2 * emit-x86.c: Support functions for emitting x86 code
5 * Dietmar Maurer (dietmar@ximian.com)
6 * Miguel de Icaza (miguel@ximian.com)
8 * (C) 2001 Ximian, Inc.
14 #include <mono/metadata/assembly.h>
15 #include <mono/metadata/loader.h>
16 #include <mono/metadata/cil-coff.h>
17 #include <mono/metadata/tabledefs.h>
18 #include <mono/metadata/class.h>
19 #include <mono/metadata/debug-helpers.h>
20 #include <mono/metadata/mono-endian.h>
21 #include <mono/arch/x86/x86-codegen.h>
22 #include <mono/metadata/profiler-private.h>
29 //#define DEBUG_REGALLOC
32 enter_method (MonoMethod *method, char *ebp)
38 printf ("ENTER: %s.%s::%s\n(", method->klass->name_space,
39 method->klass->name, method->name);
42 if (((int)ebp & 3) != 0) {
43 g_error ("unaligned stack detected (%p)", ebp);
48 if (ISSTRUCT (method->signature->ret)) {
51 g_assert (!method->signature->ret->byref);
53 size = mono_type_stack_size (method->signature->ret, &align);
55 printf ("VALUERET:%p, ", *((gpointer *)ebp));
56 ebp += sizeof (gpointer);
59 if (method->signature->hasthis) {
60 if (method->klass->valuetype) {
61 printf ("value:%p, ", *((gpointer *)ebp));
63 o = *((MonoObject **)ebp);
67 class = o->vtable->klass;
69 if (class == mono_defaults.string_class) {
70 printf ("this:[STRING:%p:%s], ", o, mono_string_to_utf8 ((MonoString *)o));
72 printf ("this:%p[%s.%s], ", o, class->name_space, class->name);
75 ebp += sizeof (gpointer);
78 for (i = 0; i < method->signature->param_count; ++i) {
79 MonoType *type = method->signature->params [i];
81 size = mono_type_stack_size (type, &align);
84 printf ("[BYREF:%p], ", *((gpointer *)ebp));
85 } else switch (type->type) {
87 case MONO_TYPE_BOOLEAN:
97 printf ("%d, ", *((int *)(ebp)));
99 case MONO_TYPE_STRING: {
100 MonoString *s = *((MonoString **)ebp);
102 g_assert (((MonoObject *)s)->vtable->klass == mono_defaults.string_class);
103 printf ("[STRING:%p:%s], ", s, mono_string_to_utf8 (s));
105 printf ("[STRING:null], ");
108 case MONO_TYPE_CLASS:
109 case MONO_TYPE_OBJECT: {
110 o = *((MonoObject **)ebp);
112 class = o->vtable->klass;
114 if (class == mono_defaults.string_class) {
115 printf ("[STRING:%p:%s], ", o, mono_string_to_utf8 ((MonoString *)o));
116 } else if (class == mono_defaults.int32_class) {
117 printf ("[INT32:%p:%d], ", o, *(gint32 *)((char *)o + sizeof (MonoObject)));
119 printf ("[%s.%s:%p], ", class->name_space, class->name, o);
121 printf ("%p, ", *((gpointer *)(ebp)));
126 case MONO_TYPE_FNPTR:
127 case MONO_TYPE_ARRAY:
128 case MONO_TYPE_SZARRAY:
129 printf ("%p, ", *((gpointer *)(ebp)));
132 printf ("%lld, ", *((gint64 *)(ebp)));
135 printf ("%f, ", *((float *)(ebp)));
138 printf ("%f, ", *((double *)(ebp)));
140 case MONO_TYPE_VALUETYPE:
142 for (j = 0; j < size; j++)
143 printf ("%02x,", *((guint8*)ebp +j));
150 g_assert (align == 4 || align == 8);
151 ebp += size + align - 1;
152 ebp = (gpointer)((unsigned)ebp & ~(align - 1));
