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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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1479 | 1479 |
1480 // The slow case calls into the runtime to complete the store without causing | 1480 // The slow case calls into the runtime to complete the store without causing |
1481 // an IC miss that would otherwise cause a transition to the generic stub. | 1481 // an IC miss that would otherwise cause a transition to the generic stub. |
1482 ExternalReference ref = | 1482 ExternalReference ref = |
1483 ExternalReference(IC_Utility(kKeyedStoreIC_Slow), masm->isolate()); | 1483 ExternalReference(IC_Utility(kKeyedStoreIC_Slow), masm->isolate()); |
1484 | 1484 |
1485 __ TailCallExternalReference(ref, 3, 1); | 1485 __ TailCallExternalReference(ref, 3, 1); |
1486 } | 1486 } |
1487 | 1487 |
1488 | 1488 |
1489 void KeyedStoreIC::GenerateTransitionElementsSmiToDouble(MacroAssembler* masm) { | |
1490 // ---------- S t a t e -------------- | |
1491 // -- a2 : receiver | |
1492 // -- a3 : target map | |
1493 // -- ra : return address | |
1494 // ----------------------------------- | |
1495 // Must return the modified receiver in v0. | |
1496 if (!FLAG_trace_elements_transitions) { | |
1497 Label fail; | |
1498 AllocationSiteMode mode = AllocationSite::GetMode(FAST_SMI_ELEMENTS, | |
1499 FAST_DOUBLE_ELEMENTS); | |
1500 ElementsTransitionGenerator::GenerateSmiToDouble(masm, mode, &fail); | |
1501 __ Ret(USE_DELAY_SLOT); | |
1502 __ mov(v0, a2); | |
1503 __ bind(&fail); | |
1504 } | |
1505 | |
1506 __ push(a2); | |
1507 __ TailCallRuntime(Runtime::kTransitionElementsSmiToDouble, 1, 1); | |
1508 } | |
1509 | |
1510 | |
1511 void KeyedStoreIC::GenerateTransitionElementsDoubleToObject( | |
1512 MacroAssembler* masm) { | |
1513 // ---------- S t a t e -------------- | |
1514 // -- a2 : receiver | |
1515 // -- a3 : target map | |
1516 // -- ra : return address | |
1517 // ----------------------------------- | |
1518 // Must return the modified receiver in v0. | |
1519 if (!FLAG_trace_elements_transitions) { | |
1520 Label fail; | |
1521 AllocationSiteMode mode = AllocationSite::GetMode(FAST_DOUBLE_ELEMENTS, | |
1522 FAST_ELEMENTS); | |
1523 ElementsTransitionGenerator::GenerateDoubleToObject(masm, mode, &fail); | |
1524 __ Ret(USE_DELAY_SLOT); | |
1525 __ mov(v0, a2); | |
1526 __ bind(&fail); | |
1527 } | |
1528 | |
1529 __ push(a2); | |
1530 __ TailCallRuntime(Runtime::kTransitionElementsDoubleToObject, 1, 1); | |
1531 } | |
1532 | |
1533 | |
1534 void StoreIC::GenerateMegamorphic(MacroAssembler* masm, | 1489 void StoreIC::GenerateMegamorphic(MacroAssembler* masm, |
1535 StrictModeFlag strict_mode) { | 1490 StrictModeFlag strict_mode) { |
1536 // ----------- S t a t e ------------- | 1491 // ----------- S t a t e ------------- |
1537 // -- a0 : value | 1492 // -- a0 : value |
1538 // -- a1 : receiver | 1493 // -- a1 : receiver |
1539 // -- a2 : name | 1494 // -- a2 : name |
1540 // -- ra : return address | 1495 // -- ra : return address |
1541 // ----------------------------------- | 1496 // ----------------------------------- |
1542 | 1497 |
1543 // Get the receiver from the stack and probe the stub cache. | 1498 // Get the receiver from the stack and probe the stub cache. |
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1705 } else { | 1660 } else { |
1706 ASSERT(Assembler::IsBne(branch_instr)); | 1661 ASSERT(Assembler::IsBne(branch_instr)); |
1707 patcher.ChangeBranchCondition(eq); | 1662 patcher.ChangeBranchCondition(eq); |
1708 } | 1663 } |
1709 } | 1664 } |
1710 | 1665 |
1711 | 1666 |
1712 } } // namespace v8::internal | 1667 } } // namespace v8::internal |
1713 | 1668 |
1714 #endif // V8_TARGET_ARCH_MIPS | 1669 #endif // V8_TARGET_ARCH_MIPS |
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