Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1 | // Copyright 2015 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "src/v8.h" |
| 6 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 7 | // Required to get M_E etc. in MSVC. |
| 8 | #if defined(_WIN32) |
| 9 | #define _USE_MATH_DEFINES |
| 10 | #endif |
| 11 | #include <math.h> |
| 12 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 13 | #include "src/wasm/asm-wasm-builder.h" |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 14 | #include "src/wasm/switch-logic.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 15 | #include "src/wasm/wasm-macro-gen.h" |
| 16 | #include "src/wasm/wasm-opcodes.h" |
| 17 | |
| 18 | #include "src/ast/ast.h" |
| 19 | #include "src/ast/scopes.h" |
| 20 | #include "src/codegen.h" |
| 21 | #include "src/type-cache.h" |
| 22 | |
| 23 | namespace v8 { |
| 24 | namespace internal { |
| 25 | namespace wasm { |
| 26 | |
| 27 | #define RECURSE(call) \ |
| 28 | do { \ |
| 29 | DCHECK(!HasStackOverflow()); \ |
| 30 | call; \ |
| 31 | if (HasStackOverflow()) return; \ |
| 32 | } while (false) |
| 33 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 34 | enum AsmScope { kModuleScope, kInitScope, kFuncScope, kExportScope }; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 35 | |
| 36 | class AsmWasmBuilderImpl : public AstVisitor { |
| 37 | public: |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 38 | AsmWasmBuilderImpl(Isolate* isolate, Zone* zone, FunctionLiteral* literal, |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 39 | Handle<Object> foreign, AsmTyper* typer) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 40 | : local_variables_(HashMap::PointersMatch, |
| 41 | ZoneHashMap::kDefaultHashMapCapacity, |
| 42 | ZoneAllocationPolicy(zone)), |
| 43 | functions_(HashMap::PointersMatch, ZoneHashMap::kDefaultHashMapCapacity, |
| 44 | ZoneAllocationPolicy(zone)), |
| 45 | global_variables_(HashMap::PointersMatch, |
| 46 | ZoneHashMap::kDefaultHashMapCapacity, |
| 47 | ZoneAllocationPolicy(zone)), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 48 | scope_(kModuleScope), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 49 | builder_(new (zone) WasmModuleBuilder(zone)), |
| 50 | current_function_builder_(nullptr), |
| 51 | literal_(literal), |
| 52 | isolate_(isolate), |
| 53 | zone_(zone), |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 54 | foreign_(foreign), |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 55 | typer_(typer), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 56 | cache_(TypeCache::Get()), |
| 57 | breakable_blocks_(zone), |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 58 | init_function_index_(0), |
| 59 | next_table_index_(0), |
| 60 | function_tables_(HashMap::PointersMatch, |
| 61 | ZoneHashMap::kDefaultHashMapCapacity, |
| 62 | ZoneAllocationPolicy(zone)), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 63 | imported_function_table_(this), |
| 64 | bounds_(typer->bounds()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 65 | InitializeAstVisitor(isolate); |
| 66 | } |
| 67 | |
| 68 | void InitializeInitFunction() { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 69 | init_function_index_ = builder_->AddFunction(); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 70 | FunctionSig::Builder b(zone(), 0, 0); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 71 | current_function_builder_ = builder_->FunctionAt(init_function_index_); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 72 | current_function_builder_->SetSignature(b.Build()); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 73 | builder_->MarkStartFunction(init_function_index_); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 74 | current_function_builder_ = nullptr; |
| 75 | } |
| 76 | |
| 77 | void Compile() { |
| 78 | InitializeInitFunction(); |
| 79 | RECURSE(VisitFunctionLiteral(literal_)); |
| 80 | } |
| 81 | |
| 82 | void VisitVariableDeclaration(VariableDeclaration* decl) {} |
| 83 | |
| 84 | void VisitFunctionDeclaration(FunctionDeclaration* decl) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 85 | DCHECK_EQ(kModuleScope, scope_); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 86 | DCHECK_NULL(current_function_builder_); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 87 | uint32_t index = LookupOrInsertFunction(decl->proxy()->var()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 88 | current_function_builder_ = builder_->FunctionAt(index); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 89 | scope_ = kFuncScope; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 90 | RECURSE(Visit(decl->fun())); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 91 | scope_ = kModuleScope; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 92 | current_function_builder_ = nullptr; |
| 93 | local_variables_.Clear(); |
| 94 | } |
| 95 | |
| 96 | void VisitImportDeclaration(ImportDeclaration* decl) {} |
| 97 | |
| 98 | void VisitExportDeclaration(ExportDeclaration* decl) {} |
| 99 | |
| 100 | void VisitStatements(ZoneList<Statement*>* stmts) { |
| 101 | for (int i = 0; i < stmts->length(); ++i) { |
| 102 | Statement* stmt = stmts->at(i); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 103 | ExpressionStatement* e = stmt->AsExpressionStatement(); |
| 104 | if (e != nullptr && e->expression()->IsUndefinedLiteral()) { |
| 105 | continue; |
| 106 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 107 | RECURSE(Visit(stmt)); |
| 108 | if (stmt->IsJump()) break; |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | void VisitBlock(Block* stmt) { |
| 113 | if (stmt->statements()->length() == 1) { |
| 114 | ExpressionStatement* expr = |
| 115 | stmt->statements()->at(0)->AsExpressionStatement(); |
| 116 | if (expr != nullptr) { |
| 117 | if (expr->expression()->IsAssignment()) { |
| 118 | RECURSE(VisitExpressionStatement(expr)); |
| 119 | return; |
| 120 | } |
| 121 | } |
| 122 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 123 | if (scope_ == kFuncScope) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 124 | BlockVisitor visitor(this, stmt->AsBreakableStatement(), kExprBlock, |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 125 | false); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 126 | RECURSE(VisitStatements(stmt->statements())); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 127 | } else { |
| 128 | RECURSE(VisitStatements(stmt->statements())); |
| 129 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 130 | } |
| 131 | |
| 132 | class BlockVisitor { |
| 133 | private: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 134 | AsmWasmBuilderImpl* builder_; |
| 135 | |
| 136 | public: |
| 137 | BlockVisitor(AsmWasmBuilderImpl* builder, BreakableStatement* stmt, |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 138 | WasmOpcode opcode, bool is_loop) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 139 | : builder_(builder) { |
| 140 | builder_->breakable_blocks_.push_back(std::make_pair(stmt, is_loop)); |
| 141 | builder_->current_function_builder_->Emit(opcode); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 142 | } |
| 143 | ~BlockVisitor() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 144 | builder_->current_function_builder_->Emit(kExprEnd); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 145 | builder_->breakable_blocks_.pop_back(); |
| 146 | } |
| 147 | }; |
| 148 | |
| 149 | void VisitExpressionStatement(ExpressionStatement* stmt) { |
| 150 | RECURSE(Visit(stmt->expression())); |
| 151 | } |
| 152 | |
| 153 | void VisitEmptyStatement(EmptyStatement* stmt) {} |
| 154 | |
| 155 | void VisitEmptyParentheses(EmptyParentheses* paren) { UNREACHABLE(); } |
| 156 | |
| 157 | void VisitIfStatement(IfStatement* stmt) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 158 | DCHECK_EQ(kFuncScope, scope_); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 159 | RECURSE(Visit(stmt->condition())); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 160 | current_function_builder_->Emit(kExprIf); |
| 161 | // WASM ifs come with implement blocks for both arms. |
| 162 | breakable_blocks_.push_back(std::make_pair(nullptr, false)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 163 | if (stmt->HasThenStatement()) { |
| 164 | RECURSE(Visit(stmt->then_statement())); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 165 | } |
| 166 | if (stmt->HasElseStatement()) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 167 | current_function_builder_->Emit(kExprElse); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 168 | RECURSE(Visit(stmt->else_statement())); |
| 169 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 170 | current_function_builder_->Emit(kExprEnd); |
| 171 | breakable_blocks_.pop_back(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 172 | } |
| 173 | |
| 174 | void VisitContinueStatement(ContinueStatement* stmt) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 175 | DCHECK_EQ(kFuncScope, scope_); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 176 | DCHECK_NOT_NULL(stmt->target()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 177 | int i = static_cast<int>(breakable_blocks_.size()) - 1; |
| 178 | int block_distance = 0; |
| 179 | for (; i >= 0; i--) { |
| 180 | auto elem = breakable_blocks_.at(i); |
| 181 | if (elem.first == stmt->target()) { |
| 182 | DCHECK(elem.second); |
| 183 | break; |
| 184 | } else if (elem.second) { |
| 185 | block_distance += 2; |
| 186 | } else { |
| 187 | block_distance += 1; |
| 188 | } |
| 189 | } |
| 190 | DCHECK(i >= 0); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 191 | current_function_builder_->EmitWithU8(kExprBr, ARITY_0); |
| 192 | current_function_builder_->EmitVarInt(block_distance); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 193 | } |
| 194 | |
| 195 | void VisitBreakStatement(BreakStatement* stmt) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 196 | DCHECK_EQ(kFuncScope, scope_); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 197 | DCHECK_NOT_NULL(stmt->target()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 198 | int i = static_cast<int>(breakable_blocks_.size()) - 1; |
| 199 | int block_distance = 0; |
| 200 | for (; i >= 0; i--) { |
| 201 | auto elem = breakable_blocks_.at(i); |
| 202 | if (elem.first == stmt->target()) { |
| 203 | if (elem.second) { |
| 204 | block_distance++; |
| 205 | } |
| 206 | break; |
| 207 | } else if (elem.second) { |
| 208 | block_distance += 2; |
| 209 | } else { |
| 210 | block_distance += 1; |
| 211 | } |
| 212 | } |
| 213 | DCHECK(i >= 0); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 214 | current_function_builder_->EmitWithU8(kExprBr, ARITY_0); |
| 215 | current_function_builder_->EmitVarInt(block_distance); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 216 | } |
| 217 | |
