yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +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 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 28 | #include "ast.h" |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 29 | |
| 30 | #include <math.h> // For isfinite. |
| 31 | #include "builtins.h" |
mvstanton@chromium.org | 6bec009 | 2013-01-23 13:46:53 +0000 | [diff] [blame] | 32 | #include "code-stubs.h" |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 33 | #include "conversions.h" |
| 34 | #include "hashmap.h" |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 35 | #include "parser.h" |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 36 | #include "property-details.h" |
| 37 | #include "property.h" |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 38 | #include "scopes.h" |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 39 | #include "string-stream.h" |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 40 | #include "type-info.h" |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 41 | |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 42 | namespace v8 { |
| 43 | namespace internal { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 44 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 45 | // ---------------------------------------------------------------------------- |
| 46 | // All the Accept member functions for each syntax tree node type. |
| 47 | |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 48 | #define DECL_ACCEPT(type) \ |
| 49 | void type::Accept(AstVisitor* v) { v->Visit##type(this); } |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 50 | AST_NODE_LIST(DECL_ACCEPT) |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 51 | #undef DECL_ACCEPT |
| 52 | |
| 53 | |
| 54 | // ---------------------------------------------------------------------------- |
| 55 | // Implementation of other node functionality. |
| 56 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 57 | |
| 58 | bool Expression::IsSmiLiteral() { |
| 59 | return AsLiteral() != NULL && AsLiteral()->handle()->IsSmi(); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 60 | } |
| 61 | |
| 62 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 63 | bool Expression::IsStringLiteral() { |
| 64 | return AsLiteral() != NULL && AsLiteral()->handle()->IsString(); |
| 65 | } |
| 66 | |
| 67 | |
| 68 | bool Expression::IsNullLiteral() { |
| 69 | return AsLiteral() != NULL && AsLiteral()->handle()->IsNull(); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 70 | } |
| 71 | |
| 72 | |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 73 | VariableProxy::VariableProxy(Isolate* isolate, Variable* var) |
| 74 | : Expression(isolate), |
| 75 | name_(var->name()), |
whesse@chromium.org | 4a1fe7d | 2010-09-27 12:32:04 +0000 | [diff] [blame] | 76 | var_(NULL), // Will be set by the call to BindTo. |
| 77 | is_this_(var->is_this()), |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 78 | is_trivial_(false), |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 79 | is_lvalue_(false), |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 80 | position_(RelocInfo::kNoPosition), |
| 81 | interface_(var->interface()) { |
whesse@chromium.org | 4a1fe7d | 2010-09-27 12:32:04 +0000 | [diff] [blame] | 82 | BindTo(var); |
| 83 | } |
| 84 | |
| 85 | |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 86 | VariableProxy::VariableProxy(Isolate* isolate, |
| 87 | Handle<String> name, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 88 | bool is_this, |
jkummerow@chromium.org | 28583c9 | 2012-07-16 11:31:55 +0000 | [diff] [blame] | 89 | Interface* interface, |
| 90 | int position) |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 91 | : Expression(isolate), |
| 92 | name_(name), |
| 93 | var_(NULL), |
| 94 | is_this_(is_this), |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 95 | is_trivial_(false), |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 96 | is_lvalue_(false), |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 97 | position_(position), |
| 98 | interface_(interface) { |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 99 | // Names must be canonicalized for fast equality checks. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 100 | ASSERT(name->IsSymbol()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 101 | } |
| 102 | |
| 103 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 104 | void VariableProxy::BindTo(Variable* var) { |
| 105 | ASSERT(var_ == NULL); // must be bound only once |
| 106 | ASSERT(var != NULL); // must bind |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 107 | ASSERT(!FLAG_harmony_modules || interface_->IsUnified(var->interface())); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 108 | ASSERT((is_this() && var->is_this()) || name_.is_identical_to(var->name())); |
| 109 | // Ideally CONST-ness should match. However, this is very hard to achieve |
| 110 | // because we don't know the exact semantics of conflicting (const and |
| 111 | // non-const) multiple variable declarations, const vars introduced via |
| 112 | // eval() etc. Const-ness and variable declarations are a complete mess |
| 113 | // in JS. Sigh... |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 114 | var_ = var; |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 115 | var->set_is_used(true); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 116 | } |
| 117 | |
| 118 | |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 119 | Assignment::Assignment(Isolate* isolate, |
| 120 | Token::Value op, |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 121 | Expression* target, |
| 122 | Expression* value, |
| 123 | int pos) |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 124 | : Expression(isolate), |
| 125 | op_(op), |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 126 | target_(target), |
| 127 | value_(value), |
| 128 | pos_(pos), |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 129 | binary_operation_(NULL), |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 130 | assignment_id_(GetNextId(isolate)), |
svenpanne@chromium.org | b1df11d | 2012-02-08 10:26:21 +0000 | [diff] [blame] | 131 | is_monomorphic_(false) { } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 132 | |
| 133 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 134 | Token::Value Assignment::binary_op() const { |
| 135 | switch (op_) { |
| 136 | case Token::ASSIGN_BIT_OR: return Token::BIT_OR; |
| 137 | case Token::ASSIGN_BIT_XOR: return Token::BIT_XOR; |
| 138 | case Token::ASSIGN_BIT_AND: return Token::BIT_AND; |
| 139 | case Token::ASSIGN_SHL: return Token::SHL; |
| 140 | case Token::ASSIGN_SAR: return Token::SAR; |
| 141 | case Token::ASSIGN_SHR: return Token::SHR; |
| 142 | case Token::ASSIGN_ADD: return Token::ADD; |
| 143 | case Token::ASSIGN_SUB: return Token::SUB; |
| 144 | case Token::ASSIGN_MUL: return Token::MUL; |
| 145 | case Token::ASSIGN_DIV: return Token::DIV; |
