Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 1 | // Copyright 2010 the V8 project authors. All rights reserved. |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | #include "v8.h" |
| 29 | |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 30 | #if defined(V8_TARGET_ARCH_IA32) |
| 31 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 32 | #include "code-stubs.h" |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 33 | #include "codegen-inl.h" |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 34 | #include "compiler.h" |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 35 | #include "debug.h" |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 36 | #include "full-codegen.h" |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 37 | #include "parser.h" |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 38 | #include "scopes.h" |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 39 | #include "stub-cache.h" |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 40 | |
| 41 | namespace v8 { |
| 42 | namespace internal { |
| 43 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 44 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 45 | #define __ ACCESS_MASM(masm_) |
| 46 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 47 | |
| 48 | class JumpPatchSite BASE_EMBEDDED { |
| 49 | public: |
| 50 | explicit JumpPatchSite(MacroAssembler* masm) |
| 51 | : masm_(masm) { |
| 52 | #ifdef DEBUG |
| 53 | info_emitted_ = false; |
| 54 | #endif |
| 55 | } |
| 56 | |
| 57 | ~JumpPatchSite() { |
| 58 | ASSERT(patch_site_.is_bound() == info_emitted_); |
| 59 | } |
| 60 | |
| 61 | void EmitJumpIfNotSmi(Register reg, NearLabel* target) { |
| 62 | __ test(reg, Immediate(kSmiTagMask)); |
| 63 | EmitJump(not_carry, target); // Always taken before patched. |
| 64 | } |
| 65 | |
| 66 | void EmitJumpIfSmi(Register reg, NearLabel* target) { |
| 67 | __ test(reg, Immediate(kSmiTagMask)); |
| 68 | EmitJump(carry, target); // Never taken before patched. |
| 69 | } |
| 70 | |
| 71 | void EmitPatchInfo() { |
| 72 | int delta_to_patch_site = masm_->SizeOfCodeGeneratedSince(&patch_site_); |
| 73 | ASSERT(is_int8(delta_to_patch_site)); |
| 74 | __ test(eax, Immediate(delta_to_patch_site)); |
| 75 | #ifdef DEBUG |
| 76 | info_emitted_ = true; |
| 77 | #endif |
| 78 | } |
| 79 | |
| 80 | bool is_bound() const { return patch_site_.is_bound(); } |
| 81 | |
| 82 | private: |
| 83 | // jc will be patched with jz, jnc will become jnz. |
| 84 | void EmitJump(Condition cc, NearLabel* target) { |
| 85 | ASSERT(!patch_site_.is_bound() && !info_emitted_); |
| 86 | ASSERT(cc == carry || cc == not_carry); |
| 87 | __ bind(&patch_site_); |
| 88 | __ j(cc, target); |
| 89 | } |
| 90 | |
| 91 | MacroAssembler* masm_; |
| 92 | Label patch_site_; |
| 93 | #ifdef DEBUG |
| 94 | bool info_emitted_; |
| 95 | #endif |
| 96 | }; |
| 97 | |
| 98 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 99 | // Generate code for a JS function. On entry to the function the receiver |
| 100 | // and arguments have been pushed on the stack left to right, with the |
| 101 | // return address on top of them. The actual argument count matches the |
| 102 | // formal parameter count expected by the function. |
| 103 | // |
| 104 | // The live registers are: |
| 105 | // o edi: the JS function object being called (ie, ourselves) |
| 106 | // o esi: our context |
| 107 | // o ebp: our caller's frame pointer |
| 108 | // o esp: stack pointer (pointing to return address) |
| 109 | // |
| 110 | // The function builds a JS frame. Please see JavaScriptFrameConstants in |
| 111 | // frames-ia32.h for its layout. |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 112 | void FullCodeGenerator::Generate(CompilationInfo* info) { |
Andrei Popescu | 3100271 | 2010-02-23 13:46:05 +0000 | [diff] [blame] | 113 | ASSERT(info_ == NULL); |
| 114 | info_ = info; |
| 115 | SetFunctionPosition(function()); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 116 | Comment cmnt(masm_, "[ function compiled by full code generator"); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 117 | |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 118 | #ifdef DEBUG |
| 119 | if (strlen(FLAG_stop_at) > 0 && |
| 120 | info->function()->name()->IsEqualTo(CStrVector(FLAG_stop_at))) { |
| 121 | __ int3(); |
| 122 | } |
| 123 | #endif |
| 124 | |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 125 | __ push(ebp); // Caller's frame pointer. |
| 126 | __ mov(ebp, esp); |
| 127 | __ push(esi); // Callee's context. |
| 128 | __ push(edi); // Callee's JS Function. |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 129 | |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 130 | { Comment cmnt(masm_, "[ Allocate locals"); |
| 131 | int locals_count = scope()->num_stack_slots(); |
| 132 | if (locals_count == 1) { |
| 133 | __ push(Immediate(Factory::undefined_value())); |
| 134 | } else if (locals_count > 1) { |
| 135 | __ mov(eax, Immediate(Factory::undefined_value())); |
| 136 | for (int i = 0; i < locals_count; i++) { |
| 137 | __ push(eax); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 138 | } |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 139 | } |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 140 | } |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 141 | |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 142 | bool function_in_register = true; |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 143 | |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 144 | // Possibly allocate a local context. |
| 145 | int heap_slots = scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; |
| 146 | if (heap_slots > 0) { |
| 147 | Comment cmnt(masm_, "[ Allocate local context"); |
| 148 | // Argument to NewContext is the function, which is still in edi. |
| 149 | __ push(edi); |
| 150 | if (heap_slots <= FastNewContextStub::kMaximumSlots) { |
| 151 | FastNewContextStub stub(heap_slots); |
Leon Clarke | 4515c47 | 2010-02-03 11:58:03 +0000 | [diff] [blame] | 152 | __ CallStub(&stub); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 153 | } else { |
| 154 | __ CallRuntime(Runtime::kNewContext, 1); |
Leon Clarke | 4515c47 | 2010-02-03 11:58:03 +0000 | [diff] [blame] | 155 | } |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 156 | function_in_register = false; |
| 157 | // Context is returned in both eax and esi. It replaces the context |
| 158 | // passed to us. It's saved in the stack and kept live in esi. |
| 159 | __ mov(Operand(ebp, StandardFrameConstants::kContextOffset), esi); |
| 160 | |
| 161 | // Copy parameters into context if necessary. |
| 162 | int num_parameters = scope()->num_parameters(); |
| 163 | for (int i = 0; i < num_parameters; i++) { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 164 | Slot* slot = scope()->parameter(i)->AsSlot(); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 165 | if (slot != NULL && slot->type() == Slot::CONTEXT) { |
| 166 | int parameter_offset = StandardFrameConstants::kCallerSPOffset + |
| 167 | (num_parameters - 1 - i) * kPointerSize; |
| 168 | // Load parameter from stack. |
| 169 | __ mov(eax, Operand(ebp, parameter_offset)); |
| 170 | // Store it in the context. |
| 171 | int context_offset = Context::SlotOffset(slot->index()); |
| 172 | __ mov(Operand(esi, context_offset), eax); |
| 173 | // Update the write barrier. This clobbers all involved |
| 174 | // registers, so we have use a third register to avoid |
| 175 | // clobbering esi. |
| 176 | __ mov(ecx, esi); |
| 177 | __ RecordWrite(ecx, context_offset, eax, ebx); |
| 178 | } |
| 179 | } |
| 180 | } |
| 181 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 182 | Variable* arguments = scope()->arguments(); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 183 | if (arguments != NULL) { |
| 184 | // Function uses arguments object. |
| 185 | Comment cmnt(masm_, "[ Allocate arguments object"); |
| 186 | if (function_in_register) { |
| 187 | __ push(edi); |
| 188 | } else { |
| 189 | __ push(Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); |
| 190 | } |
| 191 | // Receiver is just before the parameters on the caller's stack. |
| 192 | int offset = scope()->num_parameters() * kPointerSize; |
| 193 | __ lea(edx, |
| 194 | Operand(ebp, StandardFrameConstants::kCallerSPOffset + offset)); |
| 195 | __ push(edx); |
| 196 | __ push(Immediate(Smi::FromInt(scope()->num_parameters()))); |
| 197 | // Arguments to ArgumentsAccessStub: |
| 198 | // function, receiver address, parameter count. |
| 199 | // The stub will rewrite receiver and parameter count if the previous |
| 200 | // stack frame was an arguments adapter frame. |
| 201 | ArgumentsAccessStub stub(ArgumentsAccessStub::NEW_OBJECT); |
| 202 | __ CallStub(&stub); |
| 203 | __ mov(ecx, eax); // Duplicate result. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 204 | Move(arguments->AsSlot(), eax, ebx, edx); |
| 205 | Slot* dot_arguments_slot = scope()->arguments_shadow()->AsSlot(); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 206 | Move(dot_arguments_slot, ecx, ebx, edx); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 207 | } |
| 208 | |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 209 | { Comment cmnt(masm_, "[ Declarations"); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 210 | // For named function expressions, declare the function name as a |
| 211 | // constant. |
| 212 | if (scope()->is_function_scope() && scope()->function() != NULL) { |
| 213 | EmitDeclaration(scope()->function(), Variable::CONST, NULL); |
| 214 | } |
| 215 | // Visit all the explicit declarations unless there is an illegal |
| 216 | // redeclaration. |
| 217 | if (scope()->HasIllegalRedeclaration()) { |
| 218 | scope()->VisitIllegalRedeclaration(this); |
| 219 | } else { |
| 220 | VisitDeclarations(scope()->declarations()); |
| 221 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 222 | } |
| 223 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 224 | if (FLAG_trace) { |
| 225 | __ CallRuntime(Runtime::kTraceEnter, 0); |
| 226 | } |
| 227 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 228 | { Comment cmnt(masm_, "[ Stack check"); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 229 | PrepareForBailout(info->function(), NO_REGISTERS); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 230 | NearLabel ok; |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 231 | ExternalReference stack_limit = |
| 232 | ExternalReference::address_of_stack_limit(); |
| 233 | __ cmp(esp, Operand::StaticVariable(stack_limit)); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 234 | __ j(above_equal, &ok, taken); |
| 235 | StackCheckStub stub; |
| 236 | __ CallStub(&stub); |
| 237 | __ bind(&ok); |
| 238 | } |
| 239 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 240 | { Comment cmnt(masm_, "[ Body"); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 241 | ASSERT(loop_depth() == 0); |
Andrei Popescu | 3100271 | 2010-02-23 13:46:05 +0000 | [diff] [blame] | 242 | VisitStatements(function()->body()); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 243 | ASSERT(loop_depth() == 0); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 244 | } |
| 245 | |
| 246 | { Comment cmnt(masm_, "[ return <undefined>;"); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 247 | // Emit a 'return undefined' in case control fell off the end of the body. |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 248 | __ mov(eax, Factory::undefined_value()); |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 249 | EmitReturnSequence(); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 250 | } |
| 251 | } |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 252 | |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 253 | |
Ben Murdoch | db5a90a | 2011-01-06 18:27:03 +0000 | [diff] [blame] | 254 | void FullCodeGenerator::ClearAccumulator() { |
| 255 | __ Set(eax, Immediate(Smi::FromInt(0))); |
| 256 | } |
| 257 | |
| 258 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 259 | void FullCodeGenerator::EmitStackCheck(IterationStatement* stmt) { |
| 260 | Comment cmnt(masm_, "[ Stack check"); |
| 261 | NearLabel ok; |
| 262 | ExternalReference stack_limit = ExternalReference::address_of_stack_limit(); |
| 263 | __ cmp(esp, Operand::StaticVariable(stack_limit)); |
| 264 | __ j(above_equal, &ok, taken); |
| 265 | StackCheckStub stub; |
| 266 | __ CallStub(&stub); |
| 267 | __ bind(&ok); |
| 268 | PrepareForBailoutForId(stmt->EntryId(), NO_REGISTERS); |
| 269 | PrepareForBailoutForId(stmt->OsrEntryId(), NO_REGISTERS); |
| 270 | RecordStackCheck(stmt->OsrEntryId()); |
| 271 | // Loop stack checks can be patched to perform on-stack |
| 272 | // replacement. In order to decide whether or not to perform OSR we |
| 273 | // embed the loop depth in a test instruction after the call so we |
| 274 | // can extract it from the OSR builtin. |
| 275 | ASSERT(loop_depth() > 0); |
| 276 | __ test(eax, Immediate(Min(loop_depth(), Code::kMaxLoopNestingMarker))); |
| 277 | } |
| 278 | |
| 279 | |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 280 | void FullCodeGenerator::EmitReturnSequence() { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 281 | Comment cmnt(masm_, "[ Return sequence"); |
| 282 | if (return_label_.is_bound()) { |
| 283 | __ jmp(&return_label_); |
| 284 | } else { |
| 285 | // Common return label |
| 286 | __ bind(&return_label_); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 287 | if (FLAG_trace) { |
| 288 | __ push(eax); |
| 289 | __ CallRuntime(Runtime::kTraceExit, 1); |
| 290 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 291 | #ifdef DEBUG |
| 292 | // Add a label for checking the size of the code used for returning. |
| 293 | Label check_exit_codesize; |
| 294 | masm_->bind(&check_exit_codesize); |
| 295 | #endif |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 296 | SetSourcePosition(function()->end_position() - 1); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 297 | __ RecordJSReturn(); |
| 298 | // Do not use the leave instruction here because it is too short to |
| 299 | // patch with the code required by the debugger. |
| 300 | __ mov(esp, ebp); |
| 301 | __ pop(ebp); |
Andrei Popescu | 3100271 | 2010-02-23 13:46:05 +0000 | [diff] [blame] | 302 | __ ret((scope()->num_parameters() + 1) * kPointerSize); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 303 | #ifdef ENABLE_DEBUGGER_SUPPORT |
| 304 | // Check that the size of the code used for returning matches what is |
| 305 | // expected by the debugger. |
| 306 | ASSERT_EQ(Assembler::kJSReturnSequenceLength, |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 307 | masm_->SizeOfCodeGeneratedSince(&check_exit_codesize)); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 308 | #endif |
| 309 | } |
| 310 | } |
| 311 | |
| 312 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 313 | FullCodeGenerator::ConstantOperand FullCodeGenerator::GetConstantOperand( |
| 314 | Token::Value op, Expression* left, Expression* right) { |
| 315 | ASSERT(ShouldInlineSmiCase(op)); |
| 316 | if (op == Token::DIV || op == Token::MOD || op == Token::MUL) { |
| 317 | // We never generate inlined constant smi operations for these. |
| 318 | return kNoConstants; |
| 319 | } else if (right->IsSmiLiteral()) { |
| 320 | return kRightConstant; |
| 321 | } else if (left->IsSmiLiteral() && !Token::IsShiftOp(op)) { |
| 322 | return kLeftConstant; |
| 323 | } else { |
| 324 | return kNoConstants; |
| 325 | } |
| 326 | } |
| 327 | |
| 328 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 329 | void FullCodeGenerator::EffectContext::Plug(Slot* slot) const { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 330 | } |
| 331 | |
| 332 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 333 | void FullCodeGenerator::AccumulatorValueContext::Plug(Slot* slot) const { |
| 334 | MemOperand slot_operand = codegen()->EmitSlotSearch(slot, result_register()); |
| 335 | __ mov(result_register(), slot_operand); |
| 336 | } |
| 337 | |
| 338 | |
| 339 | void FullCodeGenerator::StackValueContext::Plug(Slot* slot) const { |
| 340 | MemOperand slot_operand = codegen()->EmitSlotSearch(slot, result_register()); |
| 341 | // Memory operands can be pushed directly. |
| 342 | __ push(slot_operand); |
| 343 | } |
| 344 | |
| 345 | |
| 346 | void FullCodeGenerator::TestContext::Plug(Slot* slot) const { |
| 347 | // For simplicity we always test the accumulator register. |
| 348 | codegen()->Move(result_register(), slot); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 349 | codegen()->PrepareForBailoutBeforeSplit(TOS_REG, false, NULL, NULL); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 350 | codegen()->DoTest(true_label_, false_label_, fall_through_); |
| 351 | } |
| 352 | |
| 353 | |
| 354 | void FullCodeGenerator::EffectContext::Plug(Heap::RootListIndex index) const { |
| 355 | UNREACHABLE(); // Not used on IA32. |
| 356 | } |
| 357 | |
| 358 | |
| 359 | void FullCodeGenerator::AccumulatorValueContext::Plug( |
| 360 | Heap::RootListIndex index) const { |
| 361 | UNREACHABLE(); // Not used on IA32. |
| 362 | } |
| 363 | |
| 364 | |
| 365 | void FullCodeGenerator::StackValueContext::Plug( |
| 366 | Heap::RootListIndex index) const { |
| 367 | UNREACHABLE(); // Not used on IA32. |
| 368 | } |
| 369 | |
| 370 | |
| 371 | void FullCodeGenerator::TestContext::Plug(Heap::RootListIndex index) const { |
| 372 | UNREACHABLE(); // Not used on IA32. |
| 373 | } |
| 374 | |
| 375 | |
| 376 | void FullCodeGenerator::EffectContext::Plug(Handle<Object> lit) const { |
| 377 | } |
| 378 | |
| 379 | |
| 380 | void FullCodeGenerator::AccumulatorValueContext::Plug( |
| 381 | Handle<Object> lit) const { |
| 382 | __ mov(result_register(), lit); |
| 383 | } |
| 384 | |
| 385 | |
| 386 | void FullCodeGenerator::StackValueContext::Plug(Handle<Object> lit) const { |
| 387 | // Immediates can be pushed directly. |
| 388 | __ push(Immediate(lit)); |
| 389 | } |
| 390 | |
| 391 | |
| 392 | void FullCodeGenerator::TestContext::Plug(Handle<Object> lit) const { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 393 | codegen()->PrepareForBailoutBeforeSplit(TOS_REG, |
| 394 | true, |
| 395 | true_label_, |
| 396 | false_label_); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 397 | ASSERT(!lit->IsUndetectableObject()); // There are no undetectable literals. |
| 398 | if (lit->IsUndefined() || lit->IsNull() || lit->IsFalse()) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 399 | if (false_label_ != fall_through_) __ jmp(false_label_); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 400 | } else if (lit->IsTrue() || lit->IsJSObject()) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 401 | if (true_label_ != fall_through_) __ jmp(true_label_); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 402 | } else if (lit->IsString()) { |
| 403 | if (String::cast(*lit)->length() == 0) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 404 | if (false_label_ != fall_through_) __ jmp(false_label_); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 405 | } else { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 406 | if (true_label_ != fall_through_) __ jmp(true_label_); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 407 | } |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 408 | } else if (lit->IsSmi()) { |
| 409 | if (Smi::cast(*lit)->value() == 0) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 410 | if (false_label_ != fall_through_) __ jmp(false_label_); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 411 | } else { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 412 | if (true_label_ != fall_through_) __ jmp(true_label_); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 413 | } |
| 414 | } else { |
| 415 | // For simplicity we always test the accumulator register. |
| 416 | __ mov(result_register(), lit); |
| 417 | codegen()->DoTest(true_label_, false_label_, fall_through_); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 418 | } |
| 419 | } |
| 420 | |
| 421 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 422 | void FullCodeGenerator::EffectContext::DropAndPlug(int count, |
| 423 | Register reg) const { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 424 | ASSERT(count > 0); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 425 | __ Drop(count); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 426 | } |
| 427 | |
| 428 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 429 | void FullCodeGenerator::AccumulatorValueContext::DropAndPlug( |
| 430 | int count, |
| 431 | Register reg) const { |
| 432 | ASSERT(count > 0); |
| 433 | __ Drop(count); |
| 434 | __ Move(result_register(), reg); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 435 | } |
| 436 | |
| 437 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 438 | void FullCodeGenerator::StackValueContext::DropAndPlug(int count, |
| 439 | Register reg) const { |
| 440 | ASSERT(count > 0); |
| 441 | if (count > 1) __ Drop(count - 1); |
| 442 | __ mov(Operand(esp, 0), reg); |
| 443 | } |
| 444 | |
| 445 | |
| 446 | void FullCodeGenerator::TestContext::DropAndPlug(int count, |
| 447 | Register reg) const { |
| 448 | ASSERT(count > 0); |
| 449 | // For simplicity we always test the accumulator register. |
| 450 | __ Drop(count); |
| 451 | __ Move(result_register(), reg); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 452 | codegen()->PrepareForBailoutBeforeSplit(TOS_REG, false, NULL, NULL); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 453 | codegen()->DoTest(true_label_, false_label_, fall_through_); |
| 454 | } |
| 455 | |
| 456 | |
| 457 | void FullCodeGenerator::EffectContext::Plug(Label* materialize_true, |
| 458 | Label* materialize_false) const { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 459 | ASSERT(materialize_true == materialize_false); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 460 | __ bind(materialize_true); |
| 461 | } |
| 462 | |
| 463 | |
| 464 | void FullCodeGenerator::AccumulatorValueContext::Plug( |
| 465 | Label* materialize_true, |
| 466 | Label* materialize_false) const { |
| 467 | NearLabel done; |
| 468 | __ bind(materialize_true); |
| 469 | __ mov(result_register(), Factory::true_value()); |
| 470 | __ jmp(&done); |
| 471 | __ bind(materialize_false); |
| 472 | __ mov(result_register(), Factory::false_value()); |
| 473 | __ bind(&done); |
| 474 | } |
| 475 | |
| 476 | |
| 477 | void FullCodeGenerator::StackValueContext::Plug( |
| 478 | Label* materialize_true, |
| 479 | Label* materialize_false) const { |
| 480 | NearLabel done; |
| 481 | __ bind(materialize_true); |
| 482 | __ push(Immediate(Factory::true_value())); |
| 483 | __ jmp(&done); |
| 484 | __ bind(materialize_false); |
| 485 | __ push(Immediate(Factory::false_value())); |
| 486 | __ bind(&done); |
| 487 | } |
| 488 | |
| 489 | |
| 490 | void FullCodeGenerator::TestContext::Plug(Label* materialize_true, |
| 491 | Label* materialize_false) const { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 492 | ASSERT(materialize_true == true_label_); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 493 | ASSERT(materialize_false == false_label_); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 494 | } |
| 495 | |
| 496 | |
| 497 | void FullCodeGenerator::EffectContext::Plug(bool flag) const { |
| 498 | } |
| 499 | |
| 500 | |
| 501 | void FullCodeGenerator::AccumulatorValueContext::Plug(bool flag) const { |
| 502 | Handle<Object> value = |
| 503 | flag ? Factory::true_value() : Factory::false_value(); |
| 504 | __ mov(result_register(), value); |
| 505 | } |
| 506 | |
| 507 | |
| 508 | void FullCodeGenerator::StackValueContext::Plug(bool flag) const { |
| 509 | Handle<Object> value = |
| 510 | flag ? Factory::true_value() : Factory::false_value(); |
| 511 | __ push(Immediate(value)); |
| 512 | } |
| 513 | |
| 514 | |
| 515 | void FullCodeGenerator::TestContext::Plug(bool flag) const { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 516 | codegen()->PrepareForBailoutBeforeSplit(TOS_REG, |
| 517 | true, |
| 518 | true_label_, |
| 519 | false_label_); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 520 | if (flag) { |
| 521 | if (true_label_ != fall_through_) __ jmp(true_label_); |
| 522 | } else { |
| 523 | if (false_label_ != fall_through_) __ jmp(false_label_); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 524 | } |
| 525 | } |
| 526 | |
| 527 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 528 | void FullCodeGenerator::DoTest(Label* if_true, |
| 529 | Label* if_false, |
| 530 | Label* fall_through) { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 531 | // Emit the inlined tests assumed by the stub. |
| 532 | __ cmp(result_register(), Factory::undefined_value()); |
| 533 | __ j(equal, if_false); |
| 534 | __ cmp(result_register(), Factory::true_value()); |
| 535 | __ j(equal, if_true); |
| 536 | __ cmp(result_register(), Factory::false_value()); |
| 537 | __ j(equal, if_false); |
| 538 | ASSERT_EQ(0, kSmiTag); |
| 539 | __ test(result_register(), Operand(result_register())); |
| 540 | __ j(zero, if_false); |
| 541 | __ test(result_register(), Immediate(kSmiTagMask)); |
| 542 | __ j(zero, if_true); |
| 543 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 544 | // Call the ToBoolean stub for all other cases. |
| 545 | ToBooleanStub stub; |
| 546 | __ push(result_register()); |
| 547 | __ CallStub(&stub); |
| 548 | __ test(eax, Operand(eax)); |
| 549 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 550 | // The stub returns nonzero for true. |
| 551 | Split(not_zero, if_true, if_false, fall_through); |
| 552 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 553 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 554 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 555 | void FullCodeGenerator::Split(Condition cc, |
| 556 | Label* if_true, |
| 557 | Label* if_false, |
| 558 | Label* fall_through) { |
| 559 | if (if_false == fall_through) { |
| 560 | __ j(cc, if_true); |
| 561 | } else if (if_true == fall_through) { |
| 562 | __ j(NegateCondition(cc), if_false); |
| 563 | } else { |
| 564 | __ j(cc, if_true); |
| 565 | __ jmp(if_false); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 566 | } |
| 567 | } |
| 568 | |
| 569 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 570 | MemOperand FullCodeGenerator::EmitSlotSearch(Slot* slot, Register scratch) { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 571 | switch (slot->type()) { |
| 572 | case Slot::PARAMETER: |
| 573 | case Slot::LOCAL: |
| 574 | return Operand(ebp, SlotOffset(slot)); |
| 575 | case Slot::CONTEXT: { |
| 576 | int context_chain_length = |
Andrei Popescu | 3100271 | 2010-02-23 13:46:05 +0000 | [diff] [blame] | 577 | scope()->ContextChainLength(slot->var()->scope()); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 578 | __ LoadContext(scratch, context_chain_length); |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 579 | return ContextOperand(scratch, slot->index()); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 580 | } |
| 581 | case Slot::LOOKUP: |
| 582 | UNREACHABLE(); |
| 583 | } |
| 584 | UNREACHABLE(); |
| 585 | return Operand(eax, 0); |
| 586 | } |
| 587 | |
| 588 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 589 | void FullCodeGenerator::Move(Register destination, Slot* source) { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 590 | MemOperand location = EmitSlotSearch(source, destination); |
| 591 | __ mov(destination, location); |
| 592 | } |
| 593 | |
| 594 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 595 | void FullCodeGenerator::Move(Slot* dst, |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 596 | Register src, |
| 597 | Register scratch1, |
| 598 | Register scratch2) { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 599 | ASSERT(dst->type() != Slot::LOOKUP); // Not yet implemented. |
| 600 | ASSERT(!scratch1.is(src) && !scratch2.is(src)); |
| 601 | MemOperand location = EmitSlotSearch(dst, scratch1); |
| 602 | __ mov(location, src); |
| 603 | // Emit the write barrier code if the location is in the heap. |
| 604 | if (dst->type() == Slot::CONTEXT) { |
| 605 | int offset = FixedArray::kHeaderSize + dst->index() * kPointerSize; |
| 606 | __ RecordWrite(scratch1, offset, src, scratch2); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 607 | } |
| 608 | } |
| 609 | |
| 610 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 611 | void FullCodeGenerator::PrepareForBailoutBeforeSplit(State state, |
| 612 | bool should_normalize, |
| 613 | Label* if_true, |
| 614 | Label* if_false) { |
| 615 | // Only prepare for bailouts before splits if we're in a test |
