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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 #include "src/codegen.h" | 7 #include "src/codegen.h" |
8 #include "src/debug/debug.h" | 8 #include "src/debug/debug.h" |
9 #include "src/deoptimizer.h" | 9 #include "src/deoptimizer.h" |
10 #include "src/full-codegen/full-codegen.h" | 10 #include "src/full-codegen/full-codegen.h" |
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2137 // Load native context into t0. | 2137 // Load native context into t0. |
2138 __ lw(t0, NativeContextMemOperand()); | 2138 __ lw(t0, NativeContextMemOperand()); |
2139 | 2139 |
2140 // Check if argumentsList is an (unmodified) arguments object. | 2140 // Check if argumentsList is an (unmodified) arguments object. |
2141 __ lw(at, ContextMemOperand(t0, Context::SLOPPY_ARGUMENTS_MAP_INDEX)); | 2141 __ lw(at, ContextMemOperand(t0, Context::SLOPPY_ARGUMENTS_MAP_INDEX)); |
2142 __ Branch(&create_arguments, eq, a2, Operand(at)); | 2142 __ Branch(&create_arguments, eq, a2, Operand(at)); |
2143 __ lw(at, ContextMemOperand(t0, Context::STRICT_ARGUMENTS_MAP_INDEX)); | 2143 __ lw(at, ContextMemOperand(t0, Context::STRICT_ARGUMENTS_MAP_INDEX)); |
2144 __ Branch(&create_arguments, eq, a2, Operand(at)); | 2144 __ Branch(&create_arguments, eq, a2, Operand(at)); |
2145 | 2145 |
2146 // Check if argumentsList is a fast JSArray. | 2146 // Check if argumentsList is a fast JSArray. |
2147 __ lw(v0, FieldMemOperand(a2, HeapObject::kMapOffset)); | 2147 __ lbu(v0, FieldMemOperand(a2, Map::kInstanceTypeOffset)); |
2148 __ lbu(v0, FieldMemOperand(v0, Map::kInstanceTypeOffset)); | |
2149 __ Branch(&create_array, eq, v0, Operand(JS_ARRAY_TYPE)); | 2148 __ Branch(&create_array, eq, v0, Operand(JS_ARRAY_TYPE)); |
2150 | 2149 |
2151 // Ask the runtime to create the list (actually a FixedArray). | 2150 // Ask the runtime to create the list (actually a FixedArray). |
2152 __ bind(&create_runtime); | 2151 __ bind(&create_runtime); |
2153 { | 2152 { |
2154 FrameScope scope(masm, StackFrame::INTERNAL); | 2153 FrameScope scope(masm, StackFrame::INTERNAL); |
2155 __ Push(a1, a3, a0); | 2154 __ Push(a1, a3, a0); |
2156 __ CallRuntime(Runtime::kCreateListFromArrayLike); | 2155 __ CallRuntime(Runtime::kCreateListFromArrayLike); |
2157 __ mov(a0, v0); | 2156 __ mov(a0, v0); |
2158 __ Pop(a1, a3); | 2157 __ Pop(a1, a3); |
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2181 __ lw(a2, FieldMemOperand(at, PropertyCell::kValueOffset)); | 2180 __ lw(a2, FieldMemOperand(at, PropertyCell::kValueOffset)); |
2182 __ Branch(&create_runtime, ne, a2, | 2181 __ Branch(&create_runtime, ne, a2, |
2183 Operand(Smi::FromInt(Isolate::kProtectorValid))); | 2182 Operand(Smi::FromInt(Isolate::kProtectorValid))); |
2184 __ lw(a2, FieldMemOperand(a0, JSArray::kLengthOffset)); | 2183 __ lw(a2, FieldMemOperand(a0, JSArray::kLengthOffset)); |
2185 __ lw(a0, FieldMemOperand(a0, JSArray::kElementsOffset)); | 2184 __ lw(a0, FieldMemOperand(a0, JSArray::kElementsOffset)); |
2186 __ SmiUntag(a2); | 2185 __ SmiUntag(a2); |
2187 __ Branch(&done_create); | 2186 __ Branch(&done_create); |
2188 | 2187 |
2189 // Try to create the list from a JSArray object. | 2188 // Try to create the list from a JSArray object. |
2190 __ bind(&create_array); | 2189 __ bind(&create_array); |
2191 __ lw(a2, FieldMemOperand(a2, Map::kBitField2Offset)); | 2190 __ lbu(t1, FieldMemOperand(a2, Map::kBitField2Offset)); |
2192 __ DecodeField<Map::ElementsKindBits>(a2); | 2191 __ DecodeField<Map::ElementsKindBits>(t1); |
2193 STATIC_ASSERT(FAST_SMI_ELEMENTS == 0); | 2192 STATIC_ASSERT(FAST_SMI_ELEMENTS == 0); |
2194 STATIC_ASSERT(FAST_HOLEY_SMI_ELEMENTS == 1); | 2193 STATIC_ASSERT(FAST_HOLEY_SMI_ELEMENTS == 1); |
2195 STATIC_ASSERT(FAST_ELEMENTS == 2); | 2194 STATIC_ASSERT(FAST_ELEMENTS == 2); |
2196 STATIC_ASSERT(FAST_HOLEY_ELEMENTS == 3); | 2195 STATIC_ASSERT(FAST_HOLEY_ELEMENTS == 3); |
2197 __ Branch(&create_holey_array, eq, a2, Operand(FAST_HOLEY_SMI_ELEMENTS)); | 2196 __ Branch(&create_holey_array, eq, t1, Operand(FAST_HOLEY_SMI_ELEMENTS)); |
2198 __ Branch(&create_holey_array, eq, a2, Operand(FAST_HOLEY_ELEMENTS)); | 2197 __ Branch(&create_holey_array, eq, t1, Operand(FAST_HOLEY_ELEMENTS)); |
2199 __ Branch(&create_runtime, hi, a2, Operand(FAST_ELEMENTS)); | 2198 __ Branch(&create_runtime, hi, t1, Operand(FAST_ELEMENTS)); |
2200 __ lw(a2, FieldMemOperand(a0, JSArray::kLengthOffset)); | 2199 __ lw(a2, FieldMemOperand(a0, JSArray::kLengthOffset)); |
2201 __ lw(a0, FieldMemOperand(a0, JSArray::kElementsOffset)); | 2200 __ lw(a0, FieldMemOperand(a0, JSArray::kElementsOffset)); |
2202 __ SmiUntag(a2); | 2201 __ SmiUntag(a2); |
2203 | 2202 |
2204 __ bind(&done_create); | 2203 __ bind(&done_create); |
2205 } | 2204 } |
2206 | 2205 |
2207 // Check for stack overflow. | 2206 // Check for stack overflow. |
2208 { | 2207 { |
2209 // Check the stack for overflow. We are not trying to catch interruptions | 2208 // Check the stack for overflow. We are not trying to catch interruptions |
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2962 __ break_(0xCC); | 2961 __ break_(0xCC); |
2963 } | 2962 } |
2964 } | 2963 } |
2965 | 2964 |
2966 #undef __ | 2965 #undef __ |
2967 | 2966 |
2968 } // namespace internal | 2967 } // namespace internal |
2969 } // namespace v8 | 2968 } // namespace v8 |
2970 | 2969 |
2971 #endif // V8_TARGET_ARCH_MIPS | 2970 #endif // V8_TARGET_ARCH_MIPS |
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