| 146 | case Token::ASSIGN_MOD: return Token::MOD; |
| 147 | default: UNREACHABLE(); |
| 148 | } |
| 149 | return Token::ILLEGAL; |
| 150 | } |
| 151 | |
| 152 | |
| 153 | bool FunctionLiteral::AllowsLazyCompilation() { |
| 154 | return scope()->AllowsLazyCompilation(); |
| 155 | } |
| 156 | |
| 157 | |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 158 | bool FunctionLiteral::AllowsLazyCompilationWithoutContext() { |
| 159 | return scope()->AllowsLazyCompilationWithoutContext(); |
| 160 | } |
| 161 | |
| 162 | |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 163 | int FunctionLiteral::start_position() const { |
| 164 | return scope()->start_position(); |
| 165 | } |
| 166 | |
| 167 | |
| 168 | int FunctionLiteral::end_position() const { |
| 169 | return scope()->end_position(); |
| 170 | } |
| 171 | |
| 172 | |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 173 | LanguageMode FunctionLiteral::language_mode() const { |
| 174 | return scope()->language_mode(); |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 175 | } |
| 176 | |
| 177 | |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 178 | ObjectLiteral::Property::Property(Literal* key, |
| 179 | Expression* value, |
| 180 | Isolate* isolate) { |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 181 | emit_store_ = true; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 182 | key_ = key; |
| 183 | value_ = value; |
| 184 | Object* k = *key->handle(); |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 185 | if (k->IsSymbol() && |
| 186 | isolate->heap()->Proto_symbol()->Equals(String::cast(k))) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 187 | kind_ = PROTOTYPE; |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 188 | } else if (value_->AsMaterializedLiteral() != NULL) { |
| 189 | kind_ = MATERIALIZED_LITERAL; |
| 190 | } else if (value_->AsLiteral() != NULL) { |
| 191 | kind_ = CONSTANT; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 192 | } else { |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 193 | kind_ = COMPUTED; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 194 | } |
| 195 | } |
| 196 | |
| 197 | |
| 198 | ObjectLiteral::Property::Property(bool is_getter, FunctionLiteral* value) { |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 199 | emit_store_ = true; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 200 | value_ = value; |
| 201 | kind_ = is_getter ? GETTER : SETTER; |
| 202 | } |
| 203 | |
| 204 | |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 205 | bool ObjectLiteral::Property::IsCompileTimeValue() { |
| 206 | return kind_ == CONSTANT || |
| 207 | (kind_ == MATERIALIZED_LITERAL && |
| 208 | CompileTimeValue::IsCompileTimeValue(value_)); |
| 209 | } |
| 210 | |
| 211 | |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 212 | void ObjectLiteral::Property::set_emit_store(bool emit_store) { |
| 213 | emit_store_ = emit_store; |
| 214 | } |
| 215 | |
| 216 | |
| 217 | bool ObjectLiteral::Property::emit_store() { |
| 218 | return emit_store_; |
| 219 | } |
| 220 | |
| 221 | |
| 222 | bool IsEqualString(void* first, void* second) { |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 223 | ASSERT((*reinterpret_cast<String**>(first))->IsString()); |
| 224 | ASSERT((*reinterpret_cast<String**>(second))->IsString()); |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 225 | Handle<String> h1(reinterpret_cast<String**>(first)); |
| 226 | Handle<String> h2(reinterpret_cast<String**>(second)); |
| 227 | return (*h1)->Equals(*h2); |
| 228 | } |
| 229 | |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 230 | |
| 231 | bool IsEqualNumber(void* first, void* second) { |
| 232 | ASSERT((*reinterpret_cast<Object**>(first))->IsNumber()); |
| 233 | ASSERT((*reinterpret_cast<Object**>(second))->IsNumber()); |
| 234 | |
| 235 | Handle<Object> h1(reinterpret_cast<Object**>(first)); |
| 236 | Handle<Object> h2(reinterpret_cast<Object**>(second)); |
| 237 | if (h1->IsSmi()) { |
| 238 | return h2->IsSmi() && *h1 == *h2; |
| 239 | } |
| 240 | if (h2->IsSmi()) return false; |
| 241 | Handle<HeapNumber> n1 = Handle<HeapNumber>::cast(h1); |
| 242 | Handle<HeapNumber> n2 = Handle<HeapNumber>::cast(h2); |
| 243 | ASSERT(isfinite(n1->value())); |
| 244 | ASSERT(isfinite(n2->value())); |
| 245 | return n1->value() == n2->value(); |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 246 | } |
| 247 | |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 248 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 249 | void ObjectLiteral::CalculateEmitStore(Zone* zone) { |
| 250 | ZoneAllocationPolicy allocator(zone); |
| 251 | |
| 252 | ZoneHashMap table(Literal::Match, ZoneHashMap::kDefaultHashMapCapacity, |
| 253 | allocator); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 254 | for (int i = properties()->length() - 1; i >= 0; i--) { |
| 255 | ObjectLiteral::Property* property = properties()->at(i); |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 256 | Literal* literal = property->key(); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 257 | if (literal->handle()->IsNull()) continue; |
| 258 | uint32_t hash = literal->Hash(); |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 259 | // If the key of a computed property is in the table, do not emit |
| 260 | // a store for the property later. |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 261 | if (property->kind() == ObjectLiteral::Property::COMPUTED && |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 262 | table.Lookup(literal, hash, false, allocator) != NULL) { |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 263 | property->set_emit_store(false); |
| 264 | } else { |
| 265 | // Add key to the table. |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 266 | table.Lookup(literal, hash, true, allocator); |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 267 | } |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 268 | } |
| 269 | } |
| 270 | |
| 271 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 272 | void TargetCollector::AddTarget(Label* target, Zone* zone) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 273 | // Add the label to the collector, but discard duplicates. |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 274 | int length = targets_.length(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 275 | for (int i = 0; i < length; i++) { |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 276 | if (targets_[i] == target) return; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 277 | } |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 278 | targets_.Add(target, zone); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 279 | } |
| 280 | |
| 281 | |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 282 | bool UnaryOperation::ResultOverwriteAllowed() { |
| 283 | switch (op_) { |
| 284 | case Token::BIT_NOT: |
| 285 | case Token::SUB: |
| 286 | return true; |
| 287 | default: |
| 288 | return false; |
| 289 | } |