| 218 | void VisitReturnStatement(ReturnStatement* stmt) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 219 | if (scope_ == kModuleScope) { |
| 220 | scope_ = kExportScope; |
| 221 | RECURSE(Visit(stmt->expression())); |
| 222 | scope_ = kModuleScope; |
| 223 | } else if (scope_ == kFuncScope) { |
| 224 | RECURSE(Visit(stmt->expression())); |
| 225 | uint8_t arity = |
| 226 | TypeOf(stmt->expression()) == kAstStmt ? ARITY_0 : ARITY_1; |
| 227 | current_function_builder_->EmitWithU8(kExprReturn, arity); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 228 | } else { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 229 | UNREACHABLE(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 230 | } |
| 231 | } |
| 232 | |
| 233 | void VisitWithStatement(WithStatement* stmt) { UNREACHABLE(); } |
| 234 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 235 | void HandleCase(CaseNode* node, |
| 236 | const ZoneMap<int, unsigned int>& case_to_block, |
| 237 | VariableProxy* tag, int default_block, int if_depth) { |
| 238 | int prev_if_depth = if_depth; |
| 239 | if (node->left != nullptr) { |
| 240 | VisitVariableProxy(tag); |
| 241 | current_function_builder_->EmitI32Const(node->begin); |
| 242 | current_function_builder_->Emit(kExprI32LtS); |
| 243 | current_function_builder_->Emit(kExprIf); |
| 244 | if_depth++; |
| 245 | breakable_blocks_.push_back(std::make_pair(nullptr, false)); |
| 246 | HandleCase(node->left, case_to_block, tag, default_block, if_depth); |
| 247 | current_function_builder_->Emit(kExprElse); |
| 248 | } |
| 249 | if (node->right != nullptr) { |
| 250 | VisitVariableProxy(tag); |
| 251 | current_function_builder_->EmitI32Const(node->end); |
| 252 | current_function_builder_->Emit(kExprI32GtS); |
| 253 | current_function_builder_->Emit(kExprIf); |
| 254 | if_depth++; |
| 255 | breakable_blocks_.push_back(std::make_pair(nullptr, false)); |
| 256 | HandleCase(node->right, case_to_block, tag, default_block, if_depth); |
| 257 | current_function_builder_->Emit(kExprElse); |
| 258 | } |
| 259 | if (node->begin == node->end) { |
| 260 | VisitVariableProxy(tag); |
| 261 | current_function_builder_->EmitI32Const(node->begin); |
| 262 | current_function_builder_->Emit(kExprI32Eq); |
| 263 | current_function_builder_->Emit(kExprIf); |
| 264 | DCHECK(case_to_block.find(node->begin) != case_to_block.end()); |
| 265 | current_function_builder_->EmitWithU8(kExprBr, ARITY_0); |
| 266 | current_function_builder_->EmitVarInt(1 + if_depth + |
| 267 | case_to_block.at(node->begin)); |
| 268 | current_function_builder_->Emit(kExprEnd); |
| 269 | } else { |
| 270 | if (node->begin != 0) { |
| 271 | VisitVariableProxy(tag); |
| 272 | current_function_builder_->EmitI32Const(node->begin); |
| 273 | current_function_builder_->Emit(kExprI32Sub); |
| 274 | } else { |
| 275 | VisitVariableProxy(tag); |
| 276 | } |
| 277 | current_function_builder_->EmitWithU8(kExprBrTable, ARITY_0); |
| 278 | current_function_builder_->EmitVarInt(node->end - node->begin + 1); |
| 279 | for (int v = node->begin; v <= node->end; v++) { |
| 280 | if (case_to_block.find(v) != case_to_block.end()) { |
| 281 | byte break_code[] = {BR_TARGET(if_depth + case_to_block.at(v))}; |
| 282 | current_function_builder_->EmitCode(break_code, sizeof(break_code)); |
| 283 | } else { |
| 284 | byte break_code[] = {BR_TARGET(if_depth + default_block)}; |
| 285 | current_function_builder_->EmitCode(break_code, sizeof(break_code)); |
| 286 | } |
| 287 | if (v == kMaxInt) { |
| 288 | break; |
| 289 | } |
| 290 | } |
| 291 | byte break_code[] = {BR_TARGET(if_depth + default_block)}; |
| 292 | current_function_builder_->EmitCode(break_code, sizeof(break_code)); |
| 293 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 294 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 295 | while (if_depth-- != prev_if_depth) { |
| 296 | breakable_blocks_.pop_back(); |
| 297 | current_function_builder_->Emit(kExprEnd); |
| 298 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 299 | } |
| 300 | |
| 301 | void VisitSwitchStatement(SwitchStatement* stmt) { |
| 302 | VariableProxy* tag = stmt->tag()->AsVariableProxy(); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 303 | DCHECK_NOT_NULL(tag); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 304 | ZoneList<CaseClause*>* clauses = stmt->cases(); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 305 | int case_count = clauses->length(); |
| 306 | if (case_count == 0) { |
| 307 | return; |
| 308 | } |
| 309 | BlockVisitor visitor(this, stmt->AsBreakableStatement(), kExprBlock, false); |
| 310 | ZoneVector<BlockVisitor*> blocks(zone_); |
| 311 | ZoneVector<int32_t> cases(zone_); |
| 312 | ZoneMap<int, unsigned int> case_to_block(zone_); |
| 313 | bool has_default = false; |
| 314 | for (int i = case_count - 1; i >= 0; i--) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 315 | CaseClause* clause = clauses->at(i); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 316 | blocks.push_back(new BlockVisitor(this, nullptr, kExprBlock, false)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 317 | if (!clause->is_default()) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 318 | Literal* label = clause->label()->AsLiteral(); |
| 319 | Handle<Object> value = label->value(); |
| 320 | DCHECK(value->IsNumber() && |
| 321 | bounds_->get(label).upper->Is(cache_.kAsmSigned)); |
| 322 | int32_t label_value; |
| 323 | if (!value->ToInt32(&label_value)) { |
| 324 | UNREACHABLE(); |
| 325 | } |
| 326 | case_to_block[label_value] = i; |
| 327 | cases.push_back(label_value); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 328 | } else { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 329 | DCHECK_EQ(i, case_count - 1); |
| 330 | has_default = true; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 331 | } |
| 332 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 333 | if (!has_default || case_count > 1) { |
| 334 | int default_block = has_default ? case_count - 1 : case_count; |
| 335 | BlockVisitor switch_logic_block(this, nullptr, kExprBlock, false); |
| 336 | CaseNode* root = OrderCases(&cases, zone_); |
| 337 | HandleCase(root, case_to_block, tag, default_block, 0); |
| 338 | if (root->left != nullptr || root->right != nullptr || |
| 339 | root->begin == root->end) { |
| 340 | current_function_builder_->EmitWithU8(kExprBr, ARITY_0); |
| 341 | current_function_builder_->EmitVarInt(default_block); |
| 342 | } |
| 343 | } |
| 344 | for (int i = 0; i < case_count; i++) { |
| 345 | CaseClause* clause = clauses->at(i); |
| 346 | RECURSE(VisitStatements(clause->statements())); |
| 347 | BlockVisitor* v = blocks.at(case_count - i - 1); |
| 348 | blocks.pop_back(); |
| 349 | delete v; |
| 350 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 351 | } |
| 352 | |
| 353 | void VisitCaseClause(CaseClause* clause) { UNREACHABLE(); } |
| 354 | |
| 355 | void VisitDoWhileStatement(DoWhileStatement* stmt) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 356 | DCHECK_EQ(kFuncScope, scope_); |
| 357 | BlockVisitor visitor(this, stmt->AsBreakableStatement(), kExprLoop, true); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 358 | RECURSE(Visit(stmt->body())); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 359 | RECURSE(Visit(stmt->cond())); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 360 | current_function_builder_->Emit(kExprIf); |
| 361 | current_function_builder_->EmitWithU8U8(kExprBr, ARITY_0, 1); |
| 362 | current_function_builder_->Emit(kExprEnd); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 363 | } |
| 364 | |
| 365 | void VisitWhileStatement(WhileStatement* stmt) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 366 | DCHECK_EQ(kFuncScope, scope_); |
| 367 | BlockVisitor visitor(this, stmt->AsBreakableStatement(), kExprLoop, true); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 368 | RECURSE(Visit(stmt->cond())); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 369 | breakable_blocks_.push_back(std::make_pair(nullptr, false)); |
| 370 | current_function_builder_->Emit(kExprIf); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 371 | RECURSE(Visit(stmt->body())); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 372 | current_function_builder_->EmitWithU8U8(kExprBr, ARITY_0, 1); |
| 373 | current_function_builder_->Emit(kExprEnd); |
| 374 | breakable_blocks_.pop_back(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 375 | } |
| 376 | |
| 377 | void VisitForStatement(ForStatement* stmt) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 378 | DCHECK_EQ(kFuncScope, scope_); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 379 | if (stmt->init() != nullptr) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 380 | RECURSE(Visit(stmt->init())); |
| 381 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 382 | BlockVisitor visitor(this, stmt->AsBreakableStatement(), kExprLoop, true); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 383 | if (stmt->cond() != nullptr) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 384 | RECURSE(Visit(stmt->cond())); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 385 | current_function_builder_->Emit(kExprI32Eqz); |
| 386 | current_function_builder_->Emit(kExprIf); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 387 | current_function_builder_->Emit(kExprNop); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 388 | current_function_builder_->EmitWithU8U8(kExprBr, ARITY_0, 2); |
| 389 | current_function_builder_->Emit(kExprEnd); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 390 | } |
| 391 | if (stmt->body() != nullptr) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 392 | RECURSE(Visit(stmt->body())); |
| 393 | } |
| 394 | if (stmt->next() != nullptr) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 395 | RECURSE(Visit(stmt->next())); |
| 396 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 397 | current_function_builder_->Emit(kExprNop); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 398 | current_function_builder_->EmitWithU8U8(kExprBr, ARITY_0, 0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 399 | } |
| 400 | |
| 401 | void VisitForInStatement(ForInStatement* stmt) { UNREACHABLE(); } |
| 402 | |
| 403 | void VisitForOfStatement(ForOfStatement* stmt) { UNREACHABLE(); } |
| 404 | |
| 405 | void VisitTryCatchStatement(TryCatchStatement* stmt) { UNREACHABLE(); } |
| 406 | |
| 407 | void VisitTryFinallyStatement(TryFinallyStatement* stmt) { UNREACHABLE(); } |
| 408 | |
| 409 | void VisitDebuggerStatement(DebuggerStatement* stmt) { UNREACHABLE(); } |
| 410 | |
| 411 | void VisitFunctionLiteral(FunctionLiteral* expr) { |
| 412 | Scope* scope = expr->scope(); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 413 | if (scope_ == kFuncScope) { |
| 414 | if (bounds_->get(expr).lower->IsFunction()) { |
