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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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5573 Register result = candidate; | 5573 Register result = candidate; |
5574 __ bind(&found_in_symbol_table); | 5574 __ bind(&found_in_symbol_table); |
5575 __ mov(v0, result); | 5575 __ mov(v0, result); |
5576 } | 5576 } |
5577 | 5577 |
5578 | 5578 |
5579 void StringHelper::GenerateHashInit(MacroAssembler* masm, | 5579 void StringHelper::GenerateHashInit(MacroAssembler* masm, |
5580 Register hash, | 5580 Register hash, |
5581 Register character) { | 5581 Register character) { |
5582 // hash = seed + character + ((seed + character) << 10); | 5582 // hash = seed + character + ((seed + character) << 10); |
5583 __ LoadRoot(hash, Heap::kStringHashSeedRootIndex); | 5583 __ LoadRoot(hash, Heap::kHashSeedRootIndex); |
5584 // Untag smi seed and add the character. | 5584 // Untag smi seed and add the character. |
5585 __ SmiUntag(hash); | 5585 __ SmiUntag(hash); |
5586 __ addu(hash, hash, character); | 5586 __ addu(hash, hash, character); |
5587 __ sll(at, hash, 10); | 5587 __ sll(at, hash, 10); |
5588 __ addu(hash, hash, at); | 5588 __ addu(hash, hash, at); |
5589 // hash ^= hash >> 6; | 5589 // hash ^= hash >> 6; |
5590 __ sra(at, hash, 6); | 5590 __ sra(at, hash, 6); |
5591 __ xor_(hash, hash, at); | 5591 __ xor_(hash, hash, at); |
5592 } | 5592 } |
5593 | 5593 |
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6962 __ mov(result, zero_reg); | 6962 __ mov(result, zero_reg); |
6963 __ Ret(); | 6963 __ Ret(); |
6964 } | 6964 } |
6965 | 6965 |
6966 | 6966 |
6967 #undef __ | 6967 #undef __ |
6968 | 6968 |
6969 } } // namespace v8::internal | 6969 } } // namespace v8::internal |
6970 | 6970 |
6971 #endif // V8_TARGET_ARCH_MIPS | 6971 #endif // V8_TARGET_ARCH_MIPS |
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