sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 1 | // Copyright 2011 the V8 project authors. All rights reserved. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | #include "v8.h" |
| 29 | |
| 30 | #include "factory.h" |
| 31 | #include "hydrogen.h" |
| 32 | |
| 33 | #if V8_TARGET_ARCH_IA32 |
| 34 | #include "ia32/lithium-ia32.h" |
| 35 | #elif V8_TARGET_ARCH_X64 |
| 36 | #include "x64/lithium-x64.h" |
| 37 | #elif V8_TARGET_ARCH_ARM |
| 38 | #include "arm/lithium-arm.h" |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 39 | #elif V8_TARGET_ARCH_MIPS |
| 40 | #include "mips/lithium-mips.h" |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 41 | #else |
| 42 | #error Unsupported target architecture. |
| 43 | #endif |
| 44 | |
| 45 | namespace v8 { |
| 46 | namespace internal { |
| 47 | |
| 48 | #define DEFINE_COMPILE(type) \ |
| 49 | LInstruction* H##type::CompileToLithium(LChunkBuilder* builder) { \ |
| 50 | return builder->Do##type(this); \ |
| 51 | } |
| 52 | HYDROGEN_CONCRETE_INSTRUCTION_LIST(DEFINE_COMPILE) |
| 53 | #undef DEFINE_COMPILE |
| 54 | |
| 55 | |
| 56 | const char* Representation::Mnemonic() const { |
| 57 | switch (kind_) { |
| 58 | case kNone: return "v"; |
| 59 | case kTagged: return "t"; |
| 60 | case kDouble: return "d"; |
| 61 | case kInteger32: return "i"; |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 62 | case kExternal: return "x"; |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 63 | default: |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 64 | UNREACHABLE(); |
| 65 | return NULL; |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 70 | void HValue::AssumeRepresentation(Representation r) { |
| 71 | if (CheckFlag(kFlexibleRepresentation)) { |
| 72 | ChangeRepresentation(r); |
| 73 | // The representation of the value is dictated by type feedback and |
| 74 | // will not be changed later. |
| 75 | ClearFlag(kFlexibleRepresentation); |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 80 | static int32_t ConvertAndSetOverflow(int64_t result, bool* overflow) { |
| 81 | if (result > kMaxInt) { |
| 82 | *overflow = true; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 83 | return kMaxInt; |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 84 | } |
| 85 | if (result < kMinInt) { |
| 86 | *overflow = true; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 87 | return kMinInt; |
| 88 | } |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 89 | return static_cast<int32_t>(result); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 90 | } |
| 91 | |
| 92 | |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 93 | static int32_t AddWithoutOverflow(int32_t a, int32_t b, bool* overflow) { |
| 94 | int64_t result = static_cast<int64_t>(a) + static_cast<int64_t>(b); |
| 95 | return ConvertAndSetOverflow(result, overflow); |
| 96 | } |
| 97 | |
| 98 | |
| 99 | static int32_t SubWithoutOverflow(int32_t a, int32_t b, bool* overflow) { |
| 100 | int64_t result = static_cast<int64_t>(a) - static_cast<int64_t>(b); |
| 101 | return ConvertAndSetOverflow(result, overflow); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 102 | } |
| 103 | |
| 104 | |
| 105 | static int32_t MulWithoutOverflow(int32_t a, int32_t b, bool* overflow) { |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 106 | int64_t result = static_cast<int64_t>(a) * static_cast<int64_t>(b); |
| 107 | return ConvertAndSetOverflow(result, overflow); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 108 | } |
| 109 | |
| 110 | |
| 111 | int32_t Range::Mask() const { |
| 112 | if (lower_ == upper_) return lower_; |
| 113 | if (lower_ >= 0) { |
| 114 | int32_t res = 1; |
| 115 | while (res < upper_) { |
| 116 | res = (res << 1) | 1; |
| 117 | } |
| 118 | return res; |
| 119 | } |
| 120 | return 0xffffffff; |
| 121 | } |
| 122 | |
| 123 | |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 124 | void Range::AddConstant(int32_t value) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 125 | if (value == 0) return; |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 126 | bool may_overflow = false; // Overflow is ignored here. |
| 127 | lower_ = AddWithoutOverflow(lower_, value, &may_overflow); |
| 128 | upper_ = AddWithoutOverflow(upper_, value, &may_overflow); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 129 | Verify(); |
| 130 | } |
| 131 | |
| 132 | |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 133 | void Range::Intersect(Range* other) { |
| 134 | upper_ = Min(upper_, other->upper_); |
| 135 | lower_ = Max(lower_, other->lower_); |
| 136 | bool b = CanBeMinusZero() && other->CanBeMinusZero(); |
| 137 | set_can_be_minus_zero(b); |
| 138 | } |
| 139 | |
| 140 | |
| 141 | void Range::Union(Range* other) { |
| 142 | upper_ = Max(upper_, other->upper_); |
| 143 | lower_ = Min(lower_, other->lower_); |
| 144 | bool b = CanBeMinusZero() || other->CanBeMinusZero(); |
| 145 | set_can_be_minus_zero(b); |
| 146 | } |
| 147 | |
| 148 | |
| 149 | void Range::Sar(int32_t value) { |
| 150 | int32_t bits = value & 0x1F; |
| 151 | lower_ = lower_ >> bits; |
| 152 | upper_ = upper_ >> bits; |
| 153 | set_can_be_minus_zero(false); |
| 154 | } |
| 155 | |
| 156 | |
| 157 | void Range::Shl(int32_t value) { |
| 158 | int32_t bits = value & 0x1F; |
| 159 | int old_lower = lower_; |
| 160 | int old_upper = upper_; |
| 161 | lower_ = lower_ << bits; |
| 162 | upper_ = upper_ << bits; |
| 163 | if (old_lower != lower_ >> bits || old_upper != upper_ >> bits) { |
| 164 | upper_ = kMaxInt; |
| 165 | lower_ = kMinInt; |
| 166 | } |
| 167 | set_can_be_minus_zero(false); |
| 168 | } |
| 169 | |
| 170 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 171 | bool Range::AddAndCheckOverflow(Range* other) { |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 172 | bool may_overflow = false; |
| 173 | lower_ = AddWithoutOverflow(lower_, other->lower(), &may_overflow); |
| 174 | upper_ = AddWithoutOverflow(upper_, other->upper(), &may_overflow); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 175 | KeepOrder(); |
| 176 | Verify(); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 177 | return may_overflow; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 178 | } |
| 179 | |
| 180 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 181 | bool Range::SubAndCheckOverflow(Range* other) { |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 182 | bool may_overflow = false; |
| 183 | lower_ = SubWithoutOverflow(lower_, other->upper(), &may_overflow); |
| 184 | upper_ = SubWithoutOverflow(upper_, other->lower(), &may_overflow); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 185 | KeepOrder(); |
| 186 | Verify(); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 187 | return may_overflow; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 188 | } |
| 189 | |
| 190 | |
| 191 | void Range::KeepOrder() { |
| 192 | if (lower_ > upper_) { |
| 193 | int32_t tmp = lower_; |
| 194 | lower_ = upper_; |
| 195 | upper_ = tmp; |
| 196 | } |
| 197 | } |
| 198 | |
| 199 | |
| 200 | void Range::Verify() const { |
| 201 | ASSERT(lower_ <= upper_); |
| 202 | } |
| 203 | |
| 204 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 205 | bool Range::MulAndCheckOverflow(Range* other) { |
| 206 | bool may_overflow = false; |
| 207 | int v1 = MulWithoutOverflow(lower_, other->lower(), &may_overflow); |
| 208 | int v2 = MulWithoutOverflow(lower_, other->upper(), &may_overflow); |
| 209 | int v3 = MulWithoutOverflow(upper_, other->lower(), &may_overflow); |
| 210 | int v4 = MulWithoutOverflow(upper_, other->upper(), &may_overflow); |
| 211 | lower_ = Min(Min(v1, v2), Min(v3, v4)); |
| 212 | upper_ = Max(Max(v1, v2), Max(v3, v4)); |
| 213 | Verify(); |
| 214 | return may_overflow; |
| 215 | } |
| 216 | |
| 217 | |
| 218 | const char* HType::ToString() { |
| 219 | switch (type_) { |
| 220 | case kTagged: return "tagged"; |
| 221 | case kTaggedPrimitive: return "primitive"; |
| 222 | case kTaggedNumber: return "number"; |
| 223 | case kSmi: return "smi"; |
| 224 | case kHeapNumber: return "heap-number"; |
| 225 | case kString: return "string"; |
| 226 | case kBoolean: return "boolean"; |
| 227 | case kNonPrimitive: return "non-primitive"; |
| 228 | case kJSArray: return "array"; |
| 229 | case kJSObject: return "object"; |
| 230 | case kUninitialized: return "uninitialized"; |
| 231 | } |
| 232 | UNREACHABLE(); |
| 233 | return "Unreachable code"; |
| 234 | } |
| 235 | |
| 236 | |
| 237 | const char* HType::ToShortString() { |
| 238 | switch (type_) { |
| 239 | case kTagged: return "t"; |
| 240 | case kTaggedPrimitive: return "p"; |
| 241 | case kTaggedNumber: return "n"; |
| 242 | case kSmi: return "m"; |
| 243 | case kHeapNumber: return "h"; |
| 244 | case kString: return "s"; |
| 245 | case kBoolean: return "b"; |
| 246 | case kNonPrimitive: return "r"; |
| 247 | case kJSArray: return "a"; |
| 248 | case kJSObject: return "o"; |
| 249 | case kUninitialized: return "z"; |
| 250 | } |
| 251 | UNREACHABLE(); |
| 252 | return "Unreachable code"; |
| 253 | } |
| 254 | |
| 255 | |
| 256 | HType HType::TypeFromValue(Handle<Object> value) { |
| 257 | HType result = HType::Tagged(); |
| 258 | if (value->IsSmi()) { |
| 259 | result = HType::Smi(); |
| 260 | } else if (value->IsHeapNumber()) { |
| 261 | result = HType::HeapNumber(); |
| 262 | } else if (value->IsString()) { |
| 263 | result = HType::String(); |
| 264 | } else if (value->IsBoolean()) { |
| 265 | result = HType::Boolean(); |
| 266 | } else if (value->IsJSObject()) { |
