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Update spec file to 4.5 profile
[mono-project.git] / mono / mini / mini-hppa.c
blob4656c189499b2eb27ff7968d98155d9df079939a
1 /*
2 * mini-hppa.c: HPPA backend for the Mono code generator
3 *
4 * Copyright (c) 2007 Randolph Chung
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 *
24 */
25 #include "mini.h"
26 #include <string.h>
27 #include <pthread.h>
28 #include <unistd.h>
29
30 #include <unistd.h>
31 #include <sys/mman.h>
32
33 #include <mono/metadata/appdomain.h>
34 #include <mono/metadata/debug-helpers.h>
35 #include <mono/metadata/tokentype.h>
36 #include <mono/utils/mono-math.h>
37
38 #include "mini-hppa.h"
39 #include "trace.h"
40 #include "cpu-hppa.h"
41
42 #define ALIGN_TO(val,align) (((val) + ((align) - 1)) & ~((align) - 1))
43 #define SIGNAL_STACK_SIZE (64 * 1024)
44
45 #define DEBUG(a) // a
46 #define DEBUG_FUNC_ENTER() // printf("Entering %s\n", __FUNCTION__)
47 #define DEBUG_FUNC_EXIT() // printf("Exiting %s\n", __FUNCTION__)
48
49 static const guchar
50 branch_b0_table [] = {
51 TRUE, /* OP_HPPA_BEQ */
52 FALSE, /* OP_HPPA_BGE */
53 FALSE, /* OP_HPPA_BGT */
54 TRUE, /* OP_HPPA_BLE */
55 TRUE, /* OP_HPPA_BLT */
56 FALSE, /* OP_HPPA_BNE */
57 FALSE, /* OP_HPPA_BGE_UN */
58 FALSE, /* OP_HPPA_BGT_UN */
59 TRUE, /* OP_HPPA_BLE_UN */
60 TRUE, /* OP_HPPA_BLT_UN */
61 };
62
63 static const guchar
64 branch_b1_table [] = {
65 HPPA_CMP_COND_EQ, /* OP_HPPA_BEQ */
66 HPPA_CMP_COND_SLT, /* OP_HPPA_BGE */
67 HPPA_CMP_COND_SLE, /* OP_HPPA_BGT */
68 HPPA_CMP_COND_SLE, /* OP_HPPA_BLE */
69 HPPA_CMP_COND_SLT, /* OP_HPPA_BLT */
70 HPPA_CMP_COND_EQ, /* OP_HPPA_BNE_UN */
71 HPPA_CMP_COND_ULT, /* OP_HPPA_BGE_UN */
72 HPPA_CMP_COND_ULE, /* OP_HPPA_BGT_UN */
73 HPPA_CMP_COND_ULE, /* OP_HPPA_BLE_UN */
74 HPPA_CMP_COND_ULT, /* OP_HPPA_BLT_UN */
75 };
76
77 /* Note that these are inverted from the OP_xxx, because we nullify
78 * the branch if the condition is met
79 */
80 static const guchar
81 float_branch_table [] = {
82 26, /* OP_FBEQ */
83 11, /* OP_FBGE */
84 15, /* OP_FBGT */
85 19, /* OP_FBLE */
86 23, /* OP_FBLT */
87 4, /* OP_FBNE_UN */
88 8, /* OP_FBGE_UN */
89 13, /* OP_FBGT_UN */
90 17, /* OP_FBLE_UN */
91 20, /* OP_FBLT_UN */
92 };
93
94 static const guchar
95 float_ceq_table [] = {
96 26, /* OP_FCEQ */
97 15, /* OP_FCGT */
98 13, /* OP_FCGT_UN */
99 23, /* OP_FCLT */
100 21, /* OP_FCLT_UN */
101 };
102
103 /*
104 * Branches have short (14 or 17 bit) targets on HPPA. To make longer jumps,
105 * we will need to rely on stubs - basically we create stub structures in
106 * the epilogue that uses a long branch to the destination, and any short
107 * jumps inside a method that cannot reach the destination directly will
108 * branch first to the stub.
109 */
110 typedef struct MonoOvfJump {
111 union {
112 MonoBasicBlock *bb;
113 const char *exception;
114 } data;
115 guint32 ip_offset;
116 } MonoOvfJump;
117
118 /* Create a literal 0.0 double for FNEG */
119 double hppa_zero = 0;
120
121 const char*
122 mono_arch_regname (int reg)
123 {
124 static const char * rnames[] = {
125 "hppa_r0", "hppa_r1", "hppa_rp", "hppa_r3", "hppa_r4",
126 "hppa_r5", "hppa_r6", "hppa_r7", "hppa_r8", "hppa_r9",
127 "hppa_r10", "hppa_r11", "hppa_r12", "hppa_r13", "hppa_r14",
128 "hppa_r15", "hppa_r16", "hppa_r17", "hppa_r18", "hppa_r19",
129 "hppa_r20", "hppa_r21", "hppa_r22", "hppa_r23", "hppa_r24",
130 "hppa_r25", "hppa_r26", "hppa_r27", "hppa_r28", "hppa_r29",
131 "hppa_sp", "hppa_r31"
132 };
133 if (reg >= 0 && reg < MONO_MAX_IREGS)
134 return rnames [reg];
135 return "unknown";
136 }
137
138 const char*
139 mono_arch_fregname (int reg)
140 {
141 static const char *rnames [] = {
142 "hppa_fr0", "hppa_fr1", "hppa_fr2", "hppa_fr3", "hppa_fr4",
143 "hppa_fr5", "hppa_fr6", "hppa_fr7", "hppa_fr8", "hppa_fr9",
144 "hppa_fr10", "hppa_fr11", "hppa_fr12", "hppa_fr13", "hppa_fr14",
145 "hppa_fr15", "hppa_fr16", "hppa_fr17", "hppa_fr18", "hppa_fr19",
146 "hppa_fr20", "hppa_fr21", "hppa_fr22", "hppa_fr23", "hppa_fr24",
147 "hppa_fr25", "hppa_fr26", "hppa_fr27", "hppa_fr28", "hppa_fr29",
148 "hppa_fr30", "hppa_fr31",
149 };
150
151 if (reg >= 0 && reg < MONO_MAX_FREGS)
152 return rnames [reg];
153 else
154 return "unknown";
155 }
156
157 /*
158 * Initialize the cpu to execute managed code.
159 */
160 void
161 mono_arch_cpu_init (void)
162 {
163 guint32 dummy;
164 mono_arch_cpu_optimizazions(&dummy);
165 }
166
167 /*
168 * Initialize architecture specific code.
169 */
170 void
171 mono_arch_init (void)
172 {
173 }
174
175 /*
176 * Cleanup architecture specific code.
177 */
178 void
179 mono_arch_cleanup (void)
180 {
181 }
182
183 /*
184 * This function returns the optimizations supported on this cpu.
185 */
186 guint32
187 mono_arch_cpu_optimizazions (guint32 *exclude_mask)
188 {
189 guint32 opts = 0;
190 *exclude_mask = 0;
191 return opts;
192 }
193
194 void
195 mono_arch_flush_icache (guint8 *code, gint size)
196 {
197 guint8* p = (guint8*)((guint32)code & ~(0x3f));
198 guint8* end = (guint8*)((guint32)code + size);
199 while (p < end) {
200 __asm__ __volatile__ ("fdc %%r0(%%sr3, %0)\n"
201 "sync\n"
202 "fic %%r0(%%sr3, %0)\n"
203 "sync\n"
204 : : "r"(p));
205 p += 32; /* can be 64 on pa20 cpus */
206 }
207 }
208
209 void
210 mono_arch_flush_register_windows (void)
211 {
212 /* No register windows on hppa */
213 }
214
215 typedef enum {
216 ArgInIReg,
217 ArgInIRegPair,
218 ArgInFReg,
219 ArgInDReg,
220 ArgOnStack,
221 } ArgStorage;
222
223 typedef struct {
224 gint16 offset;
225 gint16 size;
226 guint8 type;
227 gint8 reg;
228 ArgStorage storage;
229 } ArgInfo;
230
231 typedef struct {
232 int nargs;
233 guint32 stack_usage;
234 int struct_return;
235 ArgInfo ret;
236 ArgInfo sig_cookie;
237 ArgInfo args [1];
238 } CallInfo;
239
240 #define PARAM_REGS 4
241 #define ARGS_OFFSET 36
242
243 static void
244 add_parameter (CallInfo *cinfo, ArgInfo *ainfo, MonoType *type)
245 {
246 int is_fp = (type->type == MONO_TYPE_R4 || type->type == MONO_TYPE_R8);
247 int ofs, align;
248
249 DEBUG_FUNC_ENTER ();
250 ainfo->reg = -1;
251 ainfo->size = mono_type_size (type, &align);
252 ainfo->type = type->type;
253
254 if (ainfo->size <= 4) {
255 cinfo->stack_usage += 4;
256 ainfo->offset = cinfo->stack_usage - (4 - ainfo->size);
257 }
258 else if (ainfo->size <= 8)
259 {
260 cinfo->stack_usage += 8;
261 cinfo->stack_usage = ALIGN_TO (cinfo->stack_usage, 8);
262 ainfo->offset = cinfo->stack_usage - (8 - ainfo->size);
263 }
264 else
265 {
266 cinfo->stack_usage += ainfo->size;
267 cinfo->stack_usage = ALIGN_TO (cinfo->stack_usage, align);
268 ainfo->offset = cinfo->stack_usage;
269 }
270
271 ofs = (ALIGN_TO (ainfo->offset, 4) - ARGS_OFFSET) / 4;
272 if (ofs < PARAM_REGS) {
273 if (!is_fp) {
274 if (ainfo->size <= 4)
275 ainfo->storage = ArgInIReg;
276 else
277 ainfo->storage = ArgInIRegPair;
278 ainfo->reg = hppa_r26 - ofs;
279 } else if (type->type == MONO_TYPE_R4) {
280 ainfo->storage = ArgInFReg;
281 ainfo->reg = hppa_fr4 + ofs;
282 } else { /* type->type == MONO_TYPE_R8 */
283 ainfo->storage = ArgInDReg;
284 ainfo->reg = hppa_fr4 + ofs;
285 }
286 }
287 else {
288 /* frame pointer based offset */
289 ainfo->reg = hppa_r3;
290 ainfo->storage = ArgOnStack;
291 }
292
293 /* All offsets are negative relative to the frame pointer */
294 ainfo->offset = -ainfo->offset;
295
296 DEBUG_FUNC_EXIT ();
297 }
298
299 static void
300 analyze_return (CallInfo *cinfo, MonoMethodSignature *sig)
301 {
302 MonoType *type;
303 int align;
304 int size;
305
306 type = sig->ret;
307 size = mono_type_size (type, &align);
308
309 /* ref: mono_type_to_stind */
310 cinfo->ret.type = type->type;
311 if (type->byref) {
312 cinfo->ret.storage = ArgInIReg;
313 cinfo->ret.reg = hppa_r28;
314 } else {
315 handle_enum:
316 switch (type->type) {
317 case MONO_TYPE_VOID:
318 break;
319 case MONO_TYPE_BOOLEAN:
320 case MONO_TYPE_I1:
321 case MONO_TYPE_U1:
322 case MONO_TYPE_I2:
323 case MONO_TYPE_U2:
324 case MONO_TYPE_CHAR:
325 case MONO_TYPE_I4:
326 case MONO_TYPE_U4:
327 case MONO_TYPE_I:
328 case MONO_TYPE_U:
329 case MONO_TYPE_PTR:
330 case MONO_TYPE_FNPTR:
331 case MONO_TYPE_CLASS:
332 case MONO_TYPE_STRING:
333 case MONO_TYPE_OBJECT:
334 case MONO_TYPE_SZARRAY:
335 case MONO_TYPE_ARRAY:
336 cinfo->ret.storage = ArgInIReg;
337 cinfo->ret.reg = hppa_r28;
338 break;
339 case MONO_TYPE_U8:
340 case MONO_TYPE_I8:
341 cinfo->ret.storage = ArgInIRegPair;
342 cinfo->ret.reg = hppa_r28;
343 break;
344 case MONO_TYPE_R4:
345 cinfo->ret.storage = ArgInFReg;
346 cinfo->ret.reg = hppa_fr4;
347 break;
348 case MONO_TYPE_R8:
349 cinfo->ret.storage = ArgInDReg;
350 cinfo->ret.reg = hppa_fr4;
351 break;
352 case MONO_TYPE_GENERICINST:
353 type = &type->data.generic_class->container_class->byval_arg;
354 goto handle_enum;
355
356 case MONO_TYPE_VALUETYPE:
357 if (type->data.klass->enumtype) {
358 type = mono_class_enum_basetype (type->data.klass);
359 goto handle_enum;
360 }
361 /* Fall through */
362 case MONO_TYPE_TYPEDBYREF:
363 cinfo->struct_return = 1;
364 /* cinfo->ret.storage tells us how the ABI expects
365 * the parameter to be returned
366 */
367 if (size <= 4) {
368 cinfo->ret.storage = ArgInIReg;
369 cinfo->ret.reg = hppa_r28;
370 } else if (size <= 8) {
371 cinfo->ret.storage = ArgInIRegPair;
372 cinfo->ret.reg = hppa_r28;
373 } else {
374 cinfo->ret.storage = ArgOnStack;
375 cinfo->ret.reg = hppa_sp;
376 }
377
378 /* We always allocate stack space for this because the
379 * arch-indep code expects us to
380 */
381 cinfo->stack_usage += size;
382 cinfo->stack_usage = ALIGN_TO (cinfo->stack_usage, align);
383 cinfo->ret.offset = -cinfo->stack_usage;
384 break;
385
386 default:
387 g_error ("Can't handle as return value 0x%x", sig->ret->type);
388 }
389 }
390 }
391
392 /*
393 * get_call_info:
394 *
395 * Obtain information about a call according to the calling convention.
