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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/code-factory.h" | 7 #include "src/code-factory.h" |
8 #include "src/codegen.h" | 8 #include "src/codegen.h" |
9 #include "src/deoptimizer.h" | 9 #include "src/deoptimizer.h" |
10 #include "src/full-codegen/full-codegen.h" | 10 #include "src/full-codegen/full-codegen.h" |
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1036 __ push(argument_count); | 1036 __ push(argument_count); |
1037 __ push(new_target); | 1037 __ push(new_target); |
1038 __ push(closure); | 1038 __ push(closure); |
1039 | 1039 |
1040 Register map = argument_count; | 1040 Register map = argument_count; |
1041 Register index = ebx; | 1041 Register index = ebx; |
1042 __ mov(map, FieldOperand(closure, JSFunction::kSharedFunctionInfoOffset)); | 1042 __ mov(map, FieldOperand(closure, JSFunction::kSharedFunctionInfoOffset)); |
1043 __ mov(map, FieldOperand(map, SharedFunctionInfo::kOptimizedCodeMapOffset)); | 1043 __ mov(map, FieldOperand(map, SharedFunctionInfo::kOptimizedCodeMapOffset)); |
1044 __ mov(index, FieldOperand(map, FixedArray::kLengthOffset)); | 1044 __ mov(index, FieldOperand(map, FixedArray::kLengthOffset)); |
1045 __ cmp(index, Immediate(Smi::FromInt(2))); | 1045 __ cmp(index, Immediate(Smi::FromInt(2))); |
1046 __ j(less, &try_shared); | 1046 __ j(less, &gotta_call_runtime); |
1047 | 1047 |
1048 // edx : native context | 1048 // edx : native context |
1049 // ebx : length / index | 1049 // ebx : length / index |
1050 // eax : optimized code map | 1050 // eax : optimized code map |
1051 // stack[0] : new target | 1051 // stack[0] : new target |
1052 // stack[4] : closure | 1052 // stack[4] : closure |
1053 Register native_context = edx; | 1053 Register native_context = edx; |
1054 __ mov(native_context, NativeContextOperand()); | 1054 __ mov(native_context, NativeContextOperand()); |
1055 | 1055 |
1056 __ bind(&loop_top); | 1056 __ bind(&loop_top); |
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1096 __ mov(closure, ebx); | 1096 __ mov(closure, ebx); |
1097 __ pop(new_target); | 1097 __ pop(new_target); |
1098 __ pop(argument_count); | 1098 __ pop(argument_count); |
1099 __ jmp(entry); | 1099 __ jmp(entry); |
1100 | 1100 |
1101 __ bind(&loop_bottom); | 1101 __ bind(&loop_bottom); |
1102 __ sub(index, Immediate(Smi::FromInt(SharedFunctionInfo::kEntryLength))); | 1102 __ sub(index, Immediate(Smi::FromInt(SharedFunctionInfo::kEntryLength))); |
1103 __ cmp(index, Immediate(Smi::FromInt(1))); | 1103 __ cmp(index, Immediate(Smi::FromInt(1))); |
1104 __ j(greater, &loop_top); | 1104 __ j(greater, &loop_top); |
1105 | 1105 |
1106 // We found no code. Try the SharedFunctionInfo. | 1106 // We found no code. |
| 1107 __ jmp(&gotta_call_runtime); |
| 1108 |
1107 __ bind(&try_shared); | 1109 __ bind(&try_shared); |
1108 __ pop(closure); | 1110 __ pop(closure); |
1109 __ pop(new_target); | 1111 __ pop(new_target); |
1110 __ pop(argument_count); | 1112 __ pop(argument_count); |
1111 __ mov(entry, FieldOperand(closure, JSFunction::kSharedFunctionInfoOffset)); | 1113 __ mov(entry, FieldOperand(closure, JSFunction::kSharedFunctionInfoOffset)); |
1112 // Is the shared function marked for tier up? | 1114 // Is the shared function marked for tier up? |
1113 __ test_b(FieldOperand(entry, SharedFunctionInfo::kMarkedForTierUpByteOffset), | 1115 __ test_b(FieldOperand(entry, SharedFunctionInfo::kMarkedForTierUpByteOffset), |
1114 Immediate(1 << SharedFunctionInfo::kMarkedForTierUpBitWithinByte)); | 1116 Immediate(1 << SharedFunctionInfo::kMarkedForTierUpBitWithinByte)); |
1115 __ j(not_zero, &gotta_call_runtime_no_stack); | 1117 __ j(not_zero, &gotta_call_runtime_no_stack); |
1116 | 1118 |
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3262 | 3264 |
3263 void Builtins::Generate_InterpreterOnStackReplacement(MacroAssembler* masm) { | 3265 void Builtins::Generate_InterpreterOnStackReplacement(MacroAssembler* masm) { |
3264 Generate_OnStackReplacementHelper(masm, true); | 3266 Generate_OnStackReplacementHelper(masm, true); |
3265 } | 3267 } |
3266 | 3268 |
3267 #undef __ | 3269 #undef __ |
3268 } // namespace internal | 3270 } // namespace internal |
3269 } // namespace v8 | 3271 } // namespace v8 |
3270 | 3272 |
3271 #endif // V8_TARGET_ARCH_IA32 | 3273 #endif // V8_TARGET_ARCH_IA32 |
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