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 | #include "code_generator.h" |
| 18 | |
Alex Light | 50fa993 | 2015-08-10 15:30:07 -0700 | [diff] [blame] | 19 | #ifdef ART_ENABLE_CODEGEN_arm |
Scott Wakeling | fe88546 | 2016-09-22 10:24:38 +0100 | [diff] [blame] | 20 | #include "code_generator_arm_vixl.h" |
Alex Light | 50fa993 | 2015-08-10 15:30:07 -0700 | [diff] [blame] | 21 | #endif |
| 22 | |
| 23 | #ifdef ART_ENABLE_CODEGEN_arm64 |
Alexandre Rames | 5319def | 2014-10-23 10:03:10 +0100 | [diff] [blame] | 24 | #include "code_generator_arm64.h" |
Alex Light | 50fa993 | 2015-08-10 15:30:07 -0700 | [diff] [blame] | 25 | #endif |
| 26 | |
| 27 | #ifdef ART_ENABLE_CODEGEN_x86 |
Nicolas Geoffray | d4dd255 | 2014-02-28 10:23:58 +0000 | [diff] [blame] | 28 | #include "code_generator_x86.h" |
Alex Light | 50fa993 | 2015-08-10 15:30:07 -0700 | [diff] [blame] | 29 | #endif |
| 30 | |
| 31 | #ifdef ART_ENABLE_CODEGEN_x86_64 |
Nicolas Geoffray | 9cf3552 | 2014-06-09 18:40:10 +0100 | [diff] [blame] | 32 | #include "code_generator_x86_64.h" |
Alex Light | 50fa993 | 2015-08-10 15:30:07 -0700 | [diff] [blame] | 33 | #endif |
| 34 | |
Goran Jakovljevic | f652cec | 2015-08-25 16:11:42 +0200 | [diff] [blame] | 35 | #ifdef ART_ENABLE_CODEGEN_mips |
| 36 | #include "code_generator_mips.h" |
| 37 | #endif |
| 38 | |
Alex Light | 50fa993 | 2015-08-10 15:30:07 -0700 | [diff] [blame] | 39 | #ifdef ART_ENABLE_CODEGEN_mips64 |
Alexey Frunze | 4dda337 | 2015-06-01 18:31:49 -0700 | [diff] [blame] | 40 | #include "code_generator_mips64.h" |
Alex Light | 50fa993 | 2015-08-10 15:30:07 -0700 | [diff] [blame] | 41 | #endif |
| 42 | |
Andreas Gampe | 5678db5 | 2017-06-08 14:11:18 -0700 | [diff] [blame] | 43 | #include "base/bit_utils.h" |
| 44 | #include "base/bit_utils_iterator.h" |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 45 | #include "base/casts.h" |
David Sehr | 67bf42e | 2018-02-26 16:43:04 -0800 | [diff] [blame] | 46 | #include "base/leb128.h" |
Andreas Gampe | c6ea7d0 | 2017-02-01 16:46:28 -0800 | [diff] [blame] | 47 | #include "class_linker.h" |
Yevgeny Rouban | e3ea838 | 2014-08-08 16:29:38 +0700 | [diff] [blame] | 48 | #include "compiled_method.h" |
David Sehr | 312f3b2 | 2018-03-19 08:39:26 -0700 | [diff] [blame] | 49 | #include "dex/bytecode_utils.h" |
David Sehr | 9e734c7 | 2018-01-04 17:56:19 -0800 | [diff] [blame] | 50 | #include "dex/code_item_accessors-inl.h" |
Nicolas Geoffray | 92cf83e | 2014-03-18 17:59:20 +0000 | [diff] [blame] | 51 | #include "dex/verified_method.h" |
Nicolas Geoffray | d28b969 | 2015-11-04 14:36:55 +0000 | [diff] [blame] | 52 | #include "driver/compiler_driver.h" |
Alexandre Rames | eb7b739 | 2015-06-19 14:47:01 +0100 | [diff] [blame] | 53 | #include "graph_visualizer.h" |
Vladimir Marko | e47f60c | 2018-02-21 13:43:28 +0000 | [diff] [blame] | 54 | #include "image.h" |
| 55 | #include "gc/space/image_space.h" |
Andreas Gampe | c15a2f4 | 2017-04-21 12:09:39 -0700 | [diff] [blame] | 56 | #include "intern_table.h" |
Nicolas Geoffray | 5bd05a5 | 2015-10-13 09:48:30 +0100 | [diff] [blame] | 57 | #include "intrinsics.h" |
Nicolas Geoffray | 19a19cf | 2014-10-22 16:07:05 +0100 | [diff] [blame] | 58 | #include "mirror/array-inl.h" |
| 59 | #include "mirror/object_array-inl.h" |
| 60 | #include "mirror/object_reference.h" |
Andreas Gampe | c6ea7d0 | 2017-02-01 16:46:28 -0800 | [diff] [blame] | 61 | #include "mirror/reference.h" |
Vladimir Marko | dce016e | 2016-04-28 13:10:02 +0100 | [diff] [blame] | 62 | #include "mirror/string.h" |
Alex Light | 50fa993 | 2015-08-10 15:30:07 -0700 | [diff] [blame] | 63 | #include "parallel_move_resolver.h" |
Andreas Gampe | c6ea7d0 | 2017-02-01 16:46:28 -0800 | [diff] [blame] | 64 | #include "scoped_thread_state_change-inl.h" |
Andreas Gampe | 8cf9cb3 | 2017-07-19 09:28:38 -0700 | [diff] [blame] | 65 | #include "ssa_liveness_analysis.h" |
David Srbecky | 71ec1cc | 2018-05-18 15:57:25 +0100 | [diff] [blame] | 66 | #include "stack_map.h" |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 67 | #include "stack_map_stream.h" |
Andreas Gampe | b486a98 | 2017-06-01 13:45:54 -0700 | [diff] [blame] | 68 | #include "thread-current-inl.h" |
Nicolas Geoffray | d4dd255 | 2014-02-28 10:23:58 +0000 | [diff] [blame] | 69 | #include "utils/assembler.h" |
Nicolas Geoffray | d4dd255 | 2014-02-28 10:23:58 +0000 | [diff] [blame] | 70 | |
| 71 | namespace art { |
| 72 | |
Mathieu Chartier | d776ff0 | 2017-01-17 09:32:18 -0800 | [diff] [blame] | 73 | // If true, we record the static and direct invokes in the invoke infos. |
| 74 | static constexpr bool kEnableDexLayoutOptimizations = false; |
| 75 | |
Alexandre Rames | 88c13cd | 2015-04-14 17:35:39 +0100 | [diff] [blame] | 76 | // Return whether a location is consistent with a type. |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 77 | static bool CheckType(DataType::Type type, Location location) { |
Alexandre Rames | 88c13cd | 2015-04-14 17:35:39 +0100 | [diff] [blame] | 78 | if (location.IsFpuRegister() |
| 79 | || (location.IsUnallocated() && (location.GetPolicy() == Location::kRequiresFpuRegister))) { |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 80 | return (type == DataType::Type::kFloat32) || (type == DataType::Type::kFloat64); |
Alexandre Rames | 88c13cd | 2015-04-14 17:35:39 +0100 | [diff] [blame] | 81 | } else if (location.IsRegister() || |
| 82 | (location.IsUnallocated() && (location.GetPolicy() == Location::kRequiresRegister))) { |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 83 | return DataType::IsIntegralType(type) || (type == DataType::Type::kReference); |
Alexandre Rames | 88c13cd | 2015-04-14 17:35:39 +0100 | [diff] [blame] | 84 | } else if (location.IsRegisterPair()) { |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 85 | return type == DataType::Type::kInt64; |
Alexandre Rames | 88c13cd | 2015-04-14 17:35:39 +0100 | [diff] [blame] | 86 | } else if (location.IsFpuRegisterPair()) { |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 87 | return type == DataType::Type::kFloat64; |
Alexandre Rames | 88c13cd | 2015-04-14 17:35:39 +0100 | [diff] [blame] | 88 | } else if (location.IsStackSlot()) { |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 89 | return (DataType::IsIntegralType(type) && type != DataType::Type::kInt64) |
| 90 | || (type == DataType::Type::kFloat32) |
| 91 | || (type == DataType::Type::kReference); |
Alexandre Rames | 88c13cd | 2015-04-14 17:35:39 +0100 | [diff] [blame] | 92 | } else if (location.IsDoubleStackSlot()) { |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 93 | return (type == DataType::Type::kInt64) || (type == DataType::Type::kFloat64); |
Alexandre Rames | 88c13cd | 2015-04-14 17:35:39 +0100 | [diff] [blame] | 94 | } else if (location.IsConstant()) { |
| 95 | if (location.GetConstant()->IsIntConstant()) { |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 96 | return DataType::IsIntegralType(type) && (type != DataType::Type::kInt64); |
Alexandre Rames | 88c13cd | 2015-04-14 17:35:39 +0100 | [diff] [blame] | 97 | } else if (location.GetConstant()->IsNullConstant()) { |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 98 | return type == DataType::Type::kReference; |
Alexandre Rames | 88c13cd | 2015-04-14 17:35:39 +0100 | [diff] [blame] | 99 | } else if (location.GetConstant()->IsLongConstant()) { |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 100 | return type == DataType::Type::kInt64; |
Alexandre Rames | 88c13cd | 2015-04-14 17:35:39 +0100 | [diff] [blame] | 101 | } else if (location.GetConstant()->IsFloatConstant()) { |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 102 | return type == DataType::Type::kFloat32; |
Alexandre Rames | 88c13cd | 2015-04-14 17:35:39 +0100 | [diff] [blame] | 103 | } else { |
| 104 | return location.GetConstant()->IsDoubleConstant() |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 105 | && (type == DataType::Type::kFloat64); |
Alexandre Rames | 88c13cd | 2015-04-14 17:35:39 +0100 | [diff] [blame] | 106 | } |
| 107 | } else { |
| 108 | return location.IsInvalid() || (location.GetPolicy() == Location::kAny); |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | // Check that a location summary is consistent with an instruction. |
| 113 | static bool CheckTypeConsistency(HInstruction* instruction) { |
| 114 | LocationSummary* locations = instruction->GetLocations(); |
| 115 | if (locations == nullptr) { |
| 116 | return true; |
| 117 | } |
| 118 | |
| 119 | if (locations->Out().IsUnallocated() |
| 120 | && (locations->Out().GetPolicy() == Location::kSameAsFirstInput)) { |
| 121 | DCHECK(CheckType(instruction->GetType(), locations->InAt(0))) |
| 122 | << instruction->GetType() |
| 123 | << " " << locations->InAt(0); |
| 124 | } else { |
| 125 | DCHECK(CheckType(instruction->GetType(), locations->Out())) |
| 126 | << instruction->GetType() |
| 127 | << " " << locations->Out(); |
| 128 | } |
| 129 | |
Vladimir Marko | e900491 | 2016-06-16 16:50:52 +0100 | [diff] [blame] | 130 | HConstInputsRef inputs = instruction->GetInputs(); |
Vladimir Marko | 372f10e | 2016-05-17 16:30:10 +0100 | [diff] [blame] | 131 | for (size_t i = 0; i < inputs.size(); ++i) { |
| 132 | DCHECK(CheckType(inputs[i]->GetType(), locations->InAt(i))) |
| 133 | << inputs[i]->GetType() << " " << locations->InAt(i); |
Alexandre Rames | 88c13cd | 2015-04-14 17:35:39 +0100 | [diff] [blame] | 134 | } |
| 135 | |
| 136 | HEnvironment* environment = instruction->GetEnvironment(); |
| 137 | for (size_t i = 0; i < instruction->EnvironmentSize(); ++i) { |
| 138 | if (environment->GetInstructionAt(i) != nullptr) { |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 139 | DataType::Type type = environment->GetInstructionAt(i)->GetType(); |
Nicolas Geoffray | 0a23d74 | 2015-05-07 11:57:35 +0100 | [diff] [blame] | 140 | DCHECK(CheckType(type, environment->GetLocationAt(i))) |
| 141 | << type << " " << environment->GetLocationAt(i); |
Alexandre Rames | 88c13cd | 2015-04-14 17:35:39 +0100 | [diff] [blame] | 142 | } else { |
Nicolas Geoffray | 0a23d74 | 2015-05-07 11:57:35 +0100 | [diff] [blame] | 143 | DCHECK(environment->GetLocationAt(i).IsInvalid()) |
| 144 | << environment->GetLocationAt(i); |
Alexandre Rames | 88c13cd | 2015-04-14 17:35:39 +0100 | [diff] [blame] | 145 | } |
| 146 | } |
| 147 | return true; |
| 148 | } |
| 149 | |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 150 | class CodeGenerator::CodeGenerationData : public DeletableArenaObject<kArenaAllocCodeGenerator> { |
| 151 | public: |
| 152 | static std::unique_ptr<CodeGenerationData> Create(ArenaStack* arena_stack, |
| 153 | InstructionSet instruction_set) { |
| 154 | ScopedArenaAllocator allocator(arena_stack); |
| 155 | void* memory = allocator.Alloc<CodeGenerationData>(kArenaAllocCodeGenerator); |
| 156 | return std::unique_ptr<CodeGenerationData>( |
| 157 | ::new (memory) CodeGenerationData(std::move(allocator), instruction_set)); |
| 158 | } |
| 159 | |
| 160 | ScopedArenaAllocator* GetScopedAllocator() { |
| 161 | return &allocator_; |
| 162 | } |
| 163 | |
| 164 | void AddSlowPath(SlowPathCode* slow_path) { |
| 165 | slow_paths_.emplace_back(std::unique_ptr<SlowPathCode>(slow_path)); |
| 166 | } |
| 167 | |
| 168 | ArrayRef<const std::unique_ptr<SlowPathCode>> GetSlowPaths() const { |
| 169 | return ArrayRef<const std::unique_ptr<SlowPathCode>>(slow_paths_); |
| 170 | } |
| 171 | |
| 172 | StackMapStream* GetStackMapStream() { return &stack_map_stream_; } |
| 173 | |
| 174 | void ReserveJitStringRoot(StringReference string_reference, Handle<mirror::String> string) { |
| 175 | jit_string_roots_.Overwrite(string_reference, |
| 176 | reinterpret_cast64<uint64_t>(string.GetReference())); |
| 177 | } |
| 178 | |
| 179 | uint64_t GetJitStringRootIndex(StringReference string_reference) const { |
| 180 | return jit_string_roots_.Get(string_reference); |
| 181 | } |
| 182 | |
| 183 | size_t GetNumberOfJitStringRoots() const { |
| 184 | return jit_string_roots_.size(); |
| 185 | } |
| 186 | |
| 187 | void ReserveJitClassRoot(TypeReference type_reference, Handle<mirror::Class> klass) { |
| 188 | jit_class_roots_.Overwrite(type_reference, reinterpret_cast64<uint64_t>(klass.GetReference())); |
| 189 | } |
| 190 | |
| 191 | uint64_t GetJitClassRootIndex(TypeReference type_reference) const { |
| 192 | return jit_class_roots_.Get(type_reference); |
| 193 | } |
| 194 | |
| 195 | size_t GetNumberOfJitClassRoots() const { |
| 196 | return jit_class_roots_.size(); |
| 197 | } |
| 198 | |
| 199 | size_t GetNumberOfJitRoots() const { |
| 200 | return GetNumberOfJitStringRoots() + GetNumberOfJitClassRoots(); |
| 201 | } |
| 202 | |
| 203 | void EmitJitRoots(Handle<mirror::ObjectArray<mirror::Object>> roots) |
| 204 | REQUIRES_SHARED(Locks::mutator_lock_); |
| 205 | |
| 206 | private: |
| 207 | CodeGenerationData(ScopedArenaAllocator&& allocator, InstructionSet instruction_set) |
| 208 | : allocator_(std::move(allocator)), |
| 209 | stack_map_stream_(&allocator_, instruction_set), |
| 210 | slow_paths_(allocator_.Adapter(kArenaAllocCodeGenerator)), |
| 211 | jit_string_roots_(StringReferenceValueComparator(), |
| 212 | allocator_.Adapter(kArenaAllocCodeGenerator)), |
| 213 | jit_class_roots_(TypeReferenceValueComparator(), |
| 214 | allocator_.Adapter(kArenaAllocCodeGenerator)) { |
| 215 | slow_paths_.reserve(kDefaultSlowPathsCapacity); |
| 216 | } |
| 217 | |
| 218 | static constexpr size_t kDefaultSlowPathsCapacity = 8; |
| 219 | |
| 220 | ScopedArenaAllocator allocator_; |
| 221 | StackMapStream stack_map_stream_; |
| 222 | ScopedArenaVector<std::unique_ptr<SlowPathCode>> slow_paths_; |
| 223 | |
| 224 | // Maps a StringReference (dex_file, string_index) to the index in the literal table. |
| 225 | // Entries are intially added with a pointer in the handle zone, and `EmitJitRoots` |
| 226 | // will compute all the indices. |
| 227 | ScopedArenaSafeMap<StringReference, uint64_t, StringReferenceValueComparator> jit_string_roots_; |
| 228 | |
| 229 | // Maps a ClassReference (dex_file, type_index) to the index in the literal table. |
| 230 | // Entries are intially added with a pointer in the handle zone, and `EmitJitRoots` |
| 231 | // will compute all the indices. |
| 232 | ScopedArenaSafeMap<TypeReference, uint64_t, TypeReferenceValueComparator> jit_class_roots_; |
| 233 | }; |
| 234 | |
| 235 | void CodeGenerator::CodeGenerationData::EmitJitRoots( |
| 236 | Handle<mirror::ObjectArray<mirror::Object>> roots) { |
| 237 | DCHECK_EQ(static_cast<size_t>(roots->GetLength()), GetNumberOfJitRoots()); |
| 238 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 239 | size_t index = 0; |
| 240 | for (auto& entry : jit_string_roots_) { |
