Nicolas Geoffray | d4dd255 | 2014-02-28 10:23:58 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 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_CODE_GENERATOR_ARM_H_ |
| 18 | #define ART_COMPILER_OPTIMIZING_CODE_GENERATOR_ARM_H_ |
| 19 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 20 | #include "base/enums.h" |
Nicolas Geoffray | d4dd255 | 2014-02-28 10:23:58 +0000 | [diff] [blame] | 21 | #include "code_generator.h" |
Calin Juravle | cd6dffe | 2015-01-08 17:35:35 +0000 | [diff] [blame] | 22 | #include "driver/compiler_options.h" |
Nicolas Geoffray | d4dd255 | 2014-02-28 10:23:58 +0000 | [diff] [blame] | 23 | #include "nodes.h" |
Mathieu Chartier | dc00f18 | 2016-07-14 10:10:44 -0700 | [diff] [blame] | 24 | #include "string_reference.h" |
Nicolas Geoffray | e27f31a | 2014-06-12 17:53:14 +0100 | [diff] [blame] | 25 | #include "parallel_move_resolver.h" |
Nicolas Geoffray | 8d48673 | 2014-07-16 16:23:40 +0100 | [diff] [blame] | 26 | #include "utils/arm/assembler_thumb2.h" |
Vladimir Marko | dbb7f5b | 2016-03-30 13:23:58 +0100 | [diff] [blame] | 27 | #include "utils/type_reference.h" |
Nicolas Geoffray | d4dd255 | 2014-02-28 10:23:58 +0000 | [diff] [blame] | 28 | |
| 29 | namespace art { |
Nicolas Geoffray | d4dd255 | 2014-02-28 10:23:58 +0000 | [diff] [blame] | 30 | namespace arm { |
| 31 | |
Nicolas Geoffray | 01bc96d | 2014-04-11 17:43:50 +0100 | [diff] [blame] | 32 | class CodeGeneratorARM; |
| 33 | |
Nicolas Geoffray | 86a8d7a | 2014-11-19 08:47:18 +0000 | [diff] [blame] | 34 | // Use a local definition to prevent copying mistakes. |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 35 | static constexpr size_t kArmWordSize = static_cast<size_t>(kArmPointerSize); |
Nicolas Geoffray | a4f3581 | 2015-06-22 23:12:45 +0100 | [diff] [blame] | 36 | static constexpr size_t kArmBitsPerWord = kArmWordSize * kBitsPerByte; |
Nicolas Geoffray | 707c809 | 2014-04-04 10:50:14 +0100 | [diff] [blame] | 37 | |
Nicolas Geoffray | a747a39 | 2014-04-17 14:56:23 +0100 | [diff] [blame] | 38 | static constexpr Register kParameterCoreRegisters[] = { R1, R2, R3 }; |
Nicolas Geoffray | a747a39 | 2014-04-17 14:56:23 +0100 | [diff] [blame] | 39 | static constexpr size_t kParameterCoreRegistersLength = arraysize(kParameterCoreRegisters); |
Nicolas Geoffray | 1ba0f59 | 2014-10-27 15:14:55 +0000 | [diff] [blame] | 40 | static constexpr SRegister kParameterFpuRegisters[] = |
| 41 | { S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S13, S14, S15 }; |
| 42 | static constexpr size_t kParameterFpuRegistersLength = arraysize(kParameterFpuRegisters); |
Nicolas Geoffray | a747a39 | 2014-04-17 14:56:23 +0100 | [diff] [blame] | 43 | |
Andreas Gampe | 2bcf9bf | 2015-01-29 09:56:07 -0800 | [diff] [blame] | 44 | static constexpr Register kArtMethodRegister = R0; |
| 45 | |
Nicolas Geoffray | d75948a | 2015-03-27 09:53:16 +0000 | [diff] [blame] | 46 | static constexpr Register kRuntimeParameterCoreRegisters[] = { R0, R1, R2, R3 }; |
| 47 | static constexpr size_t kRuntimeParameterCoreRegistersLength = |
| 48 | arraysize(kRuntimeParameterCoreRegisters); |
| 49 | static constexpr SRegister kRuntimeParameterFpuRegisters[] = { S0, S1, S2, S3 }; |
| 50 | static constexpr size_t kRuntimeParameterFpuRegistersLength = |
| 51 | arraysize(kRuntimeParameterFpuRegisters); |
| 52 | |
| 53 | class InvokeRuntimeCallingConvention : public CallingConvention<Register, SRegister> { |
| 54 | public: |
| 55 | InvokeRuntimeCallingConvention() |
| 56 | : CallingConvention(kRuntimeParameterCoreRegisters, |
| 57 | kRuntimeParameterCoreRegistersLength, |
| 58 | kRuntimeParameterFpuRegisters, |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 59 | kRuntimeParameterFpuRegistersLength, |
| 60 | kArmPointerSize) {} |
Nicolas Geoffray | d75948a | 2015-03-27 09:53:16 +0000 | [diff] [blame] | 61 | |
| 62 | private: |
| 63 | DISALLOW_COPY_AND_ASSIGN(InvokeRuntimeCallingConvention); |
| 64 | }; |
| 65 | |
Andreas Gampe | 2bcf9bf | 2015-01-29 09:56:07 -0800 | [diff] [blame] | 66 | static constexpr DRegister FromLowSToD(SRegister reg) { |
| 67 | return DCHECK_CONSTEXPR(reg % 2 == 0, , D0) |
| 68 | static_cast<DRegister>(reg / 2); |
| 69 | } |
| 70 | |
| 71 | |
Nicolas Geoffray | 1ba0f59 | 2014-10-27 15:14:55 +0000 | [diff] [blame] | 72 | class InvokeDexCallingConvention : public CallingConvention<Register, SRegister> { |
Nicolas Geoffray | a747a39 | 2014-04-17 14:56:23 +0100 | [diff] [blame] | 73 | public: |
| 74 | InvokeDexCallingConvention() |
Nicolas Geoffray | 7fb49da | 2014-10-06 09:12:41 +0100 | [diff] [blame] | 75 | : CallingConvention(kParameterCoreRegisters, |
| 76 | kParameterCoreRegistersLength, |
| 77 | kParameterFpuRegisters, |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 78 | kParameterFpuRegistersLength, |
| 79 | kArmPointerSize) {} |
Nicolas Geoffray | a747a39 | 2014-04-17 14:56:23 +0100 | [diff] [blame] | 80 | |
Nicolas Geoffray | a747a39 | 2014-04-17 14:56:23 +0100 | [diff] [blame] | 81 | private: |
| 82 | DISALLOW_COPY_AND_ASSIGN(InvokeDexCallingConvention); |
| 83 | }; |
| 84 | |
Roland Levillain | 2d27c8e | 2015-04-28 15:48:45 +0100 | [diff] [blame] | 85 | class InvokeDexCallingConventionVisitorARM : public InvokeDexCallingConventionVisitor { |
Nicolas Geoffray | a747a39 | 2014-04-17 14:56:23 +0100 | [diff] [blame] | 86 | public: |
Roland Levillain | 2d27c8e | 2015-04-28 15:48:45 +0100 | [diff] [blame] | 87 | InvokeDexCallingConventionVisitorARM() {} |
| 88 | virtual ~InvokeDexCallingConventionVisitorARM() {} |
Nicolas Geoffray | a747a39 | 2014-04-17 14:56:23 +0100 | [diff] [blame] | 89 | |
