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)); |
kmillikin@chromium.org | f8253d7 | 2010-05-03 09:56:08 +0000 | [diff] [blame] | 232 | __ mov(r0, Operand(r0, LSL, kSmiTagSize)); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 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)); |
kmillikin@chromium.org | f8253d7 | 2010-05-03 09:56:08 +0000 | [diff] [blame] | 244 | __ mov(r0, Operand(r0, LSL, kSmiTagSize)); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 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))); |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 299 | __ Push(r2, r0); |
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); |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 467 | __ Push(holder, name_); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 468 | |
| 469 | CompileCallLoadPropertyWithInterceptor(masm, |
| 470 | receiver, |
| 471 | holder, |
| 472 | name_, |
| 473 | holder_obj); |
| 474 | |
| 475 | Label interceptor_failed; |
| 476 | // Compare with no_interceptor_result_sentinel. |
| 477 | __ LoadRoot(scratch1, Heap::kNoInterceptorResultSentinelRootIndex); |
| 478 | __ cmp(r0, scratch1); |
| 479 | __ b(eq, &interceptor_failed); |
| 480 | __ LeaveInternalFrame(); |
| 481 | __ Ret(); |
| 482 | |
| 483 | __ bind(&interceptor_failed); |
| 484 | __ pop(name_); |
| 485 | __ pop(holder); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 486 | __ pop(receiver); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 487 | |
| 488 | __ LeaveInternalFrame(); |
| 489 | |
| 490 | if (lookup->type() == FIELD) { |
| 491 | holder = stub_compiler->CheckPrototypes(holder_obj, |
| 492 | holder, |
| 493 | lookup->holder(), |
| 494 | scratch1, |
| 495 | scratch2, |
| 496 | name, |
| 497 | miss_label); |
| 498 | stub_compiler->GenerateFastPropertyLoad(masm, |
| 499 | r0, |
| 500 | holder, |
| 501 | lookup->holder(), |
| 502 | lookup->GetFieldIndex()); |
| 503 | __ Ret(); |
| 504 | } else { |
| 505 | ASSERT(lookup->type() == CALLBACKS); |
| 506 | ASSERT(lookup->GetCallbackObject()->IsAccessorInfo()); |
| 507 | ASSERT(callback != NULL); |
| 508 | ASSERT(callback->getter() != NULL); |
| 509 | |
| 510 | Label cleanup; |
| 511 | __ pop(scratch2); |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 512 | __ Push(receiver, scratch2); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 513 | |
| 514 | holder = stub_compiler->CheckPrototypes(holder_obj, holder, |
| 515 | lookup->holder(), scratch1, |
| 516 | scratch2, |
| 517 | name, |
| 518 | &cleanup); |
| 519 | |
| 520 | __ push(holder); |
| 521 | __ Move(holder, Handle<AccessorInfo>(callback)); |
| 522 | __ push(holder); |
| 523 | __ ldr(scratch1, FieldMemOperand(holder, AccessorInfo::kDataOffset)); |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 524 | __ Push(scratch1, name_); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 525 | |
| 526 | ExternalReference ref = |
| 527 | ExternalReference(IC_Utility(IC::kLoadCallbackProperty)); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 528 | __ TailCallExternalReference(ref, 5, 1); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 529 | |
| 530 | __ bind(&cleanup); |
| 531 | __ pop(scratch1); |
| 532 | __ pop(scratch2); |
| 533 | __ push(scratch1); |
| 534 | } |
| 535 | } |
| 536 | |
| 537 | |
| 538 | void CompileRegular(MacroAssembler* masm, |
| 539 | Register receiver, |
| 540 | Register holder, |
| 541 | Register scratch, |
| 542 | JSObject* holder_obj, |
| 543 | Label* miss_label) { |
| 544 | PushInterceptorArguments(masm, receiver, holder, name_, holder_obj); |
| 545 | |
| 546 | ExternalReference ref = ExternalReference( |
| 547 | IC_Utility(IC::kLoadPropertyWithInterceptorForLoad)); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 548 | __ TailCallExternalReference(ref, 5, 1); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 549 | } |
| 550 | |
| 551 | private: |
| 552 | Register name_; |
| 553 | }; |
| 554 | |
| 555 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 556 | static void CompileLoadInterceptor(LoadInterceptorCompiler* compiler, |
| 557 | StubCompiler* stub_compiler, |
| 558 | MacroAssembler* masm, |
| 559 | JSObject* object, |
| 560 | JSObject* holder, |
| 561 | String* name, |
| 562 | LookupResult* lookup, |
| 563 | Register receiver, |
| 564 | Register scratch1, |
| 565 | Register scratch2, |
| 566 | Label* miss) { |
| 567 | ASSERT(holder->HasNamedInterceptor()); |
| 568 | ASSERT(!holder->GetNamedInterceptor()->getter()->IsUndefined()); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 569 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 570 | // Check that the receiver isn't a smi. |
| 571 | __ BranchOnSmi(receiver, miss); |
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 maps haven't changed. |
| 574 | Register reg = |
| 575 | stub_compiler->CheckPrototypes(object, receiver, holder, |
| 576 | scratch1, scratch2, name, miss); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 577 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 578 | if (lookup->IsProperty() && lookup->IsCacheable()) { |
| 579 | compiler->CompileCacheable(masm, |
| 580 | stub_compiler, |
| 581 | receiver, |
| 582 | reg, |
| 583 | scratch1, |
| 584 | scratch2, |
| 585 | holder, |
| 586 | lookup, |
| 587 | name, |
| 588 | miss); |
| 589 | } else { |
| 590 | compiler->CompileRegular(masm, |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 591 | receiver, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 592 | reg, |
| 593 | scratch2, |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 594 | holder, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 595 | miss); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 596 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 597 | } |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 598 | |
| 599 | |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame^] | 600 | // Reserves space for the extra arguments to FastHandleApiCall in the |
| 601 | // caller's frame. |
| 602 | // |
| 603 | // These arguments are set by CheckPrototypes and GenerateFastApiCall. |
| 604 | static void ReserveSpaceForFastApiCall(MacroAssembler* masm, |
| 605 | Register scratch) { |
| 606 | __ mov(scratch, Operand(Smi::FromInt(0))); |
| 607 | __ push(scratch); |
| 608 | __ push(scratch); |
| 609 | __ push(scratch); |
| 610 | __ push(scratch); |
| 611 | } |
| 612 | |
| 613 | |
| 614 | // Undoes the effects of ReserveSpaceForFastApiCall. |
| 615 | static void FreeSpaceForFastApiCall(MacroAssembler* masm) { |
| 616 | __ Drop(4); |
| 617 | } |
| 618 | |
| 619 | |
| 620 | // Generates call to FastHandleApiCall builtin. |
| 621 | static void GenerateFastApiCall(MacroAssembler* masm, |
| 622 | const CallOptimization& optimization, |
| 623 | int argc) { |
| 624 | // Get the function and setup the context. |
| 625 | JSFunction* function = optimization.constant_function(); |
| 626 | __ mov(r7, Operand(Handle<JSFunction>(function))); |
| 627 | __ ldr(cp, FieldMemOperand(r7, JSFunction::kContextOffset)); |
| 628 | |
| 629 | // Pass the additional arguments FastHandleApiCall expects. |
| 630 | bool info_loaded = false; |
| 631 | Object* callback = optimization.api_call_info()->callback(); |
| 632 | if (Heap::InNewSpace(callback)) { |
| 633 | info_loaded = true; |
| 634 | __ Move(r0, Handle<CallHandlerInfo>(optimization.api_call_info())); |
| 635 | __ ldr(r6, FieldMemOperand(r0, CallHandlerInfo::kCallbackOffset)); |
| 636 | } else { |
| 637 | __ Move(r6, Handle<Object>(callback)); |
| 638 | } |
| 639 | Object* call_data = optimization.api_call_info()->data(); |
| 640 | if (Heap::InNewSpace(call_data)) { |
| 641 | if (!info_loaded) { |
| 642 | __ Move(r0, Handle<CallHandlerInfo>(optimization.api_call_info())); |
| 643 | } |
| 644 | __ ldr(r5, FieldMemOperand(r0, CallHandlerInfo::kDataOffset)); |
| 645 | } else { |
| 646 | __ Move(r5, Handle<Object>(call_data)); |
| 647 | } |
| 648 | |
| 649 | __ add(sp, sp, Operand(1 * kPointerSize)); |
| 650 | __ stm(ia, sp, r5.bit() | r6.bit() | r7.bit()); |
| 651 | __ sub(sp, sp, Operand(1 * kPointerSize)); |
| 652 | |
| 653 | // Set the number of arguments. |
| 654 | __ mov(r0, Operand(argc + 4)); |
| 655 | |
| 656 | // Jump to the fast api call builtin (tail call). |
| 657 | Handle<Code> code = Handle<Code>( |
| 658 | Builtins::builtin(Builtins::FastHandleApiCall)); |
| 659 | ParameterCount expected(0); |
| 660 | __ InvokeCode(code, expected, expected, |
| 661 | RelocInfo::CODE_TARGET, JUMP_FUNCTION); |
| 662 | } |
| 663 | |
| 664 | |
| 665 | class CallInterceptorCompiler BASE_EMBEDDED { |
| 666 | public: |
| 667 | CallInterceptorCompiler(StubCompiler* stub_compiler, |
| 668 | const ParameterCount& arguments, |
| 669 | Register name) |
| 670 | : stub_compiler_(stub_compiler), |
| 671 | arguments_(arguments), |
| 672 | name_(name) {} |
| 673 | |
| 674 | void Compile(MacroAssembler* masm, |
| 675 | JSObject* object, |
| 676 | JSObject* holder, |
| 677 | String* name, |
| 678 | LookupResult* lookup, |
| 679 | Register receiver, |
| 680 | Register scratch1, |
| 681 | Register scratch2, |
| 682 | Label* miss) { |
| 683 | ASSERT(holder->HasNamedInterceptor()); |
| 684 | ASSERT(!holder->GetNamedInterceptor()->getter()->IsUndefined()); |
| 685 | |
| 686 | // Check that the receiver isn't a smi. |
| 687 | __ BranchOnSmi(receiver, miss); |
| 688 | |
| 689 | CallOptimization optimization(lookup); |
| 690 | |
| 691 | if (optimization.is_constant_call()) { |
| 692 | CompileCacheable(masm, |
| 693 | object, |
| 694 | receiver, |
| 695 | scratch1, |
| 696 | scratch2, |
| 697 | holder, |
| 698 | lookup, |
| 699 | name, |
| 700 | optimization, |
| 701 | miss); |
| 702 | } else { |
| 703 | CompileRegular(masm, |
| 704 | object, |
| 705 | receiver, |
| 706 | scratch1, |
| 707 | scratch2, |
| 708 | name, |
| 709 | holder, |
| 710 | miss); |
| 711 | } |
| 712 | } |
| 713 | |
| 714 | private: |
| 715 | void CompileCacheable(MacroAssembler* masm, |
| 716 | JSObject* object, |
| 717 | Register receiver, |
| 718 | Register scratch1, |
| 719 | Register scratch2, |
| 720 | JSObject* holder_obj, |
| 721 | LookupResult* lookup, |
| 722 | String* name, |
