Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 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 "reg_type_cache.h" |
| 18 | |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame^] | 19 | #include "dex_file-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 20 | #include "mirror/class-inl.h" |
| 21 | #include "mirror/object-inl.h" |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 22 | #include "object_utils.h" |
| 23 | |
| 24 | namespace art { |
| 25 | namespace verifier { |
| 26 | |
| 27 | static RegType::Type RegTypeFromPrimitiveType(Primitive::Type prim_type) { |
| 28 | switch (prim_type) { |
| 29 | case Primitive::kPrimBoolean: return RegType::kRegTypeBoolean; |
| 30 | case Primitive::kPrimByte: return RegType::kRegTypeByte; |
| 31 | case Primitive::kPrimShort: return RegType::kRegTypeShort; |
| 32 | case Primitive::kPrimChar: return RegType::kRegTypeChar; |
| 33 | case Primitive::kPrimInt: return RegType::kRegTypeInteger; |
| 34 | case Primitive::kPrimLong: return RegType::kRegTypeLongLo; |
| 35 | case Primitive::kPrimFloat: return RegType::kRegTypeFloat; |
| 36 | case Primitive::kPrimDouble: return RegType::kRegTypeDoubleLo; |
| 37 | case Primitive::kPrimVoid: |
Ian Rogers | ad0b3a3 | 2012-04-16 14:50:24 -0700 | [diff] [blame] | 38 | default: return RegType::kRegTypeConflict; |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 39 | } |
| 40 | } |
| 41 | |
| 42 | static RegType::Type RegTypeFromDescriptor(const std::string& descriptor) { |
| 43 | if (descriptor.length() == 1) { |
| 44 | switch (descriptor[0]) { |
| 45 | case 'Z': return RegType::kRegTypeBoolean; |
| 46 | case 'B': return RegType::kRegTypeByte; |
| 47 | case 'S': return RegType::kRegTypeShort; |
| 48 | case 'C': return RegType::kRegTypeChar; |
| 49 | case 'I': return RegType::kRegTypeInteger; |
| 50 | case 'J': return RegType::kRegTypeLongLo; |
| 51 | case 'F': return RegType::kRegTypeFloat; |
| 52 | case 'D': return RegType::kRegTypeDoubleLo; |
| 53 | case 'V': |
Ian Rogers | ad0b3a3 | 2012-04-16 14:50:24 -0700 | [diff] [blame] | 54 | default: return RegType::kRegTypeConflict; |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 55 | } |
| 56 | } else if (descriptor[0] == 'L' || descriptor[0] == '[') { |
| 57 | return RegType::kRegTypeReference; |
| 58 | } else { |
Ian Rogers | ad0b3a3 | 2012-04-16 14:50:24 -0700 | [diff] [blame] | 59 | return RegType::kRegTypeConflict; |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 60 | } |
| 61 | } |
| 62 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 63 | const RegType& RegTypeCache::FromDescriptor(mirror::ClassLoader* loader, const char* descriptor, |
Ian Rogers | b490357 | 2012-10-11 11:52:56 -0700 | [diff] [blame] | 64 | bool precise) { |
| 65 | return From(RegTypeFromDescriptor(descriptor), loader, descriptor, precise); |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 66 | } |
| 67 | |
Ian Rogers | b490357 | 2012-10-11 11:52:56 -0700 | [diff] [blame] | 68 | static bool MatchingPrecisionForClass(RegType* entry, bool precise) |
| 69 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 70 | return (entry->IsPreciseReference() == precise) || (entry->GetClass()->IsFinal() && !precise); |
| 71 | } |
| 72 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 73 | const RegType& RegTypeCache::From(RegType::Type type, mirror::ClassLoader* loader, |
| 74 | const char* descriptor, bool precise) { |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 75 | if (type <= RegType::kRegTypeLastFixedLocation) { |
| 76 | // entries should be sized greater than primitive types |
| 77 | DCHECK_GT(entries_.size(), static_cast<size_t>(type)); |
| 78 | RegType* entry = entries_[type]; |
| 79 | if (entry == NULL) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 80 | mirror::Class* c = NULL; |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 81 | if (strlen(descriptor) != 0) { |
