ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 1 | // Copyright 2006-2008 the V8 project authors. All rights reserved. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | #include "v8.h" |
| 29 | |
| 30 | #include "ic-inl.h" |
| 31 | #include "codegen-inl.h" |
| 32 | #include "stub-cache.h" |
| 33 | |
| 34 | namespace v8 { namespace internal { |
| 35 | |
| 36 | #define __ masm-> |
| 37 | |
| 38 | |
| 39 | static void ProbeTable(MacroAssembler* masm, |
| 40 | Code::Flags flags, |
| 41 | StubCache::Table table, |
| 42 | Register name, |
| 43 | Register offset) { |
| 44 | ExternalReference key_offset(SCTableReference::keyReference(table)); |
| 45 | ExternalReference value_offset(SCTableReference::valueReference(table)); |
| 46 | |
| 47 | Label miss; |
| 48 | |
| 49 | // Save the offset on the stack. |
| 50 | __ push(offset); |
| 51 | |
| 52 | // Check that the key in the entry matches the name. |
| 53 | __ cmp(name, Operand::StaticArray(offset, times_2, key_offset)); |
| 54 | __ j(not_equal, &miss, not_taken); |
| 55 | |
| 56 | // Get the code entry from the cache. |
| 57 | __ mov(offset, Operand::StaticArray(offset, times_2, value_offset)); |
| 58 | |
| 59 | // Check that the flags match what we're looking for. |
| 60 | __ mov(offset, FieldOperand(offset, Code::kFlagsOffset)); |
| 61 | __ and_(offset, ~Code::kFlagsTypeMask); |
| 62 | __ cmp(offset, flags); |
| 63 | __ j(not_equal, &miss); |
| 64 | |
| 65 | // Restore offset and re-load code entry from cache. |
| 66 | __ pop(offset); |
| 67 | __ mov(offset, Operand::StaticArray(offset, times_2, value_offset)); |
| 68 | |
| 69 | // Jump to the first instruction in the code stub. |
| 70 | __ add(Operand(offset), Immediate(Code::kHeaderSize - kHeapObjectTag)); |
| 71 | __ jmp(Operand(offset)); |
| 72 | |
| 73 | // Miss: Restore offset and fall through. |
| 74 | __ bind(&miss); |
| 75 | __ pop(offset); |
| 76 | } |
| 77 | |
| 78 | |
| 79 | void StubCache::GenerateProbe(MacroAssembler* masm, |
| 80 | Code::Flags flags, |
| 81 | Register receiver, |
| 82 | Register name, |
| 83 | Register scratch) { |
| 84 | Label miss; |
| 85 | |
| 86 | // Make sure that code is valid. The shifting code relies on the |
| 87 | // entry size being 8. |
| 88 | ASSERT(sizeof(Entry) == 8); |
| 89 | |
| 90 | // Make sure the flags does not name a specific type. |
| 91 | ASSERT(Code::ExtractTypeFromFlags(flags) == 0); |
| 92 | |
| 93 | // Make sure that there are no register conflicts. |
| 94 | ASSERT(!scratch.is(receiver)); |
| 95 | ASSERT(!scratch.is(name)); |
| 96 | |
| 97 | // Check that the receiver isn't a smi. |
| 98 | __ test(receiver, Immediate(kSmiTagMask)); |
| 99 | __ j(zero, &miss, not_taken); |
| 100 | |
| 101 | // Get the map of the receiver and compute the hash. |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 102 | __ mov(scratch, FieldOperand(name, String::kLengthOffset)); |
| 103 | __ add(scratch, FieldOperand(receiver, HeapObject::kMapOffset)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 104 | __ xor_(scratch, flags); |
| 105 | __ and_(scratch, (kPrimaryTableSize - 1) << kHeapObjectTagSize); |
| 106 | |
| 107 | // Probe the primary table. |
| 108 | ProbeTable(masm, flags, kPrimary, name, scratch); |
| 109 | |
| 110 | // Primary miss: Compute hash for secondary probe. |
| 111 | __ sub(scratch, Operand(name)); |
| 112 | __ add(Operand(scratch), Immediate(flags)); |
| 113 | __ and_(scratch, (kSecondaryTableSize - 1) << kHeapObjectTagSize); |
| 114 | |
| 115 | // Probe the secondary table. |
| 116 | ProbeTable(masm, flags, kSecondary, name, scratch); |
| 117 | |
| 118 | // Cache miss: Fall-through and let caller handle the miss by |
| 119 | // entering the runtime system. |
| 120 | __ bind(&miss); |
| 121 | } |
| 122 | |
| 123 | |
| 124 | void StubCompiler::GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm, |
| 125 | int index, |
| 126 | Register prototype) { |
| 127 | // Load the global or builtins object from the current context. |
| 128 | __ mov(prototype, Operand(esi, Context::SlotOffset(Context::GLOBAL_INDEX))); |
| 129 | // Load the global context from the global or builtins object. |
| 130 | __ mov(prototype, |
| 131 | FieldOperand(prototype, GlobalObject::kGlobalContextOffset)); |
| 132 | // Load the function from the global context. |
| 133 | __ mov(prototype, Operand(prototype, Context::SlotOffset(index))); |
| 134 | // Load the initial map. The global functions all have initial maps. |
| 135 | __ mov(prototype, |
| 136 | FieldOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset)); |
| 137 | // Load the prototype from the initial map. |
| 138 | __ mov(prototype, FieldOperand(prototype, Map::kPrototypeOffset)); |
| 139 | } |
| 140 | |
| 141 | |
| 142 | void StubCompiler::GenerateLoadArrayLength(MacroAssembler* masm, |
| 143 | Register receiver, |
| 144 | Register scratch, |
| 145 | Label* miss_label) { |
| 146 | // Check that the receiver isn't a smi. |
| 147 | __ test(receiver, Immediate(kSmiTagMask)); |
| 148 | __ j(zero, miss_label, not_taken); |
| 149 | |
| 150 | // Check that the object is a JS array. |
| 151 | __ mov(scratch, FieldOperand(receiver, HeapObject::kMapOffset)); |
| 152 | __ movzx_b(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset)); |
| 153 | __ cmp(scratch, JS_ARRAY_TYPE); |
| 154 | __ j(not_equal, miss_label, not_taken); |
| 155 | |
| 156 | // Load length directly from the JS array. |
| 157 | __ mov(eax, FieldOperand(receiver, JSArray::kLengthOffset)); |
| 158 | __ ret(0); |
| 159 | } |
| 160 | |
| 161 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 162 | // Generate code to check if an object is a string. If the object is |
| 163 | // a string, the map's instance type is left in the scratch register. |
| 164 | static void GenerateStringCheck(MacroAssembler* masm, |
| 165 | Register receiver, |
| 166 | Register scratch, |
| 167 | Label* smi, |
| 168 | Label* non_string_object) { |
| 169 | // Check that the object isn't a smi. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 170 | __ test(receiver, Immediate(kSmiTagMask)); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 171 | __ j(zero, smi, not_taken); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 172 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 173 | // Check that the object is a string. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 174 | __ mov(scratch, FieldOperand(receiver, HeapObject::kMapOffset)); |
