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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #if V8_TARGET_ARCH_MIPS64 | 5 #if V8_TARGET_ARCH_MIPS64 |
6 | 6 |
7 // Note on Mips implementation: | 7 // Note on Mips implementation: |
8 // | 8 // |
9 // The result_register() for mips is the 'v0' register, which is defined | 9 // The result_register() for mips is the 'v0' register, which is defined |
10 // by the ABI to contain function return values. However, the first | 10 // by the ABI to contain function return values. However, the first |
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113 CompilationInfo* info = info_; | 113 CompilationInfo* info = info_; |
114 profiling_counter_ = isolate()->factory()->NewCell( | 114 profiling_counter_ = isolate()->factory()->NewCell( |
115 Handle<Smi>(Smi::FromInt(FLAG_interrupt_budget), isolate())); | 115 Handle<Smi>(Smi::FromInt(FLAG_interrupt_budget), isolate())); |
116 SetFunctionPosition(function()); | 116 SetFunctionPosition(function()); |
117 Comment cmnt(masm_, "[ function compiled by full code generator"); | 117 Comment cmnt(masm_, "[ function compiled by full code generator"); |
118 | 118 |
119 ProfileEntryHookStub::MaybeCallEntryHook(masm_); | 119 ProfileEntryHookStub::MaybeCallEntryHook(masm_); |
120 | 120 |
121 #ifdef DEBUG | 121 #ifdef DEBUG |
122 if (strlen(FLAG_stop_at) > 0 && | 122 if (strlen(FLAG_stop_at) > 0 && |
123 info->function()->name()->IsUtf8EqualTo(CStrVector(FLAG_stop_at))) { | 123 info->literal()->name()->IsUtf8EqualTo(CStrVector(FLAG_stop_at))) { |
124 __ stop("stop-at"); | 124 __ stop("stop-at"); |
125 } | 125 } |
126 #endif | 126 #endif |
127 | 127 |
128 // Sloppy mode functions and builtins need to replace the receiver with the | 128 // Sloppy mode functions and builtins need to replace the receiver with the |
129 // global proxy when called as functions (without an explicit receiver | 129 // global proxy when called as functions (without an explicit receiver |
130 // object). | 130 // object). |
131 if (is_sloppy(info->language_mode()) && !info->is_native() && | 131 if (is_sloppy(info->language_mode()) && !info->is_native() && |
132 info->MayUseThis() && info->scope()->has_this_declaration()) { | 132 info->MayUseThis() && info->scope()->has_this_declaration()) { |
133 Label ok; | 133 Label ok; |
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146 // MANUAL indicates that the scope shouldn't actually generate code to set up | 146 // MANUAL indicates that the scope shouldn't actually generate code to set up |
147 // the frame (that is done below). | 147 // the frame (that is done below). |
148 FrameScope frame_scope(masm_, StackFrame::MANUAL); | 148 FrameScope frame_scope(masm_, StackFrame::MANUAL); |
149 info->set_prologue_offset(masm_->pc_offset()); | 149 info->set_prologue_offset(masm_->pc_offset()); |
150 __ Prologue(info->IsCodePreAgingActive()); | 150 __ Prologue(info->IsCodePreAgingActive()); |
151 info->AddNoFrameRange(0, masm_->pc_offset()); | 151 info->AddNoFrameRange(0, masm_->pc_offset()); |
152 | 152 |
153 { Comment cmnt(masm_, "[ Allocate locals"); | 153 { Comment cmnt(masm_, "[ Allocate locals"); |
154 int locals_count = info->scope()->num_stack_slots(); | 154 int locals_count = info->scope()->num_stack_slots(); |
155 // Generators allocate locals, if any, in context slots. | 155 // Generators allocate locals, if any, in context slots. |
156 DCHECK(!IsGeneratorFunction(info->function()->kind()) || locals_count == 0); | 156 DCHECK(!IsGeneratorFunction(info->literal()->kind()) || locals_count == 0); |
