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v8/src/builtins.h
mvstanton@chromium.org ecac8b0877 Eliminate special keyed load string stub in favor of uniform handlers. 
KeyedLoadIC installs a special case if the receiver is a string.
Although there are several maps for strings, in practice we seem to
be able to treat them individually because a given KeyedLoad site
only sees 1-2 string types.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/602773003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24661 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-10-16 11:42:47 +00:00

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// Copyright 2011 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_BUILTINS_H_
#define V8_BUILTINS_H_
namespace v8 {
namespace internal {
// Specifies extra arguments required by a C++ builtin.
enum BuiltinExtraArguments {
NO_EXTRA_ARGUMENTS = 0,
NEEDS_CALLED_FUNCTION = 1
};
#define CODE_AGE_LIST_WITH_ARG(V, A) \
V(Quadragenarian, A) \
V(Quinquagenarian, A) \
V(Sexagenarian, A) \
V(Septuagenarian, A) \
V(Octogenarian, A)
#define CODE_AGE_LIST_IGNORE_ARG(X, V) V(X)
#define CODE_AGE_LIST(V) \
CODE_AGE_LIST_WITH_ARG(CODE_AGE_LIST_IGNORE_ARG, V)
#define CODE_AGE_LIST_COMPLETE(V) \
V(NotExecuted) \
V(ExecutedOnce) \
V(NoAge) \
CODE_AGE_LIST_WITH_ARG(CODE_AGE_LIST_IGNORE_ARG, V)
#define DECLARE_CODE_AGE_BUILTIN(C, V) \
V(Make##C##CodeYoungAgainOddMarking, BUILTIN, \
UNINITIALIZED, kNoExtraICState) \
V(Make##C##CodeYoungAgainEvenMarking, BUILTIN, \
UNINITIALIZED, kNoExtraICState)
// Define list of builtins implemented in C++.
#define BUILTIN_LIST_C(V) \
V(Illegal, NO_EXTRA_ARGUMENTS) \
\
V(EmptyFunction, NO_EXTRA_ARGUMENTS) \
\
V(ArrayPush, NO_EXTRA_ARGUMENTS) \
V(ArrayPop, NO_EXTRA_ARGUMENTS) \
V(ArrayShift, NO_EXTRA_ARGUMENTS) \
V(ArrayUnshift, NO_EXTRA_ARGUMENTS) \
V(ArraySlice, NO_EXTRA_ARGUMENTS) \
V(ArraySplice, NO_EXTRA_ARGUMENTS) \
V(ArrayConcat, NO_EXTRA_ARGUMENTS) \
\
V(HandleApiCall, NEEDS_CALLED_FUNCTION) \
V(HandleApiCallConstruct, NEEDS_CALLED_FUNCTION) \
V(HandleApiCallAsFunction, NO_EXTRA_ARGUMENTS) \
V(HandleApiCallAsConstructor, NO_EXTRA_ARGUMENTS) \
\
V(StrictModePoisonPill, NO_EXTRA_ARGUMENTS) \
V(GeneratorPoisonPill, NO_EXTRA_ARGUMENTS)
// Define list of builtins implemented in assembly.
