_IOR: /* ..., val1, val2 ==> ..., val1 | val2 */
962 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
963 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
964 d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
967 emit_store_dst(jd, iptr, d);
972 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
973 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
974 d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
976 emit_store_dst(jd, iptr, d);
979 case ICMD_IORCONST: /* ..., value ==> ..., value | constant */
980 /* sx.val.i = constant */
982 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
983 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
984 if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
985 M_OR_IMM(s1, iptr->sx.val.i, d);
987 ICONST(REG_ITMP3, iptr->sx.val.i);
988 M_OR(s1, REG_ITMP3, d);
990 emit_store_dst(jd, iptr, d);
993 case ICMD_LORCONST: /* ..., value ==> ..., value | constant */
994 /* sx.val.l = constant */
996 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
997 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
998 if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
999 M_OR_IMM(s1, iptr->sx.val.l, d);
1001 LCONST(REG_ITMP3, iptr->sx.val.l);
1002 M_OR(s1, REG_ITMP3, d);
1004 emit_store_dst(jd, iptr, d);
1008 case ICMD_IXOR: /* ..., val1, val2 ==> ..., val1 ^ val2 */
1011 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1012 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1013 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1015 emit_store_dst(jd, iptr, d);
1018 case ICMD_IXORCONST: /* ..., value ==> ..., value ^ constant */
1019 /* sx.val.i = constant */
1021 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1022 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1023 if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1024 M_XOR_IMM(s1, iptr->sx.val.i, d);
1026 ICONST(REG_ITMP3, iptr->sx.val.i);
1027 M_XOR(s1, REG_ITMP3, d);
1029 emit_store_dst(jd, iptr, d);
1032 case ICMD_LXORCONST: /* ..., value ==> ..., value ^ constant */
1033 /* sx.val.l = constant */
1035 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1036 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1037 if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
1038 M_XOR_IMM(s1, iptr->sx.val.l, d);
1040 LCONST(REG_ITMP3, iptr->sx.val.l);
1041 M_XOR(s1, REG_ITMP3, d);
1043 emit_store_dst(jd, iptr, d);
1046 case ICMD_LCMP: /* ..., val1, val2 ==> ..., val1 cmp val2 */
1048 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1049 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1050 d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1051 /* XXX implement me!!! */
1052 vm_abort("codegen: implement ICMD_LCMP!");
1053 emit_store_dst(jd, iptr, d);
1058 /* floating operations ************************************************/
1060 case ICMD_FNEG: /* ..., value ==> ..., - value */
1062 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1063 d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1065 emit_store_dst(jd, iptr, d);
1068 case ICMD_DNEG: /* ..., value ==> ..., - value */
1070 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1071 d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1073 emit_store_dst(jd, iptr, d);
1076 case ICMD_FADD: /* ..., val1, val2 ==> ..., val1 + val2 */
1078 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1079 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1080 d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1082 emit_store_dst(jd, iptr, d);
1085 case ICMD_DADD: /* ..., val1, val2 ==> ..., val1 + val2 */
1087 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1088 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1089 d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1091 emit_store_dst(jd, iptr, d);
1094 case ICMD_FSUB: /* ..., val1, val2 ==> ..., val1 - val2 */
1096 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1097 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1098 d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1100 emit_store_dst(jd, iptr, d);
1103 case ICMD_DSUB: /* ..., val1, val2 ==> ..., val1 - val2 */
1105 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1106 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1107 d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1109 emit_store_dst(jd, iptr, d);
1112 case ICMD_FMUL: /* ..., val1, val2 ==> ..., val1 * 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_FTMP3);
1118 emit_store_dst(jd, iptr, d);
1121 case ICMD_DMUL: /* ..., val1, val2 ==> ..., val1 * val2 */
1123 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1124 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1125 d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1127 emit_store_dst(jd, iptr, d);
1130 case ICMD_FDIV: /* ..., val1, val2 ==> ..., val1 / val2 */
1132 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1133 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1134 d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1136 emit_store_dst(jd, iptr, d);
1139 case ICMD_DDIV: /* ..., val1, val2 ==> ..., val1 / val2 */
1141 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1142 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1143 d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1145 emit_store_dst(jd, iptr, d);
1148 case ICMD_F2I: /* ..., value ==> ..., (int) value */
1151 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1152 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1154 disp = dseg_add_float(cd, 0.0);
1155 M_FLD(REG_FTMP2, REG_PV, disp);
1156 M_FCMPU(s1, REG_FTMP2);
1158 disp = dseg_add_unique_s4(cd, 0);
1159 M_CVTDL_C(s1, REG_FTMP1);
1160 M_LDA(REG_ITMP1, REG_PV, disp);
1161 M_STFIWX(REG_FTMP1, 0, REG_ITMP1);
1162 M_ILD(d, REG_PV, disp);
1163 emit_store_dst(jd, iptr, d);
1166 case ICMD_F2D: /* ..., value ==> ..., (double) value */
1168 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1169 d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1171 emit_store_dst(jd, iptr, d);
1174 case ICMD_D2F: /* ..., value ==> ..., (double) value */
