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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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67 ASSERT(extra_args == NO_EXTRA_ARGUMENTS); | 67 ASSERT(extra_args == NO_EXTRA_ARGUMENTS); |
68 } | 68 } |
69 | 69 |
70 // JumpToExternalReference expects eax to contain the number of arguments | 70 // JumpToExternalReference expects eax to contain the number of arguments |
71 // including the receiver and the extra arguments. | 71 // including the receiver and the extra arguments. |
72 __ add(eax, Immediate(num_extra_args + 1)); | 72 __ add(eax, Immediate(num_extra_args + 1)); |
73 __ JumpToExternalReference(ExternalReference(id, masm->isolate())); | 73 __ JumpToExternalReference(ExternalReference(id, masm->isolate())); |
74 } | 74 } |
75 | 75 |
76 | 76 |
77 static void CallRuntimePassFunction(MacroAssembler* masm, | 77 static void CallRuntimePassFunctionAndTailCall( |
titzer
2013/12/09 14:49:28
Similar comments to the arm port on naming here.
Yang
2013/12/10 11:22:04
Done.
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78 Runtime::FunctionId function_id) { | 78 MacroAssembler* masm, Runtime::FunctionId function_id) { |
79 FrameScope scope(masm, StackFrame::INTERNAL); | 79 { FrameScope scope(masm, StackFrame::INTERNAL); |
80 // Push a copy of the function. | 80 // Push a copy of the function. |
81 __ push(edi); | 81 __ push(edi); |
82 // Push call kind information. | 82 // Push call kind information. |
83 __ push(ecx); | 83 __ push(ecx); |
84 // Function is also the parameter to the runtime call. | 84 // Function is also the parameter to the runtime call. |
85 __ push(edi); | 85 __ push(edi); |
86 | 86 |
87 __ CallRuntime(function_id, 1); | 87 __ CallRuntime(function_id, 1); |
88 // Restore call kind information. | 88 // Restore call kind information. |
89 __ pop(ecx); | 89 __ pop(ecx); |
90 // Restore receiver. | 90 // Restore receiver. |
91 __ pop(edi); | 91 __ pop(edi); |
92 } | |
93 // Tail call to returned code. | |
94 __ lea(eax, FieldOperand(eax, Code::kHeaderSize)); | |
95 __ jmp(eax); | |
92 } | 96 } |
93 | 97 |
94 | 98 |
95 static void GenerateTailCallToSharedCode(MacroAssembler* masm) { | 99 static void GenerateTailCallToSharedCode(MacroAssembler* masm) { |
96 __ mov(eax, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); | 100 __ mov(eax, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
97 __ mov(eax, FieldOperand(eax, SharedFunctionInfo::kCodeOffset)); | 101 __ mov(eax, FieldOperand(eax, SharedFunctionInfo::kCodeOffset)); |
98 __ lea(eax, FieldOperand(eax, Code::kHeaderSize)); | 102 __ lea(eax, FieldOperand(eax, Code::kHeaderSize)); |
99 __ jmp(eax); | 103 __ jmp(eax); |
100 } | 104 } |
101 | 105 |
102 | 106 |
103 void Builtins::Generate_InRecompileQueue(MacroAssembler* masm) { | 107 void Builtins::Generate_InOptimizationQueue(MacroAssembler* masm) { |
104 // Checking whether the queued function is ready for install is optional, | 108 // Checking whether the queued function is ready for install is optional, |
105 // since we come across interrupts and stack checks elsewhere. However, | 109 // since we come across interrupts and stack checks elsewhere. However, |
106 // not checking may delay installing ready functions, and always checking | 110 // not checking may delay installing ready functions, and always checking |
107 // would be quite expensive. A good compromise is to first check against | 111 // would be quite expensive. A good compromise is to first check against |
108 // stack limit as a cue for an interrupt signal. | 112 // stack limit as a cue for an interrupt signal. |
109 Label ok; | 113 Label ok; |
110 ExternalReference stack_limit = | 114 ExternalReference stack_limit = |
111 ExternalReference::address_of_stack_limit(masm->isolate()); | 115 ExternalReference::address_of_stack_limit(masm->isolate()); |
112 __ cmp(esp, Operand::StaticVariable(stack_limit)); | 116 __ cmp(esp, Operand::StaticVariable(stack_limit)); |
113 __ j(above_equal, &ok, Label::kNear); | 117 __ j(above_equal, &ok, Label::kNear); |
114 | 118 |
115 CallRuntimePassFunction(masm, Runtime::kTryInstallRecompiledCode); | 119 CallRuntimePassFunctionAndTailCall(masm, Runtime::kTryInstallOptimizedCode); |
116 // Tail call to returned code. | |
117 __ lea(eax, FieldOperand(eax, Code::kHeaderSize)); | |
118 __ jmp(eax); | |
119 | 120 |
120 __ bind(&ok); | 121 __ bind(&ok); |
121 GenerateTailCallToSharedCode(masm); | 122 GenerateTailCallToSharedCode(masm); |
122 } | 123 } |
123 | 124 |
124 | 125 |
125 void Builtins::Generate_ConcurrentRecompile(MacroAssembler* masm) { | |
126 CallRuntimePassFunction(masm, Runtime::kConcurrentRecompile); | |