| 267 | result = HType::JSObject(); |
| 268 | } else if (value->IsJSArray()) { |
| 269 | result = HType::JSArray(); |
| 270 | } |
| 271 | return result; |
| 272 | } |
| 273 | |
| 274 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 275 | bool HValue::IsDefinedAfter(HBasicBlock* other) const { |
| 276 | return block()->block_id() > other->block_id(); |
| 277 | } |
| 278 | |
| 279 | |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 280 | HUseIterator::HUseIterator(HUseListNode* head) : next_(head) { |
| 281 | Advance(); |
| 282 | } |
| 283 | |
| 284 | |
| 285 | void HUseIterator::Advance() { |
| 286 | current_ = next_; |
| 287 | if (current_ != NULL) { |
| 288 | next_ = current_->tail(); |
| 289 | value_ = current_->value(); |
| 290 | index_ = current_->index(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 291 | } |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 292 | } |
| 293 | |
| 294 | |
| 295 | int HValue::UseCount() const { |
| 296 | int count = 0; |
| 297 | for (HUseIterator it(uses()); !it.Done(); it.Advance()) ++count; |
| 298 | return count; |
| 299 | } |
| 300 | |
| 301 | |
| 302 | HUseListNode* HValue::RemoveUse(HValue* value, int index) { |
| 303 | HUseListNode* previous = NULL; |
| 304 | HUseListNode* current = use_list_; |
| 305 | while (current != NULL) { |
| 306 | if (current->value() == value && current->index() == index) { |
| 307 | if (previous == NULL) { |
| 308 | use_list_ = current->tail(); |
| 309 | } else { |
| 310 | previous->set_tail(current->tail()); |
| 311 | } |
| 312 | break; |
| 313 | } |
| 314 | |
| 315 | previous = current; |
| 316 | current = current->tail(); |
| 317 | } |
| 318 | |
| 319 | #ifdef DEBUG |
| 320 | // Do not reuse use list nodes in debug mode, zap them. |
| 321 | if (current != NULL) { |
| 322 | HUseListNode* temp = |
| 323 | new HUseListNode(current->value(), current->index(), NULL); |
| 324 | current->Zap(); |
| 325 | current = temp; |
| 326 | } |
| 327 | #endif |
| 328 | return current; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 329 | } |
| 330 | |
| 331 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 332 | bool HValue::Equals(HValue* other) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 333 | if (other->opcode() != opcode()) return false; |
| 334 | if (!other->representation().Equals(representation())) return false; |
| 335 | if (!other->type_.Equals(type_)) return false; |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 336 | if (other->flags() != flags()) return false; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 337 | if (OperandCount() != other->OperandCount()) return false; |
| 338 | for (int i = 0; i < OperandCount(); ++i) { |
| 339 | if (OperandAt(i)->id() != other->OperandAt(i)->id()) return false; |
| 340 | } |
| 341 | bool result = DataEquals(other); |
| 342 | ASSERT(!result || Hashcode() == other->Hashcode()); |
| 343 | return result; |
| 344 | } |
| 345 | |
| 346 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 347 | intptr_t HValue::Hashcode() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 348 | intptr_t result = opcode(); |
| 349 | int count = OperandCount(); |
| 350 | for (int i = 0; i < count; ++i) { |
| 351 | result = result * 19 + OperandAt(i)->id() + (result >> 7); |
| 352 | } |
| 353 | return result; |
| 354 | } |
| 355 | |
| 356 | |
ricow@chromium.org | dcebac0 | 2011-04-20 09:44:50 +0000 | [diff] [blame] | 357 | const char* HValue::Mnemonic() const { |
| 358 | switch (opcode()) { |
| 359 | #define MAKE_CASE(type) case k##type: return #type; |
| 360 | HYDROGEN_CONCRETE_INSTRUCTION_LIST(MAKE_CASE) |
| 361 | #undef MAKE_CASE |
| 362 | case kPhi: return "Phi"; |
| 363 | default: return ""; |
| 364 | } |
| 365 | } |
| 366 | |
| 367 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 368 | void HValue::SetOperandAt(int index, HValue* value) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 369 | RegisterUse(index, value); |
| 370 | InternalSetOperandAt(index, value); |
| 371 | } |
| 372 | |
| 373 | |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 374 | void HValue::DeleteAndReplaceWith(HValue* other) { |
| 375 | // We replace all uses first, so Delete can assert that there are none. |
| 376 | if (other != NULL) ReplaceAllUsesWith(other); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 377 | ASSERT(HasNoUses()); |
| 378 | ClearOperands(); |
| 379 | DeleteFromGraph(); |
| 380 | } |
| 381 | |
| 382 | |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 383 | void HValue::ReplaceAllUsesWith(HValue* other) { |
| 384 | while (use_list_ != NULL) { |
| 385 | HUseListNode* list_node = use_list_; |
| 386 | HValue* value = list_node->value(); |
| 387 | ASSERT(!value->block()->IsStartBlock()); |
| 388 | value->InternalSetOperandAt(list_node->index(), other); |
| 389 | use_list_ = list_node->tail(); |
| 390 | list_node->set_tail(other->use_list_); |
| 391 | other->use_list_ = list_node; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 392 | } |
| 393 | } |
| 394 | |
| 395 | |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 396 | void HValue::ClearOperands() { |
| 397 | for (int i = 0; i < OperandCount(); ++i) { |
| 398 | SetOperandAt(i, NULL); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 399 | } |
| 400 | } |
| 401 | |
| 402 | |
| 403 | void HValue::SetBlock(HBasicBlock* block) { |
| 404 | ASSERT(block_ == NULL || block == NULL); |
| 405 | block_ = block; |
| 406 | if (id_ == kNoNumber && block != NULL) { |
| 407 | id_ = block->graph()->GetNextValueID(this); |
| 408 | } |
| 409 | } |
| 410 | |
| 411 | |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 412 | void HValue::PrintTypeTo(StringStream* stream) { |
| 413 | if (!representation().IsTagged() || type().Equals(HType::Tagged())) return; |
| 414 | stream->Add(" type[%s]", type().ToString()); |
| 415 | } |
| 416 | |
| 417 | |
| 418 | void HValue::PrintRangeTo(StringStream* stream) { |
| 419 | if (range() == NULL || range()->IsMostGeneric()) return; |
| 420 | stream->Add(" range[%d,%d,m0=%d]", |
| 421 | range()->lower(), |
| 422 | range()->upper(), |
| 423 | static_cast<int>(range()->CanBeMinusZero())); |
| 424 | } |
| 425 | |
| 426 | |
| 427 | void HValue::PrintChangesTo(StringStream* stream) { |
| 428 | int changes_flags = (flags() & HValue::ChangesFlagsMask()); |
| 429 | if (changes_flags == 0) return; |
| 430 | stream->Add(" changes["); |
| 431 | if (changes_flags == AllSideEffects()) { |
| 432 | stream->Add("*"); |
| 433 | } else { |
| 434 | bool add_comma = false; |
| 435 | #define PRINT_DO(type) \ |
| 436 | if (changes_flags & (1 << kChanges##type)) { \ |
| 437 | if (add_comma) stream->Add(","); \ |
| 438 | add_comma = true; \ |
| 439 | stream->Add(#type); \ |
| 440 | } |
| 441 | GVN_FLAG_LIST(PRINT_DO); |
| 442 | #undef PRINT_DO |
| 443 | } |
| 444 | stream->Add("]"); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 445 | } |
| 446 | |
| 447 | |
| 448 | void HValue::PrintNameTo(StringStream* stream) { |
| 449 | stream->Add("%s%d", representation_.Mnemonic(), id()); |
| 450 | } |
| 451 | |
| 452 | |
| 453 | bool HValue::UpdateInferredType() { |
| 454 | HType type = CalculateInferredType(); |
| 455 | bool result = (!type.Equals(type_)); |
| 456 | type_ = type; |
| 457 | return result; |
| 458 | } |
| 459 | |
| 460 | |
| 461 | void HValue::RegisterUse(int index, HValue* new_value) { |
| 462 | HValue* old_value = OperandAt(index); |
| 463 | if (old_value == new_value) return; |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 464 | |
| 465 | HUseListNode* removed = NULL; |
| 466 | if (old_value != NULL) { |
| 467 | removed = old_value->RemoveUse(this, index); |
| 468 | } |
| 469 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 470 | if (new_value != NULL) { |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 471 | if (removed == NULL) { |
| 472 | new_value->use_list_ = |
| 473 | new HUseListNode(this, index, new_value->use_list_); |
| 474 | } else { |
| 475 | removed->set_tail(new_value->use_list_); |
| 476 | new_value->use_list_ = removed; |
| 477 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 478 | } |
| 479 | } |
| 480 | |
| 481 | |
| 482 | void HValue::AddNewRange(Range* r) { |
| 483 | if (!HasRange()) ComputeInitialRange(); |
| 484 | if (!HasRange()) range_ = new Range(); |
| 485 | ASSERT(HasRange()); |
| 486 | r->StackUpon(range_); |
| 487 | range_ = r; |
| 488 | } |
| 489 | |
| 490 | |
| 491 | void HValue::RemoveLastAddedRange() { |
| 492 | ASSERT(HasRange()); |
| 493 | ASSERT(range_->next() != NULL); |
| 494 | range_ = range_->next(); |
| 495 | } |
| 496 | |
| 497 | |
| 498 | void HValue::ComputeInitialRange() { |
| 499 | ASSERT(!HasRange()); |
| 500 | range_ = InferRange(); |
| 501 | ASSERT(HasRange()); |
| 502 | } |
| 503 | |
| 504 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 505 | void HInstruction::PrintTo(StringStream* stream) { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 506 | PrintMnemonicTo(stream); |
| 507 | PrintDataTo(stream); |
| 508 | PrintRangeTo(stream); |
| 509 | PrintChangesTo(stream); |
| 510 | PrintTypeTo(stream); |
| 511 | } |
| 512 | |
| 513 | |
| 514 | void HInstruction::PrintMnemonicTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 515 | stream->Add("%s", Mnemonic()); |
| 516 | if (HasSideEffects()) stream->Add("*"); |
| 517 | stream->Add(" "); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 518 | } |
| 519 | |
| 520 | |
| 521 | void HInstruction::Unlink() { |
| 522 | ASSERT(IsLinked()); |