1176 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1177 d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1179 emit_store_dst(jd, iptr, d);
1182 case ICMD_FCMPL: /* ..., val1, val2 ==> ..., val1 fcmpg val2 */
1183 case ICMD_DCMPL: /* == => 0, < => 1, > => -1 */
1185 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1186 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1187 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1189 M_IADD_IMM(REG_ZERO, -1, d);
1192 M_IADD_IMM(REG_ZERO, 0, d);
1194 M_IADD_IMM(REG_ZERO, 1, d);
1195 emit_store_dst(jd, iptr, d);
1198 case ICMD_FCMPG: /* ..., val1, val2 ==> ..., val1 fcmpl val2 */
1199 case ICMD_DCMPG: /* == => 0, < => 1, > => -1 */
1201 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1202 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1203 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1205 M_IADD_IMM(REG_ZERO, 1, d);
1208 M_IADD_IMM(REG_ZERO, 0, d);
1210 M_IADD_IMM(REG_ZERO, -1, d);
1211 emit_store_dst(jd, iptr, d);
1215 /* memory operations **************************************************/
1217 case ICMD_ARRAYLENGTH: /* ..., arrayref ==> ..., length */
1219 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1220 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1221 emit_nullpointer_check(cd, iptr, s1);
1222 M_ILD(d, s1, OFFSET(java_array_t, size));
1223 emit_store_dst(jd, iptr, d);
1226 case ICMD_BALOAD: /* ..., arrayref, index ==> ..., value */
1228 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1229 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1230 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1231 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1232 M_IADD_IMM(s2, OFFSET(java_bytearray_t, data[0]), REG_ITMP2);
1233 /* implicit null-pointer check */
1234 M_LBZX(d, s1, REG_ITMP2);
1236 emit_store_dst(jd, iptr, d);
1239 case ICMD_CALOAD: /* ..., arrayref, index ==> ..., value */
1241 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1242 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1243 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1244 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1245 M_SLL_IMM(s2, 1, REG_ITMP2);
1246 M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray_t, data[0]), REG_ITMP2);
1247 /* implicit null-pointer check */
1248 M_LHZX(d, s1, REG_ITMP2);
1249 emit_store_dst(jd, iptr, d);
1252 case ICMD_SALOAD: /* ..., arrayref, index ==> ..., value */
1254 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1255 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1256 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1257 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1258 M_SLL_IMM(s2, 1, REG_ITMP2);
1259 M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray_t, data[0]), REG_ITMP2);
1260 /* implicit null-pointer check */
1261 M_LHAX(d, s1, REG_ITMP2);
1262 emit_store_dst(jd, iptr, d);
1265 case ICMD_IALOAD: /* ..., arrayref, index ==> ..., value */
1267 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1268 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1269 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1270 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1271 M_SLL_IMM(s2, 2, REG_ITMP2);
1272 M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray_t, data[0]), REG_ITMP2);
1273 /* implicit null-pointer check */
1274 M_LWAX(d, s1, REG_ITMP2);
1275 emit_store_dst(jd, iptr, d);
1278 case ICMD_LALOAD: /* ..., arrayref, index ==> ..., value */
1280 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1281 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1282 d = codegen_reg_of_dst(jd, iptr, PACK_REGS(REG_ITMP2, REG_ITMP1));
1283 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1284 M_SLL_IMM(s2, 3, REG_ITMP2);
1285 M_IADD(s1, REG_ITMP2, REG_ITMP2);
1286 /* implicit null-pointer check */
1287 M_LLD_INTERN(d, REG_ITMP2, OFFSET(java_longarray_t, data[0]));
1288 emit_store_dst(jd, iptr, d);
1291 case ICMD_FALOAD: /* ..., arrayref, index ==> ..., value */
1293 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1294 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1295 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1296 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1297 M_SLL_IMM(s2, 2, REG_ITMP2);
1298 M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray_t, data[0]), REG_ITMP2);
1299 /* implicit null-pointer check */
1300 M_LFSX(d, s1, REG_ITMP2);
1301 emit_store_dst(jd, iptr, d);
1304 case ICMD_DALOAD: /* ..., arrayref, index ==> ..., value */
1306 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1307 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1308 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1309 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1310 M_SLL_IMM(s2, 3, REG_ITMP2);
1311 M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray_t, data[0]), REG_ITMP2);
1312 /* implicit null-pointer check */
1313 M_LFDX(d, s1, REG_ITMP2);
1314 emit_store_dst(jd, iptr, d);
1317 case ICMD_AALOAD: /* ..., arrayref, index ==> ..., value */
1319 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1320 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1321 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1322 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1323 M_SLL_IMM(s2, 3, REG_ITMP2);
1324 M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray_t, data[0]), REG_ITMP2);
1325 /* implicit null-pointer check */
1326 M_ALDX(d, s1, REG_ITMP2);
1327 emit_store_dst(jd, iptr, d);
1331 case ICMD_BASTORE: /* ..., arrayref, index, value ==> ... */
1333 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1334 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1335 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1336 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1337 M_IADD_IMM(s2, OFFSET(java_bytearray_t, data[0]), REG_ITMP2);
1338 /* implicit null-pointer check */
1339 M_STBX(s3, s1, REG_ITMP2);
1342 case ICMD_CASTORE: /* ..., arrayref, index, value ==> ... */