127 GenerateTailCallToSharedCode(masm); | |
128 } | |
129 | |
130 | |
131 static void Generate_JSConstructStubHelper(MacroAssembler* masm, | 126 static void Generate_JSConstructStubHelper(MacroAssembler* masm, |
132 bool is_api_function, | 127 bool is_api_function, |
133 bool count_constructions) { | 128 bool count_constructions) { |
134 // ----------- S t a t e ------------- | 129 // ----------- S t a t e ------------- |
135 // -- eax: number of arguments | 130 // -- eax: number of arguments |
136 // -- edi: constructor function | 131 // -- edi: constructor function |
137 // ----------------------------------- | 132 // ----------------------------------- |
138 | 133 |
139 // Should never count constructions for api objects. | 134 // Should never count constructions for api objects. |
140 ASSERT(!is_api_function || !count_constructions); | 135 ASSERT(!is_api_function || !count_constructions); |
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503 Generate_JSEntryTrampolineHelper(masm, false); | 498 Generate_JSEntryTrampolineHelper(masm, false); |
504 } | 499 } |
505 | 500 |
506 | 501 |
507 void Builtins::Generate_JSConstructEntryTrampoline(MacroAssembler* masm) { | 502 void Builtins::Generate_JSConstructEntryTrampoline(MacroAssembler* masm) { |
508 Generate_JSEntryTrampolineHelper(masm, true); | 503 Generate_JSEntryTrampolineHelper(masm, true); |
509 } | 504 } |
510 | 505 |
511 | 506 |
512 void Builtins::Generate_LazyCompile(MacroAssembler* masm) { | 507 void Builtins::Generate_LazyCompile(MacroAssembler* masm) { |
513 CallRuntimePassFunction(masm, Runtime::kLazyCompile); | 508 CallRuntimePassFunctionAndTailCall(masm, Runtime::kCompileUnoptimized); |
514 // Do a tail-call of the compiled function. | 509 } |
510 | |
511 | |
512 | |
513 static void CallCompileOptimizedAndTailCall(MacroAssembler* masm, | |
514 bool concurrent) { | |
515 { FrameScope scope(masm, StackFrame::INTERNAL); | |
516 // Push a copy of the function. | |
517 __ push(edi); | |
518 // Push call kind information. | |
519 __ push(ecx); | |
520 // Function is also the parameter to the runtime call. | |
521 __ push(edi); | |
522 // Whether to compile in a background thread. | |
523 __ Push(masm->isolate()->factory()->ToBoolean(concurrent)); | |
524 | |
525 __ CallRuntime(Runtime::kCompileOptimized, 2); | |
526 // Restore call kind information. | |
527 __ pop(ecx); | |
528 // Restore receiver. | |
529 __ pop(edi); | |
530 } | |
531 // Tail call to returned code. | |
515 __ lea(eax, FieldOperand(eax, Code::kHeaderSize)); | 532 __ lea(eax, FieldOperand(eax, Code::kHeaderSize)); |
516 __ jmp(eax); | 533 __ jmp(eax); |
517 } | 534 } |
518 | 535 |
519 | 536 |
520 void Builtins::Generate_LazyRecompile(MacroAssembler* masm) { | 537 void Builtins::Generate_CompileOptimized(MacroAssembler* masm) { |
521 CallRuntimePassFunction(masm, Runtime::kLazyRecompile); | 538 CallCompileOptimizedAndTailCall(masm, false); |
522 // Do a tail-call of the compiled function. | 539 } |
523 __ lea(eax, FieldOperand(eax, Code::kHeaderSize)); | 540 |
524 __ jmp(eax); | 541 |
542 void Builtins::Generate_CompileOptimizedConcurrent(MacroAssembler* masm) { | |
543 CallCompileOptimizedAndTailCall(masm, true); | |
525 } | 544 } |
526 | 545 |
527 | 546 |
528 static void GenerateMakeCodeYoungAgainCommon(MacroAssembler* masm) { | 547 static void GenerateMakeCodeYoungAgainCommon(MacroAssembler* masm) { |
529 // For now, we are relying on the fact that make_code_young doesn't do any | 548 // For now, we are relying on the fact that make_code_young doesn't do any |
530 // garbage collection which allows us to save/restore the registers without | 549 // garbage collection which allows us to save/restore the registers without |
531 // worrying about which of them contain pointers. We also don't build an | 550 // worrying about which of them contain pointers. We also don't build an |
532 // internal frame to make the code faster, since we shouldn't have to do stack | 551 // internal frame to make the code faster, since we shouldn't have to do stack |
533 // crawls in MakeCodeYoung. This seems a bit fragile. | 552 // crawls in MakeCodeYoung. This seems a bit fragile. |
534 | 553 |
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1364 | 1383 |
1365 __ bind(&ok); | 1384 __ bind(&ok); |
1366 __ ret(0); | 1385 __ ret(0); |
1367 } | 1386 } |
1368 | 1387 |
1369 #undef __ | 1388 #undef __ |
1370 } | 1389 } |
1371 } // namespace v8::internal | 1390 } // namespace v8::internal |
1372 | 1391 |
1373 #endif // V8_TARGET_ARCH_IA32 | 1392 #endif // V8_TARGET_ARCH_IA32 |
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