Elliott Hughes | 80537bb | 2013-01-04 16:37:26 -0800 | [diff] [blame] | 82 | c = Runtime::Current()->GetClassLinker()->FindSystemClass(descriptor); |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 83 | } |
Elliott Hughes | 80537bb | 2013-01-04 16:37:26 -0800 | [diff] [blame] | 84 | entry = new RegType(type, c, 0, type); |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 85 | entries_[type] = entry; |
| 86 | } |
| 87 | return *entry; |
| 88 | } else { |
Ian Rogers | b490357 | 2012-10-11 11:52:56 -0700 | [diff] [blame] | 89 | DCHECK(type == RegType::kRegTypeReference || type == RegType::kRegTypePreciseReference); |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 90 | ClassHelper kh; |
| 91 | for (size_t i = RegType::kRegTypeLastFixedLocation + 1; i < entries_.size(); i++) { |
| 92 | RegType* cur_entry = entries_[i]; |
| 93 | // check resolved and unresolved references, ignore uninitialized references |
Ian Rogers | b490357 | 2012-10-11 11:52:56 -0700 | [diff] [blame] | 94 | if (cur_entry->HasClass()) { |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 95 | kh.ChangeClass(cur_entry->GetClass()); |
Ian Rogers | b490357 | 2012-10-11 11:52:56 -0700 | [diff] [blame] | 96 | if (MatchingPrecisionForClass(cur_entry, precise) && |
| 97 | (strcmp(descriptor, kh.GetDescriptor()) == 0)) { |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 98 | return *cur_entry; |
| 99 | } |
| 100 | } else if (cur_entry->IsUnresolvedReference() && |
Elliott Hughes | 80537bb | 2013-01-04 16:37:26 -0800 | [diff] [blame] | 101 | cur_entry->GetDescriptor() == descriptor) { |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 102 | return *cur_entry; |
| 103 | } |
| 104 | } |
Elliott Hughes | 80537bb | 2013-01-04 16:37:26 -0800 | [diff] [blame] | 105 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 106 | mirror::Class* c; |
Elliott Hughes | 80537bb | 2013-01-04 16:37:26 -0800 | [diff] [blame] | 107 | if (can_load_classes_) { |
| 108 | c = class_linker->FindClass(descriptor, loader); |
| 109 | } else { |
| 110 | c = class_linker->LookupClass(descriptor, loader); |
| 111 | } |
| 112 | if (c != NULL) { |
Ian Rogers | b490357 | 2012-10-11 11:52:56 -0700 | [diff] [blame] | 113 | // Able to resolve so create resolved register type that is precise if we |
| 114 | // know the type is final. |
Elliott Hughes | 80537bb | 2013-01-04 16:37:26 -0800 | [diff] [blame] | 115 | RegType* entry = new RegType(c->IsFinal() ? RegType::kRegTypePreciseReference |
| 116 | : RegType::kRegTypeReference, |
| 117 | c, 0, entries_.size()); |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 118 | entries_.push_back(entry); |
| 119 | return *entry; |
| 120 | } else { |
| 121 | // TODO: we assume unresolved, but we may be able to do better by validating whether the |
| 122 | // descriptor string is valid |
| 123 | // Unable to resolve so create unresolved register type |
Elliott Hughes | 80537bb | 2013-01-04 16:37:26 -0800 | [diff] [blame] | 124 | if (can_load_classes_) { |
| 125 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 126 | Thread::Current()->ClearException(); |
| 127 | } else { |
| 128 | DCHECK(!Thread::Current()->IsExceptionPending()); |
| 129 | } |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 130 | if (IsValidDescriptor(descriptor)) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 131 | RegType* entry = |
| 132 | new RegType(RegType::kRegTypeUnresolvedReference, descriptor, 0, entries_.size()); |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 133 | entries_.push_back(entry); |
| 134 | return *entry; |
| 135 | } else { |
| 136 | // The descriptor is broken return the unknown type as there's nothing sensible that |
| 137 | // could be done at runtime |