159 leave_method (MonoMethod *method, int edx, int eax, double test)
163 printf ("LEAVE: %s.%s::%s ", method->klass->name_space,
164 method->klass->name, method->name);
166 switch (method->signature->ret->type) {
169 case MONO_TYPE_BOOLEAN:
171 printf ("TRUE:%d", eax);
185 printf ("EAX=%d", eax);
187 case MONO_TYPE_STRING: {
188 MonoString *s = (MonoString *)eax;
191 g_assert (((MonoObject *)s)->vtable->klass == mono_defaults.string_class);
192 printf ("[STRING:%p:%s]", s, mono_string_to_utf8 (s));
194 printf ("[STRING:null], ");
197 case MONO_TYPE_OBJECT: {
198 MonoObject *o = (MonoObject *)eax;
201 if (o->vtable->klass == mono_defaults.boolean_class) {
202 printf ("[BOOLEAN:%p:%d]", o, *((guint8 *)o + sizeof (MonoObject)));
203 } else if (o->vtable->klass == mono_defaults.int32_class) {
204 printf ("[INT32:%p:%d]", o, *((gint32 *)((char *)o + sizeof (MonoObject))));
206 printf ("[%s.%s:%p]", o->vtable->klass->name_space, o->vtable->klass->name, o);
208 printf ("[OBJECT:%p]", o);
212 case MONO_TYPE_CLASS:
214 case MONO_TYPE_FNPTR:
215 case MONO_TYPE_ARRAY:
216 case MONO_TYPE_SZARRAY:
217 printf ("EAX=%p", (gpointer)eax);
220 *((gint32 *)&l) = eax;
221 *((gint32 *)&l + 1) = edx;
222 printf ("EAX/EDX=%lld", l);
225 printf ("FP=%f\n", test);
228 printf ("(unknown return type)");
235 * arch_emit_prologue:
236 * @cfg: pointer to status information
238 * Emits the function prolog.
241 arch_emit_prologue (MonoFlowGraph *cfg)
243 MonoMethod *method = cfg->method;
244 MonoMethodHeader *header = ((MonoMethodNormal *)method)->header;
247 x86_push_reg (cfg->code, X86_EBP);
248 x86_mov_reg_reg (cfg->code, X86_EBP, X86_ESP, 4);
250 if (cfg->locals_size)
251 x86_alu_reg_imm (cfg->code, X86_SUB, X86_ESP, cfg->locals_size);
253 if (mono_regset_reg_used (cfg->rs, X86_EBX))
254 x86_push_reg (cfg->code, X86_EBX);
256 if (mono_regset_reg_used (cfg->rs, X86_EDI))
257 x86_push_reg (cfg->code, X86_EDI);
259 if (mono_regset_reg_used (cfg->rs, X86_ESI))
260 x86_push_reg (cfg->code, X86_ESI);
262 if (mono_jit_trace_calls) {
263 x86_push_reg (cfg->code, X86_EBP);
264 x86_push_imm (cfg->code, cfg->method);
265 x86_mov_reg_imm (cfg->code, X86_EAX, enter_method);
266 x86_call_reg (cfg->code, X86_EAX);
267 x86_alu_reg_imm (cfg->code, X86_ADD, X86_ESP, 8);
269 if (mono_jit_profile) {
270 x86_push_imm (cfg->code, cfg->method);
271 x86_mov_reg_imm (cfg->code, X86_EAX, mono_profiler_method_enter);
272 x86_call_reg (cfg->code, X86_EAX);
273 x86_alu_reg_imm (cfg->code, X86_ADD, X86_ESP, 4);
276 /* initialize local vars */
277 if (header->num_locals) {
279 if (header->init_locals) {
280 int offset = g_array_index (cfg->varinfo, MonoVarInfo,
281 cfg->locals_start_index + header->num_locals - 1).offset;
284 if (size == 1 || size == 2 || size == 4) {
285 x86_mov_membase_imm (cfg->code, X86_EBP, offset, 0, size);
293 if (!mono_regset_reg_used (cfg->rs, X86_EDI))
294 x86_push_reg (cfg->code, X86_EDI);