#define BUILTIN_LIST_A(V) \
V(ArgumentsAdaptorTrampoline, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(InOptimizationQueue, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(JSConstructStubGeneric, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(JSConstructStubApi, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(JSEntryTrampoline, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(JSConstructEntryTrampoline, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(CompileLazy, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(CompileOptimized, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(CompileOptimizedConcurrent, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(NotifyDeoptimized, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(NotifySoftDeoptimized, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(NotifyLazyDeoptimized, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(NotifyStubFailure, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(NotifyStubFailureSaveDoubles, BUILTIN, UNINITIALIZED, kNoExtraICState) \
\
V(LoadIC_Miss, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(KeyedLoadIC_Miss, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(StoreIC_Miss, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(KeyedStoreIC_Miss, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(LoadIC_Getter_ForDeopt, LOAD_IC, MONOMORPHIC, kNoExtraICState) \
V(KeyedLoadIC_Initialize, KEYED_LOAD_IC, UNINITIALIZED, kNoExtraICState) \
V(KeyedLoadIC_PreMonomorphic, KEYED_LOAD_IC, PREMONOMORPHIC, \
kNoExtraICState) \
V(KeyedLoadIC_Generic, KEYED_LOAD_IC, GENERIC, kNoExtraICState) \
\
V(StoreIC_Setter_ForDeopt, STORE_IC, MONOMORPHIC, StoreIC::kStrictModeState) \
\
V(KeyedStoreIC_Initialize, KEYED_STORE_IC, UNINITIALIZED, kNoExtraICState) \
V(KeyedStoreIC_PreMonomorphic, KEYED_STORE_IC, PREMONOMORPHIC, \
kNoExtraICState) \
V(KeyedStoreIC_Megamorphic, KEYED_STORE_IC, MEGAMORPHIC, kNoExtraICState) \
V(KeyedStoreIC_Generic, KEYED_STORE_IC, GENERIC, kNoExtraICState) \
\
V(KeyedStoreIC_Initialize_Strict, KEYED_STORE_IC, UNINITIALIZED, \
StoreIC::kStrictModeState) \
V(KeyedStoreIC_PreMonomorphic_Strict, KEYED_STORE_IC, PREMONOMORPHIC, \
StoreIC::kStrictModeState) \
V(KeyedStoreIC_Megamorphic_Strict, KEYED_STORE_IC, MEGAMORPHIC, \
StoreIC::kStrictModeState) \
V(KeyedStoreIC_Generic_Strict, KEYED_STORE_IC, GENERIC, \
StoreIC::kStrictModeState) \
V(KeyedStoreIC_SloppyArguments, KEYED_STORE_IC, MONOMORPHIC, \
kNoExtraICState) \
\
/* Uses KeyedLoadIC_Initialize; must be after in list. */ \
V(FunctionCall, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(FunctionApply, BUILTIN, UNINITIALIZED, kNoExtraICState) \
\
V(InternalArrayCode, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(ArrayCode, BUILTIN, UNINITIALIZED, kNoExtraICState) \
\
V(StringConstructCode, BUILTIN, UNINITIALIZED, kNoExtraICState) \
\
V(OnStackReplacement, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(InterruptCheck, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(OsrAfterStackCheck, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(StackCheck, BUILTIN, UNINITIALIZED, kNoExtraICState) \
\
V(MarkCodeAsExecutedOnce, BUILTIN, UNINITIALIZED, kNoExtraICState) \
V(MarkCodeAsExecutedTwice, BUILTIN, UNINITIALIZED, kNoExtraICState) \
CODE_AGE_LIST_WITH_ARG(DECLARE_CODE_AGE_BUILTIN, V)
// Define list of builtin handlers implemented in assembly.
#define BUILTIN_LIST_H(V) \
V(LoadIC_Slow, LOAD_IC) \
V(KeyedLoadIC_Slow, KEYED_LOAD_IC) \
V(StoreIC_Slow, STORE_IC) \
V(KeyedStoreIC_Slow, KEYED_STORE_IC) \
V(LoadIC_Normal, LOAD_IC) \
V(StoreIC_Normal, STORE_IC)
// Define list of builtins used by the debugger implemented in assembly.
