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Handlify simple functions of [keyed] store stub compiler.

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Handlified functions: CompileStoreField, CompileStoreGlobal, CompileStoreElement, CompileStorePolymorphic.

Based on 8375053.

R=kmillikin@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8393003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9791 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
ulan@chromium.org 2011-10-26 10:45:24 +00:00
parent 5a33ffd7e8
commit beb0bbe3a9
7 changed files with 154 additions and 300 deletions
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97
src/arm/stub-cache-arm.cc
View File

@ -425,9 +425,9 @@ void StubCompiler::GenerateLoadFunctionPrototype(MacroAssembler* masm,
// may be clobbered. Upon branch to miss_label, the receiver and name
// registers have their original values.
void StubCompiler::GenerateStoreField(MacroAssembler* masm,
JSObject* object,
Handle<JSObject> object,
int index,
Map* transition,
Handle<Map> transition,
Register receiver_reg,
Register name_reg,
Register scratch,
@ -453,11 +453,11 @@ void StubCompiler::GenerateStoreField(MacroAssembler* masm,
ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded());
// Perform map transition for the receiver if necessary.
if ((transition != NULL) && (object->map()->unused_property_fields() == 0)) {
if (!transition.is_null() && (object->map()->unused_property_fields() == 0)) {
// The properties must be extended before we can store the value.
// We jump to a runtime call that extends the properties array.
__ push(receiver_reg);
__ mov(r2, Operand(Handle<Map>(transition)));
__ mov(r2, Operand(transition));
__ Push(r2, r0);
__ TailCallExternalReference(
ExternalReference(IC_Utility(IC::kSharedStoreIC_ExtendStorage),
@ -467,10 +467,10 @@ void StubCompiler::GenerateStoreField(MacroAssembler* masm,
return;
}
if (transition != NULL) {
if (!transition.is_null()) {
// Update the map of the object; no write barrier updating is
// needed because the map is never in new space.
__ mov(ip, Operand(Handle<Map>(transition)));
__ mov(ip, Operand(transition));
__ str(ip, FieldMemOperand(receiver_reg, HeapObject::kMapOffset));
}
@ -2821,10 +2821,10 @@ MaybeObject* CallStubCompiler::CompileCallGlobal(JSObject* object,
}
MaybeObject* StoreStubCompiler::CompileStoreField(JSObject* object,
Handle<Code> StoreStubCompiler::CompileStoreField(Handle<JSObject> object,
int index,
Map* transition,
String* name) {
Handle<Map> transition,
Handle<String> name) {
// ----------- S t a t e -------------
// -- r0 : value
// -- r1 : receiver
@ -2833,18 +2833,13 @@ MaybeObject* StoreStubCompiler::CompileStoreField(JSObject* object,
// -----------------------------------
Label miss;
GenerateStoreField(masm(),
object,
index,
transition,
r1, r2, r3,
&miss);
GenerateStoreField(masm(), object, index, transition, r1, r2, r3, &miss);
__ bind(&miss);
Handle<Code> ic = masm()->isolate()->builtins()->StoreIC_Miss();
__ Jump(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name);
return GetCode(transition.is_null() ? FIELD : MAP_TRANSITION, name);
}
@ -2892,7 +2887,7 @@ MaybeObject* StoreStubCompiler::CompileStoreCallback(JSObject* object,
__ Jump(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
return GetCode(CALLBACKS, name);
return TryGetCode(CALLBACKS, name);
}
@ -2940,13 +2935,14 @@ MaybeObject* StoreStubCompiler::CompileStoreInterceptor(JSObject* receiver,
__ Jump(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
return GetCode(INTERCEPTOR, name);
return TryGetCode(INTERCEPTOR, name);
}
MaybeObject* StoreStubCompiler::CompileStoreGlobal(GlobalObject* object,
JSGlobalPropertyCell* cell,
String* name) {
Handle<Code> StoreStubCompiler::CompileStoreGlobal(
Handle<GlobalObject> object,
Handle<JSGlobalPropertyCell> cell,
Handle<String> name) {
// ----------- S t a t e -------------
// -- r0 : value
// -- r1 : receiver
@ -2964,7 +2960,7 @@ MaybeObject* StoreStubCompiler::CompileStoreGlobal(GlobalObject* object,
// cell could have been deleted and reintroducing the global needs
// to update the property details in the property dictionary of the