| 290 | } |
| 291 | |
| 292 | |
| 293 | bool BinaryOperation::ResultOverwriteAllowed() { |
| 294 | switch (op_) { |
| 295 | case Token::COMMA: |
| 296 | case Token::OR: |
| 297 | case Token::AND: |
| 298 | return false; |
| 299 | case Token::BIT_OR: |
| 300 | case Token::BIT_XOR: |
| 301 | case Token::BIT_AND: |
| 302 | case Token::SHL: |
| 303 | case Token::SAR: |
| 304 | case Token::SHR: |
| 305 | case Token::ADD: |
| 306 | case Token::SUB: |
| 307 | case Token::MUL: |
| 308 | case Token::DIV: |
| 309 | case Token::MOD: |
| 310 | return true; |
| 311 | default: |
| 312 | UNREACHABLE(); |
| 313 | } |
| 314 | return false; |
| 315 | } |
| 316 | |
| 317 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 318 | static bool IsTypeof(Expression* expr) { |
| 319 | UnaryOperation* maybe_unary = expr->AsUnaryOperation(); |
| 320 | return maybe_unary != NULL && maybe_unary->op() == Token::TYPEOF; |
| 321 | } |
| 322 | |
| 323 | |
| 324 | // Check for the pattern: typeof <expression> equals <string literal>. |
| 325 | static bool MatchLiteralCompareTypeof(Expression* left, |
| 326 | Token::Value op, |
| 327 | Expression* right, |
| 328 | Expression** expr, |
| 329 | Handle<String>* check) { |
| 330 | if (IsTypeof(left) && right->IsStringLiteral() && Token::IsEqualityOp(op)) { |
| 331 | *expr = left->AsUnaryOperation()->expression(); |
| 332 | *check = Handle<String>::cast(right->AsLiteral()->handle()); |
| 333 | return true; |
| 334 | } |
| 335 | return false; |
| 336 | } |
| 337 | |
| 338 | |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 339 | bool CompareOperation::IsLiteralCompareTypeof(Expression** expr, |
| 340 | Handle<String>* check) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 341 | return MatchLiteralCompareTypeof(left_, op_, right_, expr, check) || |
| 342 | MatchLiteralCompareTypeof(right_, op_, left_, expr, check); |
| 343 | } |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 344 | |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 345 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 346 | static bool IsVoidOfLiteral(Expression* expr) { |
| 347 | UnaryOperation* maybe_unary = expr->AsUnaryOperation(); |
| 348 | return maybe_unary != NULL && |
| 349 | maybe_unary->op() == Token::VOID && |
| 350 | maybe_unary->expression()->AsLiteral() != NULL; |
| 351 | } |
| 352 | |
| 353 | |
| 354 | // Check for the pattern: void <literal> equals <expression> |
| 355 | static bool MatchLiteralCompareUndefined(Expression* left, |
| 356 | Token::Value op, |
| 357 | Expression* right, |
| 358 | Expression** expr) { |
| 359 | if (IsVoidOfLiteral(left) && Token::IsEqualityOp(op)) { |
| 360 | *expr = right; |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 361 | return true; |
| 362 | } |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 363 | return false; |
| 364 | } |
| 365 | |
| 366 | |
| 367 | bool CompareOperation::IsLiteralCompareUndefined(Expression** expr) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 368 | return MatchLiteralCompareUndefined(left_, op_, right_, expr) || |
| 369 | MatchLiteralCompareUndefined(right_, op_, left_, expr); |
| 370 | } |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 371 | |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 372 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 373 | // Check for the pattern: null equals <expression> |
| 374 | static bool MatchLiteralCompareNull(Expression* left, |
| 375 | Token::Value op, |
| 376 | Expression* right, |
| 377 | Expression** expr) { |
| 378 | if (left->IsNullLiteral() && Token::IsEqualityOp(op)) { |
| 379 | *expr = right; |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 380 | return true; |
| 381 | } |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 382 | return false; |
| 383 | } |
| 384 | |
| 385 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 386 | bool CompareOperation::IsLiteralCompareNull(Expression** expr) { |
| 387 | return MatchLiteralCompareNull(left_, op_, right_, expr) || |
| 388 | MatchLiteralCompareNull(right_, op_, left_, expr); |
| 389 | } |
| 390 | |
| 391 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 392 | // ---------------------------------------------------------------------------- |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 393 | // Inlining support |
| 394 | |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 395 | bool Declaration::IsInlineable() const { |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 396 | return proxy()->var()->IsStackAllocated(); |
| 397 | } |
| 398 | |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 399 | bool FunctionDeclaration::IsInlineable() const { |
| 400 | return false; |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 401 | } |
| 402 | |
| 403 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 404 | // ---------------------------------------------------------------------------- |
| 405 | // Recording of type feedback |
| 406 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 407 | void Property::RecordTypeFeedback(TypeFeedbackOracle* oracle, |
| 408 | Zone* zone) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 409 | // Record type feedback from the oracle in the AST. |
jkummerow@chromium.org | 531dfe8 | 2012-03-20 13:01:16 +0000 | [diff] [blame] | 410 | is_uninitialized_ = oracle->LoadIsUninitialized(this); |
| 411 | if (is_uninitialized_) return; |
| 412 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 413 | is_monomorphic_ = oracle->LoadIsMonomorphicNormal(this); |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 414 | receiver_types_.Clear(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 415 | if (key()->IsPropertyName()) { |
mvstanton@chromium.org | 6bec009 | 2013-01-23 13:46:53 +0000 | [diff] [blame] | 416 | ArrayLengthStub array_stub(Code::LOAD_IC); |
| 417 | FunctionPrototypeStub proto_stub(Code::LOAD_IC); |
| 418 | StringLengthStub string_stub(Code::LOAD_IC, false); |
| 419 | if (oracle->LoadIsStub(this, &array_stub)) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 420 | is_array_length_ = true; |
mvstanton@chromium.org | 6bec009 | 2013-01-23 13:46:53 +0000 | [diff] [blame] | 421 | } else if (oracle->LoadIsStub(this, &string_stub)) { |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 422 | is_string_length_ = true; |
mvstanton@chromium.org | 6bec009 | 2013-01-23 13:46:53 +0000 | [diff] [blame] | 423 | } else if (oracle->LoadIsStub(this, &proto_stub)) { |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 424 | is_function_prototype_ = true; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 425 | } else { |
| 426 | Literal* lit_key = key()->AsLiteral(); |
| 427 | ASSERT(lit_key != NULL && lit_key->handle()->IsString()); |
