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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 // 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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1345 | 1345 |
1346 // Load current lexical context from the stack frame. | 1346 // Load current lexical context from the stack frame. |
1347 ldr(scratch, MemOperand(fp, StandardFrameConstants::kContextOffset)); | 1347 ldr(scratch, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
1348 // In debug mode, make sure the lexical context is set. | 1348 // In debug mode, make sure the lexical context is set. |
1349 #ifdef DEBUG | 1349 #ifdef DEBUG |
1350 cmp(scratch, Operand(0, RelocInfo::NONE)); | 1350 cmp(scratch, Operand(0, RelocInfo::NONE)); |
1351 Check(ne, "we should not have an empty lexical context"); | 1351 Check(ne, "we should not have an empty lexical context"); |
1352 #endif | 1352 #endif |
1353 | 1353 |
1354 // Load the native context of the current context. | 1354 // Load the native context of the current context. |
1355 int offset = Context::kHeaderSize + Context::GLOBAL_INDEX * kPointerSize; | 1355 int offset = |
| 1356 Context::kHeaderSize + Context::GLOBAL_OBJECT_INDEX * kPointerSize; |
1356 ldr(scratch, FieldMemOperand(scratch, offset)); | 1357 ldr(scratch, FieldMemOperand(scratch, offset)); |
1357 ldr(scratch, FieldMemOperand(scratch, GlobalObject::kNativeContextOffset)); | 1358 ldr(scratch, FieldMemOperand(scratch, GlobalObject::kNativeContextOffset)); |
1358 | 1359 |
1359 // Check the context is a native context. | 1360 // Check the context is a native context. |
1360 if (emit_debug_code()) { | 1361 if (emit_debug_code()) { |
1361 // TODO(119): avoid push(holder_reg)/pop(holder_reg) | 1362 // TODO(119): avoid push(holder_reg)/pop(holder_reg) |
1362 // Cannot use ip as a temporary in this verification code. Due to the fact | 1363 // Cannot use ip as a temporary in this verification code. Due to the fact |
1363 // that ip is clobbered as part of cmp with an object Operand. | 1364 // that ip is clobbered as part of cmp with an object Operand. |
1364 push(holder_reg); // Temporarily save holder on the stack. | 1365 push(holder_reg); // Temporarily save holder on the stack. |
1365 // Read the first word and compare to the native_context_map. | 1366 // Read the first word and compare to the native_context_map. |
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2709 ASSERT(flag == JUMP_FUNCTION); | 2710 ASSERT(flag == JUMP_FUNCTION); |
2710 SetCallKind(r5, CALL_AS_METHOD); | 2711 SetCallKind(r5, CALL_AS_METHOD); |
2711 Jump(r2); | 2712 Jump(r2); |
2712 } | 2713 } |
2713 } | 2714 } |
2714 | 2715 |
2715 | 2716 |
2716 void MacroAssembler::GetBuiltinFunction(Register target, | 2717 void MacroAssembler::GetBuiltinFunction(Register target, |
2717 Builtins::JavaScript id) { | 2718 Builtins::JavaScript id) { |
2718 // Load the builtins object into target register. | 2719 // Load the builtins object into target register. |
2719 ldr(target, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX))); | 2720 ldr(target, |
| 2721 MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); |
2720 ldr(target, FieldMemOperand(target, GlobalObject::kBuiltinsOffset)); | 2722 ldr(target, FieldMemOperand(target, GlobalObject::kBuiltinsOffset)); |
2721 // Load the JavaScript builtin function from the builtins object. | 2723 // Load the JavaScript builtin function from the builtins object. |
2722 ldr(target, FieldMemOperand(target, | 2724 ldr(target, FieldMemOperand(target, |
2723 JSBuiltinsObject::OffsetOfFunctionWithId(id))); | 2725 JSBuiltinsObject::OffsetOfFunctionWithId(id))); |
2724 } | 2726 } |
2725 | 2727 |
2726 | 2728 |
2727 void MacroAssembler::GetBuiltinEntry(Register target, Builtins::JavaScript id) { | 2729 void MacroAssembler::GetBuiltinEntry(Register target, Builtins::JavaScript id) { |
2728 ASSERT(!target.is(r1)); | 2730 ASSERT(!target.is(r1)); |
2729 GetBuiltinFunction(r1, id); | 2731 GetBuiltinFunction(r1, id); |
