12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "asm/assembler.inline.hpp"
26 #include "c1/c1_Compilation.hpp"
27 #include "c1/c1_Instruction.hpp"
28 #include "c1/c1_InstructionPrinter.hpp"
29 #include "c1/c1_LIRAssembler.hpp"
30 #include "c1/c1_MacroAssembler.hpp"
31 #include "c1/c1_ValueStack.hpp"
32 #include "compiler/compilerDefinitions.inline.hpp"
33 #include "compiler/oopMap.hpp"
34 #include "runtime/os.hpp"
35 #include "runtime/vm_version.hpp"
36
37 void LIR_Assembler::patching_epilog(PatchingStub* patch, LIR_PatchCode patch_code, Register obj, CodeEmitInfo* info) {
38 // We must have enough patching space so that call can be inserted.
39 // We cannot use fat nops here, since the concurrent code rewrite may transiently
40 // create the illegal instruction sequence.
41 while ((intx) _masm->pc() - (intx) patch->pc_start() < NativeGeneralJump::instruction_size) {
42 _masm->nop();
43 }
44 info->set_force_reexecute();
45 patch->install(_masm, patch_code, obj, info);
46 append_code_stub(patch);
47
48 #ifdef ASSERT
49 Bytecodes::Code code = info->scope()->method()->java_code_at_bci(info->stack()->bci());
50 if (patch->id() == PatchingStub::access_field_id) {
51 switch (code) {
52 case Bytecodes::_putstatic:
53 case Bytecodes::_getstatic:
54 case Bytecodes::_putfield:
100 //---------------------------------------------------------------
101
102
103 LIR_Assembler::LIR_Assembler(Compilation* c):
104 _masm(c->masm())
105 , _compilation(c)
106 , _frame_map(c->frame_map())
107 , _current_block(nullptr)
108 , _pending_non_safepoint(nullptr)
109 , _pending_non_safepoint_offset(0)
110 , _immediate_oops_patched(0)
111 {
112 _slow_case_stubs = new CodeStubList();
113 }
114
115
116 LIR_Assembler::~LIR_Assembler() {
117 // The unwind handler label may be unnbound if this destructor is invoked because of a bail-out.
118 // Reset it here to avoid an assertion.
119 _unwind_handler_entry.reset();
120 }
121
122
123 void LIR_Assembler::check_codespace() {
124 CodeSection* cs = _masm->code_section();
125 if (cs->remaining() < (int)(NOT_LP64(1*K)LP64_ONLY(2*K))) {
126 BAILOUT("CodeBuffer overflow");
127 }
128 }
129
130
131 void LIR_Assembler::append_code_stub(CodeStub* stub) {
132 _immediate_oops_patched += stub->nr_immediate_oops_patched();
133 _slow_case_stubs->append(stub);
134 }
135
136 void LIR_Assembler::emit_stubs(CodeStubList* stub_list) {
137 for (int m = 0; m < stub_list->length(); m++) {
138 CodeStub* s = stub_list->at(m);
139
311 }
312 #endif /* PRODUCT */
313 }
314 }
315
316 #ifdef ASSERT
317 void LIR_Assembler::check_no_unbound_labels() {
318 CHECK_BAILOUT();
319
320 for (int i = 0; i < _branch_target_blocks.length() - 1; i++) {
321 if (!_branch_target_blocks.at(i)->label()->is_bound()) {
322 tty->print_cr("label of block B%d is not bound", _branch_target_blocks.at(i)->block_id());
323 assert(false, "unbound label");
324 }
325 }
326 }
327 #endif
328
329 //----------------------------------debug info--------------------------------
330
331
332 void LIR_Assembler::add_debug_info_for_branch(CodeEmitInfo* info) {
333 int pc_offset = code_offset();
334 flush_debug_info(pc_offset);
335 info->record_debug_info(compilation()->debug_info_recorder(), pc_offset);
336 if (info->exception_handlers() != nullptr) {