| 723 | const CallOptimization& optimization, |
| 724 | Label* miss_label) { |
| 725 | ASSERT(optimization.is_constant_call()); |
| 726 | ASSERT(!lookup->holder()->IsGlobalObject()); |
| 727 | |
| 728 | int depth1 = kInvalidProtoDepth; |
| 729 | int depth2 = kInvalidProtoDepth; |
| 730 | bool can_do_fast_api_call = false; |
| 731 | if (optimization.is_simple_api_call() && |
| 732 | !lookup->holder()->IsGlobalObject()) { |
| 733 | depth1 = optimization.GetPrototypeDepthOfExpectedType(object, holder_obj); |
| 734 | if (depth1 == kInvalidProtoDepth) { |
| 735 | depth2 = optimization.GetPrototypeDepthOfExpectedType(holder_obj, |
| 736 | lookup->holder()); |
| 737 | } |
| 738 | can_do_fast_api_call = (depth1 != kInvalidProtoDepth) || |
| 739 | (depth2 != kInvalidProtoDepth); |
| 740 | } |
| 741 | |
| 742 | __ IncrementCounter(&Counters::call_const_interceptor, 1, |
| 743 | scratch1, scratch2); |
| 744 | |
| 745 | if (can_do_fast_api_call) { |
| 746 | __ IncrementCounter(&Counters::call_const_interceptor_fast_api, 1, |
| 747 | scratch1, scratch2); |
| 748 | ReserveSpaceForFastApiCall(masm, scratch1); |
| 749 | } |
| 750 | |
| 751 | Label miss_cleanup; |
| 752 | Label* miss = can_do_fast_api_call ? &miss_cleanup : miss_label; |
| 753 | Register holder = |
| 754 | stub_compiler_->CheckPrototypes(object, receiver, holder_obj, scratch1, |
| 755 | scratch2, name, depth1, miss); |
| 756 | |
| 757 | Label regular_invoke; |
| 758 | LoadWithInterceptor(masm, receiver, holder, holder_obj, scratch2, |
| 759 | ®ular_invoke); |
| 760 | |
| 761 | // Generate code for the failed interceptor case. |
| 762 | |
| 763 | // Check the lookup is still valid. |
| 764 | stub_compiler_->CheckPrototypes(holder_obj, receiver, |
| 765 | lookup->holder(), scratch1, |
| 766 | scratch2, name, depth2, miss); |
| 767 | |
| 768 | if (can_do_fast_api_call) { |
| 769 | GenerateFastApiCall(masm, optimization, arguments_.immediate()); |
| 770 | } else { |
| 771 | __ InvokeFunction(optimization.constant_function(), arguments_, |
| 772 | JUMP_FUNCTION); |
| 773 | } |
| 774 | |
| 775 | if (can_do_fast_api_call) { |
| 776 | __ bind(&miss_cleanup); |
| 777 | FreeSpaceForFastApiCall(masm); |
| 778 | __ b(miss_label); |
| 779 | } |
| 780 | |
| 781 | __ bind(®ular_invoke); |
| 782 | if (can_do_fast_api_call) { |
| 783 | FreeSpaceForFastApiCall(masm); |
| 784 | } |
| 785 | } |
| 786 | |
| 787 | void CompileRegular(MacroAssembler* masm, |
| 788 | JSObject* object, |
| 789 | Register receiver, |
| 790 | Register scratch1, |
| 791 | Register scratch2, |
| 792 | String* name, |
| 793 | JSObject* holder_obj, |
| 794 | Label* miss_label) { |
| 795 | Register holder = |
| 796 | stub_compiler_->CheckPrototypes(object, receiver, holder_obj, |
| 797 | scratch1, scratch2, name, |
| 798 | miss_label); |
| 799 | |
| 800 | // Call a runtime function to load the interceptor property. |
| 801 | __ EnterInternalFrame(); |
| 802 | // Save the name_ register across the call. |
| 803 | __ push(name_); |
| 804 | |
| 805 | PushInterceptorArguments(masm, |
| 806 | receiver, |
| 807 | holder, |
| 808 | name_, |
| 809 | holder_obj); |
| 810 | |
| 811 | __ CallExternalReference( |
| 812 | ExternalReference( |
| 813 | IC_Utility(IC::kLoadPropertyWithInterceptorForCall)), |
| 814 | 5); |
| 815 | |
| 816 | // Restore the name_ register. |
| 817 | __ pop(name_); |
| 818 | __ LeaveInternalFrame(); |
| 819 | } |
| 820 | |
| 821 | void LoadWithInterceptor(MacroAssembler* masm, |
| 822 | Register receiver, |
| 823 | Register holder, |
| 824 | JSObject* holder_obj, |
| 825 | Register scratch, |
| 826 | Label* interceptor_succeeded) { |
| 827 | __ EnterInternalFrame(); |
| 828 | __ Push(holder, name_); |
| 829 | |
| 830 | CompileCallLoadPropertyWithInterceptor(masm, |
| 831 | receiver, |
| 832 | holder, |
| 833 | name_, |
| 834 | holder_obj); |
| 835 | |
| 836 | __ pop(name_); // Restore the name. |
| 837 | __ pop(receiver); // Restore the holder. |
| 838 | __ LeaveInternalFrame(); |
| 839 | |
| 840 | // If interceptor returns no-result sentinel, call the constant function. |
| 841 | __ LoadRoot(scratch, Heap::kNoInterceptorResultSentinelRootIndex); |
| 842 | __ cmp(r0, scratch); |
| 843 | __ b(ne, interceptor_succeeded); |
| 844 | } |
| 845 | |
| 846 | StubCompiler* stub_compiler_; |
| 847 | const ParameterCount& arguments_; |
| 848 | Register name_; |
| 849 | }; |
| 850 | |
| 851 | |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 852 | // Generate code to check that a global property cell is empty. Create |
| 853 | // the property cell at compilation time if no cell exists for the |
| 854 | // property. |
| 855 | static Object* GenerateCheckPropertyCell(MacroAssembler* masm, |
| 856 | GlobalObject* global, |
| 857 | String* name, |
| 858 | Register scratch, |
| 859 | Label* miss) { |
| 860 | Object* probe = global->EnsurePropertyCell(name); |
| 861 | if (probe->IsFailure()) return probe; |
| 862 | JSGlobalPropertyCell* cell = JSGlobalPropertyCell::cast(probe); |
| 863 | ASSERT(cell->value()->IsTheHole()); |
| 864 | __ mov(scratch, Operand(Handle<Object>(cell))); |
| 865 | __ ldr(scratch, |
| 866 | FieldMemOperand(scratch, JSGlobalPropertyCell::kValueOffset)); |
| 867 | __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); |
| 868 | __ cmp(scratch, ip); |
| 869 | __ b(ne, miss); |
| 870 | return cell; |
| 871 | } |
| 872 | |
| 873 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 874 | #undef __ |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 875 | #define __ ACCESS_MASM(masm()) |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 876 | |
| 877 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 878 | Register StubCompiler::CheckPrototypes(JSObject* object, |
| 879 | Register object_reg, |
| 880 | JSObject* holder, |
| 881 | Register holder_reg, |
| 882 | Register scratch, |
| 883 | String* name, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 884 | int save_at_depth, |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 885 | Label* miss) { |
| 886 | // Check that the maps haven't changed. |
| 887 | Register result = |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame^] | 888 | masm()->CheckMaps(object, object_reg, holder, holder_reg, scratch, |
| 889 | save_at_depth, miss); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 890 | |
| 891 | // 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] | 892 | // that their maps haven't changed. We also need to check that the |
| 893 | // property cell for the property is still empty. |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 894 | while (object != holder) { |
| 895 | if (object->IsGlobalObject()) { |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 896 | Object* cell = GenerateCheckPropertyCell(masm(), |
| 897 | GlobalObject::cast(object), |
| 898 | name, |
| 899 | scratch, |
| 900 | miss); |
| 901 | if (cell->IsFailure()) { |
| 902 | set_failure(Failure::cast(cell)); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 903 | return result; |
| 904 | } |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 905 | } |
| 906 | object = JSObject::cast(object->GetPrototype()); |
| 907 | } |
| 908 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 909 | // Return the register containing the holder. |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 910 | return result; |
| 911 | } |
| 912 | |
| 913 | |
| 914 | void StubCompiler::GenerateLoadField(JSObject* object, |
| 915 | JSObject* holder, |
| 916 | Register receiver, |
| 917 | Register scratch1, |
| 918 | Register scratch2, |
| 919 | int index, |
| 920 | String* name, |
| 921 | Label* miss) { |
| 922 | // Check that the receiver isn't a smi. |
| 923 | __ tst(receiver, Operand(kSmiTagMask)); |
| 924 | __ b(eq, miss); |
| 925 | |
| 926 | // Check that the maps haven't changed. |
| 927 | Register reg = |
| 928 | CheckPrototypes(object, receiver, holder, scratch1, scratch2, name, miss); |
| 929 | GenerateFastPropertyLoad(masm(), r0, reg, holder, index); |
| 930 | __ Ret(); |
| 931 | } |
| 932 | |
| 933 | |
| 934 | void StubCompiler::GenerateLoadConstant(JSObject* object, |
| 935 | JSObject* holder, |
| 936 | Register receiver, |
| 937 | Register scratch1, |
| 938 | Register scratch2, |
| 939 | Object* value, |
| 940 | String* name, |
| 941 | Label* miss) { |
| 942 | // Check that the receiver isn't a smi. |
| 943 | __ tst(receiver, Operand(kSmiTagMask)); |
| 944 | __ b(eq, miss); |
| 945 | |
| 946 | // Check that the maps haven't changed. |
| 947 | Register reg = |
| 948 | CheckPrototypes(object, receiver, holder, scratch1, scratch2, name, miss); |
| 949 | |
| 950 | // Return the constant value. |
| 951 | __ mov(r0, Operand(Handle<Object>(value))); |
| 952 | __ Ret(); |
| 953 | } |
| 954 | |
| 955 | |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 956 | bool StubCompiler::GenerateLoadCallback(JSObject* object, |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 957 | JSObject* holder, |
| 958 | Register receiver, |
| 959 | Register name_reg, |
| 960 | Register scratch1, |
| 961 | Register scratch2, |
| 962 | AccessorInfo* callback, |
| 963 | String* name, |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 964 | Label* miss, |
| 965 | Failure** failure) { |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 966 | // Check that the receiver isn't a smi. |
| 967 | __ tst(receiver, Operand(kSmiTagMask)); |
| 968 | __ b(eq, miss); |
| 969 | |
| 970 | // Check that the maps haven't changed. |
| 971 | Register reg = |
| 972 | CheckPrototypes(object, receiver, holder, scratch1, scratch2, name, miss); |
| 973 | |
| 974 | // Push the arguments on the JS stack of the caller. |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 975 | __ push(receiver); // Receiver. |
| 976 | __ push(reg); // Holder. |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 977 | __ mov(ip, Operand(Handle<AccessorInfo>(callback))); // callback data |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 978 | __ ldr(reg, FieldMemOperand(ip, AccessorInfo::kDataOffset)); |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 979 | __ Push(ip, reg, name_reg); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 980 | |
