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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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| 1254 __ Branch(&non_double_value, ne, t0, Operand(at)); | 1254 __ Branch(&non_double_value, ne, t0, Operand(at)); |
| 1255 | 1255 |
| 1256 // Value is a double. Transition FAST_SMI_ELEMENTS -> | 1256 // Value is a double. Transition FAST_SMI_ELEMENTS -> |
| 1257 // FAST_DOUBLE_ELEMENTS and complete the store. | 1257 // FAST_DOUBLE_ELEMENTS and complete the store. |
| 1258 __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS, | 1258 __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS, |
| 1259 FAST_DOUBLE_ELEMENTS, | 1259 FAST_DOUBLE_ELEMENTS, |
| 1260 receiver_map, | 1260 receiver_map, |
| 1261 t0, | 1261 t0, |
| 1262 slow); | 1262 slow); |
| 1263 ASSERT(receiver_map.is(a3)); // Transition code expects map in a3 | 1263 ASSERT(receiver_map.is(a3)); // Transition code expects map in a3 |
| 1264 AllocationSiteMode mode = AllocationSiteInfo::GetMode(FAST_SMI_ELEMENTS, | 1264 AllocationSiteMode mode = AllocationSite::GetMode(FAST_SMI_ELEMENTS, |
| 1265 FAST_DOUBLE_ELEMENTS); | 1265 FAST_DOUBLE_ELEMENTS); |
| 1266 ElementsTransitionGenerator::GenerateSmiToDouble(masm, mode, slow); | 1266 ElementsTransitionGenerator::GenerateSmiToDouble(masm, mode, slow); |
| 1267 __ lw(elements, FieldMemOperand(receiver, JSObject::kElementsOffset)); | 1267 __ lw(elements, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
| 1268 __ jmp(&fast_double_without_map_check); | 1268 __ jmp(&fast_double_without_map_check); |
| 1269 | 1269 |
| 1270 __ bind(&non_double_value); | 1270 __ bind(&non_double_value); |
| 1271 // Value is not a double, FAST_SMI_ELEMENTS -> FAST_ELEMENTS | 1271 // Value is not a double, FAST_SMI_ELEMENTS -> FAST_ELEMENTS |
| 1272 __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS, | 1272 __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS, |
| 1273 FAST_ELEMENTS, | 1273 FAST_ELEMENTS, |
| 1274 receiver_map, | 1274 receiver_map, |
| 1275 t0, | 1275 t0, |
| 1276 slow); | 1276 slow); |
| 1277 ASSERT(receiver_map.is(a3)); // Transition code expects map in a3 | 1277 ASSERT(receiver_map.is(a3)); // Transition code expects map in a3 |
| 1278 mode = AllocationSiteInfo::GetMode(FAST_SMI_ELEMENTS, FAST_ELEMENTS); | 1278 mode = AllocationSite::GetMode(FAST_SMI_ELEMENTS, FAST_ELEMENTS); |
| 1279 ElementsTransitionGenerator::GenerateMapChangeElementsTransition(masm, mode, | 1279 ElementsTransitionGenerator::GenerateMapChangeElementsTransition(masm, mode, |
| 1280 slow); | 1280 slow); |
| 1281 __ lw(elements, FieldMemOperand(receiver, JSObject::kElementsOffset)); | 1281 __ lw(elements, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
| 1282 __ jmp(&finish_object_store); | 1282 __ jmp(&finish_object_store); |
| 1283 | 1283 |
| 1284 __ bind(&transition_double_elements); | 1284 __ bind(&transition_double_elements); |
| 1285 // Elements are FAST_DOUBLE_ELEMENTS, but value is an Object that's not a | 1285 // Elements are FAST_DOUBLE_ELEMENTS, but value is an Object that's not a |
| 1286 // HeapNumber. Make sure that the receiver is a Array with FAST_ELEMENTS and | 1286 // HeapNumber. Make sure that the receiver is a Array with FAST_ELEMENTS and |
| 1287 // transition array from FAST_DOUBLE_ELEMENTS to FAST_ELEMENTS | 1287 // transition array from FAST_DOUBLE_ELEMENTS to FAST_ELEMENTS |
| 1288 __ LoadTransitionedArrayMapConditional(FAST_DOUBLE_ELEMENTS, | 1288 __ LoadTransitionedArrayMapConditional(FAST_DOUBLE_ELEMENTS, |
| 1289 FAST_ELEMENTS, | 1289 FAST_ELEMENTS, |
| 1290 receiver_map, | 1290 receiver_map, |
| 1291 t0, | 1291 t0, |
| 1292 slow); | 1292 slow); |
| 1293 ASSERT(receiver_map.is(a3)); // Transition code expects map in a3 | 1293 ASSERT(receiver_map.is(a3)); // Transition code expects map in a3 |
| 1294 mode = AllocationSiteInfo::GetMode(FAST_DOUBLE_ELEMENTS, FAST_ELEMENTS); | 1294 mode = AllocationSite::GetMode(FAST_DOUBLE_ELEMENTS, FAST_ELEMENTS); |
| 1295 ElementsTransitionGenerator::GenerateDoubleToObject(masm, mode, slow); | 1295 ElementsTransitionGenerator::GenerateDoubleToObject(masm, mode, slow); |
| 1296 __ lw(elements, FieldMemOperand(receiver, JSObject::kElementsOffset)); | 1296 __ lw(elements, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