| 415 | // Build the signature for the function. |
| 416 | FunctionType* func_type = bounds_->get(expr).lower->AsFunction(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 417 | LocalType return_type = TypeFrom(func_type->Result()); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 418 | FunctionSig::Builder b(zone(), return_type == kAstStmt ? 0 : 1, |
| 419 | func_type->Arity()); |
| 420 | if (return_type != kAstStmt) b.AddReturn(return_type); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 421 | for (int i = 0; i < expr->parameter_count(); i++) { |
| 422 | LocalType type = TypeFrom(func_type->Parameter(i)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 423 | DCHECK_NE(kAstStmt, type); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 424 | b.AddParam(type); |
| 425 | InsertParameter(scope->parameter(i), type, i); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 426 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 427 | current_function_builder_->SetSignature(b.Build()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 428 | } else { |
| 429 | UNREACHABLE(); |
| 430 | } |
| 431 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 432 | RECURSE(VisitStatements(expr->body())); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 433 | RECURSE(VisitDeclarations(scope->declarations())); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 434 | } |
| 435 | |
| 436 | void VisitNativeFunctionLiteral(NativeFunctionLiteral* expr) { |
| 437 | UNREACHABLE(); |
| 438 | } |
| 439 | |
| 440 | void VisitConditional(Conditional* expr) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 441 | DCHECK_EQ(kFuncScope, scope_); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 442 | RECURSE(Visit(expr->condition())); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 443 | // WASM ifs come with implicit blocks for both arms. |
| 444 | breakable_blocks_.push_back(std::make_pair(nullptr, false)); |
| 445 | current_function_builder_->Emit(kExprIf); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 446 | RECURSE(Visit(expr->then_expression())); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 447 | current_function_builder_->Emit(kExprElse); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 448 | RECURSE(Visit(expr->else_expression())); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 449 | current_function_builder_->Emit(kExprEnd); |
| 450 | breakable_blocks_.pop_back(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 451 | } |
| 452 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 453 | bool VisitStdlibConstant(Variable* var) { |
| 454 | AsmTyper::StandardMember standard_object = |
| 455 | typer_->VariableAsStandardMember(var); |
| 456 | double value; |
| 457 | switch (standard_object) { |
| 458 | case AsmTyper::kInfinity: { |
| 459 | value = std::numeric_limits<double>::infinity(); |
| 460 | break; |
| 461 | } |
| 462 | case AsmTyper::kNaN: { |
| 463 | value = std::numeric_limits<double>::quiet_NaN(); |
| 464 | break; |
| 465 | } |
| 466 | case AsmTyper::kMathE: { |
| 467 | value = M_E; |
| 468 | break; |
| 469 | } |
| 470 | case AsmTyper::kMathLN10: { |
| 471 | value = M_LN10; |
| 472 | break; |
| 473 | } |
| 474 | case AsmTyper::kMathLN2: { |
| 475 | value = M_LN2; |
| 476 | break; |
| 477 | } |
| 478 | case AsmTyper::kMathLOG10E: { |
| 479 | value = M_LOG10E; |
| 480 | break; |
| 481 | } |
| 482 | case AsmTyper::kMathLOG2E: { |
| 483 | value = M_LOG2E; |
| 484 | break; |
| 485 | } |
| 486 | case AsmTyper::kMathPI: { |
| 487 | value = M_PI; |
| 488 | break; |
| 489 | } |
| 490 | case AsmTyper::kMathSQRT1_2: { |
| 491 | value = M_SQRT1_2; |
| 492 | break; |
| 493 | } |
| 494 | case AsmTyper::kMathSQRT2: { |
| 495 | value = M_SQRT2; |
| 496 | break; |
| 497 | } |
| 498 | default: { return false; } |
| 499 | } |
| 500 | byte code[] = {WASM_F64(value)}; |
| 501 | current_function_builder_->EmitCode(code, sizeof(code)); |
| 502 | return true; |
| 503 | } |
| 504 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 505 | void VisitVariableProxy(VariableProxy* expr) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 506 | if (scope_ == kFuncScope || scope_ == kInitScope) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 507 | Variable* var = expr->var(); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 508 | if (VisitStdlibConstant(var)) { |
| 509 | return; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 510 | } |
| 511 | LocalType var_type = TypeOf(expr); |
| 512 | DCHECK_NE(kAstStmt, var_type); |
| 513 | if (var->IsContextSlot()) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 514 | current_function_builder_->EmitWithVarInt( |
| 515 | kExprLoadGlobal, LookupOrInsertGlobal(var, var_type)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 516 | } else { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 517 | current_function_builder_->EmitGetLocal( |
| 518 | LookupOrInsertLocal(var, var_type)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 519 | } |
| 520 | } |
| 521 | } |
| 522 | |
| 523 | void VisitLiteral(Literal* expr) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 524 | Handle<Object> value = expr->value(); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 525 | if (!value->IsNumber() || (scope_ != kFuncScope && scope_ != kInitScope)) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 526 | return; |
| 527 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 528 | Type* type = bounds_->get(expr).upper; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 529 | if (type->Is(cache_.kAsmSigned)) { |
| 530 | int32_t i = 0; |
| 531 | if (!value->ToInt32(&i)) { |
| 532 | UNREACHABLE(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 533 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 534 | byte code[] = {WASM_I32V(i)}; |
| 535 | current_function_builder_->EmitCode(code, sizeof(code)); |
| 536 | } else if (type->Is(cache_.kAsmUnsigned) || type->Is(cache_.kAsmFixnum)) { |
| 537 | uint32_t u = 0; |
| 538 | if (!value->ToUint32(&u)) { |
| 539 | UNREACHABLE(); |
| 540 | } |
| 541 | int32_t i = static_cast<int32_t>(u); |
| 542 | byte code[] = {WASM_I32V(i)}; |
| 543 | current_function_builder_->EmitCode(code, sizeof(code)); |
| 544 | } else if (type->Is(cache_.kAsmDouble)) { |
| 545 | double val = expr->raw_value()->AsNumber(); |
| 546 | byte code[] = {WASM_F64(val)}; |
| 547 | current_function_builder_->EmitCode(code, sizeof(code)); |
| 548 | } else { |
| 549 | UNREACHABLE(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 550 | } |
| 551 | } |
| 552 | |
| 553 | void VisitRegExpLiteral(RegExpLiteral* expr) { UNREACHABLE(); } |
| 554 | |
| 555 | void VisitObjectLiteral(ObjectLiteral* expr) { |
| 556 | ZoneList<ObjectLiteralProperty*>* props = expr->properties(); |
| 557 | for (int i = 0; i < props->length(); ++i) { |
| 558 | ObjectLiteralProperty* prop = props->at(i); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 559 | DCHECK_EQ(kExportScope, scope_); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 560 | VariableProxy* expr = prop->value()->AsVariableProxy(); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 561 | DCHECK_NOT_NULL(expr); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 562 | Variable* var = expr->var(); |
| 563 | Literal* name = prop->key()->AsLiteral(); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 564 | DCHECK_NOT_NULL(name); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 565 | DCHECK(name->IsPropertyName()); |
| 566 | const AstRawString* raw_name = name->AsRawPropertyName(); |
| 567 | if (var->is_function()) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 568 | uint32_t index = LookupOrInsertFunction(var); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 569 | builder_->FunctionAt(index)->Exported(1); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 570 | builder_->FunctionAt(index)->SetName( |
| 571 | reinterpret_cast<const char*>(raw_name->raw_data()), |
| 572 | raw_name->length()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 573 | } |
| 574 | } |
| 575 | } |
| 576 | |
| 577 | void VisitArrayLiteral(ArrayLiteral* expr) { UNREACHABLE(); } |
| 578 | |
| 579 | void LoadInitFunction() { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 580 | current_function_builder_ = builder_->FunctionAt(init_function_index_); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 581 | scope_ = kInitScope; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 582 | } |
| 583 | |
| 584 | void UnLoadInitFunction() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 585 | scope_ = kModuleScope; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 586 | current_function_builder_ = nullptr; |
| 587 | } |
| 588 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 589 | void AddFunctionTable(VariableProxy* table, ArrayLiteral* funcs) { |
| 590 | FunctionType* func_type = |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 591 | bounds_->get(funcs).lower->AsArray()->Element()->AsFunction(); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 592 | LocalType return_type = TypeFrom(func_type->Result()); |
| 593 | FunctionSig::Builder sig(zone(), return_type == kAstStmt ? 0 : 1, |
| 594 | func_type->Arity()); |
| 595 | if (return_type != kAstStmt) { |
| 596 | sig.AddReturn(static_cast<LocalType>(return_type)); |
| 597 | } |
| 598 | for (int i = 0; i < func_type->Arity(); i++) { |
| 599 | sig.AddParam(TypeFrom(func_type->Parameter(i))); |
| 600 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 601 | uint32_t signature_index = builder_->AddSignature(sig.Build()); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 602 | InsertFunctionTable(table->var(), next_table_index_, signature_index); |
| 603 | next_table_index_ += funcs->values()->length(); |
| 604 | for (int i = 0; i < funcs->values()->length(); i++) { |
| 605 | VariableProxy* func = funcs->values()->at(i)->AsVariableProxy(); |
| 606 | DCHECK_NOT_NULL(func); |
| 607 | builder_->AddIndirectFunction(LookupOrInsertFunction(func->var())); |
| 608 | } |
| 609 | } |
| 610 | |
| 611 | struct FunctionTableIndices : public ZoneObject { |
| 612 | uint32_t start_index; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 613 | uint32_t signature_index; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 614 | }; |
| 615 | |
| 616 | void InsertFunctionTable(Variable* v, uint32_t start_index, |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 617 | uint32_t signature_index) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 618 | FunctionTableIndices* container = new (zone()) FunctionTableIndices(); |
| 619 | container->start_index = start_index; |
| 620 | container->signature_index = signature_index; |
| 621 | ZoneHashMap::Entry* entry = function_tables_.LookupOrInsert( |
| 622 | v, ComputePointerHash(v), ZoneAllocationPolicy(zone())); |
| 623 | entry->value = container; |
| 624 | } |
| 625 | |
