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| 1 // Copyright 2006-2009 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2009 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 901 bind(&same_contexts); | 901 bind(&same_contexts); |
| 902 } | 902 } |
| 903 | 903 |
| 904 | 904 |
| 905 void MacroAssembler::AllocateInNewSpace(int object_size, | 905 void MacroAssembler::AllocateInNewSpace(int object_size, |
| 906 Register result, | 906 Register result, |
| 907 Register scratch1, | 907 Register scratch1, |
| 908 Register scratch2, | 908 Register scratch2, |
| 909 Label* gc_required, | 909 Label* gc_required, |
| 910 AllocationFlags flags) { | 910 AllocationFlags flags) { |
| 911 if (!FLAG_inline_new) { |
| 912 if (FLAG_debug_code) { |
| 913 // Trash the registers to simulate an allocation failure. |
| 914 mov(result, Operand(0x7091)); |
| 915 mov(scratch1, Operand(0x7191)); |
| 916 mov(scratch2, Operand(0x7291)); |
| 917 } |
| 918 jmp(gc_required); |
| 919 return; |
| 920 } |
| 921 |
| 911 ASSERT(!result.is(scratch1)); | 922 ASSERT(!result.is(scratch1)); |
| 912 ASSERT(!scratch1.is(scratch2)); | 923 ASSERT(!scratch1.is(scratch2)); |
| 913 | 924 |
| 914 // Make object size into bytes. | 925 // Make object size into bytes. |
| 915 if ((flags & SIZE_IN_WORDS) != 0) { | 926 if ((flags & SIZE_IN_WORDS) != 0) { |
| 916 object_size *= kPointerSize; | 927 object_size *= kPointerSize; |
| 917 } | 928 } |
| 918 ASSERT_EQ(0, object_size & kObjectAlignmentMask); | 929 ASSERT_EQ(0, object_size & kObjectAlignmentMask); |
| 919 | 930 |
| 920 // Load address of new object into result and allocation top address into | 931 // Load address of new object into result and allocation top address into |
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| 952 } | 963 } |
| 953 } | 964 } |
| 954 | 965 |
| 955 | 966 |
| 956 void MacroAssembler::AllocateInNewSpace(Register object_size, | 967 void MacroAssembler::AllocateInNewSpace(Register object_size, |
| 957 Register result, | 968 Register result, |
| 958 Register scratch1, | 969 Register scratch1, |
| 959 Register scratch2, | 970 Register scratch2, |
| 960 Label* gc_required, | 971 Label* gc_required, |
| 961 AllocationFlags flags) { | 972 AllocationFlags flags) { |
| 973 if (!FLAG_inline_new) { |
| 974 if (FLAG_debug_code) { |
| 975 // Trash the registers to simulate an allocation failure. |
| 976 mov(result, Operand(0x7091)); |
| 977 mov(scratch1, Operand(0x7191)); |
| 978 mov(scratch2, Operand(0x7291)); |
| 979 } |
| 980 jmp(gc_required); |
| 981 return; |
| 982 } |
| 983 |
| 962 ASSERT(!result.is(scratch1)); | 984 ASSERT(!result.is(scratch1)); |
| 963 ASSERT(!scratch1.is(scratch2)); | 985 ASSERT(!scratch1.is(scratch2)); |
| 964 | 986 |
| 965 // Load address of new object into result and allocation top address into | 987 // Load address of new object into result and allocation top address into |
| 966 // scratch1. | 988 // scratch1. |
| 967 ExternalReference new_space_allocation_top = | 989 ExternalReference new_space_allocation_top = |
| 968 ExternalReference::new_space_allocation_top_address(); | 990 ExternalReference::new_space_allocation_top_address(); |
| 969 mov(scratch1, Operand(new_space_allocation_top)); | 991 mov(scratch1, Operand(new_space_allocation_top)); |
| 970 if ((flags & RESULT_CONTAINS_TOP) == 0) { | 992 if ((flags & RESULT_CONTAINS_TOP) == 0) { |
| 971 ldr(result, MemOperand(scratch1)); | 993 ldr(result, MemOperand(scratch1)); |
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| 1953 | 1975 |
| 1954 void CodePatcher::Emit(Address addr) { | 1976 void CodePatcher::Emit(Address addr) { |
| 1955 masm()->emit(reinterpret_cast<Instr>(addr)); | 1977 masm()->emit(reinterpret_cast<Instr>(addr)); |
| 1956 } | 1978 } |
| 1957 #endif // ENABLE_DEBUGGER_SUPPORT | 1979 #endif // ENABLE_DEBUGGER_SUPPORT |
| 1958 | 1980 |
| 1959 | 1981 |
| 1960 } } // namespace v8::internal | 1982 } } // namespace v8::internal |
| 1961 | 1983 |
| 1962 #endif // V8_TARGET_ARCH_ARM | 1984 #endif // V8_TARGET_ARCH_ARM |
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