337 compilation()->add_exception_handlers_for_pco(pc_offset, info->exception_handlers());
338 }
339 }
340
341
342 void LIR_Assembler::add_call_info(int pc_offset, CodeEmitInfo* cinfo) {
343 flush_debug_info(pc_offset);
344 cinfo->record_debug_info(compilation()->debug_info_recorder(), pc_offset);
345 if (cinfo->exception_handlers() != nullptr) {
346 compilation()->add_exception_handlers_for_pco(pc_offset, cinfo->exception_handlers());
347 }
348 }
349
350 static ValueStack* debug_info(Instruction* ins) {
351 StateSplit* ss = ins->as_StateSplit();
352 if (ss != nullptr) return ss->state();
353 return ins->state_before();
354 }
355
356 void LIR_Assembler::process_debug_info(LIR_Op* op) {
357 Instruction* src = op->source();
358 if (src == nullptr) return;
359 int pc_offset = code_offset();
360 if (_pending_non_safepoint == src) {
361 _pending_non_safepoint_offset = pc_offset;
362 return;
363 }
364 ValueStack* vstack = debug_info(src);
468 case lir_static_call:
469 case lir_dynamic_call:
470 call(op, relocInfo::static_call_type);
471 break;
472 case lir_optvirtual_call:
473 call(op, relocInfo::opt_virtual_call_type);
474 break;
475 case lir_icvirtual_call:
476 ic_call(op);
477 break;
478 default:
479 fatal("unexpected op code: %s", op->name());
480 break;
481 }
482
483 // JSR 292
484 // Record if this method has MethodHandle invokes.
485 if (op->is_method_handle_invoke()) {
486 compilation()->set_has_method_handle_invokes(true);
487 }
488 }
489
490
491 void LIR_Assembler::emit_opLabel(LIR_OpLabel* op) {
492 _masm->bind (*(op->label()));
493 }
494
495
496 void LIR_Assembler::emit_op1(LIR_Op1* op) {
497 switch (op->code()) {
498 case lir_move:
499 if (op->move_kind() == lir_move_volatile) {
500 assert(op->patch_code() == lir_patch_none, "can't patch volatiles");
501 volatile_move_op(op->in_opr(), op->result_opr(), op->type(), op->info());
502 } else {
503 move_op(op->in_opr(), op->result_opr(), op->type(),
504 op->patch_code(), op->info(),
505 op->move_kind() == lir_move_wide);
506 }
507 break;
567 } else {
568 Unimplemented();
569 }
570 break;
571 }
572
573 case lir_monaddr:
574 monitor_address(op->in_opr()->as_constant_ptr()->as_jint(), op->result_opr());
575 break;
576
577 case lir_unwind:
578 unwind_op(op->in_opr());
579 break;
580
581 default:
582 Unimplemented();
583 break;
584 }
585 }
586
587
588 void LIR_Assembler::emit_op0(LIR_Op0* op) {
589 switch (op->code()) {
590 case lir_nop:
591 assert(op->info() == nullptr, "not supported");
592 _masm->nop();
593 break;
594
595 case lir_label:
596 Unimplemented();
597 break;
598
599 case lir_std_entry: {
600 // init offsets
601 offsets()->set_value(CodeOffsets::OSR_Entry, _masm->offset());
602 if (needs_icache(compilation()->method())) {
603 int offset = check_icache();
604 offsets()->set_value(CodeOffsets::Entry, offset);
605 }
606 _masm->align(CodeEntryAlignment);
607 offsets()->set_value(CodeOffsets::Verified_Entry, _masm->offset());
608 _masm->verified_entry(compilation()->directive()->BreakAtExecuteOption);
609 if (needs_clinit_barrier_on_entry(compilation()->method())) {
610 clinit_barrier(compilation()->method());
611 }
612 build_frame();
613 offsets()->set_value(CodeOffsets::Frame_Complete, _masm->offset());
614 break;
615 }
616
617 case lir_osr_entry:
