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Issue 2396353002: Revert "Add Smi::Zero and replace all Smi::FromInt(0) calls" (Closed)
Patch Set: Created 4 years, 2 months 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 #if V8_TARGET_ARCH_X64 5 #if V8_TARGET_ARCH_X64
6 6
7 #include "src/codegen.h" 7 #include "src/codegen.h"
8 #include "src/deoptimizer.h" 8 #include "src/deoptimizer.h"
9 #include "src/full-codegen/full-codegen.h" 9 #include "src/full-codegen/full-codegen.h"
10 #include "src/register-configuration.h" 10 #include "src/register-configuration.h"
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59 // jump if space is short. The absolute jumps are put in a table just 59 // jump if space is short. The absolute jumps are put in a table just
60 // before the safepoint table (space was allocated there when the Code 60 // before the safepoint table (space was allocated there when the Code
61 // object was created, if necessary). 61 // object was created, if necessary).
62 62
63 Address instruction_start = code->instruction_start(); 63 Address instruction_start = code->instruction_start();
64 #ifdef DEBUG 64 #ifdef DEBUG
65 Address prev_call_address = NULL; 65 Address prev_call_address = NULL;
66 #endif 66 #endif
67 DeoptimizationInputData* deopt_data = 67 DeoptimizationInputData* deopt_data =
68 DeoptimizationInputData::cast(code->deoptimization_data()); 68 DeoptimizationInputData::cast(code->deoptimization_data());
69 deopt_data->SetSharedFunctionInfo(Smi::kZero); 69 deopt_data->SetSharedFunctionInfo(Smi::FromInt(0));
70 // For each LLazyBailout instruction insert a call to the corresponding 70 // For each LLazyBailout instruction insert a call to the corresponding
71 // deoptimization entry. 71 // deoptimization entry.
72 for (int i = 0; i < deopt_data->DeoptCount(); i++) { 72 for (int i = 0; i < deopt_data->DeoptCount(); i++) {
73 if (deopt_data->Pc(i)->value() == -1) continue; 73 if (deopt_data->Pc(i)->value() == -1) continue;
74 // Position where Call will be patched in. 74 // Position where Call will be patched in.
75 Address call_address = instruction_start + deopt_data->Pc(i)->value(); 75 Address call_address = instruction_start + deopt_data->Pc(i)->value();
76 // There is room enough to write a long call instruction because we pad 76 // There is room enough to write a long call instruction because we pad
77 // LLazyBailout instructions with nops if necessary. 77 // LLazyBailout instructions with nops if necessary.
78 CodePatcher patcher(isolate, call_address, Assembler::kCallSequenceLength); 78 CodePatcher patcher(isolate, call_address, Assembler::kCallSequenceLength);
79 patcher.masm()->Call(GetDeoptimizationEntry(isolate, i, LAZY), 79 patcher.masm()->Call(GetDeoptimizationEntry(isolate, i, LAZY),
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333 } 333 }
334 334
335 335
336 #undef __ 336 #undef __
337 337
338 338
339 } // namespace internal 339 } // namespace internal
340 } // namespace v8 340 } // namespace v8
341 341
342 #endif // V8_TARGET_ARCH_X64 342 #endif // V8_TARGET_ARCH_X64
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