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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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133 // o ebp: our caller's frame pointer | 133 // o ebp: our caller's frame pointer |
134 // o esp: stack pointer (pointing to return address) | 134 // o esp: stack pointer (pointing to return address) |
135 // | 135 // |
136 // The function builds a JS frame. Please see JavaScriptFrameConstants in | 136 // The function builds a JS frame. Please see JavaScriptFrameConstants in |
137 // frames-ia32.h for its layout. | 137 // frames-ia32.h for its layout. |
138 void FullCodeGenerator::Generate() { | 138 void FullCodeGenerator::Generate() { |
139 CompilationInfo* info = info_; | 139 CompilationInfo* info = info_; |
140 handler_table_ = | 140 handler_table_ = |
141 isolate()->factory()->NewFixedArray(function()->handler_count(), TENURED); | 141 isolate()->factory()->NewFixedArray(function()->handler_count(), TENURED); |
142 | 142 |
143 InitializeFeedbackVector(); | |
144 | |
145 profiling_counter_ = isolate()->factory()->NewCell( | 143 profiling_counter_ = isolate()->factory()->NewCell( |
146 Handle<Smi>(Smi::FromInt(FLAG_interrupt_budget), isolate())); | 144 Handle<Smi>(Smi::FromInt(FLAG_interrupt_budget), isolate())); |
147 SetFunctionPosition(function()); | 145 SetFunctionPosition(function()); |
148 Comment cmnt(masm_, "[ function compiled by full code generator"); | 146 Comment cmnt(masm_, "[ function compiled by full code generator"); |
149 | 147 |
150 ProfileEntryHookStub::MaybeCallEntryHook(masm_); | 148 ProfileEntryHookStub::MaybeCallEntryHook(masm_); |
151 | 149 |
152 #ifdef DEBUG | 150 #ifdef DEBUG |
153 if (strlen(FLAG_stop_at) > 0 && | 151 if (strlen(FLAG_stop_at) > 0 && |
154 info->function()->name()->IsUtf8EqualTo(CStrVector(FLAG_stop_at))) { | 152 info->function()->name()->IsUtf8EqualTo(CStrVector(FLAG_stop_at))) { |
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1128 __ jmp(&loop); | 1126 __ jmp(&loop); |
1129 | 1127 |
1130 __ bind(&no_descriptors); | 1128 __ bind(&no_descriptors); |
1131 __ add(esp, Immediate(kPointerSize)); | 1129 __ add(esp, Immediate(kPointerSize)); |
1132 __ jmp(&exit); | 1130 __ jmp(&exit); |
1133 | 1131 |
1134 // We got a fixed array in register eax. Iterate through that. | 1132 // We got a fixed array in register eax. Iterate through that. |
1135 Label non_proxy; | 1133 Label non_proxy; |
1136 __ bind(&fixed_array); | 1134 __ bind(&fixed_array); |
1137 | 1135 |
1138 Handle<Object> feedback = Handle<Object>( | |
1139 Smi::FromInt(TypeFeedbackInfo::kForInFastCaseMarker), | |
1140 isolate()); | |
1141 StoreFeedbackVectorSlot(slot, feedback); | |
1142 | |
1143 // No need for a write barrier, we are storing a Smi in the feedback vector. | 1136 // No need for a write barrier, we are storing a Smi in the feedback vector. |
1144 __ LoadHeapObject(ebx, FeedbackVector()); | 1137 __ LoadHeapObject(ebx, FeedbackVector()); |
1145 __ mov(FieldOperand(ebx, FixedArray::OffsetOfElementAt(slot)), | 1138 __ mov(FieldOperand(ebx, FixedArray::OffsetOfElementAt(slot)), |
1146 Immediate(Smi::FromInt(TypeFeedbackInfo::kForInSlowCaseMarker))); | 1139 Immediate(TypeFeedbackInfo::MegamorphicSentinel(isolate()))); |
1147 | 1140 |
1148 __ mov(ebx, Immediate(Smi::FromInt(1))); // Smi indicates slow check | 1141 __ mov(ebx, Immediate(Smi::FromInt(1))); // Smi indicates slow check |
1149 __ mov(ecx, Operand(esp, 0 * kPointerSize)); // Get enumerated object | 1142 __ mov(ecx, Operand(esp, 0 * kPointerSize)); // Get enumerated object |
1150 STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_SPEC_OBJECT_TYPE); | 1143 STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_SPEC_OBJECT_TYPE); |
1151 __ CmpObjectType(ecx, LAST_JS_PROXY_TYPE, ecx); | 1144 __ CmpObjectType(ecx, LAST_JS_PROXY_TYPE, ecx); |
1152 __ j(above, &non_proxy); | 1145 __ j(above, &non_proxy); |
1153 __ Move(ebx, Immediate(Smi::FromInt(0))); // Zero indicates proxy | 1146 __ Move(ebx, Immediate(Smi::FromInt(0))); // Zero indicates proxy |
1154 __ bind(&non_proxy); | 1147 __ bind(&non_proxy); |
1155 __ push(ebx); // Smi | 1148 __ push(ebx); // Smi |
1156 __ push(eax); // Array | 1149 __ push(eax); // Array |
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2655 ZoneList<Expression*>* args = expr->arguments(); | 2648 ZoneList<Expression*>* args = expr->arguments(); |