Ian Rogers | ad0b3a3 | 2012-04-16 14:50:24 -0700 | [diff] [blame] | 138 | return Conflict(); |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 139 | } |
| 140 | } |
| 141 | } |
| 142 | } |
| 143 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 144 | const RegType& RegTypeCache::FromClass(mirror::Class* klass, bool precise) { |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 145 | if (klass->IsPrimitive()) { |
| 146 | RegType::Type type = RegTypeFromPrimitiveType(klass->GetPrimitiveType()); |
| 147 | // entries should be sized greater than primitive types |
| 148 | DCHECK_GT(entries_.size(), static_cast<size_t>(type)); |
| 149 | RegType* entry = entries_[type]; |
| 150 | if (entry == NULL) { |
| 151 | entry = new RegType(type, klass, 0, type); |
| 152 | entries_[type] = entry; |
| 153 | } |
| 154 | return *entry; |
| 155 | } else { |
| 156 | for (size_t i = RegType::kRegTypeLastFixedLocation + 1; i < entries_.size(); i++) { |
| 157 | RegType* cur_entry = entries_[i]; |
Ian Rogers | b490357 | 2012-10-11 11:52:56 -0700 | [diff] [blame] | 158 | if ((cur_entry->HasClass()) && |
| 159 | MatchingPrecisionForClass(cur_entry, precise) && cur_entry->GetClass() == klass) { |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 160 | return *cur_entry; |
| 161 | } |
| 162 | } |
Ian Rogers | b490357 | 2012-10-11 11:52:56 -0700 | [diff] [blame] | 163 | RegType* entry = new RegType(precise ? RegType::kRegTypePreciseReference |
| 164 | : RegType::kRegTypeReference, |
| 165 | klass, 0, entries_.size()); |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 166 | entries_.push_back(entry); |
| 167 | return *entry; |
| 168 | } |
| 169 | } |
| 170 | |
Ian Rogers | 529781d | 2012-07-23 17:24:29 -0700 | [diff] [blame] | 171 | const RegType& RegTypeCache::FromUnresolvedMerge(const RegType& left, const RegType& right) { |
| 172 | std::set<uint16_t> types; |
| 173 | if (left.IsUnresolvedMergedReference()) { |
| 174 | types = left.GetMergedTypes(this); |
| 175 | } else { |
| 176 | types.insert(left.GetId()); |
| 177 | } |
| 178 | if (right.IsUnresolvedMergedReference()) { |
| 179 | std::set<uint16_t> right_types = right.GetMergedTypes(this); |
| 180 | types.insert(right_types.begin(), right_types.end()); |
| 181 | } else { |
| 182 | types.insert(right.GetId()); |
| 183 | } |
| 184 | // Check if entry already exists. |
| 185 | for (size_t i = RegType::kRegTypeLastFixedLocation + 1; i < entries_.size(); i++) { |
| 186 | RegType* cur_entry = entries_[i]; |
| 187 | if (cur_entry->IsUnresolvedMergedReference()) { |
| 188 | std::set<uint16_t> cur_entry_types = cur_entry->GetMergedTypes(this); |
| 189 | if (cur_entry_types == types) { |
| 190 | return *cur_entry; |
| 191 | } |
| 192 | } |
| 193 | } |
| 194 | // Create entry. |
| 195 | uint32_t merged_ids = static_cast<uint32_t>(left.GetId()) << 16 | |
| 196 | static_cast<uint32_t>(right.GetId()); |
| 197 | RegType* entry = new RegType(RegType::kRegTypeUnresolvedMergedReference, NULL, merged_ids, |
| 198 | entries_.size()); |
| 199 | entries_.push_back(entry); |
| 200 | #ifndef DEBUG |
| 201 | std::set<uint16_t> check_types = entry->GetMergedTypes(this); |
| 202 | CHECK(check_types == types); |
| 203 | #endif |
| 204 | return *entry; |
| 205 | } |
| 206 | |
| 207 | const RegType& RegTypeCache::FromUnresolvedSuperClass(const RegType& child) { |
| 208 | // Check if entry already exists. |
| 209 | for (size_t i = RegType::kRegTypeLastFixedLocation + 1; i < entries_.size(); i++) { |
| 210 | RegType* cur_entry = entries_[i]; |
| 211 | if (cur_entry->IsUnresolvedSuperClass()) { |
| 212 | uint16_t unresolved_super_child_id = cur_entry->GetUnresolvedSuperClassChildId(); |
| 213 | if (unresolved_super_child_id == child.GetId()) { |
| 214 | return *cur_entry; |
| 215 | } |
| 216 | } |
| 217 | } |
