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 | |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 30 | #include <cmath> // For isfinite. |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 31 | #include "builtins.h" |
mvstanton@chromium.org | 6bec009 | 2013-01-23 13:46:53 +0000 | [diff] [blame] | 32 | #include "code-stubs.h" |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 33 | #include "contexts.h" |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 34 | #include "conversions.h" |
| 35 | #include "hashmap.h" |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 36 | #include "parser.h" |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 37 | #include "property-details.h" |
| 38 | #include "property.h" |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 39 | #include "scopes.h" |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 40 | #include "string-stream.h" |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 41 | #include "type-info.h" |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 42 | |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 43 | namespace v8 { |
| 44 | namespace internal { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 45 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 46 | // ---------------------------------------------------------------------------- |
| 47 | // All the Accept member functions for each syntax tree node type. |
| 48 | |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 49 | #define DECL_ACCEPT(type) \ |
| 50 | void type::Accept(AstVisitor* v) { v->Visit##type(this); } |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 51 | AST_NODE_LIST(DECL_ACCEPT) |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 52 | #undef DECL_ACCEPT |
| 53 | |
| 54 | |
| 55 | // ---------------------------------------------------------------------------- |
| 56 | // Implementation of other node functionality. |
| 57 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 58 | |
| 59 | bool Expression::IsSmiLiteral() { |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 60 | return AsLiteral() != NULL && AsLiteral()->value()->IsSmi(); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 61 | } |
| 62 | |
| 63 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 64 | bool Expression::IsStringLiteral() { |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 65 | return AsLiteral() != NULL && AsLiteral()->value()->IsString(); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 66 | } |
| 67 | |
| 68 | |
| 69 | bool Expression::IsNullLiteral() { |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 70 | return AsLiteral() != NULL && AsLiteral()->value()->IsNull(); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 71 | } |
| 72 | |
| 73 | |
jkummerow@chromium.org | 96a3c51 | 2013-07-18 17:02:47 +0000 | [diff] [blame] | 74 | bool Expression::IsUndefinedLiteral(Isolate* isolate) { |
| 75 | VariableProxy* var_proxy = AsVariableProxy(); |
| 76 | if (var_proxy == NULL) return false; |
| 77 | Variable* var = var_proxy->var(); |
| 78 | // The global identifier "undefined" is immutable. Everything |
| 79 | // else could be reassigned. |
| 80 | return var != NULL && var->location() == Variable::UNALLOCATED && |
| 81 | var_proxy->name()->Equals(isolate->heap()->undefined_string()); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 82 | } |
| 83 | |
| 84 | |
mstarzinger@chromium.org | a2e1a40 | 2013-10-15 08:25:05 +0000 | [diff] [blame] | 85 | VariableProxy::VariableProxy(Isolate* isolate, Variable* var, int position) |
| 86 | : Expression(isolate, position), |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 87 | name_(var->name()), |
whesse@chromium.org | 4a1fe7d | 2010-09-27 12:32:04 +0000 | [diff] [blame] | 88 | var_(NULL), // Will be set by the call to BindTo. |
| 89 | is_this_(var->is_this()), |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 90 | is_trivial_(false), |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 91 | is_lvalue_(false), |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 92 | interface_(var->interface()) { |
whesse@chromium.org | 4a1fe7d | 2010-09-27 12:32:04 +0000 | [diff] [blame] | 93 | BindTo(var); |
| 94 | } |
| 95 | |
| 96 | |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 97 | VariableProxy::VariableProxy(Isolate* isolate, |
| 98 | Handle<String> name, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 99 | bool is_this, |
jkummerow@chromium.org | 28583c9 | 2012-07-16 11:31:55 +0000 | [diff] [blame] | 100 | Interface* interface, |
| 101 | int position) |
mstarzinger@chromium.org | a2e1a40 | 2013-10-15 08:25:05 +0000 | [diff] [blame] | 102 | : Expression(isolate, position), |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 103 | name_(name), |
| 104 | var_(NULL), |
| 105 | is_this_(is_this), |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 106 | is_trivial_(false), |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 107 | is_lvalue_(false), |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 108 | interface_(interface) { |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 109 | // Names must be canonicalized for fast equality checks. |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 110 | ASSERT(name->IsInternalizedString()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 111 | } |
| 112 | |
| 113 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 114 | void VariableProxy::BindTo(Variable* var) { |
| 115 | ASSERT(var_ == NULL); // must be bound only once |
| 116 | ASSERT(var != NULL); // must bind |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 117 | ASSERT(!FLAG_harmony_modules || interface_->IsUnified(var->interface())); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 118 | ASSERT((is_this() && var->is_this()) || name_.is_identical_to(var->name())); |
| 119 | // Ideally CONST-ness should match. However, this is very hard to achieve |
| 120 | // because we don't know the exact semantics of conflicting (const and |
| 121 | // non-const) multiple variable declarations, const vars introduced via |
| 122 | // eval() etc. Const-ness and variable declarations are a complete mess |
| 123 | // in JS. Sigh... |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 124 | var_ = var; |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 125 | var->set_is_used(true); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 126 | } |
| 127 | |
| 128 | |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 129 | Assignment::Assignment(Isolate* isolate, |
| 130 | Token::Value op, |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 131 | Expression* target, |
| 132 | Expression* value, |
| 133 | int pos) |
mstarzinger@chromium.org | a2e1a40 | 2013-10-15 08:25:05 +0000 | [diff] [blame] | 134 | : Expression(isolate, pos), |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 135 | op_(op), |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 136 | target_(target), |
| 137 | value_(value), |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 138 | binary_operation_(NULL), |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 139 | assignment_id_(GetNextId(isolate)), |
jkummerow@chromium.org | 7bd87f0 | 2013-03-20 18:06:29 +0000 | [diff] [blame] | 140 | is_monomorphic_(false), |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 141 | is_uninitialized_(false), |
jkummerow@chromium.org | 7bd87f0 | 2013-03-20 18:06:29 +0000 | [diff] [blame] | 142 | store_mode_(STANDARD_STORE) { } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 143 | |
| 144 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 145 | Token::Value Assignment::binary_op() const { |
| 146 | switch (op_) { |
| 147 | case Token::ASSIGN_BIT_OR: return Token::BIT_OR; |
| 148 | case Token::ASSIGN_BIT_XOR: return Token::BIT_XOR; |
| 149 | case Token::ASSIGN_BIT_AND: return Token::BIT_AND; |
| 150 | case Token::ASSIGN_SHL: return Token::SHL; |
| 151 | case Token::ASSIGN_SAR: return Token::SAR; |