| 175 | __ movzx_b(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset)); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 176 | ASSERT(kNotStringTag != 0); |
| 177 | __ test(scratch, Immediate(kNotStringTag)); |
| 178 | __ j(not_zero, non_string_object, not_taken); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 179 | } |
| 180 | |
| 181 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 182 | void StubCompiler::GenerateLoadStringLength(MacroAssembler* masm, |
| 183 | Register receiver, |
| 184 | Register scratch, |
| 185 | Label* miss) { |
| 186 | Label load_length, check_wrapper; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 187 | |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 188 | // Check if the object is a string leaving the instance type in the |
| 189 | // scratch register. |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 190 | GenerateStringCheck(masm, receiver, scratch, miss, &check_wrapper); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 191 | |
| 192 | // Load length directly from the string. |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 193 | __ bind(&load_length); |
| 194 | __ and_(scratch, kStringSizeMask); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 195 | __ mov(eax, FieldOperand(receiver, String::kLengthOffset)); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 196 | // ecx is also the receiver. |
| 197 | __ lea(ecx, Operand(scratch, String::kLongLengthShift)); |
| 198 | __ shr(eax); // ecx is implicit shift register. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 199 | __ shl(eax, kSmiTagSize); |
| 200 | __ ret(0); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 201 | |
| 202 | // Check if the object is a JSValue wrapper. |
| 203 | __ bind(&check_wrapper); |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 204 | __ cmp(scratch, JS_VALUE_TYPE); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 205 | __ j(not_equal, miss, not_taken); |
| 206 | |
| 207 | // Check if the wrapped value is a string and load the length |
| 208 | // directly if it is. |
| 209 | __ mov(receiver, FieldOperand(receiver, JSValue::kValueOffset)); |
| 210 | GenerateStringCheck(masm, receiver, scratch, miss, miss); |
| 211 | __ jmp(&load_length); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 212 | } |
| 213 | |
| 214 | |
| 215 | void StubCompiler::GenerateLoadFunctionPrototype(MacroAssembler* masm, |
| 216 | Register receiver, |
| 217 | Register scratch1, |
| 218 | Register scratch2, |
| 219 | Label* miss_label) { |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 220 | __ TryGetFunctionPrototype(receiver, scratch1, scratch2, miss_label); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 221 | __ mov(eax, Operand(scratch1)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 222 | __ ret(0); |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 223 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 224 | |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 225 | |
| 226 | // Load a fast property out of a holder object (src). In-object properties |
| 227 | // are loaded directly otherwise the property is loaded from the properties |
| 228 | // fixed array. |
| 229 | void StubCompiler::GenerateFastPropertyLoad(MacroAssembler* masm, |
| 230 | Register dst, Register src, |
| 231 | JSObject* holder, int index) { |
| 232 | // Adjust for the number of properties stored in the holder. |
| 233 | index -= holder->map()->inobject_properties(); |
| 234 | if (index < 0) { |
| 235 | // Get the property straight out of the holder. |
| 236 | int offset = holder->map()->instance_size() + (index * kPointerSize); |
| 237 | __ mov(dst, FieldOperand(src, offset)); |
| 238 | } else { |
| 239 | // Calculate the offset into the properties array. |
| 240 | int offset = index * kPointerSize + Array::kHeaderSize; |
| 241 | __ mov(dst, FieldOperand(src, JSObject::kPropertiesOffset)); |
| 242 | __ mov(dst, FieldOperand(dst, offset)); |
| 243 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 244 | } |
| 245 | |
| 246 | |
| 247 | void StubCompiler::GenerateLoadField(MacroAssembler* masm, |
| 248 | JSObject* object, |
| 249 | JSObject* holder, |
| 250 | Register receiver, |
| 251 | Register scratch1, |
| 252 | Register scratch2, |
| 253 | int index, |
| 254 | Label* miss_label) { |
| 255 | // Check that the receiver isn't a smi. |
| 256 | __ test(receiver, Immediate(kSmiTagMask)); |
| 257 | __ j(zero, miss_label, not_taken); |
| 258 | |
| 259 | // Check that the maps haven't changed. |
| 260 | Register reg = |
| 261 | __ CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label); |
| 262 | |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 263 | // Get the value from the properties. |
| 264 | GenerateFastPropertyLoad(masm, eax, reg, holder, index); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 265 | __ ret(0); |
| 266 | } |
| 267 | |
| 268 | |
| 269 | void StubCompiler::GenerateLoadCallback(MacroAssembler* masm, |
| 270 | JSObject* object, |
| 271 | JSObject* holder, |
| 272 | Register receiver, |
| 273 | Register name, |
| 274 | Register scratch1, |
| 275 | Register scratch2, |
| 276 | AccessorInfo* callback, |
| 277 | Label* miss_label) { |
| 278 | // Check that the receiver isn't a smi. |
| 279 | __ test(receiver, Immediate(kSmiTagMask)); |
| 280 | __ j(zero, miss_label, not_taken); |
| 281 | |
| 282 | // Check that the maps haven't changed. |
| 283 | Register reg = |
| 284 | __ CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label); |
| 285 | |
| 286 | // Push the arguments on the JS stack of the caller. |
| 287 | __ pop(scratch2); // remove return address |
| 288 | __ push(receiver); // receiver |
| 289 | __ push(Immediate(Handle<AccessorInfo>(callback))); // callback data |
| 290 | __ push(name); // name |
| 291 | __ push(reg); // holder |
| 292 | __ push(scratch2); // restore return address |
| 293 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 294 | // Do tail-call to the runtime system. |
| 295 | ExternalReference load_callback_property = |
| 296 | ExternalReference(IC_Utility(IC::kLoadCallbackProperty)); |
| 297 | __ TailCallRuntime(load_callback_property, 4); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 298 | } |
| 299 | |
| 300 | |
| 301 | void StubCompiler::GenerateLoadConstant(MacroAssembler* masm, |
| 302 | JSObject* object, |
| 303 | JSObject* holder, |
| 304 | Register receiver, |
| 305 | Register scratch1, |
| 306 | Register scratch2, |