| 981 | // Do tail-call to the runtime system. |
| 982 | ExternalReference load_callback_property = |
| 983 | ExternalReference(IC_Utility(IC::kLoadCallbackProperty)); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 984 | __ TailCallExternalReference(load_callback_property, 5, 1); |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 985 | |
| 986 | return true; |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 987 | } |
| 988 | |
| 989 | |
| 990 | void StubCompiler::GenerateLoadInterceptor(JSObject* object, |
| 991 | JSObject* holder, |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 992 | LookupResult* lookup, |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 993 | Register receiver, |
| 994 | Register name_reg, |
| 995 | Register scratch1, |
| 996 | Register scratch2, |
| 997 | String* name, |
| 998 | Label* miss) { |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 999 | LoadInterceptorCompiler compiler(name_reg); |
| 1000 | CompileLoadInterceptor(&compiler, |
| 1001 | this, |
| 1002 | masm(), |
| 1003 | object, |
| 1004 | holder, |
| 1005 | name, |
| 1006 | lookup, |
| 1007 | receiver, |
| 1008 | scratch1, |
| 1009 | scratch2, |
| 1010 | miss); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1011 | } |
| 1012 | |
| 1013 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1014 | Object* StubCompiler::CompileLazyCompile(Code::Flags flags) { |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 1015 | // ----------- S t a t e ------------- |
| 1016 | // -- r1: function |
| 1017 | // -- lr: return address |
| 1018 | // ----------------------------------- |
| 1019 | |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 1020 | // Enter an internal frame. |
| 1021 | __ EnterInternalFrame(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1022 | |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 1023 | // Preserve the function. |
| 1024 | __ push(r1); |
| 1025 | |
| 1026 | // Push the function on the stack as the argument to the runtime function. |
| 1027 | __ push(r1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1028 | __ CallRuntime(Runtime::kLazyCompile, 1); |
| 1029 | |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 1030 | // Calculate the entry point. |
| 1031 | __ add(r2, r0, Operand(Code::kHeaderSize - kHeapObjectTag)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1032 | |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 1033 | // Restore saved function. |
| 1034 | __ pop(r1); |
| 1035 | |
| 1036 | // Tear down temporary frame. |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 1037 | __ LeaveInternalFrame(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1038 | |
| 1039 | // Do a tail-call of the compiled function. |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 1040 | __ Jump(r2); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1041 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1042 | return GetCodeWithFlags(flags, "LazyCompileStub"); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1043 | } |
| 1044 | |
| 1045 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1046 | Object* CallStubCompiler::CompileCallField(JSObject* object, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1047 | JSObject* holder, |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1048 | int index, |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1049 | String* name) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1050 | // ----------- S t a t e ------------- |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1051 | // -- r2 : name |
| 1052 | // -- lr : return address |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1053 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1054 | Label miss; |
| 1055 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 1056 | const int argc = arguments().immediate(); |
| 1057 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 1058 | // Get the receiver of the function from the stack into r0. |
| 1059 | __ ldr(r0, MemOperand(sp, argc * kPointerSize)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1060 | // Check that the receiver isn't a smi. |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 1061 | __ tst(r0, Operand(kSmiTagMask)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1062 | __ b(eq, &miss); |
| 1063 | |
| 1064 | // Do the right check and compute the holder register. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1065 | Register reg = CheckPrototypes(object, r0, holder, r1, r3, name, &miss); |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 1066 | GenerateFastPropertyLoad(masm(), r1, reg, holder, index); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1067 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1068 | GenerateCallFunction(masm(), object, arguments(), &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1069 | |
| 1070 | // Handle call cache miss. |
| 1071 | __ bind(&miss); |
| 1072 | Handle<Code> ic = ComputeCallMiss(arguments().immediate()); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 1073 | __ Jump(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1074 | |
| 1075 | // Return the generated code. |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1076 | return GetCode(FIELD, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1077 | } |
| 1078 | |
| 1079 | |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1080 | Object* CallStubCompiler::CompileArrayPushCall(Object* object, |
| 1081 | JSObject* holder, |
| 1082 | JSFunction* function, |
| 1083 | String* name, |
| 1084 | CheckType check) { |
| 1085 | // ----------- S t a t e ------------- |
| 1086 | // -- r2 : name |
| 1087 | // -- lr : return address |
| 1088 | // ----------------------------------- |
| 1089 | |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame^] | 1090 | // If object is not an array, bail out to regular call. |
| 1091 | if (!object->IsJSArray()) { |
| 1092 | return Heap::undefined_value(); |
| 1093 | } |
| 1094 | |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1095 | // TODO(639): faster implementation. |
| 1096 | ASSERT(check == RECEIVER_MAP_CHECK); |
| 1097 | |
| 1098 | Label miss; |
| 1099 | |
| 1100 | // Get the receiver from the stack |
| 1101 | const int argc = arguments().immediate(); |
| 1102 | __ ldr(r1, MemOperand(sp, argc * kPointerSize)); |
| 1103 | |
| 1104 | // Check that the receiver isn't a smi. |
| 1105 | __ tst(r1, Operand(kSmiTagMask)); |
| 1106 | __ b(eq, &miss); |
| 1107 | |
| 1108 | // Check that the maps haven't changed. |
| 1109 | CheckPrototypes(JSObject::cast(object), r1, holder, r3, r0, name, &miss); |
| 1110 | |
| 1111 | if (object->IsGlobalObject()) { |
| 1112 | __ ldr(r3, FieldMemOperand(r1, GlobalObject::kGlobalReceiverOffset)); |
| 1113 | __ str(r3, MemOperand(sp, argc * kPointerSize)); |
| 1114 | } |
| 1115 | |
| 1116 | __ TailCallExternalReference(ExternalReference(Builtins::c_ArrayPush), |
| 1117 | argc + 1, |
| 1118 | 1); |
| 1119 | |
| 1120 | // Handle call cache miss. |
| 1121 | __ bind(&miss); |
| 1122 | Handle<Code> ic = ComputeCallMiss(arguments().immediate()); |
| 1123 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 1124 | |
| 1125 | // Return the generated code. |
| 1126 | String* function_name = NULL; |
| 1127 | if (function->shared()->name()->IsString()) { |
| 1128 | function_name = String::cast(function->shared()->name()); |
| 1129 | } |
| 1130 | return GetCode(CONSTANT_FUNCTION, function_name); |
| 1131 | } |
| 1132 | |
| 1133 | |
| 1134 | Object* CallStubCompiler::CompileArrayPopCall(Object* object, |
| 1135 | JSObject* holder, |
| 1136 | JSFunction* function, |
| 1137 | String* name, |
| 1138 | CheckType check) { |
| 1139 | // ----------- S t a t e ------------- |
| 1140 | // -- r2 : name |
| 1141 | // -- lr : return address |
| 1142 | // ----------------------------------- |
| 1143 | |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame^] | 1144 | // If object is not an array, bail out to regular call. |
| 1145 | if (!object->IsJSArray()) { |
| 1146 | return Heap::undefined_value(); |
| 1147 | } |
| 1148 | |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1149 | // TODO(642): faster implementation. |
| 1150 | ASSERT(check == RECEIVER_MAP_CHECK); |
| 1151 | |
| 1152 | Label miss; |
| 1153 | |
| 1154 | // Get the receiver from the stack |
| 1155 | const int argc = arguments().immediate(); |
| 1156 | __ ldr(r1, MemOperand(sp, argc * kPointerSize)); |
| 1157 | |
| 1158 | // Check that the receiver isn't a smi. |
| 1159 | __ tst(r1, Operand(kSmiTagMask)); |
| 1160 | __ b(eq, &miss); |
| 1161 | |
| 1162 | // Check that the maps haven't changed. |
| 1163 | CheckPrototypes(JSObject::cast(object), r1, holder, r3, r0, name, &miss); |
| 1164 | |
| 1165 | if (object->IsGlobalObject()) { |
| 1166 | __ ldr(r3, FieldMemOperand(r1, GlobalObject::kGlobalReceiverOffset)); |
| 1167 | __ str(r3, MemOperand(sp, argc * kPointerSize)); |
| 1168 | } |
| 1169 | |
| 1170 | __ TailCallExternalReference(ExternalReference(Builtins::c_ArrayPop), |
| 1171 | argc + 1, |
| 1172 | 1); |
| 1173 | |
| 1174 | // Handle call cache miss. |
| 1175 | __ bind(&miss); |
| 1176 | Handle<Code> ic = ComputeCallMiss(arguments().immediate()); |
| 1177 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 1178 | |
| 1179 | // Return the generated code. |
| 1180 | String* function_name = NULL; |
| 1181 | if (function->shared()->name()->IsString()) { |
| 1182 | function_name = String::cast(function->shared()->name()); |
| 1183 | } |
| 1184 | return GetCode(CONSTANT_FUNCTION, function_name); |
| 1185 | } |
| 1186 | |
| 1187 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1188 | Object* CallStubCompiler::CompileCallConstant(Object* object, |
| 1189 | JSObject* holder, |
| 1190 | JSFunction* function, |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1191 | String* name, |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1192 | CheckType check) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1193 | // ----------- S t a t e ------------- |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1194 | // -- r2 : name |
