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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 "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #include "src/arm64/lithium-codegen-arm64.h" | 7 #include "src/arm64/lithium-codegen-arm64.h" |
8 #include "src/arm64/lithium-gap-resolver-arm64.h" | 8 #include "src/arm64/lithium-gap-resolver-arm64.h" |
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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2222 } | 2222 } |
2223 | 2223 |
2224 | 2224 |
2225 void LCodeGen::DoCheckSmi(LCheckSmi* instr) { | 2225 void LCodeGen::DoCheckSmi(LCheckSmi* instr) { |
2226 Register value = ToRegister(instr->value()); | 2226 Register value = ToRegister(instr->value()); |
2227 DCHECK(!instr->result() || ToRegister(instr->result()).Is(value)); | 2227 DCHECK(!instr->result() || ToRegister(instr->result()).Is(value)); |
2228 DeoptimizeIfNotSmi(value, instr, Deoptimizer::kNotASmi); | 2228 DeoptimizeIfNotSmi(value, instr, Deoptimizer::kNotASmi); |
2229 } | 2229 } |
2230 | 2230 |
2231 | 2231 |
| 2232 void LCodeGen::DoCheckArrayBufferNotNeutered( |
| 2233 LCheckArrayBufferNotNeutered* instr) { |
| 2234 UseScratchRegisterScope temps(masm()); |
| 2235 Register view = ToRegister(instr->view()); |
| 2236 Register scratch = temps.AcquireX(); |
| 2237 |
| 2238 Label has_no_buffer; |
| 2239 __ Ldr(scratch, FieldMemOperand(view, JSArrayBufferView::kBufferOffset)); |
| 2240 __ JumpIfSmi(scratch, &has_no_buffer); |
| 2241 __ Ldr(scratch, FieldMemOperand(scratch, JSArrayBuffer::kBitFieldOffset)); |
| 2242 __ Tst(scratch, Operand(1 << JSArrayBuffer::WasNeutered::kShift)); |
| 2243 DeoptimizeIf(ne, instr, Deoptimizer::kOutOfBounds); |
| 2244 |
| 2245 __ Bind(&has_no_buffer); |
| 2246 } |
| 2247 |
| 2248 |
2232 void LCodeGen::DoCheckInstanceType(LCheckInstanceType* instr) { | 2249 void LCodeGen::DoCheckInstanceType(LCheckInstanceType* instr) { |
2233 Register input = ToRegister(instr->value()); | 2250 Register input = ToRegister(instr->value()); |
2234 Register scratch = ToRegister(instr->temp()); | 2251 Register scratch = ToRegister(instr->temp()); |
2235 | 2252 |
2236 __ Ldr(scratch, FieldMemOperand(input, HeapObject::kMapOffset)); | 2253 __ Ldr(scratch, FieldMemOperand(input, HeapObject::kMapOffset)); |
2237 __ Ldrb(scratch, FieldMemOperand(scratch, Map::kInstanceTypeOffset)); | 2254 __ Ldrb(scratch, FieldMemOperand(scratch, Map::kInstanceTypeOffset)); |
2238 | 2255 |
2239 if (instr->hydrogen()->is_interval_check()) { | 2256 if (instr->hydrogen()->is_interval_check()) { |
2240 InstanceType first, last; | 2257 InstanceType first, last; |
2241 instr->hydrogen()->GetCheckInterval(&first, &last); | 2258 instr->hydrogen()->GetCheckInterval(&first, &last); |
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6028 Handle<ScopeInfo> scope_info = instr->scope_info(); | 6045 Handle<ScopeInfo> scope_info = instr->scope_info(); |
6029 __ Push(scope_info); | 6046 __ Push(scope_info); |
6030 __ Push(ToRegister(instr->function())); | 6047 __ Push(ToRegister(instr->function())); |
6031 CallRuntime(Runtime::kPushBlockContext, 2, instr); | 6048 CallRuntime(Runtime::kPushBlockContext, 2, instr); |
6032 RecordSafepoint(Safepoint::kNoLazyDeopt); | 6049 RecordSafepoint(Safepoint::kNoLazyDeopt); |
6033 } | 6050 } |
6034 | 6051 |
6035 | 6052 |
6036 | 6053 |
6037 } } // namespace v8::internal | 6054 } } // namespace v8::internal |
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