| 523 | ASSERT(!IsControlInstruction()); // Must never move control instructions. |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 524 | ASSERT(!IsBlockEntry()); // Doesn't make sense to delete these. |
| 525 | ASSERT(previous_ != NULL); |
| 526 | previous_->next_ = next_; |
| 527 | if (next_ == NULL) { |
| 528 | ASSERT(block()->last() == this); |
| 529 | block()->set_last(previous_); |
| 530 | } else { |
| 531 | next_->previous_ = previous_; |
| 532 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 533 | clear_block(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 534 | } |
| 535 | |
| 536 | |
| 537 | void HInstruction::InsertBefore(HInstruction* next) { |
| 538 | ASSERT(!IsLinked()); |
| 539 | ASSERT(!next->IsBlockEntry()); |
| 540 | ASSERT(!IsControlInstruction()); |
| 541 | ASSERT(!next->block()->IsStartBlock()); |
| 542 | ASSERT(next->previous_ != NULL); |
| 543 | HInstruction* prev = next->previous(); |
| 544 | prev->next_ = this; |
| 545 | next->previous_ = this; |
| 546 | next_ = next; |
| 547 | previous_ = prev; |
| 548 | SetBlock(next->block()); |
| 549 | } |
| 550 | |
| 551 | |
| 552 | void HInstruction::InsertAfter(HInstruction* previous) { |
| 553 | ASSERT(!IsLinked()); |
| 554 | ASSERT(!previous->IsControlInstruction()); |
| 555 | ASSERT(!IsControlInstruction() || previous->next_ == NULL); |
| 556 | HBasicBlock* block = previous->block(); |
| 557 | // Never insert anything except constants into the start block after finishing |
| 558 | // it. |
| 559 | if (block->IsStartBlock() && block->IsFinished() && !IsConstant()) { |
| 560 | ASSERT(block->end()->SecondSuccessor() == NULL); |
| 561 | InsertAfter(block->end()->FirstSuccessor()->first()); |
| 562 | return; |
| 563 | } |
| 564 | |
| 565 | // If we're inserting after an instruction with side-effects that is |
| 566 | // followed by a simulate instruction, we need to insert after the |
| 567 | // simulate instruction instead. |
| 568 | HInstruction* next = previous->next_; |
| 569 | if (previous->HasSideEffects() && next != NULL) { |
| 570 | ASSERT(next->IsSimulate()); |
| 571 | previous = next; |
| 572 | next = previous->next_; |
| 573 | } |
| 574 | |
| 575 | previous_ = previous; |
| 576 | next_ = next; |
| 577 | SetBlock(block); |
| 578 | previous->next_ = this; |
| 579 | if (next != NULL) next->previous_ = this; |
| 580 | } |
| 581 | |
| 582 | |
| 583 | #ifdef DEBUG |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 584 | void HInstruction::Verify() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 585 | // Verify that input operands are defined before use. |
| 586 | HBasicBlock* cur_block = block(); |
| 587 | for (int i = 0; i < OperandCount(); ++i) { |
| 588 | HValue* other_operand = OperandAt(i); |
| 589 | HBasicBlock* other_block = other_operand->block(); |
| 590 | if (cur_block == other_block) { |
| 591 | if (!other_operand->IsPhi()) { |
| 592 | HInstruction* cur = cur_block->first(); |
| 593 | while (cur != NULL) { |
| 594 | ASSERT(cur != this); // We should reach other_operand before! |
| 595 | if (cur == other_operand) break; |
| 596 | cur = cur->next(); |
| 597 | } |
| 598 | // Must reach other operand in the same block! |
| 599 | ASSERT(cur == other_operand); |
| 600 | } |
| 601 | } else { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 602 | // If the following assert fires, you may have forgotten an |
| 603 | // AddInstruction. |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 604 | ASSERT(other_block->Dominates(cur_block)); |
| 605 | } |
| 606 | } |
| 607 | |
| 608 | // Verify that instructions that may have side-effects are followed |
| 609 | // by a simulate instruction. |
| 610 | if (HasSideEffects() && !IsOsrEntry()) { |
| 611 | ASSERT(next()->IsSimulate()); |
| 612 | } |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 613 | |
| 614 | // Verify that instructions that can be eliminated by GVN have overridden |
| 615 | // HValue::DataEquals. The default implementation is UNREACHABLE. We |
| 616 | // don't actually care whether DataEquals returns true or false here. |
| 617 | if (CheckFlag(kUseGVN)) DataEquals(this); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 618 | } |
| 619 | #endif |
| 620 | |
| 621 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 622 | void HUnaryCall::PrintDataTo(StringStream* stream) { |
| 623 | value()->PrintNameTo(stream); |
| 624 | stream->Add(" "); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 625 | stream->Add("#%d", argument_count()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 626 | } |
| 627 | |
| 628 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 629 | void HBinaryCall::PrintDataTo(StringStream* stream) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 630 | first()->PrintNameTo(stream); |
| 631 | stream->Add(" "); |
| 632 | second()->PrintNameTo(stream); |
| 633 | stream->Add(" "); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 634 | stream->Add("#%d", argument_count()); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 635 | } |
| 636 | |
| 637 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 638 | void HCallConstantFunction::PrintDataTo(StringStream* stream) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 639 | if (IsApplyFunction()) { |
| 640 | stream->Add("optimized apply "); |
| 641 | } else { |
| 642 | stream->Add("%o ", function()->shared()->DebugName()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 643 | } |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 644 | stream->Add("#%d", argument_count()); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 645 | } |
| 646 | |
| 647 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 648 | void HCallNamed::PrintDataTo(StringStream* stream) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 649 | stream->Add("%o ", *name()); |
| 650 | HUnaryCall::PrintDataTo(stream); |
| 651 | } |
| 652 | |
| 653 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 654 | void HCallGlobal::PrintDataTo(StringStream* stream) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 655 | stream->Add("%o ", *name()); |
| 656 | HUnaryCall::PrintDataTo(stream); |
| 657 | } |
| 658 | |
| 659 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 660 | void HCallKnownGlobal::PrintDataTo(StringStream* stream) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 661 | stream->Add("o ", target()->shared()->DebugName()); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 662 | stream->Add("#%d", argument_count()); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 663 | } |
| 664 | |
| 665 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 666 | void HCallRuntime::PrintDataTo(StringStream* stream) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 667 | stream->Add("%o ", *name()); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 668 | stream->Add("#%d", argument_count()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 669 | } |
| 670 | |
| 671 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 672 | void HClassOfTestAndBranch::PrintDataTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 673 | stream->Add("class_of_test("); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 674 | value()->PrintNameTo(stream); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 675 | stream->Add(", \"%o\")", *class_name()); |
| 676 | } |
| 677 | |
| 678 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 679 | void HAccessArgumentsAt::PrintDataTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 680 | arguments()->PrintNameTo(stream); |
| 681 | stream->Add("["); |
| 682 | index()->PrintNameTo(stream); |
| 683 | stream->Add("], length "); |
| 684 | length()->PrintNameTo(stream); |
| 685 | } |
| 686 | |
| 687 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 688 | void HControlInstruction::PrintDataTo(StringStream* stream) { |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 689 | stream->Add(" goto ("); |
| 690 | bool first_block = true; |
| 691 | for (HSuccessorIterator it(this); !it.Done(); it.Advance()) { |
| 692 | stream->Add(first_block ? "B%d" : ", B%d", it.Current()->block_id()); |
| 693 | first_block = false; |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 694 | } |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 695 | stream->Add(")"); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 696 | } |
| 697 | |
| 698 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 699 | void HUnaryControlInstruction::PrintDataTo(StringStream* stream) { |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 700 | value()->PrintNameTo(stream); |
| 701 | HControlInstruction::PrintDataTo(stream); |
| 702 | } |
| 703 | |
| 704 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 705 | void HReturn::PrintDataTo(StringStream* stream) { |
| 706 | value()->PrintNameTo(stream); |
| 707 | } |
| 708 | |
| 709 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 710 | void HCompareMap::PrintDataTo(StringStream* stream) { |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 711 | value()->PrintNameTo(stream); |
| 712 | stream->Add(" (%p)", *map()); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 713 | HControlInstruction::PrintDataTo(stream); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 714 | } |
| 715 | |
| 716 | |
| 717 | const char* HUnaryMathOperation::OpName() const { |
| 718 | switch (op()) { |
| 719 | case kMathFloor: return "floor"; |
| 720 | case kMathRound: return "round"; |
| 721 | case kMathCeil: return "ceil"; |
| 722 | case kMathAbs: return "abs"; |
| 723 | case kMathLog: return "log"; |
| 724 | case kMathSin: return "sin"; |
| 725 | case kMathCos: return "cos"; |