// global object. We bail out to the runtime system to do that.
__ mov(r4, Operand(Handle<JSGlobalPropertyCell>(cell)));
__ mov(r4, Operand(cell));
__ LoadRoot(r5, Heap::kTheHoleValueRootIndex);
__ ldr(r6, FieldMemOperand(r4, JSGlobalPropertyCell::kValueOffset));
__ cmp(r5, r6);
@ -3407,10 +3403,10 @@ Handle<Code> KeyedLoadStubCompiler::CompileLoadPolymorphic(
}
MaybeObject* KeyedStoreStubCompiler::CompileStoreField(JSObject* object,
Handle<Code> KeyedStoreStubCompiler::CompileStoreField(Handle<JSObject> object,
int index,
Map* transition,
String* name) {
Handle<Map> transition,
Handle<String> name) {
// ----------- S t a t e -------------
// -- r0 : value
// -- r1 : name
@ -3423,17 +3419,12 @@ MaybeObject* KeyedStoreStubCompiler::CompileStoreField(JSObject* object,
__ IncrementCounter(counters->keyed_store_field(), 1, r3, r4);
// Check that the name has not changed.
__ cmp(r1, Operand(Handle<String>(name)));
__ cmp(r1, Operand(name));
__ b(ne, &miss);
// r3 is used as scratch register. r1 and r2 keep their values if a jump to
// the miss label is generated.
GenerateStoreField(masm(),
object,
index,
transition,
r2, r1, r3,
&miss);
GenerateStoreField(masm(), object, index, transition, r2, r1, r3, &miss);
__ bind(&miss);
__ DecrementCounter(counters->keyed_store_field(), 1, r3, r4);
@ -3441,11 +3432,12 @@ MaybeObject* KeyedStoreStubCompiler::CompileStoreField(JSObject* object,
__ Jump(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name);
return GetCode(transition.is_null() ? FIELD : MAP_TRANSITION, name);
}
MaybeObject* KeyedStoreStubCompiler::CompileStoreElement(Map* receiver_map) {
Handle<Code> KeyedStoreStubCompiler::CompileStoreElement(
Handle<Map> receiver_map) {
// ----------- S t a t e -------------
// -- r0 : value
// -- r1 : key
@ -3453,30 +3445,25 @@ MaybeObject* KeyedStoreStubCompiler::CompileStoreElement(Map* receiver_map) {
// -- lr : return address
// -- r3 : scratch
// -----------------------------------
Code* stub;
ElementsKind elements_kind = receiver_map->elements_kind();
bool is_js_array = receiver_map->instance_type() == JS_ARRAY_TYPE;
MaybeObject* maybe_stub =
KeyedStoreElementStub(is_js_array, elements_kind).TryGetCode();
if (!maybe_stub->To(&stub)) return maybe_stub;
__ DispatchMap(r2,
r3,
Handle<Map>(receiver_map),
Handle<Code>(stub),
DO_SMI_CHECK);
Handle<Code> stub =
KeyedStoreElementStub(is_js_array, elements_kind).GetCode();
__ DispatchMap(r2, r3, receiver_map, stub, DO_SMI_CHECK);
Handle<Code> ic = isolate()->builtins()->KeyedStoreIC_Miss();
__ Jump(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
return GetCode(NORMAL, NULL);
return GetCode(NORMAL, factory()->empty_string());
}
MaybeObject* KeyedStoreStubCompiler::CompileStorePolymorphic(
MapList* receiver_maps,
CodeList* handler_stubs,
MapList* transitioned_maps) {
Handle<Code> KeyedStoreStubCompiler::CompileStorePolymorphic(
MapHandleList* receiver_maps,
CodeHandleList* handler_stubs,
MapHandleList* transitioned_maps) {
// ----------- S t a t e -------------
// -- r0 : value
// -- r1 : key
@ -3490,17 +3477,15 @@ MaybeObject* KeyedStoreStubCompiler::CompileStorePolymorphic(
int receiver_count = receiver_maps->length();
__ ldr(r3, FieldMemOperand(r2, HeapObject::kMapOffset));
for (int i = 0; i < receiver_count; ++i) {
Handle<Map> map(receiver_maps->at(i));
Handle<Code> code(handler_stubs->at(i));
__ mov(ip, Operand(map));
__ mov(ip, Operand(receiver_maps->at(i)));
__ cmp(r3, ip);
if (transitioned_maps->at(i) == NULL) {
__ Jump(code, RelocInfo::CODE_TARGET, eq);
if (transitioned_maps->at(i).is_null()) {
__ Jump(handler_stubs->at(i), RelocInfo::CODE_TARGET, eq);
} else {
Label next_map;
__ b(ne, &next_map);
__ mov(r3, Operand(Handle<Map>(transitioned_maps->at(i))));
__ Jump(code, RelocInfo::CODE_TARGET, al);
__ mov(r3, Operand(transitioned_maps->at(i)));
__ Jump(handler_stubs->at(i), RelocInfo::CODE_TARGET, al);
__ bind(&next_map);
}
}
@ -3510,7 +3495,7 @@ MaybeObject* KeyedStoreStubCompiler::CompileStorePolymorphic(
__ Jump(miss_ic, RelocInfo::CODE_TARGET, al);
// Return the generated code.
return GetCode(NORMAL, NULL, MEGAMORPHIC);
return GetCode(NORMAL, factory()->empty_string(), MEGAMORPHIC);
}

