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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_IA32 | 5 #if V8_TARGET_ARCH_IA32 |
6 | 6 |
7 #include "src/crankshaft/ia32/lithium-codegen-ia32.h" | 7 #include "src/crankshaft/ia32/lithium-codegen-ia32.h" |
8 | 8 |
9 #include "src/base/bits.h" | 9 #include "src/base/bits.h" |
10 #include "src/code-factory.h" | 10 #include "src/code-factory.h" |
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5290 #undef SIMD128_TYPE | 5290 #undef SIMD128_TYPE |
5291 // clang-format on | 5291 // clang-format on |
5292 | 5292 |
5293 } else { | 5293 } else { |
5294 __ jmp(false_label, false_distance); | 5294 __ jmp(false_label, false_distance); |
5295 } | 5295 } |
5296 return final_branch_condition; | 5296 return final_branch_condition; |
5297 } | 5297 } |
5298 | 5298 |
5299 | 5299 |
5300 void LCodeGen::DoIsConstructCallAndBranch(LIsConstructCallAndBranch* instr) { | |
5301 Register temp = ToRegister(instr->temp()); | |
5302 | |
5303 EmitIsConstructCall(temp); | |
5304 EmitBranch(instr, equal); | |
5305 } | |
5306 | |
5307 | |
5308 void LCodeGen::EmitIsConstructCall(Register temp) { | |
5309 // Get the frame pointer for the calling frame. | |
5310 __ mov(temp, Operand(ebp, StandardFrameConstants::kCallerFPOffset)); | |
5311 | |
5312 // Skip the arguments adaptor frame if it exists. | |
5313 Label check_frame_marker; | |
5314 __ cmp(Operand(temp, StandardFrameConstants::kContextOffset), | |
5315 Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); | |
5316 __ j(not_equal, &check_frame_marker, Label::kNear); | |
5317 __ mov(temp, Operand(temp, StandardFrameConstants::kCallerFPOffset)); | |
5318 | |
5319 // Check the marker in the calling frame. | |
5320 __ bind(&check_frame_marker); | |
5321 __ cmp(Operand(temp, StandardFrameConstants::kMarkerOffset), | |
5322 Immediate(Smi::FromInt(StackFrame::CONSTRUCT))); | |
5323 } | |
5324 | |
5325 | |
5326 void LCodeGen::EnsureSpaceForLazyDeopt(int space_needed) { | 5300 void LCodeGen::EnsureSpaceForLazyDeopt(int space_needed) { |
5327 if (info()->ShouldEnsureSpaceForLazyDeopt()) { | 5301 if (info()->ShouldEnsureSpaceForLazyDeopt()) { |
5328 // Ensure that we have enough space after the previous lazy-bailout | 5302 // Ensure that we have enough space after the previous lazy-bailout |
5329 // instruction for patching the code here. | 5303 // instruction for patching the code here. |
5330 int current_pc = masm()->pc_offset(); | 5304 int current_pc = masm()->pc_offset(); |
5331 if (current_pc < last_lazy_deopt_pc_ + space_needed) { | 5305 if (current_pc < last_lazy_deopt_pc_ + space_needed) { |
5332 int padding_size = last_lazy_deopt_pc_ + space_needed - current_pc; | 5306 int padding_size = last_lazy_deopt_pc_ + space_needed - current_pc; |
5333 __ Nop(padding_size); | 5307 __ Nop(padding_size); |
5334 } | 5308 } |
5335 } | 5309 } |
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5588 RecordSafepoint(Safepoint::kNoLazyDeopt); | 5562 RecordSafepoint(Safepoint::kNoLazyDeopt); |
5589 } | 5563 } |
5590 | 5564 |
5591 | 5565 |
5592 #undef __ | 5566 #undef __ |
5593 | 5567 |
5594 } // namespace internal | 5568 } // namespace internal |
5595 } // namespace v8 | 5569 } // namespace v8 |
5596 | 5570 |
5597 #endif // V8_TARGET_ARCH_IA32 | 5571 #endif // V8_TARGET_ARCH_IA32 |
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