| 307 | Object* value, |
| 308 | Label* miss_label) { |
| 309 | // Check that the receiver isn't a smi. |
| 310 | __ test(receiver, Immediate(kSmiTagMask)); |
| 311 | __ j(zero, miss_label, not_taken); |
| 312 | |
| 313 | // Check that the maps haven't changed. |
| 314 | Register reg = |
| 315 | __ CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label); |
| 316 | |
| 317 | // Return the constant value. |
| 318 | __ mov(eax, Handle<Object>(value)); |
| 319 | __ ret(0); |
| 320 | } |
| 321 | |
| 322 | |
| 323 | void StubCompiler::GenerateLoadInterceptor(MacroAssembler* masm, |
| 324 | JSObject* object, |
| 325 | JSObject* holder, |
| 326 | Register receiver, |
| 327 | Register name, |
| 328 | Register scratch1, |
| 329 | Register scratch2, |
| 330 | Label* miss_label) { |
| 331 | // Check that the receiver isn't a smi. |
| 332 | __ test(receiver, Immediate(kSmiTagMask)); |
| 333 | __ j(zero, miss_label, not_taken); |
| 334 | |
| 335 | // Check that the maps haven't changed. |
| 336 | Register reg = |
| 337 | __ CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label); |
| 338 | |
| 339 | // Push the arguments on the JS stack of the caller. |
| 340 | __ pop(scratch2); // remove return address |
| 341 | __ push(receiver); // receiver |
| 342 | __ push(reg); // holder |
| 343 | __ push(name); // name |
| 344 | __ push(scratch2); // restore return address |
| 345 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 346 | // Do tail-call to the runtime system. |
| 347 | ExternalReference load_ic_property = |
| 348 | ExternalReference(IC_Utility(IC::kLoadInterceptorProperty)); |
| 349 | __ TailCallRuntime(load_ic_property, 3); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 350 | } |
| 351 | |
| 352 | |
| 353 | void StubCompiler::GenerateLoadMiss(MacroAssembler* masm, Code::Kind kind) { |
| 354 | ASSERT(kind == Code::LOAD_IC || kind == Code::KEYED_LOAD_IC); |
| 355 | Code* code = NULL; |
| 356 | if (kind == Code::LOAD_IC) { |
| 357 | code = Builtins::builtin(Builtins::LoadIC_Miss); |
| 358 | } else { |
| 359 | code = Builtins::builtin(Builtins::KeyedLoadIC_Miss); |
| 360 | } |
| 361 | |
| 362 | Handle<Code> ic(code); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 363 | __ jmp(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 364 | } |
| 365 | |
| 366 | |
| 367 | void StubCompiler::GenerateStoreField(MacroAssembler* masm, |
kasperl@chromium.org | 1accd57 | 2008-10-07 10:57:21 +0000 | [diff] [blame] | 368 | Builtins::Name storage_extend, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 369 | JSObject* object, |
| 370 | int index, |
| 371 | Map* transition, |
| 372 | Register receiver_reg, |
| 373 | Register name_reg, |
| 374 | Register scratch, |
| 375 | Label* miss_label) { |
| 376 | // Check that the object isn't a smi. |
| 377 | __ test(receiver_reg, Immediate(kSmiTagMask)); |
| 378 | __ j(zero, miss_label, not_taken); |
| 379 | |
| 380 | // Check that the map of the object hasn't changed. |
| 381 | __ cmp(FieldOperand(receiver_reg, HeapObject::kMapOffset), |
| 382 | Immediate(Handle<Map>(object->map()))); |
| 383 | __ j(not_equal, miss_label, not_taken); |
| 384 | |
| 385 | // Perform global security token check if needed. |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 386 | if (object->IsJSGlobalProxy()) { |
| 387 | __ CheckAccessGlobalProxy(receiver_reg, scratch, miss_label); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 388 | } |
| 389 | |
| 390 | // Stub never generated for non-global objects that require access |
| 391 | // checks. |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 392 | ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 393 | |
kasperl@chromium.org | 1accd57 | 2008-10-07 10:57:21 +0000 | [diff] [blame] | 394 | // Perform map transition for the receiver if necessary. |
| 395 | if ((transition != NULL) && (object->map()->unused_property_fields() == 0)) { |
| 396 | // The properties must be extended before we can store the value. |
| 397 | // We jump to a runtime call that extends the propeties array. |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 398 | __ mov(ecx, Immediate(Handle<Map>(transition))); |
kasperl@chromium.org | 1accd57 | 2008-10-07 10:57:21 +0000 | [diff] [blame] | 399 | Handle<Code> ic(Builtins::builtin(storage_extend)); |
| 400 | __ jmp(ic, RelocInfo::CODE_TARGET); |
| 401 | return; |
| 402 | } |
| 403 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 404 | if (transition != NULL) { |
kasperl@chromium.org | 1accd57 | 2008-10-07 10:57:21 +0000 | [diff] [blame] | 405 | // Update the map of the object; no write barrier updating is |
| 406 | // needed because the map is never in new space. |
| 407 | __ mov(FieldOperand(receiver_reg, HeapObject::kMapOffset), |
| 408 | Immediate(Handle<Map>(transition))); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 409 | } |
| 410 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame^] | 411 | // Adjust for the number of properties stored in the object. Even in the |
| 412 | // face of a transition we can use the old map here because the size of the |
| 413 | // object and the number of in-object properties is not going to change. |
| 414 | index -= object->map()->inobject_properties(); |
| 415 | |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 416 | if (index < 0) { |
| 417 | // Set the property straight into the object. |
| 418 | int offset = object->map()->instance_size() + (index * kPointerSize); |
| 419 | __ mov(FieldOperand(receiver_reg, offset), eax); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 420 | |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 421 | // Update the write barrier for the array address. |
| 422 | // Pass the value being stored in the now unused name_reg. |
| 423 | __ mov(name_reg, Operand(eax)); |
| 424 | __ RecordWrite(receiver_reg, offset, name_reg, scratch); |
| 425 | } else { |
| 426 | // Write to the properties array. |
| 427 | int offset = index * kPointerSize + Array::kHeaderSize; |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame^] | 428 | // Get the properties array (optimistically). |
| 429 | __ mov(scratch, FieldOperand(receiver_reg, JSObject::kPropertiesOffset)); |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 430 | __ mov(FieldOperand(scratch, offset), eax); |
| 431 | |
| 432 | // Update the write barrier for the array address. |
| 433 | // Pass the value being stored in the now unused name_reg. |