396 */
397 static CallInfo*
398 get_call_info (MonoMethodSignature *sig, gboolean is_pinvoke)
399 {
400 guint32 i;
401 int n = sig->hasthis + sig->param_count;
402 CallInfo *cinfo;
403 MonoType *type;
404 MonoType ptrtype;
405 int dummy;
406
407 ptrtype.type = MONO_TYPE_PTR;
408
409 DEBUG_FUNC_ENTER();
410 cinfo = g_malloc0 (sizeof (CallInfo) + (sizeof (ArgInfo) * n));
411
412 /* The area below ARGS_OFFSET is the linkage area... */
413 cinfo->stack_usage = ARGS_OFFSET - 4;
414 /* -4, because the first argument will allocate the area it needs */
415
416 /* this */
417 if (sig->hasthis) {
418 add_parameter (cinfo, cinfo->args + 0, &ptrtype);
419 DEBUG (printf ("param <this>: assigned to reg %s offset %d\n", mono_arch_regname (cinfo->args[0].reg), cinfo->args[0].offset));
420 }
421
422 /* TODO: What to do with varargs? */
423
424 for (i = 0; i < sig->param_count; ++i) {
425 ArgInfo *ainfo = &cinfo->args [sig->hasthis + i];
426 if (sig->params [i]->byref)
427 type = &ptrtype;
428 else
429 type = mono_type_get_underlying_type (sig->params [i]);
430 add_parameter (cinfo, ainfo, type);
431
432 DEBUG (printf ("param %d: type %d size %d assigned to reg %s offset %d\n", i, type->type, mono_type_size (type, &dummy), mono_arch_regname (ainfo->reg), ainfo->offset));
433 }
434
435 analyze_return (cinfo, sig);
436
437 DEBUG_FUNC_EXIT();
438 return cinfo;
439 }
440
441 GList *
442 mono_arch_get_allocatable_int_vars (MonoCompile *cfg)
443 {
444 GList *vars = NULL;
445 int i;
446
447 DEBUG_FUNC_ENTER();
448 for (i = 0; i < cfg->num_varinfo; i++) {
449 MonoInst *ins = cfg->varinfo [i];
450 MonoMethodVar *vmv = MONO_VARINFO (cfg, i);
451
452 /* unused vars */
453 if (vmv->range.first_use.abs_pos >= vmv->range.last_use.abs_pos)
454 continue;
455
456 if ((ins->flags & (MONO_INST_IS_DEAD|MONO_INST_VOLATILE|MONO_INST_INDIRECT)) ||
457 (ins->opcode != OP_LOCAL && ins->opcode != OP_ARG))
458 continue;
459
460 if (mono_is_regsize_var (ins->inst_vtype)) {
461 g_assert (MONO_VARINFO (cfg, i)->reg == -1);
462 g_assert (i == vmv->idx);
463 vars = mono_varlist_insert_sorted (cfg, vars, vmv, FALSE);
464 }
465 }
466 DEBUG_FUNC_EXIT();
467
468 return vars;
469 }
470
471 GList *
472 mono_arch_get_global_int_regs (MonoCompile *cfg)
473 {
474 GList *regs = NULL;
475 int i;
476
477 /* r3 is sometimes used as our frame pointer, so don't allocate it
478 * r19 is the GOT pointer, don't allocate it either
479 */
480
481 DEBUG_FUNC_ENTER();
482 for (i = 4; i <= 18; i++)
483 regs = g_list_prepend (regs, GUINT_TO_POINTER (i));
484 DEBUG_FUNC_EXIT();
485
486 return regs;
487 }
488
489 /*
490 * mono_arch_regalloc_cost:
491 *
492 * Return the cost, in number of memory references, of the action of
493 * allocating the variable VMV into a register during global register
494 * allocation.
495 */
496 guint32
497 mono_arch_regalloc_cost (MonoCompile *cfg, MonoMethodVar *vmv)
498 {
499 /* FIXME */
500 return 0;
501 }
502
503 /*
504 * Set var information according to the calling convention.
505 * The locals var stuff should most likely be split in another method.
506 *
507 * updates m->stack_offset based on the amount of stack space needed for
508 * local vars
509 */
510 void
511 mono_arch_allocate_vars (MonoCompile *m)
512 {
513 MonoMethodSignature *sig;
514 MonoMethodHeader *header;
515 MonoInst *inst;
516 int i, offset, size, align, curinst;
517 guint32 stack_ptr;
518 guint rettype;
519 CallInfo *cinfo;
520
521 DEBUG_FUNC_ENTER();
522 m->flags |= MONO_CFG_HAS_SPILLUP;
523
524 header = m->header;
525
526 sig = mono_method_signature (m->method);
527 DEBUG (printf ("Allocating locals - incoming params:\n"));
528 cinfo = get_call_info (sig, FALSE);
529
530 /*
531 * We use the ABI calling conventions for managed code as well.
532 */
533 if (m->flags & MONO_CFG_HAS_ALLOCA) {
534 stack_ptr = hppa_r4;
535 m->used_int_regs |= 1 << hppa_r4;
536 } else {
537 stack_ptr = hppa_sp;
538 }
539
540 /* Before this function is called, we would have looked at all
541 * calls from this method and figured out how much space is needed
542 * for the param area.
543 *
544 * Locals are allocated backwards, right before the param area
545 */
546 /* TODO: in some cases we don't need the frame pointer... */
547 m->frame_reg = hppa_r3;
548 offset = m->param_area;
549
550 /* Return values can be passed back either in four ways:
551 * r28 is used for data <= 4 bytes (32-bit ABI)
552 * r28/r29 are used for data >4 && <= 8 bytes
553 * fr4 is used for floating point data
554 * data larger than 8 bytes is returned on the stack pointed to
555 * by r28
556 *
557 * This code needs to be in sync with how CEE_RET is handled
558 * in mono_method_to_ir (). In some cases when we return small
559 * structs, the ABI specifies that they should be returned in
560 * registers, but the code in mono_method_to_ir () always emits
561 * a memcpy for valuetype returns, so we need to make sure we
562 * allocate space on the stack for this copy.
563 */
564 if (cinfo->struct_return) {
565 /* this is used to stash the incoming r28 pointer */
566 offset += sizeof (gpointer);
567 m->ret->opcode = OP_REGOFFSET;
568 m->ret->inst_basereg = stack_ptr;
569 m->ret->inst_offset = -offset;
570 } else if (sig->ret->type != MONO_TYPE_VOID) {
571 m->ret->opcode = OP_REGVAR;
572 m->ret->inst_c0 = cinfo->ret.reg;
573 }
574
575 curinst = m->locals_start;
576 for (i = curinst; i < m->num_varinfo; ++i) {
577 inst = m->varinfo [i];
578
579 if (inst->opcode == OP_REGVAR) {
580 DEBUG (printf ("allocating local %d to %s\n", i, mono_arch_regname (inst->dreg)));
581 continue;
582 }
583
584 if (inst->flags & MONO_INST_IS_DEAD)
585 continue;
586
587 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
588 * pinvoke wrappers when they call functions returning structure */
589 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (inst->inst_vtype) && inst->inst_vtype->type != MONO_TYPE_TYPEDBYREF)
590 size = mono_class_native_size (inst->inst_vtype->data.klass, &align);
591 else
592 size = mini_type_stack_size (cfg->generic_sharing_context, inst->inst_vtype, &align);
593
594 /*
595 * This is needed since structures containing doubles must be doubleword
596 * aligned.
597 * FIXME: Do this only if needed.
598 */
599 if (MONO_TYPE_ISSTRUCT (inst->inst_vtype))
600 align = 8;
601
602 /*
603 * variables are accessed as negative offsets from hppa_sp
604 */
605 inst->opcode = OP_REGOFFSET;
606 inst->inst_basereg = stack_ptr;
607 offset += size;
608 offset = ALIGN_TO (offset, align);
609 inst->inst_offset = -offset;
610
611 DEBUG (printf ("allocating local %d (size = %d) to [%s - %d]\n", i, size, mono_arch_regname (inst->inst_basereg), -inst->inst_offset));
612 }
613
614 if (sig->call_convention == MONO_CALL_VARARG) {
615 /* TODO */
616 }
617
618 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
619 ArgInfo *ainfo = &cinfo->args [i];
620 inst = m->args [i];
621 if (inst->opcode != OP_REGVAR) {
622 switch (ainfo->storage) {
623 case ArgInIReg:
624 case ArgInIRegPair:
625 case ArgInFReg:
626 case ArgInDReg:
627 /* Currently mono requests all incoming registers
628 * be assigned to a stack location :-(
629 */
630 #if 0
631 if (!(inst->flags & (MONO_INST_VOLATILE | MONO_INST_INDIRECT))) {
632 inst->opcode = OP_REGVAR;
633 inst->dreg = ainfo->reg;
634 DEBUG (printf ("param %d in register %s\n", i, mono_arch_regname (inst->dreg)));
635 break;
636 }
637 #endif
638 /* fallthrough */
639 case ArgOnStack:
640 inst->opcode = OP_REGOFFSET;
641 inst->inst_basereg = hppa_r3;
642 inst->inst_offset = ainfo->offset;
643 DEBUG (printf ("param %d stored on stack [%s - %d]\n", i, mono_arch_regname (hppa_r3), -inst->inst_offset));
644 break;
645 }
646 }
647 }
648
649 m->stack_offset = offset; /* Includes cfg->param_area */
650
651 g_free (cinfo);
652 DEBUG_FUNC_EXIT();
653 }
654
655 /*
656 * take the arguments and generate the arch-specific
657 * instructions to properly call the function in call.
658 * This includes pushing, moving arguments to the right register
659 * etc.
660 *
661 * sets call->stack_usage and cfg->param_area
662 */
663 MonoCallInst*
664 mono_arch_call_opcode (MonoCompile *cfg, MonoBasicBlock* bb, MonoCallInst *call, int is_virtual)
665 {
666 MonoInst *arg, *in;
667 MonoMethodSignature *sig;
668 int i, n;
669 CallInfo *cinfo;
670 ArgInfo *ainfo;
671
672 DEBUG_FUNC_ENTER();
673 DEBUG (printf ("is_virtual = %d\n", is_virtual));
674
675 sig = call->signature;
676 n = sig->param_count + sig->hasthis;
677
678 DEBUG (printf ("Calling method with %d parameters\n", n));
679
680 cinfo = get_call_info (sig, sig->pinvoke);
681
682 // DEBUG
683 g_assert (sig->call_convention != MONO_CALL_VARARG);
684
685 for (i = 0; i < n; ++i) {
686 ainfo = &cinfo->args [i];
687
688 if ((sig->call_convention == MONO_CALL_VARARG) && (i == sig->sentinelpos)) {
689 /* TODO */
690 }
691
692 if (is_virtual && i == 0) {
693 /* the argument will be attached to the call instruction */
694 in = call->args [i];
695 call->used_iregs |= 1 << ainfo->reg;
696 } else {
697 MONO_INST_NEW (cfg, arg, OP_OUTARG);
698 in = call->args [i];
699 arg->cil_code = in->cil_code;
700 arg->inst_left = in;
701 arg->inst_call = call;
702 arg->type = in->type;
703
704 /* prepend, we'll need to reverse them later */
705 arg->next = call->out_args;
706 call->out_args = arg;
707
708 switch (ainfo->storage) {
709 case ArgInIReg:
710 case ArgInIRegPair: {
711 MonoHPPAArgInfo *ai = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoHPPAArgInfo));
712 ai->reg = ainfo->reg;
713 ai->size = ainfo->size;
714 ai->offset = ainfo->offset;
715 ai->pass_in_reg = 1;
716 arg->backend.data = ai;
717
718 call->used_iregs |= 1 << ainfo->reg;
719 if (ainfo->storage == ArgInIRegPair)
720 call->used_iregs |= 1 << (ainfo->reg + 1);
721 if (ainfo->type == MONO_TYPE_VALUETYPE)
722 arg->opcode = OP_OUTARG_VT;
723 break;
724 }
725 case ArgOnStack: {
726 MonoHPPAArgInfo *ai = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoHPPAArgInfo));
727 ai->reg = hppa_sp;
728 ai->size = ainfo->size;
729 ai->offset = ainfo->offset;
730 ai->pass_in_reg = 0;
731 arg->backend.data = ai;
732 if (ainfo->type == MONO_TYPE_VALUETYPE)
733 arg->opcode = OP_OUTARG_VT;
734 else
735 arg->opcode = OP_OUTARG_MEMBASE;
736 call->used_iregs |= 1 << ainfo->reg;
737 break;
738 }
739 case ArgInFReg:
740 arg->backend.reg3 = ainfo->reg;
741 arg->opcode = OP_OUTARG_R4;
742 call->used_fregs |= 1 << ainfo->reg;
743 break;
744 case ArgInDReg:
745 arg->backend.reg3 = ainfo->reg;
746 arg->opcode = OP_OUTARG_R8;
747 call->used_fregs |= 1 << ainfo->reg;
748 break;
749 default:
750 NOT_IMPLEMENTED;
751 }
752 }
753 }
754
755 /*
756 * Reverse the call->out_args list.
757 */
758 {
759 MonoInst *prev = NULL, *list = call->out_args, *next;
760 while (list) {
761 next = list->next;
762 list->next = prev;
763 prev = list;
764 list = next;
765 }
766 call->out_args = prev;
767 }
768 call->stack_usage = cinfo->stack_usage;
769 cfg->param_area = MAX (cfg->param_area, call->stack_usage);
770 cfg->param_area = ALIGN_TO (cfg->param_area, MONO_ARCH_FRAME_ALIGNMENT);
771
772 cfg->flags |= MONO_CFG_HAS_CALLS;
773
774 g_free (cinfo);
775
776 DEBUG_FUNC_EXIT();
777 return call;
778 }
779
780 void
781 mono_arch_peephole_pass_1 (MonoCompile *cfg, MonoBasicBlock *bb)
782 {
783 }
784
785 void
786 mono_arch_peephole_pass_2 (MonoCompile *cfg, MonoBasicBlock *bb)
787 {
788 DEBUG_FUNC_ENTER();
789 DEBUG_FUNC_EXIT();
790 }
791
792 static void
793 insert_after_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *to_insert)
794 {
795 if (ins == NULL) {
796 ins = bb->code;
797 bb->code = to_insert;
798 to_insert->next = ins;
799 } else {
800 to_insert->next = ins->next;
801 ins->next = to_insert;
802 }
803 }
804
805 #define NEW_INS(cfg,dest,op) do { \
806 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst)); \
807 (dest)->opcode = (op); \
808 insert_after_ins (bb, last_ins, (dest)); \
809 } while (0)
810
811 static int
812 map_to_reg_reg_op (int op)
813 {
814 switch (op) {
815 case OP_ADD_IMM:
816 return CEE_ADD;
817 case OP_SUB_IMM:
818 return CEE_SUB;
819 case OP_AND_IMM:
820 return CEE_AND;
821 case OP_COMPARE_IMM:
822 return OP_COMPARE;
823 case OP_ADDCC_IMM:
824 return OP_ADDCC;
825 case OP_ADC_IMM:
826 return OP_ADC;
827 case OP_SUBCC_IMM:
828 return OP_SUBCC;
829 case OP_SBB_IMM:
830 return OP_SBB;
831 case OP_OR_IMM:
832 return CEE_OR;
833 case OP_XOR_IMM:
834 return CEE_XOR;
835 case OP_MUL_IMM:
836 return CEE_MUL;
837 case OP_LOAD_MEMBASE:
838 return OP_LOAD_MEMINDEX;
839 case OP_LOADI4_MEMBASE:
840 return OP_LOADI4_MEMINDEX;
841 case OP_LOADU4_MEMBASE:
842 return OP_LOADU4_MEMINDEX;
843 case OP_LOADU1_MEMBASE:
844 return OP_LOADU1_MEMINDEX;
845 case OP_LOADI2_MEMBASE:
846 return OP_LOADI2_MEMINDEX;
847 case OP_LOADU2_MEMBASE:
848 return OP_LOADU2_MEMINDEX;
849 case OP_LOADI1_MEMBASE:
850 return OP_LOADI1_MEMINDEX;
851 case OP_LOADR4_MEMBASE:
852 return OP_LOADR4_MEMINDEX;
853 case OP_LOADR8_MEMBASE:
854 return OP_LOADR8_MEMINDEX;
855 case OP_STOREI1_MEMBASE_REG:
856 return OP_STOREI1_MEMINDEX;
857 case OP_STOREI2_MEMBASE_REG:
858 return OP_STOREI2_MEMINDEX;
859 case OP_STOREI4_MEMBASE_REG:
860 return OP_STOREI4_MEMINDEX;
861 case OP_STORE_MEMBASE_REG:
862 return OP_STORE_MEMINDEX;
863 case OP_STORER4_MEMBASE_REG:
864 return OP_STORER4_MEMINDEX;
865 case OP_STORER8_MEMBASE_REG:
866 return OP_STORER8_MEMINDEX;
867 case OP_STORE_MEMBASE_IMM:
868 return OP_STORE_MEMBASE_REG;
869 case OP_STOREI1_MEMBASE_IMM:
870 return OP_STOREI1_MEMBASE_REG;
871 case OP_STOREI2_MEMBASE_IMM:
872 return OP_STOREI2_MEMBASE_REG;
873 case OP_STOREI4_MEMBASE_IMM:
874 return OP_STOREI4_MEMBASE_REG;
875 }
876 g_assert_not_reached ();
877 }
878
879 /*
880 * Remove from the instruction list the instructions that can't be
881 * represented with very simple instructions with no register
882 * requirements.