Roland Levillain | 2d27c8e | 2015-04-28 15:48:45 +0100 | [diff] [blame] | 90 | Location GetNextLocation(Primitive::Type type) OVERRIDE; |
Nicolas Geoffray | fd88f16 | 2015-06-03 11:23:52 +0100 | [diff] [blame] | 91 | Location GetReturnLocation(Primitive::Type type) const OVERRIDE; |
| 92 | Location GetMethodLocation() const OVERRIDE; |
Nicolas Geoffray | a747a39 | 2014-04-17 14:56:23 +0100 | [diff] [blame] | 93 | |
| 94 | private: |
| 95 | InvokeDexCallingConvention calling_convention; |
Roland Levillain | 2d27c8e | 2015-04-28 15:48:45 +0100 | [diff] [blame] | 96 | uint32_t double_index_ = 0; |
Nicolas Geoffray | a747a39 | 2014-04-17 14:56:23 +0100 | [diff] [blame] | 97 | |
Roland Levillain | 2d27c8e | 2015-04-28 15:48:45 +0100 | [diff] [blame] | 98 | DISALLOW_COPY_AND_ASSIGN(InvokeDexCallingConventionVisitorARM); |
Nicolas Geoffray | a747a39 | 2014-04-17 14:56:23 +0100 | [diff] [blame] | 99 | }; |
| 100 | |
Calin Juravle | e460d1d | 2015-09-29 04:52:17 +0100 | [diff] [blame] | 101 | class FieldAccessCallingConventionARM : public FieldAccessCallingConvention { |
| 102 | public: |
| 103 | FieldAccessCallingConventionARM() {} |
| 104 | |
| 105 | Location GetObjectLocation() const OVERRIDE { |
| 106 | return Location::RegisterLocation(R1); |
| 107 | } |
| 108 | Location GetFieldIndexLocation() const OVERRIDE { |
| 109 | return Location::RegisterLocation(R0); |
| 110 | } |
| 111 | Location GetReturnLocation(Primitive::Type type) const OVERRIDE { |
| 112 | return Primitive::Is64BitType(type) |
| 113 | ? Location::RegisterPairLocation(R0, R1) |
| 114 | : Location::RegisterLocation(R0); |
| 115 | } |
| 116 | Location GetSetValueLocation(Primitive::Type type, bool is_instance) const OVERRIDE { |
| 117 | return Primitive::Is64BitType(type) |
| 118 | ? Location::RegisterPairLocation(R2, R3) |
| 119 | : (is_instance |
| 120 | ? Location::RegisterLocation(R2) |
| 121 | : Location::RegisterLocation(R1)); |
| 122 | } |
| 123 | Location GetFpuLocation(Primitive::Type type) const OVERRIDE { |
| 124 | return Primitive::Is64BitType(type) |
| 125 | ? Location::FpuRegisterPairLocation(S0, S1) |
| 126 | : Location::FpuRegisterLocation(S0); |
| 127 | } |
| 128 | |
| 129 | private: |
| 130 | DISALLOW_COPY_AND_ASSIGN(FieldAccessCallingConventionARM); |
| 131 | }; |
| 132 | |
Zheng Xu | ad4450e | 2015-04-17 18:48:56 +0800 | [diff] [blame] | 133 | class ParallelMoveResolverARM : public ParallelMoveResolverWithSwap { |
Nicolas Geoffray | e27f31a | 2014-06-12 17:53:14 +0100 | [diff] [blame] | 134 | public: |
| 135 | ParallelMoveResolverARM(ArenaAllocator* allocator, CodeGeneratorARM* codegen) |
Zheng Xu | ad4450e | 2015-04-17 18:48:56 +0800 | [diff] [blame] | 136 | : ParallelMoveResolverWithSwap(allocator), codegen_(codegen) {} |
Nicolas Geoffray | e27f31a | 2014-06-12 17:53:14 +0100 | [diff] [blame] | 137 | |
Nicolas Geoffray | de58ab2 | 2014-11-05 12:46:03 +0000 | [diff] [blame] | 138 | void EmitMove(size_t index) OVERRIDE; |
| 139 | void EmitSwap(size_t index) OVERRIDE; |
| 140 | void SpillScratch(int reg) OVERRIDE; |
| 141 | void RestoreScratch(int reg) OVERRIDE; |
Nicolas Geoffray | e27f31a | 2014-06-12 17:53:14 +0100 | [diff] [blame] | 142 | |
| 143 | ArmAssembler* GetAssembler() const; |
| 144 | |
| 145 | private: |
| 146 | void Exchange(Register reg, int mem); |
| 147 | void Exchange(int mem1, int mem2); |
| 148 | |
| 149 | CodeGeneratorARM* const codegen_; |
| 150 | |
| 151 | DISALLOW_COPY_AND_ASSIGN(ParallelMoveResolverARM); |
| 152 | }; |
| 153 | |
Nicolas Geoffray | bab4ed7 | 2014-03-11 17:53:17 +0000 | [diff] [blame] | 154 | class LocationsBuilderARM : public HGraphVisitor { |
| 155 | public: |
Roland Levillain | 5799fc0 | 2014-09-25 12:15:20 +0100 | [diff] [blame] | 156 | LocationsBuilderARM(HGraph* graph, CodeGeneratorARM* codegen) |
Nicolas Geoffray | 01bc96d | 2014-04-11 17:43:50 +0100 | [diff] [blame] | 157 | : HGraphVisitor(graph), codegen_(codegen) {} |
Nicolas Geoffray | bab4ed7 | 2014-03-11 17:53:17 +0000 | [diff] [blame] | 158 | |
Nicolas Geoffray | 360231a | 2014-10-08 21:07:48 +0100 | [diff] [blame] | 159 | #define DECLARE_VISIT_INSTRUCTION(name, super) \ |
Alexandre Rames | f39e064 | 2015-06-23 11:33:45 +0100 | [diff] [blame] | 160 | void Visit##name(H##name* instr) OVERRIDE; |
Nicolas Geoffray | bab4ed7 | 2014-03-11 17:53:17 +0000 | [diff] [blame] | 161 | |
Alexandre Rames | ef20f71 | 2015-06-09 10:29:30 +0100 | [diff] [blame] | 162 | FOR_EACH_CONCRETE_INSTRUCTION_COMMON(DECLARE_VISIT_INSTRUCTION) |
| 163 | FOR_EACH_CONCRETE_INSTRUCTION_ARM(DECLARE_VISIT_INSTRUCTION) |
Artem Udovichenko | 4a0dad6 | 2016-01-26 12:28:31 +0300 | [diff] [blame] | 164 | FOR_EACH_CONCRETE_INSTRUCTION_SHARED(DECLARE_VISIT_INSTRUCTION) |
Nicolas Geoffray | bab4ed7 | 2014-03-11 17:53:17 +0000 | [diff] [blame] | 165 | |
| 166 | #undef DECLARE_VISIT_INSTRUCTION |
| 167 | |
Alexandre Rames | ef20f71 | 2015-06-09 10:29:30 +0100 | [diff] [blame] | 168 | void VisitInstruction(HInstruction* instruction) OVERRIDE { |
| 169 | LOG(FATAL) << "Unreachable instruction " << instruction->DebugName() |
| 170 | << " (id " << instruction->GetId() << ")"; |
| 171 | } |
| 172 | |
Nicolas Geoffray | bab4ed7 | 2014-03-11 17:53:17 +0000 | [diff] [blame] | 173 | private: |
Nicolas Geoffray | 9574c4b | 2014-11-12 13:19:37 +0000 | [diff] [blame] | 174 | void HandleInvoke(HInvoke* invoke); |
Vladimir Marko | d2b4ca2 | 2015-09-14 15:13:26 +0100 | [diff] [blame] | 175 | void HandleBitwiseOperation(HBinaryOperation* operation, Opcode opcode); |
Vladimir Marko | 5f7b58e | 2015-11-23 19:49:34 +0000 | [diff] [blame] | 176 | void HandleCondition(HCondition* condition); |
Scott Wakeling | 40a04bf | 2015-12-11 09:50:36 +0000 | [diff] [blame] | 177 | void HandleIntegerRotate(LocationSummary* locations); |