| 434 | __ mov(name_reg, Operand(eax)); |
| 435 | __ RecordWrite(scratch, offset, name_reg, receiver_reg); |
| 436 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 437 | |
| 438 | // Return the value (register eax). |
| 439 | __ ret(0); |
| 440 | } |
| 441 | |
| 442 | |
| 443 | #undef __ |
| 444 | |
| 445 | #define __ masm()-> |
| 446 | |
| 447 | |
| 448 | // TODO(1241006): Avoid having lazy compile stubs specialized by the |
| 449 | // number of arguments. It is not needed anymore. |
| 450 | Object* StubCompiler::CompileLazyCompile(Code::Flags flags) { |
| 451 | HandleScope scope; |
| 452 | |
| 453 | // Enter an internal frame. |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 454 | __ EnterInternalFrame(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 455 | |
| 456 | // Push a copy of the function onto the stack. |
| 457 | __ push(edi); |
| 458 | |
| 459 | __ push(edi); // function is also the parameter to the runtime call |
| 460 | __ CallRuntime(Runtime::kLazyCompile, 1); |
| 461 | __ pop(edi); |
| 462 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 463 | // Tear down temporary frame. |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 464 | __ LeaveInternalFrame(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 465 | |
| 466 | // Do a tail-call of the compiled function. |
| 467 | __ lea(ecx, FieldOperand(eax, Code::kHeaderSize)); |
| 468 | __ jmp(Operand(ecx)); |
| 469 | |
| 470 | return GetCodeWithFlags(flags); |
| 471 | } |
| 472 | |
| 473 | |
| 474 | Object* CallStubCompiler::CompileCallField(Object* object, |
| 475 | JSObject* holder, |
| 476 | int index) { |
| 477 | // ----------- S t a t e ------------- |
| 478 | // ----------------------------------- |
| 479 | |
| 480 | HandleScope scope; |
| 481 | Label miss; |
| 482 | |
| 483 | // Get the receiver from the stack. |
| 484 | const int argc = arguments().immediate(); |
| 485 | __ mov(edx, Operand(esp, (argc + 1) * kPointerSize)); |
| 486 | |
| 487 | // Check that the receiver isn't a smi. |
| 488 | __ test(edx, Immediate(kSmiTagMask)); |
| 489 | __ j(zero, &miss, not_taken); |
| 490 | |
| 491 | // Do the right check and compute the holder register. |
| 492 | Register reg = |
| 493 | __ CheckMaps(JSObject::cast(object), edx, holder, ebx, ecx, &miss); |
| 494 | |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 495 | GenerateFastPropertyLoad(masm(), edi, reg, holder, index); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 496 | |
| 497 | // Check that the function really is a function. |
| 498 | __ test(edi, Immediate(kSmiTagMask)); |
| 499 | __ j(zero, &miss, not_taken); |
| 500 | __ mov(ebx, FieldOperand(edi, HeapObject::kMapOffset)); // get the map |
| 501 | __ movzx_b(ebx, FieldOperand(ebx, Map::kInstanceTypeOffset)); |
| 502 | __ cmp(ebx, JS_FUNCTION_TYPE); |
| 503 | __ j(not_equal, &miss, not_taken); |
| 504 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 505 | // Patch the receiver on the stack with the global proxy if |
| 506 | // necessary. |
| 507 | if (object->IsGlobalObject()) { |
| 508 | __ mov(edx, FieldOperand(edx, GlobalObject::kGlobalReceiverOffset)); |
| 509 | __ mov(Operand(esp, (argc + 1) * kPointerSize), edx); |
| 510 | } |
| 511 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 512 | // Invoke the function. |
| 513 | __ InvokeFunction(edi, arguments(), JUMP_FUNCTION); |
| 514 | |
| 515 | // Handle call cache miss. |
| 516 | __ bind(&miss); |
| 517 | Handle<Code> ic = ComputeCallMiss(arguments().immediate()); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 518 | __ jmp(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 519 | |
| 520 | // Return the generated code. |
| 521 | return GetCode(FIELD); |
| 522 | } |
| 523 | |
| 524 | |
| 525 | Object* CallStubCompiler::CompileCallConstant(Object* object, |
| 526 | JSObject* holder, |
| 527 | JSFunction* function, |
| 528 | CheckType check) { |
| 529 | // ----------- S t a t e ------------- |
| 530 | // ----------------------------------- |
| 531 | |
| 532 | HandleScope scope; |
| 533 | Label miss; |
| 534 | |
| 535 | // Get the receiver from the stack. |
| 536 | const int argc = arguments().immediate(); |
| 537 | __ mov(edx, Operand(esp, (argc + 1) * kPointerSize)); |
| 538 | |
| 539 | // Check that the receiver isn't a smi. |
| 540 | if (check != NUMBER_CHECK) { |
| 541 | __ test(edx, Immediate(kSmiTagMask)); |
| 542 | __ j(zero, &miss, not_taken); |
| 543 | } |
| 544 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 545 | // Make sure that it's okay not to patch the on stack receiver |
| 546 | // unless we're doing a receiver map check. |
| 547 | ASSERT(!object->IsGlobalObject() || check == RECEIVER_MAP_CHECK); |
| 548 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 549 | switch (check) { |
| 550 | case RECEIVER_MAP_CHECK: |
| 551 | // Check that the maps haven't changed. |
| 552 | __ CheckMaps(JSObject::cast(object), edx, holder, ebx, ecx, &miss); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 553 | |
| 554 | // Patch the receiver on the stack with the global proxy if |
| 555 | // necessary. |
| 556 | if (object->IsGlobalObject()) { |
| 557 | __ mov(edx, FieldOperand(edx, GlobalObject::kGlobalReceiverOffset)); |
| 558 | __ mov(Operand(esp, (argc + 1) * kPointerSize), edx); |
| 559 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 560 | break; |
| 561 | |
| 562 | case STRING_CHECK: |
| 563 | // Check that the object is a two-byte string or a symbol. |
| 564 | __ mov(ecx, FieldOperand(edx, HeapObject::kMapOffset)); |
| 565 | __ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset)); |
| 566 | __ cmp(ecx, FIRST_NONSTRING_TYPE); |
| 567 | __ j(above_equal, &miss, not_taken); |
| 568 | // Check that the maps starting from the prototype haven't changed. |
| 569 | GenerateLoadGlobalFunctionPrototype(masm(), |
| 570 | Context::STRING_FUNCTION_INDEX, |
| 571 | ecx); |
| 572 | __ CheckMaps(JSObject::cast(object->GetPrototype()), |
| 573 | ecx, holder, ebx, edx, &miss); |
| 574 | break; |
| 575 | |
| 576 | case NUMBER_CHECK: { |
| 577 | Label fast; |
| 578 | // Check that the object is a smi or a heap number. |
| 579 | __ test(edx, Immediate(kSmiTagMask)); |
| 580 | __ j(zero, &fast, taken); |
| 581 | __ mov(ecx, FieldOperand(edx, HeapObject::kMapOffset)); |
| 582 | __ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset)); |
| 583 | __ cmp(ecx, HEAP_NUMBER_TYPE); |
| 584 | __ j(not_equal, &miss, not_taken); |
| 585 | __ bind(&fast); |