883 */
884 void
885 mono_arch_lowering_pass (MonoCompile *cfg, MonoBasicBlock *bb)
886 {
887 MonoInst *ins, *next, *temp, *last_ins = NULL;
888 int imm;
889
890 MONO_BB_FOR_EACH_INS (bb, ins) {
891 loop_start:
892 switch (ins->opcode) {
893 case OP_ADD_IMM:
894 case OP_ADDCC_IMM:
895 if (!hppa_check_bits (ins->inst_imm, 11)) {
896 NEW_INS (cfg, temp, OP_ICONST);
897 temp->inst_c0 = ins->inst_imm;
898 temp->dreg = mono_alloc_ireg (cfg);
899 ins->sreg2 = temp->dreg;
900 ins->opcode = map_to_reg_reg_op (ins->opcode);
901 }
902 break;
903 case OP_SUB_IMM:
904 case OP_SUBCC_IMM:
905 if (!hppa_check_bits (ins->inst_imm, 11)) {
906 NEW_INS (cfg, temp, OP_ICONST);
907 temp->inst_c0 = ins->inst_imm;
908 temp->dreg = mono_alloc_ireg (cfg);
909 ins->sreg2 = temp->dreg;
910 ins->opcode = map_to_reg_reg_op (ins->opcode);
911 }
912 break;
913
914 case OP_MUL_IMM:
915 if (ins->inst_imm == 1) {
916 ins->opcode = OP_MOVE;
917 break;
918 }
919 if (ins->inst_imm == 0) {
920 ins->opcode = OP_ICONST;
921 ins->inst_c0 = 0;
922 break;
923 }
924 imm = mono_is_power_of_two (ins->inst_imm);
925 if (imm > 0) {
926 ins->opcode = OP_SHL_IMM;
927 ins->inst_imm = imm;
928 break;
929 }
930 else {
931 int tmp = mono_alloc_ireg (cfg);
932 NEW_INS (cfg, temp, OP_ICONST);
933 temp->inst_c0 = ins->inst_c0;
934 temp->dreg = tmp;
935
936 ins->opcode = CEE_MUL;
937 ins->sreg2 = tmp;
938 /* Need to rewrite the CEE_MUL too... */
939 goto loop_start;
940 }
941 break;
942
943 case CEE_MUL: {
944 int freg1 = mono_alloc_freg (cfg);
945 int freg2 = mono_alloc_freg (cfg);
946
947 NEW_INS(cfg, temp, OP_STORE_MEMBASE_REG);
948 temp->sreg1 = ins->sreg1;
949 temp->inst_destbasereg = hppa_sp;
950 temp->inst_offset = -16;
951
952 NEW_INS(cfg, temp, OP_LOADR4_MEMBASE);
953 temp->dreg = freg1;
954 temp->inst_basereg = hppa_sp;
955 temp->inst_offset = -16;
956
957 NEW_INS(cfg, temp, OP_STORE_MEMBASE_REG);
958 temp->sreg1 = ins->sreg2;
959 temp->inst_destbasereg = hppa_sp;
960 temp->inst_offset = -16;
961
962 NEW_INS(cfg, temp, OP_LOADR4_MEMBASE);
963 temp->dreg = freg2;
964 temp->inst_basereg = hppa_sp;
965 temp->inst_offset = -16;
966
967 NEW_INS (cfg, temp, OP_HPPA_XMPYU);
968 temp->dreg = freg2;
969 temp->sreg1 = freg1;
970 temp->sreg2 = freg2;
971
972 NEW_INS(cfg, temp, OP_HPPA_STORER4_RIGHT);
973 temp->sreg1 = freg2;
974 temp->inst_destbasereg = hppa_sp;
975 temp->inst_offset = -16;
976
977 ins->opcode = OP_LOAD_MEMBASE;
978 ins->inst_basereg = hppa_sp;
979 ins->inst_offset = -16;
980 }
981 break;
982
983 default:
984 break;
985 }
986 last_ins = ins;
987 }
988 bb->last_ins = last_ins;
989 bb->max_vreg = cfg->next_vreg;
990
991 }
992
993 void
994 hppa_patch (guint32 *code, const gpointer target)
995 {
996 guint32 ins = *code;
997 gint32 val = (gint32)target;
998 gint32 disp = (val - (gint32)code - 8) >> 2;
999 int reg1, reg2;
1000
1001 DEBUG (printf ("patching 0x%08x (0x%08x) to point to 0x%08x (disp = %d)\n", code, ins, val, disp));
1002
1003 switch (*code >> 26) {
1004 case 0x08: /* ldil, next insn can be a ldo, ldw, or ble */
1005 *code = *code & ~0x1fffff;
1006 *code = *code | hppa_op_imm21 (hppa_lsel (val));
1007 code++;
1008
1009 if ((*code >> 26) == 0x0D) { /* ldo */
1010 *code = *code & ~0x3fff;
1011 *code = *code | hppa_op_imm14 (hppa_rsel (val));
1012 } else if ((*code >> 26) == 0x12) { /* ldw */
1013 *code = *code & ~0x3fff;
1014 *code = *code | hppa_op_imm14 (hppa_rsel (val));
1015 } else if ((*code >> 26) == 0x39) { /* ble */
1016 *code = *code & ~0x1f1ffd;
1017 *code = *code | hppa_op_imm17 (hppa_rsel (val));
1018 }
1019
1020 break;
1021
1022 case 0x3A: /* bl */
1023 if (disp == 0) {
1024 hppa_nop (code);
1025 break;
1026 }
1027 if (!hppa_check_bits (disp, 17))
1028 goto jump_overflow;
1029 reg1 = (*code >> 21) & 0x1f;
1030 *code = (*code & ~0x1f1ffd) | hppa_op_imm17(disp);
1031 break;
1032
1033 case 0x20: /* combt */
1034 case 0x22: /* combf */
1035 if (!hppa_check_bits (disp >> 2, 12))
1036 goto jump_overflow;
1037 *code = (*code & ~0x1ffd) | hppa_op_imm12(disp);
1038 break;
1039
1040 default:
1041 g_warning ("Unpatched opcode %x\n", *code >> 26);
1042 }
1043
1044 return;
1045
1046 jump_overflow:
1047 g_warning ("cannot branch to target, insn is %08x, displacement is %d\n", (int)*code, (int)disp);
1048 g_assert_not_reached ();
1049 }
1050
1051 static guint32 *
1052 emit_float_to_int (MonoCompile *cfg, guint32 *code, int dreg, int sreg, int size, gboolean is_signed)
1053 {
1054 /* sreg is a float, dreg is an integer reg. */
1055 hppa_fcnvfxt (code, HPPA_FP_FMT_DBL, HPPA_FP_FMT_SGL, sreg, sreg);
1056 hppa_fstws (code, sreg, 0, -16, hppa_sp);
1057 hppa_ldw (code, -16, hppa_sp, dreg);
1058 if (!is_signed) {
1059 if (size == 1)
1060 hppa_extru (code, dreg, 31, 8, dreg);
1061 else if (size == 2)
1062 hppa_extru (code, dreg, 31, 16, dreg);
1063 } else {
1064 if (size == 1)
1065 hppa_extrs (code, dreg, 31, 8, dreg);
1066 else if (size == 2)
1067 hppa_extrs (code, dreg, 31, 16, dreg);
1068 }
1069 return code;
1070 }
1071
1072 /* Clobbers r1, r20, r21 */
1073 static guint32 *
1074 emit_memcpy (guint32 *code, int doff, int dreg, int soff, int sreg, int size)
1075 {
1076 /* r20 is the destination */
1077 hppa_set (code, doff, hppa_r20);
1078 hppa_add (code, hppa_r20, dreg, hppa_r20);
1079
1080 /* r21 is the source */
1081 hppa_set (code, soff, hppa_r21);
1082 hppa_add (code, hppa_r21, sreg, hppa_r21);
1083
1084 while (size >= 4) {
1085 hppa_ldw (code, 0, hppa_r21, hppa_r1);
1086 hppa_stw (code, hppa_r1, 0, hppa_r20);
1087 hppa_ldo (code, 4, hppa_r21, hppa_r21);
1088 hppa_ldo (code, 4, hppa_r20, hppa_r20);
1089 size -= 4;
1090 }
1091 while (size >= 2) {
1092 hppa_ldh (code, 0, hppa_r21, hppa_r1);
1093 hppa_sth (code, hppa_r1, 0, hppa_r20);
1094 hppa_ldo (code, 2, hppa_r21, hppa_r21);
1095 hppa_ldo (code, 2, hppa_r20, hppa_r20);
1096 size -= 2;
1097 }
1098 while (size > 0) {
1099 hppa_ldb (code, 0, hppa_r21, hppa_r1);
1100 hppa_stb (code, hppa_r1, 0, hppa_r20);
1101 hppa_ldo (code, 1, hppa_r21, hppa_r21);
1102 hppa_ldo (code, 1, hppa_r20, hppa_r20);
1103 size -= 1;
1104 }
1105
1106 return code;
1107 }
1108
1109 /*
1110 * mono_arch_get_vcall_slot_addr:
1111 *
1112 * Determine the vtable slot used by a virtual call.
1113 */
1114 gpointer*
1115 mono_arch_get_vcall_slot_addr (guint8 *code8, mgreg_t *regs)
1116 {
1117 guint32 *code = (guint32*)((unsigned long)code8 & ~3);
1118
1119 DEBUG_FUNC_ENTER();
1120
1121 code -= 2;
1122 /* This is the special virtual call token */
1123 if (code [-1] != 0x34000eee) /* ldo 0x777(r0),r0 */
1124 return NULL;
1125
1126 if ((code [0] >> 26) == 0x39 && /* ble */
1127 (code [-2] >> 26) == 0x12) { /* ldw */
1128 guint32 ldw = code [-2];
1129 guint32 reg = (ldw >> 21) & 0x1f;
1130 gint32 disp = ((ldw & 1) ? (-1 << 13) : 0) | ((ldw & 0x3fff) >> 1);
1131 /* FIXME: we are not guaranteed that reg is saved in the LMF.
1132 * In fact, it probably isn't, since it is allocated as a
1133 * callee register. Right now just return an address; this
1134 * is sufficient for non-AOT operation
1135 */
1136 // return (gpointer)((guint8*)regs [reg] + disp);
1137 return code;
1138 }
1139 else
1140 g_assert_not_reached ();
1141
1142 DEBUG_FUNC_EXIT();
1143 }
1144
1145 /* ins->dreg = *(ins->inst_desgbasereg + ins->inst_offset) */
1146 #define EMIT_LOAD_MEMBASE(ins, op) do { \
1147 if (!hppa_check_bits (ins->inst_offset, 14)) { \
1148 hppa_set (code, ins->inst_offset, hppa_r1); \
1149 hppa_ ## op ## x (code, hppa_r1, ins->inst_basereg, ins->dreg); \
1150 } \
1151 else { \
1152 hppa_ ## op (code, ins->inst_offset, ins->inst_basereg, ins->dreg); \
1153 } \
1154 } while (0)
1155
1156 #define EMIT_COND_BRANCH_FLAGS(ins,r1,r2,b0,b1) do {\
1157 if (b0) \
1158 hppa_combf (code, r1, r2, b1, 2); \
1159 else \
1160 hppa_combt (code, r1, r2, b1, 2); \
1161 hppa_nop (code); \
1162 mono_add_patch_info (cfg, (guint8*)code - cfg->native_code, MONO_PATCH_INFO_BB, ins->inst_true_bb); \
1163 hppa_bl (code, 0, hppa_r0); \
1164 hppa_nop (code); \
1165 } while (0)
1166
1167 #define EMIT_COND_BRANCH(ins,r1,r2,cond) EMIT_COND_BRANCH_FLAGS(ins, r1, r2, branch_b0_table [(cond)], branch_b1_table [(cond)])
1168
1169 #define EMIT_FLOAT_COND_BRANCH_FLAGS(ins,r1,r2,b0) do {\
1170 hppa_fcmp (code, HPPA_FP_FMT_DBL, b0, r1, r2); \
1171 hppa_ftest (code, 0); \
1172 mono_add_patch_info (cfg, (guint8*)code - cfg->native_code, MONO_PATCH_INFO_BB, ins->inst_true_bb); \
1173 hppa_bl (code, 8, hppa_r0); \
1174 hppa_nop (code); \
1175 } while (0)
1176
1177 #define EMIT_FLOAT_COND_BRANCH(ins,r1,r2,cond) EMIT_FLOAT_COND_BRANCH_FLAGS(ins, r1, r2, float_branch_table [cond])
1178
1179 #define EMIT_COND_SYSTEM_EXCEPTION_FLAGS(r1,r2,b0,b1,exc_name) \
1180 do { \
1181 MonoOvfJump *ovfj = mono_mempool_alloc (cfg->mempool, sizeof (MonoOvfJump)); \
1182 ovfj->data.exception = (exc_name); \
1183 ovfj->ip_offset = (guint8*)code - cfg->native_code; \
1184 hppa_bl (code, 8, hppa_r2); \
1185 hppa_depi (code, 0, 31, 2, hppa_r2); \
1186 hppa_ldo (code, 8, hppa_r2, hppa_r2); \
1187 if (b0) \
1188 hppa_combf (code, r1, r2, b1, 2); \
1189 else \
1190 hppa_combt (code, r1, r2, b1, 2); \
1191 hppa_nop (code); \
1192 mono_add_patch_info (cfg, (guint8*)code - cfg->native_code, MONO_PATCH_INFO_EXC_OVF, ovfj); \
1193 hppa_bl (code, 0, hppa_r0); \
1194 hppa_nop (code); \
1195 } while (0)
1196
1197 #define EMIT_COND_SYSTEM_EXCEPTION(r1,r2,cond,exc_name) EMIT_COND_SYSTEM_EXCEPTION_FLAGS(r1, r2, branch_b0_table [(cond)], branch_b1_table [(cond)], (exc_name))
1198
1199 /* TODO: MEM_INDEX_REG - cannot be r1 */
1200 #define MEM_INDEX_REG hppa_r31
1201 /* *(ins->inst_destbasereg + ins->inst_offset) = ins->inst_imm */
1202 #define EMIT_STORE_MEMBASE_IMM(ins, op) do { \
1203 guint32 sreg; \
1204 if (ins->inst_imm == 0) \
1205 sreg = hppa_r0; \
1206 else { \
1207 hppa_set (code, ins->inst_imm, hppa_r1); \
1208 sreg = hppa_r1; \
1209 } \
1210 if (!hppa_check_bits (ins->inst_offset, 14)) { \
1211 hppa_set (code, ins->inst_offset, MEM_INDEX_REG); \
1212 hppa_addl (code, ins->inst_destbasereg, MEM_INDEX_REG, MEM_INDEX_REG); \
1213 hppa_ ## op (code, sreg, 0, MEM_INDEX_REG); \
1214 } \
1215 else { \
1216 hppa_ ## op (code, sreg, ins->inst_offset, ins->inst_destbasereg); \
1217 } \
1218 } while (0)
1219
1220 /* *(ins->inst_destbasereg + ins->inst_offset) = ins->sreg1 */
1221 #define EMIT_STORE_MEMBASE_REG(ins, op) do { \
1222 if (!hppa_check_bits (ins->inst_offset, 14)) { \
1223 hppa_set (code, ins->inst_offset, MEM_INDEX_REG); \
1224 hppa_addl (code, ins->inst_destbasereg, MEM_INDEX_REG, MEM_INDEX_REG); \
1225 hppa_ ## op (code, ins->sreg1, 0, MEM_INDEX_REG); \
1226 } \
1227 else { \
1228 hppa_ ## op (code, ins->sreg1, ins->inst_offset, ins->inst_destbasereg); \
1229 } \
1230 } while (0)
1231
1232 void
1233 mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
1234 {
1235 MonoInst *ins;
1236 MonoCallInst *call;
1237 guint offset;
1238 guint32 *code = (guint32*)(cfg->native_code + cfg->code_len);
1239 MonoInst *last_ins = NULL;
1240 int max_len, cpos;
1241 const char *spec;
1242
1243 DEBUG_FUNC_ENTER();
1244
1245 if (cfg->verbose_level > 2)
1246 g_print ("[%s::%s] Basic block %d starting at offset 0x%x\n", cfg->method->klass->name, cfg->method->name, bb->block_num, bb->native_offset);