| 178 | void HandleLongRotate(LocationSummary* locations); |
Calin Juravle | 9aec02f | 2014-11-18 23:06:35 +0000 | [diff] [blame] | 179 | void HandleShift(HBinaryOperation* operation); |
Calin Juravle | 52c4896 | 2014-12-16 17:02:57 +0000 | [diff] [blame] | 180 | void HandleFieldSet(HInstruction* instruction, const FieldInfo& field_info); |
| 181 | void HandleFieldGet(HInstruction* instruction, const FieldInfo& field_info); |
Nicolas Geoffray | 9574c4b | 2014-11-12 13:19:37 +0000 | [diff] [blame] | 182 | |
Vladimir Marko | 37dd80d | 2016-08-01 17:41:45 +0100 | [diff] [blame] | 183 | Location ArithmeticZeroOrFpuRegister(HInstruction* input); |
Vladimir Marko | d2b4ca2 | 2015-09-14 15:13:26 +0100 | [diff] [blame] | 184 | Location ArmEncodableConstantOrRegister(HInstruction* constant, Opcode opcode); |
| 185 | bool CanEncodeConstantAsImmediate(HConstant* input_cst, Opcode opcode); |
Vladimir Marko | 59751a7 | 2016-08-05 14:37:27 +0100 | [diff] [blame^] | 186 | bool CanEncodeConstantAsImmediate(uint32_t value, Opcode opcode, SetCc set_cc = kCcDontCare); |
Vladimir Marko | d2b4ca2 | 2015-09-14 15:13:26 +0100 | [diff] [blame] | 187 | |
Nicolas Geoffray | 01bc96d | 2014-04-11 17:43:50 +0100 | [diff] [blame] | 188 | CodeGeneratorARM* const codegen_; |
Roland Levillain | 2d27c8e | 2015-04-28 15:48:45 +0100 | [diff] [blame] | 189 | InvokeDexCallingConventionVisitorARM parameter_visitor_; |
Nicolas Geoffray | 01bc96d | 2014-04-11 17:43:50 +0100 | [diff] [blame] | 190 | |
Nicolas Geoffray | bab4ed7 | 2014-03-11 17:53:17 +0000 | [diff] [blame] | 191 | DISALLOW_COPY_AND_ASSIGN(LocationsBuilderARM); |
| 192 | }; |
| 193 | |
Aart Bik | 42249c3 | 2016-01-07 15:33:50 -0800 | [diff] [blame] | 194 | class InstructionCodeGeneratorARM : public InstructionCodeGenerator { |
Nicolas Geoffray | d4dd255 | 2014-02-28 10:23:58 +0000 | [diff] [blame] | 195 | public: |
Nicolas Geoffray | 4a34a42 | 2014-04-03 10:38:37 +0100 | [diff] [blame] | 196 | InstructionCodeGeneratorARM(HGraph* graph, CodeGeneratorARM* codegen); |
Nicolas Geoffray | d4dd255 | 2014-02-28 10:23:58 +0000 | [diff] [blame] | 197 | |
Nicolas Geoffray | 360231a | 2014-10-08 21:07:48 +0100 | [diff] [blame] | 198 | #define DECLARE_VISIT_INSTRUCTION(name, super) \ |
Alexandre Rames | f39e064 | 2015-06-23 11:33:45 +0100 | [diff] [blame] | 199 | void Visit##name(H##name* instr) OVERRIDE; |
Nicolas Geoffray | d4dd255 | 2014-02-28 10:23:58 +0000 | [diff] [blame] | 200 | |
Alexandre Rames | ef20f71 | 2015-06-09 10:29:30 +0100 | [diff] [blame] | 201 | FOR_EACH_CONCRETE_INSTRUCTION_COMMON(DECLARE_VISIT_INSTRUCTION) |
| 202 | FOR_EACH_CONCRETE_INSTRUCTION_ARM(DECLARE_VISIT_INSTRUCTION) |
Artem Udovichenko | 4a0dad6 | 2016-01-26 12:28:31 +0300 | [diff] [blame] | 203 | FOR_EACH_CONCRETE_INSTRUCTION_SHARED(DECLARE_VISIT_INSTRUCTION) |
Nicolas Geoffray | d4dd255 | 2014-02-28 10:23:58 +0000 | [diff] [blame] | 204 | |
| 205 | #undef DECLARE_VISIT_INSTRUCTION |
| 206 | |
Alexandre Rames | ef20f71 | 2015-06-09 10:29:30 +0100 | [diff] [blame] | 207 | void VisitInstruction(HInstruction* instruction) OVERRIDE { |
| 208 | LOG(FATAL) << "Unreachable instruction " << instruction->DebugName() |
| 209 | << " (id " << instruction->GetId() << ")"; |
| 210 | } |
| 211 | |
Nicolas Geoffray | 4a34a42 | 2014-04-03 10:38:37 +0100 | [diff] [blame] | 212 | ArmAssembler* GetAssembler() const { return assembler_; } |
Nicolas Geoffray | 787c307 | 2014-03-17 10:20:19 +0000 | [diff] [blame] | 213 | |
| 214 | private: |
Nicolas Geoffray | 3c04974 | 2014-09-24 18:10:46 +0100 | [diff] [blame] | 215 | // Generate code for the given suspend check. If not null, `successor` |
| 216 | // is the block to branch to if the suspend check is not needed, and after |
| 217 | // the suspend call. |
| 218 | void GenerateSuspendCheck(HSuspendCheck* check, HBasicBlock* successor); |
Andreas Gampe | 85b62f2 | 2015-09-09 13:15:38 -0700 | [diff] [blame] | 219 | void GenerateClassInitializationCheck(SlowPathCode* slow_path, Register class_reg); |
Vladimir Marko | d2b4ca2 | 2015-09-14 15:13:26 +0100 | [diff] [blame] | 220 | void GenerateAndConst(Register out, Register first, uint32_t value); |
| 221 | void GenerateOrrConst(Register out, Register first, uint32_t value); |
| 222 | void GenerateEorConst(Register out, Register first, uint32_t value); |
Vladimir Marko | 59751a7 | 2016-08-05 14:37:27 +0100 | [diff] [blame^] | 223 | void GenerateAddLongConst(Location out, Location first, uint64_t value); |
Nicolas Geoffray | 9574c4b | 2014-11-12 13:19:37 +0000 | [diff] [blame] | 224 | void HandleBitwiseOperation(HBinaryOperation* operation); |
Vladimir Marko | 5f7b58e | 2015-11-23 19:49:34 +0000 | [diff] [blame] | 225 | void HandleCondition(HCondition* condition); |
Scott Wakeling | 40a04bf | 2015-12-11 09:50:36 +0000 | [diff] [blame] | 226 | void HandleIntegerRotate(LocationSummary* locations); |
| 227 | void HandleLongRotate(LocationSummary* locations); |
Calin Juravle | 9aec02f | 2014-11-18 23:06:35 +0000 | [diff] [blame] | 228 | void HandleShift(HBinaryOperation* operation); |
Roland Levillain | c928591 | 2015-12-18 10:38:42 +0000 | [diff] [blame] | 229 | |
Calin Juravle | 52c4896 | 2014-12-16 17:02:57 +0000 | [diff] [blame] | 230 | void GenerateWideAtomicStore(Register addr, uint32_t offset, |
| 231 | Register value_lo, Register value_hi, |
Calin Juravle | 77520bc | 2015-01-12 18:45:46 +0000 | [diff] [blame] | 232 | Register temp1, Register temp2, |
| 233 | HInstruction* instruction); |
Calin Juravle | 52c4896 | 2014-12-16 17:02:57 +0000 | [diff] [blame] | 234 | void GenerateWideAtomicLoad(Register addr, uint32_t offset, |