| 616 | // context. Otherwise, we let the Visit function deal with the |
| 617 | // preparation to avoid preparing with the same AST id twice. |
| 618 | if (!context()->IsTest() || !info_->IsOptimizable()) return; |
| 619 | |
| 620 | NearLabel skip; |
| 621 | if (should_normalize) __ jmp(&skip); |
| 622 | |
| 623 | ForwardBailoutStack* current = forward_bailout_stack_; |
| 624 | while (current != NULL) { |
| 625 | PrepareForBailout(current->expr(), state); |
| 626 | current = current->parent(); |
| 627 | } |
| 628 | |
| 629 | if (should_normalize) { |
| 630 | __ cmp(eax, Factory::true_value()); |
| 631 | Split(equal, if_true, if_false, NULL); |
| 632 | __ bind(&skip); |
| 633 | } |
| 634 | } |
| 635 | |
| 636 | |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 637 | void FullCodeGenerator::EmitDeclaration(Variable* variable, |
| 638 | Variable::Mode mode, |
| 639 | FunctionLiteral* function) { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 640 | Comment cmnt(masm_, "[ Declaration"); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 641 | ASSERT(variable != NULL); // Must have been resolved. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 642 | Slot* slot = variable->AsSlot(); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 643 | Property* prop = variable->AsProperty(); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 644 | if (slot != NULL) { |
| 645 | switch (slot->type()) { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 646 | case Slot::PARAMETER: |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 647 | case Slot::LOCAL: |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 648 | if (mode == Variable::CONST) { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 649 | __ mov(Operand(ebp, SlotOffset(slot)), |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 650 | Immediate(Factory::the_hole_value())); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 651 | } else if (function != NULL) { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 652 | VisitForAccumulatorValue(function); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 653 | __ mov(Operand(ebp, SlotOffset(slot)), result_register()); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 654 | } |
| 655 | break; |
| 656 | |
| 657 | case Slot::CONTEXT: |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 658 | // We bypass the general EmitSlotSearch because we know more about |
| 659 | // this specific context. |
| 660 | |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 661 | // The variable in the decl always resides in the current context. |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 662 | ASSERT_EQ(0, scope()->ContextChainLength(variable->scope())); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 663 | if (FLAG_debug_code) { |
| 664 | // Check if we have the correct context pointer. |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 665 | __ mov(ebx, ContextOperand(esi, Context::FCONTEXT_INDEX)); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 666 | __ cmp(ebx, Operand(esi)); |
| 667 | __ Check(equal, "Unexpected declaration in current context."); |
| 668 | } |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 669 | if (mode == Variable::CONST) { |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 670 | __ mov(ContextOperand(esi, slot->index()), |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 671 | Immediate(Factory::the_hole_value())); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 672 | // No write barrier since the hole value is in old space. |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 673 | } else if (function != NULL) { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 674 | VisitForAccumulatorValue(function); |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 675 | __ mov(ContextOperand(esi, slot->index()), result_register()); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 676 | int offset = Context::SlotOffset(slot->index()); |
Leon Clarke | 4515c47 | 2010-02-03 11:58:03 +0000 | [diff] [blame] | 677 | __ mov(ebx, esi); |
| 678 | __ RecordWrite(ebx, offset, result_register(), ecx); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 679 | } |
| 680 | break; |
| 681 | |
| 682 | case Slot::LOOKUP: { |
| 683 | __ push(esi); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 684 | __ push(Immediate(variable->name())); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 685 | // Declaration nodes are always introduced in one of two modes. |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 686 | ASSERT(mode == Variable::VAR || mode == Variable::CONST); |
| 687 | PropertyAttributes attr = (mode == Variable::VAR) ? NONE : READ_ONLY; |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 688 | __ push(Immediate(Smi::FromInt(attr))); |
| 689 | // Push initial value, if any. |
| 690 | // Note: For variables we must not push an initial value (such as |
| 691 | // 'undefined') because we may have a (legal) redeclaration and we |
| 692 | // must not destroy the current value. |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 693 | if (mode == Variable::CONST) { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 694 | __ push(Immediate(Factory::the_hole_value())); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 695 | } else if (function != NULL) { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 696 | VisitForStackValue(function); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 697 | } else { |
| 698 | __ push(Immediate(Smi::FromInt(0))); // No initial value! |
| 699 | } |
| 700 | __ CallRuntime(Runtime::kDeclareContextSlot, 4); |
| 701 | break; |
| 702 | } |
| 703 | } |
| 704 | |
| 705 | } else if (prop != NULL) { |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 706 | if (function != NULL || mode == Variable::CONST) { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 707 | // We are declaring a function or constant that rewrites to a |
| 708 | // property. Use (keyed) IC to set the initial value. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 709 | VisitForStackValue(prop->obj()); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 710 | if (function != NULL) { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 711 | VisitForStackValue(prop->key()); |
| 712 | VisitForAccumulatorValue(function); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 713 | __ pop(ecx); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 714 | } else { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 715 | VisitForAccumulatorValue(prop->key()); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 716 | __ mov(ecx, result_register()); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 717 | __ mov(result_register(), Factory::the_hole_value()); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 718 | } |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 719 | __ pop(edx); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 720 | |
| 721 | Handle<Code> ic(Builtins::builtin(Builtins::KeyedStoreIC_Initialize)); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 722 | EmitCallIC(ic, RelocInfo::CODE_TARGET); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 723 | } |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 724 | } |
| 725 | } |
| 726 | |
| 727 | |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 728 | void FullCodeGenerator::VisitDeclaration(Declaration* decl) { |
| 729 | EmitDeclaration(decl->proxy()->var(), decl->mode(), decl->fun()); |
| 730 | } |
| 731 | |
| 732 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 733 | void FullCodeGenerator::DeclareGlobals(Handle<FixedArray> pairs) { |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 734 | // Call the runtime to declare the globals. |
| 735 | __ push(esi); // The context is the first argument. |
| 736 | __ push(Immediate(pairs)); |
Andrei Popescu | 3100271 | 2010-02-23 13:46:05 +0000 | [diff] [blame] | 737 | __ push(Immediate(Smi::FromInt(is_eval() ? 1 : 0))); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 738 | __ CallRuntime(Runtime::kDeclareGlobals, 3); |
| 739 | // Return value is ignored. |
| 740 | } |
| 741 | |
| 742 | |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 743 | void FullCodeGenerator::VisitSwitchStatement(SwitchStatement* stmt) { |
| 744 | Comment cmnt(masm_, "[ SwitchStatement"); |
| 745 | Breakable nested_statement(this, stmt); |
| 746 | SetStatementPosition(stmt); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 747 | |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 748 | // Keep the switch value on the stack until a case matches. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 749 | VisitForStackValue(stmt->tag()); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 750 | PrepareForBailoutForId(stmt->EntryId(), NO_REGISTERS); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 751 | |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 752 | ZoneList<CaseClause*>* clauses = stmt->cases(); |
| 753 | CaseClause* default_clause = NULL; // Can occur anywhere in the list. |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 754 | |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 755 | Label next_test; // Recycled for each test. |
| 756 | // Compile all the tests with branches to their bodies. |
| 757 | for (int i = 0; i < clauses->length(); i++) { |
| 758 | CaseClause* clause = clauses->at(i); |
| 759 | // The default is not a test, but remember it as final fall through. |
| 760 | if (clause->is_default()) { |
| 761 | default_clause = clause; |
| 762 | continue; |
| 763 | } |
| 764 | |
| 765 | Comment cmnt(masm_, "[ Case comparison"); |
| 766 | __ bind(&next_test); |
| 767 | next_test.Unuse(); |
| 768 | |
| 769 | // Compile the label expression. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 770 | VisitForAccumulatorValue(clause->label()); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 771 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 772 | // Perform the comparison as if via '==='. |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 773 | __ mov(edx, Operand(esp, 0)); // Switch value. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 774 | bool inline_smi_code = ShouldInlineSmiCase(Token::EQ_STRICT); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 775 | JumpPatchSite patch_site(masm_); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 776 | if (inline_smi_code) { |
| 777 | NearLabel slow_case; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 778 | __ mov(ecx, edx); |
| 779 | __ or_(ecx, Operand(eax)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 780 | patch_site.EmitJumpIfNotSmi(ecx, &slow_case); |
| 781 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 782 | __ cmp(edx, Operand(eax)); |
| 783 | __ j(not_equal, &next_test); |
| 784 | __ Drop(1); // Switch value is no longer needed. |
| 785 | __ jmp(clause->body_target()->entry_label()); |
| 786 | __ bind(&slow_case); |
| 787 | } |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 788 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 789 | // Record position before stub call for type feedback. |
| 790 | SetSourcePosition(clause->position()); |
| 791 | Handle<Code> ic = CompareIC::GetUninitialized(Token::EQ_STRICT); |
| 792 | EmitCallIC(ic, &patch_site); |
| 793 | |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 794 | __ test(eax, Operand(eax)); |
| 795 | __ j(not_equal, &next_test); |
| 796 | __ Drop(1); // Switch value is no longer needed. |
| 797 | __ jmp(clause->body_target()->entry_label()); |
| 798 | } |
| 799 | |
| 800 | // Discard the test value and jump to the default if present, otherwise to |
| 801 | // the end of the statement. |
| 802 | __ bind(&next_test); |
| 803 | __ Drop(1); // Switch value is no longer needed. |
| 804 | if (default_clause == NULL) { |
| 805 | __ jmp(nested_statement.break_target()); |
| 806 | } else { |
| 807 | __ jmp(default_clause->body_target()->entry_label()); |
| 808 | } |
| 809 | |
| 810 | // Compile all the case bodies. |
| 811 | for (int i = 0; i < clauses->length(); i++) { |
| 812 | Comment cmnt(masm_, "[ Case body"); |
| 813 | CaseClause* clause = clauses->at(i); |
| 814 | __ bind(clause->body_target()->entry_label()); |
| 815 | VisitStatements(clause->statements()); |
| 816 | } |
| 817 | |
| 818 | __ bind(nested_statement.break_target()); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 819 | PrepareForBailoutForId(stmt->ExitId(), NO_REGISTERS); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 820 | } |
| 821 | |
| 822 | |
| 823 | void FullCodeGenerator::VisitForInStatement(ForInStatement* stmt) { |
| 824 | Comment cmnt(masm_, "[ ForInStatement"); |
| 825 | SetStatementPosition(stmt); |
| 826 | |
| 827 | Label loop, exit; |
| 828 | ForIn loop_statement(this, stmt); |
| 829 | increment_loop_depth(); |
| 830 | |
| 831 | // Get the object to enumerate over. Both SpiderMonkey and JSC |
| 832 | // ignore null and undefined in contrast to the specification; see |
| 833 | // ECMA-262 section 12.6.4. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 834 | VisitForAccumulatorValue(stmt->enumerable()); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 835 | __ cmp(eax, Factory::undefined_value()); |
| 836 | __ j(equal, &exit); |
| 837 | __ cmp(eax, Factory::null_value()); |
| 838 | __ j(equal, &exit); |
| 839 | |
| 840 | // Convert the object to a JS object. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 841 | NearLabel convert, done_convert; |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 842 | __ test(eax, Immediate(kSmiTagMask)); |
| 843 | __ j(zero, &convert); |
| 844 | __ CmpObjectType(eax, FIRST_JS_OBJECT_TYPE, ecx); |
| 845 | __ j(above_equal, &done_convert); |
| 846 | __ bind(&convert); |
| 847 | __ push(eax); |
| 848 | __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION); |
| 849 | __ bind(&done_convert); |
| 850 | __ push(eax); |
| 851 | |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 852 | // Check cache validity in generated code. This is a fast case for |
| 853 | // the JSObject::IsSimpleEnum cache validity checks. If we cannot |
| 854 | // guarantee cache validity, call the runtime system to check cache |
| 855 | // validity or get the property names in a fixed array. |
| 856 | Label next, call_runtime; |
| 857 | __ mov(ecx, eax); |
| 858 | __ bind(&next); |
| 859 | |
| 860 | // Check that there are no elements. Register ecx contains the |
| 861 | // current JS object we've reached through the prototype chain. |
| 862 | __ cmp(FieldOperand(ecx, JSObject::kElementsOffset), |
| 863 | Factory::empty_fixed_array()); |
| 864 | __ j(not_equal, &call_runtime); |
| 865 | |
| 866 | // Check that instance descriptors are not empty so that we can |
| 867 | // check for an enum cache. Leave the map in ebx for the subsequent |
| 868 | // prototype load. |
| 869 | __ mov(ebx, FieldOperand(ecx, HeapObject::kMapOffset)); |
| 870 | __ mov(edx, FieldOperand(ebx, Map::kInstanceDescriptorsOffset)); |
| 871 | __ cmp(edx, Factory::empty_descriptor_array()); |
| 872 | __ j(equal, &call_runtime); |
| 873 | |
| 874 | // Check that there in an enum cache in the non-empty instance |
| 875 | // descriptors (edx). This is the case if the next enumeration |
| 876 | // index field does not contain a smi. |
| 877 | __ mov(edx, FieldOperand(edx, DescriptorArray::kEnumerationIndexOffset)); |
| 878 | __ test(edx, Immediate(kSmiTagMask)); |
| 879 | __ j(zero, &call_runtime); |
| 880 | |
| 881 | // For all objects but the receiver, check that the cache is empty. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 882 | NearLabel check_prototype; |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 883 | __ cmp(ecx, Operand(eax)); |
| 884 | __ j(equal, &check_prototype); |
| 885 | __ mov(edx, FieldOperand(edx, DescriptorArray::kEnumCacheBridgeCacheOffset)); |
| 886 | __ cmp(edx, Factory::empty_fixed_array()); |
| 887 | __ j(not_equal, &call_runtime); |
| 888 | |
| 889 | // Load the prototype from the map and loop if non-null. |
| 890 | __ bind(&check_prototype); |
| 891 | __ mov(ecx, FieldOperand(ebx, Map::kPrototypeOffset)); |
| 892 | __ cmp(ecx, Factory::null_value()); |
| 893 | __ j(not_equal, &next); |
| 894 | |
| 895 | // The enum cache is valid. Load the map of the object being |
| 896 | // iterated over and use the cache for the iteration. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 897 | NearLabel use_cache; |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 898 | __ mov(eax, FieldOperand(eax, HeapObject::kMapOffset)); |
| 899 | __ jmp(&use_cache); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 900 | |
| 901 | // Get the set of properties to enumerate. |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 902 | __ bind(&call_runtime); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 903 | __ push(eax); // Duplicate the enumerable object on the stack. |
| 904 | __ CallRuntime(Runtime::kGetPropertyNamesFast, 1); |
| 905 | |
| 906 | // If we got a map from the runtime call, we can do a fast |
| 907 | // modification check. Otherwise, we got a fixed array, and we have |
| 908 | // to do a slow check. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 909 | NearLabel fixed_array; |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 910 | __ cmp(FieldOperand(eax, HeapObject::kMapOffset), Factory::meta_map()); |
| 911 | __ j(not_equal, &fixed_array); |
| 912 | |
| 913 | // We got a map in register eax. Get the enumeration cache from it. |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 914 | __ bind(&use_cache); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 915 | __ mov(ecx, FieldOperand(eax, Map::kInstanceDescriptorsOffset)); |
| 916 | __ mov(ecx, FieldOperand(ecx, DescriptorArray::kEnumerationIndexOffset)); |
| 917 | __ mov(edx, FieldOperand(ecx, DescriptorArray::kEnumCacheBridgeCacheOffset)); |
| 918 | |
| 919 | // Setup the four remaining stack slots. |
| 920 | __ push(eax); // Map. |
| 921 | __ push(edx); // Enumeration cache. |
| 922 | __ mov(eax, FieldOperand(edx, FixedArray::kLengthOffset)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 923 | __ push(eax); // Enumeration cache length (as smi). |
| 924 | __ push(Immediate(Smi::FromInt(0))); // Initial index. |
| 925 | __ jmp(&loop); |
| 926 | |
| 927 | // We got a fixed array in register eax. Iterate through that. |
| 928 | __ bind(&fixed_array); |
| 929 | __ push(Immediate(Smi::FromInt(0))); // Map (0) - force slow check. |
| 930 | __ push(eax); |
| 931 | __ mov(eax, FieldOperand(eax, FixedArray::kLengthOffset)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 932 | __ push(eax); // Fixed array length (as smi). |
| 933 | __ push(Immediate(Smi::FromInt(0))); // Initial index. |
| 934 | |
| 935 | // Generate code for doing the condition check. |
| 936 | __ bind(&loop); |
| 937 | __ mov(eax, Operand(esp, 0 * kPointerSize)); // Get the current index. |
| 938 | __ cmp(eax, Operand(esp, 1 * kPointerSize)); // Compare to the array length. |
| 939 | __ j(above_equal, loop_statement.break_target()); |
| 940 | |
| 941 | // Get the current entry of the array into register ebx. |
| 942 | __ mov(ebx, Operand(esp, 2 * kPointerSize)); |
| 943 | __ mov(ebx, FieldOperand(ebx, eax, times_2, FixedArray::kHeaderSize)); |
| 944 | |
| 945 | // Get the expected map from the stack or a zero map in the |
| 946 | // permanent slow case into register edx. |
| 947 | __ mov(edx, Operand(esp, 3 * kPointerSize)); |
| 948 | |
| 949 | // Check if the expected map still matches that of the enumerable. |
| 950 | // If not, we have to filter the key. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 951 | NearLabel update_each; |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 952 | __ mov(ecx, Operand(esp, 4 * kPointerSize)); |
| 953 | __ cmp(edx, FieldOperand(ecx, HeapObject::kMapOffset)); |
| 954 | __ j(equal, &update_each); |
| 955 | |
| 956 | // Convert the entry to a string or null if it isn't a property |
| 957 | // anymore. If the property has been removed while iterating, we |
| 958 | // just skip it. |
| 959 | __ push(ecx); // Enumerable. |
| 960 | __ push(ebx); // Current entry. |
| 961 | __ InvokeBuiltin(Builtins::FILTER_KEY, CALL_FUNCTION); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 962 | __ test(eax, Operand(eax)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 963 | __ j(equal, loop_statement.continue_target()); |
| 964 | __ mov(ebx, Operand(eax)); |
| 965 | |
| 966 | // Update the 'each' property or variable from the possibly filtered |
| 967 | // entry in register ebx. |
| 968 | __ bind(&update_each); |
| 969 | __ mov(result_register(), ebx); |
| 970 | // Perform the assignment as if via '='. |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 971 | { EffectContext context(this); |
| 972 | EmitAssignment(stmt->each(), stmt->AssignmentId()); |
| 973 | } |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 974 | |
| 975 | // Generate code for the body of the loop. |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 976 | Visit(stmt->body()); |
| 977 | |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 978 | // Generate code for going to the next element by incrementing the |
| 979 | // index (smi) stored on top of the stack. |
| 980 | __ bind(loop_statement.continue_target()); |
| 981 | __ add(Operand(esp, 0 * kPointerSize), Immediate(Smi::FromInt(1))); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 982 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 983 | EmitStackCheck(stmt); |
| 984 | __ jmp(&loop); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 985 | |
| 986 | // Remove the pointers stored on the stack. |
| 987 | __ bind(loop_statement.break_target()); |
| 988 | __ add(Operand(esp), Immediate(5 * kPointerSize)); |
| 989 | |
| 990 | // Exit and decrement the loop depth. |
| 991 | __ bind(&exit); |
| 992 | decrement_loop_depth(); |
| 993 | } |
| 994 | |
| 995 | |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 996 | void FullCodeGenerator::EmitNewClosure(Handle<SharedFunctionInfo> info, |
| 997 | bool pretenure) { |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 998 | // Use the fast case closure allocation code that allocates in new |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 999 | // space for nested functions that don't need literals cloning. If |
| 1000 | // we're running with the --always-opt or the --prepare-always-opt |
| 1001 | // flag, we need to use the runtime function so that the new function |
| 1002 | // we are creating here gets a chance to have its code optimized and |
| 1003 | // doesn't just get a copy of the existing unoptimized code. |
| 1004 | if (!FLAG_always_opt && |
| 1005 | !FLAG_prepare_always_opt && |
| 1006 | scope()->is_function_scope() && |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 1007 | info->num_literals() == 0 && |
| 1008 | !pretenure) { |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 1009 | FastNewClosureStub stub; |
| 1010 | __ push(Immediate(info)); |
| 1011 | __ CallStub(&stub); |
| 1012 | } else { |
| 1013 | __ push(esi); |
| 1014 | __ push(Immediate(info)); |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 1015 | __ push(Immediate(pretenure |
| 1016 | ? Factory::true_value() |
| 1017 | : Factory::false_value())); |
| 1018 | __ CallRuntime(Runtime::kNewClosure, 3); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 1019 | } |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1020 | context()->Plug(eax); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1021 | } |
| 1022 | |
| 1023 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 1024 | void FullCodeGenerator::VisitVariableProxy(VariableProxy* expr) { |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1025 | Comment cmnt(masm_, "[ VariableProxy"); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1026 | EmitVariableLoad(expr->var()); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1027 | } |
| 1028 | |
| 1029 | |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 1030 | void FullCodeGenerator::EmitLoadGlobalSlotCheckExtensions( |
| 1031 | Slot* slot, |
| 1032 | TypeofState typeof_state, |
| 1033 | Label* slow) { |
| 1034 | Register context = esi; |
| 1035 | Register temp = edx; |
| 1036 | |
| 1037 | Scope* s = scope(); |
| 1038 | while (s != NULL) { |
| 1039 | if (s->num_heap_slots() > 0) { |
| 1040 | if (s->calls_eval()) { |
| 1041 | // Check that extension is NULL. |
| 1042 | __ cmp(ContextOperand(context, Context::EXTENSION_INDEX), |
| 1043 | Immediate(0)); |
| 1044 | __ j(not_equal, slow); |
| 1045 | } |
| 1046 | // Load next context in chain. |
| 1047 | __ mov(temp, ContextOperand(context, Context::CLOSURE_INDEX)); |
| 1048 | __ mov(temp, FieldOperand(temp, JSFunction::kContextOffset)); |
| 1049 | // Walk the rest of the chain without clobbering esi. |
| 1050 | context = temp; |
| 1051 | } |
| 1052 | // If no outer scope calls eval, we do not need to check more |
| 1053 | // context extensions. If we have reached an eval scope, we check |
| 1054 | // all extensions from this point. |
| 1055 | if (!s->outer_scope_calls_eval() || s->is_eval_scope()) break; |
| 1056 | s = s->outer_scope(); |
| 1057 | } |
| 1058 | |
| 1059 | if (s != NULL && s->is_eval_scope()) { |
| 1060 | // Loop up the context chain. There is no frame effect so it is |
| 1061 | // safe to use raw labels here. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1062 | NearLabel next, fast; |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 1063 | if (!context.is(temp)) { |
| 1064 | __ mov(temp, context); |
| 1065 | } |
| 1066 | __ bind(&next); |
| 1067 | // Terminate at global context. |
| 1068 | __ cmp(FieldOperand(temp, HeapObject::kMapOffset), |
| 1069 | Immediate(Factory::global_context_map())); |
| 1070 | __ j(equal, &fast); |
| 1071 | // Check that extension is NULL. |
| 1072 | __ cmp(ContextOperand(temp, Context::EXTENSION_INDEX), Immediate(0)); |
| 1073 | __ j(not_equal, slow); |
| 1074 | // Load next context in chain. |
| 1075 | __ mov(temp, ContextOperand(temp, Context::CLOSURE_INDEX)); |
| 1076 | __ mov(temp, FieldOperand(temp, JSFunction::kContextOffset)); |
| 1077 | __ jmp(&next); |
| 1078 | __ bind(&fast); |
| 1079 | } |
| 1080 | |
| 1081 | // All extension objects were empty and it is safe to use a global |
| 1082 | // load IC call. |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 1083 | __ mov(eax, GlobalObjectOperand()); |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 1084 | __ mov(ecx, slot->var()->name()); |
| 1085 | Handle<Code> ic(Builtins::builtin(Builtins::LoadIC_Initialize)); |
| 1086 | RelocInfo::Mode mode = (typeof_state == INSIDE_TYPEOF) |
| 1087 | ? RelocInfo::CODE_TARGET |
| 1088 | : RelocInfo::CODE_TARGET_CONTEXT; |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1089 | EmitCallIC(ic, mode); |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 1090 | } |
| 1091 | |
| 1092 | |
| 1093 | MemOperand FullCodeGenerator::ContextSlotOperandCheckExtensions( |
| 1094 | Slot* slot, |
| 1095 | Label* slow) { |
| 1096 | ASSERT(slot->type() == Slot::CONTEXT); |
| 1097 | Register context = esi; |
| 1098 | Register temp = ebx; |
| 1099 | |
| 1100 | for (Scope* s = scope(); s != slot->var()->scope(); s = s->outer_scope()) { |
| 1101 | if (s->num_heap_slots() > 0) { |
| 1102 | if (s->calls_eval()) { |
| 1103 | // Check that extension is NULL. |
| 1104 | __ cmp(ContextOperand(context, Context::EXTENSION_INDEX), |
| 1105 | Immediate(0)); |
| 1106 | __ j(not_equal, slow); |
| 1107 | } |
| 1108 | __ mov(temp, ContextOperand(context, Context::CLOSURE_INDEX)); |
| 1109 | __ mov(temp, FieldOperand(temp, JSFunction::kContextOffset)); |
| 1110 | // Walk the rest of the chain without clobbering esi. |
| 1111 | context = temp; |
| 1112 | } |
| 1113 | } |
| 1114 | // Check that last extension is NULL. |
| 1115 | __ cmp(ContextOperand(context, Context::EXTENSION_INDEX), Immediate(0)); |
| 1116 | __ j(not_equal, slow); |
| 1117 | __ mov(temp, ContextOperand(context, Context::FCONTEXT_INDEX)); |
| 1118 | return ContextOperand(temp, slot->index()); |
| 1119 | } |
| 1120 | |
| 1121 | |
| 1122 | void FullCodeGenerator::EmitDynamicLoadFromSlotFastCase( |
| 1123 | Slot* slot, |
| 1124 | TypeofState typeof_state, |
| 1125 | Label* slow, |
| 1126 | Label* done) { |
| 1127 | // Generate fast-case code for variables that might be shadowed by |
| 1128 | // eval-introduced variables. Eval is used a lot without |
| 1129 | // introducing variables. In those cases, we do not want to |
| 1130 | // perform a runtime call for all variables in the scope |
| 1131 | // containing the eval. |
| 1132 | if (slot->var()->mode() == Variable::DYNAMIC_GLOBAL) { |
| 1133 | EmitLoadGlobalSlotCheckExtensions(slot, typeof_state, slow); |
| 1134 | __ jmp(done); |