#define BUILTIN_LIST_DEBUG_A(V) \
V(Return_DebugBreak, BUILTIN, DEBUG_STUB, \
DEBUG_BREAK) \
V(CallFunctionStub_DebugBreak, BUILTIN, DEBUG_STUB, \
DEBUG_BREAK) \
V(CallConstructStub_DebugBreak, BUILTIN, DEBUG_STUB, \
DEBUG_BREAK) \
V(CallConstructStub_Recording_DebugBreak, BUILTIN, DEBUG_STUB, \
DEBUG_BREAK) \
V(CallICStub_DebugBreak, CALL_IC, DEBUG_STUB, \
DEBUG_BREAK) \
V(LoadIC_DebugBreak, LOAD_IC, DEBUG_STUB, \
DEBUG_BREAK) \
V(KeyedLoadIC_DebugBreak, KEYED_LOAD_IC, DEBUG_STUB, \
DEBUG_BREAK) \
V(StoreIC_DebugBreak, STORE_IC, DEBUG_STUB, \
DEBUG_BREAK) \
V(KeyedStoreIC_DebugBreak, KEYED_STORE_IC, DEBUG_STUB, \
DEBUG_BREAK) \
V(CompareNilIC_DebugBreak, COMPARE_NIL_IC, DEBUG_STUB, \
DEBUG_BREAK) \
V(Slot_DebugBreak, BUILTIN, DEBUG_STUB, \
DEBUG_BREAK) \
V(PlainReturn_LiveEdit, BUILTIN, DEBUG_STUB, \
DEBUG_BREAK) \
V(FrameDropper_LiveEdit, BUILTIN, DEBUG_STUB, \
DEBUG_BREAK)
// Define list of builtins implemented in JavaScript.
#define BUILTINS_LIST_JS(V) \
V(EQUALS, 1) \
V(STRICT_EQUALS, 1) \
V(COMPARE, 2) \
V(ADD, 1) \
V(SUB, 1) \
V(MUL, 1) \
V(DIV, 1) \
V(MOD, 1) \
V(BIT_OR, 1) \
V(BIT_AND, 1) \
V(BIT_XOR, 1) \
V(SHL, 1) \
V(SAR, 1) \
V(SHR, 1) \
V(DELETE, 2) \
V(IN, 1) \
V(INSTANCE_OF, 1) \
V(FILTER_KEY, 1) \
V(CALL_NON_FUNCTION, 0) \
V(CALL_NON_FUNCTION_AS_CONSTRUCTOR, 0) \
V(CALL_FUNCTION_PROXY, 1) \
V(CALL_FUNCTION_PROXY_AS_CONSTRUCTOR, 1) \
V(TO_OBJECT, 0) \
V(TO_NUMBER, 0) \
V(TO_STRING, 0) \
V(STRING_ADD_LEFT, 1) \
V(STRING_ADD_RIGHT, 1) \
V(APPLY_PREPARE, 1) \
V(STACK_OVERFLOW, 1)
class BuiltinFunctionTable;
class ObjectVisitor;
class Builtins {
public:
~Builtins();
// Generate all builtin code objects. Should be called once during
// isolate initialization.
void SetUp(Isolate* isolate, bool create_heap_objects);
void TearDown();
// Garbage collection support.
void IterateBuiltins(ObjectVisitor* v);
// Disassembler support.
const char* Lookup(byte* pc);
enum Name {
#define DEF_ENUM_C(name, ignore) k##name,
#define DEF_ENUM_A(name, kind, state, extra) k##name,
#define DEF_ENUM_H(name, kind) k##name,
BUILTIN_LIST_C(DEF_ENUM_C)
BUILTIN_LIST_A(DEF_ENUM_A)
BUILTIN_LIST_H(DEF_ENUM_H)
BUILTIN_LIST_DEBUG_A(DEF_ENUM_A)
#undef DEF_ENUM_C
#undef DEF_ENUM_A
builtin_count
};
enum CFunctionId {
#define DEF_ENUM_C(name, ignore) c_##name,
BUILTIN_LIST_C(DEF_ENUM_C)
#undef DEF_ENUM_C
cfunction_count
};
enum JavaScript {
#define DEF_ENUM(name, ignore) name,
BUILTINS_LIST_JS(DEF_ENUM)
#undef DEF_ENUM
id_count
};
#define DECLARE_BUILTIN_ACCESSOR_C(name, ignore) Handle<Code> name();
#define DECLARE_BUILTIN_ACCESSOR_A(name, kind, state, extra) \
Handle<Code> name();
#define DECLARE_BUILTIN_ACCESSOR_H(name, kind) Handle<Code> name();
BUILTIN_LIST_C(DECLARE_BUILTIN_ACCESSOR_C)
BUILTIN_LIST_A(DECLARE_BUILTIN_ACCESSOR_A)
BUILTIN_LIST_H(DECLARE_BUILTIN_ACCESSOR_H)
BUILTIN_LIST_DEBUG_A(DECLARE_BUILTIN_ACCESSOR_A)
#undef DECLARE_BUILTIN_ACCESSOR_C
#undef DECLARE_BUILTIN_ACCESSOR_A
Code* builtin(Name name) {
// Code::cast cannot be used here since we access builtins
// during the marking phase of mark sweep. See IC::Clear.