| 235 | Register out_lo, Register out_hi); |
Roland Levillain | c928591 | 2015-12-18 10:38:42 +0000 | [diff] [blame] | 236 | |
Nicolas Geoffray | 07276db | 2015-05-18 14:22:09 +0100 | [diff] [blame] | 237 | void HandleFieldSet(HInstruction* instruction, |
| 238 | const FieldInfo& field_info, |
| 239 | bool value_can_be_null); |
Calin Juravle | 52c4896 | 2014-12-16 17:02:57 +0000 | [diff] [blame] | 240 | void HandleFieldGet(HInstruction* instruction, const FieldInfo& field_info); |
Roland Levillain | c928591 | 2015-12-18 10:38:42 +0000 | [diff] [blame] | 241 | |
| 242 | // Generate a heap reference load using one register `out`: |
| 243 | // |
| 244 | // out <- *(out + offset) |
| 245 | // |
| 246 | // while honoring heap poisoning and/or read barriers (if any). |
Roland Levillain | 95e7ffc | 2016-01-22 11:57:25 +0000 | [diff] [blame] | 247 | // |
| 248 | // Location `maybe_temp` is used when generating a read barrier and |
| 249 | // shall be a register in that case; it may be an invalid location |
| 250 | // otherwise. |
Roland Levillain | c928591 | 2015-12-18 10:38:42 +0000 | [diff] [blame] | 251 | void GenerateReferenceLoadOneRegister(HInstruction* instruction, |
| 252 | Location out, |
| 253 | uint32_t offset, |
Roland Levillain | 95e7ffc | 2016-01-22 11:57:25 +0000 | [diff] [blame] | 254 | Location maybe_temp); |
Roland Levillain | c928591 | 2015-12-18 10:38:42 +0000 | [diff] [blame] | 255 | // Generate a heap reference load using two different registers |
| 256 | // `out` and `obj`: |
| 257 | // |
| 258 | // out <- *(obj + offset) |
| 259 | // |
| 260 | // while honoring heap poisoning and/or read barriers (if any). |
Roland Levillain | 95e7ffc | 2016-01-22 11:57:25 +0000 | [diff] [blame] | 261 | // |
| 262 | // Location `maybe_temp` is used when generating a Baker's (fast |
| 263 | // path) read barrier and shall be a register in that case; it may |
| 264 | // be an invalid location otherwise. |
Roland Levillain | c928591 | 2015-12-18 10:38:42 +0000 | [diff] [blame] | 265 | void GenerateReferenceLoadTwoRegisters(HInstruction* instruction, |
| 266 | Location out, |
| 267 | Location obj, |
| 268 | uint32_t offset, |
Roland Levillain | 95e7ffc | 2016-01-22 11:57:25 +0000 | [diff] [blame] | 269 | Location maybe_temp); |
Roland Levillain | c928591 | 2015-12-18 10:38:42 +0000 | [diff] [blame] | 270 | // Generate a GC root reference load: |
| 271 | // |
| 272 | // root <- *(obj + offset) |
| 273 | // |
| 274 | // while honoring read barriers (if any). |
| 275 | void GenerateGcRootFieldLoad(HInstruction* instruction, |
| 276 | Location root, |
| 277 | Register obj, |
| 278 | uint32_t offset); |
Mingyao Yang | d43b3ac | 2015-04-01 14:03:04 -0700 | [diff] [blame] | 279 | void GenerateTestAndBranch(HInstruction* instruction, |
David Brazdil | 0debae7 | 2015-11-12 18:37:00 +0000 | [diff] [blame] | 280 | size_t condition_input_index, |
Mingyao Yang | d43b3ac | 2015-04-01 14:03:04 -0700 | [diff] [blame] | 281 | Label* true_target, |
David Brazdil | 0debae7 | 2015-11-12 18:37:00 +0000 | [diff] [blame] | 282 | Label* false_target); |
David Brazdil | 0debae7 | 2015-11-12 18:37:00 +0000 | [diff] [blame] | 283 | void GenerateCompareTestAndBranch(HCondition* condition, |
Roland Levillain | 4fa13f6 | 2015-07-06 18:11:54 +0100 | [diff] [blame] | 284 | Label* true_target, |
David Brazdil | 0debae7 | 2015-11-12 18:37:00 +0000 | [diff] [blame] | 285 | Label* false_target); |
Vladimir Marko | 37dd80d | 2016-08-01 17:41:45 +0100 | [diff] [blame] | 286 | void GenerateVcmp(HInstruction* instruction); |
Roland Levillain | 4fa13f6 | 2015-07-06 18:11:54 +0100 | [diff] [blame] | 287 | void GenerateFPJumps(HCondition* cond, Label* true_label, Label* false_label); |
| 288 | void GenerateLongComparesAndJumps(HCondition* cond, Label* true_label, Label* false_label); |
Zheng Xu | c666710 | 2015-05-15 16:08:45 +0800 | [diff] [blame] | 289 | void DivRemOneOrMinusOne(HBinaryOperation* instruction); |
| 290 | void DivRemByPowerOfTwo(HBinaryOperation* instruction); |
| 291 | void GenerateDivRemWithAnyConstant(HBinaryOperation* instruction); |
| 292 | void GenerateDivRemConstantIntegral(HBinaryOperation* instruction); |
David Brazdil | fc6a86a | 2015-06-26 10:33:45 +0000 | [diff] [blame] | 293 | void HandleGoto(HInstruction* got, HBasicBlock* successor); |
Nicolas Geoffray | 3c04974 | 2014-09-24 18:10:46 +0100 | [diff] [blame] | 294 | |
Nicolas Geoffray | 4a34a42 | 2014-04-03 10:38:37 +0100 | [diff] [blame] | 295 | ArmAssembler* const assembler_; |
| 296 | CodeGeneratorARM* const codegen_; |
Nicolas Geoffray | 787c307 | 2014-03-17 10:20:19 +0000 | [diff] [blame] | 297 | |
| 298 | DISALLOW_COPY_AND_ASSIGN(InstructionCodeGeneratorARM); |
| 299 | }; |
| 300 | |
| 301 | class CodeGeneratorARM : public CodeGenerator { |
| 302 | public: |
Calin Juravle | cd6dffe | 2015-01-08 17:35:35 +0000 | [diff] [blame] | 303 | CodeGeneratorARM(HGraph* graph, |
| 304 | const ArmInstructionSetFeatures& isa_features, |
Serban Constantinescu | ecc4366 | 2015-08-13 13:33:12 +0100 | [diff] [blame] | 305 | const CompilerOptions& compiler_options, |
| 306 | OptimizingCompilerStats* stats = nullptr); |
Nicolas Geoffray | 8a16d97 | 2014-09-11 10:30:02 +0100 | [diff] [blame] | 307 | virtual ~CodeGeneratorARM() {} |
Nicolas Geoffray | 787c307 | 2014-03-17 10:20:19 +0000 | [diff] [blame] | 308 | |
Nicolas Geoffray | de58ab2 | 2014-11-05 12:46:03 +0000 | [diff] [blame] | 309 | void GenerateFrameEntry() OVERRIDE; |
| 310 | void GenerateFrameExit() OVERRIDE; |
| 311 | void Bind(HBasicBlock* block) OVERRIDE; |
Calin Juravle | 175dc73 | 2015-08-25 15:42:32 +0100 | [diff] [blame] | 312 | void MoveConstant(Location destination, int32_t value) OVERRIDE; |
