kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1 | // Copyright 2011 the V8 project authors. All rights reserved. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +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 | |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 30 | #if defined(V8_TARGET_ARCH_MIPS) |
| 31 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 32 | #include "ic-inl.h" |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 33 | #include "codegen.h" |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 34 | #include "stub-cache.h" |
| 35 | |
| 36 | namespace v8 { |
| 37 | namespace internal { |
| 38 | |
| 39 | #define __ ACCESS_MASM(masm) |
| 40 | |
| 41 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 42 | static void ProbeTable(Isolate* isolate, |
| 43 | MacroAssembler* masm, |
| 44 | Code::Flags flags, |
| 45 | StubCache::Table table, |
| 46 | Register name, |
| 47 | Register offset, |
| 48 | Register scratch, |
| 49 | Register scratch2) { |
| 50 | ExternalReference key_offset(isolate->stub_cache()->key_reference(table)); |
| 51 | ExternalReference value_offset(isolate->stub_cache()->value_reference(table)); |
| 52 | |
| 53 | uint32_t key_off_addr = reinterpret_cast<uint32_t>(key_offset.address()); |
| 54 | uint32_t value_off_addr = reinterpret_cast<uint32_t>(value_offset.address()); |
| 55 | |
| 56 | // Check the relative positions of the address fields. |
| 57 | ASSERT(value_off_addr > key_off_addr); |
| 58 | ASSERT((value_off_addr - key_off_addr) % 4 == 0); |
| 59 | ASSERT((value_off_addr - key_off_addr) < (256 * 4)); |
| 60 | |
| 61 | Label miss; |
| 62 | Register offsets_base_addr = scratch; |
| 63 | |
| 64 | // Check that the key in the entry matches the name. |
| 65 | __ li(offsets_base_addr, Operand(key_offset)); |
| 66 | __ sll(scratch2, offset, 1); |
| 67 | __ addu(scratch2, offsets_base_addr, scratch2); |
| 68 | __ lw(scratch2, MemOperand(scratch2)); |
| 69 | __ Branch(&miss, ne, name, Operand(scratch2)); |
| 70 | |
| 71 | // Get the code entry from the cache. |
| 72 | __ Addu(offsets_base_addr, offsets_base_addr, |
| 73 | Operand(value_off_addr - key_off_addr)); |
| 74 | __ sll(scratch2, offset, 1); |
| 75 | __ addu(scratch2, offsets_base_addr, scratch2); |
| 76 | __ lw(scratch2, MemOperand(scratch2)); |
| 77 | |
| 78 | // Check that the flags match what we're looking for. |
| 79 | __ lw(scratch2, FieldMemOperand(scratch2, Code::kFlagsOffset)); |
| 80 | __ And(scratch2, scratch2, Operand(~Code::kFlagsNotUsedInLookup)); |
| 81 | __ Branch(&miss, ne, scratch2, Operand(flags)); |
| 82 | |
| 83 | // Re-load code entry from cache. |
| 84 | __ sll(offset, offset, 1); |
| 85 | __ addu(offset, offset, offsets_base_addr); |
| 86 | __ lw(offset, MemOperand(offset)); |
| 87 | |
| 88 | // Jump to the first instruction in the code stub. |
| 89 | __ Addu(offset, offset, Operand(Code::kHeaderSize - kHeapObjectTag)); |
| 90 | __ Jump(offset); |
| 91 | |
| 92 | // Miss: fall through. |
| 93 | __ bind(&miss); |
| 94 | } |
| 95 | |
| 96 | |
| 97 | // Helper function used to check that the dictionary doesn't contain |
| 98 | // the property. This function may return false negatives, so miss_label |
| 99 | // must always call a backup property check that is complete. |
| 100 | // This function is safe to call if the receiver has fast properties. |
| 101 | // Name must be a symbol and receiver must be a heap object. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 102 | static void GenerateDictionaryNegativeLookup(MacroAssembler* masm, |
| 103 | Label* miss_label, |
| 104 | Register receiver, |
| 105 | Handle<String> name, |
| 106 | Register scratch0, |
| 107 | Register scratch1) { |
| 108 | ASSERT(name->IsSymbol()); |
| 109 | Counters* counters = masm->isolate()->counters(); |
| 110 | __ IncrementCounter(counters->negative_lookups(), 1, scratch0, scratch1); |
| 111 | __ IncrementCounter(counters->negative_lookups_miss(), 1, scratch0, scratch1); |
| 112 | |
| 113 | Label done; |
| 114 | |
| 115 | const int kInterceptorOrAccessCheckNeededMask = |
| 116 | (1 << Map::kHasNamedInterceptor) | (1 << Map::kIsAccessCheckNeeded); |
| 117 | |
| 118 | // Bail out if the receiver has a named interceptor or requires access checks. |
| 119 | Register map = scratch1; |
| 120 | __ lw(map, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 121 | __ lbu(scratch0, FieldMemOperand(map, Map::kBitFieldOffset)); |
| 122 | __ And(scratch0, scratch0, Operand(kInterceptorOrAccessCheckNeededMask)); |
| 123 | __ Branch(miss_label, ne, scratch0, Operand(zero_reg)); |
| 124 | |
| 125 | // Check that receiver is a JSObject. |
| 126 | __ lbu(scratch0, FieldMemOperand(map, Map::kInstanceTypeOffset)); |
| 127 | __ Branch(miss_label, lt, scratch0, Operand(FIRST_SPEC_OBJECT_TYPE)); |
| 128 | |
| 129 | // Load properties array. |
| 130 | Register properties = scratch0; |
| 131 | __ lw(properties, FieldMemOperand(receiver, JSObject::kPropertiesOffset)); |
| 132 | // Check that the properties array is a dictionary. |
| 133 | __ lw(map, FieldMemOperand(properties, HeapObject::kMapOffset)); |
| 134 | Register tmp = properties; |
| 135 | __ LoadRoot(tmp, Heap::kHashTableMapRootIndex); |
| 136 | __ Branch(miss_label, ne, map, Operand(tmp)); |
| 137 | |
| 138 | // Restore the temporarily used register. |
| 139 | __ lw(properties, FieldMemOperand(receiver, JSObject::kPropertiesOffset)); |
| 140 | |
| 141 | |
| 142 | StringDictionaryLookupStub::GenerateNegativeLookup(masm, |
| 143 | miss_label, |
| 144 | &done, |
| 145 | receiver, |
| 146 | properties, |
| 147 | name, |
| 148 | scratch1); |
| 149 | __ bind(&done); |
| 150 | __ DecrementCounter(counters->negative_lookups_miss(), 1, scratch0, scratch1); |
| 151 | } |
| 152 | |
| 153 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 154 | void StubCache::GenerateProbe(MacroAssembler* masm, |
| 155 | Code::Flags flags, |
| 156 | Register receiver, |
| 157 | Register name, |
| 158 | Register scratch, |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 159 | Register extra, |
| 160 | Register extra2) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 161 | Isolate* isolate = masm->isolate(); |
| 162 | Label miss; |
| 163 | |
| 164 | // Make sure that code is valid. The shifting code relies on the |
| 165 | // entry size being 8. |
| 166 | ASSERT(sizeof(Entry) == 8); |
| 167 | |
| 168 | // Make sure the flags does not name a specific type. |
| 169 | ASSERT(Code::ExtractTypeFromFlags(flags) == 0); |
| 170 | |
| 171 | // Make sure that there are no register conflicts. |
| 172 | ASSERT(!scratch.is(receiver)); |
| 173 | ASSERT(!scratch.is(name)); |
| 174 | ASSERT(!extra.is(receiver)); |
| 175 | ASSERT(!extra.is(name)); |
| 176 | ASSERT(!extra.is(scratch)); |
| 177 | ASSERT(!extra2.is(receiver)); |
| 178 | ASSERT(!extra2.is(name)); |
| 179 | ASSERT(!extra2.is(scratch)); |
| 180 | ASSERT(!extra2.is(extra)); |
| 181 | |
| 182 | // Check scratch, extra and extra2 registers are valid. |
| 183 | ASSERT(!scratch.is(no_reg)); |
| 184 | ASSERT(!extra.is(no_reg)); |
| 185 | ASSERT(!extra2.is(no_reg)); |
| 186 | |
| 187 | // Check that the receiver isn't a smi. |
| 188 | __ JumpIfSmi(receiver, &miss, t0); |
| 189 | |
| 190 | // Get the map of the receiver and compute the hash. |
| 191 | __ lw(scratch, FieldMemOperand(name, String::kHashFieldOffset)); |
| 192 | __ lw(t8, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 193 | __ Addu(scratch, scratch, Operand(t8)); |
| 194 | __ Xor(scratch, scratch, Operand(flags)); |
| 195 | __ And(scratch, |
| 196 | scratch, |
| 197 | Operand((kPrimaryTableSize - 1) << kHeapObjectTagSize)); |
| 198 | |
| 199 | // Probe the primary table. |
| 200 | ProbeTable(isolate, masm, flags, kPrimary, name, scratch, extra, extra2); |
| 201 | |
| 202 | // Primary miss: Compute hash for secondary probe. |
| 203 | __ Subu(scratch, scratch, Operand(name)); |
| 204 | __ Addu(scratch, scratch, Operand(flags)); |
| 205 | __ And(scratch, |
| 206 | scratch, |
| 207 | Operand((kSecondaryTableSize - 1) << kHeapObjectTagSize)); |
| 208 | |
| 209 | // Probe the secondary table. |
| 210 | ProbeTable(isolate, masm, flags, kSecondary, name, scratch, extra, extra2); |
| 211 | |
| 212 | // Cache miss: Fall-through and let caller handle the miss by |
| 213 | // entering the runtime system. |
| 214 | __ bind(&miss); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 215 | } |
| 216 | |
| 217 | |
| 218 | void StubCompiler::GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm, |
| 219 | int index, |
| 220 | Register prototype) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 221 | // Load the global or builtins object from the current context. |
| 222 | __ lw(prototype, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX))); |
| 223 | // Load the global context from the global or builtins object. |
| 224 | __ lw(prototype, |
| 225 | FieldMemOperand(prototype, GlobalObject::kGlobalContextOffset)); |
| 226 | // Load the function from the global context. |
| 227 | __ lw(prototype, MemOperand(prototype, Context::SlotOffset(index))); |
| 228 | // Load the initial map. The global functions all have initial maps. |
| 229 | __ lw(prototype, |
| 230 | FieldMemOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset)); |
| 231 | // Load the prototype from the initial map. |
| 232 | __ lw(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 233 | } |
| 234 | |
| 235 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 236 | void StubCompiler::GenerateDirectLoadGlobalFunctionPrototype( |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 237 | MacroAssembler* masm, |
| 238 | int index, |
| 239 | Register prototype, |
| 240 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 241 | Isolate* isolate = masm->isolate(); |
| 242 | // Check we're still in the same context. |
| 243 | __ lw(prototype, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX))); |
| 244 | ASSERT(!prototype.is(at)); |
| 245 | __ li(at, isolate->global()); |
| 246 | __ Branch(miss, ne, prototype, Operand(at)); |
| 247 | // Get the global function with the given index. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 248 | Handle<JSFunction> function( |
| 249 | JSFunction::cast(isolate->global_context()->get(index))); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 250 | // Load its initial map. The global functions all have initial maps. |
| 251 | __ li(prototype, Handle<Map>(function->initial_map())); |
| 252 | // Load the prototype from the initial map. |
| 253 | __ lw(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 254 | } |
| 255 | |
| 256 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 257 | // Load a fast property out of a holder object (src). In-object properties |
| 258 | // are loaded directly otherwise the property is loaded from the properties |
| 259 | // fixed array. |
| 260 | void StubCompiler::GenerateFastPropertyLoad(MacroAssembler* masm, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 261 | Register dst, |
| 262 | Register src, |
| 263 | Handle<JSObject> holder, |
| 264 | int index) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 265 | // Adjust for the number of properties stored in the holder. |
| 266 | index -= holder->map()->inobject_properties(); |
| 267 | if (index < 0) { |
| 268 | // Get the property straight out of the holder. |
| 269 | int offset = holder->map()->instance_size() + (index * kPointerSize); |
| 270 | __ lw(dst, FieldMemOperand(src, offset)); |
| 271 | } else { |
| 272 | // Calculate the offset into the properties array. |
| 273 | int offset = index * kPointerSize + FixedArray::kHeaderSize; |
| 274 | __ lw(dst, FieldMemOperand(src, JSObject::kPropertiesOffset)); |
| 275 | __ lw(dst, FieldMemOperand(dst, offset)); |
| 276 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 277 | } |
| 278 | |
| 279 | |
| 280 | void StubCompiler::GenerateLoadArrayLength(MacroAssembler* masm, |
| 281 | Register receiver, |
| 282 | Register scratch, |
| 283 | Label* miss_label) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 284 | // Check that the receiver isn't a smi. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 285 | __ JumpIfSmi(receiver, miss_label); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 286 | |
| 287 | // Check that the object is a JS array. |
| 288 | __ GetObjectType(receiver, scratch, scratch); |
| 289 | __ Branch(miss_label, ne, scratch, Operand(JS_ARRAY_TYPE)); |
| 290 | |
| 291 | // Load length directly from the JS array. |
| 292 | __ lw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 293 | __ Ret(); |
| 294 | } |
| 295 | |
| 296 | |
| 297 | // Generate code to check if an object is a string. If the object is a |
| 298 | // heap object, its map's instance type is left in the scratch1 register. |
| 299 | // If this is not needed, scratch1 and scratch2 may be the same register. |
| 300 | static void GenerateStringCheck(MacroAssembler* masm, |
| 301 | Register receiver, |
| 302 | Register scratch1, |
| 303 | Register scratch2, |
| 304 | Label* smi, |
| 305 | Label* non_string_object) { |
| 306 | // Check that the receiver isn't a smi. |
| 307 | __ JumpIfSmi(receiver, smi, t0); |
| 308 | |
| 309 | // Check that the object is a string. |
| 310 | __ lw(scratch1, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 311 | __ lbu(scratch1, FieldMemOperand(scratch1, Map::kInstanceTypeOffset)); |
| 312 | __ And(scratch2, scratch1, Operand(kIsNotStringMask)); |
| 313 | // The cast is to resolve the overload for the argument of 0x0. |
| 314 | __ Branch(non_string_object, |
| 315 | ne, |
| 316 | scratch2, |
| 317 | Operand(static_cast<int32_t>(kStringTag))); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 318 | } |
| 319 | |
| 320 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 321 | // Generate code to load the length from a string object and return the length. |
| 322 | // If the receiver object is not a string or a wrapped string object the |
| 323 | // execution continues at the miss label. The register containing the |
| 324 | // receiver is potentially clobbered. |
| 325 | void StubCompiler::GenerateLoadStringLength(MacroAssembler* masm, |
| 326 | Register receiver, |
| 327 | Register scratch1, |
| 328 | Register scratch2, |
| 329 | Label* miss, |
| 330 | bool support_wrappers) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 331 | Label check_wrapper; |
| 332 | |
| 333 | // Check if the object is a string leaving the instance type in the |
| 334 | // scratch1 register. |
| 335 | GenerateStringCheck(masm, receiver, scratch1, scratch2, miss, |
| 336 | support_wrappers ? &check_wrapper : miss); |
| 337 | |
| 338 | // Load length directly from the string. |
| 339 | __ lw(v0, FieldMemOperand(receiver, String::kLengthOffset)); |
| 340 | __ Ret(); |
| 341 | |
| 342 | if (support_wrappers) { |
| 343 | // Check if the object is a JSValue wrapper. |
| 344 | __ bind(&check_wrapper); |
| 345 | __ Branch(miss, ne, scratch1, Operand(JS_VALUE_TYPE)); |
| 346 | |
| 347 | // Unwrap the value and check if the wrapped value is a string. |
| 348 | __ lw(scratch1, FieldMemOperand(receiver, JSValue::kValueOffset)); |
| 349 | GenerateStringCheck(masm, scratch1, scratch2, scratch2, miss, miss); |
| 350 | __ lw(v0, FieldMemOperand(scratch1, String::kLengthOffset)); |
| 351 | __ Ret(); |
| 352 | } |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 353 | } |
| 354 | |
| 355 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 356 | void StubCompiler::GenerateLoadFunctionPrototype(MacroAssembler* masm, |
| 357 | Register receiver, |
| 358 | Register scratch1, |
| 359 | Register scratch2, |
| 360 | Label* miss_label) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 361 | __ TryGetFunctionPrototype(receiver, scratch1, scratch2, miss_label); |
| 362 | __ mov(v0, scratch1); |
| 363 | __ Ret(); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 364 | } |
| 365 | |
| 366 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 367 | // Generate StoreField code, value is passed in a0 register. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 368 | // After executing generated code, the receiver_reg and name_reg |
| 369 | // may be clobbered. |
| 370 | void StubCompiler::GenerateStoreField(MacroAssembler* masm, |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 371 | Handle<JSObject> object, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 372 | int index, |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 373 | Handle<Map> transition, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 374 | Register receiver_reg, |
| 375 | Register name_reg, |
| 376 | Register scratch, |
| 377 | Label* miss_label) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 378 | // a0 : value. |
| 379 | Label exit; |
| 380 | |
| 381 | // Check that the receiver isn't a smi. |
| 382 | __ JumpIfSmi(receiver_reg, miss_label, scratch); |
| 383 | |
| 384 | // Check that the map of the receiver hasn't changed. |
| 385 | __ lw(scratch, FieldMemOperand(receiver_reg, HeapObject::kMapOffset)); |
| 386 | __ Branch(miss_label, ne, scratch, Operand(Handle<Map>(object->map()))); |
| 387 | |
| 388 | // Perform global security token check if needed. |
| 389 | if (object->IsJSGlobalProxy()) { |
| 390 | __ CheckAccessGlobalProxy(receiver_reg, scratch, miss_label); |
| 391 | } |
| 392 | |
| 393 | // Stub never generated for non-global objects that require access |
| 394 | // checks. |
| 395 | ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded()); |
| 396 | |
| 397 | // Perform map transition for the receiver if necessary. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 398 | if (!transition.is_null() && (object->map()->unused_property_fields() == 0)) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 399 | // The properties must be extended before we can store the value. |
| 400 | // We jump to a runtime call that extends the properties array. |
| 401 | __ push(receiver_reg); |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 402 | __ li(a2, Operand(transition)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 403 | __ Push(a2, a0); |
| 404 | __ TailCallExternalReference( |
| 405 | ExternalReference(IC_Utility(IC::kSharedStoreIC_ExtendStorage), |
| 406 | masm->isolate()), |
| 407 | 3, 1); |
| 408 | return; |
| 409 | } |
| 410 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 411 | if (!transition.is_null()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 412 | // Update the map of the object; no write barrier updating is |
| 413 | // needed because the map is never in new space. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 414 | __ li(t0, Operand(transition)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 415 | __ sw(t0, FieldMemOperand(receiver_reg, HeapObject::kMapOffset)); |
| 416 | } |
| 417 | |
| 418 | // Adjust for the number of properties stored in the object. Even in the |
| 419 | // face of a transition we can use the old map here because the size of the |
| 420 | // object and the number of in-object properties is not going to change. |
| 421 | index -= object->map()->inobject_properties(); |
| 422 | |
| 423 | if (index < 0) { |
| 424 | // Set the property straight into the object. |
| 425 | int offset = object->map()->instance_size() + (index * kPointerSize); |
| 426 | __ sw(a0, FieldMemOperand(receiver_reg, offset)); |
| 427 | |
| 428 | // Skip updating write barrier if storing a smi. |
| 429 | __ JumpIfSmi(a0, &exit, scratch); |
| 430 | |
| 431 | // Update the write barrier for the array address. |
| 432 | // Pass the now unused name_reg as a scratch register. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 433 | __ mov(name_reg, a0); |
| 434 | __ RecordWriteField(receiver_reg, |
| 435 | offset, |
| 436 | name_reg, |
| 437 | scratch, |
| 438 | kRAHasNotBeenSaved, |
| 439 | kDontSaveFPRegs); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 440 | } else { |
| 441 | // Write to the properties array. |
| 442 | int offset = index * kPointerSize + FixedArray::kHeaderSize; |
| 443 | // Get the properties array. |
| 444 | __ lw(scratch, FieldMemOperand(receiver_reg, JSObject::kPropertiesOffset)); |
| 445 | __ sw(a0, FieldMemOperand(scratch, offset)); |
| 446 | |
| 447 | // Skip updating write barrier if storing a smi. |
| 448 | __ JumpIfSmi(a0, &exit); |
| 449 | |
| 450 | // Update the write barrier for the array address. |
| 451 | // Ok to clobber receiver_reg and name_reg, since we return. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 452 | __ mov(name_reg, a0); |
| 453 | __ RecordWriteField(scratch, |
| 454 | offset, |
| 455 | name_reg, |
| 456 | receiver_reg, |
| 457 | kRAHasNotBeenSaved, |
| 458 | kDontSaveFPRegs); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 459 | } |
| 460 | |
| 461 | // Return the value (register v0). |
| 462 | __ bind(&exit); |
| 463 | __ mov(v0, a0); |
| 464 | __ Ret(); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 465 | } |
| 466 | |
| 467 | |
| 468 | void StubCompiler::GenerateLoadMiss(MacroAssembler* masm, Code::Kind kind) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 469 | ASSERT(kind == Code::LOAD_IC || kind == Code::KEYED_LOAD_IC); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 470 | Handle<Code> code = (kind == Code::LOAD_IC) |
| 471 | ? masm->isolate()->builtins()->LoadIC_Miss() |
| 472 | : masm->isolate()->builtins()->KeyedLoadIC_Miss(); |
| 473 | __ Jump(code, RelocInfo::CODE_TARGET); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 474 | } |
| 475 | |
| 476 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 477 | static void GenerateCallFunction(MacroAssembler* masm, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 478 | Handle<Object> object, |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 479 | const ParameterCount& arguments, |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 480 | Label* miss, |
| 481 | Code::ExtraICState extra_ic_state) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 482 | // ----------- S t a t e ------------- |
| 483 | // -- a0: receiver |
| 484 | // -- a1: function to call |
| 485 | // ----------------------------------- |
| 486 | // Check that the function really is a function. |
| 487 | __ JumpIfSmi(a1, miss); |
| 488 | __ GetObjectType(a1, a3, a3); |
| 489 | __ Branch(miss, ne, a3, Operand(JS_FUNCTION_TYPE)); |
| 490 | |
| 491 | // Patch the receiver on the stack with the global proxy if |
| 492 | // necessary. |
| 493 | if (object->IsGlobalObject()) { |
| 494 | __ lw(a3, FieldMemOperand(a0, GlobalObject::kGlobalReceiverOffset)); |
| 495 | __ sw(a3, MemOperand(sp, arguments.immediate() * kPointerSize)); |
| 496 | } |
| 497 | |
| 498 | // Invoke the function. |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 499 | CallKind call_kind = CallICBase::Contextual::decode(extra_ic_state) |
| 500 | ? CALL_AS_FUNCTION |
| 501 | : CALL_AS_METHOD; |
| 502 | __ InvokeFunction(a1, arguments, JUMP_FUNCTION, NullCallWrapper(), call_kind); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 503 | } |
| 504 | |
| 505 | |
| 506 | static void PushInterceptorArguments(MacroAssembler* masm, |
| 507 | Register receiver, |
| 508 | Register holder, |
| 509 | Register name, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 510 | Handle<JSObject> holder_obj) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 511 | __ push(name); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 512 | Handle<InterceptorInfo> interceptor(holder_obj->GetNamedInterceptor()); |
| 513 | ASSERT(!masm->isolate()->heap()->InNewSpace(*interceptor)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 514 | Register scratch = name; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 515 | __ li(scratch, Operand(interceptor)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 516 | __ Push(scratch, receiver, holder); |
| 517 | __ lw(scratch, FieldMemOperand(scratch, InterceptorInfo::kDataOffset)); |
| 518 | __ push(scratch); |
| 519 | } |
| 520 | |
| 521 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 522 | static void CompileCallLoadPropertyWithInterceptor( |
| 523 | MacroAssembler* masm, |
| 524 | Register receiver, |
| 525 | Register holder, |
| 526 | Register name, |
| 527 | Handle<JSObject> holder_obj) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 528 | PushInterceptorArguments(masm, receiver, holder, name, holder_obj); |
| 529 | |
| 530 | ExternalReference ref = |
| 531 | ExternalReference(IC_Utility(IC::kLoadPropertyWithInterceptorOnly), |
| 532 | masm->isolate()); |
| 533 | __ li(a0, Operand(5)); |
| 534 | __ li(a1, Operand(ref)); |
| 535 | |
| 536 | CEntryStub stub(1); |
| 537 | __ CallStub(&stub); |
| 538 | } |
| 539 | |
| 540 | |
| 541 | static const int kFastApiCallArguments = 3; |
| 542 | |
| 543 | |
| 544 | // Reserves space for the extra arguments to FastHandleApiCall in the |
| 545 | // caller's frame. |
| 546 | // |
| 547 | // These arguments are set by CheckPrototypes and GenerateFastApiDirectCall. |
| 548 | static void ReserveSpaceForFastApiCall(MacroAssembler* masm, |
| 549 | Register scratch) { |
| 550 | ASSERT(Smi::FromInt(0) == 0); |
| 551 | for (int i = 0; i < kFastApiCallArguments; i++) { |
| 552 | __ push(zero_reg); |
| 553 | } |
| 554 | } |
| 555 | |
| 556 | |
| 557 | // Undoes the effects of ReserveSpaceForFastApiCall. |
| 558 | static void FreeSpaceForFastApiCall(MacroAssembler* masm) { |
| 559 | __ Drop(kFastApiCallArguments); |
| 560 | } |
| 561 | |
| 562 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 563 | static void GenerateFastApiDirectCall(MacroAssembler* masm, |
| 564 | const CallOptimization& optimization, |
| 565 | int argc) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 566 | // ----------- S t a t e ------------- |
| 567 | // -- sp[0] : holder (set by CheckPrototypes) |
| 568 | // -- sp[4] : callee js function |
| 569 | // -- sp[8] : call data |
| 570 | // -- sp[12] : last js argument |
| 571 | // -- ... |
| 572 | // -- sp[(argc + 3) * 4] : first js argument |
| 573 | // -- sp[(argc + 4) * 4] : receiver |
| 574 | // ----------------------------------- |
| 575 | // Get the function and setup the context. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 576 | Handle<JSFunction> function = optimization.constant_function(); |
| 577 | __ li(t1, Operand(function)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 578 | __ lw(cp, FieldMemOperand(t1, JSFunction::kContextOffset)); |
| 579 | |
| 580 | // Pass the additional arguments FastHandleApiCall expects. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 581 | Handle<CallHandlerInfo> api_call_info = optimization.api_call_info(); |