295 x86_lea_membase (cfg->code, X86_EDI, X86_EBP, offset);
296 x86_alu_reg_reg (cfg->code, X86_XOR, X86_EAX, X86_EAX);
297 x86_mov_reg_imm (cfg->code, X86_ECX, i);
299 x86_prefix (cfg->code, X86_REP_PREFIX);
300 x86_stosl (cfg->code);
301 for (i = 0; i < j; i++)
302 x86_stosb (cfg->code);
303 if (!mono_regset_reg_used (cfg->rs, X86_EDI))
304 x86_pop_reg (cfg->code, X86_EDI);
308 x86_mov_membase_imm (cfg->code, X86_EBP, offset, 0, 2);
309 x86_mov_membase_imm (cfg->code, X86_EBP, offset + 2, 0, 1);
314 /* we always need to initialize object pointers */
316 for (i = 0; i < header->num_locals; ++i) {
317 MonoType *t = header->locals [i];
318 int offset = g_array_index (cfg->varinfo, MonoVarInfo, cfg->locals_start_index + i).offset;
321 x86_mov_membase_imm (cfg->code, X86_EBP, offset, 0, 4);
326 case MONO_TYPE_STRING:
327 case MONO_TYPE_CLASS:
328 case MONO_TYPE_ARRAY:
329 case MONO_TYPE_SZARRAY:
330 case MONO_TYPE_OBJECT:
331 x86_mov_membase_imm (cfg->code, X86_EBP, offset, 0, 4);
341 * arch_emit_epilogue:
342 * @cfg: pointer to status information
344 * Emits the function epilog.
347 arch_emit_epilogue (MonoFlowGraph *cfg)
350 * note: with trace and profiling the value on the FP stack may get clobbered.
352 if (mono_jit_trace_calls) {
353 x86_fld_reg (cfg->code, 0);
354 x86_alu_reg_imm (cfg->code, X86_SUB, X86_ESP, 8);
355 x86_fst_membase (cfg->code, X86_ESP, 0, TRUE, TRUE);
356 x86_push_reg (cfg->code, X86_EAX);
357 x86_push_reg (cfg->code, X86_EDX);
358 x86_push_imm (cfg->code, cfg->method);
359 x86_mov_reg_imm (cfg->code, X86_EAX, leave_method);
360 x86_call_reg (cfg->code, X86_EAX);
361 x86_alu_reg_imm (cfg->code, X86_ADD, X86_ESP, 4);
362 x86_pop_reg (cfg->code, X86_EDX);
363 x86_pop_reg (cfg->code, X86_EAX);
364 x86_alu_reg_imm (cfg->code, X86_ADD, X86_ESP, 8);
366 if (mono_jit_profile) {
367 x86_push_reg (cfg->code, X86_EAX);
368 x86_push_reg (cfg->code, X86_EDX);
369 x86_push_imm (cfg->code, cfg->method);
370 x86_mov_reg_imm (cfg->code, X86_EAX, mono_profiler_method_leave);
371 x86_call_reg (cfg->code, X86_EAX);
372 x86_alu_reg_imm (cfg->code, X86_ADD, X86_ESP, 4);
373 x86_pop_reg (cfg->code, X86_EDX);
374 x86_pop_reg (cfg->code, X86_EAX);
377 if (mono_regset_reg_used (cfg->rs, X86_ESI))
378 x86_pop_reg (cfg->code, X86_ESI);
380 if (mono_regset_reg_used (cfg->rs, X86_EDI))
381 x86_pop_reg (cfg->code, X86_EDI);
383 if (mono_regset_reg_used (cfg->rs, X86_EBX))
384 x86_pop_reg (cfg->code, X86_EBX);
386 x86_leave (cfg->code);
391 mono_label_cfg (MonoFlowGraph *cfg)
395 for (i = 0; i < cfg->block_count; i++) {
396 GPtrArray *forest = cfg->bblocks [i].forest;
399 if (!cfg->bblocks [i].reached) /* unreachable code */
404 for (j = 0; j < top; j++) {
405 MBTree *t1 = (MBTree *) g_ptr_array_index (forest, j);
408 mbstate = mono_burg_label (t1, cfg);
412 if (mono_debug_handle)
414 g_warning ("tree does not match");
415 mono_print_ctree (t1); printf ("\n\n");
