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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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