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Issue 12700006: Replace ICStub for array.length with hydrogen stub (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: New patch Created 7 years, 9 months ago
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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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2372 // Restore context register. 2372 // Restore context register.
2373 __ movq(rsi, Operand(rbp, StandardFrameConstants::kContextOffset)); 2373 __ movq(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
2374 2374
2375 __ bind(&done); 2375 __ bind(&done);
2376 __ IncrementCounter(counters->math_pow(), 1); 2376 __ IncrementCounter(counters->math_pow(), 1);
2377 __ ret(0); 2377 __ ret(0);
2378 } 2378 }
2379 } 2379 }
2380 2380
2381 2381
2382 void ArrayLengthStub::Generate(MacroAssembler* masm) {
2383 Label miss;
2384 Register receiver;
2385 if (kind() == Code::KEYED_LOAD_IC) {
2386 // ----------- S t a t e -------------
2387 // -- rax : key
2388 // -- rdx : receiver
2389 // -- rsp[0] : return address
2390 // -----------------------------------
2391 __ Cmp(rax, masm->isolate()->factory()->length_string());
2392 __ j(not_equal, &miss);
2393 receiver = rdx;
2394 } else {
2395 ASSERT(kind() == Code::LOAD_IC);
2396 // ----------- S t a t e -------------
2397 // -- rax : receiver
2398 // -- rcx : name
2399 // -- rsp[0] : return address
2400 // -----------------------------------
2401 receiver = rax;
2402 }
2403
2404 StubCompiler::GenerateLoadArrayLength(masm, receiver, r8, &miss);
2405 __ bind(&miss);
2406 StubCompiler::GenerateLoadMiss(masm, kind());
2407 }
2408
2409
2410 void FunctionPrototypeStub::Generate(MacroAssembler* masm) { 2382 void FunctionPrototypeStub::Generate(MacroAssembler* masm) {
2411 Label miss; 2383 Label miss;
2412 Register receiver; 2384 Register receiver;
2413 if (kind() == Code::KEYED_LOAD_IC) { 2385 if (kind() == Code::KEYED_LOAD_IC) {
2414 // ----------- S t a t e ------------- 2386 // ----------- S t a t e -------------
2415 // -- rax : key 2387 // -- rax : key
2416 // -- rdx : receiver 2388 // -- rdx : receiver
2417 // -- rsp[0] : return address 2389 // -- rsp[0] : return address
2418 // ----------------------------------- 2390 // -----------------------------------
2419 __ Cmp(rax, masm->isolate()->factory()->prototype_string()); 2391 __ Cmp(rax, masm->isolate()->factory()->prototype_string());
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6885 #endif 6857 #endif
6886 6858
6887 __ Ret(); 6859 __ Ret();
6888 } 6860 }
6889 6861
6890 #undef __ 6862 #undef __
6891 6863
6892 } } // namespace v8::internal 6864 } } // namespace v8::internal
6893 6865
6894 #endif // V8_TARGET_ARCH_X64 6866 #endif // V8_TARGET_ARCH_X64
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