Calin Juravle | e460d1d | 2015-09-29 04:52:17 +0100 | [diff] [blame] | 313 | void MoveLocation(Location dst, Location src, Primitive::Type dst_type) OVERRIDE; |
| 314 | void AddLocationAsTemp(Location location, LocationSummary* locations) OVERRIDE; |
| 315 | |
Nicolas Geoffray | de58ab2 | 2014-11-05 12:46:03 +0000 | [diff] [blame] | 316 | size_t SaveCoreRegister(size_t stack_index, uint32_t reg_id) OVERRIDE; |
| 317 | size_t RestoreCoreRegister(size_t stack_index, uint32_t reg_id) OVERRIDE; |
Nicolas Geoffray | 840e546 | 2015-01-07 16:01:24 +0000 | [diff] [blame] | 318 | size_t SaveFloatingPointRegister(size_t stack_index, uint32_t reg_id) OVERRIDE; |
| 319 | size_t RestoreFloatingPointRegister(size_t stack_index, uint32_t reg_id) OVERRIDE; |
Nicolas Geoffray | bab4ed7 | 2014-03-11 17:53:17 +0000 | [diff] [blame] | 320 | |
Nicolas Geoffray | de58ab2 | 2014-11-05 12:46:03 +0000 | [diff] [blame] | 321 | size_t GetWordSize() const OVERRIDE { |
Nicolas Geoffray | 707c809 | 2014-04-04 10:50:14 +0100 | [diff] [blame] | 322 | return kArmWordSize; |
| 323 | } |
| 324 | |
Mark Mendell | f85a9ca | 2015-01-13 09:20:58 -0500 | [diff] [blame] | 325 | size_t GetFloatingPointSpillSlotSize() const OVERRIDE { |
| 326 | // Allocated in S registers, which are word sized. |
| 327 | return kArmWordSize; |
| 328 | } |
| 329 | |
Nicolas Geoffray | de58ab2 | 2014-11-05 12:46:03 +0000 | [diff] [blame] | 330 | HGraphVisitor* GetLocationBuilder() OVERRIDE { |
Nicolas Geoffray | bab4ed7 | 2014-03-11 17:53:17 +0000 | [diff] [blame] | 331 | return &location_builder_; |
| 332 | } |
| 333 | |
Nicolas Geoffray | de58ab2 | 2014-11-05 12:46:03 +0000 | [diff] [blame] | 334 | HGraphVisitor* GetInstructionVisitor() OVERRIDE { |
Nicolas Geoffray | 787c307 | 2014-03-17 10:20:19 +0000 | [diff] [blame] | 335 | return &instruction_visitor_; |
| 336 | } |
| 337 | |
Nicolas Geoffray | de58ab2 | 2014-11-05 12:46:03 +0000 | [diff] [blame] | 338 | ArmAssembler* GetAssembler() OVERRIDE { |
Nicolas Geoffray | 787c307 | 2014-03-17 10:20:19 +0000 | [diff] [blame] | 339 | return &assembler_; |
| 340 | } |
| 341 | |
Alexandre Rames | eb7b739 | 2015-06-19 14:47:01 +0100 | [diff] [blame] | 342 | const ArmAssembler& GetAssembler() const OVERRIDE { |
| 343 | return assembler_; |
| 344 | } |
| 345 | |
Alexandre Rames | c01a664 | 2016-04-15 11:54:06 +0100 | [diff] [blame] | 346 | uintptr_t GetAddressOf(HBasicBlock* block) OVERRIDE { |
Nicolas Geoffray | de58ab2 | 2014-11-05 12:46:03 +0000 | [diff] [blame] | 347 | return GetLabelOf(block)->Position(); |
| 348 | } |
Calin Juravle | 34bacdf | 2014-10-07 20:23:36 +0100 | [diff] [blame] | 349 | |
David Brazdil | 58282f4 | 2016-01-14 12:45:10 +0000 | [diff] [blame] | 350 | void SetupBlockedRegisters() const OVERRIDE; |
Nicolas Geoffray | 4a34a42 | 2014-04-03 10:38:37 +0100 | [diff] [blame] | 351 | |
Nicolas Geoffray | de58ab2 | 2014-11-05 12:46:03 +0000 | [diff] [blame] | 352 | void DumpCoreRegister(std::ostream& stream, int reg) const OVERRIDE; |
| 353 | void DumpFloatingPointRegister(std::ostream& stream, int reg) const OVERRIDE; |
Nicolas Geoffray | a7062e0 | 2014-05-22 12:50:17 +0100 | [diff] [blame] | 354 | |
Calin Juravle | 34bacdf | 2014-10-07 20:23:36 +0100 | [diff] [blame] | 355 | // Blocks all register pairs made out of blocked core registers. |
| 356 | void UpdateBlockedPairRegisters() const; |
| 357 | |
Nicolas Geoffray | f0e3937 | 2014-11-12 17:50:07 +0000 | [diff] [blame] | 358 | ParallelMoveResolverARM* GetMoveResolver() OVERRIDE { |
Nicolas Geoffray | e27f31a | 2014-06-12 17:53:14 +0100 | [diff] [blame] | 359 | return &move_resolver_; |
| 360 | } |
| 361 | |
Nicolas Geoffray | de58ab2 | 2014-11-05 12:46:03 +0000 | [diff] [blame] | 362 | InstructionSet GetInstructionSet() const OVERRIDE { |
Nicolas Geoffray | 8d48673 | 2014-07-16 16:23:40 +0100 | [diff] [blame] | 363 | return InstructionSet::kThumb2; |
Nicolas Geoffray | 412f10c | 2014-06-19 10:00:34 +0100 | [diff] [blame] | 364 | } |
| 365 | |
Nicolas Geoffray | 01bc96d | 2014-04-11 17:43:50 +0100 | [diff] [blame] | 366 | // Helper method to move a 32bits value between two locations. |
| 367 | void Move32(Location destination, Location source); |
| 368 | // Helper method to move a 64bits value between two locations. |
| 369 | void Move64(Location destination, Location source); |
| 370 | |
Artem Serov | 6c91679 | 2016-07-11 14:02:34 +0100 | [diff] [blame] | 371 | void LoadOrStoreToOffset(Primitive::Type type, |
| 372 | Location loc, |
| 373 | Register base, |
| 374 | int32_t offset, |
| 375 | bool is_load, |
| 376 | Condition cond = AL); |
| 377 | |
| 378 | void LoadFromShiftedRegOffset(Primitive::Type type, |
| 379 | Location out_loc, |
| 380 | Register base, |
| 381 | Register reg_offset, |
| 382 | Condition cond = AL); |
| 383 | void StoreToShiftedRegOffset(Primitive::Type type, |
| 384 | Location out_loc, |
| 385 | Register base, |
| 386 | Register reg_offset, |
| 387 | Condition cond = AL); |
| 388 | |
Nicolas Geoffray | 19a19cf | 2014-10-22 16:07:05 +0100 | [diff] [blame] | 389 | // Generate code to invoke a runtime entry point. |
Calin Juravle | 175dc73 | 2015-08-25 15:42:32 +0100 | [diff] [blame] | 390 | void InvokeRuntime(QuickEntrypointEnum entrypoint, |
| 391 | HInstruction* instruction, |
| 392 | uint32_t dex_pc, |
| 393 | SlowPathCode* slow_path) OVERRIDE; |
| 394 | |
| 395 | void InvokeRuntime(int32_t offset, |
| 396 | HInstruction* instruction, |
| 397 | uint32_t dex_pc, |
| 398 | SlowPathCode* slow_path); |
Nicolas Geoffray | 19a19cf | 2014-10-22 16:07:05 +0100 | [diff] [blame] | 399 | |
