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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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5984 __ ret(2 * kPointerSize); | 5984 __ ret(2 * kPointerSize); |
5985 } | 5985 } |
5986 | 5986 |
5987 | 5987 |
5988 struct AheadOfTimeWriteBarrierStubList { | 5988 struct AheadOfTimeWriteBarrierStubList { |
5989 Register object, value, address; | 5989 Register object, value, address; |
5990 RememberedSetAction action; | 5990 RememberedSetAction action; |
5991 }; | 5991 }; |
5992 | 5992 |
5993 | 5993 |
5994 #define REG(Name) { kRegister_ ## Name ## _Code } | |
5995 | |
5996 struct AheadOfTimeWriteBarrierStubList kAheadOfTime[] = { | 5994 struct AheadOfTimeWriteBarrierStubList kAheadOfTime[] = { |
5997 // Used in RegExpExecStub. | 5995 // Used in RegExpExecStub. |
5998 { REG(rbx), REG(rax), REG(rdi), EMIT_REMEMBERED_SET }, | 5996 { rbx, rax, rdi, EMIT_REMEMBERED_SET }, |
5999 // Used in CompileArrayPushCall. | 5997 // Used in CompileArrayPushCall. |
6000 { REG(rbx), REG(rcx), REG(rdx), EMIT_REMEMBERED_SET }, | 5998 { rbx, rcx, rdx, EMIT_REMEMBERED_SET }, |
6001 // Used in CompileStoreGlobal. | 5999 // Used in CompileStoreGlobal. |
6002 { REG(rbx), REG(rcx), REG(rdx), OMIT_REMEMBERED_SET }, | 6000 { rbx, rcx, rdx, OMIT_REMEMBERED_SET }, |
6003 // Used in StoreStubCompiler::CompileStoreField and | 6001 // Used in StoreStubCompiler::CompileStoreField and |
6004 // KeyedStoreStubCompiler::CompileStoreField via GenerateStoreField. | 6002 // KeyedStoreStubCompiler::CompileStoreField via GenerateStoreField. |
6005 { REG(rdx), REG(rcx), REG(rbx), EMIT_REMEMBERED_SET }, | 6003 { rdx, rcx, rbx, EMIT_REMEMBERED_SET }, |
6006 // GenerateStoreField calls the stub with two different permutations of | 6004 // GenerateStoreField calls the stub with two different permutations of |
6007 // registers. This is the second. | 6005 // registers. This is the second. |
6008 { REG(rbx), REG(rcx), REG(rdx), EMIT_REMEMBERED_SET }, | 6006 { rbx, rcx, rdx, EMIT_REMEMBERED_SET }, |
6009 // StoreIC::GenerateNormal via GenerateDictionaryStore. | 6007 // StoreIC::GenerateNormal via GenerateDictionaryStore. |
6010 { REG(rbx), REG(r8), REG(r9), EMIT_REMEMBERED_SET }, | 6008 { rbx, r8, r9, EMIT_REMEMBERED_SET }, |
6011 // KeyedStoreIC::GenerateGeneric. | 6009 // KeyedStoreIC::GenerateGeneric. |
6012 { REG(rbx), REG(rdx), REG(rcx), EMIT_REMEMBERED_SET}, | 6010 { rbx, rdx, rcx, EMIT_REMEMBERED_SET}, |
6013 // KeyedStoreStubCompiler::GenerateStoreFastElement. | 6011 // KeyedStoreStubCompiler::GenerateStoreFastElement. |
6014 { REG(rdi), REG(rbx), REG(rcx), EMIT_REMEMBERED_SET}, | 6012 { rdi, rbx, rcx, EMIT_REMEMBERED_SET}, |
6015 { REG(rdx), REG(rdi), REG(rbx), EMIT_REMEMBERED_SET}, | 6013 { rdx, rdi, rbx, EMIT_REMEMBERED_SET}, |