| 582 | Handle<Object> call_data(api_call_info->data()); |
| 583 | if (masm->isolate()->heap()->InNewSpace(*call_data)) { |
| 584 | __ li(a0, api_call_info); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 585 | __ lw(t2, FieldMemOperand(a0, CallHandlerInfo::kDataOffset)); |
| 586 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 587 | __ li(t2, call_data); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 588 | } |
| 589 | |
| 590 | // Store js function and call data. |
| 591 | __ sw(t1, MemOperand(sp, 1 * kPointerSize)); |
| 592 | __ sw(t2, MemOperand(sp, 2 * kPointerSize)); |
| 593 | |
| 594 | // a2 points to call data as expected by Arguments |
| 595 | // (refer to layout above). |
| 596 | __ Addu(a2, sp, Operand(2 * kPointerSize)); |
| 597 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 598 | const int kApiStackSpace = 4; |
| 599 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 600 | FrameScope frame_scope(masm, StackFrame::MANUAL); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 601 | __ EnterExitFrame(false, kApiStackSpace); |
| 602 | |
| 603 | // NOTE: the O32 abi requires a0 to hold a special pointer when returning a |
| 604 | // struct from the function (which is currently the case). This means we pass |
| 605 | // the first argument in a1 instead of a0. TryCallApiFunctionAndReturn |
| 606 | // will handle setting up a0. |
| 607 | |
| 608 | // a1 = v8::Arguments& |
| 609 | // Arguments is built at sp + 1 (sp is a reserved spot for ra). |
| 610 | __ Addu(a1, sp, kPointerSize); |
| 611 | |
| 612 | // v8::Arguments::implicit_args = data |
| 613 | __ sw(a2, MemOperand(a1, 0 * kPointerSize)); |
| 614 | // v8::Arguments::values = last argument |
| 615 | __ Addu(t0, a2, Operand(argc * kPointerSize)); |
| 616 | __ sw(t0, MemOperand(a1, 1 * kPointerSize)); |
| 617 | // v8::Arguments::length_ = argc |
| 618 | __ li(t0, Operand(argc)); |
| 619 | __ sw(t0, MemOperand(a1, 2 * kPointerSize)); |
| 620 | // v8::Arguments::is_construct_call = 0 |
| 621 | __ sw(zero_reg, MemOperand(a1, 3 * kPointerSize)); |
| 622 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 623 | const int kStackUnwindSpace = argc + kFastApiCallArguments + 1; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 624 | Address function_address = v8::ToCData<Address>(api_call_info->callback()); |
| 625 | ApiFunction fun(function_address); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 626 | ExternalReference ref = |
| 627 | ExternalReference(&fun, |
| 628 | ExternalReference::DIRECT_API_CALL, |
| 629 | masm->isolate()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 630 | AllowExternalCallThatCantCauseGC scope(masm); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 631 | __ CallApiFunctionAndReturn(ref, kStackUnwindSpace); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 632 | } |
| 633 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 634 | class CallInterceptorCompiler BASE_EMBEDDED { |
| 635 | public: |
| 636 | CallInterceptorCompiler(StubCompiler* stub_compiler, |
| 637 | const ParameterCount& arguments, |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 638 | Register name, |
| 639 | Code::ExtraICState extra_ic_state) |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 640 | : stub_compiler_(stub_compiler), |
| 641 | arguments_(arguments), |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 642 | name_(name), |
| 643 | extra_ic_state_(extra_ic_state) {} |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 644 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 645 | void Compile(MacroAssembler* masm, |
| 646 | Handle<JSObject> object, |
| 647 | Handle<JSObject> holder, |
| 648 | Handle<String> name, |
| 649 | LookupResult* lookup, |
| 650 | Register receiver, |
| 651 | Register scratch1, |
| 652 | Register scratch2, |
| 653 | Register scratch3, |
| 654 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 655 | ASSERT(holder->HasNamedInterceptor()); |
| 656 | ASSERT(!holder->GetNamedInterceptor()->getter()->IsUndefined()); |
| 657 | |
| 658 | // Check that the receiver isn't a smi. |
| 659 | __ JumpIfSmi(receiver, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 660 | CallOptimization optimization(lookup); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 661 | if (optimization.is_constant_call()) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 662 | CompileCacheable(masm, object, receiver, scratch1, scratch2, scratch3, |
| 663 | holder, lookup, name, optimization, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 664 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 665 | CompileRegular(masm, object, receiver, scratch1, scratch2, scratch3, |
| 666 | name, holder, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 667 | } |
| 668 | } |
| 669 | |
| 670 | private: |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 671 | void CompileCacheable(MacroAssembler* masm, |
| 672 | Handle<JSObject> object, |
| 673 | Register receiver, |
| 674 | Register scratch1, |
| 675 | Register scratch2, |
| 676 | Register scratch3, |
| 677 | Handle<JSObject> interceptor_holder, |
| 678 | LookupResult* lookup, |
| 679 | Handle<String> name, |
| 680 | const CallOptimization& optimization, |
| 681 | Label* miss_label) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 682 | ASSERT(optimization.is_constant_call()); |
| 683 | ASSERT(!lookup->holder()->IsGlobalObject()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 684 | Counters* counters = masm->isolate()->counters(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 685 | int depth1 = kInvalidProtoDepth; |
| 686 | int depth2 = kInvalidProtoDepth; |
| 687 | bool can_do_fast_api_call = false; |
| 688 | if (optimization.is_simple_api_call() && |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 689 | !lookup->holder()->IsGlobalObject()) { |
| 690 | depth1 = optimization.GetPrototypeDepthOfExpectedType( |
| 691 | object, interceptor_holder); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 692 | if (depth1 == kInvalidProtoDepth) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 693 | depth2 = optimization.GetPrototypeDepthOfExpectedType( |
| 694 | interceptor_holder, Handle<JSObject>(lookup->holder())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 695 | } |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 696 | can_do_fast_api_call = |
| 697 | depth1 != kInvalidProtoDepth || depth2 != kInvalidProtoDepth; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 698 | } |
| 699 | |
| 700 | __ IncrementCounter(counters->call_const_interceptor(), 1, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 701 | scratch1, scratch2); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 702 | |
| 703 | if (can_do_fast_api_call) { |
| 704 | __ IncrementCounter(counters->call_const_interceptor_fast_api(), 1, |
| 705 | scratch1, scratch2); |
| 706 | ReserveSpaceForFastApiCall(masm, scratch1); |
| 707 | } |
| 708 | |
| 709 | // Check that the maps from receiver to interceptor's holder |
| 710 | // haven't changed and thus we can invoke interceptor. |
| 711 | Label miss_cleanup; |
| 712 | Label* miss = can_do_fast_api_call ? &miss_cleanup : miss_label; |
| 713 | Register holder = |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 714 | stub_compiler_->CheckPrototypes(object, receiver, interceptor_holder, |
| 715 | scratch1, scratch2, scratch3, |
| 716 | name, depth1, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 717 | |
| 718 | // Invoke an interceptor and if it provides a value, |
| 719 | // branch to |regular_invoke|. |
| 720 | Label regular_invoke; |
| 721 | LoadWithInterceptor(masm, receiver, holder, interceptor_holder, scratch2, |
| 722 | ®ular_invoke); |
| 723 | |
| 724 | // Interceptor returned nothing for this property. Try to use cached |
| 725 | // constant function. |
| 726 | |
| 727 | // Check that the maps from interceptor's holder to constant function's |
| 728 | // holder haven't changed and thus we can use cached constant function. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 729 | if (*interceptor_holder != lookup->holder()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 730 | stub_compiler_->CheckPrototypes(interceptor_holder, receiver, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 731 | Handle<JSObject>(lookup->holder()), |
| 732 | scratch1, scratch2, scratch3, |
| 733 | name, depth2, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 734 | } else { |
| 735 | // CheckPrototypes has a side effect of fetching a 'holder' |
| 736 | // for API (object which is instanceof for the signature). It's |
| 737 | // safe to omit it here, as if present, it should be fetched |
| 738 | // by the previous CheckPrototypes. |
| 739 | ASSERT(depth2 == kInvalidProtoDepth); |
| 740 | } |
| 741 | |
| 742 | // Invoke function. |
| 743 | if (can_do_fast_api_call) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 744 | GenerateFastApiDirectCall(masm, optimization, arguments_.immediate()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 745 | } else { |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 746 | CallKind call_kind = CallICBase::Contextual::decode(extra_ic_state_) |
| 747 | ? CALL_AS_FUNCTION |
| 748 | : CALL_AS_METHOD; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 749 | __ InvokeFunction(optimization.constant_function(), arguments_, |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 750 | JUMP_FUNCTION, call_kind); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 751 | } |
| 752 | |
| 753 | // Deferred code for fast API call case---clean preallocated space. |
| 754 | if (can_do_fast_api_call) { |
| 755 | __ bind(&miss_cleanup); |
| 756 | FreeSpaceForFastApiCall(masm); |
| 757 | __ Branch(miss_label); |
| 758 | } |
| 759 | |
| 760 | // Invoke a regular function. |
| 761 | __ bind(®ular_invoke); |
| 762 | if (can_do_fast_api_call) { |
| 763 | FreeSpaceForFastApiCall(masm); |
| 764 | } |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 765 | } |
| 766 | |
| 767 | void CompileRegular(MacroAssembler* masm, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 768 | Handle<JSObject> object, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 769 | Register receiver, |
| 770 | Register scratch1, |
| 771 | Register scratch2, |
| 772 | Register scratch3, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 773 | Handle<String> name, |
| 774 | Handle<JSObject> interceptor_holder, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 775 | Label* miss_label) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 776 | Register holder = |
| 777 | stub_compiler_->CheckPrototypes(object, receiver, interceptor_holder, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 778 | scratch1, scratch2, scratch3, |
| 779 | name, miss_label); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 780 | |
| 781 | // Call a runtime function to load the interceptor property. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 782 | FrameScope scope(masm, StackFrame::INTERNAL); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 783 | // Save the name_ register across the call. |
| 784 | __ push(name_); |
| 785 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 786 | PushInterceptorArguments(masm, receiver, holder, name_, interceptor_holder); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 787 | |
| 788 | __ CallExternalReference( |
| 789 | ExternalReference( |
| 790 | IC_Utility(IC::kLoadPropertyWithInterceptorForCall), |
| 791 | masm->isolate()), |
| 792 | 5); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 793 | // Restore the name_ register. |
| 794 | __ pop(name_); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 795 | // Leave the internal frame. |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 796 | } |
| 797 | |
| 798 | void LoadWithInterceptor(MacroAssembler* masm, |
| 799 | Register receiver, |
| 800 | Register holder, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 801 | Handle<JSObject> holder_obj, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 802 | Register scratch, |
| 803 | Label* interceptor_succeeded) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 804 | { |
| 805 | FrameScope scope(masm, StackFrame::INTERNAL); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 806 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 807 | __ Push(holder, name_); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 808 | CompileCallLoadPropertyWithInterceptor(masm, |
| 809 | receiver, |
| 810 | holder, |
| 811 | name_, |
| 812 | holder_obj); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 813 | __ pop(name_); // Restore the name. |
| 814 | __ pop(receiver); // Restore the holder. |
| 815 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 816 | // If interceptor returns no-result sentinel, call the constant function. |
| 817 | __ LoadRoot(scratch, Heap::kNoInterceptorResultSentinelRootIndex); |
| 818 | __ Branch(interceptor_succeeded, ne, v0, Operand(scratch)); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 819 | } |
| 820 | |
| 821 | StubCompiler* stub_compiler_; |
| 822 | const ParameterCount& arguments_; |
| 823 | Register name_; |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 824 | Code::ExtraICState extra_ic_state_; |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 825 | }; |
| 826 | |
| 827 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 828 | |
| 829 | // Generate code to check that a global property cell is empty. Create |
| 830 | // the property cell at compilation time if no cell exists for the |
| 831 | // property. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 832 | static void GenerateCheckPropertyCell(MacroAssembler* masm, |
| 833 | Handle<GlobalObject> global, |
| 834 | Handle<String> name, |
| 835 | Register scratch, |
| 836 | Label* miss) { |
| 837 | Handle<JSGlobalPropertyCell> cell = |
| 838 | GlobalObject::EnsurePropertyCell(global, name); |
| 839 | ASSERT(cell->value()->IsTheHole()); |
| 840 | __ li(scratch, Operand(cell)); |
| 841 | __ lw(scratch, |
| 842 | FieldMemOperand(scratch, JSGlobalPropertyCell::kValueOffset)); |
| 843 | __ LoadRoot(at, Heap::kTheHoleValueRootIndex); |
| 844 | __ Branch(miss, ne, scratch, Operand(at)); |
| 845 | } |
| 846 | |
| 847 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 848 | // Calls GenerateCheckPropertyCell for each global object in the prototype chain |
| 849 | // from object to (but not including) holder. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 850 | static void GenerateCheckPropertyCells(MacroAssembler* masm, |
| 851 | Handle<JSObject> object, |
| 852 | Handle<JSObject> holder, |
| 853 | Handle<String> name, |
| 854 | Register scratch, |
| 855 | Label* miss) { |
| 856 | Handle<JSObject> current = object; |
| 857 | while (!current.is_identical_to(holder)) { |
| 858 | if (current->IsGlobalObject()) { |
| 859 | GenerateCheckPropertyCell(masm, |
| 860 | Handle<GlobalObject>::cast(current), |
| 861 | name, |
| 862 | scratch, |
| 863 | miss); |
| 864 | } |
| 865 | current = Handle<JSObject>(JSObject::cast(current->GetPrototype())); |
| 866 | } |
| 867 | } |
| 868 | |
| 869 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 870 | // Convert and store int passed in register ival to IEEE 754 single precision |
| 871 | // floating point value at memory location (dst + 4 * wordoffset) |
| 872 | // If FPU is available use it for conversion. |
| 873 | static void StoreIntAsFloat(MacroAssembler* masm, |
| 874 | Register dst, |
| 875 | Register wordoffset, |
| 876 | Register ival, |
| 877 | Register fval, |
| 878 | Register scratch1, |
| 879 | Register scratch2) { |
| 880 | if (CpuFeatures::IsSupported(FPU)) { |
| 881 | CpuFeatures::Scope scope(FPU); |
| 882 | __ mtc1(ival, f0); |
| 883 | __ cvt_s_w(f0, f0); |
| 884 | __ sll(scratch1, wordoffset, 2); |
| 885 | __ addu(scratch1, dst, scratch1); |
| 886 | __ swc1(f0, MemOperand(scratch1, 0)); |
| 887 | } else { |
| 888 | // FPU is not available, do manual conversions. |
| 889 | |
| 890 | Label not_special, done; |
| 891 | // Move sign bit from source to destination. This works because the sign |
| 892 | // bit in the exponent word of the double has the same position and polarity |
| 893 | // as the 2's complement sign bit in a Smi. |
| 894 | ASSERT(kBinary32SignMask == 0x80000000u); |
| 895 | |
| 896 | __ And(fval, ival, Operand(kBinary32SignMask)); |
| 897 | // Negate value if it is negative. |
| 898 | __ subu(scratch1, zero_reg, ival); |
| 899 | __ movn(ival, scratch1, fval); |
| 900 | |
| 901 | // We have -1, 0 or 1, which we treat specially. Register ival contains |
| 902 | // absolute value: it is either equal to 1 (special case of -1 and 1), |
| 903 | // greater than 1 (not a special case) or less than 1 (special case of 0). |
| 904 | __ Branch(¬_special, gt, ival, Operand(1)); |
| 905 | |
| 906 | // For 1 or -1 we need to or in the 0 exponent (biased). |
| 907 | static const uint32_t exponent_word_for_1 = |
| 908 | kBinary32ExponentBias << kBinary32ExponentShift; |
| 909 | |
| 910 | __ Xor(scratch1, ival, Operand(1)); |
| 911 | __ li(scratch2, exponent_word_for_1); |
| 912 | __ or_(scratch2, fval, scratch2); |
| 913 | __ movz(fval, scratch2, scratch1); // Only if ival is equal to 1. |
| 914 | __ Branch(&done); |
| 915 | |
| 916 | __ bind(¬_special); |
| 917 | // Count leading zeros. |
| 918 | // Gets the wrong answer for 0, but we already checked for that case above. |
| 919 | Register zeros = scratch2; |
| 920 | __ clz(zeros, ival); |
| 921 | |
| 922 | // Compute exponent and or it into the exponent register. |
| 923 | __ li(scratch1, (kBitsPerInt - 1) + kBinary32ExponentBias); |
| 924 | __ subu(scratch1, scratch1, zeros); |
| 925 | |
| 926 | __ sll(scratch1, scratch1, kBinary32ExponentShift); |
| 927 | __ or_(fval, fval, scratch1); |
| 928 | |
| 929 | // Shift up the source chopping the top bit off. |
| 930 | __ Addu(zeros, zeros, Operand(1)); |
| 931 | // This wouldn't work for 1 and -1 as the shift would be 32 which means 0. |
| 932 | __ sllv(ival, ival, zeros); |
| 933 | // And the top (top 20 bits). |
| 934 | __ srl(scratch1, ival, kBitsPerInt - kBinary32MantissaBits); |
| 935 | __ or_(fval, fval, scratch1); |
| 936 | |
| 937 | __ bind(&done); |
| 938 | |
| 939 | __ sll(scratch1, wordoffset, 2); |
| 940 | __ addu(scratch1, dst, scratch1); |
| 941 | __ sw(fval, MemOperand(scratch1, 0)); |
| 942 | } |
| 943 | } |
| 944 | |
| 945 | |
| 946 | // Convert unsigned integer with specified number of leading zeroes in binary |
| 947 | // representation to IEEE 754 double. |
| 948 | // Integer to convert is passed in register hiword. |
| 949 | // Resulting double is returned in registers hiword:loword. |
| 950 | // This functions does not work correctly for 0. |
| 951 | static void GenerateUInt2Double(MacroAssembler* masm, |
| 952 | Register hiword, |
| 953 | Register loword, |
| 954 | Register scratch, |
| 955 | int leading_zeroes) { |
| 956 | const int meaningful_bits = kBitsPerInt - leading_zeroes - 1; |
| 957 | const int biased_exponent = HeapNumber::kExponentBias + meaningful_bits; |
| 958 | |
| 959 | const int mantissa_shift_for_hi_word = |
| 960 | meaningful_bits - HeapNumber::kMantissaBitsInTopWord; |
| 961 | |
| 962 | const int mantissa_shift_for_lo_word = |
| 963 | kBitsPerInt - mantissa_shift_for_hi_word; |
| 964 | |
| 965 | __ li(scratch, biased_exponent << HeapNumber::kExponentShift); |
| 966 | if (mantissa_shift_for_hi_word > 0) { |
| 967 | __ sll(loword, hiword, mantissa_shift_for_lo_word); |
| 968 | __ srl(hiword, hiword, mantissa_shift_for_hi_word); |
| 969 | __ or_(hiword, scratch, hiword); |
| 970 | } else { |
| 971 | __ mov(loword, zero_reg); |
| 972 | __ sll(hiword, hiword, mantissa_shift_for_hi_word); |
| 973 | __ or_(hiword, scratch, hiword); |
| 974 | } |
| 975 | |
| 976 | // If least significant bit of biased exponent was not 1 it was corrupted |
| 977 | // by most significant bit of mantissa so we should fix that. |
| 978 | if (!(biased_exponent & 1)) { |
| 979 | __ li(scratch, 1 << HeapNumber::kExponentShift); |
| 980 | __ nor(scratch, scratch, scratch); |
| 981 | __ and_(hiword, hiword, scratch); |
| 982 | } |
| 983 | } |
| 984 | |
| 985 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 986 | #undef __ |
| 987 | #define __ ACCESS_MASM(masm()) |
| 988 | |
| 989 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 990 | Register StubCompiler::CheckPrototypes(Handle<JSObject> object, |
| 991 | Register object_reg, |
| 992 | Handle<JSObject> holder, |
| 993 | Register holder_reg, |
| 994 | Register scratch1, |
| 995 | Register scratch2, |
| 996 | Handle<String> name, |
| 997 | int save_at_depth, |
| 998 | Label* miss) { |
| 999 | // Make sure there's no overlap between holder and object registers. |
| 1000 | ASSERT(!scratch1.is(object_reg) && !scratch1.is(holder_reg)); |
| 1001 | ASSERT(!scratch2.is(object_reg) && !scratch2.is(holder_reg) |
| 1002 | && !scratch2.is(scratch1)); |
| 1003 | |
| 1004 | // Keep track of the current object in register reg. |
| 1005 | Register reg = object_reg; |
| 1006 | int depth = 0; |
| 1007 | |
| 1008 | if (save_at_depth == depth) { |
| 1009 | __ sw(reg, MemOperand(sp)); |
| 1010 | } |
| 1011 | |
| 1012 | // Check the maps in the prototype chain. |
| 1013 | // Traverse the prototype chain from the object and do map checks. |
| 1014 | Handle<JSObject> current = object; |
| 1015 | while (!current.is_identical_to(holder)) { |
| 1016 | ++depth; |
| 1017 | |
| 1018 | // Only global objects and objects that do not require access |
| 1019 | // checks are allowed in stubs. |
| 1020 | ASSERT(current->IsJSGlobalProxy() || !current->IsAccessCheckNeeded()); |
| 1021 | |
| 1022 | Handle<JSObject> prototype(JSObject::cast(current->GetPrototype())); |
| 1023 | if (!current->HasFastProperties() && |
| 1024 | !current->IsJSGlobalObject() && |
| 1025 | !current->IsJSGlobalProxy()) { |
| 1026 | if (!name->IsSymbol()) { |
| 1027 | name = factory()->LookupSymbol(name); |
| 1028 | } |
| 1029 | ASSERT(current->property_dictionary()->FindEntry(*name) == |
| 1030 | StringDictionary::kNotFound); |
| 1031 | |
| 1032 | GenerateDictionaryNegativeLookup(masm(), miss, reg, name, |
| 1033 | scratch1, scratch2); |
| 1034 | |
| 1035 | __ lw(scratch1, FieldMemOperand(reg, HeapObject::kMapOffset)); |
| 1036 | reg = holder_reg; // From now on the object will be in holder_reg. |
| 1037 | __ lw(reg, FieldMemOperand(scratch1, Map::kPrototypeOffset)); |
| 1038 | } else { |
| 1039 | Handle<Map> current_map(current->map()); |
| 1040 | __ lw(scratch1, FieldMemOperand(reg, HeapObject::kMapOffset)); |
| 1041 | // Branch on the result of the map check. |
| 1042 | __ Branch(miss, ne, scratch1, Operand(current_map)); |
| 1043 | // Check access rights to the global object. This has to happen after |
| 1044 | // the map check so that we know that the object is actually a global |
| 1045 | // object. |
| 1046 | if (current->IsJSGlobalProxy()) { |
| 1047 | __ CheckAccessGlobalProxy(reg, scratch2, miss); |
| 1048 | } |
| 1049 | reg = holder_reg; // From now on the object will be in holder_reg. |
| 1050 | |
| 1051 | if (heap()->InNewSpace(*prototype)) { |
| 1052 | // The prototype is in new space; we cannot store a reference to it |
| 1053 | // in the code. Load it from the map. |
| 1054 | __ lw(reg, FieldMemOperand(scratch1, Map::kPrototypeOffset)); |
| 1055 | } else { |
| 1056 | // The prototype is in old space; load it directly. |
| 1057 | __ li(reg, Operand(prototype)); |
| 1058 | } |
| 1059 | } |
| 1060 | |
| 1061 | if (save_at_depth == depth) { |
| 1062 | __ sw(reg, MemOperand(sp)); |
| 1063 | } |
| 1064 | |
| 1065 | // Go to the next object in the prototype chain. |
| 1066 | current = prototype; |
| 1067 | } |
| 1068 | |
| 1069 | // Log the check depth. |
| 1070 | LOG(masm()->isolate(), IntEvent("check-maps-depth", depth + 1)); |
| 1071 | |
| 1072 | // Check the holder map. |
| 1073 | __ lw(scratch1, FieldMemOperand(reg, HeapObject::kMapOffset)); |
| 1074 | __ Branch(miss, ne, scratch1, Operand(Handle<Map>(current->map()))); |
| 1075 | |
| 1076 | // Perform security check for access to the global object. |
| 1077 | ASSERT(holder->IsJSGlobalProxy() || !holder->IsAccessCheckNeeded()); |
| 1078 | if (holder->IsJSGlobalProxy()) { |
| 1079 | __ CheckAccessGlobalProxy(reg, scratch1, miss); |
| 1080 | } |
| 1081 | |
| 1082 | // If we've skipped any global objects, it's not enough to verify that |
| 1083 | // their maps haven't changed. We also need to check that the property |
| 1084 | // cell for the property is still empty. |
| 1085 | GenerateCheckPropertyCells(masm(), object, holder, name, scratch1, miss); |
| 1086 | |
| 1087 | // Return the register containing the holder. |
| 1088 | return reg; |
| 1089 | } |
| 1090 | |
| 1091 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1092 | void StubCompiler::GenerateLoadField(Handle<JSObject> object, |
| 1093 | Handle<JSObject> holder, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1094 | Register receiver, |
| 1095 | Register scratch1, |
| 1096 | Register scratch2, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1097 | Register scratch3, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1098 | int index, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1099 | Handle<String> name, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1100 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1101 | // Check that the receiver isn't a smi. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1102 | __ JumpIfSmi(receiver, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1103 | |
| 1104 | // Check that the maps haven't changed. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1105 | Register reg = CheckPrototypes( |
| 1106 | object, receiver, holder, scratch1, scratch2, scratch3, name, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1107 | GenerateFastPropertyLoad(masm(), v0, reg, holder, index); |
| 1108 | __ Ret(); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1109 | } |
| 1110 | |
| 1111 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1112 | void StubCompiler::GenerateLoadConstant(Handle<JSObject> object, |
| 1113 | Handle<JSObject> holder, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1114 | Register receiver, |
| 1115 | Register scratch1, |
| 1116 | Register scratch2, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1117 | Register scratch3, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1118 | Handle<Object> value, |