| 152 | case Token::ASSIGN_SHR: return Token::SHR; |
| 153 | case Token::ASSIGN_ADD: return Token::ADD; |
| 154 | case Token::ASSIGN_SUB: return Token::SUB; |
| 155 | case Token::ASSIGN_MUL: return Token::MUL; |
| 156 | case Token::ASSIGN_DIV: return Token::DIV; |
| 157 | case Token::ASSIGN_MOD: return Token::MOD; |
| 158 | default: UNREACHABLE(); |
| 159 | } |
| 160 | return Token::ILLEGAL; |
| 161 | } |
| 162 | |
| 163 | |
| 164 | bool FunctionLiteral::AllowsLazyCompilation() { |
| 165 | return scope()->AllowsLazyCompilation(); |
| 166 | } |
| 167 | |
| 168 | |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 169 | bool FunctionLiteral::AllowsLazyCompilationWithoutContext() { |
| 170 | return scope()->AllowsLazyCompilationWithoutContext(); |
| 171 | } |
| 172 | |
| 173 | |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 174 | int FunctionLiteral::start_position() const { |
| 175 | return scope()->start_position(); |
| 176 | } |
| 177 | |
| 178 | |
| 179 | int FunctionLiteral::end_position() const { |
| 180 | return scope()->end_position(); |
| 181 | } |
| 182 | |
| 183 | |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 184 | LanguageMode FunctionLiteral::language_mode() const { |
| 185 | return scope()->language_mode(); |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 186 | } |
| 187 | |
| 188 | |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 189 | ObjectLiteralProperty::ObjectLiteralProperty(Literal* key, |
| 190 | Expression* value, |
| 191 | Isolate* isolate) { |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 192 | emit_store_ = true; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 193 | key_ = key; |
| 194 | value_ = value; |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 195 | Object* k = *key->value(); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 196 | if (k->IsInternalizedString() && |
| 197 | isolate->heap()->proto_string()->Equals(String::cast(k))) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 198 | kind_ = PROTOTYPE; |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 199 | } else if (value_->AsMaterializedLiteral() != NULL) { |
| 200 | kind_ = MATERIALIZED_LITERAL; |
| 201 | } else if (value_->AsLiteral() != NULL) { |
| 202 | kind_ = CONSTANT; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 203 | } else { |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 204 | kind_ = COMPUTED; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 205 | } |
| 206 | } |
| 207 | |
| 208 | |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 209 | ObjectLiteralProperty::ObjectLiteralProperty(bool is_getter, |
| 210 | FunctionLiteral* value) { |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 211 | emit_store_ = true; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 212 | value_ = value; |
| 213 | kind_ = is_getter ? GETTER : SETTER; |
| 214 | } |
| 215 | |
| 216 | |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 217 | bool ObjectLiteral::Property::IsCompileTimeValue() { |
| 218 | return kind_ == CONSTANT || |
| 219 | (kind_ == MATERIALIZED_LITERAL && |
| 220 | CompileTimeValue::IsCompileTimeValue(value_)); |
| 221 | } |
| 222 | |
| 223 | |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 224 | void ObjectLiteral::Property::set_emit_store(bool emit_store) { |
| 225 | emit_store_ = emit_store; |
| 226 | } |
| 227 | |
| 228 | |
| 229 | bool ObjectLiteral::Property::emit_store() { |
| 230 | return emit_store_; |
| 231 | } |
| 232 | |
| 233 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 234 | void ObjectLiteral::CalculateEmitStore(Zone* zone) { |
| 235 | ZoneAllocationPolicy allocator(zone); |
| 236 | |
| 237 | ZoneHashMap table(Literal::Match, ZoneHashMap::kDefaultHashMapCapacity, |
| 238 | allocator); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 239 | for (int i = properties()->length() - 1; i >= 0; i--) { |
| 240 | ObjectLiteral::Property* property = properties()->at(i); |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 241 | Literal* literal = property->key(); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 242 | if (literal->value()->IsNull()) continue; |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 243 | uint32_t hash = literal->Hash(); |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 244 | // If the key of a computed property is in the table, do not emit |
| 245 | // a store for the property later. |
danno@chromium.org | c00ec2b | 2013-08-14 17:13:49 +0000 | [diff] [blame] | 246 | if ((property->kind() == ObjectLiteral::Property::MATERIALIZED_LITERAL || |
| 247 | property->kind() == ObjectLiteral::Property::COMPUTED) && |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 248 | table.Lookup(literal, hash, false, allocator) != NULL) { |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 249 | property->set_emit_store(false); |
| 250 | } else { |
| 251 | // Add key to the table. |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 252 | table.Lookup(literal, hash, true, allocator); |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 253 | } |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 254 | } |
| 255 | } |
| 256 | |
| 257 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 258 | void TargetCollector::AddTarget(Label* target, Zone* zone) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 259 | // Add the label to the collector, but discard duplicates. |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 260 | int length = targets_.length(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 261 | for (int i = 0; i < length; i++) { |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 262 | if (targets_[i] == target) return; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 263 | } |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 264 | targets_.Add(target, zone); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 265 | } |
| 266 | |
| 267 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 268 | void UnaryOperation::RecordToBooleanTypeFeedback(TypeFeedbackOracle* oracle) { |
| 269 | // TODO(olivf) If this Operation is used in a test context, then the |
| 270 | // expression has a ToBoolean stub and we want to collect the type |
| 271 | // information. However the GraphBuilder expects it to be on the instruction |
| 272 | // corresponding to the TestContext, therefore we have to store it here and |
| 273 | // not on the operand. |
| 274 | set_to_boolean_types(oracle->ToBooleanTypes(expression()->test_id())); |
| 275 | } |
| 276 | |
| 277 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 278 | void BinaryOperation::RecordToBooleanTypeFeedback(TypeFeedbackOracle* oracle) { |
| 279 | // TODO(olivf) If this Operation is used in a test context, then the right |
| 280 | // hand side has a ToBoolean stub and we want to collect the type information. |
| 281 | // However the GraphBuilder expects it to be on the instruction corresponding |
| 282 | // to the TestContext, therefore we have to store it here and not on the |
| 283 | // right hand operand. |
| 284 | set_to_boolean_types(oracle->ToBooleanTypes(right()->test_id())); |
| 285 | } |
| 286 | |
| 287 | |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 288 | bool BinaryOperation::ResultOverwriteAllowed() { |
| 289 | switch (op_) { |
| 290 | case Token::COMMA: |
| 291 | case Token::OR: |
| 292 | case Token::AND: |
| 293 | return false; |
| 294 | case Token::BIT_OR: |
| 295 | case Token::BIT_XOR: |
| 296 | case Token::BIT_AND: |
| 297 | case Token::SHL: |
| 298 | case Token::SAR: |
| 299 | case Token::SHR: |
| 300 | case Token::ADD: |
| 301 | case Token::SUB: |
| 302 | case Token::MUL: |
| 303 | case Token::DIV: |
| 304 | case Token::MOD: |
| 305 | return true; |
| 306 | default: |
| 307 | UNREACHABLE(); |
| 308 | } |
| 309 | return false; |
| 310 | } |
| 311 | |
| 312 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 313 | static bool IsTypeof(Expression* expr) { |
| 314 | UnaryOperation* maybe_unary = expr->AsUnaryOperation(); |
