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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 #include "v8.h" | 5 #include "v8.h" |
| 6 | 6 |
| 7 #if V8_TARGET_ARCH_ARM | 7 #if V8_TARGET_ARCH_ARM |
| 8 | 8 |
| 9 #include "code-stubs.h" | 9 #include "code-stubs.h" |
| 10 #include "codegen.h" | 10 #include "codegen.h" |
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| 164 | 164 |
| 165 __ bind(&ok); | 165 __ bind(&ok); |
| 166 } | 166 } |
| 167 | 167 |
| 168 // Open a frame scope to indicate that there is a frame on the stack. The | 168 // Open a frame scope to indicate that there is a frame on the stack. The |
| 169 // MANUAL indicates that the scope shouldn't actually generate code to set up | 169 // MANUAL indicates that the scope shouldn't actually generate code to set up |
| 170 // the frame (that is done below). | 170 // the frame (that is done below). |
| 171 FrameScope frame_scope(masm_, StackFrame::MANUAL); | 171 FrameScope frame_scope(masm_, StackFrame::MANUAL); |
| 172 | 172 |
| 173 info->set_prologue_offset(masm_->pc_offset()); | 173 info->set_prologue_offset(masm_->pc_offset()); |
| 174 __ Prologue(BUILD_FUNCTION_FRAME); | 174 ASSERT(!info->IsStub()); |
| 175 __ Prologue(info); |
| 175 info->AddNoFrameRange(0, masm_->pc_offset()); | 176 info->AddNoFrameRange(0, masm_->pc_offset()); |
| 176 | 177 |
| 177 { Comment cmnt(masm_, "[ Allocate locals"); | 178 { Comment cmnt(masm_, "[ Allocate locals"); |
| 178 int locals_count = info->scope()->num_stack_slots(); | 179 int locals_count = info->scope()->num_stack_slots(); |
| 179 // Generators allocate locals, if any, in context slots. | 180 // Generators allocate locals, if any, in context slots. |
| 180 ASSERT(!info->function()->is_generator() || locals_count == 0); | 181 ASSERT(!info->function()->is_generator() || locals_count == 0); |
| 181 if (locals_count > 0) { | 182 if (locals_count > 0) { |
| 182 if (locals_count >= 128) { | 183 if (locals_count >= 128) { |
| 183 EmitStackCheck(masm_, r2, locals_count, r9); | 184 EmitStackCheck(masm_, r2, locals_count, r9); |
| 184 } | 185 } |
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| 342 void FullCodeGenerator::EmitProfilingCounterDecrement(int delta) { | 343 void FullCodeGenerator::EmitProfilingCounterDecrement(int delta) { |
| 343 __ mov(r2, Operand(profiling_counter_)); | 344 __ mov(r2, Operand(profiling_counter_)); |
| 344 __ ldr(r3, FieldMemOperand(r2, Cell::kValueOffset)); | 345 __ ldr(r3, FieldMemOperand(r2, Cell::kValueOffset)); |
| 345 __ sub(r3, r3, Operand(Smi::FromInt(delta)), SetCC); | 346 __ sub(r3, r3, Operand(Smi::FromInt(delta)), SetCC); |
| 346 __ str(r3, FieldMemOperand(r2, Cell::kValueOffset)); | 347 __ str(r3, FieldMemOperand(r2, Cell::kValueOffset)); |
| 347 } | 348 } |
| 348 | 349 |
| 349 | 350 |
| 350 void FullCodeGenerator::EmitProfilingCounterReset() { | 351 void FullCodeGenerator::EmitProfilingCounterReset() { |
| 351 int reset_value = FLAG_interrupt_budget; | 352 int reset_value = FLAG_interrupt_budget; |
| 352 if (isolate()->IsDebuggerActive()) { | 353 if (info_->is_debug()) { |
| 353 // Detect debug break requests as soon as possible. | 354 // Detect debug break requests as soon as possible. |
| 354 reset_value = FLAG_interrupt_budget >> 4; | 355 reset_value = FLAG_interrupt_budget >> 4; |
| 355 } | 356 } |
| 356 __ mov(r2, Operand(profiling_counter_)); | 357 __ mov(r2, Operand(profiling_counter_)); |
| 357 __ mov(r3, Operand(Smi::FromInt(reset_value))); | 358 __ mov(r3, Operand(Smi::FromInt(reset_value))); |
| 358 __ str(r3, FieldMemOperand(r2, Cell::kValueOffset)); | 359 __ str(r3, FieldMemOperand(r2, Cell::kValueOffset)); |
| 359 } | 360 } |
| 360 | 361 |
| 361 | 362 |
| 362 void FullCodeGenerator::EmitBackEdgeBookkeeping(IterationStatement* stmt, | 363 void FullCodeGenerator::EmitBackEdgeBookkeeping(IterationStatement* stmt, |
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| 4821 | 4822 |
| 4822 ASSERT(interrupt_address == | 4823 ASSERT(interrupt_address == |
| 4823 isolate->builtins()->OsrAfterStackCheck()->entry()); | 4824 isolate->builtins()->OsrAfterStackCheck()->entry()); |
| 4824 return OSR_AFTER_STACK_CHECK; | 4825 return OSR_AFTER_STACK_CHECK; |
| 4825 } | 4826 } |
| 4826 | 4827 |
| 4827 | 4828 |
| 4828 } } // namespace v8::internal | 4829 } } // namespace v8::internal |
| 4829 | 4830 |
| 4830 #endif // V8_TARGET_ARCH_ARM | 4831 #endif // V8_TARGET_ARCH_ARM |
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