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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_ARM | 5 #if V8_TARGET_ARCH_ARM |
6 | 6 |
7 #include "src/ast/scopes.h" | 7 #include "src/ast/scopes.h" |
8 #include "src/code-factory.h" | 8 #include "src/code-factory.h" |
9 #include "src/code-stubs.h" | 9 #include "src/code-stubs.h" |
10 #include "src/codegen.h" | 10 #include "src/codegen.h" |
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1045 __ b(ge, &done_convert); | 1045 __ b(ge, &done_convert); |
1046 __ bind(&convert); | 1046 __ bind(&convert); |
1047 ToObjectStub stub(isolate()); | 1047 ToObjectStub stub(isolate()); |
1048 __ CallStub(&stub); | 1048 __ CallStub(&stub); |
1049 __ bind(&done_convert); | 1049 __ bind(&done_convert); |
1050 PrepareForBailoutForId(stmt->ToObjectId(), TOS_REG); | 1050 PrepareForBailoutForId(stmt->ToObjectId(), TOS_REG); |
1051 __ push(r0); | 1051 __ push(r0); |
1052 | 1052 |
1053 // Check for proxies. | 1053 // Check for proxies. |
1054 Label call_runtime; | 1054 Label call_runtime; |
1055 STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_JS_RECEIVER_TYPE); | 1055 __ CompareObjectType(r0, r1, r1, JS_PROXY_TYPE); |
1056 __ CompareObjectType(r0, r1, r1, LAST_JS_PROXY_TYPE); | 1056 __ b(eq, &call_runtime); |
1057 __ b(le, &call_runtime); | |
1058 | 1057 |
1059 // Check cache validity in generated code. This is a fast case for | 1058 // Check cache validity in generated code. This is a fast case for |
1060 // the JSObject::IsSimpleEnum cache validity checks. If we cannot | 1059 // the JSObject::IsSimpleEnum cache validity checks. If we cannot |
1061 // guarantee cache validity, call the runtime system to check cache | 1060 // guarantee cache validity, call the runtime system to check cache |
1062 // validity or get the property names in a fixed array. | 1061 // validity or get the property names in a fixed array. |
1063 __ CheckEnumCache(null_value, &call_runtime); | 1062 __ CheckEnumCache(null_value, &call_runtime); |
1064 | 1063 |
1065 // The enum cache is valid. Load the map of the object being | 1064 // The enum cache is valid. Load the map of the object being |
1066 // iterated over and use the cache for the iteration. | 1065 // iterated over and use the cache for the iteration. |
1067 Label use_cache; | 1066 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(r1); | 1112 __ EmitLoadTypeFeedbackVector(r1); |
1114 __ mov(r2, Operand(TypeFeedbackVector::MegamorphicSentinel(isolate()))); | 1113 __ mov(r2, Operand(TypeFeedbackVector::MegamorphicSentinel(isolate()))); |
1115 int vector_index = SmiFromSlot(slot)->value(); | 1114 int vector_index = SmiFromSlot(slot)->value(); |
1116 __ str(r2, FieldMemOperand(r1, FixedArray::OffsetOfElementAt(vector_index))); | 1115 __ str(r2, FieldMemOperand(r1, FixedArray::OffsetOfElementAt(vector_index))); |
1117 | 1116 |
1118 __ mov(r1, Operand(Smi::FromInt(1))); // Smi indicates slow check | 1117 __ mov(r1, Operand(Smi::FromInt(1))); // Smi indicates slow check |
1119 __ ldr(r2, MemOperand(sp, 0 * kPointerSize)); // Get enumerated object | 1118 __ ldr(r2, 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 __ CompareObjectType(r2, r3, r3, LAST_JS_PROXY_TYPE); | 1120 __ CompareObjectType(r2, r3, r3, JS_PROXY_TYPE); |
1122 __ b(gt, &non_proxy); | 1121 __ b(gt, &non_proxy); |