| 315 | return maybe_unary != NULL && maybe_unary->op() == Token::TYPEOF; |
| 316 | } |
| 317 | |
| 318 | |
| 319 | // Check for the pattern: typeof <expression> equals <string literal>. |
| 320 | static bool MatchLiteralCompareTypeof(Expression* left, |
| 321 | Token::Value op, |
| 322 | Expression* right, |
| 323 | Expression** expr, |
| 324 | Handle<String>* check) { |
| 325 | if (IsTypeof(left) && right->IsStringLiteral() && Token::IsEqualityOp(op)) { |
| 326 | *expr = left->AsUnaryOperation()->expression(); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 327 | *check = Handle<String>::cast(right->AsLiteral()->value()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 328 | return true; |
| 329 | } |
| 330 | return false; |
| 331 | } |
| 332 | |
| 333 | |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 334 | bool CompareOperation::IsLiteralCompareTypeof(Expression** expr, |
| 335 | Handle<String>* check) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 336 | return MatchLiteralCompareTypeof(left_, op_, right_, expr, check) || |
| 337 | MatchLiteralCompareTypeof(right_, op_, left_, expr, check); |
| 338 | } |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 339 | |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 340 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 341 | static bool IsVoidOfLiteral(Expression* expr) { |
| 342 | UnaryOperation* maybe_unary = expr->AsUnaryOperation(); |
| 343 | return maybe_unary != NULL && |
| 344 | maybe_unary->op() == Token::VOID && |
| 345 | maybe_unary->expression()->AsLiteral() != NULL; |
| 346 | } |
| 347 | |
| 348 | |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 349 | // Check for the pattern: void <literal> equals <expression> or |
| 350 | // undefined equals <expression> |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 351 | static bool MatchLiteralCompareUndefined(Expression* left, |
| 352 | Token::Value op, |
| 353 | Expression* right, |
jkummerow@chromium.org | 96a3c51 | 2013-07-18 17:02:47 +0000 | [diff] [blame] | 354 | Expression** expr, |
| 355 | Isolate* isolate) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 356 | if (IsVoidOfLiteral(left) && Token::IsEqualityOp(op)) { |
| 357 | *expr = right; |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 358 | return true; |
| 359 | } |
jkummerow@chromium.org | 96a3c51 | 2013-07-18 17:02:47 +0000 | [diff] [blame] | 360 | if (left->IsUndefinedLiteral(isolate) && Token::IsEqualityOp(op)) { |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 361 | *expr = right; |
| 362 | return true; |
| 363 | } |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 364 | return false; |
| 365 | } |
| 366 | |
| 367 | |
jkummerow@chromium.org | 96a3c51 | 2013-07-18 17:02:47 +0000 | [diff] [blame] | 368 | bool CompareOperation::IsLiteralCompareUndefined( |
| 369 | Expression** expr, Isolate* isolate) { |
| 370 | return MatchLiteralCompareUndefined(left_, op_, right_, expr, isolate) || |
| 371 | MatchLiteralCompareUndefined(right_, op_, left_, expr, isolate); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 372 | } |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 373 | |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 374 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 375 | // Check for the pattern: null equals <expression> |
| 376 | static bool MatchLiteralCompareNull(Expression* left, |
| 377 | Token::Value op, |
| 378 | Expression* right, |
| 379 | Expression** expr) { |
| 380 | if (left->IsNullLiteral() && Token::IsEqualityOp(op)) { |
| 381 | *expr = right; |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 382 | return true; |
| 383 | } |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 384 | return false; |
| 385 | } |
| 386 | |
| 387 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 388 | bool CompareOperation::IsLiteralCompareNull(Expression** expr) { |
| 389 | return MatchLiteralCompareNull(left_, op_, right_, expr) || |
| 390 | MatchLiteralCompareNull(right_, op_, left_, expr); |
| 391 | } |
| 392 | |
| 393 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 394 | // ---------------------------------------------------------------------------- |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 395 | // Inlining support |
| 396 | |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 397 | bool Declaration::IsInlineable() const { |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 398 | return proxy()->var()->IsStackAllocated(); |
| 399 | } |
| 400 | |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 401 | bool FunctionDeclaration::IsInlineable() const { |
| 402 | return false; |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 403 | } |
| 404 | |
| 405 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 406 | // ---------------------------------------------------------------------------- |
| 407 | // Recording of type feedback |
| 408 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 409 | // TODO(rossberg): all RecordTypeFeedback functions should disappear |
| 410 | // once we use the common type field in the AST consistently. |
| 411 | |
| 412 | |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 413 | void ForInStatement::RecordTypeFeedback(TypeFeedbackOracle* oracle) { |
| 414 | for_in_type_ = static_cast<ForInType>(oracle->ForInType(this)); |
| 415 | } |
| 416 | |
| 417 | |
| 418 | void Expression::RecordToBooleanTypeFeedback(TypeFeedbackOracle* oracle) { |
| 419 | to_boolean_types_ = oracle->ToBooleanTypes(test_id()); |
| 420 | } |
| 421 | |
| 422 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 423 | void Property::RecordTypeFeedback(TypeFeedbackOracle* oracle, |
| 424 | Zone* zone) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 425 | // Record type feedback from the oracle in the AST. |
jkummerow@chromium.org | 531dfe8 | 2012-03-20 13:01:16 +0000 | [diff] [blame] | 426 | is_uninitialized_ = oracle->LoadIsUninitialized(this); |
| 427 | if (is_uninitialized_) return; |
| 428 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 429 | is_monomorphic_ = oracle->LoadIsMonomorphicNormal(this); |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 430 | receiver_types_.Clear(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 431 | if (key()->IsPropertyName()) { |
mvstanton@chromium.org | 6bec009 | 2013-01-23 13:46:53 +0000 | [diff] [blame] | 432 | FunctionPrototypeStub proto_stub(Code::LOAD_IC); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 433 | if (oracle->LoadIsStub(this, &proto_stub)) { |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 434 | is_function_prototype_ = true; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 435 | } else { |
| 436 | Literal* lit_key = key()->AsLiteral(); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 437 | ASSERT(lit_key != NULL && lit_key->value()->IsString()); |
| 438 | Handle<String> name = Handle<String>::cast(lit_key->value()); |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 439 | oracle->LoadReceiverTypes(this, name, &receiver_types_); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 440 | } |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 441 | } else if (oracle->LoadIsBuiltin(this, Builtins::kKeyedLoadIC_String)) { |
whesse@chromium.org | b08986c | 2011-03-14 16:13:42 +0000 | [diff] [blame] | 442 | is_string_access_ = true; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 443 | } else if (is_monomorphic_) { |
mstarzinger@chromium.org | a2e1a40 | 2013-10-15 08:25:05 +0000 | [diff] [blame] | 444 | receiver_types_.Add(oracle->LoadMonomorphicReceiverType(this), zone); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 445 | } else if (oracle->LoadIsPolymorphic(this)) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 446 | receiver_types_.Reserve(kMaxKeyedPolymorphism, zone); |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 447 | oracle->CollectKeyedReceiverTypes(PropertyFeedbackId(), &receiver_types_); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 448 | } |