| 1297 __ jmp(&finish_object_store); | 1297 __ jmp(&finish_object_store); |
| 1298 } | 1298 } |
| 1299 | 1299 |
| 1300 | 1300 |
| 1301 void KeyedStoreIC::GenerateGeneric(MacroAssembler* masm, | 1301 void KeyedStoreIC::GenerateGeneric(MacroAssembler* masm, |
| 1302 StrictModeFlag strict_mode) { | 1302 StrictModeFlag strict_mode) { |
| 1303 // ---------- S t a t e -------------- | 1303 // ---------- S t a t e -------------- |
| 1304 // -- a0 : value | 1304 // -- a0 : value |
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| 1488 | 1488 |
| 1489 void KeyedStoreIC::GenerateTransitionElementsSmiToDouble(MacroAssembler* masm) { | 1489 void KeyedStoreIC::GenerateTransitionElementsSmiToDouble(MacroAssembler* masm) { |
| 1490 // ---------- S t a t e -------------- | 1490 // ---------- S t a t e -------------- |
| 1491 // -- a2 : receiver | 1491 // -- a2 : receiver |
| 1492 // -- a3 : target map | 1492 // -- a3 : target map |
| 1493 // -- ra : return address | 1493 // -- ra : return address |
| 1494 // ----------------------------------- | 1494 // ----------------------------------- |
| 1495 // Must return the modified receiver in v0. | 1495 // Must return the modified receiver in v0. |
| 1496 if (!FLAG_trace_elements_transitions) { | 1496 if (!FLAG_trace_elements_transitions) { |
| 1497 Label fail; | 1497 Label fail; |
| 1498 AllocationSiteMode mode = AllocationSiteInfo::GetMode(FAST_SMI_ELEMENTS, | 1498 AllocationSiteMode mode = AllocationSite::GetMode(FAST_SMI_ELEMENTS, |
| 1499 FAST_DOUBLE_ELEMENTS); | 1499 FAST_DOUBLE_ELEMENTS); |
| 1500 ElementsTransitionGenerator::GenerateSmiToDouble(masm, mode, &fail); | 1500 ElementsTransitionGenerator::GenerateSmiToDouble(masm, mode, &fail); |
| 1501 __ Ret(USE_DELAY_SLOT); | 1501 __ Ret(USE_DELAY_SLOT); |
| 1502 __ mov(v0, a2); | 1502 __ mov(v0, a2); |
| 1503 __ bind(&fail); | 1503 __ bind(&fail); |
| 1504 } | 1504 } |
| 1505 | 1505 |
| 1506 __ push(a2); | 1506 __ push(a2); |
| 1507 __ TailCallRuntime(Runtime::kTransitionElementsSmiToDouble, 1, 1); | 1507 __ TailCallRuntime(Runtime::kTransitionElementsSmiToDouble, 1, 1); |
| 1508 } | 1508 } |
| 1509 | 1509 |
| 1510 | 1510 |
| 1511 void KeyedStoreIC::GenerateTransitionElementsDoubleToObject( | 1511 void KeyedStoreIC::GenerateTransitionElementsDoubleToObject( |
| 1512 MacroAssembler* masm) { | 1512 MacroAssembler* masm) { |
| 1513 // ---------- S t a t e -------------- | 1513 // ---------- S t a t e -------------- |
| 1514 // -- a2 : receiver | 1514 // -- a2 : receiver |
| 1515 // -- a3 : target map | 1515 // -- a3 : target map |
| 1516 // -- ra : return address | 1516 // -- ra : return address |
| 1517 // ----------------------------------- | 1517 // ----------------------------------- |
| 1518 // Must return the modified receiver in v0. | 1518 // Must return the modified receiver in v0. |
| 1519 if (!FLAG_trace_elements_transitions) { | 1519 if (!FLAG_trace_elements_transitions) { |
| 1520 Label fail; | 1520 Label fail; |
| 1521 AllocationSiteMode mode = AllocationSiteInfo::GetMode(FAST_DOUBLE_ELEMENTS, | 1521 AllocationSiteMode mode = AllocationSite::GetMode(FAST_DOUBLE_ELEMENTS, |
| 1522 FAST_ELEMENTS); | 1522 FAST_ELEMENTS); |
| 1523 ElementsTransitionGenerator::GenerateDoubleToObject(masm, mode, &fail); | 1523 ElementsTransitionGenerator::GenerateDoubleToObject(masm, mode, &fail); |
| 1524 __ Ret(USE_DELAY_SLOT); | 1524 __ Ret(USE_DELAY_SLOT); |
| 1525 __ mov(v0, a2); | 1525 __ mov(v0, a2); |
| 1526 __ bind(&fail); | 1526 __ bind(&fail); |
| 1527 } | 1527 } |
| 1528 | 1528 |
| 1529 __ push(a2); | 1529 __ push(a2); |
| 1530 __ TailCallRuntime(Runtime::kTransitionElementsDoubleToObject, 1, 1); | 1530 __ TailCallRuntime(Runtime::kTransitionElementsDoubleToObject, 1, 1); |
| 1531 } | 1531 } |
| 1532 | 1532 |
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| 1704 } else { | 1704 } else { |
| 1705 ASSERT(Assembler::IsBne(branch_instr)); | 1705 ASSERT(Assembler::IsBne(branch_instr)); |
| 1706 patcher.ChangeBranchCondition(eq); | 1706 patcher.ChangeBranchCondition(eq); |
| 1707 } | 1707 } |
| 1708 } | 1708 } |
| 1709 | 1709 |
| 1710 | 1710 |
| 1711 } } // namespace v8::internal | 1711 } } // namespace v8::internal |
| 1712 | 1712 |
| 1713 #endif // V8_TARGET_ARCH_MIPS | 1713 #endif // V8_TARGET_ARCH_MIPS |
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