97
src/ia32/stub-cache-ia32.cc
View File

@ -772,9 +772,9 @@ void StubCompiler::GenerateKeyedLoadMissForceGeneric(MacroAssembler* masm) {
// Both name_reg and receiver_reg are preserved on jumps to miss_label,
// but may be destroyed if store is successful.
void StubCompiler::GenerateStoreField(MacroAssembler* masm,
JSObject* object,
Handle<JSObject> object,
int index,
Map* transition,
Handle<Map> transition,
Register receiver_reg,
Register name_reg,
Register scratch,
@ -797,12 +797,12 @@ void StubCompiler::GenerateStoreField(MacroAssembler* masm,
ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded());
// Perform map transition for the receiver if necessary.
if ((transition != NULL) && (object->map()->unused_property_fields() == 0)) {
if (!transition.is_null() && (object->map()->unused_property_fields() == 0)) {
// The properties must be extended before we can store the value.
// We jump to a runtime call that extends the properties array.
__ pop(scratch); // Return address.
__ push(receiver_reg);
__ push(Immediate(Handle<Map>(transition)));
__ push(Immediate(transition));
__ push(eax);
__ push(scratch);
__ TailCallExternalReference(
@ -813,11 +813,11 @@ void StubCompiler::GenerateStoreField(MacroAssembler* masm,
return;
}
if (transition != NULL) {
if (!transition.is_null()) {
// Update the map of the object; no write barrier updating is
// needed because the map is never in new space.
__ mov(FieldOperand(receiver_reg, HeapObject::kMapOffset),
Immediate(Handle<Map>(transition)));
Immediate(transition));
}
// Adjust for the number of properties stored in the object. Even in the
@ -2699,10 +2699,10 @@ MaybeObject* CallStubCompiler::CompileCallGlobal(
}
MaybeObject* StoreStubCompiler::CompileStoreField(JSObject* object,
Handle<Code> StoreStubCompiler::CompileStoreField(Handle<JSObject> object,
int index,
Map* transition,
String* name) {
Handle<Map> transition,
Handle<String> name) {
// ----------- S t a t e -------------
// -- eax : value
// -- ecx : name
@ -2712,21 +2712,16 @@ MaybeObject* StoreStubCompiler::CompileStoreField(JSObject* object,
Label miss;
// Generate store field code. Trashes the name register.
GenerateStoreField(masm(),
object,
index,
transition,
edx, ecx, ebx,
&miss);
GenerateStoreField(masm(), object, index, transition, edx, ecx, ebx, &miss);
// Handle store cache miss.
__ bind(&miss);
__ mov(ecx, Immediate(Handle<String>(name))); // restore name
__ mov(ecx, Immediate(name)); // restore name
Handle<Code> ic = isolate()->builtins()->StoreIC_Miss();
__ jmp(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name);
return GetCode(transition.is_null() ? FIELD : MAP_TRANSITION, name);
}
@ -2776,7 +2771,7 @@ MaybeObject* StoreStubCompiler::CompileStoreCallback(JSObject* object,
__ jmp(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
return GetCode(CALLBACKS, name);
return TryGetCode(CALLBACKS, name);
}
@ -2825,13 +2820,14 @@ MaybeObject* StoreStubCompiler::CompileStoreInterceptor(JSObject* receiver,
__ jmp(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
return GetCode(INTERCEPTOR, name);
return TryGetCode(INTERCEPTOR, name);
}
MaybeObject* StoreStubCompiler::CompileStoreGlobal(GlobalObject* object,
JSGlobalPropertyCell* cell,
String* name) {
Handle<Code> StoreStubCompiler::CompileStoreGlobal(
Handle<GlobalObject> object,
Handle<JSGlobalPropertyCell> cell,
Handle<String> name) {
// ----------- S t a t e -------------
// -- eax : value
// -- ecx : name
@ -2846,7 +2842,7 @@ MaybeObject* StoreStubCompiler::CompileStoreGlobal(GlobalObject* object,
__ j(not_equal, &miss);
// Compute the cell operand to use.
__ mov(ebx, Immediate(Handle<JSGlobalPropertyCell>(cell)));
__ mov(ebx, Immediate(cell));
Operand cell_operand = FieldOperand(ebx, JSGlobalPropertyCell::kValueOffset);