| 586 | // Check that the maps starting from the prototype haven't changed. |
| 587 | GenerateLoadGlobalFunctionPrototype(masm(), |
| 588 | Context::NUMBER_FUNCTION_INDEX, |
| 589 | ecx); |
| 590 | __ CheckMaps(JSObject::cast(object->GetPrototype()), |
| 591 | ecx, holder, ebx, edx, &miss); |
| 592 | break; |
| 593 | } |
| 594 | |
| 595 | case BOOLEAN_CHECK: { |
| 596 | Label fast; |
| 597 | // Check that the object is a boolean. |
| 598 | __ cmp(edx, Factory::true_value()); |
| 599 | __ j(equal, &fast, taken); |
| 600 | __ cmp(edx, Factory::false_value()); |
| 601 | __ j(not_equal, &miss, not_taken); |
| 602 | __ bind(&fast); |
| 603 | // Check that the maps starting from the prototype haven't changed. |
| 604 | GenerateLoadGlobalFunctionPrototype(masm(), |
| 605 | Context::BOOLEAN_FUNCTION_INDEX, |
| 606 | ecx); |
| 607 | __ CheckMaps(JSObject::cast(object->GetPrototype()), |
| 608 | ecx, holder, ebx, edx, &miss); |
| 609 | break; |
| 610 | } |
| 611 | |
| 612 | case JSARRAY_HAS_FAST_ELEMENTS_CHECK: |
| 613 | __ CheckMaps(JSObject::cast(object), edx, holder, ebx, ecx, &miss); |
| 614 | // Make sure object->elements()->map() != Heap::dictionary_array_map() |
| 615 | // Get the elements array of the object. |
| 616 | __ mov(ebx, FieldOperand(edx, JSObject::kElementsOffset)); |
| 617 | // Check that the object is in fast mode (not dictionary). |
| 618 | __ cmp(FieldOperand(ebx, HeapObject::kMapOffset), |
| 619 | Immediate(Factory::hash_table_map())); |
| 620 | __ j(equal, &miss, not_taken); |
| 621 | break; |
| 622 | |
| 623 | default: |
| 624 | UNREACHABLE(); |
| 625 | } |
| 626 | |
| 627 | // Get the function and setup the context. |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 628 | __ mov(edi, Immediate(Handle<JSFunction>(function))); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 629 | __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset)); |
| 630 | |
| 631 | // Jump to the cached code (tail call). |
| 632 | Handle<Code> code(function->code()); |
| 633 | ParameterCount expected(function->shared()->formal_parameter_count()); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 634 | __ InvokeCode(code, expected, arguments(), |
| 635 | RelocInfo::CODE_TARGET, JUMP_FUNCTION); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 636 | |
| 637 | // Handle call cache miss. |
| 638 | __ bind(&miss); |
| 639 | Handle<Code> ic = ComputeCallMiss(arguments().immediate()); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 640 | __ jmp(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 641 | |
| 642 | // Return the generated code. |
| 643 | return GetCode(CONSTANT_FUNCTION); |
| 644 | } |
| 645 | |
| 646 | |
| 647 | Object* CallStubCompiler::CompileCallInterceptor(Object* object, |
| 648 | JSObject* holder, |
| 649 | String* name) { |
| 650 | // ----------- S t a t e ------------- |
| 651 | // ----------------------------------- |
| 652 | |
| 653 | HandleScope scope; |
| 654 | Label miss; |
| 655 | |
| 656 | // Get the number of arguments. |
| 657 | const int argc = arguments().immediate(); |
| 658 | |
| 659 | // Get the receiver from the stack. |
| 660 | __ mov(edx, Operand(esp, (argc + 1) * kPointerSize)); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 661 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 662 | // Check that the receiver isn't a smi. |
| 663 | __ test(edx, Immediate(kSmiTagMask)); |
| 664 | __ j(zero, &miss, not_taken); |
| 665 | |
| 666 | // Check that maps have not changed and compute the holder register. |
| 667 | Register reg = |
| 668 | __ CheckMaps(JSObject::cast(object), edx, holder, ebx, ecx, &miss); |
| 669 | |
| 670 | // Enter an internal frame. |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 671 | __ EnterInternalFrame(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 672 | |
| 673 | // Push arguments on the expression stack. |
| 674 | __ push(edx); // receiver |
| 675 | __ push(reg); // holder |
| 676 | __ push(Operand(ebp, (argc + 3) * kPointerSize)); // name |
| 677 | |
| 678 | // Perform call. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 679 | ExternalReference load_interceptor = |
| 680 | ExternalReference(IC_Utility(IC::kLoadInterceptorProperty)); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 681 | __ mov(eax, Immediate(3)); |
| 682 | __ mov(ebx, Immediate(load_interceptor)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 683 | |
| 684 | CEntryStub stub; |
| 685 | __ CallStub(&stub); |
| 686 | |
| 687 | // Move result to edi and restore receiver. |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 688 | __ mov(edi, eax); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 689 | __ mov(edx, Operand(ebp, (argc + 2) * kPointerSize)); // receiver |
| 690 | |
| 691 | // Exit frame. |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 692 | __ LeaveInternalFrame(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 693 | |
| 694 | // Check that the function really is a function. |
| 695 | __ test(edi, Immediate(kSmiTagMask)); |
| 696 | __ j(zero, &miss, not_taken); |
| 697 | __ mov(ebx, FieldOperand(edi, HeapObject::kMapOffset)); |
| 698 | __ movzx_b(ebx, FieldOperand(ebx, Map::kInstanceTypeOffset)); |
| 699 | __ cmp(ebx, JS_FUNCTION_TYPE); |
| 700 | __ j(not_equal, &miss, not_taken); |
| 701 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 702 | // Patch the receiver on the stack with the global proxy if |
| 703 | // necessary. |
| 704 | if (object->IsGlobalObject()) { |
| 705 | __ mov(edx, FieldOperand(edx, GlobalObject::kGlobalReceiverOffset)); |
| 706 | __ mov(Operand(esp, (argc + 1) * kPointerSize), edx); |
| 707 | } |
| 708 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 709 | // Invoke the function. |
| 710 | __ InvokeFunction(edi, arguments(), JUMP_FUNCTION); |
| 711 | |
| 712 | // Handle load cache miss. |
| 713 | __ bind(&miss); |
| 714 | Handle<Code> ic = ComputeCallMiss(argc); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 715 | __ jmp(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 716 | |
| 717 | // Return the generated code. |
| 718 | return GetCode(INTERCEPTOR); |
| 719 | } |
| 720 | |
| 721 | |
| 722 | Object* StoreStubCompiler::CompileStoreField(JSObject* object, |
| 723 | int index, |
| 724 | Map* transition, |
| 725 | String* name) { |
| 726 | // ----------- S t a t e ------------- |
| 727 | // -- eax : value |
| 728 | // -- ecx : name |
| 729 | // -- esp[0] : return address |
| 730 | // -- esp[4] : receiver |