| 428 | Handle<String> name = Handle<String>::cast(lit_key->handle()); |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 429 | oracle->LoadReceiverTypes(this, name, &receiver_types_); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 430 | } |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 431 | } else if (oracle->LoadIsBuiltin(this, Builtins::kKeyedLoadIC_String)) { |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 432 | is_string_access_ = true; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 433 | } else if (is_monomorphic_) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 434 | receiver_types_.Add(oracle->LoadMonomorphicReceiverType(this), |
| 435 | zone); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 436 | } else if (oracle->LoadIsPolymorphic(this)) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 437 | receiver_types_.Reserve(kMaxKeyedPolymorphism, zone); |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 438 | oracle->CollectKeyedReceiverTypes(PropertyFeedbackId(), &receiver_types_); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 439 | } |
| 440 | } |
| 441 | |
| 442 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 443 | void Assignment::RecordTypeFeedback(TypeFeedbackOracle* oracle, |
| 444 | Zone* zone) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 445 | Property* prop = target()->AsProperty(); |
| 446 | ASSERT(prop != NULL); |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 447 | TypeFeedbackId id = AssignmentFeedbackId(); |
| 448 | is_monomorphic_ = oracle->StoreIsMonomorphicNormal(id); |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 449 | receiver_types_.Clear(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 450 | if (prop->key()->IsPropertyName()) { |
| 451 | Literal* lit_key = prop->key()->AsLiteral(); |
| 452 | ASSERT(lit_key != NULL && lit_key->handle()->IsString()); |
| 453 | Handle<String> name = Handle<String>::cast(lit_key->handle()); |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 454 | oracle->StoreReceiverTypes(this, name, &receiver_types_); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 455 | } else if (is_monomorphic_) { |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 456 | // Record receiver type for monomorphic keyed stores. |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 457 | receiver_types_.Add(oracle->StoreMonomorphicReceiverType(id), zone); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 458 | } else if (oracle->StoreIsPolymorphic(id)) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 459 | receiver_types_.Reserve(kMaxKeyedPolymorphism, zone); |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 460 | oracle->CollectKeyedReceiverTypes(id, &receiver_types_); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 461 | } |
| 462 | } |
| 463 | |
| 464 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 465 | void CountOperation::RecordTypeFeedback(TypeFeedbackOracle* oracle, |
| 466 | Zone* zone) { |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 467 | TypeFeedbackId id = CountStoreFeedbackId(); |
| 468 | is_monomorphic_ = oracle->StoreIsMonomorphicNormal(id); |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 469 | receiver_types_.Clear(); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 470 | if (is_monomorphic_) { |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 471 | // Record receiver type for monomorphic keyed stores. |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 472 | receiver_types_.Add( |
| 473 | oracle->StoreMonomorphicReceiverType(id), zone); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 474 | } else if (oracle->StoreIsPolymorphic(id)) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 475 | receiver_types_.Reserve(kMaxKeyedPolymorphism, zone); |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 476 | oracle->CollectKeyedReceiverTypes(id, &receiver_types_); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 477 | } |
| 478 | } |
| 479 | |
| 480 | |
| 481 | void CaseClause::RecordTypeFeedback(TypeFeedbackOracle* oracle) { |
| 482 | TypeInfo info = oracle->SwitchType(this); |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 483 | if (info.IsUninitialized()) info = TypeInfo::Unknown(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 484 | if (info.IsSmi()) { |
| 485 | compare_type_ = SMI_ONLY; |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 486 | } else if (info.IsSymbol()) { |
| 487 | compare_type_ = SYMBOL_ONLY; |
| 488 | } else if (info.IsNonSymbol()) { |
| 489 | compare_type_ = STRING_ONLY; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 490 | } else if (info.IsNonPrimitive()) { |
| 491 | compare_type_ = OBJECT_ONLY; |
| 492 | } else { |
| 493 | ASSERT(compare_type_ == NONE); |
| 494 | } |
| 495 | } |
| 496 | |
| 497 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 498 | bool Call::ComputeTarget(Handle<Map> type, Handle<String> name) { |
rossberg@chromium.org | 994edf6 | 2012-02-06 10:12:55 +0000 | [diff] [blame] | 499 | // If there is an interceptor, we can't compute the target for a direct call. |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 500 | if (type->has_named_interceptor()) return false; |
| 501 | |
ager@chromium.org | 0ee099b | 2011-01-25 14:06:47 +0000 | [diff] [blame] | 502 | if (check_type_ == RECEIVER_MAP_CHECK) { |
rossberg@chromium.org | 994edf6 | 2012-02-06 10:12:55 +0000 | [diff] [blame] | 503 | // For primitive checks the holder is set up to point to the corresponding |
| 504 | // prototype object, i.e. one step of the algorithm below has been already |
| 505 | // performed. For non-primitive checks we clear it to allow computing |
| 506 | // targets for polymorphic calls. |
ager@chromium.org | 0ee099b | 2011-01-25 14:06:47 +0000 | [diff] [blame] | 507 | holder_ = Handle<JSObject>::null(); |
| 508 | } |
rossberg@chromium.org | 994edf6 | 2012-02-06 10:12:55 +0000 | [diff] [blame] | 509 | LookupResult lookup(type->GetIsolate()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 510 | while (true) { |
yangguo@chromium.org | 99aa490 | 2012-07-06 16:21:55 +0000 | [diff] [blame] | 511 | type->LookupDescriptor(NULL, *name, &lookup); |
ulan@chromium.org | 9a21ec4 | 2012-03-06 08:42:24 +0000 | [diff] [blame] | 512 | if (lookup.IsFound()) { |
| 513 | switch (lookup.type()) { |
| 514 | case CONSTANT_FUNCTION: |
| 515 | // We surely know the target for a constant function. |
| 516 | target_ = |
| 517 | Handle<JSFunction>(lookup.GetConstantFunctionFromMap(*type)); |
| 518 | return true; |
| 519 | case NORMAL: |
| 520 | case FIELD: |
| 521 | case CALLBACKS: |
| 522 | case HANDLER: |
| 523 | case INTERCEPTOR: |
| 524 | // We don't know the target. |
| 525 | return false; |
yangguo@chromium.org | 99aa490 | 2012-07-06 16:21:55 +0000 | [diff] [blame] | 526 | case TRANSITION: |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 527 | case NONEXISTENT: |
| 528 | UNREACHABLE(); |
| 529 | break; |
rossberg@chromium.org | 994edf6 | 2012-02-06 10:12:55 +0000 | [diff] [blame] | 530 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 531 | } |
rossberg@chromium.org | 994edf6 | 2012-02-06 10:12:55 +0000 | [diff] [blame] | 532 | // If we reach the end of the prototype chain, we don't know the target. |
| 533 | if (!type->prototype()->IsJSObject()) return false; |
