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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #if V8_TARGET_ARCH_MIPS | 5 #if V8_TARGET_ARCH_MIPS |
6 | 6 |
7 // Note on Mips implementation: | 7 // Note on Mips implementation: |
8 // | 8 // |
9 // The result_register() for mips is the 'v0' register, which is defined | 9 // The result_register() for mips is the 'v0' register, which is defined |
10 // by the ABI to contain function return values. However, the first | 10 // by the ABI to contain function return values. However, the first |
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1117 __ jmp(&loop); | 1117 __ jmp(&loop); |
1118 | 1118 |
1119 __ bind(&no_descriptors); | 1119 __ bind(&no_descriptors); |
1120 __ Drop(1); | 1120 __ Drop(1); |
1121 __ jmp(&exit); | 1121 __ jmp(&exit); |
1122 | 1122 |
1123 // We got a fixed array in register v0. Iterate through that. | 1123 // We got a fixed array in register v0. Iterate through that. |
1124 Label non_proxy; | 1124 Label non_proxy; |
1125 __ bind(&fixed_array); | 1125 __ bind(&fixed_array); |
1126 | 1126 |
1127 __ li(a1, FeedbackVector()); | 1127 __ EmitLoadTypeFeedbackVector(a1); |
1128 __ li(a2, Operand(TypeFeedbackVector::MegamorphicSentinel(isolate()))); | 1128 __ li(a2, Operand(TypeFeedbackVector::MegamorphicSentinel(isolate()))); |
1129 int vector_index = FeedbackVector()->GetIndex(slot); | 1129 int vector_index = SmiFromSlot(slot)->value(); |
1130 __ sw(a2, FieldMemOperand(a1, FixedArray::OffsetOfElementAt(vector_index))); | 1130 __ sw(a2, FieldMemOperand(a1, FixedArray::OffsetOfElementAt(vector_index))); |
1131 | 1131 |
1132 __ li(a1, Operand(Smi::FromInt(1))); // Smi indicates slow check | 1132 __ li(a1, Operand(Smi::FromInt(1))); // Smi indicates slow check |
1133 __ lw(a2, MemOperand(sp, 0 * kPointerSize)); // Get enumerated object | 1133 __ lw(a2, MemOperand(sp, 0 * kPointerSize)); // Get enumerated object |
1134 STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_SPEC_OBJECT_TYPE); | 1134 STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_SPEC_OBJECT_TYPE); |
1135 __ GetObjectType(a2, a3, a3); | 1135 __ GetObjectType(a2, a3, a3); |
1136 __ Branch(&non_proxy, gt, a3, Operand(LAST_JS_PROXY_TYPE)); | 1136 __ Branch(&non_proxy, gt, a3, Operand(LAST_JS_PROXY_TYPE)); |
1137 __ li(a1, Operand(Smi::FromInt(0))); // Zero indicates proxy | 1137 __ li(a1, Operand(Smi::FromInt(0))); // Zero indicates proxy |
1138 __ bind(&non_proxy); | 1138 __ bind(&non_proxy); |
1139 __ Push(a1, v0); // Smi and array | 1139 __ Push(a1, v0); // Smi and array |
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3170 | 3170 |
3171 // Call the construct call builtin that handles allocation and | 3171 // Call the construct call builtin that handles allocation and |
3172 // constructor invocation. | 3172 // constructor invocation. |
3173 SetConstructCallPosition(expr); | 3173 SetConstructCallPosition(expr); |
3174 | 3174 |
3175 // Load function and argument count into a1 and a0. | 3175 // Load function and argument count into a1 and a0. |
3176 __ li(a0, Operand(arg_count)); | 3176 __ li(a0, Operand(arg_count)); |
3177 __ lw(a1, MemOperand(sp, arg_count * kPointerSize)); | 3177 __ lw(a1, MemOperand(sp, arg_count * kPointerSize)); |
3178 | 3178 |