| 726 | case kMathTan: return "tan"; |
| 727 | case kMathASin: return "asin"; |
| 728 | case kMathACos: return "acos"; |
| 729 | case kMathATan: return "atan"; |
| 730 | case kMathExp: return "exp"; |
| 731 | case kMathSqrt: return "sqrt"; |
| 732 | default: break; |
| 733 | } |
| 734 | return "(unknown operation)"; |
| 735 | } |
| 736 | |
| 737 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 738 | void HUnaryMathOperation::PrintDataTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 739 | const char* name = OpName(); |
| 740 | stream->Add("%s ", name); |
| 741 | value()->PrintNameTo(stream); |
| 742 | } |
| 743 | |
| 744 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 745 | void HUnaryOperation::PrintDataTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 746 | value()->PrintNameTo(stream); |
| 747 | } |
| 748 | |
| 749 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 750 | void HHasInstanceTypeAndBranch::PrintDataTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 751 | value()->PrintNameTo(stream); |
| 752 | switch (from_) { |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 753 | case FIRST_JS_RECEIVER_TYPE: |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 754 | if (to_ == LAST_TYPE) stream->Add(" spec_object"); |
| 755 | break; |
| 756 | case JS_REGEXP_TYPE: |
| 757 | if (to_ == JS_REGEXP_TYPE) stream->Add(" reg_exp"); |
| 758 | break; |
| 759 | case JS_ARRAY_TYPE: |
| 760 | if (to_ == JS_ARRAY_TYPE) stream->Add(" array"); |
| 761 | break; |
| 762 | case JS_FUNCTION_TYPE: |
| 763 | if (to_ == JS_FUNCTION_TYPE) stream->Add(" function"); |
| 764 | break; |
| 765 | default: |
| 766 | break; |
| 767 | } |
| 768 | } |
| 769 | |
| 770 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 771 | void HTypeofIsAndBranch::PrintDataTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 772 | value()->PrintNameTo(stream); |
| 773 | stream->Add(" == "); |
| 774 | stream->Add(type_literal_->ToAsciiVector()); |
| 775 | } |
| 776 | |
| 777 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 778 | void HChange::PrintDataTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 779 | HUnaryOperation::PrintDataTo(stream); |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 780 | stream->Add(" %s to %s", from_.Mnemonic(), to().Mnemonic()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 781 | |
| 782 | if (CanTruncateToInt32()) stream->Add(" truncating-int32"); |
| 783 | if (CheckFlag(kBailoutOnMinusZero)) stream->Add(" -0?"); |
| 784 | } |
| 785 | |
| 786 | |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 787 | HValue* HCheckInstanceType::Canonicalize() { |
| 788 | if (check_ == IS_STRING && |
| 789 | !value()->type().IsUninitialized() && |
| 790 | value()->type().IsString()) { |
| 791 | return NULL; |
| 792 | } |
| 793 | if (check_ == IS_SYMBOL && |
| 794 | value()->IsConstant() && |
| 795 | HConstant::cast(value())->handle()->IsSymbol()) { |
| 796 | return NULL; |
| 797 | } |
| 798 | return this; |
| 799 | } |
| 800 | |
| 801 | |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 802 | void HCheckInstanceType::GetCheckInterval(InstanceType* first, |
| 803 | InstanceType* last) { |
| 804 | ASSERT(is_interval_check()); |
| 805 | switch (check_) { |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 806 | case IS_SPEC_OBJECT: |
| 807 | *first = FIRST_SPEC_OBJECT_TYPE; |
| 808 | *last = LAST_SPEC_OBJECT_TYPE; |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 809 | return; |
| 810 | case IS_JS_ARRAY: |
| 811 | *first = *last = JS_ARRAY_TYPE; |
| 812 | return; |
| 813 | default: |
| 814 | UNREACHABLE(); |
| 815 | } |
| 816 | } |
| 817 | |
| 818 | |
| 819 | void HCheckInstanceType::GetCheckMaskAndTag(uint8_t* mask, uint8_t* tag) { |
| 820 | ASSERT(!is_interval_check()); |
| 821 | switch (check_) { |
| 822 | case IS_STRING: |
| 823 | *mask = kIsNotStringMask; |
| 824 | *tag = kStringTag; |
| 825 | return; |
| 826 | case IS_SYMBOL: |
| 827 | *mask = kIsSymbolMask; |
| 828 | *tag = kSymbolTag; |
| 829 | return; |
| 830 | default: |
| 831 | UNREACHABLE(); |
| 832 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 833 | } |
| 834 | |
| 835 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 836 | void HCheckMap::PrintDataTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 837 | value()->PrintNameTo(stream); |
| 838 | stream->Add(" %p", *map()); |
| 839 | } |
| 840 | |
| 841 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 842 | void HCheckFunction::PrintDataTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 843 | value()->PrintNameTo(stream); |
| 844 | stream->Add(" %p", *target()); |
| 845 | } |
| 846 | |
| 847 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 848 | void HCallStub::PrintDataTo(StringStream* stream) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 849 | stream->Add("%s ", |
| 850 | CodeStub::MajorName(major_key_, false)); |
| 851 | HUnaryCall::PrintDataTo(stream); |
| 852 | } |
| 853 | |
| 854 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 855 | void HInstanceOf::PrintDataTo(StringStream* stream) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 856 | left()->PrintNameTo(stream); |
| 857 | stream->Add(" "); |
| 858 | right()->PrintNameTo(stream); |
| 859 | stream->Add(" "); |
| 860 | context()->PrintNameTo(stream); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 861 | } |
| 862 | |
| 863 | |
| 864 | Range* HValue::InferRange() { |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame^] | 865 | if (representation().IsTagged()) { |
| 866 | // Tagged values are always in int32 range when converted to integer, |
| 867 | // but they can contain -0. |
| 868 | Range* result = new Range(); |
| 869 | result->set_can_be_minus_zero(true); |
| 870 | return result; |
| 871 | } else if (representation().IsNone()) { |
| 872 | return NULL; |
| 873 | } else { |
| 874 | // Untagged integer32 cannot be -0 and we don't compute ranges for |
| 875 | // untagged doubles. |
| 876 | return new Range(); |
| 877 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 878 | } |
| 879 | |
| 880 | |
| 881 | Range* HConstant::InferRange() { |
| 882 | if (has_int32_value_) { |
| 883 | Range* result = new Range(int32_value_, int32_value_); |
| 884 | result->set_can_be_minus_zero(false); |
| 885 | return result; |
| 886 | } |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 887 | return HValue::InferRange(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 888 | } |
| 889 | |
| 890 | |
| 891 | Range* HPhi::InferRange() { |
| 892 | if (representation().IsInteger32()) { |
| 893 | if (block()->IsLoopHeader()) { |
| 894 | Range* range = new Range(kMinInt, kMaxInt); |
| 895 | return range; |
| 896 | } else { |
| 897 | Range* range = OperandAt(0)->range()->Copy(); |
| 898 | for (int i = 1; i < OperandCount(); ++i) { |
| 899 | range->Union(OperandAt(i)->range()); |
| 900 | } |
| 901 | return range; |
| 902 | } |
| 903 | } else { |
| 904 | return HValue::InferRange(); |
| 905 | } |
| 906 | } |
| 907 | |
| 908 | |
| 909 | Range* HAdd::InferRange() { |
| 910 | if (representation().IsInteger32()) { |
| 911 | Range* a = left()->range(); |
| 912 | Range* b = right()->range(); |
| 913 | Range* res = a->Copy(); |
| 914 | if (!res->AddAndCheckOverflow(b)) { |
| 915 | ClearFlag(kCanOverflow); |
| 916 | } |
| 917 | bool m0 = a->CanBeMinusZero() && b->CanBeMinusZero(); |
| 918 | res->set_can_be_minus_zero(m0); |
| 919 | return res; |
| 920 | } else { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 921 | return HValue::InferRange(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 922 | } |
| 923 | } |
| 924 | |
| 925 | |
| 926 | Range* HSub::InferRange() { |
| 927 | if (representation().IsInteger32()) { |
| 928 | Range* a = left()->range(); |
| 929 | Range* b = right()->range(); |
| 930 | Range* res = a->Copy(); |
| 931 | if (!res->SubAndCheckOverflow(b)) { |
| 932 | ClearFlag(kCanOverflow); |
| 933 | } |
| 934 | res->set_can_be_minus_zero(a->CanBeMinusZero() && b->CanBeZero()); |
| 935 | return res; |
| 936 | } else { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 937 | return HValue::InferRange(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 938 | } |
| 939 | } |
| 940 | |
| 941 | |
| 942 | Range* HMul::InferRange() { |
| 943 | if (representation().IsInteger32()) { |
| 944 | Range* a = left()->range(); |
| 945 | Range* b = right()->range(); |
| 946 | Range* res = a->Copy(); |
| 947 | if (!res->MulAndCheckOverflow(b)) { |
| 948 | ClearFlag(kCanOverflow); |
| 949 | } |
| 950 | bool m0 = (a->CanBeZero() && b->CanBeNegative()) || |
| 951 | (a->CanBeNegative() && b->CanBeZero()); |
| 952 | res->set_can_be_minus_zero(m0); |
| 953 | return res; |
| 954 | } else { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 955 | return HValue::InferRange(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 956 | } |
| 957 | } |
| 958 | |
| 959 | |
| 960 | Range* HDiv::InferRange() { |
| 961 | if (representation().IsInteger32()) { |
| 962 | Range* result = new Range(); |
| 963 | if (left()->range()->CanBeMinusZero()) { |
| 964 | result->set_can_be_minus_zero(true); |
| 965 | } |
| 966 | |
| 967 | if (left()->range()->CanBeZero() && right()->range()->CanBeNegative()) { |
| 968 | result->set_can_be_minus_zero(true); |
| 969 | } |
| 970 | |
| 971 | if (right()->range()->Includes(-1) && left()->range()->Includes(kMinInt)) { |
| 972 | SetFlag(HValue::kCanOverflow); |
| 973 | } |
| 974 | |
| 975 | if (!right()->range()->CanBeZero()) { |
| 976 | ClearFlag(HValue::kCanBeDivByZero); |
| 977 | } |
