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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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| 49 namespace internal { | 49 namespace internal { |
| 50 | 50 |
| 51 #define DEFINE_COMPILE(type) \ | 51 #define DEFINE_COMPILE(type) \ |
| 52 LInstruction* H##type::CompileToLithium(LChunkBuilder* builder) { \ | 52 LInstruction* H##type::CompileToLithium(LChunkBuilder* builder) { \ |
| 53 return builder->Do##type(this); \ | 53 return builder->Do##type(this); \ |
| 54 } | 54 } |
| 55 HYDROGEN_CONCRETE_INSTRUCTION_LIST(DEFINE_COMPILE) | 55 HYDROGEN_CONCRETE_INSTRUCTION_LIST(DEFINE_COMPILE) |
| 56 #undef DEFINE_COMPILE | 56 #undef DEFINE_COMPILE |
| 57 | 57 |
| 58 | 58 |
| 59 int HValue::LoopWeight() const { | |
| 60 const int w = FLAG_loop_weight; | |
| 61 static const int weights[] = { 1, w, w*w, w*w*w, w*w*w*w }; | |
| 62 return weights[Min(block()->LoopNestingDepth(), | |
| 63 static_cast<int>(ARRAY_SIZE(weights)-1))]; | |
| 64 } | |
| 65 | |
| 66 | |
| 67 Isolate* HValue::isolate() const { | 59 Isolate* HValue::isolate() const { |
| 68 ASSERT(block() != NULL); | 60 ASSERT(block() != NULL); |
| 69 return block()->isolate(); | 61 return block()->isolate(); |
| 70 } | 62 } |
| 71 | 63 |
| 72 | 64 |
| 73 void HValue::AssumeRepresentation(Representation r) { | 65 void HValue::AssumeRepresentation(Representation r) { |
| 74 if (CheckFlag(kFlexibleRepresentation)) { | 66 if (CheckFlag(kFlexibleRepresentation)) { |
| 75 ChangeRepresentation(r); | 67 ChangeRepresentation(r); |
| 76 // The representation of the value is dictated by type feedback and | 68 // The representation of the value is dictated by type feedback and |
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| 101 | 93 |
| 102 for (HUseIterator it(uses()); !it.Done(); it.Advance()) { | 94 for (HUseIterator it(uses()); !it.Done(); it.Advance()) { |
| 103 HValue* use = it.value(); | 95 HValue* use = it.value(); |
| 104 Representation rep = use->observed_input_representation(it.index()); | 96 Representation rep = use->observed_input_representation(it.index()); |
| 105 if (rep.IsNone()) continue; | 97 if (rep.IsNone()) continue; |
| 106 if (FLAG_trace_representation) { | 98 if (FLAG_trace_representation) { |
| 107 PrintF("#%d %s is used by #%d %s as %s%s\n", | 99 PrintF("#%d %s is used by #%d %s as %s%s\n", |
| 108 id(), Mnemonic(), use->id(), use->Mnemonic(), rep.Mnemonic(), | 100 id(), Mnemonic(), use->id(), use->Mnemonic(), rep.Mnemonic(), |
| 109 (use->CheckFlag(kTruncatingToInt32) ? "-trunc" : "")); | 101 (use->CheckFlag(kTruncatingToInt32) ? "-trunc" : "")); |
| 110 } | 102 } |
| 111 use_count[rep.kind()] += use->LoopWeight(); | 103 use_count[rep.kind()] += 1; |
| 112 } | 104 } |
| 113 if (IsPhi()) HPhi::cast(this)->AddIndirectUsesTo(&use_count[0]); | 105 if (IsPhi()) HPhi::cast(this)->AddIndirectUsesTo(&use_count[0]); |
| 114 int tagged_count = use_count[Representation::kTagged]; | 106 int tagged_count = use_count[Representation::kTagged]; |
| 115 int double_count = use_count[Representation::kDouble]; | 107 int double_count = use_count[Representation::kDouble]; |
| 116 int int32_count = use_count[Representation::kInteger32]; | 108 int int32_count = use_count[Representation::kInteger32]; |
| 117 int smi_count = use_count[Representation::kSmi]; | 109 int smi_count = use_count[Representation::kSmi]; |
| 118 | 110 |
| 119 if (tagged_count > 0) return Representation::Tagged(); | 111 if (tagged_count > 0) return Representation::Tagged(); |
| 120 if (double_count > 0) return Representation::Double(); | 112 if (double_count > 0) return Representation::Double(); |
