1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ART_COMPILER_OPTIMIZING_NODES_X86_H_ 18 #define ART_COMPILER_OPTIMIZING_NODES_X86_H_ 19 20 namespace art { 21 22 // Compute the address of the method for X86 Constant area support. 23 class HX86ComputeBaseMethodAddress : public HExpression<0> { 24 public: 25 // Treat the value as an int32_t, but it is really a 32 bit native pointer. HX86ComputeBaseMethodAddress()26 HX86ComputeBaseMethodAddress() 27 : HExpression(Primitive::kPrimInt, SideEffects::None(), kNoDexPc) {} 28 29 DECLARE_INSTRUCTION(X86ComputeBaseMethodAddress); 30 31 private: 32 DISALLOW_COPY_AND_ASSIGN(HX86ComputeBaseMethodAddress); 33 }; 34 35 // Load a constant value from the constant table. 36 class HX86LoadFromConstantTable : public HExpression<2> { 37 public: HX86LoadFromConstantTable(HX86ComputeBaseMethodAddress * method_base,HConstant * constant)38 HX86LoadFromConstantTable(HX86ComputeBaseMethodAddress* method_base, 39 HConstant* constant) 40 : HExpression(constant->GetType(), SideEffects::None(), kNoDexPc) { 41 SetRawInputAt(0, method_base); 42 SetRawInputAt(1, constant); 43 } 44 GetBaseMethodAddress()45 HX86ComputeBaseMethodAddress* GetBaseMethodAddress() const { 46 return InputAt(0)->AsX86ComputeBaseMethodAddress(); 47 } 48 GetConstant()49 HConstant* GetConstant() const { 50 return InputAt(1)->AsConstant(); 51 } 52 53 DECLARE_INSTRUCTION(X86LoadFromConstantTable); 54 55 private: 56 DISALLOW_COPY_AND_ASSIGN(HX86LoadFromConstantTable); 57 }; 58 59 // Version of HNeg with access to the constant table for FP types. 60 class HX86FPNeg : public HExpression<2> { 61 public: HX86FPNeg(Primitive::Type result_type,HInstruction * input,HX86ComputeBaseMethodAddress * method_base,uint32_t dex_pc)62 HX86FPNeg(Primitive::Type result_type, 63 HInstruction* input, 64 HX86ComputeBaseMethodAddress* method_base, 65 uint32_t dex_pc) 66 : HExpression(result_type, SideEffects::None(), dex_pc) { 67 DCHECK(Primitive::IsFloatingPointType(result_type)); 68 SetRawInputAt(0, input); 69 SetRawInputAt(1, method_base); 70 } 71 72 DECLARE_INSTRUCTION(X86FPNeg); 73 74 private: 75 DISALLOW_COPY_AND_ASSIGN(HX86FPNeg); 76 }; 77 78 // X86 version of HPackedSwitch that holds a pointer to the base method address. 79 class HX86PackedSwitch : public HTemplateInstruction<2> { 80 public: HX86PackedSwitch(int32_t start_value,int32_t num_entries,HInstruction * input,HX86ComputeBaseMethodAddress * method_base,uint32_t dex_pc)81 HX86PackedSwitch(int32_t start_value, 82 int32_t num_entries, 83 HInstruction* input, 84 HX86ComputeBaseMethodAddress* method_base, 85 uint32_t dex_pc) 86 : HTemplateInstruction(SideEffects::None(), dex_pc), 87 start_value_(start_value), 88 num_entries_(num_entries) { 89 SetRawInputAt(0, input); 90 SetRawInputAt(1, method_base); 91 } 92 IsControlFlow()93 bool IsControlFlow() const OVERRIDE { return true; } 94 GetStartValue()95 int32_t GetStartValue() const { return start_value_; } 96 GetNumEntries()97 int32_t GetNumEntries() const { return num_entries_; } 98 GetBaseMethodAddress()99 HX86ComputeBaseMethodAddress* GetBaseMethodAddress() const { 100 return InputAt(1)->AsX86ComputeBaseMethodAddress(); 101 } 102 GetDefaultBlock()103 HBasicBlock* GetDefaultBlock() const { 104 // Last entry is the default block. 105 return GetBlock()->GetSuccessors()[num_entries_]; 106 } 107 108 DECLARE_INSTRUCTION(X86PackedSwitch); 109 110 private: 111 const int32_t start_value_; 112 const int32_t num_entries_; 113 114 DISALLOW_COPY_AND_ASSIGN(HX86PackedSwitch); 115 }; 116 117 } // namespace art 118 119 #endif // ART_COMPILER_OPTIMIZING_NODES_X86_H_ 120