417 mono_print_forest (forest);
418 g_assert_not_reached ();
425 tree_allocate_regs (MBTree *tree, int goal, MonoRegSet *rs, guint8 exclude_mask)
428 int ern = mono_burg_rule (tree->state, goal);
429 const guint16 *nts = mono_burg_nts [ern];
430 guint8 left_exclude_mask = 0, right_exclude_mask = 0;
433 #ifdef DEBUG_REGALLOC
434 printf ("tree_allocate_regs start %d %08x %d %d\n", tree->op, rs->free_mask, goal,
435 (nts [0] && kids [0] == tree));
438 mono_burg_kids (tree, ern, kids);
444 exclude_mask |= (1 << X86_ECX);
445 left_exclude_mask |= (1 << X86_ECX);
448 case MB_TERM_MUL_OVF:
449 case MB_TERM_MUL_OVF_UN:
454 if (goal == MB_NTERM_reg) {
455 left_exclude_mask |= (1 << X86_EDX);
456 right_exclude_mask |= (1 << X86_EDX) | (1 << X86_EAX);
463 if (nts [0] && kids [0] == tree) {
465 if (!tree_allocate_regs (kids [0], nts [0], rs, exclude_mask))
467 /* special case reg: coni4 */
468 if (goal == MB_NTERM_reg) {
469 if (tree->reg1 == -1)
470 tree->reg1 = mono_regset_alloc_reg (rs, -1, exclude_mask);
471 if (tree->reg1 == -1)
483 if (nts [1]) { /* two kids */
485 if (nts [2]) /* we cant handle tree kids */
486 g_assert_not_reached ();
488 if (!tree_allocate_regs (kids [0], nts [0], rs, left_exclude_mask))
493 if (!tree_allocate_regs (kids [1], nts [1], rs, right_exclude_mask)) {
495 #ifdef DEBUG_REGALLOC
496 printf ("tree_allocate_regs try 1 failed %d %d %d %d\n",
497 nts [1], kids [1]->reg1,
498 kids [1]->reg2,kids [1]->reg3);
502 if (kids [0]->reg1 != -1)
503 right_exclude_mask |= 1 << kids [0]->reg1;
504 if (kids [0]->reg2 != -1)
505 right_exclude_mask |= 1 << kids [0]->reg2;
506 if (kids [0]->reg3 != -1)
507 right_exclude_mask |= 1 << kids [0]->reg3;
509 mono_regset_free_reg (rs, kids [0]->reg1);
510 mono_regset_free_reg (rs, kids [0]->reg2);
511 mono_regset_free_reg (rs, kids [0]->reg3);
513 kids [0]->spilled = 1;
515 if (!tree_allocate_regs (kids [1], nts [1], rs, right_exclude_mask)) {
516 #ifdef DEBUG_REGALLOC
517 printf ("tree_allocate_regs try 2 failed\n");
521 #ifdef DEBUG_REGALLOC
522 printf ("tree_allocate_regs try 2 succesfull\n");
526 } else { /* one kid */
527 if (!tree_allocate_regs (kids [0], nts [0], rs, left_exclude_mask))
533 for (i = 0; nts [i]; i++) {
534 mono_regset_free_reg (rs, kids [i]->reg1);
535 mono_regset_free_reg (rs, kids [i]->reg2);
536 mono_regset_free_reg (rs, kids [i]->reg3);
539 tree->emit = mono_burg_func [ern];
542 case MB_TERM_CALL_I4:
543 case MB_TERM_CALL_I8:
544 case MB_TERM_CALL_R8:
545 // case MB_TERM_CALL_VOID :
546 if ((tree->reg1 = mono_regset_alloc_reg (rs, X86_EAX, exclude_mask)) == -1)
548 if ((tree->reg2 = mono_regset_alloc_reg (rs, X86_EDX, exclude_mask)) == -1)
550 if ((tree->reg3 = mono_regset_alloc_reg (rs, X86_ECX, exclude_mask)) == -1)
558 case MB_TERM_MUL_OVF_UN:
563 if ((tree->reg1 = mono_regset_alloc_reg (rs, X86_EAX, exclude_mask)) == -1)
565 if ((tree->reg2 = mono_regset_alloc_reg (rs, X86_EDX, exclude_mask)) == -1)