618 offsets()->set_value(CodeOffsets::OSR_Entry, _masm->offset());
619 osr_entry();
620 break;
621
622 #ifdef IA32
623 case lir_fpop_raw:
624 fpop();
625 break;
626 #endif // IA32
627
628 case lir_breakpoint:
629 breakpoint();
630 break;
631
632 case lir_membar:
633 membar();
634 break;
635
648 case lir_membar_storestore:
649 membar_storestore();
650 break;
651
652 case lir_membar_loadstore:
653 membar_loadstore();
654 break;
655
656 case lir_membar_storeload:
657 membar_storeload();
658 break;
659
660 case lir_get_thread:
661 get_thread(op->result_opr());
662 break;
663
664 case lir_on_spin_wait:
665 on_spin_wait();
666 break;
667
668 default:
669 ShouldNotReachHere();
670 break;
671 }
672 }
673
674
675 void LIR_Assembler::emit_op2(LIR_Op2* op) {
676 switch (op->code()) {
677 case lir_cmp:
678 if (op->info() != nullptr) {
679 assert(op->in_opr1()->is_address() || op->in_opr2()->is_address(),
680 "shouldn't be codeemitinfo for non-address operands");
681 add_debug_info_for_null_check_here(op->info()); // exception possible
682 }
683 comp_op(op->condition(), op->in_opr1(), op->in_opr2(), op);
684 break;
685
686 case lir_cmp_l2i:
687 case lir_cmp_fd2i:
733
734 default:
735 Unimplemented();
736 break;
737 }
738 }
739
740 void LIR_Assembler::emit_op4(LIR_Op4* op) {
741 switch(op->code()) {
742 case lir_cmove:
743 cmove(op->condition(), op->in_opr1(), op->in_opr2(), op->result_opr(), op->type(), op->in_opr3(), op->in_opr4());
744 break;
745
746 default:
747 Unimplemented();
748 break;
749 }
750 }
751
752 void LIR_Assembler::build_frame() {
753 _masm->build_frame(initial_frame_size_in_bytes(), bang_size_in_bytes());
754 }
755
756
757 void LIR_Assembler::move_op(LIR_Opr src, LIR_Opr dest, BasicType type, LIR_PatchCode patch_code, CodeEmitInfo* info, bool wide) {
758 if (src->is_register()) {
759 if (dest->is_register()) {
760 assert(patch_code == lir_patch_none && info == nullptr, "no patching and info allowed here");
761 reg2reg(src, dest);
762 } else if (dest->is_stack()) {
763 assert(patch_code == lir_patch_none && info == nullptr, "no patching and info allowed here");
764 reg2stack(src, dest, type);
765 } else if (dest->is_address()) {
766 reg2mem(src, dest, type, patch_code, info, wide);
767 } else {
768 ShouldNotReachHere();
769 }
770
771 } else if (src->is_stack()) {
772 assert(patch_code == lir_patch_none && info == nullptr, "no patching and info allowed here");
773 if (dest->is_register()) {
|
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "asm/assembler.inline.hpp"
26 #include "c1/c1_Compilation.hpp"
27 #include "c1/c1_Instruction.hpp"
28 #include "c1/c1_InstructionPrinter.hpp"
29 #include "c1/c1_LIRAssembler.hpp"
30 #include "c1/c1_MacroAssembler.hpp"
31 #include "c1/c1_ValueStack.hpp"
32 #include "ci/ciInlineKlass.hpp"
33 #include "compiler/compilerDefinitions.inline.hpp"
34 #include "compiler/oopMap.hpp"
35 #include "runtime/os.hpp"
36 #include "runtime/sharedRuntime.hpp"
37 #include "runtime/vm_version.hpp"
38
39 void LIR_Assembler::patching_epilog(PatchingStub* patch, LIR_PatchCode patch_code, Register obj, CodeEmitInfo* info) {
40 // We must have enough patching space so that call can be inserted.
41 // We cannot use fat nops here, since the concurrent code rewrite may transiently
42 // create the illegal instruction sequence.
