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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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| 1776 LTaggedToI* res = new(zone()) LTaggedToI(value, xmm_temp); | 1776 LTaggedToI* res = new(zone()) LTaggedToI(value, xmm_temp); |
| 1777 return AssignEnvironment(DefineSameAsFirst(res)); | 1777 return AssignEnvironment(DefineSameAsFirst(res)); |
| 1778 } | 1778 } |
| 1779 } | 1779 } |
| 1780 } else if (from.IsDouble()) { | 1780 } else if (from.IsDouble()) { |
| 1781 if (to.IsTagged()) { | 1781 if (to.IsTagged()) { |
| 1782 info()->MarkAsDeferredCalling(); | 1782 info()->MarkAsDeferredCalling(); |
| 1783 LOperand* value = CpuFeatures::IsSupported(SSE2) | 1783 LOperand* value = CpuFeatures::IsSupported(SSE2) |
| 1784 ? UseRegisterAtStart(instr->value()) | 1784 ? UseRegisterAtStart(instr->value()) |
| 1785 : UseAtStart(instr->value()); | 1785 : UseAtStart(instr->value()); |
| 1786 LOperand* temp = TempRegister(); | 1786 LOperand* temp = FLAG_inline_new ? TempRegister() : NULL; |
| 1787 | 1787 |
| 1788 // Make sure that temp and result_temp are different registers. | 1788 // Make sure that temp and result_temp are different registers. |
| 1789 LUnallocated* result_temp = TempRegister(); | 1789 LUnallocated* result_temp = TempRegister(); |
| 1790 LNumberTagD* result = new(zone()) LNumberTagD(value, temp); | 1790 LNumberTagD* result = new(zone()) LNumberTagD(value, temp); |
| 1791 return AssignPointerMap(Define(result, result_temp)); | 1791 return AssignPointerMap(Define(result, result_temp)); |
| 1792 } else { | 1792 } else { |
| 1793 ASSERT(to.IsInteger32()); | 1793 ASSERT(to.IsInteger32()); |
| 1794 bool truncating = instr->CanTruncateToInt32(); | 1794 bool truncating = instr->CanTruncateToInt32(); |
| 1795 bool needs_temp = truncating && !CpuFeatures::IsSupported(SSE3); | 1795 bool needs_temp = truncating && !CpuFeatures::IsSupported(SSE3); |
| 1796 LOperand* value = needs_temp ? | 1796 LOperand* value = needs_temp ? |
| 1797 UseTempRegister(instr->value()) : UseRegister(instr->value()); | 1797 UseTempRegister(instr->value()) : UseRegister(instr->value()); |
| 1798 LOperand* temp = needs_temp ? TempRegister() : NULL; | 1798 LOperand* temp = needs_temp ? TempRegister() : NULL; |
| 1799 return AssignEnvironment( | 1799 return AssignEnvironment( |
| 1800 DefineAsRegister(new(zone()) LDoubleToI(value, temp))); | 1800 DefineAsRegister(new(zone()) LDoubleToI(value, temp))); |
| 1801 } | 1801 } |
| 1802 } else if (from.IsInteger32()) { | 1802 } else if (from.IsInteger32()) { |
| 1803 info()->MarkAsDeferredCalling(); | 1803 info()->MarkAsDeferredCalling(); |
| 1804 if (to.IsTagged()) { | 1804 if (to.IsTagged()) { |
| 1805 HValue* val = instr->value(); | 1805 HValue* val = instr->value(); |
| 1806 LOperand* value = UseRegister(val); | 1806 LOperand* value = UseRegister(val); |
| 1807 if (val->HasRange() && val->range()->IsInSmiRange()) { | 1807 if (val->HasRange() && val->range()->IsInSmiRange()) { |
| 1808 return DefineSameAsFirst(new(zone()) LSmiTag(value)); | 1808 return DefineSameAsFirst(new(zone()) LSmiTag(value)); |
| 1809 } else if (val->CheckFlag(HInstruction::kUint32)) { | 1809 } else if (val->CheckFlag(HInstruction::kUint32)) { |
| 1810 LOperand* temp = FixedTemp(xmm1); | 1810 LNumberTagU* result = new(zone()) LNumberTagU(value); |
| 1811 LNumberTagU* result = new(zone()) LNumberTagU(value, temp); | |
| 1812 return AssignEnvironment(AssignPointerMap(DefineSameAsFirst(result))); | 1811 return AssignEnvironment(AssignPointerMap(DefineSameAsFirst(result))); |
| 1813 } else { | 1812 } else { |
| 1814 LNumberTagI* result = new(zone()) LNumberTagI(value); | 1813 LNumberTagI* result = new(zone()) LNumberTagI(value); |
| 1815 return AssignEnvironment(AssignPointerMap(DefineSameAsFirst(result))); | 1814 return AssignEnvironment(AssignPointerMap(DefineSameAsFirst(result))); |
| 1816 } | 1815 } |
| 1817 } else { | 1816 } else { |
| 1818 ASSERT(to.IsDouble()); | 1817 ASSERT(to.IsDouble()); |
| 1819 if (instr->value()->CheckFlag(HInstruction::kUint32)) { | 1818 if (instr->value()->CheckFlag(HInstruction::kUint32)) { |
| 1820 LOperand* temp = FixedTemp(xmm1); | 1819 LOperand* temp = FixedTemp(xmm1); |
| 1821 return DefineAsRegister( | 1820 return DefineAsRegister( |
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| 2512 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) { | 2511 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) { |
| 2513 LOperand* object = UseRegister(instr->object()); | 2512 LOperand* object = UseRegister(instr->object()); |
| 2514 LOperand* index = UseTempRegister(instr->index()); | 2513 LOperand* index = UseTempRegister(instr->index()); |
| 2515 return DefineSameAsFirst(new(zone()) LLoadFieldByIndex(object, index)); | 2514 return DefineSameAsFirst(new(zone()) LLoadFieldByIndex(object, index)); |
| 2516 } | 2515 } |
| 2517 | 2516 |
| 2518 | 2517 |
| 2519 } } // namespace v8::internal | 2518 } } // namespace v8::internal |
| 2520 | 2519 |
| 2521 #endif // V8_TARGET_ARCH_IA32 | 2520 #endif // V8_TARGET_ARCH_IA32 |
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