157 if (locals_count > 0) { | 157 if (locals_count > 0) { |
158 if (locals_count >= 128) { | 158 if (locals_count >= 128) { |
159 Label ok; | 159 Label ok; |
160 __ Dsubu(t1, sp, Operand(locals_count * kPointerSize)); | 160 __ Dsubu(t1, sp, Operand(locals_count * kPointerSize)); |
161 __ LoadRoot(a2, Heap::kRealStackLimitRootIndex); | 161 __ LoadRoot(a2, Heap::kRealStackLimitRootIndex); |
162 __ Branch(&ok, hs, t1, Operand(a2)); | 162 __ Branch(&ok, hs, t1, Operand(a2)); |
163 __ InvokeBuiltin(Builtins::STACK_OVERFLOW, CALL_FUNCTION); | 163 __ InvokeBuiltin(Builtins::STACK_OVERFLOW, CALL_FUNCTION); |
164 __ bind(&ok); | 164 __ bind(&ok); |
165 } | 165 } |
166 __ LoadRoot(t1, Heap::kUndefinedValueRootIndex); | 166 __ LoadRoot(t1, Heap::kUndefinedValueRootIndex); |
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1469 // | 1469 // |
1470 // The condition on the declaration scopes is a conservative check for | 1470 // The condition on the declaration scopes is a conservative check for |
1471 // nested functions that access a binding and are called before the | 1471 // nested functions that access a binding and are called before the |
1472 // binding is initialized: | 1472 // binding is initialized: |
1473 // function() { f(); let x = 1; function f() { x = 2; } } | 1473 // function() { f(); let x = 1; function f() { x = 2; } } |
1474 // | 1474 // |
1475 bool skip_init_check; | 1475 bool skip_init_check; |
1476 if (var->scope()->DeclarationScope() != scope()->DeclarationScope()) { | 1476 if (var->scope()->DeclarationScope() != scope()->DeclarationScope()) { |
1477 skip_init_check = false; | 1477 skip_init_check = false; |
1478 } else if (var->is_this()) { | 1478 } else if (var->is_this()) { |
1479 CHECK(info_->function() != nullptr && | 1479 CHECK(info_->has_literal() && |
1480 (info_->function()->kind() & kSubclassConstructor) != 0); | 1480 (info_->literal()->kind() & kSubclassConstructor) != 0); |
1481 // TODO(dslomov): implement 'this' hole check elimination. | 1481 // TODO(dslomov): implement 'this' hole check elimination. |
1482 skip_init_check = false; | 1482 skip_init_check = false; |
1483 } else { | 1483 } else { |
1484 // Check that we always have valid source position. | 1484 // Check that we always have valid source position. |
1485 DCHECK(var->initializer_position() != RelocInfo::kNoPosition); | 1485 DCHECK(var->initializer_position() != RelocInfo::kNoPosition); |
1486 DCHECK(proxy->position() != RelocInfo::kNoPosition); | 1486 DCHECK(proxy->position() != RelocInfo::kNoPosition); |
1487 skip_init_check = var->mode() != CONST_LEGACY && | 1487 skip_init_check = var->mode() != CONST_LEGACY && |
1488 var->initializer_position() < proxy->position(); | 1488 var->initializer_position() < proxy->position(); |
1489 } | 1489 } |
1490 | 1490 |
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5382 reinterpret_cast<uint64_t>( | 5382 reinterpret_cast<uint64_t>( |
5383 isolate->builtins()->OsrAfterStackCheck()->entry())); | 5383 isolate->builtins()->OsrAfterStackCheck()->entry())); |
5384 return OSR_AFTER_STACK_CHECK; | 5384 return OSR_AFTER_STACK_CHECK; |
5385 } | 5385 } |
5386 | 5386 |
5387 | 5387 |
5388 } // namespace internal | 5388 } // namespace internal |
5389 } // namespace v8 | 5389 } // namespace v8 |
5390 | 5390 |
5391 #endif // V8_TARGET_ARCH_MIPS64 | 5391 #endif // V8_TARGET_ARCH_MIPS64 |
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