| 1135 | } else if (slot->var()->mode() == Variable::DYNAMIC_LOCAL) { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1136 | Slot* potential_slot = slot->var()->local_if_not_shadowed()->AsSlot(); |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 1137 | Expression* rewrite = slot->var()->local_if_not_shadowed()->rewrite(); |
| 1138 | if (potential_slot != NULL) { |
| 1139 | // Generate fast case for locals that rewrite to slots. |
| 1140 | __ mov(eax, |
| 1141 | ContextSlotOperandCheckExtensions(potential_slot, slow)); |
| 1142 | if (potential_slot->var()->mode() == Variable::CONST) { |
| 1143 | __ cmp(eax, Factory::the_hole_value()); |
| 1144 | __ j(not_equal, done); |
| 1145 | __ mov(eax, Factory::undefined_value()); |
| 1146 | } |
| 1147 | __ jmp(done); |
| 1148 | } else if (rewrite != NULL) { |
| 1149 | // Generate fast case for calls of an argument function. |
| 1150 | Property* property = rewrite->AsProperty(); |
| 1151 | if (property != NULL) { |
| 1152 | VariableProxy* obj_proxy = property->obj()->AsVariableProxy(); |
| 1153 | Literal* key_literal = property->key()->AsLiteral(); |
| 1154 | if (obj_proxy != NULL && |
| 1155 | key_literal != NULL && |
| 1156 | obj_proxy->IsArguments() && |
| 1157 | key_literal->handle()->IsSmi()) { |
| 1158 | // Load arguments object if there are no eval-introduced |
| 1159 | // variables. Then load the argument from the arguments |
| 1160 | // object using keyed load. |
| 1161 | __ mov(edx, |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1162 | ContextSlotOperandCheckExtensions(obj_proxy->var()->AsSlot(), |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 1163 | slow)); |
| 1164 | __ mov(eax, Immediate(key_literal->handle())); |
| 1165 | Handle<Code> ic(Builtins::builtin(Builtins::KeyedLoadIC_Initialize)); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1166 | EmitCallIC(ic, RelocInfo::CODE_TARGET); |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 1167 | __ jmp(done); |
| 1168 | } |
| 1169 | } |
| 1170 | } |
| 1171 | } |
| 1172 | } |
| 1173 | |
| 1174 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1175 | void FullCodeGenerator::EmitVariableLoad(Variable* var) { |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 1176 | // Four cases: non-this global variables, lookup slots, all other |
| 1177 | // types of slots, and parameters that rewrite to explicit property |
| 1178 | // accesses on the arguments object. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1179 | Slot* slot = var->AsSlot(); |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 1180 | Property* property = var->AsProperty(); |
| 1181 | |
| 1182 | if (var->is_global() && !var->is_this()) { |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1183 | Comment cmnt(masm_, "Global variable"); |
| 1184 | // Use inline caching. Variable name is passed in ecx and the global |
| 1185 | // object on the stack. |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 1186 | __ mov(eax, GlobalObjectOperand()); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1187 | __ mov(ecx, var->name()); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1188 | Handle<Code> ic(Builtins::builtin(Builtins::LoadIC_Initialize)); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1189 | EmitCallIC(ic, RelocInfo::CODE_TARGET_CONTEXT); |
| 1190 | context()->Plug(eax); |
Leon Clarke | eab96aa | 2010-01-27 16:31:12 +0000 | [diff] [blame] | 1191 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 1192 | } else if (slot != NULL && slot->type() == Slot::LOOKUP) { |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 1193 | Label done, slow; |
| 1194 | |
| 1195 | // Generate code for loading from variables potentially shadowed |
| 1196 | // by eval-introduced variables. |
| 1197 | EmitDynamicLoadFromSlotFastCase(slot, NOT_INSIDE_TYPEOF, &slow, &done); |
| 1198 | |
| 1199 | __ bind(&slow); |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 1200 | Comment cmnt(masm_, "Lookup slot"); |
| 1201 | __ push(esi); // Context. |
| 1202 | __ push(Immediate(var->name())); |
| 1203 | __ CallRuntime(Runtime::kLoadContextSlot, 2); |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 1204 | __ bind(&done); |
| 1205 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1206 | context()->Plug(eax); |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 1207 | |
| 1208 | } else if (slot != NULL) { |
| 1209 | Comment cmnt(masm_, (slot->type() == Slot::CONTEXT) |
| 1210 | ? "Context slot" |
| 1211 | : "Stack slot"); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 1212 | if (var->mode() == Variable::CONST) { |
| 1213 | // Constants may be the hole value if they have not been initialized. |
| 1214 | // Unhole them. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1215 | NearLabel done; |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 1216 | MemOperand slot_operand = EmitSlotSearch(slot, eax); |
| 1217 | __ mov(eax, slot_operand); |
| 1218 | __ cmp(eax, Factory::the_hole_value()); |
| 1219 | __ j(not_equal, &done); |
| 1220 | __ mov(eax, Factory::undefined_value()); |
| 1221 | __ bind(&done); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1222 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 1223 | } else { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1224 | context()->Plug(slot); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 1225 | } |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 1226 | |
| 1227 | } else { |
| 1228 | Comment cmnt(masm_, "Rewritten parameter"); |
| 1229 | ASSERT_NOT_NULL(property); |
| 1230 | // Rewritten parameter accesses are of the form "slot[literal]". |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1231 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1232 | // Assert that the object is in a slot. |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1233 | Variable* object_var = property->obj()->AsVariableProxy()->AsVariable(); |
| 1234 | ASSERT_NOT_NULL(object_var); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1235 | Slot* object_slot = object_var->AsSlot(); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1236 | ASSERT_NOT_NULL(object_slot); |
| 1237 | |
| 1238 | // Load the object. |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1239 | MemOperand object_loc = EmitSlotSearch(object_slot, eax); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1240 | __ mov(edx, object_loc); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1241 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1242 | // Assert that the key is a smi. |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1243 | Literal* key_literal = property->key()->AsLiteral(); |
| 1244 | ASSERT_NOT_NULL(key_literal); |
| 1245 | ASSERT(key_literal->handle()->IsSmi()); |
| 1246 | |
| 1247 | // Load the key. |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1248 | __ mov(eax, Immediate(key_literal->handle())); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1249 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1250 | // Do a keyed property load. |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1251 | Handle<Code> ic(Builtins::builtin(Builtins::KeyedLoadIC_Initialize)); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1252 | EmitCallIC(ic, RelocInfo::CODE_TARGET); |
| 1253 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1254 | // Drop key and object left on the stack by IC. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1255 | context()->Plug(eax); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1256 | } |
| 1257 | } |
| 1258 | |
| 1259 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 1260 | void FullCodeGenerator::VisitRegExpLiteral(RegExpLiteral* expr) { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1261 | Comment cmnt(masm_, "[ RegExpLiteral"); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1262 | NearLabel materialized; |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1263 | // Registers will be used as follows: |
| 1264 | // edi = JS function. |
Ben Murdoch | bb769b2 | 2010-08-11 14:56:33 +0100 | [diff] [blame] | 1265 | // ecx = literals array. |
| 1266 | // ebx = regexp literal. |
| 1267 | // eax = regexp literal clone. |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1268 | __ mov(edi, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); |
Ben Murdoch | bb769b2 | 2010-08-11 14:56:33 +0100 | [diff] [blame] | 1269 | __ mov(ecx, FieldOperand(edi, JSFunction::kLiteralsOffset)); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1270 | int literal_offset = |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1271 | FixedArray::kHeaderSize + expr->literal_index() * kPointerSize; |
Ben Murdoch | bb769b2 | 2010-08-11 14:56:33 +0100 | [diff] [blame] | 1272 | __ mov(ebx, FieldOperand(ecx, literal_offset)); |
| 1273 | __ cmp(ebx, Factory::undefined_value()); |
| 1274 | __ j(not_equal, &materialized); |
| 1275 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1276 | // Create regexp literal using runtime function |
| 1277 | // Result will be in eax. |
Ben Murdoch | bb769b2 | 2010-08-11 14:56:33 +0100 | [diff] [blame] | 1278 | __ push(ecx); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1279 | __ push(Immediate(Smi::FromInt(expr->literal_index()))); |
| 1280 | __ push(Immediate(expr->pattern())); |
| 1281 | __ push(Immediate(expr->flags())); |
| 1282 | __ CallRuntime(Runtime::kMaterializeRegExpLiteral, 4); |
Ben Murdoch | bb769b2 | 2010-08-11 14:56:33 +0100 | [diff] [blame] | 1283 | __ mov(ebx, eax); |
| 1284 | |
| 1285 | __ bind(&materialized); |
| 1286 | int size = JSRegExp::kSize + JSRegExp::kInObjectFieldCount * kPointerSize; |
| 1287 | Label allocated, runtime_allocate; |
| 1288 | __ AllocateInNewSpace(size, eax, ecx, edx, &runtime_allocate, TAG_OBJECT); |
| 1289 | __ jmp(&allocated); |
| 1290 | |
| 1291 | __ bind(&runtime_allocate); |
| 1292 | __ push(ebx); |
| 1293 | __ push(Immediate(Smi::FromInt(size))); |
| 1294 | __ CallRuntime(Runtime::kAllocateInNewSpace, 1); |
| 1295 | __ pop(ebx); |
| 1296 | |
| 1297 | __ bind(&allocated); |
| 1298 | // Copy the content into the newly allocated memory. |
| 1299 | // (Unroll copy loop once for better throughput). |
| 1300 | for (int i = 0; i < size - kPointerSize; i += 2 * kPointerSize) { |
| 1301 | __ mov(edx, FieldOperand(ebx, i)); |
| 1302 | __ mov(ecx, FieldOperand(ebx, i + kPointerSize)); |
| 1303 | __ mov(FieldOperand(eax, i), edx); |
| 1304 | __ mov(FieldOperand(eax, i + kPointerSize), ecx); |
| 1305 | } |
| 1306 | if ((size % (2 * kPointerSize)) != 0) { |
| 1307 | __ mov(edx, FieldOperand(ebx, size - kPointerSize)); |
| 1308 | __ mov(FieldOperand(eax, size - kPointerSize), edx); |
| 1309 | } |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1310 | context()->Plug(eax); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1311 | } |
| 1312 | |
| 1313 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 1314 | void FullCodeGenerator::VisitObjectLiteral(ObjectLiteral* expr) { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1315 | Comment cmnt(masm_, "[ ObjectLiteral"); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1316 | __ mov(edi, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1317 | __ push(FieldOperand(edi, JSFunction::kLiteralsOffset)); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1318 | __ push(Immediate(Smi::FromInt(expr->literal_index()))); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1319 | __ push(Immediate(expr->constant_properties())); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1320 | __ push(Immediate(Smi::FromInt(expr->fast_elements() ? 1 : 0))); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1321 | if (expr->depth() > 1) { |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1322 | __ CallRuntime(Runtime::kCreateObjectLiteral, 4); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1323 | } else { |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1324 | __ CallRuntime(Runtime::kCreateObjectLiteralShallow, 4); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1325 | } |
| 1326 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1327 | // If result_saved is true the result is on top of the stack. If |
| 1328 | // result_saved is false the result is in eax. |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1329 | bool result_saved = false; |
| 1330 | |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 1331 | // Mark all computed expressions that are bound to a key that |
| 1332 | // is shadowed by a later occurrence of the same key. For the |
| 1333 | // marked expressions, no store code is emitted. |
| 1334 | expr->CalculateEmitStore(); |
| 1335 | |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1336 | for (int i = 0; i < expr->properties()->length(); i++) { |
| 1337 | ObjectLiteral::Property* property = expr->properties()->at(i); |
| 1338 | if (property->IsCompileTimeValue()) continue; |
| 1339 | |
| 1340 | Literal* key = property->key(); |
| 1341 | Expression* value = property->value(); |
| 1342 | if (!result_saved) { |
| 1343 | __ push(eax); // Save result on the stack |
| 1344 | result_saved = true; |
| 1345 | } |
| 1346 | switch (property->kind()) { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1347 | case ObjectLiteral::Property::MATERIALIZED_LITERAL: |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1348 | ASSERT(!CompileTimeValue::IsCompileTimeValue(value)); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1349 | // Fall through. |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1350 | case ObjectLiteral::Property::COMPUTED: |
| 1351 | if (key->handle()->IsSymbol()) { |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 1352 | if (property->emit_store()) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1353 | VisitForAccumulatorValue(value); |
| 1354 | __ mov(ecx, Immediate(key->handle())); |
| 1355 | __ mov(edx, Operand(esp, 0)); |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 1356 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Initialize)); |
| 1357 | EmitCallIC(ic, RelocInfo::CODE_TARGET); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1358 | PrepareForBailoutForId(key->id(), NO_REGISTERS); |
| 1359 | } else { |
| 1360 | VisitForEffect(value); |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 1361 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1362 | break; |
| 1363 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1364 | // Fall through. |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1365 | case ObjectLiteral::Property::PROTOTYPE: |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1366 | __ push(Operand(esp, 0)); // Duplicate receiver. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1367 | VisitForStackValue(key); |
| 1368 | VisitForStackValue(value); |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 1369 | if (property->emit_store()) { |
| 1370 | __ CallRuntime(Runtime::kSetProperty, 3); |
| 1371 | } else { |
| 1372 | __ Drop(3); |
| 1373 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1374 | break; |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1375 | case ObjectLiteral::Property::SETTER: |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1376 | case ObjectLiteral::Property::GETTER: |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1377 | __ push(Operand(esp, 0)); // Duplicate receiver. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1378 | VisitForStackValue(key); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1379 | __ push(Immediate(property->kind() == ObjectLiteral::Property::SETTER ? |
| 1380 | Smi::FromInt(1) : |
| 1381 | Smi::FromInt(0))); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1382 | VisitForStackValue(value); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1383 | __ CallRuntime(Runtime::kDefineAccessor, 4); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1384 | break; |
| 1385 | default: UNREACHABLE(); |
| 1386 | } |
| 1387 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1388 | |
| 1389 | if (result_saved) { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1390 | context()->PlugTOS(); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1391 | } else { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1392 | context()->Plug(eax); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1393 | } |
| 1394 | } |
| 1395 | |
| 1396 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 1397 | void FullCodeGenerator::VisitArrayLiteral(ArrayLiteral* expr) { |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1398 | Comment cmnt(masm_, "[ ArrayLiteral"); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 1399 | |
| 1400 | ZoneList<Expression*>* subexprs = expr->values(); |
| 1401 | int length = subexprs->length(); |
| 1402 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1403 | __ mov(ebx, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1404 | __ push(FieldOperand(ebx, JSFunction::kLiteralsOffset)); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1405 | __ push(Immediate(Smi::FromInt(expr->literal_index()))); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1406 | __ push(Immediate(expr->constant_elements())); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 1407 | if (expr->constant_elements()->map() == Heap::fixed_cow_array_map()) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1408 | ASSERT(expr->depth() == 1); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 1409 | FastCloneShallowArrayStub stub( |
| 1410 | FastCloneShallowArrayStub::COPY_ON_WRITE_ELEMENTS, length); |
| 1411 | __ CallStub(&stub); |
| 1412 | __ IncrementCounter(&Counters::cow_arrays_created_stub, 1); |
| 1413 | } else if (expr->depth() > 1) { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1414 | __ CallRuntime(Runtime::kCreateArrayLiteral, 3); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 1415 | } else if (length > FastCloneShallowArrayStub::kMaximumClonedLength) { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1416 | __ CallRuntime(Runtime::kCreateArrayLiteralShallow, 3); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 1417 | } else { |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 1418 | FastCloneShallowArrayStub stub( |
| 1419 | FastCloneShallowArrayStub::CLONE_ELEMENTS, length); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 1420 | __ CallStub(&stub); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1421 | } |
| 1422 | |
| 1423 | bool result_saved = false; // Is the result saved to the stack? |
| 1424 | |
| 1425 | // Emit code to evaluate all the non-constant subexpressions and to store |
| 1426 | // them into the newly cloned array. |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 1427 | for (int i = 0; i < length; i++) { |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1428 | Expression* subexpr = subexprs->at(i); |
| 1429 | // If the subexpression is a literal or a simple materialized literal it |
| 1430 | // is already set in the cloned array. |
| 1431 | if (subexpr->AsLiteral() != NULL || |
| 1432 | CompileTimeValue::IsCompileTimeValue(subexpr)) { |
| 1433 | continue; |
| 1434 | } |
| 1435 | |
| 1436 | if (!result_saved) { |
| 1437 | __ push(eax); |
| 1438 | result_saved = true; |
| 1439 | } |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1440 | VisitForAccumulatorValue(subexpr); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1441 | |
| 1442 | // Store the subexpression value in the array's elements. |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1443 | __ mov(ebx, Operand(esp, 0)); // Copy of array literal. |
| 1444 | __ mov(ebx, FieldOperand(ebx, JSObject::kElementsOffset)); |
| 1445 | int offset = FixedArray::kHeaderSize + (i * kPointerSize); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1446 | __ mov(FieldOperand(ebx, offset), result_register()); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1447 | |
| 1448 | // Update the write barrier for the array store. |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1449 | __ RecordWrite(ebx, offset, result_register(), ecx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1450 | |
| 1451 | PrepareForBailoutForId(expr->GetIdForElement(i), NO_REGISTERS); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1452 | } |
| 1453 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1454 | if (result_saved) { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1455 | context()->PlugTOS(); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1456 | } else { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1457 | context()->Plug(eax); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1458 | } |
| 1459 | } |
| 1460 | |
| 1461 | |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1462 | void FullCodeGenerator::VisitAssignment(Assignment* expr) { |
| 1463 | Comment cmnt(masm_, "[ Assignment"); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 1464 | // Invalid left-hand sides are rewritten to have a 'throw ReferenceError' |
| 1465 | // on the left-hand side. |
| 1466 | if (!expr->target()->IsValidLeftHandSide()) { |
| 1467 | VisitForEffect(expr->target()); |
| 1468 | return; |
| 1469 | } |
| 1470 | |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1471 | // Left-hand side can only be a property, a global or a (parameter or local) |
| 1472 | // slot. Variables with rewrite to .arguments are treated as KEYED_PROPERTY. |
| 1473 | enum LhsKind { VARIABLE, NAMED_PROPERTY, KEYED_PROPERTY }; |
| 1474 | LhsKind assign_type = VARIABLE; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1475 | Property* property = expr->target()->AsProperty(); |
| 1476 | if (property != NULL) { |
| 1477 | assign_type = (property->key()->IsPropertyName()) |
| 1478 | ? NAMED_PROPERTY |
| 1479 | : KEYED_PROPERTY; |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1480 | } |
| 1481 | |
| 1482 | // Evaluate LHS expression. |
| 1483 | switch (assign_type) { |
| 1484 | case VARIABLE: |
| 1485 | // Nothing to do here. |
| 1486 | break; |
| 1487 | case NAMED_PROPERTY: |
| 1488 | if (expr->is_compound()) { |
| 1489 | // We need the receiver both on the stack and in the accumulator. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1490 | VisitForAccumulatorValue(property->obj()); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1491 | __ push(result_register()); |
| 1492 | } else { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1493 | VisitForStackValue(property->obj()); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1494 | } |
| 1495 | break; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1496 | case KEYED_PROPERTY: { |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1497 | if (expr->is_compound()) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1498 | if (property->is_arguments_access()) { |
| 1499 | VariableProxy* obj_proxy = property->obj()->AsVariableProxy(); |
| 1500 | __ push(EmitSlotSearch(obj_proxy->var()->AsSlot(), ecx)); |
| 1501 | __ mov(eax, Immediate(property->key()->AsLiteral()->handle())); |
| 1502 | } else { |
| 1503 | VisitForStackValue(property->obj()); |
| 1504 | VisitForAccumulatorValue(property->key()); |
| 1505 | } |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1506 | __ mov(edx, Operand(esp, 0)); |
| 1507 | __ push(eax); |
| 1508 | } else { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1509 | if (property->is_arguments_access()) { |
| 1510 | VariableProxy* obj_proxy = property->obj()->AsVariableProxy(); |
| 1511 | __ push(EmitSlotSearch(obj_proxy->var()->AsSlot(), ecx)); |
| 1512 | __ push(Immediate(property->key()->AsLiteral()->handle())); |
| 1513 | } else { |
| 1514 | VisitForStackValue(property->obj()); |
| 1515 | VisitForStackValue(property->key()); |
| 1516 | } |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1517 | } |
| 1518 | break; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1519 | } |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1520 | } |
| 1521 | |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1522 | if (expr->is_compound()) { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1523 | { AccumulatorValueContext context(this); |
| 1524 | switch (assign_type) { |
| 1525 | case VARIABLE: |
| 1526 | EmitVariableLoad(expr->target()->AsVariableProxy()->var()); |
| 1527 | break; |
| 1528 | case NAMED_PROPERTY: |
| 1529 | EmitNamedPropertyLoad(property); |
| 1530 | break; |
| 1531 | case KEYED_PROPERTY: |
| 1532 | EmitKeyedPropertyLoad(property); |
| 1533 | break; |
| 1534 | } |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1535 | } |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1536 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1537 | // For property compound assignments we need another deoptimization |
| 1538 | // point after the property load. |
| 1539 | if (property != NULL) { |
| 1540 | PrepareForBailoutForId(expr->CompoundLoadId(), TOS_REG); |
| 1541 | } |
| 1542 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1543 | Token::Value op = expr->binary_op(); |
| 1544 | ConstantOperand constant = ShouldInlineSmiCase(op) |
| 1545 | ? GetConstantOperand(op, expr->target(), expr->value()) |
| 1546 | : kNoConstants; |
| 1547 | ASSERT(constant == kRightConstant || constant == kNoConstants); |
| 1548 | if (constant == kNoConstants) { |
| 1549 | __ push(eax); // Left operand goes on the stack. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1550 | VisitForAccumulatorValue(expr->value()); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1551 | } |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1552 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1553 | OverwriteMode mode = expr->value()->ResultOverwriteAllowed() |
| 1554 | ? OVERWRITE_RIGHT |
| 1555 | : NO_OVERWRITE; |
| 1556 | SetSourcePosition(expr->position() + 1); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1557 | AccumulatorValueContext context(this); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1558 | if (ShouldInlineSmiCase(op)) { |
| 1559 | EmitInlineSmiBinaryOp(expr, |
| 1560 | op, |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1561 | mode, |
| 1562 | expr->target(), |
| 1563 | expr->value(), |
| 1564 | constant); |
| 1565 | } else { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1566 | EmitBinaryOp(op, mode); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1567 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1568 | |
| 1569 | // Deoptimization point in case the binary operation may have side effects. |
| 1570 | PrepareForBailout(expr->binary_operation(), TOS_REG); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1571 | } else { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1572 | VisitForAccumulatorValue(expr->value()); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1573 | } |
| 1574 | |
| 1575 | // Record source position before possible IC call. |
| 1576 | SetSourcePosition(expr->position()); |
| 1577 | |
| 1578 | // Store the value. |
| 1579 | switch (assign_type) { |
| 1580 | case VARIABLE: |
| 1581 | EmitVariableAssignment(expr->target()->AsVariableProxy()->var(), |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1582 | expr->op()); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1583 | PrepareForBailoutForId(expr->AssignmentId(), TOS_REG); |
| 1584 | context()->Plug(eax); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 1585 | break; |
| 1586 | case NAMED_PROPERTY: |
| 1587 | EmitNamedPropertyAssignment(expr); |
| 1588 | break; |
| 1589 | case KEYED_PROPERTY: |
| 1590 | EmitKeyedPropertyAssignment(expr); |
| 1591 | break; |
| 1592 | } |
| 1593 | } |
| 1594 | |
| 1595 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 1596 | void FullCodeGenerator::EmitNamedPropertyLoad(Property* prop) { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1597 | SetSourcePosition(prop->position()); |
| 1598 | Literal* key = prop->key()->AsLiteral(); |
| 1599 | __ mov(ecx, Immediate(key->handle())); |
| 1600 | Handle<Code> ic(Builtins::builtin(Builtins::LoadIC_Initialize)); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1601 | EmitCallIC(ic, RelocInfo::CODE_TARGET); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1602 | } |
| 1603 | |
| 1604 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 1605 | void FullCodeGenerator::EmitKeyedPropertyLoad(Property* prop) { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1606 | SetSourcePosition(prop->position()); |
| 1607 | Handle<Code> ic(Builtins::builtin(Builtins::KeyedLoadIC_Initialize)); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1608 | EmitCallIC(ic, RelocInfo::CODE_TARGET); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1609 | } |
| 1610 | |
| 1611 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1612 | void FullCodeGenerator::EmitConstantSmiAdd(Expression* expr, |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1613 | OverwriteMode mode, |
| 1614 | bool left_is_constant_smi, |
