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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 rbp: our caller's frame pointer | 133 // o rbp: our caller's frame pointer |
134 // o rsp: stack pointer (pointing to return address) | 134 // o rsp: 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-x64.h for its layout. | 137 // frames-x64.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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1164 __ jmp(&loop); | 1162 __ jmp(&loop); |
1165 | 1163 |
1166 __ bind(&no_descriptors); | 1164 __ bind(&no_descriptors); |
1167 __ addp(rsp, Immediate(kPointerSize)); | 1165 __ addp(rsp, Immediate(kPointerSize)); |
1168 __ jmp(&exit); | 1166 __ jmp(&exit); |
1169 | 1167 |
1170 // We got a fixed array in register rax. Iterate through that. | 1168 // We got a fixed array in register rax. Iterate through that. |
1171 Label non_proxy; | 1169 Label non_proxy; |
1172 __ bind(&fixed_array); | 1170 __ bind(&fixed_array); |
1173 | 1171 |
1174 Handle<Object> feedback = Handle<Object>( | |
1175 Smi::FromInt(TypeFeedbackInfo::kForInFastCaseMarker), | |
1176 isolate()); | |
1177 StoreFeedbackVectorSlot(slot, feedback); | |
1178 | |
1179 // No need for a write barrier, we are storing a Smi in the feedback vector. | 1172 // No need for a write barrier, we are storing a Smi in the feedback vector. |
1180 __ Move(rbx, FeedbackVector()); | 1173 __ Move(rbx, FeedbackVector()); |
1181 __ Move(FieldOperand(rbx, FixedArray::OffsetOfElementAt(slot)), | 1174 __ Move(FieldOperand(rbx, FixedArray::OffsetOfElementAt(slot)), |
1182 Smi::FromInt(TypeFeedbackInfo::kForInSlowCaseMarker)); | 1175 TypeFeedbackInfo::MegamorphicSentinel(isolate())); |
1183 __ Move(rbx, Smi::FromInt(1)); // Smi indicates slow check | 1176 __ Move(rbx, Smi::FromInt(1)); // Smi indicates slow check |
1184 __ movp(rcx, Operand(rsp, 0 * kPointerSize)); // Get enumerated object | 1177 __ movp(rcx, Operand(rsp, 0 * kPointerSize)); // Get enumerated object |
1185 STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_SPEC_OBJECT_TYPE); | 1178 STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_SPEC_OBJECT_TYPE); |
1186 __ CmpObjectType(rcx, LAST_JS_PROXY_TYPE, rcx); | 1179 __ CmpObjectType(rcx, LAST_JS_PROXY_TYPE, rcx); |
1187 __ j(above, &non_proxy); | 1180 __ j(above, &non_proxy); |
1188 __ Move(rbx, Smi::FromInt(0)); // Zero indicates proxy | 1181 __ Move(rbx, Smi::FromInt(0)); // Zero indicates proxy |
1189 __ bind(&non_proxy); | 1182 __ bind(&non_proxy); |
1190 __ Push(rbx); // Smi | 1183 __ Push(rbx); // Smi |
1191 __ Push(rax); // Array | 1184 __ Push(rax); // Array |
1192 __ movp(rax, FieldOperand(rax, FixedArray::kLengthOffset)); | 1185 __ movp(rax, FieldOperand(rax, FixedArray::kLengthOffset)); |
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2650 ZoneList<Expression*>* args = expr->arguments(); | 2643 ZoneList<Expression*>* args = expr->arguments(); |
2651 int arg_count = args->length(); | 2644 int arg_count = args->length(); |
2652 { PreservePositionScope scope(masm()->positions_recorder()); | 2645 { PreservePositionScope scope(masm()->positions_recorder()); |
2653 for (int i = 0; i < arg_count; i++) { | 2646 for (int i = 0; i < arg_count; i++) { |
2654 VisitForStackValue(args->at(i)); | 2647 VisitForStackValue(args->at(i)); |
2655 } | 2648 } |
2656 } | 2649 } |
2657 // Record source position for debugger. | 2650 // Record source position for debugger. |
2658 SetSourcePosition(expr->position()); | 2651 SetSourcePosition(expr->position()); |
2659 | 2652 |
2660 Handle<Object> uninitialized = | |
2661 TypeFeedbackInfo::UninitializedSentinel(isolate()); | |
2662 StoreFeedbackVectorSlot(expr->CallFeedbackSlot(), uninitialized); | |
