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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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_ARM64 | 7 #if V8_TARGET_ARCH_ARM64 |
8 | 8 |
9 #include "code-stubs.h" | 9 #include "code-stubs.h" |
10 #include "codegen.h" | 10 #include "codegen.h" |
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163 // Open a frame scope to indicate that there is a frame on the stack. | 163 // Open a frame scope to indicate that there is a frame on the stack. |
164 // The MANUAL indicates that the scope shouldn't actually generate code | 164 // The MANUAL indicates that the scope shouldn't actually generate code |
165 // to set up the frame because we do it manually below. | 165 // to set up the frame because we do it manually below. |
166 FrameScope frame_scope(masm_, StackFrame::MANUAL); | 166 FrameScope frame_scope(masm_, StackFrame::MANUAL); |
167 | 167 |
168 // This call emits the following sequence in a way that can be patched for | 168 // This call emits the following sequence in a way that can be patched for |
169 // code ageing support: | 169 // code ageing support: |
170 // Push(lr, fp, cp, x1); | 170 // Push(lr, fp, cp, x1); |
171 // Add(fp, jssp, 2 * kPointerSize); | 171 // Add(fp, jssp, 2 * kPointerSize); |
172 info->set_prologue_offset(masm_->pc_offset()); | 172 info->set_prologue_offset(masm_->pc_offset()); |
173 __ Prologue(BUILD_FUNCTION_FRAME); | 173 ASSERT(!info->IsStub()); |
| 174 __ Prologue(info); |
174 info->AddNoFrameRange(0, masm_->pc_offset()); | 175 info->AddNoFrameRange(0, masm_->pc_offset()); |
175 | 176 |
176 // Reserve space on the stack for locals. | 177 // Reserve space on the stack for locals. |
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 | 182 |
182 if (locals_count > 0) { | 183 if (locals_count > 0) { |
183 if (locals_count >= 128) { | 184 if (locals_count >= 128) { |
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340 void FullCodeGenerator::EmitProfilingCounterDecrement(int delta) { | 341 void FullCodeGenerator::EmitProfilingCounterDecrement(int delta) { |
341 __ Mov(x2, Operand(profiling_counter_)); | 342 __ Mov(x2, Operand(profiling_counter_)); |
342 __ Ldr(x3, FieldMemOperand(x2, Cell::kValueOffset)); | 343 __ Ldr(x3, FieldMemOperand(x2, Cell::kValueOffset)); |
343 __ Subs(x3, x3, Smi::FromInt(delta)); | 344 __ Subs(x3, x3, Smi::FromInt(delta)); |
344 __ Str(x3, FieldMemOperand(x2, Cell::kValueOffset)); | 345 __ Str(x3, FieldMemOperand(x2, Cell::kValueOffset)); |
345 } | 346 } |
346 | 347 |
347 | 348 |
348 void FullCodeGenerator::EmitProfilingCounterReset() { | 349 void FullCodeGenerator::EmitProfilingCounterReset() { |
349 int reset_value = FLAG_interrupt_budget; | 350 int reset_value = FLAG_interrupt_budget; |
350 if (isolate()->IsDebuggerActive()) { | 351 if (info_->is_debug()) { |
351 // Detect debug break requests as soon as possible. | 352 // Detect debug break requests as soon as possible. |
352 reset_value = FLAG_interrupt_budget >> 4; | 353 reset_value = FLAG_interrupt_budget >> 4; |
353 } | 354 } |
354 __ Mov(x2, Operand(profiling_counter_)); | 355 __ Mov(x2, Operand(profiling_counter_)); |
355 __ Mov(x3, Smi::FromInt(reset_value)); | 356 __ Mov(x3, Smi::FromInt(reset_value)); |
356 __ Str(x3, FieldMemOperand(x2, Cell::kValueOffset)); | 357 __ Str(x3, FieldMemOperand(x2, Cell::kValueOffset)); |
357 } | 358 } |
358 | 359 |
359 | 360 |
360 void FullCodeGenerator::EmitBackEdgeBookkeeping(IterationStatement* stmt, | 361 void FullCodeGenerator::EmitBackEdgeBookkeeping(IterationStatement* stmt, |
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4886 return previous_; | 4887 return previous_; |
4887 } | 4888 } |
4888 | 4889 |
4889 | 4890 |
4890 #undef __ | 4891 #undef __ |
4891 | 4892 |
4892 | 4893 |
4893 } } // namespace v8::internal | 4894 } } // namespace v8::internal |
4894 | 4895 |
4895 #endif // V8_TARGET_ARCH_ARM64 | 4896 #endif // V8_TARGET_ARCH_ARM64 |
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