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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_MIPS64 | 5 #if V8_TARGET_ARCH_MIPS64 |
| 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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| 1048 __ bind(&convert); | 1048 __ bind(&convert); |
| 1049 ToObjectStub stub(isolate()); | 1049 ToObjectStub stub(isolate()); |
| 1050 __ CallStub(&stub); | 1050 __ CallStub(&stub); |
| 1051 __ mov(a0, v0); | 1051 __ mov(a0, v0); |
| 1052 __ bind(&done_convert); | 1052 __ bind(&done_convert); |
| 1053 PrepareForBailoutForId(stmt->ToObjectId(), TOS_REG); | 1053 PrepareForBailoutForId(stmt->ToObjectId(), TOS_REG); |
| 1054 __ push(a0); | 1054 __ push(a0); |
| 1055 | 1055 |
| 1056 // Check for proxies. | 1056 // Check for proxies. |
| 1057 Label call_runtime; | 1057 Label call_runtime; |
| 1058 STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_JS_RECEIVER_TYPE); | |
| 1059 __ GetObjectType(a0, a1, a1); | 1058 __ GetObjectType(a0, a1, a1); |
| 1060 __ Branch(&call_runtime, le, a1, Operand(LAST_JS_PROXY_TYPE)); | 1059 __ Branch(&call_runtime, eq, a1, Operand(JS_PROXY_TYPE)); |
| 1061 | 1060 |
| 1062 // Check cache validity in generated code. This is a fast case for | 1061 // Check cache validity in generated code. This is a fast case for |
| 1063 // the JSObject::IsSimpleEnum cache validity checks. If we cannot | 1062 // the JSObject::IsSimpleEnum cache validity checks. If we cannot |
| 1064 // guarantee cache validity, call the runtime system to check cache | 1063 // guarantee cache validity, call the runtime system to check cache |
| 1065 // validity or get the property names in a fixed array. | 1064 // validity or get the property names in a fixed array. |
| 1066 __ CheckEnumCache(null_value, &call_runtime); | 1065 __ CheckEnumCache(null_value, &call_runtime); |
| 1067 | 1066 |
| 1068 // The enum cache is valid. Load the map of the object being | 1067 // The enum cache is valid. Load the map of the object being |
| 1069 // iterated over and use the cache for the iteration. | 1068 // iterated over and use the cache for the iteration. |
| 1070 Label use_cache; | 1069 Label use_cache; |
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| 1110 Label non_proxy; | 1109 Label non_proxy; |
| 1111 __ bind(&fixed_array); | 1110 __ bind(&fixed_array); |
| 1112 | 1111 |
| 1113 __ EmitLoadTypeFeedbackVector(a1); | 1112 __ EmitLoadTypeFeedbackVector(a1); |
| 1114 __ li(a2, Operand(TypeFeedbackVector::MegamorphicSentinel(isolate()))); | 1113 __ li(a2, Operand(TypeFeedbackVector::MegamorphicSentinel(isolate()))); |
| 1115 int vector_index = SmiFromSlot(slot)->value(); | 1114 int vector_index = SmiFromSlot(slot)->value(); |
| 1116 __ sd(a2, FieldMemOperand(a1, FixedArray::OffsetOfElementAt(vector_index))); | 1115 __ sd(a2, FieldMemOperand(a1, FixedArray::OffsetOfElementAt(vector_index))); |
| 1117 | 1116 |
| 1118 __ li(a1, Operand(Smi::FromInt(1))); // Smi indicates slow check | 1117 __ li(a1, Operand(Smi::FromInt(1))); // Smi indicates slow check |
| 1119 __ ld(a2, MemOperand(sp, 0 * kPointerSize)); // Get enumerated object | 1118 __ ld(a2, MemOperand(sp, 0 * kPointerSize)); // Get enumerated object |
| 1120 STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_JS_RECEIVER_TYPE); | 1119 STATIC_ASSERT(JS_PROXY_TYPE == FIRST_JS_RECEIVER_TYPE); |
| 1121 __ GetObjectType(a2, a3, a3); | 1120 __ GetObjectType(a2, a3, a3); |
| 1122 __ Branch(&non_proxy, gt, a3, Operand(LAST_JS_PROXY_TYPE)); | 1121 __ Branch(&non_proxy, gt, a3, Operand(JS_PROXY_TYPE)); |