1344 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1345 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1346 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1347 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1348 M_SLL_IMM(s2, 1, REG_ITMP2);
1349 M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray_t, data[0]), REG_ITMP2);
1350 /* implicit null-pointer check */
1351 M_STHX(s3, s1, REG_ITMP2);
1354 case ICMD_SASTORE: /* ..., arrayref, index, value ==> ... */
1356 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1357 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1358 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1359 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1360 M_SLL_IMM(s2, 1, REG_ITMP2);
1361 M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray_t, data[0]), REG_ITMP2);
1362 M_STHX(s3, s1, REG_ITMP2);
1365 case ICMD_IASTORE: /* ..., arrayref, index, value ==> ... */
1367 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1368 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1369 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1370 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1371 M_SLL_IMM(s2, 2, REG_ITMP2);
1372 M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray_t, data[0]), REG_ITMP2);
1373 /* implicit null-pointer check */
1374 M_STWX(s3, s1, REG_ITMP2);
1377 case ICMD_LASTORE: /* ..., arrayref, index, value ==> ... */
1379 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1380 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1381 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1382 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1383 M_SLL_IMM(s2, 3, REG_ITMP2);
1384 M_IADD_IMM(REG_ITMP2, OFFSET(java_longarray_t, data[0]), REG_ITMP2);
1385 /* implicit null-pointer check */
1386 M_LSTX(s3, s1, REG_ITMP2);
1389 case ICMD_FASTORE: /* ..., arrayref, index, value ==> ... */
1391 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1392 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1393 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1394 s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1395 M_SLL_IMM(s2, 2, REG_ITMP2);
1396 M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray_t, data[0]), REG_ITMP2);
1397 /* implicit null-pointer check */
1398 M_STFSX(s3, s1, REG_ITMP2);
1401 case ICMD_DASTORE: /* ..., arrayref, index, value ==> ... */
1403 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1404 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1405 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1406 s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1407 M_SLL_IMM(s2, 3, REG_ITMP2);
1408 M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray_t, data[0]), REG_ITMP2);
1409 /* implicit null-pointer check */
1410 M_STFDX(s3, s1, REG_ITMP2);
1413 case ICMD_AASTORE: /* ..., arrayref, index, value ==> ... */
1415 s1 = emit_load_s1(jd, iptr, REG_A0);
1416 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1417 emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1418 s3 = emit_load_s3(jd, iptr, REG_A1);
1420 disp = dseg_add_functionptr(cd, BUILTIN_FAST_canstore);
1421 M_ALD(REG_ITMP3, REG_PV, disp);
1422 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1425 M_INTMOVE(s1, REG_A0);
1426 M_INTMOVE(s3, REG_A1);
1429 emit_arraystore_check(cd, iptr);
1431 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1432 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1433 s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1434 M_SLL_IMM(s2, 3, REG_ITMP2);
1435 M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray_t, data[0]), REG_ITMP2);
1436 /* implicit null-pointer check */
1437 M_ASTX(s3, s1, REG_ITMP2);
1441 case ICMD_GETSTATIC: /* ... ==> ..., value */
1443 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1444 uf = iptr->sx.s23.s3.uf;
1445 fieldtype = uf->fieldref->parseddesc.fd->type;
1446 disp = dseg_add_unique_address(cd, NULL);
1448 patcher_add_patch_ref(jd, PATCHER_get_putstatic,
1449 iptr->sx.s23.s3.uf, disp);
1453 fi = iptr->sx.s23.s3.fmiref->p.field;
1454 fieldtype = fi->type;
1455 disp = dseg_add_address(cd, fi->value);
1457 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->clazz)) {
1458 patcher_add_patch_ref(jd, PATCHER_initialize_class, fi->clazz, disp);
1462 M_ALD(REG_ITMP1, REG_PV, disp);
1463 switch (fieldtype) {
1465 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1466 M_ILD_INTERN(d, REG_ITMP1, 0);
1469 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1470 M_LLD(d, REG_ITMP1, 0);
1473 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1474 M_ALD_INTERN(d, REG_ITMP1, 0);
1477 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1478 M_FLD_INTERN(d, REG_ITMP1, 0);
1481 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1482 M_DLD_INTERN(d, REG_ITMP1, 0);
1485 emit_store_dst(jd, iptr, d);
1488 case ICMD_PUTSTATIC: /* ..., value ==> ... */
1491 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1492 uf = iptr->sx.s23.s3.uf;
1493 fieldtype = uf->fieldref->parseddesc.fd->type;
1494 disp = dseg_add_unique_address(cd, NULL);
1496 patcher_add_patch_ref(jd, PATCHER_get_putstatic,
1497 iptr->sx.s23.s3.uf, disp);
1500 fi = iptr->sx.s23.s3.fmiref->p.field;
1501 fieldtype = fi->type;
1502 disp = dseg_add_address(cd, fi->value);
1504 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->clazz)) {
1505 patcher_add_patch_ref(jd, PATCHER_initialize_class, fi->clazz, disp);
1509 M_ALD(REG_ITMP1, REG_PV, disp);
1510 switch (fieldtype) {
1512 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1513 M_IST_INTERN(s1, REG_ITMP1, 0);
1516 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1517 M_LST_INTERN(s1, REG_ITMP1, 0);
1520 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1521 M_AST_INTERN(s1, REG_ITMP1, 0);
1524 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1525 M_FST_INTERN(s1, REG_ITMP1, 0);
1528 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1529 M_DST_INTERN(s1, REG_ITMP1, 0);
1535 case ICMD_GETFIELD: /* ... ==> ..., value */
1537 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1539 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1540 uf = iptr->sx.s23.s3.uf;