| 241 | // Update the `roots` with the string, and replace the address temporarily |
| 242 | // stored to the index in the table. |
| 243 | uint64_t address = entry.second; |
| 244 | roots->Set(index, reinterpret_cast<StackReference<mirror::String>*>(address)->AsMirrorPtr()); |
| 245 | DCHECK(roots->Get(index) != nullptr); |
| 246 | entry.second = index; |
| 247 | // Ensure the string is strongly interned. This is a requirement on how the JIT |
| 248 | // handles strings. b/32995596 |
| 249 | class_linker->GetInternTable()->InternStrong( |
| 250 | reinterpret_cast<mirror::String*>(roots->Get(index))); |
| 251 | ++index; |
| 252 | } |
| 253 | for (auto& entry : jit_class_roots_) { |
| 254 | // Update the `roots` with the class, and replace the address temporarily |
| 255 | // stored to the index in the table. |
| 256 | uint64_t address = entry.second; |
| 257 | roots->Set(index, reinterpret_cast<StackReference<mirror::Class>*>(address)->AsMirrorPtr()); |
| 258 | DCHECK(roots->Get(index) != nullptr); |
| 259 | entry.second = index; |
| 260 | ++index; |
| 261 | } |
| 262 | } |
| 263 | |
| 264 | ScopedArenaAllocator* CodeGenerator::GetScopedAllocator() { |
| 265 | DCHECK(code_generation_data_ != nullptr); |
| 266 | return code_generation_data_->GetScopedAllocator(); |
| 267 | } |
| 268 | |
| 269 | StackMapStream* CodeGenerator::GetStackMapStream() { |
| 270 | DCHECK(code_generation_data_ != nullptr); |
| 271 | return code_generation_data_->GetStackMapStream(); |
| 272 | } |
| 273 | |
| 274 | void CodeGenerator::ReserveJitStringRoot(StringReference string_reference, |
| 275 | Handle<mirror::String> string) { |
| 276 | DCHECK(code_generation_data_ != nullptr); |
| 277 | code_generation_data_->ReserveJitStringRoot(string_reference, string); |
| 278 | } |
| 279 | |
| 280 | uint64_t CodeGenerator::GetJitStringRootIndex(StringReference string_reference) { |
| 281 | DCHECK(code_generation_data_ != nullptr); |
| 282 | return code_generation_data_->GetJitStringRootIndex(string_reference); |
| 283 | } |
| 284 | |
| 285 | void CodeGenerator::ReserveJitClassRoot(TypeReference type_reference, Handle<mirror::Class> klass) { |
| 286 | DCHECK(code_generation_data_ != nullptr); |
| 287 | code_generation_data_->ReserveJitClassRoot(type_reference, klass); |
| 288 | } |
| 289 | |
| 290 | uint64_t CodeGenerator::GetJitClassRootIndex(TypeReference type_reference) { |
| 291 | DCHECK(code_generation_data_ != nullptr); |
| 292 | return code_generation_data_->GetJitClassRootIndex(type_reference); |
| 293 | } |
| 294 | |
| 295 | void CodeGenerator::EmitJitRootPatches(uint8_t* code ATTRIBUTE_UNUSED, |
| 296 | const uint8_t* roots_data ATTRIBUTE_UNUSED) { |
| 297 | DCHECK(code_generation_data_ != nullptr); |
| 298 | DCHECK_EQ(code_generation_data_->GetNumberOfJitStringRoots(), 0u); |
| 299 | DCHECK_EQ(code_generation_data_->GetNumberOfJitClassRoots(), 0u); |
| 300 | } |
| 301 | |
Vladimir Marko | dce016e | 2016-04-28 13:10:02 +0100 | [diff] [blame] | 302 | uint32_t CodeGenerator::GetArrayLengthOffset(HArrayLength* array_length) { |
| 303 | return array_length->IsStringLength() |
| 304 | ? mirror::String::CountOffset().Uint32Value() |
| 305 | : mirror::Array::LengthOffset().Uint32Value(); |
| 306 | } |
| 307 | |
Vladimir Marko | 87f3fcb | 2016-04-28 15:52:11 +0100 | [diff] [blame] | 308 | uint32_t CodeGenerator::GetArrayDataOffset(HArrayGet* array_get) { |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 309 | DCHECK(array_get->GetType() == DataType::Type::kUint16 || !array_get->IsStringCharAt()); |
Vladimir Marko | 87f3fcb | 2016-04-28 15:52:11 +0100 | [diff] [blame] | 310 | return array_get->IsStringCharAt() |
| 311 | ? mirror::String::ValueOffset().Uint32Value() |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 312 | : mirror::Array::DataOffset(DataType::Size(array_get->GetType())).Uint32Value(); |
Vladimir Marko | 87f3fcb | 2016-04-28 15:52:11 +0100 | [diff] [blame] | 313 | } |
| 314 | |
Nicolas Geoffray | dc23d83 | 2015-02-16 11:15:43 +0000 | [diff] [blame] | 315 | bool CodeGenerator::GoesToNextBlock(HBasicBlock* current, HBasicBlock* next) const { |
Vladimir Marko | fa6b93c | 2015-09-15 10:15:55 +0100 | [diff] [blame] | 316 | DCHECK_EQ((*block_order_)[current_block_index_], current); |
Nicolas Geoffray | dc23d83 | 2015-02-16 11:15:43 +0000 | [diff] [blame] | 317 | return GetNextBlockToEmit() == FirstNonEmptyBlock(next); |
| 318 | } |
| 319 | |
| 320 | HBasicBlock* CodeGenerator::GetNextBlockToEmit() const { |
Vladimir Marko | fa6b93c | 2015-09-15 10:15:55 +0100 | [diff] [blame] | 321 | for (size_t i = current_block_index_ + 1; i < block_order_->size(); ++i) { |
| 322 | HBasicBlock* block = (*block_order_)[i]; |
David Brazdil | fc6a86a | 2015-06-26 10:33:45 +0000 | [diff] [blame] | 323 | if (!block->IsSingleJump()) { |
Nicolas Geoffray | dc23d83 | 2015-02-16 11:15:43 +0000 | [diff] [blame] | 324 | return block; |
| 325 | } |
| 326 | } |
| 327 | return nullptr; |
| 328 | } |
| 329 | |
| 330 | HBasicBlock* CodeGenerator::FirstNonEmptyBlock(HBasicBlock* block) const { |
David Brazdil | fc6a86a | 2015-06-26 10:33:45 +0000 | [diff] [blame] | 331 | while (block->IsSingleJump()) { |
Vladimir Marko | ec7802a | 2015-10-01 20:57:57 +0100 | [diff] [blame] | 332 | block = block->GetSuccessors()[0]; |
Nicolas Geoffray | dc23d83 | 2015-02-16 11:15:43 +0000 | [diff] [blame] | 333 | } |
| 334 | return block; |
| 335 | } |
| 336 | |
Alexandre Rames | eb7b739 | 2015-06-19 14:47:01 +0100 | [diff] [blame] | 337 | class DisassemblyScope { |
| 338 | public: |
| 339 | DisassemblyScope(HInstruction* instruction, const CodeGenerator& codegen) |
| 340 | : codegen_(codegen), instruction_(instruction), start_offset_(static_cast<size_t>(-1)) { |
| 341 | if (codegen_.GetDisassemblyInformation() != nullptr) { |
| 342 | start_offset_ = codegen_.GetAssembler().CodeSize(); |
| 343 | } |
| 344 | } |
| 345 | |
| 346 | ~DisassemblyScope() { |
| 347 | // We avoid building this data when we know it will not be used. |
| 348 | if (codegen_.GetDisassemblyInformation() != nullptr) { |
| 349 | codegen_.GetDisassemblyInformation()->AddInstructionInterval( |
| 350 | instruction_, start_offset_, codegen_.GetAssembler().CodeSize()); |
| 351 | } |
| 352 | } |
| 353 | |
| 354 | private: |
| 355 | const CodeGenerator& codegen_; |
| 356 | HInstruction* instruction_; |
| 357 | size_t start_offset_; |
| 358 | }; |
| 359 | |
| 360 | |
| 361 | void CodeGenerator::GenerateSlowPaths() { |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 362 | DCHECK(code_generation_data_ != nullptr); |
Alexandre Rames | eb7b739 | 2015-06-19 14:47:01 +0100 | [diff] [blame] | 363 | size_t code_start = 0; |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 364 | for (const std::unique_ptr<SlowPathCode>& slow_path_ptr : code_generation_data_->GetSlowPaths()) { |
| 365 | SlowPathCode* slow_path = slow_path_ptr.get(); |
Vladimir Marko | 0f7dca4 | 2015-11-02 14:36:43 +0000 | [diff] [blame] | 366 | current_slow_path_ = slow_path; |
Alexandre Rames | eb7b739 | 2015-06-19 14:47:01 +0100 | [diff] [blame] | 367 | if (disasm_info_ != nullptr) { |
| 368 | code_start = GetAssembler()->CodeSize(); |
| 369 | } |
David Srbecky | 9cd6d37 | 2016-02-09 15:24:47 +0000 | [diff] [blame] | 370 | // Record the dex pc at start of slow path (required for java line number mapping). |
David Srbecky | d28f4a0 | 2016-03-14 17:14:24 +0000 | [diff] [blame] | 371 | MaybeRecordNativeDebugInfo(slow_path->GetInstruction(), slow_path->GetDexPc(), slow_path); |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 372 | slow_path->EmitNativeCode(this); |
Alexandre Rames | eb7b739 | 2015-06-19 14:47:01 +0100 | [diff] [blame] | 373 | if (disasm_info_ != nullptr) { |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 374 | disasm_info_->AddSlowPathInterval(slow_path, code_start, GetAssembler()->CodeSize()); |
Alexandre Rames | eb7b739 | 2015-06-19 14:47:01 +0100 | [diff] [blame] | 375 | } |
| 376 | } |
Vladimir Marko | 0f7dca4 | 2015-11-02 14:36:43 +0000 | [diff] [blame] | 377 | current_slow_path_ = nullptr; |
Alexandre Rames | eb7b739 | 2015-06-19 14:47:01 +0100 | [diff] [blame] | 378 | } |
| 379 | |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 380 | void CodeGenerator::InitializeCodeGenerationData() { |
| 381 | DCHECK(code_generation_data_ == nullptr); |
| 382 | code_generation_data_ = CodeGenerationData::Create(graph_->GetArenaStack(), GetInstructionSet()); |
| 383 | } |
| 384 | |
David Brazdil | 58282f4 | 2016-01-14 12:45:10 +0000 | [diff] [blame] | 385 | void CodeGenerator::Compile(CodeAllocator* allocator) { |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 386 | InitializeCodeGenerationData(); |
| 387 | |
David Brazdil | 58282f4 | 2016-01-14 12:45:10 +0000 | [diff] [blame] | 388 | // The register allocator already called `InitializeCodeGeneration`, |
| 389 | // where the frame size has been computed. |
| 390 | DCHECK(block_order_ != nullptr); |
| 391 | Initialize(); |
| 392 | |
Nicolas Geoffray | 8a16d97 | 2014-09-11 10:30:02 +0100 | [diff] [blame] | 393 | HGraphVisitor* instruction_visitor = GetInstructionVisitor(); |
Nicolas Geoffray | 4c204ba | 2015-02-03 15:12:35 +0000 | [diff] [blame] | 394 | DCHECK_EQ(current_block_index_, 0u); |
Alexandre Rames | eb7b739 | 2015-06-19 14:47:01 +0100 | [diff] [blame] | 395 | |
| 396 | size_t frame_start = GetAssembler()->CodeSize(); |
Nicolas Geoffray | 4c204ba | 2015-02-03 15:12:35 +0000 | [diff] [blame] | 397 | GenerateFrameEntry(); |
David Srbecky | c6b4dd8 | 2015-04-07 20:32:43 +0100 | [diff] [blame] | 398 | DCHECK_EQ(GetAssembler()->cfi().GetCurrentCFAOffset(), static_cast<int>(frame_size_)); |
Alexandre Rames | eb7b739 | 2015-06-19 14:47:01 +0100 | [diff] [blame] | 399 | if (disasm_info_ != nullptr) { |
| 400 | disasm_info_->SetFrameEntryInterval(frame_start, GetAssembler()->CodeSize()); |
| 401 | } |
| 402 | |
Vladimir Marko | fa6b93c | 2015-09-15 10:15:55 +0100 | [diff] [blame] | 403 | for (size_t e = block_order_->size(); current_block_index_ < e; ++current_block_index_) { |
| 404 | HBasicBlock* block = (*block_order_)[current_block_index_]; |
Nicolas Geoffray | dc23d83 | 2015-02-16 11:15:43 +0000 | [diff] [blame] | 405 | // Don't generate code for an empty block. Its predecessors will branch to its successor |
| 406 | // directly. Also, the label of that block will not be emitted, so this helps catch |
| 407 | // errors where we reference that label. |
David Brazdil | fc6a86a | 2015-06-26 10:33:45 +0000 | [diff] [blame] | 408 | if (block->IsSingleJump()) continue; |
Nicolas Geoffray | 92a73ae | 2014-10-16 11:12:52 +0100 | [diff] [blame] | 409 | Bind(block); |
David Srbecky | c7098ff | 2016-02-09 14:30:11 +0000 | [diff] [blame] | 410 | // This ensures that we have correct native line mapping for all native instructions. |
| 411 | // It is necessary to make stepping over a statement work. Otherwise, any initial |
| 412 | // instructions (e.g. moves) would be assumed to be the start of next statement. |
| 413 | MaybeRecordNativeDebugInfo(nullptr /* instruction */, block->GetDexPc()); |
Nicolas Geoffray | 86dbb9a | 2014-06-04 11:12:39 +0100 | [diff] [blame] | 414 | for (HInstructionIterator it(block->GetInstructions()); !it.Done(); it.Advance()) { |
| 415 | HInstruction* current = it.Current(); |
David Srbecky | d28f4a0 | 2016-03-14 17:14:24 +0000 | [diff] [blame] | 416 | if (current->HasEnvironment()) { |
| 417 | // Create stackmap for HNativeDebugInfo or any instruction which calls native code. |
| 418 | // Note that we need correct mapping for the native PC of the call instruction, |
| 419 | // so the runtime's stackmap is not sufficient since it is at PC after the call. |
| 420 | MaybeRecordNativeDebugInfo(current, block->GetDexPc()); |
| 421 | } |
Alexandre Rames | eb7b739 | 2015-06-19 14:47:01 +0100 | [diff] [blame] | 422 | DisassemblyScope disassembly_scope(current, *this); |
Alexandre Rames | 88c13cd | 2015-04-14 17:35:39 +0100 | [diff] [blame] | 423 | DCHECK(CheckTypeConsistency(current)); |
Nicolas Geoffray | 86dbb9a | 2014-06-04 11:12:39 +0100 | [diff] [blame] | 424 | current->Accept(instruction_visitor); |
| 425 | } |
Nicolas Geoffray | d4dd255 | 2014-02-28 10:23:58 +0000 | [diff] [blame] | 426 | } |
Nicolas Geoffray | 4c204ba | 2015-02-03 15:12:35 +0000 | [diff] [blame] | 427 | |
Alexandre Rames | eb7b739 | 2015-06-19 14:47:01 +0100 | [diff] [blame] | 428 | GenerateSlowPaths(); |
Nicolas Geoffray | 4c204ba | 2015-02-03 15:12:35 +0000 | [diff] [blame] | 429 | |
David Brazdil | 77a48ae | 2015-09-15 12:34:04 +0000 | [diff] [blame] | 430 | // Emit catch stack maps at the end of the stack map stream as expected by the |
| 431 | // runtime exception handler. |
David Brazdil | 58282f4 | 2016-01-14 12:45:10 +0000 | [diff] [blame] | 432 | if (graph_->HasTryCatch()) { |
David Brazdil | 77a48ae | 2015-09-15 12:34:04 +0000 | [diff] [blame] | 433 | RecordCatchBlockInfo(); |
| 434 | } |
| 435 | |
Nicolas Geoffray | 4c204ba | 2015-02-03 15:12:35 +0000 | [diff] [blame] | 436 | // Finalize instructions in assember; |
Serban Constantinescu | 32f5b4d | 2014-11-25 20:05:46 +0000 | [diff] [blame] | 437 | Finalize(allocator); |
Nicolas Geoffray | d4dd255 | 2014-02-28 10:23:58 +0000 | [diff] [blame] | 438 | } |
| 439 | |
Serban Constantinescu | 32f5b4d | 2014-11-25 20:05:46 +0000 | [diff] [blame] | 440 | void CodeGenerator::Finalize(CodeAllocator* allocator) { |
Nicolas Geoffray | 86dbb9a | 2014-06-04 11:12:39 +0100 | [diff] [blame] | 441 | size_t code_size = GetAssembler()->CodeSize(); |
| 442 | uint8_t* buffer = allocator->Allocate(code_size); |
Serban Constantinescu | 32f5b4d | 2014-11-25 20:05:46 +0000 | [diff] [blame] | 443 | |
Nicolas Geoffray | 86dbb9a | 2014-06-04 11:12:39 +0100 | [diff] [blame] | 444 | MemoryRegion code(buffer, code_size); |
| 445 | GetAssembler()->FinalizeInstructions(code); |
Nicolas Geoffray | d4dd255 | 2014-02-28 10:23:58 +0000 | [diff] [blame] | 446 | } |
| 447 | |
Vladimir Marko | d8dbc8d | 2017-09-20 13:37:47 +0100 | [diff] [blame] | 448 | void CodeGenerator::EmitLinkerPatches( |
| 449 | ArenaVector<linker::LinkerPatch>* linker_patches ATTRIBUTE_UNUSED) { |
Vladimir Marko | 5815501 | 2015-08-19 12:49:41 +0000 | [diff] [blame] | 450 | // No linker patches by default. |
| 451 | } |
| 452 | |
Vladimir Marko | ca1e038 | 2018-04-11 09:58:41 +0000 | [diff] [blame] | 453 | bool CodeGenerator::NeedsThunkCode(const linker::LinkerPatch& patch ATTRIBUTE_UNUSED) const { |
| 454 | // Code generators that create patches requiring thunk compilation should override this function. |
| 455 | return false; |
| 456 | } |
| 457 | |
| 458 | void CodeGenerator::EmitThunkCode(const linker::LinkerPatch& patch ATTRIBUTE_UNUSED, |
