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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 #include "src/v8.h" | 5 #include "src/v8.h" |
| 6 | 6 |
| 7 #if V8_TARGET_ARCH_MIPS | 7 #if V8_TARGET_ARCH_MIPS |
| 8 | 8 |
| 9 #include "src/base/bits.h" | 9 #include "src/base/bits.h" |
| 10 #include "src/bootstrapper.h" | 10 #include "src/bootstrapper.h" |
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| 2513 // Make sure the function is the Array() function | 2513 // Make sure the function is the Array() function |
| 2514 __ LoadGlobalFunction(Context::ARRAY_FUNCTION_INDEX, t0); | 2514 __ LoadGlobalFunction(Context::ARRAY_FUNCTION_INDEX, t0); |
| 2515 __ Branch(&megamorphic, ne, a1, Operand(t0)); | 2515 __ Branch(&megamorphic, ne, a1, Operand(t0)); |
| 2516 __ jmp(&done); | 2516 __ jmp(&done); |
| 2517 } | 2517 } |
| 2518 | 2518 |
| 2519 __ bind(&miss); | 2519 __ bind(&miss); |
| 2520 | 2520 |
| 2521 // A monomorphic miss (i.e, here the cache is not uninitialized) goes | 2521 // A monomorphic miss (i.e, here the cache is not uninitialized) goes |
| 2522 // megamorphic. | 2522 // megamorphic. |
| 2523 __ LoadRoot(at, Heap::kUninitializedSymbolRootIndex); | 2523 __ LoadRoot(at, Heap::kuninitialized_symbolRootIndex); |
| 2524 __ Branch(&initialize, eq, t0, Operand(at)); | 2524 __ Branch(&initialize, eq, t0, Operand(at)); |
| 2525 // MegamorphicSentinel is an immortal immovable object (undefined) so no | 2525 // MegamorphicSentinel is an immortal immovable object (undefined) so no |
| 2526 // write-barrier is needed. | 2526 // write-barrier is needed. |
| 2527 __ bind(&megamorphic); | 2527 __ bind(&megamorphic); |
| 2528 __ sll(t0, a3, kPointerSizeLog2 - kSmiTagSize); | 2528 __ sll(t0, a3, kPointerSizeLog2 - kSmiTagSize); |
| 2529 __ Addu(t0, a2, Operand(t0)); | 2529 __ Addu(t0, a2, Operand(t0)); |
| 2530 __ LoadRoot(at, Heap::kMegamorphicSymbolRootIndex); | 2530 __ LoadRoot(at, Heap::kmegamorphic_symbolRootIndex); |
| 2531 __ sw(at, FieldMemOperand(t0, FixedArray::kHeaderSize)); | 2531 __ sw(at, FieldMemOperand(t0, FixedArray::kHeaderSize)); |
| 2532 __ jmp(&done); | 2532 __ jmp(&done); |
| 2533 | 2533 |
| 2534 // An uninitialized cache is patched with the function. | 2534 // An uninitialized cache is patched with the function. |
| 2535 __ bind(&initialize); | 2535 __ bind(&initialize); |
| 2536 if (!FLAG_pretenuring_call_new) { | 2536 if (!FLAG_pretenuring_call_new) { |
| 2537 // Make sure the function is the Array() function. | 2537 // Make sure the function is the Array() function. |
| 2538 __ LoadGlobalFunction(Context::ARRAY_FUNCTION_INDEX, t0); | 2538 __ LoadGlobalFunction(Context::ARRAY_FUNCTION_INDEX, t0); |
| 2539 __ Branch(¬_array_function, ne, a1, Operand(t0)); | 2539 __ Branch(¬_array_function, ne, a1, Operand(t0)); |
| 2540 | 2540 |
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| 2838 EmitSlowCase(masm, argc, &non_function); | 2838 EmitSlowCase(masm, argc, &non_function); |
