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MIPS: KeyedLoadIC should have same register spec as LoadIC.

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Port r22103 (2c36867)

Original commit message:
On arm, arm64 and x64 there is a different register specification between LoadIC and KeyedLoadIC.

It would be nicer if these are the same, allowing some key optimizations.

BUG=
R=palfia@homejinni.com

Review URL: https://codereview.chromium.org/367053002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22168 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
kilvadyb@homejinni.com 2014-07-02 15:09:14 +00:00
parent d8aefde617
commit 7a8a44aaf6
7 changed files with 131 additions and 181 deletions
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24
src/mips/code-stubs-mips.cc
View File

@ -1971,25 +1971,15 @@ void InstanceofStub::Generate(MacroAssembler* masm) {
void FunctionPrototypeStub::Generate(MacroAssembler* masm) {
Label miss;
Register receiver;
Register receiver = LoadIC::ReceiverRegister();
Register name = LoadIC::NameRegister();
ASSERT(kind() == Code::LOAD_IC ||
kind() == Code::KEYED_LOAD_IC);
if (kind() == Code::KEYED_LOAD_IC) {
// ----------- S t a t e -------------
// -- ra : return address
// -- a0 : key
// -- a1 : receiver
// -----------------------------------
__ Branch(&miss, ne, a0,
__ Branch(&miss, ne, name,
Operand(isolate()->factory()->prototype_string()));
receiver = a1;
} else {
ASSERT(kind() == Code::LOAD_IC);
// ----------- S t a t e -------------
// -- a2 : name
// -- ra : return address
// -- a0 : receiver
// -- sp[0] : receiver
// -----------------------------------
receiver = a0;
}
StubCompiler::GenerateLoadFunctionPrototype(masm, receiver, a3, t0, &miss);

4
src/mips/debug-mips.cc
View File

@ -207,9 +207,7 @@ void DebugCodegen::GenerateStoreICDebugBreak(MacroAssembler* masm) {
void DebugCodegen::GenerateKeyedLoadICDebugBreak(MacroAssembler* masm) {
// Calling convention for keyed IC load (from ic-arm.cc).
Register receiver = KeyedLoadIC::ReceiverRegister();
Register name = KeyedLoadIC::NameRegister();
Generate_DebugBreakCallHelper(masm, receiver.bit() | name.bit(), 0);
GenerateLoadICDebugBreak(masm);
}