| 978 | return result; |
| 979 | } else { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 980 | return HValue::InferRange(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 981 | } |
| 982 | } |
| 983 | |
| 984 | |
| 985 | Range* HMod::InferRange() { |
| 986 | if (representation().IsInteger32()) { |
| 987 | Range* a = left()->range(); |
| 988 | Range* result = new Range(); |
| 989 | if (a->CanBeMinusZero() || a->CanBeNegative()) { |
| 990 | result->set_can_be_minus_zero(true); |
| 991 | } |
| 992 | if (!right()->range()->CanBeZero()) { |
| 993 | ClearFlag(HValue::kCanBeDivByZero); |
| 994 | } |
| 995 | return result; |
| 996 | } else { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 997 | return HValue::InferRange(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 998 | } |
| 999 | } |
| 1000 | |
| 1001 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1002 | void HPhi::PrintTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1003 | stream->Add("["); |
| 1004 | for (int i = 0; i < OperandCount(); ++i) { |
| 1005 | HValue* value = OperandAt(i); |
| 1006 | stream->Add(" "); |
| 1007 | value->PrintNameTo(stream); |
| 1008 | stream->Add(" "); |
| 1009 | } |
| 1010 | stream->Add(" uses%d_%di_%dd_%dt]", |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 1011 | UseCount(), |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1012 | int32_non_phi_uses() + int32_indirect_uses(), |
| 1013 | double_non_phi_uses() + double_indirect_uses(), |
| 1014 | tagged_non_phi_uses() + tagged_indirect_uses()); |
| 1015 | } |
| 1016 | |
| 1017 | |
| 1018 | void HPhi::AddInput(HValue* value) { |
| 1019 | inputs_.Add(NULL); |
| 1020 | SetOperandAt(OperandCount() - 1, value); |
| 1021 | // Mark phis that may have 'arguments' directly or indirectly as an operand. |
| 1022 | if (!CheckFlag(kIsArguments) && value->CheckFlag(kIsArguments)) { |
| 1023 | SetFlag(kIsArguments); |
| 1024 | } |
| 1025 | } |
| 1026 | |
| 1027 | |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 1028 | bool HPhi::HasRealUses() { |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 1029 | for (HUseIterator it(uses()); !it.Done(); it.Advance()) { |
| 1030 | if (!it.value()->IsPhi()) return true; |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 1031 | } |
| 1032 | return false; |
| 1033 | } |
| 1034 | |
| 1035 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1036 | HValue* HPhi::GetRedundantReplacement() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1037 | HValue* candidate = NULL; |
| 1038 | int count = OperandCount(); |
| 1039 | int position = 0; |
| 1040 | while (position < count && candidate == NULL) { |
| 1041 | HValue* current = OperandAt(position++); |
| 1042 | if (current != this) candidate = current; |
| 1043 | } |
| 1044 | while (position < count) { |
| 1045 | HValue* current = OperandAt(position++); |
| 1046 | if (current != this && current != candidate) return NULL; |
| 1047 | } |
| 1048 | ASSERT(candidate != this); |
| 1049 | return candidate; |
| 1050 | } |
| 1051 | |
| 1052 | |
| 1053 | void HPhi::DeleteFromGraph() { |
| 1054 | ASSERT(block() != NULL); |
| 1055 | block()->RemovePhi(this); |
| 1056 | ASSERT(block() == NULL); |
| 1057 | } |
| 1058 | |
| 1059 | |
| 1060 | void HPhi::InitRealUses(int phi_id) { |
| 1061 | // Initialize real uses. |
| 1062 | phi_id_ = phi_id; |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 1063 | for (HUseIterator it(uses()); !it.Done(); it.Advance()) { |
| 1064 | HValue* value = it.value(); |
| 1065 | if (!value->IsPhi()) { |
| 1066 | Representation rep = value->RequiredInputRepresentation(it.index()); |
| 1067 | ++non_phi_uses_[rep.kind()]; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1068 | } |
| 1069 | } |
| 1070 | } |
| 1071 | |
| 1072 | |
| 1073 | void HPhi::AddNonPhiUsesFrom(HPhi* other) { |
| 1074 | for (int i = 0; i < Representation::kNumRepresentations; i++) { |
| 1075 | indirect_uses_[i] += other->non_phi_uses_[i]; |
| 1076 | } |
| 1077 | } |
| 1078 | |
| 1079 | |
| 1080 | void HPhi::AddIndirectUsesTo(int* dest) { |
| 1081 | for (int i = 0; i < Representation::kNumRepresentations; i++) { |
| 1082 | dest[i] += indirect_uses_[i]; |
| 1083 | } |
| 1084 | } |
| 1085 | |
| 1086 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1087 | void HSimulate::PrintDataTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1088 | stream->Add("id=%d ", ast_id()); |
| 1089 | if (pop_count_ > 0) stream->Add("pop %d", pop_count_); |
| 1090 | if (values_.length() > 0) { |
| 1091 | if (pop_count_ > 0) stream->Add(" /"); |
| 1092 | for (int i = 0; i < values_.length(); ++i) { |
| 1093 | if (!HasAssignedIndexAt(i)) { |
| 1094 | stream->Add(" push "); |
| 1095 | } else { |
| 1096 | stream->Add(" var[%d] = ", GetAssignedIndexAt(i)); |
| 1097 | } |
| 1098 | values_[i]->PrintNameTo(stream); |
| 1099 | } |
| 1100 | } |
| 1101 | } |
| 1102 | |
| 1103 | |
jkummerow@chromium.org | e297f59 | 2011-06-08 10:05:15 +0000 | [diff] [blame] | 1104 | void HDeoptimize::PrintDataTo(StringStream* stream) { |
| 1105 | if (OperandCount() == 0) return; |
| 1106 | OperandAt(0)->PrintNameTo(stream); |
| 1107 | for (int i = 1; i < OperandCount(); ++i) { |
| 1108 | stream->Add(" "); |
| 1109 | OperandAt(i)->PrintNameTo(stream); |
| 1110 | } |
| 1111 | } |
| 1112 | |
| 1113 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1114 | void HEnterInlined::PrintDataTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1115 | SmartPointer<char> name = function()->debug_name()->ToCString(); |
| 1116 | stream->Add("%s, id=%d", *name, function()->id()); |
| 1117 | } |
| 1118 | |
| 1119 | |
| 1120 | HConstant::HConstant(Handle<Object> handle, Representation r) |
| 1121 | : handle_(handle), |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1122 | has_int32_value_(false), |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1123 | has_double_value_(false), |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 1124 | int32_value_(0), |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1125 | double_value_(0) { |
| 1126 | set_representation(r); |
| 1127 | SetFlag(kUseGVN); |
| 1128 | if (handle_->IsNumber()) { |
| 1129 | double n = handle_->Number(); |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 1130 | double roundtrip_value = static_cast<double>(static_cast<int32_t>(n)); |
| 1131 | has_int32_value_ = BitCast<int64_t>(roundtrip_value) == BitCast<int64_t>(n); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1132 | if (has_int32_value_) int32_value_ = static_cast<int32_t>(n); |
| 1133 | double_value_ = n; |
| 1134 | has_double_value_ = true; |
| 1135 | } |
| 1136 | } |
| 1137 | |
| 1138 | |
| 1139 | HConstant* HConstant::CopyToRepresentation(Representation r) const { |
| 1140 | if (r.IsInteger32() && !has_int32_value_) return NULL; |
| 1141 | if (r.IsDouble() && !has_double_value_) return NULL; |
| 1142 | return new HConstant(handle_, r); |
| 1143 | } |
| 1144 | |
| 1145 | |
| 1146 | HConstant* HConstant::CopyToTruncatedInt32() const { |
| 1147 | if (!has_double_value_) return NULL; |
| 1148 | int32_t truncated = NumberToInt32(*handle_); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1149 | return new HConstant(FACTORY->NewNumberFromInt(truncated), |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1150 | Representation::Integer32()); |
| 1151 | } |
| 1152 | |
| 1153 | |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 1154 | bool HConstant::ToBoolean() const { |
| 1155 | // Converts the constant's boolean value according to |
| 1156 | // ECMAScript section 9.2 ToBoolean conversion. |
| 1157 | if (HasInteger32Value()) return Integer32Value() != 0; |
| 1158 | if (HasDoubleValue()) { |
| 1159 | double v = DoubleValue(); |
| 1160 | return v != 0 && !isnan(v); |
| 1161 | } |
| 1162 | if (handle()->IsTrue()) return true; |
| 1163 | if (handle()->IsFalse()) return false; |
| 1164 | if (handle()->IsUndefined()) return false; |
| 1165 | if (handle()->IsNull()) return false; |
| 1166 | if (handle()->IsString() && |
| 1167 | String::cast(*handle())->length() == 0) return false; |
| 1168 | return true; |
| 1169 | } |
| 1170 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1171 | void HConstant::PrintDataTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1172 | handle()->ShortPrint(stream); |
| 1173 | } |
| 1174 | |
| 1175 | |
| 1176 | bool HArrayLiteral::IsCopyOnWrite() const { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1177 | return constant_elements()->map() == HEAP->fixed_cow_array_map(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1178 | } |
| 1179 | |
| 1180 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1181 | void HBinaryOperation::PrintDataTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1182 | left()->PrintNameTo(stream); |
| 1183 | stream->Add(" "); |
| 1184 | right()->PrintNameTo(stream); |
| 1185 | if (CheckFlag(kCanOverflow)) stream->Add(" !"); |
| 1186 | if (CheckFlag(kBailoutOnMinusZero)) stream->Add(" -0?"); |
| 1187 | } |
| 1188 | |
| 1189 | |
| 1190 | Range* HBitAnd::InferRange() { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 1191 | int32_t left_mask = (left()->range() != NULL) |
| 1192 | ? left()->range()->Mask() |
| 1193 | : 0xffffffff; |
| 1194 | int32_t right_mask = (right()->range() != NULL) |
| 1195 | ? right()->range()->Mask() |
| 1196 | : 0xffffffff; |
| 1197 | int32_t result_mask = left_mask & right_mask; |
| 1198 | return (result_mask >= 0) |
| 1199 | ? new Range(0, result_mask) |
| 1200 | : HValue::InferRange(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1201 | } |