| 731 | // ----------------------------------- |
| 732 | |
| 733 | HandleScope scope; |
| 734 | Label miss; |
| 735 | |
| 736 | // Get the object from the stack. |
| 737 | __ mov(ebx, Operand(esp, 1 * kPointerSize)); |
| 738 | |
| 739 | // Generate store field code. Trashes the name register. |
kasperl@chromium.org | 1accd57 | 2008-10-07 10:57:21 +0000 | [diff] [blame] | 740 | GenerateStoreField(masm(), |
| 741 | Builtins::StoreIC_ExtendStorage, |
| 742 | object, |
| 743 | index, |
| 744 | transition, |
| 745 | ebx, ecx, edx, |
| 746 | &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 747 | |
| 748 | // Handle store cache miss. |
| 749 | __ bind(&miss); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 750 | __ mov(ecx, Immediate(Handle<String>(name))); // restore name |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 751 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss)); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 752 | __ jmp(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 753 | |
| 754 | // Return the generated code. |
| 755 | return GetCode(transition == NULL ? FIELD : MAP_TRANSITION); |
| 756 | } |
| 757 | |
| 758 | |
| 759 | Object* StoreStubCompiler::CompileStoreCallback(JSObject* object, |
| 760 | AccessorInfo* callback, |
| 761 | String* name) { |
| 762 | // ----------- S t a t e ------------- |
| 763 | // -- eax : value |
| 764 | // -- ecx : name |
| 765 | // -- esp[0] : return address |
| 766 | // -- esp[4] : receiver |
| 767 | // ----------------------------------- |
| 768 | |
| 769 | HandleScope scope; |
| 770 | Label miss; |
| 771 | |
| 772 | // Get the object from the stack. |
| 773 | __ mov(ebx, Operand(esp, 1 * kPointerSize)); |
| 774 | |
| 775 | // Check that the object isn't a smi. |
| 776 | __ test(ebx, Immediate(kSmiTagMask)); |
| 777 | __ j(zero, &miss, not_taken); |
| 778 | |
| 779 | // Check that the map of the object hasn't changed. |
| 780 | __ cmp(FieldOperand(ebx, HeapObject::kMapOffset), |
| 781 | Immediate(Handle<Map>(object->map()))); |
| 782 | __ j(not_equal, &miss, not_taken); |
| 783 | |
| 784 | // Perform global security token check if needed. |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 785 | if (object->IsJSGlobalProxy()) { |
| 786 | __ CheckAccessGlobalProxy(ebx, edx, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 787 | } |
| 788 | |
| 789 | // Stub never generated for non-global objects that require access |
| 790 | // checks. |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 791 | ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 792 | |
| 793 | __ pop(ebx); // remove the return address |
| 794 | __ push(Operand(esp, 0)); // receiver |
| 795 | __ push(Immediate(Handle<AccessorInfo>(callback))); // callback info |
| 796 | __ push(ecx); // name |
| 797 | __ push(eax); // value |
| 798 | __ push(ebx); // restore return address |
| 799 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 800 | // Do tail-call to the runtime system. |
| 801 | ExternalReference store_callback_property = |
| 802 | ExternalReference(IC_Utility(IC::kStoreCallbackProperty)); |
| 803 | __ TailCallRuntime(store_callback_property, 4); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 804 | |
| 805 | // Handle store cache miss. |
| 806 | __ bind(&miss); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 807 | __ mov(ecx, Immediate(Handle<String>(name))); // restore name |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 808 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss)); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 809 | __ jmp(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 810 | |
| 811 | // Return the generated code. |
| 812 | return GetCode(CALLBACKS); |
| 813 | } |
| 814 | |
| 815 | |
| 816 | Object* StoreStubCompiler::CompileStoreInterceptor(JSObject* receiver, |
| 817 | String* name) { |
| 818 | // ----------- S t a t e ------------- |
| 819 | // -- eax : value |
| 820 | // -- ecx : name |
| 821 | // -- esp[0] : return address |
| 822 | // -- esp[4] : receiver |
| 823 | // ----------------------------------- |
| 824 | |
| 825 | HandleScope scope; |
| 826 | Label miss; |
| 827 | |
| 828 | // Get the object from the stack. |
| 829 | __ mov(ebx, Operand(esp, 1 * kPointerSize)); |
| 830 | |
| 831 | // Check that the object isn't a smi. |
| 832 | __ test(ebx, Immediate(kSmiTagMask)); |
| 833 | __ j(zero, &miss, not_taken); |
| 834 | |
| 835 | // Check that the map of the object hasn't changed. |
| 836 | __ cmp(FieldOperand(ebx, HeapObject::kMapOffset), |
| 837 | Immediate(Handle<Map>(receiver->map()))); |
| 838 | __ j(not_equal, &miss, not_taken); |
| 839 | |
| 840 | // Perform global security token check if needed. |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 841 | if (receiver->IsJSGlobalProxy()) { |
| 842 | __ CheckAccessGlobalProxy(ebx, edx, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 843 | } |
| 844 | |
| 845 | // Stub never generated for non-global objects that require access |
| 846 | // checks. |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 847 | ASSERT(receiver->IsJSGlobalProxy() || !receiver->IsAccessCheckNeeded()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 848 | |
| 849 | __ pop(ebx); // remove the return address |
| 850 | __ push(Operand(esp, 0)); // receiver |
| 851 | __ push(ecx); // name |
| 852 | __ push(eax); // value |
| 853 | __ push(ebx); // restore return address |
| 854 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 855 | // Do tail-call to the runtime system. |
| 856 | ExternalReference store_ic_property = |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 857 | ExternalReference(IC_Utility(IC::kStoreInterceptorProperty)); |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 858 | __ TailCallRuntime(store_ic_property, 3); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 859 | |
| 860 | // Handle store cache miss. |
| 861 | __ bind(&miss); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 862 | __ mov(ecx, Immediate(Handle<String>(name))); // restore name |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 863 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss)); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 864 | __ jmp(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 865 | |
| 866 | // Return the generated code. |
| 867 | return GetCode(INTERCEPTOR); |
| 868 | } |
| 869 | |
| 870 | |