| 534 | // Go up the prototype chain, recording where we are currently. |
| 535 | holder_ = Handle<JSObject>(JSObject::cast(type->prototype())); |
rossberg@chromium.org | 657d53b | 2012-07-12 11:06:03 +0000 | [diff] [blame] | 536 | if (!holder_->HasFastProperties()) return false; |
rossberg@chromium.org | 994edf6 | 2012-02-06 10:12:55 +0000 | [diff] [blame] | 537 | type = Handle<Map>(holder()->map()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 538 | } |
| 539 | } |
| 540 | |
| 541 | |
| 542 | bool Call::ComputeGlobalTarget(Handle<GlobalObject> global, |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 543 | LookupResult* lookup) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 544 | target_ = Handle<JSFunction>::null(); |
| 545 | cell_ = Handle<JSGlobalPropertyCell>::null(); |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 546 | ASSERT(lookup->IsFound() && |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 547 | lookup->type() == NORMAL && |
| 548 | lookup->holder() == *global); |
| 549 | cell_ = Handle<JSGlobalPropertyCell>(global->GetPropertyCell(lookup)); |
| 550 | if (cell_->value()->IsJSFunction()) { |
| 551 | Handle<JSFunction> candidate(JSFunction::cast(cell_->value())); |
| 552 | // If the function is in new space we assume it's more likely to |
| 553 | // change and thus prefer the general IC code. |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 554 | if (!HEAP->InNewSpace(*candidate)) { |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 555 | target_ = candidate; |
| 556 | return true; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 557 | } |
| 558 | } |
| 559 | return false; |
| 560 | } |
| 561 | |
| 562 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 563 | void Call::RecordTypeFeedback(TypeFeedbackOracle* oracle, |
| 564 | CallKind call_kind) { |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 565 | is_monomorphic_ = oracle->CallIsMonomorphic(this); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 566 | Property* property = expression()->AsProperty(); |
| 567 | if (property == NULL) { |
| 568 | // Function call. Specialize for monomorphic calls. |
| 569 | if (is_monomorphic_) target_ = oracle->GetCallTarget(this); |
| 570 | } else { |
| 571 | // Method call. Specialize for the receiver types seen at runtime. |
| 572 | Literal* key = property->key()->AsLiteral(); |
| 573 | ASSERT(key != NULL && key->handle()->IsString()); |
| 574 | Handle<String> name = Handle<String>::cast(key->handle()); |
| 575 | receiver_types_.Clear(); |
| 576 | oracle->CallReceiverTypes(this, name, call_kind, &receiver_types_); |
| 577 | #ifdef DEBUG |
| 578 | if (FLAG_enable_slow_asserts) { |
| 579 | int length = receiver_types_.length(); |
| 580 | for (int i = 0; i < length; i++) { |
| 581 | Handle<Map> map = receiver_types_.at(i); |
| 582 | ASSERT(!map.is_null() && *map != NULL); |
| 583 | } |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 584 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 585 | #endif |
| 586 | check_type_ = oracle->GetCallCheckType(this); |
| 587 | if (is_monomorphic_) { |
| 588 | Handle<Map> map; |
| 589 | if (receiver_types_.length() > 0) { |
| 590 | ASSERT(check_type_ == RECEIVER_MAP_CHECK); |
| 591 | map = receiver_types_.at(0); |
| 592 | } else { |
| 593 | ASSERT(check_type_ != RECEIVER_MAP_CHECK); |
| 594 | holder_ = Handle<JSObject>( |
| 595 | oracle->GetPrototypeForPrimitiveCheck(check_type_)); |
| 596 | map = Handle<Map>(holder_->map()); |
| 597 | } |
| 598 | is_monomorphic_ = ComputeTarget(map, name); |
| 599 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 600 | } |
| 601 | } |
| 602 | |
| 603 | |
ulan@chromium.org | 967e270 | 2012-02-28 09:49:15 +0000 | [diff] [blame] | 604 | void CallNew::RecordTypeFeedback(TypeFeedbackOracle* oracle) { |
| 605 | is_monomorphic_ = oracle->CallNewIsMonomorphic(this); |
| 606 | if (is_monomorphic_) { |
| 607 | target_ = oracle->GetCallNewTarget(this); |
| 608 | } |
| 609 | } |
| 610 | |
| 611 | |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 612 | void ObjectLiteral::Property::RecordTypeFeedback(TypeFeedbackOracle* oracle) { |
| 613 | receiver_type_ = oracle->ObjectLiteralStoreIsMonomorphic(this) |
| 614 | ? oracle->GetObjectLiteralStoreMap(this) |
| 615 | : Handle<Map>::null(); |
| 616 | } |
| 617 | |
| 618 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 619 | // ---------------------------------------------------------------------------- |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 620 | // Implementation of AstVisitor |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 621 | |
christian.plesner.hansen@gmail.com | 9d58c2b | 2009-10-16 11:48:38 +0000 | [diff] [blame] | 622 | void AstVisitor::VisitDeclarations(ZoneList<Declaration*>* declarations) { |
| 623 | for (int i = 0; i < declarations->length(); i++) { |
| 624 | Visit(declarations->at(i)); |
| 625 | } |
| 626 | } |
| 627 | |
| 628 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 629 | void AstVisitor::VisitStatements(ZoneList<Statement*>* statements) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 630 | for (int i = 0; i < statements->length(); i++) { |
| 631 | Visit(statements->at(i)); |
| 632 | } |
| 633 | } |
| 634 | |
| 635 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 636 | void AstVisitor::VisitExpressions(ZoneList<Expression*>* expressions) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 637 | for (int i = 0; i < expressions->length(); i++) { |
| 638 | // The variable statement visiting code may pass NULL expressions |
| 639 | // to this code. Maybe this should be handled by introducing an |
| 640 | // undefined expression or literal? Revisit this code if this |
| 641 | // changes |
| 642 | Expression* expression = expressions->at(i); |
| 643 | if (expression != NULL) Visit(expression); |
| 644 | } |
| 645 | } |
| 646 | |
| 647 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 648 | // ---------------------------------------------------------------------------- |
| 649 | // Regular expressions |
| 650 | |
| 651 | #define MAKE_ACCEPT(Name) \ |
| 652 | void* RegExp##Name::Accept(RegExpVisitor* visitor, void* data) { \ |
| 653 | return visitor->Visit##Name(this, data); \ |
| 654 | } |
| 655 | FOR_EACH_REG_EXP_TREE_TYPE(MAKE_ACCEPT) |
| 656 | #undef MAKE_ACCEPT |
| 657 | |
| 658 | #define MAKE_TYPE_CASE(Name) \ |
| 659 | RegExp##Name* RegExpTree::As##Name() { \ |
| 660 | return NULL; \ |
| 661 | } \ |
| 662 | bool RegExpTree::Is##Name() { return false; } |
| 663 | FOR_EACH_REG_EXP_TREE_TYPE(MAKE_TYPE_CASE) |
| 664 | #undef MAKE_TYPE_CASE |
| 665 | |
| 666 | #define MAKE_TYPE_CASE(Name) \ |
| 667 | RegExp##Name* RegExp##Name::As##Name() { \ |
| 668 | return this; \ |
| 669 | } \ |
| 670 | bool RegExp##Name::Is##Name() { return true; } |
| 671 | FOR_EACH_REG_EXP_TREE_TYPE(MAKE_TYPE_CASE) |
| 672 | #undef MAKE_TYPE_CASE |
| 673 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 674 | |