| 459 | /*out*/ ArenaVector<uint8_t>* code ATTRIBUTE_UNUSED, |
| 460 | /*out*/ std::string* debug_name ATTRIBUTE_UNUSED) { |
| 461 | // Code generators that create patches requiring thunk compilation should override this function. |
| 462 | LOG(FATAL) << "Unexpected call to EmitThunkCode()."; |
| 463 | } |
| 464 | |
Nicolas Geoffray | 4c204ba | 2015-02-03 15:12:35 +0000 | [diff] [blame] | 465 | void CodeGenerator::InitializeCodeGeneration(size_t number_of_spill_slots, |
Vladimir Marko | 70e9746 | 2016-08-09 11:04:26 +0100 | [diff] [blame] | 466 | size_t maximum_safepoint_spill_size, |
Nicolas Geoffray | 4c204ba | 2015-02-03 15:12:35 +0000 | [diff] [blame] | 467 | size_t number_of_out_slots, |
Vladimir Marko | fa6b93c | 2015-09-15 10:15:55 +0100 | [diff] [blame] | 468 | const ArenaVector<HBasicBlock*>& block_order) { |
Nicolas Geoffray | 4c204ba | 2015-02-03 15:12:35 +0000 | [diff] [blame] | 469 | block_order_ = &block_order; |
Vladimir Marko | fa6b93c | 2015-09-15 10:15:55 +0100 | [diff] [blame] | 470 | DCHECK(!block_order.empty()); |
| 471 | DCHECK(block_order[0] == GetGraph()->GetEntryBlock()); |
Nicolas Geoffray | 4dee636 | 2015-01-23 18:23:14 +0000 | [diff] [blame] | 472 | ComputeSpillMask(); |
Alexandre Rames | 68bd9b9 | 2016-07-15 17:41:13 +0100 | [diff] [blame] | 473 | first_register_slot_in_slow_path_ = RoundUp( |
| 474 | (number_of_out_slots + number_of_spill_slots) * kVRegSize, GetPreferredSlotsAlignment()); |
Nicolas Geoffray | 3bca0df | 2014-09-19 11:01:00 +0100 | [diff] [blame] | 475 | |
Nicolas Geoffray | c0572a4 | 2015-02-06 14:35:25 +0000 | [diff] [blame] | 476 | if (number_of_spill_slots == 0 |
| 477 | && !HasAllocatedCalleeSaveRegisters() |
| 478 | && IsLeafMethod() |
| 479 | && !RequiresCurrentMethod()) { |
Vladimir Marko | 70e9746 | 2016-08-09 11:04:26 +0100 | [diff] [blame] | 480 | DCHECK_EQ(maximum_safepoint_spill_size, 0u); |
Nicolas Geoffray | c0572a4 | 2015-02-06 14:35:25 +0000 | [diff] [blame] | 481 | SetFrameSize(CallPushesPC() ? GetWordSize() : 0); |
| 482 | } else { |
| 483 | SetFrameSize(RoundUp( |
Alexandre Rames | 68bd9b9 | 2016-07-15 17:41:13 +0100 | [diff] [blame] | 484 | first_register_slot_in_slow_path_ |
Vladimir Marko | 70e9746 | 2016-08-09 11:04:26 +0100 | [diff] [blame] | 485 | + maximum_safepoint_spill_size |
Mingyao Yang | 063fc77 | 2016-08-02 11:02:54 -0700 | [diff] [blame] | 486 | + (GetGraph()->HasShouldDeoptimizeFlag() ? kShouldDeoptimizeFlagSize : 0) |
Nicolas Geoffray | c0572a4 | 2015-02-06 14:35:25 +0000 | [diff] [blame] | 487 | + FrameEntrySpillSize(), |
| 488 | kStackAlignment)); |
| 489 | } |
Nicolas Geoffray | ab032bc | 2014-07-15 12:55:21 +0100 | [diff] [blame] | 490 | } |
| 491 | |
Nicolas Geoffray | fd88f16 | 2015-06-03 11:23:52 +0100 | [diff] [blame] | 492 | void CodeGenerator::CreateCommonInvokeLocationSummary( |
Nicolas Geoffray | 4e40c26 | 2015-06-03 12:02:38 +0100 | [diff] [blame] | 493 | HInvoke* invoke, InvokeDexCallingConventionVisitor* visitor) { |
Vladimir Marko | ca6fff8 | 2017-10-03 14:49:14 +0100 | [diff] [blame] | 494 | ArenaAllocator* allocator = invoke->GetBlock()->GetGraph()->GetAllocator(); |
Serban Constantinescu | 54ff482 | 2016-07-07 18:03:19 +0100 | [diff] [blame] | 495 | LocationSummary* locations = new (allocator) LocationSummary(invoke, |
| 496 | LocationSummary::kCallOnMainOnly); |
Nicolas Geoffray | fd88f16 | 2015-06-03 11:23:52 +0100 | [diff] [blame] | 497 | |
| 498 | for (size_t i = 0; i < invoke->GetNumberOfArguments(); i++) { |
| 499 | HInstruction* input = invoke->InputAt(i); |
| 500 | locations->SetInAt(i, visitor->GetNextLocation(input->GetType())); |
| 501 | } |
| 502 | |
| 503 | locations->SetOut(visitor->GetReturnLocation(invoke->GetType())); |
Nicolas Geoffray | 94015b9 | 2015-06-04 18:21:04 +0100 | [diff] [blame] | 504 | |
| 505 | if (invoke->IsInvokeStaticOrDirect()) { |
| 506 | HInvokeStaticOrDirect* call = invoke->AsInvokeStaticOrDirect(); |
Vladimir Marko | dc151b2 | 2015-10-15 18:02:30 +0100 | [diff] [blame] | 507 | switch (call->GetMethodLoadKind()) { |
| 508 | case HInvokeStaticOrDirect::MethodLoadKind::kRecursive: |
Vladimir Marko | c53c079 | 2015-11-19 15:48:33 +0000 | [diff] [blame] | 509 | locations->SetInAt(call->GetSpecialInputIndex(), visitor->GetMethodLocation()); |
Vladimir Marko | dc151b2 | 2015-10-15 18:02:30 +0100 | [diff] [blame] | 510 | break; |
Vladimir Marko | e7197bf | 2017-06-02 17:00:23 +0100 | [diff] [blame] | 511 | case HInvokeStaticOrDirect::MethodLoadKind::kRuntimeCall: |
Vladimir Marko | dc151b2 | 2015-10-15 18:02:30 +0100 | [diff] [blame] | 512 | locations->AddTemp(visitor->GetMethodLocation()); |
Vladimir Marko | c53c079 | 2015-11-19 15:48:33 +0000 | [diff] [blame] | 513 | locations->SetInAt(call->GetSpecialInputIndex(), Location::RequiresRegister()); |
Vladimir Marko | dc151b2 | 2015-10-15 18:02:30 +0100 | [diff] [blame] | 514 | break; |
| 515 | default: |
| 516 | locations->AddTemp(visitor->GetMethodLocation()); |
| 517 | break; |
Nicolas Geoffray | 94015b9 | 2015-06-04 18:21:04 +0100 | [diff] [blame] | 518 | } |
Orion Hodson | cd260eb | 2018-06-06 09:04:17 +0100 | [diff] [blame] | 519 | } else if (!invoke->IsInvokePolymorphic()) { |
Nicolas Geoffray | 94015b9 | 2015-06-04 18:21:04 +0100 | [diff] [blame] | 520 | locations->AddTemp(visitor->GetMethodLocation()); |
| 521 | } |
Nicolas Geoffray | fd88f16 | 2015-06-03 11:23:52 +0100 | [diff] [blame] | 522 | } |
| 523 | |
Vladimir Marko | e7197bf | 2017-06-02 17:00:23 +0100 | [diff] [blame] | 524 | void CodeGenerator::GenerateInvokeStaticOrDirectRuntimeCall( |
| 525 | HInvokeStaticOrDirect* invoke, Location temp, SlowPathCode* slow_path) { |
| 526 | MoveConstant(temp, invoke->GetDexMethodIndex()); |
| 527 | |
| 528 | // The access check is unnecessary but we do not want to introduce |
| 529 | // extra entrypoints for the codegens that do not support some |
| 530 | // invoke type and fall back to the runtime call. |
| 531 | |
| 532 | // Initialize to anything to silent compiler warnings. |
| 533 | QuickEntrypointEnum entrypoint = kQuickInvokeStaticTrampolineWithAccessCheck; |
| 534 | switch (invoke->GetInvokeType()) { |
| 535 | case kStatic: |
| 536 | entrypoint = kQuickInvokeStaticTrampolineWithAccessCheck; |
| 537 | break; |
| 538 | case kDirect: |
| 539 | entrypoint = kQuickInvokeDirectTrampolineWithAccessCheck; |
| 540 | break; |
| 541 | case kSuper: |
| 542 | entrypoint = kQuickInvokeSuperTrampolineWithAccessCheck; |
| 543 | break; |
| 544 | case kVirtual: |
| 545 | case kInterface: |
Orion Hodson | 43f0cdb | 2017-10-10 14:47:32 +0100 | [diff] [blame] | 546 | case kPolymorphic: |
Orion Hodson | 4c8e12e | 2018-05-18 08:33:20 +0100 | [diff] [blame] | 547 | case kCustom: |
Vladimir Marko | e7197bf | 2017-06-02 17:00:23 +0100 | [diff] [blame] | 548 | LOG(FATAL) << "Unexpected invoke type: " << invoke->GetInvokeType(); |
| 549 | UNREACHABLE(); |
| 550 | } |
| 551 | |
| 552 | InvokeRuntime(entrypoint, invoke, invoke->GetDexPc(), slow_path); |
| 553 | } |
Calin Juravle | 175dc73 | 2015-08-25 15:42:32 +0100 | [diff] [blame] | 554 | void CodeGenerator::GenerateInvokeUnresolvedRuntimeCall(HInvokeUnresolved* invoke) { |
| 555 | MoveConstant(invoke->GetLocations()->GetTemp(0), invoke->GetDexMethodIndex()); |
| 556 | |
| 557 | // Initialize to anything to silent compiler warnings. |
| 558 | QuickEntrypointEnum entrypoint = kQuickInvokeStaticTrampolineWithAccessCheck; |
Nicolas Geoffray | 5e4e11e | 2016-09-22 13:17:41 +0100 | [diff] [blame] | 559 | switch (invoke->GetInvokeType()) { |
Calin Juravle | 175dc73 | 2015-08-25 15:42:32 +0100 | [diff] [blame] | 560 | case kStatic: |
| 561 | entrypoint = kQuickInvokeStaticTrampolineWithAccessCheck; |
| 562 | break; |
| 563 | case kDirect: |
| 564 | entrypoint = kQuickInvokeDirectTrampolineWithAccessCheck; |
| 565 | break; |
| 566 | case kVirtual: |
| 567 | entrypoint = kQuickInvokeVirtualTrampolineWithAccessCheck; |
| 568 | break; |
| 569 | case kSuper: |
| 570 | entrypoint = kQuickInvokeSuperTrampolineWithAccessCheck; |
| 571 | break; |
| 572 | case kInterface: |
| 573 | entrypoint = kQuickInvokeInterfaceTrampolineWithAccessCheck; |
| 574 | break; |
Orion Hodson | 43f0cdb | 2017-10-10 14:47:32 +0100 | [diff] [blame] | 575 | case kPolymorphic: |
Orion Hodson | 4c8e12e | 2018-05-18 08:33:20 +0100 | [diff] [blame] | 576 | case kCustom: |
Orion Hodson | 43f0cdb | 2017-10-10 14:47:32 +0100 | [diff] [blame] | 577 | LOG(FATAL) << "Unexpected invoke type: " << invoke->GetInvokeType(); |
| 578 | UNREACHABLE(); |
Calin Juravle | 175dc73 | 2015-08-25 15:42:32 +0100 | [diff] [blame] | 579 | } |
| 580 | InvokeRuntime(entrypoint, invoke, invoke->GetDexPc(), nullptr); |
| 581 | } |
| 582 | |
Orion Hodson | ac14139 | 2017-01-13 11:53:47 +0000 | [diff] [blame] | 583 | void CodeGenerator::GenerateInvokePolymorphicCall(HInvokePolymorphic* invoke) { |
Orion Hodson | cd260eb | 2018-06-06 09:04:17 +0100 | [diff] [blame] | 584 | // invoke-polymorphic does not use a temporary to convey any additional information (e.g. a |
| 585 | // method index) since it requires multiple info from the instruction (registers A, B, H). Not |
| 586 | // using the reservation has no effect on the registers used in the runtime call. |
Orion Hodson | ac14139 | 2017-01-13 11:53:47 +0000 | [diff] [blame] | 587 | QuickEntrypointEnum entrypoint = kQuickInvokePolymorphic; |
| 588 | InvokeRuntime(entrypoint, invoke, invoke->GetDexPc(), nullptr); |
| 589 | } |
| 590 | |
Orion Hodson | 4c8e12e | 2018-05-18 08:33:20 +0100 | [diff] [blame] | 591 | void CodeGenerator::GenerateInvokeCustomCall(HInvokeCustom* invoke) { |
| 592 | MoveConstant(invoke->GetLocations()->GetTemp(0), invoke->GetCallSiteIndex()); |
| 593 | QuickEntrypointEnum entrypoint = kQuickInvokeCustom; |
| 594 | InvokeRuntime(entrypoint, invoke, invoke->GetDexPc(), nullptr); |
| 595 | } |
| 596 | |
Calin Juravle | e460d1d | 2015-09-29 04:52:17 +0100 | [diff] [blame] | 597 | void CodeGenerator::CreateUnresolvedFieldLocationSummary( |
| 598 | HInstruction* field_access, |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 599 | DataType::Type field_type, |
Calin Juravle | e460d1d | 2015-09-29 04:52:17 +0100 | [diff] [blame] | 600 | const FieldAccessCallingConvention& calling_convention) { |
| 601 | bool is_instance = field_access->IsUnresolvedInstanceFieldGet() |
| 602 | || field_access->IsUnresolvedInstanceFieldSet(); |
| 603 | bool is_get = field_access->IsUnresolvedInstanceFieldGet() |
| 604 | || field_access->IsUnresolvedStaticFieldGet(); |
| 605 | |
Vladimir Marko | ca6fff8 | 2017-10-03 14:49:14 +0100 | [diff] [blame] | 606 | ArenaAllocator* allocator = field_access->GetBlock()->GetGraph()->GetAllocator(); |
Calin Juravle | e460d1d | 2015-09-29 04:52:17 +0100 | [diff] [blame] | 607 | LocationSummary* locations = |
Serban Constantinescu | 54ff482 | 2016-07-07 18:03:19 +0100 | [diff] [blame] | 608 | new (allocator) LocationSummary(field_access, LocationSummary::kCallOnMainOnly); |
Calin Juravle | e460d1d | 2015-09-29 04:52:17 +0100 | [diff] [blame] | 609 | |
| 610 | locations->AddTemp(calling_convention.GetFieldIndexLocation()); |
| 611 | |
| 612 | if (is_instance) { |
| 613 | // Add the `this` object for instance field accesses. |
| 614 | locations->SetInAt(0, calling_convention.GetObjectLocation()); |
| 615 | } |
| 616 | |
| 617 | // Note that pSetXXStatic/pGetXXStatic always takes/returns an int or int64 |
| 618 | // regardless of the the type. Because of that we forced to special case |
| 619 | // the access to floating point values. |
| 620 | if (is_get) { |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 621 | if (DataType::IsFloatingPointType(field_type)) { |
Calin Juravle | e460d1d | 2015-09-29 04:52:17 +0100 | [diff] [blame] | 622 | // The return value will be stored in regular registers while register |
| 623 | // allocator expects it in a floating point register. |
| 624 | // Note We don't need to request additional temps because the return |
| 625 | // register(s) are already blocked due the call and they may overlap with |
| 626 | // the input or field index. |
| 627 | // The transfer between the two will be done at codegen level. |
| 628 | locations->SetOut(calling_convention.GetFpuLocation(field_type)); |
| 629 | } else { |
| 630 | locations->SetOut(calling_convention.GetReturnLocation(field_type)); |
| 631 | } |
| 632 | } else { |
| 633 | size_t set_index = is_instance ? 1 : 0; |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 634 | if (DataType::IsFloatingPointType(field_type)) { |
Calin Juravle | e460d1d | 2015-09-29 04:52:17 +0100 | [diff] [blame] | 635 | // The set value comes from a float location while the calling convention |
| 636 | // expects it in a regular register location. Allocate a temp for it and |
| 637 | // make the transfer at codegen. |
| 638 | AddLocationAsTemp(calling_convention.GetSetValueLocation(field_type, is_instance), locations); |
| 639 | locations->SetInAt(set_index, calling_convention.GetFpuLocation(field_type)); |
| 640 | } else { |
| 641 | locations->SetInAt(set_index, |
| 642 | calling_convention.GetSetValueLocation(field_type, is_instance)); |
| 643 | } |
| 644 | } |
| 645 | } |
| 646 | |
| 647 | void CodeGenerator::GenerateUnresolvedFieldAccess( |
| 648 | HInstruction* field_access, |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 649 | DataType::Type field_type, |
Calin Juravle | e460d1d | 2015-09-29 04:52:17 +0100 | [diff] [blame] | 650 | uint32_t field_index, |
| 651 | uint32_t dex_pc, |
| 652 | const FieldAccessCallingConvention& calling_convention) { |
| 653 | LocationSummary* locations = field_access->GetLocations(); |
| 654 | |
| 655 | MoveConstant(locations->GetTemp(0), field_index); |
| 656 | |
| 657 | bool is_instance = field_access->IsUnresolvedInstanceFieldGet() |
| 658 | || field_access->IsUnresolvedInstanceFieldSet(); |
| 659 | bool is_get = field_access->IsUnresolvedInstanceFieldGet() |
| 660 | || field_access->IsUnresolvedStaticFieldGet(); |
| 661 | |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 662 | if (!is_get && DataType::IsFloatingPointType(field_type)) { |
Calin Juravle | e460d1d | 2015-09-29 04:52:17 +0100 | [diff] [blame] | 663 | // Copy the float value to be set into the calling convention register. |
| 664 | // Note that using directly the temp location is problematic as we don't |
| 665 | // support temp register pairs. To avoid boilerplate conversion code, use |
| 666 | // the location from the calling convention. |
| 667 | MoveLocation(calling_convention.GetSetValueLocation(field_type, is_instance), |
| 668 | locations->InAt(is_instance ? 1 : 0), |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 669 | (DataType::Is64BitType(field_type) ? DataType::Type::kInt64 |