81
src/mips/full-codegen-mips.cc
View File

@ -1871,9 +1871,9 @@ void FullCodeGenerator::VisitAssignment(Assignment* expr) {
break;
case NAMED_PROPERTY:
if (expr->is_compound()) {
// We need the receiver both on the stack and in the accumulator.
VisitForAccumulatorValue(property->obj());
__ push(result_register());
// We need the receiver both on the stack and in the register.
VisitForStackValue(property->obj());
__ lw(LoadIC::ReceiverRegister(), MemOperand(sp, 0));
} else {
VisitForStackValue(property->obj());
}
@ -1882,9 +1882,9 @@ void FullCodeGenerator::VisitAssignment(Assignment* expr) {
// We need the key and receiver on both the stack and in v0 and a1.
if (expr->is_compound()) {
VisitForStackValue(property->obj());
VisitForAccumulatorValue(property->key());
__ lw(a1, MemOperand(sp, 0));
__ push(v0);
VisitForStackValue(property->key());
__ lw(LoadIC::ReceiverRegister(), MemOperand(sp, 1 * kPointerSize));
__ lw(LoadIC::NameRegister(), MemOperand(sp, 0));
} else {
VisitForStackValue(property->obj());
VisitForStackValue(property->key());
@ -2022,6 +2022,9 @@ void FullCodeGenerator::VisitYield(Yield* expr) {
Label l_catch, l_try, l_suspend, l_continuation, l_resume;
Label l_next, l_call;
Register load_receiver = LoadIC::ReceiverRegister();
Register load_name = LoadIC::NameRegister();
// Initial send value is undefined.
__ LoadRoot(a0, Heap::kUndefinedValueRootIndex);
__ Branch(&l_next);
@ -2030,9 +2033,9 @@ void FullCodeGenerator::VisitYield(Yield* expr) {
__ bind(&l_catch);
__ mov(a0, v0);
handler_table()->set(expr->index(), Smi::FromInt(l_catch.pos()));
__ LoadRoot(a2, Heap::kthrow_stringRootIndex); // "throw"
__ lw(a3, MemOperand(sp, 1 * kPointerSize)); // iter
__ Push(a2, a3, a0); // "throw", iter, except
__ LoadRoot(load_name, Heap::kthrow_stringRootIndex); // "throw"
__ lw(a3, MemOperand(sp, 1 * kPointerSize)); // iter
__ Push(load_name, a3, a0); // "throw", iter, except
__ jmp(&l_call);
// try { received = %yield result }
@ -2068,19 +2071,15 @@ void FullCodeGenerator::VisitYield(Yield* expr) {
// receiver = iter; f = 'next'; arg = received;
__ bind(&l_next);
Register keyedload_receiver = KeyedLoadIC::ReceiverRegister();
Register keyedload_name = KeyedLoadIC::NameRegister();
ASSERT(keyedload_receiver.is(a1));
ASSERT(keyedload_name.is(a0));
__ LoadRoot(a2, Heap::knext_stringRootIndex); // "next"
__ lw(a3, MemOperand(sp, 1 * kPointerSize)); // iter
__ Push(a2, a3, a0); // "next", iter, received
__ LoadRoot(load_name, Heap::knext_stringRootIndex); // "next"
__ lw(a3, MemOperand(sp, 1 * kPointerSize)); // iter
__ Push(load_name, a3, a0); // "next", iter, received
// result = receiver[f](arg);
__ bind(&l_call);
__ lw(keyedload_receiver, MemOperand(sp, kPointerSize));
__ lw(keyedload_name, MemOperand(sp, 2 * kPointerSize));
__ lw(load_receiver, MemOperand(sp, kPointerSize));
__ lw(load_name, MemOperand(sp, 2 * kPointerSize));
Handle<Code> ic = isolate()->builtins()->KeyedLoadIC_Initialize();
CallIC(ic, TypeFeedbackId::None());
__ mov(a0, v0);
@ -2093,16 +2092,12 @@ void FullCodeGenerator::VisitYield(Yield* expr) {
__ Drop(1); // The function is still on the stack; drop it.
// if (!result.done) goto l_try;
Register load_receiver = LoadIC::ReceiverRegister();
Register load_name = LoadIC::NameRegister();
ASSERT(load_receiver.is(a0));
ASSERT(load_name.is(a2));
__ Move(load_receiver, v0);
__ mov(load_receiver, v0);
__ push(v0); // save result
__ push(load_receiver); // save result
__ LoadRoot(load_name, Heap::kdone_stringRootIndex); // "done"
CallLoadIC(NOT_CONTEXTUAL); // v0=result.done
__ mov(load_receiver, v0);
__ mov(a0, v0);
Handle<Code> bool_ic = ToBooleanStub::GetUninitialized(isolate());
CallIC(bool_ic);
__ Branch(&l_try, eq, v0, Operand(zero_reg));
@ -2272,7 +2267,6 @@ void FullCodeGenerator::EmitCreateIteratorResult(bool done) {