return reinterpret_cast<Code*>(builtins_[name]);
}
Address builtin_address(Name name) {
return reinterpret_cast<Address>(&builtins_[name]);
}
static Address c_function_address(CFunctionId id) {
return c_functions_[id];
}
static const char* GetName(JavaScript id) { return javascript_names_[id]; }
const char* name(int index) {
DCHECK(index >= 0);
DCHECK(index < builtin_count);
return names_[index];
}
static int GetArgumentsCount(JavaScript id) { return javascript_argc_[id]; }
Handle<Code> GetCode(JavaScript id, bool* resolved);
static int NumberOfJavaScriptBuiltins() { return id_count; }
bool is_initialized() const { return initialized_; }
private:
Builtins();
// The external C++ functions called from the code.
static Address const c_functions_[cfunction_count];
// Note: These are always Code objects, but to conform with
// IterateBuiltins() above which assumes Object**'s for the callback
// function f, we use an Object* array here.
Object* builtins_[builtin_count];
const char* names_[builtin_count];
static const char* const javascript_names_[id_count];
static int const javascript_argc_[id_count];
static void Generate_Adaptor(MacroAssembler* masm,
CFunctionId id,
BuiltinExtraArguments extra_args);
static void Generate_CompileLazy(MacroAssembler* masm);
static void Generate_InOptimizationQueue(MacroAssembler* masm);
static void Generate_CompileOptimized(MacroAssembler* masm);
static void Generate_CompileOptimizedConcurrent(MacroAssembler* masm);
static void Generate_JSConstructStubGeneric(MacroAssembler* masm);
static void Generate_JSConstructStubApi(MacroAssembler* masm);
static void Generate_JSEntryTrampoline(MacroAssembler* masm);
static void Generate_JSConstructEntryTrampoline(MacroAssembler* masm);
static void Generate_NotifyDeoptimized(MacroAssembler* masm);
static void Generate_NotifySoftDeoptimized(MacroAssembler* masm);
static void Generate_NotifyLazyDeoptimized(MacroAssembler* masm);
static void Generate_NotifyStubFailure(MacroAssembler* masm);
static void Generate_NotifyStubFailureSaveDoubles(MacroAssembler* masm);
static void Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm);
static void Generate_FunctionCall(MacroAssembler* masm);
static void Generate_FunctionApply(MacroAssembler* masm);
static void Generate_InternalArrayCode(MacroAssembler* masm);
static void Generate_ArrayCode(MacroAssembler* masm);
static void Generate_StringConstructCode(MacroAssembler* masm);
static void Generate_OnStackReplacement(MacroAssembler* masm);
static void Generate_OsrAfterStackCheck(MacroAssembler* masm);
static void Generate_InterruptCheck(MacroAssembler* masm);
static void Generate_StackCheck(MacroAssembler* masm);
#define DECLARE_CODE_AGE_BUILTIN_GENERATOR(C) \
static void Generate_Make##C##CodeYoungAgainEvenMarking( \
MacroAssembler* masm); \
static void Generate_Make##C##CodeYoungAgainOddMarking( \
MacroAssembler* masm);
CODE_AGE_LIST(DECLARE_CODE_AGE_BUILTIN_GENERATOR)
#undef DECLARE_CODE_AGE_BUILTIN_GENERATOR
static void Generate_MarkCodeAsExecutedOnce(MacroAssembler* masm);
static void Generate_MarkCodeAsExecutedTwice(MacroAssembler* masm);
static void InitBuiltinFunctionTable();
bool initialized_;
friend class BuiltinFunctionTable;
friend class Isolate;
DISALLOW_COPY_AND_ASSIGN(Builtins);
};
} } // namespace v8::internal
#endif // V8_BUILTINS_H_
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