6016 // ElementsTransitionGenerator::GenerateSmiOnlyToObject | 6014 // ElementsTransitionGenerator::GenerateSmiOnlyToObject |
6017 // and ElementsTransitionGenerator::GenerateSmiOnlyToObject | 6015 // and ElementsTransitionGenerator::GenerateSmiOnlyToObject |
6018 // and ElementsTransitionGenerator::GenerateDoubleToObject | 6016 // and ElementsTransitionGenerator::GenerateDoubleToObject |
6019 { REG(rdx), REG(rbx), REG(rdi), EMIT_REMEMBERED_SET}, | 6017 { rdx, rbx, rdi, EMIT_REMEMBERED_SET}, |
6020 { REG(rdx), REG(rbx), REG(rdi), OMIT_REMEMBERED_SET}, | 6018 { rdx, rbx, rdi, OMIT_REMEMBERED_SET}, |
6021 // ElementsTransitionGenerator::GenerateSmiOnlyToDouble | 6019 // ElementsTransitionGenerator::GenerateSmiOnlyToDouble |
6022 // and ElementsTransitionGenerator::GenerateDoubleToObject | 6020 // and ElementsTransitionGenerator::GenerateDoubleToObject |
6023 { REG(rdx), REG(r11), REG(r15), EMIT_REMEMBERED_SET}, | 6021 { rdx, r11, r15, EMIT_REMEMBERED_SET}, |
6024 // ElementsTransitionGenerator::GenerateDoubleToObject | 6022 // ElementsTransitionGenerator::GenerateDoubleToObject |
6025 { REG(r11), REG(rax), REG(r15), EMIT_REMEMBERED_SET}, | 6023 { r11, rax, r15, EMIT_REMEMBERED_SET}, |
6026 // StoreArrayLiteralElementStub::Generate | 6024 // StoreArrayLiteralElementStub::Generate |
6027 { REG(rbx), REG(rax), REG(rcx), EMIT_REMEMBERED_SET}, | 6025 { rbx, rax, rcx, EMIT_REMEMBERED_SET}, |
6028 // Null termination. | 6026 // Null termination. |
6029 { REG(no_reg), REG(no_reg), REG(no_reg), EMIT_REMEMBERED_SET} | 6027 { no_reg, no_reg, no_reg, EMIT_REMEMBERED_SET} |
6030 }; | 6028 }; |
6031 | 6029 |
6032 #undef REG | |
6033 | 6030 |
6034 bool RecordWriteStub::IsPregenerated() { | 6031 bool RecordWriteStub::IsPregenerated() { |
6035 for (AheadOfTimeWriteBarrierStubList* entry = kAheadOfTime; | 6032 for (AheadOfTimeWriteBarrierStubList* entry = kAheadOfTime; |
6036 !entry->object.is(no_reg); | 6033 !entry->object.is(no_reg); |
6037 entry++) { | 6034 entry++) { |
6038 if (object_.is(entry->object) && | 6035 if (object_.is(entry->object) && |
6039 value_.is(entry->value) && | 6036 value_.is(entry->value) && |
6040 address_.is(entry->address) && | 6037 address_.is(entry->address) && |
6041 remembered_set_action_ == entry->action && | 6038 remembered_set_action_ == entry->action && |
6042 save_fp_regs_mode_ == kDontSaveFPRegs) { | 6039 save_fp_regs_mode_ == kDontSaveFPRegs) { |
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6346 xmm0, | 6343 xmm0, |
6347 &slow_elements); | 6344 &slow_elements); |
6348 __ ret(0); | 6345 __ ret(0); |
6349 } | 6346 } |
6350 | 6347 |
6351 #undef __ | 6348 #undef __ |
6352 | 6349 |
6353 } } // namespace v8::internal | 6350 } } // namespace v8::internal |
6354 | 6351 |
6355 #endif // V8_TARGET_ARCH_X64 | 6352 #endif // V8_TARGET_ARCH_X64 |
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