| 1195 | // -- lr : return address |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1196 | // ----------------------------------- |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1197 | SharedFunctionInfo* function_info = function->shared(); |
| 1198 | if (function_info->HasCustomCallGenerator()) { |
| 1199 | CustomCallGenerator generator = |
| 1200 | ToCData<CustomCallGenerator>(function_info->function_data()); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame^] | 1201 | Object* result = generator(this, object, holder, function, name, check); |
| 1202 | // undefined means bail out to regular compiler. |
| 1203 | if (!result->IsUndefined()) { |
| 1204 | return result; |
| 1205 | } |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1206 | } |
| 1207 | |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame^] | 1208 | Label miss_in_smi_check; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1209 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 1210 | // Get the receiver from the stack |
| 1211 | const int argc = arguments().immediate(); |
| 1212 | __ ldr(r1, MemOperand(sp, argc * kPointerSize)); |
| 1213 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1214 | // Check that the receiver isn't a smi. |
| 1215 | if (check != NUMBER_CHECK) { |
| 1216 | __ tst(r1, Operand(kSmiTagMask)); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame^] | 1217 | __ b(eq, &miss_in_smi_check); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1218 | } |
| 1219 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 1220 | // Make sure that it's okay not to patch the on stack receiver |
| 1221 | // unless we're doing a receiver map check. |
| 1222 | ASSERT(!object->IsGlobalObject() || check == RECEIVER_MAP_CHECK); |
| 1223 | |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame^] | 1224 | CallOptimization optimization(function); |
| 1225 | int depth = kInvalidProtoDepth; |
| 1226 | Label miss; |
| 1227 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1228 | switch (check) { |
| 1229 | case RECEIVER_MAP_CHECK: |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame^] | 1230 | __ IncrementCounter(&Counters::call_const, 1, r0, r3); |
| 1231 | |
| 1232 | if (optimization.is_simple_api_call() && !object->IsGlobalObject()) { |
| 1233 | depth = optimization.GetPrototypeDepthOfExpectedType( |
| 1234 | JSObject::cast(object), holder); |
| 1235 | } |
| 1236 | |
| 1237 | if (depth != kInvalidProtoDepth) { |
| 1238 | __ IncrementCounter(&Counters::call_const_fast_api, 1, r0, r3); |
| 1239 | ReserveSpaceForFastApiCall(masm(), r0); |
| 1240 | } |
| 1241 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1242 | // Check that the maps haven't changed. |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame^] | 1243 | CheckPrototypes(JSObject::cast(object), r1, holder, r0, r3, name, |
| 1244 | depth, &miss); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 1245 | |
| 1246 | // Patch the receiver on the stack with the global proxy if |
| 1247 | // necessary. |
| 1248 | if (object->IsGlobalObject()) { |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame^] | 1249 | ASSERT(depth == kInvalidProtoDepth); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 1250 | __ ldr(r3, FieldMemOperand(r1, GlobalObject::kGlobalReceiverOffset)); |
| 1251 | __ str(r3, MemOperand(sp, argc * kPointerSize)); |
| 1252 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1253 | break; |
| 1254 | |
| 1255 | case STRING_CHECK: |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1256 | if (!function->IsBuiltin()) { |
| 1257 | // Calling non-builtins with a value as receiver requires boxing. |
| 1258 | __ jmp(&miss); |
| 1259 | } else { |
| 1260 | // 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] | 1261 | __ CompareObjectType(r1, r3, r3, FIRST_NONSTRING_TYPE); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1262 | __ b(hs, &miss); |
| 1263 | // Check that the maps starting from the prototype haven't changed. |
| 1264 | GenerateLoadGlobalFunctionPrototype(masm(), |
| 1265 | Context::STRING_FUNCTION_INDEX, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1266 | r0); |
| 1267 | CheckPrototypes(JSObject::cast(object->GetPrototype()), r0, holder, r3, |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1268 | r1, name, &miss); |
| 1269 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1270 | break; |
| 1271 | |
| 1272 | case NUMBER_CHECK: { |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1273 | if (!function->IsBuiltin()) { |
| 1274 | // Calling non-builtins with a value as receiver requires boxing. |
| 1275 | __ jmp(&miss); |
| 1276 | } else { |
| 1277 | Label fast; |
| 1278 | // Check that the object is a smi or a heap number. |
| 1279 | __ tst(r1, Operand(kSmiTagMask)); |
| 1280 | __ b(eq, &fast); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1281 | __ CompareObjectType(r1, r0, r0, HEAP_NUMBER_TYPE); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1282 | __ b(ne, &miss); |
| 1283 | __ bind(&fast); |
| 1284 | // Check that the maps starting from the prototype haven't changed. |
| 1285 | GenerateLoadGlobalFunctionPrototype(masm(), |
| 1286 | Context::NUMBER_FUNCTION_INDEX, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1287 | r0); |
| 1288 | CheckPrototypes(JSObject::cast(object->GetPrototype()), r0, holder, r3, |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1289 | r1, name, &miss); |
| 1290 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1291 | break; |
| 1292 | } |
| 1293 | |
| 1294 | case BOOLEAN_CHECK: { |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1295 | if (!function->IsBuiltin()) { |
| 1296 | // Calling non-builtins with a value as receiver requires boxing. |
| 1297 | __ jmp(&miss); |
| 1298 | } else { |
| 1299 | Label fast; |
| 1300 | // Check that the object is a boolean. |
| 1301 | __ LoadRoot(ip, Heap::kTrueValueRootIndex); |
| 1302 | __ cmp(r1, ip); |
| 1303 | __ b(eq, &fast); |
| 1304 | __ LoadRoot(ip, Heap::kFalseValueRootIndex); |
| 1305 | __ cmp(r1, ip); |
| 1306 | __ b(ne, &miss); |
| 1307 | __ bind(&fast); |
| 1308 | // Check that the maps starting from the prototype haven't changed. |
| 1309 | GenerateLoadGlobalFunctionPrototype(masm(), |
| 1310 | Context::BOOLEAN_FUNCTION_INDEX, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1311 | r0); |
| 1312 | CheckPrototypes(JSObject::cast(object->GetPrototype()), r0, holder, r3, |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1313 | r1, name, &miss); |
| 1314 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1315 | break; |
| 1316 | } |
| 1317 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1318 | default: |
| 1319 | UNREACHABLE(); |
| 1320 | } |
| 1321 | |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame^] | 1322 | if (depth != kInvalidProtoDepth) { |
| 1323 | GenerateFastApiCall(masm(), optimization, argc); |
| 1324 | } else { |
| 1325 | __ InvokeFunction(function, arguments(), JUMP_FUNCTION); |
| 1326 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1327 | |
| 1328 | // Handle call cache miss. |
| 1329 | __ bind(&miss); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame^] | 1330 | if (depth != kInvalidProtoDepth) { |
| 1331 | FreeSpaceForFastApiCall(masm()); |
| 1332 | } |
| 1333 | |
| 1334 | __ bind(&miss_in_smi_check); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1335 | Handle<Code> ic = ComputeCallMiss(arguments().immediate()); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 1336 | __ Jump(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1337 | |
| 1338 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1339 | String* function_name = NULL; |
| 1340 | if (function->shared()->name()->IsString()) { |
| 1341 | function_name = String::cast(function->shared()->name()); |
| 1342 | } |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1343 | return GetCode(CONSTANT_FUNCTION, function_name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1344 | } |
| 1345 | |
| 1346 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1347 | Object* CallStubCompiler::CompileCallInterceptor(JSObject* object, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1348 | JSObject* holder, |
| 1349 | String* name) { |
| 1350 | // ----------- S t a t e ------------- |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1351 | // -- r2 : name |
| 1352 | // -- lr : return address |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1353 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1354 | |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame^] | 1355 | Label miss; |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1356 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1357 | // Get the number of arguments. |
| 1358 | const int argc = arguments().immediate(); |
| 1359 | |
| 1360 | LookupResult lookup; |
| 1361 | LookupPostInterceptor(holder, name, &lookup); |
| 1362 | |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame^] | 1363 | // Get the receiver from the stack. |
| 1364 | __ ldr(r1, MemOperand(sp, argc * kPointerSize)); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1365 | |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame^] | 1366 | CallInterceptorCompiler compiler(this, arguments(), r2); |
| 1367 | compiler.Compile(masm(), |
| 1368 | object, |
| 1369 | holder, |
| 1370 | name, |
| 1371 | &lookup, |
| 1372 | r1, |
| 1373 | r3, |
| 1374 | r4, |
| 1375 | &miss); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1376 | |
| 1377 | // Move returned value, the function to call, to r1. |
| 1378 | __ mov(r1, r0); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1379 | // Restore receiver. |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame^] | 1380 | __ ldr(r0, MemOperand(sp, argc * kPointerSize)); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1381 | |
| 1382 | GenerateCallFunction(masm(), object, arguments(), &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1383 | |
| 1384 | // Handle call cache miss. |
| 1385 | __ bind(&miss); |
| 1386 | Handle<Code> ic = ComputeCallMiss(arguments().immediate()); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 1387 | __ Jump(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1388 | |