1541 fieldtype = uf->fieldref->parseddesc.fd->type;
1544 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1547 fi = iptr->sx.s23.s3.fmiref->p.field;
1548 fieldtype = fi->type;
1552 /* implicit null-pointer check */
1553 switch (fieldtype) {
1555 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1559 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1563 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1567 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1571 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1575 emit_store_dst(jd, iptr, d);
1578 case ICMD_PUTFIELD: /* ..., value ==> ... */
1580 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1582 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1583 uf = iptr->sx.s23.s3.uf;
1584 fieldtype = uf->fieldref->parseddesc.fd->type;
1588 fi = iptr->sx.s23.s3.fmiref->p.field;
1589 fieldtype = fi->type;
1593 if (IS_INT_LNG_TYPE(fieldtype)) {
1594 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1597 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1599 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1600 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1604 /* implicit null-pointer check */
1605 switch (fieldtype) {
1607 M_IST(s2, s1, disp);
1610 M_LST(s2, s1, disp);
1613 M_AST(s2, s1, disp);
1616 M_FST(s2, s1, disp);
1619 M_DST(s2, s1, disp);
1625 /* branch operations **************************************************/
1627 case ICMD_ATHROW: /* ..., objectref ==> ... (, objectref) */
1629 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1630 M_LNGMOVE(s1, REG_ITMP1_XPTR);
1632 #ifdef ENABLE_VERIFIER
1633 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1634 patcher_add_patch_ref(jd, PATCHER_resolve_class,
1635 iptr->sx.s23.s2.uc, 0);
1637 #endif /* ENABLE_VERIFIER */
1639 disp = dseg_add_functionptr(cd, asm_handle_exception);
1640 M_ALD(REG_ITMP2, REG_PV, disp);
1643 if (code_is_leafmethod(code))
1644 M_MFLR(REG_ITMP3); /* save LR */
1646 M_BL(0); /* get current PC */
1647 M_MFLR(REG_ITMP2_XPC);
1649 if (code_is_leafmethod(code))
1650 M_MTLR(REG_ITMP3); /* restore LR */
1652 M_RTS; /* jump to CTR */
1656 case ICMD_GOTO: /* ... ==> ... */
1657 case ICMD_RET: /* ... ==> ... */
1659 emit_br(cd, iptr->dst.block);
1663 case ICMD_JSR: /* ... ==> ... */
1665 emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1669 case ICMD_IFNULL: /* ..., value ==> ... */
1671 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1673 emit_beq(cd, iptr->dst.block);
1676 case ICMD_IFNONNULL: /* ..., value ==> ... */
1678 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1680 emit_bne(cd, iptr->dst.block);
1688 case ICMD_IFEQ: /* ..., value ==> ... */
1690 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1691 if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
1692 M_CMPI(s1, iptr->sx.val.i);
1694 ICONST(REG_ITMP2, iptr->sx.val.i);
1695 M_CMP(s1, REG_ITMP2);
1697 emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1700 case ICMD_IF_LEQ: /* ..., value ==> ... */
1701 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1702 LCONST(REG_ITMP2, iptr->sx.val.l);
1703 M_CMP(s1, REG_ITMP2);
1704 emit_beq(cd, iptr->dst.block);
1706 case ICMD_IF_LLT: /* ..., value ==> ... */
1707 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1708 LCONST(REG_ITMP2, iptr->sx.val.l);
1709 M_CMP(s1, REG_ITMP2);
1710 emit_blt(cd, iptr->dst.block);
1712 case ICMD_IF_LLE: /* ..., value ==> ... */
1713 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1714 LCONST(REG_ITMP2, iptr->sx.val.l);
1715 M_CMP(s1, REG_ITMP2);
1716 emit_ble(cd, iptr->dst.block);
1719 case ICMD_IF_LNE: /* ..., value ==> ... */
1720 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1721 LCONST(REG_ITMP2, iptr->sx.val.l);
1722 M_CMP(s1, REG_ITMP2);
1723 emit_bne(cd, iptr->dst.block);
1725 case ICMD_IF_LGE: /* ..., value ==> ... */
1726 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1727 LCONST(REG_ITMP2, iptr->sx.val.l);
1728 M_CMP(s1, REG_ITMP2);
1729 emit_bge(cd, iptr->dst.block);
1731 case ICMD_IF_LGT: /* ..., value ==> ... */
1732 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1733 LCONST(REG_ITMP2, iptr->sx.val.l);
1734 M_CMP(s1, REG_ITMP2);
1735 emit_bgt(cd, iptr->dst.block);
1737 case ICMD_IF_ICMPEQ: /* ..., value, value ==> ... */
1738 case ICMD_IF_ACMPEQ: /* op1 = target JavaVM pc */
1739 case ICMD_IF_LCMPEQ:
1741 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1742 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1744 emit_beq(cd, iptr->dst.block);
1747 case ICMD_IF_ICMPNE: /* ..., value, value ==> ... */
1748 case ICMD_IF_ACMPNE: /* op1 = target JavaVM pc */
1749 case ICMD_IF_LCMPNE:
1751 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1752 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1754 emit_bne(cd, iptr->dst.block);
1758 case ICMD_IF_ICMPLT: /* ..., value, value ==> ... */
1759 case ICMD_IF_LCMPLT:
1761 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1762 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1764 emit_blt(cd, iptr->dst.block);
1767 case ICMD_IF_ICMPGT: /* ..., value, value ==> ... */
1768 case ICMD_IF_LCMPGT:
1770 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1771 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1773 emit_bgt(cd, iptr->dst.block);
1776 case ICMD_IF_ICMPLE: /* ..., value, value ==> ... */
1777 case ICMD_IF_LCMPLE:
1779 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1780 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1782 emit_ble(cd, iptr->dst.block);
1785 case ICMD_IF_ICMPGE: /* ..., value, value ==> ... */
1786 case ICMD_IF_LCMPGE:
1788 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1789 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1791 emit_bge(cd, iptr->dst.block);
1795 case ICMD_LRETURN: /* ..., retvalue ==> ... */
1796 case ICMD_IRETURN: /* ..., retvalue ==> ... */
1798 REPLACEMENT_POINT_RETURN(cd, iptr);
1799 s1 = emit_load_s1(jd, iptr, REG_RESULT);
1800 M_LNGMOVE(s1, REG_RESULT);
1801 goto nowperformreturn;
1803 case ICMD_ARETURN: /* ..., retvalue ==> ... */