| 626 | FunctionTableIndices* LookupFunctionTable(Variable* v) { |
| 627 | ZoneHashMap::Entry* entry = |
| 628 | function_tables_.Lookup(v, ComputePointerHash(v)); |
| 629 | DCHECK_NOT_NULL(entry); |
| 630 | return reinterpret_cast<FunctionTableIndices*>(entry->value); |
| 631 | } |
| 632 | |
| 633 | class ImportedFunctionTable { |
| 634 | private: |
| 635 | class ImportedFunctionIndices : public ZoneObject { |
| 636 | public: |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 637 | const char* name_; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 638 | int name_length_; |
| 639 | WasmModuleBuilder::SignatureMap signature_to_index_; |
| 640 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 641 | ImportedFunctionIndices(const char* name, int name_length, Zone* zone) |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 642 | : name_(name), name_length_(name_length), signature_to_index_(zone) {} |
| 643 | }; |
| 644 | ZoneHashMap table_; |
| 645 | AsmWasmBuilderImpl* builder_; |
| 646 | |
| 647 | public: |
| 648 | explicit ImportedFunctionTable(AsmWasmBuilderImpl* builder) |
| 649 | : table_(HashMap::PointersMatch, ZoneHashMap::kDefaultHashMapCapacity, |
| 650 | ZoneAllocationPolicy(builder->zone())), |
| 651 | builder_(builder) {} |
| 652 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 653 | void AddImport(Variable* v, const char* name, int name_length) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 654 | ImportedFunctionIndices* indices = new (builder_->zone()) |
| 655 | ImportedFunctionIndices(name, name_length, builder_->zone()); |
| 656 | ZoneHashMap::Entry* entry = table_.LookupOrInsert( |
| 657 | v, ComputePointerHash(v), ZoneAllocationPolicy(builder_->zone())); |
| 658 | entry->value = indices; |
| 659 | } |
| 660 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 661 | uint32_t GetFunctionIndex(Variable* v, FunctionSig* sig) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 662 | ZoneHashMap::Entry* entry = table_.Lookup(v, ComputePointerHash(v)); |
| 663 | DCHECK_NOT_NULL(entry); |
| 664 | ImportedFunctionIndices* indices = |
| 665 | reinterpret_cast<ImportedFunctionIndices*>(entry->value); |
| 666 | WasmModuleBuilder::SignatureMap::iterator pos = |
| 667 | indices->signature_to_index_.find(sig); |
| 668 | if (pos != indices->signature_to_index_.end()) { |
| 669 | return pos->second; |
| 670 | } else { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 671 | uint32_t index = builder_->builder_->AddImport( |
| 672 | indices->name_, indices->name_length_, sig); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 673 | indices->signature_to_index_[sig] = index; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 674 | return index; |
| 675 | } |
| 676 | } |
| 677 | }; |
| 678 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 679 | void EmitAssignmentLhs(Expression* target, MachineType* mtype) { |
| 680 | // Match the left hand side of the assignment. |
| 681 | VariableProxy* target_var = target->AsVariableProxy(); |
| 682 | if (target_var != nullptr) { |
| 683 | // Left hand side is a local or a global variable, no code on LHS. |
| 684 | return; |
| 685 | } |
| 686 | |
| 687 | Property* target_prop = target->AsProperty(); |
| 688 | if (target_prop != nullptr) { |
| 689 | // Left hand side is a property access, i.e. the asm.js heap. |
| 690 | VisitPropertyAndEmitIndex(target_prop, mtype); |
| 691 | return; |
| 692 | } |
| 693 | |
| 694 | if (target_var == nullptr && target_prop == nullptr) { |
| 695 | UNREACHABLE(); // invalid assignment. |
| 696 | } |
| 697 | } |
| 698 | |
| 699 | void EmitAssignmentRhs(Expression* target, Expression* value, bool* is_nop) { |
| 700 | BinaryOperation* binop = value->AsBinaryOperation(); |
| 701 | if (binop != nullptr) { |
| 702 | if (scope_ == kInitScope) { |
| 703 | // Handle foreign variables in the initialization scope. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 704 | Property* prop = binop->left()->AsProperty(); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 705 | if (binop->op() == Token::MUL) { |
| 706 | DCHECK(binop->right()->IsLiteral()); |
| 707 | DCHECK_EQ(1.0, binop->right()->AsLiteral()->raw_value()->AsNumber()); |
| 708 | DCHECK(binop->right()->AsLiteral()->raw_value()->ContainsDot()); |
| 709 | VisitForeignVariable(true, prop); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 710 | return; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 711 | } else if (binop->op() == Token::BIT_OR) { |
| 712 | DCHECK(binop->right()->IsLiteral()); |
| 713 | DCHECK_EQ(0.0, binop->right()->AsLiteral()->raw_value()->AsNumber()); |
| 714 | DCHECK(!binop->right()->AsLiteral()->raw_value()->ContainsDot()); |
| 715 | VisitForeignVariable(false, prop); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 716 | return; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 717 | } else { |
| 718 | UNREACHABLE(); |
| 719 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 720 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 721 | if (MatchBinaryOperation(binop) == kAsIs) { |
| 722 | VariableProxy* target_var = target->AsVariableProxy(); |
| 723 | VariableProxy* effective_value_var = GetLeft(binop)->AsVariableProxy(); |
| 724 | if (target_var != nullptr && effective_value_var != nullptr && |
| 725 | target_var->var() == effective_value_var->var()) { |
| 726 | *is_nop = true; |
| 727 | return; |
| 728 | } |
| 729 | } |
| 730 | } |
| 731 | RECURSE(Visit(value)); |
| 732 | } |
| 733 | |
| 734 | void EmitAssignment(Assignment* expr, MachineType type) { |
| 735 | // Match the left hand side of the assignment. |
| 736 | VariableProxy* target_var = expr->target()->AsVariableProxy(); |
| 737 | if (target_var != nullptr) { |
| 738 | // Left hand side is a local or a global variable. |
| 739 | Variable* var = target_var->var(); |
| 740 | LocalType var_type = TypeOf(expr); |
| 741 | DCHECK_NE(kAstStmt, var_type); |
| 742 | if (var->IsContextSlot()) { |
| 743 | current_function_builder_->EmitWithVarInt( |
| 744 | kExprStoreGlobal, LookupOrInsertGlobal(var, var_type)); |
| 745 | } else { |
| 746 | current_function_builder_->EmitSetLocal( |
| 747 | LookupOrInsertLocal(var, var_type)); |
| 748 | } |
| 749 | } |
| 750 | |
| 751 | Property* target_prop = expr->target()->AsProperty(); |
| 752 | if (target_prop != nullptr) { |
| 753 | // Left hand side is a property access, i.e. the asm.js heap. |
| 754 | if (TypeOf(expr->value()) == kAstF64 && expr->target()->IsProperty() && |
| 755 | bounds_->get(expr->target()->AsProperty()->obj()) |
| 756 | .lower->Is(cache_.kFloat32Array)) { |
| 757 | current_function_builder_->Emit(kExprF32ConvertF64); |
| 758 | } |
| 759 | WasmOpcode opcode; |
| 760 | if (type == MachineType::Int8()) { |
| 761 | opcode = kExprI32AsmjsStoreMem8; |
| 762 | } else if (type == MachineType::Uint8()) { |
| 763 | opcode = kExprI32AsmjsStoreMem8; |
| 764 | } else if (type == MachineType::Int16()) { |
| 765 | opcode = kExprI32AsmjsStoreMem16; |
| 766 | } else if (type == MachineType::Uint16()) { |
| 767 | opcode = kExprI32AsmjsStoreMem16; |
| 768 | } else if (type == MachineType::Int32()) { |
| 769 | opcode = kExprI32AsmjsStoreMem; |
| 770 | } else if (type == MachineType::Uint32()) { |
| 771 | opcode = kExprI32AsmjsStoreMem; |
| 772 | } else if (type == MachineType::Float32()) { |
| 773 | opcode = kExprF32AsmjsStoreMem; |
| 774 | } else if (type == MachineType::Float64()) { |
| 775 | opcode = kExprF64AsmjsStoreMem; |
| 776 | } else { |
| 777 | UNREACHABLE(); |
| 778 | } |
| 779 | current_function_builder_->Emit(opcode); |
| 780 | } |
| 781 | |
| 782 | if (target_var == nullptr && target_prop == nullptr) { |
| 783 | UNREACHABLE(); // invalid assignment. |
| 784 | } |
| 785 | } |
| 786 | |
| 787 | void VisitAssignment(Assignment* expr) { |
| 788 | bool as_init = false; |
| 789 | if (scope_ == kModuleScope) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 790 | Property* prop = expr->value()->AsProperty(); |
| 791 | if (prop != nullptr) { |
| 792 | VariableProxy* vp = prop->obj()->AsVariableProxy(); |
| 793 | if (vp != nullptr && vp->var()->IsParameter() && |
| 794 | vp->var()->index() == 1) { |
| 795 | VariableProxy* target = expr->target()->AsVariableProxy(); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 796 | if (bounds_->get(target).lower->Is(Type::Function())) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 797 | const AstRawString* name = |
| 798 | prop->key()->AsLiteral()->AsRawPropertyName(); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 799 | imported_function_table_.AddImport( |
| 800 | target->var(), reinterpret_cast<const char*>(name->raw_data()), |
| 801 | name->length()); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 802 | } |
| 803 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 804 | // Property values in module scope don't emit code, so return. |
| 805 | return; |
| 806 | } |
| 807 | ArrayLiteral* funcs = expr->value()->AsArrayLiteral(); |
| 808 | if (funcs != nullptr && |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 809 | bounds_->get(funcs).lower->AsArray()->Element()->IsFunction()) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 810 | VariableProxy* target = expr->target()->AsVariableProxy(); |
| 811 | DCHECK_NOT_NULL(target); |
| 812 | AddFunctionTable(target, funcs); |
| 813 | // Only add to the function table. No init needed. |
| 814 | return; |
| 815 | } |
| 816 | if (expr->value()->IsCallNew()) { |
| 817 | // No init code to emit for CallNew nodes. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 818 | return; |
| 819 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 820 | as_init = true; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 821 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 822 | |
| 823 | if (as_init) LoadInitFunction(); |
| 824 | MachineType mtype; |
| 825 | bool is_nop = false; |
| 826 | EmitAssignmentLhs(expr->target(), &mtype); |
| 827 | EmitAssignmentRhs(expr->target(), expr->value(), &is_nop); |
| 828 | if (!is_nop) { |
| 829 | EmitAssignment(expr, mtype); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 830 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 831 | if (as_init) UnLoadInitFunction(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 832 | } |
| 833 | |
| 834 | void VisitYield(Yield* expr) { UNREACHABLE(); } |
| 835 | |
| 836 | void VisitThrow(Throw* expr) { UNREACHABLE(); } |
| 837 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 838 | void VisitForeignVariable(bool is_float, Property* expr) { |
| 839 | DCHECK(expr->obj()->AsVariableProxy()); |
| 840 | DCHECK(VariableLocation::PARAMETER == |
| 841 | expr->obj()->AsVariableProxy()->var()->location()); |
| 842 | DCHECK_EQ(1, expr->obj()->AsVariableProxy()->var()->index()); |
| 843 | Literal* key_literal = expr->key()->AsLiteral(); |
| 844 | DCHECK_NOT_NULL(key_literal); |
| 845 | if (!key_literal->value().is_null() && !foreign_.is_null() && |