| 1119 | Handle<String> name, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1120 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1121 | // Check that the receiver isn't a smi. |
| 1122 | __ JumpIfSmi(receiver, miss, scratch1); |
| 1123 | |
| 1124 | // Check that the maps haven't changed. |
| 1125 | Register reg = |
| 1126 | CheckPrototypes(object, receiver, holder, |
| 1127 | scratch1, scratch2, scratch3, name, miss); |
| 1128 | |
| 1129 | // Return the constant value. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1130 | __ li(v0, Operand(value)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1131 | __ Ret(); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1132 | } |
| 1133 | |
| 1134 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1135 | void StubCompiler::GenerateLoadCallback(Handle<JSObject> object, |
| 1136 | Handle<JSObject> holder, |
| 1137 | Register receiver, |
| 1138 | Register name_reg, |
| 1139 | Register scratch1, |
| 1140 | Register scratch2, |
| 1141 | Register scratch3, |
| 1142 | Handle<AccessorInfo> callback, |
| 1143 | Handle<String> name, |
| 1144 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1145 | // Check that the receiver isn't a smi. |
| 1146 | __ JumpIfSmi(receiver, miss, scratch1); |
| 1147 | |
| 1148 | // Check that the maps haven't changed. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1149 | Register reg = CheckPrototypes(object, receiver, holder, scratch1, |
| 1150 | scratch2, scratch3, name, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1151 | |
| 1152 | // Build AccessorInfo::args_ list on the stack and push property name below |
| 1153 | // the exit frame to make GC aware of them and store pointers to them. |
| 1154 | __ push(receiver); |
| 1155 | __ mov(scratch2, sp); // scratch2 = AccessorInfo::args_ |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1156 | if (heap()->InNewSpace(callback->data())) { |
| 1157 | __ li(scratch3, callback); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1158 | __ lw(scratch3, FieldMemOperand(scratch3, AccessorInfo::kDataOffset)); |
| 1159 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1160 | __ li(scratch3, Handle<Object>(callback->data())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1161 | } |
| 1162 | __ Push(reg, scratch3, name_reg); |
| 1163 | __ mov(a2, scratch2); // Saved in case scratch2 == a1. |
| 1164 | __ mov(a1, sp); // a1 (first argument - see note below) = Handle<String> |
| 1165 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1166 | // NOTE: the O32 abi requires a0 to hold a special pointer when returning a |
| 1167 | // struct from the function (which is currently the case). This means we pass |
| 1168 | // the arguments in a1-a2 instead of a0-a1. TryCallApiFunctionAndReturn |
| 1169 | // will handle setting up a0. |
| 1170 | |
| 1171 | const int kApiStackSpace = 1; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1172 | FrameScope frame_scope(masm(), StackFrame::MANUAL); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1173 | __ EnterExitFrame(false, kApiStackSpace); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1174 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1175 | // Create AccessorInfo instance on the stack above the exit frame with |
| 1176 | // scratch2 (internal::Object **args_) as the data. |
| 1177 | __ sw(a2, MemOperand(sp, kPointerSize)); |
| 1178 | // a2 (second argument - see note above) = AccessorInfo& |
| 1179 | __ Addu(a2, sp, kPointerSize); |
| 1180 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1181 | const int kStackUnwindSpace = 4; |
| 1182 | Address getter_address = v8::ToCData<Address>(callback->getter()); |
| 1183 | ApiFunction fun(getter_address); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1184 | ExternalReference ref = |
| 1185 | ExternalReference(&fun, |
| 1186 | ExternalReference::DIRECT_GETTER_CALL, |
| 1187 | masm()->isolate()); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1188 | __ CallApiFunctionAndReturn(ref, kStackUnwindSpace); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1189 | } |
| 1190 | |
| 1191 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1192 | void StubCompiler::GenerateLoadInterceptor(Handle<JSObject> object, |
| 1193 | Handle<JSObject> interceptor_holder, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1194 | LookupResult* lookup, |
| 1195 | Register receiver, |
| 1196 | Register name_reg, |
| 1197 | Register scratch1, |
| 1198 | Register scratch2, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1199 | Register scratch3, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1200 | Handle<String> name, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1201 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1202 | ASSERT(interceptor_holder->HasNamedInterceptor()); |
| 1203 | ASSERT(!interceptor_holder->GetNamedInterceptor()->getter()->IsUndefined()); |
| 1204 | |
| 1205 | // Check that the receiver isn't a smi. |
| 1206 | __ JumpIfSmi(receiver, miss); |
| 1207 | |
| 1208 | // So far the most popular follow ups for interceptor loads are FIELD |
| 1209 | // and CALLBACKS, so inline only them, other cases may be added |
| 1210 | // later. |
| 1211 | bool compile_followup_inline = false; |
| 1212 | if (lookup->IsProperty() && lookup->IsCacheable()) { |
| 1213 | if (lookup->type() == FIELD) { |
| 1214 | compile_followup_inline = true; |
| 1215 | } else if (lookup->type() == CALLBACKS && |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1216 | lookup->GetCallbackObject()->IsAccessorInfo()) { |
| 1217 | compile_followup_inline = |
| 1218 | AccessorInfo::cast(lookup->GetCallbackObject())->getter() != NULL; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1219 | } |
| 1220 | } |
| 1221 | |
| 1222 | if (compile_followup_inline) { |
| 1223 | // Compile the interceptor call, followed by inline code to load the |
| 1224 | // property from further up the prototype chain if the call fails. |
| 1225 | // Check that the maps haven't changed. |
| 1226 | Register holder_reg = CheckPrototypes(object, receiver, interceptor_holder, |
| 1227 | scratch1, scratch2, scratch3, |
| 1228 | name, miss); |
| 1229 | ASSERT(holder_reg.is(receiver) || holder_reg.is(scratch1)); |
| 1230 | |
| 1231 | // Save necessary data before invoking an interceptor. |
| 1232 | // Requires a frame to make GC aware of pushed pointers. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1233 | { |
| 1234 | FrameScope frame_scope(masm(), StackFrame::INTERNAL); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1235 | if (lookup->type() == CALLBACKS && !receiver.is(holder_reg)) { |
| 1236 | // CALLBACKS case needs a receiver to be passed into C++ callback. |
| 1237 | __ Push(receiver, holder_reg, name_reg); |
| 1238 | } else { |
| 1239 | __ Push(holder_reg, name_reg); |
| 1240 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1241 | // Invoke an interceptor. Note: map checks from receiver to |
| 1242 | // interceptor's holder has been compiled before (see a caller |
| 1243 | // of this method). |
| 1244 | CompileCallLoadPropertyWithInterceptor(masm(), |
| 1245 | receiver, |
| 1246 | holder_reg, |
| 1247 | name_reg, |
| 1248 | interceptor_holder); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1249 | // Check if interceptor provided a value for property. If it's |
| 1250 | // the case, return immediately. |
| 1251 | Label interceptor_failed; |
| 1252 | __ LoadRoot(scratch1, Heap::kNoInterceptorResultSentinelRootIndex); |
| 1253 | __ Branch(&interceptor_failed, eq, v0, Operand(scratch1)); |
| 1254 | frame_scope.GenerateLeaveFrame(); |
| 1255 | __ Ret(); |
| 1256 | |
| 1257 | __ bind(&interceptor_failed); |
| 1258 | __ pop(name_reg); |
| 1259 | __ pop(holder_reg); |
| 1260 | if (lookup->type() == CALLBACKS && !receiver.is(holder_reg)) { |
| 1261 | __ pop(receiver); |
| 1262 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1263 | // Leave the internal frame. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1264 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1265 | // Check that the maps from interceptor's holder to lookup's holder |
| 1266 | // haven't changed. And load lookup's holder into |holder| register. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1267 | if (*interceptor_holder != lookup->holder()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1268 | holder_reg = CheckPrototypes(interceptor_holder, |
| 1269 | holder_reg, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1270 | Handle<JSObject>(lookup->holder()), |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1271 | scratch1, |
| 1272 | scratch2, |
| 1273 | scratch3, |
| 1274 | name, |
| 1275 | miss); |
| 1276 | } |
| 1277 | |
| 1278 | if (lookup->type() == FIELD) { |
| 1279 | // We found FIELD property in prototype chain of interceptor's holder. |
| 1280 | // Retrieve a field from field's holder. |
| 1281 | GenerateFastPropertyLoad(masm(), v0, holder_reg, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1282 | Handle<JSObject>(lookup->holder()), |
| 1283 | lookup->GetFieldIndex()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1284 | __ Ret(); |
| 1285 | } else { |
| 1286 | // We found CALLBACKS property in prototype chain of interceptor's |
| 1287 | // holder. |
| 1288 | ASSERT(lookup->type() == CALLBACKS); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1289 | Handle<AccessorInfo> callback( |
| 1290 | AccessorInfo::cast(lookup->GetCallbackObject())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1291 | ASSERT(callback->getter() != NULL); |
| 1292 | |
| 1293 | // Tail call to runtime. |
| 1294 | // Important invariant in CALLBACKS case: the code above must be |
| 1295 | // structured to never clobber |receiver| register. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1296 | __ li(scratch2, callback); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1297 | // holder_reg is either receiver or scratch1. |
| 1298 | if (!receiver.is(holder_reg)) { |
| 1299 | ASSERT(scratch1.is(holder_reg)); |
| 1300 | __ Push(receiver, holder_reg); |
| 1301 | __ lw(scratch3, |
| 1302 | FieldMemOperand(scratch2, AccessorInfo::kDataOffset)); |
| 1303 | __ Push(scratch3, scratch2, name_reg); |
| 1304 | } else { |
| 1305 | __ push(receiver); |
| 1306 | __ lw(scratch3, |
| 1307 | FieldMemOperand(scratch2, AccessorInfo::kDataOffset)); |
| 1308 | __ Push(holder_reg, scratch3, scratch2, name_reg); |
| 1309 | } |
| 1310 | |
| 1311 | ExternalReference ref = |
| 1312 | ExternalReference(IC_Utility(IC::kLoadCallbackProperty), |
| 1313 | masm()->isolate()); |
| 1314 | __ TailCallExternalReference(ref, 5, 1); |
| 1315 | } |
| 1316 | } else { // !compile_followup_inline |
| 1317 | // Call the runtime system to load the interceptor. |
| 1318 | // Check that the maps haven't changed. |
| 1319 | Register holder_reg = CheckPrototypes(object, receiver, interceptor_holder, |
| 1320 | scratch1, scratch2, scratch3, |
| 1321 | name, miss); |
| 1322 | PushInterceptorArguments(masm(), receiver, holder_reg, |
| 1323 | name_reg, interceptor_holder); |
| 1324 | |
| 1325 | ExternalReference ref = ExternalReference( |
| 1326 | IC_Utility(IC::kLoadPropertyWithInterceptorForLoad), masm()->isolate()); |
| 1327 | __ TailCallExternalReference(ref, 5, 1); |
| 1328 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1329 | } |
| 1330 | |
| 1331 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1332 | void CallStubCompiler::GenerateNameCheck(Handle<String> name, Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1333 | if (kind_ == Code::KEYED_CALL_IC) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1334 | __ Branch(miss, ne, a2, Operand(name)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1335 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1336 | } |
| 1337 | |
| 1338 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1339 | void CallStubCompiler::GenerateGlobalReceiverCheck(Handle<JSObject> object, |
| 1340 | Handle<JSObject> holder, |
| 1341 | Handle<String> name, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1342 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1343 | ASSERT(holder->IsGlobalObject()); |
| 1344 | |
| 1345 | // Get the number of arguments. |
| 1346 | const int argc = arguments().immediate(); |
| 1347 | |
| 1348 | // Get the receiver from the stack. |
| 1349 | __ lw(a0, MemOperand(sp, argc * kPointerSize)); |
| 1350 | |
| 1351 | // If the object is the holder then we know that it's a global |
| 1352 | // object which can only happen for contextual calls. In this case, |
| 1353 | // the receiver cannot be a smi. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1354 | if (!object.is_identical_to(holder)) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1355 | __ JumpIfSmi(a0, miss); |
| 1356 | } |
| 1357 | |
| 1358 | // Check that the maps haven't changed. |
| 1359 | CheckPrototypes(object, a0, holder, a3, a1, t0, name, miss); |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 1360 | } |
| 1361 | |
| 1362 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1363 | void CallStubCompiler::GenerateLoadFunctionFromCell( |
| 1364 | Handle<JSGlobalPropertyCell> cell, |
| 1365 | Handle<JSFunction> function, |
| 1366 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1367 | // Get the value from the cell. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1368 | __ li(a3, Operand(cell)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1369 | __ lw(a1, FieldMemOperand(a3, JSGlobalPropertyCell::kValueOffset)); |
| 1370 | |
| 1371 | // Check that the cell contains the same function. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1372 | if (heap()->InNewSpace(*function)) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1373 | // We can't embed a pointer to a function in new space so we have |
| 1374 | // to verify that the shared function info is unchanged. This has |
| 1375 | // the nice side effect that multiple closures based on the same |
| 1376 | // function can all use this call IC. Before we load through the |
| 1377 | // function, we have to verify that it still is a function. |
| 1378 | __ JumpIfSmi(a1, miss); |
| 1379 | __ GetObjectType(a1, a3, a3); |
| 1380 | __ Branch(miss, ne, a3, Operand(JS_FUNCTION_TYPE)); |
| 1381 | |
| 1382 | // Check the shared function info. Make sure it hasn't changed. |
| 1383 | __ li(a3, Handle<SharedFunctionInfo>(function->shared())); |
| 1384 | __ lw(t0, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset)); |
| 1385 | __ Branch(miss, ne, t0, Operand(a3)); |
| 1386 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1387 | __ Branch(miss, ne, a1, Operand(function)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1388 | } |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 1389 | } |
| 1390 | |
| 1391 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1392 | void CallStubCompiler::GenerateMissBranch() { |
| 1393 | Handle<Code> code = |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1394 | isolate()->stub_cache()->ComputeCallMiss(arguments().immediate(), |
| 1395 | kind_, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1396 | extra_state_); |
| 1397 | __ Jump(code, RelocInfo::CODE_TARGET); |
| 1398 | } |
| 1399 | |
| 1400 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1401 | Handle<Code> CallStubCompiler::CompileCallField(Handle<JSObject> object, |
| 1402 | Handle<JSObject> holder, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1403 | int index, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1404 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1405 | // ----------- S t a t e ------------- |
| 1406 | // -- a2 : name |
| 1407 | // -- ra : return address |
| 1408 | // ----------------------------------- |
| 1409 | Label miss; |
| 1410 | |
| 1411 | GenerateNameCheck(name, &miss); |
| 1412 | |
| 1413 | const int argc = arguments().immediate(); |
| 1414 | |
| 1415 | // Get the receiver of the function from the stack into a0. |
| 1416 | __ lw(a0, MemOperand(sp, argc * kPointerSize)); |
| 1417 | // Check that the receiver isn't a smi. |
| 1418 | __ JumpIfSmi(a0, &miss, t0); |
| 1419 | |
| 1420 | // Do the right check and compute the holder register. |
| 1421 | Register reg = CheckPrototypes(object, a0, holder, a1, a3, t0, name, &miss); |
| 1422 | GenerateFastPropertyLoad(masm(), a1, reg, holder, index); |
| 1423 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1424 | GenerateCallFunction(masm(), object, arguments(), &miss, extra_state_); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1425 | |
| 1426 | // Handle call cache miss. |
| 1427 | __ bind(&miss); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1428 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1429 | |
| 1430 | // Return the generated code. |
| 1431 | return GetCode(FIELD, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1432 | } |
| 1433 | |
| 1434 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1435 | Handle<Code> CallStubCompiler::CompileArrayPushCall( |
| 1436 | Handle<Object> object, |
| 1437 | Handle<JSObject> holder, |
| 1438 | Handle<JSGlobalPropertyCell> cell, |
| 1439 | Handle<JSFunction> function, |
| 1440 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1441 | // ----------- S t a t e ------------- |
| 1442 | // -- a2 : name |
| 1443 | // -- ra : return address |
| 1444 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 1445 | // -- ... |
| 1446 | // -- sp[argc * 4] : receiver |
| 1447 | // ----------------------------------- |
| 1448 | |
| 1449 | // If object is not an array, bail out to regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1450 | if (!object->IsJSArray() || !cell.is_null()) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1451 | |
| 1452 | Label miss; |
| 1453 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1454 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1455 | |
| 1456 | Register receiver = a1; |
| 1457 | |
| 1458 | // Get the receiver from the stack. |
| 1459 | const int argc = arguments().immediate(); |
| 1460 | __ lw(receiver, MemOperand(sp, argc * kPointerSize)); |
| 1461 | |
| 1462 | // Check that the receiver isn't a smi. |
| 1463 | __ JumpIfSmi(receiver, &miss); |
| 1464 | |
| 1465 | // Check that the maps haven't changed. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1466 | CheckPrototypes(Handle<JSObject>::cast(object), receiver, holder, a3, v0, t0, |
| 1467 | name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1468 | |
| 1469 | if (argc == 0) { |
| 1470 | // Nothing to do, just return the length. |
| 1471 | __ lw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1472 | __ Drop(argc + 1); |
| 1473 | __ Ret(); |
| 1474 | } else { |
| 1475 | Label call_builtin; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1476 | Register elements = a3; |
| 1477 | Register end_elements = t1; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1478 | // Get the elements array of the object. |
| 1479 | __ lw(elements, FieldMemOperand(receiver, JSArray::kElementsOffset)); |
| 1480 | |
| 1481 | // Check that the elements are in fast mode and writable. |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1482 | __ CheckMap(elements, |
| 1483 | v0, |
| 1484 | Heap::kFixedArrayMapRootIndex, |
| 1485 | &call_builtin, |
| 1486 | DONT_DO_SMI_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1487 | |
| 1488 | if (argc == 1) { // Otherwise fall through to call the builtin. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1489 | Label attempt_to_grow_elements; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1490 | |
| 1491 | // Get the array's length into v0 and calculate new length. |
| 1492 | __ lw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1493 | STATIC_ASSERT(kSmiTagSize == 1); |
| 1494 | STATIC_ASSERT(kSmiTag == 0); |
| 1495 | __ Addu(v0, v0, Operand(Smi::FromInt(argc))); |
| 1496 | |
| 1497 | // Get the element's length. |
| 1498 | __ lw(t0, FieldMemOperand(elements, FixedArray::kLengthOffset)); |
| 1499 | |
| 1500 | // Check if we could survive without allocation. |
| 1501 | __ Branch(&attempt_to_grow_elements, gt, v0, Operand(t0)); |
| 1502 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1503 | // Check if value is a smi. |
| 1504 | Label with_write_barrier; |
| 1505 | __ lw(t0, MemOperand(sp, (argc - 1) * kPointerSize)); |
| 1506 | __ JumpIfNotSmi(t0, &with_write_barrier); |
| 1507 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1508 | // Save new length. |
| 1509 | __ sw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1510 | |
| 1511 | // Push the element. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1512 | // We may need a register containing the address end_elements below, |
| 1513 | // so write back the value in end_elements. |
| 1514 | __ sll(end_elements, v0, kPointerSizeLog2 - kSmiTagSize); |
| 1515 | __ Addu(end_elements, elements, end_elements); |
| 1516 | const int kEndElementsOffset = |
| 1517 | FixedArray::kHeaderSize - kHeapObjectTag - argc * kPointerSize; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1518 | __ Addu(end_elements, end_elements, kEndElementsOffset); |
| 1519 | __ sw(t0, MemOperand(end_elements)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1520 | |
| 1521 | // Check for a smi. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1522 | __ Drop(argc + 1); |
| 1523 | __ Ret(); |
| 1524 | |
| 1525 | __ bind(&with_write_barrier); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1526 | |
| 1527 | __ lw(t2, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1528 | __ CheckFastObjectElements(t2, t2, &call_builtin); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1529 | |
| 1530 | // Save new length. |
| 1531 | __ sw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1532 | |
| 1533 | // Push the element. |
| 1534 | // We may need a register containing the address end_elements below, |
| 1535 | // so write back the value in end_elements. |
| 1536 | __ sll(end_elements, v0, kPointerSizeLog2 - kSmiTagSize); |
| 1537 | __ Addu(end_elements, elements, end_elements); |
| 1538 | __ Addu(end_elements, end_elements, kEndElementsOffset); |
| 1539 | __ sw(t0, MemOperand(end_elements)); |
| 1540 | |
| 1541 | __ RecordWrite(elements, |
| 1542 | end_elements, |
| 1543 | t0, |
| 1544 | kRAHasNotBeenSaved, |
| 1545 | kDontSaveFPRegs, |
| 1546 | EMIT_REMEMBERED_SET, |
| 1547 | OMIT_SMI_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1548 | __ Drop(argc + 1); |
| 1549 | __ Ret(); |
| 1550 | |
| 1551 | __ bind(&attempt_to_grow_elements); |
| 1552 | // v0: array's length + 1. |
| 1553 | // t0: elements' length. |
| 1554 | |
| 1555 | if (!FLAG_inline_new) { |
| 1556 | __ Branch(&call_builtin); |
| 1557 | } |
| 1558 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1559 | __ lw(a2, MemOperand(sp, (argc - 1) * kPointerSize)); |
| 1560 | // Growing elements that are SMI-only requires special handling in case |
| 1561 | // the new element is non-Smi. For now, delegate to the builtin. |
| 1562 | Label no_fast_elements_check; |
| 1563 | __ JumpIfSmi(a2, &no_fast_elements_check); |
| 1564 | __ lw(t3, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 1565 | __ CheckFastObjectElements(t3, t3, &call_builtin); |
| 1566 | __ bind(&no_fast_elements_check); |
| 1567 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1568 | ExternalReference new_space_allocation_top = |
| 1569 | ExternalReference::new_space_allocation_top_address( |
| 1570 | masm()->isolate()); |
| 1571 | ExternalReference new_space_allocation_limit = |
| 1572 | ExternalReference::new_space_allocation_limit_address( |
| 1573 | masm()->isolate()); |
| 1574 | |
| 1575 | const int kAllocationDelta = 4; |
| 1576 | // Load top and check if it is the end of elements. |
| 1577 | __ sll(end_elements, v0, kPointerSizeLog2 - kSmiTagSize); |
| 1578 | __ Addu(end_elements, elements, end_elements); |
| 1579 | __ Addu(end_elements, end_elements, Operand(kEndElementsOffset)); |
| 1580 | __ li(t3, Operand(new_space_allocation_top)); |
| 1581 | __ lw(t2, MemOperand(t3)); |
| 1582 | __ Branch(&call_builtin, ne, end_elements, Operand(t2)); |
| 1583 | |
| 1584 | __ li(t5, Operand(new_space_allocation_limit)); |
| 1585 | __ lw(t5, MemOperand(t5)); |
| 1586 | __ Addu(t2, t2, Operand(kAllocationDelta * kPointerSize)); |
| 1587 | __ Branch(&call_builtin, hi, t2, Operand(t5)); |
| 1588 | |
| 1589 | // We fit and could grow elements. |
| 1590 | // Update new_space_allocation_top. |
| 1591 | __ sw(t2, MemOperand(t3)); |
| 1592 | // Push the argument. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1593 | __ sw(a2, MemOperand(end_elements)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1594 | // Fill the rest with holes. |
| 1595 | __ LoadRoot(t2, Heap::kTheHoleValueRootIndex); |
| 1596 | for (int i = 1; i < kAllocationDelta; i++) { |
| 1597 | __ sw(t2, MemOperand(end_elements, i * kPointerSize)); |
| 1598 | } |
| 1599 | |
| 1600 | // Update elements' and array's sizes. |
| 1601 | __ sw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1602 | __ Addu(t0, t0, Operand(Smi::FromInt(kAllocationDelta))); |
| 1603 | __ sw(t0, FieldMemOperand(elements, FixedArray::kLengthOffset)); |
| 1604 | |
| 1605 | // Elements are in new space, so write barrier is not required. |
| 1606 | __ Drop(argc + 1); |
| 1607 | __ Ret(); |
| 1608 | } |
| 1609 | __ bind(&call_builtin); |
| 1610 | __ TailCallExternalReference(ExternalReference(Builtins::c_ArrayPush, |
| 1611 | masm()->isolate()), |
| 1612 | argc + 1, |
| 1613 | 1); |
| 1614 | } |
| 1615 | |
| 1616 | // Handle call cache miss. |
| 1617 | __ bind(&miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1618 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1619 | |
| 1620 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1621 | return GetCode(function); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1622 | } |
| 1623 | |
| 1624 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1625 | Handle<Code> CallStubCompiler::CompileArrayPopCall( |
| 1626 | Handle<Object> object, |
| 1627 | Handle<JSObject> holder, |
| 1628 | Handle<JSGlobalPropertyCell> cell, |
| 1629 | Handle<JSFunction> function, |
| 1630 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1631 | // ----------- S t a t e ------------- |
| 1632 | // -- a2 : name |
| 1633 | // -- ra : return address |
| 1634 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 1635 | // -- ... |
| 1636 | // -- sp[argc * 4] : receiver |