| 218 | // Create entry. |
| 219 | RegType* entry = new RegType(RegType::kRegTypeUnresolvedSuperClass, NULL, child.GetId(), |
| 220 | entries_.size()); |
| 221 | entries_.push_back(entry); |
| 222 | return *entry; |
| 223 | } |
| 224 | |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 225 | const RegType& RegTypeCache::Uninitialized(const RegType& type, uint32_t allocation_pc) { |
| 226 | RegType* entry; |
| 227 | if (type.IsUnresolvedTypes()) { |
Elliott Hughes | 80537bb | 2013-01-04 16:37:26 -0800 | [diff] [blame] | 228 | std::string descriptor(type.GetDescriptor()); |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 229 | for (size_t i = RegType::kRegTypeLastFixedLocation + 1; i < entries_.size(); i++) { |
| 230 | RegType* cur_entry = entries_[i]; |
| 231 | if (cur_entry->IsUnresolvedAndUninitializedReference() && |
| 232 | cur_entry->GetAllocationPc() == allocation_pc && |
| 233 | cur_entry->GetDescriptor() == descriptor) { |
| 234 | return *cur_entry; |
| 235 | } |
| 236 | } |
| 237 | entry = new RegType(RegType::kRegTypeUnresolvedAndUninitializedReference, |
| 238 | descriptor, allocation_pc, entries_.size()); |
| 239 | } else { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 240 | mirror::Class* klass = type.GetClass(); |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 241 | for (size_t i = RegType::kRegTypeLastFixedLocation + 1; i < entries_.size(); i++) { |
| 242 | RegType* cur_entry = entries_[i]; |
| 243 | if (cur_entry->IsUninitializedReference() && |
| 244 | cur_entry->GetAllocationPc() == allocation_pc && |
| 245 | cur_entry->GetClass() == klass) { |
| 246 | return *cur_entry; |
| 247 | } |
| 248 | } |
| 249 | entry = new RegType(RegType::kRegTypeUninitializedReference, |
| 250 | klass, allocation_pc, entries_.size()); |
| 251 | } |
| 252 | entries_.push_back(entry); |
| 253 | return *entry; |
| 254 | } |
| 255 | |
| 256 | const RegType& RegTypeCache::FromUninitialized(const RegType& uninit_type) { |
| 257 | RegType* entry; |
| 258 | if (uninit_type.IsUnresolvedTypes()) { |
Elliott Hughes | 80537bb | 2013-01-04 16:37:26 -0800 | [diff] [blame] | 259 | std::string descriptor(uninit_type.GetDescriptor()); |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 260 | for (size_t i = RegType::kRegTypeLastFixedLocation + 1; i < entries_.size(); i++) { |
| 261 | RegType* cur_entry = entries_[i]; |
| 262 | if (cur_entry->IsUnresolvedReference() && cur_entry->GetDescriptor() == descriptor) { |
| 263 | return *cur_entry; |
| 264 | } |
| 265 | } |
| 266 | entry = new RegType(RegType::kRegTypeUnresolvedReference, descriptor, 0, entries_.size()); |
| 267 | } else { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 268 | mirror::Class* klass = uninit_type.GetClass(); |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 269 | for (size_t i = RegType::kRegTypeLastFixedLocation + 1; i < entries_.size(); i++) { |
| 270 | RegType* cur_entry = entries_[i]; |
Ian Rogers | b490357 | 2012-10-11 11:52:56 -0700 | [diff] [blame] | 271 | if (cur_entry->IsPreciseReference() && cur_entry->GetClass() == klass) { |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 272 | return *cur_entry; |
| 273 | } |
| 274 | } |
Ian Rogers | b490357 | 2012-10-11 11:52:56 -0700 | [diff] [blame] | 275 | entry = new RegType(RegType::kRegTypePreciseReference, klass, 0, entries_.size()); |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 276 | } |
| 277 | entries_.push_back(entry); |
| 278 | return *entry; |
| 279 | } |
| 280 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 281 | const RegType& RegTypeCache::ByteConstant() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 282 | return FromCat1Const(std::numeric_limits<jbyte>::min(), false); |
| 283 | } |
| 284 | |