1805 REPLACEMENT_POINT_RETURN(cd, iptr);
1806 s1 = emit_load_s1(jd, iptr, REG_RESULT);
1807 M_LNGMOVE(s1, REG_RESULT);
1809 #ifdef ENABLE_VERIFIER
1810 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1811 patcher_add_patch_ref(jd, PATCHER_resolve_class,
1812 iptr->sx.s23.s2.uc, 0);
1814 #endif /* ENABLE_VERIFIER */
1816 goto nowperformreturn;
1818 case ICMD_FRETURN: /* ..., retvalue ==> ... */
1821 REPLACEMENT_POINT_RETURN(cd, iptr);
1822 s1 = emit_load_s1(jd, iptr, REG_FRESULT);
1823 M_FLTMOVE(s1, REG_FRESULT);
1824 goto nowperformreturn;
1826 case ICMD_RETURN: /* ... ==> ... */
1828 REPLACEMENT_POINT_RETURN(cd, iptr);
1834 p = cd->stackframesize;
1836 /* call trace function */
1838 #if !defined(NDEBUG)
1839 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
1840 emit_verbosecall_exit(jd);
1843 #if defined(ENABLE_THREADS)
1844 if (checksync && code_is_synchronized(code)) {
1845 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
1846 M_ALD(REG_ITMP3, REG_PV, disp);
1847 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1850 /* we need to save the proper return value */
1852 switch (iptr->opc) {
1857 M_LST(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
1860 M_FST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1863 M_DST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1867 M_ALD(REG_A0, REG_SP, rd->memuse * 8);
1870 /* and now restore the proper return value */
1872 switch (iptr->opc) {
1877 M_LLD(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
1880 M_FLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1883 M_DLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1889 /* restore return address */
1891 if (!code_is_leafmethod(code)) {
1892 /* ATTENTION: Don't use REG_ZERO (r0) here, as M_ALD
1893 may have a displacement overflow. */
1895 M_ALD(REG_ITMP1, REG_SP, p * 8 + LA_LR_OFFSET);
1899 /* restore saved registers */
1901 for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
1902 p--; M_LLD(rd->savintregs[i], REG_SP, p * 8);
1904 for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
1905 p--; M_DLD(rd->savfltregs[i], REG_SP, p * 8);
1908 /* deallocate stack */
1910 if (cd->stackframesize)
1911 M_LDA(REG_SP, REG_SP, cd->stackframesize * 8);
1919 case ICMD_TABLESWITCH: /* ..., index ==> ... */
1922 branch_target_t *table;
1924 table = iptr->dst.table;
1926 l = iptr->sx.s23.s2.tablelow;
1927 i = iptr->sx.s23.s3.tablehigh;
1929 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1931 M_INTMOVE(s1, REG_ITMP1);
1932 } else if (l <= 32768) {
1933 M_LDA(REG_ITMP1, s1, -l);
1935 ICONST(REG_ITMP2, l);
1936 M_SUB(s1, REG_ITMP2, REG_ITMP1);
1939 /* number of targets */
1944 M_CMPUI(REG_ITMP1, i - 1);
1945 emit_bgt(cd, table[0].block);
1947 /* build jump table top down and use address of lowest entry */
1952 dseg_add_target(cd, table->block);
1956 /* length of dataseg after last dseg_add_unique_target is used by load */
1958 M_SLL_IMM(REG_ITMP1, 3, REG_ITMP1);
1959 M_IADD(REG_ITMP1, REG_PV, REG_ITMP2);
1960 M_ALD(REG_ITMP2, REG_ITMP2, -(cd->dseglen));
1968 case ICMD_LOOKUPSWITCH: /* ..., key ==> ... */
1971 lookup_target_t *lookup;
1973 lookup = iptr->dst.lookup;
1975 i = iptr->sx.s23.s2.lookupcount;
1977 MCODECHECK((i<<3)+8);
1978 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1980 val = lookup->value;
1981 if ((val >= -32768) && (val <= 32767)) {
1985 a = dseg_add_s4(cd, val);
1986 M_ILD(REG_ITMP2, REG_PV, a);
1987 M_CMP(s1, REG_ITMP2);
1989 emit_beq(cd, lookup->target.block);
1993 emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2000 case ICMD_BUILTIN: /* ..., [arg1, [arg2 ...]] ==> ... */
2002 bte = iptr->sx.s23.s3.bte;
2006 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ... */
2007 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2008 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer */
2009 case ICMD_INVOKEINTERFACE:
2011 REPLACEMENT_POINT_INVOKE(cd, iptr);
2013 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2015 um = iptr->sx.s23.s3.um;
2016 md = um->methodref->parseddesc.md;
2019 lm = iptr->sx.s23.s3.fmiref->p.method;
2021 md = lm->parseddesc;
2025 s3 = md->paramcount;
2027 MCODECHECK((s3 << 2) + 128);
2029 /* copy arguments to registers or stack location */
2031 for (s3 = s3 - 1; s3 >= 0; s3--) {
2032 var = VAR(iptr->sx.s23.s2.args[s3]);
2033 d = md->params[s3].regoff;
2035 if (var->flags & PREALLOC)
2038 if (IS_INT_LNG_TYPE(var->type)) {
2039 if (!md->params[s3].inmemory) {
2040 s1 = emit_load(jd, iptr, var, d);
2044 s1 = emit_load(jd, iptr, var, REG_ITMP1);
2045 M_LST(s1, REG_SP, d);
2049 if (!md->params[s3].inmemory) {
2050 s1 = emit_load(jd, iptr, var, d);
2054 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2055 M_DST(s1, REG_SP, d);
2060 switch (iptr->opc) {
2062 if (bte->stub == NULL) {
2063 disp = dseg_add_functionptr(cd, bte->fp);
2064 M_ALD(REG_PV, REG_PV, disp);
2065 M_ALD(REG_PV, REG_PV, 0); /* TOC */
2068 disp = dseg_add_functionptr(cd, bte->stub);
2069 M_ALD(REG_PV, REG_PV, disp);
2072 /* generate the actual call */
2075 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2076 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2078 M_LDA(REG_PV, REG_ITMP1, -disp);
2081 case ICMD_INVOKESPECIAL:
2082 emit_nullpointer_check(cd, iptr, REG_A0);
2085 case ICMD_INVOKESTATIC:
2087 disp = dseg_add_unique_address(cd, um);
2089 patcher_add_patch_ref(jd, PATCHER_invokestatic_special,
2092 disp = dseg_add_address(cd, lm->stubroutine);
2094 M_ALD(REG_PV, REG_PV, disp);
2096 /* generate the actual call */
2100 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2101 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2103 M_LDA(REG_PV, REG_ITMP1, -disp);
2106 case ICMD_INVOKEVIRTUAL:
2108 patcher_add_patch_ref(jd, PATCHER_invokevirtual, um, 0);
2111 s1 = OFFSET(vftbl_t, table[0]) +
2112 sizeof(methodptr) * lm->vftblindex;
2115 /* implicit null-pointer check */
2116 M_ALD(REG_METHODPTR, REG_A0, OFFSET(java_object_t, vftbl));
2117 M_ALD(REG_PV, REG_METHODPTR, s1);
2119 /* generate the actual call */
2123 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2124 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2126 M_LDA(REG_PV, REG_ITMP1, -disp);