| 1389 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1390 | return GetCode(INTERCEPTOR, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1391 | } |
| 1392 | |
| 1393 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1394 | Object* CallStubCompiler::CompileCallGlobal(JSObject* object, |
| 1395 | GlobalObject* holder, |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1396 | JSGlobalPropertyCell* cell, |
| 1397 | JSFunction* function, |
| 1398 | String* name) { |
| 1399 | // ----------- S t a t e ------------- |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1400 | // -- r2 : name |
| 1401 | // -- lr : return address |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1402 | // ----------------------------------- |
| 1403 | Label miss; |
| 1404 | |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1405 | // Get the number of arguments. |
| 1406 | const int argc = arguments().immediate(); |
| 1407 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1408 | // Get the receiver from the stack. |
| 1409 | __ ldr(r0, MemOperand(sp, argc * kPointerSize)); |
| 1410 | |
| 1411 | // If the object is the holder then we know that it's a global |
| 1412 | // object which can only happen for contextual calls. In this case, |
| 1413 | // the receiver cannot be a smi. |
| 1414 | if (object != holder) { |
| 1415 | __ tst(r0, Operand(kSmiTagMask)); |
| 1416 | __ b(eq, &miss); |
| 1417 | } |
| 1418 | |
| 1419 | // Check that the maps haven't changed. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1420 | CheckPrototypes(object, r0, holder, r3, r1, name, &miss); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1421 | |
| 1422 | // Get the value from the cell. |
| 1423 | __ mov(r3, Operand(Handle<JSGlobalPropertyCell>(cell))); |
| 1424 | __ ldr(r1, FieldMemOperand(r3, JSGlobalPropertyCell::kValueOffset)); |
| 1425 | |
| 1426 | // Check that the cell contains the same function. |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 1427 | if (Heap::InNewSpace(function)) { |
| 1428 | // We can't embed a pointer to a function in new space so we have |
| 1429 | // to verify that the shared function info is unchanged. This has |
| 1430 | // the nice side effect that multiple closures based on the same |
| 1431 | // function can all use this call IC. Before we load through the |
| 1432 | // function, we have to verify that it still is a function. |
| 1433 | __ tst(r1, Operand(kSmiTagMask)); |
| 1434 | __ b(eq, &miss); |
| 1435 | __ CompareObjectType(r1, r3, r3, JS_FUNCTION_TYPE); |
| 1436 | __ b(ne, &miss); |
| 1437 | |
| 1438 | // Check the shared function info. Make sure it hasn't changed. |
| 1439 | __ mov(r3, Operand(Handle<SharedFunctionInfo>(function->shared()))); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1440 | __ ldr(r4, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); |
| 1441 | __ cmp(r4, r3); |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 1442 | __ b(ne, &miss); |
| 1443 | } else { |
| 1444 | __ cmp(r1, Operand(Handle<JSFunction>(function))); |
| 1445 | __ b(ne, &miss); |
| 1446 | } |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1447 | |
| 1448 | // Patch the receiver on the stack with the global proxy if |
| 1449 | // necessary. |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1450 | if (object->IsGlobalObject()) { |
| 1451 | __ ldr(r3, FieldMemOperand(r0, GlobalObject::kGlobalReceiverOffset)); |
| 1452 | __ str(r3, MemOperand(sp, argc * kPointerSize)); |
| 1453 | } |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1454 | |
| 1455 | // Setup the context (function already in r1). |
| 1456 | __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); |
| 1457 | |
| 1458 | // Jump to the cached code (tail call). |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 1459 | __ IncrementCounter(&Counters::call_global_inline, 1, r3, r4); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1460 | ASSERT(function->is_compiled()); |
| 1461 | Handle<Code> code(function->code()); |
| 1462 | ParameterCount expected(function->shared()->formal_parameter_count()); |
| 1463 | __ InvokeCode(code, expected, arguments(), |
| 1464 | RelocInfo::CODE_TARGET, JUMP_FUNCTION); |
| 1465 | |
| 1466 | // Handle call cache miss. |
| 1467 | __ bind(&miss); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1468 | __ IncrementCounter(&Counters::call_global_inline_miss, 1, r1, r3); |
| 1469 | Handle<Code> ic = ComputeCallMiss(arguments().immediate()); |
| 1470 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 1471 | |
| 1472 | // Return the generated code. |
| 1473 | return GetCode(NORMAL, name); |
| 1474 | } |
| 1475 | |
| 1476 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1477 | Object* StoreStubCompiler::CompileStoreField(JSObject* object, |
| 1478 | int index, |
| 1479 | Map* transition, |
| 1480 | String* name) { |
| 1481 | // ----------- S t a t e ------------- |
| 1482 | // -- r0 : value |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1483 | // -- r1 : receiver |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1484 | // -- r2 : name |
| 1485 | // -- lr : return address |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1486 | // ----------------------------------- |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1487 | Label miss; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1488 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1489 | GenerateStoreField(masm(), |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1490 | object, |
| 1491 | index, |
| 1492 | transition, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1493 | r1, r2, r3, |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1494 | &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1495 | __ bind(&miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1496 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss)); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 1497 | __ Jump(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1498 | |
| 1499 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1500 | return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1501 | } |
| 1502 | |
| 1503 | |
| 1504 | Object* StoreStubCompiler::CompileStoreCallback(JSObject* object, |
| 1505 | AccessorInfo* callback, |
| 1506 | String* name) { |
| 1507 | // ----------- S t a t e ------------- |
| 1508 | // -- r0 : value |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1509 | // -- r1 : receiver |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1510 | // -- r2 : name |
| 1511 | // -- lr : return address |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1512 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1513 | Label miss; |
| 1514 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1515 | // Check that the object isn't a smi. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1516 | __ tst(r1, Operand(kSmiTagMask)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1517 | __ b(eq, &miss); |
| 1518 | |
| 1519 | // Check that the map of the object hasn't changed. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1520 | __ ldr(r3, FieldMemOperand(r1, HeapObject::kMapOffset)); |
| 1521 | __ cmp(r3, Operand(Handle<Map>(object->map()))); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1522 | __ b(ne, &miss); |
| 1523 | |
| 1524 | // Perform global security token check if needed. |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 1525 | if (object->IsJSGlobalProxy()) { |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1526 | __ CheckAccessGlobalProxy(r1, r3, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1527 | } |
| 1528 | |
| 1529 | // Stub never generated for non-global objects that require access |
| 1530 | // checks. |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 1531 | ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1532 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1533 | __ push(r1); // receiver |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1534 | __ mov(ip, Operand(Handle<AccessorInfo>(callback))); // callback info |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 1535 | __ Push(ip, r2, r0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1536 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 1537 | // Do tail-call to the runtime system. |
| 1538 | ExternalReference store_callback_property = |
| 1539 | ExternalReference(IC_Utility(IC::kStoreCallbackProperty)); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 1540 | __ TailCallExternalReference(store_callback_property, 4, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1541 | |
| 1542 | // Handle store cache miss. |
| 1543 | __ bind(&miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1544 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss)); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 1545 | __ Jump(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1546 | |
| 1547 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1548 | return GetCode(CALLBACKS, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1549 | } |
| 1550 | |
| 1551 | |
| 1552 | Object* StoreStubCompiler::CompileStoreInterceptor(JSObject* receiver, |
| 1553 | String* name) { |
| 1554 | // ----------- S t a t e ------------- |
| 1555 | // -- r0 : value |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1556 | // -- r1 : receiver |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1557 | // -- r2 : name |
| 1558 | // -- lr : return address |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1559 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1560 | Label miss; |
| 1561 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1562 | // Check that the object isn't a smi. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1563 | __ tst(r1, Operand(kSmiTagMask)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1564 | __ b(eq, &miss); |
| 1565 | |
| 1566 | // Check that the map of the object hasn't changed. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1567 | __ ldr(r3, FieldMemOperand(r1, HeapObject::kMapOffset)); |