1123 __ mov(r1, Operand(Smi::FromInt(0))); // Zero indicates proxy | 1122 __ mov(r1, Operand(Smi::FromInt(0))); // Zero indicates proxy |
1124 __ bind(&non_proxy); | 1123 __ bind(&non_proxy); |
1125 __ Push(r1, r0); // Smi and array | 1124 __ Push(r1, r0); // Smi and array |
1126 __ ldr(r1, FieldMemOperand(r0, FixedArray::kLengthOffset)); | 1125 __ ldr(r1, FieldMemOperand(r0, FixedArray::kLengthOffset)); |
1127 __ mov(r0, Operand(Smi::FromInt(0))); | 1126 __ mov(r0, Operand(Smi::FromInt(0))); |
1128 __ Push(r1, r0); // Fixed array length (as smi) and initial index. | 1127 __ Push(r1, r0); // 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); |
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3255 VisitForAccumulatorValue(args->at(0)); | 3254 VisitForAccumulatorValue(args->at(0)); |
3256 | 3255 |
3257 Label materialize_true, materialize_false; | 3256 Label materialize_true, materialize_false; |
3258 Label* if_true = NULL; | 3257 Label* if_true = NULL; |
3259 Label* if_false = NULL; | 3258 Label* if_false = NULL; |
3260 Label* fall_through = NULL; | 3259 Label* fall_through = NULL; |
3261 context()->PrepareTest(&materialize_true, &materialize_false, &if_true, | 3260 context()->PrepareTest(&materialize_true, &materialize_false, &if_true, |
3262 &if_false, &fall_through); | 3261 &if_false, &fall_through); |
3263 | 3262 |
3264 __ JumpIfSmi(r0, if_false); | 3263 __ JumpIfSmi(r0, if_false); |
3265 Register map = r1; | 3264 __ CompareObjectType(r0, r1, r1, JS_PROXY_TYPE); |
3266 Register type_reg = r2; | |
3267 __ ldr(map, FieldMemOperand(r0, HeapObject::kMapOffset)); | |
3268 __ ldrb(type_reg, FieldMemOperand(map, Map::kInstanceTypeOffset)); | |
3269 __ sub(type_reg, type_reg, Operand(FIRST_JS_PROXY_TYPE)); | |
3270 __ cmp(type_reg, Operand(LAST_JS_PROXY_TYPE - FIRST_JS_PROXY_TYPE)); | |
3271 PrepareForBailoutBeforeSplit(expr, true, if_true, if_false); | 3265 PrepareForBailoutBeforeSplit(expr, true, if_true, if_false); |
3272 Split(ls, if_true, if_false, fall_through); | 3266 Split(eq, if_true, if_false, fall_through); |
3273 | 3267 |
3274 context()->Plug(if_true, if_false); | 3268 context()->Plug(if_true, if_false); |
3275 } | 3269 } |
3276 | 3270 |
3277 | 3271 |
3278 void FullCodeGenerator::EmitObjectEquals(CallRuntime* expr) { | 3272 void FullCodeGenerator::EmitObjectEquals(CallRuntime* expr) { |
3279 ZoneList<Expression*>* args = expr->arguments(); | 3273 ZoneList<Expression*>* args = expr->arguments(); |
3280 DCHECK(args->length() == 2); | 3274 DCHECK(args->length() == 2); |
3281 | 3275 |
3282 // Load the two objects into registers and perform the comparison. | 3276 // Load the two objects into registers and perform the comparison. |
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4973 DCHECK(interrupt_address == | 4967 DCHECK(interrupt_address == |
4974 isolate->builtins()->OsrAfterStackCheck()->entry()); | 4968 isolate->builtins()->OsrAfterStackCheck()->entry()); |
4975 return OSR_AFTER_STACK_CHECK; | 4969 return OSR_AFTER_STACK_CHECK; |
4976 } | 4970 } |
4977 | 4971 |
4978 | 4972 |
4979 } // namespace internal | 4973 } // namespace internal |
4980 } // namespace v8 | 4974 } // namespace v8 |
4981 | 4975 |
4982 #endif // V8_TARGET_ARCH_ARM | 4976 #endif // V8_TARGET_ARCH_ARM |
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