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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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| 2468 Register scratch = scratch0(); | 2468 Register scratch = scratch0(); |
| 2469 __ VmovHigh(scratch, input_reg); | 2469 __ VmovHigh(scratch, input_reg); |
| 2470 __ cmp(scratch, Operand(kHoleNanUpper32)); | 2470 __ cmp(scratch, Operand(kHoleNanUpper32)); |
| 2471 EmitBranch(instr, eq); | 2471 EmitBranch(instr, eq); |
| 2472 } | 2472 } |
| 2473 | 2473 |
| 2474 | 2474 |
| 2475 void LCodeGen::DoCompareMinusZeroAndBranch(LCompareMinusZeroAndBranch* instr) { | 2475 void LCodeGen::DoCompareMinusZeroAndBranch(LCompareMinusZeroAndBranch* instr) { |
| 2476 Representation rep = instr->hydrogen()->value()->representation(); | 2476 Representation rep = instr->hydrogen()->value()->representation(); |
| 2477 ASSERT(!rep.IsInteger32()); | 2477 ASSERT(!rep.IsInteger32()); |
| 2478 Label if_false; | |
| 2479 Register scratch = ToRegister(instr->temp()); | 2478 Register scratch = ToRegister(instr->temp()); |
| 2480 | 2479 |
| 2481 if (rep.IsDouble()) { | 2480 if (rep.IsDouble()) { |
| 2482 DwVfpRegister value = ToDoubleRegister(instr->value()); | 2481 DwVfpRegister value = ToDoubleRegister(instr->value()); |
| 2483 __ VFPCompareAndSetFlags(value, 0.0); | 2482 __ VFPCompareAndSetFlags(value, 0.0); |
| 2484 __ b(ne, &if_false); | 2483 EmitFalseBranch(instr, ne); |
| 2485 __ VmovHigh(scratch, value); | 2484 __ VmovHigh(scratch, value); |
| 2486 __ cmp(scratch, Operand(0x80000000)); | 2485 __ cmp(scratch, Operand(0x80000000)); |
| 2487 } else { | 2486 } else { |
| 2488 Register value = ToRegister(instr->value()); | 2487 Register value = ToRegister(instr->value()); |
| 2489 __ CheckMap( | 2488 __ CheckMap(value, |
| 2490 value, scratch, Heap::kHeapNumberMapRootIndex, &if_false, DO_SMI_CHECK); | 2489 scratch, |
| 2490 Heap::kHeapNumberMapRootIndex, |
| 2491 instr->FalseLabel(chunk()), |
| 2492 DO_SMI_CHECK); |
| 2491 __ ldr(scratch, FieldMemOperand(value, HeapNumber::kExponentOffset)); | 2493 __ ldr(scratch, FieldMemOperand(value, HeapNumber::kExponentOffset)); |
| 2492 __ ldr(ip, FieldMemOperand(value, HeapNumber::kMantissaOffset)); | 2494 __ ldr(ip, FieldMemOperand(value, HeapNumber::kMantissaOffset)); |
| 2493 __ cmp(scratch, Operand(0x80000000)); | 2495 __ cmp(scratch, Operand(0x80000000)); |
| 2494 __ cmp(ip, Operand(0x00000000), eq); | 2496 __ cmp(ip, Operand(0x00000000), eq); |
| 2495 } | 2497 } |
| 2496 EmitBranch(instr, eq); | 2498 EmitBranch(instr, eq); |
| 2497 | |
| 2498 __ bind(&if_false); | |
| 2499 EmitFalseBranch(instr, al); | |
| 2500 } | 2499 } |
| 2501 | 2500 |
| 2502 | 2501 |
| 2503 Condition LCodeGen::EmitIsObject(Register input, | 2502 Condition LCodeGen::EmitIsObject(Register input, |
| 2504 Register temp1, | 2503 Register temp1, |
| 2505 Label* is_not_object, | 2504 Label* is_not_object, |
| 2506 Label* is_object) { | 2505 Label* is_object) { |
| 2507 Register temp2 = scratch0(); | 2506 Register temp2 = scratch0(); |
| 2508 __ JumpIfSmi(input, is_not_object); | 2507 __ JumpIfSmi(input, is_not_object); |
| 2509 | 2508 |
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| 5911 __ sub(scratch, result, Operand::PointerOffsetFromSmiKey(index)); | 5910 __ sub(scratch, result, Operand::PointerOffsetFromSmiKey(index)); |
| 5912 __ ldr(result, FieldMemOperand(scratch, | 5911 __ ldr(result, FieldMemOperand(scratch, |
| 5913 FixedArray::kHeaderSize - kPointerSize)); | 5912 FixedArray::kHeaderSize - kPointerSize)); |
| 5914 __ bind(&done); | 5913 __ bind(&done); |
| 5915 } | 5914 } |
| 5916 | 5915 |
| 5917 | 5916 |
| 5918 #undef __ | 5917 #undef __ |
| 5919 | 5918 |
| 5920 } } // namespace v8::internal | 5919 } } // namespace v8::internal |
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