| 1568 | __ cmp(r3, Operand(Handle<Map>(receiver->map()))); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1569 | __ b(ne, &miss); |
| 1570 | |
| 1571 | // Perform global security token check if needed. |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 1572 | if (receiver->IsJSGlobalProxy()) { |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1573 | __ CheckAccessGlobalProxy(r1, r3, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1574 | } |
| 1575 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1576 | // Stub is never generated for non-global objects that require access |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1577 | // checks. |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 1578 | ASSERT(receiver->IsJSGlobalProxy() || !receiver->IsAccessCheckNeeded()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1579 | |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 1580 | __ Push(r1, r2, r0); // Receiver, name, value. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1581 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 1582 | // Do tail-call to the runtime system. |
| 1583 | ExternalReference store_ic_property = |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1584 | ExternalReference(IC_Utility(IC::kStoreInterceptorProperty)); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 1585 | __ TailCallExternalReference(store_ic_property, 3, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1586 | |
| 1587 | // Handle store cache miss. |
| 1588 | __ bind(&miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1589 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss)); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 1590 | __ Jump(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1591 | |
| 1592 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1593 | return GetCode(INTERCEPTOR, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1594 | } |
| 1595 | |
| 1596 | |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1597 | Object* StoreStubCompiler::CompileStoreGlobal(GlobalObject* object, |
| 1598 | JSGlobalPropertyCell* cell, |
| 1599 | String* name) { |
| 1600 | // ----------- S t a t e ------------- |
| 1601 | // -- r0 : value |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1602 | // -- r1 : receiver |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1603 | // -- r2 : name |
| 1604 | // -- lr : return address |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1605 | // ----------------------------------- |
| 1606 | Label miss; |
| 1607 | |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1608 | // Check that the map of the global has not changed. |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1609 | __ ldr(r3, FieldMemOperand(r1, HeapObject::kMapOffset)); |
| 1610 | __ cmp(r3, Operand(Handle<Map>(object->map()))); |
| 1611 | __ b(ne, &miss); |
| 1612 | |
| 1613 | // Store the value in the cell. |
| 1614 | __ mov(r2, Operand(Handle<JSGlobalPropertyCell>(cell))); |
| 1615 | __ str(r0, FieldMemOperand(r2, JSGlobalPropertyCell::kValueOffset)); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1616 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1617 | __ IncrementCounter(&Counters::named_store_global_inline, 1, r4, r3); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1618 | __ Ret(); |
| 1619 | |
| 1620 | // Handle store cache miss. |
| 1621 | __ bind(&miss); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1622 | __ IncrementCounter(&Counters::named_store_global_inline_miss, 1, r4, r3); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1623 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss)); |
| 1624 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 1625 | |
| 1626 | // Return the generated code. |
| 1627 | return GetCode(NORMAL, name); |
| 1628 | } |
| 1629 | |
| 1630 | |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 1631 | Object* LoadStubCompiler::CompileLoadNonexistent(String* name, |
| 1632 | JSObject* object, |
| 1633 | JSObject* last) { |
| 1634 | // ----------- S t a t e ------------- |
| 1635 | // -- r2 : name |
| 1636 | // -- lr : return address |
| 1637 | // -- [sp] : receiver |
| 1638 | // ----------------------------------- |
| 1639 | Label miss; |
| 1640 | |
| 1641 | // Load receiver. |
| 1642 | __ ldr(r0, MemOperand(sp, 0)); |
| 1643 | |
| 1644 | // Check that receiver is not a smi. |
| 1645 | __ tst(r0, Operand(kSmiTagMask)); |
| 1646 | __ b(eq, &miss); |
| 1647 | |
| 1648 | // Check the maps of the full prototype chain. |
| 1649 | CheckPrototypes(object, r0, last, r3, r1, name, &miss); |
| 1650 | |
| 1651 | // If the last object in the prototype chain is a global object, |
| 1652 | // check that the global property cell is empty. |
| 1653 | if (last->IsGlobalObject()) { |
| 1654 | Object* cell = GenerateCheckPropertyCell(masm(), |
| 1655 | GlobalObject::cast(last), |
| 1656 | name, |
| 1657 | r1, |
| 1658 | &miss); |
| 1659 | if (cell->IsFailure()) return cell; |
| 1660 | } |
| 1661 | |
| 1662 | // Return undefined if maps of the full prototype chain are still the |
| 1663 | // same and no global property with this name contains a value. |
| 1664 | __ LoadRoot(r0, Heap::kUndefinedValueRootIndex); |
| 1665 | __ Ret(); |
| 1666 | |
| 1667 | __ bind(&miss); |
| 1668 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 1669 | |
| 1670 | // Return the generated code. |
| 1671 | return GetCode(NONEXISTENT, Heap::empty_string()); |
| 1672 | } |
| 1673 | |
| 1674 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1675 | Object* LoadStubCompiler::CompileLoadField(JSObject* object, |
| 1676 | JSObject* holder, |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1677 | int index, |
| 1678 | String* name) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1679 | // ----------- S t a t e ------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1680 | // -- r2 : name |
| 1681 | // -- lr : return address |
| 1682 | // -- [sp] : receiver |
| 1683 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1684 | Label miss; |
| 1685 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 1686 | __ ldr(r0, MemOperand(sp, 0)); |
| 1687 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1688 | GenerateLoadField(object, holder, r0, r3, r1, index, name, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1689 | __ bind(&miss); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1690 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1691 | |
| 1692 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1693 | return GetCode(FIELD, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1694 | } |
| 1695 | |
| 1696 | |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 1697 | Object* LoadStubCompiler::CompileLoadCallback(String* name, |
| 1698 | JSObject* object, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1699 | JSObject* holder, |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 1700 | AccessorInfo* callback) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1701 | // ----------- S t a t e ------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1702 | // -- r2 : name |
| 1703 | // -- lr : return address |
| 1704 | // -- [sp] : receiver |
| 1705 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1706 | Label miss; |
| 1707 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 1708 | __ ldr(r0, MemOperand(sp, 0)); |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 1709 | Failure* failure = Failure::InternalError(); |
| 1710 | bool success = GenerateLoadCallback(object, holder, r0, r2, r3, r1, |
| 1711 | callback, name, &miss, &failure); |
| 1712 | if (!success) return failure; |
| 1713 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1714 | __ bind(&miss); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1715 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1716 | |
| 1717 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1718 | return GetCode(CALLBACKS, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1719 | } |
| 1720 | |
| 1721 | |
| 1722 | Object* LoadStubCompiler::CompileLoadConstant(JSObject* object, |
| 1723 | JSObject* holder, |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1724 | Object* value, |
| 1725 | String* name) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1726 | // ----------- S t a t e ------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1727 | // -- r2 : name |
| 1728 | // -- lr : return address |
| 1729 | // -- [sp] : receiver |
| 1730 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1731 | Label miss; |
| 1732 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 1733 | __ ldr(r0, MemOperand(sp, 0)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1734 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1735 | GenerateLoadConstant(object, holder, r0, r3, r1, value, name, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1736 | __ bind(&miss); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1737 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1738 | |
| 1739 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1740 | return GetCode(CONSTANT_FUNCTION, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1741 | } |
| 1742 | |
| 1743 | |
| 1744 | Object* LoadStubCompiler::CompileLoadInterceptor(JSObject* object, |
| 1745 | JSObject* holder, |
| 1746 | String* name) { |
| 1747 | // ----------- S t a t e ------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1748 | // -- r2 : name |
| 1749 | // -- lr : return address |
| 1750 | // -- [sp] : receiver |
| 1751 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1752 | Label miss; |
| 1753 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 1754 | __ ldr(r0, MemOperand(sp, 0)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1755 | |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1756 | LookupResult lookup; |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1757 | LookupPostInterceptor(holder, name, &lookup); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1758 | GenerateLoadInterceptor(object, |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 1759 | holder, |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1760 | &lookup, |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 1761 | r0, |