| 449 | } |
| 450 | |
| 451 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 452 | void Assignment::RecordTypeFeedback(TypeFeedbackOracle* oracle, |
| 453 | Zone* zone) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 454 | Property* prop = target()->AsProperty(); |
| 455 | ASSERT(prop != NULL); |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 456 | TypeFeedbackId id = AssignmentFeedbackId(); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 457 | is_uninitialized_ = oracle->StoreIsUninitialized(id); |
| 458 | if (is_uninitialized_) return; |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 459 | is_monomorphic_ = oracle->StoreIsMonomorphicNormal(id); |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 460 | receiver_types_.Clear(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 461 | if (prop->key()->IsPropertyName()) { |
| 462 | Literal* lit_key = prop->key()->AsLiteral(); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 463 | ASSERT(lit_key != NULL && lit_key->value()->IsString()); |
| 464 | Handle<String> name = Handle<String>::cast(lit_key->value()); |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 465 | oracle->StoreReceiverTypes(this, name, &receiver_types_); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 466 | } else if (is_monomorphic_) { |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 467 | // Record receiver type for monomorphic keyed stores. |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 468 | receiver_types_.Add(oracle->StoreMonomorphicReceiverType(id), zone); |
jkummerow@chromium.org | 7bd87f0 | 2013-03-20 18:06:29 +0000 | [diff] [blame] | 469 | store_mode_ = oracle->GetStoreMode(id); |
danno@chromium.org | bee5199 | 2013-07-10 14:57:15 +0000 | [diff] [blame] | 470 | } else if (oracle->StoreIsKeyedPolymorphic(id)) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 471 | receiver_types_.Reserve(kMaxKeyedPolymorphism, zone); |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 472 | oracle->CollectKeyedReceiverTypes(id, &receiver_types_); |
jkummerow@chromium.org | 7bd87f0 | 2013-03-20 18:06:29 +0000 | [diff] [blame] | 473 | store_mode_ = oracle->GetStoreMode(id); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 474 | } |
| 475 | } |
| 476 | |
| 477 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 478 | void CountOperation::RecordTypeFeedback(TypeFeedbackOracle* oracle, |
| 479 | Zone* zone) { |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 480 | TypeFeedbackId id = CountStoreFeedbackId(); |
| 481 | is_monomorphic_ = oracle->StoreIsMonomorphicNormal(id); |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 482 | receiver_types_.Clear(); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 483 | if (is_monomorphic_) { |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 484 | // Record receiver type for monomorphic keyed stores. |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 485 | receiver_types_.Add( |
| 486 | oracle->StoreMonomorphicReceiverType(id), zone); |
danno@chromium.org | bee5199 | 2013-07-10 14:57:15 +0000 | [diff] [blame] | 487 | } else if (oracle->StoreIsKeyedPolymorphic(id)) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 488 | receiver_types_.Reserve(kMaxKeyedPolymorphism, zone); |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 489 | oracle->CollectKeyedReceiverTypes(id, &receiver_types_); |
danno@chromium.org | bee5199 | 2013-07-10 14:57:15 +0000 | [diff] [blame] | 490 | } else { |
| 491 | oracle->CollectPolymorphicStoreReceiverTypes(id, &receiver_types_); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 492 | } |
jkummerow@chromium.org | 7bd87f0 | 2013-03-20 18:06:29 +0000 | [diff] [blame] | 493 | store_mode_ = oracle->GetStoreMode(id); |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 494 | type_ = oracle->IncrementType(this); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 495 | } |
| 496 | |
| 497 | |
| 498 | void CaseClause::RecordTypeFeedback(TypeFeedbackOracle* oracle) { |
danno@chromium.org | 4172848 | 2013-06-12 22:31:22 +0000 | [diff] [blame] | 499 | compare_type_ = oracle->ClauseType(CompareId()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 500 | } |
| 501 | |
| 502 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 503 | bool Call::ComputeTarget(Handle<Map> type, Handle<String> name) { |
rossberg@chromium.org | 994edf6 | 2012-02-06 10:12:55 +0000 | [diff] [blame] | 504 | // 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] | 505 | if (type->has_named_interceptor()) return false; |
| 506 | |
ager@chromium.org | 0ee099b | 2011-01-25 14:06:47 +0000 | [diff] [blame] | 507 | if (check_type_ == RECEIVER_MAP_CHECK) { |
rossberg@chromium.org | 994edf6 | 2012-02-06 10:12:55 +0000 | [diff] [blame] | 508 | // For primitive checks the holder is set up to point to the corresponding |
| 509 | // prototype object, i.e. one step of the algorithm below has been already |
| 510 | // performed. For non-primitive checks we clear it to allow computing |
| 511 | // targets for polymorphic calls. |
ager@chromium.org | 0ee099b | 2011-01-25 14:06:47 +0000 | [diff] [blame] | 512 | holder_ = Handle<JSObject>::null(); |
| 513 | } |
rossberg@chromium.org | 994edf6 | 2012-02-06 10:12:55 +0000 | [diff] [blame] | 514 | LookupResult lookup(type->GetIsolate()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 515 | while (true) { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 516 | // If a dictionary map is found in the prototype chain before the actual |
| 517 | // target, a new target can always appear. In that case, bail out. |
| 518 | // TODO(verwaest): Alternatively a runtime negative lookup on the normal |
| 519 | // receiver or prototype could be added. |
| 520 | if (type->is_dictionary_map()) return false; |
yangguo@chromium.org | 99aa490 | 2012-07-06 16:21:55 +0000 | [diff] [blame] | 521 | type->LookupDescriptor(NULL, *name, &lookup); |
ulan@chromium.org | 9a21ec4 | 2012-03-06 08:42:24 +0000 | [diff] [blame] | 522 | if (lookup.IsFound()) { |
| 523 | switch (lookup.type()) { |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 524 | case CONSTANT: { |
ulan@chromium.org | 9a21ec4 | 2012-03-06 08:42:24 +0000 | [diff] [blame] | 525 | // We surely know the target for a constant function. |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 526 | Handle<Object> constant(lookup.GetConstantFromMap(*type), |
| 527 | type->GetIsolate()); |
| 528 | if (constant->IsJSFunction()) { |
| 529 | target_ = Handle<JSFunction>::cast(constant); |
| 530 | return true; |
| 531 | } |
| 532 | // Fall through. |
| 533 | } |
ulan@chromium.org | 9a21ec4 | 2012-03-06 08:42:24 +0000 | [diff] [blame] | 534 | case NORMAL: |
| 535 | case FIELD: |
| 536 | case CALLBACKS: |
| 537 | case HANDLER: |
| 538 | case INTERCEPTOR: |
| 539 | // We don't know the target. |
| 540 | return false; |
yangguo@chromium.org | 99aa490 | 2012-07-06 16:21:55 +0000 | [diff] [blame] | 541 | case TRANSITION: |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 542 | case NONEXISTENT: |
| 543 | UNREACHABLE(); |
| 544 | break; |
rossberg@chromium.org | 994edf6 | 2012-02-06 10:12:55 +0000 | [diff] [blame] | 545 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 546 | } |
rossberg@chromium.org | 994edf6 | 2012-02-06 10:12:55 +0000 | [diff] [blame] | 547 | // If we reach the end of the prototype chain, we don't know the target. |
| 548 | if (!type->prototype()->IsJSObject()) return false; |
| 549 | // Go up the prototype chain, recording where we are currently. |
| 550 | holder_ = Handle<JSObject>(JSObject::cast(type->prototype())); |
| 551 | type = Handle<Map>(holder()->map()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 552 | } |
| 553 | } |
| 554 | |
| 555 | |
| 556 | bool Call::ComputeGlobalTarget(Handle<GlobalObject> global, |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 557 | LookupResult* lookup) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 558 | target_ = Handle<JSFunction>::null(); |