void FullCodeGenerator::EmitNamedPropertyLoad(Property* prop) {
SetSourcePosition(prop->position());
Literal* key = prop->key()->AsLiteral();
__ mov(LoadIC::ReceiverRegister(), result_register());
__ li(LoadIC::NameRegister(), Operand(key->value()));
// Call load IC. It has register arguments receiver and property.
CallLoadIC(NOT_CONTEXTUAL, prop->PropertyFeedbackId());
@ -2281,7 +2275,6 @@ void FullCodeGenerator::EmitNamedPropertyLoad(Property* prop) {
void FullCodeGenerator::EmitKeyedPropertyLoad(Property* prop) {
SetSourcePosition(prop->position());
__ mov(a0, result_register());
// Call keyed load IC. It has register arguments receiver and key.
Handle<Code> ic = isolate()->builtins()->KeyedLoadIC_Initialize();
CallIC(ic, prop->PropertyFeedbackId());
@ -2580,16 +2573,15 @@ void FullCodeGenerator::VisitProperty(Property* expr) {
if (key->IsPropertyName()) {
VisitForAccumulatorValue(expr->obj());
ASSERT(a0.is(LoadIC::ReceiverRegister()));
__ Move(LoadIC::ReceiverRegister(), v0);
EmitNamedPropertyLoad(expr);
PrepareForBailoutForId(expr->LoadId(), TOS_REG);
context()->Plug(v0);
} else {
VisitForStackValue(expr->obj());
VisitForAccumulatorValue(expr->key());
ASSERT(a0.is(KeyedLoadIC::NameRegister()));
ASSERT(a1.is(KeyedLoadIC::ReceiverRegister()));
__ pop(KeyedLoadIC::ReceiverRegister());
__ Move(LoadIC::NameRegister(), v0);
__ pop(LoadIC::ReceiverRegister());
EmitKeyedPropertyLoad(expr);
context()->Plug(v0);
}
@ -2623,7 +2615,7 @@ void FullCodeGenerator::EmitCallWithLoadIC(Call* expr) {
} else {
// Load the function from the receiver.
ASSERT(callee->IsProperty());
__ lw(v0, MemOperand(sp, 0));
__ lw(LoadIC::ReceiverRegister(), MemOperand(sp, 0));
EmitNamedPropertyLoad(callee->AsProperty());
PrepareForBailoutForId(callee->AsProperty()->LoadId(), TOS_REG);
// Push the target function under the receiver.
@ -2641,13 +2633,13 @@ void FullCodeGenerator::EmitKeyedCallWithLoadIC(Call* expr,
Expression* key) {
// Load the key.
VisitForAccumulatorValue(key);
ASSERT(a0.is(KeyedLoadIC::NameRegister()));
Expression* callee = expr->expression();
// Load the function from the receiver.
ASSERT(callee->IsProperty());
__ lw(KeyedLoadIC::ReceiverRegister(), MemOperand(sp, 0));
__ lw(LoadIC::ReceiverRegister(), MemOperand(sp, 0));
__ Move(LoadIC::NameRegister(), v0);
EmitKeyedPropertyLoad(callee->AsProperty());
PrepareForBailoutForId(callee->AsProperty()->LoadId(), TOS_REG);
@ -4093,12 +4085,12 @@ void FullCodeGenerator::VisitCallRuntime(CallRuntime* expr) {
if (expr->is_jsruntime()) {
// Push the builtins object as the receiver.
__ lw(a0, GlobalObjectOperand());
__ lw(a0, FieldMemOperand(a0, GlobalObject::kBuiltinsOffset));
__ push(a0);
Register receiver = LoadIC::ReceiverRegister();
__ lw(receiver, GlobalObjectOperand());
__ lw(receiver, FieldMemOperand(receiver, GlobalObject::kBuiltinsOffset));
__ push(receiver);
// Load the function from the receiver.
ASSERT(a0.is(LoadIC::ReceiverRegister()));
__ li(LoadIC::NameRegister(), Operand(expr->name()));
CallLoadIC(NOT_CONTEXTUAL, expr->CallRuntimeFeedbackId());
@ -4276,16 +4268,15 @@ void FullCodeGenerator::VisitCountOperation(CountOperation* expr) {
__ push(at);
}
if (assign_type == NAMED_PROPERTY) {
// Put the object both on the stack and in the accumulator.
VisitForAccumulatorValue(prop->obj());
__ push(v0);
// Put the object both on the stack and in the register.
VisitForStackValue(prop->obj());
__ lw(LoadIC::ReceiverRegister(), MemOperand(sp, 0));
EmitNamedPropertyLoad(prop);
} else {
VisitForStackValue(prop->obj());
VisitForAccumulatorValue(prop->key());
ASSERT(a1.is(KeyedLoadIC::ReceiverRegister()));
__ lw(KeyedLoadIC::ReceiverRegister(), MemOperand(sp, 0));
__ push(v0);
VisitForStackValue(prop->key());
__ lw(LoadIC::ReceiverRegister(), MemOperand(sp, 1 * kPointerSize));
__ lw(LoadIC::NameRegister(), MemOperand(sp, 0));
EmitKeyedPropertyLoad(prop);
}
}