| 846 | foreign_->IsObject()) { |
| 847 | Handle<Name> name = |
| 848 | i::Object::ToName(isolate_, key_literal->value()).ToHandleChecked(); |
| 849 | MaybeHandle<Object> maybe_value = i::Object::GetProperty(foreign_, name); |
| 850 | if (!maybe_value.is_null()) { |
| 851 | Handle<Object> value = maybe_value.ToHandleChecked(); |
| 852 | if (is_float) { |
| 853 | MaybeHandle<Object> maybe_nvalue = i::Object::ToNumber(value); |
| 854 | if (!maybe_nvalue.is_null()) { |
| 855 | Handle<Object> nvalue = maybe_nvalue.ToHandleChecked(); |
| 856 | if (nvalue->IsNumber()) { |
| 857 | double val = nvalue->Number(); |
| 858 | byte code[] = {WASM_F64(val)}; |
| 859 | current_function_builder_->EmitCode(code, sizeof(code)); |
| 860 | return; |
| 861 | } |
| 862 | } |
| 863 | } else { |
| 864 | MaybeHandle<Object> maybe_nvalue = |
| 865 | i::Object::ToInt32(isolate_, value); |
| 866 | if (!maybe_nvalue.is_null()) { |
| 867 | Handle<Object> nvalue = maybe_nvalue.ToHandleChecked(); |
| 868 | if (nvalue->IsNumber()) { |
| 869 | int32_t val = static_cast<int32_t>(nvalue->Number()); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 870 | current_function_builder_->EmitI32Const(val); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 871 | return; |
| 872 | } |
| 873 | } |
| 874 | } |
| 875 | } |
| 876 | } |
| 877 | if (is_float) { |
| 878 | byte code[] = {WASM_F64(std::numeric_limits<double>::quiet_NaN())}; |
| 879 | current_function_builder_->EmitCode(code, sizeof(code)); |
| 880 | } else { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 881 | byte code[] = {WASM_I32V_1(0)}; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 882 | current_function_builder_->EmitCode(code, sizeof(code)); |
| 883 | } |
| 884 | } |
| 885 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 886 | void VisitPropertyAndEmitIndex(Property* expr, MachineType* mtype) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 887 | Expression* obj = expr->obj(); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 888 | DCHECK_EQ(bounds_->get(obj).lower, bounds_->get(obj).upper); |
| 889 | Type* type = bounds_->get(obj).lower; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 890 | int size; |
| 891 | if (type->Is(cache_.kUint8Array)) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 892 | *mtype = MachineType::Uint8(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 893 | size = 1; |
| 894 | } else if (type->Is(cache_.kInt8Array)) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 895 | *mtype = MachineType::Int8(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 896 | size = 1; |
| 897 | } else if (type->Is(cache_.kUint16Array)) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 898 | *mtype = MachineType::Uint16(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 899 | size = 2; |
| 900 | } else if (type->Is(cache_.kInt16Array)) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 901 | *mtype = MachineType::Int16(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 902 | size = 2; |
| 903 | } else if (type->Is(cache_.kUint32Array)) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 904 | *mtype = MachineType::Uint32(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 905 | size = 4; |
| 906 | } else if (type->Is(cache_.kInt32Array)) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 907 | *mtype = MachineType::Int32(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 908 | size = 4; |
| 909 | } else if (type->Is(cache_.kUint32Array)) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 910 | *mtype = MachineType::Uint32(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 911 | size = 4; |
| 912 | } else if (type->Is(cache_.kFloat32Array)) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 913 | *mtype = MachineType::Float32(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 914 | size = 4; |
| 915 | } else if (type->Is(cache_.kFloat64Array)) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 916 | *mtype = MachineType::Float64(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 917 | size = 8; |
| 918 | } else { |
| 919 | UNREACHABLE(); |
| 920 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 921 | if (size == 1) { |
| 922 | // Allow more general expression in byte arrays than the spec |
| 923 | // strictly permits. |
| 924 | // Early versions of Emscripten emit HEAP8[HEAP32[..]|0] in |
| 925 | // places that strictly should be HEAP8[HEAP32[..]>>0]. |
| 926 | RECURSE(Visit(expr->key())); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 927 | return; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 928 | } |
| 929 | |
| 930 | Literal* value = expr->key()->AsLiteral(); |
| 931 | if (value) { |
| 932 | DCHECK(value->raw_value()->IsNumber()); |
| 933 | DCHECK_EQ(kAstI32, TypeOf(value)); |
| 934 | int32_t val = static_cast<int32_t>(value->raw_value()->AsNumber()); |
| 935 | // TODO(titzer): handle overflow here. |
| 936 | current_function_builder_->EmitI32Const(val * size); |
| 937 | return; |
| 938 | } |
| 939 | BinaryOperation* binop = expr->key()->AsBinaryOperation(); |
| 940 | if (binop) { |
| 941 | DCHECK_EQ(Token::SAR, binop->op()); |
| 942 | DCHECK(binop->right()->AsLiteral()->raw_value()->IsNumber()); |
| 943 | DCHECK(kAstI32 == TypeOf(binop->right()->AsLiteral())); |
| 944 | DCHECK_EQ(size, |
| 945 | 1 << static_cast<int>( |
| 946 | binop->right()->AsLiteral()->raw_value()->AsNumber())); |
| 947 | // Mask bottom bits to match asm.js behavior. |
| 948 | byte mask = static_cast<byte>(~(size - 1)); |
| 949 | RECURSE(Visit(binop->left())); |
| 950 | current_function_builder_->EmitWithU8(kExprI8Const, mask); |
| 951 | current_function_builder_->Emit(kExprI32And); |
| 952 | return; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 953 | } |
| 954 | UNREACHABLE(); |
| 955 | } |
| 956 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 957 | void VisitProperty(Property* expr) { |
| 958 | MachineType type; |
| 959 | VisitPropertyAndEmitIndex(expr, &type); |
| 960 | WasmOpcode opcode; |
| 961 | if (type == MachineType::Int8()) { |
| 962 | opcode = kExprI32AsmjsLoadMem8S; |
| 963 | } else if (type == MachineType::Uint8()) { |
| 964 | opcode = kExprI32AsmjsLoadMem8U; |
| 965 | } else if (type == MachineType::Int16()) { |
| 966 | opcode = kExprI32AsmjsLoadMem16S; |
| 967 | } else if (type == MachineType::Uint16()) { |
| 968 | opcode = kExprI32AsmjsLoadMem16U; |
| 969 | } else if (type == MachineType::Int32()) { |
| 970 | opcode = kExprI32AsmjsLoadMem; |
| 971 | } else if (type == MachineType::Uint32()) { |
| 972 | opcode = kExprI32AsmjsLoadMem; |
| 973 | } else if (type == MachineType::Float32()) { |
| 974 | opcode = kExprF32AsmjsLoadMem; |
| 975 | } else if (type == MachineType::Float64()) { |
| 976 | opcode = kExprF64AsmjsLoadMem; |
| 977 | } else { |
| 978 | UNREACHABLE(); |
| 979 | } |
| 980 | |
| 981 | current_function_builder_->Emit(opcode); |
| 982 | } |
| 983 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 984 | bool VisitStdlibFunction(Call* call, VariableProxy* expr) { |
| 985 | Variable* var = expr->var(); |
| 986 | AsmTyper::StandardMember standard_object = |
| 987 | typer_->VariableAsStandardMember(var); |
| 988 | ZoneList<Expression*>* args = call->arguments(); |
| 989 | LocalType call_type = TypeOf(call); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 990 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 991 | switch (standard_object) { |
| 992 | case AsmTyper::kNone: { |
| 993 | return false; |
| 994 | } |
| 995 | case AsmTyper::kMathAcos: { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 996 | VisitCallArgs(call); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 997 | DCHECK_EQ(kAstF64, call_type); |
| 998 | current_function_builder_->Emit(kExprF64Acos); |
| 999 | break; |
| 1000 | } |
| 1001 | case AsmTyper::kMathAsin: { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1002 | VisitCallArgs(call); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1003 | DCHECK_EQ(kAstF64, call_type); |
| 1004 | current_function_builder_->Emit(kExprF64Asin); |
| 1005 | break; |
| 1006 | } |
| 1007 | case AsmTyper::kMathAtan: { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1008 | VisitCallArgs(call); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1009 | DCHECK_EQ(kAstF64, call_type); |
| 1010 | current_function_builder_->Emit(kExprF64Atan); |
| 1011 | break; |
| 1012 | } |
| 1013 | case AsmTyper::kMathCos: { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1014 | VisitCallArgs(call); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1015 | DCHECK_EQ(kAstF64, call_type); |
| 1016 | current_function_builder_->Emit(kExprF64Cos); |
| 1017 | break; |
| 1018 | } |
| 1019 | case AsmTyper::kMathSin: { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1020 | VisitCallArgs(call); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1021 | DCHECK_EQ(kAstF64, call_type); |
| 1022 | current_function_builder_->Emit(kExprF64Sin); |
| 1023 | break; |
| 1024 | } |
| 1025 | case AsmTyper::kMathTan: { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1026 | VisitCallArgs(call); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1027 | DCHECK_EQ(kAstF64, call_type); |
| 1028 | current_function_builder_->Emit(kExprF64Tan); |
| 1029 | break; |
| 1030 | } |
| 1031 | case AsmTyper::kMathExp: { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1032 | VisitCallArgs(call); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1033 | DCHECK_EQ(kAstF64, call_type); |
| 1034 | current_function_builder_->Emit(kExprF64Exp); |
| 1035 | break; |
| 1036 | } |
| 1037 | case AsmTyper::kMathLog: { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1038 | VisitCallArgs(call); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1039 | DCHECK_EQ(kAstF64, call_type); |
| 1040 | current_function_builder_->Emit(kExprF64Log); |
| 1041 | break; |
| 1042 | } |
| 1043 | case AsmTyper::kMathCeil: { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1044 | VisitCallArgs(call); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1045 | if (call_type == kAstF32) { |
| 1046 | current_function_builder_->Emit(kExprF32Ceil); |
| 1047 | } else if (call_type == kAstF64) { |
| 1048 | current_function_builder_->Emit(kExprF64Ceil); |
| 1049 | } else { |
| 1050 | UNREACHABLE(); |
| 1051 | } |
| 1052 | break; |
| 1053 | } |
| 1054 | case AsmTyper::kMathFloor: { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1055 | VisitCallArgs(call); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1056 | if (call_type == kAstF32) { |
| 1057 | current_function_builder_->Emit(kExprF32Floor); |
| 1058 | } else if (call_type == kAstF64) { |
| 1059 | current_function_builder_->Emit(kExprF64Floor); |
| 1060 | } else { |
| 1061 | UNREACHABLE(); |
| 1062 | } |
| 1063 | break; |
| 1064 | } |
| 1065 | case AsmTyper::kMathSqrt: { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1066 | VisitCallArgs(call); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1067 | if (call_type == kAstF32) { |