| 2839 | 2839 |
| 2840 if (CallAsMethod()) { | 2840 if (CallAsMethod()) { |
| 2841 __ bind(&wrap); | 2841 __ bind(&wrap); |
| 2842 EmitWrapCase(masm, argc, &cont); | 2842 EmitWrapCase(masm, argc, &cont); |
| 2843 } | 2843 } |
| 2844 | 2844 |
| 2845 __ bind(&extra_checks_or_miss); | 2845 __ bind(&extra_checks_or_miss); |
| 2846 Label miss; | 2846 Label miss; |
| 2847 | 2847 |
| 2848 __ LoadRoot(at, Heap::kMegamorphicSymbolRootIndex); | 2848 __ LoadRoot(at, Heap::kmegamorphic_symbolRootIndex); |
| 2849 __ Branch(&slow_start, eq, t0, Operand(at)); | 2849 __ Branch(&slow_start, eq, t0, Operand(at)); |
| 2850 __ LoadRoot(at, Heap::kUninitializedSymbolRootIndex); | 2850 __ LoadRoot(at, Heap::kuninitialized_symbolRootIndex); |
| 2851 __ Branch(&miss, eq, t0, Operand(at)); | 2851 __ Branch(&miss, eq, t0, Operand(at)); |
| 2852 | 2852 |
| 2853 if (!FLAG_trace_ic) { | 2853 if (!FLAG_trace_ic) { |
| 2854 // We are going megamorphic. If the feedback is a JSFunction, it is fine | 2854 // We are going megamorphic. If the feedback is a JSFunction, it is fine |
| 2855 // to handle it here. More complex cases are dealt with in the runtime. | 2855 // to handle it here. More complex cases are dealt with in the runtime. |
| 2856 __ AssertNotSmi(t0); | 2856 __ AssertNotSmi(t0); |
| 2857 __ GetObjectType(t0, t1, t1); | 2857 __ GetObjectType(t0, t1, t1); |
| 2858 __ Branch(&miss, ne, t1, Operand(JS_FUNCTION_TYPE)); | 2858 __ Branch(&miss, ne, t1, Operand(JS_FUNCTION_TYPE)); |
| 2859 __ sll(t0, a3, kPointerSizeLog2 - kSmiTagSize); | 2859 __ sll(t0, a3, kPointerSizeLog2 - kSmiTagSize); |
| 2860 __ Addu(t0, a2, Operand(t0)); | 2860 __ Addu(t0, a2, Operand(t0)); |
| 2861 __ LoadRoot(at, Heap::kMegamorphicSymbolRootIndex); | 2861 __ LoadRoot(at, Heap::kmegamorphic_symbolRootIndex); |
| 2862 __ sw(at, FieldMemOperand(t0, FixedArray::kHeaderSize)); | 2862 __ sw(at, FieldMemOperand(t0, FixedArray::kHeaderSize)); |
| 2863 __ Branch(&slow_start); | 2863 __ Branch(&slow_start); |
| 2864 } | 2864 } |
| 2865 | 2865 |
| 2866 // We are here because tracing is on or we are going monomorphic. | 2866 // We are here because tracing is on or we are going monomorphic. |
| 2867 __ bind(&miss); | 2867 __ bind(&miss); |
| 2868 GenerateMiss(masm); | 2868 GenerateMiss(masm); |
| 2869 | 2869 |
| 2870 // the slow case | 2870 // the slow case |
| 2871 __ bind(&slow_start); | 2871 __ bind(&slow_start); |
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| 4898 MemOperand(fp, 6 * kPointerSize), | 4898 MemOperand(fp, 6 * kPointerSize), |
| 4899 NULL); | 4899 NULL); |
| 4900 } | 4900 } |
| 4901 | 4901 |
| 4902 | 4902 |
| 4903 #undef __ | 4903 #undef __ |
| 4904 | 4904 |
| 4905 } } // namespace v8::internal | 4905 } } // namespace v8::internal |
| 4906 | 4906 |
| 4907 #endif // V8_TARGET_ARCH_MIPS | 4907 #endif // V8_TARGET_ARCH_MIPS |
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