43 while ((intx) _masm->pc() - (intx) patch->pc_start() < NativeGeneralJump::instruction_size) {
44 _masm->nop();
45 }
46 info->set_force_reexecute();
47 patch->install(_masm, patch_code, obj, info);
48 append_code_stub(patch);
49
50 #ifdef ASSERT
51 Bytecodes::Code code = info->scope()->method()->java_code_at_bci(info->stack()->bci());
52 if (patch->id() == PatchingStub::access_field_id) {
53 switch (code) {
54 case Bytecodes::_putstatic:
55 case Bytecodes::_getstatic:
56 case Bytecodes::_putfield:
102 //---------------------------------------------------------------
103
104
105 LIR_Assembler::LIR_Assembler(Compilation* c):
106 _masm(c->masm())
107 , _compilation(c)
108 , _frame_map(c->frame_map())
109 , _current_block(nullptr)
110 , _pending_non_safepoint(nullptr)
111 , _pending_non_safepoint_offset(0)
112 , _immediate_oops_patched(0)
113 {
114 _slow_case_stubs = new CodeStubList();
115 }
116
117
118 LIR_Assembler::~LIR_Assembler() {
119 // The unwind handler label may be unnbound if this destructor is invoked because of a bail-out.
120 // Reset it here to avoid an assertion.
121 _unwind_handler_entry.reset();
122 _verified_inline_entry.reset();
123 }
124
125
126 void LIR_Assembler::check_codespace() {
127 CodeSection* cs = _masm->code_section();
128 if (cs->remaining() < (int)(NOT_LP64(1*K)LP64_ONLY(2*K))) {
129 BAILOUT("CodeBuffer overflow");
130 }
131 }
132
133
134 void LIR_Assembler::append_code_stub(CodeStub* stub) {
135 _immediate_oops_patched += stub->nr_immediate_oops_patched();
136 _slow_case_stubs->append(stub);
137 }
138
139 void LIR_Assembler::emit_stubs(CodeStubList* stub_list) {
140 for (int m = 0; m < stub_list->length(); m++) {
141 CodeStub* s = stub_list->at(m);
142
314 }
315 #endif /* PRODUCT */
316 }
317 }
318
319 #ifdef ASSERT
320 void LIR_Assembler::check_no_unbound_labels() {
321 CHECK_BAILOUT();
322
323 for (int i = 0; i < _branch_target_blocks.length() - 1; i++) {
324 if (!_branch_target_blocks.at(i)->label()->is_bound()) {
325 tty->print_cr("label of block B%d is not bound", _branch_target_blocks.at(i)->block_id());
326 assert(false, "unbound label");
327 }
328 }
329 }
330 #endif
331
332 //----------------------------------debug info--------------------------------
333
334 void LIR_Assembler::add_debug_info_for_branch(CodeEmitInfo* info) {
335 int pc_offset = code_offset();
336 flush_debug_info(pc_offset);
337 info->record_debug_info(compilation()->debug_info_recorder(), pc_offset);
338 if (info->exception_handlers() != nullptr) {
339 compilation()->add_exception_handlers_for_pco(pc_offset, info->exception_handlers());
340 }
341 }
342
343 void LIR_Assembler::add_call_info(int pc_offset, CodeEmitInfo* cinfo, bool maybe_return_as_fields) {
344 flush_debug_info(pc_offset);
345 cinfo->record_debug_info(compilation()->debug_info_recorder(), pc_offset, maybe_return_as_fields);
346 if (cinfo->exception_handlers() != nullptr) {
347 compilation()->add_exception_handlers_for_pco(pc_offset, cinfo->exception_handlers());
348 }
349 }
350
351 static ValueStack* debug_info(Instruction* ins) {
352 StateSplit* ss = ins->as_StateSplit();
353 if (ss != nullptr) return ss->state();
354 return ins->state_before();
355 }
356
357 void LIR_Assembler::process_debug_info(LIR_Op* op) {
358 Instruction* src = op->source();
359 if (src == nullptr) return;
360 int pc_offset = code_offset();
361 if (_pending_non_safepoint == src) {
362 _pending_non_safepoint_offset = pc_offset;
363 return;
364 }
365 ValueStack* vstack = debug_info(src);
469 case lir_static_call:
470 case lir_dynamic_call:
471 call(op, relocInfo::static_call_type);
472 break;
473 case lir_optvirtual_call:
474 call(op, relocInfo::opt_virtual_call_type);
475 break;
476 case lir_icvirtual_call:
477 ic_call(op);
478 break;
479 default:
480 fatal("unexpected op code: %s", op->name());
481 break;
482 }
483
484 // JSR 292
485 // Record if this method has MethodHandle invokes.