| 1123 __ li(a1, Operand(Smi::FromInt(0))); // Zero indicates proxy | 1122 __ li(a1, Operand(Smi::FromInt(0))); // Zero indicates proxy |
| 1124 __ bind(&non_proxy); | 1123 __ bind(&non_proxy); |
| 1125 __ Push(a1, v0); // Smi and array | 1124 __ Push(a1, v0); // Smi and array |
| 1126 __ ld(a1, FieldMemOperand(v0, FixedArray::kLengthOffset)); | 1125 __ ld(a1, FieldMemOperand(v0, FixedArray::kLengthOffset)); |
| 1127 __ li(a0, Operand(Smi::FromInt(0))); | 1126 __ li(a0, Operand(Smi::FromInt(0))); |
| 1128 __ Push(a1, a0); // Fixed array length (as smi) and initial index. | 1127 __ Push(a1, a0); // Fixed array length (as smi) and initial index. |
| 1129 | 1128 |
| 1130 // Generate code for doing the condition check. | 1129 // Generate code for doing the condition check. |
| 1131 __ bind(&loop); | 1130 __ bind(&loop); |
| 1132 SetExpressionAsStatementPosition(stmt->each()); | 1131 SetExpressionAsStatementPosition(stmt->each()); |
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| 3261 VisitForAccumulatorValue(args->at(0)); | 3260 VisitForAccumulatorValue(args->at(0)); |
| 3262 | 3261 |
| 3263 Label materialize_true, materialize_false; | 3262 Label materialize_true, materialize_false; |
| 3264 Label* if_true = NULL; | 3263 Label* if_true = NULL; |
| 3265 Label* if_false = NULL; | 3264 Label* if_false = NULL; |
| 3266 Label* fall_through = NULL; | 3265 Label* fall_through = NULL; |
| 3267 context()->PrepareTest(&materialize_true, &materialize_false, &if_true, | 3266 context()->PrepareTest(&materialize_true, &materialize_false, &if_true, |
| 3268 &if_false, &fall_through); | 3267 &if_false, &fall_through); |
| 3269 | 3268 |
| 3270 __ JumpIfSmi(v0, if_false); | 3269 __ JumpIfSmi(v0, if_false); |
| 3271 Register map = a1; | 3270 __ GetObjectType(v0, a1, a1); |
| 3272 Register type_reg = a2; | |
| 3273 __ GetObjectType(v0, map, type_reg); | |
| 3274 __ Subu(type_reg, type_reg, Operand(FIRST_JS_PROXY_TYPE)); | |
| 3275 PrepareForBailoutBeforeSplit(expr, true, if_true, if_false); | 3271 PrepareForBailoutBeforeSplit(expr, true, if_true, if_false); |
| 3276 Split(ls, type_reg, Operand(LAST_JS_PROXY_TYPE - FIRST_JS_PROXY_TYPE), | 3272 Split(eq, a1, Operand(JS_PROXY_TYPE), if_true, if_false, fall_through); |
| 3277 if_true, if_false, fall_through); | |
| 3278 | 3273 |
| 3279 context()->Plug(if_true, if_false); | 3274 context()->Plug(if_true, if_false); |
| 3280 } | 3275 } |
| 3281 | 3276 |
| 3282 | 3277 |
| 3283 void FullCodeGenerator::EmitObjectEquals(CallRuntime* expr) { | 3278 void FullCodeGenerator::EmitObjectEquals(CallRuntime* expr) { |
| 3284 ZoneList<Expression*>* args = expr->arguments(); | 3279 ZoneList<Expression*>* args = expr->arguments(); |
| 3285 DCHECK(args->length() == 2); | 3280 DCHECK(args->length() == 2); |
| 3286 | 3281 |
| 3287 // Load the two objects into registers and perform the comparison. | 3282 // Load the two objects into registers and perform the comparison. |
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| 4946 reinterpret_cast<uint64_t>( | 4941 reinterpret_cast<uint64_t>( |
| 4947 isolate->builtins()->OsrAfterStackCheck()->entry())); | 4942 isolate->builtins()->OsrAfterStackCheck()->entry())); |
| 4948 return OSR_AFTER_STACK_CHECK; | 4943 return OSR_AFTER_STACK_CHECK; |
| 4949 } | 4944 } |
| 4950 | 4945 |
| 4951 | 4946 |
| 4952 } // namespace internal | 4947 } // namespace internal |
| 4953 } // namespace v8 | 4948 } // namespace v8 |
| 4954 | 4949 |
| 4955 #endif // V8_TARGET_ARCH_MIPS64 | 4950 #endif // V8_TARGET_ARCH_MIPS64 |
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