Roland Levillain | dec8f63 | 2016-07-22 17:10:06 +0100 | [diff] [blame] | 400 | // Generate code to invoke a runtime entry point, but do not record |
| 401 | // PC-related information in a stack map. |
| 402 | void InvokeRuntimeWithoutRecordingPcInfo(int32_t entry_point_offset, |
| 403 | HInstruction* instruction, |
| 404 | SlowPathCode* slow_path); |
| 405 | |
Nicolas Geoffray | 3c7bb98 | 2014-07-23 16:04:16 +0100 | [diff] [blame] | 406 | // Emit a write barrier. |
Nicolas Geoffray | 07276db | 2015-05-18 14:22:09 +0100 | [diff] [blame] | 407 | void MarkGCCard(Register temp, Register card, Register object, Register value, bool can_be_null); |
Nicolas Geoffray | 3c7bb98 | 2014-07-23 16:04:16 +0100 | [diff] [blame] | 408 | |
Roland Levillain | c928591 | 2015-12-18 10:38:42 +0000 | [diff] [blame] | 409 | void GenerateMemoryBarrier(MemBarrierKind kind); |
| 410 | |
Nicolas Geoffray | 92a73ae | 2014-10-16 11:12:52 +0100 | [diff] [blame] | 411 | Label* GetLabelOf(HBasicBlock* block) const { |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 412 | return CommonGetLabelOf<Label>(block_labels_, block); |
Nicolas Geoffray | 92a73ae | 2014-10-16 11:12:52 +0100 | [diff] [blame] | 413 | } |
| 414 | |
Nicolas Geoffray | de58ab2 | 2014-11-05 12:46:03 +0000 | [diff] [blame] | 415 | void Initialize() OVERRIDE { |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 416 | block_labels_ = CommonInitializeLabels<Label>(); |
Nicolas Geoffray | 92a73ae | 2014-10-16 11:12:52 +0100 | [diff] [blame] | 417 | } |
| 418 | |
Vladimir Marko | cf93a5c | 2015-06-16 11:33:24 +0000 | [diff] [blame] | 419 | void Finalize(CodeAllocator* allocator) OVERRIDE; |
| 420 | |
Calin Juravle | cd6dffe | 2015-01-08 17:35:35 +0000 | [diff] [blame] | 421 | const ArmInstructionSetFeatures& GetInstructionSetFeatures() const { |
Calin Juravle | 3416601 | 2014-12-19 17:22:29 +0000 | [diff] [blame] | 422 | return isa_features_; |
| 423 | } |
| 424 | |
Nicolas Geoffray | 840e546 | 2015-01-07 16:01:24 +0000 | [diff] [blame] | 425 | bool NeedsTwoRegisters(Primitive::Type type) const OVERRIDE { |
| 426 | return type == Primitive::kPrimDouble || type == Primitive::kPrimLong; |
| 427 | } |
| 428 | |
Nicolas Geoffray | 4dee636 | 2015-01-23 18:23:14 +0000 | [diff] [blame] | 429 | void ComputeSpillMask() OVERRIDE; |
| 430 | |
Nicolas Geoffray | 1cf9528 | 2014-12-12 19:22:03 +0000 | [diff] [blame] | 431 | Label* GetFrameEntryLabel() { return &frame_entry_label_; } |
| 432 | |
Vladimir Marko | cac5a7e | 2016-02-22 10:39:50 +0000 | [diff] [blame] | 433 | // Check if the desired_string_load_kind is supported. If it is, return it, |
| 434 | // otherwise return a fall-back kind that should be used instead. |
| 435 | HLoadString::LoadKind GetSupportedLoadStringKind( |
| 436 | HLoadString::LoadKind desired_string_load_kind) OVERRIDE; |
| 437 | |
Vladimir Marko | dbb7f5b | 2016-03-30 13:23:58 +0100 | [diff] [blame] | 438 | // Check if the desired_class_load_kind is supported. If it is, return it, |
| 439 | // otherwise return a fall-back kind that should be used instead. |
| 440 | HLoadClass::LoadKind GetSupportedLoadClassKind( |
| 441 | HLoadClass::LoadKind desired_class_load_kind) OVERRIDE; |
| 442 | |
Vladimir Marko | dc151b2 | 2015-10-15 18:02:30 +0100 | [diff] [blame] | 443 | // Check if the desired_dispatch_info is supported. If it is, return it, |
| 444 | // otherwise return a fall-back info that should be used instead. |
| 445 | HInvokeStaticOrDirect::DispatchInfo GetSupportedInvokeStaticOrDirectDispatch( |
| 446 | const HInvokeStaticOrDirect::DispatchInfo& desired_dispatch_info, |
| 447 | MethodReference target_method) OVERRIDE; |
| 448 | |
Andreas Gampe | 85b62f2 | 2015-09-09 13:15:38 -0700 | [diff] [blame] | 449 | void GenerateStaticOrDirectCall(HInvokeStaticOrDirect* invoke, Location temp) OVERRIDE; |
| 450 | void GenerateVirtualCall(HInvokeVirtual* invoke, Location temp) OVERRIDE; |
| 451 | |
| 452 | void MoveFromReturnRegister(Location trg, Primitive::Type type) OVERRIDE; |
Andreas Gampe | 2bcf9bf | 2015-01-29 09:56:07 -0800 | [diff] [blame] | 453 | |
Vladimir Marko | cac5a7e | 2016-02-22 10:39:50 +0000 | [diff] [blame] | 454 | // The PcRelativePatchInfo is used for PC-relative addressing of dex cache arrays |
Vladimir Marko | dbb7f5b | 2016-03-30 13:23:58 +0100 | [diff] [blame] | 455 | // and boot image strings/types. The only difference is the interpretation of the |
| 456 | // offset_or_index. The PC-relative address is loaded with three instructions, |
| 457 | // MOVW+MOVT to load the offset to base_reg and then ADD base_reg, PC. The offset |
| 458 | // is calculated from the ADD's effective PC, i.e. PC+4 on Thumb2. Though we |
Vladimir Marko | b4536b7 | 2015-11-24 13:45:23 +0000 | [diff] [blame] | 459 | // currently emit these 3 instructions together, instruction scheduling could |
| 460 | // split this sequence apart, so we keep separate labels for each of them. |
Vladimir Marko | cac5a7e | 2016-02-22 10:39:50 +0000 | [diff] [blame] | 461 | struct PcRelativePatchInfo { |
| 462 | PcRelativePatchInfo(const DexFile& dex_file, uint32_t off_or_idx) |
| 463 | : target_dex_file(dex_file), offset_or_index(off_or_idx) { } |
| 464 | PcRelativePatchInfo(PcRelativePatchInfo&& other) = default; |
Vladimir Marko | b4536b7 | 2015-11-24 13:45:23 +0000 | [diff] [blame] | 465 | |
Vladimir Marko | cac5a7e | 2016-02-22 10:39:50 +0000 | [diff] [blame] | 466 | const DexFile& target_dex_file; |
Vladimir Marko | dbb7f5b | 2016-03-30 13:23:58 +0100 | [diff] [blame] | 467 | // Either the dex cache array element offset or the string/type index. |
Vladimir Marko | cac5a7e | 2016-02-22 10:39:50 +0000 | [diff] [blame] | 468 | uint32_t offset_or_index; |