ager@chromium.org | 3291210 | 2009-01-16 10:38:43 +0000 | [diff] [blame] | 675 | static Interval ListCaptureRegisters(ZoneList<RegExpTree*>* children) { |
| 676 | Interval result = Interval::Empty(); |
| 677 | for (int i = 0; i < children->length(); i++) |
| 678 | result = result.Union(children->at(i)->CaptureRegisters()); |
| 679 | return result; |
| 680 | } |
| 681 | |
| 682 | |
| 683 | Interval RegExpAlternative::CaptureRegisters() { |
| 684 | return ListCaptureRegisters(nodes()); |
| 685 | } |
| 686 | |
| 687 | |
| 688 | Interval RegExpDisjunction::CaptureRegisters() { |
| 689 | return ListCaptureRegisters(alternatives()); |
| 690 | } |
| 691 | |
| 692 | |
| 693 | Interval RegExpLookahead::CaptureRegisters() { |
| 694 | return body()->CaptureRegisters(); |
| 695 | } |
| 696 | |
| 697 | |
| 698 | Interval RegExpCapture::CaptureRegisters() { |
| 699 | Interval self(StartRegister(index()), EndRegister(index())); |
| 700 | return self.Union(body()->CaptureRegisters()); |
| 701 | } |
| 702 | |
| 703 | |
| 704 | Interval RegExpQuantifier::CaptureRegisters() { |
| 705 | return body()->CaptureRegisters(); |
| 706 | } |
| 707 | |
| 708 | |
whesse@chromium.org | 4a5224e | 2010-10-20 12:37:07 +0000 | [diff] [blame] | 709 | bool RegExpAssertion::IsAnchoredAtStart() { |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 710 | return type() == RegExpAssertion::START_OF_INPUT; |
| 711 | } |
| 712 | |
| 713 | |
whesse@chromium.org | 4a5224e | 2010-10-20 12:37:07 +0000 | [diff] [blame] | 714 | bool RegExpAssertion::IsAnchoredAtEnd() { |
| 715 | return type() == RegExpAssertion::END_OF_INPUT; |
| 716 | } |
| 717 | |
| 718 | |
| 719 | bool RegExpAlternative::IsAnchoredAtStart() { |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 720 | ZoneList<RegExpTree*>* nodes = this->nodes(); |
| 721 | for (int i = 0; i < nodes->length(); i++) { |
| 722 | RegExpTree* node = nodes->at(i); |
whesse@chromium.org | 4a5224e | 2010-10-20 12:37:07 +0000 | [diff] [blame] | 723 | if (node->IsAnchoredAtStart()) { return true; } |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 724 | if (node->max_match() > 0) { return false; } |
| 725 | } |
| 726 | return false; |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 727 | } |
| 728 | |
| 729 | |
whesse@chromium.org | 4a5224e | 2010-10-20 12:37:07 +0000 | [diff] [blame] | 730 | bool RegExpAlternative::IsAnchoredAtEnd() { |
| 731 | ZoneList<RegExpTree*>* nodes = this->nodes(); |
| 732 | for (int i = nodes->length() - 1; i >= 0; i--) { |
| 733 | RegExpTree* node = nodes->at(i); |
| 734 | if (node->IsAnchoredAtEnd()) { return true; } |
| 735 | if (node->max_match() > 0) { return false; } |
| 736 | } |
| 737 | return false; |
| 738 | } |
| 739 | |
| 740 | |
| 741 | bool RegExpDisjunction::IsAnchoredAtStart() { |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 742 | ZoneList<RegExpTree*>* alternatives = this->alternatives(); |
| 743 | for (int i = 0; i < alternatives->length(); i++) { |
whesse@chromium.org | 4a5224e | 2010-10-20 12:37:07 +0000 | [diff] [blame] | 744 | if (!alternatives->at(i)->IsAnchoredAtStart()) |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 745 | return false; |
| 746 | } |
| 747 | return true; |
| 748 | } |
| 749 | |
| 750 | |
whesse@chromium.org | 4a5224e | 2010-10-20 12:37:07 +0000 | [diff] [blame] | 751 | bool RegExpDisjunction::IsAnchoredAtEnd() { |
| 752 | ZoneList<RegExpTree*>* alternatives = this->alternatives(); |
| 753 | for (int i = 0; i < alternatives->length(); i++) { |
| 754 | if (!alternatives->at(i)->IsAnchoredAtEnd()) |
| 755 | return false; |
| 756 | } |
| 757 | return true; |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 758 | } |
| 759 | |
| 760 | |
whesse@chromium.org | 4a5224e | 2010-10-20 12:37:07 +0000 | [diff] [blame] | 761 | bool RegExpLookahead::IsAnchoredAtStart() { |
| 762 | return is_positive() && body()->IsAnchoredAtStart(); |
| 763 | } |
| 764 | |
| 765 | |
| 766 | bool RegExpCapture::IsAnchoredAtStart() { |
| 767 | return body()->IsAnchoredAtStart(); |
| 768 | } |
| 769 | |
| 770 | |
| 771 | bool RegExpCapture::IsAnchoredAtEnd() { |
| 772 | return body()->IsAnchoredAtEnd(); |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 773 | } |
| 774 | |
| 775 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 776 | // Convert regular expression trees to a simple sexp representation. |
| 777 | // This representation should be different from the input grammar |
| 778 | // in as many cases as possible, to make it more difficult for incorrect |
| 779 | // parses to look as correct ones which is likely if the input and |
| 780 | // output formats are alike. |
| 781 | class RegExpUnparser: public RegExpVisitor { |
| 782 | public: |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 783 | explicit RegExpUnparser(Zone* zone); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 784 | void VisitCharacterRange(CharacterRange that); |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 785 | SmartArrayPointer<const char> ToString() { return stream_.ToCString(); } |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 786 | #define MAKE_CASE(Name) virtual void* Visit##Name(RegExp##Name*, void* data); |
| 787 | FOR_EACH_REG_EXP_TREE_TYPE(MAKE_CASE) |
| 788 | #undef MAKE_CASE |
| 789 | private: |
| 790 | StringStream* stream() { return &stream_; } |
| 791 | HeapStringAllocator alloc_; |
| 792 | StringStream stream_; |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 793 | Zone* zone_; |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 794 | }; |
| 795 | |
| 796 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 797 | RegExpUnparser::RegExpUnparser(Zone* zone) : stream_(&alloc_), zone_(zone) { |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 798 | } |
| 799 | |
| 800 | |
| 801 | void* RegExpUnparser::VisitDisjunction(RegExpDisjunction* that, void* data) { |
| 802 | stream()->Add("(|"); |
| 803 | for (int i = 0; i < that->alternatives()->length(); i++) { |
| 804 | stream()->Add(" "); |
| 805 | that->alternatives()->at(i)->Accept(this, data); |
| 806 | } |
| 807 | stream()->Add(")"); |
| 808 | return NULL; |
| 809 | } |
| 810 | |
| 811 | |
| 812 | void* RegExpUnparser::VisitAlternative(RegExpAlternative* that, void* data) { |
| 813 | stream()->Add("(:"); |
| 814 | for (int i = 0; i < that->nodes()->length(); i++) { |
| 815 | stream()->Add(" "); |
| 816 | that->nodes()->at(i)->Accept(this, data); |
| 817 | } |
| 818 | stream()->Add(")"); |
| 819 | return NULL; |
| 820 | } |
| 821 | |
| 822 | |
| 823 | void RegExpUnparser::VisitCharacterRange(CharacterRange that) { |
| 824 | stream()->Add("%k", that.from()); |
| 825 | if (!that.IsSingleton()) { |
| 826 | stream()->Add("-%k", that.to()); |
| 827 | } |
| 828 | } |
| 829 | |
| 830 | |
| 831 | |
| 832 | void* RegExpUnparser::VisitCharacterClass(RegExpCharacterClass* that, |
| 833 | void* data) { |
| 834 | if (that->is_negated()) |
| 835 | stream()->Add("^"); |