| 871 | Object* KeyedStoreStubCompiler::CompileStoreField(JSObject* object, |
| 872 | int index, |
| 873 | Map* transition, |
| 874 | String* name) { |
| 875 | // ----------- S t a t e ------------- |
| 876 | // -- eax : value |
| 877 | // -- esp[0] : return address |
| 878 | // -- esp[4] : key |
| 879 | // -- esp[8] : receiver |
| 880 | // ----------------------------------- |
| 881 | HandleScope scope; |
| 882 | Label miss; |
| 883 | |
| 884 | __ IncrementCounter(&Counters::keyed_store_field, 1); |
| 885 | |
| 886 | // Get the name from the stack. |
| 887 | __ mov(ecx, Operand(esp, 1 * kPointerSize)); |
| 888 | // Check that the name has not changed. |
| 889 | __ cmp(Operand(ecx), Immediate(Handle<String>(name))); |
| 890 | __ j(not_equal, &miss, not_taken); |
| 891 | |
| 892 | // Get the object from the stack. |
| 893 | __ mov(ebx, Operand(esp, 2 * kPointerSize)); |
| 894 | |
| 895 | // Generate store field code. Trashes the name register. |
kasperl@chromium.org | 1accd57 | 2008-10-07 10:57:21 +0000 | [diff] [blame] | 896 | GenerateStoreField(masm(), |
| 897 | Builtins::KeyedStoreIC_ExtendStorage, |
| 898 | object, |
| 899 | index, |
| 900 | transition, |
| 901 | ebx, ecx, edx, |
| 902 | &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 903 | |
| 904 | // Handle store cache miss. |
| 905 | __ bind(&miss); |
| 906 | __ DecrementCounter(&Counters::keyed_store_field, 1); |
| 907 | Handle<Code> ic(Builtins::builtin(Builtins::KeyedStoreIC_Miss)); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 908 | __ jmp(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 909 | |
| 910 | // Return the generated code. |
| 911 | return GetCode(transition == NULL ? FIELD : MAP_TRANSITION); |
| 912 | } |
| 913 | |
| 914 | |
| 915 | Object* LoadStubCompiler::CompileLoadField(JSObject* object, |
| 916 | JSObject* holder, |
| 917 | int index) { |
| 918 | // ----------- S t a t e ------------- |
| 919 | // -- ecx : name |
| 920 | // -- esp[0] : return address |
| 921 | // -- esp[4] : receiver |
| 922 | // ----------------------------------- |
| 923 | |
| 924 | HandleScope scope; |
| 925 | Label miss; |
| 926 | |
| 927 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 928 | GenerateLoadField(masm(), object, holder, eax, ebx, edx, index, &miss); |
| 929 | __ bind(&miss); |
| 930 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 931 | |
| 932 | // Return the generated code. |
| 933 | return GetCode(FIELD); |
| 934 | } |
| 935 | |
| 936 | |
| 937 | Object* LoadStubCompiler::CompileLoadCallback(JSObject* object, |
| 938 | JSObject* holder, |
| 939 | AccessorInfo* callback) { |
| 940 | // ----------- S t a t e ------------- |
| 941 | // -- ecx : name |
| 942 | // -- esp[0] : return address |
| 943 | // -- esp[4] : receiver |
| 944 | // ----------------------------------- |
| 945 | |
| 946 | HandleScope scope; |
| 947 | Label miss; |
| 948 | |
| 949 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 950 | GenerateLoadCallback(masm(), object, holder, eax, ecx, ebx, |
| 951 | edx, callback, &miss); |
| 952 | __ bind(&miss); |
| 953 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 954 | |
| 955 | // Return the generated code. |
| 956 | return GetCode(CALLBACKS); |
| 957 | } |
| 958 | |
| 959 | |
| 960 | Object* LoadStubCompiler::CompileLoadConstant(JSObject* object, |
| 961 | JSObject* holder, |
| 962 | Object* value) { |
| 963 | // ----------- S t a t e ------------- |
| 964 | // -- ecx : name |
| 965 | // -- esp[0] : return address |
| 966 | // -- esp[4] : receiver |
| 967 | // ----------------------------------- |
| 968 | |
| 969 | HandleScope scope; |
| 970 | Label miss; |
| 971 | |
| 972 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 973 | GenerateLoadConstant(masm(), object, holder, eax, ebx, edx, value, &miss); |
| 974 | __ bind(&miss); |
| 975 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 976 | |
| 977 | // Return the generated code. |
| 978 | return GetCode(CONSTANT_FUNCTION); |
| 979 | } |
| 980 | |
| 981 | |
| 982 | Object* LoadStubCompiler::CompileLoadInterceptor(JSObject* receiver, |
| 983 | JSObject* holder, |
| 984 | String* name) { |
| 985 | // ----------- S t a t e ------------- |
| 986 | // -- ecx : name |
| 987 | // -- esp[0] : return address |
| 988 | // -- esp[4] : receiver |
| 989 | // ----------------------------------- |
| 990 | HandleScope scope; |
| 991 | Label miss; |
| 992 | |
| 993 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 994 | GenerateLoadInterceptor(masm(), receiver, holder, eax, ecx, edx, ebx, &miss); |
| 995 | __ bind(&miss); |
| 996 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 997 | |
| 998 | // Return the generated code. |
| 999 | return GetCode(INTERCEPTOR); |
| 1000 | } |
| 1001 | |
| 1002 | |
| 1003 | Object* KeyedLoadStubCompiler::CompileLoadField(String* name, |
| 1004 | JSObject* receiver, |
| 1005 | JSObject* holder, |
| 1006 | int index) { |
| 1007 | // ----------- S t a t e ------------- |
| 1008 | // -- esp[0] : return address |
| 1009 | // -- esp[4] : name |
| 1010 | // -- esp[8] : receiver |
| 1011 | // ----------------------------------- |
| 1012 | HandleScope scope; |
| 1013 | Label miss; |
| 1014 | |
| 1015 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 1016 | __ mov(ecx, (Operand(esp, 2 * kPointerSize))); |
| 1017 | __ IncrementCounter(&Counters::keyed_load_field, 1); |
| 1018 | |
| 1019 | // Check that the name has not changed. |
| 1020 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 1021 | __ j(not_equal, &miss, not_taken); |
| 1022 | |
| 1023 | GenerateLoadField(masm(), receiver, holder, ecx, ebx, edx, index, &miss); |
| 1024 | __ bind(&miss); |
| 1025 | __ DecrementCounter(&Counters::keyed_load_field, 1); |
| 1026 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1027 | |
| 1028 | // Return the generated code. |
| 1029 | return GetCode(FIELD); |
| 1030 | } |
| 1031 | |
| 1032 | |
| 1033 | Object* KeyedLoadStubCompiler::CompileLoadCallback(String* name, |
| 1034 | JSObject* receiver, |
| 1035 | JSObject* holder, |
| 1036 | AccessorInfo* callback) { |
| 1037 | // ----------- S t a t e ------------- |
| 1038 | // -- esp[0] : return address |
| 1039 | // -- esp[4] : name |
| 1040 | // -- esp[8] : receiver |
| 1041 | // ----------------------------------- |
| 1042 | HandleScope scope; |
| 1043 | Label miss; |
| 1044 | |
| 1045 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 1046 | __ mov(ecx, (Operand(esp, 2 * kPointerSize))); |