| 1202 | |
| 1203 | |
| 1204 | Range* HBitOr::InferRange() { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 1205 | int32_t left_mask = (left()->range() != NULL) |
| 1206 | ? left()->range()->Mask() |
| 1207 | : 0xffffffff; |
| 1208 | int32_t right_mask = (right()->range() != NULL) |
| 1209 | ? right()->range()->Mask() |
| 1210 | : 0xffffffff; |
| 1211 | int32_t result_mask = left_mask | right_mask; |
| 1212 | return (result_mask >= 0) |
| 1213 | ? new Range(0, result_mask) |
| 1214 | : HValue::InferRange(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1215 | } |
| 1216 | |
| 1217 | |
| 1218 | Range* HSar::InferRange() { |
| 1219 | if (right()->IsConstant()) { |
| 1220 | HConstant* c = HConstant::cast(right()); |
| 1221 | if (c->HasInteger32Value()) { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 1222 | Range* result = (left()->range() != NULL) |
| 1223 | ? left()->range()->Copy() |
| 1224 | : new Range(); |
| 1225 | result->Sar(c->Integer32Value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1226 | return result; |
| 1227 | } |
| 1228 | } |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 1229 | return HValue::InferRange(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1230 | } |
| 1231 | |
| 1232 | |
ricow@chromium.org | 2c99e28 | 2011-07-28 09:15:17 +0000 | [diff] [blame] | 1233 | Range* HShr::InferRange() { |
| 1234 | if (right()->IsConstant()) { |
| 1235 | HConstant* c = HConstant::cast(right()); |
| 1236 | if (c->HasInteger32Value()) { |
| 1237 | int shift_count = c->Integer32Value() & 0x1f; |
| 1238 | if (left()->range()->CanBeNegative()) { |
| 1239 | // Only compute bounds if the result always fits into an int32. |
| 1240 | return (shift_count >= 1) |
| 1241 | ? new Range(0, static_cast<uint32_t>(0xffffffff) >> shift_count) |
| 1242 | : new Range(); |
| 1243 | } else { |
| 1244 | // For positive inputs we can use the >> operator. |
| 1245 | Range* result = (left()->range() != NULL) |
| 1246 | ? left()->range()->Copy() |
| 1247 | : new Range(); |
| 1248 | result->Sar(c->Integer32Value()); |
| 1249 | return result; |
| 1250 | } |
| 1251 | } |
| 1252 | } |
| 1253 | return HValue::InferRange(); |
| 1254 | } |
| 1255 | |
| 1256 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1257 | Range* HShl::InferRange() { |
| 1258 | if (right()->IsConstant()) { |
| 1259 | HConstant* c = HConstant::cast(right()); |
| 1260 | if (c->HasInteger32Value()) { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 1261 | Range* result = (left()->range() != NULL) |
| 1262 | ? left()->range()->Copy() |
| 1263 | : new Range(); |
| 1264 | result->Shl(c->Integer32Value()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1265 | return result; |
| 1266 | } |
| 1267 | } |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 1268 | return HValue::InferRange(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1269 | } |
| 1270 | |
| 1271 | |
| 1272 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 1273 | void HCompareGeneric::PrintDataTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1274 | stream->Add(Token::Name(token())); |
| 1275 | stream->Add(" "); |
| 1276 | HBinaryOperation::PrintDataTo(stream); |
| 1277 | } |
| 1278 | |
| 1279 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 1280 | void HCompareIDAndBranch::PrintDataTo(StringStream* stream) { |
| 1281 | stream->Add(Token::Name(token())); |
| 1282 | stream->Add(" "); |
| 1283 | left()->PrintNameTo(stream); |
| 1284 | stream->Add(" "); |
| 1285 | right()->PrintNameTo(stream); |
| 1286 | } |
| 1287 | |
| 1288 | |
| 1289 | void HCompareIDAndBranch::SetInputRepresentation(Representation r) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1290 | input_representation_ = r; |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 1291 | if (r.IsDouble()) { |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1292 | SetFlag(kDeoptimizeOnUndefined); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1293 | } else { |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 1294 | ASSERT(r.IsInteger32()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1295 | } |
| 1296 | } |
| 1297 | |
| 1298 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1299 | void HParameter::PrintDataTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1300 | stream->Add("%u", index()); |
| 1301 | } |
| 1302 | |
| 1303 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1304 | void HLoadNamedField::PrintDataTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1305 | object()->PrintNameTo(stream); |
| 1306 | stream->Add(" @%d%s", offset(), is_in_object() ? "[in-object]" : ""); |
| 1307 | } |
| 1308 | |
| 1309 | |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 1310 | HLoadNamedFieldPolymorphic::HLoadNamedFieldPolymorphic(HValue* context, |
| 1311 | HValue* object, |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1312 | ZoneMapList* types, |
| 1313 | Handle<String> name) |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 1314 | : types_(Min(types->length(), kMaxLoadPolymorphism)), |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1315 | name_(name), |
| 1316 | need_generic_(false) { |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 1317 | SetOperandAt(0, context); |
| 1318 | SetOperandAt(1, object); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1319 | set_representation(Representation::Tagged()); |
| 1320 | SetFlag(kDependsOnMaps); |
| 1321 | for (int i = 0; |
| 1322 | i < types->length() && types_.length() < kMaxLoadPolymorphism; |
| 1323 | ++i) { |
| 1324 | Handle<Map> map = types->at(i); |
| 1325 | LookupResult lookup; |
| 1326 | map->LookupInDescriptors(NULL, *name, &lookup); |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 1327 | if (lookup.IsProperty()) { |
| 1328 | switch (lookup.type()) { |
| 1329 | case FIELD: { |
| 1330 | int index = lookup.GetLocalFieldIndexFromMap(*map); |
| 1331 | if (index < 0) { |
| 1332 | SetFlag(kDependsOnInobjectFields); |
| 1333 | } else { |
| 1334 | SetFlag(kDependsOnBackingStoreFields); |
| 1335 | } |
| 1336 | types_.Add(types->at(i)); |
| 1337 | break; |
| 1338 | } |
| 1339 | case CONSTANT_FUNCTION: |
| 1340 | types_.Add(types->at(i)); |
| 1341 | break; |
| 1342 | default: |
| 1343 | break; |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1344 | } |
| 1345 | } |
| 1346 | } |
| 1347 | |
| 1348 | if (types_.length() == types->length() && FLAG_deoptimize_uncommon_cases) { |
| 1349 | SetFlag(kUseGVN); |
| 1350 | } else { |
| 1351 | SetAllSideEffects(); |
| 1352 | need_generic_ = true; |
| 1353 | } |
| 1354 | } |
| 1355 | |
| 1356 | |
| 1357 | bool HLoadNamedFieldPolymorphic::DataEquals(HValue* value) { |
| 1358 | HLoadNamedFieldPolymorphic* other = HLoadNamedFieldPolymorphic::cast(value); |
| 1359 | if (types_.length() != other->types()->length()) return false; |
| 1360 | if (!name_.is_identical_to(other->name())) return false; |
| 1361 | if (need_generic_ != other->need_generic_) return false; |
| 1362 | for (int i = 0; i < types_.length(); i++) { |
| 1363 | bool found = false; |
| 1364 | for (int j = 0; j < types_.length(); j++) { |
| 1365 | if (types_.at(j).is_identical_to(other->types()->at(i))) { |
| 1366 | found = true; |
| 1367 | break; |
| 1368 | } |
| 1369 | } |
| 1370 | if (!found) return false; |
| 1371 | } |
| 1372 | return true; |
| 1373 | } |
| 1374 | |
| 1375 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1376 | void HLoadKeyedFastElement::PrintDataTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1377 | object()->PrintNameTo(stream); |
| 1378 | stream->Add("["); |
| 1379 | key()->PrintNameTo(stream); |
| 1380 | stream->Add("]"); |
| 1381 | } |
| 1382 | |
| 1383 | |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 1384 | bool HLoadKeyedFastElement::RequiresHoleCheck() const { |
| 1385 | for (HUseIterator it(uses()); !it.Done(); it.Advance()) { |
| 1386 | HValue* use = it.value(); |
| 1387 | if (!use->IsChange()) return true; |
| 1388 | } |
| 1389 | return false; |
| 1390 | } |
| 1391 | |
| 1392 | |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 1393 | void HLoadKeyedFastDoubleElement::PrintDataTo(StringStream* stream) { |
| 1394 | elements()->PrintNameTo(stream); |
| 1395 | stream->Add("["); |
| 1396 | key()->PrintNameTo(stream); |
| 1397 | stream->Add("]"); |
| 1398 | } |
| 1399 | |
| 1400 | |
| 1401 | bool HLoadKeyedFastDoubleElement::RequiresHoleCheck() const { |
| 1402 | return true; |
| 1403 | } |
| 1404 | |
| 1405 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1406 | void HLoadKeyedGeneric::PrintDataTo(StringStream* stream) { |
| 1407 | object()->PrintNameTo(stream); |
| 1408 | stream->Add("["); |
| 1409 | key()->PrintNameTo(stream); |
| 1410 | stream->Add("]"); |
| 1411 | } |
| 1412 | |
| 1413 | |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1414 | void HLoadKeyedSpecializedArrayElement::PrintDataTo( |
| 1415 | StringStream* stream) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 1416 | external_pointer()->PrintNameTo(stream); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1417 | stream->Add("."); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1418 | switch (elements_kind()) { |
| 1419 | case JSObject::EXTERNAL_BYTE_ELEMENTS: |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1420 | stream->Add("byte"); |
| 1421 | break; |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1422 | case JSObject::EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1423 | stream->Add("u_byte"); |