danno@chromium.org | 4172848 | 2013-06-12 22:31:22 +0000 | [diff] [blame] | 559 | cell_ = Handle<Cell>::null(); |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 560 | ASSERT(lookup->IsFound() && |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 561 | lookup->type() == NORMAL && |
| 562 | lookup->holder() == *global); |
danno@chromium.org | 4172848 | 2013-06-12 22:31:22 +0000 | [diff] [blame] | 563 | cell_ = Handle<Cell>(global->GetPropertyCell(lookup)); |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 564 | if (cell_->value()->IsJSFunction()) { |
| 565 | Handle<JSFunction> candidate(JSFunction::cast(cell_->value())); |
| 566 | // If the function is in new space we assume it's more likely to |
| 567 | // change and thus prefer the general IC code. |
hpayer@chromium.org | c5d4971 | 2013-09-11 08:25:48 +0000 | [diff] [blame] | 568 | if (!lookup->isolate()->heap()->InNewSpace(*candidate)) { |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 569 | target_ = candidate; |
| 570 | return true; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 571 | } |
| 572 | } |
| 573 | return false; |
| 574 | } |
| 575 | |
| 576 | |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 577 | Handle<JSObject> Call::GetPrototypeForPrimitiveCheck( |
| 578 | CheckType check, Isolate* isolate) { |
| 579 | v8::internal::Context* native_context = isolate->context()->native_context(); |
| 580 | JSFunction* function = NULL; |
| 581 | switch (check) { |
| 582 | case RECEIVER_MAP_CHECK: |
| 583 | UNREACHABLE(); |
| 584 | break; |
| 585 | case STRING_CHECK: |
| 586 | function = native_context->string_function(); |
| 587 | break; |
| 588 | case SYMBOL_CHECK: |
| 589 | function = native_context->symbol_function(); |
| 590 | break; |
| 591 | case NUMBER_CHECK: |
| 592 | function = native_context->number_function(); |
| 593 | break; |
| 594 | case BOOLEAN_CHECK: |
| 595 | function = native_context->boolean_function(); |
| 596 | break; |
| 597 | } |
| 598 | ASSERT(function != NULL); |
| 599 | return Handle<JSObject>(JSObject::cast(function->instance_prototype())); |
| 600 | } |
| 601 | |
| 602 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 603 | void Call::RecordTypeFeedback(TypeFeedbackOracle* oracle, |
| 604 | CallKind call_kind) { |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 605 | is_monomorphic_ = oracle->CallIsMonomorphic(this); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 606 | Property* property = expression()->AsProperty(); |
| 607 | if (property == NULL) { |
| 608 | // Function call. Specialize for monomorphic calls. |
| 609 | if (is_monomorphic_) target_ = oracle->GetCallTarget(this); |
| 610 | } else { |
| 611 | // Method call. Specialize for the receiver types seen at runtime. |
| 612 | Literal* key = property->key()->AsLiteral(); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 613 | ASSERT(key != NULL && key->value()->IsString()); |
| 614 | Handle<String> name = Handle<String>::cast(key->value()); |
dslomov@chromium.org | 639bac0 | 2013-09-09 11:58:54 +0000 | [diff] [blame] | 615 | check_type_ = oracle->GetCallCheckType(this); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 616 | receiver_types_.Clear(); |
dslomov@chromium.org | 639bac0 | 2013-09-09 11:58:54 +0000 | [diff] [blame] | 617 | if (check_type_ == RECEIVER_MAP_CHECK) { |
| 618 | oracle->CallReceiverTypes(this, name, call_kind, &receiver_types_); |
| 619 | is_monomorphic_ = is_monomorphic_ && receiver_types_.length() > 0; |
| 620 | } else { |
| 621 | holder_ = GetPrototypeForPrimitiveCheck(check_type_, oracle->isolate()); |
| 622 | receiver_types_.Add(handle(holder_->map()), oracle->zone()); |
| 623 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 624 | #ifdef DEBUG |
| 625 | if (FLAG_enable_slow_asserts) { |
| 626 | int length = receiver_types_.length(); |
| 627 | for (int i = 0; i < length; i++) { |
| 628 | Handle<Map> map = receiver_types_.at(i); |
| 629 | ASSERT(!map.is_null() && *map != NULL); |
| 630 | } |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 631 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 632 | #endif |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 633 | if (is_monomorphic_) { |
dslomov@chromium.org | 639bac0 | 2013-09-09 11:58:54 +0000 | [diff] [blame] | 634 | Handle<Map> map = receiver_types_.first(); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 635 | is_monomorphic_ = ComputeTarget(map, name); |
| 636 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 637 | } |
| 638 | } |
| 639 | |
| 640 | |
ulan@chromium.org | 967e270 | 2012-02-28 09:49:15 +0000 | [diff] [blame] | 641 | void CallNew::RecordTypeFeedback(TypeFeedbackOracle* oracle) { |
danno@chromium.org | 1fd77d5 | 2013-06-07 16:01:45 +0000 | [diff] [blame] | 642 | allocation_info_cell_ = oracle->GetCallNewAllocationInfoCell(this); |
ulan@chromium.org | 967e270 | 2012-02-28 09:49:15 +0000 | [diff] [blame] | 643 | is_monomorphic_ = oracle->CallNewIsMonomorphic(this); |
| 644 | if (is_monomorphic_) { |
| 645 | target_ = oracle->GetCallNewTarget(this); |
danno@chromium.org | 1fd77d5 | 2013-06-07 16:01:45 +0000 | [diff] [blame] | 646 | Object* value = allocation_info_cell_->value(); |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 647 | ASSERT(!value->IsTheHole()); |
danno@chromium.org | bee5199 | 2013-07-10 14:57:15 +0000 | [diff] [blame] | 648 | if (value->IsAllocationSite()) { |
| 649 | AllocationSite* site = AllocationSite::cast(value); |
| 650 | elements_kind_ = site->GetElementsKind(); |
danno@chromium.org | 1fd77d5 | 2013-06-07 16:01:45 +0000 | [diff] [blame] | 651 | } |
ulan@chromium.org | 967e270 | 2012-02-28 09:49:15 +0000 | [diff] [blame] | 652 | } |
| 653 | } |
| 654 | |
| 655 | |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 656 | void ObjectLiteral::Property::RecordTypeFeedback(TypeFeedbackOracle* oracle) { |
| 657 | receiver_type_ = oracle->ObjectLiteralStoreIsMonomorphic(this) |
| 658 | ? oracle->GetObjectLiteralStoreMap(this) |
| 659 | : Handle<Map>::null(); |
| 660 | } |
| 661 | |
| 662 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 663 | // ---------------------------------------------------------------------------- |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 664 | // Implementation of AstVisitor |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 665 | |
christian.plesner.hansen@gmail.com | 9d58c2b | 2009-10-16 11:48:38 +0000 | [diff] [blame] | 666 | void AstVisitor::VisitDeclarations(ZoneList<Declaration*>* declarations) { |
| 667 | for (int i = 0; i < declarations->length(); i++) { |
| 668 | Visit(declarations->at(i)); |
| 669 | } |
| 670 | } |
| 671 | |
| 672 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 673 | void AstVisitor::VisitStatements(ZoneList<Statement*>* statements) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 674 | for (int i = 0; i < statements->length(); i++) { |
jkummerow@chromium.org | dc94e19 | 2013-08-30 11:35:42 +0000 | [diff] [blame] | 675 | Statement* stmt = statements->at(i); |
| 676 | Visit(stmt); |
| 677 | if (stmt->IsJump()) break; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 678 | } |
| 679 | } |
| 680 | |
| 681 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 682 | void AstVisitor::VisitExpressions(ZoneList<Expression*>* expressions) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 683 | for (int i = 0; i < expressions->length(); i++) { |
| 684 | // The variable statement visiting code may pass NULL expressions |
| 685 | // to this code. Maybe this should be handled by introducing an |
| 686 | // undefined expression or literal? Revisit this code if this |
| 687 | // changes |
| 688 | Expression* expression = expressions->at(i); |
| 689 | if (expression != NULL) Visit(expression); |
| 690 | } |
| 691 | } |
| 692 | |
| 693 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 694 | // ---------------------------------------------------------------------------- |
| 695 | // Regular expressions |