| 1615 | Smi* value) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1616 | NearLabel call_stub, done; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1617 | __ add(Operand(eax), Immediate(value)); |
| 1618 | __ j(overflow, &call_stub); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1619 | JumpPatchSite patch_site(masm_); |
| 1620 | patch_site.EmitJumpIfSmi(eax, &done); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1621 | |
| 1622 | // Undo the optimistic add operation and call the shared stub. |
| 1623 | __ bind(&call_stub); |
| 1624 | __ sub(Operand(eax), Immediate(value)); |
| 1625 | Token::Value op = Token::ADD; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1626 | TypeRecordingBinaryOpStub stub(op, mode); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1627 | if (left_is_constant_smi) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1628 | __ mov(edx, Immediate(value)); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1629 | } else { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1630 | __ mov(edx, eax); |
| 1631 | __ mov(eax, Immediate(value)); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1632 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1633 | EmitCallIC(stub.GetCode(), &patch_site); |
| 1634 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1635 | __ bind(&done); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1636 | context()->Plug(eax); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1637 | } |
| 1638 | |
| 1639 | |
| 1640 | void FullCodeGenerator::EmitConstantSmiSub(Expression* expr, |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1641 | OverwriteMode mode, |
| 1642 | bool left_is_constant_smi, |
| 1643 | Smi* value) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1644 | NearLabel call_stub, done; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1645 | if (left_is_constant_smi) { |
| 1646 | __ mov(ecx, eax); |
| 1647 | __ mov(eax, Immediate(value)); |
| 1648 | __ sub(Operand(eax), ecx); |
| 1649 | } else { |
| 1650 | __ sub(Operand(eax), Immediate(value)); |
| 1651 | } |
| 1652 | __ j(overflow, &call_stub); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1653 | JumpPatchSite patch_site(masm_); |
| 1654 | patch_site.EmitJumpIfSmi(eax, &done); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1655 | |
| 1656 | __ bind(&call_stub); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1657 | if (left_is_constant_smi) { |
| 1658 | __ mov(edx, Immediate(value)); |
| 1659 | __ mov(eax, ecx); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1660 | } else { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1661 | __ add(Operand(eax), Immediate(value)); // Undo the subtraction. |
| 1662 | __ mov(edx, eax); |
| 1663 | __ mov(eax, Immediate(value)); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1664 | } |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1665 | Token::Value op = Token::SUB; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1666 | TypeRecordingBinaryOpStub stub(op, mode); |
| 1667 | EmitCallIC(stub.GetCode(), &patch_site); |
| 1668 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1669 | __ bind(&done); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1670 | context()->Plug(eax); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1671 | } |
| 1672 | |
| 1673 | |
| 1674 | void FullCodeGenerator::EmitConstantSmiShiftOp(Expression* expr, |
| 1675 | Token::Value op, |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1676 | OverwriteMode mode, |
| 1677 | Smi* value) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1678 | NearLabel call_stub, smi_case, done; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1679 | int shift_value = value->value() & 0x1f; |
| 1680 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1681 | JumpPatchSite patch_site(masm_); |
| 1682 | patch_site.EmitJumpIfSmi(eax, &smi_case); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1683 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1684 | // Call stub. |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1685 | __ bind(&call_stub); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1686 | __ mov(edx, eax); |
| 1687 | __ mov(eax, Immediate(value)); |
| 1688 | TypeRecordingBinaryOpStub stub(op, mode); |
| 1689 | EmitCallIC(stub.GetCode(), &patch_site); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1690 | __ jmp(&done); |
| 1691 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1692 | // Smi case. |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1693 | __ bind(&smi_case); |
| 1694 | switch (op) { |
| 1695 | case Token::SHL: |
| 1696 | if (shift_value != 0) { |
| 1697 | __ mov(edx, eax); |
| 1698 | if (shift_value > 1) { |
| 1699 | __ shl(edx, shift_value - 1); |
| 1700 | } |
| 1701 | // Convert int result to smi, checking that it is in int range. |
| 1702 | ASSERT(kSmiTagSize == 1); // Adjust code if not the case. |
| 1703 | __ add(edx, Operand(edx)); |
| 1704 | __ j(overflow, &call_stub); |
| 1705 | __ mov(eax, edx); // Put result back into eax. |
| 1706 | } |
| 1707 | break; |
| 1708 | case Token::SAR: |
| 1709 | if (shift_value != 0) { |
| 1710 | __ sar(eax, shift_value); |
| 1711 | __ and_(eax, ~kSmiTagMask); |
| 1712 | } |
| 1713 | break; |
| 1714 | case Token::SHR: |
| 1715 | if (shift_value < 2) { |
| 1716 | __ mov(edx, eax); |
| 1717 | __ SmiUntag(edx); |
| 1718 | __ shr(edx, shift_value); |
| 1719 | __ test(edx, Immediate(0xc0000000)); |
| 1720 | __ j(not_zero, &call_stub); |
| 1721 | __ SmiTag(edx); |
| 1722 | __ mov(eax, edx); // Put result back into eax. |
| 1723 | } else { |
| 1724 | __ SmiUntag(eax); |
| 1725 | __ shr(eax, shift_value); |
| 1726 | __ SmiTag(eax); |
| 1727 | } |
| 1728 | break; |
| 1729 | default: |
| 1730 | UNREACHABLE(); |
| 1731 | } |
| 1732 | |
| 1733 | __ bind(&done); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1734 | context()->Plug(eax); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1735 | } |
| 1736 | |
| 1737 | |
| 1738 | void FullCodeGenerator::EmitConstantSmiBitOp(Expression* expr, |
| 1739 | Token::Value op, |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1740 | OverwriteMode mode, |
| 1741 | Smi* value) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1742 | NearLabel smi_case, done; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1743 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1744 | JumpPatchSite patch_site(masm_); |
| 1745 | patch_site.EmitJumpIfSmi(eax, &smi_case); |
| 1746 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1747 | // The order of the arguments does not matter for bit-ops with a |
| 1748 | // constant operand. |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1749 | __ mov(edx, Immediate(value)); |
| 1750 | TypeRecordingBinaryOpStub stub(op, mode); |
| 1751 | EmitCallIC(stub.GetCode(), &patch_site); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1752 | __ jmp(&done); |
| 1753 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1754 | // Smi case. |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1755 | __ bind(&smi_case); |
| 1756 | switch (op) { |
| 1757 | case Token::BIT_OR: |
| 1758 | __ or_(Operand(eax), Immediate(value)); |
| 1759 | break; |
| 1760 | case Token::BIT_XOR: |
| 1761 | __ xor_(Operand(eax), Immediate(value)); |
| 1762 | break; |
| 1763 | case Token::BIT_AND: |
| 1764 | __ and_(Operand(eax), Immediate(value)); |
| 1765 | break; |
| 1766 | default: |
| 1767 | UNREACHABLE(); |
| 1768 | } |
| 1769 | |
| 1770 | __ bind(&done); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1771 | context()->Plug(eax); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1772 | } |
| 1773 | |
| 1774 | |
| 1775 | void FullCodeGenerator::EmitConstantSmiBinaryOp(Expression* expr, |
| 1776 | Token::Value op, |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1777 | OverwriteMode mode, |
| 1778 | bool left_is_constant_smi, |
| 1779 | Smi* value) { |
| 1780 | switch (op) { |
| 1781 | case Token::BIT_OR: |
| 1782 | case Token::BIT_XOR: |
| 1783 | case Token::BIT_AND: |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1784 | EmitConstantSmiBitOp(expr, op, mode, value); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1785 | break; |
| 1786 | case Token::SHL: |
| 1787 | case Token::SAR: |
| 1788 | case Token::SHR: |
| 1789 | ASSERT(!left_is_constant_smi); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1790 | EmitConstantSmiShiftOp(expr, op, mode, value); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1791 | break; |
| 1792 | case Token::ADD: |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1793 | EmitConstantSmiAdd(expr, mode, left_is_constant_smi, value); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1794 | break; |
| 1795 | case Token::SUB: |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1796 | EmitConstantSmiSub(expr, mode, left_is_constant_smi, value); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1797 | break; |
| 1798 | default: |
| 1799 | UNREACHABLE(); |
| 1800 | } |
| 1801 | } |
| 1802 | |
| 1803 | |
| 1804 | void FullCodeGenerator::EmitInlineSmiBinaryOp(Expression* expr, |
| 1805 | Token::Value op, |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1806 | OverwriteMode mode, |
| 1807 | Expression* left, |
| 1808 | Expression* right, |
| 1809 | ConstantOperand constant) { |
| 1810 | if (constant == kRightConstant) { |
| 1811 | Smi* value = Smi::cast(*right->AsLiteral()->handle()); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1812 | EmitConstantSmiBinaryOp(expr, op, mode, false, value); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1813 | return; |
| 1814 | } else if (constant == kLeftConstant) { |
| 1815 | Smi* value = Smi::cast(*left->AsLiteral()->handle()); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1816 | EmitConstantSmiBinaryOp(expr, op, mode, true, value); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1817 | return; |
| 1818 | } |
| 1819 | |
| 1820 | // Do combined smi check of the operands. Left operand is on the |
| 1821 | // stack. Right operand is in eax. |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1822 | NearLabel done, smi_case, stub_call; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1823 | __ pop(edx); |
| 1824 | __ mov(ecx, eax); |
| 1825 | __ or_(eax, Operand(edx)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1826 | JumpPatchSite patch_site(masm_); |
| 1827 | patch_site.EmitJumpIfSmi(eax, &smi_case); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1828 | |
| 1829 | __ bind(&stub_call); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1830 | __ mov(eax, ecx); |
| 1831 | TypeRecordingBinaryOpStub stub(op, mode); |
| 1832 | EmitCallIC(stub.GetCode(), &patch_site); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1833 | __ jmp(&done); |
| 1834 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1835 | // Smi case. |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1836 | __ bind(&smi_case); |
| 1837 | __ mov(eax, edx); // Copy left operand in case of a stub call. |
| 1838 | |
| 1839 | switch (op) { |
| 1840 | case Token::SAR: |
| 1841 | __ SmiUntag(eax); |
| 1842 | __ SmiUntag(ecx); |
| 1843 | __ sar_cl(eax); // No checks of result necessary |
| 1844 | __ SmiTag(eax); |
| 1845 | break; |
| 1846 | case Token::SHL: { |
| 1847 | Label result_ok; |
| 1848 | __ SmiUntag(eax); |
| 1849 | __ SmiUntag(ecx); |
| 1850 | __ shl_cl(eax); |
| 1851 | // Check that the *signed* result fits in a smi. |
| 1852 | __ cmp(eax, 0xc0000000); |
| 1853 | __ j(positive, &result_ok); |
| 1854 | __ SmiTag(ecx); |
| 1855 | __ jmp(&stub_call); |
| 1856 | __ bind(&result_ok); |
| 1857 | __ SmiTag(eax); |
| 1858 | break; |
| 1859 | } |
| 1860 | case Token::SHR: { |
| 1861 | Label result_ok; |
| 1862 | __ SmiUntag(eax); |
| 1863 | __ SmiUntag(ecx); |
| 1864 | __ shr_cl(eax); |
| 1865 | __ test(eax, Immediate(0xc0000000)); |
| 1866 | __ j(zero, &result_ok); |
| 1867 | __ SmiTag(ecx); |
| 1868 | __ jmp(&stub_call); |
| 1869 | __ bind(&result_ok); |
| 1870 | __ SmiTag(eax); |
| 1871 | break; |
| 1872 | } |
| 1873 | case Token::ADD: |
| 1874 | __ add(eax, Operand(ecx)); |
| 1875 | __ j(overflow, &stub_call); |
| 1876 | break; |
| 1877 | case Token::SUB: |
| 1878 | __ sub(eax, Operand(ecx)); |
| 1879 | __ j(overflow, &stub_call); |
| 1880 | break; |
| 1881 | case Token::MUL: { |
| 1882 | __ SmiUntag(eax); |
| 1883 | __ imul(eax, Operand(ecx)); |
| 1884 | __ j(overflow, &stub_call); |
| 1885 | __ test(eax, Operand(eax)); |
| 1886 | __ j(not_zero, &done, taken); |
| 1887 | __ mov(ebx, edx); |
| 1888 | __ or_(ebx, Operand(ecx)); |
| 1889 | __ j(negative, &stub_call); |
| 1890 | break; |
| 1891 | } |
| 1892 | case Token::BIT_OR: |
| 1893 | __ or_(eax, Operand(ecx)); |
| 1894 | break; |
| 1895 | case Token::BIT_AND: |
| 1896 | __ and_(eax, Operand(ecx)); |
| 1897 | break; |
| 1898 | case Token::BIT_XOR: |
| 1899 | __ xor_(eax, Operand(ecx)); |
| 1900 | break; |
| 1901 | default: |
| 1902 | UNREACHABLE(); |
| 1903 | } |
| 1904 | |
| 1905 | __ bind(&done); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1906 | context()->Plug(eax); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1907 | } |
| 1908 | |
| 1909 | |
| 1910 | void FullCodeGenerator::EmitBinaryOp(Token::Value op, |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1911 | OverwriteMode mode) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1912 | __ pop(edx); |
| 1913 | TypeRecordingBinaryOpStub stub(op, mode); |
| 1914 | EmitCallIC(stub.GetCode(), NULL); // NULL signals no inlined smi code. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1915 | context()->Plug(eax); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1916 | } |
| 1917 | |
| 1918 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1919 | void FullCodeGenerator::EmitAssignment(Expression* expr, int bailout_ast_id) { |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 1920 | // Invalid left-hand sides are rewritten to have a 'throw |
| 1921 | // ReferenceError' on the left-hand side. |
| 1922 | if (!expr->IsValidLeftHandSide()) { |
| 1923 | VisitForEffect(expr); |
| 1924 | return; |
| 1925 | } |
| 1926 | |
| 1927 | // Left-hand side can only be a property, a global or a (parameter or local) |
| 1928 | // slot. Variables with rewrite to .arguments are treated as KEYED_PROPERTY. |
| 1929 | enum LhsKind { VARIABLE, NAMED_PROPERTY, KEYED_PROPERTY }; |
| 1930 | LhsKind assign_type = VARIABLE; |
| 1931 | Property* prop = expr->AsProperty(); |
| 1932 | if (prop != NULL) { |
| 1933 | assign_type = (prop->key()->IsPropertyName()) |
| 1934 | ? NAMED_PROPERTY |
| 1935 | : KEYED_PROPERTY; |
| 1936 | } |
| 1937 | |
| 1938 | switch (assign_type) { |
| 1939 | case VARIABLE: { |
| 1940 | Variable* var = expr->AsVariableProxy()->var(); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1941 | EffectContext context(this); |
| 1942 | EmitVariableAssignment(var, Token::ASSIGN); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 1943 | break; |
| 1944 | } |
| 1945 | case NAMED_PROPERTY: { |
| 1946 | __ push(eax); // Preserve value. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1947 | VisitForAccumulatorValue(prop->obj()); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 1948 | __ mov(edx, eax); |
| 1949 | __ pop(eax); // Restore value. |
| 1950 | __ mov(ecx, prop->key()->AsLiteral()->handle()); |
| 1951 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Initialize)); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1952 | EmitCallIC(ic, RelocInfo::CODE_TARGET); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 1953 | break; |
| 1954 | } |
| 1955 | case KEYED_PROPERTY: { |
| 1956 | __ push(eax); // Preserve value. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1957 | VisitForStackValue(prop->obj()); |
| 1958 | VisitForAccumulatorValue(prop->key()); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 1959 | __ mov(ecx, eax); |
| 1960 | __ pop(edx); |
| 1961 | __ pop(eax); // Restore value. |
| 1962 | Handle<Code> ic(Builtins::builtin(Builtins::KeyedStoreIC_Initialize)); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1963 | EmitCallIC(ic, RelocInfo::CODE_TARGET); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 1964 | break; |
| 1965 | } |
| 1966 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1967 | PrepareForBailoutForId(bailout_ast_id, TOS_REG); |
| 1968 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 1969 | } |
| 1970 | |
| 1971 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 1972 | void FullCodeGenerator::EmitVariableAssignment(Variable* var, |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1973 | Token::Value op) { |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 1974 | // Left-hand sides that rewrite to explicit property accesses do not reach |
| 1975 | // here. |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1976 | ASSERT(var != NULL); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1977 | ASSERT(var->is_global() || var->AsSlot() != NULL); |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 1978 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1979 | if (var->is_global()) { |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 1980 | ASSERT(!var->is_this()); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1981 | // Assignment to a global variable. Use inline caching for the |
| 1982 | // assignment. Right-hand-side value is passed in eax, variable name in |
| 1983 | // ecx, and the global object on the stack. |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1984 | __ mov(ecx, var->name()); |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 1985 | __ mov(edx, GlobalObjectOperand()); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1986 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Initialize)); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1987 | EmitCallIC(ic, RelocInfo::CODE_TARGET); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1988 | |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 1989 | } else if (var->mode() != Variable::CONST || op == Token::INIT_CONST) { |
| 1990 | // Perform the assignment for non-const variables and for initialization |
| 1991 | // of const variables. Const assignments are simply skipped. |
| 1992 | Label done; |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1993 | Slot* slot = var->AsSlot(); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1994 | switch (slot->type()) { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1995 | case Slot::PARAMETER: |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 1996 | case Slot::LOCAL: |
| 1997 | if (op == Token::INIT_CONST) { |
| 1998 | // Detect const reinitialization by checking for the hole value. |
| 1999 | __ mov(edx, Operand(ebp, SlotOffset(slot))); |
| 2000 | __ cmp(edx, Factory::the_hole_value()); |
| 2001 | __ j(not_equal, &done); |
| 2002 | } |
| 2003 | // Perform the assignment. |
| 2004 | __ mov(Operand(ebp, SlotOffset(slot)), eax); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2005 | break; |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2006 | |
| 2007 | case Slot::CONTEXT: { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2008 | MemOperand target = EmitSlotSearch(slot, ecx); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2009 | if (op == Token::INIT_CONST) { |
| 2010 | // Detect const reinitialization by checking for the hole value. |
| 2011 | __ mov(edx, target); |
| 2012 | __ cmp(edx, Factory::the_hole_value()); |
| 2013 | __ j(not_equal, &done); |
| 2014 | } |
| 2015 | // Perform the assignment and issue the write barrier. |
| 2016 | __ mov(target, eax); |
| 2017 | // The value of the assignment is in eax. RecordWrite clobbers its |
| 2018 | // register arguments. |
| 2019 | __ mov(edx, eax); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2020 | int offset = FixedArray::kHeaderSize + slot->index() * kPointerSize; |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2021 | __ RecordWrite(ecx, offset, edx, ebx); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2022 | break; |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 2023 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2024 | |
| 2025 | case Slot::LOOKUP: |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2026 | // Call the runtime for the assignment. The runtime will ignore |
| 2027 | // const reinitialization. |
| 2028 | __ push(eax); // Value. |
| 2029 | __ push(esi); // Context. |
| 2030 | __ push(Immediate(var->name())); |
| 2031 | if (op == Token::INIT_CONST) { |
| 2032 | // The runtime will ignore const redeclaration. |
| 2033 | __ CallRuntime(Runtime::kInitializeConstContextSlot, 3); |
| 2034 | } else { |
| 2035 | __ CallRuntime(Runtime::kStoreContextSlot, 3); |
| 2036 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2037 | break; |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 2038 | } |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2039 | __ bind(&done); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 2040 | } |
| 2041 | } |
| 2042 | |
| 2043 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 2044 | void FullCodeGenerator::EmitNamedPropertyAssignment(Assignment* expr) { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2045 | // Assignment to a property, using a named store IC. |
| 2046 | Property* prop = expr->target()->AsProperty(); |
| 2047 | ASSERT(prop != NULL); |
| 2048 | ASSERT(prop->key()->AsLiteral() != NULL); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 2049 | |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2050 | // If the assignment starts a block of assignments to the same object, |
| 2051 | // change to slow case to avoid the quadratic behavior of repeatedly |
| 2052 | // adding fast properties. |
| 2053 | if (expr->starts_initialization_block()) { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2054 | __ push(result_register()); |
| 2055 | __ push(Operand(esp, kPointerSize)); // Receiver is now under value. |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2056 | __ CallRuntime(Runtime::kToSlowProperties, 1); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2057 | __ pop(result_register()); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2058 | } |
| 2059 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2060 | // Record source code position before IC call. |
| 2061 | SetSourcePosition(expr->position()); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2062 | __ mov(ecx, prop->key()->AsLiteral()->handle()); |
Leon Clarke | 4515c47 | 2010-02-03 11:58:03 +0000 | [diff] [blame] | 2063 | if (expr->ends_initialization_block()) { |
| 2064 | __ mov(edx, Operand(esp, 0)); |
| 2065 | } else { |
| 2066 | __ pop(edx); |
| 2067 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2068 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Initialize)); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2069 | EmitCallIC(ic, RelocInfo::CODE_TARGET); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2070 | |
| 2071 | // If the assignment ends an initialization block, revert to fast case. |
| 2072 | if (expr->ends_initialization_block()) { |
| 2073 | __ push(eax); // Result of assignment, saved even if not needed. |
| 2074 | __ push(Operand(esp, kPointerSize)); // Receiver is under value. |
| 2075 | __ CallRuntime(Runtime::kToFastProperties, 1); |
| 2076 | __ pop(eax); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2077 | __ Drop(1); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2078 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2079 | PrepareForBailoutForId(expr->AssignmentId(), TOS_REG); |
| 2080 | context()->Plug(eax); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2081 | } |
| 2082 | |
| 2083 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 2084 | void FullCodeGenerator::EmitKeyedPropertyAssignment(Assignment* expr) { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2085 | // Assignment to a property, using a keyed store IC. |
| 2086 | |
| 2087 | // If the assignment starts a block of assignments to the same object, |
| 2088 | // change to slow case to avoid the quadratic behavior of repeatedly |
| 2089 | // adding fast properties. |
| 2090 | if (expr->starts_initialization_block()) { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2091 | __ push(result_register()); |
| 2092 | // Receiver is now under the key and value. |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2093 | __ push(Operand(esp, 2 * kPointerSize)); |
| 2094 | __ CallRuntime(Runtime::kToSlowProperties, 1); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2095 | __ pop(result_register()); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2096 | } |
| 2097 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 2098 | __ pop(ecx); |
| 2099 | if (expr->ends_initialization_block()) { |
| 2100 | __ mov(edx, Operand(esp, 0)); // Leave receiver on the stack for later. |
| 2101 | } else { |
| 2102 | __ pop(edx); |
| 2103 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2104 | // Record source code position before IC call. |
| 2105 | SetSourcePosition(expr->position()); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2106 | Handle<Code> ic(Builtins::builtin(Builtins::KeyedStoreIC_Initialize)); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2107 | EmitCallIC(ic, RelocInfo::CODE_TARGET); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2108 | |
| 2109 | // If the assignment ends an initialization block, revert to fast case. |
| 2110 | if (expr->ends_initialization_block()) { |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 2111 | __ pop(edx); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2112 | __ push(eax); // Result of assignment, saved even if not needed. |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 2113 | __ push(edx); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2114 | __ CallRuntime(Runtime::kToFastProperties, 1); |
| 2115 | __ pop(eax); |
| 2116 | } |
| 2117 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2118 | PrepareForBailoutForId(expr->AssignmentId(), TOS_REG); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2119 | context()->Plug(eax); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2120 | } |
| 2121 | |
| 2122 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 2123 | void FullCodeGenerator::VisitProperty(Property* expr) { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2124 | Comment cmnt(masm_, "[ Property"); |
| 2125 | Expression* key = expr->key(); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2126 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2127 | if (key->IsPropertyName()) { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2128 | VisitForAccumulatorValue(expr->obj()); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2129 | EmitNamedPropertyLoad(expr); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2130 | context()->Plug(eax); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2131 | } else { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2132 | VisitForStackValue(expr->obj()); |
| 2133 | VisitForAccumulatorValue(expr->key()); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 2134 | __ pop(edx); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2135 | EmitKeyedPropertyLoad(expr); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2136 | context()->Plug(eax); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2137 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2138 | } |
| 2139 | |
| 2140 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 2141 | void FullCodeGenerator::EmitCallWithIC(Call* expr, |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2142 | Handle<Object> name, |
| 2143 | RelocInfo::Mode mode) { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2144 | // Code common for calls using the IC. |
| 2145 | ZoneList<Expression*>* args = expr->arguments(); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 2146 | int arg_count = args->length(); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2147 | { PreservePositionScope scope(masm()->positions_recorder()); |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 2148 | for (int i = 0; i < arg_count; i++) { |
| 2149 | VisitForStackValue(args->at(i)); |
| 2150 | } |
| 2151 | __ Set(ecx, Immediate(name)); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 2152 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2153 | // Record source position of the IC call. |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2154 | SetSourcePosition(expr->position()); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2155 | InLoopFlag in_loop = (loop_depth() > 0) ? IN_LOOP : NOT_IN_LOOP; |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 2156 | Handle<Code> ic = StubCache::ComputeCallInitialize(arg_count, in_loop); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2157 | EmitCallIC(ic, mode); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2158 | RecordJSReturnSite(expr); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 2159 | // Restore context register. |