1247
1248 cpos = bb->max_offset;
1249
1250 if (cfg->prof_options & MONO_PROFILE_COVERAGE) {
1251 NOT_IMPLEMENTED;
1252 }
1253
1254 MONO_BB_FOR_EACH_INS (bb, ins) {
1255 guint8* code_start;
1256
1257 offset = (guint8*)code - cfg->native_code;
1258
1259 spec = ins_get_spec (ins->opcode);
1260
1261 max_len = ((guint8 *)spec) [MONO_INST_LEN];
1262
1263 if (offset > (cfg->code_size - max_len - 16)) {
1264 cfg->code_size *= 2;
1265 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
1266 code = (guint32*)(cfg->native_code + offset);
1267 cfg->stat_code_reallocs++;
1268 }
1269 code_start = (guint8*)code;
1270 // if (ins->cil_code)
1271 // g_print ("cil code\n");
1272 mono_debug_record_line_number (cfg, ins, offset);
1273
1274 switch (ins->opcode) {
1275 case OP_RELAXED_NOP:
1276 break;
1277 case OP_STOREI1_MEMBASE_IMM:
1278 EMIT_STORE_MEMBASE_IMM (ins, stb);
1279 break;
1280 case OP_STOREI2_MEMBASE_IMM:
1281 EMIT_STORE_MEMBASE_IMM (ins, sth);
1282 break;
1283 case OP_STORE_MEMBASE_IMM:
1284 case OP_STOREI4_MEMBASE_IMM:
1285 EMIT_STORE_MEMBASE_IMM (ins, stw);
1286 break;
1287 case OP_STOREI1_MEMBASE_REG:
1288 EMIT_STORE_MEMBASE_REG (ins, stb);
1289 break;
1290 case OP_STOREI2_MEMBASE_REG:
1291 EMIT_STORE_MEMBASE_REG (ins, sth);
1292 break;
1293 case OP_STORE_MEMBASE_REG:
1294 case OP_STOREI4_MEMBASE_REG:
1295 EMIT_STORE_MEMBASE_REG (ins, stw);
1296 break;
1297 case OP_LOADU1_MEMBASE:
1298 EMIT_LOAD_MEMBASE (ins, ldb);
1299 break;
1300 case OP_LOADI1_MEMBASE:
1301 EMIT_LOAD_MEMBASE (ins, ldb);
1302 hppa_extrs (code, ins->dreg, 31, 8, ins->dreg);
1303 break;
1304 case OP_LOADU2_MEMBASE:
1305 EMIT_LOAD_MEMBASE (ins, ldh);
1306 break;
1307 case OP_LOADI2_MEMBASE:
1308 EMIT_LOAD_MEMBASE (ins, ldh);
1309 hppa_extrs (code, ins->dreg, 31, 16, ins->dreg);
1310 break;
1311 case OP_LOAD_MEMBASE:
1312 case OP_LOADI4_MEMBASE:
1313 case OP_LOADU4_MEMBASE:
1314 EMIT_LOAD_MEMBASE (ins, ldw);
1315 break;
1316 case CEE_CONV_I1:
1317 hppa_extrs (code, ins->sreg1, 31, 8, ins->dreg);
1318 break;
1319 case CEE_CONV_I2:
1320 hppa_extrs (code, ins->sreg1, 31, 16, ins->dreg);
1321 break;
1322 case CEE_CONV_U1:
1323 hppa_extru (code, ins->sreg1, 31, 8, ins->dreg);
1324 break;
1325 case CEE_CONV_U2:
1326 hppa_extru (code, ins->sreg1, 31, 16, ins->dreg);
1327 break;
1328 case CEE_CONV_U:
1329 case CEE_CONV_I4:
1330 case CEE_CONV_U4:
1331 case OP_MOVE:
1332 if (ins->sreg1 != ins->dreg)
1333 hppa_copy (code, ins->sreg1, ins->dreg);
1334 break;
1335 case OP_SETLRET:
1336 hppa_copy (code, ins->sreg1 + 1, ins->dreg);
1337 hppa_copy (code, ins->sreg1, ins->dreg + 1);
1338 break;
1339
1340 case OP_BREAK:
1341 /* break 4,8 - this is what gdb normally uses... */
1342 *code++ = 0x00010004;
1343 break;
1344 case OP_ADDCC:
1345 case CEE_ADD:
1346 hppa_add (code, ins->sreg1, ins->sreg2, ins->dreg);
1347 break;
1348 case OP_ADC:
1349 hppa_addc (code, ins->sreg1, ins->sreg2, ins->dreg);
1350 break;
1351 case OP_ADDCC_IMM:
1352 case OP_ADD_IMM:
1353 hppa_addi (code, ins->inst_imm, ins->sreg1, ins->dreg);
1354 break;
1355 case OP_ADC_IMM:
1356 hppa_set (code, ins->inst_imm, hppa_r1);
1357 hppa_addc (code, ins->sreg1, hppa_r1, ins->dreg);
1358 break;
1359 case OP_HPPA_ADD_OVF: {
1360 MonoOvfJump *ovfj = mono_mempool_alloc (cfg->mempool, sizeof (MonoOvfJump));
1361 hppa_bl (code, 8, hppa_r2);
1362 hppa_depi (code, 0, 31, 2, hppa_r2);
1363 hppa_ldo (code, 12, hppa_r2, hppa_r2);
1364
1365 if (ins->backend.reg3 == CEE_ADD_OVF)
1366 hppa_add_cond (code, HPPA_ADD_COND_NSV, ins->sreg1, ins->sreg2, ins->dreg);
1367 else
1368 hppa_add_cond (code, HPPA_ADD_COND_NUV, ins->sreg1, ins->sreg2, ins->dreg);
1369
1370 ovfj->data.exception = "OverflowException";
1371 ovfj->ip_offset = (guint8*)code - cfg->native_code;
1372 mono_add_patch_info (cfg, (guint8*)code - cfg->native_code, MONO_PATCH_INFO_EXC_OVF, ovfj);
1373 hppa_bl_n (code, 8, hppa_r0);
1374 break;
1375 }
1376 case OP_HPPA_ADDC_OVF: {
1377 MonoOvfJump *ovfj = mono_mempool_alloc (cfg->mempool, sizeof (MonoOvfJump));
1378 hppa_bl (code, 8, hppa_r2);
1379 hppa_depi (code, 0, 31, 2, hppa_r2);
1380 hppa_ldo (code, 12, hppa_r2, hppa_r2);
1381
1382 if (ins->backend.reg3 == OP_LADD_OVF)
1383 hppa_addc_cond (code, HPPA_ADD_COND_NSV, ins->sreg1, ins->sreg2, ins->dreg);
1384 else
1385 hppa_addc_cond (code, HPPA_ADD_COND_NUV, ins->sreg1, ins->sreg2, ins->dreg);
1386
1387 ovfj->data.exception = "OverflowException";
1388 ovfj->ip_offset = (guint8*)code - cfg->native_code;
1389 mono_add_patch_info (cfg, (guint8*)code - cfg->native_code, MONO_PATCH_INFO_EXC_OVF, ovfj);
1390 hppa_bl_n (code, 8, hppa_r0);
1391 break;
1392 }
1393 case OP_SUBCC:
1394 case CEE_SUB:
1395 hppa_sub (code, ins->sreg1, ins->sreg2, ins->dreg);
1396 break;
1397 case OP_SUBCC_IMM:
1398 case OP_SUB_IMM:
1399 hppa_addi (code, -ins->inst_imm, ins->sreg1, ins->dreg);
1400 break;
1401 case OP_SBB:
1402 hppa_subb (code, ins->sreg1, ins->sreg2, ins->dreg);
1403 break;
1404 case OP_SBB_IMM:
1405 hppa_set (code, ins->inst_imm, hppa_r1);
1406 hppa_subb (code, ins->sreg1, hppa_r1, ins->dreg);
1407 break;
1408 case OP_HPPA_SUB_OVF: {
1409 MonoOvfJump *ovfj = mono_mempool_alloc (cfg->mempool, sizeof (MonoOvfJump));
1410 hppa_bl (code, 8, hppa_r2);
1411 hppa_depi (code, 0, 31, 2, hppa_r2);
1412 hppa_ldo (code, 12, hppa_r2, hppa_r2);
1413 hppa_sub_cond (code, HPPA_SUB_COND_NSV, ins->sreg1, ins->sreg2, ins->dreg);
1414 ovfj->data.exception = "OverflowException";
1415 ovfj->ip_offset = (guint8*)code - cfg->native_code;
1416 mono_add_patch_info (cfg, (guint8*)code - cfg->native_code, MONO_PATCH_INFO_EXC_OVF, ovfj);
1417 hppa_bl_n (code, 8, hppa_r0);
1418 break;
1419 }
1420 case OP_HPPA_SUBB_OVF: {
1421 MonoOvfJump *ovfj = mono_mempool_alloc (cfg->mempool, sizeof (MonoOvfJump));
1422 hppa_bl (code, 8, hppa_r2);
1423 hppa_depi (code, 0, 31, 2, hppa_r2);
1424 hppa_ldo (code, 12, hppa_r2, hppa_r2);
1425
1426 hppa_subb_cond (code, HPPA_SUB_COND_NSV, ins->sreg1, ins->sreg2, ins->dreg);
1427 ovfj->data.exception = "OverflowException";
1428 ovfj->ip_offset = (guint8*)code - cfg->native_code;
1429 mono_add_patch_info (cfg, (guint8*)code - cfg->native_code, MONO_PATCH_INFO_EXC_OVF, ovfj);
1430 hppa_bl_n (code, 8, hppa_r0);
1431 break;
1432 }
1433
1434 case CEE_AND:
1435 hppa_and (code, ins->sreg1, ins->sreg2, ins->dreg);
1436 break;
1437 case OP_AND_IMM:
1438 hppa_set (code, ins->inst_imm, hppa_r1);
1439 hppa_and (code, ins->sreg1, hppa_r1, ins->dreg);
1440 break;
1441
1442 case CEE_OR:
1443 hppa_or (code, ins->sreg1, ins->sreg2, ins->dreg);
1444 break;
1445
1446 case OP_OR_IMM:
1447 hppa_set (code, ins->inst_imm, hppa_r1);
1448 hppa_or (code, ins->sreg1, hppa_r1, ins->dreg);
1449 break;
1450
1451 case CEE_XOR:
1452 hppa_xor (code, ins->sreg1, ins->sreg2, ins->dreg);
1453 break;
1454 case OP_XOR_IMM:
1455 hppa_set (code, ins->inst_imm, hppa_r1);
1456 hppa_xor (code, ins->sreg1, hppa_r1, ins->dreg);
1457 break;
1458 case CEE_SHL:
1459 if (ins->sreg1 != ins->dreg) {
1460 hppa_shl (code, ins->sreg1, ins->sreg2, ins->dreg);
1461 }
1462 else {
1463 hppa_copy (code, ins->sreg1, hppa_r1);
1464 hppa_shl (code, hppa_r1, ins->sreg2, ins->dreg);
1465 }
1466 break;
1467 case OP_SHL_IMM:
1468 case OP_ISHL_IMM:
1469 g_assert (ins->inst_imm < 32);
1470 if (ins->sreg1 != ins->dreg) {
1471 hppa_zdep (code, ins->sreg1, 31-ins->inst_imm, 32-ins->inst_imm, ins->dreg);
1472 }
1473 else {
1474 hppa_copy (code, ins->sreg1, hppa_r1);
1475 hppa_zdep (code, hppa_r1, 31-ins->inst_imm, 32-ins->inst_imm, ins->dreg);
1476 }
1477 break;
1478 case CEE_SHR:
1479 if (ins->sreg1 != ins->dreg) {
1480 hppa_shr (code, ins->sreg1, ins->sreg2, ins->dreg);
1481 }
1482 else {
1483 hppa_copy (code, ins->sreg1, hppa_r1);
1484 hppa_shr (code, hppa_r1, ins->sreg2, ins->dreg);
1485 }
1486 break;
1487 case OP_SHR_IMM:
1488 g_assert (ins->inst_imm < 32);
1489 if (ins->sreg1 != ins->dreg) {
1490 hppa_extrs (code, ins->sreg1, 31-ins->inst_imm, 32-ins->inst_imm, ins->dreg);
1491 }
1492 else {
1493 hppa_copy (code, ins->sreg1, hppa_r1);
1494 hppa_extrs (code, hppa_r1, 31-ins->inst_imm, 32-ins->inst_imm, ins->dreg);
1495 }
1496 break;
1497 case OP_SHR_UN_IMM:
1498 g_assert (ins->inst_imm < 32);
1499 if (ins->sreg1 != ins->dreg) {
1500 hppa_extru (code, ins->sreg1, 31-ins->inst_imm, 32-ins->inst_imm, ins->dreg);
1501 }
1502 else {
1503 hppa_copy (code, ins->sreg1, hppa_r1);
1504 hppa_extru (code, hppa_r1, 31-ins->inst_imm, 32-ins->inst_imm, ins->dreg);
1505 }
1506 break;
1507 case CEE_SHR_UN:
1508 if (ins->sreg1 != ins->dreg) {
1509 hppa_lshr (code, ins->sreg1, ins->sreg2, ins->dreg);
1510 }
1511 else {
1512 hppa_copy (code, ins->sreg1, hppa_r1);
1513 hppa_lshr (code, hppa_r1, ins->sreg2, ins->dreg);
1514 }
1515 break;
1516 case CEE_NOT:
1517 hppa_not (code, ins->sreg1, ins->dreg);
1518 break;
1519 case CEE_NEG:
1520 hppa_subi (code, 0, ins->sreg1, ins->dreg);
1521 break;
1522
1523 case CEE_MUL:
1524 case OP_MUL_IMM:
1525 /* Should have been rewritten using xmpyu */
1526 g_assert_not_reached ();
1527
1528 case OP_ICONST:
1529 if ((ins->inst_c0 > 0 && ins->inst_c0 >= (1 << 13)) ||
1530 (ins->inst_c0 < 0 && ins->inst_c0 < -(1 << 13))) {
1531 hppa_ldil (code, hppa_lsel (ins->inst_c0), ins->dreg);
1532 hppa_ldo (code, hppa_rsel (ins->inst_c0), ins->dreg, ins->dreg);
1533 } else {
1534 hppa_ldo (code, ins->inst_c0, hppa_r0, ins->dreg);
1535 }
1536 break;
1537 case OP_AOTCONST:
1538 g_assert_not_reached ();
1539 /*
1540 mono_add_patch_info (cfg, offset, (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
1541 hppa_set_template (code, ins->dreg);
1542 */
1543 g_warning ("unimplemented opcode %s in %s()\n", mono_inst_name (ins->opcode), __FUNCTION__);
1544 NOT_IMPLEMENTED;
1545 break;
1546 case OP_FMOVE:
1547 if (ins->sreg1 != ins->dreg)
1548 hppa_fcpy (code, HPPA_FP_FMT_DBL, ins->sreg1, ins->dreg);
1549 break;
1550
1551 case OP_HPPA_OUTARG_R4CONST:
1552 hppa_set (code, (unsigned int)ins->inst_p0, hppa_r1);
1553 hppa_fldwx (code, hppa_r0, hppa_r1, ins->dreg, 0);
1554 break;
1555
1556 case OP_HPPA_OUTARG_REGOFFSET:
1557 hppa_ldo (code, ins->inst_offset, ins->inst_basereg, ins->dreg);
1558 break;
1559
1560 case OP_JMP:
1561 /*
1562 * Keep in sync with mono_arch_emit_epilog
1563 */
1564 g_assert (!cfg->method->save_lmf);
1565 mono_add_patch_info (cfg, (guint8*) code - cfg->native_code, MONO_PATCH_INFO_METHOD_JUMP, ins->inst_p0);
1566 hppa_bl (code, 8, hppa_r0);
1567 break;
1568 case OP_CHECK_THIS:
1569 /* ensure ins->sreg1 is not NULL */
1570 hppa_ldw (code, 0, ins->sreg1, hppa_r1);
1571 break;
1572 case OP_ARGLIST:
1573 break;
1574 case OP_FCALL:
1575 case OP_LCALL:
1576 case OP_VCALL:
1577 case OP_VOIDCALL:
1578 case OP_CALL:
1579 call = (MonoCallInst*)ins;
1580 if (ins->flags & MONO_INST_HAS_METHOD)
1581 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_METHOD, call->method);
1582 else
1583 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS, call->fptr);
1584 hppa_ldil (code, 0, hppa_r1);
1585 hppa_ldo (code, 0, hppa_r1, hppa_r1);
1586 /*
1587 * We may have loaded an actual function address, or
1588 * it might be a plabel. Check to see if the plabel
1589 * bit is set, and load the actual fptr from it if
1590 * needed
1591 */
