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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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1311 // Return the generated code. | 1311 // Return the generated code. |
1312 return GetCode(NORMAL, name); | 1312 return GetCode(NORMAL, name); |
1313 } | 1313 } |
1314 | 1314 |
1315 | 1315 |
1316 Object* LoadStubCompiler::CompileLoadCallback(String* name, | 1316 Object* LoadStubCompiler::CompileLoadCallback(String* name, |
1317 JSObject* object, | 1317 JSObject* object, |
1318 JSObject* holder, | 1318 JSObject* holder, |
1319 AccessorInfo* callback) { | 1319 AccessorInfo* callback) { |
1320 // ----------- S t a t e ------------- | 1320 // ----------- S t a t e ------------- |
| 1321 // -- rax : receiver |
1321 // -- rcx : name | 1322 // -- rcx : name |
1322 // -- rsp[0] : return address | 1323 // -- rsp[0] : return address |
1323 // -- rsp[8] : receiver | |
1324 // ----------------------------------- | 1324 // ----------------------------------- |
1325 Label miss; | 1325 Label miss; |
1326 | 1326 |
1327 __ movq(rax, Operand(rsp, kPointerSize)); | |
1328 Failure* failure = Failure::InternalError(); | 1327 Failure* failure = Failure::InternalError(); |
1329 bool success = GenerateLoadCallback(object, holder, rax, rcx, rbx, rdx, | 1328 bool success = GenerateLoadCallback(object, holder, rax, rcx, rbx, rdx, |
1330 callback, name, &miss, &failure); | 1329 callback, name, &miss, &failure); |
1331 if (!success) return failure; | 1330 if (!success) return failure; |
1332 | 1331 |
1333 __ bind(&miss); | 1332 __ bind(&miss); |
1334 GenerateLoadMiss(masm(), Code::LOAD_IC); | 1333 GenerateLoadMiss(masm(), Code::LOAD_IC); |
1335 | 1334 |
1336 // Return the generated code. | 1335 // Return the generated code. |
1337 return GetCode(CALLBACKS, name); | 1336 return GetCode(CALLBACKS, name); |
1338 } | 1337 } |
1339 | 1338 |
1340 | 1339 |
1341 Object* LoadStubCompiler::CompileLoadConstant(JSObject* object, | 1340 Object* LoadStubCompiler::CompileLoadConstant(JSObject* object, |
1342 JSObject* holder, | 1341 JSObject* holder, |
1343 Object* value, | 1342 Object* value, |
1344 String* name) { | 1343 String* name) { |
1345 // ----------- S t a t e ------------- | 1344 // ----------- S t a t e ------------- |
| 1345 // -- rax : receiver |
1346 // -- rcx : name | 1346 // -- rcx : name |
1347 // -- rsp[0] : return address | 1347 // -- rsp[0] : return address |
1348 // -- rsp[8] : receiver | |
1349 // ----------------------------------- | 1348 // ----------------------------------- |
1350 Label miss; | 1349 Label miss; |
1351 | 1350 |
1352 __ movq(rax, Operand(rsp, kPointerSize)); | |
1353 GenerateLoadConstant(object, holder, rax, rbx, rdx, value, name, &miss); | 1351 GenerateLoadConstant(object, holder, rax, rbx, rdx, value, name, &miss); |
1354 __ bind(&miss); | 1352 __ bind(&miss); |
1355 GenerateLoadMiss(masm(), Code::LOAD_IC); | 1353 GenerateLoadMiss(masm(), Code::LOAD_IC); |
1356 | 1354 |
1357 // Return the generated code. | 1355 // Return the generated code. |
1358 return GetCode(CONSTANT_FUNCTION, name); | 1356 return GetCode(CONSTANT_FUNCTION, name); |
1359 } | 1357 } |
1360 | 1358 |
1361 | 1359 |
1362 Object* LoadStubCompiler::CompileLoadNonexistent(String* name, | 1360 Object* LoadStubCompiler::CompileLoadNonexistent(String* name, |
1363 JSObject* object, | 1361 JSObject* object, |
1364 JSObject* last) { | 1362 JSObject* last) { |
1365 // ----------- S t a t e ------------- | 1363 // ----------- S t a t e ------------- |
| 1364 // -- rax : receiver |
1366 // -- rcx : name | 1365 // -- rcx : name |
1367 // -- rsp[0] : return address | 1366 // -- rsp[0] : return address |
1368 // -- rsp[8] : receiver | |
1369 // ----------------------------------- | 1367 // ----------------------------------- |
1370 Label miss; | 1368 Label miss; |
1371 | 1369 |
1372 // Load receiver. | |
1373 __ movq(rax, Operand(rsp, kPointerSize)); | |
1374 | |
1375 // Chech that receiver is not a smi. | 1370 // Chech that receiver is not a smi. |
