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