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| 1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 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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| 1319 | 1319 |
| 1320 // The offset is in the 32-bit displacement of a seven byte | 1320 // The offset is in the 32-bit displacement of a seven byte |
| 1321 // memory-to-register move instruction (REX.W 0x88 ModR/M disp32), | 1321 // memory-to-register move instruction (REX.W 0x88 ModR/M disp32), |
| 1322 // so we add 3 to get the offset of the displacement. | 1322 // so we add 3 to get the offset of the displacement. |
| 1323 Address offset_address = | 1323 Address offset_address = |
| 1324 test_instruction_address + delta + kOffsetToLoadInstruction + 3; | 1324 test_instruction_address + delta + kOffsetToLoadInstruction + 3; |
| 1325 *reinterpret_cast<int*>(offset_address) = offset - kHeapObjectTag; | 1325 *reinterpret_cast<int*>(offset_address) = offset - kHeapObjectTag; |
| 1326 return true; | 1326 return true; |
| 1327 } | 1327 } |
| 1328 | 1328 |
| 1329 void StoreIC::Generate(MacroAssembler* masm, ExternalReference const& f) { | 1329 void StoreIC::GenerateMiss(MacroAssembler* masm) { |
| 1330 // ----------- S t a t e ------------- | 1330 // ----------- S t a t e ------------- |
| 1331 // -- rax : value | 1331 // -- rax : value |
| 1332 // -- rcx : name | 1332 // -- rcx : name |
| 1333 // -- rsp[0] : return address | 1333 // -- rsp[0] : return address |
| 1334 // -- rsp[8] : receiver | 1334 // -- rsp[8] : receiver |
| 1335 // ----------------------------------- | 1335 // ----------------------------------- |
| 1336 | 1336 |
| 1337 __ pop(rbx); | 1337 __ pop(rbx); |
| 1338 __ push(Operand(rsp, 0)); // receiver | 1338 __ push(Operand(rsp, 0)); // receiver |
| 1339 __ push(rcx); // name | 1339 __ push(rcx); // name |
| 1340 __ push(rax); // value | 1340 __ push(rax); // value |
| 1341 __ push(rbx); // return address | 1341 __ push(rbx); // return address |
| 1342 | 1342 |
| 1343 // Perform tail call to the entry. | 1343 // Perform tail call to the entry. |
| 1344 __ TailCallRuntime(f, 3, 1); | 1344 __ TailCallRuntime(ExternalReference(IC_Utility(kStoreIC_Miss)), 3, 1); |
| 1345 } | 1345 } |
| 1346 | 1346 |
| 1347 void StoreIC::GenerateExtendStorage(MacroAssembler* masm) { | 1347 void StoreIC::GenerateExtendStorage(MacroAssembler* masm) { |
| 1348 // ----------- S t a t e ------------- | 1348 // ----------- S t a t e ------------- |
| 1349 // -- rax : value | 1349 // -- rax : value |
| 1350 // -- rcx : Map (target of map transition) | 1350 // -- rcx : Map (target of map transition) |
| 1351 // -- rsp[0] : return address | 1351 // -- rsp[0] : return address |
| 1352 // -- rsp[8] : receiver | 1352 // -- rsp[8] : receiver |
| 1353 // ----------------------------------- | 1353 // ----------------------------------- |
| 1354 | 1354 |
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| 1372 // ----------------------------------- | 1372 // ----------------------------------- |
| 1373 | 1373 |
| 1374 // Get the receiver from the stack and probe the stub cache. | 1374 // Get the receiver from the stack and probe the stub cache. |
| 1375 __ movq(rdx, Operand(rsp, kPointerSize)); | 1375 __ movq(rdx, Operand(rsp, kPointerSize)); |
| 1376 Code::Flags flags = Code::ComputeFlags(Code::STORE_IC, | 1376 Code::Flags flags = Code::ComputeFlags(Code::STORE_IC, |
| 1377 NOT_IN_LOOP, | 1377 NOT_IN_LOOP, |
| 1378 MONOMORPHIC); | 1378 MONOMORPHIC); |
| 1379 StubCache::GenerateProbe(masm, flags, rdx, rcx, rbx, no_reg); | 1379 StubCache::GenerateProbe(masm, flags, rdx, rcx, rbx, no_reg); |
| 1380 | 1380 |
| 1381 // Cache miss: Jump to runtime. | 1381 // Cache miss: Jump to runtime. |
| 1382 Generate(masm, ExternalReference(IC_Utility(kStoreIC_Miss))); | 1382 GenerateMiss(masm); |
| 1383 } | 1383 } |
| 1384 | 1384 |
| 1385 | 1385 |
| 1386 #undef __ | 1386 #undef __ |
| 1387 | 1387 |
| 1388 | 1388 |
| 1389 } } // namespace v8::internal | 1389 } } // namespace v8::internal |
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