| 1068 | current_function_builder_->Emit(kExprF32Sqrt); |
| 1069 | } else if (call_type == kAstF64) { |
| 1070 | current_function_builder_->Emit(kExprF64Sqrt); |
| 1071 | } else { |
| 1072 | UNREACHABLE(); |
| 1073 | } |
| 1074 | break; |
| 1075 | } |
| 1076 | case AsmTyper::kMathAbs: { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1077 | if (call_type == kAstI32) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1078 | uint32_t tmp = current_function_builder_->AddLocal(kAstI32); |
| 1079 | |
| 1080 | // if set_local(tmp, x) < 0 |
| 1081 | Visit(call->arguments()->at(0)); |
| 1082 | current_function_builder_->EmitSetLocal(tmp); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1083 | byte code[] = {WASM_I8(0)}; |
| 1084 | current_function_builder_->EmitCode(code, sizeof(code)); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1085 | current_function_builder_->Emit(kExprI32LtS); |
| 1086 | current_function_builder_->Emit(kExprIf); |
| 1087 | |
| 1088 | // then (0 - tmp) |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1089 | current_function_builder_->EmitCode(code, sizeof(code)); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1090 | current_function_builder_->EmitGetLocal(tmp); |
| 1091 | current_function_builder_->Emit(kExprI32Sub); |
| 1092 | |
| 1093 | // else tmp |
| 1094 | current_function_builder_->Emit(kExprElse); |
| 1095 | current_function_builder_->EmitGetLocal(tmp); |
| 1096 | // end |
| 1097 | current_function_builder_->Emit(kExprEnd); |
| 1098 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1099 | } else if (call_type == kAstF32) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1100 | VisitCallArgs(call); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1101 | current_function_builder_->Emit(kExprF32Abs); |
| 1102 | } else if (call_type == kAstF64) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1103 | VisitCallArgs(call); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1104 | current_function_builder_->Emit(kExprF64Abs); |
| 1105 | } else { |
| 1106 | UNREACHABLE(); |
| 1107 | } |
| 1108 | break; |
| 1109 | } |
| 1110 | case AsmTyper::kMathMin: { |
| 1111 | // TODO(bradnelson): Change wasm to match Math.min in asm.js mode. |
| 1112 | if (call_type == kAstI32) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1113 | uint32_t tmp_x = current_function_builder_->AddLocal(kAstI32); |
| 1114 | uint32_t tmp_y = current_function_builder_->AddLocal(kAstI32); |
| 1115 | |
| 1116 | // if set_local(tmp_x, x) < set_local(tmp_y, y) |
| 1117 | Visit(call->arguments()->at(0)); |
| 1118 | current_function_builder_->EmitSetLocal(tmp_x); |
| 1119 | |
| 1120 | Visit(call->arguments()->at(1)); |
| 1121 | current_function_builder_->EmitSetLocal(tmp_y); |
| 1122 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1123 | current_function_builder_->Emit(kExprI32LeS); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1124 | current_function_builder_->Emit(kExprIf); |
| 1125 | |
| 1126 | // then tmp_x |
| 1127 | current_function_builder_->EmitGetLocal(tmp_x); |
| 1128 | |
| 1129 | // else tmp_y |
| 1130 | current_function_builder_->Emit(kExprElse); |
| 1131 | current_function_builder_->EmitGetLocal(tmp_y); |
| 1132 | current_function_builder_->Emit(kExprEnd); |
| 1133 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1134 | } else if (call_type == kAstF32) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1135 | VisitCallArgs(call); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1136 | current_function_builder_->Emit(kExprF32Min); |
| 1137 | } else if (call_type == kAstF64) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1138 | VisitCallArgs(call); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1139 | current_function_builder_->Emit(kExprF64Min); |
| 1140 | } else { |
| 1141 | UNREACHABLE(); |
| 1142 | } |
| 1143 | break; |
| 1144 | } |
| 1145 | case AsmTyper::kMathMax: { |
| 1146 | // TODO(bradnelson): Change wasm to match Math.max in asm.js mode. |
| 1147 | if (call_type == kAstI32) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1148 | uint32_t tmp_x = current_function_builder_->AddLocal(kAstI32); |
| 1149 | uint32_t tmp_y = current_function_builder_->AddLocal(kAstI32); |
| 1150 | |
| 1151 | // if set_local(tmp_x, x) < set_local(tmp_y, y) |
| 1152 | Visit(call->arguments()->at(0)); |
| 1153 | |
| 1154 | current_function_builder_->EmitSetLocal(tmp_x); |
| 1155 | |
| 1156 | Visit(call->arguments()->at(1)); |
| 1157 | current_function_builder_->EmitSetLocal(tmp_y); |
| 1158 | |
| 1159 | current_function_builder_->Emit(kExprI32LeS); |
| 1160 | current_function_builder_->Emit(kExprIf); |
| 1161 | |
| 1162 | // then tmp_y |
| 1163 | current_function_builder_->EmitGetLocal(tmp_y); |
| 1164 | |
| 1165 | // else tmp_x |
| 1166 | current_function_builder_->Emit(kExprElse); |
| 1167 | current_function_builder_->EmitGetLocal(tmp_x); |
| 1168 | current_function_builder_->Emit(kExprEnd); |
| 1169 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1170 | } else if (call_type == kAstF32) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1171 | VisitCallArgs(call); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1172 | current_function_builder_->Emit(kExprF32Max); |
| 1173 | } else if (call_type == kAstF64) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1174 | VisitCallArgs(call); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1175 | current_function_builder_->Emit(kExprF64Max); |
| 1176 | } else { |
| 1177 | UNREACHABLE(); |
| 1178 | } |
| 1179 | break; |
| 1180 | } |
| 1181 | case AsmTyper::kMathAtan2: { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1182 | VisitCallArgs(call); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1183 | DCHECK_EQ(kAstF64, call_type); |
| 1184 | current_function_builder_->Emit(kExprF64Atan2); |
| 1185 | break; |
| 1186 | } |
| 1187 | case AsmTyper::kMathPow: { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1188 | VisitCallArgs(call); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1189 | DCHECK_EQ(kAstF64, call_type); |
| 1190 | current_function_builder_->Emit(kExprF64Pow); |
| 1191 | break; |
| 1192 | } |
| 1193 | case AsmTyper::kMathImul: { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1194 | VisitCallArgs(call); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1195 | current_function_builder_->Emit(kExprI32Mul); |
| 1196 | break; |
| 1197 | } |
| 1198 | case AsmTyper::kMathFround: { |
| 1199 | DCHECK(args->length() == 1); |
| 1200 | Literal* literal = args->at(0)->AsLiteral(); |
| 1201 | if (literal != nullptr) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1202 | // constant fold Math.fround(#const); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1203 | if (literal->raw_value()->IsNumber()) { |
| 1204 | float val = static_cast<float>(literal->raw_value()->AsNumber()); |
| 1205 | byte code[] = {WASM_F32(val)}; |
| 1206 | current_function_builder_->EmitCode(code, sizeof(code)); |
| 1207 | return true; |
| 1208 | } |
| 1209 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1210 | VisitCallArgs(call); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1211 | switch (TypeIndexOf(args->at(0))) { |
| 1212 | case kInt32: |
| 1213 | case kFixnum: |
| 1214 | current_function_builder_->Emit(kExprF32SConvertI32); |
| 1215 | break; |
| 1216 | case kUint32: |
| 1217 | current_function_builder_->Emit(kExprF32UConvertI32); |
| 1218 | break; |
| 1219 | case kFloat32: |
| 1220 | break; |
| 1221 | case kFloat64: |
| 1222 | current_function_builder_->Emit(kExprF32ConvertF64); |
| 1223 | break; |
| 1224 | default: |
| 1225 | UNREACHABLE(); |
| 1226 | } |
| 1227 | break; |
| 1228 | } |
| 1229 | default: { |
| 1230 | UNREACHABLE(); |
| 1231 | break; |
| 1232 | } |
| 1233 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1234 | return true; |
| 1235 | } |
| 1236 | |
| 1237 | void VisitCallArgs(Call* expr) { |
| 1238 | ZoneList<Expression*>* args = expr->arguments(); |
| 1239 | for (int i = 0; i < args->length(); ++i) { |
| 1240 | Expression* arg = args->at(i); |
| 1241 | RECURSE(Visit(arg)); |
| 1242 | } |
| 1243 | } |
| 1244 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1245 | void VisitCall(Call* expr) { |
| 1246 | Call::CallType call_type = expr->GetCallType(isolate_); |
| 1247 | switch (call_type) { |
| 1248 | case Call::OTHER_CALL: { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1249 | DCHECK_EQ(kFuncScope, scope_); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1250 | VariableProxy* proxy = expr->expression()->AsVariableProxy(); |
| 1251 | if (proxy != nullptr) { |
| 1252 | if (VisitStdlibFunction(expr, proxy)) { |
| 1253 | return; |
| 1254 | } |
| 1255 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1256 | uint32_t index; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1257 | VariableProxy* vp = expr->expression()->AsVariableProxy(); |
| 1258 | if (vp != nullptr && |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1259 | Type::Any()->Is(bounds_->get(vp).lower->AsFunction()->Result())) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1260 | LocalType return_type = TypeOf(expr); |
| 1261 | ZoneList<Expression*>* args = expr->arguments(); |
| 1262 | FunctionSig::Builder sig(zone(), return_type == kAstStmt ? 0 : 1, |
| 1263 | args->length()); |
| 1264 | if (return_type != kAstStmt) { |
| 1265 | sig.AddReturn(return_type); |
| 1266 | } |
| 1267 | for (int i = 0; i < args->length(); i++) { |
| 1268 | sig.AddParam(TypeOf(args->at(i))); |
| 1269 | } |
| 1270 | index = |
| 1271 | imported_function_table_.GetFunctionIndex(vp->var(), sig.Build()); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1272 | VisitCallArgs(expr); |
| 1273 | current_function_builder_->Emit(kExprCallImport); |
| 1274 | current_function_builder_->EmitVarInt(expr->arguments()->length()); |
| 1275 | current_function_builder_->EmitVarInt(index); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1276 | } else { |
| 1277 | index = LookupOrInsertFunction(vp->var()); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1278 | VisitCallArgs(expr); |
| 1279 | current_function_builder_->Emit(kExprCallFunction); |
| 1280 | current_function_builder_->EmitVarInt(expr->arguments()->length()); |
| 1281 | current_function_builder_->EmitVarInt(index); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1282 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1283 | break; |
| 1284 | } |
| 1285 | case Call::KEYED_PROPERTY_CALL: { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1286 | DCHECK_EQ(kFuncScope, scope_); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1287 | Property* p = expr->expression()->AsProperty(); |
| 1288 | DCHECK_NOT_NULL(p); |
| 1289 | VariableProxy* var = p->obj()->AsVariableProxy(); |
| 1290 | DCHECK_NOT_NULL(var); |