1592 hppa_bb_n (code, HPPA_BIT_COND_MSB_CLR, hppa_r1, 30, 2);
1593 hppa_depi (code, 0, 31, 2, hppa_r1);
1594 hppa_ldw (code, 4, hppa_r1, hppa_r19);
1595 hppa_ldw (code, 0, hppa_r1, hppa_r1);
1596 hppa_ble (code, 0, hppa_r1);
1597 hppa_copy (code, hppa_r31, hppa_r2);
1598 if (call->signature->ret->type == MONO_TYPE_R4)
1599 hppa_fcnvff (code, HPPA_FP_FMT_SGL, HPPA_FP_FMT_DBL, hppa_fr4, hppa_fr4);
1600 break;
1601 case OP_FCALL_REG:
1602 case OP_LCALL_REG:
1603 case OP_VCALL_REG:
1604 case OP_VOIDCALL_REG:
1605 case OP_CALL_REG:
1606 call = (MonoCallInst*)ins;
1607 g_assert (!call->virtual);
1608 hppa_copy (code, ins->sreg1, hppa_r1);
1609 hppa_bb_n (code, HPPA_BIT_COND_MSB_CLR, hppa_r1, 30, 2);
1610 hppa_depi (code, 0, 31, 2, hppa_r1);
1611 hppa_ldw (code, 4, hppa_r1, hppa_r19);
1612 hppa_ldw (code, 0, hppa_r1, hppa_r1);
1613 hppa_ble (code, 0, hppa_r1);
1614 hppa_copy (code, hppa_r31, hppa_r2);
1615 if (call->signature->ret->type == MONO_TYPE_R4)
1616 hppa_fcnvff (code, HPPA_FP_FMT_SGL, HPPA_FP_FMT_DBL, hppa_fr4, hppa_fr4);
1617 break;
1618 case OP_FCALL_MEMBASE:
1619 case OP_LCALL_MEMBASE:
1620 case OP_VCALL_MEMBASE:
1621 case OP_VOIDCALL_MEMBASE:
1622 case OP_CALL_MEMBASE:
1623 call = (MonoCallInst*)ins;
1624 /* jump to ins->inst_sreg1 + ins->inst_offset */
1625 hppa_ldw (code, ins->inst_offset, ins->sreg1, hppa_r1);
1626
1627 /* For virtual calls, emit a special token that can
1628 * be used by get_vcall_slot_addr
1629 */
1630 if (call->virtual)
1631 hppa_ldo (code, 0x777, hppa_r0, hppa_r0);
1632 hppa_ble (code, 0, hppa_r1);
1633 hppa_copy (code, hppa_r31, hppa_r2);
1634 break;
1635 case OP_LOCALLOC: {
1636 guint32 size_reg;
1637
1638 /* Keep alignment */
1639 hppa_ldo (code, MONO_ARCH_LOCALLOC_ALIGNMENT - 1, ins->sreg1, ins->dreg);
1640 hppa_depi (code, 0, 31, 6, ins->dreg);
1641 hppa_copy (code, hppa_sp, hppa_r1);
1642 hppa_addl (code, ins->dreg, hppa_sp, hppa_sp);
1643 hppa_copy (code, hppa_r1, ins->dreg);
1644
1645 if (ins->flags & MONO_INST_INIT) {
1646 hppa_stw (code, hppa_r0, 0, hppa_r1);
1647 hppa_combt (code, hppa_r1, hppa_sp, HPPA_CMP_COND_ULT, -3);
1648 hppa_ldo (code, 4, hppa_r1, hppa_r1);
1649 }
1650 break;
1651 }
1652
1653 case OP_THROW:
1654 hppa_copy (code, ins->sreg1, hppa_r26);
1655 mono_add_patch_info (cfg, (guint8*)code - cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
1656 (gpointer)"mono_arch_throw_exception");
1657 hppa_ldil (code, 0, hppa_r1);
1658 hppa_ldo (code, 0, hppa_r1, hppa_r1);
1659 hppa_ble (code, 0, hppa_r1);
1660 hppa_copy (code, hppa_r31, hppa_r2);
1661 /* should never return */
1662 *code++ = 0xffeeddcc;
1663 break;
1664 case OP_RETHROW:
1665 hppa_copy (code, ins->sreg1, hppa_r26);
1666 mono_add_patch_info (cfg, (guint8*)code - cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
1667 (gpointer)"mono_arch_rethrow_exception");
1668 hppa_ldil (code, 0, hppa_r1);
1669 hppa_ldo (code, 0, hppa_r1, hppa_r1);
1670 hppa_ble (code, 0, hppa_r1);
1671 hppa_copy (code, hppa_r31, hppa_r2);
1672 /* should never return */
1673 *code++ = 0xffeeddcc;
1674 break;
1675 case OP_START_HANDLER:
1676 if (hppa_check_bits (ins->inst_left->inst_offset, 14))
1677 hppa_stw (code, hppa_r2, ins->inst_left->inst_offset, ins->inst_left->inst_basereg);
1678 else {
1679 hppa_set (code, ins->inst_left->inst_offset, hppa_r1);
1680 hppa_addl (code, ins->inst_left->inst_basereg, hppa_r1, hppa_r1);
1681 hppa_stw (code, hppa_r2, 0, hppa_r1);
1682 }
1683 break;
1684 case OP_ENDFILTER:
1685 if (ins->sreg1 != hppa_r26)
1686 hppa_copy (code, ins->sreg1, hppa_r26);
1687 if (hppa_check_bits (ins->inst_left->inst_offset, 14))
1688 hppa_ldw (code, ins->inst_left->inst_offset, ins->inst_left->inst_basereg, hppa_r2);
1689 else {
1690 hppa_set (code, ins->inst_left->inst_offset, hppa_r1);
1691 hppa_ldwx (code, hppa_r1, ins->inst_left->inst_basereg, hppa_r2);
1692 }
1693 hppa_bv (code, hppa_r0, hppa_r2);
1694 hppa_nop (code);
1695 break;
1696 case OP_ENDFINALLY:
1697 if (hppa_check_bits (ins->inst_left->inst_offset, 14))
1698 hppa_ldw (code, ins->inst_left->inst_offset, ins->inst_left->inst_basereg, hppa_r1);
1699 else {
1700 hppa_set (code, ins->inst_left->inst_offset, hppa_r1);
1701 hppa_ldwx (code, hppa_r1, ins->inst_left->inst_basereg, hppa_r1);
1702 }
1703 hppa_bv (code, hppa_r0, hppa_r1);
1704 hppa_nop (code);
1705 break;
1706 case OP_CALL_HANDLER:
1707 mono_add_patch_info (cfg, (guint8*)code - cfg->native_code, MONO_PATCH_INFO_BB, ins->inst_target_bb);
1708 hppa_bl (code, 0, hppa_r2);
1709 hppa_nop (code);
1710 break;
1711 case OP_LABEL:
1712 ins->inst_c0 = (guint8*)code - cfg->native_code;
1713 break;
1714 case OP_BR: {
1715 guint32 target;
1716 DEBUG (printf ("target: %p, next: %p, curr: %p, last: %p\n", ins->inst_target_bb, bb->next_bb, ins, bb->last_ins));
1717 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_BB, ins->inst_target_bb);
1718 hppa_bl (code, 8, hppa_r0);
1719 /* TODO: if the branch is too long, we may need to
1720 * use a long-branch sequence:
1721 * hppa_ldil (code, 0, hppa_r1);
1722 * hppa_ldo (code, 0, hppa_r1, hppa_r1);
1723 * hppa_bv (code, hppa_r0, hppa_r1);
1724 */
1725 hppa_nop (code);
1726 break;
1727 }
1728 case OP_BR_REG:
1729 hppa_bv (code, hppa_r0, ins->sreg1);
1730 hppa_nop(code);
1731 break;
1732
1733 case OP_SWITCH: {
1734 int i;
1735
1736 max_len += 8 * GPOINTER_TO_INT (ins->klass);
1737 if (offset > (cfg->code_size - max_len - 16)) {
1738 cfg->code_size += max_len;
1739 cfg->code_size *= 2;
1740 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
1741 code = cfg->native_code + offset;
1742 code_start = (guint8*)code;
1743 }
1744 hppa_blr (code, ins->sreg1, hppa_r0);
1745 hppa_nop (code);
1746 for (i = 0; i < GPOINTER_TO_INT (ins->klass); ++i) {
1747 *code++ = 0xdeadbeef;
1748 *code++ = 0xdeadbeef;
1749 }
1750 break;
1751 }
1752
1753 /* comclr is cool :-) */
1754 case OP_HPPA_CEQ:
1755 hppa_comclr_cond (code, HPPA_SUB_COND_NE, ins->sreg1, ins->sreg2, ins->dreg);
1756 hppa_ldo (code, 1, hppa_r0, ins->dreg);
1757 break;
1758
1759 case OP_HPPA_CLT:
1760 hppa_comclr_cond (code, HPPA_SUB_COND_SGE, ins->sreg1, ins->sreg2, ins->dreg);
1761 hppa_ldo (code, 1, hppa_r0, ins->dreg);
1762 break;
1763
1764 case OP_HPPA_CLT_UN:
1765 hppa_comclr_cond (code, HPPA_SUB_COND_UGE, ins->sreg1, ins->sreg2, ins->dreg);
1766 hppa_ldo (code, 1, hppa_r0, ins->dreg);
1767 break;
1768
1769 case OP_HPPA_CGT:
1770 hppa_comclr_cond (code, HPPA_SUB_COND_SLE, ins->sreg1, ins->sreg2, ins->dreg);
1771 hppa_ldo (code, 1, hppa_r0, ins->dreg);
1772 break;
1773
1774 case OP_HPPA_CGT_UN:
1775 hppa_comclr_cond (code, HPPA_SUB_COND_ULE, ins->sreg1, ins->sreg2, ins->dreg);
1776 hppa_ldo (code, 1, hppa_r0, ins->dreg);
1777 break;
1778
1779 case OP_CEQ:
1780 case OP_CLT:
1781 case OP_CLT_UN:
1782 case OP_CGT:
1783 case OP_CGT_UN:
1784 case OP_COND_EXC_EQ:
1785 case OP_COND_EXC_NE_UN:
1786 case OP_COND_EXC_LT:
1787 case OP_COND_EXC_LT_UN:
1788 case OP_COND_EXC_GT:
1789 case OP_COND_EXC_GT_UN:
1790 case OP_COND_EXC_GE:
1791 case OP_COND_EXC_GE_UN:
1792 case OP_COND_EXC_LE:
1793 case OP_COND_EXC_LE_UN:
1794 case OP_COND_EXC_OV:
1795 case OP_COND_EXC_NO:
1796 case OP_COND_EXC_C:
1797 case OP_COND_EXC_NC:
1798 case OP_COND_EXC_IOV:
1799 case OP_COND_EXC_IC:
1800 case CEE_BEQ:
1801 case CEE_BNE_UN:
1802 case CEE_BLT:
1803 case CEE_BLT_UN:
1804 case CEE_BGT:
1805 case CEE_BGT_UN:
1806 case CEE_BGE:
1807 case CEE_BGE_UN:
1808 case CEE_BLE:
1809 case CEE_BLE_UN:
1810 case OP_COMPARE:
1811 case OP_LCOMPARE:
1812 case OP_ICOMPARE:
1813 case OP_COMPARE_IMM:
1814 case OP_ICOMPARE_IMM:
1815 g_warning ("got opcode %s in %s(), should be reduced\n", mono_inst_name (ins->opcode), __FUNCTION__);
1816 g_assert_not_reached ();
1817 break;
1818
1819 case OP_HPPA_BEQ:
1820 case OP_HPPA_BNE:
1821 case OP_HPPA_BLT:
1822 case OP_HPPA_BLT_UN:
1823 case OP_HPPA_BGT:
1824 case OP_HPPA_BGT_UN:
1825 case OP_HPPA_BGE:
1826 case OP_HPPA_BGE_UN:
1827 case OP_HPPA_BLE:
1828 case OP_HPPA_BLE_UN:
1829 EMIT_COND_BRANCH (ins, ins->sreg1, ins->sreg2, ins->opcode - OP_HPPA_BEQ);
1830 break;
1831
1832 case OP_HPPA_COND_EXC_EQ:
1833 case OP_HPPA_COND_EXC_GE:
1834 case OP_HPPA_COND_EXC_GT:
1835 case OP_HPPA_COND_EXC_LE:
1836 case OP_HPPA_COND_EXC_LT:
1837 case OP_HPPA_COND_EXC_NE_UN:
1838 case OP_HPPA_COND_EXC_GE_UN:
1839 case OP_HPPA_COND_EXC_GT_UN:
1840 case OP_HPPA_COND_EXC_LE_UN:
1841 case OP_HPPA_COND_EXC_LT_UN:
1842 EMIT_COND_SYSTEM_EXCEPTION (ins->sreg1, ins->sreg2, ins->opcode - OP_HPPA_COND_EXC_EQ, ins->inst_p1);
1843 break;
1844
1845 case OP_HPPA_COND_EXC_OV:
1846 case OP_HPPA_COND_EXC_NO:
1847 case OP_HPPA_COND_EXC_C:
1848 case OP_HPPA_COND_EXC_NC:
1849 NOT_IMPLEMENTED;
1850
1851 /* floating point opcodes */
1852 case OP_R8CONST:
1853 hppa_set (code, (unsigned int)ins->inst_p0, hppa_r1);
1854 hppa_flddx (code, hppa_r0, hppa_r1, ins->dreg);
1855 break;
1856 case OP_R4CONST:
1857 hppa_set (code, (unsigned int)ins->inst_p0, hppa_r1);
1858 hppa_fldwx (code, hppa_r0, hppa_r1, hppa_fr31, 0);
1859 hppa_fcnvff (code, HPPA_FP_FMT_SGL, HPPA_FP_FMT_DBL, hppa_fr31, ins->dreg);
1860 break;
1861 case OP_STORER8_MEMBASE_REG:
1862 hppa_set (code, ins->inst_offset, hppa_r1);
1863 hppa_fstdx (code, ins->sreg1, hppa_r1, ins->inst_destbasereg);
1864 break;
1865 case OP_LOADR8_MEMBASE:
1866 hppa_set (code, ins->inst_offset, hppa_r1);
1867 hppa_flddx (code, hppa_r1, ins->inst_basereg, ins->dreg);
1868 break;
1869 case OP_STORER4_MEMBASE_REG:
1870 hppa_fcnvff (code, HPPA_FP_FMT_DBL, HPPA_FP_FMT_SGL, ins->sreg1, hppa_fr31);
1871 if (hppa_check_bits (ins->inst_offset, 5)) {
1872 hppa_fstws (code, hppa_fr31, 0, ins->inst_offset, ins->inst_destbasereg);
1873 } else {
1874 hppa_set (code, ins->inst_offset, hppa_r1);
1875 hppa_fstwx (code, hppa_fr31, 0, hppa_r1, ins->inst_destbasereg);
1876 }
1877 break;
1878 case OP_HPPA_STORER4_LEFT:
1879 case OP_HPPA_STORER4_RIGHT:
1880 if (hppa_check_bits (ins->inst_offset, 5)) {
1881 hppa_fstws (code, ins->sreg1, (ins->opcode == OP_HPPA_STORER4_RIGHT), ins->inst_offset, ins->inst_destbasereg);
1882 } else {
1883 hppa_set (code, ins->inst_offset, hppa_r1);
1884 hppa_fstwx (code, ins->sreg1, (ins->opcode == OP_HPPA_STORER4_RIGHT), hppa_r1, ins->inst_destbasereg);
1885 }
1886 break;
1887 case OP_LOADR4_MEMBASE:
1888 if (hppa_check_bits (ins->inst_offset, 5)) {
1889 hppa_fldws (code, ins->inst_offset, ins->inst_basereg, hppa_fr31, 0);
1890 } else {
1891 hppa_set (code, ins->inst_offset, hppa_r1);
1892 hppa_fldwx (code, hppa_r1, ins->inst_basereg, hppa_fr31, 0);
1893 }
1894 hppa_fcnvff (code, HPPA_FP_FMT_SGL, HPPA_FP_FMT_DBL, hppa_fr31, ins->dreg);
1895 break;
1896 case OP_HPPA_LOADR4_LEFT:
1897 case OP_HPPA_LOADR4_RIGHT:
1898 if (hppa_check_bits (ins->inst_offset, 5)) {
1899 hppa_fldws (code, ins->inst_offset, ins->inst_basereg, ins->dreg, (ins->opcode == OP_HPPA_LOADR4_RIGHT));
1900 } else {
1901 hppa_set (code, ins->inst_offset, hppa_r1);
1902 hppa_fldwx (code, hppa_r1, ins->inst_basereg, ins->dreg, (ins->opcode == OP_HPPA_LOADR4_RIGHT));
1903 }
1904 break;
1905
1906 case CEE_CONV_R4:
1907 hppa_stw (code, ins->sreg1, -16, hppa_sp);
1908 hppa_fldws (code, -16, hppa_sp, hppa_fr31, 0);
1909 hppa_fcnvxf (code, HPPA_FP_FMT_SGL, HPPA_FP_FMT_SGL, hppa_fr31, ins->dreg);