| 670 | : DataType::Type::kInt32)); |
Calin Juravle | e460d1d | 2015-09-29 04:52:17 +0100 | [diff] [blame] | 671 | } |
| 672 | |
| 673 | QuickEntrypointEnum entrypoint = kQuickSet8Static; // Initialize to anything to avoid warnings. |
| 674 | switch (field_type) { |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 675 | case DataType::Type::kBool: |
Calin Juravle | e460d1d | 2015-09-29 04:52:17 +0100 | [diff] [blame] | 676 | entrypoint = is_instance |
| 677 | ? (is_get ? kQuickGetBooleanInstance : kQuickSet8Instance) |
| 678 | : (is_get ? kQuickGetBooleanStatic : kQuickSet8Static); |
| 679 | break; |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 680 | case DataType::Type::kInt8: |
Calin Juravle | e460d1d | 2015-09-29 04:52:17 +0100 | [diff] [blame] | 681 | entrypoint = is_instance |
| 682 | ? (is_get ? kQuickGetByteInstance : kQuickSet8Instance) |
| 683 | : (is_get ? kQuickGetByteStatic : kQuickSet8Static); |
| 684 | break; |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 685 | case DataType::Type::kInt16: |
Calin Juravle | e460d1d | 2015-09-29 04:52:17 +0100 | [diff] [blame] | 686 | entrypoint = is_instance |
| 687 | ? (is_get ? kQuickGetShortInstance : kQuickSet16Instance) |
| 688 | : (is_get ? kQuickGetShortStatic : kQuickSet16Static); |
| 689 | break; |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 690 | case DataType::Type::kUint16: |
Calin Juravle | e460d1d | 2015-09-29 04:52:17 +0100 | [diff] [blame] | 691 | entrypoint = is_instance |
| 692 | ? (is_get ? kQuickGetCharInstance : kQuickSet16Instance) |
| 693 | : (is_get ? kQuickGetCharStatic : kQuickSet16Static); |
| 694 | break; |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 695 | case DataType::Type::kInt32: |
| 696 | case DataType::Type::kFloat32: |
Calin Juravle | e460d1d | 2015-09-29 04:52:17 +0100 | [diff] [blame] | 697 | entrypoint = is_instance |
| 698 | ? (is_get ? kQuickGet32Instance : kQuickSet32Instance) |
| 699 | : (is_get ? kQuickGet32Static : kQuickSet32Static); |
| 700 | break; |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 701 | case DataType::Type::kReference: |
Calin Juravle | e460d1d | 2015-09-29 04:52:17 +0100 | [diff] [blame] | 702 | entrypoint = is_instance |
| 703 | ? (is_get ? kQuickGetObjInstance : kQuickSetObjInstance) |
| 704 | : (is_get ? kQuickGetObjStatic : kQuickSetObjStatic); |
| 705 | break; |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 706 | case DataType::Type::kInt64: |
| 707 | case DataType::Type::kFloat64: |
Calin Juravle | e460d1d | 2015-09-29 04:52:17 +0100 | [diff] [blame] | 708 | entrypoint = is_instance |
| 709 | ? (is_get ? kQuickGet64Instance : kQuickSet64Instance) |
| 710 | : (is_get ? kQuickGet64Static : kQuickSet64Static); |
| 711 | break; |
| 712 | default: |
| 713 | LOG(FATAL) << "Invalid type " << field_type; |
| 714 | } |
| 715 | InvokeRuntime(entrypoint, field_access, dex_pc, nullptr); |
| 716 | |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 717 | if (is_get && DataType::IsFloatingPointType(field_type)) { |
Calin Juravle | e460d1d | 2015-09-29 04:52:17 +0100 | [diff] [blame] | 718 | MoveLocation(locations->Out(), calling_convention.GetReturnLocation(field_type), field_type); |
| 719 | } |
| 720 | } |
| 721 | |
Vladimir Marko | 4155998 | 2017-01-06 14:04:23 +0000 | [diff] [blame] | 722 | void CodeGenerator::CreateLoadClassRuntimeCallLocationSummary(HLoadClass* cls, |
| 723 | Location runtime_type_index_location, |
| 724 | Location runtime_return_location) { |
Vladimir Marko | 847e6ce | 2017-06-02 13:55:07 +0100 | [diff] [blame] | 725 | DCHECK_EQ(cls->GetLoadKind(), HLoadClass::LoadKind::kRuntimeCall); |
Vladimir Marko | 4155998 | 2017-01-06 14:04:23 +0000 | [diff] [blame] | 726 | DCHECK_EQ(cls->InputCount(), 1u); |
Vladimir Marko | ca6fff8 | 2017-10-03 14:49:14 +0100 | [diff] [blame] | 727 | LocationSummary* locations = new (cls->GetBlock()->GetGraph()->GetAllocator()) LocationSummary( |
Vladimir Marko | 4155998 | 2017-01-06 14:04:23 +0000 | [diff] [blame] | 728 | cls, LocationSummary::kCallOnMainOnly); |
| 729 | locations->SetInAt(0, Location::NoLocation()); |
| 730 | locations->AddTemp(runtime_type_index_location); |
| 731 | locations->SetOut(runtime_return_location); |
Calin Juravle | 98893e1 | 2015-10-02 21:05:03 +0100 | [diff] [blame] | 732 | } |
| 733 | |
Vladimir Marko | 4155998 | 2017-01-06 14:04:23 +0000 | [diff] [blame] | 734 | void CodeGenerator::GenerateLoadClassRuntimeCall(HLoadClass* cls) { |
Vladimir Marko | 847e6ce | 2017-06-02 13:55:07 +0100 | [diff] [blame] | 735 | DCHECK_EQ(cls->GetLoadKind(), HLoadClass::LoadKind::kRuntimeCall); |
Vladimir Marko | 4155998 | 2017-01-06 14:04:23 +0000 | [diff] [blame] | 736 | LocationSummary* locations = cls->GetLocations(); |
| 737 | MoveConstant(locations->GetTemp(0), cls->GetTypeIndex().index_); |
| 738 | if (cls->NeedsAccessCheck()) { |
| 739 | CheckEntrypointTypes<kQuickInitializeTypeAndVerifyAccess, void*, uint32_t>(); |
| 740 | InvokeRuntime(kQuickInitializeTypeAndVerifyAccess, cls, cls->GetDexPc()); |
| 741 | } else if (cls->MustGenerateClinitCheck()) { |
| 742 | CheckEntrypointTypes<kQuickInitializeStaticStorage, void*, uint32_t>(); |
| 743 | InvokeRuntime(kQuickInitializeStaticStorage, cls, cls->GetDexPc()); |
| 744 | } else { |
| 745 | CheckEntrypointTypes<kQuickInitializeType, void*, uint32_t>(); |
| 746 | InvokeRuntime(kQuickInitializeType, cls, cls->GetDexPc()); |
| 747 | } |
| 748 | } |
Calin Juravle | 98893e1 | 2015-10-02 21:05:03 +0100 | [diff] [blame] | 749 | |
Orion Hodson | dbaa5c7 | 2018-05-10 08:22:46 +0100 | [diff] [blame] | 750 | void CodeGenerator::CreateLoadMethodHandleRuntimeCallLocationSummary( |
| 751 | HLoadMethodHandle* method_handle, |
| 752 | Location runtime_proto_index_location, |
| 753 | Location runtime_return_location) { |
| 754 | DCHECK_EQ(method_handle->InputCount(), 1u); |
| 755 | LocationSummary* locations = |
| 756 | new (method_handle->GetBlock()->GetGraph()->GetAllocator()) LocationSummary( |
| 757 | method_handle, LocationSummary::kCallOnMainOnly); |
| 758 | locations->SetInAt(0, Location::NoLocation()); |
| 759 | locations->AddTemp(runtime_proto_index_location); |
| 760 | locations->SetOut(runtime_return_location); |
| 761 | } |
| 762 | |
| 763 | void CodeGenerator::GenerateLoadMethodHandleRuntimeCall(HLoadMethodHandle* method_handle) { |
| 764 | LocationSummary* locations = method_handle->GetLocations(); |
| 765 | MoveConstant(locations->GetTemp(0), method_handle->GetMethodHandleIndex()); |
| 766 | CheckEntrypointTypes<kQuickResolveMethodHandle, void*, uint32_t>(); |
| 767 | InvokeRuntime(kQuickResolveMethodHandle, method_handle, method_handle->GetDexPc()); |
| 768 | } |
| 769 | |
Orion Hodson | 18259d7 | 2018-04-12 11:18:23 +0100 | [diff] [blame] | 770 | void CodeGenerator::CreateLoadMethodTypeRuntimeCallLocationSummary( |
| 771 | HLoadMethodType* method_type, |
| 772 | Location runtime_proto_index_location, |
| 773 | Location runtime_return_location) { |
| 774 | DCHECK_EQ(method_type->InputCount(), 1u); |
| 775 | LocationSummary* locations = |
| 776 | new (method_type->GetBlock()->GetGraph()->GetAllocator()) LocationSummary( |
| 777 | method_type, LocationSummary::kCallOnMainOnly); |
| 778 | locations->SetInAt(0, Location::NoLocation()); |
| 779 | locations->AddTemp(runtime_proto_index_location); |
| 780 | locations->SetOut(runtime_return_location); |
| 781 | } |
| 782 | |
| 783 | void CodeGenerator::GenerateLoadMethodTypeRuntimeCall(HLoadMethodType* method_type) { |
| 784 | LocationSummary* locations = method_type->GetLocations(); |
Orion Hodson | 06d10a7 | 2018-05-14 08:53:38 +0100 | [diff] [blame] | 785 | MoveConstant(locations->GetTemp(0), method_type->GetProtoIndex().index_); |
Orion Hodson | 18259d7 | 2018-04-12 11:18:23 +0100 | [diff] [blame] | 786 | CheckEntrypointTypes<kQuickResolveMethodType, void*, uint32_t>(); |
| 787 | InvokeRuntime(kQuickResolveMethodType, method_type, method_type->GetDexPc()); |
| 788 | } |
| 789 | |
Vladimir Marko | e47f60c | 2018-02-21 13:43:28 +0000 | [diff] [blame] | 790 | static uint32_t GetBootImageOffsetImpl(const void* object, ImageHeader::ImageSections section) { |
| 791 | Runtime* runtime = Runtime::Current(); |
| 792 | DCHECK(runtime->IsAotCompiler()); |
| 793 | const std::vector<gc::space::ImageSpace*>& boot_image_spaces = |
| 794 | runtime->GetHeap()->GetBootImageSpaces(); |
| 795 | // Check that the `object` is in the expected section of one of the boot image files. |
| 796 | DCHECK(std::any_of(boot_image_spaces.begin(), |
| 797 | boot_image_spaces.end(), |
| 798 | [object, section](gc::space::ImageSpace* space) { |
| 799 | uintptr_t begin = reinterpret_cast<uintptr_t>(space->Begin()); |
| 800 | uintptr_t offset = reinterpret_cast<uintptr_t>(object) - begin; |
| 801 | return space->GetImageHeader().GetImageSection(section).Contains(offset); |
| 802 | })); |
| 803 | uintptr_t begin = reinterpret_cast<uintptr_t>(boot_image_spaces.front()->Begin()); |
| 804 | uintptr_t offset = reinterpret_cast<uintptr_t>(object) - begin; |
| 805 | return dchecked_integral_cast<uint32_t>(offset); |
| 806 | } |
| 807 | |
| 808 | // NO_THREAD_SAFETY_ANALYSIS: Avoid taking the mutator lock, boot image classes are non-moveable. |
| 809 | uint32_t CodeGenerator::GetBootImageOffset(HLoadClass* load_class) NO_THREAD_SAFETY_ANALYSIS { |
| 810 | DCHECK_EQ(load_class->GetLoadKind(), HLoadClass::LoadKind::kBootImageRelRo); |
| 811 | ObjPtr<mirror::Class> klass = load_class->GetClass().Get(); |
| 812 | DCHECK(klass != nullptr); |
| 813 | return GetBootImageOffsetImpl(klass.Ptr(), ImageHeader::kSectionObjects); |
| 814 | } |
| 815 | |
| 816 | // NO_THREAD_SAFETY_ANALYSIS: Avoid taking the mutator lock, boot image strings are non-moveable. |
| 817 | uint32_t CodeGenerator::GetBootImageOffset(HLoadString* load_string) NO_THREAD_SAFETY_ANALYSIS { |
| 818 | DCHECK_EQ(load_string->GetLoadKind(), HLoadString::LoadKind::kBootImageRelRo); |
| 819 | ObjPtr<mirror::String> string = load_string->GetString().Get(); |
| 820 | DCHECK(string != nullptr); |
| 821 | return GetBootImageOffsetImpl(string.Ptr(), ImageHeader::kSectionObjects); |
| 822 | } |
| 823 | |
| 824 | uint32_t CodeGenerator::GetBootImageOffset(HInvokeStaticOrDirect* invoke) { |
| 825 | DCHECK_EQ(invoke->GetMethodLoadKind(), HInvokeStaticOrDirect::MethodLoadKind::kBootImageRelRo); |
| 826 | ArtMethod* method = invoke->GetResolvedMethod(); |
| 827 | DCHECK(method != nullptr); |
| 828 | return GetBootImageOffsetImpl(method, ImageHeader::kSectionArtMethods); |
| 829 | } |
| 830 | |
Mark Mendell | 5f87418 | 2015-03-04 15:42:45 -0500 | [diff] [blame] | 831 | void CodeGenerator::BlockIfInRegister(Location location, bool is_out) const { |
| 832 | // The DCHECKS below check that a register is not specified twice in |
| 833 | // the summary. The out location can overlap with an input, so we need |
| 834 | // to special case it. |
| 835 | if (location.IsRegister()) { |
| 836 | DCHECK(is_out || !blocked_core_registers_[location.reg()]); |
| 837 | blocked_core_registers_[location.reg()] = true; |
| 838 | } else if (location.IsFpuRegister()) { |
| 839 | DCHECK(is_out || !blocked_fpu_registers_[location.reg()]); |
| 840 | blocked_fpu_registers_[location.reg()] = true; |
| 841 | } else if (location.IsFpuRegisterPair()) { |
| 842 | DCHECK(is_out || !blocked_fpu_registers_[location.AsFpuRegisterPairLow<int>()]); |
| 843 | blocked_fpu_registers_[location.AsFpuRegisterPairLow<int>()] = true; |
| 844 | DCHECK(is_out || !blocked_fpu_registers_[location.AsFpuRegisterPairHigh<int>()]); |
| 845 | blocked_fpu_registers_[location.AsFpuRegisterPairHigh<int>()] = true; |
| 846 | } else if (location.IsRegisterPair()) { |
| 847 | DCHECK(is_out || !blocked_core_registers_[location.AsRegisterPairLow<int>()]); |
| 848 | blocked_core_registers_[location.AsRegisterPairLow<int>()] = true; |
| 849 | DCHECK(is_out || !blocked_core_registers_[location.AsRegisterPairHigh<int>()]); |
| 850 | blocked_core_registers_[location.AsRegisterPairHigh<int>()] = true; |
| 851 | } |
| 852 | } |
| 853 | |
Nicolas Geoffray | c0572a4 | 2015-02-06 14:35:25 +0000 | [diff] [blame] | 854 | void CodeGenerator::AllocateLocations(HInstruction* instruction) { |
Vladimir Marko | ec32f64 | 2017-06-02 10:51:55 +0100 | [diff] [blame] | 855 | for (HEnvironment* env = instruction->GetEnvironment(); env != nullptr; env = env->GetParent()) { |
| 856 | env->AllocateLocations(); |
| 857 | } |
Nicolas Geoffray | c0572a4 | 2015-02-06 14:35:25 +0000 | [diff] [blame] | 858 | instruction->Accept(GetLocationBuilder()); |
Alexandre Rames | 88c13cd | 2015-04-14 17:35:39 +0100 | [diff] [blame] | 859 | DCHECK(CheckTypeConsistency(instruction)); |
Nicolas Geoffray | c0572a4 | 2015-02-06 14:35:25 +0000 | [diff] [blame] | 860 | LocationSummary* locations = instruction->GetLocations(); |
| 861 | if (!instruction->IsSuspendCheckEntry()) { |
Aart Bik | d1c4045 | 2016-03-02 16:06:13 -0800 | [diff] [blame] | 862 | if (locations != nullptr) { |
| 863 | if (locations->CanCall()) { |
| 864 | MarkNotLeaf(); |
| 865 | } else if (locations->Intrinsified() && |
| 866 | instruction->IsInvokeStaticOrDirect() && |
| 867 | !instruction->AsInvokeStaticOrDirect()->HasCurrentMethodInput()) { |
| 868 | // A static method call that has been fully intrinsified, and cannot call on the slow |
| 869 | // path or refer to the current method directly, no longer needs current method. |
| 870 | return; |
| 871 | } |
Nicolas Geoffray | c0572a4 | 2015-02-06 14:35:25 +0000 | [diff] [blame] | 872 | } |
| 873 | if (instruction->NeedsCurrentMethod()) { |
| 874 | SetRequiresCurrentMethod(); |
| 875 | } |
| 876 | } |
| 877 | } |
| 878 | |
Vladimir Marko | d58b837 | 2016-04-12 18:51:43 +0100 | [diff] [blame] | 879 | std::unique_ptr<CodeGenerator> CodeGenerator::Create(HGraph* graph, |
| 880 | InstructionSet instruction_set, |
| 881 | const InstructionSetFeatures& isa_features, |
| 882 | const CompilerOptions& compiler_options, |
| 883 | OptimizingCompilerStats* stats) { |
Vladimir Marko | e764d2e | 2017-10-05 14:35:55 +0100 | [diff] [blame] | 884 | ArenaAllocator* allocator = graph->GetAllocator(); |
Nicolas Geoffray | d4dd255 | 2014-02-28 10:23:58 +0000 | [diff] [blame] | 885 | switch (instruction_set) { |
Alex Light | 50fa993 | 2015-08-10 15:30:07 -0700 | [diff] [blame] | 886 | #ifdef ART_ENABLE_CODEGEN_arm |
Vladimir Marko | 33bff25 | 2017-11-01 14:35:42 +0000 | [diff] [blame] | 887 | case InstructionSet::kArm: |
| 888 | case InstructionSet::kThumb2: { |
Roland Levillain | 9983e30 | 2017-07-14 14:34:22 +0100 | [diff] [blame] | 889 | return std::unique_ptr<CodeGenerator>( |