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2875 } | 2877 } |
2876 | 2878 |
2877 | 2879 |
2878 void MacroAssembler::LoadTransitionedArrayMapConditional( | 2880 void MacroAssembler::LoadTransitionedArrayMapConditional( |
2879 ElementsKind expected_kind, | 2881 ElementsKind expected_kind, |
2880 ElementsKind transitioned_kind, | 2882 ElementsKind transitioned_kind, |
2881 Register map_in_out, | 2883 Register map_in_out, |
2882 Register scratch, | 2884 Register scratch, |
2883 Label* no_map_match) { | 2885 Label* no_map_match) { |
2884 // Load the global or builtins object from the current context. | 2886 // Load the global or builtins object from the current context. |
2885 ldr(scratch, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX))); | 2887 ldr(scratch, |
| 2888 MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); |
2886 ldr(scratch, FieldMemOperand(scratch, GlobalObject::kNativeContextOffset)); | 2889 ldr(scratch, FieldMemOperand(scratch, GlobalObject::kNativeContextOffset)); |
2887 | 2890 |
2888 // Check that the function's map is the same as the expected cached map. | 2891 // Check that the function's map is the same as the expected cached map. |
2889 ldr(scratch, | 2892 ldr(scratch, |
2890 MemOperand(scratch, | 2893 MemOperand(scratch, |
2891 Context::SlotOffset(Context::JS_ARRAY_MAPS_INDEX))); | 2894 Context::SlotOffset(Context::JS_ARRAY_MAPS_INDEX))); |
2892 size_t offset = expected_kind * kPointerSize + | 2895 size_t offset = expected_kind * kPointerSize + |
2893 FixedArrayBase::kHeaderSize; | 2896 FixedArrayBase::kHeaderSize; |
2894 ldr(ip, FieldMemOperand(scratch, offset)); | 2897 ldr(ip, FieldMemOperand(scratch, offset)); |
2895 cmp(map_in_out, ip); | 2898 cmp(map_in_out, ip); |
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2922 map_out, | 2925 map_out, |
2923 scratch, | 2926 scratch, |
2924 &done); | 2927 &done); |
2925 } | 2928 } |
2926 bind(&done); | 2929 bind(&done); |
2927 } | 2930 } |
2928 | 2931 |
2929 | 2932 |
2930 void MacroAssembler::LoadGlobalFunction(int index, Register function) { | 2933 void MacroAssembler::LoadGlobalFunction(int index, Register function) { |
2931 // Load the global or builtins object from the current context. | 2934 // Load the global or builtins object from the current context. |
2932 ldr(function, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX))); | 2935 ldr(function, |
| 2936 MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); |
2933 // Load the native context from the global or builtins object. | 2937 // Load the native context from the global or builtins object. |
2934 ldr(function, FieldMemOperand(function, | 2938 ldr(function, FieldMemOperand(function, |
2935 GlobalObject::kNativeContextOffset)); | 2939 GlobalObject::kNativeContextOffset)); |
2936 // Load the function from the native context. | 2940 // Load the function from the native context. |
2937 ldr(function, MemOperand(function, Context::SlotOffset(index))); | 2941 ldr(function, MemOperand(function, Context::SlotOffset(index))); |
2938 } | 2942 } |
2939 | 2943 |
2940 | 2944 |
2941 void MacroAssembler::LoadGlobalFunctionInitialMap(Register function, | 2945 void MacroAssembler::LoadGlobalFunctionInitialMap(Register function, |
2942 Register map, | 2946 Register map, |
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3820 void CodePatcher::EmitCondition(Condition cond) { | 3824 void CodePatcher::EmitCondition(Condition cond) { |
3821 Instr instr = Assembler::instr_at(masm_.pc_); | 3825 Instr instr = Assembler::instr_at(masm_.pc_); |
3822 instr = (instr & ~kCondMask) | cond; | 3826 instr = (instr & ~kCondMask) | cond; |
3823 masm_.emit(instr); | 3827 masm_.emit(instr); |
3824 } | 3828 } |
3825 | 3829 |
3826 | 3830 |
3827 } } // namespace v8::internal | 3831 } } // namespace v8::internal |
3828 | 3832 |
3829 #endif // V8_TARGET_ARCH_ARM | 3833 #endif // V8_TARGET_ARCH_ARM |
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