1910 hppa_fcnvff (code, HPPA_FP_FMT_SGL, HPPA_FP_FMT_DBL, ins->dreg, ins->dreg);
1911 break;
1912
1913 case OP_FCONV_TO_R4:
1914 /* reduce precision */
1915 hppa_fcnvff (code, HPPA_FP_FMT_DBL, HPPA_FP_FMT_SGL, ins->sreg1, ins->dreg);
1916 hppa_fcnvff (code, HPPA_FP_FMT_SGL, HPPA_FP_FMT_DBL, ins->dreg, ins->dreg);
1917 break;
1918
1919 case OP_HPPA_SETF4REG:
1920 hppa_fcnvff (code, HPPA_FP_FMT_DBL, HPPA_FP_FMT_SGL, ins->sreg1, ins->dreg);
1921 break;
1922 case CEE_CONV_R8:
1923 hppa_stw (code, ins->sreg1, -16, hppa_sp);
1924 hppa_fldws (code, -16, hppa_sp, hppa_fr31, 0);
1925 hppa_fcnvxf (code, HPPA_FP_FMT_SGL, HPPA_FP_FMT_DBL, hppa_fr31, ins->dreg);
1926 break;
1927
1928 case OP_FCONV_TO_I1:
1929 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, TRUE);
1930 break;
1931 case OP_FCONV_TO_U1:
1932 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, FALSE);
1933 break;
1934 case OP_FCONV_TO_I2:
1935 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, TRUE);
1936 break;
1937 case OP_FCONV_TO_U2:
1938 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, FALSE);
1939 break;
1940 case OP_FCONV_TO_I4:
1941 case OP_FCONV_TO_I:
1942 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, TRUE);
1943 break;
1944 case OP_FCONV_TO_U4:
1945 case OP_FCONV_TO_U:
1946 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, FALSE);
1947 break;
1948
1949 case OP_FCONV_TO_I8:
1950 case OP_FCONV_TO_U8:
1951 g_assert_not_reached ();
1952 /* Implemented as helper calls */
1953 break;
1954 case OP_LCONV_TO_R_UN:
1955 g_assert_not_reached ();
1956 /* Implemented as helper calls */
1957 break;
1958
1959 case OP_LCONV_TO_OVF_I:
1960 NOT_IMPLEMENTED;
1961 break;
1962
1963 case OP_FADD:
1964 hppa_fadd (code, HPPA_FP_FMT_DBL, ins->sreg1, ins->sreg2, ins->dreg);
1965 break;
1966 case OP_FSUB:
1967 hppa_fsub (code, HPPA_FP_FMT_DBL, ins->sreg1, ins->sreg2, ins->dreg);
1968 break;
1969 case OP_FMUL:
1970 hppa_fmul (code, HPPA_FP_FMT_DBL, ins->sreg1, ins->sreg2, ins->dreg);
1971 break;
1972 case OP_FDIV:
1973 hppa_fdiv (code, HPPA_FP_FMT_DBL, ins->sreg1, ins->sreg2, ins->dreg);
1974 break;
1975 case OP_FREM:
1976 NOT_IMPLEMENTED;
1977 break;
1978
1979 case OP_FCOMPARE:
1980 g_assert_not_reached();
1981 break;
1982
1983 case OP_FCEQ:
1984 case OP_FCLT:
1985 case OP_FCLT_UN:
1986 case OP_FCGT:
1987 case OP_FCGT_UN:
1988 hppa_fcmp (code, HPPA_FP_FMT_DBL, float_ceq_table [ins->opcode - OP_FCEQ], ins->sreg1, ins->sreg2);
1989 hppa_ftest (code, 0);
1990 hppa_bl (code, 12, hppa_r0);
1991 hppa_ldo (code, 1, hppa_r0, ins->dreg);
1992 hppa_ldo (code, 0, hppa_r0, ins->dreg);
1993 break;
1994
1995 case OP_FBEQ:
1996 case OP_FBLT:
1997 case OP_FBGT:
1998 case OP_FBGE:
1999 case OP_FBLE:
2000 case OP_FBNE_UN:
2001 case OP_FBLT_UN:
2002 case OP_FBGT_UN:
2003 case OP_FBGE_UN:
2004 case OP_FBLE_UN:
2005 EMIT_FLOAT_COND_BRANCH (ins, ins->sreg1, ins->sreg2, ins->opcode - OP_FBEQ);
2006 break;
2007
2008 case OP_CKFINITE:
2009 case OP_MEMORY_BARRIER:
2010 break;
2011
2012 case OP_HPPA_XMPYU:
2013 hppa_xmpyu (code, ins->sreg1, ins->sreg2, ins->dreg);
2014 break;
2015
2016 default:
2017 g_warning ("unknown opcode %s in %s()\n", mono_inst_name (ins->opcode), __FUNCTION__);
2018 g_assert_not_reached ();
2019 }
2020
2021 if ((((guint8*)code) - code_start) > max_len) {
2022 g_warning ("wrong maximal instruction length of instruction %s (expected %d, got %d)",
2023 mono_inst_name (ins->opcode), max_len, ((guint8*)code) - code_start);
2024 g_assert_not_reached ();
2025 }
2026
2027 cpos += max_len;
2028
2029 last_ins = ins;
2030 }
2031
2032 cfg->code_len = (guint8*)code - cfg->native_code;
2033 DEBUG_FUNC_EXIT();
2034 }
2035
2036 void
2037 mono_arch_register_lowlevel_calls (void)
2038 {
2039 }
2040
2041 void
2042 mono_arch_patch_code (MonoMethod *method, MonoDomain *domain, guint8 *code, MonoJumpInfo *ji, MonoCodeManager *dyn_code_mp, gboolean run_cctors)
2043 {
2044 MonoJumpInfo *patch_info;
2045
2046 DEBUG_FUNC_ENTER();
2047 /* FIXME: Move part of this to arch independent code */
2048 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
2049 unsigned char *ip = patch_info->ip.i + code;
2050 gpointer target;
2051
2052 target = mono_resolve_patch_target (method, domain, code, patch_info, run_cctors);
2053 DEBUG (printf ("patch_info->type = %d, target = %p\n", patch_info->type, target));
2054
2055 switch (patch_info->type) {
2056 case MONO_PATCH_INFO_NONE:
2057 case MONO_PATCH_INFO_BB_OVF:
2058 case MONO_PATCH_INFO_EXC_OVF:
2059 continue;
2060
2061 case MONO_PATCH_INFO_IP:
2062 hppa_patch ((guint32 *)ip, ip);
2063 continue;
2064
2065 case MONO_PATCH_INFO_CLASS_INIT: {
2066 break;
2067 }
2068 case MONO_PATCH_INFO_METHOD_JUMP: {
2069 break;
2070 }
2071 case MONO_PATCH_INFO_SWITCH: {
2072 int i;
2073 gpointer *table = (gpointer *)target;
2074 ip += 8;
2075 for (i = 0; i < patch_info->data.table->table_size; i++) {
2076 DEBUG (printf ("Patching switch table, table[%d] = %p\n", i, table[i]));
2077 hppa_ldil (ip, hppa_lsel (table [i]), hppa_r1);
2078 hppa_be_n (ip, hppa_rsel (table [i]), hppa_r1);
2079 }
2080 continue;
2081 }
2082 default:
2083 break;
2084 }
2085 hppa_patch ((guint32 *)ip, target);
2086 }
2087
2088 DEBUG_FUNC_EXIT();
2089 }
2090
2091 void*
2092 mono_arch_instrument_prolog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments)
2093 {
2094 guint32 *code = (guint32*)p;
2095
2096 DEBUG_FUNC_ENTER();
2097
2098 hppa_set (code, cfg->method, hppa_r26);
2099 hppa_copy (code, hppa_r0, hppa_r25); /* NULL sp for now */
2100 hppa_set (code, func, hppa_r1);
2101 hppa_depi (code, 0, 31, 2, hppa_r1);
2102 hppa_ldw (code, 0, hppa_r1, hppa_r1);
2103 hppa_ble (code, 0, hppa_r1);
2104 hppa_copy (code, hppa_r31, hppa_r2);
2105
2106 DEBUG_FUNC_EXIT();
2107 return code;
2108 }
2109
2110 enum {
2111 SAVE_NONE,
2112 SAVE_STRUCT,
2113 SAVE_ONE,
2114 SAVE_TWO,
2115 SAVE_FP
2116 };
2117
2118 void*
2119 mono_arch_instrument_epilog_full (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments, gboolean preserve_argument_registers)
2120 {
2121 guint32 *code = (guint32*)p;
2122 DEBUG_FUNC_ENTER();
2123 #if 0
2124 int save_mode = SAVE_NONE;
2125 MonoMethod *method = cfg->method;
2126
2127 switch (mono_type_get_underlying_type (mono_method_signature (method)->ret)->type) {
2128 case MONO_TYPE_VOID:
2129 /* special case string .ctor icall */
2130 if (strcmp (".ctor", method->name) && method->klass == mono_defaults.string_class)
2131 save_mode = SAVE_ONE;
2132 else
2133 save_mode = SAVE_NONE;
2134 break;
2135 case MONO_TYPE_I8:
2136 case MONO_TYPE_U8:
2137 #ifdef SPARCV9
2138 save_mode = SAVE_ONE;
2139 #else
2140 save_mode = SAVE_TWO;
2141 #endif
2142 break;
2143 case MONO_TYPE_R4:
2144 case MONO_TYPE_R8:
2145 save_mode = SAVE_FP;
2146 break;
2147 case MONO_TYPE_VALUETYPE:
2148 save_mode = SAVE_STRUCT;
2149 break;
2150 default:
2151 save_mode = SAVE_ONE;
2152 break;
2153 }
2154
2155 /* Save the result to the stack and also put it into the output registers */
2156
2157 switch (save_mode) {
2158 case SAVE_TWO:
2159 /* V8 only */
2160 sparc_st_imm (code, sparc_i0, sparc_fp, 68);
2161 sparc_st_imm (code, sparc_i0, sparc_fp, 72);
2162 sparc_mov_reg_reg (code, sparc_i0, sparc_o1);
2163 sparc_mov_reg_reg (code, sparc_i1, sparc_o2);
2164 break;
2165 case SAVE_ONE:
2166 sparc_sti_imm (code, sparc_i0, sparc_fp, ARGS_OFFSET);
2167 sparc_mov_reg_reg (code, sparc_i0, sparc_o1);
2168 break;
2169 case SAVE_FP:
2170 #ifdef SPARCV9
2171 sparc_stdf_imm (code, sparc_f0, sparc_fp, ARGS_OFFSET);
2172 #else
2173 sparc_stdf_imm (code, sparc_f0, sparc_fp, 72);
2174 sparc_ld_imm (code, sparc_fp, 72, sparc_o1);
2175 sparc_ld_imm (code, sparc_fp, 72 + 4, sparc_o2);
2176 #endif
2177 break;
2178 case SAVE_STRUCT:
2179 #ifdef SPARCV9
2180 sparc_mov_reg_reg (code, sparc_i0, sparc_o1);
2181 #else
2182 sparc_ld_imm (code, sparc_fp, 64, sparc_o1);
2183 #endif
2184 break;
2185 case SAVE_NONE:
2186 default:
2187 break;
2188 }
2189
2190 sparc_set (code, cfg->method, sparc_o0);
2191
2192 mono_add_patch_info (cfg, (guint8*)code - cfg->native_code, MONO_PATCH_INFO_ABS, func);
2193 EMIT_CALL ();
2194
2195 /* Restore result */
2196
2197 switch (save_mode) {
2198 case SAVE_TWO:
2199 sparc_ld_imm (code, sparc_fp, 68, sparc_i0);
2200 sparc_ld_imm (code, sparc_fp, 72, sparc_i0);
2201 break;
2202 case SAVE_ONE:
2203 sparc_ldi_imm (code, sparc_fp, ARGS_OFFSET, sparc_i0);
2204 break;
2205 case SAVE_FP:
2206 sparc_lddf_imm (code, sparc_fp, ARGS_OFFSET, sparc_f0);
2207 break;
2208 case SAVE_NONE:
2209 default:
2210 break;
2211 }
2212 #endif
2213 DEBUG_FUNC_EXIT();
2214 return code;
2215 }
2216
2217 /*
2218 * The HPPA stack frame should look like this:
2219 *
2220 * ---------------------
2221 * incoming params area
2222 * ---------------------
2223 * linkage area size = ARGS_OFFSET
2224 * --------------------- fp = psp
2225 * HPPA_STACK_LMF_OFFSET
2226 * ---------------------
2227 * MonoLMF structure or saved registers
2228 * -------------------
2229 * locals size = cfg->stack_offset - cfg->param_area
2230 * ---------------------
2231 * params area size = cfg->param_area - ARGS_OFFSET (aligned)
2232 * ---------------------
2233 * callee linkage area size = ARGS_OFFSET
2234 * --------------------- sp
2235 */
2236 guint8 *
2237 mono_arch_emit_prolog (MonoCompile *cfg)
2238 {
2239 MonoMethod *method = cfg->method;
2240 MonoBasicBlock *bb;
2241 MonoMethodSignature *sig;
2242 MonoInst *inst;
2243 int alloc_size, pos, max_offset, i;
2244 guint8 *code;
2245 CallInfo *cinfo;
2246 int tracing = 0;
2247 int lmf_offset = 0;
2248
2249 DEBUG_FUNC_ENTER();
2250 if (mono_jit_trace_calls != NULL && mono_trace_eval (method))
2251 tracing = 1;
2252
2253 sig = mono_method_signature (method);
2254 cfg->code_size = 512 + sig->param_count * 20;
2255 code = cfg->native_code = g_malloc (cfg->code_size);
2256
2257 /* TODO: enable tail call optimization */
2258 if (1 || cfg->flags & MONO_CFG_HAS_CALLS) {
2259 hppa_stw (code, hppa_r2, -20, hppa_sp);
2260 }
2261
2262 /* locals area */
2263 pos = HPPA_STACK_LMF_OFFSET;
2264
2265 /* figure out how much space we need for spilling */
2266 if (!method->save_lmf) {
2267 /* spill callee-save registers */
2268 guint32 mask = cfg->used_int_regs & MONO_ARCH_CALLEE_SAVED_REGS;
2269 for (i = 0; i < 32; i++) {
2270 if ((1 << i) & mask)
2271 pos += sizeof (gulong);
2272 }
2273 } else {
2274 lmf_offset = pos;
2275 pos += sizeof (MonoLMF);
2276 }
2277
2278 alloc_size = ALIGN_TO (pos + cfg->stack_offset, MONO_ARCH_FRAME_ALIGNMENT);
2279 g_assert ((alloc_size & (MONO_ARCH_FRAME_ALIGNMENT - 1)) == 0);
2280
2281 cfg->stack_usage = alloc_size;
2282
2283 if (alloc_size) {
2284 hppa_copy (code, hppa_r3, hppa_r1);
2285 hppa_copy (code, hppa_sp, hppa_r3);
2286 if (hppa_check_bits (alloc_size, 14))
2287 hppa_stwm (code, hppa_r1, alloc_size, hppa_sp);
2288 else {
2289 hppa_stwm (code, hppa_r1, 8100, hppa_sp);
2290 hppa_addil (code, hppa_lsel (alloc_size - 8100), hppa_sp);
2291 hppa_ldo (code, hppa_rsel (alloc_size - 8100), hppa_r1, hppa_sp);
2292 }
2293 }
2294
2295 /* compute max_offset in order to use short forward jumps
2296 * we always do it on hppa because the immediate displacement
2297 * for jumps is small
2298 */
2299 max_offset = 0;