Vladimir Marko | e764d2e | 2017-10-05 14:35:55 +0100 | [diff] [blame] | 890 | new (allocator) arm::CodeGeneratorARMVIXL( |
| 891 | graph, *isa_features.AsArmInstructionSetFeatures(), compiler_options, stats)); |
Nicolas Geoffray | d4dd255 | 2014-02-28 10:23:58 +0000 | [diff] [blame] | 892 | } |
Alex Light | 50fa993 | 2015-08-10 15:30:07 -0700 | [diff] [blame] | 893 | #endif |
| 894 | #ifdef ART_ENABLE_CODEGEN_arm64 |
Vladimir Marko | 33bff25 | 2017-11-01 14:35:42 +0000 | [diff] [blame] | 895 | case InstructionSet::kArm64: { |
Vladimir Marko | d58b837 | 2016-04-12 18:51:43 +0100 | [diff] [blame] | 896 | return std::unique_ptr<CodeGenerator>( |
Vladimir Marko | e764d2e | 2017-10-05 14:35:55 +0100 | [diff] [blame] | 897 | new (allocator) arm64::CodeGeneratorARM64( |
| 898 | graph, *isa_features.AsArm64InstructionSetFeatures(), compiler_options, stats)); |
Alexandre Rames | 5319def | 2014-10-23 10:03:10 +0100 | [diff] [blame] | 899 | } |
Alex Light | 50fa993 | 2015-08-10 15:30:07 -0700 | [diff] [blame] | 900 | #endif |
| 901 | #ifdef ART_ENABLE_CODEGEN_mips |
Vladimir Marko | 33bff25 | 2017-11-01 14:35:42 +0000 | [diff] [blame] | 902 | case InstructionSet::kMips: { |
Vladimir Marko | d58b837 | 2016-04-12 18:51:43 +0100 | [diff] [blame] | 903 | return std::unique_ptr<CodeGenerator>( |
Vladimir Marko | e764d2e | 2017-10-05 14:35:55 +0100 | [diff] [blame] | 904 | new (allocator) mips::CodeGeneratorMIPS( |
| 905 | graph, *isa_features.AsMipsInstructionSetFeatures(), compiler_options, stats)); |
Goran Jakovljevic | f652cec | 2015-08-25 16:11:42 +0200 | [diff] [blame] | 906 | } |
Alex Light | 50fa993 | 2015-08-10 15:30:07 -0700 | [diff] [blame] | 907 | #endif |
| 908 | #ifdef ART_ENABLE_CODEGEN_mips64 |
Vladimir Marko | 33bff25 | 2017-11-01 14:35:42 +0000 | [diff] [blame] | 909 | case InstructionSet::kMips64: { |
Vladimir Marko | d58b837 | 2016-04-12 18:51:43 +0100 | [diff] [blame] | 910 | return std::unique_ptr<CodeGenerator>( |
Vladimir Marko | e764d2e | 2017-10-05 14:35:55 +0100 | [diff] [blame] | 911 | new (allocator) mips64::CodeGeneratorMIPS64( |
| 912 | graph, *isa_features.AsMips64InstructionSetFeatures(), compiler_options, stats)); |
Alexey Frunze | 4dda337 | 2015-06-01 18:31:49 -0700 | [diff] [blame] | 913 | } |
Alex Light | 50fa993 | 2015-08-10 15:30:07 -0700 | [diff] [blame] | 914 | #endif |
| 915 | #ifdef ART_ENABLE_CODEGEN_x86 |
Vladimir Marko | 33bff25 | 2017-11-01 14:35:42 +0000 | [diff] [blame] | 916 | case InstructionSet::kX86: { |
Vladimir Marko | d58b837 | 2016-04-12 18:51:43 +0100 | [diff] [blame] | 917 | return std::unique_ptr<CodeGenerator>( |
Vladimir Marko | e764d2e | 2017-10-05 14:35:55 +0100 | [diff] [blame] | 918 | new (allocator) x86::CodeGeneratorX86( |
| 919 | graph, *isa_features.AsX86InstructionSetFeatures(), compiler_options, stats)); |
Nicolas Geoffray | d4dd255 | 2014-02-28 10:23:58 +0000 | [diff] [blame] | 920 | } |
Alex Light | 50fa993 | 2015-08-10 15:30:07 -0700 | [diff] [blame] | 921 | #endif |
| 922 | #ifdef ART_ENABLE_CODEGEN_x86_64 |
Vladimir Marko | 33bff25 | 2017-11-01 14:35:42 +0000 | [diff] [blame] | 923 | case InstructionSet::kX86_64: { |
Vladimir Marko | d58b837 | 2016-04-12 18:51:43 +0100 | [diff] [blame] | 924 | return std::unique_ptr<CodeGenerator>( |
Vladimir Marko | e764d2e | 2017-10-05 14:35:55 +0100 | [diff] [blame] | 925 | new (allocator) x86_64::CodeGeneratorX86_64( |
| 926 | graph, *isa_features.AsX86_64InstructionSetFeatures(), compiler_options, stats)); |
Dmitry Petrochenko | 6a58cb1 | 2014-04-02 17:27:59 +0700 | [diff] [blame] | 927 | } |
Alex Light | 50fa993 | 2015-08-10 15:30:07 -0700 | [diff] [blame] | 928 | #endif |
Nicolas Geoffray | d4dd255 | 2014-02-28 10:23:58 +0000 | [diff] [blame] | 929 | default: |
Nicolas Geoffray | 787c307 | 2014-03-17 10:20:19 +0000 | [diff] [blame] | 930 | return nullptr; |
Nicolas Geoffray | d4dd255 | 2014-02-28 10:23:58 +0000 | [diff] [blame] | 931 | } |
| 932 | } |
| 933 | |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 934 | CodeGenerator::CodeGenerator(HGraph* graph, |
| 935 | size_t number_of_core_registers, |
| 936 | size_t number_of_fpu_registers, |
| 937 | size_t number_of_register_pairs, |
| 938 | uint32_t core_callee_save_mask, |
| 939 | uint32_t fpu_callee_save_mask, |
| 940 | const CompilerOptions& compiler_options, |
| 941 | OptimizingCompilerStats* stats) |
| 942 | : frame_size_(0), |
| 943 | core_spill_mask_(0), |
| 944 | fpu_spill_mask_(0), |
| 945 | first_register_slot_in_slow_path_(0), |
| 946 | allocated_registers_(RegisterSet::Empty()), |
| 947 | blocked_core_registers_(graph->GetAllocator()->AllocArray<bool>(number_of_core_registers, |
| 948 | kArenaAllocCodeGenerator)), |
| 949 | blocked_fpu_registers_(graph->GetAllocator()->AllocArray<bool>(number_of_fpu_registers, |
| 950 | kArenaAllocCodeGenerator)), |
| 951 | number_of_core_registers_(number_of_core_registers), |
| 952 | number_of_fpu_registers_(number_of_fpu_registers), |
| 953 | number_of_register_pairs_(number_of_register_pairs), |
| 954 | core_callee_save_mask_(core_callee_save_mask), |
| 955 | fpu_callee_save_mask_(fpu_callee_save_mask), |
| 956 | block_order_(nullptr), |
| 957 | disasm_info_(nullptr), |
| 958 | stats_(stats), |
| 959 | graph_(graph), |
| 960 | compiler_options_(compiler_options), |
| 961 | current_slow_path_(nullptr), |
| 962 | current_block_index_(0), |
| 963 | is_leaf_(true), |
| 964 | requires_current_method_(false), |
| 965 | code_generation_data_() { |
| 966 | } |
| 967 | |
| 968 | CodeGenerator::~CodeGenerator() {} |
| 969 | |
Mathieu Chartier | cbcedbf | 2017-03-12 22:24:50 -0700 | [diff] [blame] | 970 | void CodeGenerator::ComputeStackMapAndMethodInfoSize(size_t* stack_map_size, |
| 971 | size_t* method_info_size) { |
| 972 | DCHECK(stack_map_size != nullptr); |
| 973 | DCHECK(method_info_size != nullptr); |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 974 | StackMapStream* stack_map_stream = GetStackMapStream(); |
| 975 | *stack_map_size = stack_map_stream->PrepareForFillIn(); |
| 976 | *method_info_size = stack_map_stream->ComputeMethodInfoSize(); |
| 977 | } |
| 978 | |
| 979 | size_t CodeGenerator::GetNumberOfJitRoots() const { |
| 980 | DCHECK(code_generation_data_ != nullptr); |
| 981 | return code_generation_data_->GetNumberOfJitRoots(); |
Nicolas Geoffray | d28b969 | 2015-11-04 14:36:55 +0000 | [diff] [blame] | 982 | } |
| 983 | |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 984 | static void CheckCovers(uint32_t dex_pc, |
| 985 | const HGraph& graph, |
| 986 | const CodeInfo& code_info, |
| 987 | const ArenaVector<HSuspendCheck*>& loop_headers, |
| 988 | ArenaVector<size_t>* covered) { |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 989 | for (size_t i = 0; i < loop_headers.size(); ++i) { |
| 990 | if (loop_headers[i]->GetDexPc() == dex_pc) { |
| 991 | if (graph.IsCompilingOsr()) { |
David Srbecky | 052f8ca | 2018-04-26 15:42:54 +0100 | [diff] [blame] | 992 | DCHECK(code_info.GetOsrStackMapForDexPc(dex_pc).IsValid()); |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 993 | } |
| 994 | ++(*covered)[i]; |
| 995 | } |
| 996 | } |
| 997 | } |
| 998 | |
| 999 | // Debug helper to ensure loop entries in compiled code are matched by |
| 1000 | // dex branch instructions. |
| 1001 | static void CheckLoopEntriesCanBeUsedForOsr(const HGraph& graph, |
| 1002 | const CodeInfo& code_info, |
| 1003 | const DexFile::CodeItem& code_item) { |
| 1004 | if (graph.HasTryCatch()) { |
| 1005 | // One can write loops through try/catch, which we do not support for OSR anyway. |
| 1006 | return; |
| 1007 | } |
Vladimir Marko | ca6fff8 | 2017-10-03 14:49:14 +0100 | [diff] [blame] | 1008 | ArenaVector<HSuspendCheck*> loop_headers(graph.GetAllocator()->Adapter(kArenaAllocMisc)); |
Vladimir Marko | 2c45bc9 | 2016-10-25 16:54:12 +0100 | [diff] [blame] | 1009 | for (HBasicBlock* block : graph.GetReversePostOrder()) { |
| 1010 | if (block->IsLoopHeader()) { |
| 1011 | HSuspendCheck* suspend_check = block->GetLoopInformation()->GetSuspendCheck(); |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 1012 | if (!suspend_check->GetEnvironment()->IsFromInlinedInvoke()) { |
| 1013 | loop_headers.push_back(suspend_check); |
| 1014 | } |
| 1015 | } |
| 1016 | } |
Vladimir Marko | ca6fff8 | 2017-10-03 14:49:14 +0100 | [diff] [blame] | 1017 | ArenaVector<size_t> covered( |
| 1018 | loop_headers.size(), 0, graph.GetAllocator()->Adapter(kArenaAllocMisc)); |
Mathieu Chartier | 698ebbc | 2018-01-05 11:00:42 -0800 | [diff] [blame] | 1019 | for (const DexInstructionPcPair& pair : CodeItemInstructionAccessor(graph.GetDexFile(), |
Mathieu Chartier | 73f21d4 | 2018-01-02 14:26:50 -0800 | [diff] [blame] | 1020 | &code_item)) { |
Mathieu Chartier | 2b2bef2 | 2017-10-26 17:10:19 -0700 | [diff] [blame] | 1021 | const uint32_t dex_pc = pair.DexPc(); |
| 1022 | const Instruction& instruction = pair.Inst(); |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 1023 | if (instruction.IsBranch()) { |
| 1024 | uint32_t target = dex_pc + instruction.GetTargetOffset(); |
| 1025 | CheckCovers(target, graph, code_info, loop_headers, &covered); |
| 1026 | } else if (instruction.IsSwitch()) { |
David Brazdil | 86ea7ee | 2016-02-16 09:26:07 +0000 | [diff] [blame] | 1027 | DexSwitchTable table(instruction, dex_pc); |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 1028 | uint16_t num_entries = table.GetNumEntries(); |
| 1029 | size_t offset = table.GetFirstValueIndex(); |
| 1030 | |
| 1031 | // Use a larger loop counter type to avoid overflow issues. |
| 1032 | for (size_t i = 0; i < num_entries; ++i) { |
| 1033 | // The target of the case. |
| 1034 | uint32_t target = dex_pc + table.GetEntryAt(i + offset); |
| 1035 | CheckCovers(target, graph, code_info, loop_headers, &covered); |
| 1036 | } |
| 1037 | } |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 1038 | } |
| 1039 | |
| 1040 | for (size_t i = 0; i < covered.size(); ++i) { |
| 1041 | DCHECK_NE(covered[i], 0u) << "Loop in compiled code has no dex branch equivalent"; |
| 1042 | } |
| 1043 | } |
| 1044 | |
Mathieu Chartier | cbcedbf | 2017-03-12 22:24:50 -0700 | [diff] [blame] | 1045 | void CodeGenerator::BuildStackMaps(MemoryRegion stack_map_region, |
| 1046 | MemoryRegion method_info_region, |
Vladimir Marko | 92f7f3c | 2017-10-31 11:38:30 +0000 | [diff] [blame] | 1047 | const DexFile::CodeItem* code_item_for_osr_check) { |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 1048 | StackMapStream* stack_map_stream = GetStackMapStream(); |
| 1049 | stack_map_stream->FillInCodeInfo(stack_map_region); |
| 1050 | stack_map_stream->FillInMethodInfo(method_info_region); |
Vladimir Marko | 92f7f3c | 2017-10-31 11:38:30 +0000 | [diff] [blame] | 1051 | if (kIsDebugBuild && code_item_for_osr_check != nullptr) { |
| 1052 | CheckLoopEntriesCanBeUsedForOsr(*graph_, CodeInfo(stack_map_region), *code_item_for_osr_check); |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 1053 | } |
Nicolas Geoffray | 3946844 | 2014-09-02 15:17:15 +0100 | [diff] [blame] | 1054 | } |
| 1055 | |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1056 | void CodeGenerator::RecordPcInfo(HInstruction* instruction, |
| 1057 | uint32_t dex_pc, |
David Srbecky | 50fac06 | 2018-06-13 18:55:35 +0100 | [diff] [blame] | 1058 | SlowPathCode* slow_path, |
| 1059 | bool native_debug_info) { |
Calin Juravle | d2ec87d | 2014-12-08 14:24:46 +0000 | [diff] [blame] | 1060 | if (instruction != nullptr) { |
Roland Levillain | 1693a1f | 2016-03-15 14:57:31 +0000 | [diff] [blame] | 1061 | // The code generated for some type conversions |
Alexey Frunze | 4dda337 | 2015-06-01 18:31:49 -0700 | [diff] [blame] | 1062 | // may call the runtime, thus normally requiring a subsequent |
| 1063 | // call to this method. However, the method verifier does not |
| 1064 | // produce PC information for certain instructions, which are |
| 1065 | // considered "atomic" (they cannot join a GC). |
Roland Levillain | 624279f | 2014-12-04 11:54:28 +0000 | [diff] [blame] | 1066 | // Therefore we do not currently record PC information for such |
| 1067 | // instructions. As this may change later, we added this special |
| 1068 | // case so that code generators may nevertheless call |
| 1069 | // CodeGenerator::RecordPcInfo without triggering an error in |
| 1070 | // CodeGenerator::BuildNativeGCMap ("Missing ref for dex pc 0x") |
| 1071 | // thereafter. |
Roland Levillain | 1693a1f | 2016-03-15 14:57:31 +0000 | [diff] [blame] | 1072 | if (instruction->IsTypeConversion()) { |
Calin Juravle | d2ec87d | 2014-12-08 14:24:46 +0000 | [diff] [blame] | 1073 | return; |
| 1074 | } |
| 1075 | if (instruction->IsRem()) { |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 1076 | DataType::Type type = instruction->AsRem()->GetResultType(); |
| 1077 | if ((type == DataType::Type::kFloat32) || (type == DataType::Type::kFloat64)) { |
Calin Juravle | d2ec87d | 2014-12-08 14:24:46 +0000 | [diff] [blame] | 1078 | return; |
| 1079 | } |
| 1080 | } |
Roland Levillain | 624279f | 2014-12-04 11:54:28 +0000 | [diff] [blame] | 1081 | } |
| 1082 | |
Nicolas Geoffray | 3946844 | 2014-09-02 15:17:15 +0100 | [diff] [blame] | 1083 | // Collect PC infos for the mapping table. |
Alexey Frunze | 57eb0f5 | 2016-07-29 22:04:46 -0700 | [diff] [blame] | 1084 | uint32_t native_pc = GetAssembler()->CodePosition(); |
Nicolas Geoffray | 3946844 | 2014-09-02 15:17:15 +0100 | [diff] [blame] | 1085 | |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 1086 | StackMapStream* stack_map_stream = GetStackMapStream(); |
Nicolas Geoffray | 3946844 | 2014-09-02 15:17:15 +0100 | [diff] [blame] | 1087 | if (instruction == nullptr) { |
David Srbecky | c7098ff | 2016-02-09 14:30:11 +0000 | [diff] [blame] | 1088 | // For stack overflow checks and native-debug-info entries without dex register |
| 1089 | // mapping (i.e. start of basic block or start of slow path). |
Vladimir Marko | fec85cd | 2017-12-04 13:00:12 +0000 | [diff] [blame] | 1090 | stack_map_stream->BeginStackMapEntry(dex_pc, native_pc, 0, 0, 0, 0); |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 1091 | stack_map_stream->EndStackMapEntry(); |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1092 | return; |
| 1093 | } |
Nicolas Geoffray | 3946844 | 2014-09-02 15:17:15 +0100 | [diff] [blame] | 1094 | |
Vladimir Marko | fec85cd | 2017-12-04 13:00:12 +0000 | [diff] [blame] | 1095 | LocationSummary* locations = instruction->GetLocations(); |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1096 | uint32_t register_mask = locations->GetRegisterMask(); |
Vladimir Marko | 70e9746 | 2016-08-09 11:04:26 +0100 | [diff] [blame] | 1097 | DCHECK_EQ(register_mask & ~locations->GetLiveRegisters()->GetCoreRegisters(), 0u); |