| 2160 | __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2161 | context()->Plug(eax); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2162 | } |
| 2163 | |
| 2164 | |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2165 | void FullCodeGenerator::EmitKeyedCallWithIC(Call* expr, |
| 2166 | Expression* key, |
| 2167 | RelocInfo::Mode mode) { |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 2168 | // Load the key. |
| 2169 | VisitForAccumulatorValue(key); |
| 2170 | |
| 2171 | // Swap the name of the function and the receiver on the stack to follow |
| 2172 | // the calling convention for call ICs. |
| 2173 | __ pop(ecx); |
| 2174 | __ push(eax); |
| 2175 | __ push(ecx); |
| 2176 | |
| 2177 | // Load the arguments. |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2178 | ZoneList<Expression*>* args = expr->arguments(); |
| 2179 | int arg_count = args->length(); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2180 | { PreservePositionScope scope(masm()->positions_recorder()); |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 2181 | for (int i = 0; i < arg_count; i++) { |
| 2182 | VisitForStackValue(args->at(i)); |
| 2183 | } |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2184 | } |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2185 | // Record source position of the IC call. |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2186 | SetSourcePosition(expr->position()); |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2187 | InLoopFlag in_loop = (loop_depth() > 0) ? IN_LOOP : NOT_IN_LOOP; |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 2188 | Handle<Code> ic = StubCache::ComputeKeyedCallInitialize(arg_count, in_loop); |
| 2189 | __ mov(ecx, Operand(esp, (arg_count + 1) * kPointerSize)); // Key. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2190 | EmitCallIC(ic, mode); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2191 | RecordJSReturnSite(expr); |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2192 | // Restore context register. |
| 2193 | __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 2194 | context()->DropAndPlug(1, eax); // Drop the key still on the stack. |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2195 | } |
| 2196 | |
| 2197 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 2198 | void FullCodeGenerator::EmitCallWithStub(Call* expr) { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2199 | // Code common for calls using the call stub. |
| 2200 | ZoneList<Expression*>* args = expr->arguments(); |
| 2201 | int arg_count = args->length(); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2202 | { PreservePositionScope scope(masm()->positions_recorder()); |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 2203 | for (int i = 0; i < arg_count; i++) { |
| 2204 | VisitForStackValue(args->at(i)); |
| 2205 | } |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 2206 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2207 | // Record source position for debugger. |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2208 | SetSourcePosition(expr->position()); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2209 | InLoopFlag in_loop = (loop_depth() > 0) ? IN_LOOP : NOT_IN_LOOP; |
| 2210 | CallFunctionStub stub(arg_count, in_loop, RECEIVER_MIGHT_BE_VALUE); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2211 | __ CallStub(&stub); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2212 | RecordJSReturnSite(expr); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2213 | // Restore context register. |
| 2214 | __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2215 | context()->DropAndPlug(1, eax); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2216 | } |
| 2217 | |
| 2218 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 2219 | void FullCodeGenerator::VisitCall(Call* expr) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2220 | #ifdef DEBUG |
| 2221 | // We want to verify that RecordJSReturnSite gets called on all paths |
| 2222 | // through this function. Avoid early returns. |
| 2223 | expr->return_is_recorded_ = false; |
| 2224 | #endif |
| 2225 | |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2226 | Comment cmnt(masm_, "[ Call"); |
| 2227 | Expression* fun = expr->expression(); |
| 2228 | Variable* var = fun->AsVariableProxy()->AsVariable(); |
| 2229 | |
| 2230 | if (var != NULL && var->is_possibly_eval()) { |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2231 | // In a call to eval, we first call %ResolvePossiblyDirectEval to |
| 2232 | // resolve the function we need to call and the receiver of the |
| 2233 | // call. Then we call the resolved function using the given |
| 2234 | // arguments. |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2235 | ZoneList<Expression*>* args = expr->arguments(); |
| 2236 | int arg_count = args->length(); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2237 | { PreservePositionScope pos_scope(masm()->positions_recorder()); |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 2238 | VisitForStackValue(fun); |
| 2239 | // Reserved receiver slot. |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2240 | __ push(Immediate(Factory::undefined_value())); |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 2241 | |
| 2242 | // Push the arguments. |
| 2243 | for (int i = 0; i < arg_count; i++) { |
| 2244 | VisitForStackValue(args->at(i)); |
| 2245 | } |
| 2246 | |
| 2247 | // Push copy of the function - found below the arguments. |
| 2248 | __ push(Operand(esp, (arg_count + 1) * kPointerSize)); |
| 2249 | |
| 2250 | // Push copy of the first argument or undefined if it doesn't exist. |
| 2251 | if (arg_count > 0) { |
| 2252 | __ push(Operand(esp, arg_count * kPointerSize)); |
| 2253 | } else { |
| 2254 | __ push(Immediate(Factory::undefined_value())); |
| 2255 | } |
| 2256 | |
| 2257 | // Push the receiver of the enclosing function and do runtime call. |
| 2258 | __ push(Operand(ebp, (2 + scope()->num_parameters()) * kPointerSize)); |
| 2259 | __ CallRuntime(Runtime::kResolvePossiblyDirectEval, 3); |
| 2260 | |
| 2261 | // The runtime call returns a pair of values in eax (function) and |
| 2262 | // edx (receiver). Touch up the stack with the right values. |
| 2263 | __ mov(Operand(esp, (arg_count + 0) * kPointerSize), edx); |
| 2264 | __ mov(Operand(esp, (arg_count + 1) * kPointerSize), eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2265 | } |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2266 | // Record source position for debugger. |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2267 | SetSourcePosition(expr->position()); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2268 | InLoopFlag in_loop = (loop_depth() > 0) ? IN_LOOP : NOT_IN_LOOP; |
| 2269 | CallFunctionStub stub(arg_count, in_loop, RECEIVER_MIGHT_BE_VALUE); |
| 2270 | __ CallStub(&stub); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2271 | RecordJSReturnSite(expr); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2272 | // Restore context register. |
| 2273 | __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2274 | context()->DropAndPlug(1, eax); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2275 | } else if (var != NULL && !var->is_this() && var->is_global()) { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2276 | // Push global object as receiver for the call IC. |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 2277 | __ push(GlobalObjectOperand()); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2278 | EmitCallWithIC(expr, var->name(), RelocInfo::CODE_TARGET_CONTEXT); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2279 | } else if (var != NULL && var->AsSlot() != NULL && |
| 2280 | var->AsSlot()->type() == Slot::LOOKUP) { |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 2281 | // Call to a lookup slot (dynamically introduced variable). |
| 2282 | Label slow, done; |
| 2283 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2284 | { PreservePositionScope scope(masm()->positions_recorder()); |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 2285 | // Generate code for loading from variables potentially shadowed |
| 2286 | // by eval-introduced variables. |
| 2287 | EmitDynamicLoadFromSlotFastCase(var->AsSlot(), |
| 2288 | NOT_INSIDE_TYPEOF, |
| 2289 | &slow, |
| 2290 | &done); |
| 2291 | } |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 2292 | |
| 2293 | __ bind(&slow); |
| 2294 | // Call the runtime to find the function to call (returned in eax) |
| 2295 | // and the object holding it (returned in edx). |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2296 | __ push(context_register()); |
| 2297 | __ push(Immediate(var->name())); |
| 2298 | __ CallRuntime(Runtime::kLoadContextSlot, 2); |
| 2299 | __ push(eax); // Function. |
| 2300 | __ push(edx); // Receiver. |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 2301 | |
| 2302 | // If fast case code has been generated, emit code to push the |
| 2303 | // function and receiver and have the slow path jump around this |
| 2304 | // code. |
| 2305 | if (done.is_linked()) { |
| 2306 | Label call; |
| 2307 | __ jmp(&call); |
| 2308 | __ bind(&done); |
| 2309 | // Push function. |
| 2310 | __ push(eax); |
| 2311 | // Push global receiver. |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 2312 | __ mov(ebx, GlobalObjectOperand()); |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 2313 | __ push(FieldOperand(ebx, GlobalObject::kGlobalReceiverOffset)); |
| 2314 | __ bind(&call); |
| 2315 | } |
| 2316 | |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2317 | EmitCallWithStub(expr); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2318 | } else if (fun->AsProperty() != NULL) { |
| 2319 | // Call to an object property. |
| 2320 | Property* prop = fun->AsProperty(); |
| 2321 | Literal* key = prop->key()->AsLiteral(); |
| 2322 | if (key != NULL && key->handle()->IsSymbol()) { |
| 2323 | // Call to a named property, use call IC. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2324 | VisitForStackValue(prop->obj()); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2325 | EmitCallWithIC(expr, key->handle(), RelocInfo::CODE_TARGET); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2326 | } else { |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2327 | // Call to a keyed property. |
| 2328 | // For a synthetic property use keyed load IC followed by function call, |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2329 | // for a regular property use keyed EmitCallIC. |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2330 | { PreservePositionScope scope(masm()->positions_recorder()); |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 2331 | VisitForStackValue(prop->obj()); |
| 2332 | } |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 2333 | if (prop->is_synthetic()) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2334 | { PreservePositionScope scope(masm()->positions_recorder()); |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 2335 | VisitForAccumulatorValue(prop->key()); |
| 2336 | } |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2337 | // Record source code position for IC call. |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2338 | SetSourcePosition(prop->position()); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 2339 | __ pop(edx); // We do not need to keep the receiver. |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 2340 | |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2341 | Handle<Code> ic(Builtins::builtin(Builtins::KeyedLoadIC_Initialize)); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2342 | EmitCallIC(ic, RelocInfo::CODE_TARGET); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 2343 | // Push result (function). |
| 2344 | __ push(eax); |
| 2345 | // Push Global receiver. |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 2346 | __ mov(ecx, GlobalObjectOperand()); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2347 | __ push(FieldOperand(ecx, GlobalObject::kGlobalReceiverOffset)); |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2348 | EmitCallWithStub(expr); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2349 | } else { |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2350 | EmitKeyedCallWithIC(expr, prop->key(), RelocInfo::CODE_TARGET); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2351 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2352 | } |
| 2353 | } else { |
| 2354 | // Call to some other expression. If the expression is an anonymous |
| 2355 | // function literal not called in a loop, mark it as one that should |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 2356 | // also use the full code generator. |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2357 | FunctionLiteral* lit = fun->AsFunctionLiteral(); |
| 2358 | if (lit != NULL && |
| 2359 | lit->name()->Equals(Heap::empty_string()) && |
| 2360 | loop_depth() == 0) { |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 2361 | lit->set_try_full_codegen(true); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2362 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2363 | { PreservePositionScope scope(masm()->positions_recorder()); |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 2364 | VisitForStackValue(fun); |
| 2365 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2366 | // Load global receiver object. |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 2367 | __ mov(ebx, GlobalObjectOperand()); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2368 | __ push(FieldOperand(ebx, GlobalObject::kGlobalReceiverOffset)); |
| 2369 | // Emit function call. |
| 2370 | EmitCallWithStub(expr); |
| 2371 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2372 | |
| 2373 | #ifdef DEBUG |
| 2374 | // RecordJSReturnSite should have been called. |
| 2375 | ASSERT(expr->return_is_recorded_); |
| 2376 | #endif |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2377 | } |
| 2378 | |
| 2379 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 2380 | void FullCodeGenerator::VisitCallNew(CallNew* expr) { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2381 | Comment cmnt(masm_, "[ CallNew"); |
| 2382 | // According to ECMA-262, section 11.2.2, page 44, the function |
| 2383 | // expression in new calls must be evaluated before the |
| 2384 | // arguments. |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2385 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2386 | // Push constructor on the stack. If it's not a function it's used as |
| 2387 | // receiver for CALL_NON_FUNCTION, otherwise the value on the stack is |
| 2388 | // ignored. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2389 | VisitForStackValue(expr->expression()); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2390 | |
| 2391 | // Push the arguments ("left-to-right") on the stack. |
| 2392 | ZoneList<Expression*>* args = expr->arguments(); |
| 2393 | int arg_count = args->length(); |
| 2394 | for (int i = 0; i < arg_count; i++) { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2395 | VisitForStackValue(args->at(i)); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2396 | } |
| 2397 | |
| 2398 | // Call the construct call builtin that handles allocation and |
| 2399 | // constructor invocation. |
| 2400 | SetSourcePosition(expr->position()); |
| 2401 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2402 | // Load function and argument count into edi and eax. |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2403 | __ Set(eax, Immediate(arg_count)); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2404 | __ mov(edi, Operand(esp, arg_count * kPointerSize)); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 2405 | |
| 2406 | Handle<Code> construct_builtin(Builtins::builtin(Builtins::JSConstructCall)); |
| 2407 | __ call(construct_builtin, RelocInfo::CONSTRUCT_CALL); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2408 | context()->Plug(eax); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 2409 | } |
| 2410 | |
| 2411 | |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2412 | void FullCodeGenerator::EmitIsSmi(ZoneList<Expression*>* args) { |
| 2413 | ASSERT(args->length() == 1); |
| 2414 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2415 | VisitForAccumulatorValue(args->at(0)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2416 | |
| 2417 | Label materialize_true, materialize_false; |
| 2418 | Label* if_true = NULL; |
| 2419 | Label* if_false = NULL; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2420 | Label* fall_through = NULL; |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2421 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 2422 | &if_true, &if_false, &fall_through); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2423 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2424 | PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2425 | __ test(eax, Immediate(kSmiTagMask)); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2426 | Split(zero, if_true, if_false, fall_through); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2427 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2428 | context()->Plug(if_true, if_false); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2429 | } |
| 2430 | |
| 2431 | |
| 2432 | void FullCodeGenerator::EmitIsNonNegativeSmi(ZoneList<Expression*>* args) { |
| 2433 | ASSERT(args->length() == 1); |
| 2434 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2435 | VisitForAccumulatorValue(args->at(0)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2436 | |
| 2437 | Label materialize_true, materialize_false; |
| 2438 | Label* if_true = NULL; |
| 2439 | Label* if_false = NULL; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2440 | Label* fall_through = NULL; |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2441 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 2442 | &if_true, &if_false, &fall_through); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2443 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2444 | PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2445 | __ test(eax, Immediate(kSmiTagMask | 0x80000000)); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2446 | Split(zero, if_true, if_false, fall_through); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2447 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2448 | context()->Plug(if_true, if_false); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2449 | } |
| 2450 | |
| 2451 | |
| 2452 | void FullCodeGenerator::EmitIsObject(ZoneList<Expression*>* args) { |
| 2453 | ASSERT(args->length() == 1); |
| 2454 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2455 | VisitForAccumulatorValue(args->at(0)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2456 | |
| 2457 | Label materialize_true, materialize_false; |
| 2458 | Label* if_true = NULL; |
| 2459 | Label* if_false = NULL; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2460 | Label* fall_through = NULL; |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2461 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 2462 | &if_true, &if_false, &fall_through); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2463 | |
| 2464 | __ test(eax, Immediate(kSmiTagMask)); |
| 2465 | __ j(zero, if_false); |
| 2466 | __ cmp(eax, Factory::null_value()); |
| 2467 | __ j(equal, if_true); |
| 2468 | __ mov(ebx, FieldOperand(eax, HeapObject::kMapOffset)); |
| 2469 | // Undetectable objects behave like undefined when tested with typeof. |
| 2470 | __ movzx_b(ecx, FieldOperand(ebx, Map::kBitFieldOffset)); |
| 2471 | __ test(ecx, Immediate(1 << Map::kIsUndetectable)); |
| 2472 | __ j(not_zero, if_false); |
| 2473 | __ movzx_b(ecx, FieldOperand(ebx, Map::kInstanceTypeOffset)); |
| 2474 | __ cmp(ecx, FIRST_JS_OBJECT_TYPE); |
| 2475 | __ j(below, if_false); |
| 2476 | __ cmp(ecx, LAST_JS_OBJECT_TYPE); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2477 | PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2478 | Split(below_equal, if_true, if_false, fall_through); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2479 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2480 | context()->Plug(if_true, if_false); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2481 | } |
| 2482 | |
| 2483 | |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 2484 | void FullCodeGenerator::EmitIsSpecObject(ZoneList<Expression*>* args) { |
| 2485 | ASSERT(args->length() == 1); |
| 2486 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2487 | VisitForAccumulatorValue(args->at(0)); |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 2488 | |
| 2489 | Label materialize_true, materialize_false; |
| 2490 | Label* if_true = NULL; |
| 2491 | Label* if_false = NULL; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2492 | Label* fall_through = NULL; |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2493 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 2494 | &if_true, &if_false, &fall_through); |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 2495 | |
| 2496 | __ test(eax, Immediate(kSmiTagMask)); |
| 2497 | __ j(equal, if_false); |
| 2498 | __ CmpObjectType(eax, FIRST_JS_OBJECT_TYPE, ebx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2499 | PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2500 | Split(above_equal, if_true, if_false, fall_through); |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 2501 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2502 | context()->Plug(if_true, if_false); |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 2503 | } |
| 2504 | |
| 2505 | |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2506 | void FullCodeGenerator::EmitIsUndetectableObject(ZoneList<Expression*>* args) { |
| 2507 | ASSERT(args->length() == 1); |
| 2508 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2509 | VisitForAccumulatorValue(args->at(0)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2510 | |
| 2511 | Label materialize_true, materialize_false; |
| 2512 | Label* if_true = NULL; |
| 2513 | Label* if_false = NULL; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2514 | Label* fall_through = NULL; |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2515 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 2516 | &if_true, &if_false, &fall_through); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2517 | |
| 2518 | __ test(eax, Immediate(kSmiTagMask)); |
| 2519 | __ j(zero, if_false); |
| 2520 | __ mov(ebx, FieldOperand(eax, HeapObject::kMapOffset)); |
| 2521 | __ movzx_b(ebx, FieldOperand(ebx, Map::kBitFieldOffset)); |
| 2522 | __ test(ebx, Immediate(1 << Map::kIsUndetectable)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2523 | PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2524 | Split(not_zero, if_true, if_false, fall_through); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2525 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2526 | context()->Plug(if_true, if_false); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2527 | } |
| 2528 | |
| 2529 | |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 2530 | void FullCodeGenerator::EmitIsStringWrapperSafeForDefaultValueOf( |
| 2531 | ZoneList<Expression*>* args) { |
| 2532 | ASSERT(args->length() == 1); |
| 2533 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2534 | VisitForAccumulatorValue(args->at(0)); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 2535 | |
| 2536 | Label materialize_true, materialize_false; |
| 2537 | Label* if_true = NULL; |
| 2538 | Label* if_false = NULL; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2539 | Label* fall_through = NULL; |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2540 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 2541 | &if_true, &if_false, &fall_through); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 2542 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2543 | // TODO(3110205): Implement this. |
| 2544 | // Currently unimplemented. Emit false, a safe choice. |
| 2545 | PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 2546 | __ jmp(if_false); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2547 | context()->Plug(if_true, if_false); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 2548 | } |
| 2549 | |
| 2550 | |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2551 | void FullCodeGenerator::EmitIsFunction(ZoneList<Expression*>* args) { |
| 2552 | ASSERT(args->length() == 1); |
| 2553 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2554 | VisitForAccumulatorValue(args->at(0)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2555 | |
| 2556 | Label materialize_true, materialize_false; |
| 2557 | Label* if_true = NULL; |
| 2558 | Label* if_false = NULL; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2559 | Label* fall_through = NULL; |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2560 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 2561 | &if_true, &if_false, &fall_through); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2562 | |
| 2563 | __ test(eax, Immediate(kSmiTagMask)); |
| 2564 | __ j(zero, if_false); |
| 2565 | __ CmpObjectType(eax, JS_FUNCTION_TYPE, ebx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2566 | PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2567 | Split(equal, if_true, if_false, fall_through); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2568 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2569 | context()->Plug(if_true, if_false); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2570 | } |
| 2571 | |
| 2572 | |
| 2573 | void FullCodeGenerator::EmitIsArray(ZoneList<Expression*>* args) { |
| 2574 | ASSERT(args->length() == 1); |
| 2575 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2576 | VisitForAccumulatorValue(args->at(0)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2577 | |
| 2578 | Label materialize_true, materialize_false; |
| 2579 | Label* if_true = NULL; |
| 2580 | Label* if_false = NULL; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2581 | Label* fall_through = NULL; |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2582 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 2583 | &if_true, &if_false, &fall_through); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2584 | |
| 2585 | __ test(eax, Immediate(kSmiTagMask)); |
| 2586 | __ j(equal, if_false); |
| 2587 | __ CmpObjectType(eax, JS_ARRAY_TYPE, ebx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2588 | PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2589 | Split(equal, if_true, if_false, fall_through); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2590 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2591 | context()->Plug(if_true, if_false); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2592 | } |
| 2593 | |
| 2594 | |
| 2595 | void FullCodeGenerator::EmitIsRegExp(ZoneList<Expression*>* args) { |
| 2596 | ASSERT(args->length() == 1); |
| 2597 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2598 | VisitForAccumulatorValue(args->at(0)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2599 | |
| 2600 | Label materialize_true, materialize_false; |
| 2601 | Label* if_true = NULL; |
| 2602 | Label* if_false = NULL; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2603 | Label* fall_through = NULL; |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2604 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 2605 | &if_true, &if_false, &fall_through); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2606 | |
| 2607 | __ test(eax, Immediate(kSmiTagMask)); |
| 2608 | __ j(equal, if_false); |
| 2609 | __ CmpObjectType(eax, JS_REGEXP_TYPE, ebx); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2610 | PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2611 | Split(equal, if_true, if_false, fall_through); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2612 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2613 | context()->Plug(if_true, if_false); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2614 | } |
| 2615 | |
| 2616 | |
| 2617 | |
| 2618 | void FullCodeGenerator::EmitIsConstructCall(ZoneList<Expression*>* args) { |
| 2619 | ASSERT(args->length() == 0); |
| 2620 | |
| 2621 | Label materialize_true, materialize_false; |
| 2622 | Label* if_true = NULL; |