// Check that the value in the cell is not the hole. If it is, this
@ -2890,10 +2886,10 @@ MaybeObject* StoreStubCompiler::CompileStoreGlobal(GlobalObject* object,
}
MaybeObject* KeyedStoreStubCompiler::CompileStoreField(JSObject* object,
Handle<Code> KeyedStoreStubCompiler::CompileStoreField(Handle<JSObject> object,
int index,
Map* transition,
String* name) {
Handle<Map> transition,
Handle<String> name) {
// ----------- S t a t e -------------
// -- eax : value
// -- ecx : key
@ -2906,16 +2902,11 @@ MaybeObject* KeyedStoreStubCompiler::CompileStoreField(JSObject* object,
__ IncrementCounter(counters->keyed_store_field(), 1);
// Check that the name has not changed.
__ cmp(ecx, Immediate(Handle<String>(name)));
__ cmp(ecx, Immediate(name));
__ j(not_equal, &miss);
// Generate store field code. Trashes the name register.
GenerateStoreField(masm(),
object,
index,
transition,
edx, ecx, ebx,
&miss);
GenerateStoreField(masm(), object, index, transition, edx, ecx, ebx, &miss);
// Handle store cache miss.
__ bind(&miss);
@ -2924,40 +2915,37 @@ MaybeObject* KeyedStoreStubCompiler::CompileStoreField(JSObject* object,
__ jmp(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name);
return GetCode(transition.is_null() ? FIELD : MAP_TRANSITION, name);
}
MaybeObject* KeyedStoreStubCompiler::CompileStoreElement(Map* receiver_map) {
Handle<Code> KeyedStoreStubCompiler::CompileStoreElement(
Handle<Map> receiver_map) {
// ----------- S t a t e -------------
// -- eax : value
// -- ecx : key
// -- edx : receiver
// -- esp[0] : return address
// -----------------------------------
Code* stub;
ElementsKind elements_kind = receiver_map->elements_kind();
bool is_jsarray = receiver_map->instance_type() == JS_ARRAY_TYPE;
MaybeObject* maybe_stub =
KeyedStoreElementStub(is_jsarray, elements_kind).TryGetCode();
if (!maybe_stub->To(&stub)) return maybe_stub;
__ DispatchMap(edx,
Handle<Map>(receiver_map),
Handle<Code>(stub),
DO_SMI_CHECK);
Handle<Code> stub =
KeyedStoreElementStub(is_jsarray, elements_kind).GetCode();
__ DispatchMap(edx, receiver_map, stub, DO_SMI_CHECK);
Handle<Code> ic = isolate()->builtins()->KeyedStoreIC_Miss();
__ jmp(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
return GetCode(NORMAL, NULL);
return GetCode(NORMAL, factory()->empty_string());
}
MaybeObject* KeyedStoreStubCompiler::CompileStorePolymorphic(
MapList* receiver_maps,
CodeList* handler_stubs,
MapList* transitioned_maps) {
Handle<Code> KeyedStoreStubCompiler::CompileStorePolymorphic(
MapHandleList* receiver_maps,
CodeHandleList* handler_stubs,
MapHandleList* transitioned_maps) {
// ----------- S t a t e -------------
// -- eax : value
// -- ecx : key
@ -2969,15 +2957,14 @@ MaybeObject* KeyedStoreStubCompiler::CompileStorePolymorphic(
__ mov(edi, FieldOperand(edx, HeapObject::kMapOffset));
// ebx: receiver->map().
for (int i = 0; i < receiver_maps->length(); ++i) {
Handle<Map> map(receiver_maps->at(i));
__ cmp(edi, map);
if (transitioned_maps->at(i) == NULL) {
__ j(equal, Handle<Code>(handler_stubs->at(i)));
__ cmp(edi, receiver_maps->at(i));
if (transitioned_maps->at(i).is_null()) {
__ j(equal, handler_stubs->at(i));
} else {
Label next_map;
__ j(not_equal, &next_map, Label::kNear);
__ mov(ebx, Immediate(Handle<Map>(transitioned_maps->at(i))));
__ jmp(Handle<Code>(handler_stubs->at(i)), RelocInfo::CODE_TARGET);
__ mov(ebx, Immediate(transitioned_maps->at(i)));
__ jmp(handler_stubs->at(i), RelocInfo::CODE_TARGET);
__ bind(&next_map);
}
}
@ -2986,7 +2973,7 @@ MaybeObject* KeyedStoreStubCompiler::CompileStorePolymorphic(
__ jmp(miss_ic, RelocInfo::CODE_TARGET);
// Return the generated code.
return GetCode(NORMAL, NULL, MEGAMORPHIC);
return GetCode(NORMAL, factory()->empty_string(), MEGAMORPHIC);
}