| 1098 | if (locations->OnlyCallsOnSlowPath()) { |
| 1099 | // In case of slow path, we currently set the location of caller-save registers |
| 1100 | // to register (instead of their stack location when pushed before the slow-path |
| 1101 | // call). Therefore register_mask contains both callee-save and caller-save |
| 1102 | // registers that hold objects. We must remove the spilled caller-save from the |
| 1103 | // mask, since they will be overwritten by the callee. |
| 1104 | uint32_t spills = GetSlowPathSpills(locations, /* core_registers */ true); |
| 1105 | register_mask &= ~spills; |
Vladimir Marko | 952dbb1 | 2016-07-28 12:01:51 +0100 | [diff] [blame] | 1106 | } else { |
Vladimir Marko | 952dbb1 | 2016-07-28 12:01:51 +0100 | [diff] [blame] | 1107 | // The register mask must be a subset of callee-save registers. |
| 1108 | DCHECK_EQ(register_mask & core_callee_save_mask_, register_mask); |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1109 | } |
Vladimir Marko | fec85cd | 2017-12-04 13:00:12 +0000 | [diff] [blame] | 1110 | |
| 1111 | uint32_t outer_dex_pc = dex_pc; |
| 1112 | uint32_t outer_environment_size = 0u; |
| 1113 | uint32_t inlining_depth = 0; |
| 1114 | HEnvironment* const environment = instruction->GetEnvironment(); |
| 1115 | if (environment != nullptr) { |
| 1116 | HEnvironment* outer_environment = environment; |
| 1117 | while (outer_environment->GetParent() != nullptr) { |
| 1118 | outer_environment = outer_environment->GetParent(); |
| 1119 | ++inlining_depth; |
| 1120 | } |
| 1121 | outer_dex_pc = outer_environment->GetDexPc(); |
| 1122 | outer_environment_size = outer_environment->Size(); |
| 1123 | } |
David Srbecky | 50fac06 | 2018-06-13 18:55:35 +0100 | [diff] [blame] | 1124 | |
| 1125 | HLoopInformation* info = instruction->GetBlock()->GetLoopInformation(); |
| 1126 | bool osr = |
| 1127 | instruction->IsSuspendCheck() && |
| 1128 | (info != nullptr) && |
| 1129 | graph_->IsCompilingOsr() && |
| 1130 | (inlining_depth == 0); |
| 1131 | StackMap::Kind kind = native_debug_info |
| 1132 | ? StackMap::Kind::Debug |
| 1133 | : (osr ? StackMap::Kind::OSR : StackMap::Kind::Default); |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 1134 | stack_map_stream->BeginStackMapEntry(outer_dex_pc, |
Vladimir Marko | bd8c725 | 2015-06-12 10:06:32 +0100 | [diff] [blame] | 1135 | native_pc, |
Calin Juravle | 4f46ac5 | 2015-04-23 18:47:21 +0100 | [diff] [blame] | 1136 | register_mask, |
| 1137 | locations->GetStackMask(), |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 1138 | outer_environment_size, |
David Srbecky | 50fac06 | 2018-06-13 18:55:35 +0100 | [diff] [blame] | 1139 | inlining_depth, |
| 1140 | kind); |
Mathieu Chartier | d776ff0 | 2017-01-17 09:32:18 -0800 | [diff] [blame] | 1141 | EmitEnvironment(environment, slow_path); |
| 1142 | // Record invoke info, the common case for the trampoline is super and static invokes. Only |
| 1143 | // record these to reduce oat file size. |
| 1144 | if (kEnableDexLayoutOptimizations) { |
Vladimir Marko | fec85cd | 2017-12-04 13:00:12 +0000 | [diff] [blame] | 1145 | if (instruction->IsInvokeStaticOrDirect()) { |
| 1146 | HInvoke* const invoke = instruction->AsInvokeStaticOrDirect(); |
| 1147 | DCHECK(environment != nullptr); |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 1148 | stack_map_stream->AddInvoke(invoke->GetInvokeType(), invoke->GetDexMethodIndex()); |
Mathieu Chartier | d776ff0 | 2017-01-17 09:32:18 -0800 | [diff] [blame] | 1149 | } |
| 1150 | } |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 1151 | stack_map_stream->EndStackMapEntry(); |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 1152 | |
David Srbecky | 50fac06 | 2018-06-13 18:55:35 +0100 | [diff] [blame] | 1153 | if (osr) { |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 1154 | DCHECK_EQ(info->GetSuspendCheck(), instruction); |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 1155 | DCHECK(info->IsIrreducible()); |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 1156 | if (kIsDebugBuild) { |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 1157 | for (size_t i = 0, environment_size = environment->Size(); i < environment_size; ++i) { |
| 1158 | HInstruction* in_environment = environment->GetInstructionAt(i); |
| 1159 | if (in_environment != nullptr) { |
| 1160 | DCHECK(in_environment->IsPhi() || in_environment->IsConstant()); |
| 1161 | Location location = environment->GetLocationAt(i); |
| 1162 | DCHECK(location.IsStackSlot() || |
| 1163 | location.IsDoubleStackSlot() || |
| 1164 | location.IsConstant() || |
| 1165 | location.IsInvalid()); |
| 1166 | if (location.IsStackSlot() || location.IsDoubleStackSlot()) { |
| 1167 | DCHECK_LT(location.GetStackIndex(), static_cast<int32_t>(GetFrameSize())); |
| 1168 | } |
| 1169 | } |
| 1170 | } |
| 1171 | } |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 1172 | } |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 1173 | } |
| 1174 | |
David Srbecky | b7070a2 | 2016-01-08 18:13:53 +0000 | [diff] [blame] | 1175 | bool CodeGenerator::HasStackMapAtCurrentPc() { |
| 1176 | uint32_t pc = GetAssembler()->CodeSize(); |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 1177 | StackMapStream* stack_map_stream = GetStackMapStream(); |
| 1178 | size_t count = stack_map_stream->GetNumberOfStackMaps(); |
Andreas Gampe | 0c95c12 | 2017-02-26 14:10:28 -0800 | [diff] [blame] | 1179 | if (count == 0) { |
| 1180 | return false; |
| 1181 | } |
David Srbecky | d02b23f | 2018-05-29 23:27:22 +0100 | [diff] [blame] | 1182 | return stack_map_stream->GetStackMapNativePcOffset(count - 1) == pc; |
David Srbecky | b7070a2 | 2016-01-08 18:13:53 +0000 | [diff] [blame] | 1183 | } |
| 1184 | |
David Srbecky | d28f4a0 | 2016-03-14 17:14:24 +0000 | [diff] [blame] | 1185 | void CodeGenerator::MaybeRecordNativeDebugInfo(HInstruction* instruction, |
| 1186 | uint32_t dex_pc, |
| 1187 | SlowPathCode* slow_path) { |
David Srbecky | c7098ff | 2016-02-09 14:30:11 +0000 | [diff] [blame] | 1188 | if (GetCompilerOptions().GetNativeDebuggable() && dex_pc != kNoDexPc) { |
| 1189 | if (HasStackMapAtCurrentPc()) { |
| 1190 | // Ensure that we do not collide with the stack map of the previous instruction. |
| 1191 | GenerateNop(); |
| 1192 | } |
David Srbecky | 50fac06 | 2018-06-13 18:55:35 +0100 | [diff] [blame] | 1193 | RecordPcInfo(instruction, dex_pc, slow_path, /* native_debug_info */ true); |
David Srbecky | c7098ff | 2016-02-09 14:30:11 +0000 | [diff] [blame] | 1194 | } |
| 1195 | } |
| 1196 | |
David Brazdil | 77a48ae | 2015-09-15 12:34:04 +0000 | [diff] [blame] | 1197 | void CodeGenerator::RecordCatchBlockInfo() { |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 1198 | StackMapStream* stack_map_stream = GetStackMapStream(); |
David Brazdil | 77a48ae | 2015-09-15 12:34:04 +0000 | [diff] [blame] | 1199 | |
Vladimir Marko | fa6b93c | 2015-09-15 10:15:55 +0100 | [diff] [blame] | 1200 | for (HBasicBlock* block : *block_order_) { |
David Brazdil | 77a48ae | 2015-09-15 12:34:04 +0000 | [diff] [blame] | 1201 | if (!block->IsCatchBlock()) { |
| 1202 | continue; |
| 1203 | } |
| 1204 | |
| 1205 | uint32_t dex_pc = block->GetDexPc(); |
| 1206 | uint32_t num_vregs = graph_->GetNumberOfVRegs(); |
| 1207 | uint32_t inlining_depth = 0; // Inlining of catch blocks is not supported at the moment. |
| 1208 | uint32_t native_pc = GetAddressOf(block); |
David Brazdil | 77a48ae | 2015-09-15 12:34:04 +0000 | [diff] [blame] | 1209 | |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 1210 | stack_map_stream->BeginStackMapEntry(dex_pc, |
David Brazdil | 77a48ae | 2015-09-15 12:34:04 +0000 | [diff] [blame] | 1211 | native_pc, |
David Srbecky | 50fac06 | 2018-06-13 18:55:35 +0100 | [diff] [blame] | 1212 | /* register_mask */ 0, |
| 1213 | /* stack_mask */ nullptr, |
David Brazdil | 77a48ae | 2015-09-15 12:34:04 +0000 | [diff] [blame] | 1214 | num_vregs, |
David Srbecky | 50fac06 | 2018-06-13 18:55:35 +0100 | [diff] [blame] | 1215 | inlining_depth, |
| 1216 | StackMap::Kind::Catch); |
David Brazdil | 77a48ae | 2015-09-15 12:34:04 +0000 | [diff] [blame] | 1217 | |
| 1218 | HInstruction* current_phi = block->GetFirstPhi(); |
| 1219 | for (size_t vreg = 0; vreg < num_vregs; ++vreg) { |
David Srbecky | 50fac06 | 2018-06-13 18:55:35 +0100 | [diff] [blame] | 1220 | while (current_phi != nullptr && current_phi->AsPhi()->GetRegNumber() < vreg) { |
| 1221 | HInstruction* next_phi = current_phi->GetNext(); |
| 1222 | DCHECK(next_phi == nullptr || |
| 1223 | current_phi->AsPhi()->GetRegNumber() <= next_phi->AsPhi()->GetRegNumber()) |
| 1224 | << "Phis need to be sorted by vreg number to keep this a linear-time loop."; |
| 1225 | current_phi = next_phi; |
| 1226 | } |
David Brazdil | 77a48ae | 2015-09-15 12:34:04 +0000 | [diff] [blame] | 1227 | |
| 1228 | if (current_phi == nullptr || current_phi->AsPhi()->GetRegNumber() != vreg) { |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 1229 | stack_map_stream->AddDexRegisterEntry(DexRegisterLocation::Kind::kNone, 0); |
David Brazdil | 77a48ae | 2015-09-15 12:34:04 +0000 | [diff] [blame] | 1230 | } else { |
Vladimir Marko | bea75ff | 2017-10-11 20:39:54 +0100 | [diff] [blame] | 1231 | Location location = current_phi->GetLocations()->Out(); |
David Brazdil | 77a48ae | 2015-09-15 12:34:04 +0000 | [diff] [blame] | 1232 | switch (location.GetKind()) { |
| 1233 | case Location::kStackSlot: { |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 1234 | stack_map_stream->AddDexRegisterEntry( |
David Brazdil | 77a48ae | 2015-09-15 12:34:04 +0000 | [diff] [blame] | 1235 | DexRegisterLocation::Kind::kInStack, location.GetStackIndex()); |
| 1236 | break; |
| 1237 | } |
| 1238 | case Location::kDoubleStackSlot: { |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 1239 | stack_map_stream->AddDexRegisterEntry( |
David Brazdil | 77a48ae | 2015-09-15 12:34:04 +0000 | [diff] [blame] | 1240 | DexRegisterLocation::Kind::kInStack, location.GetStackIndex()); |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 1241 | stack_map_stream->AddDexRegisterEntry( |
David Brazdil | 77a48ae | 2015-09-15 12:34:04 +0000 | [diff] [blame] | 1242 | DexRegisterLocation::Kind::kInStack, location.GetHighStackIndex(kVRegSize)); |
| 1243 | ++vreg; |
| 1244 | DCHECK_LT(vreg, num_vregs); |
| 1245 | break; |
| 1246 | } |
| 1247 | default: { |
| 1248 | // All catch phis must be allocated to a stack slot. |
| 1249 | LOG(FATAL) << "Unexpected kind " << location.GetKind(); |
| 1250 | UNREACHABLE(); |
| 1251 | } |
| 1252 | } |
| 1253 | } |
| 1254 | } |
| 1255 | |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 1256 | stack_map_stream->EndStackMapEntry(); |
David Brazdil | 77a48ae | 2015-09-15 12:34:04 +0000 | [diff] [blame] | 1257 | } |
| 1258 | } |
| 1259 | |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 1260 | void CodeGenerator::AddSlowPath(SlowPathCode* slow_path) { |
| 1261 | DCHECK(code_generation_data_ != nullptr); |
| 1262 | code_generation_data_->AddSlowPath(slow_path); |
| 1263 | } |
| 1264 | |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 1265 | void CodeGenerator::EmitEnvironment(HEnvironment* environment, SlowPathCode* slow_path) { |
| 1266 | if (environment == nullptr) return; |
| 1267 | |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 1268 | StackMapStream* stack_map_stream = GetStackMapStream(); |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 1269 | if (environment->GetParent() != nullptr) { |
| 1270 | // We emit the parent environment first. |
| 1271 | EmitEnvironment(environment->GetParent(), slow_path); |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 1272 | stack_map_stream->BeginInlineInfoEntry(environment->GetMethod(), |
Nicolas Geoffray | b176d7c | 2015-05-20 18:48:31 +0100 | [diff] [blame] | 1273 | environment->GetDexPc(), |
Nicolas Geoffray | 5d37c15 | 2017-01-12 13:25:19 +0000 | [diff] [blame] | 1274 | environment->Size(), |
| 1275 | &graph_->GetDexFile()); |
Nicolas Geoffray | 0a23d74 | 2015-05-07 11:57:35 +0100 | [diff] [blame] | 1276 | } |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1277 | |
| 1278 | // Walk over the environment, and record the location of dex registers. |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 1279 | for (size_t i = 0, environment_size = environment->Size(); i < environment_size; ++i) { |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1280 | HInstruction* current = environment->GetInstructionAt(i); |
| 1281 | if (current == nullptr) { |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 1282 | stack_map_stream->AddDexRegisterEntry(DexRegisterLocation::Kind::kNone, 0); |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1283 | continue; |
Nicolas Geoffray | 3946844 | 2014-09-02 15:17:15 +0100 | [diff] [blame] | 1284 | } |
| 1285 | |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1286 | using Kind = DexRegisterLocation::Kind; |
Nicolas Geoffray | 0a23d74 | 2015-05-07 11:57:35 +0100 | [diff] [blame] | 1287 | Location location = environment->GetLocationAt(i); |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1288 | switch (location.GetKind()) { |
| 1289 | case Location::kConstant: { |
| 1290 | DCHECK_EQ(current, location.GetConstant()); |
| 1291 | if (current->IsLongConstant()) { |
| 1292 | int64_t value = current->AsLongConstant()->GetValue(); |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1293 | stack_map_stream->AddDexRegisterEntry(Kind::kConstant, Low32Bits(value)); |
| 1294 | stack_map_stream->AddDexRegisterEntry(Kind::kConstant, High32Bits(value)); |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 1295 | ++i; |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1296 | DCHECK_LT(i, environment_size); |
| 1297 | } else if (current->IsDoubleConstant()) { |
Roland Levillain | da4d79b | 2015-03-24 14:36:11 +0000 | [diff] [blame] | 1298 | int64_t value = bit_cast<int64_t, double>(current->AsDoubleConstant()->GetValue()); |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1299 | stack_map_stream->AddDexRegisterEntry(Kind::kConstant, Low32Bits(value)); |
| 1300 | stack_map_stream->AddDexRegisterEntry(Kind::kConstant, High32Bits(value)); |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 1301 | ++i; |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1302 | DCHECK_LT(i, environment_size); |
| 1303 | } else if (current->IsIntConstant()) { |
| 1304 | int32_t value = current->AsIntConstant()->GetValue(); |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1305 | stack_map_stream->AddDexRegisterEntry(Kind::kConstant, value); |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1306 | } else if (current->IsNullConstant()) { |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1307 | stack_map_stream->AddDexRegisterEntry(Kind::kConstant, 0); |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1308 | } else { |