| 696 | |
| 697 | #define MAKE_ACCEPT(Name) \ |
| 698 | void* RegExp##Name::Accept(RegExpVisitor* visitor, void* data) { \ |
| 699 | return visitor->Visit##Name(this, data); \ |
| 700 | } |
| 701 | FOR_EACH_REG_EXP_TREE_TYPE(MAKE_ACCEPT) |
| 702 | #undef MAKE_ACCEPT |
| 703 | |
| 704 | #define MAKE_TYPE_CASE(Name) \ |
| 705 | RegExp##Name* RegExpTree::As##Name() { \ |
| 706 | return NULL; \ |
| 707 | } \ |
| 708 | bool RegExpTree::Is##Name() { return false; } |
| 709 | FOR_EACH_REG_EXP_TREE_TYPE(MAKE_TYPE_CASE) |
| 710 | #undef MAKE_TYPE_CASE |
| 711 | |
| 712 | #define MAKE_TYPE_CASE(Name) \ |
| 713 | RegExp##Name* RegExp##Name::As##Name() { \ |
| 714 | return this; \ |
| 715 | } \ |
| 716 | bool RegExp##Name::Is##Name() { return true; } |
| 717 | FOR_EACH_REG_EXP_TREE_TYPE(MAKE_TYPE_CASE) |
| 718 | #undef MAKE_TYPE_CASE |
| 719 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 720 | |
ager@chromium.org | 3291210 | 2009-01-16 10:38:43 +0000 | [diff] [blame] | 721 | static Interval ListCaptureRegisters(ZoneList<RegExpTree*>* children) { |
| 722 | Interval result = Interval::Empty(); |
| 723 | for (int i = 0; i < children->length(); i++) |
| 724 | result = result.Union(children->at(i)->CaptureRegisters()); |
| 725 | return result; |
| 726 | } |
| 727 | |
| 728 | |
| 729 | Interval RegExpAlternative::CaptureRegisters() { |
| 730 | return ListCaptureRegisters(nodes()); |
| 731 | } |
| 732 | |
| 733 | |
| 734 | Interval RegExpDisjunction::CaptureRegisters() { |
| 735 | return ListCaptureRegisters(alternatives()); |
| 736 | } |
| 737 | |
| 738 | |
| 739 | Interval RegExpLookahead::CaptureRegisters() { |
| 740 | return body()->CaptureRegisters(); |
| 741 | } |
| 742 | |
| 743 | |
| 744 | Interval RegExpCapture::CaptureRegisters() { |
| 745 | Interval self(StartRegister(index()), EndRegister(index())); |
| 746 | return self.Union(body()->CaptureRegisters()); |
| 747 | } |
| 748 | |
| 749 | |
| 750 | Interval RegExpQuantifier::CaptureRegisters() { |
| 751 | return body()->CaptureRegisters(); |
| 752 | } |
| 753 | |
| 754 | |
whesse@chromium.org | 4a5224e | 2010-10-20 12:37:07 +0000 | [diff] [blame] | 755 | bool RegExpAssertion::IsAnchoredAtStart() { |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 756 | return assertion_type() == RegExpAssertion::START_OF_INPUT; |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 757 | } |
| 758 | |
| 759 | |
whesse@chromium.org | 4a5224e | 2010-10-20 12:37:07 +0000 | [diff] [blame] | 760 | bool RegExpAssertion::IsAnchoredAtEnd() { |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 761 | return assertion_type() == RegExpAssertion::END_OF_INPUT; |
whesse@chromium.org | 4a5224e | 2010-10-20 12:37:07 +0000 | [diff] [blame] | 762 | } |
| 763 | |
| 764 | |
| 765 | bool RegExpAlternative::IsAnchoredAtStart() { |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 766 | ZoneList<RegExpTree*>* nodes = this->nodes(); |
| 767 | for (int i = 0; i < nodes->length(); i++) { |
| 768 | RegExpTree* node = nodes->at(i); |
whesse@chromium.org | 4a5224e | 2010-10-20 12:37:07 +0000 | [diff] [blame] | 769 | if (node->IsAnchoredAtStart()) { return true; } |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 770 | if (node->max_match() > 0) { return false; } |
| 771 | } |
| 772 | return false; |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 773 | } |
| 774 | |
| 775 | |
whesse@chromium.org | 4a5224e | 2010-10-20 12:37:07 +0000 | [diff] [blame] | 776 | bool RegExpAlternative::IsAnchoredAtEnd() { |
| 777 | ZoneList<RegExpTree*>* nodes = this->nodes(); |
| 778 | for (int i = nodes->length() - 1; i >= 0; i--) { |
| 779 | RegExpTree* node = nodes->at(i); |
| 780 | if (node->IsAnchoredAtEnd()) { return true; } |
| 781 | if (node->max_match() > 0) { return false; } |
| 782 | } |
| 783 | return false; |
| 784 | } |
| 785 | |
| 786 | |
| 787 | bool RegExpDisjunction::IsAnchoredAtStart() { |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 788 | ZoneList<RegExpTree*>* alternatives = this->alternatives(); |
| 789 | for (int i = 0; i < alternatives->length(); i++) { |
whesse@chromium.org | 4a5224e | 2010-10-20 12:37:07 +0000 | [diff] [blame] | 790 | if (!alternatives->at(i)->IsAnchoredAtStart()) |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 791 | return false; |
| 792 | } |
| 793 | return true; |
| 794 | } |
| 795 | |
| 796 | |
whesse@chromium.org | 4a5224e | 2010-10-20 12:37:07 +0000 | [diff] [blame] | 797 | bool RegExpDisjunction::IsAnchoredAtEnd() { |
| 798 | ZoneList<RegExpTree*>* alternatives = this->alternatives(); |
| 799 | for (int i = 0; i < alternatives->length(); i++) { |
| 800 | if (!alternatives->at(i)->IsAnchoredAtEnd()) |
| 801 | return false; |
| 802 | } |
| 803 | return true; |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 804 | } |
| 805 | |
| 806 | |
whesse@chromium.org | 4a5224e | 2010-10-20 12:37:07 +0000 | [diff] [blame] | 807 | bool RegExpLookahead::IsAnchoredAtStart() { |
| 808 | return is_positive() && body()->IsAnchoredAtStart(); |
| 809 | } |
| 810 | |
| 811 | |
| 812 | bool RegExpCapture::IsAnchoredAtStart() { |
| 813 | return body()->IsAnchoredAtStart(); |
| 814 | } |
| 815 | |
| 816 | |
| 817 | bool RegExpCapture::IsAnchoredAtEnd() { |
| 818 | return body()->IsAnchoredAtEnd(); |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 819 | } |
| 820 | |
| 821 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 822 | // Convert regular expression trees to a simple sexp representation. |
| 823 | // This representation should be different from the input grammar |
| 824 | // in as many cases as possible, to make it more difficult for incorrect |
| 825 | // parses to look as correct ones which is likely if the input and |
| 826 | // output formats are alike. |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 827 | class RegExpUnparser V8_FINAL : public RegExpVisitor { |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 828 | public: |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 829 | explicit RegExpUnparser(Zone* zone); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 830 | void VisitCharacterRange(CharacterRange that); |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 831 | SmartArrayPointer<const char> ToString() { return stream_.ToCString(); } |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 832 | #define MAKE_CASE(Name) virtual void* Visit##Name(RegExp##Name*, \ |
| 833 | void* data) V8_OVERRIDE; |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 834 | FOR_EACH_REG_EXP_TREE_TYPE(MAKE_CASE) |
| 835 | #undef MAKE_CASE |
| 836 | private: |
| 837 | StringStream* stream() { return &stream_; } |
| 838 | HeapStringAllocator alloc_; |
| 839 | StringStream stream_; |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 840 | Zone* zone_; |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 841 | }; |
| 842 | |
| 843 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 844 | RegExpUnparser::RegExpUnparser(Zone* zone) : stream_(&alloc_), zone_(zone) { |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 845 | } |
| 846 | |
| 847 | |
| 848 | void* RegExpUnparser::VisitDisjunction(RegExpDisjunction* that, void* data) { |
| 849 | stream()->Add("(|"); |
| 850 | for (int i = 0; i < that->alternatives()->length(); i++) { |
| 851 | stream()->Add(" "); |
| 852 | that->alternatives()->at(i)->Accept(this, data); |
| 853 | } |
| 854 | stream()->Add(")"); |
| 855 | return NULL; |
| 856 | } |
| 857 | |
| 858 | |
| 859 | void* RegExpUnparser::VisitAlternative(RegExpAlternative* that, void* data) { |
| 860 | stream()->Add("(:"); |
| 861 | for (int i = 0; i < that->nodes()->length(); i++) { |
| 862 | stream()->Add(" "); |
| 863 | that->nodes()->at(i)->Accept(this, data); |
| 864 | } |
| 865 | stream()->Add(")"); |
| 866 | return NULL; |
| 867 | } |
| 868 | |
| 869 | |
| 870 | void RegExpUnparser::VisitCharacterRange(CharacterRange that) { |
| 871 | stream()->Add("%k", that.from()); |
| 872 | if (!that.IsSingleton()) { |