| 2623 | Label* if_false = NULL; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2624 | Label* fall_through = NULL; |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2625 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 2626 | &if_true, &if_false, &fall_through); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2627 | |
| 2628 | // Get the frame pointer for the calling frame. |
| 2629 | __ mov(eax, Operand(ebp, StandardFrameConstants::kCallerFPOffset)); |
| 2630 | |
| 2631 | // Skip the arguments adaptor frame if it exists. |
| 2632 | Label check_frame_marker; |
| 2633 | __ cmp(Operand(eax, StandardFrameConstants::kContextOffset), |
| 2634 | Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
| 2635 | __ j(not_equal, &check_frame_marker); |
| 2636 | __ mov(eax, Operand(eax, StandardFrameConstants::kCallerFPOffset)); |
| 2637 | |
| 2638 | // Check the marker in the calling frame. |
| 2639 | __ bind(&check_frame_marker); |
| 2640 | __ cmp(Operand(eax, StandardFrameConstants::kMarkerOffset), |
| 2641 | Immediate(Smi::FromInt(StackFrame::CONSTRUCT))); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2642 | PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2643 | Split(equal, if_true, if_false, fall_through); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2644 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2645 | context()->Plug(if_true, if_false); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2646 | } |
| 2647 | |
| 2648 | |
| 2649 | void FullCodeGenerator::EmitObjectEquals(ZoneList<Expression*>* args) { |
| 2650 | ASSERT(args->length() == 2); |
| 2651 | |
| 2652 | // Load the two objects into registers and perform the comparison. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2653 | VisitForStackValue(args->at(0)); |
| 2654 | VisitForAccumulatorValue(args->at(1)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2655 | |
| 2656 | Label materialize_true, materialize_false; |
| 2657 | Label* if_true = NULL; |
| 2658 | Label* if_false = NULL; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2659 | Label* fall_through = NULL; |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2660 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 2661 | &if_true, &if_false, &fall_through); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2662 | |
| 2663 | __ pop(ebx); |
| 2664 | __ cmp(eax, Operand(ebx)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2665 | PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 2666 | Split(equal, if_true, if_false, fall_through); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2667 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2668 | context()->Plug(if_true, if_false); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2669 | } |
| 2670 | |
| 2671 | |
| 2672 | void FullCodeGenerator::EmitArguments(ZoneList<Expression*>* args) { |
| 2673 | ASSERT(args->length() == 1); |
| 2674 | |
| 2675 | // ArgumentsAccessStub expects the key in edx and the formal |
| 2676 | // parameter count in eax. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2677 | VisitForAccumulatorValue(args->at(0)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2678 | __ mov(edx, eax); |
| 2679 | __ mov(eax, Immediate(Smi::FromInt(scope()->num_parameters()))); |
| 2680 | ArgumentsAccessStub stub(ArgumentsAccessStub::READ_ELEMENT); |
| 2681 | __ CallStub(&stub); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2682 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2683 | } |
| 2684 | |
| 2685 | |
| 2686 | void FullCodeGenerator::EmitArgumentsLength(ZoneList<Expression*>* args) { |
| 2687 | ASSERT(args->length() == 0); |
| 2688 | |
| 2689 | Label exit; |
| 2690 | // Get the number of formal parameters. |
| 2691 | __ Set(eax, Immediate(Smi::FromInt(scope()->num_parameters()))); |
| 2692 | |
| 2693 | // Check if the calling frame is an arguments adaptor frame. |
| 2694 | __ mov(ebx, Operand(ebp, StandardFrameConstants::kCallerFPOffset)); |
| 2695 | __ cmp(Operand(ebx, StandardFrameConstants::kContextOffset), |
| 2696 | Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
| 2697 | __ j(not_equal, &exit); |
| 2698 | |
| 2699 | // Arguments adaptor case: Read the arguments length from the |
| 2700 | // adaptor frame. |
| 2701 | __ mov(eax, Operand(ebx, ArgumentsAdaptorFrameConstants::kLengthOffset)); |
| 2702 | |
| 2703 | __ bind(&exit); |
| 2704 | if (FLAG_debug_code) __ AbortIfNotSmi(eax); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2705 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2706 | } |
| 2707 | |
| 2708 | |
| 2709 | void FullCodeGenerator::EmitClassOf(ZoneList<Expression*>* args) { |
| 2710 | ASSERT(args->length() == 1); |
| 2711 | Label done, null, function, non_function_constructor; |
| 2712 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2713 | VisitForAccumulatorValue(args->at(0)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2714 | |
| 2715 | // If the object is a smi, we return null. |
| 2716 | __ test(eax, Immediate(kSmiTagMask)); |
| 2717 | __ j(zero, &null); |
| 2718 | |
| 2719 | // Check that the object is a JS object but take special care of JS |
| 2720 | // functions to make sure they have 'Function' as their class. |
| 2721 | __ CmpObjectType(eax, FIRST_JS_OBJECT_TYPE, eax); // Map is now in eax. |
| 2722 | __ j(below, &null); |
| 2723 | |
| 2724 | // As long as JS_FUNCTION_TYPE is the last instance type and it is |
| 2725 | // right after LAST_JS_OBJECT_TYPE, we can avoid checking for |
| 2726 | // LAST_JS_OBJECT_TYPE. |
| 2727 | ASSERT(LAST_TYPE == JS_FUNCTION_TYPE); |
| 2728 | ASSERT(JS_FUNCTION_TYPE == LAST_JS_OBJECT_TYPE + 1); |
Steve Block | 8defd9f | 2010-07-08 12:39:36 +0100 | [diff] [blame] | 2729 | __ CmpInstanceType(eax, JS_FUNCTION_TYPE); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2730 | __ j(equal, &function); |
| 2731 | |
| 2732 | // Check if the constructor in the map is a function. |
| 2733 | __ mov(eax, FieldOperand(eax, Map::kConstructorOffset)); |
| 2734 | __ CmpObjectType(eax, JS_FUNCTION_TYPE, ebx); |
| 2735 | __ j(not_equal, &non_function_constructor); |
| 2736 | |
| 2737 | // eax now contains the constructor function. Grab the |
| 2738 | // instance class name from there. |
| 2739 | __ mov(eax, FieldOperand(eax, JSFunction::kSharedFunctionInfoOffset)); |
| 2740 | __ mov(eax, FieldOperand(eax, SharedFunctionInfo::kInstanceClassNameOffset)); |
| 2741 | __ jmp(&done); |
| 2742 | |
| 2743 | // Functions have class 'Function'. |
| 2744 | __ bind(&function); |
| 2745 | __ mov(eax, Factory::function_class_symbol()); |
| 2746 | __ jmp(&done); |
| 2747 | |
| 2748 | // Objects with a non-function constructor have class 'Object'. |
| 2749 | __ bind(&non_function_constructor); |
| 2750 | __ mov(eax, Factory::Object_symbol()); |
| 2751 | __ jmp(&done); |
| 2752 | |
| 2753 | // Non-JS objects have class null. |
| 2754 | __ bind(&null); |
| 2755 | __ mov(eax, Factory::null_value()); |
| 2756 | |
| 2757 | // All done. |
| 2758 | __ bind(&done); |
| 2759 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2760 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2761 | } |
| 2762 | |
| 2763 | |
| 2764 | void FullCodeGenerator::EmitLog(ZoneList<Expression*>* args) { |
| 2765 | // Conditionally generate a log call. |
| 2766 | // Args: |
| 2767 | // 0 (literal string): The type of logging (corresponds to the flags). |
| 2768 | // This is used to determine whether or not to generate the log call. |
| 2769 | // 1 (string): Format string. Access the string at argument index 2 |
| 2770 | // with '%2s' (see Logger::LogRuntime for all the formats). |
| 2771 | // 2 (array): Arguments to the format string. |
| 2772 | ASSERT_EQ(args->length(), 3); |
| 2773 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 2774 | if (CodeGenerator::ShouldGenerateLog(args->at(0))) { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2775 | VisitForStackValue(args->at(1)); |
| 2776 | VisitForStackValue(args->at(2)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2777 | __ CallRuntime(Runtime::kLog, 2); |
| 2778 | } |
| 2779 | #endif |
| 2780 | // Finally, we're expected to leave a value on the top of the stack. |
| 2781 | __ mov(eax, Factory::undefined_value()); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2782 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2783 | } |
| 2784 | |
| 2785 | |
| 2786 | void FullCodeGenerator::EmitRandomHeapNumber(ZoneList<Expression*>* args) { |
| 2787 | ASSERT(args->length() == 0); |
| 2788 | |
| 2789 | Label slow_allocate_heapnumber; |
| 2790 | Label heapnumber_allocated; |
| 2791 | |
| 2792 | __ AllocateHeapNumber(edi, ebx, ecx, &slow_allocate_heapnumber); |
| 2793 | __ jmp(&heapnumber_allocated); |
| 2794 | |
| 2795 | __ bind(&slow_allocate_heapnumber); |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 2796 | // Allocate a heap number. |
| 2797 | __ CallRuntime(Runtime::kNumberAlloc, 0); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2798 | __ mov(edi, eax); |
| 2799 | |
| 2800 | __ bind(&heapnumber_allocated); |
| 2801 | |
| 2802 | __ PrepareCallCFunction(0, ebx); |
| 2803 | __ CallCFunction(ExternalReference::random_uint32_function(), 0); |
| 2804 | |
| 2805 | // Convert 32 random bits in eax to 0.(32 random bits) in a double |
| 2806 | // by computing: |
| 2807 | // ( 1.(20 0s)(32 random bits) x 2^20 ) - (1.0 x 2^20)). |
| 2808 | // This is implemented on both SSE2 and FPU. |
| 2809 | if (CpuFeatures::IsSupported(SSE2)) { |
| 2810 | CpuFeatures::Scope fscope(SSE2); |
| 2811 | __ mov(ebx, Immediate(0x49800000)); // 1.0 x 2^20 as single. |
| 2812 | __ movd(xmm1, Operand(ebx)); |
| 2813 | __ movd(xmm0, Operand(eax)); |
| 2814 | __ cvtss2sd(xmm1, xmm1); |
| 2815 | __ pxor(xmm0, xmm1); |
| 2816 | __ subsd(xmm0, xmm1); |
| 2817 | __ movdbl(FieldOperand(edi, HeapNumber::kValueOffset), xmm0); |
| 2818 | } else { |
| 2819 | // 0x4130000000000000 is 1.0 x 2^20 as a double. |
| 2820 | __ mov(FieldOperand(edi, HeapNumber::kExponentOffset), |
| 2821 | Immediate(0x41300000)); |
| 2822 | __ mov(FieldOperand(edi, HeapNumber::kMantissaOffset), eax); |
| 2823 | __ fld_d(FieldOperand(edi, HeapNumber::kValueOffset)); |
| 2824 | __ mov(FieldOperand(edi, HeapNumber::kMantissaOffset), Immediate(0)); |
| 2825 | __ fld_d(FieldOperand(edi, HeapNumber::kValueOffset)); |
| 2826 | __ fsubp(1); |
| 2827 | __ fstp_d(FieldOperand(edi, HeapNumber::kValueOffset)); |
| 2828 | } |
| 2829 | __ mov(eax, edi); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2830 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2831 | } |
| 2832 | |
| 2833 | |
| 2834 | void FullCodeGenerator::EmitSubString(ZoneList<Expression*>* args) { |
| 2835 | // Load the arguments on the stack and call the stub. |
| 2836 | SubStringStub stub; |
| 2837 | ASSERT(args->length() == 3); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2838 | VisitForStackValue(args->at(0)); |
| 2839 | VisitForStackValue(args->at(1)); |
| 2840 | VisitForStackValue(args->at(2)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2841 | __ CallStub(&stub); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2842 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2843 | } |
| 2844 | |
| 2845 | |
| 2846 | void FullCodeGenerator::EmitRegExpExec(ZoneList<Expression*>* args) { |
| 2847 | // Load the arguments on the stack and call the stub. |
| 2848 | RegExpExecStub stub; |
| 2849 | ASSERT(args->length() == 4); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2850 | VisitForStackValue(args->at(0)); |
| 2851 | VisitForStackValue(args->at(1)); |
| 2852 | VisitForStackValue(args->at(2)); |
| 2853 | VisitForStackValue(args->at(3)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2854 | __ CallStub(&stub); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2855 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2856 | } |
| 2857 | |
| 2858 | |
| 2859 | void FullCodeGenerator::EmitValueOf(ZoneList<Expression*>* args) { |
| 2860 | ASSERT(args->length() == 1); |
| 2861 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2862 | VisitForAccumulatorValue(args->at(0)); // Load the object. |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2863 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2864 | NearLabel done; |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2865 | // If the object is a smi return the object. |
| 2866 | __ test(eax, Immediate(kSmiTagMask)); |
| 2867 | __ j(zero, &done); |
| 2868 | // If the object is not a value type, return the object. |
| 2869 | __ CmpObjectType(eax, JS_VALUE_TYPE, ebx); |
| 2870 | __ j(not_equal, &done); |
| 2871 | __ mov(eax, FieldOperand(eax, JSValue::kValueOffset)); |
| 2872 | |
| 2873 | __ bind(&done); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2874 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2875 | } |
| 2876 | |
| 2877 | |
| 2878 | void FullCodeGenerator::EmitMathPow(ZoneList<Expression*>* args) { |
| 2879 | // Load the arguments on the stack and call the runtime function. |
| 2880 | ASSERT(args->length() == 2); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2881 | VisitForStackValue(args->at(0)); |
| 2882 | VisitForStackValue(args->at(1)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 2883 | |
| 2884 | MathPowStub stub; |
| 2885 | __ CallStub(&stub); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2886 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2887 | } |
| 2888 | |
| 2889 | |
| 2890 | void FullCodeGenerator::EmitSetValueOf(ZoneList<Expression*>* args) { |
| 2891 | ASSERT(args->length() == 2); |
| 2892 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2893 | VisitForStackValue(args->at(0)); // Load the object. |
| 2894 | VisitForAccumulatorValue(args->at(1)); // Load the value. |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2895 | __ pop(ebx); // eax = value. ebx = object. |
| 2896 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2897 | NearLabel done; |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2898 | // If the object is a smi, return the value. |
| 2899 | __ test(ebx, Immediate(kSmiTagMask)); |
| 2900 | __ j(zero, &done); |
| 2901 | |
| 2902 | // If the object is not a value type, return the value. |
| 2903 | __ CmpObjectType(ebx, JS_VALUE_TYPE, ecx); |
| 2904 | __ j(not_equal, &done); |
| 2905 | |
| 2906 | // Store the value. |
| 2907 | __ mov(FieldOperand(ebx, JSValue::kValueOffset), eax); |
| 2908 | // Update the write barrier. Save the value as it will be |
| 2909 | // overwritten by the write barrier code and is needed afterward. |
| 2910 | __ mov(edx, eax); |
| 2911 | __ RecordWrite(ebx, JSValue::kValueOffset, edx, ecx); |
| 2912 | |
| 2913 | __ bind(&done); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2914 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2915 | } |
| 2916 | |
| 2917 | |
| 2918 | void FullCodeGenerator::EmitNumberToString(ZoneList<Expression*>* args) { |
| 2919 | ASSERT_EQ(args->length(), 1); |
| 2920 | |
| 2921 | // Load the argument on the stack and call the stub. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2922 | VisitForStackValue(args->at(0)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2923 | |
| 2924 | NumberToStringStub stub; |
| 2925 | __ CallStub(&stub); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2926 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2927 | } |
| 2928 | |
| 2929 | |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2930 | void FullCodeGenerator::EmitStringCharFromCode(ZoneList<Expression*>* args) { |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2931 | ASSERT(args->length() == 1); |
| 2932 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2933 | VisitForAccumulatorValue(args->at(0)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2934 | |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2935 | Label done; |
| 2936 | StringCharFromCodeGenerator generator(eax, ebx); |
| 2937 | generator.GenerateFast(masm_); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2938 | __ jmp(&done); |
| 2939 | |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2940 | NopRuntimeCallHelper call_helper; |
| 2941 | generator.GenerateSlow(masm_, call_helper); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2942 | |
| 2943 | __ bind(&done); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2944 | context()->Plug(ebx); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2945 | } |
| 2946 | |
| 2947 | |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2948 | void FullCodeGenerator::EmitStringCharCodeAt(ZoneList<Expression*>* args) { |
| 2949 | ASSERT(args->length() == 2); |
| 2950 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2951 | VisitForStackValue(args->at(0)); |
| 2952 | VisitForAccumulatorValue(args->at(1)); |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2953 | |
| 2954 | Register object = ebx; |
| 2955 | Register index = eax; |
| 2956 | Register scratch = ecx; |
| 2957 | Register result = edx; |
| 2958 | |
| 2959 | __ pop(object); |
| 2960 | |
| 2961 | Label need_conversion; |
| 2962 | Label index_out_of_range; |
| 2963 | Label done; |
| 2964 | StringCharCodeAtGenerator generator(object, |
| 2965 | index, |
| 2966 | scratch, |
| 2967 | result, |
| 2968 | &need_conversion, |
| 2969 | &need_conversion, |
| 2970 | &index_out_of_range, |
| 2971 | STRING_INDEX_IS_NUMBER); |
| 2972 | generator.GenerateFast(masm_); |
| 2973 | __ jmp(&done); |
| 2974 | |
| 2975 | __ bind(&index_out_of_range); |
| 2976 | // When the index is out of range, the spec requires us to return |
| 2977 | // NaN. |
| 2978 | __ Set(result, Immediate(Factory::nan_value())); |
| 2979 | __ jmp(&done); |
| 2980 | |
| 2981 | __ bind(&need_conversion); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2982 | // Move the undefined value into the result register, which will |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2983 | // trigger conversion. |
| 2984 | __ Set(result, Immediate(Factory::undefined_value())); |
| 2985 | __ jmp(&done); |
| 2986 | |
| 2987 | NopRuntimeCallHelper call_helper; |
| 2988 | generator.GenerateSlow(masm_, call_helper); |
| 2989 | |
| 2990 | __ bind(&done); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2991 | context()->Plug(result); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 2992 | } |
| 2993 | |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 2994 | |
| 2995 | void FullCodeGenerator::EmitStringCharAt(ZoneList<Expression*>* args) { |
| 2996 | ASSERT(args->length() == 2); |
| 2997 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2998 | VisitForStackValue(args->at(0)); |
| 2999 | VisitForAccumulatorValue(args->at(1)); |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 3000 | |
| 3001 | Register object = ebx; |
| 3002 | Register index = eax; |
| 3003 | Register scratch1 = ecx; |
| 3004 | Register scratch2 = edx; |
| 3005 | Register result = eax; |
| 3006 | |
| 3007 | __ pop(object); |
| 3008 | |
| 3009 | Label need_conversion; |
| 3010 | Label index_out_of_range; |
| 3011 | Label done; |
| 3012 | StringCharAtGenerator generator(object, |
| 3013 | index, |
| 3014 | scratch1, |
| 3015 | scratch2, |
| 3016 | result, |
| 3017 | &need_conversion, |
| 3018 | &need_conversion, |
| 3019 | &index_out_of_range, |
| 3020 | STRING_INDEX_IS_NUMBER); |
| 3021 | generator.GenerateFast(masm_); |
| 3022 | __ jmp(&done); |
| 3023 | |
| 3024 | __ bind(&index_out_of_range); |
| 3025 | // When the index is out of range, the spec requires us to return |
| 3026 | // the empty string. |
| 3027 | __ Set(result, Immediate(Factory::empty_string())); |
| 3028 | __ jmp(&done); |
| 3029 | |
| 3030 | __ bind(&need_conversion); |
| 3031 | // Move smi zero into the result register, which will trigger |
| 3032 | // conversion. |
| 3033 | __ Set(result, Immediate(Smi::FromInt(0))); |
| 3034 | __ jmp(&done); |
| 3035 | |
| 3036 | NopRuntimeCallHelper call_helper; |
| 3037 | generator.GenerateSlow(masm_, call_helper); |
| 3038 | |
| 3039 | __ bind(&done); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3040 | context()->Plug(result); |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 3041 | } |
| 3042 | |
| 3043 | |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3044 | void FullCodeGenerator::EmitStringAdd(ZoneList<Expression*>* args) { |
| 3045 | ASSERT_EQ(2, args->length()); |
| 3046 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3047 | VisitForStackValue(args->at(0)); |
| 3048 | VisitForStackValue(args->at(1)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3049 | |
| 3050 | StringAddStub stub(NO_STRING_ADD_FLAGS); |
| 3051 | __ CallStub(&stub); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3052 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3053 | } |
| 3054 | |
| 3055 | |
| 3056 | void FullCodeGenerator::EmitStringCompare(ZoneList<Expression*>* args) { |
| 3057 | ASSERT_EQ(2, args->length()); |
| 3058 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3059 | VisitForStackValue(args->at(0)); |
| 3060 | VisitForStackValue(args->at(1)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3061 | |
| 3062 | StringCompareStub stub; |
| 3063 | __ CallStub(&stub); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3064 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3065 | } |
| 3066 | |
| 3067 | |
| 3068 | void FullCodeGenerator::EmitMathSin(ZoneList<Expression*>* args) { |
| 3069 | // Load the argument on the stack and call the stub. |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 3070 | TranscendentalCacheStub stub(TranscendentalCache::SIN, |
| 3071 | TranscendentalCacheStub::TAGGED); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3072 | ASSERT(args->length() == 1); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3073 | VisitForStackValue(args->at(0)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3074 | __ CallStub(&stub); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3075 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3076 | } |
| 3077 | |
| 3078 | |
| 3079 | void FullCodeGenerator::EmitMathCos(ZoneList<Expression*>* args) { |
| 3080 | // Load the argument on the stack and call the stub. |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 3081 | TranscendentalCacheStub stub(TranscendentalCache::COS, |
| 3082 | TranscendentalCacheStub::TAGGED); |
| 3083 | ASSERT(args->length() == 1); |
| 3084 | VisitForStackValue(args->at(0)); |
| 3085 | __ CallStub(&stub); |
| 3086 | context()->Plug(eax); |
| 3087 | } |
| 3088 | |
| 3089 | |
| 3090 | void FullCodeGenerator::EmitMathLog(ZoneList<Expression*>* args) { |
| 3091 | // Load the argument on the stack and call the stub. |
| 3092 | TranscendentalCacheStub stub(TranscendentalCache::LOG, |
| 3093 | TranscendentalCacheStub::TAGGED); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3094 | ASSERT(args->length() == 1); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3095 | VisitForStackValue(args->at(0)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3096 | __ CallStub(&stub); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3097 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3098 | } |
| 3099 | |
| 3100 | |
| 3101 | void FullCodeGenerator::EmitMathSqrt(ZoneList<Expression*>* args) { |
| 3102 | // Load the argument on the stack and call the runtime function. |
| 3103 | ASSERT(args->length() == 1); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3104 | VisitForStackValue(args->at(0)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3105 | __ CallRuntime(Runtime::kMath_sqrt, 1); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3106 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3107 | } |
| 3108 | |
| 3109 | |
| 3110 | void FullCodeGenerator::EmitCallFunction(ZoneList<Expression*>* args) { |
| 3111 | ASSERT(args->length() >= 2); |
| 3112 | |
| 3113 | int arg_count = args->length() - 2; // For receiver and function. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3114 | VisitForStackValue(args->at(0)); // Receiver. |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3115 | for (int i = 0; i < arg_count; i++) { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3116 | VisitForStackValue(args->at(i + 1)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3117 | } |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3118 | VisitForAccumulatorValue(args->at(arg_count + 1)); // Function. |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3119 | |
| 3120 | // InvokeFunction requires function in edi. Move it in there. |
| 3121 | if (!result_register().is(edi)) __ mov(edi, result_register()); |
| 3122 | ParameterCount count(arg_count); |
| 3123 | __ InvokeFunction(edi, count, CALL_FUNCTION); |
| 3124 | __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3125 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3126 | } |
| 3127 | |
| 3128 | |
| 3129 | void FullCodeGenerator::EmitRegExpConstructResult(ZoneList<Expression*>* args) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 3130 | // Load the arguments on the stack and call the stub. |
| 3131 | RegExpConstructResultStub stub; |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3132 | ASSERT(args->length() == 3); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3133 | VisitForStackValue(args->at(0)); |
| 3134 | VisitForStackValue(args->at(1)); |
| 3135 | VisitForStackValue(args->at(2)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 3136 | __ CallStub(&stub); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3137 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3138 | } |
| 3139 | |
| 3140 | |
| 3141 | void FullCodeGenerator::EmitSwapElements(ZoneList<Expression*>* args) { |
| 3142 | ASSERT(args->length() == 3); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3143 | VisitForStackValue(args->at(0)); |
| 3144 | VisitForStackValue(args->at(1)); |
| 3145 | VisitForStackValue(args->at(2)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 3146 | Label done; |
| 3147 | Label slow_case; |
| 3148 | Register object = eax; |
| 3149 | Register index_1 = ebx; |
| 3150 | Register index_2 = ecx; |
| 3151 | Register elements = edi; |
| 3152 | Register temp = edx; |
| 3153 | __ mov(object, Operand(esp, 2 * kPointerSize)); |
| 3154 | // Fetch the map and check if array is in fast case. |
| 3155 | // Check that object doesn't require security checks and |
| 3156 | // has no indexed interceptor. |
| 3157 | __ CmpObjectType(object, FIRST_JS_OBJECT_TYPE, temp); |
| 3158 | __ j(below, &slow_case); |
| 3159 | __ test_b(FieldOperand(temp, Map::kBitFieldOffset), |
| 3160 | KeyedLoadIC::kSlowCaseBitFieldMask); |
| 3161 | __ j(not_zero, &slow_case); |
| 3162 | |
| 3163 | // Check the object's elements are in fast case and writable. |
| 3164 | __ mov(elements, FieldOperand(object, JSObject::kElementsOffset)); |
| 3165 | __ cmp(FieldOperand(elements, HeapObject::kMapOffset), |
| 3166 | Immediate(Factory::fixed_array_map())); |
| 3167 | __ j(not_equal, &slow_case); |
| 3168 | |
| 3169 | // Check that both indices are smis. |
| 3170 | __ mov(index_1, Operand(esp, 1 * kPointerSize)); |
| 3171 | __ mov(index_2, Operand(esp, 0)); |
| 3172 | __ mov(temp, index_1); |
| 3173 | __ or_(temp, Operand(index_2)); |
| 3174 | __ test(temp, Immediate(kSmiTagMask)); |
| 3175 | __ j(not_zero, &slow_case); |
| 3176 | |
| 3177 | // Check that both indices are valid. |
| 3178 | __ mov(temp, FieldOperand(object, JSArray::kLengthOffset)); |
| 3179 | __ cmp(temp, Operand(index_1)); |
| 3180 | __ j(below_equal, &slow_case); |
| 3181 | __ cmp(temp, Operand(index_2)); |
| 3182 | __ j(below_equal, &slow_case); |
| 3183 | |
| 3184 | // Bring addresses into index1 and index2. |
| 3185 | __ lea(index_1, CodeGenerator::FixedArrayElementOperand(elements, index_1)); |
| 3186 | __ lea(index_2, CodeGenerator::FixedArrayElementOperand(elements, index_2)); |
| 3187 | |
| 3188 | // Swap elements. Use object and temp as scratch registers. |
| 3189 | __ mov(object, Operand(index_1, 0)); |
| 3190 | __ mov(temp, Operand(index_2, 0)); |
| 3191 | __ mov(Operand(index_2, 0), object); |
| 3192 | __ mov(Operand(index_1, 0), temp); |
| 3193 | |
| 3194 | Label new_space; |
| 3195 | __ InNewSpace(elements, temp, equal, &new_space); |
| 3196 | |
| 3197 | __ mov(object, elements); |
| 3198 | __ RecordWriteHelper(object, index_1, temp); |
| 3199 | __ RecordWriteHelper(elements, index_2, temp); |
| 3200 | |
| 3201 | __ bind(&new_space); |
| 3202 | // We are done. Drop elements from the stack, and return undefined. |
| 3203 | __ add(Operand(esp), Immediate(3 * kPointerSize)); |
| 3204 | __ mov(eax, Factory::undefined_value()); |
| 3205 | __ jmp(&done); |
| 3206 | |
| 3207 | __ bind(&slow_case); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3208 | __ CallRuntime(Runtime::kSwapElements, 3); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 3209 | |
| 3210 | __ bind(&done); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3211 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3212 | } |