569 if ((tree->reg1 = mono_regset_alloc_reg (rs, -1, exclude_mask)) == -1)
577 case MB_TERM_MUL_OVF:
578 case MB_TERM_MUL_OVF_UN:
583 if ((tree->reg1 = mono_regset_alloc_reg (rs, X86_EAX, exclude_mask)) == -1)
585 if ((tree->reg2 = mono_regset_alloc_reg (rs, X86_EDX, exclude_mask)) == -1)
589 if ((tree->reg1 = mono_regset_alloc_reg (rs, -1, exclude_mask)) == -1)
591 if ((tree->reg2 = mono_regset_alloc_reg (rs, -1, exclude_mask)) == -1)
597 /* fixme: allocate floating point registers */
601 if (tree->op == MB_TERM_ADD) {
602 if ((tree->reg1 = mono_regset_alloc_reg (rs, tree->left->reg1, exclude_mask)) == -1)
604 if ((tree->reg2 = mono_regset_alloc_reg (rs, tree->right->reg1, exclude_mask)) == -1)
610 if (tree->op == MB_TERM_ADD) {
611 if ((tree->reg1 = mono_regset_alloc_reg (rs, tree->left->reg1, exclude_mask)) == -1)
617 if (tree->op == MB_TERM_SHL ||
618 tree->op == MB_TERM_MUL) {
619 if ((tree->reg1 = mono_regset_alloc_reg (rs, tree->left->reg1, exclude_mask)) == -1)
628 #ifdef DEBUG_REGALLOC
629 printf ("tree_allocate_regs end %d %08x\n", tree->op, rs->free_mask);
635 arch_allocate_regs (MonoFlowGraph *cfg)
639 for (i = 0; i < cfg->block_count; i++) {
640 GPtrArray *forest = cfg->bblocks [i].forest;
643 if (!cfg->bblocks [i].reached) /* unreachable code */
648 for (j = 0; j < top; j++) {
649 MBTree *t1 = (MBTree *) g_ptr_array_index (forest, j);
650 #ifdef DEBUG_REGALLOC
651 printf ("arch_allocate_regs start %d:%d %08x\n", i, j, cfg->rs->free_mask);
653 if (!tree_allocate_regs (t1, 1, cfg->rs, 0)) {
654 mono_print_ctree (t1);
655 g_error ("register allocation failed");
658 #ifdef DEBUG_REGALLOC
659 printf ("arch_allocate_regs end %d:%d %08x\n", i, j, cfg->rs->free_mask);
661 g_assert (cfg->rs->free_mask == 0xffffffff);
667 tree_emit (int goal, MonoFlowGraph *cfg, MBTree *tree)
670 int ern = mono_burg_rule (tree->state, goal);
671 const guint16 *nts = mono_burg_nts [ern];
675 mono_burg_kids (tree, ern, kids);
680 g_assert_not_reached ();
682 tree_emit (nts [0], cfg, kids [0]);
684 if (kids [0]->spilled) {
686 #ifdef DEBUG_REGALLOC
687 printf ("SPILL_REGS %d %03x %s.%s:%s\n",
688 nts [0], cfg->code - cfg->start,
689 cfg->method->klass->name_space,
690 cfg->method->klass->name, cfg->method->name);
692 mono_print_ctree (kids [0]);printf ("\n\n");
695 /* fixme: we should allocate a spill location instead
696 of using the stack to save values */
697 if (kids [0]->reg1 != -1)
698 x86_push_reg (cfg->code, kids [0]->reg1);
699 if (kids [0]->reg2 != -1)
700 x86_push_reg (cfg->code, kids [0]->reg2);
701 if (kids [0]->reg3 != -1)
702 x86_push_reg (cfg->code, kids [0]->reg3);
705 tree_emit (nts [1], cfg, kids [1]);
707 if (kids [0]->spilled) {
709 #ifdef DEBUG_REGALLOC
710 printf ("RELOAD_REGS %03x %s.%s:%s\n",
711 cfg->code - cfg->start,
712 cfg->method->klass->name_space,
713 cfg->method->klass->name, cfg->method->name);
716 if (kids [0]->reg3 != -1)