12
src/list-inl.h
View File

@ -237,18 +237,6 @@ int SortedListBSearch(const List<T>& list, T elem) {
}
template <class T>
List<T*>* UnwrapHandleList(List<T*>* destination, List<Handle<T> >* source) {
ASSERT(destination->is_empty());
int length = source->length();
for (int i = 0; i < length; ++i) {
Handle<T> handle = source->at(i);
destination->Add(handle.is_null() ? NULL : *handle);
}
return destination;
}
} } // namespace v8::internal
#endif // V8_LIST_INL_H_

8
src/list.h
View File

@ -179,14 +179,6 @@ int SortedListBSearch(
template <typename T>
int SortedListBSearch(const List<T>& list, T elem);
// Unwraps each handle in the source list to a pointer at
// the corresponding position in the destination list.
// Returns the destination list.
// Both list must have the same length.
template <class T>
List<T*>* UnwrapHandleList(List<T*>* destination, List<Handle<T> >* source);
} } // namespace v8::internal

103
src/stub-cache.cc
View File

@ -417,20 +417,6 @@ Handle<Code> StubCache::ComputeKeyedLoadFunctionPrototype(
}
Handle<Code> StoreStubCompiler::CompileStoreField(Handle<JSObject> object,
int index,
Handle<Map> transition,
Handle<String> name) {
CALL_HEAP_FUNCTION(
isolate(),
(set_failure(NULL),
CompileStoreField(*object, index,
transition.is_null() ? NULL : *transition,
*name)),
Code);
}
Handle<Code> StubCache::ComputeStoreField(Handle<String> name,
Handle<JSObject> receiver,
int field_index,
@ -452,14 +438,6 @@ Handle<Code> StubCache::ComputeStoreField(Handle<String> name,
}
Handle<Code> KeyedStoreStubCompiler::CompileStoreElement(Handle<Map> map) {
CALL_HEAP_FUNCTION(isolate(),
(set_failure(NULL),
CompileStoreElement(*map)),
Code);
}
Handle<Code> StubCache::ComputeKeyedLoadOrStoreElement(
Handle<JSObject> receiver,
KeyedIC::StubKind stub_kind,
@ -515,29 +493,6 @@ Handle<Code> StubCache::ComputeKeyedLoadOrStoreElement(
}
Handle<Code> KeyedStoreStubCompiler::CompileStorePolymorphic(
MapHandleList* receiver_maps,
CodeHandleList* handler_stubs,
MapHandleList* transitioned_maps) {
MapList raw_receiver_maps(receiver_maps->length());
CodeList raw_handler_stubs(handler_stubs->length());
MapList raw_transitioned_maps(transitioned_maps->length());
CALL_HEAP_FUNCTION(
isolate(),
(set_failure(NULL),
raw_receiver_maps.Clear(),
raw_handler_stubs.Clear(),
raw_transitioned_maps.Clear(),
CompileStorePolymorphic(UnwrapHandleList(&raw_receiver_maps,
receiver_maps),
UnwrapHandleList(&raw_handler_stubs,
handler_stubs),
UnwrapHandleList(&raw_transitioned_maps,
transitioned_maps))),
Code);
}
Handle<Code> StubCache::ComputeStoreNormal(StrictModeFlag strict_mode) {
return (strict_mode == kStrictMode)
? isolate_->builtins()->Builtins::StoreIC_Normal_Strict()
@ -545,17 +500,6 @@ Handle<Code> StubCache::ComputeStoreNormal(StrictModeFlag strict_mode) {
}
Handle<Code> StoreStubCompiler::CompileStoreGlobal(
Handle<GlobalObject> object,
Handle<JSGlobalPropertyCell> holder,
Handle<String> name) {
CALL_HEAP_FUNCTION(isolate(),
(set_failure(NULL),
CompileStoreGlobal(*object, *holder, *name)),
Code);
}
Handle<Code> StubCache::ComputeStoreGlobal(Handle<String> name,
Handle<GlobalObject> receiver,
Handle<JSGlobalPropertyCell> cell,
@ -629,19 +573,6 @@ Handle<Code> StubCache::ComputeStoreInterceptor(Handle<String> name,
return code;
}
Handle<Code> KeyedStoreStubCompiler::CompileStoreField(Handle<JSObject> object,
int index,
Handle<Map> transition,
Handle<String> name) {
CALL_HEAP_FUNCTION(
isolate(),
(set_failure(NULL),
CompileStoreField(*object, index,
transition.is_null() ? NULL : *transition,
*name)),
Code);
}
Handle<Code> StubCache::ComputeKeyedStoreField(Handle<String> name,
Handle<JSObject> receiver,
int field_index,
@ -1616,7 +1547,20 @@ MaybeObject* KeyedLoadStubCompiler::TryGetCode(PropertyType type,
}
MaybeObject* StoreStubCompiler::GetCode(PropertyType type, String* name) {
Handle<Code> StoreStubCompiler::GetCode(PropertyType type,
Handle<String> name) {
Code::Flags flags =
Code::ComputeMonomorphicFlags(Code::STORE_IC, type, strict_mode_);
Handle<Code> code = GetCodeWithFlags(flags, name);
PROFILE(isolate(), CodeCreateEvent(Logger::STORE_IC_TAG, *code, *name));
GDBJIT(AddCode(GDBJITInterface::STORE_IC, *name, *code));
return code;
}
// TODO(ulan): Eliminate this function when the stub cache is fully
// handlified.
MaybeObject* StoreStubCompiler::TryGetCode(PropertyType type, String* name) {
Code::Flags flags =
Code::ComputeMonomorphicFlags(Code::STORE_IC, type, strict_mode_);
MaybeObject* result = TryGetCodeWithFlags(flags, name);
@ -1633,22 +1577,15 @@ MaybeObject* StoreStubCompiler::GetCode(PropertyType type, String* name) {
}
MaybeObject* KeyedStoreStubCompiler::GetCode(PropertyType type,
String* name,
Handle<Code> KeyedStoreStubCompiler::GetCode(PropertyType type,
Handle<String> name,
InlineCacheState state) {
Code::Flags flags =
Code::ComputeFlags(Code::KEYED_STORE_IC, state, strict_mode_, type);
MaybeObject* result = TryGetCodeWithFlags(flags, name);
if (!result->IsFailure()) {
PROFILE(isolate(),
CodeCreateEvent(Logger::KEYED_STORE_IC_TAG,
Code::cast(result->ToObjectUnchecked()),
name));
GDBJIT(AddCode(GDBJITInterface::KEYED_STORE_IC,
name,
Code::cast(result->ToObjectUnchecked())));
}
return result;
Handle<Code> code = GetCodeWithFlags(flags, name);
PROFILE(isolate(), CodeCreateEvent(Logger::KEYED_STORE_IC_TAG, *code, *name));
GDBJIT(AddCode(GDBJITInterface::KEYED_STORE_IC, *name, *code));
return code;
}