| 873 | stream()->Add("-%k", that.to()); |
| 874 | } |
| 875 | } |
| 876 | |
| 877 | |
| 878 | |
| 879 | void* RegExpUnparser::VisitCharacterClass(RegExpCharacterClass* that, |
| 880 | void* data) { |
| 881 | if (that->is_negated()) |
| 882 | stream()->Add("^"); |
| 883 | stream()->Add("["); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 884 | for (int i = 0; i < that->ranges(zone_)->length(); i++) { |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 885 | if (i > 0) stream()->Add(" "); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 886 | VisitCharacterRange(that->ranges(zone_)->at(i)); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 887 | } |
| 888 | stream()->Add("]"); |
| 889 | return NULL; |
| 890 | } |
| 891 | |
| 892 | |
| 893 | void* RegExpUnparser::VisitAssertion(RegExpAssertion* that, void* data) { |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 894 | switch (that->assertion_type()) { |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 895 | case RegExpAssertion::START_OF_INPUT: |
| 896 | stream()->Add("@^i"); |
| 897 | break; |
| 898 | case RegExpAssertion::END_OF_INPUT: |
| 899 | stream()->Add("@$i"); |
| 900 | break; |
| 901 | case RegExpAssertion::START_OF_LINE: |
| 902 | stream()->Add("@^l"); |
| 903 | break; |
| 904 | case RegExpAssertion::END_OF_LINE: |
| 905 | stream()->Add("@$l"); |
| 906 | break; |
| 907 | case RegExpAssertion::BOUNDARY: |
| 908 | stream()->Add("@b"); |
| 909 | break; |
| 910 | case RegExpAssertion::NON_BOUNDARY: |
| 911 | stream()->Add("@B"); |
| 912 | break; |
| 913 | } |
| 914 | return NULL; |
| 915 | } |
| 916 | |
| 917 | |
| 918 | void* RegExpUnparser::VisitAtom(RegExpAtom* that, void* data) { |
| 919 | stream()->Add("'"); |
| 920 | Vector<const uc16> chardata = that->data(); |
| 921 | for (int i = 0; i < chardata.length(); i++) { |
| 922 | stream()->Add("%k", chardata[i]); |
| 923 | } |
| 924 | stream()->Add("'"); |
| 925 | return NULL; |
| 926 | } |
| 927 | |
| 928 | |
| 929 | void* RegExpUnparser::VisitText(RegExpText* that, void* data) { |
| 930 | if (that->elements()->length() == 1) { |
rossberg@chromium.org | 9259716 | 2013-08-23 13:28:00 +0000 | [diff] [blame] | 931 | that->elements()->at(0).tree()->Accept(this, data); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 932 | } else { |
| 933 | stream()->Add("(!"); |
| 934 | for (int i = 0; i < that->elements()->length(); i++) { |
| 935 | stream()->Add(" "); |
rossberg@chromium.org | 9259716 | 2013-08-23 13:28:00 +0000 | [diff] [blame] | 936 | that->elements()->at(i).tree()->Accept(this, data); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 937 | } |
| 938 | stream()->Add(")"); |
| 939 | } |
| 940 | return NULL; |
| 941 | } |
| 942 | |
| 943 | |
| 944 | void* RegExpUnparser::VisitQuantifier(RegExpQuantifier* that, void* data) { |
| 945 | stream()->Add("(# %i ", that->min()); |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 946 | if (that->max() == RegExpTree::kInfinity) { |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 947 | stream()->Add("- "); |
| 948 | } else { |
| 949 | stream()->Add("%i ", that->max()); |
| 950 | } |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 951 | stream()->Add(that->is_greedy() ? "g " : that->is_possessive() ? "p " : "n "); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 952 | that->body()->Accept(this, data); |
| 953 | stream()->Add(")"); |
| 954 | return NULL; |
| 955 | } |
| 956 | |
| 957 | |
| 958 | void* RegExpUnparser::VisitCapture(RegExpCapture* that, void* data) { |
| 959 | stream()->Add("(^ "); |
| 960 | that->body()->Accept(this, data); |
| 961 | stream()->Add(")"); |
| 962 | return NULL; |
| 963 | } |
| 964 | |
| 965 | |
| 966 | void* RegExpUnparser::VisitLookahead(RegExpLookahead* that, void* data) { |
| 967 | stream()->Add("(-> "); |
| 968 | stream()->Add(that->is_positive() ? "+ " : "- "); |
| 969 | that->body()->Accept(this, data); |
| 970 | stream()->Add(")"); |
| 971 | return NULL; |
| 972 | } |
| 973 | |
| 974 | |
| 975 | void* RegExpUnparser::VisitBackReference(RegExpBackReference* that, |
| 976 | void* data) { |
| 977 | stream()->Add("(<- %i)", that->index()); |
| 978 | return NULL; |
| 979 | } |
| 980 | |
| 981 | |
| 982 | void* RegExpUnparser::VisitEmpty(RegExpEmpty* that, void* data) { |
| 983 | stream()->Put('%'); |
| 984 | return NULL; |
| 985 | } |
| 986 | |
| 987 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 988 | SmartArrayPointer<const char> RegExpTree::ToString(Zone* zone) { |
| 989 | RegExpUnparser unparser(zone); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 990 | Accept(&unparser, NULL); |
| 991 | return unparser.ToString(); |
| 992 | } |
| 993 | |
| 994 | |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 995 | RegExpDisjunction::RegExpDisjunction(ZoneList<RegExpTree*>* alternatives) |
| 996 | : alternatives_(alternatives) { |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 997 | ASSERT(alternatives->length() > 1); |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 998 | RegExpTree* first_alternative = alternatives->at(0); |
| 999 | min_match_ = first_alternative->min_match(); |
| 1000 | max_match_ = first_alternative->max_match(); |
| 1001 | for (int i = 1; i < alternatives->length(); i++) { |
| 1002 | RegExpTree* alternative = alternatives->at(i); |
| 1003 | min_match_ = Min(min_match_, alternative->min_match()); |
| 1004 | max_match_ = Max(max_match_, alternative->max_match()); |
| 1005 | } |
| 1006 | } |
| 1007 | |
| 1008 | |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 1009 | static int IncreaseBy(int previous, int increase) { |
| 1010 | if (RegExpTree::kInfinity - previous < increase) { |
| 1011 | return RegExpTree::kInfinity; |
| 1012 | } else { |
| 1013 | return previous + increase; |
| 1014 | } |
| 1015 | } |
| 1016 | |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 1017 | RegExpAlternative::RegExpAlternative(ZoneList<RegExpTree*>* nodes) |
| 1018 | : nodes_(nodes) { |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 1019 | ASSERT(nodes->length() > 1); |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 1020 | min_match_ = 0; |
| 1021 | max_match_ = 0; |
| 1022 | for (int i = 0; i < nodes->length(); i++) { |
| 1023 | RegExpTree* node = nodes->at(i); |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 1024 | int node_min_match = node->min_match(); |
| 1025 | min_match_ = IncreaseBy(min_match_, node_min_match); |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 1026 | int node_max_match = node->max_match(); |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 1027 | max_match_ = IncreaseBy(max_match_, node_max_match); |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 1028 | } |
| 1029 | } |
| 1030 | |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 1031 | |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 1032 | CaseClause::CaseClause(Isolate* isolate, |
| 1033 | Expression* label, |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1034 | ZoneList<Statement*>* statements, |
| 1035 | int pos) |
mstarzinger@chromium.org | a2e1a40 | 2013-10-15 08:25:05 +0000 | [diff] [blame] | 1036 | : AstNode(pos), |
| 1037 | label_(label), |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1038 | statements_(statements), |
danno@chromium.org | 4172848 | 2013-06-12 22:31:22 +0000 | [diff] [blame] | 1039 | compare_type_(Type::None(), isolate), |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 1040 | compare_id_(AstNode::GetNextId(isolate)), |
| 1041 | entry_id_(AstNode::GetNextId(isolate)) { |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 1042 | } |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 1043 | |
svenpanne@chromium.org | b1df11d | 2012-02-08 10:26:21 +0000 | [diff] [blame] | 1044 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1045 | #define REGULAR_NODE(NodeType) \ |
svenpanne@chromium.org | b1df11d | 2012-02-08 10:26:21 +0000 | [diff] [blame] | 1046 | void AstConstructionVisitor::Visit##NodeType(NodeType* node) { \ |