717 x86_pop_reg (cfg->code, kids [0]->reg3);
718 if (kids [0]->reg2 != -1)
719 x86_pop_reg (cfg->code, kids [0]->reg2);
720 if (kids [0]->reg1 != -1)
721 x86_pop_reg (cfg->code, kids [0]->reg1);
724 tree_emit (nts [0], cfg, kids [0]);
728 tree->addr = offset = cfg->code - cfg->start;
730 // we assume an instruction uses a maximum of 128 bytes
731 if ((cfg->code_size - offset) <= 128) {
732 int add = MIN (cfg->code_size, 128);
733 cfg->code_size += add;
734 mono_jit_stats.code_reallocs++;
735 cfg->start = g_realloc (cfg->start, cfg->code_size);
736 g_assert (cfg->start);
737 cfg->code = cfg->start + offset;
740 if ((emit = mono_burg_func [ern]))
743 g_assert ((cfg->code - cfg->start) < cfg->code_size);
747 mono_emit_cfg (MonoFlowGraph *cfg)
751 for (i = 0; i < cfg->block_count; i++) {
752 MonoBBlock *bb = &cfg->bblocks [i];
753 GPtrArray *forest = bb->forest;
756 if (!bb->reached) /* unreachable code */
761 bb->addr = cfg->code - cfg->start;
763 for (j = 0; j < top; j++) {
764 MBTree *t1 = (MBTree *) g_ptr_array_index (forest, j);
766 tree_emit (1, cfg, t1);
770 cfg->epilog = cfg->code - cfg->start;
774 mono_compute_branches (MonoFlowGraph *cfg)
782 for (j = 0; j < cfg->block_count; j++) {
783 MonoBBlock *bb = &cfg->bblocks [j];
784 GPtrArray *forest = bb->forest;
787 if (!bb->reached) /* unreachable code */
792 for (i = 0; i < top; i++) {
793 MBTree *t1 = (MBTree *) g_ptr_array_index (forest, i);
795 if (t1->op == MB_TERM_SWITCH) {
796 MonoBBlock **jt = (MonoBBlock **)t1->data.p;
797 guint32 *rt = (guint32 *)t1->data.p;
798 int m = *((guint32 *)t1->data.p) + 1;
801 for (k = 1; k <= m; k++)
802 rt [k] = (int)(jt [k]->addr + cfg->start);
804 /* emit the switch instruction again to update addresses */
805 cfg->code = cfg->start + t1->addr;
806 ((MBEmitFunc)t1->emit) (t1, cfg);
813 for (ji = cfg->jump_info; ji; ji = ji->next) {
814 gpointer *ip = GUINT_TO_POINTER (GPOINTER_TO_UINT (ji->ip) + cfg->start);
818 case MONO_JUMP_INFO_BB:
819 target = ji->data.bb->addr + cfg->start;
820 *ip = target - GPOINTER_TO_UINT(ip) - 4;
822 case MONO_JUMP_INFO_ABS:
823 target = ji->data.target;
824 *ip = target - GPOINTER_TO_UINT(ip) - 4;
826 case MONO_JUMP_INFO_EPILOG:
827 target = cfg->epilog + cfg->start;
828 *ip = target - GPOINTER_TO_UINT(ip) - 4;
830 case MONO_JUMP_INFO_IP:
834 g_assert_not_reached ();
840 mono_add_jump_info (MonoFlowGraph *cfg, gpointer ip, MonoJumpInfoType type, gpointer target)
842 MonoJumpInfo *ji = mono_mempool_alloc (cfg->mp, sizeof (MonoJumpInfo));
845 ji->ip = GUINT_TO_POINTER (GPOINTER_TO_UINT (ip) - GPOINTER_TO_UINT (cfg->start));
846 ji->data.target = target;
847 ji->next = cfg->jump_info;
853 match_debug_method (MonoMethod* method)
855 GList *tmp = mono_debug_methods;
857 for (; tmp; tmp = tmp->next) {
858 if (mono_method_desc_full_match (tmp->data, method))
865 * arch_compile_method:
866 * @method: pointer to the method info
868 * JIT compilation of a single method.