2129 case ICMD_INVOKEINTERFACE:
2131 patcher_add_patch_ref(jd, PATCHER_invokeinterface, um, 0);
2137 s1 = OFFSET(vftbl_t, interfacetable[0]) -
2138 sizeof(methodptr*) * lm->clazz->index;
2140 s2 = sizeof(methodptr) * (lm - lm->clazz->methods);
2143 /* implicit null-pointer check */
2144 M_ALD(REG_METHODPTR, REG_A0, OFFSET(java_object_t, vftbl));
2145 M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
2146 M_ALD(REG_PV, REG_METHODPTR, s2);
2148 /* generate the actual call */
2152 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2153 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2155 M_LDA(REG_PV, REG_ITMP1, -disp);
2159 /* store return value */
2161 d = md->returntype.type;
2163 if (d != TYPE_VOID) {
2164 if (IS_INT_LNG_TYPE(d)) {
2165 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2166 M_MOV(REG_RESULT, s1);
2169 s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
2170 M_FLTMOVE(REG_FRESULT, s1);
2172 emit_store_dst(jd, iptr, s1);
2176 case ICMD_CHECKCAST: /* ..., objectref ==> ..., objectref */
2177 /* val.a: (classinfo*) superclass */
2179 /* superclass is an interface:
2181 * OK if ((sub == NULL) ||
2182 * (sub->vftbl->interfacetablelength > super->index) &&
2183 * (sub->vftbl->interfacetable[-super->index] != NULL));
2185 * superclass is a class:
2187 * OK if ((sub == NULL) || (0
2188 * <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2189 * super->vftbl->diffvall));
2192 if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2193 /* object type cast-check */
2198 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2203 super = iptr->sx.s23.s3.c.cls;
2204 superindex = super->index;
2207 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2209 /* if class is not resolved, check which code to call */
2211 if (super == NULL) {
2213 emit_label_beq(cd, BRANCH_LABEL_1);
2214 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2216 patcher_add_patch_ref(jd,
2217 PATCHER_resolve_classref_to_flags,
2218 iptr->sx.s23.s3.c.ref,
2221 M_ILD(REG_ITMP2, REG_PV, disp);
2222 M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
2224 emit_label_beq(cd, BRANCH_LABEL_2);
2227 /* interface checkcast code */
2229 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2230 if (super == NULL) {
2231 patcher_add_patch_ref(jd,
2232 PATCHER_checkcast_interface,
2233 iptr->sx.s23.s3.c.ref,
2237 emit_label_beq(cd, BRANCH_LABEL_3);
2240 M_ALD(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2241 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2242 M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2243 emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2244 M_ALD(REG_ITMP3, REG_ITMP2,
2245 OFFSET(vftbl_t, interfacetable[0]) -
2246 superindex * sizeof(methodptr*));
2248 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2250 if (super == NULL) {
2251 emit_label_br(cd, BRANCH_LABEL_4);
2253 emit_label(cd, BRANCH_LABEL_3);
2257 /* class checkcast code */
2259 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2260 if (super == NULL) {
2261 emit_label(cd, BRANCH_LABEL_2);
2263 disp = dseg_add_unique_address(cd, NULL);
2264 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2265 iptr->sx.s23.s3.c.ref,
2268 disp = dseg_add_address(cd, super->vftbl);
2270 emit_label_beq(cd, BRANCH_LABEL_5);
2273 M_ALD(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2274 M_ALD(REG_ITMP3, REG_PV, disp);
2276 if (super == NULL || super->vftbl->subtype_depth >= DISPLAY_SIZE) {
2277 M_ILD(REG_ITMP1, REG_ITMP3, OFFSET(vftbl_t, subtype_offset));
2278 M_LADD(REG_ITMP1, REG_ITMP2, REG_ITMP1);
2279 M_ALD(REG_ITMP1, REG_ITMP1, 0);
2280 M_CMP(REG_ITMP1, REG_ITMP3);
2281 emit_label_beq(cd, BRANCH_LABEL_6); /* good */
2283 if (super == NULL) {
2284 M_ILD(REG_ITMP1, REG_ITMP3, OFFSET(vftbl_t, subtype_offset));
2285 M_CMPI(REG_ITMP1, OFFSET(vftbl_t, subtype_display[DISPLAY_SIZE]));
2286 emit_label_bne(cd, BRANCH_LABEL_10); /* throw */
2289 M_ILD(REG_ITMP1, REG_ITMP3, OFFSET(vftbl_t, subtype_depth));
2290 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, subtype_depth));
2291 M_CMP(REG_ITMP1, REG_ITMP3);
2292 emit_label_bgt(cd, BRANCH_LABEL_9); /* throw */
2294 M_ALD(REG_ITMP3, REG_PV, disp);
2295 M_ALD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, subtype_overflow));
2297 M_SLL_IMM(REG_ITMP1, 3, REG_ITMP1);
2298 M_IADD_IMM(REG_ITMP2, -DISPLAY_SIZE*8, REG_ITMP2);
2299 M_ALDX(REG_ITMP1, REG_ITMP2, REG_ITMP1);
2300 M_CMP(REG_ITMP1, REG_ITMP3);
2301 emit_label_beq(cd, BRANCH_LABEL_7); /* good */
2303 emit_label(cd, BRANCH_LABEL_9);
2305 emit_label(cd, BRANCH_LABEL_10);
2307 /* reload s1, might have been destroyed */
2308 emit_load_s1(jd, iptr, REG_ITMP1);
2309 M_LWZ(s1, REG_ZERO, TRAP_ClassCastException);
2311 emit_label(cd, BRANCH_LABEL_7);
2312 emit_label(cd, BRANCH_LABEL_6);
2313 /* reload s1, might have been destroyed */
2314 emit_load_s1(jd, iptr, REG_ITMP1);
2317 M_ALD(REG_ITMP2, REG_ITMP2, super->vftbl->subtype_offset);
2318 M_CMP(REG_ITMP2, REG_ITMP3);
2319 emit_classcast_check(cd, iptr, BRANCH_NE, REG_ITMP2, s1);
2323 emit_label(cd, BRANCH_LABEL_5);
2326 if (super == NULL) {
2327 emit_label(cd, BRANCH_LABEL_1);
2328 emit_label(cd, BRANCH_LABEL_4);
2330 d = codegen_reg_of_dst(jd, iptr, s1);
2333 /* array type cast-check */
2335 s1 = emit_load_s1(jd, iptr, REG_A0);
2336 M_INTMOVE(s1, REG_A0);
2339 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2340 disp = dseg_add_unique_address(cd, NULL);
2341 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2342 iptr->sx.s23.s3.c.ref,
2345 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2348 M_ALD(REG_A1, REG_PV, disp);
2349 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2350 M_ALD(REG_ITMP2, REG_PV, disp);
2351 M_ALD(REG_ITMP2, REG_ITMP2, 0); /* TOC */
2355 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2356 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2358 d = codegen_reg_of_dst(jd, iptr, s1);
2361 emit_store_dst(jd, iptr, d);
2365 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult */
2366 /* val.a: (classinfo*) superclass */