| 1637 | // ----------------------------------- |
| 1638 | |
| 1639 | // If object is not an array, bail out to regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1640 | if (!object->IsJSArray() || !cell.is_null()) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1641 | |
| 1642 | Label miss, return_undefined, call_builtin; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1643 | Register receiver = a1; |
| 1644 | Register elements = a3; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1645 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1646 | |
| 1647 | // Get the receiver from the stack. |
| 1648 | const int argc = arguments().immediate(); |
| 1649 | __ lw(receiver, MemOperand(sp, argc * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1650 | // Check that the receiver isn't a smi. |
| 1651 | __ JumpIfSmi(receiver, &miss); |
| 1652 | |
| 1653 | // Check that the maps haven't changed. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1654 | CheckPrototypes(Handle<JSObject>::cast(object), receiver, holder, elements, |
| 1655 | t0, v0, name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1656 | |
| 1657 | // Get the elements array of the object. |
| 1658 | __ lw(elements, FieldMemOperand(receiver, JSArray::kElementsOffset)); |
| 1659 | |
| 1660 | // Check that the elements are in fast mode and writable. |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1661 | __ CheckMap(elements, |
| 1662 | v0, |
| 1663 | Heap::kFixedArrayMapRootIndex, |
| 1664 | &call_builtin, |
| 1665 | DONT_DO_SMI_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1666 | |
| 1667 | // Get the array's length into t0 and calculate new length. |
| 1668 | __ lw(t0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1669 | __ Subu(t0, t0, Operand(Smi::FromInt(1))); |
| 1670 | __ Branch(&return_undefined, lt, t0, Operand(zero_reg)); |
| 1671 | |
| 1672 | // Get the last element. |
| 1673 | __ LoadRoot(t2, Heap::kTheHoleValueRootIndex); |
| 1674 | STATIC_ASSERT(kSmiTagSize == 1); |
| 1675 | STATIC_ASSERT(kSmiTag == 0); |
| 1676 | // We can't address the last element in one operation. Compute the more |
| 1677 | // expensive shift first, and use an offset later on. |
| 1678 | __ sll(t1, t0, kPointerSizeLog2 - kSmiTagSize); |
| 1679 | __ Addu(elements, elements, t1); |
| 1680 | __ lw(v0, MemOperand(elements, FixedArray::kHeaderSize - kHeapObjectTag)); |
| 1681 | __ Branch(&call_builtin, eq, v0, Operand(t2)); |
| 1682 | |
| 1683 | // Set the array's length. |
| 1684 | __ sw(t0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1685 | |
| 1686 | // Fill with the hole. |
| 1687 | __ sw(t2, MemOperand(elements, FixedArray::kHeaderSize - kHeapObjectTag)); |
| 1688 | __ Drop(argc + 1); |
| 1689 | __ Ret(); |
| 1690 | |
| 1691 | __ bind(&return_undefined); |
| 1692 | __ LoadRoot(v0, Heap::kUndefinedValueRootIndex); |
| 1693 | __ Drop(argc + 1); |
| 1694 | __ Ret(); |
| 1695 | |
| 1696 | __ bind(&call_builtin); |
| 1697 | __ TailCallExternalReference(ExternalReference(Builtins::c_ArrayPop, |
| 1698 | masm()->isolate()), |
| 1699 | argc + 1, |
| 1700 | 1); |
| 1701 | |
| 1702 | // Handle call cache miss. |
| 1703 | __ bind(&miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1704 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1705 | |
| 1706 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1707 | return GetCode(function); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1708 | } |
| 1709 | |
| 1710 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1711 | Handle<Code> CallStubCompiler::CompileStringCharCodeAtCall( |
| 1712 | Handle<Object> object, |
| 1713 | Handle<JSObject> holder, |
| 1714 | Handle<JSGlobalPropertyCell> cell, |
| 1715 | Handle<JSFunction> function, |
| 1716 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1717 | // ----------- S t a t e ------------- |
| 1718 | // -- a2 : function name |
| 1719 | // -- ra : return address |
| 1720 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 1721 | // -- ... |
| 1722 | // -- sp[argc * 4] : receiver |
| 1723 | // ----------------------------------- |
| 1724 | |
| 1725 | // If object is not a string, bail out to regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1726 | if (!object->IsString() || !cell.is_null()) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1727 | |
| 1728 | const int argc = arguments().immediate(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1729 | Label miss; |
| 1730 | Label name_miss; |
| 1731 | Label index_out_of_range; |
| 1732 | |
| 1733 | Label* index_out_of_range_label = &index_out_of_range; |
| 1734 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1735 | if (kind_ == Code::CALL_IC && |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1736 | (CallICBase::StringStubState::decode(extra_state_) == |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1737 | DEFAULT_STRING_STUB)) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1738 | index_out_of_range_label = &miss; |
| 1739 | } |
| 1740 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1741 | GenerateNameCheck(name, &name_miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1742 | |
| 1743 | // Check that the maps starting from the prototype haven't changed. |
| 1744 | GenerateDirectLoadGlobalFunctionPrototype(masm(), |
| 1745 | Context::STRING_FUNCTION_INDEX, |
| 1746 | v0, |
| 1747 | &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1748 | ASSERT(!object.is_identical_to(holder)); |
| 1749 | CheckPrototypes(Handle<JSObject>(JSObject::cast(object->GetPrototype())), |
| 1750 | v0, holder, a1, a3, t0, name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1751 | |
| 1752 | Register receiver = a1; |
| 1753 | Register index = t1; |
| 1754 | Register scratch = a3; |
| 1755 | Register result = v0; |
| 1756 | __ lw(receiver, MemOperand(sp, argc * kPointerSize)); |
| 1757 | if (argc > 0) { |
| 1758 | __ lw(index, MemOperand(sp, (argc - 1) * kPointerSize)); |
| 1759 | } else { |
| 1760 | __ LoadRoot(index, Heap::kUndefinedValueRootIndex); |
| 1761 | } |
| 1762 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1763 | StringCharCodeAtGenerator generator(receiver, |
| 1764 | index, |
| 1765 | scratch, |
| 1766 | result, |
| 1767 | &miss, // When not a string. |
| 1768 | &miss, // When not a number. |
| 1769 | index_out_of_range_label, |
| 1770 | STRING_INDEX_IS_NUMBER); |
| 1771 | generator.GenerateFast(masm()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1772 | __ Drop(argc + 1); |
| 1773 | __ Ret(); |
| 1774 | |
| 1775 | StubRuntimeCallHelper call_helper; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1776 | generator.GenerateSlow(masm(), call_helper); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1777 | |
| 1778 | if (index_out_of_range.is_linked()) { |
| 1779 | __ bind(&index_out_of_range); |
| 1780 | __ LoadRoot(v0, Heap::kNanValueRootIndex); |
| 1781 | __ Drop(argc + 1); |
| 1782 | __ Ret(); |
| 1783 | } |
| 1784 | |
| 1785 | __ bind(&miss); |
| 1786 | // Restore function name in a2. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1787 | __ li(a2, name); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1788 | __ bind(&name_miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1789 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1790 | |
| 1791 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1792 | return GetCode(function); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1793 | } |
| 1794 | |
| 1795 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1796 | Handle<Code> CallStubCompiler::CompileStringCharAtCall( |
| 1797 | Handle<Object> object, |
| 1798 | Handle<JSObject> holder, |
| 1799 | Handle<JSGlobalPropertyCell> cell, |
| 1800 | Handle<JSFunction> function, |
| 1801 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1802 | // ----------- S t a t e ------------- |
| 1803 | // -- a2 : function name |
| 1804 | // -- ra : return address |
| 1805 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 1806 | // -- ... |
| 1807 | // -- sp[argc * 4] : receiver |
| 1808 | // ----------------------------------- |
| 1809 | |
| 1810 | // If object is not a string, bail out to regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1811 | if (!object->IsString() || !cell.is_null()) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1812 | |
| 1813 | const int argc = arguments().immediate(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1814 | Label miss; |
| 1815 | Label name_miss; |
| 1816 | Label index_out_of_range; |
| 1817 | Label* index_out_of_range_label = &index_out_of_range; |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1818 | if (kind_ == Code::CALL_IC && |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1819 | (CallICBase::StringStubState::decode(extra_state_) == |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1820 | DEFAULT_STRING_STUB)) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1821 | index_out_of_range_label = &miss; |
| 1822 | } |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1823 | GenerateNameCheck(name, &name_miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1824 | |
| 1825 | // Check that the maps starting from the prototype haven't changed. |
| 1826 | GenerateDirectLoadGlobalFunctionPrototype(masm(), |
| 1827 | Context::STRING_FUNCTION_INDEX, |
| 1828 | v0, |
| 1829 | &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1830 | ASSERT(!object.is_identical_to(holder)); |
| 1831 | CheckPrototypes(Handle<JSObject>(JSObject::cast(object->GetPrototype())), |
| 1832 | v0, holder, a1, a3, t0, name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1833 | |
| 1834 | Register receiver = v0; |
| 1835 | Register index = t1; |
| 1836 | Register scratch1 = a1; |
| 1837 | Register scratch2 = a3; |
| 1838 | Register result = v0; |
| 1839 | __ lw(receiver, MemOperand(sp, argc * kPointerSize)); |
| 1840 | if (argc > 0) { |
| 1841 | __ lw(index, MemOperand(sp, (argc - 1) * kPointerSize)); |
| 1842 | } else { |
| 1843 | __ LoadRoot(index, Heap::kUndefinedValueRootIndex); |
| 1844 | } |
| 1845 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1846 | StringCharAtGenerator generator(receiver, |
| 1847 | index, |
| 1848 | scratch1, |
| 1849 | scratch2, |
| 1850 | result, |
| 1851 | &miss, // When not a string. |
| 1852 | &miss, // When not a number. |
| 1853 | index_out_of_range_label, |
| 1854 | STRING_INDEX_IS_NUMBER); |
| 1855 | generator.GenerateFast(masm()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1856 | __ Drop(argc + 1); |
| 1857 | __ Ret(); |
| 1858 | |
| 1859 | StubRuntimeCallHelper call_helper; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1860 | generator.GenerateSlow(masm(), call_helper); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1861 | |
| 1862 | if (index_out_of_range.is_linked()) { |
| 1863 | __ bind(&index_out_of_range); |
| 1864 | __ LoadRoot(v0, Heap::kEmptyStringRootIndex); |
| 1865 | __ Drop(argc + 1); |
| 1866 | __ Ret(); |
| 1867 | } |
| 1868 | |
| 1869 | __ bind(&miss); |
| 1870 | // Restore function name in a2. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1871 | __ li(a2, name); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1872 | __ bind(&name_miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1873 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1874 | |
| 1875 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1876 | return GetCode(function); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1877 | } |
| 1878 | |
| 1879 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1880 | Handle<Code> CallStubCompiler::CompileStringFromCharCodeCall( |
| 1881 | Handle<Object> object, |
| 1882 | Handle<JSObject> holder, |
| 1883 | Handle<JSGlobalPropertyCell> cell, |
| 1884 | Handle<JSFunction> function, |
| 1885 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1886 | // ----------- S t a t e ------------- |
| 1887 | // -- a2 : function name |
| 1888 | // -- ra : return address |
| 1889 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 1890 | // -- ... |
| 1891 | // -- sp[argc * 4] : receiver |
| 1892 | // ----------------------------------- |
| 1893 | |
| 1894 | const int argc = arguments().immediate(); |
| 1895 | |
| 1896 | // If the object is not a JSObject or we got an unexpected number of |
| 1897 | // arguments, bail out to the regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1898 | if (!object->IsJSObject() || argc != 1) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1899 | |
| 1900 | Label miss; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1901 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1902 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1903 | if (cell.is_null()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1904 | __ lw(a1, MemOperand(sp, 1 * kPointerSize)); |
| 1905 | |
| 1906 | STATIC_ASSERT(kSmiTag == 0); |
| 1907 | __ JumpIfSmi(a1, &miss); |
| 1908 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1909 | CheckPrototypes(Handle<JSObject>::cast(object), a1, holder, v0, a3, t0, |
| 1910 | name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1911 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1912 | ASSERT(cell->value() == *function); |
| 1913 | GenerateGlobalReceiverCheck(Handle<JSObject>::cast(object), holder, name, |
| 1914 | &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1915 | GenerateLoadFunctionFromCell(cell, function, &miss); |
| 1916 | } |
| 1917 | |
| 1918 | // Load the char code argument. |
| 1919 | Register code = a1; |
| 1920 | __ lw(code, MemOperand(sp, 0 * kPointerSize)); |
| 1921 | |
| 1922 | // Check the code is a smi. |
| 1923 | Label slow; |
| 1924 | STATIC_ASSERT(kSmiTag == 0); |
| 1925 | __ JumpIfNotSmi(code, &slow); |
| 1926 | |
| 1927 | // Convert the smi code to uint16. |
| 1928 | __ And(code, code, Operand(Smi::FromInt(0xffff))); |
| 1929 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1930 | StringCharFromCodeGenerator generator(code, v0); |
| 1931 | generator.GenerateFast(masm()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1932 | __ Drop(argc + 1); |
| 1933 | __ Ret(); |
| 1934 | |
| 1935 | StubRuntimeCallHelper call_helper; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1936 | generator.GenerateSlow(masm(), call_helper); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1937 | |
| 1938 | // Tail call the full function. We do not have to patch the receiver |
| 1939 | // because the function makes no use of it. |
| 1940 | __ bind(&slow); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1941 | __ InvokeFunction(function, arguments(), JUMP_FUNCTION, CALL_AS_METHOD); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1942 | |
| 1943 | __ bind(&miss); |
| 1944 | // a2: function name. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1945 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1946 | |
| 1947 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1948 | return cell.is_null() ? GetCode(function) : GetCode(NORMAL, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1949 | } |
| 1950 | |
| 1951 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1952 | Handle<Code> CallStubCompiler::CompileMathFloorCall( |
| 1953 | Handle<Object> object, |
| 1954 | Handle<JSObject> holder, |
| 1955 | Handle<JSGlobalPropertyCell> cell, |
| 1956 | Handle<JSFunction> function, |
| 1957 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1958 | // ----------- S t a t e ------------- |
| 1959 | // -- a2 : function name |
| 1960 | // -- ra : return address |
| 1961 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 1962 | // -- ... |
| 1963 | // -- sp[argc * 4] : receiver |
| 1964 | // ----------------------------------- |
| 1965 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1966 | if (!CpuFeatures::IsSupported(FPU)) { |
| 1967 | return Handle<Code>::null(); |
| 1968 | } |
| 1969 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1970 | CpuFeatures::Scope scope_fpu(FPU); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1971 | const int argc = arguments().immediate(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1972 | // If the object is not a JSObject or we got an unexpected number of |
| 1973 | // arguments, bail out to the regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1974 | if (!object->IsJSObject() || argc != 1) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1975 | |
| 1976 | Label miss, slow; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1977 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1978 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1979 | if (cell.is_null()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1980 | __ lw(a1, MemOperand(sp, 1 * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1981 | STATIC_ASSERT(kSmiTag == 0); |
| 1982 | __ JumpIfSmi(a1, &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1983 | CheckPrototypes(Handle<JSObject>::cast(object), a1, holder, a0, a3, t0, |
| 1984 | name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1985 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 1986 | ASSERT(cell->value() == *function); |
| 1987 | GenerateGlobalReceiverCheck(Handle<JSObject>::cast(object), holder, name, |
| 1988 | &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1989 | GenerateLoadFunctionFromCell(cell, function, &miss); |
| 1990 | } |
| 1991 | |
| 1992 | // Load the (only) argument into v0. |
| 1993 | __ lw(v0, MemOperand(sp, 0 * kPointerSize)); |
| 1994 | |
| 1995 | // If the argument is a smi, just return. |
| 1996 | STATIC_ASSERT(kSmiTag == 0); |
| 1997 | __ And(t0, v0, Operand(kSmiTagMask)); |
| 1998 | __ Drop(argc + 1, eq, t0, Operand(zero_reg)); |
| 1999 | __ Ret(eq, t0, Operand(zero_reg)); |
| 2000 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2001 | __ CheckMap(v0, a1, Heap::kHeapNumberMapRootIndex, &slow, DONT_DO_SMI_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2002 | |
| 2003 | Label wont_fit_smi, no_fpu_error, restore_fcsr_and_return; |
| 2004 | |
| 2005 | // If fpu is enabled, we use the floor instruction. |
| 2006 | |
| 2007 | // Load the HeapNumber value. |
| 2008 | __ ldc1(f0, FieldMemOperand(v0, HeapNumber::kValueOffset)); |
| 2009 | |
| 2010 | // Backup FCSR. |
| 2011 | __ cfc1(a3, FCSR); |
| 2012 | // Clearing FCSR clears the exception mask with no side-effects. |
| 2013 | __ ctc1(zero_reg, FCSR); |
| 2014 | // Convert the argument to an integer. |
| 2015 | __ floor_w_d(f0, f0); |
| 2016 | |
| 2017 | // Start checking for special cases. |
| 2018 | // Get the argument exponent and clear the sign bit. |
| 2019 | __ lw(t1, FieldMemOperand(v0, HeapNumber::kValueOffset + kPointerSize)); |
| 2020 | __ And(t2, t1, Operand(~HeapNumber::kSignMask)); |
| 2021 | __ srl(t2, t2, HeapNumber::kMantissaBitsInTopWord); |
| 2022 | |
| 2023 | // Retrieve FCSR and check for fpu errors. |
| 2024 | __ cfc1(t5, FCSR); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 2025 | __ And(t5, t5, Operand(kFCSRExceptionFlagMask)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2026 | __ Branch(&no_fpu_error, eq, t5, Operand(zero_reg)); |
| 2027 | |
| 2028 | // Check for NaN, Infinity, and -Infinity. |
| 2029 | // They are invariant through a Math.Floor call, so just |
| 2030 | // return the original argument. |
| 2031 | __ Subu(t3, t2, Operand(HeapNumber::kExponentMask |
| 2032 | >> HeapNumber::kMantissaBitsInTopWord)); |
| 2033 | __ Branch(&restore_fcsr_and_return, eq, t3, Operand(zero_reg)); |
| 2034 | // We had an overflow or underflow in the conversion. Check if we |
| 2035 | // have a big exponent. |
| 2036 | // If greater or equal, the argument is already round and in v0. |
| 2037 | __ Branch(&restore_fcsr_and_return, ge, t3, |
| 2038 | Operand(HeapNumber::kMantissaBits)); |
| 2039 | __ Branch(&wont_fit_smi); |
| 2040 | |
| 2041 | __ bind(&no_fpu_error); |
| 2042 | // Move the result back to v0. |
| 2043 | __ mfc1(v0, f0); |
| 2044 | // Check if the result fits into a smi. |
| 2045 | __ Addu(a1, v0, Operand(0x40000000)); |
| 2046 | __ Branch(&wont_fit_smi, lt, a1, Operand(zero_reg)); |
| 2047 | // Tag the result. |
| 2048 | STATIC_ASSERT(kSmiTag == 0); |
| 2049 | __ sll(v0, v0, kSmiTagSize); |
| 2050 | |
| 2051 | // Check for -0. |
| 2052 | __ Branch(&restore_fcsr_and_return, ne, v0, Operand(zero_reg)); |
| 2053 | // t1 already holds the HeapNumber exponent. |
| 2054 | __ And(t0, t1, Operand(HeapNumber::kSignMask)); |
| 2055 | // If our HeapNumber is negative it was -0, so load its address and return. |
| 2056 | // Else v0 is loaded with 0, so we can also just return. |
| 2057 | __ Branch(&restore_fcsr_and_return, eq, t0, Operand(zero_reg)); |
| 2058 | __ lw(v0, MemOperand(sp, 0 * kPointerSize)); |
| 2059 | |
| 2060 | __ bind(&restore_fcsr_and_return); |
| 2061 | // Restore FCSR and return. |
| 2062 | __ ctc1(a3, FCSR); |
| 2063 | |
| 2064 | __ Drop(argc + 1); |
| 2065 | __ Ret(); |
| 2066 | |
| 2067 | __ bind(&wont_fit_smi); |
| 2068 | // Restore FCSR and fall to slow case. |
| 2069 | __ ctc1(a3, FCSR); |
| 2070 | |
| 2071 | __ bind(&slow); |
| 2072 | // Tail call the full function. We do not have to patch the receiver |
| 2073 | // because the function makes no use of it. |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 2074 | __ InvokeFunction(function, arguments(), JUMP_FUNCTION, CALL_AS_METHOD); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2075 | |
| 2076 | __ bind(&miss); |
| 2077 | // a2: function name. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2078 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2079 | |
| 2080 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2081 | return cell.is_null() ? GetCode(function) : GetCode(NORMAL, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2082 | } |
| 2083 | |
| 2084 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2085 | Handle<Code> CallStubCompiler::CompileMathAbsCall( |
| 2086 | Handle<Object> object, |
| 2087 | Handle<JSObject> holder, |
| 2088 | Handle<JSGlobalPropertyCell> cell, |
| 2089 | Handle<JSFunction> function, |
| 2090 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2091 | // ----------- S t a t e ------------- |
| 2092 | // -- a2 : function name |
| 2093 | // -- ra : return address |
| 2094 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 2095 | // -- ... |
| 2096 | // -- sp[argc * 4] : receiver |
| 2097 | // ----------------------------------- |
| 2098 | |
| 2099 | const int argc = arguments().immediate(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2100 | // If the object is not a JSObject or we got an unexpected number of |
| 2101 | // arguments, bail out to the regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2102 | if (!object->IsJSObject() || argc != 1) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2103 | |
| 2104 | Label miss; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2105 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2106 | GenerateNameCheck(name, &miss); |
| 2107 | if (cell.is_null()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2108 | __ lw(a1, MemOperand(sp, 1 * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2109 | STATIC_ASSERT(kSmiTag == 0); |
| 2110 | __ JumpIfSmi(a1, &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2111 | CheckPrototypes(Handle<JSObject>::cast(object), a1, holder, v0, a3, t0, |
| 2112 | name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2113 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2114 | ASSERT(cell->value() == *function); |
| 2115 | GenerateGlobalReceiverCheck(Handle<JSObject>::cast(object), holder, name, |
| 2116 | &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2117 | GenerateLoadFunctionFromCell(cell, function, &miss); |
| 2118 | } |
| 2119 | |
| 2120 | // Load the (only) argument into v0. |
| 2121 | __ lw(v0, MemOperand(sp, 0 * kPointerSize)); |
| 2122 | |
| 2123 | // Check if the argument is a smi. |
| 2124 | Label not_smi; |
| 2125 | STATIC_ASSERT(kSmiTag == 0); |
| 2126 | __ JumpIfNotSmi(v0, ¬_smi); |
| 2127 | |
| 2128 | // Do bitwise not or do nothing depending on the sign of the |
| 2129 | // argument. |
| 2130 | __ sra(t0, v0, kBitsPerInt - 1); |
| 2131 | __ Xor(a1, v0, t0); |
| 2132 | |
| 2133 | // Add 1 or do nothing depending on the sign of the argument. |
| 2134 | __ Subu(v0, a1, t0); |
| 2135 | |
| 2136 | // If the result is still negative, go to the slow case. |
| 2137 | // This only happens for the most negative smi. |
| 2138 | Label slow; |
| 2139 | __ Branch(&slow, lt, v0, Operand(zero_reg)); |
| 2140 | |
| 2141 | // Smi case done. |
| 2142 | __ Drop(argc + 1); |
| 2143 | __ Ret(); |
| 2144 | |
| 2145 | // Check if the argument is a heap number and load its exponent and |
| 2146 | // sign. |
| 2147 | __ bind(¬_smi); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2148 | __ CheckMap(v0, a1, Heap::kHeapNumberMapRootIndex, &slow, DONT_DO_SMI_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2149 | __ lw(a1, FieldMemOperand(v0, HeapNumber::kExponentOffset)); |
| 2150 | |
| 2151 | // Check the sign of the argument. If the argument is positive, |
| 2152 | // just return it. |
| 2153 | Label negative_sign; |
| 2154 | __ And(t0, a1, Operand(HeapNumber::kSignMask)); |
| 2155 | __ Branch(&negative_sign, ne, t0, Operand(zero_reg)); |
| 2156 | __ Drop(argc + 1); |
| 2157 | __ Ret(); |
| 2158 | |
| 2159 | // If the argument is negative, clear the sign, and return a new |
| 2160 | // number. |
| 2161 | __ bind(&negative_sign); |
| 2162 | __ Xor(a1, a1, Operand(HeapNumber::kSignMask)); |
| 2163 | __ lw(a3, FieldMemOperand(v0, HeapNumber::kMantissaOffset)); |
| 2164 | __ LoadRoot(t2, Heap::kHeapNumberMapRootIndex); |
| 2165 | __ AllocateHeapNumber(v0, t0, t1, t2, &slow); |
| 2166 | __ sw(a1, FieldMemOperand(v0, HeapNumber::kExponentOffset)); |
| 2167 | __ sw(a3, FieldMemOperand(v0, HeapNumber::kMantissaOffset)); |
| 2168 | __ Drop(argc + 1); |
| 2169 | __ Ret(); |
| 2170 | |
| 2171 | // Tail call the full function. We do not have to patch the receiver |
| 2172 | // because the function makes no use of it. |
| 2173 | __ bind(&slow); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 2174 | __ InvokeFunction(function, arguments(), JUMP_FUNCTION, CALL_AS_METHOD); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2175 | |
| 2176 | __ bind(&miss); |
| 2177 | // a2: function name. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2178 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2179 | |
| 2180 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2181 | return cell.is_null() ? GetCode(function) : GetCode(NORMAL, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2182 | } |
| 2183 | |
| 2184 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2185 | Handle<Code> CallStubCompiler::CompileFastApiCall( |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2186 | const CallOptimization& optimization, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2187 | Handle<Object> object, |
| 2188 | Handle<JSObject> holder, |
| 2189 | Handle<JSGlobalPropertyCell> cell, |
| 2190 | Handle<JSFunction> function, |
| 2191 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2192 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2193 | Counters* counters = isolate()->counters(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2194 | |
| 2195 | ASSERT(optimization.is_simple_api_call()); |
| 2196 | // Bail out if object is a global object as we don't want to |
| 2197 | // repatch it to global receiver. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2198 | if (object->IsGlobalObject()) return Handle<Code>::null(); |
| 2199 | if (!cell.is_null()) return Handle<Code>::null(); |
| 2200 | if (!object->IsJSObject()) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2201 | int depth = optimization.GetPrototypeDepthOfExpectedType( |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2202 | Handle<JSObject>::cast(object), holder); |
| 2203 | if (depth == kInvalidProtoDepth) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2204 | |
| 2205 | Label miss, miss_before_stack_reserved; |
| 2206 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2207 | GenerateNameCheck(name, &miss_before_stack_reserved); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2208 | |
| 2209 | // Get the receiver from the stack. |
| 2210 | const int argc = arguments().immediate(); |
| 2211 | __ lw(a1, MemOperand(sp, argc * kPointerSize)); |
| 2212 | |
| 2213 | // Check that the receiver isn't a smi. |
| 2214 | __ JumpIfSmi(a1, &miss_before_stack_reserved); |
| 2215 | |
| 2216 | __ IncrementCounter(counters->call_const(), 1, a0, a3); |
| 2217 | __ IncrementCounter(counters->call_const_fast_api(), 1, a0, a3); |
| 2218 | |
| 2219 | ReserveSpaceForFastApiCall(masm(), a0); |
| 2220 | |
| 2221 | // Check that the maps haven't changed and find a Holder as a side effect. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2222 | CheckPrototypes(Handle<JSObject>::cast(object), a1, holder, a0, a3, t0, name, |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2223 | depth, &miss); |
| 2224 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2225 | GenerateFastApiDirectCall(masm(), optimization, argc); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2226 | |
| 2227 | __ bind(&miss); |
| 2228 | FreeSpaceForFastApiCall(masm()); |
| 2229 | |
| 2230 | __ bind(&miss_before_stack_reserved); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2231 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2232 | |
| 2233 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2234 | return GetCode(function); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2235 | } |
| 2236 | |
| 2237 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2238 | Handle<Code> CallStubCompiler::CompileCallConstant(Handle<Object> object, |
| 2239 | Handle<JSObject> holder, |
| 2240 | Handle<JSFunction> function, |
| 2241 | Handle<String> name, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2242 | CheckType check) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2243 | // ----------- S t a t e ------------- |
| 2244 | // -- a2 : name |
| 2245 | // -- ra : return address |
| 2246 | // ----------------------------------- |
| 2247 | if (HasCustomCallGenerator(function)) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2248 | Handle<Code> code = CompileCustomCall(object, holder, |
| 2249 | Handle<JSGlobalPropertyCell>::null(), |
| 2250 | function, name); |
| 2251 | // A null handle means bail out to the regular compiler code below. |
| 2252 | if (!code.is_null()) return code; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2253 | } |
| 2254 | |
| 2255 | Label miss; |
| 2256 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2257 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2258 | |
| 2259 | // Get the receiver from the stack. |
| 2260 | const int argc = arguments().immediate(); |
| 2261 | __ lw(a1, MemOperand(sp, argc * kPointerSize)); |
| 2262 | |
| 2263 | // Check that the receiver isn't a smi. |
| 2264 | if (check != NUMBER_CHECK) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2265 | __ JumpIfSmi(a1, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2266 | } |
| 2267 | |
| 2268 | // Make sure that it's okay not to patch the on stack receiver |
| 2269 | // unless we're doing a receiver map check. |
| 2270 | ASSERT(!object->IsGlobalObject() || check == RECEIVER_MAP_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2271 | switch (check) { |
| 2272 | case RECEIVER_MAP_CHECK: |
| 2273 | __ IncrementCounter(masm()->isolate()->counters()->call_const(), |
| 2274 | 1, a0, a3); |
| 2275 | |
| 2276 | // Check that the maps haven't changed. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2277 | CheckPrototypes(Handle<JSObject>::cast(object), a1, holder, a0, a3, t0, |
| 2278 | name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2279 | |
| 2280 | // Patch the receiver on the stack with the global proxy if |
| 2281 | // necessary. |
| 2282 | if (object->IsGlobalObject()) { |
| 2283 | __ lw(a3, FieldMemOperand(a1, GlobalObject::kGlobalReceiverOffset)); |
| 2284 | __ sw(a3, MemOperand(sp, argc * kPointerSize)); |
| 2285 | } |
| 2286 | break; |
| 2287 | |
| 2288 | case STRING_CHECK: |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2289 | if (function->IsBuiltin() || function->shared()->strict_mode()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2290 | // Check that the object is a two-byte string or a symbol. |
| 2291 | __ GetObjectType(a1, a3, a3); |
| 2292 | __ Branch(&miss, Ugreater_equal, a3, Operand(FIRST_NONSTRING_TYPE)); |
| 2293 | // Check that the maps starting from the prototype haven't changed. |
| 2294 | GenerateDirectLoadGlobalFunctionPrototype( |
| 2295 | masm(), Context::STRING_FUNCTION_INDEX, a0, &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2296 | CheckPrototypes( |
| 2297 | Handle<JSObject>(JSObject::cast(object->GetPrototype())), |
| 2298 | a0, holder, a3, a1, t0, name, &miss); |
| 2299 | } else { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2300 | // Calling non-strict non-builtins with a value as the receiver |
| 2301 | // requires boxing. |
| 2302 | __ jmp(&miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2303 | } |
| 2304 | break; |
| 2305 | |
| 2306 | case NUMBER_CHECK: |
| 2307 | if (function->IsBuiltin() || function->shared()->strict_mode()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2308 | Label fast; |
| 2309 | // Check that the object is a smi or a heap number. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2310 | __ JumpIfSmi(a1, &fast); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2311 | __ GetObjectType(a1, a0, a0); |
| 2312 | __ Branch(&miss, ne, a0, Operand(HEAP_NUMBER_TYPE)); |
| 2313 | __ bind(&fast); |
| 2314 | // Check that the maps starting from the prototype haven't changed. |
| 2315 | GenerateDirectLoadGlobalFunctionPrototype( |
| 2316 | masm(), Context::NUMBER_FUNCTION_INDEX, a0, &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2317 | CheckPrototypes( |
| 2318 | Handle<JSObject>(JSObject::cast(object->GetPrototype())), |
| 2319 | a0, holder, a3, a1, t0, name, &miss); |
| 2320 | } else { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2321 | // Calling non-strict non-builtins with a value as the receiver |
| 2322 | // requires boxing. |
| 2323 | __ jmp(&miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2324 | } |
| 2325 | break; |
| 2326 | |
| 2327 | case BOOLEAN_CHECK: |
| 2328 | if (function->IsBuiltin() || function->shared()->strict_mode()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2329 | Label fast; |
| 2330 | // Check that the object is a boolean. |
| 2331 | __ LoadRoot(t0, Heap::kTrueValueRootIndex); |
| 2332 | __ Branch(&fast, eq, a1, Operand(t0)); |
| 2333 | __ LoadRoot(t0, Heap::kFalseValueRootIndex); |
| 2334 | __ Branch(&miss, ne, a1, Operand(t0)); |
| 2335 | __ bind(&fast); |
| 2336 | // Check that the maps starting from the prototype haven't changed. |
| 2337 | GenerateDirectLoadGlobalFunctionPrototype( |
| 2338 | masm(), Context::BOOLEAN_FUNCTION_INDEX, a0, &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2339 | CheckPrototypes( |
| 2340 | Handle<JSObject>(JSObject::cast(object->GetPrototype())), |
| 2341 | a0, holder, a3, a1, t0, name, &miss); |
| 2342 | } else { |
| 2343 | // Calling non-strict non-builtins with a value as the receiver |
| 2344 | // requires boxing. |
| 2345 | __ jmp(&miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2346 | } |
| 2347 | break; |
| 2348 | } |
| 2349 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2350 | CallKind call_kind = CallICBase::Contextual::decode(extra_state_) |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 2351 | ? CALL_AS_FUNCTION |
| 2352 | : CALL_AS_METHOD; |
| 2353 | __ InvokeFunction(function, arguments(), JUMP_FUNCTION, call_kind); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2354 | |
| 2355 | // Handle call cache miss. |
| 2356 | __ bind(&miss); |
| 2357 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2358 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2359 | |
| 2360 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2361 | return GetCode(function); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2362 | } |
| 2363 | |
| 2364 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2365 | Handle<Code> CallStubCompiler::CompileCallInterceptor(Handle<JSObject> object, |
| 2366 | Handle<JSObject> holder, |
| 2367 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2368 | // ----------- S t a t e ------------- |
| 2369 | // -- a2 : name |
| 2370 | // -- ra : return address |
| 2371 | // ----------------------------------- |
| 2372 | |
| 2373 | Label miss; |
| 2374 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2375 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2376 | |
| 2377 | // Get the number of arguments. |
| 2378 | const int argc = arguments().immediate(); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2379 | LookupResult lookup(isolate()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2380 | LookupPostInterceptor(holder, name, &lookup); |
| 2381 | |
| 2382 | // Get the receiver from the stack. |
| 2383 | __ lw(a1, MemOperand(sp, argc * kPointerSize)); |
| 2384 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2385 | CallInterceptorCompiler compiler(this, arguments(), a2, extra_state_); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2386 | compiler.Compile(masm(), object, holder, name, &lookup, a1, a3, t0, a0, |
| 2387 | &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2388 | |
| 2389 | // Move returned value, the function to call, to a1. |
| 2390 | __ mov(a1, v0); |
| 2391 | // Restore receiver. |
| 2392 | __ lw(a0, MemOperand(sp, argc * kPointerSize)); |
| 2393 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2394 | GenerateCallFunction(masm(), object, arguments(), &miss, extra_state_); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2395 | |
| 2396 | // Handle call cache miss. |
| 2397 | __ bind(&miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2398 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2399 | |
| 2400 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2401 | return GetCode(INTERCEPTOR, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2402 | } |
| 2403 | |
| 2404 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2405 | Handle<Code> CallStubCompiler::CompileCallGlobal( |
| 2406 | Handle<JSObject> object, |
| 2407 | Handle<GlobalObject> holder, |
| 2408 | Handle<JSGlobalPropertyCell> cell, |
| 2409 | Handle<JSFunction> function, |
| 2410 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2411 | // ----------- S t a t e ------------- |
| 2412 | // -- a2 : name |
| 2413 | // -- ra : return address |
| 2414 | // ----------------------------------- |
| 2415 | |
| 2416 | if (HasCustomCallGenerator(function)) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2417 | Handle<Code> code = CompileCustomCall(object, holder, cell, function, name); |
| 2418 | // A null handle means bail out to the regular compiler code below. |
| 2419 | if (!code.is_null()) return code; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2420 | } |
| 2421 | |
| 2422 | Label miss; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2423 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2424 | |
| 2425 | // Get the number of arguments. |
| 2426 | const int argc = arguments().immediate(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2427 | GenerateGlobalReceiverCheck(object, holder, name, &miss); |
| 2428 | GenerateLoadFunctionFromCell(cell, function, &miss); |
| 2429 | |
| 2430 | // Patch the receiver on the stack with the global proxy if |
| 2431 | // necessary. |
| 2432 | if (object->IsGlobalObject()) { |
| 2433 | __ lw(a3, FieldMemOperand(a0, GlobalObject::kGlobalReceiverOffset)); |
| 2434 | __ sw(a3, MemOperand(sp, argc * kPointerSize)); |
| 2435 | } |
| 2436 | |
| 2437 | // Setup the context (function already in r1). |
| 2438 | __ lw(cp, FieldMemOperand(a1, JSFunction::kContextOffset)); |
| 2439 | |
| 2440 | // Jump to the cached code (tail call). |
| 2441 | Counters* counters = masm()->isolate()->counters(); |
| 2442 | __ IncrementCounter(counters->call_global_inline(), 1, a3, t0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2443 | ParameterCount expected(function->shared()->formal_parameter_count()); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2444 | CallKind call_kind = CallICBase::Contextual::decode(extra_state_) |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2445 | ? CALL_AS_FUNCTION |
| 2446 | : CALL_AS_METHOD; |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2447 | // We call indirectly through the code field in the function to |
| 2448 | // allow recompilation to take effect without changing any of the |
| 2449 | // call sites. |
| 2450 | __ lw(a3, FieldMemOperand(a1, JSFunction::kCodeEntryOffset)); |
| 2451 | __ InvokeCode(a3, expected, arguments(), JUMP_FUNCTION, |
| 2452 | NullCallWrapper(), call_kind); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2453 | |
| 2454 | // Handle call cache miss. |
| 2455 | __ bind(&miss); |
| 2456 | __ IncrementCounter(counters->call_global_inline_miss(), 1, a1, a3); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2457 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2458 | |
| 2459 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2460 | return GetCode(NORMAL, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2461 | } |
| 2462 | |
| 2463 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2464 | Handle<Code> StoreStubCompiler::CompileStoreField(Handle<JSObject> object, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2465 | int index, |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2466 | Handle<Map> transition, |
| 2467 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2468 | // ----------- S t a t e ------------- |
| 2469 | // -- a0 : value |
| 2470 | // -- a1 : receiver |
| 2471 | // -- a2 : name |
| 2472 | // -- ra : return address |
| 2473 | // ----------------------------------- |
| 2474 | Label miss; |
| 2475 | |
| 2476 | // Name register might be clobbered. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2477 | GenerateStoreField(masm(), object, index, transition, a1, a2, a3, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2478 | __ bind(&miss); |
| 2479 | __ li(a2, Operand(Handle<String>(name))); // Restore name. |
| 2480 | Handle<Code> ic = masm()->isolate()->builtins()->Builtins::StoreIC_Miss(); |
| 2481 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 2482 | |
| 2483 | // Return the generated code. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2484 | return GetCode(transition.is_null() ? FIELD : MAP_TRANSITION, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2485 | } |
| 2486 | |
| 2487 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2488 | Handle<Code> StoreStubCompiler::CompileStoreCallback( |
| 2489 | Handle<JSObject> object, |
| 2490 | Handle<AccessorInfo> callback, |
| 2491 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2492 | // ----------- S t a t e ------------- |
| 2493 | // -- a0 : value |
| 2494 | // -- a1 : receiver |
| 2495 | // -- a2 : name |
| 2496 | // -- ra : return address |
| 2497 | // ----------------------------------- |
| 2498 | Label miss; |
| 2499 | |
| 2500 | // Check that the object isn't a smi. |
| 2501 | __ JumpIfSmi(a1, &miss); |
| 2502 | |
| 2503 | // Check that the map of the object hasn't changed. |
| 2504 | __ lw(a3, FieldMemOperand(a1, HeapObject::kMapOffset)); |
| 2505 | __ Branch(&miss, ne, a3, Operand(Handle<Map>(object->map()))); |
| 2506 | |
| 2507 | // Perform global security token check if needed. |
| 2508 | if (object->IsJSGlobalProxy()) { |
| 2509 | __ CheckAccessGlobalProxy(a1, a3, &miss); |
| 2510 | } |
| 2511 | |
| 2512 | // Stub never generated for non-global objects that require access |
| 2513 | // checks. |
| 2514 | ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded()); |
| 2515 | |
| 2516 | __ push(a1); // Receiver. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2517 | __ li(a3, Operand(callback)); // Callback info. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2518 | __ Push(a3, a2, a0); |
| 2519 | |
| 2520 | // Do tail-call to the runtime system. |
| 2521 | ExternalReference store_callback_property = |
| 2522 | ExternalReference(IC_Utility(IC::kStoreCallbackProperty), |
| 2523 | masm()->isolate()); |
| 2524 | __ TailCallExternalReference(store_callback_property, 4, 1); |
| 2525 | |
| 2526 | // Handle store cache miss. |
| 2527 | __ bind(&miss); |
| 2528 | Handle<Code> ic = masm()->isolate()->builtins()->StoreIC_Miss(); |
| 2529 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 2530 | |
| 2531 | // Return the generated code. |
| 2532 | return GetCode(CALLBACKS, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2533 | } |
| 2534 | |
| 2535 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2536 | Handle<Code> StoreStubCompiler::CompileStoreInterceptor( |
| 2537 | Handle<JSObject> receiver, |
| 2538 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2539 | // ----------- S t a t e ------------- |
| 2540 | // -- a0 : value |
| 2541 | // -- a1 : receiver |
| 2542 | // -- a2 : name |
| 2543 | // -- ra : return address |
| 2544 | // ----------------------------------- |
| 2545 | Label miss; |
| 2546 | |
| 2547 | // Check that the object isn't a smi. |
| 2548 | __ JumpIfSmi(a1, &miss); |
| 2549 | |
| 2550 | // Check that the map of the object hasn't changed. |
| 2551 | __ lw(a3, FieldMemOperand(a1, HeapObject::kMapOffset)); |
| 2552 | __ Branch(&miss, ne, a3, Operand(Handle<Map>(receiver->map()))); |
| 2553 | |
| 2554 | // Perform global security token check if needed. |
| 2555 | if (receiver->IsJSGlobalProxy()) { |
| 2556 | __ CheckAccessGlobalProxy(a1, a3, &miss); |
| 2557 | } |
| 2558 | |
| 2559 | // Stub is never generated for non-global objects that require access |
| 2560 | // checks. |
| 2561 | ASSERT(receiver->IsJSGlobalProxy() || !receiver->IsAccessCheckNeeded()); |
| 2562 | |
| 2563 | __ Push(a1, a2, a0); // Receiver, name, value. |
| 2564 | |
| 2565 | __ li(a0, Operand(Smi::FromInt(strict_mode_))); |
| 2566 | __ push(a0); // Strict mode. |
| 2567 | |
| 2568 | // Do tail-call to the runtime system. |
| 2569 | ExternalReference store_ic_property = |
| 2570 | ExternalReference(IC_Utility(IC::kStoreInterceptorProperty), |
| 2571 | masm()->isolate()); |
| 2572 | __ TailCallExternalReference(store_ic_property, 4, 1); |
| 2573 | |
| 2574 | // Handle store cache miss. |
| 2575 | __ bind(&miss); |
| 2576 | Handle<Code> ic = masm()->isolate()->builtins()->Builtins::StoreIC_Miss(); |
| 2577 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 2578 | |
| 2579 | // Return the generated code. |
| 2580 | return GetCode(INTERCEPTOR, name); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2581 | } |
| 2582 | |
| 2583 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2584 | Handle<Code> StoreStubCompiler::CompileStoreGlobal( |
| 2585 | Handle<GlobalObject> object, |
| 2586 | Handle<JSGlobalPropertyCell> cell, |
| 2587 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2588 | // ----------- S t a t e ------------- |
| 2589 | // -- a0 : value |
| 2590 | // -- a1 : receiver |
| 2591 | // -- a2 : name |
| 2592 | // -- ra : return address |
| 2593 | // ----------------------------------- |
| 2594 | Label miss; |
| 2595 | |
| 2596 | // Check that the map of the global has not changed. |
| 2597 | __ lw(a3, FieldMemOperand(a1, HeapObject::kMapOffset)); |
| 2598 | __ Branch(&miss, ne, a3, Operand(Handle<Map>(object->map()))); |
| 2599 | |
| 2600 | // Check that the value in the cell is not the hole. If it is, this |
| 2601 | // cell could have been deleted and reintroducing the global needs |
| 2602 | // to update the property details in the property dictionary of the |
| 2603 | // global object. We bail out to the runtime system to do that. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2604 | __ li(t0, Operand(cell)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2605 | __ LoadRoot(t1, Heap::kTheHoleValueRootIndex); |
| 2606 | __ lw(t2, FieldMemOperand(t0, JSGlobalPropertyCell::kValueOffset)); |
| 2607 | __ Branch(&miss, eq, t1, Operand(t2)); |
| 2608 | |
| 2609 | // Store the value in the cell. |
| 2610 | __ sw(a0, FieldMemOperand(t0, JSGlobalPropertyCell::kValueOffset)); |
| 2611 | __ mov(v0, a0); // Stored value must be returned in v0. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 2612 | |
| 2613 | // This trashes a0 but the value is returned in v0 anyway. |
| 2614 | __ RecordWriteField(t0, |
| 2615 | JSGlobalPropertyCell::kValueOffset, |
| 2616 | a0, |
| 2617 | a2, |
| 2618 | kRAHasNotBeenSaved, |
| 2619 | kDontSaveFPRegs, |
| 2620 | OMIT_REMEMBERED_SET); |
| 2621 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2622 | Counters* counters = masm()->isolate()->counters(); |
| 2623 | __ IncrementCounter(counters->named_store_global_inline(), 1, a1, a3); |
| 2624 | __ Ret(); |
| 2625 | |
| 2626 | // Handle store cache miss. |
| 2627 | __ bind(&miss); |
| 2628 | __ IncrementCounter(counters->named_store_global_inline_miss(), 1, a1, a3); |
| 2629 | Handle<Code> ic = masm()->isolate()->builtins()->StoreIC_Miss(); |
| 2630 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 2631 | |
| 2632 | // Return the generated code. |
| 2633 | return GetCode(NORMAL, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2634 | } |
| 2635 | |
| 2636 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2637 | Handle<Code> LoadStubCompiler::CompileLoadNonexistent(Handle<String> name, |
| 2638 | Handle<JSObject> object, |
| 2639 | Handle<JSObject> last) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2640 | // ----------- S t a t e ------------- |
| 2641 | // -- a0 : receiver |
| 2642 | // -- ra : return address |
| 2643 | // ----------------------------------- |
| 2644 | Label miss; |
| 2645 | |
| 2646 | // Check that the receiver is not a smi. |
| 2647 | __ JumpIfSmi(a0, &miss); |
| 2648 | |
| 2649 | // Check the maps of the full prototype chain. |
| 2650 | CheckPrototypes(object, a0, last, a3, a1, t0, name, &miss); |
| 2651 | |
| 2652 | // If the last object in the prototype chain is a global object, |
| 2653 | // check that the global property cell is empty. |
| 2654 | if (last->IsGlobalObject()) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2655 | GenerateCheckPropertyCell( |
| 2656 | masm(), Handle<GlobalObject>::cast(last), name, a1, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2657 | } |
| 2658 | |
| 2659 | // Return undefined if maps of the full prototype chain is still the same. |
| 2660 | __ LoadRoot(v0, Heap::kUndefinedValueRootIndex); |
| 2661 | __ Ret(); |
| 2662 | |
| 2663 | __ bind(&miss); |
| 2664 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 2665 | |
| 2666 | // Return the generated code. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2667 | return GetCode(NONEXISTENT, factory()->empty_string()); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2668 | } |
| 2669 | |
| 2670 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2671 | Handle<Code> LoadStubCompiler::CompileLoadField(Handle<JSObject> object, |
| 2672 | Handle<JSObject> holder, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2673 | int index, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2674 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2675 | // ----------- S t a t e ------------- |
| 2676 | // -- a0 : receiver |
| 2677 | // -- a2 : name |
| 2678 | // -- ra : return address |
| 2679 | // ----------------------------------- |
| 2680 | Label miss; |
| 2681 | |
| 2682 | __ mov(v0, a0); |
| 2683 | |
| 2684 | GenerateLoadField(object, holder, v0, a3, a1, t0, index, name, &miss); |
| 2685 | __ bind(&miss); |
| 2686 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 2687 | |
| 2688 | // Return the generated code. |
| 2689 | return GetCode(FIELD, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2690 | } |
| 2691 | |
| 2692 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2693 | Handle<Code> LoadStubCompiler::CompileLoadCallback( |
| 2694 | Handle<String> name, |
| 2695 | Handle<JSObject> object, |
| 2696 | Handle<JSObject> holder, |
| 2697 | Handle<AccessorInfo> callback) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2698 | // ----------- S t a t e ------------- |
| 2699 | // -- a0 : receiver |
| 2700 | // -- a2 : name |
| 2701 | // -- ra : return address |
| 2702 | // ----------------------------------- |
| 2703 | Label miss; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2704 | GenerateLoadCallback(object, holder, a0, a2, a3, a1, t0, callback, name, |
| 2705 | &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2706 | __ bind(&miss); |
| 2707 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 2708 | |
| 2709 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2710 | return GetCode(CALLBACKS, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2711 | } |
| 2712 | |
| 2713 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2714 | Handle<Code> LoadStubCompiler::CompileLoadConstant(Handle<JSObject> object, |
| 2715 | Handle<JSObject> holder, |
| 2716 | Handle<Object> value, |
| 2717 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2718 | // ----------- S t a t e ------------- |
| 2719 | // -- a0 : receiver |
| 2720 | // -- a2 : name |
| 2721 | // -- ra : return address |
| 2722 | // ----------------------------------- |
| 2723 | Label miss; |
| 2724 | |
| 2725 | GenerateLoadConstant(object, holder, a0, a3, a1, t0, value, name, &miss); |
| 2726 | __ bind(&miss); |
| 2727 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 2728 | |
| 2729 | // Return the generated code. |
| 2730 | return GetCode(CONSTANT_FUNCTION, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2731 | } |
| 2732 | |
| 2733 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2734 | Handle<Code> LoadStubCompiler::CompileLoadInterceptor(Handle<JSObject> object, |
| 2735 | Handle<JSObject> holder, |
| 2736 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2737 | // ----------- S t a t e ------------- |
| 2738 | // -- a0 : receiver |
| 2739 | // -- a2 : name |
| 2740 | // -- ra : return address |
| 2741 | // -- [sp] : receiver |
| 2742 | // ----------------------------------- |
| 2743 | Label miss; |
| 2744 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2745 | LookupResult lookup(isolate()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2746 | LookupPostInterceptor(holder, name, &lookup); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2747 | GenerateLoadInterceptor(object, holder, &lookup, a0, a2, a3, a1, t0, name, |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2748 | &miss); |
| 2749 | __ bind(&miss); |
| 2750 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 2751 | |
| 2752 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2753 | return GetCode(INTERCEPTOR, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2754 | } |
| 2755 | |
| 2756 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2757 | Handle<Code> LoadStubCompiler::CompileLoadGlobal( |
| 2758 | Handle<JSObject> object, |
| 2759 | Handle<GlobalObject> holder, |
| 2760 | Handle<JSGlobalPropertyCell> cell, |
| 2761 | Handle<String> name, |
| 2762 | bool is_dont_delete) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2763 | // ----------- S t a t e ------------- |
| 2764 | // -- a0 : receiver |
| 2765 | // -- a2 : name |
| 2766 | // -- ra : return address |
| 2767 | // ----------------------------------- |
| 2768 | Label miss; |
| 2769 | |
| 2770 | // If the object is the holder then we know that it's a global |
| 2771 | // object which can only happen for contextual calls. In this case, |
| 2772 | // the receiver cannot be a smi. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2773 | if (!object.is_identical_to(holder)) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2774 | __ JumpIfSmi(a0, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2775 | } |
| 2776 | |
| 2777 | // Check that the map of the global has not changed. |
| 2778 | CheckPrototypes(object, a0, holder, a3, t0, a1, name, &miss); |
| 2779 | |
| 2780 | // Get the value from the cell. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2781 | __ li(a3, Operand(cell)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2782 | __ lw(t0, FieldMemOperand(a3, JSGlobalPropertyCell::kValueOffset)); |
| 2783 | |
| 2784 | // Check for deleted property if property can actually be deleted. |
| 2785 | if (!is_dont_delete) { |
| 2786 | __ LoadRoot(at, Heap::kTheHoleValueRootIndex); |
| 2787 | __ Branch(&miss, eq, t0, Operand(at)); |
| 2788 | } |
| 2789 | |
| 2790 | __ mov(v0, t0); |
| 2791 | Counters* counters = masm()->isolate()->counters(); |
| 2792 | __ IncrementCounter(counters->named_load_global_stub(), 1, a1, a3); |
| 2793 | __ Ret(); |
| 2794 | |
| 2795 | __ bind(&miss); |
| 2796 | __ IncrementCounter(counters->named_load_global_stub_miss(), 1, a1, a3); |
| 2797 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 2798 | |
| 2799 | // Return the generated code. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2800 | return GetCode(NORMAL, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2801 | } |
| 2802 | |
| 2803 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2804 | Handle<Code> KeyedLoadStubCompiler::CompileLoadField(Handle<String> name, |
| 2805 | Handle<JSObject> receiver, |
| 2806 | Handle<JSObject> holder, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2807 | int index) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2808 | // ----------- S t a t e ------------- |
| 2809 | // -- ra : return address |
| 2810 | // -- a0 : key |
| 2811 | // -- a1 : receiver |
| 2812 | // ----------------------------------- |
| 2813 | Label miss; |
| 2814 | |
| 2815 | // Check the key is the cached one. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2816 | __ Branch(&miss, ne, a0, Operand(name)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2817 | |
| 2818 | GenerateLoadField(receiver, holder, a1, a2, a3, t0, index, name, &miss); |
| 2819 | __ bind(&miss); |
| 2820 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 2821 | |
| 2822 | return GetCode(FIELD, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2823 | } |
| 2824 | |
| 2825 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2826 | Handle<Code> KeyedLoadStubCompiler::CompileLoadCallback( |
| 2827 | Handle<String> name, |
| 2828 | Handle<JSObject> receiver, |
| 2829 | Handle<JSObject> holder, |
| 2830 | Handle<AccessorInfo> callback) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2831 | // ----------- S t a t e ------------- |
| 2832 | // -- ra : return address |
| 2833 | // -- a0 : key |
| 2834 | // -- a1 : receiver |
| 2835 | // ----------------------------------- |
| 2836 | Label miss; |
| 2837 | |
| 2838 | // Check the key is the cached one. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2839 | __ Branch(&miss, ne, a0, Operand(name)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2840 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2841 | GenerateLoadCallback(receiver, holder, a1, a0, a2, a3, t0, callback, name, |
| 2842 | &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2843 | __ bind(&miss); |
| 2844 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 2845 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2846 | return GetCode(CALLBACKS, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2847 | } |
| 2848 | |
| 2849 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2850 | Handle<Code> KeyedLoadStubCompiler::CompileLoadConstant( |
| 2851 | Handle<String> name, |
| 2852 | Handle<JSObject> receiver, |
| 2853 | Handle<JSObject> holder, |
| 2854 | Handle<Object> value) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2855 | // ----------- S t a t e ------------- |
| 2856 | // -- ra : return address |
| 2857 | // -- a0 : key |
| 2858 | // -- a1 : receiver |
| 2859 | // ----------------------------------- |
| 2860 | Label miss; |
| 2861 | |
| 2862 | // Check the key is the cached one. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2863 | __ Branch(&miss, ne, a0, Operand(name)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2864 | |
| 2865 | GenerateLoadConstant(receiver, holder, a1, a2, a3, t0, value, name, &miss); |
| 2866 | __ bind(&miss); |
| 2867 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 2868 | |
| 2869 | // Return the generated code. |
| 2870 | return GetCode(CONSTANT_FUNCTION, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2871 | } |
| 2872 | |
| 2873 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2874 | Handle<Code> KeyedLoadStubCompiler::CompileLoadInterceptor( |
| 2875 | Handle<JSObject> receiver, |
| 2876 | Handle<JSObject> holder, |
| 2877 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2878 | // ----------- S t a t e ------------- |
| 2879 | // -- ra : return address |
| 2880 | // -- a0 : key |
| 2881 | // -- a1 : receiver |
| 2882 | // ----------------------------------- |
| 2883 | Label miss; |
| 2884 | |
| 2885 | // Check the key is the cached one. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2886 | __ Branch(&miss, ne, a0, Operand(name)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2887 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2888 | LookupResult lookup(isolate()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2889 | LookupPostInterceptor(holder, name, &lookup); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2890 | GenerateLoadInterceptor(receiver, holder, &lookup, a1, a0, a2, a3, t0, name, |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2891 | &miss); |
| 2892 | __ bind(&miss); |
| 2893 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 2894 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 2895 | return GetCode(INTERCEPTOR, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2896 | } |
| 2897 | |
| 2898 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2899 | Handle<Code> KeyedLoadStubCompiler::CompileLoadArrayLength( |
| 2900 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2901 | // ----------- S t a t e ------------- |
| 2902 | // -- ra : return address |
| 2903 | // -- a0 : key |
| 2904 | // -- a1 : receiver |
| 2905 | // ----------------------------------- |
| 2906 | Label miss; |
| 2907 | |
| 2908 | // Check the key is the cached one. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2909 | __ Branch(&miss, ne, a0, Operand(name)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2910 | |
| 2911 | GenerateLoadArrayLength(masm(), a1, a2, &miss); |
| 2912 | __ bind(&miss); |
| 2913 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 2914 | |
| 2915 | return GetCode(CALLBACKS, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2916 | } |
| 2917 | |
| 2918 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2919 | Handle<Code> KeyedLoadStubCompiler::CompileLoadStringLength( |
| 2920 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2921 | // ----------- S t a t e ------------- |
| 2922 | // -- ra : return address |
| 2923 | // -- a0 : key |
| 2924 | // -- a1 : receiver |
| 2925 | // ----------------------------------- |
| 2926 | Label miss; |
| 2927 | |
| 2928 | Counters* counters = masm()->isolate()->counters(); |
| 2929 | __ IncrementCounter(counters->keyed_load_string_length(), 1, a2, a3); |
| 2930 | |
| 2931 | // Check the key is the cached one. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2932 | __ Branch(&miss, ne, a0, Operand(name)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2933 | |
| 2934 | GenerateLoadStringLength(masm(), a1, a2, a3, &miss, true); |
| 2935 | __ bind(&miss); |
| 2936 | __ DecrementCounter(counters->keyed_load_string_length(), 1, a2, a3); |
| 2937 | |
| 2938 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 2939 | |
| 2940 | return GetCode(CALLBACKS, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2941 | } |
| 2942 | |
| 2943 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2944 | Handle<Code> KeyedLoadStubCompiler::CompileLoadFunctionPrototype( |
| 2945 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2946 | // ----------- S t a t e ------------- |
| 2947 | // -- ra : return address |
| 2948 | // -- a0 : key |
| 2949 | // -- a1 : receiver |
| 2950 | // ----------------------------------- |
| 2951 | Label miss; |
| 2952 | |
| 2953 | Counters* counters = masm()->isolate()->counters(); |
| 2954 | __ IncrementCounter(counters->keyed_load_function_prototype(), 1, a2, a3); |
| 2955 | |
| 2956 | // Check the name hasn't changed. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2957 | __ Branch(&miss, ne, a0, Operand(name)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2958 | |
| 2959 | GenerateLoadFunctionPrototype(masm(), a1, a2, a3, &miss); |
| 2960 | __ bind(&miss); |
| 2961 | __ DecrementCounter(counters->keyed_load_function_prototype(), 1, a2, a3); |
| 2962 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 2963 | |
| 2964 | return GetCode(CALLBACKS, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2965 | } |
| 2966 | |
| 2967 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2968 | Handle<Code> KeyedLoadStubCompiler::CompileLoadElement( |
| 2969 | Handle<Map> receiver_map) { |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2970 | // ----------- S t a t e ------------- |
| 2971 | // -- ra : return address |
| 2972 | // -- a0 : key |
| 2973 | // -- a1 : receiver |
| 2974 | // ----------------------------------- |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 2975 | ElementsKind elements_kind = receiver_map->elements_kind(); |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2976 | Handle<Code> stub = KeyedLoadElementStub(elements_kind).GetCode(); |
| 2977 | |
| 2978 | __ DispatchMap(a1, a2, receiver_map, stub, DO_SMI_CHECK); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2979 | |
| 2980 | Handle<Code> ic = isolate()->builtins()->KeyedLoadIC_Miss(); |
| 2981 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 2982 | |
| 2983 | // Return the generated code. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2984 | return GetCode(NORMAL, factory()->empty_string()); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2985 | } |
| 2986 | |
| 2987 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2988 | Handle<Code> KeyedLoadStubCompiler::CompileLoadPolymorphic( |
| 2989 | MapHandleList* receiver_maps, |
| 2990 | CodeHandleList* handler_ics) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2991 | // ----------- S t a t e ------------- |
| 2992 | // -- ra : return address |
| 2993 | // -- a0 : key |
| 2994 | // -- a1 : receiver |
| 2995 | // ----------------------------------- |
| 2996 | Label miss; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2997 | __ JumpIfSmi(a1, &miss); |
| 2998 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2999 | int receiver_count = receiver_maps->length(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3000 | __ lw(a2, FieldMemOperand(a1, HeapObject::kMapOffset)); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3001 | for (int current = 0; current < receiver_count; ++current) { |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3002 | __ Jump(handler_ics->at(current), RelocInfo::CODE_TARGET, |
| 3003 | eq, a2, Operand(receiver_maps->at(current))); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3004 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3005 | |
| 3006 | __ bind(&miss); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3007 | Handle<Code> miss_ic = isolate()->builtins()->KeyedLoadIC_Miss(); |
| 3008 | __ Jump(miss_ic, RelocInfo::CODE_TARGET); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3009 | |
| 3010 | // Return the generated code. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3011 | return GetCode(NORMAL, factory()->empty_string(), MEGAMORPHIC); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3012 | } |
| 3013 | |
| 3014 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3015 | Handle<Code> KeyedStoreStubCompiler::CompileStoreField(Handle<JSObject> object, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3016 | int index, |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3017 | Handle<Map> transition, |
| 3018 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3019 | // ----------- S t a t e ------------- |
| 3020 | // -- a0 : value |
| 3021 | // -- a1 : key |
| 3022 | // -- a2 : receiver |
| 3023 | // -- ra : return address |
| 3024 | // ----------------------------------- |
| 3025 | |
| 3026 | Label miss; |
| 3027 | |
| 3028 | Counters* counters = masm()->isolate()->counters(); |
| 3029 | __ IncrementCounter(counters->keyed_store_field(), 1, a3, t0); |
| 3030 | |
| 3031 | // Check that the name has not changed. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3032 | __ Branch(&miss, ne, a1, Operand(name)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3033 | |
| 3034 | // a3 is used as scratch register. a1 and a2 keep their values if a jump to |
| 3035 | // the miss label is generated. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3036 | GenerateStoreField(masm(), object, index, transition, a2, a1, a3, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3037 | __ bind(&miss); |
| 3038 | |
| 3039 | __ DecrementCounter(counters->keyed_store_field(), 1, a3, t0); |
| 3040 | Handle<Code> ic = masm()->isolate()->builtins()->KeyedStoreIC_Miss(); |
| 3041 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 3042 | |
| 3043 | // Return the generated code. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3044 | return GetCode(transition.is_null() ? FIELD : MAP_TRANSITION, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3045 | } |
| 3046 | |
| 3047 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3048 | Handle<Code> KeyedStoreStubCompiler::CompileStoreElement( |
| 3049 | Handle<Map> receiver_map) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3050 | // ----------- S t a t e ------------- |
| 3051 | // -- a0 : value |
| 3052 | // -- a1 : key |
| 3053 | // -- a2 : receiver |
| 3054 | // -- ra : return address |
| 3055 | // -- a3 : scratch |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3056 | // ----------------------------------- |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3057 | ElementsKind elements_kind = receiver_map->elements_kind(); |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 3058 | bool is_js_array = receiver_map->instance_type() == JS_ARRAY_TYPE; |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3059 | Handle<Code> stub = |
| 3060 | KeyedStoreElementStub(is_js_array, elements_kind).GetCode(); |
| 3061 | |
| 3062 | __ DispatchMap(a2, a3, receiver_map, stub, DO_SMI_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3063 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3064 | Handle<Code> ic = isolate()->builtins()->KeyedStoreIC_Miss(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3065 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 3066 | |
| 3067 | // Return the generated code. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3068 | return GetCode(NORMAL, factory()->empty_string()); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3069 | } |
| 3070 | |
| 3071 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3072 | Handle<Code> KeyedStoreStubCompiler::CompileStorePolymorphic( |
| 3073 | MapHandleList* receiver_maps, |
| 3074 | CodeHandleList* handler_stubs, |
| 3075 | MapHandleList* transitioned_maps) { |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3076 | // ----------- S t a t e ------------- |
| 3077 | // -- a0 : value |
| 3078 | // -- a1 : key |
| 3079 | // -- a2 : receiver |
| 3080 | // -- ra : return address |
| 3081 | // -- a3 : scratch |
| 3082 | // ----------------------------------- |
| 3083 | Label miss; |
| 3084 | __ JumpIfSmi(a2, &miss); |
| 3085 | |
| 3086 | int receiver_count = receiver_maps->length(); |
| 3087 | __ lw(a3, FieldMemOperand(a2, HeapObject::kMapOffset)); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3088 | for (int i = 0; i < receiver_count; ++i) { |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3089 | if (transitioned_maps->at(i).is_null()) { |
| 3090 | __ Jump(handler_stubs->at(i), RelocInfo::CODE_TARGET, eq, |
| 3091 | a3, Operand(receiver_maps->at(i))); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3092 | } else { |
| 3093 | Label next_map; |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3094 | __ Branch(&next_map, ne, a3, Operand(receiver_maps->at(i))); |
| 3095 | __ li(a3, Operand(transitioned_maps->at(i))); |
| 3096 | __ Jump(handler_stubs->at(i), RelocInfo::CODE_TARGET); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3097 | __ bind(&next_map); |
| 3098 | } |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3099 | } |
| 3100 | |
| 3101 | __ bind(&miss); |
| 3102 | Handle<Code> miss_ic = isolate()->builtins()->KeyedStoreIC_Miss(); |
| 3103 | __ Jump(miss_ic, RelocInfo::CODE_TARGET); |
| 3104 | |
| 3105 | // Return the generated code. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3106 | return GetCode(NORMAL, factory()->empty_string(), MEGAMORPHIC); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3107 | } |
| 3108 | |
| 3109 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 3110 | Handle<Code> ConstructStubCompiler::CompileConstructStub( |
| 3111 | Handle<JSFunction> function) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3112 | // a0 : argc |
| 3113 | // a1 : constructor |
| 3114 | // ra : return address |
| 3115 | // [sp] : last argument |
| 3116 | Label generic_stub_call; |
| 3117 | |
| 3118 | // Use t7 for holding undefined which is used in several places below. |
| 3119 | __ LoadRoot(t7, Heap::kUndefinedValueRootIndex); |
| 3120 | |
| 3121 | #ifdef ENABLE_DEBUGGER_SUPPORT |
| 3122 | // Check to see whether there are any break points in the function code. If |
| 3123 | // there are jump to the generic constructor stub which calls the actual |
| 3124 | // code for the function thereby hitting the break points. |
| 3125 | __ lw(t5, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset)); |
| 3126 | __ lw(a2, FieldMemOperand(t5, SharedFunctionInfo::kDebugInfoOffset)); |
| 3127 | __ Branch(&generic_stub_call, ne, a2, Operand(t7)); |
| 3128 | #endif |
| 3129 | |
| 3130 | // Load the initial map and verify that it is in fact a map. |
| 3131 | // a1: constructor function |
| 3132 | // t7: undefined |
| 3133 | __ lw(a2, FieldMemOperand(a1, JSFunction::kPrototypeOrInitialMapOffset)); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 3134 | __ JumpIfSmi(a2, &generic_stub_call); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3135 | __ GetObjectType(a2, a3, t0); |
| 3136 | __ Branch(&generic_stub_call, ne, t0, Operand(MAP_TYPE)); |
| 3137 | |
| 3138 | #ifdef DEBUG |
| 3139 | // Cannot construct functions this way. |
| 3140 | // a0: argc |
| 3141 | // a1: constructor function |
| 3142 | // a2: initial map |
| 3143 | // t7: undefined |
| 3144 | __ lbu(a3, FieldMemOperand(a2, Map::kInstanceTypeOffset)); |
| 3145 | __ Check(ne, "Function constructed by construct stub.", |
| 3146 | a3, Operand(JS_FUNCTION_TYPE)); |
| 3147 | #endif |
| 3148 | |
| 3149 | // Now allocate the JSObject in new space. |
| 3150 | // a0: argc |
| 3151 | // a1: constructor function |
| 3152 | // a2: initial map |
| 3153 | // t7: undefined |
| 3154 | __ lbu(a3, FieldMemOperand(a2, Map::kInstanceSizeOffset)); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 3155 | __ AllocateInNewSpace(a3, t4, t5, t6, &generic_stub_call, SIZE_IN_WORDS); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3156 | |
| 3157 | // Allocated the JSObject, now initialize the fields. Map is set to initial |
| 3158 | // map and properties and elements are set to empty fixed array. |
| 3159 | // a0: argc |
| 3160 | // a1: constructor function |
| 3161 | // a2: initial map |
| 3162 | // a3: object size (in words) |
| 3163 | // t4: JSObject (not tagged) |
| 3164 | // t7: undefined |
| 3165 | __ LoadRoot(t6, Heap::kEmptyFixedArrayRootIndex); |
| 3166 | __ mov(t5, t4); |
| 3167 | __ sw(a2, MemOperand(t5, JSObject::kMapOffset)); |
| 3168 | __ sw(t6, MemOperand(t5, JSObject::kPropertiesOffset)); |
| 3169 | __ sw(t6, MemOperand(t5, JSObject::kElementsOffset)); |
| 3170 | __ Addu(t5, t5, Operand(3 * kPointerSize)); |
| 3171 | ASSERT_EQ(0 * kPointerSize, JSObject::kMapOffset); |
| 3172 | ASSERT_EQ(1 * kPointerSize, JSObject::kPropertiesOffset); |
| 3173 | ASSERT_EQ(2 * kPointerSize, JSObject::kElementsOffset); |
| 3174 | |
| 3175 | |
| 3176 | // Calculate the location of the first argument. The stack contains only the |
| 3177 | // argc arguments. |
| 3178 | __ sll(a1, a0, kPointerSizeLog2); |
| 3179 | __ Addu(a1, a1, sp); |
| 3180 | |
| 3181 | // Fill all the in-object properties with undefined. |
| 3182 | // a0: argc |
| 3183 | // a1: first argument |
| 3184 | // a3: object size (in words) |
| 3185 | // t4: JSObject (not tagged) |
| 3186 | // t5: First in-object property of JSObject (not tagged) |
| 3187 | // t7: undefined |
| 3188 | // Fill the initialized properties with a constant value or a passed argument |
| 3189 | // depending on the this.x = ...; assignment in the function. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 3190 | Handle<SharedFunctionInfo> shared(function->shared()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3191 | for (int i = 0; i < shared->this_property_assignments_count(); i++) { |
| 3192 | if (shared->IsThisPropertyAssignmentArgument(i)) { |
| 3193 | Label not_passed, next; |
| 3194 | // Check if the argument assigned to the property is actually passed. |
| 3195 | int arg_number = shared->GetThisPropertyAssignmentArgument(i); |
| 3196 | __ Branch(¬_passed, less_equal, a0, Operand(arg_number)); |
| 3197 | // Argument passed - find it on the stack. |
| 3198 | __ lw(a2, MemOperand(a1, (arg_number + 1) * -kPointerSize)); |
| 3199 | __ sw(a2, MemOperand(t5)); |
| 3200 | __ Addu(t5, t5, kPointerSize); |
| 3201 | __ jmp(&next); |
| 3202 | __ bind(¬_passed); |
| 3203 | // Set the property to undefined. |
| 3204 | __ sw(t7, MemOperand(t5)); |
| 3205 | __ Addu(t5, t5, Operand(kPointerSize)); |
| 3206 | __ bind(&next); |
| 3207 | } else { |
| 3208 | // Set the property to the constant value. |
| 3209 | Handle<Object> constant(shared->GetThisPropertyAssignmentConstant(i)); |
| 3210 | __ li(a2, Operand(constant)); |
| 3211 | __ sw(a2, MemOperand(t5)); |
| 3212 | __ Addu(t5, t5, kPointerSize); |
| 3213 | } |
| 3214 | } |
| 3215 | |
| 3216 | // Fill the unused in-object property fields with undefined. |
| 3217 | ASSERT(function->has_initial_map()); |
| 3218 | for (int i = shared->this_property_assignments_count(); |
| 3219 | i < function->initial_map()->inobject_properties(); |
| 3220 | i++) { |
| 3221 | __ sw(t7, MemOperand(t5)); |
| 3222 | __ Addu(t5, t5, kPointerSize); |
| 3223 | } |
| 3224 | |
| 3225 | // a0: argc |
| 3226 | // t4: JSObject (not tagged) |
| 3227 | // Move argc to a1 and the JSObject to return to v0 and tag it. |
| 3228 | __ mov(a1, a0); |
| 3229 | __ mov(v0, t4); |
| 3230 | __ Or(v0, v0, Operand(kHeapObjectTag)); |
| 3231 | |
| 3232 | // v0: JSObject |
| 3233 | // a1: argc |
| 3234 | // Remove caller arguments and receiver from the stack and return. |
| 3235 | __ sll(t0, a1, kPointerSizeLog2); |
| 3236 | __ Addu(sp, sp, t0); |
| 3237 | __ Addu(sp, sp, Operand(kPointerSize)); |
| 3238 | Counters* counters = masm()->isolate()->counters(); |
| 3239 | __ IncrementCounter(counters->constructed_objects(), 1, a1, a2); |
| 3240 | __ IncrementCounter(counters->constructed_objects_stub(), 1, a1, a2); |
| 3241 | __ Ret(); |
| 3242 | |
| 3243 | // Jump to the generic stub in case the specialized code cannot handle the |
| 3244 | // construction. |
| 3245 | __ bind(&generic_stub_call); |
| 3246 | Handle<Code> generic_construct_stub = |
| 3247 | masm()->isolate()->builtins()->JSConstructStubGeneric(); |
| 3248 | __ Jump(generic_construct_stub, RelocInfo::CODE_TARGET); |
| 3249 | |
| 3250 | // Return the generated code. |
| 3251 | return GetCode(); |
| 3252 | } |
| 3253 | |
| 3254 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3255 | #undef __ |
| 3256 | #define __ ACCESS_MASM(masm) |
| 3257 | |
| 3258 | |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 3259 | void KeyedLoadStubCompiler::GenerateLoadDictionaryElement( |
| 3260 | MacroAssembler* masm) { |
| 3261 | // ---------- S t a t e -------------- |
| 3262 | // -- ra : return address |
| 3263 | // -- a0 : key |
| 3264 | // -- a1 : receiver |
| 3265 | // ----------------------------------- |
| 3266 | Label slow, miss_force_generic; |
| 3267 | |
| 3268 | Register key = a0; |
| 3269 | Register receiver = a1; |
| 3270 | |
| 3271 | __ JumpIfNotSmi(key, &miss_force_generic); |
| 3272 | __ lw(t0, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
| 3273 | __ sra(a2, a0, kSmiTagSize); |
| 3274 | __ LoadFromNumberDictionary(&slow, t0, a0, v0, a2, a3, t1); |
| 3275 | __ Ret(); |
| 3276 | |
| 3277 | // Slow case, key and receiver still in a0 and a1. |
| 3278 | __ bind(&slow); |
| 3279 | __ IncrementCounter( |
| 3280 | masm->isolate()->counters()->keyed_load_external_array_slow(), |
| 3281 | 1, a2, a3); |
| 3282 | // Entry registers are intact. |
| 3283 | // ---------- S t a t e -------------- |
| 3284 | // -- ra : return address |
| 3285 | // -- a0 : key |
| 3286 | // -- a1 : receiver |
| 3287 | // ----------------------------------- |
| 3288 | Handle<Code> slow_ic = |
| 3289 | masm->isolate()->builtins()->KeyedLoadIC_Slow(); |
| 3290 | __ Jump(slow_ic, RelocInfo::CODE_TARGET); |
| 3291 | |
| 3292 | // Miss case, call the runtime. |
| 3293 | __ bind(&miss_force_generic); |
| 3294 | |
| 3295 | // ---------- S t a t e -------------- |
| 3296 | // -- ra : return address |
| 3297 | // -- a0 : key |
| 3298 | // -- a1 : receiver |
| 3299 | // ----------------------------------- |
| 3300 | |
| 3301 | Handle<Code> miss_ic = |
| 3302 | masm->isolate()->builtins()->KeyedLoadIC_MissForceGeneric(); |
| 3303 | __ Jump(miss_ic, RelocInfo::CODE_TARGET); |
| 3304 | } |
| 3305 | |
| 3306 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3307 | static bool IsElementTypeSigned(ElementsKind elements_kind) { |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3308 | switch (elements_kind) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3309 | case EXTERNAL_BYTE_ELEMENTS: |
| 3310 | case EXTERNAL_SHORT_ELEMENTS: |
| 3311 | case EXTERNAL_INT_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3312 | return true; |
| 3313 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3314 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
| 3315 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
| 3316 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
| 3317 | case EXTERNAL_PIXEL_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3318 | return false; |
| 3319 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3320 | case EXTERNAL_FLOAT_ELEMENTS: |
| 3321 | case EXTERNAL_DOUBLE_ELEMENTS: |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3322 | case FAST_SMI_ONLY_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3323 | case FAST_ELEMENTS: |
| 3324 | case FAST_DOUBLE_ELEMENTS: |
| 3325 | case DICTIONARY_ELEMENTS: |
| 3326 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3327 | UNREACHABLE(); |
| 3328 | return false; |
| 3329 | } |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3330 | return false; |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3331 | } |
| 3332 | |
| 3333 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3334 | void KeyedLoadStubCompiler::GenerateLoadExternalArray( |
| 3335 | MacroAssembler* masm, |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3336 | ElementsKind elements_kind) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3337 | // ---------- S t a t e -------------- |
| 3338 | // -- ra : return address |
| 3339 | // -- a0 : key |
| 3340 | // -- a1 : receiver |
| 3341 | // ----------------------------------- |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3342 | Label miss_force_generic, slow, failed_allocation; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3343 | |
| 3344 | Register key = a0; |
| 3345 | Register receiver = a1; |
| 3346 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3347 | // This stub is meant to be tail-jumped to, the receiver must already |
| 3348 | // have been verified by the caller to not be a smi. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3349 | |
| 3350 | // Check that the key is a smi. |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3351 | __ JumpIfNotSmi(key, &miss_force_generic); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3352 | |
| 3353 | __ lw(a3, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
| 3354 | // a3: elements array |
| 3355 | |
| 3356 | // Check that the index is in range. |
| 3357 | __ lw(t1, FieldMemOperand(a3, ExternalArray::kLengthOffset)); |
| 3358 | __ sra(t2, key, kSmiTagSize); |
| 3359 | // Unsigned comparison catches both negative and too-large values. |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3360 | __ Branch(&miss_force_generic, Ugreater_equal, key, Operand(t1)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3361 | |
| 3362 | __ lw(a3, FieldMemOperand(a3, ExternalArray::kExternalPointerOffset)); |
| 3363 | // a3: base pointer of external storage |
| 3364 | |
| 3365 | // We are not untagging smi key and instead work with it |
| 3366 | // as if it was premultiplied by 2. |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 3367 | STATIC_ASSERT((kSmiTag == 0) && (kSmiTagSize == 1)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3368 | |
| 3369 | Register value = a2; |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3370 | switch (elements_kind) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3371 | case EXTERNAL_BYTE_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3372 | __ srl(t2, key, 1); |
| 3373 | __ addu(t3, a3, t2); |
| 3374 | __ lb(value, MemOperand(t3, 0)); |
| 3375 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3376 | case EXTERNAL_PIXEL_ELEMENTS: |
| 3377 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3378 | __ srl(t2, key, 1); |
| 3379 | __ addu(t3, a3, t2); |
| 3380 | __ lbu(value, MemOperand(t3, 0)); |
| 3381 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3382 | case EXTERNAL_SHORT_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3383 | __ addu(t3, a3, key); |
| 3384 | __ lh(value, MemOperand(t3, 0)); |
| 3385 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3386 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3387 | __ addu(t3, a3, key); |
| 3388 | __ lhu(value, MemOperand(t3, 0)); |
| 3389 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3390 | case EXTERNAL_INT_ELEMENTS: |
| 3391 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3392 | __ sll(t2, key, 1); |
| 3393 | __ addu(t3, a3, t2); |
| 3394 | __ lw(value, MemOperand(t3, 0)); |
| 3395 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3396 | case EXTERNAL_FLOAT_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3397 | __ sll(t3, t2, 2); |
| 3398 | __ addu(t3, a3, t3); |
| 3399 | if (CpuFeatures::IsSupported(FPU)) { |
| 3400 | CpuFeatures::Scope scope(FPU); |
| 3401 | __ lwc1(f0, MemOperand(t3, 0)); |
| 3402 | } else { |
| 3403 | __ lw(value, MemOperand(t3, 0)); |
| 3404 | } |
| 3405 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3406 | case EXTERNAL_DOUBLE_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3407 | __ sll(t2, key, 2); |
| 3408 | __ addu(t3, a3, t2); |
| 3409 | if (CpuFeatures::IsSupported(FPU)) { |
| 3410 | CpuFeatures::Scope scope(FPU); |
| 3411 | __ ldc1(f0, MemOperand(t3, 0)); |
| 3412 | } else { |
| 3413 | // t3: pointer to the beginning of the double we want to load. |
| 3414 | __ lw(a2, MemOperand(t3, 0)); |
| 3415 | __ lw(a3, MemOperand(t3, Register::kSizeInBytes)); |
| 3416 | } |
| 3417 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3418 | case FAST_ELEMENTS: |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3419 | case FAST_SMI_ONLY_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3420 | case FAST_DOUBLE_ELEMENTS: |
| 3421 | case DICTIONARY_ELEMENTS: |
| 3422 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3423 | UNREACHABLE(); |
| 3424 | break; |
| 3425 | } |
| 3426 | |
| 3427 | // For integer array types: |
| 3428 | // a2: value |
| 3429 | // For float array type: |
| 3430 | // f0: value (if FPU is supported) |
| 3431 | // a2: value (if FPU is not supported) |
| 3432 | // For double array type: |
| 3433 | // f0: value (if FPU is supported) |
| 3434 | // a2/a3: value (if FPU is not supported) |
| 3435 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3436 | if (elements_kind == EXTERNAL_INT_ELEMENTS) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3437 | // For the Int and UnsignedInt array types, we need to see whether |
| 3438 | // the value can be represented in a Smi. If not, we need to convert |
| 3439 | // it to a HeapNumber. |
| 3440 | Label box_int; |
| 3441 | __ Subu(t3, value, Operand(0xC0000000)); // Non-smi value gives neg result. |
| 3442 | __ Branch(&box_int, lt, t3, Operand(zero_reg)); |
| 3443 | // Tag integer as smi and return it. |
| 3444 | __ sll(v0, value, kSmiTagSize); |
| 3445 | __ Ret(); |
| 3446 | |
| 3447 | __ bind(&box_int); |
| 3448 | // Allocate a HeapNumber for the result and perform int-to-double |
| 3449 | // conversion. |
| 3450 | // The arm version uses a temporary here to save r0, but we don't need to |
| 3451 | // (a0 is not modified). |
| 3452 | __ LoadRoot(t1, Heap::kHeapNumberMapRootIndex); |
| 3453 | __ AllocateHeapNumber(v0, a3, t0, t1, &slow); |
| 3454 | |
| 3455 | if (CpuFeatures::IsSupported(FPU)) { |
| 3456 | CpuFeatures::Scope scope(FPU); |
| 3457 | __ mtc1(value, f0); |
| 3458 | __ cvt_d_w(f0, f0); |
| 3459 | __ sdc1(f0, MemOperand(v0, HeapNumber::kValueOffset - kHeapObjectTag)); |
| 3460 | __ Ret(); |
| 3461 | } else { |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3462 | Register dst1 = t2; |
| 3463 | Register dst2 = t3; |
| 3464 | FloatingPointHelper::Destination dest = |
| 3465 | FloatingPointHelper::kCoreRegisters; |
| 3466 | FloatingPointHelper::ConvertIntToDouble(masm, |
| 3467 | value, |
| 3468 | dest, |
| 3469 | f0, |
| 3470 | dst1, |
| 3471 | dst2, |
| 3472 | t1, |
| 3473 | f2); |
| 3474 | __ sw(dst1, FieldMemOperand(v0, HeapNumber::kMantissaOffset)); |
| 3475 | __ sw(dst2, FieldMemOperand(v0, HeapNumber::kExponentOffset)); |
| 3476 | __ Ret(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3477 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3478 | } else if (elements_kind == EXTERNAL_UNSIGNED_INT_ELEMENTS) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3479 | // The test is different for unsigned int values. Since we need |
| 3480 | // the value to be in the range of a positive smi, we can't |
| 3481 | // handle either of the top two bits being set in the value. |
| 3482 | if (CpuFeatures::IsSupported(FPU)) { |
| 3483 | CpuFeatures::Scope scope(FPU); |
| 3484 | Label pl_box_int; |
| 3485 | __ And(t2, value, Operand(0xC0000000)); |
| 3486 | __ Branch(&pl_box_int, ne, t2, Operand(zero_reg)); |
| 3487 | |
| 3488 | // It can fit in an Smi. |
| 3489 | // Tag integer as smi and return it. |
| 3490 | __ sll(v0, value, kSmiTagSize); |
| 3491 | __ Ret(); |
| 3492 | |
| 3493 | __ bind(&pl_box_int); |
| 3494 | // Allocate a HeapNumber for the result and perform int-to-double |
| 3495 | // conversion. Don't use a0 and a1 as AllocateHeapNumber clobbers all |
| 3496 | // registers - also when jumping due to exhausted young space. |
| 3497 | __ LoadRoot(t6, Heap::kHeapNumberMapRootIndex); |
| 3498 | __ AllocateHeapNumber(v0, t2, t3, t6, &slow); |
| 3499 | |
| 3500 | // This is replaced by a macro: |
| 3501 | // __ mtc1(value, f0); // LS 32-bits. |
| 3502 | // __ mtc1(zero_reg, f1); // MS 32-bits are all zero. |
| 3503 | // __ cvt_d_l(f0, f0); // Use 64 bit conv to get correct unsigned 32-bit. |
| 3504 | |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 3505 | __ Cvt_d_uw(f0, value, f22); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3506 | |
| 3507 | __ sdc1(f0, MemOperand(v0, HeapNumber::kValueOffset - kHeapObjectTag)); |
| 3508 | |
| 3509 | __ Ret(); |
| 3510 | } else { |
| 3511 | // Check whether unsigned integer fits into smi. |
| 3512 | Label box_int_0, box_int_1, done; |
| 3513 | __ And(t2, value, Operand(0x80000000)); |
| 3514 | __ Branch(&box_int_0, ne, t2, Operand(zero_reg)); |
| 3515 | __ And(t2, value, Operand(0x40000000)); |
| 3516 | __ Branch(&box_int_1, ne, t2, Operand(zero_reg)); |
| 3517 | |
| 3518 | // Tag integer as smi and return it. |
| 3519 | __ sll(v0, value, kSmiTagSize); |
| 3520 | __ Ret(); |
| 3521 | |
| 3522 | Register hiword = value; // a2. |
| 3523 | Register loword = a3; |
| 3524 | |
| 3525 | __ bind(&box_int_0); |
| 3526 | // Integer does not have leading zeros. |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3527 | GenerateUInt2Double(masm, hiword, loword, t0, 0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3528 | __ Branch(&done); |
| 3529 | |
| 3530 | __ bind(&box_int_1); |
| 3531 | // Integer has one leading zero. |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3532 | GenerateUInt2Double(masm, hiword, loword, t0, 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3533 | |
| 3534 | |
| 3535 | __ bind(&done); |
| 3536 | // Integer was converted to double in registers hiword:loword. |
| 3537 | // Wrap it into a HeapNumber. Don't use a0 and a1 as AllocateHeapNumber |
| 3538 | // clobbers all registers - also when jumping due to exhausted young |
| 3539 | // space. |
| 3540 | __ LoadRoot(t6, Heap::kHeapNumberMapRootIndex); |
| 3541 | __ AllocateHeapNumber(t2, t3, t5, t6, &slow); |
| 3542 | |
| 3543 | __ sw(hiword, FieldMemOperand(t2, HeapNumber::kExponentOffset)); |
| 3544 | __ sw(loword, FieldMemOperand(t2, HeapNumber::kMantissaOffset)); |
| 3545 | |
| 3546 | __ mov(v0, t2); |
| 3547 | __ Ret(); |
| 3548 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3549 | } else if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3550 | // For the floating-point array type, we need to always allocate a |
| 3551 | // HeapNumber. |
| 3552 | if (CpuFeatures::IsSupported(FPU)) { |
| 3553 | CpuFeatures::Scope scope(FPU); |
| 3554 | // Allocate a HeapNumber for the result. Don't use a0 and a1 as |
| 3555 | // AllocateHeapNumber clobbers all registers - also when jumping due to |
| 3556 | // exhausted young space. |
| 3557 | __ LoadRoot(t6, Heap::kHeapNumberMapRootIndex); |
| 3558 | __ AllocateHeapNumber(v0, t3, t5, t6, &slow); |
| 3559 | // The float (single) value is already in fpu reg f0 (if we use float). |
| 3560 | __ cvt_d_s(f0, f0); |
| 3561 | __ sdc1(f0, MemOperand(v0, HeapNumber::kValueOffset - kHeapObjectTag)); |
| 3562 | __ Ret(); |
| 3563 | } else { |
| 3564 | // Allocate a HeapNumber for the result. Don't use a0 and a1 as |
| 3565 | // AllocateHeapNumber clobbers all registers - also when jumping due to |
| 3566 | // exhausted young space. |
| 3567 | __ LoadRoot(t6, Heap::kHeapNumberMapRootIndex); |
| 3568 | __ AllocateHeapNumber(v0, t3, t5, t6, &slow); |
| 3569 | // FPU is not available, do manual single to double conversion. |
| 3570 | |
| 3571 | // a2: floating point value (binary32). |
| 3572 | // v0: heap number for result |
| 3573 | |
| 3574 | // Extract mantissa to t4. |
| 3575 | __ And(t4, value, Operand(kBinary32MantissaMask)); |
| 3576 | |
| 3577 | // Extract exponent to t5. |
| 3578 | __ srl(t5, value, kBinary32MantissaBits); |
| 3579 | __ And(t5, t5, Operand(kBinary32ExponentMask >> kBinary32MantissaBits)); |
| 3580 | |
| 3581 | Label exponent_rebiased; |
| 3582 | __ Branch(&exponent_rebiased, eq, t5, Operand(zero_reg)); |
| 3583 | |
| 3584 | __ li(t0, 0x7ff); |
| 3585 | __ Xor(t1, t5, Operand(0xFF)); |
| 3586 | __ movz(t5, t0, t1); // Set t5 to 0x7ff only if t5 is equal to 0xff. |
| 3587 | __ Branch(&exponent_rebiased, eq, t0, Operand(0xff)); |
| 3588 | |
| 3589 | // Rebias exponent. |
| 3590 | __ Addu(t5, |
| 3591 | t5, |
| 3592 | Operand(-kBinary32ExponentBias + HeapNumber::kExponentBias)); |
| 3593 | |
| 3594 | __ bind(&exponent_rebiased); |
| 3595 | __ And(a2, value, Operand(kBinary32SignMask)); |
| 3596 | value = no_reg; |
| 3597 | __ sll(t0, t5, HeapNumber::kMantissaBitsInTopWord); |
| 3598 | __ or_(a2, a2, t0); |
| 3599 | |
| 3600 | // Shift mantissa. |
| 3601 | static const int kMantissaShiftForHiWord = |
| 3602 | kBinary32MantissaBits - HeapNumber::kMantissaBitsInTopWord; |
| 3603 | |
| 3604 | static const int kMantissaShiftForLoWord = |
| 3605 | kBitsPerInt - kMantissaShiftForHiWord; |
| 3606 | |
| 3607 | __ srl(t0, t4, kMantissaShiftForHiWord); |
| 3608 | __ or_(a2, a2, t0); |
| 3609 | __ sll(a0, t4, kMantissaShiftForLoWord); |
| 3610 | |
| 3611 | __ sw(a2, FieldMemOperand(v0, HeapNumber::kExponentOffset)); |
| 3612 | __ sw(a0, FieldMemOperand(v0, HeapNumber::kMantissaOffset)); |
| 3613 | __ Ret(); |
| 3614 | } |
| 3615 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3616 | } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3617 | if (CpuFeatures::IsSupported(FPU)) { |
| 3618 | CpuFeatures::Scope scope(FPU); |
| 3619 | // Allocate a HeapNumber for the result. Don't use a0 and a1 as |
| 3620 | // AllocateHeapNumber clobbers all registers - also when jumping due to |
| 3621 | // exhausted young space. |
| 3622 | __ LoadRoot(t6, Heap::kHeapNumberMapRootIndex); |
| 3623 | __ AllocateHeapNumber(v0, t3, t5, t6, &slow); |
| 3624 | // The double value is already in f0 |
| 3625 | __ sdc1(f0, FieldMemOperand(v0, HeapNumber::kValueOffset)); |
| 3626 | __ Ret(); |
| 3627 | } else { |
| 3628 | // Allocate a HeapNumber for the result. Don't use a0 and a1 as |
| 3629 | // AllocateHeapNumber clobbers all registers - also when jumping due to |
| 3630 | // exhausted young space. |
| 3631 | __ LoadRoot(t6, Heap::kHeapNumberMapRootIndex); |
| 3632 | __ AllocateHeapNumber(v0, t3, t5, t6, &slow); |
| 3633 | |
| 3634 | __ sw(a2, FieldMemOperand(v0, HeapNumber::kMantissaOffset)); |
| 3635 | __ sw(a3, FieldMemOperand(v0, HeapNumber::kExponentOffset)); |
| 3636 | __ Ret(); |
| 3637 | } |
| 3638 | |
| 3639 | } else { |
| 3640 | // Tag integer as smi and return it. |
| 3641 | __ sll(v0, value, kSmiTagSize); |
| 3642 | __ Ret(); |
| 3643 | } |
| 3644 | |
| 3645 | // Slow case, key and receiver still in a0 and a1. |
| 3646 | __ bind(&slow); |
| 3647 | __ IncrementCounter( |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3648 | masm->isolate()->counters()->keyed_load_external_array_slow(), |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3649 | 1, a2, a3); |
| 3650 | |
| 3651 | // ---------- S t a t e -------------- |
| 3652 | // -- ra : return address |
| 3653 | // -- a0 : key |
| 3654 | // -- a1 : receiver |
| 3655 | // ----------------------------------- |
| 3656 | |
| 3657 | __ Push(a1, a0); |
| 3658 | |
| 3659 | __ TailCallRuntime(Runtime::kKeyedGetProperty, 2, 1); |
| 3660 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3661 | __ bind(&miss_force_generic); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 3662 | Handle<Code> stub = |
| 3663 | masm->isolate()->builtins()->KeyedLoadIC_MissForceGeneric(); |
| 3664 | __ Jump(stub, RelocInfo::CODE_TARGET); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3665 | } |
| 3666 | |
| 3667 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3668 | void KeyedStoreStubCompiler::GenerateStoreExternalArray( |
| 3669 | MacroAssembler* masm, |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3670 | ElementsKind elements_kind) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3671 | // ---------- S t a t e -------------- |
| 3672 | // -- a0 : value |
| 3673 | // -- a1 : key |
| 3674 | // -- a2 : receiver |
| 3675 | // -- ra : return address |
| 3676 | // ----------------------------------- |
| 3677 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3678 | Label slow, check_heap_number, miss_force_generic; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3679 | |
| 3680 | // Register usage. |
| 3681 | Register value = a0; |
| 3682 | Register key = a1; |
| 3683 | Register receiver = a2; |
| 3684 | // a3 mostly holds the elements array or the destination external array. |
| 3685 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3686 | // This stub is meant to be tail-jumped to, the receiver must already |
| 3687 | // have been verified by the caller to not be a smi. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3688 | |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3689 | // Check that the key is a smi. |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3690 | __ JumpIfNotSmi(key, &miss_force_generic); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3691 | |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3692 | __ lw(a3, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
| 3693 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3694 | // Check that the index is in range. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3695 | __ lw(t1, FieldMemOperand(a3, ExternalArray::kLengthOffset)); |
| 3696 | // Unsigned comparison catches both negative and too-large values. |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3697 | __ Branch(&miss_force_generic, Ugreater_equal, key, Operand(t1)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3698 | |
| 3699 | // Handle both smis and HeapNumbers in the fast path. Go to the |
| 3700 | // runtime for all other kinds of values. |
| 3701 | // a3: external array. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3702 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3703 | if (elements_kind == EXTERNAL_PIXEL_ELEMENTS) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3704 | // Double to pixel conversion is only implemented in the runtime for now. |
| 3705 | __ JumpIfNotSmi(value, &slow); |
| 3706 | } else { |
| 3707 | __ JumpIfNotSmi(value, &check_heap_number); |
| 3708 | } |
| 3709 | __ SmiUntag(t1, value); |
| 3710 | __ lw(a3, FieldMemOperand(a3, ExternalArray::kExternalPointerOffset)); |
| 3711 | |
| 3712 | // a3: base pointer of external storage. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3713 | // t1: value (integer). |
| 3714 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3715 | switch (elements_kind) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3716 | case EXTERNAL_PIXEL_ELEMENTS: { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3717 | // Clamp the value to [0..255]. |
| 3718 | // v0 is used as a scratch register here. |
| 3719 | Label done; |
| 3720 | __ li(v0, Operand(255)); |
| 3721 | // Normal branch: nop in delay slot. |
| 3722 | __ Branch(&done, gt, t1, Operand(v0)); |
| 3723 | // Use delay slot in this branch. |
| 3724 | __ Branch(USE_DELAY_SLOT, &done, lt, t1, Operand(zero_reg)); |
| 3725 | __ mov(v0, zero_reg); // In delay slot. |
| 3726 | __ mov(v0, t1); // Value is in range 0..255. |
| 3727 | __ bind(&done); |
| 3728 | __ mov(t1, v0); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3729 | |
| 3730 | __ srl(t8, key, 1); |
| 3731 | __ addu(t8, a3, t8); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3732 | __ sb(t1, MemOperand(t8, 0)); |
| 3733 | } |
| 3734 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3735 | case EXTERNAL_BYTE_ELEMENTS: |
| 3736 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3737 | __ srl(t8, key, 1); |
| 3738 | __ addu(t8, a3, t8); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3739 | __ sb(t1, MemOperand(t8, 0)); |
| 3740 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3741 | case EXTERNAL_SHORT_ELEMENTS: |
| 3742 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3743 | __ addu(t8, a3, key); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3744 | __ sh(t1, MemOperand(t8, 0)); |
| 3745 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3746 | case EXTERNAL_INT_ELEMENTS: |
| 3747 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3748 | __ sll(t8, key, 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3749 | __ addu(t8, a3, t8); |
| 3750 | __ sw(t1, MemOperand(t8, 0)); |
| 3751 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3752 | case EXTERNAL_FLOAT_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3753 | // Perform int-to-float conversion and store to memory. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3754 | __ SmiUntag(t0, key); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3755 | StoreIntAsFloat(masm, a3, t0, t1, t2, t3, t4); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3756 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3757 | case EXTERNAL_DOUBLE_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3758 | __ sll(t8, key, 2); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3759 | __ addu(a3, a3, t8); |
| 3760 | // a3: effective address of the double element |
| 3761 | FloatingPointHelper::Destination destination; |
| 3762 | if (CpuFeatures::IsSupported(FPU)) { |
| 3763 | destination = FloatingPointHelper::kFPURegisters; |
| 3764 | } else { |
| 3765 | destination = FloatingPointHelper::kCoreRegisters; |
| 3766 | } |
| 3767 | FloatingPointHelper::ConvertIntToDouble( |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3768 | masm, t1, destination, |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3769 | f0, t2, t3, // These are: double_dst, dst1, dst2. |
| 3770 | t0, f2); // These are: scratch2, single_scratch. |
| 3771 | if (destination == FloatingPointHelper::kFPURegisters) { |
| 3772 | CpuFeatures::Scope scope(FPU); |
| 3773 | __ sdc1(f0, MemOperand(a3, 0)); |
| 3774 | } else { |
| 3775 | __ sw(t2, MemOperand(a3, 0)); |
| 3776 | __ sw(t3, MemOperand(a3, Register::kSizeInBytes)); |
| 3777 | } |
| 3778 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3779 | case FAST_ELEMENTS: |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3780 | case FAST_SMI_ONLY_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3781 | case FAST_DOUBLE_ELEMENTS: |
