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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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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5051 | 5051 |
5052 // smi | 5052 // smi |
5053 __ bind(&is_smi); | 5053 __ bind(&is_smi); |
5054 __ SmiToInteger32(input_reg, input_reg); | 5054 __ SmiToInteger32(input_reg, input_reg); |
5055 __ ClampUint8(input_reg); | 5055 __ ClampUint8(input_reg); |
5056 | 5056 |
5057 __ bind(&done); | 5057 __ bind(&done); |
5058 } | 5058 } |
5059 | 5059 |
5060 | 5060 |
5061 void LCodeGen::DoDoubleBits(LDoubleBits* instr) { | |
5062 XMMRegister value_reg = ToDoubleRegister(instr->value()); | |
5063 Register result_reg = ToRegister(instr->result()); | |
5064 if (instr->hydrogen()->bits() == HDoubleBits::HIGH) { | |
5065 __ movq(result_reg, value_reg); | |
5066 __ shr(result_reg, Immediate(32)); | |
5067 } else { | |
5068 __ movd(result_reg, value_reg); | |
5069 } | |
5070 } | |
5071 | |
5072 | |
5073 void LCodeGen::DoConstructDouble(LConstructDouble* instr) { | |
5074 Register hi_reg = ToRegister(instr->hi()); | |
5075 Register lo_reg = ToRegister(instr->lo()); | |
5076 XMMRegister result_reg = ToDoubleRegister(instr->result()); | |
5077 XMMRegister xmm_scratch = double_scratch0(); | |
5078 __ movd(result_reg, hi_reg); | |
5079 __ psllq(result_reg, 32); | |
5080 __ movd(xmm_scratch, lo_reg); | |
5081 __ orps(result_reg, xmm_scratch); | |
5082 } | |
5083 | |
5084 | |
5085 void LCodeGen::DoAllocate(LAllocate* instr) { | 5061 void LCodeGen::DoAllocate(LAllocate* instr) { |
5086 class DeferredAllocate V8_FINAL : public LDeferredCode { | 5062 class DeferredAllocate V8_FINAL : public LDeferredCode { |
5087 public: | 5063 public: |
5088 DeferredAllocate(LCodeGen* codegen, LAllocate* instr) | 5064 DeferredAllocate(LCodeGen* codegen, LAllocate* instr) |
5089 : LDeferredCode(codegen), instr_(instr) { } | 5065 : LDeferredCode(codegen), instr_(instr) { } |
5090 virtual void Generate() V8_OVERRIDE { | 5066 virtual void Generate() V8_OVERRIDE { |
5091 codegen()->DoDeferredAllocate(instr_); | 5067 codegen()->DoDeferredAllocate(instr_); |
5092 } | 5068 } |
5093 virtual LInstruction* instr() V8_OVERRIDE { return instr_; } | 5069 virtual LInstruction* instr() V8_OVERRIDE { return instr_; } |
5094 private: | 5070 private: |
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5611 FixedArray::kHeaderSize - kPointerSize)); | 5587 FixedArray::kHeaderSize - kPointerSize)); |
5612 __ bind(&done); | 5588 __ bind(&done); |
5613 } | 5589 } |
5614 | 5590 |
5615 | 5591 |
5616 #undef __ | 5592 #undef __ |
5617 | 5593 |
5618 } } // namespace v8::internal | 5594 } } // namespace v8::internal |
5619 | 5595 |
5620 #endif // V8_TARGET_ARCH_X64 | 5596 #endif // V8_TARGET_ARCH_X64 |
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