1376 __ JumpIfSmi(rax, &miss); | 1371 __ JumpIfSmi(rax, &miss); |
1377 | 1372 |
1378 // Check the maps of the full prototype chain. Also check that | 1373 // Check the maps of the full prototype chain. Also check that |
1379 // global property cells up to (but not including) the last object | 1374 // global property cells up to (but not including) the last object |
1380 // in the prototype chain are empty. | 1375 // in the prototype chain are empty. |
1381 CheckPrototypes(object, rax, last, rbx, rdx, name, &miss); | 1376 CheckPrototypes(object, rax, last, rbx, rdx, name, &miss); |
1382 | 1377 |
1383 // If the last object in the prototype chain is a global object, | 1378 // If the last object in the prototype chain is a global object, |
1384 // check that the global property cell is empty. | 1379 // check that the global property cell is empty. |
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1402 // Return the generated code. | 1397 // Return the generated code. |
1403 return GetCode(NONEXISTENT, Heap::empty_string()); | 1398 return GetCode(NONEXISTENT, Heap::empty_string()); |
1404 } | 1399 } |
1405 | 1400 |
1406 | 1401 |
1407 Object* LoadStubCompiler::CompileLoadField(JSObject* object, | 1402 Object* LoadStubCompiler::CompileLoadField(JSObject* object, |
1408 JSObject* holder, | 1403 JSObject* holder, |
1409 int index, | 1404 int index, |
1410 String* name) { | 1405 String* name) { |
1411 // ----------- S t a t e ------------- | 1406 // ----------- S t a t e ------------- |
| 1407 // -- rax : receiver |
1412 // -- rcx : name | 1408 // -- rcx : name |
1413 // -- rsp[0] : return address | 1409 // -- rsp[0] : return address |
1414 // -- rsp[8] : receiver | |
1415 // ----------------------------------- | 1410 // ----------------------------------- |
1416 Label miss; | 1411 Label miss; |
1417 | 1412 |
1418 __ movq(rax, Operand(rsp, kPointerSize)); | |
1419 GenerateLoadField(object, holder, rax, rbx, rdx, index, name, &miss); | 1413 GenerateLoadField(object, holder, rax, rbx, rdx, index, name, &miss); |
1420 __ bind(&miss); | 1414 __ bind(&miss); |
1421 GenerateLoadMiss(masm(), Code::LOAD_IC); | 1415 GenerateLoadMiss(masm(), Code::LOAD_IC); |
1422 | 1416 |
1423 // Return the generated code. | 1417 // Return the generated code. |
1424 return GetCode(FIELD, name); | 1418 return GetCode(FIELD, name); |
1425 } | 1419 } |
1426 | 1420 |
1427 | 1421 |
1428 Object* LoadStubCompiler::CompileLoadInterceptor(JSObject* receiver, | 1422 Object* LoadStubCompiler::CompileLoadInterceptor(JSObject* receiver, |
1429 JSObject* holder, | 1423 JSObject* holder, |
1430 String* name) { | 1424 String* name) { |
1431 // ----------- S t a t e ------------- | 1425 // ----------- S t a t e ------------- |
| 1426 // -- rax : receiver |
1432 // -- rcx : name | 1427 // -- rcx : name |
1433 // -- rsp[0] : return address | 1428 // -- rsp[0] : return address |
1434 // -- rsp[8] : receiver | |
1435 // ----------------------------------- | 1429 // ----------------------------------- |
1436 Label miss; | 1430 Label miss; |
1437 | 1431 |
1438 LookupResult lookup; | 1432 LookupResult lookup; |
1439 LookupPostInterceptor(holder, name, &lookup); | 1433 LookupPostInterceptor(holder, name, &lookup); |
1440 | 1434 |
1441 __ movq(rax, Operand(rsp, kPointerSize)); | |
1442 // TODO(368): Compile in the whole chain: all the interceptors in | 1435 // TODO(368): Compile in the whole chain: all the interceptors in |
1443 // prototypes and ultimate answer. | 1436 // prototypes and ultimate answer. |
1444 GenerateLoadInterceptor(receiver, | 1437 GenerateLoadInterceptor(receiver, |
1445 holder, | 1438 holder, |
1446 &lookup, | 1439 &lookup, |
1447 rax, | 1440 rax, |
1448 rcx, | 1441 rcx, |
1449 rdx, | 1442 rdx, |
1450 rbx, | 1443 rbx, |
1451 name, | 1444 name, |
1452 &miss); | 1445 &miss); |
1453 | 1446 |
1454 __ bind(&miss); | 1447 __ bind(&miss); |
1455 GenerateLoadMiss(masm(), Code::LOAD_IC); | 1448 GenerateLoadMiss(masm(), Code::LOAD_IC); |
1456 | 1449 |
1457 // Return the generated code. | 1450 // Return the generated code. |
