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Issue 945313003: emit premonomorphic ics for keyed loads/stores in optimized code (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 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 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "src/v8.h" 5 #include "src/v8.h"
6 6
7 #include "src/accessors.h" 7 #include "src/accessors.h"
8 #include "src/api.h" 8 #include "src/api.h"
9 #include "src/arguments.h" 9 #include "src/arguments.h"
10 #include "src/base/bits.h" 10 #include "src/base/bits.h"
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937 if (FLAG_vector_ics) { 937 if (FLAG_vector_ics) {
938 return LoadICTrampolineStub(isolate, LoadICState(extra_state)).GetCode(); 938 return LoadICTrampolineStub(isolate, LoadICState(extra_state)).GetCode();
939 } 939 }
940 940
941 return PropertyICCompiler::ComputeLoad(isolate, UNINITIALIZED, extra_state); 941 return PropertyICCompiler::ComputeLoad(isolate, UNINITIALIZED, extra_state);
942 } 942 }
943 943
944 944
945 Handle<Code> LoadIC::initialize_stub_in_optimized_code( 945 Handle<Code> LoadIC::initialize_stub_in_optimized_code(
946 Isolate* isolate, ExtraICState extra_state, State initialization_state) { 946 Isolate* isolate, ExtraICState extra_state, State initialization_state) {
947 DCHECK(initialization_state == UNINITIALIZED ||
948 initialization_state == PREMONOMORPHIC ||
949 initialization_state == MEGAMORPHIC);
950 if (FLAG_vector_ics) { 947 if (FLAG_vector_ics) {
951 return VectorLoadStub(isolate, LoadICState(extra_state)).GetCode(); 948 return VectorLoadStub(isolate, LoadICState(extra_state)).GetCode();
952 } 949 }
953 return PropertyICCompiler::ComputeLoad(isolate, initialization_state, 950 return PropertyICCompiler::ComputeLoad(isolate, initialization_state,
954 extra_state); 951 extra_state);
955 } 952 }
956 953
957 954
958 Handle<Code> KeyedLoadIC::initialize_stub(Isolate* isolate) { 955 Handle<Code> KeyedLoadIC::initialize_stub(Isolate* isolate) {
959 if (FLAG_vector_ics) { 956 if (FLAG_vector_ics) {
960 return KeyedLoadICTrampolineStub(isolate).GetCode(); 957 return KeyedLoadICTrampolineStub(isolate).GetCode();
961 } 958 }
962 959
963 return isolate->builtins()->KeyedLoadIC_Initialize(); 960 return isolate->builtins()->KeyedLoadIC_Initialize();
964 } 961 }
965 962
966 963
967 Handle<Code> KeyedLoadIC::initialize_stub_in_optimized_code(Isolate* isolate) { 964 Handle<Code> KeyedLoadIC::initialize_stub_in_optimized_code(
965 Isolate* isolate, State initialization_state) {
968 if (FLAG_vector_ics) { 966 if (FLAG_vector_ics) {
969 return VectorKeyedLoadStub(isolate).GetCode(); 967 return VectorKeyedLoadStub(isolate).GetCode();
970 } 968 }
971 return initialize_stub(isolate); 969 switch (initialization_state) {
970 case UNINITIALIZED:
971 return isolate->builtins()->KeyedLoadIC_Initialize();
972 case PREMONOMORPHIC:
973 return isolate->builtins()->KeyedLoadIC_PreMonomorphic();
974 case MEGAMORPHIC:
975 return isolate->builtins()->KeyedLoadIC_Megamorphic();
976 default:
977 UNREACHABLE();
978 }
979 return Handle<Code>();
972 } 980 }
973 981
974 982
983 Handle<Code> KeyedStoreIC::initialize_stub(Isolate* isolate,
984 LanguageMode language_mode,
985 State initialization_state) {
986 switch (initialization_state) {
987 case UNINITIALIZED:
988 return is_strict(language_mode)
989 ? isolate->builtins()->KeyedStoreIC_Initialize_Strict()
990 : isolate->builtins()->KeyedStoreIC_Initialize();
991 case PREMONOMORPHIC:
992 return is_strict(language_mode)
993 ? isolate->builtins()->KeyedStoreIC_PreMonomorphic_Strict()
994 : isolate->builtins()->KeyedStoreIC_PreMonomorphic();
995 case MEGAMORPHIC:
996 return is_strict(language_mode)
997 ? isolate->builtins()->KeyedStoreIC_Megamorphic_Strict()
998 : isolate->builtins()->KeyedStoreIC_Megamorphic();
999 default:
1000 UNREACHABLE();
1001 }
1002 return Handle<Code>();
1003 }
1004
1005
975 Handle<Code> LoadIC::megamorphic_stub() { 1006 Handle<Code> LoadIC::megamorphic_stub() {
976 if (kind() == Code::LOAD_IC) { 1007 if (kind() == Code::LOAD_IC) {
977 MegamorphicLoadStub stub(isolate(), LoadICState(extra_ic_state())); 1008 MegamorphicLoadStub stub(isolate(), LoadICState(extra_ic_state()));
978 return stub.GetCode(); 1009 return stub.GetCode();
979 } else { 1010 } else {
980 DCHECK_EQ(Code::KEYED_LOAD_IC, kind()); 1011 DCHECK_EQ(Code::KEYED_LOAD_IC, kind());
981 return KeyedLoadIC::ChooseMegamorphicStub(isolate()); 1012 return KeyedLoadIC::ChooseMegamorphicStub(isolate());
982 } 1013 }
983 } 1014 }
984 1015
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2967 static const Address IC_utilities[] = { 2998 static const Address IC_utilities[] = {
2968 #define ADDR(name) FUNCTION_ADDR(name), 2999 #define ADDR(name) FUNCTION_ADDR(name),
2969 IC_UTIL_LIST(ADDR) NULL 3000 IC_UTIL_LIST(ADDR) NULL
2970 #undef ADDR 3001 #undef ADDR
2971 }; 3002 };
2972 3003
2973 3004
2974 Address IC::AddressFromUtilityId(IC::UtilityId id) { return IC_utilities[id]; } 3005 Address IC::AddressFromUtilityId(IC::UtilityId id) { return IC_utilities[id]; }
2975 } 3006 }
2976 } // namespace v8::internal 3007 } // namespace v8::internal
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