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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 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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152 __ IncrementCounter(counters->fast_new_closure_try_optimized(), 1, t2, t3); | 152 __ IncrementCounter(counters->fast_new_closure_try_optimized(), 1, t2, t3); |
153 | 153 |
154 // a2 holds global context, a1 points to fixed array of 3-element entries | 154 // a2 holds global context, a1 points to fixed array of 3-element entries |
155 // (global context, optimized code, literals). | 155 // (global context, optimized code, literals). |
156 // The optimized code map must never be empty, so check the first elements. | 156 // The optimized code map must never be empty, so check the first elements. |
157 Label install_optimized; | 157 Label install_optimized; |
158 // Speculatively move code object into t0. | 158 // Speculatively move code object into t0. |
159 __ lw(t0, FieldMemOperand(a1, FixedArray::kHeaderSize + kPointerSize)); | 159 __ lw(t0, FieldMemOperand(a1, FixedArray::kHeaderSize + kPointerSize)); |
160 __ lw(t1, FieldMemOperand(a1, FixedArray::kHeaderSize)); | 160 __ lw(t1, FieldMemOperand(a1, FixedArray::kHeaderSize)); |
161 __ Branch(&install_optimized, eq, a2, Operand(t1)); | 161 __ Branch(&install_optimized, eq, a2, Operand(t1)); |
162 __ Branch(&install_unoptimized); | |
163 | 162 |
164 // Iterate through the rest of map backwards. t0 holds an index as a Smi. | 163 // Iterate through the rest of map backwards. t0 holds an index as a Smi. |
165 Label loop; | 164 Label loop; |
166 __ lw(t0, FieldMemOperand(a1, FixedArray::kLengthOffset)); | 165 __ lw(t0, FieldMemOperand(a1, FixedArray::kLengthOffset)); |
167 __ bind(&loop); | 166 __ bind(&loop); |
168 // Do not double check first entry. | 167 // Do not double check first entry. |
169 | 168 |
170 __ Branch(&install_unoptimized, eq, t0, | 169 __ Branch(&install_unoptimized, eq, t0, |
171 Operand(Smi::FromInt(SharedFunctionInfo::kEntryLength))); | 170 Operand(Smi::FromInt(SharedFunctionInfo::kEntryLength))); |
172 __ Subu(t0, t0, Operand( | 171 __ Subu(t0, t0, Operand( |
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7765 __ Ret(USE_DELAY_SLOT); | 7764 __ Ret(USE_DELAY_SLOT); |
7766 __ mov(v0, a0); | 7765 __ mov(v0, a0); |
7767 } | 7766 } |
7768 | 7767 |
7769 | 7768 |
7770 #undef __ | 7769 #undef __ |
7771 | 7770 |
7772 } } // namespace v8::internal | 7771 } } // namespace v8::internal |
7773 | 7772 |
7774 #endif // V8_TARGET_ARCH_MIPS | 7773 #endif // V8_TARGET_ARCH_MIPS |
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