2300 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2301 MonoInst *ins = bb->code;
2302 bb->max_offset = max_offset;
2303
2304 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
2305 max_offset += 6;
2306
2307 MONO_BB_FOR_EACH_INS (bb, ins)
2308 max_offset += ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
2309 }
2310
2311 DEBUG (printf ("Incoming arguments: \n"));
2312 cinfo = get_call_info (sig, sig->pinvoke);
2313
2314 /* We do this first so that we don't have to worry about the LMF-
2315 * saving code clobbering r28
2316 */
2317 if (cinfo->struct_return)
2318 hppa_stw (code, hppa_r28, cfg->ret->inst_offset, hppa_sp);
2319
2320 /* Save the LMF or the spilled registers */
2321 pos = HPPA_STACK_LMF_OFFSET;
2322 if (!method->save_lmf) {
2323 /* spill callee-save registers */
2324 guint32 mask = cfg->used_int_regs & MONO_ARCH_CALLEE_SAVED_REGS;
2325 for (i = 0; i < 32; i++) {
2326 if ((1 << i) & mask) {
2327 if (i == hppa_r3) {
2328 hppa_ldw (code, 0, hppa_r3, hppa_r1);
2329 hppa_stw (code, hppa_r1, pos, hppa_r3);
2330 } else
2331 hppa_stw (code, i, pos, hppa_r3);
2332 pos += sizeof (gulong);
2333 }
2334 }
2335 } else {
2336 int ofs = lmf_offset + G_STRUCT_OFFSET (MonoLMF, regs);
2337 int reg;
2338
2339 hppa_ldw (code, 0, hppa_r3, hppa_r1);
2340 hppa_stw (code, hppa_r1, ofs, hppa_r3);
2341 ofs += sizeof (gulong);
2342 for (reg = 4; reg < 32; reg++) {
2343 if (HPPA_IS_SAVED_GREG (reg)) {
2344 hppa_stw (code, reg, ofs, hppa_r3);
2345 ofs += sizeof (gulong);
2346 }
2347 }
2348 /* We shouldn't need to save the FP regs.... */
2349 ofs = ALIGN_TO (ofs, sizeof(double));
2350 hppa_set (code, ofs, hppa_r1);
2351 for (reg = 0; reg < 32; reg++) {
2352 if (HPPA_IS_SAVED_FREG (reg)) {
2353 hppa_fstdx (code, reg, hppa_r1, hppa_r3);
2354 hppa_ldo (code, sizeof(double), hppa_r1, hppa_r1);
2355 }
2356 }
2357
2358 /* We also spill the arguments onto the stack, because
2359 * the call to hppa_get_lmf_addr below can clobber them
2360 *
2361 * This goes in the param area that is always allocated
2362 */
2363 ofs = -36;
2364 for (reg = hppa_r26; reg >= hppa_r23; reg--) {
2365 hppa_stw (code, reg, ofs, hppa_sp);
2366 ofs -= 4;
2367 }
2368 }
2369
2370 if (cfg->flags & MONO_CFG_HAS_ALLOCA)
2371 hppa_copy (code, hppa_r30, hppa_r4);
2372
2373 if (method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED) {
2374 hppa_set (code, cfg->domain, hppa_r26);
2375 mono_add_patch_info (cfg, code - cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD, (gpointer)"mono_jit_thread_attach");
2376 hppa_ldil (code, 0, hppa_r1);
2377 hppa_ldo (code, 0, hppa_r1, hppa_r1);
2378 hppa_depi (code, 0, 31, 2, hppa_r1);
2379 hppa_ldw (code, 0, hppa_r1, hppa_r1);
2380 hppa_ble (code, 0, hppa_r1);
2381 hppa_copy (code, hppa_r31, hppa_r2);
2382 }
2383
2384 if (method->save_lmf) {
2385 mono_add_patch_info (cfg, code - cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
2386 (gpointer)"mono_get_lmf_addr");
2387 hppa_ldil (code, 0, hppa_r1);
2388 hppa_ldo (code, 0, hppa_r1, hppa_r1);
2389 hppa_depi (code, 0, 31, 2, hppa_r1);
2390 hppa_ldw (code, 0, hppa_r1, hppa_r1);
2391 hppa_ble (code, 0, hppa_r1);
2392 hppa_copy (code, hppa_r31, hppa_r2);
2393
2394 /* lmf_offset is the offset from the previous stack pointer,
2395 * The pointer to the struct is put in hppa_r22 (new_lmf).
2396 * The callee-saved registers are already in the MonoLMF
2397 * structure
2398 */
2399
2400 /* hppa_r22 = new_lmf (on the stack) */
2401 hppa_ldo (code, lmf_offset, hppa_r3, hppa_r22);
2402 /* lmf_offset is the offset from the previous stack pointer,
2403 */
2404 hppa_stw (code, hppa_r28, G_STRUCT_OFFSET(MonoLMF, lmf_addr), hppa_r22);
2405 /* new_lmf->previous_lmf = *lmf_addr */
2406 hppa_ldw (code, 0, hppa_r28, hppa_r1);
2407 hppa_stw (code, hppa_r1, G_STRUCT_OFFSET(MonoLMF, previous_lmf), hppa_r22);
2408 /* *(lmf_addr) = r22 */
2409 hppa_stw (code, hppa_r22, 0, hppa_r28);
2410 hppa_set (code, method, hppa_r1);
2411 hppa_stw (code, hppa_r1, G_STRUCT_OFFSET(MonoLMF, method), hppa_r22);
2412 hppa_stw (code, hppa_sp, G_STRUCT_OFFSET(MonoLMF, ebp), hppa_r22);
2413 mono_add_patch_info (cfg, code - cfg->native_code, MONO_PATCH_INFO_IP, NULL);
2414 hppa_ldil (code, 0, hppa_r1);
2415 hppa_ldo (code, 0, hppa_r1, hppa_r1);
2416 hppa_stw (code, hppa_r1, G_STRUCT_OFFSET(MonoLMF, eip), hppa_r22);
2417
2418 /* Now reload the arguments from the stack */
2419 hppa_ldw (code, -36, hppa_sp, hppa_r26);
2420 hppa_ldw (code, -40, hppa_sp, hppa_r25);
2421 hppa_ldw (code, -44, hppa_sp, hppa_r24);
2422 hppa_ldw (code, -48, hppa_sp, hppa_r23);
2423 }
2424
2425 /* load arguments allocated to register from the stack */
2426 pos = 0;
2427
2428 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
2429 ArgInfo *ainfo = cinfo->args + i;
2430 inst = cfg->args [pos];
2431
2432 if (inst->opcode == OP_REGVAR) {
2433 /* Want the argument in a register */
2434 switch (ainfo->storage) {
2435 case ArgInIReg:
2436 if (ainfo->reg != inst->dreg)
2437 hppa_copy (code, ainfo->reg, inst->dreg);
2438 DEBUG (printf ("Argument %d assigned to register %s\n", pos, mono_arch_regname (inst->dreg)));
2439 break;
2440
2441 case ArgInIRegPair:
2442 if (ainfo->reg != inst->dreg) {
2443 hppa_copy (code, ainfo->reg, inst->dreg);
2444 hppa_copy (code, ainfo->reg + 1, inst->dreg + 1);
2445 }
2446 DEBUG (printf ("Argument %d assigned to register %s, %s\n", pos, mono_arch_regname (inst->dreg), mono_arch_regname (inst->dreg + 1)));
2447 break;
2448
2449 case ArgInFReg:
2450 if (ainfo->reg != inst->dreg)
2451 hppa_fcpy (code, HPPA_FP_FMT_SGL, ainfo->reg, inst->dreg);
2452 DEBUG (printf ("Argument %d assigned to single register %s\n", pos, mono_arch_fregname (inst->dreg)));
2453 break;
2454
2455 case ArgInDReg:
2456 if (ainfo->reg != inst->dreg)
2457 hppa_fcpy (code, HPPA_FP_FMT_DBL, ainfo->reg, inst->dreg);
2458 DEBUG (printf ("Argument %d assigned to double register %s\n", pos, mono_arch_fregname (inst->dreg)));
2459 break;
2460
2461 case ArgOnStack:
2462 switch (ainfo->size) {
2463 case 1:
2464 hppa_ldb (code, ainfo->offset, hppa_r3, inst->dreg);
2465 break;
2466 case 2:
2467 hppa_ldh (code, ainfo->offset, hppa_r3, inst->dreg);
2468 break;
2469 case 4:
2470 hppa_ldw (code, ainfo->offset, hppa_r3, inst->dreg);
2471 break;
2472 default:
2473 g_assert_not_reached ();
2474 }
2475
2476
2477 DEBUG (printf ("Argument %d loaded from the stack [%s - %d]\n", pos, mono_arch_regname (hppa_r3), -ainfo->offset));
2478 break;
2479
2480 default:
2481 g_assert_not_reached ();
2482 }
2483 }
2484 else {
2485 /* Want the argument on the stack */
2486 switch (ainfo->storage)
2487 {
2488 case ArgInIReg: {
2489 int off, reg;
2490 DEBUG (printf ("Argument %d stored from register %s to stack [%s + %d]\n", pos, mono_arch_regname (ainfo->reg), mono_arch_regname (inst->inst_basereg), inst->inst_offset));
2491 if (hppa_check_bits (inst->inst_offset, 14)) {
2492 off = inst->inst_offset;
2493 reg = inst->inst_basereg;
2494 }
2495 else {
2496 hppa_set (code, inst->inst_offset, hppa_r1);
2497 hppa_add (code, hppa_r1, inst->inst_basereg, hppa_r1);
2498 off = 0;
2499 reg = hppa_r1;
2500 }
2501 switch (ainfo->size)
2502 {
2503 case 1:
2504 hppa_stb (code, ainfo->reg, off, reg);
2505 break;
2506 case 2:
2507 hppa_sth (code, ainfo->reg, off, reg);
2508 break;
2509 case 4:
2510 hppa_stw (code, ainfo->reg, off, reg);
2511 break;
2512 default:
2513 g_assert_not_reached ();
2514 }
2515 break;
2516 }
2517 case ArgInIRegPair:
2518 DEBUG (printf ("Argument %d stored from register (%s,%s) to stack [%s + %d]\n", pos, mono_arch_regname (ainfo->reg), mono_arch_regname (ainfo->reg+1), mono_arch_regname (inst->inst_basereg), inst->inst_offset));
2519 if (hppa_check_bits (inst->inst_offset + 4, 14)) {
2520 hppa_stw (code, ainfo->reg, inst->inst_offset, inst->inst_basereg);
2521 hppa_stw (code, ainfo->reg + 1, inst->inst_offset + 4, inst->inst_basereg);
2522 }
2523 else {
2524 hppa_ldo (code, inst->inst_offset, inst->inst_basereg, hppa_r1);
2525 hppa_stw (code, ainfo->reg, 0, hppa_r1);
2526 hppa_stw (code, ainfo->reg + 1, 4, hppa_r1);
2527 }
2528 break;
2529
2530 case ArgInFReg:
2531 DEBUG (printf ("Argument %d (float) stored from register %s to stack [%s + %d]\n", pos, mono_arch_fregname (ainfo->reg), mono_arch_regname (inst->inst_basereg), inst->inst_offset));
2532 hppa_ldo (code, inst->inst_offset, inst->inst_basereg, hppa_r1);
2533 hppa_fstwx (code, ainfo->reg, 0, hppa_r0, hppa_r1);
2534 break;
2535
2536 case ArgInDReg:
2537 DEBUG (printf ("Argument %d (double) stored from register %s to stack [%s + %d]\n", pos, mono_arch_fregname (ainfo->reg), mono_arch_regname (inst->inst_basereg), inst->inst_offset));
2538 hppa_ldo (code, inst->inst_offset, inst->inst_basereg, hppa_r1);
2539 hppa_fstdx (code, ainfo->reg, hppa_r0, hppa_r1);
2540 break;
2541
2542 case ArgOnStack:
2543 DEBUG (printf ("Argument %d copied from [%s - %d] to [%s + %d] (size=%d)\n", pos, mono_arch_regname (hppa_r3), -ainfo->offset, mono_arch_regname (inst->inst_basereg), inst->inst_offset, ainfo->size));
2544 if (inst->inst_offset != ainfo->offset ||
2545 inst->inst_basereg != hppa_r3)
2546 code = emit_memcpy (code, inst->inst_offset, inst->inst_basereg, ainfo->offset, hppa_r3, ainfo->size);
2547 break;
2548
2549 default:
2550 g_assert_not_reached ();
2551 }
2552 }
2553
2554 pos++;
2555 }
2556
2557
2558 if (tracing)
2559 code = mono_arch_instrument_prolog (cfg, mono_trace_enter_method, code, TRUE);
2560
2561 if (getenv("HPPA_BREAK")) {
2562 *(guint32*)code = 0x00010004;
2563 code += 4;
2564 }
2565
2566 cfg->code_len = code - cfg->native_code;
2567 g_assert (cfg->code_len < cfg->code_size);
2568 g_free (cinfo);
2569
2570 DEBUG_FUNC_EXIT();
2571 return code;
2572 }
2573
2574
2575 void
2576 mono_arch_emit_epilog (MonoCompile *cfg)
2577 {
2578 MonoMethod *method = cfg->method;
2579 MonoMethodSignature *sig;
2580 guint32 *code;
2581 int max_epilog_size = 16 + 20 * 4;
2582 int pos;
2583
2584 DEBUG_FUNC_ENTER();
2585 sig = mono_method_signature (cfg->method);
2586 if (cfg->method->save_lmf)
2587 max_epilog_size += 128;
2588
2589 if (mono_jit_trace_calls != NULL)
2590 max_epilog_size += 50;
2591
2592 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
2593 max_epilog_size += 50;
2594
2595 while (cfg->code_len + max_epilog_size > (cfg->code_size - 16)) {
2596 cfg->code_size *= 2;
2597 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
2598 cfg->stat_code_reallocs++;
2599 }
2600
2601 code = (guint32*)(cfg->native_code + cfg->code_len);
2602
2603 if (mono_jit_trace_calls != NULL && mono_trace_eval (method))
2604 code = mono_arch_instrument_epilog (cfg, mono_trace_leave_method, code, TRUE);
2605
2606 pos = HPPA_STACK_LMF_OFFSET;
2607 if (cfg->method->save_lmf) {
2608 int reg;
2609 hppa_ldo (code, pos, hppa_r3, hppa_r22);
2610 hppa_ldw (code, G_STRUCT_OFFSET(MonoLMF, previous_lmf), hppa_r22, hppa_r21);
2611 hppa_ldw (code, G_STRUCT_OFFSET(MonoLMF, lmf_addr), hppa_r22, hppa_r20);
2612 hppa_stw (code, hppa_r21, G_STRUCT_OFFSET(MonoLMF, previous_lmf), hppa_r20);
2613
2614 pos += G_STRUCT_OFFSET(MonoLMF, regs) + sizeof (gulong);
2615 /* We skip the restore of r3 here, it is restored from the
2616 * stack anyway. This makes the code a bit easier.
