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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 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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171 } | 171 } |
172 | 172 |
173 | 173 |
174 void MacroAssembler::Drop(int count, Condition cond) { | 174 void MacroAssembler::Drop(int count, Condition cond) { |
175 if (count > 0) { | 175 if (count > 0) { |
176 add(sp, sp, Operand(count * kPointerSize), LeaveCC, cond); | 176 add(sp, sp, Operand(count * kPointerSize), LeaveCC, cond); |
177 } | 177 } |
178 } | 178 } |
179 | 179 |
180 | 180 |
181 void MacroAssembler::Ret(int drop, Condition cond) { | |
182 Drop(drop, cond); | |
183 Ret(cond); | |
184 } | |
185 | |
186 | |
187 void MacroAssembler::Swap(Register reg1, | 181 void MacroAssembler::Swap(Register reg1, |
188 Register reg2, | 182 Register reg2, |
189 Register scratch, | 183 Register scratch, |
190 Condition cond) { | 184 Condition cond) { |
191 if (scratch.is(no_reg)) { | 185 if (scratch.is(no_reg)) { |
192 eor(reg1, reg1, Operand(reg2), LeaveCC, cond); | 186 eor(reg1, reg1, Operand(reg2), LeaveCC, cond); |
193 eor(reg2, reg2, Operand(reg1), LeaveCC, cond); | 187 eor(reg2, reg2, Operand(reg1), LeaveCC, cond); |
194 eor(reg1, reg1, Operand(reg2), LeaveCC, cond); | 188 eor(reg1, reg1, Operand(reg2), LeaveCC, cond); |
195 } else { | 189 } else { |
196 mov(scratch, reg1, LeaveCC, cond); | 190 mov(scratch, reg1, LeaveCC, cond); |
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820 // code field in the function to allow recompilation to take effect | 814 // code field in the function to allow recompilation to take effect |
821 // without changing any of the call sites. | 815 // without changing any of the call sites. |
822 ldr(r3, FieldMemOperand(r1, JSFunction::kCodeEntryOffset)); | 816 ldr(r3, FieldMemOperand(r1, JSFunction::kCodeEntryOffset)); |
823 InvokeCode(r3, expected, actual, flag); | 817 InvokeCode(r3, expected, actual, flag); |
824 } else { | 818 } else { |
825 InvokeCode(code, expected, actual, RelocInfo::CODE_TARGET, flag); | 819 InvokeCode(code, expected, actual, RelocInfo::CODE_TARGET, flag); |
826 } | 820 } |
827 } | 821 } |
828 | 822 |
829 | 823 |
830 void MacroAssembler::IsObjectJSObjectType(Register heap_object, | |
831 Register map, | |
832 Register scratch, | |
833 Label* fail) { | |
834 ldr(map, FieldMemOperand(heap_object, HeapObject::kMapOffset)); | |
835 IsInstanceJSObjectType(map, scratch, fail); | |
836 } | |
837 | |
838 | |
839 void MacroAssembler::IsInstanceJSObjectType(Register map, | |
840 Register scratch, | |
841 Label* fail) { | |
842 ldrb(scratch, FieldMemOperand(map, Map::kInstanceTypeOffset)); | |
843 cmp(scratch, Operand(FIRST_JS_OBJECT_TYPE)); | |
844 b(lt, fail); | |
845 cmp(scratch, Operand(LAST_JS_OBJECT_TYPE)); | |
846 b(gt, fail); | |
847 } | |
848 | |
849 | |
850 void MacroAssembler::IsObjectJSStringType(Register object, | |
851 Register scratch, | |
852 Label* fail) { | |
853 ASSERT(kNotStringTag != 0); | |
854 | |
855 ldr(scratch, FieldMemOperand(object, HeapObject::kMapOffset)); | |
856 ldrb(scratch, FieldMemOperand(scratch, Map::kInstanceTypeOffset)); | |
857 tst(scratch, Operand(kIsNotStringMask)); | |
858 b(nz, fail); | |
859 } | |
860 | |
861 | |
862 #ifdef ENABLE_DEBUGGER_SUPPORT | 824 #ifdef ENABLE_DEBUGGER_SUPPORT |
863 void MacroAssembler::DebugBreak() { | 825 void MacroAssembler::DebugBreak() { |
864 ASSERT(allow_stub_calls()); | 826 ASSERT(allow_stub_calls()); |
865 mov(r0, Operand(0, RelocInfo::NONE)); | 827 mov(r0, Operand(0, RelocInfo::NONE)); |
866 mov(r1, Operand(ExternalReference(Runtime::kDebugBreak))); | 828 mov(r1, Operand(ExternalReference(Runtime::kDebugBreak))); |
867 CEntryStub ces(1); | 829 CEntryStub ces(1); |
868 Call(ces.GetCode(), RelocInfo::DEBUG_BREAK); | 830 Call(ces.GetCode(), RelocInfo::DEBUG_BREAK); |
869 } | 831 } |
870 #endif | 832 #endif |
871 | 833 |
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2145 | 2107 |
2146 void CodePatcher::Emit(Address addr) { | 2108 void CodePatcher::Emit(Address addr) { |
2147 masm()->emit(reinterpret_cast<Instr>(addr)); | 2109 masm()->emit(reinterpret_cast<Instr>(addr)); |
2148 } | 2110 } |
2149 #endif // ENABLE_DEBUGGER_SUPPORT | 2111 #endif // ENABLE_DEBUGGER_SUPPORT |
2150 | 2112 |
2151 | 2113 |
2152 } } // namespace v8::internal | 2114 } } // namespace v8::internal |
2153 | 2115 |
2154 #endif // V8_TARGET_ARCH_ARM | 2116 #endif // V8_TARGET_ARCH_ARM |
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