486 if (op->is_method_handle_invoke()) {
487 compilation()->set_has_method_handle_invokes(true);
488 }
489
490 ciInlineKlass* vk = nullptr;
491 if (op->maybe_return_as_fields(&vk)) {
492 int offset = store_inline_type_fields_to_buf(vk);
493 add_call_info(offset, op->info(), true);
494 }
495 }
496
497
498 void LIR_Assembler::emit_opLabel(LIR_OpLabel* op) {
499 _masm->bind (*(op->label()));
500 }
501
502
503 void LIR_Assembler::emit_op1(LIR_Op1* op) {
504 switch (op->code()) {
505 case lir_move:
506 if (op->move_kind() == lir_move_volatile) {
507 assert(op->patch_code() == lir_patch_none, "can't patch volatiles");
508 volatile_move_op(op->in_opr(), op->result_opr(), op->type(), op->info());
509 } else {
510 move_op(op->in_opr(), op->result_opr(), op->type(),
511 op->patch_code(), op->info(),
512 op->move_kind() == lir_move_wide);
513 }
514 break;
574 } else {
575 Unimplemented();
576 }
577 break;
578 }
579
580 case lir_monaddr:
581 monitor_address(op->in_opr()->as_constant_ptr()->as_jint(), op->result_opr());
582 break;
583
584 case lir_unwind:
585 unwind_op(op->in_opr());
586 break;
587
588 default:
589 Unimplemented();
590 break;
591 }
592 }
593
594 void LIR_Assembler::add_scalarized_entry_info(int pc_offset) {
595 flush_debug_info(pc_offset);
596 DebugInformationRecorder* debug_info = compilation()->debug_info_recorder();
597 // The VEP and VIEP(RO) of a C1-compiled method call buffer_inline_args_xxx()
598 // before doing any argument shuffling. This call may cause GC. When GC happens,
599 // all the parameters are still as passed by the caller, so we just use
600 // map->set_include_argument_oops() inside frame::sender_for_compiled_frame(RegisterMap* map).
601 // There's no need to build a GC map here.
602 OopMap* oop_map = new OopMap(0, 0);
603 debug_info->add_safepoint(pc_offset, oop_map);
604 DebugToken* locvals = debug_info->create_scope_values(nullptr); // FIXME is this needed (for Java debugging to work properly??)
605 DebugToken* expvals = debug_info->create_scope_values(nullptr); // FIXME is this needed (for Java debugging to work properly??)
606 DebugToken* monvals = debug_info->create_monitor_values(nullptr); // FIXME: need testing with synchronized method
607 bool reexecute = false;
608 bool return_oop = false; // This flag will be ignored since it used only for C2 with escape analysis.
609 bool rethrow_exception = false;
610 bool is_method_handle_invoke = false;
611 debug_info->describe_scope(pc_offset, methodHandle(), method(), 0, reexecute, rethrow_exception, is_method_handle_invoke, return_oop, false, locvals, expvals, monvals);
612 debug_info->end_safepoint(pc_offset);
613 }
614
615 // The entries points of C1-compiled methods can have the following types:
616 // (1) Methods with no inline type args
617 // (2) Methods with inline type receiver but no inline type args
618 // VIEP_RO is the same as VIEP
619 // (3) Methods with non-inline type receiver and some inline type args
620 // VIEP_RO is the same as VEP
621 // (4) Methods with inline type receiver and other inline type args
622 // Separate VEP, VIEP and VIEP_RO
623 //
624 // (1) (2) (3) (4)
625 // UEP/UIEP: VEP: UEP: UEP:
626 // check_icache pack receiver check_icache check_icache
627 // VEP/VIEP/VIEP_RO jump to VIEP VEP/VIEP_RO: VIEP_RO:
628 // body UEP/UIEP: pack inline args pack inline args (except receiver)
629 // check_icache jump to VIEP jump to VIEP
630 // VIEP/VIEP_RO UIEP: VEP:
631 // body check_icache pack all inline args