| 1762 | r2, |
| 1763 | r3, |
| 1764 | r1, |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1765 | name, |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 1766 | &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1767 | __ bind(&miss); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1768 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1769 | |
| 1770 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1771 | return GetCode(INTERCEPTOR, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1772 | } |
| 1773 | |
| 1774 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1775 | Object* LoadStubCompiler::CompileLoadGlobal(JSObject* object, |
| 1776 | GlobalObject* holder, |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1777 | JSGlobalPropertyCell* cell, |
| 1778 | String* name, |
| 1779 | bool is_dont_delete) { |
| 1780 | // ----------- S t a t e ------------- |
| 1781 | // -- r2 : name |
| 1782 | // -- lr : return address |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 1783 | // -- r0 : receiver |
| 1784 | // -- sp[0] : receiver |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1785 | // ----------------------------------- |
| 1786 | Label miss; |
| 1787 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1788 | // If the object is the holder then we know that it's a global |
| 1789 | // object which can only happen for contextual calls. In this case, |
| 1790 | // the receiver cannot be a smi. |
| 1791 | if (object != holder) { |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 1792 | __ tst(r0, Operand(kSmiTagMask)); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1793 | __ b(eq, &miss); |
| 1794 | } |
| 1795 | |
| 1796 | // Check that the map of the global has not changed. |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 1797 | CheckPrototypes(object, r0, holder, r3, r4, name, &miss); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1798 | |
| 1799 | // Get the value from the cell. |
| 1800 | __ mov(r3, Operand(Handle<JSGlobalPropertyCell>(cell))); |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 1801 | __ ldr(r4, FieldMemOperand(r3, JSGlobalPropertyCell::kValueOffset)); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1802 | |
| 1803 | // Check for deleted property if property can actually be deleted. |
| 1804 | if (!is_dont_delete) { |
ager@chromium.org | ab99eea | 2009-08-25 07:05:41 +0000 | [diff] [blame] | 1805 | __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 1806 | __ cmp(r4, ip); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1807 | __ b(eq, &miss); |
| 1808 | } |
| 1809 | |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 1810 | __ mov(r0, r4); |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1811 | __ IncrementCounter(&Counters::named_load_global_inline, 1, r1, r3); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1812 | __ Ret(); |
| 1813 | |
| 1814 | __ bind(&miss); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1815 | __ IncrementCounter(&Counters::named_load_global_inline_miss, 1, r1, r3); |
| 1816 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 1817 | |
| 1818 | // Return the generated code. |
| 1819 | return GetCode(NORMAL, name); |
| 1820 | } |
| 1821 | |
| 1822 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1823 | Object* KeyedLoadStubCompiler::CompileLoadField(String* name, |
| 1824 | JSObject* receiver, |
| 1825 | JSObject* holder, |
| 1826 | int index) { |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1827 | // ----------- S t a t e ------------- |
| 1828 | // -- lr : return address |
| 1829 | // -- sp[0] : key |
| 1830 | // -- sp[4] : receiver |
| 1831 | // ----------------------------------- |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1832 | Label miss; |
| 1833 | |
| 1834 | __ ldr(r2, MemOperand(sp, 0)); |
| 1835 | __ ldr(r0, MemOperand(sp, kPointerSize)); |
| 1836 | |
| 1837 | __ cmp(r2, Operand(Handle<String>(name))); |
| 1838 | __ b(ne, &miss); |
| 1839 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1840 | GenerateLoadField(receiver, holder, r0, r3, r1, index, name, &miss); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1841 | __ bind(&miss); |
| 1842 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1843 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1844 | return GetCode(FIELD, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1845 | } |
| 1846 | |
| 1847 | |
| 1848 | Object* KeyedLoadStubCompiler::CompileLoadCallback(String* name, |
| 1849 | JSObject* receiver, |
| 1850 | JSObject* holder, |
| 1851 | AccessorInfo* callback) { |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1852 | // ----------- S t a t e ------------- |
| 1853 | // -- lr : return address |
| 1854 | // -- sp[0] : key |
| 1855 | // -- sp[4] : receiver |
| 1856 | // ----------------------------------- |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1857 | Label miss; |
| 1858 | |
| 1859 | __ ldr(r2, MemOperand(sp, 0)); |
| 1860 | __ ldr(r0, MemOperand(sp, kPointerSize)); |
| 1861 | |
| 1862 | __ cmp(r2, Operand(Handle<String>(name))); |
| 1863 | __ b(ne, &miss); |
| 1864 | |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 1865 | Failure* failure = Failure::InternalError(); |
| 1866 | bool success = GenerateLoadCallback(receiver, holder, r0, r2, r3, r1, |
| 1867 | callback, name, &miss, &failure); |
| 1868 | if (!success) return failure; |
| 1869 | |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1870 | __ bind(&miss); |
| 1871 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1872 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1873 | return GetCode(CALLBACKS, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1874 | } |
| 1875 | |
| 1876 | |
| 1877 | Object* KeyedLoadStubCompiler::CompileLoadConstant(String* name, |
| 1878 | JSObject* receiver, |
| 1879 | JSObject* holder, |
| 1880 | Object* value) { |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1881 | // ----------- S t a t e ------------- |
| 1882 | // -- lr : return address |
| 1883 | // -- sp[0] : key |
| 1884 | // -- sp[4] : receiver |
| 1885 | // ----------------------------------- |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1886 | Label miss; |
| 1887 | |
| 1888 | // Check the key is the cached one |
| 1889 | __ ldr(r2, MemOperand(sp, 0)); |
| 1890 | __ ldr(r0, MemOperand(sp, kPointerSize)); |
| 1891 | |
| 1892 | __ cmp(r2, Operand(Handle<String>(name))); |
| 1893 | __ b(ne, &miss); |
| 1894 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1895 | GenerateLoadConstant(receiver, holder, r0, r3, r1, value, name, &miss); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1896 | __ bind(&miss); |
| 1897 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1898 | |
| 1899 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1900 | return GetCode(CONSTANT_FUNCTION, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1901 | } |
| 1902 | |
| 1903 | |
| 1904 | Object* KeyedLoadStubCompiler::CompileLoadInterceptor(JSObject* receiver, |
| 1905 | JSObject* holder, |
| 1906 | String* name) { |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1907 | // ----------- S t a t e ------------- |
| 1908 | // -- lr : return address |
| 1909 | // -- sp[0] : key |
| 1910 | // -- sp[4] : receiver |
| 1911 | // ----------------------------------- |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1912 | Label miss; |
| 1913 | |
| 1914 | // Check the key is the cached one |
| 1915 | __ ldr(r2, MemOperand(sp, 0)); |
| 1916 | __ ldr(r0, MemOperand(sp, kPointerSize)); |
| 1917 | |
| 1918 | __ cmp(r2, Operand(Handle<String>(name))); |
| 1919 | __ b(ne, &miss); |
| 1920 | |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1921 | LookupResult lookup; |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1922 | LookupPostInterceptor(holder, name, &lookup); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1923 | GenerateLoadInterceptor(receiver, |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 1924 | holder, |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1925 | &lookup, |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 1926 | r0, |
| 1927 | r2, |
| 1928 | r3, |
| 1929 | r1, |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1930 | name, |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 1931 | &miss); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1932 | __ bind(&miss); |
| 1933 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1934 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1935 | return GetCode(INTERCEPTOR, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1936 | } |
| 1937 | |
| 1938 | |
| 1939 | Object* KeyedLoadStubCompiler::CompileLoadArrayLength(String* name) { |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1940 | // ----------- S t a t e ------------- |
| 1941 | // -- lr : return address |
| 1942 | // -- sp[0] : key |
| 1943 | // -- sp[4] : receiver |
| 1944 | // ----------------------------------- |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1945 | Label miss; |
| 1946 | |
| 1947 | // Check the key is the cached one |
| 1948 | __ ldr(r2, MemOperand(sp, 0)); |
| 1949 | __ ldr(r0, MemOperand(sp, kPointerSize)); |
| 1950 | |
| 1951 | __ cmp(r2, Operand(Handle<String>(name))); |
| 1952 | __ b(ne, &miss); |
| 1953 | |
| 1954 | GenerateLoadArrayLength(masm(), r0, r3, &miss); |
| 1955 | __ bind(&miss); |
| 1956 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1957 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1958 | return GetCode(CALLBACKS, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1959 | } |
| 1960 | |
| 1961 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 1962 | Object* KeyedLoadStubCompiler::CompileLoadStringLength(String* name) { |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1963 | // ----------- S t a t e ------------- |
| 1964 | // -- lr : return address |
| 1965 | // -- sp[0] : key |
| 1966 | // -- sp[4] : receiver |
| 1967 | // ----------------------------------- |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1968 | Label miss; |