| 121 if (int32_count > 0) return Representation::Integer32(); | 113 if (int32_count > 0) return Representation::Integer32(); |
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| 844 } | 836 } |
| 845 | 837 |
| 846 | 838 |
| 847 void HUnaryCall::PrintDataTo(StringStream* stream) { | 839 void HUnaryCall::PrintDataTo(StringStream* stream) { |
| 848 value()->PrintNameTo(stream); | 840 value()->PrintNameTo(stream); |
| 849 stream->Add(" "); | 841 stream->Add(" "); |
| 850 stream->Add("#%d", argument_count()); | 842 stream->Add("#%d", argument_count()); |
| 851 } | 843 } |
| 852 | 844 |
| 853 | 845 |
| 846 void HCallJSFunction::PrintDataTo(StringStream* stream) { |
| 847 OperandAt(0)->PrintNameTo(stream); |
| 848 stream->Add(" "); |
| 849 OperandAt(1)->PrintNameTo(stream); |
| 850 stream->Add(" "); |
| 851 stream->Add("#%d", argument_count()); |
| 852 } |
| 853 |
| 854 |
| 855 HCallJSFunction* HCallJSFunction::New( |
| 856 Zone* zone, |
| 857 HValue* context, |
| 858 HValue* function, |
| 859 int argument_count, |
| 860 bool pass_argument_count) { |
| 861 bool has_stack_check = false; |
| 862 if (function->IsConstant()) { |
| 863 HConstant* fun_const = HConstant::cast(function); |
| 864 Handle<JSFunction> jsfun = |
| 865 Handle<JSFunction>::cast(fun_const->handle(zone->isolate())); |
| 866 has_stack_check = !jsfun.is_null() && |
| 867 (jsfun->code()->kind() == Code::FUNCTION || |
| 868 jsfun->code()->kind() == Code::OPTIMIZED_FUNCTION); |
| 869 } |
| 870 |
| 871 return new(zone) HCallJSFunction( |
| 872 function, argument_count, pass_argument_count, |
| 873 has_stack_check); |
| 874 } |
| 875 |
| 876 |
| 877 |
| 878 |
| 854 void HBinaryCall::PrintDataTo(StringStream* stream) { | 879 void HBinaryCall::PrintDataTo(StringStream* stream) { |
| 855 first()->PrintNameTo(stream); | 880 first()->PrintNameTo(stream); |
| 856 stream->Add(" "); | 881 stream->Add(" "); |
| 857 second()->PrintNameTo(stream); | 882 second()->PrintNameTo(stream); |
| 858 stream->Add(" "); | 883 stream->Add(" "); |
| 859 stream->Add("#%d", argument_count()); | 884 stream->Add("#%d", argument_count()); |
| 860 } | 885 } |
| 861 | 886 |
| 862 | 887 |
| 863 void HBoundsCheck::ApplyIndexChange() { | 888 void HBoundsCheck::ApplyIndexChange() { |
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| 969 | 994 |
| 970 | 995 |
| 971 void HBoundsCheckBaseIndexInformation::PrintDataTo(StringStream* stream) { | 996 void HBoundsCheckBaseIndexInformation::PrintDataTo(StringStream* stream) { |
| 972 stream->Add("base: "); | 997 stream->Add("base: "); |
| 973 base_index()->PrintNameTo(stream); | 998 base_index()->PrintNameTo(stream); |
| 974 stream->Add(", check: "); | 999 stream->Add(", check: "); |
| 975 base_index()->PrintNameTo(stream); | 1000 base_index()->PrintNameTo(stream); |
| 976 } | 1001 } |
| 977 | 1002 |
| 978 | 1003 |
| 979 void HCallConstantFunction::PrintDataTo(StringStream* stream) { | 1004 void HCallWithDescriptor::PrintDataTo(StringStream* stream) { |
| 980 if (IsApplyFunction()) { | 1005 for (int i = 0; i < OperandCount(); i++) { |
| 981 stream->Add("optimized apply "); | 1006 OperandAt(i)->PrintNameTo(stream); |
| 982 } else { | 1007 stream->Add(" "); |
| 983 stream->Add("%o ", function()->shared()->DebugName()); | |
| 984 } | 1008 } |
| 985 stream->Add("#%d", argument_count()); | 1009 stream->Add("#%d", argument_count()); |
| 986 } | 1010 } |
| 987 | 1011 |
| 988 | 1012 |
| 989 void HCallNamed::PrintDataTo(StringStream* stream) { | |
| 990 stream->Add("%o ", *name()); | |
| 991 HUnaryCall::PrintDataTo(stream); | |
| 992 } | |
| 993 | |
| 994 | |