| 1047 | __ IncrementCounter(&Counters::keyed_load_callback, 1); |
| 1048 | |
| 1049 | // Check that the name has not changed. |
| 1050 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 1051 | __ j(not_equal, &miss, not_taken); |
| 1052 | |
| 1053 | GenerateLoadCallback(masm(), receiver, holder, ecx, eax, ebx, edx, |
| 1054 | callback, &miss); |
| 1055 | __ bind(&miss); |
| 1056 | __ DecrementCounter(&Counters::keyed_load_callback, 1); |
| 1057 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1058 | |
| 1059 | // Return the generated code. |
| 1060 | return GetCode(CALLBACKS); |
| 1061 | } |
| 1062 | |
| 1063 | |
| 1064 | Object* KeyedLoadStubCompiler::CompileLoadConstant(String* name, |
| 1065 | JSObject* receiver, |
| 1066 | JSObject* holder, |
| 1067 | Object* value) { |
| 1068 | // ----------- S t a t e ------------- |
| 1069 | // -- esp[0] : return address |
| 1070 | // -- esp[4] : name |
| 1071 | // -- esp[8] : receiver |
| 1072 | // ----------------------------------- |
| 1073 | HandleScope scope; |
| 1074 | Label miss; |
| 1075 | |
| 1076 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 1077 | __ mov(ecx, (Operand(esp, 2 * kPointerSize))); |
| 1078 | __ IncrementCounter(&Counters::keyed_load_constant_function, 1); |
| 1079 | |
| 1080 | // Check that the name has not changed. |
| 1081 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 1082 | __ j(not_equal, &miss, not_taken); |
| 1083 | |
| 1084 | GenerateLoadConstant(masm(), receiver, holder, ecx, ebx, edx, value, &miss); |
| 1085 | __ bind(&miss); |
| 1086 | __ DecrementCounter(&Counters::keyed_load_constant_function, 1); |
| 1087 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1088 | |
| 1089 | // Return the generated code. |
| 1090 | return GetCode(CONSTANT_FUNCTION); |
| 1091 | } |
| 1092 | |
| 1093 | |
| 1094 | Object* KeyedLoadStubCompiler::CompileLoadInterceptor(JSObject* receiver, |
| 1095 | JSObject* holder, |
| 1096 | String* name) { |
| 1097 | // ----------- S t a t e ------------- |
| 1098 | // -- esp[0] : return address |
| 1099 | // -- esp[4] : name |
| 1100 | // -- esp[8] : receiver |
| 1101 | // ----------------------------------- |
| 1102 | HandleScope scope; |
| 1103 | Label miss; |
| 1104 | |
| 1105 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 1106 | __ mov(ecx, (Operand(esp, 2 * kPointerSize))); |
| 1107 | __ IncrementCounter(&Counters::keyed_load_interceptor, 1); |
| 1108 | |
| 1109 | // Check that the name has not changed. |
| 1110 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 1111 | __ j(not_equal, &miss, not_taken); |
| 1112 | |
| 1113 | GenerateLoadInterceptor(masm(), receiver, holder, ecx, eax, edx, ebx, &miss); |
| 1114 | __ bind(&miss); |
| 1115 | __ DecrementCounter(&Counters::keyed_load_interceptor, 1); |
| 1116 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1117 | |
| 1118 | // Return the generated code. |
| 1119 | return GetCode(INTERCEPTOR); |
| 1120 | } |
| 1121 | |
| 1122 | |
| 1123 | |
| 1124 | |
| 1125 | Object* KeyedLoadStubCompiler::CompileLoadArrayLength(String* name) { |
| 1126 | // ----------- S t a t e ------------- |
| 1127 | // -- esp[0] : return address |
| 1128 | // -- esp[4] : name |
| 1129 | // -- esp[8] : receiver |
| 1130 | // ----------------------------------- |
| 1131 | HandleScope scope; |
| 1132 | Label miss; |
| 1133 | |
| 1134 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 1135 | __ mov(ecx, (Operand(esp, 2 * kPointerSize))); |
| 1136 | __ IncrementCounter(&Counters::keyed_load_array_length, 1); |
| 1137 | |
| 1138 | // Check that the name has not changed. |
| 1139 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 1140 | __ j(not_equal, &miss, not_taken); |
| 1141 | |
| 1142 | GenerateLoadArrayLength(masm(), ecx, edx, &miss); |
| 1143 | __ bind(&miss); |
| 1144 | __ DecrementCounter(&Counters::keyed_load_array_length, 1); |
| 1145 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1146 | |
| 1147 | // Return the generated code. |
| 1148 | return GetCode(CALLBACKS); |
| 1149 | } |
| 1150 | |
| 1151 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 1152 | Object* KeyedLoadStubCompiler::CompileLoadStringLength(String* name) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1153 | // ----------- S t a t e ------------- |
| 1154 | // -- esp[0] : return address |
| 1155 | // -- esp[4] : name |
| 1156 | // -- esp[8] : receiver |
| 1157 | // ----------------------------------- |
| 1158 | HandleScope scope; |
| 1159 | Label miss; |
| 1160 | |
| 1161 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 1162 | __ mov(ecx, (Operand(esp, 2 * kPointerSize))); |
| 1163 | __ IncrementCounter(&Counters::keyed_load_string_length, 1); |
| 1164 | |
| 1165 | // Check that the name has not changed. |
| 1166 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 1167 | __ j(not_equal, &miss, not_taken); |
| 1168 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 1169 | GenerateLoadStringLength(masm(), ecx, edx, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1170 | __ bind(&miss); |
| 1171 | __ DecrementCounter(&Counters::keyed_load_string_length, 1); |
| 1172 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1173 | |
| 1174 | // Return the generated code. |
| 1175 | return GetCode(CALLBACKS); |
| 1176 | } |
| 1177 | |
| 1178 | |
| 1179 | Object* KeyedLoadStubCompiler::CompileLoadFunctionPrototype(String* name) { |
| 1180 | // ----------- S t a t e ------------- |
| 1181 | // -- esp[0] : return address |
| 1182 | // -- esp[4] : name |
| 1183 | // -- esp[8] : receiver |
| 1184 | // ----------------------------------- |
| 1185 | HandleScope scope; |
| 1186 | Label miss; |
| 1187 | |
| 1188 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 1189 | __ mov(ecx, (Operand(esp, 2 * kPointerSize))); |
| 1190 | __ IncrementCounter(&Counters::keyed_load_function_prototype, 1); |
| 1191 | |
| 1192 | // Check that the name has not changed. |
| 1193 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 1194 | __ j(not_equal, &miss, not_taken); |
| 1195 | |
| 1196 | GenerateLoadFunctionPrototype(masm(), ecx, edx, ebx, &miss); |
| 1197 | __ bind(&miss); |
| 1198 | __ DecrementCounter(&Counters::keyed_load_function_prototype, 1); |
| 1199 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1200 | |
| 1201 | // Return the generated code. |
| 1202 | return GetCode(CALLBACKS); |
| 1203 | } |
| 1204 | |
| 1205 | |
| 1206 | #undef __ |
| 1207 | |
| 1208 | } } // namespace v8::internal |