| 1309 | DCHECK(current->IsFloatConstant()) << current->DebugName(); |
Roland Levillain | da4d79b | 2015-03-24 14:36:11 +0000 | [diff] [blame] | 1310 | int32_t value = bit_cast<int32_t, float>(current->AsFloatConstant()->GetValue()); |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1311 | stack_map_stream->AddDexRegisterEntry(Kind::kConstant, value); |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1312 | } |
| 1313 | break; |
| 1314 | } |
| 1315 | |
| 1316 | case Location::kStackSlot: { |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1317 | stack_map_stream->AddDexRegisterEntry(Kind::kInStack, location.GetStackIndex()); |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1318 | break; |
| 1319 | } |
| 1320 | |
| 1321 | case Location::kDoubleStackSlot: { |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1322 | stack_map_stream->AddDexRegisterEntry(Kind::kInStack, location.GetStackIndex()); |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 1323 | stack_map_stream->AddDexRegisterEntry( |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1324 | Kind::kInStack, location.GetHighStackIndex(kVRegSize)); |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 1325 | ++i; |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1326 | DCHECK_LT(i, environment_size); |
| 1327 | break; |
| 1328 | } |
| 1329 | |
| 1330 | case Location::kRegister : { |
| 1331 | int id = location.reg(); |
| 1332 | if (slow_path != nullptr && slow_path->IsCoreRegisterSaved(id)) { |
| 1333 | uint32_t offset = slow_path->GetStackOffsetOfCoreRegister(id); |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1334 | stack_map_stream->AddDexRegisterEntry(Kind::kInStack, offset); |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 1335 | if (current->GetType() == DataType::Type::kInt64) { |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1336 | stack_map_stream->AddDexRegisterEntry(Kind::kInStack, offset + kVRegSize); |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 1337 | ++i; |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1338 | DCHECK_LT(i, environment_size); |
| 1339 | } |
| 1340 | } else { |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1341 | stack_map_stream->AddDexRegisterEntry(Kind::kInRegister, id); |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 1342 | if (current->GetType() == DataType::Type::kInt64) { |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1343 | stack_map_stream->AddDexRegisterEntry(Kind::kInRegisterHigh, id); |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 1344 | ++i; |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1345 | DCHECK_LT(i, environment_size); |
| 1346 | } |
| 1347 | } |
| 1348 | break; |
| 1349 | } |
| 1350 | |
| 1351 | case Location::kFpuRegister : { |
| 1352 | int id = location.reg(); |
| 1353 | if (slow_path != nullptr && slow_path->IsFpuRegisterSaved(id)) { |
| 1354 | uint32_t offset = slow_path->GetStackOffsetOfFpuRegister(id); |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1355 | stack_map_stream->AddDexRegisterEntry(Kind::kInStack, offset); |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 1356 | if (current->GetType() == DataType::Type::kFloat64) { |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1357 | stack_map_stream->AddDexRegisterEntry(Kind::kInStack, offset + kVRegSize); |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 1358 | ++i; |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1359 | DCHECK_LT(i, environment_size); |
| 1360 | } |
| 1361 | } else { |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1362 | stack_map_stream->AddDexRegisterEntry(Kind::kInFpuRegister, id); |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 1363 | if (current->GetType() == DataType::Type::kFloat64) { |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1364 | stack_map_stream->AddDexRegisterEntry(Kind::kInFpuRegisterHigh, id); |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 1365 | ++i; |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1366 | DCHECK_LT(i, environment_size); |
| 1367 | } |
| 1368 | } |
| 1369 | break; |
| 1370 | } |
| 1371 | |
| 1372 | case Location::kFpuRegisterPair : { |
| 1373 | int low = location.low(); |
| 1374 | int high = location.high(); |
| 1375 | if (slow_path != nullptr && slow_path->IsFpuRegisterSaved(low)) { |
| 1376 | uint32_t offset = slow_path->GetStackOffsetOfFpuRegister(low); |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1377 | stack_map_stream->AddDexRegisterEntry(Kind::kInStack, offset); |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1378 | } else { |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1379 | stack_map_stream->AddDexRegisterEntry(Kind::kInFpuRegister, low); |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1380 | } |
| 1381 | if (slow_path != nullptr && slow_path->IsFpuRegisterSaved(high)) { |
| 1382 | uint32_t offset = slow_path->GetStackOffsetOfFpuRegister(high); |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1383 | stack_map_stream->AddDexRegisterEntry(Kind::kInStack, offset); |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 1384 | ++i; |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1385 | } else { |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1386 | stack_map_stream->AddDexRegisterEntry(Kind::kInFpuRegister, high); |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 1387 | ++i; |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1388 | } |
| 1389 | DCHECK_LT(i, environment_size); |
| 1390 | break; |
| 1391 | } |
| 1392 | |
| 1393 | case Location::kRegisterPair : { |
| 1394 | int low = location.low(); |
| 1395 | int high = location.high(); |
| 1396 | if (slow_path != nullptr && slow_path->IsCoreRegisterSaved(low)) { |
| 1397 | uint32_t offset = slow_path->GetStackOffsetOfCoreRegister(low); |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1398 | stack_map_stream->AddDexRegisterEntry(Kind::kInStack, offset); |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1399 | } else { |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1400 | stack_map_stream->AddDexRegisterEntry(Kind::kInRegister, low); |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1401 | } |
| 1402 | if (slow_path != nullptr && slow_path->IsCoreRegisterSaved(high)) { |
| 1403 | uint32_t offset = slow_path->GetStackOffsetOfCoreRegister(high); |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1404 | stack_map_stream->AddDexRegisterEntry(Kind::kInStack, offset); |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1405 | } else { |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1406 | stack_map_stream->AddDexRegisterEntry(Kind::kInRegister, high); |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1407 | } |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 1408 | ++i; |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1409 | DCHECK_LT(i, environment_size); |
| 1410 | break; |
| 1411 | } |
| 1412 | |
| 1413 | case Location::kInvalid: { |
David Srbecky | e140212 | 2018-06-13 18:20:45 +0100 | [diff] [blame] | 1414 | stack_map_stream->AddDexRegisterEntry(Kind::kNone, 0); |
Nicolas Geoffray | eeefa12 | 2015-03-13 18:52:59 +0000 | [diff] [blame] | 1415 | break; |
| 1416 | } |
| 1417 | |
| 1418 | default: |
| 1419 | LOG(FATAL) << "Unexpected kind " << location.GetKind(); |
| 1420 | } |
Nicolas Geoffray | 3946844 | 2014-09-02 15:17:15 +0100 | [diff] [blame] | 1421 | } |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 1422 | |
| 1423 | if (environment->GetParent() != nullptr) { |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 1424 | stack_map_stream->EndInlineInfoEntry(); |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 1425 | } |
Nicolas Geoffray | 3946844 | 2014-09-02 15:17:15 +0100 | [diff] [blame] | 1426 | } |
| 1427 | |
Calin Juravle | 77520bc | 2015-01-12 18:45:46 +0000 | [diff] [blame] | 1428 | bool CodeGenerator::CanMoveNullCheckToUser(HNullCheck* null_check) { |
| 1429 | HInstruction* first_next_not_move = null_check->GetNextDisregardingMoves(); |
Calin Juravle | 641547a | 2015-04-21 22:08:51 +0100 | [diff] [blame] | 1430 | |
| 1431 | return (first_next_not_move != nullptr) |
| 1432 | && first_next_not_move->CanDoImplicitNullCheckOn(null_check->InputAt(0)); |
Calin Juravle | 77520bc | 2015-01-12 18:45:46 +0000 | [diff] [blame] | 1433 | } |
| 1434 | |
| 1435 | void CodeGenerator::MaybeRecordImplicitNullCheck(HInstruction* instr) { |
Vladimir Marko | 3b7537b | 2016-09-13 11:56:01 +0000 | [diff] [blame] | 1436 | if (!compiler_options_.GetImplicitNullChecks()) { |
| 1437 | return; |
| 1438 | } |
| 1439 | |
Calin Juravle | 77520bc | 2015-01-12 18:45:46 +0000 | [diff] [blame] | 1440 | // If we are from a static path don't record the pc as we can't throw NPE. |
| 1441 | // NB: having the checks here makes the code much less verbose in the arch |
| 1442 | // specific code generators. |
| 1443 | if (instr->IsStaticFieldSet() || instr->IsStaticFieldGet()) { |
| 1444 | return; |
| 1445 | } |
| 1446 | |
Calin Juravle | 641547a | 2015-04-21 22:08:51 +0100 | [diff] [blame] | 1447 | if (!instr->CanDoImplicitNullCheckOn(instr->InputAt(0))) { |
Calin Juravle | 77520bc | 2015-01-12 18:45:46 +0000 | [diff] [blame] | 1448 | return; |
| 1449 | } |
| 1450 | |
| 1451 | // Find the first previous instruction which is not a move. |
| 1452 | HInstruction* first_prev_not_move = instr->GetPreviousDisregardingMoves(); |
| 1453 | |
| 1454 | // If the instruction is a null check it means that `instr` is the first user |
| 1455 | // and needs to record the pc. |
| 1456 | if (first_prev_not_move != nullptr && first_prev_not_move->IsNullCheck()) { |
| 1457 | HNullCheck* null_check = first_prev_not_move->AsNullCheck(); |
Vladimir Marko | 3b7537b | 2016-09-13 11:56:01 +0000 | [diff] [blame] | 1458 | // TODO: The parallel moves modify the environment. Their changes need to be |
| 1459 | // reverted otherwise the stack maps at the throw point will not be correct. |
| 1460 | RecordPcInfo(null_check, null_check->GetDexPc()); |
Calin Juravle | 77520bc | 2015-01-12 18:45:46 +0000 | [diff] [blame] | 1461 | } |
| 1462 | } |
| 1463 | |
Vladimir Marko | 804b03f | 2016-09-14 16:26:36 +0100 | [diff] [blame] | 1464 | LocationSummary* CodeGenerator::CreateThrowingSlowPathLocations(HInstruction* instruction, |
| 1465 | RegisterSet caller_saves) { |
Vladimir Marko | 3b7537b | 2016-09-13 11:56:01 +0000 | [diff] [blame] | 1466 | // Note: Using kNoCall allows the method to be treated as leaf (and eliminate the |
| 1467 | // HSuspendCheck from entry block). However, it will still get a valid stack frame |
| 1468 | // because the HNullCheck needs an environment. |
| 1469 | LocationSummary::CallKind call_kind = LocationSummary::kNoCall; |
| 1470 | // When throwing from a try block, we may need to retrieve dalvik registers from |
| 1471 | // physical registers and we also need to set up stack mask for GC. This is |
| 1472 | // implicitly achieved by passing kCallOnSlowPath to the LocationSummary. |
Vladimir Marko | 804b03f | 2016-09-14 16:26:36 +0100 | [diff] [blame] | 1473 | bool can_throw_into_catch_block = instruction->CanThrowIntoCatchBlock(); |
Vladimir Marko | 3b7537b | 2016-09-13 11:56:01 +0000 | [diff] [blame] | 1474 | if (can_throw_into_catch_block) { |
| 1475 | call_kind = LocationSummary::kCallOnSlowPath; |
| 1476 | } |
Vladimir Marko | ca6fff8 | 2017-10-03 14:49:14 +0100 | [diff] [blame] | 1477 | LocationSummary* locations = |
| 1478 | new (GetGraph()->GetAllocator()) LocationSummary(instruction, call_kind); |
Vladimir Marko | 3b7537b | 2016-09-13 11:56:01 +0000 | [diff] [blame] | 1479 | if (can_throw_into_catch_block && compiler_options_.GetImplicitNullChecks()) { |
Vladimir Marko | 804b03f | 2016-09-14 16:26:36 +0100 | [diff] [blame] | 1480 | locations->SetCustomSlowPathCallerSaves(caller_saves); // Default: no caller-save registers. |
Vladimir Marko | 3b7537b | 2016-09-13 11:56:01 +0000 | [diff] [blame] | 1481 | } |
Vladimir Marko | 804b03f | 2016-09-14 16:26:36 +0100 | [diff] [blame] | 1482 | DCHECK(!instruction->HasUses()); |
Vladimir Marko | 3b7537b | 2016-09-13 11:56:01 +0000 | [diff] [blame] | 1483 | return locations; |
| 1484 | } |
| 1485 | |
Calin Juravle | 2ae4818 | 2016-03-16 14:05:09 +0000 | [diff] [blame] | 1486 | void CodeGenerator::GenerateNullCheck(HNullCheck* instruction) { |
Vladimir Marko | 3b7537b | 2016-09-13 11:56:01 +0000 | [diff] [blame] | 1487 | if (compiler_options_.GetImplicitNullChecks()) { |
Vladimir Marko | cd09e1f | 2017-11-24 15:02:40 +0000 | [diff] [blame] | 1488 | MaybeRecordStat(stats_, MethodCompilationStat::kImplicitNullCheckGenerated); |
Calin Juravle | 2ae4818 | 2016-03-16 14:05:09 +0000 | [diff] [blame] | 1489 | GenerateImplicitNullCheck(instruction); |
| 1490 | } else { |
Vladimir Marko | cd09e1f | 2017-11-24 15:02:40 +0000 | [diff] [blame] | 1491 | MaybeRecordStat(stats_, MethodCompilationStat::kExplicitNullCheckGenerated); |
Calin Juravle | 2ae4818 | 2016-03-16 14:05:09 +0000 | [diff] [blame] | 1492 | GenerateExplicitNullCheck(instruction); |
| 1493 | } |
| 1494 | } |
| 1495 | |
Vladimir Marko | bea75ff | 2017-10-11 20:39:54 +0100 | [diff] [blame] | 1496 | void CodeGenerator::ClearSpillSlotsFromLoopPhisInStackMap(HSuspendCheck* suspend_check, |
| 1497 | HParallelMove* spills) const { |
Nicolas Geoffray | 3c04974 | 2014-09-24 18:10:46 +0100 | [diff] [blame] | 1498 | LocationSummary* locations = suspend_check->GetLocations(); |
| 1499 | HBasicBlock* block = suspend_check->GetBlock(); |
| 1500 | DCHECK(block->GetLoopInformation()->GetSuspendCheck() == suspend_check); |
| 1501 | DCHECK(block->IsLoopHeader()); |
Vladimir Marko | bea75ff | 2017-10-11 20:39:54 +0100 | [diff] [blame] | 1502 | DCHECK(block->GetFirstInstruction() == spills); |
Nicolas Geoffray | 3c04974 | 2014-09-24 18:10:46 +0100 | [diff] [blame] | 1503 | |
Vladimir Marko | bea75ff | 2017-10-11 20:39:54 +0100 | [diff] [blame] | 1504 | for (size_t i = 0, num_moves = spills->NumMoves(); i != num_moves; ++i) { |
| 1505 | Location dest = spills->MoveOperandsAt(i)->GetDestination(); |
| 1506 | // All parallel moves in loop headers are spills. |
| 1507 | DCHECK(dest.IsStackSlot() || dest.IsDoubleStackSlot() || dest.IsSIMDStackSlot()) << dest; |
| 1508 | // Clear the stack bit marking a reference. Do not bother to check if the spill is |
| 1509 | // actually a reference spill, clearing bits that are already zero is harmless. |
| 1510 | locations->ClearStackBit(dest.GetStackIndex() / kVRegSize); |