| 836 | stream()->Add("["); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 837 | for (int i = 0; i < that->ranges(zone_)->length(); i++) { |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 838 | if (i > 0) stream()->Add(" "); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 839 | VisitCharacterRange(that->ranges(zone_)->at(i)); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 840 | } |
| 841 | stream()->Add("]"); |
| 842 | return NULL; |
| 843 | } |
| 844 | |
| 845 | |
| 846 | void* RegExpUnparser::VisitAssertion(RegExpAssertion* that, void* data) { |
| 847 | switch (that->type()) { |
| 848 | case RegExpAssertion::START_OF_INPUT: |
| 849 | stream()->Add("@^i"); |
| 850 | break; |
| 851 | case RegExpAssertion::END_OF_INPUT: |
| 852 | stream()->Add("@$i"); |
| 853 | break; |
| 854 | case RegExpAssertion::START_OF_LINE: |
| 855 | stream()->Add("@^l"); |
| 856 | break; |
| 857 | case RegExpAssertion::END_OF_LINE: |
| 858 | stream()->Add("@$l"); |
| 859 | break; |
| 860 | case RegExpAssertion::BOUNDARY: |
| 861 | stream()->Add("@b"); |
| 862 | break; |
| 863 | case RegExpAssertion::NON_BOUNDARY: |
| 864 | stream()->Add("@B"); |
| 865 | break; |
| 866 | } |
| 867 | return NULL; |
| 868 | } |
| 869 | |
| 870 | |
| 871 | void* RegExpUnparser::VisitAtom(RegExpAtom* that, void* data) { |
| 872 | stream()->Add("'"); |
| 873 | Vector<const uc16> chardata = that->data(); |
| 874 | for (int i = 0; i < chardata.length(); i++) { |
| 875 | stream()->Add("%k", chardata[i]); |
| 876 | } |
| 877 | stream()->Add("'"); |
| 878 | return NULL; |
| 879 | } |
| 880 | |
| 881 | |
| 882 | void* RegExpUnparser::VisitText(RegExpText* that, void* data) { |
| 883 | if (that->elements()->length() == 1) { |
| 884 | that->elements()->at(0).data.u_atom->Accept(this, data); |
| 885 | } else { |
| 886 | stream()->Add("(!"); |
| 887 | for (int i = 0; i < that->elements()->length(); i++) { |
| 888 | stream()->Add(" "); |
| 889 | that->elements()->at(i).data.u_atom->Accept(this, data); |
| 890 | } |
| 891 | stream()->Add(")"); |
| 892 | } |
| 893 | return NULL; |
| 894 | } |
| 895 | |
| 896 | |
| 897 | void* RegExpUnparser::VisitQuantifier(RegExpQuantifier* that, void* data) { |
| 898 | stream()->Add("(# %i ", that->min()); |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 899 | if (that->max() == RegExpTree::kInfinity) { |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 900 | stream()->Add("- "); |
| 901 | } else { |
| 902 | stream()->Add("%i ", that->max()); |
| 903 | } |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 904 | stream()->Add(that->is_greedy() ? "g " : that->is_possessive() ? "p " : "n "); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 905 | that->body()->Accept(this, data); |
| 906 | stream()->Add(")"); |
| 907 | return NULL; |
| 908 | } |
| 909 | |
| 910 | |
| 911 | void* RegExpUnparser::VisitCapture(RegExpCapture* that, void* data) { |
| 912 | stream()->Add("(^ "); |
| 913 | that->body()->Accept(this, data); |
| 914 | stream()->Add(")"); |
| 915 | return NULL; |
| 916 | } |
| 917 | |
| 918 | |
| 919 | void* RegExpUnparser::VisitLookahead(RegExpLookahead* that, void* data) { |
| 920 | stream()->Add("(-> "); |
| 921 | stream()->Add(that->is_positive() ? "+ " : "- "); |
| 922 | that->body()->Accept(this, data); |
| 923 | stream()->Add(")"); |
| 924 | return NULL; |
| 925 | } |
| 926 | |
| 927 | |
| 928 | void* RegExpUnparser::VisitBackReference(RegExpBackReference* that, |
| 929 | void* data) { |
| 930 | stream()->Add("(<- %i)", that->index()); |
| 931 | return NULL; |
| 932 | } |
| 933 | |
| 934 | |
| 935 | void* RegExpUnparser::VisitEmpty(RegExpEmpty* that, void* data) { |
| 936 | stream()->Put('%'); |
| 937 | return NULL; |
| 938 | } |
| 939 | |
| 940 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 941 | SmartArrayPointer<const char> RegExpTree::ToString(Zone* zone) { |
| 942 | RegExpUnparser unparser(zone); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 943 | Accept(&unparser, NULL); |
| 944 | return unparser.ToString(); |
| 945 | } |
| 946 | |
| 947 | |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 948 | RegExpDisjunction::RegExpDisjunction(ZoneList<RegExpTree*>* alternatives) |
| 949 | : alternatives_(alternatives) { |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 950 | ASSERT(alternatives->length() > 1); |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 951 | RegExpTree* first_alternative = alternatives->at(0); |
| 952 | min_match_ = first_alternative->min_match(); |
| 953 | max_match_ = first_alternative->max_match(); |
| 954 | for (int i = 1; i < alternatives->length(); i++) { |
| 955 | RegExpTree* alternative = alternatives->at(i); |
| 956 | min_match_ = Min(min_match_, alternative->min_match()); |
| 957 | max_match_ = Max(max_match_, alternative->max_match()); |
| 958 | } |
| 959 | } |
| 960 | |
| 961 | |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 962 | static int IncreaseBy(int previous, int increase) { |
| 963 | if (RegExpTree::kInfinity - previous < increase) { |
| 964 | return RegExpTree::kInfinity; |
| 965 | } else { |
| 966 | return previous + increase; |
| 967 | } |
| 968 | } |
| 969 | |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 970 | RegExpAlternative::RegExpAlternative(ZoneList<RegExpTree*>* nodes) |
| 971 | : nodes_(nodes) { |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 972 | ASSERT(nodes->length() > 1); |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 973 | min_match_ = 0; |
| 974 | max_match_ = 0; |
| 975 | for (int i = 0; i < nodes->length(); i++) { |
| 976 | RegExpTree* node = nodes->at(i); |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 977 | int node_min_match = node->min_match(); |
| 978 | min_match_ = IncreaseBy(min_match_, node_min_match); |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 979 | int node_max_match = node->max_match(); |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 980 | max_match_ = IncreaseBy(max_match_, node_max_match); |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 981 | } |
| 982 | } |
| 983 | |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 984 | |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 985 | CaseClause::CaseClause(Isolate* isolate, |
| 986 | Expression* label, |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 987 | ZoneList<Statement*>* statements, |
| 988 | int pos) |
| 989 | : label_(label), |
| 990 | statements_(statements), |
| 991 | position_(pos), |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 992 | compare_type_(NONE), |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 993 | compare_id_(AstNode::GetNextId(isolate)), |
| 994 | entry_id_(AstNode::GetNextId(isolate)) { |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 995 | } |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 996 | |
svenpanne@chromium.org | b1df11d | 2012-02-08 10:26:21 +0000 | [diff] [blame] | 997 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 998 | #define REGULAR_NODE(NodeType) \ |
svenpanne@chromium.org | b1df11d | 2012-02-08 10:26:21 +0000 | [diff] [blame] | 999 | void AstConstructionVisitor::Visit##NodeType(NodeType* node) { \ |