154
src/mips/ic-mips.cc
View File

@ -317,18 +317,16 @@ static void GenerateKeyNameCheck(MacroAssembler* masm,
void LoadIC::GenerateMegamorphic(MacroAssembler* masm) {
// ----------- S t a t e -------------
// -- a2 : name
// -- ra : return address
// -- a0 : receiver
// -----------------------------------
ASSERT(a0.is(ReceiverRegister()));
ASSERT(a2.is(NameRegister()));
// The return address is in lr.
Register receiver = ReceiverRegister();
Register name = NameRegister();
ASSERT(receiver.is(a1));
ASSERT(name.is(a2));
// Probe the stub cache.
Code::Flags flags = Code::ComputeHandlerFlags(Code::LOAD_IC);
masm->isolate()->stub_cache()->GenerateProbe(
masm, flags, a0, a2, a3, t0, t1, t2);
masm, flags, receiver, name, a3, t0, t1, t2);
// Cache miss: Jump to runtime.
GenerateMiss(masm);
@ -339,17 +337,17 @@ void LoadIC::GenerateNormal(MacroAssembler* masm) {
// ----------- S t a t e -------------
// -- a2 : name
// -- lr : return address
// -- a0 : receiver
// -- a1 : receiver
// -----------------------------------
ASSERT(a0.is(ReceiverRegister()));
ASSERT(a1.is(ReceiverRegister()));
ASSERT(a2.is(NameRegister()));
Label miss, slow;
GenerateNameDictionaryReceiverCheck(masm, a0, a1, a3, t0, &miss);
GenerateNameDictionaryReceiverCheck(masm, a1, a0, a3, t0, &miss);
// a1: elements
GenerateDictionaryLoad(masm, &slow, a1, a2, v0, a3, t0);
// a0: elements
GenerateDictionaryLoad(masm, &slow, a0, a2, v0, a3, t0);
__ Ret();
// Dictionary load failed, go slow (but don't miss).
@ -367,7 +365,7 @@ static const Register LoadIC_TempRegister() { return a3; }
void LoadIC::GenerateMiss(MacroAssembler* masm) {
// The return address is on the stack.
// The return address is in ra.
Isolate* isolate = masm->isolate();
__ IncrementCounter(isolate->counters()->keyed_load_miss(), 1, a3, t0);
@ -382,7 +380,7 @@ void LoadIC::GenerateMiss(MacroAssembler* masm) {
void LoadIC::GenerateRuntimeGetProperty(MacroAssembler* masm) {
// The return address is on the stack.
// The return address is in ra.
__ mov(LoadIC_TempRegister(), ReceiverRegister());
__ Push(LoadIC_TempRegister(), NameRegister());
@ -482,27 +480,27 @@ static MemOperand GenerateUnmappedArgumentsLookup(MacroAssembler* masm,
void KeyedLoadIC::GenerateSloppyArguments(MacroAssembler* masm) {
// ---------- S t a t e --------------
// -- lr : return address
// -- a0 : key
// -- a1 : receiver
// -----------------------------------
ASSERT(a1.is(ReceiverRegister()));
ASSERT(a0.is(NameRegister()));
// The return address is in ra.
Register receiver = ReceiverRegister();
Register key = NameRegister();
ASSERT(receiver.is(a1));
ASSERT(key.is(a2));
Label slow, notin;
MemOperand mapped_location =
GenerateMappedArgumentsLookup(masm, a1, a0, a2, a3, t0, &notin, &slow);
GenerateMappedArgumentsLookup(
masm, receiver, key, a0, a3, t0, &notin, &slow);
__ Ret(USE_DELAY_SLOT);
__ lw(v0, mapped_location);
__ bind(&notin);
// The unmapped lookup expects that the parameter map is in a2.
// The unmapped lookup expects that the parameter map is in a0.
MemOperand unmapped_location =
GenerateUnmappedArgumentsLookup(masm, a0, a2, a3, &slow);
__ lw(a2, unmapped_location);
GenerateUnmappedArgumentsLookup(masm, key, a0, a3, &slow);
__ lw(a0, unmapped_location);
__ LoadRoot(a3, Heap::kTheHoleValueRootIndex);
__ Branch(&slow, eq, a2, Operand(a3));
__ Branch(&slow, eq, a0, Operand(a3));
__ Ret(USE_DELAY_SLOT);
__ mov(v0, a2);
__ mov(v0, a0);
__ bind(&slow);
GenerateMiss(masm);
}
@ -544,7 +542,7 @@ void KeyedStoreIC::GenerateSloppyArguments(MacroAssembler* masm) {
void KeyedLoadIC::GenerateMiss(MacroAssembler* masm) {
// The return address is on the stack.
// The return address is in ra.
Isolate* isolate = masm->isolate();