2368 /* superclass is an interface:
2370 * return (sub != NULL) &&
2371 * (sub->vftbl->interfacetablelength > super->index) &&
2372 * (sub->vftbl->interfacetable[-super->index] != NULL);
2374 * superclass is a class:
2376 * return ((sub != NULL) && (0
2377 * <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2378 * super->vftbl->diffvall));
2385 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2390 super = iptr->sx.s23.s3.c.cls;
2391 superindex = super->index;
2394 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2395 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2397 M_MOV(s1, REG_ITMP1);
2401 /* if class is not resolved, check which code to call */
2403 if (super == NULL) {
2406 emit_label_beq(cd, BRANCH_LABEL_1);
2407 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2409 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2410 iptr->sx.s23.s3.c.ref, disp);
2412 M_ILD(REG_ITMP3, REG_PV, disp);
2413 M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
2414 emit_label_beq(cd, BRANCH_LABEL_2);
2417 /* interface instanceof code */
2419 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2420 if (super == NULL) {
2421 /* If d == REG_ITMP2, then it's destroyed in check
2426 patcher_add_patch_ref(jd,
2427 PATCHER_instanceof_interface,
2428 iptr->sx.s23.s3.c.ref, 0);
2433 emit_label_beq(cd, BRANCH_LABEL_3);
2436 M_ALD(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2437 M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2438 M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2440 M_ALD(REG_ITMP1, REG_ITMP1,
2441 OFFSET(vftbl_t, interfacetable[0]) -
2442 superindex * sizeof(methodptr*));
2443 /* This seems to be the canonical sequence to emulate
2444 * the Alpha instruction M_CMPULT(zero,x) (check for non-null). */
2445 M_ADDIC(REG_ITMP1, -1, d);
2446 M_SUBE(REG_ITMP1, d, d);
2448 if (super == NULL) {
2449 emit_label_br(cd, BRANCH_LABEL_4);
2451 emit_label(cd, BRANCH_LABEL_3);
2455 /* class instanceof code */
2457 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2459 if (super == NULL) {
2460 emit_label(cd, BRANCH_LABEL_2);
2462 disp = dseg_add_unique_address(cd, NULL);
2463 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2464 iptr->sx.s23.s3.c.ref,
2468 disp = dseg_add_address(cd, super->vftbl);
2472 emit_label_beq(cd, BRANCH_LABEL_5);
2475 M_ALD(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2476 M_ALD(REG_ITMP3, REG_PV, disp);
2478 if (super == NULL || super->vftbl->subtype_depth >= DISPLAY_SIZE) {
2479 M_ILD(REG_ITMP1, REG_ITMP3, OFFSET(vftbl_t, subtype_offset));
2480 M_LADD(REG_ITMP1, REG_ITMP2, REG_ITMP1);
2481 M_ALD(REG_ITMP1, REG_ITMP1, 0);
2482 M_CMP(REG_ITMP1, REG_ITMP3);
2483 emit_label_bne(cd, BRANCH_LABEL_8);
2485 emit_label_br(cd, BRANCH_LABEL_6); /* true */
2486 emit_label(cd, BRANCH_LABEL_8);
2488 if (super == NULL) {
2489 M_ILD(REG_ITMP1, REG_ITMP3, OFFSET(vftbl_t, subtype_offset));
2490 M_CMPI(REG_ITMP1, OFFSET(vftbl_t, subtype_display[DISPLAY_SIZE]));
2491 emit_label_bne(cd, BRANCH_LABEL_10); /* false */
2494 M_ILD(REG_ITMP1, REG_ITMP3, OFFSET(vftbl_t, subtype_depth));
2496 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, subtype_depth));
2497 M_CMP(REG_ITMP1, REG_ITMP3);
2498 emit_label_bgt(cd, BRANCH_LABEL_9); /* false */
2500 M_ALD(REG_ITMP3, REG_PV, disp);
2501 M_ALD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, subtype_overflow));
2503 M_SLL_IMM(REG_ITMP1, 3, REG_ITMP1);
2504 M_IADD_IMM(REG_ITMP2, -DISPLAY_SIZE*8, REG_ITMP2);
2505 M_ALDX(REG_ITMP1, REG_ITMP2, REG_ITMP1);
2506 /* This seems to be the canonical sequence to emulate
2507 * the Alpha instruction M_CMPEQ. */
2508 M_XOR(REG_ITMP1, REG_ITMP3, d);
2510 M_RLDICL(d, 58, 6, d);
2513 emit_label_br(cd, BRANCH_LABEL_7);
2514 emit_label(cd, BRANCH_LABEL_9);
2516 emit_label(cd, BRANCH_LABEL_10);
2517 if (d == REG_ITMP2) {
2520 emit_label(cd, BRANCH_LABEL_7);
2522 emit_label(cd, BRANCH_LABEL_6);
2525 M_ALD(REG_ITMP2, REG_ITMP2, super->vftbl->subtype_offset);
2526 M_XOR(REG_ITMP2, REG_ITMP3, d);
2528 M_RLDICL(d, 58, 6, d);
2532 emit_label(cd, BRANCH_LABEL_5);
2535 if (super == NULL) {
2536 emit_label(cd, BRANCH_LABEL_1);
2537 emit_label(cd, BRANCH_LABEL_4);
2540 emit_store_dst(jd, iptr, d);
2544 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref */
2546 /* check for negative sizes and copy sizes to stack if necessary */
2548 MCODECHECK((iptr->s1.argcount << 2) + 128);
2550 for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2552 var = VAR(iptr->sx.s23.s2.args[s1]);
2554 /* copy SAVEDVAR sizes to stack */
2556 if (!(var->flags & PREALLOC)) {
2557 s2 = emit_load(jd, iptr, var, REG_ITMP1);
2558 #if defined(__DARWIN__)
2559 M_LST(s2, REG_SP, LA_SIZE + (s1 + INT_ARG_CNT) * 8);
2561 M_LST(s2, REG_SP, LA_SIZE + (s1 + 3) * 8);
2566 /* a0 = dimension count */
2568 ICONST(REG_A0, iptr->s1.argcount);
2570 /* is patcher function set? */
2572 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2573 disp = dseg_add_unique_address(cd, NULL);
2575 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2576 iptr->sx.s23.s3.c.ref, disp);
2578 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2581 /* a1 = arraydescriptor */
2583 M_ALD(REG_A1, REG_PV, disp);
2585 /* a2 = pointer to dimensions = stack pointer */
2587 #if defined(__DARWIN__)
2588 M_LDA(REG_A2, REG_SP, LA_SIZE + INT_ARG_CNT * 8);
2590 M_LDA(REG_A2, REG_SP, LA_SIZE + 3 * 8);
2593 disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2594 M_ALD(REG_ITMP3, REG_PV, disp);
2595 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2599 /* check for exception before result assignment */
2600 emit_exception_check(cd, iptr);
2602 d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2603 M_INTMOVE(REG_RESULT, d);
2604 emit_store_dst(jd, iptr, d);
2608 exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2613 } /* for instruction */
2615 } /* if (bptr -> flags >= BBREACHED) */
2616 } /* for basic block */
2618 /* generate traps */
2620 emit_patcher_traps(jd);
2622 /* everything's ok */
2628 /* codegen_emit_stub_native ****************************************************