632 // VIEP: jump to VIEP
633 // body UIEP:
634 // check_icache
635 // VIEP:
636 // body
637 void LIR_Assembler::emit_std_entries() {
638 offsets()->set_value(CodeOffsets::OSR_Entry, _masm->offset());
639
640 _masm->align(CodeEntryAlignment);
641 const CompiledEntrySignature* ces = compilation()->compiled_entry_signature();
642 if (ces->has_scalarized_args()) {
643 assert(InlineTypePassFieldsAsArgs && method()->get_Method()->has_scalarized_args(), "must be");
644 CodeOffsets::Entries ro_entry_type = ces->c1_inline_ro_entry_type();
645
646 // UEP: check icache and fall-through
647 if (ro_entry_type != CodeOffsets::Verified_Inline_Entry) {
648 offsets()->set_value(CodeOffsets::Entry, _masm->offset());
649 if (needs_icache(method())) {
650 check_icache();
651 }
652 }
653
654 // VIEP_RO: pack all value parameters, except the receiver
655 if (ro_entry_type == CodeOffsets::Verified_Inline_Entry_RO) {
656 emit_std_entry(CodeOffsets::Verified_Inline_Entry_RO, ces);
657 }
658
659 // VEP: pack all value parameters
660 _masm->align(CodeEntryAlignment);
661 emit_std_entry(CodeOffsets::Verified_Entry, ces);
662
663 // UIEP: check icache and fall-through
664 _masm->align(CodeEntryAlignment);
665 offsets()->set_value(CodeOffsets::Inline_Entry, _masm->offset());
666 if (ro_entry_type == CodeOffsets::Verified_Inline_Entry) {
667 // Special case if we have VIEP == VIEP(RO):
668 // this means UIEP (called by C1) == UEP (called by C2).
669 offsets()->set_value(CodeOffsets::Entry, _masm->offset());
670 }
671 if (needs_icache(method())) {
672 check_icache();
673 }
674
675 // VIEP: all value parameters are passed as refs - no packing.
676 emit_std_entry(CodeOffsets::Verified_Inline_Entry, nullptr);
677
678 if (ro_entry_type != CodeOffsets::Verified_Inline_Entry_RO) {
679 // The VIEP(RO) is the same as VEP or VIEP
680 assert(ro_entry_type == CodeOffsets::Verified_Entry ||
681 ro_entry_type == CodeOffsets::Verified_Inline_Entry, "must be");
682 offsets()->set_value(CodeOffsets::Verified_Inline_Entry_RO,
683 offsets()->value(ro_entry_type));
684 }
685 } else {
686 // All 3 entries are the same (no inline type packing)
687 offsets()->set_value(CodeOffsets::Entry, _masm->offset());
688 offsets()->set_value(CodeOffsets::Inline_Entry, _masm->offset());
689 if (needs_icache(method())) {
690 check_icache();
691 }
692 emit_std_entry(CodeOffsets::Verified_Inline_Entry, nullptr);
693 offsets()->set_value(CodeOffsets::Verified_Entry, offsets()->value(CodeOffsets::Verified_Inline_Entry));
694 offsets()->set_value(CodeOffsets::Verified_Inline_Entry_RO, offsets()->value(CodeOffsets::Verified_Inline_Entry));
695 }
696 }
697
698 void LIR_Assembler::emit_std_entry(CodeOffsets::Entries entry, const CompiledEntrySignature* ces) {
699 offsets()->set_value(entry, _masm->offset());
700 _masm->verified_entry(compilation()->directive()->BreakAtExecuteOption);
701 switch (entry) {
702 case CodeOffsets::Verified_Entry: {
703 if (needs_clinit_barrier_on_entry(method())) {
704 clinit_barrier(method());
705 }
706 int rt_call_offset = _masm->verified_entry(ces, initial_frame_size_in_bytes(), bang_size_in_bytes(), in_bytes(frame_map()->sp_offset_for_orig_pc()), _verified_inline_entry);
707 add_scalarized_entry_info(rt_call_offset);
708 break;
709 }
710 case CodeOffsets::Verified_Inline_Entry_RO: {
711 assert(!needs_clinit_barrier_on_entry(method()), "can't be static");
712 int rt_call_offset = _masm->verified_inline_ro_entry(ces, initial_frame_size_in_bytes(), bang_size_in_bytes(), in_bytes(frame_map()->sp_offset_for_orig_pc()), _verified_inline_entry);