870 * Returns: a pointer to the newly created code.
873 arch_compile_method (MonoMethod *method)
875 MonoDomain *target_domain, *domain = mono_domain_get ();
878 GHashTable *jit_code_hash;
880 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
881 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
883 method->info = arch_create_native_wrapper (method);
887 if (mono_jit_share_code)
888 target_domain = mono_root_domain;
890 target_domain = domain;
892 jit_code_hash = target_domain->jit_code_hash;
894 if ((addr = g_hash_table_lookup (jit_code_hash, method))) {
895 mono_jit_stats.methods_lookups++;
899 mono_jit_stats.methods_compiled++;
901 if (mono_jit_trace_calls || mono_jit_dump_asm || mono_jit_dump_forest) {
902 printf ("Start JIT compilation of %s.%s:%s\n", method->klass->name_space,
903 method->klass->name, method->name);
906 if (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) {
907 const char *name = method->name;
909 gboolean delegate = FALSE;
911 if (method->klass->parent == mono_defaults.multicastdelegate_class)
914 if (delegate && *name == '.' && (strcmp (name, ".ctor") == 0)) {
915 addr = (gpointer)mono_delegate_ctor;
916 } else if (delegate && *name == 'I' && (strcmp (name, "Invoke") == 0)) {
919 addr = arch_get_delegate_invoke (method, &size);
921 if (mono_jit_dump_asm) {
922 char *id = g_strdup_printf ("%s.%s_%s", method->klass->name_space,
923 method->klass->name, method->name);
924 mono_disassemble_code (addr, size, id);
927 } else if (delegate && *name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
928 code = addr = g_malloc (32);
929 x86_push_imm (code, method);
930 x86_call_code (code, arch_begin_invoke);
931 x86_alu_reg_imm (code, X86_ADD, X86_ESP, 4);
933 g_assert ((code - addr) <= 32);
934 } else if (delegate && *name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
935 /* this can raise exceptions, so we need a wrapper to save/restore LMF */
936 method->addr = (gpointer)arch_end_invoke;
937 addr = arch_create_native_wrapper (method);
939 mono_profiler_method_end_jit (method, MONO_PROFILE_FAILED);
940 if (mono_debug_handle)
943 g_error ("Don't know how to exec runtime method %s.%s::%s",
944 method->klass->name_space, method->klass->name, method->name);
948 MonoMethodHeader *header = ((MonoMethodNormal *)method)->header;
951 gulong code_size_ratio;
953 mono_profiler_method_jit (method);
955 ji = mono_mempool_alloc0 (target_domain->mp, sizeof (MonoJitInfo));
957 mp = mono_mempool_new ();
959 cfg = mono_cfg_new (method, mp);
961 mono_analyze_flow (cfg);
963 mono_profiler_method_end_jit (method, MONO_PROFILE_FAILED);
967 mono_analyze_stack (cfg);
969 mono_profiler_method_end_jit (method, MONO_PROFILE_FAILED);
973 cfg->rs = mono_regset_new (X86_NREG);
974 mono_regset_reserve_reg (cfg->rs, X86_ESP);
975 mono_regset_reserve_reg (cfg->rs, X86_EBP);
977 /* we can use this regs for global register allocation */
978 mono_regset_reserve_reg (cfg->rs, X86_EBX);
979 mono_regset_reserve_reg (cfg->rs, X86_ESI);
981 cfg->code_size = MAX (header->code_size * 5, 256);
982 cfg->start = cfg->code = g_malloc (cfg->code_size);
984 mono_debug_last_breakpoint_address = cfg->code;
986 if (match_debug_method (method) || mono_debug_insert_breakpoint)
987 x86_breakpoint (cfg->code);
988 else if (mono_debug_handle)
991 if (mono_debug_insert_breakpoint > 0)