| 1424 | break; |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1425 | case JSObject::EXTERNAL_SHORT_ELEMENTS: |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1426 | stream->Add("short"); |
| 1427 | break; |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1428 | case JSObject::EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1429 | stream->Add("u_short"); |
| 1430 | break; |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1431 | case JSObject::EXTERNAL_INT_ELEMENTS: |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1432 | stream->Add("int"); |
| 1433 | break; |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1434 | case JSObject::EXTERNAL_UNSIGNED_INT_ELEMENTS: |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1435 | stream->Add("u_int"); |
| 1436 | break; |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1437 | case JSObject::EXTERNAL_FLOAT_ELEMENTS: |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1438 | stream->Add("float"); |
| 1439 | break; |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1440 | case JSObject::EXTERNAL_DOUBLE_ELEMENTS: |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 1441 | stream->Add("double"); |
| 1442 | break; |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1443 | case JSObject::EXTERNAL_PIXEL_ELEMENTS: |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1444 | stream->Add("pixel"); |
| 1445 | break; |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1446 | case JSObject::FAST_ELEMENTS: |
| 1447 | case JSObject::FAST_DOUBLE_ELEMENTS: |
| 1448 | case JSObject::DICTIONARY_ELEMENTS: |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 1449 | case JSObject::NON_STRICT_ARGUMENTS_ELEMENTS: |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1450 | UNREACHABLE(); |
| 1451 | break; |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1452 | } |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 1453 | stream->Add("["); |
| 1454 | key()->PrintNameTo(stream); |
| 1455 | stream->Add("]"); |
| 1456 | } |
| 1457 | |
| 1458 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1459 | void HStoreNamedGeneric::PrintDataTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1460 | object()->PrintNameTo(stream); |
| 1461 | stream->Add("."); |
| 1462 | ASSERT(name()->IsString()); |
| 1463 | stream->Add(*String::cast(*name())->ToCString()); |
| 1464 | stream->Add(" = "); |
| 1465 | value()->PrintNameTo(stream); |
| 1466 | } |
| 1467 | |
| 1468 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1469 | void HStoreNamedField::PrintDataTo(StringStream* stream) { |
| 1470 | object()->PrintNameTo(stream); |
| 1471 | stream->Add("."); |
| 1472 | ASSERT(name()->IsString()); |
| 1473 | stream->Add(*String::cast(*name())->ToCString()); |
| 1474 | stream->Add(" = "); |
| 1475 | value()->PrintNameTo(stream); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1476 | if (!transition().is_null()) { |
| 1477 | stream->Add(" (transition map %p)", *transition()); |
| 1478 | } |
| 1479 | } |
| 1480 | |
| 1481 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1482 | void HStoreKeyedFastElement::PrintDataTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1483 | object()->PrintNameTo(stream); |
| 1484 | stream->Add("["); |
| 1485 | key()->PrintNameTo(stream); |
| 1486 | stream->Add("] = "); |
| 1487 | value()->PrintNameTo(stream); |
| 1488 | } |
| 1489 | |
| 1490 | |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 1491 | void HStoreKeyedFastDoubleElement::PrintDataTo(StringStream* stream) { |
| 1492 | elements()->PrintNameTo(stream); |
| 1493 | stream->Add("["); |
| 1494 | key()->PrintNameTo(stream); |
| 1495 | stream->Add("] = "); |
| 1496 | value()->PrintNameTo(stream); |
| 1497 | } |
| 1498 | |
| 1499 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1500 | void HStoreKeyedGeneric::PrintDataTo(StringStream* stream) { |
| 1501 | object()->PrintNameTo(stream); |
| 1502 | stream->Add("["); |
| 1503 | key()->PrintNameTo(stream); |
| 1504 | stream->Add("] = "); |
| 1505 | value()->PrintNameTo(stream); |
| 1506 | } |
| 1507 | |
| 1508 | |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1509 | void HStoreKeyedSpecializedArrayElement::PrintDataTo( |
| 1510 | StringStream* stream) { |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1511 | external_pointer()->PrintNameTo(stream); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1512 | stream->Add("."); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1513 | switch (elements_kind()) { |
| 1514 | case JSObject::EXTERNAL_BYTE_ELEMENTS: |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1515 | stream->Add("byte"); |
| 1516 | break; |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1517 | case JSObject::EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1518 | stream->Add("u_byte"); |
| 1519 | break; |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1520 | case JSObject::EXTERNAL_SHORT_ELEMENTS: |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1521 | stream->Add("short"); |
| 1522 | break; |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1523 | case JSObject::EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1524 | stream->Add("u_short"); |
| 1525 | break; |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1526 | case JSObject::EXTERNAL_INT_ELEMENTS: |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1527 | stream->Add("int"); |
| 1528 | break; |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1529 | case JSObject::EXTERNAL_UNSIGNED_INT_ELEMENTS: |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1530 | stream->Add("u_int"); |
| 1531 | break; |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1532 | case JSObject::EXTERNAL_FLOAT_ELEMENTS: |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1533 | stream->Add("float"); |
| 1534 | break; |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1535 | case JSObject::EXTERNAL_DOUBLE_ELEMENTS: |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 1536 | stream->Add("double"); |
| 1537 | break; |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1538 | case JSObject::EXTERNAL_PIXEL_ELEMENTS: |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1539 | stream->Add("pixel"); |
| 1540 | break; |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1541 | case JSObject::FAST_ELEMENTS: |
| 1542 | case JSObject::FAST_DOUBLE_ELEMENTS: |
| 1543 | case JSObject::DICTIONARY_ELEMENTS: |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 1544 | case JSObject::NON_STRICT_ARGUMENTS_ELEMENTS: |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1545 | UNREACHABLE(); |
| 1546 | break; |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1547 | } |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1548 | stream->Add("["); |
| 1549 | key()->PrintNameTo(stream); |
| 1550 | stream->Add("] = "); |
| 1551 | value()->PrintNameTo(stream); |
| 1552 | } |
| 1553 | |
| 1554 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 1555 | void HLoadGlobalCell::PrintDataTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1556 | stream->Add("[%p]", *cell()); |
| 1557 | if (check_hole_value()) stream->Add(" (deleteable/read-only)"); |
| 1558 | } |
| 1559 | |
| 1560 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 1561 | void HLoadGlobalGeneric::PrintDataTo(StringStream* stream) { |
| 1562 | stream->Add("%o ", *name()); |
| 1563 | } |
| 1564 | |
| 1565 | |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 1566 | void HStoreGlobalCell::PrintDataTo(StringStream* stream) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1567 | stream->Add("[%p] = ", *cell()); |
| 1568 | value()->PrintNameTo(stream); |
| 1569 | } |
| 1570 | |
| 1571 | |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 1572 | void HStoreGlobalGeneric::PrintDataTo(StringStream* stream) { |
| 1573 | stream->Add("%o = ", *name()); |
| 1574 | value()->PrintNameTo(stream); |
| 1575 | } |
| 1576 | |
| 1577 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1578 | void HLoadContextSlot::PrintDataTo(StringStream* stream) { |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 1579 | value()->PrintNameTo(stream); |
| 1580 | stream->Add("[%d]", slot_index()); |
| 1581 | } |
| 1582 | |
| 1583 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1584 | void HStoreContextSlot::PrintDataTo(StringStream* stream) { |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 1585 | context()->PrintNameTo(stream); |
| 1586 | stream->Add("[%d] = ", slot_index()); |
| 1587 | value()->PrintNameTo(stream); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 1588 | } |
| 1589 | |
| 1590 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1591 | // Implementation of type inference and type conversions. Calculates |
| 1592 | // the inferred type of this instruction based on the input operands. |
| 1593 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1594 | HType HValue::CalculateInferredType() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1595 | return type_; |
| 1596 | } |
| 1597 | |
| 1598 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1599 | HType HCheckMap::CalculateInferredType() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1600 | return value()->type(); |
| 1601 | } |
| 1602 | |
| 1603 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1604 | HType HCheckFunction::CalculateInferredType() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1605 | return value()->type(); |
| 1606 | } |
| 1607 | |
| 1608 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1609 | HType HCheckNonSmi::CalculateInferredType() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1610 | // TODO(kasperl): Is there any way to signal that this isn't a smi? |
