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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_ARM | 5 #if V8_TARGET_ARCH_ARM |
6 | 6 |
7 #include "src/codegen.h" | 7 #include "src/codegen.h" |
8 #include "src/debug/debug.h" | 8 #include "src/debug/debug.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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1045 // it is present) and load it into kInterpreterBytecodeArrayRegister. | 1045 // it is present) and load it into kInterpreterBytecodeArrayRegister. |
1046 __ ldr(r0, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); | 1046 __ ldr(r0, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); |
1047 Register debug_info = kInterpreterBytecodeArrayRegister; | 1047 Register debug_info = kInterpreterBytecodeArrayRegister; |
1048 DCHECK(!debug_info.is(r0)); | 1048 DCHECK(!debug_info.is(r0)); |
1049 __ ldr(debug_info, FieldMemOperand(r0, SharedFunctionInfo::kDebugInfoOffset)); | 1049 __ ldr(debug_info, FieldMemOperand(r0, SharedFunctionInfo::kDebugInfoOffset)); |
1050 __ cmp(debug_info, Operand(DebugInfo::uninitialized())); | 1050 __ cmp(debug_info, Operand(DebugInfo::uninitialized())); |
1051 // Load original bytecode array or the debug copy. | 1051 // Load original bytecode array or the debug copy. |
1052 __ ldr(kInterpreterBytecodeArrayRegister, | 1052 __ ldr(kInterpreterBytecodeArrayRegister, |
1053 FieldMemOperand(r0, SharedFunctionInfo::kFunctionDataOffset), eq); | 1053 FieldMemOperand(r0, SharedFunctionInfo::kFunctionDataOffset), eq); |
1054 __ ldr(kInterpreterBytecodeArrayRegister, | 1054 __ ldr(kInterpreterBytecodeArrayRegister, |
1055 FieldMemOperand(debug_info, DebugInfo::kAbstractCodeIndex), ne); | 1055 FieldMemOperand(debug_info, DebugInfo::kDebugBytecodeArrayIndex), ne); |
1056 | 1056 |
1057 // Check function data field is actually a BytecodeArray object. | 1057 // Check function data field is actually a BytecodeArray object. |
1058 Label bytecode_array_not_present; | 1058 Label bytecode_array_not_present; |
1059 __ CompareRoot(kInterpreterBytecodeArrayRegister, | 1059 __ CompareRoot(kInterpreterBytecodeArrayRegister, |
1060 Heap::kUndefinedValueRootIndex); | 1060 Heap::kUndefinedValueRootIndex); |
1061 __ b(eq, &bytecode_array_not_present); | 1061 __ b(eq, &bytecode_array_not_present); |
1062 if (FLAG_debug_code) { | 1062 if (FLAG_debug_code) { |
1063 __ SmiTst(kInterpreterBytecodeArrayRegister); | 1063 __ SmiTst(kInterpreterBytecodeArrayRegister); |
1064 __ Assert(ne, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry); | 1064 __ Assert(ne, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry); |
1065 __ CompareObjectType(kInterpreterBytecodeArrayRegister, r0, no_reg, | 1065 __ CompareObjectType(kInterpreterBytecodeArrayRegister, r0, no_reg, |
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2896 __ bkpt(0); | 2896 __ bkpt(0); |
2897 } | 2897 } |
2898 } | 2898 } |
2899 | 2899 |
2900 #undef __ | 2900 #undef __ |
2901 | 2901 |
2902 } // namespace internal | 2902 } // namespace internal |
2903 } // namespace v8 | 2903 } // namespace v8 |
2904 | 2904 |
2905 #endif // V8_TARGET_ARCH_ARM | 2905 #endif // V8_TARGET_ARCH_ARM |
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