| 285 | const RegType& RegTypeCache::ShortConstant() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 286 | return FromCat1Const(std::numeric_limits<jshort>::min(), false); |
| 287 | } |
| 288 | |
| 289 | const RegType& RegTypeCache::IntConstant() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 290 | return FromCat1Const(std::numeric_limits<jint>::max(), false); |
| 291 | } |
| 292 | |
Ian Rogers | ad0b3a3 | 2012-04-16 14:50:24 -0700 | [diff] [blame] | 293 | const RegType& RegTypeCache::UninitializedThisArgument(const RegType& type) { |
| 294 | // TODO: implement descriptor version. |
| 295 | RegType* entry; |
| 296 | if (type.IsUnresolvedTypes()) { |
Elliott Hughes | 80537bb | 2013-01-04 16:37:26 -0800 | [diff] [blame] | 297 | std::string descriptor(type.GetDescriptor()); |
Ian Rogers | ad0b3a3 | 2012-04-16 14:50:24 -0700 | [diff] [blame] | 298 | for (size_t i = RegType::kRegTypeLastFixedLocation + 1; i < entries_.size(); i++) { |
| 299 | RegType* cur_entry = entries_[i]; |
| 300 | if (cur_entry->IsUnresolvedAndUninitializedThisReference() && |
| 301 | cur_entry->GetDescriptor() == descriptor) { |
| 302 | return *cur_entry; |
| 303 | } |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 304 | } |
Ian Rogers | ad0b3a3 | 2012-04-16 14:50:24 -0700 | [diff] [blame] | 305 | entry = new RegType(RegType::kRegTypeUnresolvedAndUninitializedThisReference, descriptor, 0, |
| 306 | entries_.size()); |
| 307 | } else { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 308 | mirror::Class* klass = type.GetClass(); |
Ian Rogers | ad0b3a3 | 2012-04-16 14:50:24 -0700 | [diff] [blame] | 309 | for (size_t i = RegType::kRegTypeLastFixedLocation + 1; i < entries_.size(); i++) { |
| 310 | RegType* cur_entry = entries_[i]; |
| 311 | if (cur_entry->IsUninitializedThisReference() && cur_entry->GetClass() == klass) { |
| 312 | return *cur_entry; |
| 313 | } |
| 314 | } |
| 315 | entry = new RegType(RegType::kRegTypeUninitializedThisReference, klass, 0, entries_.size()); |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 316 | } |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 317 | entries_.push_back(entry); |
| 318 | return *entry; |
| 319 | } |
| 320 | |
| 321 | const RegType& RegTypeCache::FromType(RegType::Type type) { |
| 322 | CHECK(type < RegType::kRegTypeReference); |
| 323 | switch (type) { |
Ian Rogers | b490357 | 2012-10-11 11:52:56 -0700 | [diff] [blame] | 324 | case RegType::kRegTypeBoolean: return From(type, NULL, "Z", true); |
| 325 | case RegType::kRegTypeByte: return From(type, NULL, "B", true); |
| 326 | case RegType::kRegTypeShort: return From(type, NULL, "S", true); |
| 327 | case RegType::kRegTypeChar: return From(type, NULL, "C", true); |
| 328 | case RegType::kRegTypeInteger: return From(type, NULL, "I", true); |
| 329 | case RegType::kRegTypeFloat: return From(type, NULL, "F", true); |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 330 | case RegType::kRegTypeLongLo: |
Ian Rogers | b490357 | 2012-10-11 11:52:56 -0700 | [diff] [blame] | 331 | case RegType::kRegTypeLongHi: return From(type, NULL, "J", true); |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 332 | case RegType::kRegTypeDoubleLo: |
Ian Rogers | b490357 | 2012-10-11 11:52:56 -0700 | [diff] [blame] | 333 | case RegType::kRegTypeDoubleHi: return From(type, NULL, "D", true); |
| 334 | default: return From(type, NULL, "", true); |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 335 | } |
| 336 | } |
| 337 | |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 338 | const RegType& RegTypeCache::FromCat1Const(int32_t value, bool precise) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 339 | RegType::Type wanted_type = |
| 340 | precise ? RegType::kRegTypePreciseConst : RegType::kRegTypeImpreciseConst; |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 341 | for (size_t i = RegType::kRegTypeLastFixedLocation + 1; i < entries_.size(); i++) { |