| 995 void HCallGlobal::PrintDataTo(StringStream* stream) { | |
| 996 stream->Add("%o ", *name()); | |
| 997 HUnaryCall::PrintDataTo(stream); | |
| 998 } | |
| 999 | |
| 1000 | |
| 1001 void HCallKnownGlobal::PrintDataTo(StringStream* stream) { | |
| 1002 stream->Add("%o ", target()->shared()->DebugName()); | |
| 1003 stream->Add("#%d", argument_count()); | |
| 1004 } | |
| 1005 | |
| 1006 | |
| 1007 void HCallNewArray::PrintDataTo(StringStream* stream) { | 1013 void HCallNewArray::PrintDataTo(StringStream* stream) { |
| 1008 stream->Add(ElementsKindToString(elements_kind())); | 1014 stream->Add(ElementsKindToString(elements_kind())); |
| 1009 stream->Add(" "); | 1015 stream->Add(" "); |
| 1010 HBinaryCall::PrintDataTo(stream); | 1016 HBinaryCall::PrintDataTo(stream); |
| 1011 } | 1017 } |
| 1012 | 1018 |
| 1013 | 1019 |
| 1014 void HCallRuntime::PrintDataTo(StringStream* stream) { | 1020 void HCallRuntime::PrintDataTo(StringStream* stream) { |
| 1015 stream->Add("%o ", *name()); | 1021 stream->Add("%o ", *name()); |
| 1016 if (save_doubles() == kSaveFPRegs) { | 1022 if (save_doubles() == kSaveFPRegs) { |
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| 2352 phi_id_ = phi_id; | 2358 phi_id_ = phi_id; |
| 2353 // Compute a conservative approximation of truncating uses before inferring | 2359 // Compute a conservative approximation of truncating uses before inferring |
| 2354 // representations. The proper, exact computation will be done later, when | 2360 // representations. The proper, exact computation will be done later, when |
| 2355 // inserting representation changes. | 2361 // inserting representation changes. |
| 2356 SetFlag(kTruncatingToSmi); | 2362 SetFlag(kTruncatingToSmi); |
| 2357 SetFlag(kTruncatingToInt32); | 2363 SetFlag(kTruncatingToInt32); |
| 2358 for (HUseIterator it(uses()); !it.Done(); it.Advance()) { | 2364 for (HUseIterator it(uses()); !it.Done(); it.Advance()) { |
| 2359 HValue* value = it.value(); | 2365 HValue* value = it.value(); |
| 2360 if (!value->IsPhi()) { | 2366 if (!value->IsPhi()) { |
| 2361 Representation rep = value->observed_input_representation(it.index()); | 2367 Representation rep = value->observed_input_representation(it.index()); |
| 2362 non_phi_uses_[rep.kind()] += value->LoopWeight(); | 2368 non_phi_uses_[rep.kind()] += 1; |
| 2363 if (FLAG_trace_representation) { | 2369 if (FLAG_trace_representation) { |
| 2364 PrintF("#%d Phi is used by real #%d %s as %s\n", | 2370 PrintF("#%d Phi is used by real #%d %s as %s\n", |
| 2365 id(), value->id(), value->Mnemonic(), rep.Mnemonic()); | 2371 id(), value->id(), value->Mnemonic(), rep.Mnemonic()); |
| 2366 } | 2372 } |
| 2367 if (!value->IsSimulate()) { | 2373 if (!value->IsSimulate()) { |
| 2368 if (!value->CheckFlag(kTruncatingToSmi)) { | 2374 if (!value->CheckFlag(kTruncatingToSmi)) { |
| 2369 ClearFlag(kTruncatingToSmi); | 2375 ClearFlag(kTruncatingToSmi); |
| 2370 } | 2376 } |
| 2371 if (!value->CheckFlag(kTruncatingToInt32)) { | 2377 if (!value->CheckFlag(kTruncatingToInt32)) { |
| 2372 ClearFlag(kTruncatingToInt32); | 2378 ClearFlag(kTruncatingToInt32); |
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| 4447 break; | 4453 break; |
| 4448 case kExternalMemory: | 4454 case kExternalMemory: |
| 4449 stream->Add("[external-memory]"); | 4455 stream->Add("[external-memory]"); |
| 4450 break; | 4456 break; |
| 4451 } | 4457 } |
| 4452 | 4458 |
| 4453 stream->Add("@%d", offset()); | 4459 stream->Add("@%d", offset()); |
| 4454 } | 4460 } |
| 4455 | 4461 |
| 4456 } } // namespace v8::internal | 4462 } } // namespace v8::internal |
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