| 1291 | FunctionTableIndices* indices = LookupFunctionTable(var->var()); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1292 | RECURSE(Visit(p->key())); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1293 | current_function_builder_->EmitI32Const(indices->start_index); |
| 1294 | current_function_builder_->Emit(kExprI32Add); |
| 1295 | VisitCallArgs(expr); |
| 1296 | current_function_builder_->Emit(kExprCallIndirect); |
| 1297 | current_function_builder_->EmitVarInt(expr->arguments()->length()); |
| 1298 | current_function_builder_->EmitVarInt(indices->signature_index); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1299 | break; |
| 1300 | } |
| 1301 | default: |
| 1302 | UNREACHABLE(); |
| 1303 | } |
| 1304 | } |
| 1305 | |
| 1306 | void VisitCallNew(CallNew* expr) { UNREACHABLE(); } |
| 1307 | |
| 1308 | void VisitCallRuntime(CallRuntime* expr) { UNREACHABLE(); } |
| 1309 | |
| 1310 | void VisitUnaryOperation(UnaryOperation* expr) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1311 | RECURSE(Visit(expr->expression())); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1312 | switch (expr->op()) { |
| 1313 | case Token::NOT: { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1314 | DCHECK_EQ(kAstI32, TypeOf(expr->expression())); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1315 | current_function_builder_->Emit(kExprI32Eqz); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1316 | break; |
| 1317 | } |
| 1318 | default: |
| 1319 | UNREACHABLE(); |
| 1320 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1321 | } |
| 1322 | |
| 1323 | void VisitCountOperation(CountOperation* expr) { UNREACHABLE(); } |
| 1324 | |
| 1325 | bool MatchIntBinaryOperation(BinaryOperation* expr, Token::Value op, |
| 1326 | int32_t val) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1327 | DCHECK_NOT_NULL(expr->right()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1328 | if (expr->op() == op && expr->right()->IsLiteral() && |
| 1329 | TypeOf(expr) == kAstI32) { |
| 1330 | Literal* right = expr->right()->AsLiteral(); |
| 1331 | DCHECK(right->raw_value()->IsNumber()); |
| 1332 | if (static_cast<int32_t>(right->raw_value()->AsNumber()) == val) { |
| 1333 | return true; |
| 1334 | } |
| 1335 | } |
| 1336 | return false; |
| 1337 | } |
| 1338 | |
| 1339 | bool MatchDoubleBinaryOperation(BinaryOperation* expr, Token::Value op, |
| 1340 | double val) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1341 | DCHECK_NOT_NULL(expr->right()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1342 | if (expr->op() == op && expr->right()->IsLiteral() && |
| 1343 | TypeOf(expr) == kAstF64) { |
| 1344 | Literal* right = expr->right()->AsLiteral(); |
| 1345 | DCHECK(right->raw_value()->IsNumber()); |
| 1346 | if (right->raw_value()->AsNumber() == val) { |
| 1347 | return true; |
| 1348 | } |
| 1349 | } |
| 1350 | return false; |
| 1351 | } |
| 1352 | |
| 1353 | enum ConvertOperation { kNone, kAsIs, kToInt, kToDouble }; |
| 1354 | |
| 1355 | ConvertOperation MatchOr(BinaryOperation* expr) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1356 | if (MatchIntBinaryOperation(expr, Token::BIT_OR, 0) && |
| 1357 | (TypeOf(expr->left()) == kAstI32)) { |
| 1358 | return kAsIs; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1359 | } else { |
| 1360 | return kNone; |
| 1361 | } |
| 1362 | } |
| 1363 | |
| 1364 | ConvertOperation MatchShr(BinaryOperation* expr) { |
| 1365 | if (MatchIntBinaryOperation(expr, Token::SHR, 0)) { |
| 1366 | // TODO(titzer): this probably needs to be kToUint |
| 1367 | return (TypeOf(expr->left()) == kAstI32) ? kAsIs : kToInt; |
| 1368 | } else { |
| 1369 | return kNone; |
| 1370 | } |
| 1371 | } |
| 1372 | |
| 1373 | ConvertOperation MatchXor(BinaryOperation* expr) { |
| 1374 | if (MatchIntBinaryOperation(expr, Token::BIT_XOR, 0xffffffff)) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1375 | DCHECK_EQ(kAstI32, TypeOf(expr->left())); |
| 1376 | DCHECK_EQ(kAstI32, TypeOf(expr->right())); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1377 | BinaryOperation* op = expr->left()->AsBinaryOperation(); |
| 1378 | if (op != nullptr) { |
| 1379 | if (MatchIntBinaryOperation(op, Token::BIT_XOR, 0xffffffff)) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1380 | DCHECK_EQ(kAstI32, TypeOf(op->right())); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1381 | if (TypeOf(op->left()) != kAstI32) { |
| 1382 | return kToInt; |
| 1383 | } else { |
| 1384 | return kAsIs; |
| 1385 | } |
| 1386 | } |
| 1387 | } |
| 1388 | } |
| 1389 | return kNone; |
| 1390 | } |
| 1391 | |
| 1392 | ConvertOperation MatchMul(BinaryOperation* expr) { |
| 1393 | if (MatchDoubleBinaryOperation(expr, Token::MUL, 1.0)) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1394 | DCHECK_EQ(kAstF64, TypeOf(expr->right())); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1395 | if (TypeOf(expr->left()) != kAstF64) { |
| 1396 | return kToDouble; |
| 1397 | } else { |
| 1398 | return kAsIs; |
| 1399 | } |
| 1400 | } else { |
| 1401 | return kNone; |
| 1402 | } |
| 1403 | } |
| 1404 | |
| 1405 | ConvertOperation MatchBinaryOperation(BinaryOperation* expr) { |
| 1406 | switch (expr->op()) { |
| 1407 | case Token::BIT_OR: |
| 1408 | return MatchOr(expr); |
| 1409 | case Token::SHR: |
| 1410 | return MatchShr(expr); |
| 1411 | case Token::BIT_XOR: |
| 1412 | return MatchXor(expr); |
| 1413 | case Token::MUL: |
| 1414 | return MatchMul(expr); |
| 1415 | default: |
| 1416 | return kNone; |
| 1417 | } |
| 1418 | } |
| 1419 | |
| 1420 | // Work around Mul + Div being defined in PPC assembler. |
| 1421 | #ifdef Mul |
| 1422 | #undef Mul |
| 1423 | #endif |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1424 | |
| 1425 | #define NON_SIGNED_BINOP(op) \ |
| 1426 | static WasmOpcode opcodes[] = { \ |
| 1427 | kExprI32##op, \ |
| 1428 | kExprI32##op, \ |
| 1429 | kExprF32##op, \ |
| 1430 | kExprF64##op \ |
| 1431 | } |
| 1432 | |
| 1433 | #define SIGNED_BINOP(op) \ |
| 1434 | static WasmOpcode opcodes[] = { \ |
| 1435 | kExprI32##op##S, \ |
| 1436 | kExprI32##op##U, \ |
| 1437 | kExprF32##op, \ |
| 1438 | kExprF64##op \ |
| 1439 | } |
| 1440 | |
| 1441 | #define NON_SIGNED_INT_BINOP(op) \ |
| 1442 | static WasmOpcode opcodes[] = { kExprI32##op, kExprI32##op } |
| 1443 | |
| 1444 | #define BINOP_CASE(token, op, V, ignore_sign) \ |
| 1445 | case token: { \ |
| 1446 | V(op); \ |
| 1447 | int type = TypeIndexOf(expr->left(), expr->right(), ignore_sign); \ |
| 1448 | current_function_builder_->Emit(opcodes[type]); \ |
| 1449 | break; \ |
| 1450 | } |
| 1451 | |
| 1452 | Expression* GetLeft(BinaryOperation* expr) { |
| 1453 | if (expr->op() == Token::BIT_XOR) { |
| 1454 | return expr->left()->AsBinaryOperation()->left(); |
| 1455 | } else { |
| 1456 | return expr->left(); |
| 1457 | } |
| 1458 | } |
| 1459 | |
| 1460 | void VisitBinaryOperation(BinaryOperation* expr) { |
| 1461 | ConvertOperation convertOperation = MatchBinaryOperation(expr); |
| 1462 | if (convertOperation == kToDouble) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1463 | RECURSE(Visit(expr->left())); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1464 | TypeIndex type = TypeIndexOf(expr->left()); |
| 1465 | if (type == kInt32 || type == kFixnum) { |
| 1466 | current_function_builder_->Emit(kExprF64SConvertI32); |
| 1467 | } else if (type == kUint32) { |
| 1468 | current_function_builder_->Emit(kExprF64UConvertI32); |
| 1469 | } else if (type == kFloat32) { |
| 1470 | current_function_builder_->Emit(kExprF64ConvertF32); |
| 1471 | } else { |
| 1472 | UNREACHABLE(); |
| 1473 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1474 | } else if (convertOperation == kToInt) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1475 | RECURSE(Visit(GetLeft(expr))); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1476 | TypeIndex type = TypeIndexOf(GetLeft(expr)); |
| 1477 | if (type == kFloat32) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1478 | current_function_builder_->Emit(kExprI32AsmjsSConvertF32); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1479 | } else if (type == kFloat64) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1480 | current_function_builder_->Emit(kExprI32AsmjsSConvertF64); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1481 | } else { |
| 1482 | UNREACHABLE(); |
| 1483 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1484 | } else if (convertOperation == kAsIs) { |
| 1485 | RECURSE(Visit(GetLeft(expr))); |
| 1486 | } else { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1487 | if (expr->op() == Token::COMMA) { |
| 1488 | current_function_builder_->Emit(kExprBlock); |
| 1489 | } |
| 1490 | |
| 1491 | RECURSE(Visit(expr->left())); |
| 1492 | RECURSE(Visit(expr->right())); |
| 1493 | |
| 1494 | if (expr->op() == Token::COMMA) { |
| 1495 | current_function_builder_->Emit(kExprEnd); |
| 1496 | } |
| 1497 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1498 | switch (expr->op()) { |
| 1499 | BINOP_CASE(Token::ADD, Add, NON_SIGNED_BINOP, true); |
| 1500 | BINOP_CASE(Token::SUB, Sub, NON_SIGNED_BINOP, true); |
| 1501 | BINOP_CASE(Token::MUL, Mul, NON_SIGNED_BINOP, true); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1502 | BINOP_CASE(Token::BIT_OR, Ior, NON_SIGNED_INT_BINOP, true); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1503 | BINOP_CASE(Token::BIT_AND, And, NON_SIGNED_INT_BINOP, true); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1504 | BINOP_CASE(Token::BIT_XOR, Xor, NON_SIGNED_INT_BINOP, true); |
| 1505 | BINOP_CASE(Token::SHL, Shl, NON_SIGNED_INT_BINOP, true); |
| 1506 | BINOP_CASE(Token::SAR, ShrS, NON_SIGNED_INT_BINOP, true); |
| 1507 | BINOP_CASE(Token::SHR, ShrU, NON_SIGNED_INT_BINOP, true); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1508 | case Token::DIV: { |
| 1509 | static WasmOpcode opcodes[] = {kExprI32AsmjsDivS, kExprI32AsmjsDivU, |
| 1510 | kExprF32Div, kExprF64Div}; |
| 1511 | int type = TypeIndexOf(expr->left(), expr->right(), false); |
| 1512 | current_function_builder_->Emit(opcodes[type]); |
| 1513 | break; |
| 1514 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1515 | case Token::MOD: { |
| 1516 | TypeIndex type = TypeIndexOf(expr->left(), expr->right(), false); |
| 1517 | if (type == kInt32) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1518 | current_function_builder_->Emit(kExprI32AsmjsRemS); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1519 | } else if (type == kUint32) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1520 | current_function_builder_->Emit(kExprI32AsmjsRemU); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1521 | } else if (type == kFloat64) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1522 | current_function_builder_->Emit(kExprF64Mod); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1523 | return; |
| 1524 | } else { |
| 1525 | UNREACHABLE(); |
| 1526 | } |
| 1527 | break; |