3179 // Record call targets in unoptimized code. | 3179 // Record call targets in unoptimized code. |
3180 __ li(a2, FeedbackVector()); | 3180 __ EmitLoadTypeFeedbackVector(a2); |
3181 __ li(a3, Operand(SmiFromSlot(expr->CallNewFeedbackSlot()))); | 3181 __ li(a3, Operand(SmiFromSlot(expr->CallNewFeedbackSlot()))); |
3182 | 3182 |
3183 CallConstructStub stub(isolate(), RECORD_CONSTRUCTOR_TARGET); | 3183 CallConstructStub stub(isolate(), RECORD_CONSTRUCTOR_TARGET); |
3184 __ Call(stub.GetCode(), RelocInfo::CONSTRUCT_CALL); | 3184 __ Call(stub.GetCode(), RelocInfo::CONSTRUCT_CALL); |
3185 PrepareForBailoutForId(expr->ReturnId(), TOS_REG); | 3185 PrepareForBailoutForId(expr->ReturnId(), TOS_REG); |
3186 // Restore context register. | 3186 // Restore context register. |
3187 __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); | 3187 __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
3188 context()->Plug(v0); | 3188 context()->Plug(v0); |
3189 } | 3189 } |
3190 | 3190 |
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3210 | 3210 |
3211 // Load original constructor into t0. | 3211 // Load original constructor into t0. |
3212 VisitForAccumulatorValue(super_call_ref->new_target_var()); | 3212 VisitForAccumulatorValue(super_call_ref->new_target_var()); |
3213 __ mov(t0, result_register()); | 3213 __ mov(t0, result_register()); |
3214 | 3214 |
3215 // Load function and argument count into a1 and a0. | 3215 // Load function and argument count into a1 and a0. |
3216 __ li(a0, Operand(arg_count)); | 3216 __ li(a0, Operand(arg_count)); |
3217 __ lw(a1, MemOperand(sp, arg_count * kPointerSize)); | 3217 __ lw(a1, MemOperand(sp, arg_count * kPointerSize)); |
3218 | 3218 |
3219 // Record call targets in unoptimized code. | 3219 // Record call targets in unoptimized code. |
3220 __ li(a2, FeedbackVector()); | 3220 __ EmitLoadTypeFeedbackVector(a2); |
3221 __ li(a3, Operand(SmiFromSlot(expr->CallFeedbackSlot()))); | 3221 __ li(a3, Operand(SmiFromSlot(expr->CallFeedbackSlot()))); |
3222 | 3222 |
3223 CallConstructStub stub(isolate(), SUPER_CALL_RECORD_TARGET); | 3223 CallConstructStub stub(isolate(), SUPER_CALL_RECORD_TARGET); |
3224 __ Call(stub.GetCode(), RelocInfo::CONSTRUCT_CALL); | 3224 __ Call(stub.GetCode(), RelocInfo::CONSTRUCT_CALL); |
3225 | 3225 |
3226 RecordJSReturnSite(expr); | 3226 RecordJSReturnSite(expr); |
3227 | 3227 |
3228 // Restore context register. | 3228 // Restore context register. |
3229 __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); | 3229 __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
3230 context()->Plug(v0); | 3230 context()->Plug(v0); |
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5224 reinterpret_cast<uint32_t>( | 5224 reinterpret_cast<uint32_t>( |
5225 isolate->builtins()->OsrAfterStackCheck()->entry())); | 5225 isolate->builtins()->OsrAfterStackCheck()->entry())); |
5226 return OSR_AFTER_STACK_CHECK; | 5226 return OSR_AFTER_STACK_CHECK; |
5227 } | 5227 } |
5228 | 5228 |
5229 | 5229 |
5230 } // namespace internal | 5230 } // namespace internal |
5231 } // namespace v8 | 5231 } // namespace v8 |
5232 | 5232 |
5233 #endif // V8_TARGET_ARCH_MIPS | 5233 #endif // V8_TARGET_ARCH_MIPS |
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