| 1000 | increase_node_count(); \ |
| 1001 | } |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1002 | #define DONT_OPTIMIZE_NODE(NodeType) \ |
| 1003 | void AstConstructionVisitor::Visit##NodeType(NodeType* node) { \ |
| 1004 | increase_node_count(); \ |
| 1005 | add_flag(kDontOptimize); \ |
| 1006 | add_flag(kDontInline); \ |
| 1007 | add_flag(kDontSelfOptimize); \ |
| 1008 | } |
| 1009 | #define DONT_INLINE_NODE(NodeType) \ |
| 1010 | void AstConstructionVisitor::Visit##NodeType(NodeType* node) { \ |
| 1011 | increase_node_count(); \ |
| 1012 | add_flag(kDontInline); \ |
| 1013 | } |
| 1014 | #define DONT_SELFOPTIMIZE_NODE(NodeType) \ |
| 1015 | void AstConstructionVisitor::Visit##NodeType(NodeType* node) { \ |
| 1016 | increase_node_count(); \ |
| 1017 | add_flag(kDontSelfOptimize); \ |
| 1018 | } |
danno@chromium.org | 81cac2b | 2012-07-10 11:28:27 +0000 | [diff] [blame] | 1019 | #define DONT_CACHE_NODE(NodeType) \ |
| 1020 | void AstConstructionVisitor::Visit##NodeType(NodeType* node) { \ |
| 1021 | increase_node_count(); \ |
| 1022 | add_flag(kDontOptimize); \ |
| 1023 | add_flag(kDontInline); \ |
| 1024 | add_flag(kDontSelfOptimize); \ |
| 1025 | add_flag(kDontCache); \ |
| 1026 | } |
svenpanne@chromium.org | b1df11d | 2012-02-08 10:26:21 +0000 | [diff] [blame] | 1027 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1028 | REGULAR_NODE(VariableDeclaration) |
| 1029 | REGULAR_NODE(FunctionDeclaration) |
| 1030 | REGULAR_NODE(Block) |
| 1031 | REGULAR_NODE(ExpressionStatement) |
| 1032 | REGULAR_NODE(EmptyStatement) |
| 1033 | REGULAR_NODE(IfStatement) |
| 1034 | REGULAR_NODE(ContinueStatement) |
| 1035 | REGULAR_NODE(BreakStatement) |
| 1036 | REGULAR_NODE(ReturnStatement) |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 1037 | REGULAR_NODE(SwitchStatement) |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1038 | REGULAR_NODE(Conditional) |
| 1039 | REGULAR_NODE(Literal) |
| 1040 | REGULAR_NODE(ObjectLiteral) |
yangguo@chromium.org | 9c741c8 | 2012-06-28 15:04:22 +0000 | [diff] [blame] | 1041 | REGULAR_NODE(RegExpLiteral) |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1042 | REGULAR_NODE(Assignment) |
| 1043 | REGULAR_NODE(Throw) |
| 1044 | REGULAR_NODE(Property) |
| 1045 | REGULAR_NODE(UnaryOperation) |
| 1046 | REGULAR_NODE(CountOperation) |
| 1047 | REGULAR_NODE(BinaryOperation) |
| 1048 | REGULAR_NODE(CompareOperation) |
| 1049 | REGULAR_NODE(ThisFunction) |
| 1050 | REGULAR_NODE(Call) |
| 1051 | REGULAR_NODE(CallNew) |
| 1052 | // In theory, for VariableProxy we'd have to add: |
| 1053 | // if (node->var()->IsLookupSlot()) add_flag(kDontInline); |
| 1054 | // But node->var() is usually not bound yet at VariableProxy creation time, and |
| 1055 | // LOOKUP variables only result from constructs that cannot be inlined anyway. |
| 1056 | REGULAR_NODE(VariableProxy) |
svenpanne@chromium.org | b1df11d | 2012-02-08 10:26:21 +0000 | [diff] [blame] | 1057 | |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1058 | // We currently do not optimize any modules. |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1059 | DONT_OPTIMIZE_NODE(ModuleDeclaration) |
| 1060 | DONT_OPTIMIZE_NODE(ImportDeclaration) |
| 1061 | DONT_OPTIMIZE_NODE(ExportDeclaration) |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1062 | DONT_OPTIMIZE_NODE(ModuleVariable) |
| 1063 | DONT_OPTIMIZE_NODE(ModulePath) |
| 1064 | DONT_OPTIMIZE_NODE(ModuleUrl) |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1065 | DONT_OPTIMIZE_NODE(ModuleStatement) |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1066 | DONT_OPTIMIZE_NODE(WithStatement) |
| 1067 | DONT_OPTIMIZE_NODE(TryCatchStatement) |
| 1068 | DONT_OPTIMIZE_NODE(TryFinallyStatement) |
| 1069 | DONT_OPTIMIZE_NODE(DebuggerStatement) |
| 1070 | DONT_OPTIMIZE_NODE(SharedFunctionInfoLiteral) |
svenpanne@chromium.org | b1df11d | 2012-02-08 10:26:21 +0000 | [diff] [blame] | 1071 | |
mstarzinger@chromium.org | c6d9cee | 2012-07-03 10:03:19 +0000 | [diff] [blame] | 1072 | DONT_INLINE_NODE(ArrayLiteral) // TODO(1322): Allow materialized literals. |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1073 | DONT_INLINE_NODE(FunctionLiteral) |
svenpanne@chromium.org | b1df11d | 2012-02-08 10:26:21 +0000 | [diff] [blame] | 1074 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1075 | DONT_SELFOPTIMIZE_NODE(DoWhileStatement) |
| 1076 | DONT_SELFOPTIMIZE_NODE(WhileStatement) |
| 1077 | DONT_SELFOPTIMIZE_NODE(ForStatement) |
| 1078 | DONT_SELFOPTIMIZE_NODE(ForInStatement) |
svenpanne@chromium.org | b1df11d | 2012-02-08 10:26:21 +0000 | [diff] [blame] | 1079 | |
danno@chromium.org | 81cac2b | 2012-07-10 11:28:27 +0000 | [diff] [blame] | 1080 | DONT_CACHE_NODE(ModuleLiteral) |
| 1081 | |
svenpanne@chromium.org | b1df11d | 2012-02-08 10:26:21 +0000 | [diff] [blame] | 1082 | void AstConstructionVisitor::VisitCallRuntime(CallRuntime* node) { |
| 1083 | increase_node_count(); |
svenpanne@chromium.org | b1df11d | 2012-02-08 10:26:21 +0000 | [diff] [blame] | 1084 | if (node->is_jsruntime()) { |
| 1085 | // Don't try to inline JS runtime calls because we don't (currently) even |
| 1086 | // optimize them. |
| 1087 | add_flag(kDontInline); |
| 1088 | } else if (node->function()->intrinsic_type == Runtime::INLINE && |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1089 | (node->name()->IsOneByteEqualTo( |
| 1090 | STATIC_ASCII_VECTOR("_ArgumentsLength")) || |
| 1091 | node->name()->IsOneByteEqualTo(STATIC_ASCII_VECTOR("_Arguments")))) { |
svenpanne@chromium.org | b1df11d | 2012-02-08 10:26:21 +0000 | [diff] [blame] | 1092 | // Don't inline the %_ArgumentsLength or %_Arguments because their |
| 1093 | // implementation will not work. There is no stack frame to get them |
| 1094 | // from. |
| 1095 | add_flag(kDontInline); |
| 1096 | } |
| 1097 | } |
| 1098 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1099 | #undef REGULAR_NODE |
| 1100 | #undef DONT_OPTIMIZE_NODE |
| 1101 | #undef DONT_INLINE_NODE |
| 1102 | #undef DONT_SELFOPTIMIZE_NODE |
danno@chromium.org | 81cac2b | 2012-07-10 11:28:27 +0000 | [diff] [blame] | 1103 | #undef DONT_CACHE_NODE |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1104 | |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 1105 | |
| 1106 | Handle<String> Literal::ToString() { |
| 1107 | if (handle_->IsString()) return Handle<String>::cast(handle_); |
| 1108 | ASSERT(handle_->IsNumber()); |
| 1109 | char arr[100]; |
| 1110 | Vector<char> buffer(arr, ARRAY_SIZE(arr)); |
| 1111 | const char* str; |
| 1112 | if (handle_->IsSmi()) { |
| 1113 | // Optimization only, the heap number case would subsume this. |
| 1114 | OS::SNPrintF(buffer, "%d", Smi::cast(*handle_)->value()); |
| 1115 | str = arr; |
| 1116 | } else { |
| 1117 | str = DoubleToCString(handle_->Number(), buffer); |
| 1118 | } |
| 1119 | return FACTORY->NewStringFromAscii(CStrVector(str)); |
| 1120 | } |
| 1121 | |
| 1122 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1123 | } } // namespace v8::internal |