2656 int arg_count = args->length(); | 2649 int arg_count = args->length(); |
2657 { PreservePositionScope scope(masm()->positions_recorder()); | 2650 { PreservePositionScope scope(masm()->positions_recorder()); |
2658 for (int i = 0; i < arg_count; i++) { | 2651 for (int i = 0; i < arg_count; i++) { |
2659 VisitForStackValue(args->at(i)); | 2652 VisitForStackValue(args->at(i)); |
2660 } | 2653 } |
2661 } | 2654 } |
2662 // Record source position for debugger. | 2655 // Record source position for debugger. |
2663 SetSourcePosition(expr->position()); | 2656 SetSourcePosition(expr->position()); |
2664 | 2657 |
2665 Handle<Object> uninitialized = | |
2666 TypeFeedbackInfo::UninitializedSentinel(isolate()); | |
2667 StoreFeedbackVectorSlot(expr->CallFeedbackSlot(), uninitialized); | |
2668 __ LoadHeapObject(ebx, FeedbackVector()); | 2658 __ LoadHeapObject(ebx, FeedbackVector()); |
2669 __ mov(edx, Immediate(Smi::FromInt(expr->CallFeedbackSlot()))); | 2659 __ mov(edx, Immediate(Smi::FromInt(expr->CallFeedbackSlot()))); |
2670 | 2660 |
2671 // Record call targets in unoptimized code. | 2661 // Record call targets in unoptimized code. |
2672 CallFunctionStub stub(isolate(), arg_count, RECORD_CALL_TARGET); | 2662 CallFunctionStub stub(isolate(), arg_count, RECORD_CALL_TARGET); |
2673 __ mov(edi, Operand(esp, (arg_count + 1) * kPointerSize)); | 2663 __ mov(edi, Operand(esp, (arg_count + 1) * kPointerSize)); |
2674 __ CallStub(&stub); | 2664 __ CallStub(&stub); |
2675 | 2665 |
2676 RecordJSReturnSite(expr); | 2666 RecordJSReturnSite(expr); |
2677 // Restore context register. | 2667 // Restore context register. |
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2835 | 2825 |
2836 // Call the construct call builtin that handles allocation and | 2826 // Call the construct call builtin that handles allocation and |
2837 // constructor invocation. | 2827 // constructor invocation. |
2838 SetSourcePosition(expr->position()); | 2828 SetSourcePosition(expr->position()); |
2839 | 2829 |
2840 // Load function and argument count into edi and eax. | 2830 // Load function and argument count into edi and eax. |
2841 __ Move(eax, Immediate(arg_count)); | 2831 __ Move(eax, Immediate(arg_count)); |
2842 __ mov(edi, Operand(esp, arg_count * kPointerSize)); | 2832 __ mov(edi, Operand(esp, arg_count * kPointerSize)); |
2843 | 2833 |
2844 // Record call targets in unoptimized code. | 2834 // Record call targets in unoptimized code. |
2845 Handle<Object> uninitialized = | |
2846 TypeFeedbackInfo::UninitializedSentinel(isolate()); | |
2847 StoreFeedbackVectorSlot(expr->CallNewFeedbackSlot(), uninitialized); | |
2848 if (FLAG_pretenuring_call_new) { | 2835 if (FLAG_pretenuring_call_new) { |
2849 StoreFeedbackVectorSlot(expr->AllocationSiteFeedbackSlot(), | 2836 EnsureSlotContainsAllocationSite(expr->AllocationSiteFeedbackSlot()); |
2850 isolate()->factory()->NewAllocationSite()); | |
2851 ASSERT(expr->AllocationSiteFeedbackSlot() == | 2837 ASSERT(expr->AllocationSiteFeedbackSlot() == |
2852 expr->CallNewFeedbackSlot() + 1); | 2838 expr->CallNewFeedbackSlot() + 1); |
2853 } | 2839 } |
2854 | 2840 |
2855 __ LoadHeapObject(ebx, FeedbackVector()); | 2841 __ LoadHeapObject(ebx, FeedbackVector()); |
2856 __ mov(edx, Immediate(Smi::FromInt(expr->CallNewFeedbackSlot()))); | 2842 __ mov(edx, Immediate(Smi::FromInt(expr->CallNewFeedbackSlot()))); |
2857 | 2843 |
2858 CallConstructStub stub(isolate(), RECORD_CALL_TARGET); | 2844 CallConstructStub stub(isolate(), RECORD_CALL_TARGET); |
2859 __ call(stub.GetCode(), RelocInfo::CONSTRUCT_CALL); | 2845 __ call(stub.GetCode(), RelocInfo::CONSTRUCT_CALL); |
2860 PrepareForBailoutForId(expr->ReturnId(), TOS_REG); | 2846 PrepareForBailoutForId(expr->ReturnId(), TOS_REG); |
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4892 ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), | 4878 ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), |
4893 Assembler::target_address_at(call_target_address, | 4879 Assembler::target_address_at(call_target_address, |
4894 unoptimized_code)); | 4880 unoptimized_code)); |
4895 return OSR_AFTER_STACK_CHECK; | 4881 return OSR_AFTER_STACK_CHECK; |
4896 } | 4882 } |
4897 | 4883 |
4898 | 4884 |
4899 } } // namespace v8::internal | 4885 } } // namespace v8::internal |
4900 | 4886 |
4901 #endif // V8_TARGET_ARCH_IA32 | 4887 #endif // V8_TARGET_ARCH_IA32 |
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