34
src/stub-cache.h
View File

@ -440,9 +440,9 @@ class StubCompiler BASE_EMBEDDED {
Label* miss_label);
static void GenerateStoreField(MacroAssembler* masm,
JSObject* object,
Handle<JSObject> object,
int index,
Map* transition,
Handle<Map> transition,
Register receiver_reg,
Register name_reg,
Register scratch,
@ -708,11 +708,6 @@ class StoreStubCompiler: public StubCompiler {
Handle<Map> transition,
Handle<String> name);
MUST_USE_RESULT MaybeObject* CompileStoreField(JSObject* object,
int index,
Map* transition,
String* name);
Handle<Code> CompileStoreCallback(Handle<JSObject> object,
Handle<AccessorInfo> callback,
Handle<String> name);
@ -730,13 +725,10 @@ class StoreStubCompiler: public StubCompiler {
Handle<JSGlobalPropertyCell> holder,
Handle<String> name);
MUST_USE_RESULT MaybeObject* CompileStoreGlobal(GlobalObject* object,
JSGlobalPropertyCell* holder,
String* name);
private:
MaybeObject* GetCode(PropertyType type, String* name);
MaybeObject* TryGetCode(PropertyType type, String* name);
Handle<Code> GetCode(PropertyType type, Handle<String> name);
StrictModeFlag strict_mode_;
};
@ -752,24 +744,12 @@ class KeyedStoreStubCompiler: public StubCompiler {
Handle<Map> transition,
Handle<String> name);
MUST_USE_RESULT MaybeObject* CompileStoreField(JSObject* object,
int index,
Map* transition,
String* name);
Handle<Code> CompileStoreElement(Handle<Map> receiver_map);
MUST_USE_RESULT MaybeObject* CompileStoreElement(Map* receiver_map);
Handle<Code> CompileStorePolymorphic(MapHandleList* receiver_maps,
CodeHandleList* handler_stubs,
MapHandleList* transitioned_maps);
MUST_USE_RESULT MaybeObject* CompileStorePolymorphic(
MapList* receiver_maps,
CodeList* handler_stubs,
MapList* transitioned_maps);
static void GenerateStoreFastElement(MacroAssembler* masm,
bool is_js_array,
ElementsKind element_kind);
@ -783,8 +763,8 @@ class KeyedStoreStubCompiler: public StubCompiler {
static void GenerateStoreDictionaryElement(MacroAssembler* masm);
private:
MaybeObject* GetCode(PropertyType type,
String* name,
Handle<Code> GetCode(PropertyType type,
Handle<String> name,
InlineCacheState state = MONOMORPHIC);
StrictModeFlag strict_mode_;