| 3213 | |
| 3214 | |
| 3215 | void FullCodeGenerator::EmitGetFromCache(ZoneList<Expression*>* args) { |
| 3216 | ASSERT_EQ(2, args->length()); |
| 3217 | |
| 3218 | ASSERT_NE(NULL, args->at(0)->AsLiteral()); |
| 3219 | int cache_id = Smi::cast(*(args->at(0)->AsLiteral()->handle()))->value(); |
| 3220 | |
| 3221 | Handle<FixedArray> jsfunction_result_caches( |
| 3222 | Top::global_context()->jsfunction_result_caches()); |
| 3223 | if (jsfunction_result_caches->length() <= cache_id) { |
| 3224 | __ Abort("Attempt to use undefined cache."); |
| 3225 | __ mov(eax, Factory::undefined_value()); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3226 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3227 | return; |
| 3228 | } |
| 3229 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3230 | VisitForAccumulatorValue(args->at(1)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3231 | |
| 3232 | Register key = eax; |
| 3233 | Register cache = ebx; |
| 3234 | Register tmp = ecx; |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 3235 | __ mov(cache, ContextOperand(esi, Context::GLOBAL_INDEX)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3236 | __ mov(cache, |
| 3237 | FieldOperand(cache, GlobalObject::kGlobalContextOffset)); |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 3238 | __ mov(cache, ContextOperand(cache, Context::JSFUNCTION_RESULT_CACHES_INDEX)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3239 | __ mov(cache, |
| 3240 | FieldOperand(cache, FixedArray::OffsetOfElementAt(cache_id))); |
| 3241 | |
| 3242 | Label done, not_found; |
| 3243 | // tmp now holds finger offset as a smi. |
| 3244 | ASSERT(kSmiTag == 0 && kSmiTagSize == 1); |
| 3245 | __ mov(tmp, FieldOperand(cache, JSFunctionResultCache::kFingerOffset)); |
| 3246 | __ cmp(key, CodeGenerator::FixedArrayElementOperand(cache, tmp)); |
| 3247 | __ j(not_equal, ¬_found); |
| 3248 | |
| 3249 | __ mov(eax, CodeGenerator::FixedArrayElementOperand(cache, tmp, 1)); |
| 3250 | __ jmp(&done); |
| 3251 | |
| 3252 | __ bind(¬_found); |
| 3253 | // Call runtime to perform the lookup. |
| 3254 | __ push(cache); |
| 3255 | __ push(key); |
| 3256 | __ CallRuntime(Runtime::kGetFromCache, 2); |
| 3257 | |
| 3258 | __ bind(&done); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3259 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3260 | } |
| 3261 | |
| 3262 | |
Ben Murdoch | bb769b2 | 2010-08-11 14:56:33 +0100 | [diff] [blame] | 3263 | void FullCodeGenerator::EmitIsRegExpEquivalent(ZoneList<Expression*>* args) { |
| 3264 | ASSERT_EQ(2, args->length()); |
| 3265 | |
| 3266 | Register right = eax; |
| 3267 | Register left = ebx; |
| 3268 | Register tmp = ecx; |
| 3269 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3270 | VisitForStackValue(args->at(0)); |
| 3271 | VisitForAccumulatorValue(args->at(1)); |
Ben Murdoch | bb769b2 | 2010-08-11 14:56:33 +0100 | [diff] [blame] | 3272 | __ pop(left); |
| 3273 | |
| 3274 | Label done, fail, ok; |
| 3275 | __ cmp(left, Operand(right)); |
| 3276 | __ j(equal, &ok); |
| 3277 | // Fail if either is a non-HeapObject. |
| 3278 | __ mov(tmp, left); |
| 3279 | __ and_(Operand(tmp), right); |
| 3280 | __ test(Operand(tmp), Immediate(kSmiTagMask)); |
| 3281 | __ j(zero, &fail); |
| 3282 | __ CmpObjectType(left, JS_REGEXP_TYPE, tmp); |
| 3283 | __ j(not_equal, &fail); |
| 3284 | __ cmp(tmp, FieldOperand(right, HeapObject::kMapOffset)); |
| 3285 | __ j(not_equal, &fail); |
| 3286 | __ mov(tmp, FieldOperand(left, JSRegExp::kDataOffset)); |
| 3287 | __ cmp(tmp, FieldOperand(right, JSRegExp::kDataOffset)); |
| 3288 | __ j(equal, &ok); |
| 3289 | __ bind(&fail); |
| 3290 | __ mov(eax, Immediate(Factory::false_value())); |
| 3291 | __ jmp(&done); |
| 3292 | __ bind(&ok); |
| 3293 | __ mov(eax, Immediate(Factory::true_value())); |
| 3294 | __ bind(&done); |
| 3295 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3296 | context()->Plug(eax); |
Ben Murdoch | bb769b2 | 2010-08-11 14:56:33 +0100 | [diff] [blame] | 3297 | } |
| 3298 | |
| 3299 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3300 | void FullCodeGenerator::EmitHasCachedArrayIndex(ZoneList<Expression*>* args) { |
| 3301 | ASSERT(args->length() == 1); |
| 3302 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3303 | VisitForAccumulatorValue(args->at(0)); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3304 | |
| 3305 | if (FLAG_debug_code) { |
| 3306 | __ AbortIfNotString(eax); |
| 3307 | } |
| 3308 | |
| 3309 | Label materialize_true, materialize_false; |
| 3310 | Label* if_true = NULL; |
| 3311 | Label* if_false = NULL; |
| 3312 | Label* fall_through = NULL; |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3313 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 3314 | &if_true, &if_false, &fall_through); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3315 | |
| 3316 | __ test(FieldOperand(eax, String::kHashFieldOffset), |
| 3317 | Immediate(String::kContainsCachedArrayIndexMask)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 3318 | PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3319 | Split(zero, if_true, if_false, fall_through); |
| 3320 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3321 | context()->Plug(if_true, if_false); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3322 | } |
| 3323 | |
| 3324 | |
| 3325 | void FullCodeGenerator::EmitGetCachedArrayIndex(ZoneList<Expression*>* args) { |
| 3326 | ASSERT(args->length() == 1); |
| 3327 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3328 | VisitForAccumulatorValue(args->at(0)); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3329 | |
| 3330 | if (FLAG_debug_code) { |
| 3331 | __ AbortIfNotString(eax); |
| 3332 | } |
| 3333 | |
| 3334 | __ mov(eax, FieldOperand(eax, String::kHashFieldOffset)); |
| 3335 | __ IndexFromHash(eax, eax); |
| 3336 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3337 | context()->Plug(eax); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3338 | } |
| 3339 | |
| 3340 | |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 3341 | void FullCodeGenerator::EmitFastAsciiArrayJoin(ZoneList<Expression*>* args) { |
| 3342 | Label bailout; |
| 3343 | Label done; |
| 3344 | |
| 3345 | ASSERT(args->length() == 2); |
| 3346 | // We will leave the separator on the stack until the end of the function. |
| 3347 | VisitForStackValue(args->at(1)); |
| 3348 | // Load this to eax (= array) |
| 3349 | VisitForAccumulatorValue(args->at(0)); |
| 3350 | |
| 3351 | // All aliases of the same register have disjoint lifetimes. |
| 3352 | Register array = eax; |
| 3353 | Register result_pos = no_reg; |
| 3354 | |
| 3355 | Register index = edi; |
| 3356 | |
| 3357 | Register current_string_length = ecx; // Will be ecx when live. |
| 3358 | |
| 3359 | Register current_string = edx; |
| 3360 | |
| 3361 | Register scratch = ebx; |
| 3362 | |
| 3363 | Register scratch_2 = esi; |
| 3364 | Register new_padding_chars = scratch_2; |
| 3365 | |
| 3366 | Operand separator = Operand(esp, 4 * kPointerSize); // Already pushed. |
| 3367 | Operand elements = Operand(esp, 3 * kPointerSize); |
| 3368 | Operand result = Operand(esp, 2 * kPointerSize); |
| 3369 | Operand padding_chars = Operand(esp, 1 * kPointerSize); |
| 3370 | Operand array_length = Operand(esp, 0); |
| 3371 | __ sub(Operand(esp), Immediate(4 * kPointerSize)); |
| 3372 | |
| 3373 | |
| 3374 | // Check that eax is a JSArray |
| 3375 | __ test(array, Immediate(kSmiTagMask)); |
| 3376 | __ j(zero, &bailout); |
| 3377 | __ CmpObjectType(array, JS_ARRAY_TYPE, scratch); |
| 3378 | __ j(not_equal, &bailout); |
| 3379 | |
| 3380 | // Check that the array has fast elements. |
| 3381 | __ test_b(FieldOperand(scratch, Map::kBitField2Offset), |
| 3382 | 1 << Map::kHasFastElements); |
| 3383 | __ j(zero, &bailout); |
| 3384 | |
| 3385 | // If the array is empty, return the empty string. |
| 3386 | __ mov(scratch, FieldOperand(array, JSArray::kLengthOffset)); |
| 3387 | __ sar(scratch, 1); |
| 3388 | Label non_trivial; |
| 3389 | __ j(not_zero, &non_trivial); |
| 3390 | __ mov(result, Factory::empty_string()); |
| 3391 | __ jmp(&done); |
| 3392 | |
| 3393 | __ bind(&non_trivial); |
| 3394 | __ mov(array_length, scratch); |
| 3395 | |
| 3396 | __ mov(scratch, FieldOperand(array, JSArray::kElementsOffset)); |
| 3397 | __ mov(elements, scratch); |
| 3398 | |
| 3399 | // End of array's live range. |
| 3400 | result_pos = array; |
| 3401 | array = no_reg; |
| 3402 | |
| 3403 | |
| 3404 | // Check that the separator is a flat ascii string. |
| 3405 | __ mov(current_string, separator); |
| 3406 | __ test(current_string, Immediate(kSmiTagMask)); |
| 3407 | __ j(zero, &bailout); |
| 3408 | __ mov(scratch, FieldOperand(current_string, HeapObject::kMapOffset)); |
| 3409 | __ mov_b(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset)); |
| 3410 | __ and_(scratch, Immediate( |
| 3411 | kIsNotStringMask | kStringEncodingMask | kStringRepresentationMask)); |
| 3412 | __ cmp(scratch, kStringTag | kAsciiStringTag | kSeqStringTag); |
| 3413 | __ j(not_equal, &bailout); |
| 3414 | // If the separator is the empty string, replace it with NULL. |
| 3415 | // The test for NULL is quicker than the empty string test, in a loop. |
| 3416 | __ cmp(FieldOperand(current_string, SeqAsciiString::kLengthOffset), |
| 3417 | Immediate(0)); |
| 3418 | Label separator_checked; |
| 3419 | __ j(not_zero, &separator_checked); |
| 3420 | __ mov(separator, Immediate(0)); |
| 3421 | __ bind(&separator_checked); |
| 3422 | |
| 3423 | // Check that elements[0] is a flat ascii string, and copy it in new space. |
| 3424 | __ mov(scratch, elements); |
| 3425 | __ mov(current_string, FieldOperand(scratch, FixedArray::kHeaderSize)); |
| 3426 | __ test(current_string, Immediate(kSmiTagMask)); |
| 3427 | __ j(zero, &bailout); |
| 3428 | __ mov(scratch, FieldOperand(current_string, HeapObject::kMapOffset)); |
| 3429 | __ mov_b(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset)); |
| 3430 | __ and_(scratch, Immediate( |
| 3431 | kIsNotStringMask | kStringEncodingMask | kStringRepresentationMask)); |
| 3432 | __ cmp(scratch, kStringTag | kAsciiStringTag | kSeqStringTag); |
| 3433 | __ j(not_equal, &bailout); |
| 3434 | |
| 3435 | // Allocate space to copy it. Round up the size to the alignment granularity. |
| 3436 | __ mov(current_string_length, |
| 3437 | FieldOperand(current_string, String::kLengthOffset)); |
| 3438 | __ shr(current_string_length, 1); |
| 3439 | |
| 3440 | // Live registers and stack values: |
| 3441 | // current_string_length: length of elements[0]. |
| 3442 | |
| 3443 | // New string result in new space = elements[0] |
| 3444 | __ AllocateAsciiString(result_pos, current_string_length, scratch_2, |
| 3445 | index, no_reg, &bailout); |
| 3446 | __ mov(result, result_pos); |
| 3447 | |
| 3448 | // Adjust current_string_length to include padding bytes at end of string. |
| 3449 | // Keep track of the number of padding bytes. |
| 3450 | __ mov(new_padding_chars, current_string_length); |
| 3451 | __ add(Operand(current_string_length), Immediate(kObjectAlignmentMask)); |
| 3452 | __ and_(Operand(current_string_length), Immediate(~kObjectAlignmentMask)); |
| 3453 | __ sub(new_padding_chars, Operand(current_string_length)); |
| 3454 | __ neg(new_padding_chars); |
| 3455 | __ mov(padding_chars, new_padding_chars); |
| 3456 | |
| 3457 | Label copy_loop_1_done; |
| 3458 | Label copy_loop_1; |
| 3459 | __ test(current_string_length, Operand(current_string_length)); |
| 3460 | __ j(zero, ©_loop_1_done); |
| 3461 | __ bind(©_loop_1); |
| 3462 | __ sub(Operand(current_string_length), Immediate(kPointerSize)); |
| 3463 | __ mov(scratch, FieldOperand(current_string, current_string_length, |
| 3464 | times_1, SeqAsciiString::kHeaderSize)); |
| 3465 | __ mov(FieldOperand(result_pos, current_string_length, |
| 3466 | times_1, SeqAsciiString::kHeaderSize), |
| 3467 | scratch); |
| 3468 | __ j(not_zero, ©_loop_1); |
| 3469 | __ bind(©_loop_1_done); |
| 3470 | |
| 3471 | __ mov(index, Immediate(1)); |
| 3472 | // Loop condition: while (index < length). |
| 3473 | Label loop; |
| 3474 | __ bind(&loop); |
| 3475 | __ cmp(index, array_length); |
| 3476 | __ j(greater_equal, &done); |
| 3477 | |
| 3478 | // If the separator is the empty string, signalled by NULL, skip it. |
| 3479 | Label separator_done; |
| 3480 | __ mov(current_string, separator); |
| 3481 | __ test(current_string, Operand(current_string)); |
| 3482 | __ j(zero, &separator_done); |
| 3483 | |
| 3484 | // Append separator to result. It is known to be a flat ascii string. |
| 3485 | __ AppendStringToTopOfNewSpace(current_string, current_string_length, |
| 3486 | result_pos, scratch, scratch_2, result, |
| 3487 | padding_chars, &bailout); |
| 3488 | __ bind(&separator_done); |
| 3489 | |
| 3490 | // Add next element of array to the end of the result. |
| 3491 | // Get current_string = array[index]. |
| 3492 | __ mov(scratch, elements); |
| 3493 | __ mov(current_string, FieldOperand(scratch, index, |
| 3494 | times_pointer_size, |
| 3495 | FixedArray::kHeaderSize)); |
| 3496 | // If current != flat ascii string drop result, return undefined. |
| 3497 | __ test(current_string, Immediate(kSmiTagMask)); |
| 3498 | __ j(zero, &bailout); |
| 3499 | __ mov(scratch, FieldOperand(current_string, HeapObject::kMapOffset)); |
| 3500 | __ mov_b(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset)); |
| 3501 | __ and_(scratch, Immediate( |
| 3502 | kIsNotStringMask | kStringEncodingMask | kStringRepresentationMask)); |
| 3503 | __ cmp(scratch, kStringTag | kAsciiStringTag | kSeqStringTag); |
| 3504 | __ j(not_equal, &bailout); |
| 3505 | |
| 3506 | // Append current to the result. |
| 3507 | __ AppendStringToTopOfNewSpace(current_string, current_string_length, |
| 3508 | result_pos, scratch, scratch_2, result, |
| 3509 | padding_chars, &bailout); |
| 3510 | __ add(Operand(index), Immediate(1)); |
| 3511 | __ jmp(&loop); // End while (index < length). |
| 3512 | |
| 3513 | __ bind(&bailout); |
| 3514 | __ mov(result, Factory::undefined_value()); |
| 3515 | __ bind(&done); |
| 3516 | __ mov(eax, result); |
| 3517 | // Drop temp values from the stack, and restore context register. |
| 3518 | __ add(Operand(esp), Immediate(5 * kPointerSize)); |
| 3519 | |
| 3520 | __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
| 3521 | context()->Plug(eax); |
| 3522 | } |
| 3523 | |
| 3524 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 3525 | void FullCodeGenerator::VisitCallRuntime(CallRuntime* expr) { |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3526 | Handle<String> name = expr->name(); |
| 3527 | if (name->length() > 0 && name->Get(0) == '_') { |
| 3528 | Comment cmnt(masm_, "[ InlineRuntimeCall"); |
| 3529 | EmitInlineRuntimeCall(expr); |
| 3530 | return; |
| 3531 | } |
| 3532 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 3533 | Comment cmnt(masm_, "[ CallRuntime"); |
| 3534 | ZoneList<Expression*>* args = expr->arguments(); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 3535 | |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3536 | if (expr->is_jsruntime()) { |
| 3537 | // Prepare for calling JS runtime function. |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 3538 | __ mov(eax, GlobalObjectOperand()); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3539 | __ push(FieldOperand(eax, GlobalObject::kBuiltinsOffset)); |
| 3540 | } |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 3541 | |
| 3542 | // Push the arguments ("left-to-right"). |
| 3543 | int arg_count = args->length(); |
| 3544 | for (int i = 0; i < arg_count; i++) { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3545 | VisitForStackValue(args->at(i)); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 3546 | } |
| 3547 | |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3548 | if (expr->is_jsruntime()) { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3549 | // Call the JS runtime function via a call IC. |
| 3550 | __ Set(ecx, Immediate(expr->name())); |
| 3551 | InLoopFlag in_loop = (loop_depth() > 0) ? IN_LOOP : NOT_IN_LOOP; |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 3552 | Handle<Code> ic = StubCache::ComputeCallInitialize(arg_count, in_loop); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3553 | EmitCallIC(ic, RelocInfo::CODE_TARGET); |
| 3554 | // Restore context register. |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3555 | __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 3556 | } else { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3557 | // Call the C runtime function. |
| 3558 | __ CallRuntime(expr->function(), arg_count); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3559 | } |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3560 | context()->Plug(eax); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3561 | } |
| 3562 | |
| 3563 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 3564 | void FullCodeGenerator::VisitUnaryOperation(UnaryOperation* expr) { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3565 | switch (expr->op()) { |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3566 | case Token::DELETE: { |
| 3567 | Comment cmnt(masm_, "[ UnaryOperation (DELETE)"); |
| 3568 | Property* prop = expr->expression()->AsProperty(); |
| 3569 | Variable* var = expr->expression()->AsVariableProxy()->AsVariable(); |
| 3570 | if (prop == NULL && var == NULL) { |
| 3571 | // Result of deleting non-property, non-variable reference is true. |
| 3572 | // The subexpression may have side effects. |
| 3573 | VisitForEffect(expr->expression()); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3574 | context()->Plug(true); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3575 | } else if (var != NULL && |
| 3576 | !var->is_global() && |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3577 | var->AsSlot() != NULL && |
| 3578 | var->AsSlot()->type() != Slot::LOOKUP) { |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3579 | // Result of deleting non-global, non-dynamic variables is false. |
| 3580 | // The subexpression does not have side effects. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3581 | context()->Plug(false); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3582 | } else { |
| 3583 | // Property or variable reference. Call the delete builtin with |
| 3584 | // object and property name as arguments. |
| 3585 | if (prop != NULL) { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3586 | VisitForStackValue(prop->obj()); |
| 3587 | VisitForStackValue(prop->key()); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3588 | } else if (var->is_global()) { |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 3589 | __ push(GlobalObjectOperand()); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3590 | __ push(Immediate(var->name())); |
| 3591 | } else { |
| 3592 | // Non-global variable. Call the runtime to look up the context |
| 3593 | // where the variable was introduced. |
| 3594 | __ push(context_register()); |
| 3595 | __ push(Immediate(var->name())); |
| 3596 | __ CallRuntime(Runtime::kLookupContext, 2); |
| 3597 | __ push(eax); |
| 3598 | __ push(Immediate(var->name())); |
| 3599 | } |
| 3600 | __ InvokeBuiltin(Builtins::DELETE, CALL_FUNCTION); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3601 | context()->Plug(eax); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3602 | } |
| 3603 | break; |
| 3604 | } |
| 3605 | |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3606 | case Token::VOID: { |
| 3607 | Comment cmnt(masm_, "[ UnaryOperation (VOID)"); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3608 | VisitForEffect(expr->expression()); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3609 | context()->Plug(Factory::undefined_value()); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3610 | break; |
| 3611 | } |
| 3612 | |
| 3613 | case Token::NOT: { |
| 3614 | Comment cmnt(masm_, "[ UnaryOperation (NOT)"); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3615 | |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3616 | Label materialize_true, materialize_false; |
| 3617 | Label* if_true = NULL; |
| 3618 | Label* if_false = NULL; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3619 | Label* fall_through = NULL; |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3620 | // Notice that the labels are swapped. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3621 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 3622 | &if_false, &if_true, &fall_through); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 3623 | if (context()->IsTest()) ForwardBailoutToChild(expr); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3624 | VisitForControl(expr->expression(), if_true, if_false, fall_through); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3625 | context()->Plug(if_false, if_true); // Labels swapped. |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3626 | break; |
| 3627 | } |
| 3628 | |
| 3629 | case Token::TYPEOF: { |
| 3630 | Comment cmnt(masm_, "[ UnaryOperation (TYPEOF)"); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3631 | { StackValueContext context(this); |
| 3632 | VisitForTypeofValue(expr->expression()); |
| 3633 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3634 | __ CallRuntime(Runtime::kTypeof, 1); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3635 | context()->Plug(eax); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3636 | break; |
| 3637 | } |
| 3638 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 3639 | case Token::ADD: { |
| 3640 | Comment cmt(masm_, "[ UnaryOperation (ADD)"); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3641 | VisitForAccumulatorValue(expr->expression()); |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 3642 | Label no_conversion; |
| 3643 | __ test(result_register(), Immediate(kSmiTagMask)); |
| 3644 | __ j(zero, &no_conversion); |
| 3645 | __ push(result_register()); |
| 3646 | __ InvokeBuiltin(Builtins::TO_NUMBER, CALL_FUNCTION); |
| 3647 | __ bind(&no_conversion); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3648 | context()->Plug(result_register()); |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 3649 | break; |
| 3650 | } |
| 3651 | |
Leon Clarke | 4515c47 | 2010-02-03 11:58:03 +0000 | [diff] [blame] | 3652 | case Token::SUB: { |
| 3653 | Comment cmt(masm_, "[ UnaryOperation (SUB)"); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3654 | bool can_overwrite = expr->expression()->ResultOverwriteAllowed(); |
Leon Clarke | ac95265 | 2010-07-15 11:15:24 +0100 | [diff] [blame] | 3655 | UnaryOverwriteMode overwrite = |
| 3656 | can_overwrite ? UNARY_OVERWRITE : UNARY_NO_OVERWRITE; |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3657 | GenericUnaryOpStub stub(Token::SUB, overwrite, NO_UNARY_FLAGS); |
Leon Clarke | 4515c47 | 2010-02-03 11:58:03 +0000 | [diff] [blame] | 3658 | // GenericUnaryOpStub expects the argument to be in the |
| 3659 | // accumulator register eax. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3660 | VisitForAccumulatorValue(expr->expression()); |
Leon Clarke | 4515c47 | 2010-02-03 11:58:03 +0000 | [diff] [blame] | 3661 | __ CallStub(&stub); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3662 | context()->Plug(eax); |
Leon Clarke | 4515c47 | 2010-02-03 11:58:03 +0000 | [diff] [blame] | 3663 | break; |
| 3664 | } |
| 3665 | |
| 3666 | case Token::BIT_NOT: { |
| 3667 | Comment cmt(masm_, "[ UnaryOperation (BIT_NOT)"); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3668 | // The generic unary operation stub expects the argument to be |
| 3669 | // in the accumulator register eax. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3670 | VisitForAccumulatorValue(expr->expression()); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3671 | Label done; |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3672 | bool inline_smi_case = ShouldInlineSmiCase(expr->op()); |
| 3673 | if (inline_smi_case) { |
| 3674 | NearLabel call_stub; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3675 | __ test(eax, Immediate(kSmiTagMask)); |
| 3676 | __ j(not_zero, &call_stub); |
| 3677 | __ lea(eax, Operand(eax, kSmiTagMask)); |
| 3678 | __ not_(eax); |
| 3679 | __ jmp(&done); |
| 3680 | __ bind(&call_stub); |
| 3681 | } |
| 3682 | bool overwrite = expr->expression()->ResultOverwriteAllowed(); |
| 3683 | UnaryOverwriteMode mode = |
| 3684 | overwrite ? UNARY_OVERWRITE : UNARY_NO_OVERWRITE; |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3685 | UnaryOpFlags flags = inline_smi_case |
| 3686 | ? NO_UNARY_SMI_CODE_IN_STUB |
| 3687 | : NO_UNARY_FLAGS; |
| 3688 | GenericUnaryOpStub stub(Token::BIT_NOT, mode, flags); |
Leon Clarke | 4515c47 | 2010-02-03 11:58:03 +0000 | [diff] [blame] | 3689 | __ CallStub(&stub); |
Leon Clarke | 4515c47 | 2010-02-03 11:58:03 +0000 | [diff] [blame] | 3690 | __ bind(&done); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3691 | context()->Plug(eax); |
Leon Clarke | 4515c47 | 2010-02-03 11:58:03 +0000 | [diff] [blame] | 3692 | break; |
| 3693 | } |
| 3694 | |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3695 | default: |
| 3696 | UNREACHABLE(); |
| 3697 | } |
| 3698 | } |
| 3699 | |
| 3700 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 3701 | void FullCodeGenerator::VisitCountOperation(CountOperation* expr) { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3702 | Comment cmnt(masm_, "[ CountOperation"); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3703 | SetSourcePosition(expr->position()); |
| 3704 | |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3705 | // Invalid left-hand sides are rewritten to have a 'throw ReferenceError' |
| 3706 | // as the left-hand side. |
| 3707 | if (!expr->expression()->IsValidLeftHandSide()) { |
| 3708 | VisitForEffect(expr->expression()); |
| 3709 | return; |
| 3710 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3711 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3712 | // Expression can only be a property, a global or a (parameter or local) |
| 3713 | // slot. Variables with rewrite to .arguments are treated as KEYED_PROPERTY. |
| 3714 | enum LhsKind { VARIABLE, NAMED_PROPERTY, KEYED_PROPERTY }; |
| 3715 | LhsKind assign_type = VARIABLE; |
| 3716 | Property* prop = expr->expression()->AsProperty(); |
| 3717 | // In case of a property we use the uninitialized expression context |
| 3718 | // of the key to detect a named property. |
| 3719 | if (prop != NULL) { |
| 3720 | assign_type = |
| 3721 | (prop->key()->IsPropertyName()) ? NAMED_PROPERTY : KEYED_PROPERTY; |
| 3722 | } |
| 3723 | |
| 3724 | // Evaluate expression and get value. |
| 3725 | if (assign_type == VARIABLE) { |
| 3726 | ASSERT(expr->expression()->AsVariableProxy()->var() != NULL); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3727 | AccumulatorValueContext context(this); |
| 3728 | EmitVariableLoad(expr->expression()->AsVariableProxy()->var()); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3729 | } else { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3730 | // Reserve space for result of postfix operation. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3731 | if (expr->is_postfix() && !context()->IsEffect()) { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3732 | __ push(Immediate(Smi::FromInt(0))); |
| 3733 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3734 | if (assign_type == NAMED_PROPERTY) { |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 3735 | // Put the object both on the stack and in the accumulator. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3736 | VisitForAccumulatorValue(prop->obj()); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 3737 | __ push(eax); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3738 | EmitNamedPropertyLoad(prop); |
| 3739 | } else { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 3740 | if (prop->is_arguments_access()) { |
| 3741 | VariableProxy* obj_proxy = prop->obj()->AsVariableProxy(); |
| 3742 | __ push(EmitSlotSearch(obj_proxy->var()->AsSlot(), ecx)); |
| 3743 | __ mov(eax, Immediate(prop->key()->AsLiteral()->handle())); |
| 3744 | } else { |
| 3745 | VisitForStackValue(prop->obj()); |
| 3746 | VisitForAccumulatorValue(prop->key()); |
| 3747 | } |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 3748 | __ mov(edx, Operand(esp, 0)); |
| 3749 | __ push(eax); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3750 | EmitKeyedPropertyLoad(prop); |
| 3751 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3752 | } |
| 3753 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 3754 | // We need a second deoptimization point after loading the value |
| 3755 | // in case evaluating the property load my have a side effect. |