| 1047 | increase_node_count(); \ |
| 1048 | } |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1049 | #define DONT_OPTIMIZE_NODE(NodeType) \ |
| 1050 | void AstConstructionVisitor::Visit##NodeType(NodeType* node) { \ |
| 1051 | increase_node_count(); \ |
jkummerow@chromium.org | 2c9426b | 2013-09-05 16:31:13 +0000 | [diff] [blame] | 1052 | set_dont_optimize_reason(k##NodeType); \ |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1053 | add_flag(kDontInline); \ |
| 1054 | add_flag(kDontSelfOptimize); \ |
| 1055 | } |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1056 | #define DONT_SELFOPTIMIZE_NODE(NodeType) \ |
| 1057 | void AstConstructionVisitor::Visit##NodeType(NodeType* node) { \ |
| 1058 | increase_node_count(); \ |
| 1059 | add_flag(kDontSelfOptimize); \ |
| 1060 | } |
danno@chromium.org | 81cac2b | 2012-07-10 11:28:27 +0000 | [diff] [blame] | 1061 | #define DONT_CACHE_NODE(NodeType) \ |
| 1062 | void AstConstructionVisitor::Visit##NodeType(NodeType* node) { \ |
| 1063 | increase_node_count(); \ |
jkummerow@chromium.org | 2c9426b | 2013-09-05 16:31:13 +0000 | [diff] [blame] | 1064 | set_dont_optimize_reason(k##NodeType); \ |
danno@chromium.org | 81cac2b | 2012-07-10 11:28:27 +0000 | [diff] [blame] | 1065 | add_flag(kDontInline); \ |
| 1066 | add_flag(kDontSelfOptimize); \ |
| 1067 | add_flag(kDontCache); \ |
| 1068 | } |
svenpanne@chromium.org | b1df11d | 2012-02-08 10:26:21 +0000 | [diff] [blame] | 1069 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1070 | REGULAR_NODE(VariableDeclaration) |
| 1071 | REGULAR_NODE(FunctionDeclaration) |
| 1072 | REGULAR_NODE(Block) |
| 1073 | REGULAR_NODE(ExpressionStatement) |
| 1074 | REGULAR_NODE(EmptyStatement) |
| 1075 | REGULAR_NODE(IfStatement) |
| 1076 | REGULAR_NODE(ContinueStatement) |
| 1077 | REGULAR_NODE(BreakStatement) |
| 1078 | REGULAR_NODE(ReturnStatement) |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 1079 | REGULAR_NODE(SwitchStatement) |
mstarzinger@chromium.org | a2e1a40 | 2013-10-15 08:25:05 +0000 | [diff] [blame] | 1080 | REGULAR_NODE(CaseClause) |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1081 | REGULAR_NODE(Conditional) |
| 1082 | REGULAR_NODE(Literal) |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 1083 | REGULAR_NODE(ArrayLiteral) |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1084 | REGULAR_NODE(ObjectLiteral) |
yangguo@chromium.org | 9c741c8 | 2012-06-28 15:04:22 +0000 | [diff] [blame] | 1085 | REGULAR_NODE(RegExpLiteral) |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 1086 | REGULAR_NODE(FunctionLiteral) |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1087 | REGULAR_NODE(Assignment) |
| 1088 | REGULAR_NODE(Throw) |
| 1089 | REGULAR_NODE(Property) |
| 1090 | REGULAR_NODE(UnaryOperation) |
| 1091 | REGULAR_NODE(CountOperation) |
| 1092 | REGULAR_NODE(BinaryOperation) |
| 1093 | REGULAR_NODE(CompareOperation) |
| 1094 | REGULAR_NODE(ThisFunction) |
| 1095 | REGULAR_NODE(Call) |
| 1096 | REGULAR_NODE(CallNew) |
| 1097 | // In theory, for VariableProxy we'd have to add: |
| 1098 | // if (node->var()->IsLookupSlot()) add_flag(kDontInline); |
| 1099 | // But node->var() is usually not bound yet at VariableProxy creation time, and |
| 1100 | // LOOKUP variables only result from constructs that cannot be inlined anyway. |
| 1101 | REGULAR_NODE(VariableProxy) |
svenpanne@chromium.org | b1df11d | 2012-02-08 10:26:21 +0000 | [diff] [blame] | 1102 | |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1103 | // We currently do not optimize any modules. |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1104 | DONT_OPTIMIZE_NODE(ModuleDeclaration) |
| 1105 | DONT_OPTIMIZE_NODE(ImportDeclaration) |
| 1106 | DONT_OPTIMIZE_NODE(ExportDeclaration) |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1107 | DONT_OPTIMIZE_NODE(ModuleVariable) |
| 1108 | DONT_OPTIMIZE_NODE(ModulePath) |
| 1109 | DONT_OPTIMIZE_NODE(ModuleUrl) |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1110 | DONT_OPTIMIZE_NODE(ModuleStatement) |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 1111 | DONT_OPTIMIZE_NODE(Yield) |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1112 | DONT_OPTIMIZE_NODE(WithStatement) |
| 1113 | DONT_OPTIMIZE_NODE(TryCatchStatement) |
| 1114 | DONT_OPTIMIZE_NODE(TryFinallyStatement) |
| 1115 | DONT_OPTIMIZE_NODE(DebuggerStatement) |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1116 | DONT_OPTIMIZE_NODE(NativeFunctionLiteral) |
svenpanne@chromium.org | b1df11d | 2012-02-08 10:26:21 +0000 | [diff] [blame] | 1117 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1118 | DONT_SELFOPTIMIZE_NODE(DoWhileStatement) |
| 1119 | DONT_SELFOPTIMIZE_NODE(WhileStatement) |
| 1120 | DONT_SELFOPTIMIZE_NODE(ForStatement) |
| 1121 | DONT_SELFOPTIMIZE_NODE(ForInStatement) |
danno@chromium.org | 1fd77d5 | 2013-06-07 16:01:45 +0000 | [diff] [blame] | 1122 | DONT_SELFOPTIMIZE_NODE(ForOfStatement) |
svenpanne@chromium.org | b1df11d | 2012-02-08 10:26:21 +0000 | [diff] [blame] | 1123 | |
danno@chromium.org | 81cac2b | 2012-07-10 11:28:27 +0000 | [diff] [blame] | 1124 | DONT_CACHE_NODE(ModuleLiteral) |
| 1125 | |
svenpanne@chromium.org | b1df11d | 2012-02-08 10:26:21 +0000 | [diff] [blame] | 1126 | void AstConstructionVisitor::VisitCallRuntime(CallRuntime* node) { |
| 1127 | increase_node_count(); |
svenpanne@chromium.org | b1df11d | 2012-02-08 10:26:21 +0000 | [diff] [blame] | 1128 | if (node->is_jsruntime()) { |
| 1129 | // Don't try to inline JS runtime calls because we don't (currently) even |
| 1130 | // optimize them. |
| 1131 | add_flag(kDontInline); |
| 1132 | } else if (node->function()->intrinsic_type == Runtime::INLINE && |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1133 | (node->name()->IsOneByteEqualTo( |
| 1134 | STATIC_ASCII_VECTOR("_ArgumentsLength")) || |
| 1135 | node->name()->IsOneByteEqualTo(STATIC_ASCII_VECTOR("_Arguments")))) { |
svenpanne@chromium.org | b1df11d | 2012-02-08 10:26:21 +0000 | [diff] [blame] | 1136 | // Don't inline the %_ArgumentsLength or %_Arguments because their |
| 1137 | // implementation will not work. There is no stack frame to get them |
| 1138 | // from. |
| 1139 | add_flag(kDontInline); |
| 1140 | } |
| 1141 | } |
| 1142 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1143 | #undef REGULAR_NODE |
| 1144 | #undef DONT_OPTIMIZE_NODE |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1145 | #undef DONT_SELFOPTIMIZE_NODE |
danno@chromium.org | 81cac2b | 2012-07-10 11:28:27 +0000 | [diff] [blame] | 1146 | #undef DONT_CACHE_NODE |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1147 | |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 1148 | |
| 1149 | Handle<String> Literal::ToString() { |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 1150 | if (value_->IsString()) return Handle<String>::cast(value_); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 1151 | ASSERT(value_->IsNumber()); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 1152 | char arr[100]; |
| 1153 | Vector<char> buffer(arr, ARRAY_SIZE(arr)); |
| 1154 | const char* str; |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 1155 | if (value_->IsSmi()) { |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 1156 | // Optimization only, the heap number case would subsume this. |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 1157 | OS::SNPrintF(buffer, "%d", Smi::cast(*value_)->value()); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 1158 | str = arr; |
| 1159 | } else { |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 1160 | str = DoubleToCString(value_->Number(), buffer); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 1161 | } |
jkummerow@chromium.org | 8fa5bd9 | 2013-09-02 11:45:09 +0000 | [diff] [blame] | 1162 | return isolate_->factory()->NewStringFromAscii(CStrVector(str)); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 1163 | } |
| 1164 | |
| 1165 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1166 | } } // namespace v8::internal |