99
src/x64/stub-cache-x64.cc
View File

@ -768,9 +768,9 @@ void StubCompiler::GenerateKeyedLoadMissForceGeneric(MacroAssembler* masm) {
// Both name_reg and receiver_reg are preserved on jumps to miss_label,
// but may be destroyed if store is successful.
void StubCompiler::GenerateStoreField(MacroAssembler* masm,
JSObject* object,
Handle<JSObject> object,
int index,
Map* transition,
Handle<Map> transition,
Register receiver_reg,
Register name_reg,
Register scratch,
@ -793,12 +793,12 @@ void StubCompiler::GenerateStoreField(MacroAssembler* masm,
ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded());
// Perform map transition for the receiver if necessary.
if ((transition != NULL) && (object->map()->unused_property_fields() == 0)) {
if (!transition.is_null() && (object->map()->unused_property_fields() == 0)) {
// The properties must be extended before we can store the value.
// We jump to a runtime call that extends the properties array.
__ pop(scratch); // Return address.
__ push(receiver_reg);
__ Push(Handle<Map>(transition));
__ Push(transition);
__ push(rax);
__ push(scratch);
__ TailCallExternalReference(
@ -809,11 +809,10 @@ void StubCompiler::GenerateStoreField(MacroAssembler* masm,
return;
}
if (transition != NULL) {
if (!transition.is_null()) {
// Update the map of the object; no write barrier updating is
// needed because the map is never in new space.
__ Move(FieldOperand(receiver_reg, HeapObject::kMapOffset),
Handle<Map>(transition));
__ Move(FieldOperand(receiver_reg, HeapObject::kMapOffset), transition);
}
// Adjust for the number of properties stored in the object. Even in the
@ -2569,10 +2568,10 @@ MaybeObject* CallStubCompiler::CompileCallGlobal(JSObject* object,
}
MaybeObject* StoreStubCompiler::CompileStoreField(JSObject* object,
Handle<Code> StoreStubCompiler::CompileStoreField(Handle<JSObject> object,
int index,
Map* transition,
String* name) {
Handle<Map> transition,
Handle<String> name) {
// ----------- S t a t e -------------
// -- rax : value
// -- rcx : name
@ -2582,12 +2581,7 @@ MaybeObject* StoreStubCompiler::CompileStoreField(JSObject* object,
Label miss;
// Generate store field code. Preserves receiver and name on jump to miss.
GenerateStoreField(masm(),
object,
index,
transition,
rdx, rcx, rbx,
&miss);
GenerateStoreField(masm(), object, index, transition, rdx, rcx, rbx, &miss);
// Handle store cache miss.
__ bind(&miss);
@ -2595,7 +2589,7 @@ MaybeObject* StoreStubCompiler::CompileStoreField(JSObject* object,
__ Jump(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name);
return GetCode(transition.is_null() ? FIELD : MAP_TRANSITION, name);
}
@ -2645,7 +2639,7 @@ MaybeObject* StoreStubCompiler::CompileStoreCallback(JSObject* object,
__ Jump(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
return GetCode(CALLBACKS, name);
return TryGetCode(CALLBACKS, name);
}
@ -2694,13 +2688,14 @@ MaybeObject* StoreStubCompiler::CompileStoreInterceptor(JSObject* receiver,
__ Jump(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
return GetCode(INTERCEPTOR, name);
return TryGetCode(INTERCEPTOR, name);
}
MaybeObject* StoreStubCompiler::CompileStoreGlobal(GlobalObject* object,
JSGlobalPropertyCell* cell,
String* name) {
Handle<Code> StoreStubCompiler::CompileStoreGlobal(
Handle<GlobalObject> object,
Handle<JSGlobalPropertyCell> cell,
Handle<String> name) {
// ----------- S t a t e -------------
// -- rax : value
// -- rcx : name
@ -2715,7 +2710,7 @@ MaybeObject* StoreStubCompiler::CompileStoreGlobal(GlobalObject* object,
__ j(not_equal, &miss);
// Compute the cell operand to use.
__ Move(rbx, Handle<JSGlobalPropertyCell>(cell));
__ Move(rbx, cell);
Operand cell_operand = FieldOperand(rbx, JSGlobalPropertyCell::kValueOffset);
// Check that the value in the cell is not the hole. If it is, this