| 1528 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1529 | case Token::COMMA: { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1530 | break; |
| 1531 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1532 | default: |
| 1533 | UNREACHABLE(); |
| 1534 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1535 | } |
| 1536 | } |
| 1537 | |
| 1538 | void VisitCompareOperation(CompareOperation* expr) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1539 | RECURSE(Visit(expr->left())); |
| 1540 | RECURSE(Visit(expr->right())); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1541 | switch (expr->op()) { |
| 1542 | BINOP_CASE(Token::EQ, Eq, NON_SIGNED_BINOP, false); |
| 1543 | BINOP_CASE(Token::LT, Lt, SIGNED_BINOP, false); |
| 1544 | BINOP_CASE(Token::LTE, Le, SIGNED_BINOP, false); |
| 1545 | BINOP_CASE(Token::GT, Gt, SIGNED_BINOP, false); |
| 1546 | BINOP_CASE(Token::GTE, Ge, SIGNED_BINOP, false); |
| 1547 | default: |
| 1548 | UNREACHABLE(); |
| 1549 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1550 | } |
| 1551 | |
| 1552 | #undef BINOP_CASE |
| 1553 | #undef NON_SIGNED_INT_BINOP |
| 1554 | #undef SIGNED_BINOP |
| 1555 | #undef NON_SIGNED_BINOP |
| 1556 | |
| 1557 | enum TypeIndex { |
| 1558 | kInt32 = 0, |
| 1559 | kUint32 = 1, |
| 1560 | kFloat32 = 2, |
| 1561 | kFloat64 = 3, |
| 1562 | kFixnum = 4 |
| 1563 | }; |
| 1564 | |
| 1565 | TypeIndex TypeIndexOf(Expression* left, Expression* right, bool ignore_sign) { |
| 1566 | TypeIndex left_index = TypeIndexOf(left); |
| 1567 | TypeIndex right_index = TypeIndexOf(right); |
| 1568 | if (left_index == kFixnum) { |
| 1569 | left_index = right_index; |
| 1570 | } |
| 1571 | if (right_index == kFixnum) { |
| 1572 | right_index = left_index; |
| 1573 | } |
| 1574 | if (left_index == kFixnum && right_index == kFixnum) { |
| 1575 | left_index = kInt32; |
| 1576 | right_index = kInt32; |
| 1577 | } |
| 1578 | DCHECK((left_index == right_index) || |
| 1579 | (ignore_sign && (left_index <= 1) && (right_index <= 1))); |
| 1580 | return left_index; |
| 1581 | } |
| 1582 | |
| 1583 | TypeIndex TypeIndexOf(Expression* expr) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1584 | DCHECK_EQ(bounds_->get(expr).lower, bounds_->get(expr).upper); |
| 1585 | Type* type = bounds_->get(expr).lower; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1586 | if (type->Is(cache_.kAsmFixnum)) { |
| 1587 | return kFixnum; |
| 1588 | } else if (type->Is(cache_.kAsmSigned)) { |
| 1589 | return kInt32; |
| 1590 | } else if (type->Is(cache_.kAsmUnsigned)) { |
| 1591 | return kUint32; |
| 1592 | } else if (type->Is(cache_.kAsmInt)) { |
| 1593 | return kInt32; |
| 1594 | } else if (type->Is(cache_.kAsmFloat)) { |
| 1595 | return kFloat32; |
| 1596 | } else if (type->Is(cache_.kAsmDouble)) { |
| 1597 | return kFloat64; |
| 1598 | } else { |
| 1599 | UNREACHABLE(); |
| 1600 | return kInt32; |
| 1601 | } |
| 1602 | } |
| 1603 | |
| 1604 | #undef CASE |
| 1605 | #undef NON_SIGNED_INT |
| 1606 | #undef SIGNED |
| 1607 | #undef NON_SIGNED |
| 1608 | |
| 1609 | void VisitThisFunction(ThisFunction* expr) { UNREACHABLE(); } |
| 1610 | |
| 1611 | void VisitDeclarations(ZoneList<Declaration*>* decls) { |
| 1612 | for (int i = 0; i < decls->length(); ++i) { |
| 1613 | Declaration* decl = decls->at(i); |
| 1614 | RECURSE(Visit(decl)); |
| 1615 | } |
| 1616 | } |
| 1617 | |
| 1618 | void VisitClassLiteral(ClassLiteral* expr) { UNREACHABLE(); } |
| 1619 | |
| 1620 | void VisitSpread(Spread* expr) { UNREACHABLE(); } |
| 1621 | |
| 1622 | void VisitSuperPropertyReference(SuperPropertyReference* expr) { |
| 1623 | UNREACHABLE(); |
| 1624 | } |
| 1625 | |
| 1626 | void VisitSuperCallReference(SuperCallReference* expr) { UNREACHABLE(); } |
| 1627 | |
| 1628 | void VisitSloppyBlockFunctionStatement(SloppyBlockFunctionStatement* expr) { |
| 1629 | UNREACHABLE(); |
| 1630 | } |
| 1631 | |
| 1632 | void VisitDoExpression(DoExpression* expr) { UNREACHABLE(); } |
| 1633 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1634 | void VisitRewritableExpression(RewritableExpression* expr) { UNREACHABLE(); } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1635 | |
| 1636 | struct IndexContainer : public ZoneObject { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1637 | uint32_t index; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1638 | }; |
| 1639 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1640 | uint32_t LookupOrInsertLocal(Variable* v, LocalType type) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1641 | DCHECK_NOT_NULL(current_function_builder_); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1642 | ZoneHashMap::Entry* entry = |
| 1643 | local_variables_.Lookup(v, ComputePointerHash(v)); |
| 1644 | if (entry == nullptr) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1645 | uint32_t index; |
| 1646 | DCHECK(!v->IsParameter()); |
| 1647 | index = current_function_builder_->AddLocal(type); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1648 | IndexContainer* container = new (zone()) IndexContainer(); |
| 1649 | container->index = index; |
| 1650 | entry = local_variables_.LookupOrInsert(v, ComputePointerHash(v), |
| 1651 | ZoneAllocationPolicy(zone())); |
| 1652 | entry->value = container; |
| 1653 | } |
| 1654 | return (reinterpret_cast<IndexContainer*>(entry->value))->index; |
| 1655 | } |
| 1656 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1657 | void InsertParameter(Variable* v, LocalType type, uint32_t index) { |
| 1658 | DCHECK(v->IsParameter()); |
| 1659 | DCHECK_NOT_NULL(current_function_builder_); |
| 1660 | ZoneHashMap::Entry* entry = |
| 1661 | local_variables_.Lookup(v, ComputePointerHash(v)); |
| 1662 | DCHECK_NULL(entry); |
| 1663 | IndexContainer* container = new (zone()) IndexContainer(); |
| 1664 | container->index = index; |
| 1665 | entry = local_variables_.LookupOrInsert(v, ComputePointerHash(v), |
| 1666 | ZoneAllocationPolicy(zone())); |
| 1667 | entry->value = container; |
| 1668 | } |
| 1669 | |
| 1670 | uint32_t LookupOrInsertGlobal(Variable* v, LocalType type) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1671 | ZoneHashMap::Entry* entry = |
| 1672 | global_variables_.Lookup(v, ComputePointerHash(v)); |
| 1673 | if (entry == nullptr) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1674 | uint32_t index = |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1675 | builder_->AddGlobal(WasmOpcodes::MachineTypeFor(type), 0); |
| 1676 | IndexContainer* container = new (zone()) IndexContainer(); |
| 1677 | container->index = index; |
| 1678 | entry = global_variables_.LookupOrInsert(v, ComputePointerHash(v), |
| 1679 | ZoneAllocationPolicy(zone())); |
| 1680 | entry->value = container; |
| 1681 | } |
| 1682 | return (reinterpret_cast<IndexContainer*>(entry->value))->index; |
| 1683 | } |
| 1684 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1685 | uint32_t LookupOrInsertFunction(Variable* v) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1686 | DCHECK_NOT_NULL(builder_); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1687 | ZoneHashMap::Entry* entry = functions_.Lookup(v, ComputePointerHash(v)); |
| 1688 | if (entry == nullptr) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1689 | uint32_t index = builder_->AddFunction(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1690 | IndexContainer* container = new (zone()) IndexContainer(); |
| 1691 | container->index = index; |
| 1692 | entry = functions_.LookupOrInsert(v, ComputePointerHash(v), |
| 1693 | ZoneAllocationPolicy(zone())); |
| 1694 | entry->value = container; |
| 1695 | } |
| 1696 | return (reinterpret_cast<IndexContainer*>(entry->value))->index; |
| 1697 | } |
| 1698 | |
| 1699 | LocalType TypeOf(Expression* expr) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1700 | DCHECK_EQ(bounds_->get(expr).lower, bounds_->get(expr).upper); |
| 1701 | return TypeFrom(bounds_->get(expr).lower); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1702 | } |
| 1703 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1704 | LocalType TypeFrom(Type* type) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1705 | if (type->Is(cache_.kAsmInt)) { |
| 1706 | return kAstI32; |
| 1707 | } else if (type->Is(cache_.kAsmFloat)) { |
| 1708 | return kAstF32; |
| 1709 | } else if (type->Is(cache_.kAsmDouble)) { |
| 1710 | return kAstF64; |
| 1711 | } else { |
| 1712 | return kAstStmt; |
| 1713 | } |
| 1714 | } |
| 1715 | |
| 1716 | Zone* zone() { return zone_; } |
| 1717 | |
| 1718 | ZoneHashMap local_variables_; |
| 1719 | ZoneHashMap functions_; |
| 1720 | ZoneHashMap global_variables_; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1721 | AsmScope scope_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1722 | WasmModuleBuilder* builder_; |
| 1723 | WasmFunctionBuilder* current_function_builder_; |
| 1724 | FunctionLiteral* literal_; |
| 1725 | Isolate* isolate_; |
| 1726 | Zone* zone_; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1727 | Handle<Object> foreign_; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1728 | AsmTyper* typer_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1729 | TypeCache const& cache_; |
| 1730 | ZoneVector<std::pair<BreakableStatement*, bool>> breakable_blocks_; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1731 | uint32_t init_function_index_; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1732 | uint32_t next_table_index_; |
| 1733 | ZoneHashMap function_tables_; |
| 1734 | ImportedFunctionTable imported_function_table_; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 1735 | const AstTypeBounds* bounds_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1736 | |
| 1737 | DEFINE_AST_VISITOR_SUBCLASS_MEMBERS(); |
| 1738 | |
| 1739 | private: |
| 1740 | DISALLOW_COPY_AND_ASSIGN(AsmWasmBuilderImpl); |
| 1741 | }; |
| 1742 | |
| 1743 | AsmWasmBuilder::AsmWasmBuilder(Isolate* isolate, Zone* zone, |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1744 | FunctionLiteral* literal, Handle<Object> foreign, |
| 1745 | AsmTyper* typer) |
| 1746 | : isolate_(isolate), |
| 1747 | zone_(zone), |
| 1748 | literal_(literal), |
| 1749 | foreign_(foreign), |
| 1750 | typer_(typer) {} |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1751 | |
| 1752 | // TODO(aseemgarg): probably should take zone (to write wasm to) as input so |
| 1753 | // that zone in constructor may be thrown away once wasm module is written. |
| 1754 | WasmModuleIndex* AsmWasmBuilder::Run() { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1755 | AsmWasmBuilderImpl impl(isolate_, zone_, literal_, foreign_, typer_); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1756 | impl.Compile(); |
| 1757 | WasmModuleWriter* writer = impl.builder_->Build(zone_); |
| 1758 | return writer->WriteTo(zone_); |
| 1759 | } |
| 1760 | } // namespace wasm |
| 1761 | } // namespace internal |
| 1762 | } // namespace v8 |