2663 __ Move(rbx, FeedbackVector()); | 2653 __ Move(rbx, FeedbackVector()); |
2664 __ Move(rdx, Smi::FromInt(expr->CallFeedbackSlot())); | 2654 __ Move(rdx, Smi::FromInt(expr->CallFeedbackSlot())); |
2665 | 2655 |
2666 // Record call targets in unoptimized code. | 2656 // Record call targets in unoptimized code. |
2667 CallFunctionStub stub(isolate(), arg_count, RECORD_CALL_TARGET); | 2657 CallFunctionStub stub(isolate(), arg_count, RECORD_CALL_TARGET); |
2668 __ movp(rdi, Operand(rsp, (arg_count + 1) * kPointerSize)); | 2658 __ movp(rdi, Operand(rsp, (arg_count + 1) * kPointerSize)); |
2669 __ CallStub(&stub); | 2659 __ CallStub(&stub); |
2670 RecordJSReturnSite(expr); | 2660 RecordJSReturnSite(expr); |
2671 // Restore context register. | 2661 // Restore context register. |
2672 __ movp(rsi, Operand(rbp, StandardFrameConstants::kContextOffset)); | 2662 __ movp(rsi, Operand(rbp, StandardFrameConstants::kContextOffset)); |
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2830 | 2820 |
2831 // Call the construct call builtin that handles allocation and | 2821 // Call the construct call builtin that handles allocation and |
2832 // constructor invocation. | 2822 // constructor invocation. |
2833 SetSourcePosition(expr->position()); | 2823 SetSourcePosition(expr->position()); |
2834 | 2824 |
2835 // Load function and argument count into rdi and rax. | 2825 // Load function and argument count into rdi and rax. |
2836 __ Set(rax, arg_count); | 2826 __ Set(rax, arg_count); |
2837 __ movp(rdi, Operand(rsp, arg_count * kPointerSize)); | 2827 __ movp(rdi, Operand(rsp, arg_count * kPointerSize)); |
2838 | 2828 |
2839 // Record call targets in unoptimized code, but not in the snapshot. | 2829 // Record call targets in unoptimized code, but not in the snapshot. |
2840 Handle<Object> uninitialized = | |
2841 TypeFeedbackInfo::UninitializedSentinel(isolate()); | |
2842 StoreFeedbackVectorSlot(expr->CallNewFeedbackSlot(), uninitialized); | |
2843 if (FLAG_pretenuring_call_new) { | 2830 if (FLAG_pretenuring_call_new) { |
2844 StoreFeedbackVectorSlot(expr->AllocationSiteFeedbackSlot(), | 2831 EnsureSlotContainsAllocationSite(expr->AllocationSiteFeedbackSlot()); |
2845 isolate()->factory()->NewAllocationSite()); | |
2846 ASSERT(expr->AllocationSiteFeedbackSlot() == | 2832 ASSERT(expr->AllocationSiteFeedbackSlot() == |
2847 expr->CallNewFeedbackSlot() + 1); | 2833 expr->CallNewFeedbackSlot() + 1); |
2848 } | 2834 } |
2849 | 2835 |
2850 __ Move(rbx, FeedbackVector()); | 2836 __ Move(rbx, FeedbackVector()); |
2851 __ Move(rdx, Smi::FromInt(expr->CallNewFeedbackSlot())); | 2837 __ Move(rdx, Smi::FromInt(expr->CallNewFeedbackSlot())); |
2852 | 2838 |
2853 CallConstructStub stub(isolate(), RECORD_CALL_TARGET); | 2839 CallConstructStub stub(isolate(), RECORD_CALL_TARGET); |
2854 __ Call(stub.GetCode(), RelocInfo::CONSTRUCT_CALL); | 2840 __ Call(stub.GetCode(), RelocInfo::CONSTRUCT_CALL); |
2855 PrepareForBailoutForId(expr->ReturnId(), TOS_REG); | 2841 PrepareForBailoutForId(expr->ReturnId(), TOS_REG); |
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4898 ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), | 4884 ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), |
4899 Assembler::target_address_at(call_target_address, | 4885 Assembler::target_address_at(call_target_address, |
4900 unoptimized_code)); | 4886 unoptimized_code)); |
4901 return OSR_AFTER_STACK_CHECK; | 4887 return OSR_AFTER_STACK_CHECK; |
4902 } | 4888 } |
4903 | 4889 |
4904 | 4890 |
4905 } } // namespace v8::internal | 4891 } } // namespace v8::internal |
4906 | 4892 |
4907 #endif // V8_TARGET_ARCH_X64 | 4893 #endif // V8_TARGET_ARCH_X64 |
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