2630 Emits a stub routine which calls a native method.
2632 *******************************************************************************/
2634 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f, int skipparams)
2645 /* get required compiler data */
2653 assert(!code_is_leafmethod(code));
2655 /* set some variables */
2659 /* calculate stackframe size */
2661 cd->stackframesize =
2662 sizeof(stackframeinfo_t) / SIZEOF_VOID_P +
2663 sizeof(localref_table) / SIZEOF_VOID_P +
2664 4 + /* 4 stackframeinfo arguments (darwin)*/
2668 /* cd->stackframesize = (cd->stackframesize + 3) & ~3;*/ /* keep stack 16-byte aligned */
2670 /* create method header */
2672 (void) dseg_add_unique_address(cd, code); /* CodeinfoPointer */
2673 (void) dseg_add_unique_s4(cd, cd->stackframesize * 8); /* FrameSize */
2674 (void) dseg_add_unique_s4(cd, 0); /* IsLeaf */
2675 (void) dseg_add_unique_s4(cd, 0); /* IntSave */
2676 (void) dseg_add_unique_s4(cd, 0); /* FltSave */
2681 M_AST_INTERN(REG_ZERO, REG_SP, LA_LR_OFFSET);
2682 M_STDU(REG_SP, REG_SP, -(cd->stackframesize * 8));
2684 /* save integer and float argument registers */
2686 for (i = 0; i < md->paramcount; i++) {
2687 if (!md->params[i].inmemory) {
2688 s1 = md->params[i].regoff;
2690 switch (md->paramtypes[i].type) {
2694 M_LST(s1, REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + i * 8);
2698 M_DST(s1, REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + i * 8);
2704 /* create native stack info */
2706 M_MOV(REG_SP, REG_A0);
2707 M_MOV(REG_PV, REG_A1);
2708 disp = dseg_add_functionptr(cd, codegen_start_native_call);
2709 M_ALD(REG_ITMP1, REG_PV, disp);
2710 M_ALD(REG_ITMP1, REG_ITMP1, 0); /* TOC */
2714 /* remember class argument */
2716 if (m->flags & ACC_STATIC)
2717 M_MOV(REG_RESULT, REG_ITMP3);
2719 /* restore integer and float argument registers */
2721 for (i = 0; i < md->paramcount; i++) {
2722 if (!md->params[i].inmemory) {
2723 s1 = md->params[i].regoff;
2725 switch (md->paramtypes[i].type) {
2729 M_LLD(s1, REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + i * 8);
2733 M_DLD(s1, REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + i * 8);
2739 /* copy or spill arguments to new locations */
2741 for (i = md->paramcount - 1, j = i + skipparams; i >= 0; i--, j--) {
2742 t = md->paramtypes[i].type;
2744 if (IS_INT_LNG_TYPE(t)) {
2745 if (!md->params[i].inmemory) {
2746 s1 = md->params[i].regoff;
2747 s2 = nmd->params[j].regoff;
2749 if (!nmd->params[j].inmemory)
2752 M_LST(s1, REG_SP, s2);
2755 s1 = md->params[i].regoff + cd->stackframesize * 8;
2756 s2 = nmd->params[j].regoff;
2758 M_LLD(REG_ITMP1, REG_SP, s1);
2759 M_LST(REG_ITMP1, REG_SP, s2);
2763 /* We only copy spilled float arguments, as the float
2764 argument registers keep unchanged. */
2766 if (md->params[i].inmemory) {
2767 s1 = md->params[i].regoff + cd->stackframesize * 8;
2768 s2 = nmd->params[j].regoff;
2770 M_DLD(REG_FTMP1, REG_SP, s1);
2772 if (IS_2_WORD_TYPE(t))
2773 M_DST(REG_FTMP1, REG_SP, s2);
2775 M_FST(REG_FTMP1, REG_SP, s2 + 4);
2780 /* Handle native Java methods. */
2782 if (m->flags & ACC_NATIVE) {
2783 /* put class into second argument register */
2785 if (m->flags & ACC_STATIC)
2786 M_MOV(REG_ITMP3, REG_A1);
2788 /* put env into first argument register */
2790 disp = dseg_add_unique_address(cd, VM_get_jnienv());
2791 M_ALD(REG_A0, REG_PV, disp);
2794 /* Call the native function. */
2795 /* native functions have a different TOC for sure */
2797 M_AST(REG_TOC, REG_SP, 40); /* save old TOC */
2798 disp = dseg_add_functionptr(cd, f);
2799 M_ALD(REG_ITMP3, REG_PV, disp);
2800 M_ALD(REG_TOC, REG_ITMP3, 8); /* load TOC from func. descriptor */
2801 M_ALD(REG_ITMP3, REG_ITMP3, 0);
2804 M_ALD(REG_TOC, REG_SP, 40); /* restore TOC */
2806 /* save return value */
2808 if (md->returntype.type != TYPE_VOID) {
2809 if (IS_INT_LNG_TYPE(md->returntype.type)) {
2810 M_LST(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 2 * 8);
2813 M_DST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 2 * 8);
2817 /* remove native stackframe info */
2819 M_MOV(REG_SP, REG_A0);
2820 M_MOV(REG_PV, REG_A1);
2821 disp = dseg_add_functionptr(cd, codegen_finish_native_call);
2822 M_ALD(REG_ITMP1, REG_PV, disp);
2823 M_ALD(REG_ITMP1, REG_ITMP1, 0); /* XXX what about TOC? */
2826 M_MOV(REG_RESULT, REG_ITMP1_XPTR);
2828 /* restore return value */
2830 if (md->returntype.type != TYPE_VOID) {
2831 if (IS_INT_LNG_TYPE(md->returntype.type)) {
2832 M_LLD(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 2 * 8);
2835 M_DLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 2 * 8);
2839 M_ALD(REG_ITMP2_XPC, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2840 M_MTLR(REG_ITMP2_XPC);
2841 M_LDA(REG_SP, REG_SP, cd->stackframesize * 8); /* remove stackframe */
2843 /* check for exception */
2845 M_TST(REG_ITMP1_XPTR);
2846 M_BNE(1); /* if no exception then return */
2850 /* handle exception */
2852 M_LADD_IMM(REG_ITMP2_XPC, -4, REG_ITMP2_XPC); /* exception address */
2854 disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
2855 M_ALD(REG_ITMP3, REG_PV, disp);
2862 * These are local overrides for various environment variables in Emacs.
2863 * Please do not remove this and leave it at the end of the file, where
2864 * Emacs will automagically detect them.
2865 * ---------------------------------------------------------------------
2868 * indent-tabs-mode: t
2872 * vim:noexpandtab:sw=4:ts=4: