kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 1 | // Copyright 2006-2009 the V8 project authors. All rights reserved. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | #include "v8.h" |
| 29 | |
| 30 | #include "ic-inl.h" |
| 31 | #include "codegen-inl.h" |
| 32 | #include "stub-cache.h" |
| 33 | |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 34 | namespace v8 { |
| 35 | namespace internal { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 36 | |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 37 | #define __ ACCESS_MASM(masm) |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 38 | |
| 39 | |
| 40 | static void ProbeTable(MacroAssembler* masm, |
| 41 | Code::Flags flags, |
| 42 | StubCache::Table table, |
| 43 | Register name, |
| 44 | Register offset) { |
| 45 | ExternalReference key_offset(SCTableReference::keyReference(table)); |
| 46 | ExternalReference value_offset(SCTableReference::valueReference(table)); |
| 47 | |
| 48 | Label miss; |
| 49 | |
| 50 | // Save the offset on the stack. |
| 51 | __ push(offset); |
| 52 | |
| 53 | // Check that the key in the entry matches the name. |
| 54 | __ mov(ip, Operand(key_offset)); |
| 55 | __ ldr(ip, MemOperand(ip, offset, LSL, 1)); |
fschneider@chromium.org | 013f3e1 | 2010-04-26 13:27:52 +0000 | [diff] [blame^] | 56 | __ cmp(name, ip); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 57 | __ b(ne, &miss); |
| 58 | |
| 59 | // Get the code entry from the cache. |
| 60 | __ mov(ip, Operand(value_offset)); |
| 61 | __ ldr(offset, MemOperand(ip, offset, LSL, 1)); |
| 62 | |
| 63 | // Check that the flags match what we're looking for. |
| 64 | __ ldr(offset, FieldMemOperand(offset, Code::kFlagsOffset)); |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 65 | __ and_(offset, offset, Operand(~Code::kFlagsNotUsedInLookup)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 66 | __ cmp(offset, Operand(flags)); |
| 67 | __ b(ne, &miss); |
| 68 | |
| 69 | // Restore offset and re-load code entry from cache. |
| 70 | __ pop(offset); |
| 71 | __ mov(ip, Operand(value_offset)); |
| 72 | __ ldr(offset, MemOperand(ip, offset, LSL, 1)); |
| 73 | |
| 74 | // Jump to the first instruction in the code stub. |
| 75 | __ add(offset, offset, Operand(Code::kHeaderSize - kHeapObjectTag)); |
| 76 | __ Jump(offset); |
| 77 | |
| 78 | // Miss: Restore offset and fall through. |
| 79 | __ bind(&miss); |
| 80 | __ pop(offset); |
| 81 | } |
| 82 | |
| 83 | |
| 84 | void StubCache::GenerateProbe(MacroAssembler* masm, |
| 85 | Code::Flags flags, |
| 86 | Register receiver, |
| 87 | Register name, |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 88 | Register scratch, |
| 89 | Register extra) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 90 | Label miss; |
| 91 | |
| 92 | // Make sure that code is valid. The shifting code relies on the |
| 93 | // entry size being 8. |
| 94 | ASSERT(sizeof(Entry) == 8); |
| 95 | |
| 96 | // Make sure the flags does not name a specific type. |
| 97 | ASSERT(Code::ExtractTypeFromFlags(flags) == 0); |
| 98 | |
| 99 | // Make sure that there are no register conflicts. |
| 100 | ASSERT(!scratch.is(receiver)); |
| 101 | ASSERT(!scratch.is(name)); |
| 102 | |
| 103 | // Check that the receiver isn't a smi. |
| 104 | __ tst(receiver, Operand(kSmiTagMask)); |
| 105 | __ b(eq, &miss); |
| 106 | |
| 107 | // Get the map of the receiver and compute the hash. |
sgjesse@chromium.org | ac6aa17 | 2009-12-04 12:29:05 +0000 | [diff] [blame] | 108 | __ ldr(scratch, FieldMemOperand(name, String::kHashFieldOffset)); |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 109 | __ ldr(ip, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 110 | __ add(scratch, scratch, Operand(ip)); |
| 111 | __ eor(scratch, scratch, Operand(flags)); |
| 112 | __ and_(scratch, |
| 113 | scratch, |
| 114 | Operand((kPrimaryTableSize - 1) << kHeapObjectTagSize)); |
| 115 | |
| 116 | // Probe the primary table. |
| 117 | ProbeTable(masm, flags, kPrimary, name, scratch); |
| 118 | |
| 119 | // Primary miss: Compute hash for secondary probe. |
| 120 | __ sub(scratch, scratch, Operand(name)); |
| 121 | __ add(scratch, scratch, Operand(flags)); |
| 122 | __ and_(scratch, |
| 123 | scratch, |
| 124 | Operand((kSecondaryTableSize - 1) << kHeapObjectTagSize)); |
| 125 | |
| 126 | // Probe the secondary table. |
| 127 | ProbeTable(masm, flags, kSecondary, name, scratch); |
| 128 | |
| 129 | // Cache miss: Fall-through and let caller handle the miss by |
| 130 | // entering the runtime system. |
| 131 | __ bind(&miss); |
| 132 | } |
| 133 | |
| 134 | |
| 135 | void StubCompiler::GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm, |
| 136 | int index, |
| 137 | Register prototype) { |
| 138 | // Load the global or builtins object from the current context. |
| 139 | __ ldr(prototype, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX))); |
| 140 | // Load the global context from the global or builtins object. |
| 141 | __ ldr(prototype, |
| 142 | FieldMemOperand(prototype, GlobalObject::kGlobalContextOffset)); |
| 143 | // Load the function from the global context. |
| 144 | __ ldr(prototype, MemOperand(prototype, Context::SlotOffset(index))); |
| 145 | // Load the initial map. The global functions all have initial maps. |
| 146 | __ ldr(prototype, |
| 147 | FieldMemOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset)); |
| 148 | // Load the prototype from the initial map. |
| 149 | __ ldr(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); |
| 150 | } |
| 151 | |
| 152 | |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 153 | // Load a fast property out of a holder object (src). In-object properties |
| 154 | // are loaded directly otherwise the property is loaded from the properties |
| 155 | // fixed array. |
| 156 | void StubCompiler::GenerateFastPropertyLoad(MacroAssembler* masm, |
| 157 | Register dst, Register src, |
| 158 | JSObject* holder, int index) { |
| 159 | // Adjust for the number of properties stored in the holder. |
| 160 | index -= holder->map()->inobject_properties(); |
| 161 | if (index < 0) { |
| 162 | // Get the property straight out of the holder. |
| 163 | int offset = holder->map()->instance_size() + (index * kPointerSize); |
| 164 | __ ldr(dst, FieldMemOperand(src, offset)); |
| 165 | } else { |
| 166 | // Calculate the offset into the properties array. |
kasperl@chromium.org | e959c18 | 2009-07-27 08:59:04 +0000 | [diff] [blame] | 167 | int offset = index * kPointerSize + FixedArray::kHeaderSize; |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 168 | __ ldr(dst, FieldMemOperand(src, JSObject::kPropertiesOffset)); |
| 169 | __ ldr(dst, FieldMemOperand(dst, offset)); |
| 170 | } |
| 171 | } |
| 172 | |
| 173 | |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 174 | void StubCompiler::GenerateLoadArrayLength(MacroAssembler* masm, |
| 175 | Register receiver, |
| 176 | Register scratch, |
| 177 | Label* miss_label) { |
| 178 | // Check that the receiver isn't a smi. |
| 179 | __ tst(receiver, Operand(kSmiTagMask)); |
| 180 | __ b(eq, miss_label); |
| 181 | |
| 182 | // Check that the object is a JS array. |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 183 | __ CompareObjectType(receiver, scratch, scratch, JS_ARRAY_TYPE); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 184 | __ b(ne, miss_label); |
| 185 | |
| 186 | // Load length directly from the JS array. |
| 187 | __ ldr(r0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 188 | __ Ret(); |
| 189 | } |
| 190 | |
| 191 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 192 | // Generate code to check if an object is a string. If the object is a |
| 193 | // heap object, its map's instance type is left in the scratch1 register. |
| 194 | // If this is not needed, scratch1 and scratch2 may be the same register. |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 195 | static void GenerateStringCheck(MacroAssembler* masm, |
| 196 | Register receiver, |
| 197 | Register scratch1, |
| 198 | Register scratch2, |
| 199 | Label* smi, |
| 200 | Label* non_string_object) { |
| 201 | // Check that the receiver isn't a smi. |
| 202 | __ tst(receiver, Operand(kSmiTagMask)); |
| 203 | __ b(eq, smi); |
| 204 | |
| 205 | // Check that the object is a string. |
| 206 | __ ldr(scratch1, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 207 | __ ldrb(scratch1, FieldMemOperand(scratch1, Map::kInstanceTypeOffset)); |
| 208 | __ and_(scratch2, scratch1, Operand(kIsNotStringMask)); |
| 209 | // The cast is to resolve the overload for the argument of 0x0. |
| 210 | __ cmp(scratch2, Operand(static_cast<int32_t>(kStringTag))); |
| 211 | __ b(ne, non_string_object); |
| 212 | } |
| 213 | |
| 214 | |
ager@chromium.org | 3291210 | 2009-01-16 10:38:43 +0000 | [diff] [blame] | 215 | // Generate code to load the length from a string object and return the length. |
| 216 | // If the receiver object is not a string or a wrapped string object the |
| 217 | // execution continues at the miss label. The register containing the |
| 218 | // receiver is potentially clobbered. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 219 | void StubCompiler::GenerateLoadStringLength(MacroAssembler* masm, |
| 220 | Register receiver, |
| 221 | Register scratch1, |
| 222 | Register scratch2, |
| 223 | Label* miss) { |
| 224 | Label check_wrapper; |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 225 | |
| 226 | // Check if the object is a string leaving the instance type in the |
| 227 | // scratch1 register. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 228 | GenerateStringCheck(masm, receiver, scratch1, scratch2, miss, &check_wrapper); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 229 | |
| 230 | // Load length directly from the string. |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 231 | __ ldr(r0, FieldMemOperand(receiver, String::kLengthOffset)); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 232 | __ mov(r0, Operand(r0, LSL, kSmiTagSize)); |
| 233 | __ Ret(); |
| 234 | |
| 235 | // Check if the object is a JSValue wrapper. |
| 236 | __ bind(&check_wrapper); |
| 237 | __ cmp(scratch1, Operand(JS_VALUE_TYPE)); |
| 238 | __ b(ne, miss); |
| 239 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 240 | // Unwrap the value and check if the wrapped value is a string. |
| 241 | __ ldr(scratch1, FieldMemOperand(receiver, JSValue::kValueOffset)); |
| 242 | GenerateStringCheck(masm, scratch1, scratch2, scratch2, miss, miss); |
| 243 | __ ldr(r0, FieldMemOperand(scratch1, String::kLengthOffset)); |
| 244 | __ mov(r0, Operand(r0, LSL, kSmiTagSize)); |
| 245 | __ Ret(); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 246 | } |
| 247 | |
| 248 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 249 | void StubCompiler::GenerateLoadFunctionPrototype(MacroAssembler* masm, |
| 250 | Register receiver, |
| 251 | Register scratch1, |
| 252 | Register scratch2, |
| 253 | Label* miss_label) { |
| 254 | __ TryGetFunctionPrototype(receiver, scratch1, scratch2, miss_label); |
| 255 | __ mov(r0, scratch1); |
| 256 | __ Ret(); |
| 257 | } |
| 258 | |
| 259 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 260 | // Generate StoreField code, value is passed in r0 register. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 261 | // When leaving generated code after success, the receiver_reg and name_reg |
| 262 | // may be clobbered. Upon branch to miss_label, the receiver and name |
| 263 | // registers have their original values. |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 264 | void StubCompiler::GenerateStoreField(MacroAssembler* masm, |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 265 | JSObject* object, |
| 266 | int index, |
| 267 | Map* transition, |
| 268 | Register receiver_reg, |
| 269 | Register name_reg, |
| 270 | Register scratch, |
| 271 | Label* miss_label) { |
| 272 | // r0 : value |
| 273 | Label exit; |
| 274 | |
| 275 | // Check that the receiver isn't a smi. |
| 276 | __ tst(receiver_reg, Operand(kSmiTagMask)); |
| 277 | __ b(eq, miss_label); |
| 278 | |
| 279 | // Check that the map of the receiver hasn't changed. |
| 280 | __ ldr(scratch, FieldMemOperand(receiver_reg, HeapObject::kMapOffset)); |
| 281 | __ cmp(scratch, Operand(Handle<Map>(object->map()))); |
| 282 | __ b(ne, miss_label); |
| 283 | |
| 284 | // Perform global security token check if needed. |
| 285 | if (object->IsJSGlobalProxy()) { |
| 286 | __ CheckAccessGlobalProxy(receiver_reg, scratch, miss_label); |
| 287 | } |
| 288 | |
| 289 | // Stub never generated for non-global objects that require access |
| 290 | // checks. |
| 291 | ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded()); |
| 292 | |
| 293 | // Perform map transition for the receiver if necessary. |
| 294 | if ((transition != NULL) && (object->map()->unused_property_fields() == 0)) { |
| 295 | // The properties must be extended before we can store the value. |
ager@chromium.org | 3291210 | 2009-01-16 10:38:43 +0000 | [diff] [blame] | 296 | // We jump to a runtime call that extends the properties array. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 297 | __ push(receiver_reg); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 298 | __ mov(r2, Operand(Handle<Map>(transition))); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 299 | __ stm(db_w, sp, r2.bit() | r0.bit()); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 300 | __ TailCallExternalReference( |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 301 | ExternalReference(IC_Utility(IC::kSharedStoreIC_ExtendStorage)), |
| 302 | 3, 1); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 303 | return; |
| 304 | } |
| 305 | |
| 306 | if (transition != NULL) { |
| 307 | // Update the map of the object; no write barrier updating is |
| 308 | // needed because the map is never in new space. |
| 309 | __ mov(ip, Operand(Handle<Map>(transition))); |
| 310 | __ str(ip, FieldMemOperand(receiver_reg, HeapObject::kMapOffset)); |
| 311 | } |
| 312 | |
| 313 | // Adjust for the number of properties stored in the object. Even in the |
| 314 | // face of a transition we can use the old map here because the size of the |
| 315 | // object and the number of in-object properties is not going to change. |
| 316 | index -= object->map()->inobject_properties(); |
| 317 | |
| 318 | if (index < 0) { |
| 319 | // Set the property straight into the object. |
| 320 | int offset = object->map()->instance_size() + (index * kPointerSize); |
| 321 | __ str(r0, FieldMemOperand(receiver_reg, offset)); |
| 322 | |
| 323 | // Skip updating write barrier if storing a smi. |
| 324 | __ tst(r0, Operand(kSmiTagMask)); |
| 325 | __ b(eq, &exit); |
| 326 | |
| 327 | // Update the write barrier for the array address. |
| 328 | // Pass the value being stored in the now unused name_reg. |
| 329 | __ mov(name_reg, Operand(offset)); |
| 330 | __ RecordWrite(receiver_reg, name_reg, scratch); |
| 331 | } else { |
| 332 | // Write to the properties array. |
kasperl@chromium.org | e959c18 | 2009-07-27 08:59:04 +0000 | [diff] [blame] | 333 | int offset = index * kPointerSize + FixedArray::kHeaderSize; |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 334 | // Get the properties array |
| 335 | __ ldr(scratch, FieldMemOperand(receiver_reg, JSObject::kPropertiesOffset)); |
| 336 | __ str(r0, FieldMemOperand(scratch, offset)); |
| 337 | |
| 338 | // Skip updating write barrier if storing a smi. |
| 339 | __ tst(r0, Operand(kSmiTagMask)); |
| 340 | __ b(eq, &exit); |
| 341 | |
| 342 | // Update the write barrier for the array address. |
| 343 | // Ok to clobber receiver_reg and name_reg, since we return. |
| 344 | __ mov(name_reg, Operand(offset)); |
| 345 | __ RecordWrite(scratch, name_reg, receiver_reg); |
| 346 | } |
| 347 | |
| 348 | // Return the value (register r0). |
| 349 | __ bind(&exit); |
| 350 | __ Ret(); |
| 351 | } |
| 352 | |
| 353 | |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 354 | void StubCompiler::GenerateLoadMiss(MacroAssembler* masm, Code::Kind kind) { |
| 355 | ASSERT(kind == Code::LOAD_IC || kind == Code::KEYED_LOAD_IC); |
| 356 | Code* code = NULL; |
| 357 | if (kind == Code::LOAD_IC) { |
| 358 | code = Builtins::builtin(Builtins::LoadIC_Miss); |
| 359 | } else { |
| 360 | code = Builtins::builtin(Builtins::KeyedLoadIC_Miss); |
| 361 | } |
| 362 | |
| 363 | Handle<Code> ic(code); |
| 364 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 365 | } |
| 366 | |
| 367 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 368 | static void GenerateCallFunction(MacroAssembler* masm, |
| 369 | Object* object, |
| 370 | const ParameterCount& arguments, |
| 371 | Label* miss) { |
| 372 | // ----------- S t a t e ------------- |
| 373 | // -- r0: receiver |
| 374 | // -- r1: function to call |
| 375 | // ----------------------------------- |
| 376 | |
| 377 | // Check that the function really is a function. |
| 378 | __ BranchOnSmi(r1, miss); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 379 | __ CompareObjectType(r1, r3, r3, JS_FUNCTION_TYPE); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 380 | __ b(ne, miss); |
| 381 | |
| 382 | // Patch the receiver on the stack with the global proxy if |
| 383 | // necessary. |
| 384 | if (object->IsGlobalObject()) { |
| 385 | __ ldr(r3, FieldMemOperand(r0, GlobalObject::kGlobalReceiverOffset)); |
| 386 | __ str(r3, MemOperand(sp, arguments.immediate() * kPointerSize)); |
| 387 | } |
| 388 | |
| 389 | // Invoke the function. |
| 390 | __ InvokeFunction(r1, arguments, JUMP_FUNCTION); |
| 391 | } |
| 392 | |
| 393 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 394 | static void PushInterceptorArguments(MacroAssembler* masm, |
| 395 | Register receiver, |
| 396 | Register holder, |
| 397 | Register name, |
| 398 | JSObject* holder_obj) { |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 399 | __ push(name); |
| 400 | InterceptorInfo* interceptor = holder_obj->GetNamedInterceptor(); |
| 401 | ASSERT(!Heap::InNewSpace(interceptor)); |
ager@chromium.org | b26c50a | 2010-03-26 09:27:16 +0000 | [diff] [blame] | 402 | Register scratch = name; |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 403 | __ mov(scratch, Operand(Handle<Object>(interceptor))); |
| 404 | __ push(scratch); |
ager@chromium.org | b26c50a | 2010-03-26 09:27:16 +0000 | [diff] [blame] | 405 | __ push(receiver); |
| 406 | __ push(holder); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 407 | __ ldr(scratch, FieldMemOperand(scratch, InterceptorInfo::kDataOffset)); |
| 408 | __ push(scratch); |
| 409 | } |
| 410 | |
| 411 | |
| 412 | static void CompileCallLoadPropertyWithInterceptor(MacroAssembler* masm, |
| 413 | Register receiver, |
| 414 | Register holder, |
| 415 | Register name, |
| 416 | JSObject* holder_obj) { |
| 417 | PushInterceptorArguments(masm, receiver, holder, name, holder_obj); |
| 418 | |
| 419 | ExternalReference ref = |
| 420 | ExternalReference(IC_Utility(IC::kLoadPropertyWithInterceptorOnly)); |
| 421 | __ mov(r0, Operand(5)); |
| 422 | __ mov(r1, Operand(ref)); |
| 423 | |
| 424 | CEntryStub stub(1); |
| 425 | __ CallStub(&stub); |
| 426 | } |
| 427 | |
| 428 | |
| 429 | class LoadInterceptorCompiler BASE_EMBEDDED { |
| 430 | public: |
| 431 | explicit LoadInterceptorCompiler(Register name) : name_(name) {} |
| 432 | |
| 433 | void CompileCacheable(MacroAssembler* masm, |
| 434 | StubCompiler* stub_compiler, |
| 435 | Register receiver, |
| 436 | Register holder, |
| 437 | Register scratch1, |
| 438 | Register scratch2, |
| 439 | JSObject* holder_obj, |
| 440 | LookupResult* lookup, |
| 441 | String* name, |
| 442 | Label* miss_label) { |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 443 | AccessorInfo* callback = NULL; |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 444 | bool optimize = false; |
| 445 | // So far the most popular follow ups for interceptor loads are FIELD |
| 446 | // and CALLBACKS, so inline only them, other cases may be added |
| 447 | // later. |
| 448 | if (lookup->type() == FIELD) { |
| 449 | optimize = true; |
| 450 | } else if (lookup->type() == CALLBACKS) { |
| 451 | Object* callback_object = lookup->GetCallbackObject(); |
| 452 | if (callback_object->IsAccessorInfo()) { |
| 453 | callback = AccessorInfo::cast(callback_object); |
| 454 | optimize = callback->getter() != NULL; |
| 455 | } |
| 456 | } |
| 457 | |
| 458 | if (!optimize) { |
| 459 | CompileRegular(masm, receiver, holder, scratch2, holder_obj, miss_label); |
| 460 | return; |
| 461 | } |
| 462 | |
| 463 | // Note: starting a frame here makes GC aware of pointers pushed below. |
| 464 | __ EnterInternalFrame(); |
| 465 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 466 | __ push(receiver); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 467 | __ push(holder); |
| 468 | __ push(name_); |
| 469 | |
| 470 | CompileCallLoadPropertyWithInterceptor(masm, |
| 471 | receiver, |
| 472 | holder, |
| 473 | name_, |
| 474 | holder_obj); |
| 475 | |
| 476 | Label interceptor_failed; |
| 477 | // Compare with no_interceptor_result_sentinel. |
| 478 | __ LoadRoot(scratch1, Heap::kNoInterceptorResultSentinelRootIndex); |
| 479 | __ cmp(r0, scratch1); |
| 480 | __ b(eq, &interceptor_failed); |
| 481 | __ LeaveInternalFrame(); |
| 482 | __ Ret(); |
| 483 | |
| 484 | __ bind(&interceptor_failed); |
| 485 | __ pop(name_); |
| 486 | __ pop(holder); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 487 | __ pop(receiver); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 488 | |
| 489 | __ LeaveInternalFrame(); |
| 490 | |
| 491 | if (lookup->type() == FIELD) { |
| 492 | holder = stub_compiler->CheckPrototypes(holder_obj, |
| 493 | holder, |
| 494 | lookup->holder(), |
| 495 | scratch1, |
| 496 | scratch2, |
| 497 | name, |
| 498 | miss_label); |
| 499 | stub_compiler->GenerateFastPropertyLoad(masm, |
| 500 | r0, |
| 501 | holder, |
| 502 | lookup->holder(), |
| 503 | lookup->GetFieldIndex()); |
| 504 | __ Ret(); |
| 505 | } else { |
| 506 | ASSERT(lookup->type() == CALLBACKS); |
| 507 | ASSERT(lookup->GetCallbackObject()->IsAccessorInfo()); |
| 508 | ASSERT(callback != NULL); |
| 509 | ASSERT(callback->getter() != NULL); |
| 510 | |
| 511 | Label cleanup; |
| 512 | __ pop(scratch2); |
| 513 | __ push(receiver); |
| 514 | __ push(scratch2); |
| 515 | |
| 516 | holder = stub_compiler->CheckPrototypes(holder_obj, holder, |
| 517 | lookup->holder(), scratch1, |
| 518 | scratch2, |
| 519 | name, |
| 520 | &cleanup); |
| 521 | |
| 522 | __ push(holder); |
| 523 | __ Move(holder, Handle<AccessorInfo>(callback)); |
| 524 | __ push(holder); |
| 525 | __ ldr(scratch1, FieldMemOperand(holder, AccessorInfo::kDataOffset)); |
| 526 | __ push(scratch1); |
| 527 | __ push(name_); |
| 528 | |
| 529 | ExternalReference ref = |
| 530 | ExternalReference(IC_Utility(IC::kLoadCallbackProperty)); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 531 | __ TailCallExternalReference(ref, 5, 1); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 532 | |
| 533 | __ bind(&cleanup); |
| 534 | __ pop(scratch1); |
| 535 | __ pop(scratch2); |
| 536 | __ push(scratch1); |
| 537 | } |
| 538 | } |
| 539 | |
| 540 | |
| 541 | void CompileRegular(MacroAssembler* masm, |
| 542 | Register receiver, |
| 543 | Register holder, |
| 544 | Register scratch, |
| 545 | JSObject* holder_obj, |
| 546 | Label* miss_label) { |
| 547 | PushInterceptorArguments(masm, receiver, holder, name_, holder_obj); |
| 548 | |
| 549 | ExternalReference ref = ExternalReference( |
| 550 | IC_Utility(IC::kLoadPropertyWithInterceptorForLoad)); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 551 | __ TailCallExternalReference(ref, 5, 1); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 552 | } |
| 553 | |
| 554 | private: |
| 555 | Register name_; |
| 556 | }; |
| 557 | |
| 558 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 559 | static void CompileLoadInterceptor(LoadInterceptorCompiler* compiler, |
| 560 | StubCompiler* stub_compiler, |
| 561 | MacroAssembler* masm, |
| 562 | JSObject* object, |
| 563 | JSObject* holder, |
| 564 | String* name, |
| 565 | LookupResult* lookup, |
| 566 | Register receiver, |
| 567 | Register scratch1, |
| 568 | Register scratch2, |
| 569 | Label* miss) { |
| 570 | ASSERT(holder->HasNamedInterceptor()); |
| 571 | ASSERT(!holder->GetNamedInterceptor()->getter()->IsUndefined()); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 572 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 573 | // Check that the receiver isn't a smi. |
| 574 | __ BranchOnSmi(receiver, miss); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 575 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 576 | // Check that the maps haven't changed. |
| 577 | Register reg = |
| 578 | stub_compiler->CheckPrototypes(object, receiver, holder, |
| 579 | scratch1, scratch2, name, miss); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 580 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 581 | if (lookup->IsProperty() && lookup->IsCacheable()) { |
| 582 | compiler->CompileCacheable(masm, |
| 583 | stub_compiler, |
| 584 | receiver, |
| 585 | reg, |
| 586 | scratch1, |
| 587 | scratch2, |
| 588 | holder, |
| 589 | lookup, |
| 590 | name, |
| 591 | miss); |
| 592 | } else { |
| 593 | compiler->CompileRegular(masm, |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 594 | receiver, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 595 | reg, |
| 596 | scratch2, |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 597 | holder, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 598 | miss); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 599 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 600 | } |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 601 | |
| 602 | |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 603 | // Generate code to check that a global property cell is empty. Create |
| 604 | // the property cell at compilation time if no cell exists for the |
| 605 | // property. |
| 606 | static Object* GenerateCheckPropertyCell(MacroAssembler* masm, |
| 607 | GlobalObject* global, |
| 608 | String* name, |
| 609 | Register scratch, |
| 610 | Label* miss) { |
| 611 | Object* probe = global->EnsurePropertyCell(name); |
| 612 | if (probe->IsFailure()) return probe; |
| 613 | JSGlobalPropertyCell* cell = JSGlobalPropertyCell::cast(probe); |
| 614 | ASSERT(cell->value()->IsTheHole()); |
| 615 | __ mov(scratch, Operand(Handle<Object>(cell))); |
| 616 | __ ldr(scratch, |
| 617 | FieldMemOperand(scratch, JSGlobalPropertyCell::kValueOffset)); |
| 618 | __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); |
| 619 | __ cmp(scratch, ip); |
| 620 | __ b(ne, miss); |
| 621 | return cell; |
| 622 | } |
| 623 | |
| 624 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 625 | #undef __ |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 626 | #define __ ACCESS_MASM(masm()) |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 627 | |
| 628 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 629 | Register StubCompiler::CheckPrototypes(JSObject* object, |
| 630 | Register object_reg, |
| 631 | JSObject* holder, |
| 632 | Register holder_reg, |
| 633 | Register scratch, |
| 634 | String* name, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 635 | int save_at_depth, |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 636 | Label* miss) { |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 637 | // TODO(602): support object saving. |
| 638 | ASSERT(save_at_depth == kInvalidProtoDepth); |
| 639 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 640 | // Check that the maps haven't changed. |
| 641 | Register result = |
| 642 | masm()->CheckMaps(object, object_reg, holder, holder_reg, scratch, miss); |
| 643 | |
| 644 | // If we've skipped any global objects, it's not enough to verify |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 645 | // that their maps haven't changed. We also need to check that the |
| 646 | // property cell for the property is still empty. |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 647 | while (object != holder) { |
| 648 | if (object->IsGlobalObject()) { |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 649 | Object* cell = GenerateCheckPropertyCell(masm(), |
| 650 | GlobalObject::cast(object), |
| 651 | name, |
| 652 | scratch, |
| 653 | miss); |
| 654 | if (cell->IsFailure()) { |
| 655 | set_failure(Failure::cast(cell)); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 656 | return result; |
| 657 | } |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 658 | } |
| 659 | object = JSObject::cast(object->GetPrototype()); |
| 660 | } |
| 661 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 662 | // Return the register containing the holder. |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 663 | return result; |
| 664 | } |
| 665 | |
| 666 | |
| 667 | void StubCompiler::GenerateLoadField(JSObject* object, |
| 668 | JSObject* holder, |
| 669 | Register receiver, |
| 670 | Register scratch1, |
| 671 | Register scratch2, |
| 672 | int index, |
| 673 | String* name, |
| 674 | Label* miss) { |
| 675 | // Check that the receiver isn't a smi. |
| 676 | __ tst(receiver, Operand(kSmiTagMask)); |
| 677 | __ b(eq, miss); |
| 678 | |
| 679 | // Check that the maps haven't changed. |
| 680 | Register reg = |
| 681 | CheckPrototypes(object, receiver, holder, scratch1, scratch2, name, miss); |
| 682 | GenerateFastPropertyLoad(masm(), r0, reg, holder, index); |
| 683 | __ Ret(); |
| 684 | } |
| 685 | |
| 686 | |
| 687 | void StubCompiler::GenerateLoadConstant(JSObject* object, |
| 688 | JSObject* holder, |
| 689 | Register receiver, |
| 690 | Register scratch1, |
| 691 | Register scratch2, |
| 692 | Object* value, |
| 693 | String* name, |
| 694 | Label* miss) { |
| 695 | // Check that the receiver isn't a smi. |
| 696 | __ tst(receiver, Operand(kSmiTagMask)); |
| 697 | __ b(eq, miss); |
| 698 | |
| 699 | // Check that the maps haven't changed. |
| 700 | Register reg = |
| 701 | CheckPrototypes(object, receiver, holder, scratch1, scratch2, name, miss); |
| 702 | |
| 703 | // Return the constant value. |
| 704 | __ mov(r0, Operand(Handle<Object>(value))); |
| 705 | __ Ret(); |
| 706 | } |
| 707 | |
| 708 | |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 709 | bool StubCompiler::GenerateLoadCallback(JSObject* object, |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 710 | JSObject* holder, |
| 711 | Register receiver, |
| 712 | Register name_reg, |
| 713 | Register scratch1, |
| 714 | Register scratch2, |
| 715 | AccessorInfo* callback, |
| 716 | String* name, |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 717 | Label* miss, |
| 718 | Failure** failure) { |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 719 | // Check that the receiver isn't a smi. |
| 720 | __ tst(receiver, Operand(kSmiTagMask)); |
| 721 | __ b(eq, miss); |
| 722 | |
| 723 | // Check that the maps haven't changed. |
| 724 | Register reg = |
| 725 | CheckPrototypes(object, receiver, holder, scratch1, scratch2, name, miss); |
| 726 | |
| 727 | // Push the arguments on the JS stack of the caller. |
| 728 | __ push(receiver); // receiver |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 729 | __ push(reg); // holder |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 730 | __ mov(ip, Operand(Handle<AccessorInfo>(callback))); // callback data |
| 731 | __ push(ip); |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 732 | __ ldr(reg, FieldMemOperand(ip, AccessorInfo::kDataOffset)); |
| 733 | __ push(reg); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 734 | __ push(name_reg); // name |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 735 | |
| 736 | // Do tail-call to the runtime system. |
| 737 | ExternalReference load_callback_property = |
| 738 | ExternalReference(IC_Utility(IC::kLoadCallbackProperty)); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 739 | __ TailCallExternalReference(load_callback_property, 5, 1); |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 740 | |
| 741 | return true; |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 742 | } |
| 743 | |
| 744 | |
| 745 | void StubCompiler::GenerateLoadInterceptor(JSObject* object, |
| 746 | JSObject* holder, |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 747 | LookupResult* lookup, |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 748 | Register receiver, |
| 749 | Register name_reg, |
| 750 | Register scratch1, |
| 751 | Register scratch2, |
| 752 | String* name, |
| 753 | Label* miss) { |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 754 | LoadInterceptorCompiler compiler(name_reg); |
| 755 | CompileLoadInterceptor(&compiler, |
| 756 | this, |
| 757 | masm(), |
| 758 | object, |
| 759 | holder, |
| 760 | name, |
| 761 | lookup, |
| 762 | receiver, |
| 763 | scratch1, |
| 764 | scratch2, |
| 765 | miss); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 766 | } |
| 767 | |
| 768 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 769 | Object* StubCompiler::CompileLazyCompile(Code::Flags flags) { |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 770 | // ----------- S t a t e ------------- |
| 771 | // -- r1: function |
| 772 | // -- lr: return address |
| 773 | // ----------------------------------- |
| 774 | |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 775 | // Enter an internal frame. |
| 776 | __ EnterInternalFrame(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 777 | |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 778 | // Preserve the function. |
| 779 | __ push(r1); |
| 780 | |
| 781 | // Push the function on the stack as the argument to the runtime function. |
| 782 | __ push(r1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 783 | __ CallRuntime(Runtime::kLazyCompile, 1); |
| 784 | |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 785 | // Calculate the entry point. |
| 786 | __ add(r2, r0, Operand(Code::kHeaderSize - kHeapObjectTag)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 787 | |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 788 | // Restore saved function. |
| 789 | __ pop(r1); |
| 790 | |
| 791 | // Tear down temporary frame. |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 792 | __ LeaveInternalFrame(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 793 | |
| 794 | // Do a tail-call of the compiled function. |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 795 | __ Jump(r2); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 796 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 797 | return GetCodeWithFlags(flags, "LazyCompileStub"); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 798 | } |
| 799 | |
| 800 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 801 | Object* CallStubCompiler::CompileCallField(JSObject* object, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 802 | JSObject* holder, |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 803 | int index, |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 804 | String* name) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 805 | // ----------- S t a t e ------------- |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 806 | // -- r2 : name |
| 807 | // -- lr : return address |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 808 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 809 | Label miss; |
| 810 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 811 | const int argc = arguments().immediate(); |
| 812 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 813 | // Get the receiver of the function from the stack into r0. |
| 814 | __ ldr(r0, MemOperand(sp, argc * kPointerSize)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 815 | // Check that the receiver isn't a smi. |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 816 | __ tst(r0, Operand(kSmiTagMask)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 817 | __ b(eq, &miss); |
| 818 | |
| 819 | // Do the right check and compute the holder register. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 820 | Register reg = CheckPrototypes(object, r0, holder, r1, r3, name, &miss); |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 821 | GenerateFastPropertyLoad(masm(), r1, reg, holder, index); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 822 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 823 | GenerateCallFunction(masm(), object, arguments(), &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 824 | |
| 825 | // Handle call cache miss. |
| 826 | __ bind(&miss); |
| 827 | Handle<Code> ic = ComputeCallMiss(arguments().immediate()); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 828 | __ Jump(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 829 | |
| 830 | // Return the generated code. |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 831 | return GetCode(FIELD, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 832 | } |
| 833 | |
| 834 | |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 835 | Object* CallStubCompiler::CompileArrayPushCall(Object* object, |
| 836 | JSObject* holder, |
| 837 | JSFunction* function, |
| 838 | String* name, |
| 839 | CheckType check) { |
| 840 | // ----------- S t a t e ------------- |
| 841 | // -- r2 : name |
| 842 | // -- lr : return address |
| 843 | // ----------------------------------- |
| 844 | |
| 845 | // TODO(639): faster implementation. |
| 846 | ASSERT(check == RECEIVER_MAP_CHECK); |
| 847 | |
| 848 | Label miss; |
| 849 | |
| 850 | // Get the receiver from the stack |
| 851 | const int argc = arguments().immediate(); |
| 852 | __ ldr(r1, MemOperand(sp, argc * kPointerSize)); |
| 853 | |
| 854 | // Check that the receiver isn't a smi. |
| 855 | __ tst(r1, Operand(kSmiTagMask)); |
| 856 | __ b(eq, &miss); |
| 857 | |
| 858 | // Check that the maps haven't changed. |
| 859 | CheckPrototypes(JSObject::cast(object), r1, holder, r3, r0, name, &miss); |
| 860 | |
| 861 | if (object->IsGlobalObject()) { |
| 862 | __ ldr(r3, FieldMemOperand(r1, GlobalObject::kGlobalReceiverOffset)); |
| 863 | __ str(r3, MemOperand(sp, argc * kPointerSize)); |
| 864 | } |
| 865 | |
| 866 | __ TailCallExternalReference(ExternalReference(Builtins::c_ArrayPush), |
| 867 | argc + 1, |
| 868 | 1); |
| 869 | |
| 870 | // Handle call cache miss. |
| 871 | __ bind(&miss); |
| 872 | Handle<Code> ic = ComputeCallMiss(arguments().immediate()); |
| 873 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 874 | |
| 875 | // Return the generated code. |
| 876 | String* function_name = NULL; |
| 877 | if (function->shared()->name()->IsString()) { |
| 878 | function_name = String::cast(function->shared()->name()); |
| 879 | } |
| 880 | return GetCode(CONSTANT_FUNCTION, function_name); |
| 881 | } |
| 882 | |
| 883 | |
| 884 | Object* CallStubCompiler::CompileArrayPopCall(Object* object, |
| 885 | JSObject* holder, |
| 886 | JSFunction* function, |
| 887 | String* name, |
| 888 | CheckType check) { |
| 889 | // ----------- S t a t e ------------- |
| 890 | // -- r2 : name |
| 891 | // -- lr : return address |
| 892 | // ----------------------------------- |
| 893 | |
| 894 | // TODO(642): faster implementation. |
| 895 | ASSERT(check == RECEIVER_MAP_CHECK); |
| 896 | |
| 897 | Label miss; |
| 898 | |
| 899 | // Get the receiver from the stack |
| 900 | const int argc = arguments().immediate(); |
| 901 | __ ldr(r1, MemOperand(sp, argc * kPointerSize)); |
| 902 | |
| 903 | // Check that the receiver isn't a smi. |
| 904 | __ tst(r1, Operand(kSmiTagMask)); |
| 905 | __ b(eq, &miss); |
| 906 | |
| 907 | // Check that the maps haven't changed. |
| 908 | CheckPrototypes(JSObject::cast(object), r1, holder, r3, r0, name, &miss); |
| 909 | |
| 910 | if (object->IsGlobalObject()) { |
| 911 | __ ldr(r3, FieldMemOperand(r1, GlobalObject::kGlobalReceiverOffset)); |
| 912 | __ str(r3, MemOperand(sp, argc * kPointerSize)); |
| 913 | } |
| 914 | |
| 915 | __ TailCallExternalReference(ExternalReference(Builtins::c_ArrayPop), |
| 916 | argc + 1, |
| 917 | 1); |
| 918 | |
| 919 | // Handle call cache miss. |
| 920 | __ bind(&miss); |
| 921 | Handle<Code> ic = ComputeCallMiss(arguments().immediate()); |
| 922 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 923 | |
| 924 | // Return the generated code. |
| 925 | String* function_name = NULL; |
| 926 | if (function->shared()->name()->IsString()) { |
| 927 | function_name = String::cast(function->shared()->name()); |
| 928 | } |
| 929 | return GetCode(CONSTANT_FUNCTION, function_name); |
| 930 | } |
| 931 | |
| 932 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 933 | Object* CallStubCompiler::CompileCallConstant(Object* object, |
| 934 | JSObject* holder, |
| 935 | JSFunction* function, |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 936 | String* name, |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 937 | CheckType check) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 938 | // ----------- S t a t e ------------- |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 939 | // -- r2 : name |
| 940 | // -- lr : return address |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 941 | // ----------------------------------- |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 942 | SharedFunctionInfo* function_info = function->shared(); |
| 943 | if (function_info->HasCustomCallGenerator()) { |
| 944 | CustomCallGenerator generator = |
| 945 | ToCData<CustomCallGenerator>(function_info->function_data()); |
| 946 | return generator(this, object, holder, function, name, check); |
| 947 | } |
| 948 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 949 | Label miss; |
| 950 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 951 | // Get the receiver from the stack |
| 952 | const int argc = arguments().immediate(); |
| 953 | __ ldr(r1, MemOperand(sp, argc * kPointerSize)); |
| 954 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 955 | // Check that the receiver isn't a smi. |
| 956 | if (check != NUMBER_CHECK) { |
| 957 | __ tst(r1, Operand(kSmiTagMask)); |
| 958 | __ b(eq, &miss); |
| 959 | } |
| 960 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 961 | // Make sure that it's okay not to patch the on stack receiver |
| 962 | // unless we're doing a receiver map check. |
| 963 | ASSERT(!object->IsGlobalObject() || check == RECEIVER_MAP_CHECK); |
| 964 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 965 | switch (check) { |
| 966 | case RECEIVER_MAP_CHECK: |
| 967 | // Check that the maps haven't changed. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 968 | CheckPrototypes(JSObject::cast(object), r1, holder, r3, r0, name, &miss); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 969 | |
| 970 | // Patch the receiver on the stack with the global proxy if |
| 971 | // necessary. |
| 972 | if (object->IsGlobalObject()) { |
| 973 | __ ldr(r3, FieldMemOperand(r1, GlobalObject::kGlobalReceiverOffset)); |
| 974 | __ str(r3, MemOperand(sp, argc * kPointerSize)); |
| 975 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 976 | break; |
| 977 | |
| 978 | case STRING_CHECK: |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 979 | if (!function->IsBuiltin()) { |
| 980 | // Calling non-builtins with a value as receiver requires boxing. |
| 981 | __ jmp(&miss); |
| 982 | } else { |
| 983 | // Check that the object is a two-byte string or a symbol. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 984 | __ CompareObjectType(r1, r3, r3, FIRST_NONSTRING_TYPE); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 985 | __ b(hs, &miss); |
| 986 | // Check that the maps starting from the prototype haven't changed. |
| 987 | GenerateLoadGlobalFunctionPrototype(masm(), |
| 988 | Context::STRING_FUNCTION_INDEX, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 989 | r0); |
| 990 | CheckPrototypes(JSObject::cast(object->GetPrototype()), r0, holder, r3, |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 991 | r1, name, &miss); |
| 992 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 993 | break; |
| 994 | |
| 995 | case NUMBER_CHECK: { |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 996 | if (!function->IsBuiltin()) { |
| 997 | // Calling non-builtins with a value as receiver requires boxing. |
| 998 | __ jmp(&miss); |
| 999 | } else { |
| 1000 | Label fast; |
| 1001 | // Check that the object is a smi or a heap number. |
| 1002 | __ tst(r1, Operand(kSmiTagMask)); |
| 1003 | __ b(eq, &fast); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1004 | __ CompareObjectType(r1, r0, r0, HEAP_NUMBER_TYPE); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1005 | __ b(ne, &miss); |
| 1006 | __ bind(&fast); |
| 1007 | // Check that the maps starting from the prototype haven't changed. |
| 1008 | GenerateLoadGlobalFunctionPrototype(masm(), |
| 1009 | Context::NUMBER_FUNCTION_INDEX, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1010 | r0); |
| 1011 | CheckPrototypes(JSObject::cast(object->GetPrototype()), r0, holder, r3, |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1012 | r1, name, &miss); |
| 1013 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1014 | break; |
| 1015 | } |
| 1016 | |
| 1017 | case BOOLEAN_CHECK: { |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1018 | if (!function->IsBuiltin()) { |
| 1019 | // Calling non-builtins with a value as receiver requires boxing. |
| 1020 | __ jmp(&miss); |
| 1021 | } else { |
| 1022 | Label fast; |
| 1023 | // Check that the object is a boolean. |
| 1024 | __ LoadRoot(ip, Heap::kTrueValueRootIndex); |
| 1025 | __ cmp(r1, ip); |
| 1026 | __ b(eq, &fast); |
| 1027 | __ LoadRoot(ip, Heap::kFalseValueRootIndex); |
| 1028 | __ cmp(r1, ip); |
| 1029 | __ b(ne, &miss); |
| 1030 | __ bind(&fast); |
| 1031 | // Check that the maps starting from the prototype haven't changed. |
| 1032 | GenerateLoadGlobalFunctionPrototype(masm(), |
| 1033 | Context::BOOLEAN_FUNCTION_INDEX, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1034 | r0); |
| 1035 | CheckPrototypes(JSObject::cast(object->GetPrototype()), r0, holder, r3, |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1036 | r1, name, &miss); |
| 1037 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1038 | break; |
| 1039 | } |
| 1040 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1041 | default: |
| 1042 | UNREACHABLE(); |
| 1043 | } |
| 1044 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1045 | __ InvokeFunction(function, arguments(), JUMP_FUNCTION); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1046 | |
| 1047 | // Handle call cache miss. |
| 1048 | __ bind(&miss); |
| 1049 | Handle<Code> ic = ComputeCallMiss(arguments().immediate()); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 1050 | __ Jump(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1051 | |
| 1052 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1053 | String* function_name = NULL; |
| 1054 | if (function->shared()->name()->IsString()) { |
| 1055 | function_name = String::cast(function->shared()->name()); |
| 1056 | } |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1057 | return GetCode(CONSTANT_FUNCTION, function_name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1058 | } |
| 1059 | |
| 1060 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1061 | Object* CallStubCompiler::CompileCallInterceptor(JSObject* object, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1062 | JSObject* holder, |
| 1063 | String* name) { |
| 1064 | // ----------- S t a t e ------------- |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1065 | // -- r2 : name |
| 1066 | // -- lr : return address |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1067 | // ----------------------------------- |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1068 | ASSERT(holder->HasNamedInterceptor()); |
| 1069 | ASSERT(!holder->GetNamedInterceptor()->getter()->IsUndefined()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1070 | Label miss; |
| 1071 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1072 | const Register receiver = r0; |
| 1073 | const Register holder_reg = r1; |
| 1074 | const Register name_reg = r2; |
| 1075 | const Register scratch = r3; |
| 1076 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1077 | // Get the number of arguments. |
| 1078 | const int argc = arguments().immediate(); |
| 1079 | |
| 1080 | LookupResult lookup; |
| 1081 | LookupPostInterceptor(holder, name, &lookup); |
| 1082 | |
| 1083 | // Get the receiver from the stack into r0. |
| 1084 | __ ldr(r0, MemOperand(sp, argc * kPointerSize)); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1085 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1086 | // Check that the receiver isn't a smi. |
| 1087 | __ BranchOnSmi(receiver, &miss); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1088 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1089 | // Check that the maps haven't changed. |
| 1090 | Register reg = CheckPrototypes(object, receiver, holder, holder_reg, |
| 1091 | scratch, name, &miss); |
| 1092 | if (!reg.is(holder_reg)) { |
| 1093 | __ mov(holder_reg, reg); |
| 1094 | } |
| 1095 | |
| 1096 | // If we call a constant function when the interceptor returns |
| 1097 | // the no-result sentinel, generate code that optimizes this case. |
| 1098 | if (lookup.IsProperty() && |
| 1099 | lookup.IsCacheable() && |
| 1100 | lookup.type() == CONSTANT_FUNCTION && |
| 1101 | lookup.GetConstantFunction()->is_compiled() && |
| 1102 | !holder->IsJSArray()) { |
| 1103 | // Constant functions cannot sit on global object. |
| 1104 | ASSERT(!lookup.holder()->IsGlobalObject()); |
| 1105 | |
| 1106 | // Call the interceptor. |
| 1107 | __ EnterInternalFrame(); |
| 1108 | __ push(holder_reg); |
| 1109 | __ push(name_reg); |
| 1110 | CompileCallLoadPropertyWithInterceptor(masm(), |
| 1111 | receiver, |
| 1112 | holder_reg, |
| 1113 | name_reg, |
| 1114 | holder); |
| 1115 | __ pop(name_reg); |
| 1116 | __ pop(holder_reg); |
| 1117 | __ LeaveInternalFrame(); |
| 1118 | // r0 no longer contains the receiver. |
| 1119 | |
| 1120 | // If interceptor returns no-result sentinal, call the constant function. |
| 1121 | __ LoadRoot(scratch, Heap::kNoInterceptorResultSentinelRootIndex); |
| 1122 | __ cmp(r0, scratch); |
| 1123 | Label invoke; |
| 1124 | __ b(ne, &invoke); |
| 1125 | // Check the prototypes between the interceptor's holder and the |
| 1126 | // constant function's holder. |
| 1127 | CheckPrototypes(holder, holder_reg, |
| 1128 | lookup.holder(), r0, |
| 1129 | scratch, |
| 1130 | name, |
| 1131 | &miss); |
| 1132 | |
| 1133 | __ InvokeFunction(lookup.GetConstantFunction(), |
| 1134 | arguments(), |
| 1135 | JUMP_FUNCTION); |
| 1136 | |
| 1137 | __ bind(&invoke); |
| 1138 | |
| 1139 | } else { |
| 1140 | // Call a runtime function to load the interceptor property. |
| 1141 | __ EnterInternalFrame(); |
| 1142 | __ push(name_reg); |
| 1143 | |
| 1144 | PushInterceptorArguments(masm(), receiver, holder_reg, name_reg, holder); |
| 1145 | |
| 1146 | __ CallExternalReference( |
| 1147 | ExternalReference(IC_Utility(IC::kLoadPropertyWithInterceptorForCall)), |
| 1148 | 5); |
| 1149 | |
| 1150 | __ pop(name_reg); |
| 1151 | __ LeaveInternalFrame(); |
| 1152 | } |
| 1153 | |
| 1154 | // Move returned value, the function to call, to r1. |
| 1155 | __ mov(r1, r0); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1156 | // Restore receiver. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1157 | __ ldr(receiver, MemOperand(sp, argc * kPointerSize)); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1158 | |
| 1159 | GenerateCallFunction(masm(), object, arguments(), &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1160 | |
| 1161 | // Handle call cache miss. |
| 1162 | __ bind(&miss); |
| 1163 | Handle<Code> ic = ComputeCallMiss(arguments().immediate()); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 1164 | __ Jump(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1165 | |
| 1166 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1167 | return GetCode(INTERCEPTOR, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1168 | } |
| 1169 | |
| 1170 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1171 | Object* CallStubCompiler::CompileCallGlobal(JSObject* object, |
| 1172 | GlobalObject* holder, |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1173 | JSGlobalPropertyCell* cell, |
| 1174 | JSFunction* function, |
| 1175 | String* name) { |
| 1176 | // ----------- S t a t e ------------- |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1177 | // -- r2 : name |
| 1178 | // -- lr : return address |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1179 | // ----------------------------------- |
| 1180 | Label miss; |
| 1181 | |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1182 | // Get the number of arguments. |
| 1183 | const int argc = arguments().immediate(); |
| 1184 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1185 | // Get the receiver from the stack. |
| 1186 | __ ldr(r0, MemOperand(sp, argc * kPointerSize)); |
| 1187 | |
| 1188 | // If the object is the holder then we know that it's a global |
| 1189 | // object which can only happen for contextual calls. In this case, |
| 1190 | // the receiver cannot be a smi. |
| 1191 | if (object != holder) { |
| 1192 | __ tst(r0, Operand(kSmiTagMask)); |
| 1193 | __ b(eq, &miss); |
| 1194 | } |
| 1195 | |
| 1196 | // Check that the maps haven't changed. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1197 | CheckPrototypes(object, r0, holder, r3, r1, name, &miss); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1198 | |
| 1199 | // Get the value from the cell. |
| 1200 | __ mov(r3, Operand(Handle<JSGlobalPropertyCell>(cell))); |
| 1201 | __ ldr(r1, FieldMemOperand(r3, JSGlobalPropertyCell::kValueOffset)); |
| 1202 | |
| 1203 | // Check that the cell contains the same function. |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 1204 | if (Heap::InNewSpace(function)) { |
| 1205 | // We can't embed a pointer to a function in new space so we have |
| 1206 | // to verify that the shared function info is unchanged. This has |
| 1207 | // the nice side effect that multiple closures based on the same |
| 1208 | // function can all use this call IC. Before we load through the |
| 1209 | // function, we have to verify that it still is a function. |
| 1210 | __ tst(r1, Operand(kSmiTagMask)); |
| 1211 | __ b(eq, &miss); |
| 1212 | __ CompareObjectType(r1, r3, r3, JS_FUNCTION_TYPE); |
| 1213 | __ b(ne, &miss); |
| 1214 | |
| 1215 | // Check the shared function info. Make sure it hasn't changed. |
| 1216 | __ mov(r3, Operand(Handle<SharedFunctionInfo>(function->shared()))); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1217 | __ ldr(r4, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); |
| 1218 | __ cmp(r4, r3); |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 1219 | __ b(ne, &miss); |
| 1220 | } else { |
| 1221 | __ cmp(r1, Operand(Handle<JSFunction>(function))); |
| 1222 | __ b(ne, &miss); |
| 1223 | } |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1224 | |
| 1225 | // Patch the receiver on the stack with the global proxy if |
| 1226 | // necessary. |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1227 | if (object->IsGlobalObject()) { |
| 1228 | __ ldr(r3, FieldMemOperand(r0, GlobalObject::kGlobalReceiverOffset)); |
| 1229 | __ str(r3, MemOperand(sp, argc * kPointerSize)); |
| 1230 | } |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1231 | |
| 1232 | // Setup the context (function already in r1). |
| 1233 | __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); |
| 1234 | |
| 1235 | // Jump to the cached code (tail call). |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1236 | __ IncrementCounter(&Counters::call_global_inline, 1, r1, r3); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1237 | ASSERT(function->is_compiled()); |
| 1238 | Handle<Code> code(function->code()); |
| 1239 | ParameterCount expected(function->shared()->formal_parameter_count()); |
| 1240 | __ InvokeCode(code, expected, arguments(), |
| 1241 | RelocInfo::CODE_TARGET, JUMP_FUNCTION); |
| 1242 | |
| 1243 | // Handle call cache miss. |
| 1244 | __ bind(&miss); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1245 | __ IncrementCounter(&Counters::call_global_inline_miss, 1, r1, r3); |
| 1246 | Handle<Code> ic = ComputeCallMiss(arguments().immediate()); |
| 1247 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 1248 | |
| 1249 | // Return the generated code. |
| 1250 | return GetCode(NORMAL, name); |
| 1251 | } |
| 1252 | |
| 1253 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1254 | Object* StoreStubCompiler::CompileStoreField(JSObject* object, |
| 1255 | int index, |
| 1256 | Map* transition, |
| 1257 | String* name) { |
| 1258 | // ----------- S t a t e ------------- |
| 1259 | // -- r0 : value |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1260 | // -- r1 : receiver |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1261 | // -- r2 : name |
| 1262 | // -- lr : return address |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1263 | // ----------------------------------- |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1264 | Label miss; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1265 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1266 | GenerateStoreField(masm(), |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1267 | object, |
| 1268 | index, |
| 1269 | transition, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1270 | r1, r2, r3, |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1271 | &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1272 | __ bind(&miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1273 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss)); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 1274 | __ Jump(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1275 | |
| 1276 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1277 | return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1278 | } |
| 1279 | |
| 1280 | |
| 1281 | Object* StoreStubCompiler::CompileStoreCallback(JSObject* object, |
| 1282 | AccessorInfo* callback, |
| 1283 | String* name) { |
| 1284 | // ----------- S t a t e ------------- |
| 1285 | // -- r0 : value |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1286 | // -- r1 : receiver |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1287 | // -- r2 : name |
| 1288 | // -- lr : return address |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1289 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1290 | Label miss; |
| 1291 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1292 | // Check that the object isn't a smi. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1293 | __ tst(r1, Operand(kSmiTagMask)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1294 | __ b(eq, &miss); |
| 1295 | |
| 1296 | // Check that the map of the object hasn't changed. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1297 | __ ldr(r3, FieldMemOperand(r1, HeapObject::kMapOffset)); |
| 1298 | __ cmp(r3, Operand(Handle<Map>(object->map()))); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1299 | __ b(ne, &miss); |
| 1300 | |
| 1301 | // Perform global security token check if needed. |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 1302 | if (object->IsJSGlobalProxy()) { |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1303 | __ CheckAccessGlobalProxy(r1, r3, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1304 | } |
| 1305 | |
| 1306 | // Stub never generated for non-global objects that require access |
| 1307 | // checks. |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 1308 | ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1309 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1310 | __ push(r1); // receiver |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1311 | __ mov(ip, Operand(Handle<AccessorInfo>(callback))); // callback info |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1312 | __ stm(db_w, sp, ip.bit() | r2.bit() | r0.bit()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1313 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 1314 | // Do tail-call to the runtime system. |
| 1315 | ExternalReference store_callback_property = |
| 1316 | ExternalReference(IC_Utility(IC::kStoreCallbackProperty)); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 1317 | __ TailCallExternalReference(store_callback_property, 4, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1318 | |
| 1319 | // Handle store cache miss. |
| 1320 | __ bind(&miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1321 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss)); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 1322 | __ Jump(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1323 | |
| 1324 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1325 | return GetCode(CALLBACKS, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1326 | } |
| 1327 | |
| 1328 | |
| 1329 | Object* StoreStubCompiler::CompileStoreInterceptor(JSObject* receiver, |
| 1330 | String* name) { |
| 1331 | // ----------- S t a t e ------------- |
| 1332 | // -- r0 : value |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1333 | // -- r1 : receiver |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1334 | // -- r2 : name |
| 1335 | // -- lr : return address |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1336 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1337 | Label miss; |
| 1338 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1339 | // Check that the object isn't a smi. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1340 | __ tst(r1, Operand(kSmiTagMask)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1341 | __ b(eq, &miss); |
| 1342 | |
| 1343 | // Check that the map of the object hasn't changed. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1344 | __ ldr(r3, FieldMemOperand(r1, HeapObject::kMapOffset)); |
| 1345 | __ cmp(r3, Operand(Handle<Map>(receiver->map()))); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1346 | __ b(ne, &miss); |
| 1347 | |
| 1348 | // Perform global security token check if needed. |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 1349 | if (receiver->IsJSGlobalProxy()) { |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1350 | __ CheckAccessGlobalProxy(r1, r3, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1351 | } |
| 1352 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1353 | // Stub is never generated for non-global objects that require access |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1354 | // checks. |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 1355 | ASSERT(receiver->IsJSGlobalProxy() || !receiver->IsAccessCheckNeeded()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1356 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1357 | __ push(r1); // receiver. |
| 1358 | __ push(r2); // name. |
| 1359 | __ push(r0); // value. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1360 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 1361 | // Do tail-call to the runtime system. |
| 1362 | ExternalReference store_ic_property = |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1363 | ExternalReference(IC_Utility(IC::kStoreInterceptorProperty)); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 1364 | __ TailCallExternalReference(store_ic_property, 3, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1365 | |
| 1366 | // Handle store cache miss. |
| 1367 | __ bind(&miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1368 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss)); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 1369 | __ Jump(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1370 | |
| 1371 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1372 | return GetCode(INTERCEPTOR, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1373 | } |
| 1374 | |
| 1375 | |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1376 | Object* StoreStubCompiler::CompileStoreGlobal(GlobalObject* object, |
| 1377 | JSGlobalPropertyCell* cell, |
| 1378 | String* name) { |
| 1379 | // ----------- S t a t e ------------- |
| 1380 | // -- r0 : value |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1381 | // -- r1 : receiver |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1382 | // -- r2 : name |
| 1383 | // -- lr : return address |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1384 | // ----------------------------------- |
| 1385 | Label miss; |
| 1386 | |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1387 | // Check that the map of the global has not changed. |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1388 | __ ldr(r3, FieldMemOperand(r1, HeapObject::kMapOffset)); |
| 1389 | __ cmp(r3, Operand(Handle<Map>(object->map()))); |
| 1390 | __ b(ne, &miss); |
| 1391 | |
| 1392 | // Store the value in the cell. |
| 1393 | __ mov(r2, Operand(Handle<JSGlobalPropertyCell>(cell))); |
| 1394 | __ str(r0, FieldMemOperand(r2, JSGlobalPropertyCell::kValueOffset)); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1395 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1396 | __ IncrementCounter(&Counters::named_store_global_inline, 1, r4, r3); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1397 | __ Ret(); |
| 1398 | |
| 1399 | // Handle store cache miss. |
| 1400 | __ bind(&miss); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1401 | __ IncrementCounter(&Counters::named_store_global_inline_miss, 1, r4, r3); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1402 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss)); |
| 1403 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 1404 | |
| 1405 | // Return the generated code. |
| 1406 | return GetCode(NORMAL, name); |
| 1407 | } |
| 1408 | |
| 1409 | |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 1410 | Object* LoadStubCompiler::CompileLoadNonexistent(String* name, |
| 1411 | JSObject* object, |
| 1412 | JSObject* last) { |
| 1413 | // ----------- S t a t e ------------- |
| 1414 | // -- r2 : name |
| 1415 | // -- lr : return address |
| 1416 | // -- [sp] : receiver |
| 1417 | // ----------------------------------- |
| 1418 | Label miss; |
| 1419 | |
| 1420 | // Load receiver. |
| 1421 | __ ldr(r0, MemOperand(sp, 0)); |
| 1422 | |
| 1423 | // Check that receiver is not a smi. |
| 1424 | __ tst(r0, Operand(kSmiTagMask)); |
| 1425 | __ b(eq, &miss); |
| 1426 | |
| 1427 | // Check the maps of the full prototype chain. |
| 1428 | CheckPrototypes(object, r0, last, r3, r1, name, &miss); |
| 1429 | |
| 1430 | // If the last object in the prototype chain is a global object, |
| 1431 | // check that the global property cell is empty. |
| 1432 | if (last->IsGlobalObject()) { |
| 1433 | Object* cell = GenerateCheckPropertyCell(masm(), |
| 1434 | GlobalObject::cast(last), |
| 1435 | name, |
| 1436 | r1, |
| 1437 | &miss); |
| 1438 | if (cell->IsFailure()) return cell; |
| 1439 | } |
| 1440 | |
| 1441 | // Return undefined if maps of the full prototype chain are still the |
| 1442 | // same and no global property with this name contains a value. |
| 1443 | __ LoadRoot(r0, Heap::kUndefinedValueRootIndex); |
| 1444 | __ Ret(); |
| 1445 | |
| 1446 | __ bind(&miss); |
| 1447 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 1448 | |
| 1449 | // Return the generated code. |
| 1450 | return GetCode(NONEXISTENT, Heap::empty_string()); |
| 1451 | } |
| 1452 | |
| 1453 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1454 | Object* LoadStubCompiler::CompileLoadField(JSObject* object, |
| 1455 | JSObject* holder, |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1456 | int index, |
| 1457 | String* name) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1458 | // ----------- S t a t e ------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1459 | // -- r2 : name |
| 1460 | // -- lr : return address |
| 1461 | // -- [sp] : receiver |
| 1462 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1463 | Label miss; |
| 1464 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 1465 | __ ldr(r0, MemOperand(sp, 0)); |
| 1466 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1467 | GenerateLoadField(object, holder, r0, r3, r1, index, name, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1468 | __ bind(&miss); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1469 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1470 | |
| 1471 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1472 | return GetCode(FIELD, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1473 | } |
| 1474 | |
| 1475 | |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 1476 | Object* LoadStubCompiler::CompileLoadCallback(String* name, |
| 1477 | JSObject* object, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1478 | JSObject* holder, |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 1479 | AccessorInfo* callback) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1480 | // ----------- S t a t e ------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1481 | // -- r2 : name |
| 1482 | // -- lr : return address |
| 1483 | // -- [sp] : receiver |
| 1484 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1485 | Label miss; |
| 1486 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 1487 | __ ldr(r0, MemOperand(sp, 0)); |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 1488 | Failure* failure = Failure::InternalError(); |
| 1489 | bool success = GenerateLoadCallback(object, holder, r0, r2, r3, r1, |
| 1490 | callback, name, &miss, &failure); |
| 1491 | if (!success) return failure; |
| 1492 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1493 | __ bind(&miss); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1494 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1495 | |
| 1496 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1497 | return GetCode(CALLBACKS, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1498 | } |
| 1499 | |
| 1500 | |
| 1501 | Object* LoadStubCompiler::CompileLoadConstant(JSObject* object, |
| 1502 | JSObject* holder, |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1503 | Object* value, |
| 1504 | String* name) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1505 | // ----------- S t a t e ------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1506 | // -- r2 : name |
| 1507 | // -- lr : return address |
| 1508 | // -- [sp] : receiver |
| 1509 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1510 | Label miss; |
| 1511 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 1512 | __ ldr(r0, MemOperand(sp, 0)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1513 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1514 | GenerateLoadConstant(object, holder, r0, r3, r1, value, name, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1515 | __ bind(&miss); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1516 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1517 | |
| 1518 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1519 | return GetCode(CONSTANT_FUNCTION, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1520 | } |
| 1521 | |
| 1522 | |
| 1523 | Object* LoadStubCompiler::CompileLoadInterceptor(JSObject* object, |
| 1524 | JSObject* holder, |
| 1525 | String* name) { |
| 1526 | // ----------- S t a t e ------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1527 | // -- r2 : name |
| 1528 | // -- lr : return address |
| 1529 | // -- [sp] : receiver |
| 1530 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1531 | Label miss; |
| 1532 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 1533 | __ ldr(r0, MemOperand(sp, 0)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1534 | |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1535 | LookupResult lookup; |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1536 | LookupPostInterceptor(holder, name, &lookup); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1537 | GenerateLoadInterceptor(object, |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 1538 | holder, |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1539 | &lookup, |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 1540 | r0, |
| 1541 | r2, |
| 1542 | r3, |
| 1543 | r1, |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1544 | name, |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 1545 | &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1546 | __ bind(&miss); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1547 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1548 | |
| 1549 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1550 | return GetCode(INTERCEPTOR, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1551 | } |
| 1552 | |
| 1553 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1554 | Object* LoadStubCompiler::CompileLoadGlobal(JSObject* object, |
| 1555 | GlobalObject* holder, |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1556 | JSGlobalPropertyCell* cell, |
| 1557 | String* name, |
| 1558 | bool is_dont_delete) { |
| 1559 | // ----------- S t a t e ------------- |
| 1560 | // -- r2 : name |
| 1561 | // -- lr : return address |
| 1562 | // -- [sp] : receiver |
| 1563 | // ----------------------------------- |
| 1564 | Label miss; |
| 1565 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1566 | // Get the receiver from the stack. |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1567 | __ ldr(r1, MemOperand(sp, 0 * kPointerSize)); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1568 | |
| 1569 | // If the object is the holder then we know that it's a global |
| 1570 | // object which can only happen for contextual calls. In this case, |
| 1571 | // the receiver cannot be a smi. |
| 1572 | if (object != holder) { |
| 1573 | __ tst(r1, Operand(kSmiTagMask)); |
| 1574 | __ b(eq, &miss); |
| 1575 | } |
| 1576 | |
| 1577 | // Check that the map of the global has not changed. |
| 1578 | CheckPrototypes(object, r1, holder, r3, r0, name, &miss); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1579 | |
| 1580 | // Get the value from the cell. |
| 1581 | __ mov(r3, Operand(Handle<JSGlobalPropertyCell>(cell))); |
| 1582 | __ ldr(r0, FieldMemOperand(r3, JSGlobalPropertyCell::kValueOffset)); |
| 1583 | |
| 1584 | // Check for deleted property if property can actually be deleted. |
| 1585 | if (!is_dont_delete) { |
ager@chromium.org | ab99eea | 2009-08-25 07:05:41 +0000 | [diff] [blame] | 1586 | __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); |
| 1587 | __ cmp(r0, ip); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1588 | __ b(eq, &miss); |
| 1589 | } |
| 1590 | |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1591 | __ IncrementCounter(&Counters::named_load_global_inline, 1, r1, r3); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1592 | __ Ret(); |
| 1593 | |
| 1594 | __ bind(&miss); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1595 | __ IncrementCounter(&Counters::named_load_global_inline_miss, 1, r1, r3); |
| 1596 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 1597 | |
| 1598 | // Return the generated code. |
| 1599 | return GetCode(NORMAL, name); |
| 1600 | } |
| 1601 | |
| 1602 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1603 | Object* KeyedLoadStubCompiler::CompileLoadField(String* name, |
| 1604 | JSObject* receiver, |
| 1605 | JSObject* holder, |
| 1606 | int index) { |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1607 | // ----------- S t a t e ------------- |
| 1608 | // -- lr : return address |
| 1609 | // -- sp[0] : key |
| 1610 | // -- sp[4] : receiver |
| 1611 | // ----------------------------------- |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1612 | Label miss; |
| 1613 | |
| 1614 | __ ldr(r2, MemOperand(sp, 0)); |
| 1615 | __ ldr(r0, MemOperand(sp, kPointerSize)); |
| 1616 | |
| 1617 | __ cmp(r2, Operand(Handle<String>(name))); |
| 1618 | __ b(ne, &miss); |
| 1619 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1620 | GenerateLoadField(receiver, holder, r0, r3, r1, index, name, &miss); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1621 | __ bind(&miss); |
| 1622 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1623 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1624 | return GetCode(FIELD, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1625 | } |
| 1626 | |
| 1627 | |
| 1628 | Object* KeyedLoadStubCompiler::CompileLoadCallback(String* name, |
| 1629 | JSObject* receiver, |
| 1630 | JSObject* holder, |
| 1631 | AccessorInfo* callback) { |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1632 | // ----------- S t a t e ------------- |
| 1633 | // -- lr : return address |
| 1634 | // -- sp[0] : key |
| 1635 | // -- sp[4] : receiver |
| 1636 | // ----------------------------------- |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1637 | Label miss; |
| 1638 | |
| 1639 | __ ldr(r2, MemOperand(sp, 0)); |
| 1640 | __ ldr(r0, MemOperand(sp, kPointerSize)); |
| 1641 | |
| 1642 | __ cmp(r2, Operand(Handle<String>(name))); |
| 1643 | __ b(ne, &miss); |
| 1644 | |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 1645 | Failure* failure = Failure::InternalError(); |
| 1646 | bool success = GenerateLoadCallback(receiver, holder, r0, r2, r3, r1, |
| 1647 | callback, name, &miss, &failure); |
| 1648 | if (!success) return failure; |
| 1649 | |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1650 | __ bind(&miss); |
| 1651 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1652 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1653 | return GetCode(CALLBACKS, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1654 | } |
| 1655 | |
| 1656 | |
| 1657 | Object* KeyedLoadStubCompiler::CompileLoadConstant(String* name, |
| 1658 | JSObject* receiver, |
| 1659 | JSObject* holder, |
| 1660 | Object* value) { |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1661 | // ----------- S t a t e ------------- |
| 1662 | // -- lr : return address |
| 1663 | // -- sp[0] : key |
| 1664 | // -- sp[4] : receiver |
| 1665 | // ----------------------------------- |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1666 | Label miss; |
| 1667 | |
| 1668 | // Check the key is the cached one |
| 1669 | __ ldr(r2, MemOperand(sp, 0)); |
| 1670 | __ ldr(r0, MemOperand(sp, kPointerSize)); |
| 1671 | |
| 1672 | __ cmp(r2, Operand(Handle<String>(name))); |
| 1673 | __ b(ne, &miss); |
| 1674 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1675 | GenerateLoadConstant(receiver, holder, r0, r3, r1, value, name, &miss); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1676 | __ bind(&miss); |
| 1677 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1678 | |
| 1679 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1680 | return GetCode(CONSTANT_FUNCTION, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1681 | } |
| 1682 | |
| 1683 | |
| 1684 | Object* KeyedLoadStubCompiler::CompileLoadInterceptor(JSObject* receiver, |
| 1685 | JSObject* holder, |
| 1686 | String* name) { |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1687 | // ----------- S t a t e ------------- |
| 1688 | // -- lr : return address |
| 1689 | // -- sp[0] : key |
| 1690 | // -- sp[4] : receiver |
| 1691 | // ----------------------------------- |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1692 | Label miss; |
| 1693 | |
| 1694 | // Check the key is the cached one |
| 1695 | __ ldr(r2, MemOperand(sp, 0)); |
| 1696 | __ ldr(r0, MemOperand(sp, kPointerSize)); |
| 1697 | |
| 1698 | __ cmp(r2, Operand(Handle<String>(name))); |
| 1699 | __ b(ne, &miss); |
| 1700 | |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1701 | LookupResult lookup; |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1702 | LookupPostInterceptor(holder, name, &lookup); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1703 | GenerateLoadInterceptor(receiver, |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 1704 | holder, |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1705 | &lookup, |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 1706 | r0, |
| 1707 | r2, |
| 1708 | r3, |
| 1709 | r1, |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1710 | name, |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 1711 | &miss); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1712 | __ bind(&miss); |
| 1713 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1714 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1715 | return GetCode(INTERCEPTOR, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1716 | } |
| 1717 | |
| 1718 | |
| 1719 | Object* KeyedLoadStubCompiler::CompileLoadArrayLength(String* name) { |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1720 | // ----------- S t a t e ------------- |
| 1721 | // -- lr : return address |
| 1722 | // -- sp[0] : key |
| 1723 | // -- sp[4] : receiver |
| 1724 | // ----------------------------------- |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1725 | Label miss; |
| 1726 | |
| 1727 | // Check the key is the cached one |
| 1728 | __ ldr(r2, MemOperand(sp, 0)); |
| 1729 | __ ldr(r0, MemOperand(sp, kPointerSize)); |
| 1730 | |
| 1731 | __ cmp(r2, Operand(Handle<String>(name))); |
| 1732 | __ b(ne, &miss); |
| 1733 | |
| 1734 | GenerateLoadArrayLength(masm(), r0, r3, &miss); |
| 1735 | __ bind(&miss); |
| 1736 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1737 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1738 | return GetCode(CALLBACKS, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1739 | } |
| 1740 | |
| 1741 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 1742 | Object* KeyedLoadStubCompiler::CompileLoadStringLength(String* name) { |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1743 | // ----------- S t a t e ------------- |
| 1744 | // -- lr : return address |
| 1745 | // -- sp[0] : key |
| 1746 | // -- sp[4] : receiver |
| 1747 | // ----------------------------------- |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1748 | Label miss; |
| 1749 | __ IncrementCounter(&Counters::keyed_load_string_length, 1, r1, r3); |
| 1750 | |
| 1751 | __ ldr(r2, MemOperand(sp)); |
| 1752 | __ ldr(r0, MemOperand(sp, kPointerSize)); // receiver |
| 1753 | |
| 1754 | __ cmp(r2, Operand(Handle<String>(name))); |
| 1755 | __ b(ne, &miss); |
| 1756 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1757 | GenerateLoadStringLength(masm(), r0, r1, r3, &miss); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1758 | __ bind(&miss); |
| 1759 | __ DecrementCounter(&Counters::keyed_load_string_length, 1, r1, r3); |
| 1760 | |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1761 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1762 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1763 | return GetCode(CALLBACKS, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1764 | } |
| 1765 | |
| 1766 | |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1767 | // TODO(1224671): implement the fast case. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1768 | Object* KeyedLoadStubCompiler::CompileLoadFunctionPrototype(String* name) { |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1769 | // ----------- S t a t e ------------- |
| 1770 | // -- lr : return address |
| 1771 | // -- sp[0] : key |
| 1772 | // -- sp[4] : receiver |
| 1773 | // ----------------------------------- |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1774 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1775 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1776 | return GetCode(CALLBACKS, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1777 | } |
| 1778 | |
| 1779 | |
| 1780 | Object* KeyedStoreStubCompiler::CompileStoreField(JSObject* object, |
| 1781 | int index, |
| 1782 | Map* transition, |
| 1783 | String* name) { |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1784 | // ----------- S t a t e ------------- |
| 1785 | // -- r0 : value |
| 1786 | // -- r2 : name |
| 1787 | // -- lr : return address |
| 1788 | // -- [sp] : receiver |
| 1789 | // ----------------------------------- |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1790 | Label miss; |
| 1791 | |
| 1792 | __ IncrementCounter(&Counters::keyed_store_field, 1, r1, r3); |
| 1793 | |
| 1794 | // Check that the name has not changed. |
| 1795 | __ cmp(r2, Operand(Handle<String>(name))); |
| 1796 | __ b(ne, &miss); |
| 1797 | |
| 1798 | // Load receiver from the stack. |
| 1799 | __ ldr(r3, MemOperand(sp)); |
| 1800 | // r1 is used as scratch register, r3 and r2 might be clobbered. |
| 1801 | GenerateStoreField(masm(), |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1802 | object, |
| 1803 | index, |
| 1804 | transition, |
| 1805 | r3, r2, r1, |
| 1806 | &miss); |
| 1807 | __ bind(&miss); |
| 1808 | |
| 1809 | __ DecrementCounter(&Counters::keyed_store_field, 1, r1, r3); |
| 1810 | __ mov(r2, Operand(Handle<String>(name))); // restore name register. |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1811 | Handle<Code> ic(Builtins::builtin(Builtins::KeyedStoreIC_Miss)); |
| 1812 | __ Jump(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1813 | |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1814 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1815 | return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1816 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1817 | |
| 1818 | |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 1819 | Object* ConstructStubCompiler::CompileConstructStub( |
| 1820 | SharedFunctionInfo* shared) { |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 1821 | // ----------- S t a t e ------------- |
| 1822 | // -- r0 : argc |
| 1823 | // -- r1 : constructor |
| 1824 | // -- lr : return address |
| 1825 | // -- [sp] : last argument |
| 1826 | // ----------------------------------- |
| 1827 | Label generic_stub_call; |
| 1828 | |
| 1829 | // Use r7 for holding undefined which is used in several places below. |
| 1830 | __ LoadRoot(r7, Heap::kUndefinedValueRootIndex); |
| 1831 | |
| 1832 | #ifdef ENABLE_DEBUGGER_SUPPORT |
| 1833 | // Check to see whether there are any break points in the function code. If |
| 1834 | // there are jump to the generic constructor stub which calls the actual |
| 1835 | // code for the function thereby hitting the break points. |
| 1836 | __ ldr(r2, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); |
| 1837 | __ ldr(r2, FieldMemOperand(r2, SharedFunctionInfo::kDebugInfoOffset)); |
| 1838 | __ cmp(r2, r7); |
| 1839 | __ b(ne, &generic_stub_call); |
| 1840 | #endif |
| 1841 | |
| 1842 | // Load the initial map and verify that it is in fact a map. |
| 1843 | // r1: constructor function |
| 1844 | // r7: undefined |
| 1845 | __ ldr(r2, FieldMemOperand(r1, JSFunction::kPrototypeOrInitialMapOffset)); |
| 1846 | __ tst(r2, Operand(kSmiTagMask)); |
| 1847 | __ b(eq, &generic_stub_call); |
| 1848 | __ CompareObjectType(r2, r3, r4, MAP_TYPE); |
| 1849 | __ b(ne, &generic_stub_call); |
| 1850 | |
| 1851 | #ifdef DEBUG |
| 1852 | // Cannot construct functions this way. |
| 1853 | // r0: argc |
| 1854 | // r1: constructor function |
| 1855 | // r2: initial map |
| 1856 | // r7: undefined |
| 1857 | __ CompareInstanceType(r2, r3, JS_FUNCTION_TYPE); |
| 1858 | __ Check(ne, "Function constructed by construct stub."); |
| 1859 | #endif |
| 1860 | |
| 1861 | // Now allocate the JSObject in new space. |
| 1862 | // r0: argc |
| 1863 | // r1: constructor function |
| 1864 | // r2: initial map |
| 1865 | // r7: undefined |
| 1866 | __ ldrb(r3, FieldMemOperand(r2, Map::kInstanceSizeOffset)); |
sgjesse@chromium.org | c514574 | 2009-10-07 09:00:33 +0000 | [diff] [blame] | 1867 | __ AllocateInNewSpace(r3, |
| 1868 | r4, |
| 1869 | r5, |
| 1870 | r6, |
| 1871 | &generic_stub_call, |
| 1872 | NO_ALLOCATION_FLAGS); |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 1873 | |
| 1874 | // Allocated the JSObject, now initialize the fields. Map is set to initial |
| 1875 | // map and properties and elements are set to empty fixed array. |
| 1876 | // r0: argc |
| 1877 | // r1: constructor function |
| 1878 | // r2: initial map |
| 1879 | // r3: object size (in words) |
| 1880 | // r4: JSObject (not tagged) |
| 1881 | // r7: undefined |
| 1882 | __ LoadRoot(r6, Heap::kEmptyFixedArrayRootIndex); |
| 1883 | __ mov(r5, r4); |
| 1884 | ASSERT_EQ(0 * kPointerSize, JSObject::kMapOffset); |
| 1885 | __ str(r2, MemOperand(r5, kPointerSize, PostIndex)); |
| 1886 | ASSERT_EQ(1 * kPointerSize, JSObject::kPropertiesOffset); |
| 1887 | __ str(r6, MemOperand(r5, kPointerSize, PostIndex)); |
| 1888 | ASSERT_EQ(2 * kPointerSize, JSObject::kElementsOffset); |
| 1889 | __ str(r6, MemOperand(r5, kPointerSize, PostIndex)); |
| 1890 | |
| 1891 | // Calculate the location of the first argument. The stack contains only the |
| 1892 | // argc arguments. |
| 1893 | __ add(r1, sp, Operand(r0, LSL, kPointerSizeLog2)); |
| 1894 | |
| 1895 | // Fill all the in-object properties with undefined. |
| 1896 | // r0: argc |
| 1897 | // r1: first argument |
| 1898 | // r3: object size (in words) |
| 1899 | // r4: JSObject (not tagged) |
| 1900 | // r5: First in-object property of JSObject (not tagged) |
| 1901 | // r7: undefined |
| 1902 | // Fill the initialized properties with a constant value or a passed argument |
| 1903 | // depending on the this.x = ...; assignment in the function. |
| 1904 | for (int i = 0; i < shared->this_property_assignments_count(); i++) { |
| 1905 | if (shared->IsThisPropertyAssignmentArgument(i)) { |
| 1906 | Label not_passed, next; |
| 1907 | // Check if the argument assigned to the property is actually passed. |
| 1908 | int arg_number = shared->GetThisPropertyAssignmentArgument(i); |
| 1909 | __ cmp(r0, Operand(arg_number)); |
| 1910 | __ b(le, ¬_passed); |
| 1911 | // Argument passed - find it on the stack. |
| 1912 | __ ldr(r2, MemOperand(r1, (arg_number + 1) * -kPointerSize)); |
| 1913 | __ str(r2, MemOperand(r5, kPointerSize, PostIndex)); |
| 1914 | __ b(&next); |
| 1915 | __ bind(¬_passed); |
| 1916 | // Set the property to undefined. |
| 1917 | __ str(r7, MemOperand(r5, kPointerSize, PostIndex)); |
| 1918 | __ bind(&next); |
| 1919 | } else { |
| 1920 | // Set the property to the constant value. |
| 1921 | Handle<Object> constant(shared->GetThisPropertyAssignmentConstant(i)); |
| 1922 | __ mov(r2, Operand(constant)); |
| 1923 | __ str(r2, MemOperand(r5, kPointerSize, PostIndex)); |
| 1924 | } |
| 1925 | } |
| 1926 | |
| 1927 | // Fill the unused in-object property fields with undefined. |
| 1928 | for (int i = shared->this_property_assignments_count(); |
| 1929 | i < shared->CalculateInObjectProperties(); |
| 1930 | i++) { |
| 1931 | __ str(r7, MemOperand(r5, kPointerSize, PostIndex)); |
| 1932 | } |
| 1933 | |
| 1934 | // r0: argc |
| 1935 | // r4: JSObject (not tagged) |
| 1936 | // Move argc to r1 and the JSObject to return to r0 and tag it. |
| 1937 | __ mov(r1, r0); |
| 1938 | __ mov(r0, r4); |
| 1939 | __ orr(r0, r0, Operand(kHeapObjectTag)); |
| 1940 | |
| 1941 | // r0: JSObject |
| 1942 | // r1: argc |
| 1943 | // Remove caller arguments and receiver from the stack and return. |
| 1944 | __ add(sp, sp, Operand(r1, LSL, kPointerSizeLog2)); |
| 1945 | __ add(sp, sp, Operand(kPointerSize)); |
| 1946 | __ IncrementCounter(&Counters::constructed_objects, 1, r1, r2); |
| 1947 | __ IncrementCounter(&Counters::constructed_objects_stub, 1, r1, r2); |
| 1948 | __ Jump(lr); |
| 1949 | |
| 1950 | // Jump to the generic stub in case the specialized code cannot handle the |
| 1951 | // construction. |
| 1952 | __ bind(&generic_stub_call); |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 1953 | Code* code = Builtins::builtin(Builtins::JSConstructStubGeneric); |
| 1954 | Handle<Code> generic_construct_stub(code); |
| 1955 | __ Jump(generic_construct_stub, RelocInfo::CODE_TARGET); |
| 1956 | |
| 1957 | // Return the generated code. |
| 1958 | return GetCode(); |
| 1959 | } |
| 1960 | |
| 1961 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1962 | #undef __ |
| 1963 | |
| 1964 | } } // namespace v8::internal |