Vladimir Marko | b4536b7 | 2015-11-24 13:45:23 +0000 | [diff] [blame] | 469 | Label movw_label; |
| 470 | Label movt_label; |
| 471 | Label add_pc_label; |
| 472 | }; |
| 473 | |
Vladimir Marko | cac5a7e | 2016-02-22 10:39:50 +0000 | [diff] [blame] | 474 | PcRelativePatchInfo* NewPcRelativeStringPatch(const DexFile& dex_file, uint32_t string_index); |
Vladimir Marko | dbb7f5b | 2016-03-30 13:23:58 +0100 | [diff] [blame] | 475 | PcRelativePatchInfo* NewPcRelativeTypePatch(const DexFile& dex_file, uint32_t type_index); |
Vladimir Marko | cac5a7e | 2016-02-22 10:39:50 +0000 | [diff] [blame] | 476 | PcRelativePatchInfo* NewPcRelativeDexCacheArrayPatch(const DexFile& dex_file, |
| 477 | uint32_t element_offset); |
| 478 | Literal* DeduplicateBootImageStringLiteral(const DexFile& dex_file, uint32_t string_index); |
Vladimir Marko | dbb7f5b | 2016-03-30 13:23:58 +0100 | [diff] [blame] | 479 | Literal* DeduplicateBootImageTypeLiteral(const DexFile& dex_file, uint32_t type_index); |
Vladimir Marko | cac5a7e | 2016-02-22 10:39:50 +0000 | [diff] [blame] | 480 | Literal* DeduplicateBootImageAddressLiteral(uint32_t address); |
| 481 | Literal* DeduplicateDexCacheAddressLiteral(uint32_t address); |
Vladimir Marko | b4536b7 | 2015-11-24 13:45:23 +0000 | [diff] [blame] | 482 | |
Vladimir Marko | cac5a7e | 2016-02-22 10:39:50 +0000 | [diff] [blame] | 483 | void EmitLinkerPatches(ArenaVector<LinkerPatch>* linker_patches) OVERRIDE; |
Vladimir Marko | b4536b7 | 2015-11-24 13:45:23 +0000 | [diff] [blame] | 484 | |
Roland Levillain | c928591 | 2015-12-18 10:38:42 +0000 | [diff] [blame] | 485 | // Fast path implementation of ReadBarrier::Barrier for a heap |
| 486 | // reference field load when Baker's read barriers are used. |
| 487 | void GenerateFieldLoadWithBakerReadBarrier(HInstruction* instruction, |
Roland Levillain | e3f43ac | 2016-01-19 15:07:47 +0000 | [diff] [blame] | 488 | Location ref, |
Roland Levillain | c928591 | 2015-12-18 10:38:42 +0000 | [diff] [blame] | 489 | Register obj, |
| 490 | uint32_t offset, |
| 491 | Location temp, |
| 492 | bool needs_null_check); |
| 493 | // Fast path implementation of ReadBarrier::Barrier for a heap |
| 494 | // reference array load when Baker's read barriers are used. |
| 495 | void GenerateArrayLoadWithBakerReadBarrier(HInstruction* instruction, |
Roland Levillain | e3f43ac | 2016-01-19 15:07:47 +0000 | [diff] [blame] | 496 | Location ref, |
Roland Levillain | c928591 | 2015-12-18 10:38:42 +0000 | [diff] [blame] | 497 | Register obj, |
| 498 | uint32_t data_offset, |
| 499 | Location index, |
| 500 | Location temp, |
| 501 | bool needs_null_check); |
Roland Levillain | bfea335 | 2016-06-23 13:48:47 +0100 | [diff] [blame] | 502 | // Factored implementation used by GenerateFieldLoadWithBakerReadBarrier |
| 503 | // and GenerateArrayLoadWithBakerReadBarrier. |
| 504 | void GenerateReferenceLoadWithBakerReadBarrier(HInstruction* instruction, |
| 505 | Location ref, |
| 506 | Register obj, |
| 507 | uint32_t offset, |
| 508 | Location index, |
| 509 | ScaleFactor scale_factor, |
| 510 | Location temp, |
| 511 | bool needs_null_check); |
Roland Levillain | c928591 | 2015-12-18 10:38:42 +0000 | [diff] [blame] | 512 | |
| 513 | // Generate a read barrier for a heap reference within `instruction` |
| 514 | // using a slow path. |
Roland Levillain | 3b359c7 | 2015-11-17 19:35:12 +0000 | [diff] [blame] | 515 | // |
| 516 | // A read barrier for an object reference read from the heap is |
| 517 | // implemented as a call to the artReadBarrierSlow runtime entry |
| 518 | // point, which is passed the values in locations `ref`, `obj`, and |
| 519 | // `offset`: |
| 520 | // |
| 521 | // mirror::Object* artReadBarrierSlow(mirror::Object* ref, |
| 522 | // mirror::Object* obj, |
| 523 | // uint32_t offset); |
| 524 | // |
| 525 | // The `out` location contains the value returned by |
| 526 | // artReadBarrierSlow. |
| 527 | // |
| 528 | // When `index` is provided (i.e. for array accesses), the offset |
| 529 | // value passed to artReadBarrierSlow is adjusted to take `index` |
| 530 | // into account. |
Roland Levillain | c928591 | 2015-12-18 10:38:42 +0000 | [diff] [blame] | 531 | void GenerateReadBarrierSlow(HInstruction* instruction, |
| 532 | Location out, |
| 533 | Location ref, |
| 534 | Location obj, |
| 535 | uint32_t offset, |
| 536 | Location index = Location::NoLocation()); |
Roland Levillain | 3b359c7 | 2015-11-17 19:35:12 +0000 | [diff] [blame] | 537 | |
Roland Levillain | c928591 | 2015-12-18 10:38:42 +0000 | [diff] [blame] | 538 | // If read barriers are enabled, generate a read barrier for a heap |
| 539 | // reference using a slow path. If heap poisoning is enabled, also |
| 540 | // unpoison the reference in `out`. |
| 541 | void MaybeGenerateReadBarrierSlow(HInstruction* instruction, |
| 542 | Location out, |
| 543 | Location ref, |
| 544 | Location obj, |
| 545 | uint32_t offset, |
| 546 | Location index = Location::NoLocation()); |
Roland Levillain | 3b359c7 | 2015-11-17 19:35:12 +0000 | [diff] [blame] | 547 | |
Roland Levillain | c928591 | 2015-12-18 10:38:42 +0000 | [diff] [blame] | 548 | // Generate a read barrier for a GC root within `instruction` using |
| 549 | // a slow path. |
Roland Levillain | 3b359c7 | 2015-11-17 19:35:12 +0000 | [diff] [blame] | 550 | // |
| 551 | // A read barrier for an object reference GC root is implemented as |
| 552 | // a call to the artReadBarrierForRootSlow runtime entry point, |
| 553 | // which is passed the value in location `root`: |
| 554 | // |
| 555 | // mirror::Object* artReadBarrierForRootSlow(GcRoot<mirror::Object>* root); |