| 1969 | __ IncrementCounter(&Counters::keyed_load_string_length, 1, r1, r3); |
| 1970 | |
| 1971 | __ ldr(r2, MemOperand(sp)); |
| 1972 | __ ldr(r0, MemOperand(sp, kPointerSize)); // receiver |
| 1973 | |
| 1974 | __ cmp(r2, Operand(Handle<String>(name))); |
| 1975 | __ b(ne, &miss); |
| 1976 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1977 | GenerateLoadStringLength(masm(), r0, r1, r3, &miss); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1978 | __ bind(&miss); |
| 1979 | __ DecrementCounter(&Counters::keyed_load_string_length, 1, r1, r3); |
| 1980 | |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1981 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1982 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1983 | return GetCode(CALLBACKS, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1984 | } |
| 1985 | |
| 1986 | |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1987 | // TODO(1224671): implement the fast case. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1988 | Object* KeyedLoadStubCompiler::CompileLoadFunctionPrototype(String* name) { |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1989 | // ----------- S t a t e ------------- |
| 1990 | // -- lr : return address |
| 1991 | // -- sp[0] : key |
| 1992 | // -- sp[4] : receiver |
| 1993 | // ----------------------------------- |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1994 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1995 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1996 | return GetCode(CALLBACKS, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1997 | } |
| 1998 | |
| 1999 | |
| 2000 | Object* KeyedStoreStubCompiler::CompileStoreField(JSObject* object, |
| 2001 | int index, |
| 2002 | Map* transition, |
| 2003 | String* name) { |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 2004 | // ----------- S t a t e ------------- |
| 2005 | // -- r0 : value |
| 2006 | // -- r2 : name |
| 2007 | // -- lr : return address |
| 2008 | // -- [sp] : receiver |
| 2009 | // ----------------------------------- |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 2010 | Label miss; |
| 2011 | |
| 2012 | __ IncrementCounter(&Counters::keyed_store_field, 1, r1, r3); |
| 2013 | |
| 2014 | // Check that the name has not changed. |
| 2015 | __ cmp(r2, Operand(Handle<String>(name))); |
| 2016 | __ b(ne, &miss); |
| 2017 | |
| 2018 | // Load receiver from the stack. |
| 2019 | __ ldr(r3, MemOperand(sp)); |
| 2020 | // r1 is used as scratch register, r3 and r2 might be clobbered. |
| 2021 | GenerateStoreField(masm(), |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 2022 | object, |
| 2023 | index, |
| 2024 | transition, |
| 2025 | r3, r2, r1, |
| 2026 | &miss); |
| 2027 | __ bind(&miss); |
| 2028 | |
| 2029 | __ DecrementCounter(&Counters::keyed_store_field, 1, r1, r3); |
| 2030 | __ mov(r2, Operand(Handle<String>(name))); // restore name register. |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 2031 | Handle<Code> ic(Builtins::builtin(Builtins::KeyedStoreIC_Miss)); |
| 2032 | __ Jump(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2033 | |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 2034 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 2035 | return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 2036 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2037 | |
| 2038 | |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 2039 | Object* ConstructStubCompiler::CompileConstructStub( |
| 2040 | SharedFunctionInfo* shared) { |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 2041 | // ----------- S t a t e ------------- |
| 2042 | // -- r0 : argc |
| 2043 | // -- r1 : constructor |
| 2044 | // -- lr : return address |
| 2045 | // -- [sp] : last argument |
| 2046 | // ----------------------------------- |
| 2047 | Label generic_stub_call; |
| 2048 | |
| 2049 | // Use r7 for holding undefined which is used in several places below. |
| 2050 | __ LoadRoot(r7, Heap::kUndefinedValueRootIndex); |
| 2051 | |
| 2052 | #ifdef ENABLE_DEBUGGER_SUPPORT |
| 2053 | // Check to see whether there are any break points in the function code. If |
| 2054 | // there are jump to the generic constructor stub which calls the actual |
| 2055 | // code for the function thereby hitting the break points. |
| 2056 | __ ldr(r2, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); |
| 2057 | __ ldr(r2, FieldMemOperand(r2, SharedFunctionInfo::kDebugInfoOffset)); |
| 2058 | __ cmp(r2, r7); |
| 2059 | __ b(ne, &generic_stub_call); |
| 2060 | #endif |
| 2061 | |
| 2062 | // Load the initial map and verify that it is in fact a map. |
| 2063 | // r1: constructor function |
| 2064 | // r7: undefined |
| 2065 | __ ldr(r2, FieldMemOperand(r1, JSFunction::kPrototypeOrInitialMapOffset)); |
| 2066 | __ tst(r2, Operand(kSmiTagMask)); |
| 2067 | __ b(eq, &generic_stub_call); |
| 2068 | __ CompareObjectType(r2, r3, r4, MAP_TYPE); |
| 2069 | __ b(ne, &generic_stub_call); |
| 2070 | |
| 2071 | #ifdef DEBUG |
| 2072 | // Cannot construct functions this way. |
| 2073 | // r0: argc |
| 2074 | // r1: constructor function |
| 2075 | // r2: initial map |
| 2076 | // r7: undefined |
| 2077 | __ CompareInstanceType(r2, r3, JS_FUNCTION_TYPE); |
| 2078 | __ Check(ne, "Function constructed by construct stub."); |
| 2079 | #endif |
| 2080 | |
| 2081 | // Now allocate the JSObject in new space. |
| 2082 | // r0: argc |
| 2083 | // r1: constructor function |
| 2084 | // r2: initial map |
| 2085 | // r7: undefined |
| 2086 | __ ldrb(r3, FieldMemOperand(r2, Map::kInstanceSizeOffset)); |
sgjesse@chromium.org | c514574 | 2009-10-07 09:00:33 +0000 | [diff] [blame] | 2087 | __ AllocateInNewSpace(r3, |
| 2088 | r4, |
| 2089 | r5, |
| 2090 | r6, |
| 2091 | &generic_stub_call, |
| 2092 | NO_ALLOCATION_FLAGS); |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 2093 | |
| 2094 | // Allocated the JSObject, now initialize the fields. Map is set to initial |
| 2095 | // map and properties and elements are set to empty fixed array. |
| 2096 | // r0: argc |
| 2097 | // r1: constructor function |
| 2098 | // r2: initial map |
| 2099 | // r3: object size (in words) |
| 2100 | // r4: JSObject (not tagged) |
| 2101 | // r7: undefined |
| 2102 | __ LoadRoot(r6, Heap::kEmptyFixedArrayRootIndex); |
| 2103 | __ mov(r5, r4); |
| 2104 | ASSERT_EQ(0 * kPointerSize, JSObject::kMapOffset); |
| 2105 | __ str(r2, MemOperand(r5, kPointerSize, PostIndex)); |
| 2106 | ASSERT_EQ(1 * kPointerSize, JSObject::kPropertiesOffset); |
| 2107 | __ str(r6, MemOperand(r5, kPointerSize, PostIndex)); |
| 2108 | ASSERT_EQ(2 * kPointerSize, JSObject::kElementsOffset); |
| 2109 | __ str(r6, MemOperand(r5, kPointerSize, PostIndex)); |
| 2110 | |
| 2111 | // Calculate the location of the first argument. The stack contains only the |
| 2112 | // argc arguments. |
| 2113 | __ add(r1, sp, Operand(r0, LSL, kPointerSizeLog2)); |
| 2114 | |
| 2115 | // Fill all the in-object properties with undefined. |
| 2116 | // r0: argc |
| 2117 | // r1: first argument |
| 2118 | // r3: object size (in words) |
| 2119 | // r4: JSObject (not tagged) |
| 2120 | // r5: First in-object property of JSObject (not tagged) |
| 2121 | // r7: undefined |
| 2122 | // Fill the initialized properties with a constant value or a passed argument |
| 2123 | // depending on the this.x = ...; assignment in the function. |
| 2124 | for (int i = 0; i < shared->this_property_assignments_count(); i++) { |
| 2125 | if (shared->IsThisPropertyAssignmentArgument(i)) { |
| 2126 | Label not_passed, next; |
| 2127 | // Check if the argument assigned to the property is actually passed. |
| 2128 | int arg_number = shared->GetThisPropertyAssignmentArgument(i); |
| 2129 | __ cmp(r0, Operand(arg_number)); |
| 2130 | __ b(le, ¬_passed); |
| 2131 | // Argument passed - find it on the stack. |
| 2132 | __ ldr(r2, MemOperand(r1, (arg_number + 1) * -kPointerSize)); |
| 2133 | __ str(r2, MemOperand(r5, kPointerSize, PostIndex)); |
| 2134 | __ b(&next); |
| 2135 | __ bind(¬_passed); |
| 2136 | // Set the property to undefined. |
| 2137 | __ str(r7, MemOperand(r5, kPointerSize, PostIndex)); |
| 2138 | __ bind(&next); |
| 2139 | } else { |
| 2140 | // Set the property to the constant value. |
| 2141 | Handle<Object> constant(shared->GetThisPropertyAssignmentConstant(i)); |
| 2142 | __ mov(r2, Operand(constant)); |
| 2143 | __ str(r2, MemOperand(r5, kPointerSize, PostIndex)); |
| 2144 | } |
| 2145 | } |
| 2146 | |
| 2147 | // Fill the unused in-object property fields with undefined. |
| 2148 | for (int i = shared->this_property_assignments_count(); |
| 2149 | i < shared->CalculateInObjectProperties(); |
| 2150 | i++) { |
| 2151 | __ str(r7, MemOperand(r5, kPointerSize, PostIndex)); |
| 2152 | } |
| 2153 | |
| 2154 | // r0: argc |
| 2155 | // r4: JSObject (not tagged) |
| 2156 | // Move argc to r1 and the JSObject to return to r0 and tag it. |
| 2157 | __ mov(r1, r0); |
| 2158 | __ mov(r0, r4); |
| 2159 | __ orr(r0, r0, Operand(kHeapObjectTag)); |
| 2160 | |
| 2161 | // r0: JSObject |
| 2162 | // r1: argc |
| 2163 | // Remove caller arguments and receiver from the stack and return. |
| 2164 | __ add(sp, sp, Operand(r1, LSL, kPointerSizeLog2)); |
| 2165 | __ add(sp, sp, Operand(kPointerSize)); |
| 2166 | __ IncrementCounter(&Counters::constructed_objects, 1, r1, r2); |
| 2167 | __ IncrementCounter(&Counters::constructed_objects_stub, 1, r1, r2); |
| 2168 | __ Jump(lr); |
| 2169 | |
| 2170 | // Jump to the generic stub in case the specialized code cannot handle the |
| 2171 | // construction. |
| 2172 | __ bind(&generic_stub_call); |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 2173 | Code* code = Builtins::builtin(Builtins::JSConstructStubGeneric); |
| 2174 | Handle<Code> generic_construct_stub(code); |
| 2175 | __ Jump(generic_construct_stub, RelocInfo::CODE_TARGET); |
| 2176 | |
| 2177 | // Return the generated code. |
| 2178 | return GetCode(); |
| 2179 | } |
| 2180 | |
| 2181 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2182 | #undef __ |
| 2183 | |
| 2184 | } } // namespace v8::internal |