Nicolas Geoffray | 3c04974 | 2014-09-24 18:10:46 +0100 | [diff] [blame] | 1511 | } |
| 1512 | } |
| 1513 | |
Nicolas Geoffray | 9021825 | 2015-04-15 11:56:51 +0100 | [diff] [blame] | 1514 | void CodeGenerator::EmitParallelMoves(Location from1, |
| 1515 | Location to1, |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 1516 | DataType::Type type1, |
Nicolas Geoffray | 9021825 | 2015-04-15 11:56:51 +0100 | [diff] [blame] | 1517 | Location from2, |
| 1518 | Location to2, |
Vladimir Marko | 0ebe0d8 | 2017-09-21 22:50:39 +0100 | [diff] [blame] | 1519 | DataType::Type type2) { |
Vladimir Marko | ca6fff8 | 2017-10-03 14:49:14 +0100 | [diff] [blame] | 1520 | HParallelMove parallel_move(GetGraph()->GetAllocator()); |
Nicolas Geoffray | 9021825 | 2015-04-15 11:56:51 +0100 | [diff] [blame] | 1521 | parallel_move.AddMove(from1, to1, type1, nullptr); |
| 1522 | parallel_move.AddMove(from2, to2, type2, nullptr); |
Nicolas Geoffray | f0e3937 | 2014-11-12 17:50:07 +0000 | [diff] [blame] | 1523 | GetMoveResolver()->EmitNativeCode(¶llel_move); |
| 1524 | } |
| 1525 | |
Alexandre Rames | 91a6516 | 2016-09-19 13:54:30 +0100 | [diff] [blame] | 1526 | void CodeGenerator::ValidateInvokeRuntime(QuickEntrypointEnum entrypoint, |
| 1527 | HInstruction* instruction, |
| 1528 | SlowPathCode* slow_path) { |
Alexandre Rames | 78e3ef6 | 2015-08-12 13:43:29 +0100 | [diff] [blame] | 1529 | // Ensure that the call kind indication given to the register allocator is |
Alexandre Rames | 91a6516 | 2016-09-19 13:54:30 +0100 | [diff] [blame] | 1530 | // coherent with the runtime call generated. |
Alexandre Rames | 78e3ef6 | 2015-08-12 13:43:29 +0100 | [diff] [blame] | 1531 | if (slow_path == nullptr) { |
Roland Levillain | 0d5a281 | 2015-11-13 10:07:31 +0000 | [diff] [blame] | 1532 | DCHECK(instruction->GetLocations()->WillCall()) |
| 1533 | << "instruction->DebugName()=" << instruction->DebugName(); |
Alexandre Rames | 78e3ef6 | 2015-08-12 13:43:29 +0100 | [diff] [blame] | 1534 | } else { |
Serban Constantinescu | 806f012 | 2016-03-09 11:10:16 +0000 | [diff] [blame] | 1535 | DCHECK(instruction->GetLocations()->CallsOnSlowPath() || slow_path->IsFatal()) |
Roland Levillain | 0d5a281 | 2015-11-13 10:07:31 +0000 | [diff] [blame] | 1536 | << "instruction->DebugName()=" << instruction->DebugName() |
| 1537 | << " slow_path->GetDescription()=" << slow_path->GetDescription(); |
Alexandre Rames | 91a6516 | 2016-09-19 13:54:30 +0100 | [diff] [blame] | 1538 | } |
| 1539 | |
| 1540 | // Check that the GC side effect is set when required. |
| 1541 | // TODO: Reverse EntrypointCanTriggerGC |
| 1542 | if (EntrypointCanTriggerGC(entrypoint)) { |
| 1543 | if (slow_path == nullptr) { |
| 1544 | DCHECK(instruction->GetSideEffects().Includes(SideEffects::CanTriggerGC())) |
| 1545 | << "instruction->DebugName()=" << instruction->DebugName() |
| 1546 | << " instruction->GetSideEffects().ToString()=" |
| 1547 | << instruction->GetSideEffects().ToString(); |
| 1548 | } else { |
| 1549 | DCHECK(instruction->GetSideEffects().Includes(SideEffects::CanTriggerGC()) || |
| 1550 | // When (non-Baker) read barriers are enabled, some instructions |
| 1551 | // use a slow path to emit a read barrier, which does not trigger |
| 1552 | // GC. |
| 1553 | (kEmitCompilerReadBarrier && |
| 1554 | !kUseBakerReadBarrier && |
| 1555 | (instruction->IsInstanceFieldGet() || |
| 1556 | instruction->IsStaticFieldGet() || |
| 1557 | instruction->IsArrayGet() || |
| 1558 | instruction->IsLoadClass() || |
| 1559 | instruction->IsLoadString() || |
| 1560 | instruction->IsInstanceOf() || |
| 1561 | instruction->IsCheckCast() || |
| 1562 | (instruction->IsInvokeVirtual() && instruction->GetLocations()->Intrinsified())))) |
| 1563 | << "instruction->DebugName()=" << instruction->DebugName() |
| 1564 | << " instruction->GetSideEffects().ToString()=" |
| 1565 | << instruction->GetSideEffects().ToString() |
| 1566 | << " slow_path->GetDescription()=" << slow_path->GetDescription(); |
| 1567 | } |
| 1568 | } else { |
| 1569 | // The GC side effect is not required for the instruction. But the instruction might still have |
| 1570 | // it, for example if it calls other entrypoints requiring it. |
Alexandre Rames | 78e3ef6 | 2015-08-12 13:43:29 +0100 | [diff] [blame] | 1571 | } |
| 1572 | |
| 1573 | // Check the coherency of leaf information. |
| 1574 | DCHECK(instruction->IsSuspendCheck() |
| 1575 | || ((slow_path != nullptr) && slow_path->IsFatal()) |
| 1576 | || instruction->GetLocations()->CanCall() |
Roland Levillain | df3f822 | 2015-08-13 12:31:44 +0100 | [diff] [blame] | 1577 | || !IsLeafMethod()) |
| 1578 | << instruction->DebugName() << ((slow_path != nullptr) ? slow_path->GetDescription() : ""); |
Alexandre Rames | 78e3ef6 | 2015-08-12 13:43:29 +0100 | [diff] [blame] | 1579 | } |
| 1580 | |
Roland Levillain | dec8f63 | 2016-07-22 17:10:06 +0100 | [diff] [blame] | 1581 | void CodeGenerator::ValidateInvokeRuntimeWithoutRecordingPcInfo(HInstruction* instruction, |
| 1582 | SlowPathCode* slow_path) { |
| 1583 | DCHECK(instruction->GetLocations()->OnlyCallsOnSlowPath()) |
| 1584 | << "instruction->DebugName()=" << instruction->DebugName() |
| 1585 | << " slow_path->GetDescription()=" << slow_path->GetDescription(); |
| 1586 | // Only the Baker read barrier marking slow path used by certains |
| 1587 | // instructions is expected to invoke the runtime without recording |
| 1588 | // PC-related information. |
| 1589 | DCHECK(kUseBakerReadBarrier); |
| 1590 | DCHECK(instruction->IsInstanceFieldGet() || |
| 1591 | instruction->IsStaticFieldGet() || |
| 1592 | instruction->IsArrayGet() || |
Roland Levillain | 16d9f94 | 2016-08-25 17:27:56 +0100 | [diff] [blame] | 1593 | instruction->IsArraySet() || |
Roland Levillain | dec8f63 | 2016-07-22 17:10:06 +0100 | [diff] [blame] | 1594 | instruction->IsLoadClass() || |
| 1595 | instruction->IsLoadString() || |
| 1596 | instruction->IsInstanceOf() || |
| 1597 | instruction->IsCheckCast() || |
Roland Levillain | 0b671c0 | 2016-08-19 12:02:34 +0100 | [diff] [blame] | 1598 | (instruction->IsInvokeVirtual() && instruction->GetLocations()->Intrinsified()) || |
| 1599 | (instruction->IsInvokeStaticOrDirect() && instruction->GetLocations()->Intrinsified())) |
Roland Levillain | dec8f63 | 2016-07-22 17:10:06 +0100 | [diff] [blame] | 1600 | << "instruction->DebugName()=" << instruction->DebugName() |
| 1601 | << " slow_path->GetDescription()=" << slow_path->GetDescription(); |
| 1602 | } |
| 1603 | |
Nicolas Geoffray | a8ac913 | 2015-03-13 16:36:36 +0000 | [diff] [blame] | 1604 | void SlowPathCode::SaveLiveRegisters(CodeGenerator* codegen, LocationSummary* locations) { |
Nicolas Geoffray | a8ac913 | 2015-03-13 16:36:36 +0000 | [diff] [blame] | 1605 | size_t stack_offset = codegen->GetFirstRegisterSlotInSlowPath(); |
Roland Levillain | 0d5a281 | 2015-11-13 10:07:31 +0000 | [diff] [blame] | 1606 | |
Vladimir Marko | 70e9746 | 2016-08-09 11:04:26 +0100 | [diff] [blame] | 1607 | const uint32_t core_spills = codegen->GetSlowPathSpills(locations, /* core_registers */ true); |
| 1608 | for (uint32_t i : LowToHighBits(core_spills)) { |
| 1609 | // If the register holds an object, update the stack mask. |
| 1610 | if (locations->RegisterContainsObject(i)) { |
| 1611 | locations->SetStackBit(stack_offset / kVRegSize); |
Nicolas Geoffray | a8ac913 | 2015-03-13 16:36:36 +0000 | [diff] [blame] | 1612 | } |
Vladimir Marko | 70e9746 | 2016-08-09 11:04:26 +0100 | [diff] [blame] | 1613 | DCHECK_LT(stack_offset, codegen->GetFrameSize() - codegen->FrameEntrySpillSize()); |
| 1614 | DCHECK_LT(i, kMaximumNumberOfExpectedRegisters); |
| 1615 | saved_core_stack_offsets_[i] = stack_offset; |
| 1616 | stack_offset += codegen->SaveCoreRegister(stack_offset, i); |
Nicolas Geoffray | a8ac913 | 2015-03-13 16:36:36 +0000 | [diff] [blame] | 1617 | } |
| 1618 | |
Vladimir Marko | 70e9746 | 2016-08-09 11:04:26 +0100 | [diff] [blame] | 1619 | const uint32_t fp_spills = codegen->GetSlowPathSpills(locations, /* core_registers */ false); |
Vladimir Marko | 804b03f | 2016-09-14 16:26:36 +0100 | [diff] [blame] | 1620 | for (uint32_t i : LowToHighBits(fp_spills)) { |
Vladimir Marko | 70e9746 | 2016-08-09 11:04:26 +0100 | [diff] [blame] | 1621 | DCHECK_LT(stack_offset, codegen->GetFrameSize() - codegen->FrameEntrySpillSize()); |
| 1622 | DCHECK_LT(i, kMaximumNumberOfExpectedRegisters); |
| 1623 | saved_fpu_stack_offsets_[i] = stack_offset; |
| 1624 | stack_offset += codegen->SaveFloatingPointRegister(stack_offset, i); |
Nicolas Geoffray | a8ac913 | 2015-03-13 16:36:36 +0000 | [diff] [blame] | 1625 | } |
| 1626 | } |
| 1627 | |
| 1628 | void SlowPathCode::RestoreLiveRegisters(CodeGenerator* codegen, LocationSummary* locations) { |
Nicolas Geoffray | a8ac913 | 2015-03-13 16:36:36 +0000 | [diff] [blame] | 1629 | size_t stack_offset = codegen->GetFirstRegisterSlotInSlowPath(); |
Roland Levillain | 0d5a281 | 2015-11-13 10:07:31 +0000 | [diff] [blame] | 1630 | |
Vladimir Marko | 70e9746 | 2016-08-09 11:04:26 +0100 | [diff] [blame] | 1631 | const uint32_t core_spills = codegen->GetSlowPathSpills(locations, /* core_registers */ true); |
| 1632 | for (uint32_t i : LowToHighBits(core_spills)) { |
| 1633 | DCHECK_LT(stack_offset, codegen->GetFrameSize() - codegen->FrameEntrySpillSize()); |
| 1634 | DCHECK_LT(i, kMaximumNumberOfExpectedRegisters); |
| 1635 | stack_offset += codegen->RestoreCoreRegister(stack_offset, i); |
Nicolas Geoffray | a8ac913 | 2015-03-13 16:36:36 +0000 | [diff] [blame] | 1636 | } |
| 1637 | |
Vladimir Marko | 70e9746 | 2016-08-09 11:04:26 +0100 | [diff] [blame] | 1638 | const uint32_t fp_spills = codegen->GetSlowPathSpills(locations, /* core_registers */ false); |
Vladimir Marko | 804b03f | 2016-09-14 16:26:36 +0100 | [diff] [blame] | 1639 | for (uint32_t i : LowToHighBits(fp_spills)) { |
Vladimir Marko | 70e9746 | 2016-08-09 11:04:26 +0100 | [diff] [blame] | 1640 | DCHECK_LT(stack_offset, codegen->GetFrameSize() - codegen->FrameEntrySpillSize()); |
| 1641 | DCHECK_LT(i, kMaximumNumberOfExpectedRegisters); |
| 1642 | stack_offset += codegen->RestoreFloatingPointRegister(stack_offset, i); |
Nicolas Geoffray | a8ac913 | 2015-03-13 16:36:36 +0000 | [diff] [blame] | 1643 | } |
| 1644 | } |
| 1645 | |
Nicolas Geoffray | 5bd05a5 | 2015-10-13 09:48:30 +0100 | [diff] [blame] | 1646 | void CodeGenerator::CreateSystemArrayCopyLocationSummary(HInvoke* invoke) { |
| 1647 | // Check to see if we have known failures that will cause us to have to bail out |
| 1648 | // to the runtime, and just generate the runtime call directly. |
| 1649 | HIntConstant* src_pos = invoke->InputAt(1)->AsIntConstant(); |
| 1650 | HIntConstant* dest_pos = invoke->InputAt(3)->AsIntConstant(); |
| 1651 | |
| 1652 | // The positions must be non-negative. |
| 1653 | if ((src_pos != nullptr && src_pos->GetValue() < 0) || |
| 1654 | (dest_pos != nullptr && dest_pos->GetValue() < 0)) { |
| 1655 | // We will have to fail anyways. |
| 1656 | return; |
| 1657 | } |
| 1658 | |
| 1659 | // The length must be >= 0. |
| 1660 | HIntConstant* length = invoke->InputAt(4)->AsIntConstant(); |
| 1661 | if (length != nullptr) { |
| 1662 | int32_t len = length->GetValue(); |
| 1663 | if (len < 0) { |
| 1664 | // Just call as normal. |
| 1665 | return; |
| 1666 | } |
| 1667 | } |
| 1668 | |
| 1669 | SystemArrayCopyOptimizations optimizations(invoke); |
| 1670 | |
| 1671 | if (optimizations.GetDestinationIsSource()) { |
| 1672 | if (src_pos != nullptr && dest_pos != nullptr && src_pos->GetValue() < dest_pos->GetValue()) { |
| 1673 | // We only support backward copying if source and destination are the same. |
| 1674 | return; |
| 1675 | } |
| 1676 | } |
| 1677 | |
| 1678 | if (optimizations.GetDestinationIsPrimitiveArray() || optimizations.GetSourceIsPrimitiveArray()) { |
| 1679 | // We currently don't intrinsify primitive copying. |
| 1680 | return; |
| 1681 | } |
| 1682 | |
Vladimir Marko | ca6fff8 | 2017-10-03 14:49:14 +0100 | [diff] [blame] | 1683 | ArenaAllocator* allocator = invoke->GetBlock()->GetGraph()->GetAllocator(); |
Nicolas Geoffray | 5bd05a5 | 2015-10-13 09:48:30 +0100 | [diff] [blame] | 1684 | LocationSummary* locations = new (allocator) LocationSummary(invoke, |
| 1685 | LocationSummary::kCallOnSlowPath, |
| 1686 | kIntrinsified); |
| 1687 | // arraycopy(Object src, int src_pos, Object dest, int dest_pos, int length). |
| 1688 | locations->SetInAt(0, Location::RequiresRegister()); |
| 1689 | locations->SetInAt(1, Location::RegisterOrConstant(invoke->InputAt(1))); |
| 1690 | locations->SetInAt(2, Location::RequiresRegister()); |
| 1691 | locations->SetInAt(3, Location::RegisterOrConstant(invoke->InputAt(3))); |
| 1692 | locations->SetInAt(4, Location::RegisterOrConstant(invoke->InputAt(4))); |
| 1693 | |
| 1694 | locations->AddTemp(Location::RequiresRegister()); |
| 1695 | locations->AddTemp(Location::RequiresRegister()); |
| 1696 | locations->AddTemp(Location::RequiresRegister()); |
| 1697 | } |
| 1698 | |
Nicolas Geoffray | 132d836 | 2016-11-16 09:19:42 +0000 | [diff] [blame] | 1699 | void CodeGenerator::EmitJitRoots(uint8_t* code, |
| 1700 | Handle<mirror::ObjectArray<mirror::Object>> roots, |
Nicolas Geoffray | f0acfe7 | 2017-01-09 20:54:52 +0000 | [diff] [blame] | 1701 | const uint8_t* roots_data) { |
Vladimir Marko | 174b2e2 | 2017-10-12 13:34:49 +0100 | [diff] [blame] | 1702 | code_generation_data_->EmitJitRoots(roots); |
Nicolas Geoffray | 132d836 | 2016-11-16 09:19:42 +0000 | [diff] [blame] | 1703 | EmitJitRootPatches(code, roots_data); |
| 1704 | } |
| 1705 | |
Nicolas Geoffray | b048cb7 | 2017-01-23 22:50:24 +0000 | [diff] [blame] | 1706 | QuickEntrypointEnum CodeGenerator::GetArrayAllocationEntrypoint(Handle<mirror::Class> array_klass) { |
| 1707 | ScopedObjectAccess soa(Thread::Current()); |
Andreas Gampe | fa4333d | 2017-02-14 11:10:34 -0800 | [diff] [blame] | 1708 | if (array_klass == nullptr) { |
Nicolas Geoffray | b048cb7 | 2017-01-23 22:50:24 +0000 | [diff] [blame] | 1709 | // This can only happen for non-primitive arrays, as primitive arrays can always |
| 1710 | // be resolved. |
| 1711 | return kQuickAllocArrayResolved32; |
| 1712 | } |
| 1713 | |
| 1714 | switch (array_klass->GetComponentSize()) { |
| 1715 | case 1: return kQuickAllocArrayResolved8; |
| 1716 | case 2: return kQuickAllocArrayResolved16; |
| 1717 | case 4: return kQuickAllocArrayResolved32; |
| 1718 | case 8: return kQuickAllocArrayResolved64; |
| 1719 | } |
| 1720 | LOG(FATAL) << "Unreachable"; |
| 1721 | return kQuickAllocArrayResolved; |
| 1722 | } |
| 1723 | |
Nicolas Geoffray | d4dd255 | 2014-02-28 10:23:58 +0000 | [diff] [blame] | 1724 | } // namespace art |