| 3756 | PrepareForBailout(expr->increment(), TOS_REG); |
| 3757 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 3758 | // Call ToNumber only if operand is not a smi. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3759 | NearLabel no_conversion; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3760 | if (ShouldInlineSmiCase(expr->op())) { |
| 3761 | __ test(eax, Immediate(kSmiTagMask)); |
| 3762 | __ j(zero, &no_conversion); |
| 3763 | } |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 3764 | __ push(eax); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3765 | __ InvokeBuiltin(Builtins::TO_NUMBER, CALL_FUNCTION); |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 3766 | __ bind(&no_conversion); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3767 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3768 | // Save result for postfix expressions. |
| 3769 | if (expr->is_postfix()) { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3770 | if (!context()->IsEffect()) { |
| 3771 | // Save the result on the stack. If we have a named or keyed property |
| 3772 | // we store the result under the receiver that is currently on top |
| 3773 | // of the stack. |
| 3774 | switch (assign_type) { |
| 3775 | case VARIABLE: |
| 3776 | __ push(eax); |
| 3777 | break; |
| 3778 | case NAMED_PROPERTY: |
| 3779 | __ mov(Operand(esp, kPointerSize), eax); |
| 3780 | break; |
| 3781 | case KEYED_PROPERTY: |
| 3782 | __ mov(Operand(esp, 2 * kPointerSize), eax); |
| 3783 | break; |
| 3784 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3785 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3786 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3787 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 3788 | // Inline smi case if we are in a loop. |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 3789 | NearLabel stub_call, done; |
| 3790 | JumpPatchSite patch_site(masm_); |
| 3791 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3792 | if (ShouldInlineSmiCase(expr->op())) { |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 3793 | if (expr->op() == Token::INC) { |
| 3794 | __ add(Operand(eax), Immediate(Smi::FromInt(1))); |
| 3795 | } else { |
| 3796 | __ sub(Operand(eax), Immediate(Smi::FromInt(1))); |
| 3797 | } |
| 3798 | __ j(overflow, &stub_call); |
| 3799 | // We could eliminate this smi check if we split the code at |
| 3800 | // the first smi check before calling ToNumber. |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 3801 | patch_site.EmitJumpIfSmi(eax, &done); |
| 3802 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 3803 | __ bind(&stub_call); |
| 3804 | // Call stub. Undo operation first. |
| 3805 | if (expr->op() == Token::INC) { |
| 3806 | __ sub(Operand(eax), Immediate(Smi::FromInt(1))); |
| 3807 | } else { |
| 3808 | __ add(Operand(eax), Immediate(Smi::FromInt(1))); |
| 3809 | } |
| 3810 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 3811 | |
| 3812 | // Record position before stub call. |
| 3813 | SetSourcePosition(expr->position()); |
| 3814 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3815 | // Call stub for +1/-1. |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 3816 | __ mov(edx, eax); |
| 3817 | __ mov(eax, Immediate(Smi::FromInt(1))); |
| 3818 | TypeRecordingBinaryOpStub stub(expr->binary_op(), |
| 3819 | NO_OVERWRITE); |
| 3820 | EmitCallIC(stub.GetCode(), &patch_site); |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 3821 | __ bind(&done); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3822 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3823 | // Store the value returned in eax. |
| 3824 | switch (assign_type) { |
| 3825 | case VARIABLE: |
| 3826 | if (expr->is_postfix()) { |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3827 | // Perform the assignment as if via '='. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3828 | { EffectContext context(this); |
| 3829 | EmitVariableAssignment(expr->expression()->AsVariableProxy()->var(), |
| 3830 | Token::ASSIGN); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 3831 | PrepareForBailoutForId(expr->AssignmentId(), TOS_REG); |
| 3832 | context.Plug(eax); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3833 | } |
| 3834 | // For all contexts except EffectContext We have the result on |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3835 | // top of the stack. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3836 | if (!context()->IsEffect()) { |
| 3837 | context()->PlugTOS(); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3838 | } |
| 3839 | } else { |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3840 | // Perform the assignment as if via '='. |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3841 | EmitVariableAssignment(expr->expression()->AsVariableProxy()->var(), |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3842 | Token::ASSIGN); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 3843 | PrepareForBailoutForId(expr->AssignmentId(), TOS_REG); |
| 3844 | context()->Plug(eax); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3845 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3846 | break; |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3847 | case NAMED_PROPERTY: { |
| 3848 | __ mov(ecx, prop->key()->AsLiteral()->handle()); |
Leon Clarke | 4515c47 | 2010-02-03 11:58:03 +0000 | [diff] [blame] | 3849 | __ pop(edx); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3850 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Initialize)); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3851 | EmitCallIC(ic, RelocInfo::CODE_TARGET); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 3852 | PrepareForBailoutForId(expr->AssignmentId(), TOS_REG); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3853 | if (expr->is_postfix()) { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3854 | if (!context()->IsEffect()) { |
| 3855 | context()->PlugTOS(); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3856 | } |
| 3857 | } else { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3858 | context()->Plug(eax); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3859 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3860 | break; |
| 3861 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3862 | case KEYED_PROPERTY: { |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 3863 | __ pop(ecx); |
| 3864 | __ pop(edx); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3865 | Handle<Code> ic(Builtins::builtin(Builtins::KeyedStoreIC_Initialize)); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3866 | EmitCallIC(ic, RelocInfo::CODE_TARGET); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 3867 | PrepareForBailoutForId(expr->AssignmentId(), TOS_REG); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3868 | if (expr->is_postfix()) { |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 3869 | // Result is on the stack |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3870 | if (!context()->IsEffect()) { |
| 3871 | context()->PlugTOS(); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3872 | } |
| 3873 | } else { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3874 | context()->Plug(eax); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 3875 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 3876 | break; |
| 3877 | } |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 3878 | } |
| 3879 | } |
| 3880 | |
| 3881 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3882 | void FullCodeGenerator::VisitForTypeofValue(Expression* expr) { |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3883 | VariableProxy* proxy = expr->AsVariableProxy(); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3884 | ASSERT(!context()->IsEffect()); |
| 3885 | ASSERT(!context()->IsTest()); |
| 3886 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3887 | if (proxy != NULL && !proxy->var()->is_this() && proxy->var()->is_global()) { |
| 3888 | Comment cmnt(masm_, "Global variable"); |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 3889 | __ mov(eax, GlobalObjectOperand()); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3890 | __ mov(ecx, Immediate(proxy->name())); |
| 3891 | Handle<Code> ic(Builtins::builtin(Builtins::LoadIC_Initialize)); |
| 3892 | // Use a regular load, not a contextual load, to avoid a reference |
| 3893 | // error. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3894 | EmitCallIC(ic, RelocInfo::CODE_TARGET); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 3895 | PrepareForBailout(expr, TOS_REG); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3896 | context()->Plug(eax); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3897 | } else if (proxy != NULL && |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3898 | proxy->var()->AsSlot() != NULL && |
| 3899 | proxy->var()->AsSlot()->type() == Slot::LOOKUP) { |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 3900 | Label done, slow; |
| 3901 | |
| 3902 | // Generate code for loading from variables potentially shadowed |
| 3903 | // by eval-introduced variables. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3904 | Slot* slot = proxy->var()->AsSlot(); |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 3905 | EmitDynamicLoadFromSlotFastCase(slot, INSIDE_TYPEOF, &slow, &done); |
| 3906 | |
| 3907 | __ bind(&slow); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3908 | __ push(esi); |
| 3909 | __ push(Immediate(proxy->name())); |
| 3910 | __ CallRuntime(Runtime::kLoadContextSlotNoReferenceError, 2); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 3911 | PrepareForBailout(expr, TOS_REG); |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 3912 | __ bind(&done); |
| 3913 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3914 | context()->Plug(eax); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3915 | } else { |
| 3916 | // This expression cannot throw a reference error at the top level. |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 3917 | context()->HandleExpression(expr); |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 3918 | } |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 3919 | } |
| 3920 | |
| 3921 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3922 | bool FullCodeGenerator::TryLiteralCompare(Token::Value op, |
| 3923 | Expression* left, |
| 3924 | Expression* right, |
| 3925 | Label* if_true, |
| 3926 | Label* if_false, |
| 3927 | Label* fall_through) { |
| 3928 | if (op != Token::EQ && op != Token::EQ_STRICT) return false; |
| 3929 | |
| 3930 | // Check for the pattern: typeof <expression> == <string literal>. |
| 3931 | Literal* right_literal = right->AsLiteral(); |
| 3932 | if (right_literal == NULL) return false; |
| 3933 | Handle<Object> right_literal_value = right_literal->handle(); |
| 3934 | if (!right_literal_value->IsString()) return false; |
| 3935 | UnaryOperation* left_unary = left->AsUnaryOperation(); |
| 3936 | if (left_unary == NULL || left_unary->op() != Token::TYPEOF) return false; |
| 3937 | Handle<String> check = Handle<String>::cast(right_literal_value); |
| 3938 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3939 | { AccumulatorValueContext context(this); |
| 3940 | VisitForTypeofValue(left_unary->expression()); |
| 3941 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 3942 | PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 3943 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3944 | if (check->Equals(Heap::number_symbol())) { |
| 3945 | __ test(eax, Immediate(kSmiTagMask)); |
| 3946 | __ j(zero, if_true); |
| 3947 | __ cmp(FieldOperand(eax, HeapObject::kMapOffset), |
| 3948 | Factory::heap_number_map()); |
| 3949 | Split(equal, if_true, if_false, fall_through); |
| 3950 | } else if (check->Equals(Heap::string_symbol())) { |
| 3951 | __ test(eax, Immediate(kSmiTagMask)); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 3952 | __ j(zero, if_false); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 3953 | // Check for undetectable objects => false. |
| 3954 | __ mov(edx, FieldOperand(eax, HeapObject::kMapOffset)); |
| 3955 | __ movzx_b(ecx, FieldOperand(edx, Map::kBitFieldOffset)); |
| 3956 | __ test(ecx, Immediate(1 << Map::kIsUndetectable)); |
| 3957 | __ j(not_zero, if_false); |
| 3958 | __ CmpInstanceType(edx, FIRST_NONSTRING_TYPE); |
| 3959 | Split(below, if_true, if_false, fall_through); |
| 3960 | } else if (check->Equals(Heap::boolean_symbol())) { |
| 3961 | __ cmp(eax, Factory::true_value()); |
| 3962 | __ j(equal, if_true); |
| 3963 | __ cmp(eax, Factory::false_value()); |
| 3964 | Split(equal, if_true, if_false, fall_through); |
| 3965 | } else if (check->Equals(Heap::undefined_symbol())) { |
| 3966 | __ cmp(eax, Factory::undefined_value()); |
| 3967 | __ j(equal, if_true); |
| 3968 | __ test(eax, Immediate(kSmiTagMask)); |
| 3969 | __ j(zero, if_false); |
| 3970 | // Check for undetectable objects => true. |
| 3971 | __ mov(edx, FieldOperand(eax, HeapObject::kMapOffset)); |
| 3972 | __ movzx_b(ecx, FieldOperand(edx, Map::kBitFieldOffset)); |
| 3973 | __ test(ecx, Immediate(1 << Map::kIsUndetectable)); |
| 3974 | Split(not_zero, if_true, if_false, fall_through); |
| 3975 | } else if (check->Equals(Heap::function_symbol())) { |
| 3976 | __ test(eax, Immediate(kSmiTagMask)); |
| 3977 | __ j(zero, if_false); |
| 3978 | __ CmpObjectType(eax, JS_FUNCTION_TYPE, edx); |
| 3979 | __ j(equal, if_true); |
| 3980 | // Regular expressions => 'function' (they are callable). |
| 3981 | __ CmpInstanceType(edx, JS_REGEXP_TYPE); |
| 3982 | Split(equal, if_true, if_false, fall_through); |
| 3983 | } else if (check->Equals(Heap::object_symbol())) { |
| 3984 | __ test(eax, Immediate(kSmiTagMask)); |
| 3985 | __ j(zero, if_false); |
| 3986 | __ cmp(eax, Factory::null_value()); |
| 3987 | __ j(equal, if_true); |
| 3988 | // Regular expressions => 'function', not 'object'. |
| 3989 | __ CmpObjectType(eax, JS_REGEXP_TYPE, edx); |
| 3990 | __ j(equal, if_false); |
| 3991 | // Check for undetectable objects => false. |
| 3992 | __ movzx_b(ecx, FieldOperand(edx, Map::kBitFieldOffset)); |
| 3993 | __ test(ecx, Immediate(1 << Map::kIsUndetectable)); |
| 3994 | __ j(not_zero, if_false); |
| 3995 | // Check for JS objects => true. |
| 3996 | __ movzx_b(ecx, FieldOperand(edx, Map::kInstanceTypeOffset)); |
| 3997 | __ cmp(ecx, FIRST_JS_OBJECT_TYPE); |
| 3998 | __ j(less, if_false); |
| 3999 | __ cmp(ecx, LAST_JS_OBJECT_TYPE); |
| 4000 | Split(less_equal, if_true, if_false, fall_through); |
| 4001 | } else { |
| 4002 | if (if_false != fall_through) __ jmp(if_false); |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 4003 | } |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 4004 | |
| 4005 | return true; |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 4006 | } |
| 4007 | |
| 4008 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 4009 | void FullCodeGenerator::VisitCompareOperation(CompareOperation* expr) { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4010 | Comment cmnt(masm_, "[ CompareOperation"); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 4011 | SetSourcePosition(expr->position()); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4012 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 4013 | // Always perform the comparison for its control flow. Pack the result |
| 4014 | // into the expression's context after the comparison is performed. |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 4015 | |
| 4016 | Label materialize_true, materialize_false; |
| 4017 | Label* if_true = NULL; |
| 4018 | Label* if_false = NULL; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 4019 | Label* fall_through = NULL; |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 4020 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 4021 | &if_true, &if_false, &fall_through); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 4022 | |
| 4023 | // First we try a fast inlined version of the compare when one of |
| 4024 | // the operands is a literal. |
| 4025 | Token::Value op = expr->op(); |
| 4026 | Expression* left = expr->left(); |
| 4027 | Expression* right = expr->right(); |
| 4028 | if (TryLiteralCompare(op, left, right, if_true, if_false, fall_through)) { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 4029 | context()->Plug(if_true, if_false); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 4030 | return; |
| 4031 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4032 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 4033 | VisitForStackValue(expr->left()); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4034 | switch (expr->op()) { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 4035 | case Token::IN: |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 4036 | VisitForStackValue(expr->right()); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4037 | __ InvokeBuiltin(Builtins::IN, CALL_FUNCTION); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 4038 | PrepareForBailoutBeforeSplit(TOS_REG, false, NULL, NULL); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4039 | __ cmp(eax, Factory::true_value()); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 4040 | Split(equal, if_true, if_false, fall_through); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4041 | break; |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4042 | |
| 4043 | case Token::INSTANCEOF: { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 4044 | VisitForStackValue(expr->right()); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 4045 | __ IncrementCounter(&Counters::instance_of_full, 1); |
| 4046 | InstanceofStub stub(InstanceofStub::kNoFlags); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4047 | __ CallStub(&stub); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 4048 | PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4049 | __ test(eax, Operand(eax)); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 4050 | // The stub returns 0 for true. |
| 4051 | Split(zero, if_true, if_false, fall_through); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4052 | break; |
| 4053 | } |
| 4054 | |
| 4055 | default: { |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 4056 | VisitForAccumulatorValue(expr->right()); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4057 | Condition cc = no_condition; |
| 4058 | bool strict = false; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 4059 | switch (op) { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4060 | case Token::EQ_STRICT: |
| 4061 | strict = true; |
| 4062 | // Fall through |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 4063 | case Token::EQ: |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4064 | cc = equal; |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4065 | __ pop(edx); |
| 4066 | break; |
| 4067 | case Token::LT: |
| 4068 | cc = less; |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4069 | __ pop(edx); |
| 4070 | break; |
| 4071 | case Token::GT: |
| 4072 | // Reverse left and right sizes to obtain ECMA-262 conversion order. |
| 4073 | cc = less; |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 4074 | __ mov(edx, result_register()); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4075 | __ pop(eax); |
| 4076 | break; |
| 4077 | case Token::LTE: |
| 4078 | // Reverse left and right sizes to obtain ECMA-262 conversion order. |
| 4079 | cc = greater_equal; |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 4080 | __ mov(edx, result_register()); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4081 | __ pop(eax); |
| 4082 | break; |
| 4083 | case Token::GTE: |
| 4084 | cc = greater_equal; |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4085 | __ pop(edx); |
| 4086 | break; |
| 4087 | case Token::IN: |
| 4088 | case Token::INSTANCEOF: |
| 4089 | default: |
| 4090 | UNREACHABLE(); |
| 4091 | } |
| 4092 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 4093 | bool inline_smi_code = ShouldInlineSmiCase(op); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 4094 | JumpPatchSite patch_site(masm_); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 4095 | if (inline_smi_code) { |
| 4096 | NearLabel slow_case; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 4097 | __ mov(ecx, Operand(edx)); |
| 4098 | __ or_(ecx, Operand(eax)); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 4099 | patch_site.EmitJumpIfNotSmi(ecx, &slow_case); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 4100 | __ cmp(edx, Operand(eax)); |
| 4101 | Split(cc, if_true, if_false, NULL); |
| 4102 | __ bind(&slow_case); |
| 4103 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4104 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 4105 | // Record position and call the compare IC. |
| 4106 | SetSourcePosition(expr->position()); |
| 4107 | Handle<Code> ic = CompareIC::GetUninitialized(op); |
| 4108 | EmitCallIC(ic, &patch_site); |
| 4109 | |
| 4110 | PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4111 | __ test(eax, Operand(eax)); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 4112 | Split(cc, if_true, if_false, fall_through); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4113 | } |
| 4114 | } |
| 4115 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 4116 | // Convert the result of the comparison into one expected for this |
| 4117 | // expression's context. |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 4118 | context()->Plug(if_true, if_false); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4119 | } |
| 4120 | |
| 4121 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 4122 | void FullCodeGenerator::VisitCompareToNull(CompareToNull* expr) { |
| 4123 | Label materialize_true, materialize_false; |
| 4124 | Label* if_true = NULL; |
| 4125 | Label* if_false = NULL; |
| 4126 | Label* fall_through = NULL; |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 4127 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 4128 | &if_true, &if_false, &fall_through); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 4129 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 4130 | VisitForAccumulatorValue(expr->expression()); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 4131 | PrepareForBailoutBeforeSplit(TOS_REG, true, if_true, if_false); |
| 4132 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 4133 | __ cmp(eax, Factory::null_value()); |
| 4134 | if (expr->is_strict()) { |
| 4135 | Split(equal, if_true, if_false, fall_through); |
| 4136 | } else { |
| 4137 | __ j(equal, if_true); |
| 4138 | __ cmp(eax, Factory::undefined_value()); |
| 4139 | __ j(equal, if_true); |
| 4140 | __ test(eax, Immediate(kSmiTagMask)); |
| 4141 | __ j(zero, if_false); |
| 4142 | // It can be an undetectable object. |
| 4143 | __ mov(edx, FieldOperand(eax, HeapObject::kMapOffset)); |
| 4144 | __ movzx_b(edx, FieldOperand(edx, Map::kBitFieldOffset)); |
| 4145 | __ test(edx, Immediate(1 << Map::kIsUndetectable)); |
| 4146 | Split(not_zero, if_true, if_false, fall_through); |
| 4147 | } |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 4148 | context()->Plug(if_true, if_false); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 4149 | } |
| 4150 | |
| 4151 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 4152 | void FullCodeGenerator::VisitThisFunction(ThisFunction* expr) { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4153 | __ mov(eax, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 4154 | context()->Plug(eax); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4155 | } |
| 4156 | |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4157 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 4158 | Register FullCodeGenerator::result_register() { |
| 4159 | return eax; |
| 4160 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 4161 | |
| 4162 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 4163 | Register FullCodeGenerator::context_register() { |
| 4164 | return esi; |
| 4165 | } |
| 4166 | |
| 4167 | |
| 4168 | void FullCodeGenerator::EmitCallIC(Handle<Code> ic, RelocInfo::Mode mode) { |
| 4169 | ASSERT(mode == RelocInfo::CODE_TARGET || |
| 4170 | mode == RelocInfo::CODE_TARGET_CONTEXT); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 4171 | switch (ic->kind()) { |
| 4172 | case Code::LOAD_IC: |
| 4173 | __ IncrementCounter(&Counters::named_load_full, 1); |
| 4174 | break; |
| 4175 | case Code::KEYED_LOAD_IC: |
| 4176 | __ IncrementCounter(&Counters::keyed_load_full, 1); |
| 4177 | break; |
| 4178 | case Code::STORE_IC: |
| 4179 | __ IncrementCounter(&Counters::named_store_full, 1); |
| 4180 | break; |
| 4181 | case Code::KEYED_STORE_IC: |
| 4182 | __ IncrementCounter(&Counters::keyed_store_full, 1); |
| 4183 | default: |
| 4184 | break; |
| 4185 | } |
| 4186 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 4187 | __ call(ic, mode); |
| 4188 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 4189 | // Crankshaft doesn't need patching of inlined loads and stores. |
| 4190 | // When compiling the snapshot we need to produce code that works |
| 4191 | // with and without Crankshaft. |
| 4192 | if (V8::UseCrankshaft() && !Serializer::enabled()) { |
| 4193 | return; |
| 4194 | } |
| 4195 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 4196 | // If we're calling a (keyed) load or store stub, we have to mark |
| 4197 | // the call as containing no inlined code so we will not attempt to |
| 4198 | // patch it. |
| 4199 | switch (ic->kind()) { |
| 4200 | case Code::LOAD_IC: |
| 4201 | case Code::KEYED_LOAD_IC: |
| 4202 | case Code::STORE_IC: |
| 4203 | case Code::KEYED_STORE_IC: |
| 4204 | __ nop(); // Signals no inlined code. |
| 4205 | break; |
| 4206 | default: |
| 4207 | // Do nothing. |
| 4208 | break; |
| 4209 | } |
| 4210 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 4211 | |
| 4212 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 4213 | void FullCodeGenerator::EmitCallIC(Handle<Code> ic, JumpPatchSite* patch_site) { |
| 4214 | __ call(ic, RelocInfo::CODE_TARGET); |
| 4215 | if (patch_site != NULL && patch_site->is_bound()) { |
| 4216 | patch_site->EmitPatchInfo(); |
| 4217 | } else { |
| 4218 | __ nop(); // Signals no inlined code. |
| 4219 | } |
| 4220 | } |
| 4221 | |
| 4222 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 4223 | void FullCodeGenerator::StoreToFrameField(int frame_offset, Register value) { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 4224 | ASSERT_EQ(POINTER_SIZE_ALIGN(frame_offset), frame_offset); |
| 4225 | __ mov(Operand(ebp, frame_offset), value); |
| 4226 | } |
| 4227 | |
| 4228 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 4229 | void FullCodeGenerator::LoadContextField(Register dst, int context_index) { |
Steve Block | 5915150 | 2010-09-22 15:07:15 +0100 | [diff] [blame] | 4230 | __ mov(dst, ContextOperand(esi, context_index)); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 4231 | } |
| 4232 | |
| 4233 | |
| 4234 | // ---------------------------------------------------------------------------- |
| 4235 | // Non-local control flow support. |
| 4236 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 4237 | void FullCodeGenerator::EnterFinallyBlock() { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 4238 | // Cook return address on top of stack (smi encoded Code* delta) |
| 4239 | ASSERT(!result_register().is(edx)); |
| 4240 | __ mov(edx, Operand(esp, 0)); |
| 4241 | __ sub(Operand(edx), Immediate(masm_->CodeObject())); |
| 4242 | ASSERT_EQ(1, kSmiTagSize + kSmiShiftSize); |
| 4243 | ASSERT_EQ(0, kSmiTag); |
| 4244 | __ add(edx, Operand(edx)); // Convert to smi. |
| 4245 | __ mov(Operand(esp, 0), edx); |
| 4246 | // Store result register while executing finally block. |
| 4247 | __ push(result_register()); |
| 4248 | } |
| 4249 | |
| 4250 | |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 4251 | void FullCodeGenerator::ExitFinallyBlock() { |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 4252 | ASSERT(!result_register().is(edx)); |
| 4253 | // Restore result register from stack. |
| 4254 | __ pop(result_register()); |
| 4255 | // Uncook return address. |
| 4256 | __ mov(edx, Operand(esp, 0)); |
| 4257 | __ sar(edx, 1); // Convert smi to int. |
| 4258 | __ add(Operand(edx), Immediate(masm_->CodeObject())); |
| 4259 | __ mov(Operand(esp, 0), edx); |
| 4260 | // And return. |
| 4261 | __ ret(0); |
| 4262 | } |
| 4263 | |
| 4264 | |
| 4265 | #undef __ |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 4266 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 4267 | } } // namespace v8::internal |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 4268 | |
| 4269 | #endif // V8_TARGET_ARCH_IA32 |