| 3782 | case DICTIONARY_ELEMENTS: |
| 3783 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3784 | UNREACHABLE(); |
| 3785 | break; |
| 3786 | } |
| 3787 | |
| 3788 | // Entry registers are intact, a0 holds the value which is the return value. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3789 | __ mov(v0, a0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3790 | __ Ret(); |
| 3791 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3792 | if (elements_kind != EXTERNAL_PIXEL_ELEMENTS) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3793 | // a3: external array. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3794 | __ bind(&check_heap_number); |
| 3795 | __ GetObjectType(value, t1, t2); |
| 3796 | __ Branch(&slow, ne, t2, Operand(HEAP_NUMBER_TYPE)); |
| 3797 | |
| 3798 | __ lw(a3, FieldMemOperand(a3, ExternalArray::kExternalPointerOffset)); |
| 3799 | |
| 3800 | // a3: base pointer of external storage. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3801 | |
| 3802 | // The WebGL specification leaves the behavior of storing NaN and |
| 3803 | // +/-Infinity into integer arrays basically undefined. For more |
| 3804 | // reproducible behavior, convert these to zero. |
| 3805 | |
| 3806 | if (CpuFeatures::IsSupported(FPU)) { |
| 3807 | CpuFeatures::Scope scope(FPU); |
| 3808 | |
| 3809 | __ ldc1(f0, FieldMemOperand(a0, HeapNumber::kValueOffset)); |
| 3810 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3811 | if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3812 | __ cvt_s_d(f0, f0); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3813 | __ sll(t8, key, 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3814 | __ addu(t8, a3, t8); |
| 3815 | __ swc1(f0, MemOperand(t8, 0)); |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3816 | } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3817 | __ sll(t8, key, 2); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3818 | __ addu(t8, a3, t8); |
| 3819 | __ sdc1(f0, MemOperand(t8, 0)); |
| 3820 | } else { |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 3821 | __ EmitECMATruncate(t3, f0, f2, t2, t1, t5); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3822 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3823 | switch (elements_kind) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3824 | case EXTERNAL_BYTE_ELEMENTS: |
| 3825 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3826 | __ srl(t8, key, 1); |
| 3827 | __ addu(t8, a3, t8); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3828 | __ sb(t3, MemOperand(t8, 0)); |
| 3829 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3830 | case EXTERNAL_SHORT_ELEMENTS: |
| 3831 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3832 | __ addu(t8, a3, key); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3833 | __ sh(t3, MemOperand(t8, 0)); |
| 3834 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3835 | case EXTERNAL_INT_ELEMENTS: |
| 3836 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3837 | __ sll(t8, key, 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3838 | __ addu(t8, a3, t8); |
| 3839 | __ sw(t3, MemOperand(t8, 0)); |
| 3840 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3841 | case EXTERNAL_PIXEL_ELEMENTS: |
| 3842 | case EXTERNAL_FLOAT_ELEMENTS: |
| 3843 | case EXTERNAL_DOUBLE_ELEMENTS: |
| 3844 | case FAST_ELEMENTS: |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3845 | case FAST_SMI_ONLY_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3846 | case FAST_DOUBLE_ELEMENTS: |
| 3847 | case DICTIONARY_ELEMENTS: |
| 3848 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3849 | UNREACHABLE(); |
| 3850 | break; |
| 3851 | } |
| 3852 | } |
| 3853 | |
| 3854 | // Entry registers are intact, a0 holds the value |
| 3855 | // which is the return value. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3856 | __ mov(v0, a0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3857 | __ Ret(); |
| 3858 | } else { |
| 3859 | // FPU is not available, do manual conversions. |
| 3860 | |
| 3861 | __ lw(t3, FieldMemOperand(value, HeapNumber::kExponentOffset)); |
| 3862 | __ lw(t4, FieldMemOperand(value, HeapNumber::kMantissaOffset)); |
| 3863 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3864 | if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3865 | Label done, nan_or_infinity_or_zero; |
| 3866 | static const int kMantissaInHiWordShift = |
| 3867 | kBinary32MantissaBits - HeapNumber::kMantissaBitsInTopWord; |
| 3868 | |
| 3869 | static const int kMantissaInLoWordShift = |
| 3870 | kBitsPerInt - kMantissaInHiWordShift; |
| 3871 | |
| 3872 | // Test for all special exponent values: zeros, subnormal numbers, NaNs |
| 3873 | // and infinities. All these should be converted to 0. |
| 3874 | __ li(t5, HeapNumber::kExponentMask); |
| 3875 | __ and_(t6, t3, t5); |
| 3876 | __ Branch(&nan_or_infinity_or_zero, eq, t6, Operand(zero_reg)); |
| 3877 | |
| 3878 | __ xor_(t1, t6, t5); |
| 3879 | __ li(t2, kBinary32ExponentMask); |
| 3880 | __ movz(t6, t2, t1); // Only if t6 is equal to t5. |
| 3881 | __ Branch(&nan_or_infinity_or_zero, eq, t6, Operand(t5)); |
| 3882 | |
| 3883 | // Rebias exponent. |
| 3884 | __ srl(t6, t6, HeapNumber::kExponentShift); |
| 3885 | __ Addu(t6, |
| 3886 | t6, |
| 3887 | Operand(kBinary32ExponentBias - HeapNumber::kExponentBias)); |
| 3888 | |
| 3889 | __ li(t1, Operand(kBinary32MaxExponent)); |
| 3890 | __ Slt(t1, t1, t6); |
| 3891 | __ And(t2, t3, Operand(HeapNumber::kSignMask)); |
| 3892 | __ Or(t2, t2, Operand(kBinary32ExponentMask)); |
| 3893 | __ movn(t3, t2, t1); // Only if t6 is gt kBinary32MaxExponent. |
| 3894 | __ Branch(&done, gt, t6, Operand(kBinary32MaxExponent)); |
| 3895 | |
| 3896 | __ Slt(t1, t6, Operand(kBinary32MinExponent)); |
| 3897 | __ And(t2, t3, Operand(HeapNumber::kSignMask)); |
| 3898 | __ movn(t3, t2, t1); // Only if t6 is lt kBinary32MinExponent. |
| 3899 | __ Branch(&done, lt, t6, Operand(kBinary32MinExponent)); |
| 3900 | |
| 3901 | __ And(t7, t3, Operand(HeapNumber::kSignMask)); |
| 3902 | __ And(t3, t3, Operand(HeapNumber::kMantissaMask)); |
| 3903 | __ sll(t3, t3, kMantissaInHiWordShift); |
| 3904 | __ or_(t7, t7, t3); |
| 3905 | __ srl(t4, t4, kMantissaInLoWordShift); |
| 3906 | __ or_(t7, t7, t4); |
| 3907 | __ sll(t6, t6, kBinary32ExponentShift); |
| 3908 | __ or_(t3, t7, t6); |
| 3909 | |
| 3910 | __ bind(&done); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3911 | __ sll(t9, key, 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3912 | __ addu(t9, a2, t9); |
| 3913 | __ sw(t3, MemOperand(t9, 0)); |
| 3914 | |
| 3915 | // Entry registers are intact, a0 holds the value which is the return |
| 3916 | // value. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3917 | __ mov(v0, a0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3918 | __ Ret(); |
| 3919 | |
| 3920 | __ bind(&nan_or_infinity_or_zero); |
| 3921 | __ And(t7, t3, Operand(HeapNumber::kSignMask)); |
| 3922 | __ And(t3, t3, Operand(HeapNumber::kMantissaMask)); |
| 3923 | __ or_(t6, t6, t7); |
| 3924 | __ sll(t3, t3, kMantissaInHiWordShift); |
| 3925 | __ or_(t6, t6, t3); |
| 3926 | __ srl(t4, t4, kMantissaInLoWordShift); |
| 3927 | __ or_(t3, t6, t4); |
| 3928 | __ Branch(&done); |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3929 | } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3930 | __ sll(t8, t0, 3); |
| 3931 | __ addu(t8, a3, t8); |
| 3932 | // t8: effective address of destination element. |
| 3933 | __ sw(t4, MemOperand(t8, 0)); |
| 3934 | __ sw(t3, MemOperand(t8, Register::kSizeInBytes)); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3935 | __ mov(v0, a0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3936 | __ Ret(); |
| 3937 | } else { |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3938 | bool is_signed_type = IsElementTypeSigned(elements_kind); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3939 | int meaningfull_bits = is_signed_type ? (kBitsPerInt - 1) : kBitsPerInt; |
| 3940 | int32_t min_value = is_signed_type ? 0x80000000 : 0x00000000; |
| 3941 | |
| 3942 | Label done, sign; |
| 3943 | |
| 3944 | // Test for all special exponent values: zeros, subnormal numbers, NaNs |
| 3945 | // and infinities. All these should be converted to 0. |
| 3946 | __ li(t5, HeapNumber::kExponentMask); |
| 3947 | __ and_(t6, t3, t5); |
| 3948 | __ movz(t3, zero_reg, t6); // Only if t6 is equal to zero. |
| 3949 | __ Branch(&done, eq, t6, Operand(zero_reg)); |
| 3950 | |
| 3951 | __ xor_(t2, t6, t5); |
| 3952 | __ movz(t3, zero_reg, t2); // Only if t6 is equal to t5. |
| 3953 | __ Branch(&done, eq, t6, Operand(t5)); |
| 3954 | |
| 3955 | // Unbias exponent. |
| 3956 | __ srl(t6, t6, HeapNumber::kExponentShift); |
| 3957 | __ Subu(t6, t6, Operand(HeapNumber::kExponentBias)); |
| 3958 | // If exponent is negative then result is 0. |
| 3959 | __ slt(t2, t6, zero_reg); |
| 3960 | __ movn(t3, zero_reg, t2); // Only if exponent is negative. |
| 3961 | __ Branch(&done, lt, t6, Operand(zero_reg)); |
| 3962 | |
| 3963 | // If exponent is too big then result is minimal value. |
| 3964 | __ slti(t1, t6, meaningfull_bits - 1); |
| 3965 | __ li(t2, min_value); |
| 3966 | __ movz(t3, t2, t1); // Only if t6 is ge meaningfull_bits - 1. |
| 3967 | __ Branch(&done, ge, t6, Operand(meaningfull_bits - 1)); |
| 3968 | |
| 3969 | __ And(t5, t3, Operand(HeapNumber::kSignMask)); |
| 3970 | __ And(t3, t3, Operand(HeapNumber::kMantissaMask)); |
| 3971 | __ Or(t3, t3, Operand(1u << HeapNumber::kMantissaBitsInTopWord)); |
| 3972 | |
| 3973 | __ li(t9, HeapNumber::kMantissaBitsInTopWord); |
| 3974 | __ subu(t6, t9, t6); |
| 3975 | __ slt(t1, t6, zero_reg); |
| 3976 | __ srlv(t2, t3, t6); |
| 3977 | __ movz(t3, t2, t1); // Only if t6 is positive. |
| 3978 | __ Branch(&sign, ge, t6, Operand(zero_reg)); |
| 3979 | |
| 3980 | __ subu(t6, zero_reg, t6); |
| 3981 | __ sllv(t3, t3, t6); |
| 3982 | __ li(t9, meaningfull_bits); |
| 3983 | __ subu(t6, t9, t6); |
| 3984 | __ srlv(t4, t4, t6); |
| 3985 | __ or_(t3, t3, t4); |
| 3986 | |
| 3987 | __ bind(&sign); |
| 3988 | __ subu(t2, t3, zero_reg); |
| 3989 | __ movz(t3, t2, t5); // Only if t5 is zero. |
| 3990 | |
| 3991 | __ bind(&done); |
| 3992 | |
| 3993 | // Result is in t3. |
| 3994 | // This switch block should be exactly the same as above (FPU mode). |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3995 | switch (elements_kind) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3996 | case EXTERNAL_BYTE_ELEMENTS: |
| 3997 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3998 | __ srl(t8, key, 1); |
| 3999 | __ addu(t8, a3, t8); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4000 | __ sb(t3, MemOperand(t8, 0)); |
| 4001 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4002 | case EXTERNAL_SHORT_ELEMENTS: |
| 4003 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4004 | __ addu(t8, a3, key); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4005 | __ sh(t3, MemOperand(t8, 0)); |
| 4006 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4007 | case EXTERNAL_INT_ELEMENTS: |
| 4008 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4009 | __ sll(t8, key, 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4010 | __ addu(t8, a3, t8); |
| 4011 | __ sw(t3, MemOperand(t8, 0)); |
| 4012 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4013 | case EXTERNAL_PIXEL_ELEMENTS: |
| 4014 | case EXTERNAL_FLOAT_ELEMENTS: |
| 4015 | case EXTERNAL_DOUBLE_ELEMENTS: |
| 4016 | case FAST_ELEMENTS: |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4017 | case FAST_SMI_ONLY_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4018 | case FAST_DOUBLE_ELEMENTS: |
| 4019 | case DICTIONARY_ELEMENTS: |
| 4020 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4021 | UNREACHABLE(); |
| 4022 | break; |
| 4023 | } |
| 4024 | } |
| 4025 | } |
| 4026 | } |
| 4027 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4028 | // Slow case, key and receiver still in a0 and a1. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4029 | __ bind(&slow); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4030 | __ IncrementCounter( |
| 4031 | masm->isolate()->counters()->keyed_load_external_array_slow(), |
| 4032 | 1, a2, a3); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4033 | // Entry registers are intact. |
| 4034 | // ---------- S t a t e -------------- |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4035 | // -- ra : return address |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4036 | // -- a0 : key |
| 4037 | // -- a1 : receiver |
| 4038 | // ----------------------------------- |
| 4039 | Handle<Code> slow_ic = |
| 4040 | masm->isolate()->builtins()->KeyedStoreIC_Slow(); |
| 4041 | __ Jump(slow_ic, RelocInfo::CODE_TARGET); |
| 4042 | |
| 4043 | // Miss case, call the runtime. |
| 4044 | __ bind(&miss_force_generic); |
| 4045 | |
| 4046 | // ---------- S t a t e -------------- |
| 4047 | // -- ra : return address |
| 4048 | // -- a0 : key |
| 4049 | // -- a1 : receiver |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4050 | // ----------------------------------- |
| 4051 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4052 | Handle<Code> miss_ic = |
| 4053 | masm->isolate()->builtins()->KeyedStoreIC_MissForceGeneric(); |
| 4054 | __ Jump(miss_ic, RelocInfo::CODE_TARGET); |
| 4055 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4056 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4057 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4058 | void KeyedLoadStubCompiler::GenerateLoadFastElement(MacroAssembler* masm) { |
| 4059 | // ----------- S t a t e ------------- |
| 4060 | // -- ra : return address |
| 4061 | // -- a0 : key |
| 4062 | // -- a1 : receiver |
| 4063 | // ----------------------------------- |
| 4064 | Label miss_force_generic; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4065 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4066 | // This stub is meant to be tail-jumped to, the receiver must already |
| 4067 | // have been verified by the caller to not be a smi. |
| 4068 | |
| 4069 | // Check that the key is a smi. |
| 4070 | __ JumpIfNotSmi(a0, &miss_force_generic); |
| 4071 | |
| 4072 | // Get the elements array. |
| 4073 | __ lw(a2, FieldMemOperand(a1, JSObject::kElementsOffset)); |
| 4074 | __ AssertFastElements(a2); |
| 4075 | |
| 4076 | // Check that the key is within bounds. |
| 4077 | __ lw(a3, FieldMemOperand(a2, FixedArray::kLengthOffset)); |
| 4078 | __ Branch(&miss_force_generic, hs, a0, Operand(a3)); |
| 4079 | |
| 4080 | // Load the result and make sure it's not the hole. |
| 4081 | __ Addu(a3, a2, Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 4082 | STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize < kPointerSizeLog2); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4083 | __ sll(t0, a0, kPointerSizeLog2 - kSmiTagSize); |
| 4084 | __ Addu(t0, t0, a3); |
| 4085 | __ lw(t0, MemOperand(t0)); |
| 4086 | __ LoadRoot(t1, Heap::kTheHoleValueRootIndex); |
| 4087 | __ Branch(&miss_force_generic, eq, t0, Operand(t1)); |
| 4088 | __ mov(v0, t0); |
| 4089 | __ Ret(); |
| 4090 | |
| 4091 | __ bind(&miss_force_generic); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame^] | 4092 | Handle<Code> stub = |
| 4093 | masm->isolate()->builtins()->KeyedLoadIC_MissForceGeneric(); |
| 4094 | __ Jump(stub, RelocInfo::CODE_TARGET); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4095 | } |
| 4096 | |
| 4097 | |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 4098 | void KeyedLoadStubCompiler::GenerateLoadFastDoubleElement( |
| 4099 | MacroAssembler* masm) { |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 4100 | // ----------- S t a t e ------------- |
| 4101 | // -- ra : return address |
| 4102 | // -- a0 : key |
| 4103 | // -- a1 : receiver |
| 4104 | // ----------------------------------- |
| 4105 | Label miss_force_generic, slow_allocate_heapnumber; |
| 4106 | |
| 4107 | Register key_reg = a0; |
| 4108 | Register receiver_reg = a1; |
| 4109 | Register elements_reg = a2; |
| 4110 | Register heap_number_reg = a2; |
| 4111 | Register indexed_double_offset = a3; |
| 4112 | Register scratch = t0; |
| 4113 | Register scratch2 = t1; |
| 4114 | Register scratch3 = t2; |
| 4115 | Register heap_number_map = t3; |
| 4116 | |
| 4117 | // This stub is meant to be tail-jumped to, the receiver must already |
| 4118 | // have been verified by the caller to not be a smi. |
| 4119 | |
| 4120 | // Check that the key is a smi. |
| 4121 | __ JumpIfNotSmi(key_reg, &miss_force_generic); |
| 4122 | |
| 4123 | // Get the elements array. |
| 4124 | __ lw(elements_reg, |
| 4125 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 4126 | |
| 4127 | // Check that the key is within bounds. |
| 4128 | __ lw(scratch, FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); |
| 4129 | __ Branch(&miss_force_generic, hs, key_reg, Operand(scratch)); |
| 4130 | |
| 4131 | // Load the upper word of the double in the fixed array and test for NaN. |
| 4132 | __ sll(scratch2, key_reg, kDoubleSizeLog2 - kSmiTagSize); |
| 4133 | __ Addu(indexed_double_offset, elements_reg, Operand(scratch2)); |
| 4134 | uint32_t upper_32_offset = FixedArray::kHeaderSize + sizeof(kHoleNanLower32); |
| 4135 | __ lw(scratch, FieldMemOperand(indexed_double_offset, upper_32_offset)); |
| 4136 | __ Branch(&miss_force_generic, eq, scratch, Operand(kHoleNanUpper32)); |
| 4137 | |
| 4138 | // Non-NaN. Allocate a new heap number and copy the double value into it. |
| 4139 | __ LoadRoot(heap_number_map, Heap::kHeapNumberMapRootIndex); |
| 4140 | __ AllocateHeapNumber(heap_number_reg, scratch2, scratch3, |
| 4141 | heap_number_map, &slow_allocate_heapnumber); |
| 4142 | |
| 4143 | // Don't need to reload the upper 32 bits of the double, it's already in |
| 4144 | // scratch. |
| 4145 | __ sw(scratch, FieldMemOperand(heap_number_reg, |
| 4146 | HeapNumber::kExponentOffset)); |
| 4147 | __ lw(scratch, FieldMemOperand(indexed_double_offset, |
| 4148 | FixedArray::kHeaderSize)); |
| 4149 | __ sw(scratch, FieldMemOperand(heap_number_reg, |
| 4150 | HeapNumber::kMantissaOffset)); |
| 4151 | |
| 4152 | __ mov(v0, heap_number_reg); |
| 4153 | __ Ret(); |
| 4154 | |
| 4155 | __ bind(&slow_allocate_heapnumber); |
| 4156 | Handle<Code> slow_ic = |
| 4157 | masm->isolate()->builtins()->KeyedLoadIC_Slow(); |
| 4158 | __ Jump(slow_ic, RelocInfo::CODE_TARGET); |
| 4159 | |
| 4160 | __ bind(&miss_force_generic); |
| 4161 | Handle<Code> miss_ic = |
| 4162 | masm->isolate()->builtins()->KeyedLoadIC_MissForceGeneric(); |
| 4163 | __ Jump(miss_ic, RelocInfo::CODE_TARGET); |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 4164 | } |
| 4165 | |
| 4166 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4167 | void KeyedStoreStubCompiler::GenerateStoreFastElement( |
| 4168 | MacroAssembler* masm, |
| 4169 | bool is_js_array, |
| 4170 | ElementsKind elements_kind) { |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4171 | // ----------- S t a t e ------------- |
| 4172 | // -- a0 : value |
| 4173 | // -- a1 : key |
| 4174 | // -- a2 : receiver |
| 4175 | // -- ra : return address |
| 4176 | // -- a3 : scratch |
| 4177 | // -- a4 : scratch (elements) |
| 4178 | // ----------------------------------- |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4179 | Label miss_force_generic, transition_elements_kind; |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4180 | |
| 4181 | Register value_reg = a0; |
| 4182 | Register key_reg = a1; |
| 4183 | Register receiver_reg = a2; |
| 4184 | Register scratch = a3; |
| 4185 | Register elements_reg = t0; |
| 4186 | Register scratch2 = t1; |
| 4187 | Register scratch3 = t2; |
| 4188 | |
| 4189 | // This stub is meant to be tail-jumped to, the receiver must already |
| 4190 | // have been verified by the caller to not be a smi. |
| 4191 | |
| 4192 | // Check that the key is a smi. |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 4193 | __ JumpIfNotSmi(key_reg, &miss_force_generic); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4194 | |
| 4195 | // Get the elements array and make sure it is a fast element array, not 'cow'. |
| 4196 | __ lw(elements_reg, |
| 4197 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 4198 | __ CheckMap(elements_reg, |
| 4199 | scratch, |
| 4200 | Heap::kFixedArrayMapRootIndex, |
| 4201 | &miss_force_generic, |
| 4202 | DONT_DO_SMI_CHECK); |
| 4203 | |
| 4204 | // Check that the key is within bounds. |
| 4205 | if (is_js_array) { |
| 4206 | __ lw(scratch, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 4207 | } else { |
| 4208 | __ lw(scratch, FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); |
| 4209 | } |
| 4210 | // Compare smis. |
| 4211 | __ Branch(&miss_force_generic, hs, key_reg, Operand(scratch)); |
| 4212 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4213 | if (elements_kind == FAST_SMI_ONLY_ELEMENTS) { |
| 4214 | __ JumpIfNotSmi(value_reg, &transition_elements_kind); |
| 4215 | __ Addu(scratch, |
| 4216 | elements_reg, |
| 4217 | Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 4218 | STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize < kPointerSizeLog2); |
| 4219 | __ sll(scratch2, key_reg, kPointerSizeLog2 - kSmiTagSize); |
| 4220 | __ Addu(scratch, scratch, scratch2); |
| 4221 | __ sw(value_reg, MemOperand(scratch)); |
| 4222 | } else { |
| 4223 | ASSERT(elements_kind == FAST_ELEMENTS); |
| 4224 | __ Addu(scratch, |
| 4225 | elements_reg, |
| 4226 | Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 4227 | STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize < kPointerSizeLog2); |
| 4228 | __ sll(scratch2, key_reg, kPointerSizeLog2 - kSmiTagSize); |
| 4229 | __ Addu(scratch, scratch, scratch2); |
| 4230 | __ sw(value_reg, MemOperand(scratch)); |
| 4231 | __ mov(receiver_reg, value_reg); |
| 4232 | ASSERT(elements_kind == FAST_ELEMENTS); |
| 4233 | __ RecordWrite(elements_reg, // Object. |
| 4234 | scratch, // Address. |
| 4235 | receiver_reg, // Value. |
| 4236 | kRAHasNotBeenSaved, |
| 4237 | kDontSaveFPRegs); |
| 4238 | } |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4239 | // value_reg (a0) is preserved. |
| 4240 | // Done. |
| 4241 | __ Ret(); |
| 4242 | |
| 4243 | __ bind(&miss_force_generic); |
| 4244 | Handle<Code> ic = |
| 4245 | masm->isolate()->builtins()->KeyedStoreIC_MissForceGeneric(); |
| 4246 | __ Jump(ic, RelocInfo::CODE_TARGET); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4247 | |
| 4248 | __ bind(&transition_elements_kind); |
| 4249 | Handle<Code> ic_miss = masm->isolate()->builtins()->KeyedStoreIC_Miss(); |
| 4250 | __ Jump(ic_miss, RelocInfo::CODE_TARGET); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 4251 | } |
| 4252 | |
| 4253 | |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 4254 | void KeyedStoreStubCompiler::GenerateStoreFastDoubleElement( |
| 4255 | MacroAssembler* masm, |
| 4256 | bool is_js_array) { |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 4257 | // ----------- S t a t e ------------- |
| 4258 | // -- a0 : value |
| 4259 | // -- a1 : key |
| 4260 | // -- a2 : receiver |
| 4261 | // -- ra : return address |
| 4262 | // -- a3 : scratch |
| 4263 | // -- t0 : scratch (elements_reg) |
| 4264 | // -- t1 : scratch (mantissa_reg) |
| 4265 | // -- t2 : scratch (exponent_reg) |
| 4266 | // -- t3 : scratch4 |
| 4267 | // ----------------------------------- |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4268 | Label miss_force_generic, transition_elements_kind; |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 4269 | |
| 4270 | Register value_reg = a0; |
| 4271 | Register key_reg = a1; |
| 4272 | Register receiver_reg = a2; |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4273 | Register elements_reg = a3; |
| 4274 | Register scratch1 = t0; |
| 4275 | Register scratch2 = t1; |
| 4276 | Register scratch3 = t2; |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 4277 | Register scratch4 = t3; |
| 4278 | |
| 4279 | // This stub is meant to be tail-jumped to, the receiver must already |
| 4280 | // have been verified by the caller to not be a smi. |
| 4281 | __ JumpIfNotSmi(key_reg, &miss_force_generic); |
| 4282 | |
| 4283 | __ lw(elements_reg, |
| 4284 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 4285 | |
| 4286 | // Check that the key is within bounds. |
| 4287 | if (is_js_array) { |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4288 | __ lw(scratch1, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 4289 | } else { |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4290 | __ lw(scratch1, |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 4291 | FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); |
| 4292 | } |
| 4293 | // Compare smis, unsigned compare catches both negative and out-of-bound |
| 4294 | // indexes. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4295 | __ Branch(&miss_force_generic, hs, key_reg, Operand(scratch1)); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 4296 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4297 | __ StoreNumberToDoubleElements(value_reg, |
| 4298 | key_reg, |
| 4299 | receiver_reg, |
| 4300 | elements_reg, |
| 4301 | scratch1, |
| 4302 | scratch2, |
| 4303 | scratch3, |
| 4304 | scratch4, |
| 4305 | &transition_elements_kind); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 4306 | |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 4307 | __ Ret(USE_DELAY_SLOT); |
| 4308 | __ mov(v0, value_reg); // In delay slot. |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 4309 | |
| 4310 | // Handle store cache miss, replacing the ic with the generic stub. |
| 4311 | __ bind(&miss_force_generic); |
| 4312 | Handle<Code> ic = |
| 4313 | masm->isolate()->builtins()->KeyedStoreIC_MissForceGeneric(); |
| 4314 | __ Jump(ic, RelocInfo::CODE_TARGET); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4315 | |
| 4316 | __ bind(&transition_elements_kind); |
| 4317 | Handle<Code> ic_miss = masm->isolate()->builtins()->KeyedStoreIC_Miss(); |
| 4318 | __ Jump(ic_miss, RelocInfo::CODE_TARGET); |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 4319 | } |
| 4320 | |
| 4321 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 4322 | #undef __ |
| 4323 | |
| 4324 | } } // namespace v8::internal |
| 4325 | |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 4326 | #endif // V8_TARGET_ARCH_MIPS |