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Issue 1479233002: Deprecate the %IsConstructCall intrinsic completely. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@local_js-use-new-target-3
Patch Set: Rebased. Created 5 years ago
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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"
(...skipping 5399 matching lines...) Expand 10 before | Expand all | Expand 10 after
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);
(...skipping 264 matching lines...) Expand 10 before | Expand all | Expand 10 after
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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