| 342 | RegType* cur_entry = entries_[i]; |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 343 | if (cur_entry->GetType() == wanted_type && cur_entry->ConstantValue() == value) { |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 344 | return *cur_entry; |
| 345 | } |
| 346 | } |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 347 | RegType* entry = new RegType(wanted_type, NULL, value, entries_.size()); |
| 348 | entries_.push_back(entry); |
| 349 | return *entry; |
| 350 | } |
| 351 | |
| 352 | const RegType& RegTypeCache::FromCat2ConstLo(int32_t value, bool precise) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 353 | RegType::Type wanted_type = |
| 354 | precise ? RegType::kRegTypePreciseConstLo : RegType::kRegTypeImpreciseConstLo; |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 355 | for (size_t i = RegType::kRegTypeLastFixedLocation + 1; i < entries_.size(); i++) { |
| 356 | RegType* cur_entry = entries_[i]; |
| 357 | if (cur_entry->GetType() == wanted_type && cur_entry->ConstantValueLo() == value) { |
| 358 | return *cur_entry; |
| 359 | } |
| 360 | } |
| 361 | RegType* entry = new RegType(wanted_type, NULL, value, entries_.size()); |
| 362 | entries_.push_back(entry); |
| 363 | return *entry; |
| 364 | } |
| 365 | |
| 366 | const RegType& RegTypeCache::FromCat2ConstHi(int32_t value, bool precise) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 367 | RegType::Type wanted_type = |
| 368 | precise ? RegType::kRegTypePreciseConstHi : RegType::kRegTypeImpreciseConstHi; |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 369 | for (size_t i = RegType::kRegTypeLastFixedLocation + 1; i < entries_.size(); i++) { |
| 370 | RegType* cur_entry = entries_[i]; |
| 371 | if (cur_entry->GetType() == wanted_type && cur_entry->ConstantValueHi() == value) { |
| 372 | return *cur_entry; |
| 373 | } |
| 374 | } |
| 375 | RegType* entry = new RegType(wanted_type, NULL, value, entries_.size()); |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 376 | entries_.push_back(entry); |
| 377 | return *entry; |
| 378 | } |
| 379 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 380 | const RegType& RegTypeCache::GetComponentType(const RegType& array, mirror::ClassLoader* loader) { |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 381 | CHECK(array.IsArrayTypes()); |
| 382 | if (array.IsUnresolvedTypes()) { |
Elliott Hughes | 80537bb | 2013-01-04 16:37:26 -0800 | [diff] [blame] | 383 | std::string descriptor(array.GetDescriptor()); |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 384 | std::string component(descriptor.substr(1, descriptor.size() - 1)); |
Ian Rogers | b490357 | 2012-10-11 11:52:56 -0700 | [diff] [blame] | 385 | return FromDescriptor(loader, component.c_str(), false); |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 386 | } else { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 387 | mirror::Class* klass = array.GetClass()->GetComponentType(); |
Ian Rogers | b490357 | 2012-10-11 11:52:56 -0700 | [diff] [blame] | 388 | return FromClass(klass, klass->IsFinal()); |
| 389 | } |
| 390 | } |
| 391 | |
| 392 | void RegTypeCache::Dump(std::ostream& os) { |
Ian Rogers | b490357 | 2012-10-11 11:52:56 -0700 | [diff] [blame] | 393 | for (size_t i = 0; i < entries_.size(); i++) { |
| 394 | RegType* cur_entry = entries_[i]; |
| 395 | if (cur_entry != NULL) { |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 396 | os << i << ": " << cur_entry->Dump() << "\n"; |
Ian Rogers | b490357 | 2012-10-11 11:52:56 -0700 | [diff] [blame] | 397 | } |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 398 | } |
| 399 | } |
| 400 | |
Elliott Hughes | a21039c | 2012-06-21 12:09:25 -0700 | [diff] [blame] | 401 | } // namespace verifier |
| 402 | } // namespace art |