| 1611 | return HType::Tagged(); |
| 1612 | } |
| 1613 | |
| 1614 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1615 | HType HCheckSmi::CalculateInferredType() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1616 | return HType::Smi(); |
| 1617 | } |
| 1618 | |
| 1619 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1620 | HType HPhi::CalculateInferredType() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1621 | HType result = HType::Uninitialized(); |
| 1622 | for (int i = 0; i < OperandCount(); ++i) { |
| 1623 | HType current = OperandAt(i)->type(); |
| 1624 | result = result.Combine(current); |
| 1625 | } |
| 1626 | return result; |
| 1627 | } |
| 1628 | |
| 1629 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1630 | HType HConstant::CalculateInferredType() { |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 1631 | return HType::TypeFromValue(handle_); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1632 | } |
| 1633 | |
| 1634 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 1635 | HType HCompareGeneric::CalculateInferredType() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1636 | return HType::Boolean(); |
| 1637 | } |
| 1638 | |
| 1639 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1640 | HType HInstanceOf::CalculateInferredType() { |
| 1641 | return HType::Boolean(); |
| 1642 | } |
| 1643 | |
| 1644 | |
| 1645 | HType HDeleteProperty::CalculateInferredType() { |
| 1646 | return HType::Boolean(); |
| 1647 | } |
| 1648 | |
| 1649 | |
| 1650 | HType HInstanceOfKnownGlobal::CalculateInferredType() { |
| 1651 | return HType::Boolean(); |
| 1652 | } |
| 1653 | |
| 1654 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1655 | HType HBitwiseBinaryOperation::CalculateInferredType() { |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 1656 | return HType::TaggedNumber(); |
| 1657 | } |
| 1658 | |
| 1659 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1660 | HType HArithmeticBinaryOperation::CalculateInferredType() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1661 | return HType::TaggedNumber(); |
| 1662 | } |
| 1663 | |
| 1664 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1665 | HType HAdd::CalculateInferredType() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1666 | return HType::Tagged(); |
| 1667 | } |
| 1668 | |
| 1669 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1670 | HType HBitAnd::CalculateInferredType() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1671 | return HType::TaggedNumber(); |
| 1672 | } |
| 1673 | |
| 1674 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1675 | HType HBitXor::CalculateInferredType() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1676 | return HType::TaggedNumber(); |
| 1677 | } |
| 1678 | |
| 1679 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1680 | HType HBitOr::CalculateInferredType() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1681 | return HType::TaggedNumber(); |
| 1682 | } |
| 1683 | |
| 1684 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1685 | HType HBitNot::CalculateInferredType() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1686 | return HType::TaggedNumber(); |
| 1687 | } |
| 1688 | |
| 1689 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1690 | HType HUnaryMathOperation::CalculateInferredType() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1691 | return HType::TaggedNumber(); |
| 1692 | } |
| 1693 | |
| 1694 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1695 | HType HShl::CalculateInferredType() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1696 | return HType::TaggedNumber(); |
| 1697 | } |
| 1698 | |
| 1699 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1700 | HType HShr::CalculateInferredType() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1701 | return HType::TaggedNumber(); |
| 1702 | } |
| 1703 | |
| 1704 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 1705 | HType HSar::CalculateInferredType() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1706 | return HType::TaggedNumber(); |
| 1707 | } |
| 1708 | |
| 1709 | |
| 1710 | HValue* HUnaryMathOperation::EnsureAndPropagateNotMinusZero( |
| 1711 | BitVector* visited) { |
| 1712 | visited->Add(id()); |
| 1713 | if (representation().IsInteger32() && |
| 1714 | !value()->representation().IsInteger32()) { |
| 1715 | if (value()->range() == NULL || value()->range()->CanBeMinusZero()) { |
| 1716 | SetFlag(kBailoutOnMinusZero); |
| 1717 | } |
| 1718 | } |
| 1719 | if (RequiredInputRepresentation(0).IsInteger32() && |
| 1720 | representation().IsInteger32()) { |
| 1721 | return value(); |
| 1722 | } |
| 1723 | return NULL; |
| 1724 | } |
| 1725 | |
| 1726 | |
| 1727 | |
| 1728 | HValue* HChange::EnsureAndPropagateNotMinusZero(BitVector* visited) { |
| 1729 | visited->Add(id()); |
| 1730 | if (from().IsInteger32()) return NULL; |
| 1731 | if (CanTruncateToInt32()) return NULL; |
| 1732 | if (value()->range() == NULL || value()->range()->CanBeMinusZero()) { |
| 1733 | SetFlag(kBailoutOnMinusZero); |
| 1734 | } |
| 1735 | ASSERT(!from().IsInteger32() || !to().IsInteger32()); |
| 1736 | return NULL; |
| 1737 | } |
| 1738 | |
| 1739 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1740 | HValue* HForceRepresentation::EnsureAndPropagateNotMinusZero( |
| 1741 | BitVector* visited) { |
| 1742 | visited->Add(id()); |
| 1743 | return value(); |
| 1744 | } |
| 1745 | |
| 1746 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1747 | HValue* HMod::EnsureAndPropagateNotMinusZero(BitVector* visited) { |
| 1748 | visited->Add(id()); |
| 1749 | if (range() == NULL || range()->CanBeMinusZero()) { |
| 1750 | SetFlag(kBailoutOnMinusZero); |
| 1751 | return left(); |
| 1752 | } |
| 1753 | return NULL; |
| 1754 | } |
| 1755 | |
| 1756 | |
| 1757 | HValue* HDiv::EnsureAndPropagateNotMinusZero(BitVector* visited) { |
| 1758 | visited->Add(id()); |
| 1759 | if (range() == NULL || range()->CanBeMinusZero()) { |
| 1760 | SetFlag(kBailoutOnMinusZero); |
| 1761 | } |
| 1762 | return NULL; |
| 1763 | } |
| 1764 | |
| 1765 | |
| 1766 | HValue* HMul::EnsureAndPropagateNotMinusZero(BitVector* visited) { |
| 1767 | visited->Add(id()); |
| 1768 | if (range() == NULL || range()->CanBeMinusZero()) { |
| 1769 | SetFlag(kBailoutOnMinusZero); |
| 1770 | } |
| 1771 | return NULL; |
| 1772 | } |
| 1773 | |
| 1774 | |
| 1775 | HValue* HSub::EnsureAndPropagateNotMinusZero(BitVector* visited) { |
| 1776 | visited->Add(id()); |
| 1777 | // Propagate to the left argument. If the left argument cannot be -0, then |
| 1778 | // the result of the add operation cannot be either. |
| 1779 | if (range() == NULL || range()->CanBeMinusZero()) { |
| 1780 | return left(); |
| 1781 | } |
| 1782 | return NULL; |
| 1783 | } |
| 1784 | |
| 1785 | |
| 1786 | HValue* HAdd::EnsureAndPropagateNotMinusZero(BitVector* visited) { |
| 1787 | visited->Add(id()); |
| 1788 | // Propagate to the left argument. If the left argument cannot be -0, then |
| 1789 | // the result of the sub operation cannot be either. |
| 1790 | if (range() == NULL || range()->CanBeMinusZero()) { |
| 1791 | return left(); |
| 1792 | } |
| 1793 | return NULL; |
| 1794 | } |
| 1795 | |
| 1796 | |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 1797 | void HIn::PrintDataTo(StringStream* stream) { |
| 1798 | key()->PrintNameTo(stream); |
| 1799 | stream->Add(" "); |
| 1800 | object()->PrintNameTo(stream); |
| 1801 | } |
| 1802 | |
| 1803 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1804 | // Node-specific verification code is only included in debug mode. |
| 1805 | #ifdef DEBUG |
| 1806 | |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 1807 | void HPhi::Verify() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1808 | ASSERT(OperandCount() == block()->predecessors()->length()); |
| 1809 | for (int i = 0; i < OperandCount(); ++i) { |
| 1810 | HValue* value = OperandAt(i); |
| 1811 | HBasicBlock* defining_block = value->block(); |
| 1812 | HBasicBlock* predecessor_block = block()->predecessors()->at(i); |
| 1813 | ASSERT(defining_block == predecessor_block || |
| 1814 | defining_block->Dominates(predecessor_block)); |
| 1815 | } |
| 1816 | } |
| 1817 | |
| 1818 | |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 1819 | void HSimulate::Verify() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1820 | HInstruction::Verify(); |
| 1821 | ASSERT(HasAstId()); |
| 1822 | } |
| 1823 | |
| 1824 | |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 1825 | void HCheckSmi::Verify() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1826 | HInstruction::Verify(); |
| 1827 | ASSERT(HasNoUses()); |
| 1828 | } |
| 1829 | |
| 1830 | |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 1831 | void HCheckNonSmi::Verify() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1832 | HInstruction::Verify(); |
| 1833 | ASSERT(HasNoUses()); |
| 1834 | } |
| 1835 | |
| 1836 | |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 1837 | void HCheckFunction::Verify() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1838 | HInstruction::Verify(); |
| 1839 | ASSERT(HasNoUses()); |
| 1840 | } |
| 1841 | |
| 1842 | |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 1843 | void HCheckPrototypeMaps::Verify() { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1844 | HInstruction::Verify(); |
| 1845 | ASSERT(HasNoUses()); |
| 1846 | } |
| 1847 | |
| 1848 | #endif |
| 1849 | |
| 1850 | } } // namespace v8::internal |