@ -2759,10 +2754,10 @@ MaybeObject* StoreStubCompiler::CompileStoreGlobal(GlobalObject* object,
}
MaybeObject* KeyedStoreStubCompiler::CompileStoreField(JSObject* object,
Handle<Code> KeyedStoreStubCompiler::CompileStoreField(Handle<JSObject> object,
int index,
Map* transition,
String* name) {
Handle<Map> transition,
Handle<String> name) {
// ----------- S t a t e -------------
// -- rax : value
// -- rcx : key
@ -2775,16 +2770,11 @@ MaybeObject* KeyedStoreStubCompiler::CompileStoreField(JSObject* object,
__ IncrementCounter(counters->keyed_store_field(), 1);
// Check that the name has not changed.
__ Cmp(rcx, Handle<String>(name));
__ Cmp(rcx, name);
__ j(not_equal, &miss);
// Generate store field code. Preserves receiver and name on jump to miss.
GenerateStoreField(masm(),
object,
index,
transition,
rdx, rcx, rbx,
&miss);
GenerateStoreField(masm(), object, index, transition, rdx, rcx, rbx, &miss);
// Handle store cache miss.
__ bind(&miss);
@ -2793,40 +2783,38 @@ MaybeObject* KeyedStoreStubCompiler::CompileStoreField(JSObject* object,
__ Jump(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name);
return GetCode(transition.is_null() ? FIELD : MAP_TRANSITION, name);
}
MaybeObject* KeyedStoreStubCompiler::CompileStoreElement(Map* receiver_map) {
Handle<Code> KeyedStoreStubCompiler::CompileStoreElement(
Handle<Map> receiver_map) {
// ----------- S t a t e -------------
// -- rax : value
// -- rcx : key
// -- rdx : receiver
// -- rsp[0] : return address
// -----------------------------------
Code* stub;
ElementsKind elements_kind = receiver_map->elements_kind();
bool is_js_array = receiver_map->instance_type() == JS_ARRAY_TYPE;
MaybeObject* maybe_stub =
KeyedStoreElementStub(is_js_array, elements_kind).TryGetCode();
if (!maybe_stub->To(&stub)) return maybe_stub;
__ DispatchMap(rdx,
Handle<Map>(receiver_map),
Handle<Code>(stub),
DO_SMI_CHECK);
Handle<Code> stub =
KeyedStoreElementStub(is_js_array, elements_kind).GetCode();
__ DispatchMap(rdx, receiver_map, stub, DO_SMI_CHECK);
Handle<Code> ic = isolate()->builtins()->KeyedStoreIC_Miss();
__ jmp(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
return GetCode(NORMAL, NULL);
return GetCode(NORMAL, factory()->empty_string());
}
MaybeObject* KeyedStoreStubCompiler::CompileStorePolymorphic(
MapList* receiver_maps,
CodeList* handler_stubs,
MapList* transitioned_maps) {
Handle<Code> KeyedStoreStubCompiler::CompileStorePolymorphic(
MapHandleList* receiver_maps,
CodeHandleList* handler_stubs,
MapHandleList* transitioned_maps) {
// ----------- S t a t e -------------
// -- rax : value
// -- rcx : key
@ -2840,17 +2828,14 @@ MaybeObject* KeyedStoreStubCompiler::CompileStorePolymorphic(
int receiver_count = receiver_maps->length();
for (int i = 0; i < receiver_count; ++i) {
// Check map and tail call if there's a match
Handle<Map> map(receiver_maps->at(i));
__ Cmp(rdi, map);
if (transitioned_maps->at(i) == NULL) {
__ j(equal, Handle<Code>(handler_stubs->at(i)), RelocInfo::CODE_TARGET);
__ Cmp(rdi, receiver_maps->at(i));
if (transitioned_maps->at(i).is_null()) {
__ j(equal, handler_stubs->at(i), RelocInfo::CODE_TARGET);
} else {
Label next_map;
__ j(not_equal, &next_map, Label::kNear);
__ movq(rbx,
Handle<Map>(transitioned_maps->at(i)),
RelocInfo::EMBEDDED_OBJECT);
__ jmp(Handle<Code>(handler_stubs->at(i)), RelocInfo::CODE_TARGET);
__ movq(rbx, transitioned_maps->at(i), RelocInfo::EMBEDDED_OBJECT);
__ jmp(handler_stubs->at(i), RelocInfo::CODE_TARGET);
__ bind(&next_map);
}
}
@ -2860,7 +2845,7 @@ MaybeObject* KeyedStoreStubCompiler::CompileStorePolymorphic(
__ jmp(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
return GetCode(NORMAL, NULL, MEGAMORPHIC);
return GetCode(NORMAL, factory()->empty_string(), MEGAMORPHIC);
}