713 add_scalarized_entry_info(rt_call_offset);
714 break;
715 }
716 case CodeOffsets::Verified_Inline_Entry: {
717 if (needs_clinit_barrier_on_entry(method())) {
718 clinit_barrier(method());
719 }
720 build_frame();
721 offsets()->set_value(CodeOffsets::Frame_Complete, _masm->offset());
722 break;
723 }
724 default:
725 ShouldNotReachHere();
726 break;
727 }
728 }
729
730 void LIR_Assembler::emit_op0(LIR_Op0* op) {
731 switch (op->code()) {
732 case lir_nop:
733 assert(op->info() == nullptr, "not supported");
734 _masm->nop();
735 break;
736
737 case lir_label:
738 Unimplemented();
739 break;
740
741 case lir_std_entry:
742 emit_std_entries();
743 break;
744
745 case lir_osr_entry:
746 offsets()->set_value(CodeOffsets::OSR_Entry, _masm->offset());
747 osr_entry();
748 break;
749
750 #ifdef IA32
751 case lir_fpop_raw:
752 fpop();
753 break;
754 #endif // IA32
755
756 case lir_breakpoint:
757 breakpoint();
758 break;
759
760 case lir_membar:
761 membar();
762 break;
763
776 case lir_membar_storestore:
777 membar_storestore();
778 break;
779
780 case lir_membar_loadstore:
781 membar_loadstore();
782 break;
783
784 case lir_membar_storeload:
785 membar_storeload();
786 break;
787
788 case lir_get_thread:
789 get_thread(op->result_opr());
790 break;
791
792 case lir_on_spin_wait:
793 on_spin_wait();
794 break;
795
796 case lir_check_orig_pc:
797 check_orig_pc();
798 break;
799
800 default:
801 ShouldNotReachHere();
802 break;
803 }
804 }
805
806
807 void LIR_Assembler::emit_op2(LIR_Op2* op) {
808 switch (op->code()) {
809 case lir_cmp:
810 if (op->info() != nullptr) {
811 assert(op->in_opr1()->is_address() || op->in_opr2()->is_address(),
812 "shouldn't be codeemitinfo for non-address operands");
813 add_debug_info_for_null_check_here(op->info()); // exception possible
814 }
815 comp_op(op->condition(), op->in_opr1(), op->in_opr2(), op);
816 break;
817
818 case lir_cmp_l2i:
819 case lir_cmp_fd2i:
865
866 default:
867 Unimplemented();
868 break;
869 }
870 }
871
872 void LIR_Assembler::emit_op4(LIR_Op4* op) {
873 switch(op->code()) {
874 case lir_cmove:
875 cmove(op->condition(), op->in_opr1(), op->in_opr2(), op->result_opr(), op->type(), op->in_opr3(), op->in_opr4());
876 break;
877
878 default:
879 Unimplemented();
880 break;
881 }
882 }
883
884 void LIR_Assembler::build_frame() {
885 _masm->build_frame(initial_frame_size_in_bytes(), bang_size_in_bytes(), in_bytes(frame_map()->sp_offset_for_orig_pc()),
886 needs_stack_repair(), method()->has_scalarized_args(), &_verified_inline_entry);
887 }
888
889
890 void LIR_Assembler::move_op(LIR_Opr src, LIR_Opr dest, BasicType type, LIR_PatchCode patch_code, CodeEmitInfo* info, bool wide) {
891 if (src->is_register()) {
892 if (dest->is_register()) {
893 assert(patch_code == lir_patch_none && info == nullptr, "no patching and info allowed here");
894 reg2reg(src, dest);
895 } else if (dest->is_stack()) {
896 assert(patch_code == lir_patch_none && info == nullptr, "no patching and info allowed here");
897 reg2stack(src, dest, type);
898 } else if (dest->is_address()) {
899 reg2mem(src, dest, type, patch_code, info, wide);
900 } else {
901 ShouldNotReachHere();
902 }
903
904 } else if (src->is_stack()) {
905 assert(patch_code == lir_patch_none && info == nullptr, "no patching and info allowed here");
906 if (dest->is_register()) {
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