1458 return GetCode(INTERCEPTOR, name); | 1451 return GetCode(INTERCEPTOR, name); |
1459 } | 1452 } |
1460 | 1453 |
1461 | 1454 |
1462 Object* LoadStubCompiler::CompileLoadGlobal(JSObject* object, | 1455 Object* LoadStubCompiler::CompileLoadGlobal(JSObject* object, |
1463 GlobalObject* holder, | 1456 GlobalObject* holder, |
1464 JSGlobalPropertyCell* cell, | 1457 JSGlobalPropertyCell* cell, |
1465 String* name, | 1458 String* name, |
1466 bool is_dont_delete) { | 1459 bool is_dont_delete) { |
1467 // ----------- S t a t e ------------- | 1460 // ----------- S t a t e ------------- |
| 1461 // -- rax : receiver |
1468 // -- rcx : name | 1462 // -- rcx : name |
1469 // -- rsp[0] : return address | 1463 // -- rsp[0] : return address |
1470 // -- rsp[8] : receiver | |
1471 // ----------------------------------- | 1464 // ----------------------------------- |
1472 Label miss; | 1465 Label miss; |
1473 | 1466 |
1474 // Get the receiver from the stack. | |
1475 __ movq(rax, Operand(rsp, kPointerSize)); | |
1476 | |
1477 // If the object is the holder then we know that it's a global | 1467 // If the object is the holder then we know that it's a global |
1478 // object which can only happen for contextual loads. In this case, | 1468 // object which can only happen for contextual loads. In this case, |
1479 // the receiver cannot be a smi. | 1469 // the receiver cannot be a smi. |
1480 if (object != holder) { | 1470 if (object != holder) { |
1481 __ JumpIfSmi(rax, &miss); | 1471 __ JumpIfSmi(rax, &miss); |
1482 } | 1472 } |
1483 | 1473 |
1484 // Check that the maps haven't changed. | 1474 // Check that the maps haven't changed. |
1485 CheckPrototypes(object, rax, holder, rbx, rdx, name, &miss); | 1475 CheckPrototypes(object, rax, holder, rbx, rdx, name, &miss); |
1486 | 1476 |
1487 // Get the value from the cell. | 1477 // Get the value from the cell. |
1488 __ Move(rax, Handle<JSGlobalPropertyCell>(cell)); | 1478 __ Move(rbx, Handle<JSGlobalPropertyCell>(cell)); |
1489 __ movq(rax, FieldOperand(rax, JSGlobalPropertyCell::kValueOffset)); | 1479 __ movq(rbx, FieldOperand(rbx, JSGlobalPropertyCell::kValueOffset)); |
1490 | 1480 |
1491 // Check for deleted property if property can actually be deleted. | 1481 // Check for deleted property if property can actually be deleted. |
1492 if (!is_dont_delete) { | 1482 if (!is_dont_delete) { |
1493 __ CompareRoot(rax, Heap::kTheHoleValueRootIndex); | 1483 __ CompareRoot(rbx, Heap::kTheHoleValueRootIndex); |
1494 __ j(equal, &miss); | 1484 __ j(equal, &miss); |
1495 } else if (FLAG_debug_code) { | 1485 } else if (FLAG_debug_code) { |
1496 __ CompareRoot(rax, Heap::kTheHoleValueRootIndex); | 1486 __ CompareRoot(rbx, Heap::kTheHoleValueRootIndex); |
1497 __ Check(not_equal, "DontDelete cells can't contain the hole"); | 1487 __ Check(not_equal, "DontDelete cells can't contain the hole"); |
1498 } | 1488 } |
1499 | 1489 |
1500 __ IncrementCounter(&Counters::named_load_global_inline, 1); | 1490 __ IncrementCounter(&Counters::named_load_global_inline, 1); |
| 1491 __ movq(rax, rbx); |
1501 __ ret(0); | 1492 __ ret(0); |
1502 | 1493 |
1503 __ bind(&miss); | 1494 __ bind(&miss); |
1504 __ IncrementCounter(&Counters::named_load_global_inline_miss, 1); | 1495 __ IncrementCounter(&Counters::named_load_global_inline_miss, 1); |
1505 GenerateLoadMiss(masm(), Code::LOAD_IC); | 1496 GenerateLoadMiss(masm(), Code::LOAD_IC); |
1506 | 1497 |
1507 // Return the generated code. | 1498 // Return the generated code. |
1508 return GetCode(NORMAL, name); | 1499 return GetCode(NORMAL, name); |
1509 } | 1500 } |
1510 | 1501 |
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2326 // Return the generated code. | 2317 // Return the generated code. |
2327 return GetCode(); | 2318 return GetCode(); |
2328 } | 2319 } |
2329 | 2320 |
2330 | 2321 |
2331 #undef __ | 2322 #undef __ |
2332 | 2323 |
2333 } } // namespace v8::internal | 2324 } } // namespace v8::internal |
2334 | 2325 |
2335 #endif // V8_TARGET_ARCH_X64 | 2326 #endif // V8_TARGET_ARCH_X64 |
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