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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_MIPS. | 5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_MIPS. |
6 #if defined(TARGET_ARCH_MIPS) | 6 #if defined(TARGET_ARCH_MIPS) |
7 | 7 |
8 #include "vm/intermediate_language.h" | 8 #include "vm/intermediate_language.h" |
9 | 9 |
10 #include "vm/dart_entry.h" | 10 #include "vm/dart_entry.h" |
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2151 // the type arguments. | 2151 // the type arguments. |
2152 Label type_arguments_instantiated; | 2152 Label type_arguments_instantiated; |
2153 const intptr_t len = type_arguments().Length(); | 2153 const intptr_t len = type_arguments().Length(); |
2154 if (type_arguments().IsRawInstantiatedRaw(len)) { | 2154 if (type_arguments().IsRawInstantiatedRaw(len)) { |
2155 __ BranchEqual(instantiator_reg, reinterpret_cast<int32_t>(Object::null()), | 2155 __ BranchEqual(instantiator_reg, reinterpret_cast<int32_t>(Object::null()), |
2156 &type_arguments_instantiated); | 2156 &type_arguments_instantiated); |
2157 } | 2157 } |
2158 | 2158 |
2159 __ LoadObject(T2, type_arguments()); | 2159 __ LoadObject(T2, type_arguments()); |
2160 __ lw(T2, FieldAddress(T2, TypeArguments::instantiations_offset())); | 2160 __ lw(T2, FieldAddress(T2, TypeArguments::instantiations_offset())); |
2161 __ lw(T3, FieldAddress(T2, Array::length_offset())); | |
2162 __ AddImmediate(T2, Array::data_offset() - kHeapObjectTag); | 2161 __ AddImmediate(T2, Array::data_offset() - kHeapObjectTag); |
2163 __ sll(TMP, T3, 1); // T3 is Smi. | 2162 // The instantiations cache is initialized with Object::zero_array() and is |
2164 __ addu(T3, T2, TMP); | 2163 // therefore guaranteed to contain kNoInstantiator. No length check needed. |
2165 Label loop, found, slow_case; | 2164 Label loop, found, slow_case; |
2166 __ Bind(&loop); | 2165 __ Bind(&loop); |
2167 __ BranchUnsignedGreaterEqual(T2, T3, &slow_case); | |
2168 __ lw(T1, Address(T2, 0 * kWordSize)); // Cached instantiator. | 2166 __ lw(T1, Address(T2, 0 * kWordSize)); // Cached instantiator. |
2169 __ beq(T1, T0, &found); | 2167 __ beq(T1, T0, &found); |
2170 __ BranchEqual(T1, Smi::RawValue(StubCode::kNoInstantiator), &slow_case); | 2168 __ BranchEqual(T1, Smi::RawValue(StubCode::kNoInstantiator), &slow_case); |
2171 __ b(&loop); | 2169 __ b(&loop); |
2172 __ delay_slot()->addiu(T2, T2, Immediate(2 * kWordSize)); | 2170 __ delay_slot()->addiu(T2, T2, Immediate(2 * kWordSize)); |
2173 __ Bind(&found); | 2171 __ Bind(&found); |
2174 __ lw(T0, Address(T2, 1 * kWordSize)); // Cached instantiated args. | 2172 __ lw(T0, Address(T2, 1 * kWordSize)); // Cached instantiated args. |
2175 __ b(&type_arguments_instantiated); | 2173 __ b(&type_arguments_instantiated); |
2176 | 2174 |
2177 __ Bind(&slow_case); | 2175 __ Bind(&slow_case); |
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4172 compiler->GenerateCall(token_pos(), | 4170 compiler->GenerateCall(token_pos(), |
4173 &label, | 4171 &label, |
4174 PcDescriptors::kOther, | 4172 PcDescriptors::kOther, |
4175 locs()); | 4173 locs()); |
4176 __ Drop(2); // Discard type arguments and receiver. | 4174 __ Drop(2); // Discard type arguments and receiver. |
4177 } | 4175 } |
4178 | 4176 |
4179 } // namespace dart | 4177 } // namespace dart |
4180 | 4178 |
4181 #endif // defined TARGET_ARCH_MIPS | 4179 #endif // defined TARGET_ARCH_MIPS |
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