| 556 | // |
| 557 | // The `out` location contains the value returned by |
| 558 | // artReadBarrierForRootSlow. |
Roland Levillain | c928591 | 2015-12-18 10:38:42 +0000 | [diff] [blame] | 559 | void GenerateReadBarrierForRootSlow(HInstruction* instruction, Location out, Location root); |
Roland Levillain | 3b359c7 | 2015-11-17 19:35:12 +0000 | [diff] [blame] | 560 | |
David Srbecky | c7098ff | 2016-02-09 14:30:11 +0000 | [diff] [blame] | 561 | void GenerateNop(); |
| 562 | |
Calin Juravle | 2ae4818 | 2016-03-16 14:05:09 +0000 | [diff] [blame] | 563 | void GenerateImplicitNullCheck(HNullCheck* instruction); |
| 564 | void GenerateExplicitNullCheck(HNullCheck* instruction); |
| 565 | |
Nicolas Geoffray | 3c7bb98 | 2014-07-23 16:04:16 +0100 | [diff] [blame] | 566 | private: |
Vladimir Marko | b4536b7 | 2015-11-24 13:45:23 +0000 | [diff] [blame] | 567 | Register GetInvokeStaticOrDirectExtraParameter(HInvokeStaticOrDirect* invoke, Register temp); |
| 568 | |
Vladimir Marko | cac5a7e | 2016-02-22 10:39:50 +0000 | [diff] [blame] | 569 | using Uint32ToLiteralMap = ArenaSafeMap<uint32_t, Literal*>; |
Vladimir Marko | 5815501 | 2015-08-19 12:49:41 +0000 | [diff] [blame] | 570 | using MethodToLiteralMap = ArenaSafeMap<MethodReference, Literal*, MethodReferenceComparator>; |
Vladimir Marko | cac5a7e | 2016-02-22 10:39:50 +0000 | [diff] [blame] | 571 | using BootStringToLiteralMap = ArenaSafeMap<StringReference, |
| 572 | Literal*, |
| 573 | StringReferenceValueComparator>; |
Vladimir Marko | dbb7f5b | 2016-03-30 13:23:58 +0100 | [diff] [blame] | 574 | using BootTypeToLiteralMap = ArenaSafeMap<TypeReference, |
| 575 | Literal*, |
| 576 | TypeReferenceValueComparator>; |
Vladimir Marko | 5815501 | 2015-08-19 12:49:41 +0000 | [diff] [blame] | 577 | |
Vladimir Marko | cac5a7e | 2016-02-22 10:39:50 +0000 | [diff] [blame] | 578 | Literal* DeduplicateUint32Literal(uint32_t value, Uint32ToLiteralMap* map); |
Vladimir Marko | 5815501 | 2015-08-19 12:49:41 +0000 | [diff] [blame] | 579 | Literal* DeduplicateMethodLiteral(MethodReference target_method, MethodToLiteralMap* map); |
| 580 | Literal* DeduplicateMethodAddressLiteral(MethodReference target_method); |
| 581 | Literal* DeduplicateMethodCodeLiteral(MethodReference target_method); |
Vladimir Marko | cac5a7e | 2016-02-22 10:39:50 +0000 | [diff] [blame] | 582 | PcRelativePatchInfo* NewPcRelativePatch(const DexFile& dex_file, |
| 583 | uint32_t offset_or_index, |
| 584 | ArenaDeque<PcRelativePatchInfo>* patches); |
Vladimir Marko | 5815501 | 2015-08-19 12:49:41 +0000 | [diff] [blame] | 585 | |
Nicolas Geoffray | 92a73ae | 2014-10-16 11:12:52 +0100 | [diff] [blame] | 586 | // Labels for each block that will be compiled. |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 587 | Label* block_labels_; // Indexed by block id. |
Nicolas Geoffray | 1cf9528 | 2014-12-12 19:22:03 +0000 | [diff] [blame] | 588 | Label frame_entry_label_; |
Nicolas Geoffray | bab4ed7 | 2014-03-11 17:53:17 +0000 | [diff] [blame] | 589 | LocationsBuilderARM location_builder_; |
Nicolas Geoffray | 787c307 | 2014-03-17 10:20:19 +0000 | [diff] [blame] | 590 | InstructionCodeGeneratorARM instruction_visitor_; |
Nicolas Geoffray | e27f31a | 2014-06-12 17:53:14 +0100 | [diff] [blame] | 591 | ParallelMoveResolverARM move_resolver_; |
Nicolas Geoffray | 8d48673 | 2014-07-16 16:23:40 +0100 | [diff] [blame] | 592 | Thumb2Assembler assembler_; |
Calin Juravle | cd6dffe | 2015-01-08 17:35:35 +0000 | [diff] [blame] | 593 | const ArmInstructionSetFeatures& isa_features_; |
Nicolas Geoffray | 787c307 | 2014-03-17 10:20:19 +0000 | [diff] [blame] | 594 | |
Vladimir Marko | cac5a7e | 2016-02-22 10:39:50 +0000 | [diff] [blame] | 595 | // Deduplication map for 32-bit literals, used for non-patchable boot image addresses. |
| 596 | Uint32ToLiteralMap uint32_literals_; |
Vladimir Marko | 5815501 | 2015-08-19 12:49:41 +0000 | [diff] [blame] | 597 | // Method patch info, map MethodReference to a literal for method address and method code. |
| 598 | MethodToLiteralMap method_patches_; |
| 599 | MethodToLiteralMap call_patches_; |
| 600 | // Relative call patch info. |
| 601 | // Using ArenaDeque<> which retains element addresses on push/emplace_back(). |
| 602 | ArenaDeque<MethodPatchInfo<Label>> relative_call_patches_; |
Vladimir Marko | cac5a7e | 2016-02-22 10:39:50 +0000 | [diff] [blame] | 603 | // PC-relative patch info for each HArmDexCacheArraysBase. |
| 604 | ArenaDeque<PcRelativePatchInfo> pc_relative_dex_cache_patches_; |
| 605 | // Deduplication map for boot string literals for kBootImageLinkTimeAddress. |
| 606 | BootStringToLiteralMap boot_image_string_patches_; |
| 607 | // PC-relative String patch info. |
| 608 | ArenaDeque<PcRelativePatchInfo> pc_relative_string_patches_; |
Vladimir Marko | dbb7f5b | 2016-03-30 13:23:58 +0100 | [diff] [blame] | 609 | // Deduplication map for boot type literals for kBootImageLinkTimeAddress. |
| 610 | BootTypeToLiteralMap boot_image_type_patches_; |
| 611 | // PC-relative type patch info. |
| 612 | ArenaDeque<PcRelativePatchInfo> pc_relative_type_patches_; |
Vladimir Marko | cac5a7e | 2016-02-22 10:39:50 +0000 | [diff] [blame] | 613 | // Deduplication map for patchable boot image addresses. |
| 614 | Uint32ToLiteralMap boot_image_address_patches_; |
Vladimir Marko | b4536b7 | 2015-11-24 13:45:23 +0000 | [diff] [blame] | 615 | |
Nicolas Geoffray | d4dd255 | 2014-02-28 10:23:58 +0000 | [diff] [blame] | 616 | DISALLOW_COPY_AND_ASSIGN(CodeGeneratorARM); |
| 617 | }; |
| 618 | |
| 619 | } // namespace arm |
| 620 | } // namespace art |
| 621 | |
| 622 | #endif // ART_COMPILER_OPTIMIZING_CODE_GENERATOR_ARM_H_ |