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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 "src/crankshaft/arm/lithium-codegen-arm.h" | 5 #include "src/crankshaft/arm/lithium-codegen-arm.h" |
6 | 6 |
7 #include "src/base/bits.h" | 7 #include "src/base/bits.h" |
8 #include "src/code-factory.h" | 8 #include "src/code-factory.h" |
9 #include "src/code-stubs.h" | 9 #include "src/code-stubs.h" |
10 #include "src/crankshaft/arm/lithium-gap-resolver-arm.h" | 10 #include "src/crankshaft/arm/lithium-gap-resolver-arm.h" |
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5410 // clang-format on | 5410 // clang-format on |
5411 | 5411 |
5412 } else { | 5412 } else { |
5413 __ b(false_label); | 5413 __ b(false_label); |
5414 } | 5414 } |
5415 | 5415 |
5416 return final_branch_condition; | 5416 return final_branch_condition; |
5417 } | 5417 } |
5418 | 5418 |
5419 | 5419 |
5420 void LCodeGen::DoIsConstructCallAndBranch(LIsConstructCallAndBranch* instr) { | |
5421 Register temp1 = ToRegister(instr->temp()); | |
5422 | |
5423 EmitIsConstructCall(temp1, scratch0()); | |
5424 EmitBranch(instr, eq); | |
5425 } | |
5426 | |
5427 | |
5428 void LCodeGen::EmitIsConstructCall(Register temp1, Register temp2) { | |
5429 DCHECK(!temp1.is(temp2)); | |
5430 // Get the frame pointer for the calling frame. | |
5431 __ ldr(temp1, MemOperand(fp, StandardFrameConstants::kCallerFPOffset)); | |
5432 | |
5433 // Skip the arguments adaptor frame if it exists. | |
5434 __ ldr(temp2, MemOperand(temp1, StandardFrameConstants::kContextOffset)); | |
5435 __ cmp(temp2, Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); | |
5436 __ ldr(temp1, MemOperand(temp1, StandardFrameConstants::kCallerFPOffset), eq); | |
5437 | |
5438 // Check the marker in the calling frame. | |
5439 __ ldr(temp1, MemOperand(temp1, StandardFrameConstants::kMarkerOffset)); | |
5440 __ cmp(temp1, Operand(Smi::FromInt(StackFrame::CONSTRUCT))); | |
5441 } | |
5442 | |
5443 | |
5444 void LCodeGen::EnsureSpaceForLazyDeopt(int space_needed) { | 5420 void LCodeGen::EnsureSpaceForLazyDeopt(int space_needed) { |
5445 if (info()->ShouldEnsureSpaceForLazyDeopt()) { | 5421 if (info()->ShouldEnsureSpaceForLazyDeopt()) { |
5446 // Ensure that we have enough space after the previous lazy-bailout | 5422 // Ensure that we have enough space after the previous lazy-bailout |
5447 // instruction for patching the code here. | 5423 // instruction for patching the code here. |
5448 int current_pc = masm()->pc_offset(); | 5424 int current_pc = masm()->pc_offset(); |
5449 if (current_pc < last_lazy_deopt_pc_ + space_needed) { | 5425 if (current_pc < last_lazy_deopt_pc_ + space_needed) { |
5450 // Block literal pool emission for duration of padding. | 5426 // Block literal pool emission for duration of padding. |
5451 Assembler::BlockConstPoolScope block_const_pool(masm()); | 5427 Assembler::BlockConstPoolScope block_const_pool(masm()); |
5452 int padding_size = last_lazy_deopt_pc_ + space_needed - current_pc; | 5428 int padding_size = last_lazy_deopt_pc_ + space_needed - current_pc; |
5453 DCHECK_EQ(0, padding_size % Assembler::kInstrSize); | 5429 DCHECK_EQ(0, padding_size % Assembler::kInstrSize); |
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5718 __ push(ToRegister(instr->function())); | 5694 __ push(ToRegister(instr->function())); |
5719 CallRuntime(Runtime::kPushBlockContext, 2, instr); | 5695 CallRuntime(Runtime::kPushBlockContext, 2, instr); |
5720 RecordSafepoint(Safepoint::kNoLazyDeopt); | 5696 RecordSafepoint(Safepoint::kNoLazyDeopt); |
5721 } | 5697 } |
5722 | 5698 |
5723 | 5699 |
5724 #undef __ | 5700 #undef __ |
5725 | 5701 |
5726 } // namespace internal | 5702 } // namespace internal |
5727 } // namespace v8 | 5703 } // namespace v8 |
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