992 mono_debug_insert_breakpoint--;
994 if (mono_jit_dump_forest) {
996 printf ("FOREST %s.%s:%s\n", method->klass->name_space,
997 method->klass->name, method->name);
998 for (i = 0; i < cfg->block_count; i++) {
999 printf ("BLOCK %d:\n", i);
1000 mono_print_forest (cfg->bblocks [i].forest);
1004 mono_label_cfg (cfg);
1006 mono_profiler_method_end_jit (method, MONO_PROFILE_FAILED);
1010 /* align to 8 byte boundary */
1011 cfg->locals_size += 7;
1012 cfg->locals_size &= ~7;
1014 arch_allocate_regs (cfg);
1016 arch_emit_prologue (cfg);
1017 cfg->prologue_end = cfg->code - cfg->start;
1018 mono_emit_cfg (cfg);
1019 arch_emit_epilogue (cfg);
1020 cfg->epilogue_end = cfg->code - cfg->start;
1024 mono_jit_stats.allocated_code_size += cfg->code_size;
1026 code_size_ratio = cfg->code - cfg->start;
1027 if (code_size_ratio > mono_jit_stats.biggest_method_size) {
1028 mono_jit_stats.biggest_method_size = code_size_ratio;
1029 mono_jit_stats.biggest_method = method;
1031 code_size_ratio = (code_size_ratio * 100) / header->code_size;
1032 if (code_size_ratio > mono_jit_stats.max_code_size_ratio) {
1033 mono_jit_stats.max_code_size_ratio = code_size_ratio;
1034 mono_jit_stats.max_ratio_method = method;
1037 mono_compute_branches (cfg);
1039 if (mono_jit_dump_asm) {
1040 char *id = g_strdup_printf ("%s.%s_%s", method->klass->name_space,
1041 method->klass->name, method->name);
1042 mono_disassemble_code (cfg->start, cfg->code - cfg->start, id);
1045 if (mono_debug_handle)
1046 mono_debug_add_method (mono_debug_handle, cfg);
1048 ji->code_size = cfg->code - cfg->start;
1049 ji->used_regs = cfg->rs->used_mask;
1050 ji->method = method;
1051 ji->code_start = addr;
1053 mono_jit_stats.native_code_size += ji->code_size;
1055 if (header->num_clauses) {
1056 int i, start_block, end_block;
1058 ji->num_clauses = header->num_clauses;
1059 ji->clauses = mono_mempool_alloc0 (target_domain->mp,
1060 sizeof (MonoJitExceptionInfo) * header->num_clauses);
1062 for (i = 0; i < header->num_clauses; i++) {
1063 MonoExceptionClause *ec = &header->clauses [i];
1064 MonoJitExceptionInfo *ei = &ji->clauses [i];
1066 ei->flags = ec->flags;
1067 ei->token_or_filter = ec->token_or_filter;
1069 g_assert (cfg->bcinfo [ec->try_offset].is_block_start);
1070 start_block = cfg->bcinfo [ec->try_offset].block_id;
1071 end_block = cfg->bcinfo [ec->try_offset + ec->try_len].block_id;
1072 g_assert (cfg->bcinfo [ec->try_offset + ec->try_len].is_block_start);
1074 ei->try_start = cfg->start + cfg->bblocks [start_block].addr;
1075 ei->try_end = cfg->start + cfg->bblocks [end_block].addr;
1077 g_assert (cfg->bcinfo [ec->handler_offset].is_block_start);
1078 start_block = cfg->bcinfo [ec->handler_offset].block_id;
1079 ei->handler_start = cfg->start + cfg->bblocks [start_block].addr;
1081 //printf ("TEST %x %x %x\n", ei->try_start, ei->try_end, ei->handler_start);
1085 mono_jit_info_table_add (target_domain, ji);
1087 mono_regset_free (cfg->rs);
1089 mono_cfg_free (cfg);
1091 mono_mempool_destroy (mp);
1093 mono_profiler_method_end_jit (method, MONO_PROFILE_OK);
1096 if (mono_jit_trace_calls || mono_jit_dump_asm || mono_jit_dump_forest) {
1097 printf ("END JIT compilation of %s.%s:%s %p %p\n", method->klass->name_space,
1098 method->klass->name, method->name, method, addr);
1101 g_hash_table_insert (jit_code_hash, method, addr);