2617 */
2618 for (reg = 4; reg < 31; reg++) {
2619 if (HPPA_IS_SAVED_GREG (reg)) {
2620 hppa_ldw (code, pos, hppa_r3, reg);
2621 pos += sizeof(gulong);
2622 }
2623 }
2624
2625 pos = ALIGN_TO (pos, sizeof (double));
2626 hppa_set (code, pos, hppa_r1);
2627 for (reg = 0; reg < 31; reg++) {
2628 if (HPPA_IS_SAVED_FREG (reg)) {
2629 hppa_flddx (code, hppa_r1, hppa_r3, reg);
2630 hppa_ldo (code, sizeof (double), hppa_r1, hppa_r1);
2631 pos += sizeof (double);
2632 }
2633 }
2634 } else {
2635 guint32 mask = cfg->used_int_regs & MONO_ARCH_CALLEE_SAVED_REGS;
2636 int i;
2637 for (i = 0; i < 32; i++) {
2638 if (i == hppa_r3)
2639 continue;
2640 if ((1 << i) & mask) {
2641 hppa_ldw (code, pos, hppa_r3, i);
2642 pos += sizeof (gulong);
2643 }
2644 }
2645 }
2646
2647 if (sig->ret->type != MONO_TYPE_VOID &&
2648 mono_type_to_stind (sig->ret) == CEE_STOBJ) {
2649 CallInfo *cinfo = get_call_info (sig, sig->pinvoke);
2650
2651 switch (cinfo->ret.storage) {
2652 case ArgInIReg:
2653 hppa_ldw (code, cfg->ret->inst_offset, hppa_sp, hppa_r28);
2654 hppa_ldw (code, 0, hppa_r28, hppa_r28);
2655 break;
2656 case ArgInIRegPair:
2657 hppa_ldw (code, cfg->ret->inst_offset, hppa_sp, hppa_r28);
2658 hppa_ldw (code, 4, hppa_r28, hppa_r29);
2659 hppa_ldw (code, 0, hppa_r28, hppa_r28);
2660 break;
2661 case ArgOnStack:
2662 /* Nothing to do */
2663 break;
2664 default:
2665 g_assert_not_reached ();
2666 }
2667 g_free (cinfo);
2668 }
2669
2670 if (1 || cfg->flags & MONO_CFG_HAS_CALLS)
2671 hppa_ldw (code, -20, hppa_r3, hppa_r2);
2672 hppa_ldo (code, 64, hppa_r3, hppa_sp);
2673 hppa_bv (code, hppa_r0, hppa_r2);
2674 hppa_ldwm (code, -64, hppa_sp, hppa_r3);
2675
2676 cfg->code_len = (guint8*)code - cfg->native_code;
2677
2678 g_assert (cfg->code_len < cfg->code_size);
2679 DEBUG_FUNC_EXIT();
2680 }
2681
2682 /* remove once throw_exception_by_name is eliminated */
2683 static int
2684 exception_id_by_name (const char *name)
2685 {
2686 if (strcmp (name, "IndexOutOfRangeException") == 0)
2687 return MONO_EXC_INDEX_OUT_OF_RANGE;
2688 if (strcmp (name, "OverflowException") == 0)
2689 return MONO_EXC_OVERFLOW;
2690 if (strcmp (name, "ArithmeticException") == 0)
2691 return MONO_EXC_ARITHMETIC;
2692 if (strcmp (name, "DivideByZeroException") == 0)
2693 return MONO_EXC_DIVIDE_BY_ZERO;
2694 if (strcmp (name, "InvalidCastException") == 0)
2695 return MONO_EXC_INVALID_CAST;
2696 if (strcmp (name, "NullReferenceException") == 0)
2697 return MONO_EXC_NULL_REF;
2698 if (strcmp (name, "ArrayTypeMismatchException") == 0)
2699 return MONO_EXC_ARRAY_TYPE_MISMATCH;
2700 g_error ("Unknown intrinsic exception %s\n", name);
2701 return 0;
2702 }
2703
2704 void
2705 mono_arch_emit_exceptions (MonoCompile *cfg)
2706 {
2707 MonoJumpInfo *patch_info;
2708 int i;
2709 guint8 *code;
2710 const guint8* exc_throw_pos [MONO_EXC_INTRINS_NUM] = {NULL};
2711 guint8 exc_throw_found [MONO_EXC_INTRINS_NUM] = {0};
2712 int max_epilog_size = 50;
2713
2714 DEBUG_FUNC_ENTER();
2715
2716 /* count the number of exception infos */
2717
2718 /*
2719 * make sure we have enough space for exceptions
2720 */
2721 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
2722 switch (patch_info->type) {
2723 case MONO_PATCH_INFO_BB_OVF:
2724 g_assert_not_reached ();
2725 break;
2726
2727 case MONO_PATCH_INFO_EXC_OVF: {
2728 const MonoOvfJump *ovfj = patch_info->data.target;
2729 max_epilog_size += 8;
2730 i = exception_id_by_name (ovfj->data.exception);
2731 if (!exc_throw_found [i]) {
2732 max_epilog_size += 24;
2733 exc_throw_found [i] = TRUE;
2734 }
2735 break;
2736 }
2737
2738 case MONO_PATCH_INFO_EXC:
2739 i = exception_id_by_name (patch_info->data.target);
2740 if (!exc_throw_found [i]) {
2741 max_epilog_size += 24;
2742 exc_throw_found [i] = TRUE;
2743 }
2744 break;
2745
2746 default:
2747 break;
2748 }
2749 }
2750
2751 while (cfg->code_len + max_epilog_size > (cfg->code_size - 16)) {
2752 cfg->code_size *= 2;
2753 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
2754 cfg->stat_code_reallocs++;
2755 }
2756
2757 code = cfg->native_code + cfg->code_len;
2758
2759 /* add code to raise exceptions */
2760 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
2761 switch (patch_info->type) {
2762 case MONO_PATCH_INFO_BB_OVF: {
2763 /* TODO */
2764 break;
2765 }
2766 case MONO_PATCH_INFO_EXC_OVF: {
2767 const MonoOvfJump *ovfj = patch_info->data.target;
2768 MonoJumpInfo *newji;
2769 unsigned char *ip = patch_info->ip.i + cfg->native_code;
2770 unsigned char *stub = code;
2771
2772 /* Patch original call, point it at the stub */
2773 hppa_patch ((guint32 *)ip, code);
2774
2775 /* Write the stub */
2776 /* SUBTLE: this has to be PIC, because the code block
2777 * can be relocated
2778 */
2779 hppa_bl_n (code, 8, hppa_r0);
2780 hppa_nop (code);
2781
2782 /* Add a patch info to patch the stub to point to the exception code */
2783 newji = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
2784 newji->type = MONO_PATCH_INFO_EXC;
2785 newji->ip.i = stub - cfg->native_code;
2786 newji->data.target = ovfj->data.exception;
2787 newji->next = patch_info->next;
2788 patch_info->next = newji;
2789 break;
2790 }
2791 case MONO_PATCH_INFO_EXC: {
2792 unsigned char *ip = patch_info->ip.i + cfg->native_code;
2793 i = exception_id_by_name (patch_info->data.target);
2794 if (exc_throw_pos [i]) {
2795 hppa_patch ((guint32 *)ip, exc_throw_pos [i]);
2796 patch_info->type = MONO_PATCH_INFO_NONE;
2797 break;
2798 } else {
2799 exc_throw_pos [i] = code;
2800 }
2801 hppa_patch ((guint32 *)ip, code);
2802 hppa_set (code, patch_info->data.target, hppa_r26);
2803 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
2804 patch_info->data.name = "mono_arch_throw_exception_by_name";
2805 patch_info->ip.i = code - cfg->native_code;
2806
2807 /* Assume the caller has set r2, we can't set it
2808 * here based on ip, because the caller may
2809 * be relocated (also the "ip" may be from an overflow
2810 * stub)
2811 */
2812 hppa_ldil (code, 0, hppa_r1);
2813 hppa_ldo (code, 0, hppa_r1, hppa_r1);
2814 hppa_bv (code, hppa_r0, hppa_r1);
2815 hppa_nop (code);
2816 break;
2817 }
2818 default:
2819 /* do nothing */
2820 break;
2821 }
2822 }
2823
2824 cfg->code_len = code - cfg->native_code;
2825
2826 g_assert (cfg->code_len < cfg->code_size);
2827 DEBUG_FUNC_EXIT();
2828 }
2829
2830 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
2831
2832 #error "--with-sigaltstack=yes not supported on hppa"
2833
2834 #endif
2835
2836 void
2837 mono_arch_finish_init (void)
2838 {
2839 }
2840
2841 void
2842 mono_arch_free_jit_tls_data (MonoJitTlsData *tls)
2843 {
2844 }
2845
2846 void
2847 mono_arch_emit_this_vret_args (MonoCompile *cfg, MonoCallInst *inst, int this_reg, int this_type, int vt_reg)
2848 {
2849 /* add the this argument */
2850 if (this_reg != -1) {
2851 MonoInst *this;
2852 MONO_INST_NEW (cfg, this, OP_MOVE);
2853 this->type = this_type;
2854 this->sreg1 = this_reg;
2855 this->dreg = mono_alloc_ireg (cfg);
2856 mono_bblock_add_inst (cfg->cbb, this);
2857 mono_call_inst_add_outarg_reg (cfg, inst, this->dreg, hppa_r26, FALSE);
2858 }
2859
2860 if (vt_reg != -1) {
2861 MonoInst *vtarg;
2862 MONO_INST_NEW (cfg, vtarg, OP_MOVE);
2863 vtarg->type = STACK_MP;
2864 vtarg->sreg1 = vt_reg;
2865 vtarg->dreg = mono_alloc_ireg (cfg);
2866 mono_bblock_add_inst (cfg->cbb, vtarg);
2867 mono_call_inst_add_outarg_reg (cfg, inst, vtarg->dreg, hppa_r28, FALSE);
2868 }
2869 }
2870
2871
2872 MonoInst*
2873 mono_arch_get_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args)
2874 {
2875 MonoInst *ins = NULL;
2876 DEBUG_FUNC_ENTER();
2877 DEBUG_FUNC_EXIT();
2878
2879 return ins;
2880 }
2881
2882 /*
2883 * mono_arch_get_argument_info:
2884 * @csig: a method signature
2885 * @param_count: the number of parameters to consider
2886 * @arg_info: an array to store the result infos
2887 *
2888 * Gathers information on parameters such as size, alignment and
2889 * padding. arg_info should be large enought to hold param_count + 1 entries.
2890 *
2891 * Returns the size of the activation frame.
2892 */
2893 int
2894 mono_arch_get_argument_info (MonoMethodSignature *csig, int param_count, MonoJitArgumentInfo *arg_info)
2895 {
2896 int k, align;
2897 CallInfo *cinfo;
2898 ArgInfo *ainfo;
2899
2900 DEBUG_FUNC_ENTER();
2901 cinfo = get_call_info (csig, FALSE);
2902
2903 if (csig->hasthis) {
2904 ainfo = &cinfo->args [0];
2905 arg_info [0].offset = ainfo->offset;
2906 }
2907
2908 for (k = 0; k < param_count; k++) {
2909 ainfo = &cinfo->args [k + csig->hasthis];
2910
2911 arg_info [k + 1].offset = ainfo->offset;
2912 arg_info [k + 1].size = mono_type_size (csig->params [k], &align);
2913 }
2914
2915 g_free (cinfo);
2916 DEBUG_FUNC_EXIT();
2917 }
2918
2919 gboolean
2920 mono_arch_print_tree (MonoInst *tree, int arity)
2921 {
2922 return 0;
2923 }
2924
2925 MonoInst* mono_arch_get_domain_intrinsic (MonoCompile* cfg)
2926 {
2927 return NULL;
2928 }
2929
2930 gpointer
2931 mono_arch_context_get_int_reg (MonoContext *ctx, int reg)
2932 {
2933 /* FIXME: implement */
2934 g_assert_not_reached ();
2935 }
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