__ IncrementCounter(isolate->counters()->keyed_load_miss(), 1, a3, t0);
@ -560,14 +558,12 @@ void KeyedLoadIC::GenerateMiss(MacroAssembler* masm) {
// IC register specifications
const Register LoadIC::ReceiverRegister() { return a0; }
const Register LoadIC::ReceiverRegister() { return a1; }
const Register LoadIC::NameRegister() { return a2; }
const Register KeyedLoadIC::ReceiverRegister() { return a1; }
const Register KeyedLoadIC::NameRegister() { return a0; }
void KeyedLoadIC::GenerateRuntimeGetProperty(MacroAssembler* masm) {
// The return address is on the stack.
// The return address is in ra.
__ Push(ReceiverRegister(), NameRegister());
@ -576,17 +572,13 @@ void KeyedLoadIC::GenerateRuntimeGetProperty(MacroAssembler* masm) {
void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) {
// ---------- S t a t e --------------
// -- ra : return address
// -- a0 : key
// -- a1 : receiver
// -----------------------------------
// The return address is in ra.
Label slow, check_name, index_smi, index_name, property_array_property;
Label probe_dictionary, check_number_dictionary;
Register key = NameRegister();
Register receiver = ReceiverRegister();
ASSERT(key.is(a0));
ASSERT(key.is(a2));
ASSERT(receiver.is(a1));
Isolate* isolate = masm->isolate();
@ -598,15 +590,14 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) {
// where a numeric string is converted to a smi.
GenerateKeyedLoadReceiverCheck(
masm, receiver, a2, a3, Map::kHasIndexedInterceptor, &slow);
masm, receiver, a0, a3, Map::kHasIndexedInterceptor, &slow);
// Check the receiver's map to see if it has fast elements.
__ CheckFastElements(a2, a3, &check_number_dictionary);
__ CheckFastElements(a0, a3, &check_number_dictionary);
GenerateFastArrayLoad(
masm, receiver, key, t0, a3, a2, v0, NULL, &slow);
__ IncrementCounter(isolate->counters()->keyed_load_generic_smi(), 1, a2, a3);
masm, receiver, key, a0, a3, t0, v0, NULL, &slow);
__ IncrementCounter(isolate->counters()->keyed_load_generic_smi(), 1, t0, a3);
__ Ret();
__ bind(&check_number_dictionary);
@ -614,42 +605,41 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) {
__ lw(a3, FieldMemOperand(t0, JSObject::kMapOffset));
// Check whether the elements is a number dictionary.
// a0: key
// a3: elements map
// t0: elements
__ LoadRoot(at, Heap::kHashTableMapRootIndex);
__ Branch(&slow, ne, a3, Operand(at));
__ sra(a2, a0, kSmiTagSize);
__ LoadFromNumberDictionary(&slow, t0, a0, v0, a2, a3, t1);
__ sra(a0, key, kSmiTagSize);
__ LoadFromNumberDictionary(&slow, t0, key, v0, a0, a3, t1);
__ Ret();
// Slow case, key and receiver still in a0 and a1.
// Slow case, key and receiver still in a2 and a1.
__ bind(&slow);
__ IncrementCounter(isolate->counters()->keyed_load_generic_slow(),
1,
a2,
t0,
a3);
GenerateRuntimeGetProperty(masm);
__ bind(&check_name);
GenerateKeyNameCheck(masm, key, a2, a3, &index_name, &slow);
GenerateKeyNameCheck(masm, key, a0, a3, &index_name, &slow);
GenerateKeyedLoadReceiverCheck(
masm, receiver, a2, a3, Map::kHasNamedInterceptor, &slow);
masm, receiver, a0, a3, Map::kHasNamedInterceptor, &slow);
// If the receiver is a fast-case object, check the keyed lookup
// cache. Otherwise probe the dictionary.
__ lw(a3, FieldMemOperand(a1, JSObject::kPropertiesOffset));
__ lw(a3, FieldMemOperand(receiver, JSObject::kPropertiesOffset));
__ lw(t0, FieldMemOperand(a3, HeapObject::kMapOffset));
__ LoadRoot(at, Heap::kHashTableMapRootIndex);
__ Branch(&probe_dictionary, eq, t0, Operand(at));
// Load the map of the receiver, compute the keyed lookup cache hash
// based on 32 bits of the map pointer and the name hash.
__ lw(a2, FieldMemOperand(a1, HeapObject::kMapOffset));
__ sra(a3, a2, KeyedLookupCache::kMapHashShift);
__ lw(t0, FieldMemOperand(a0, Name::kHashFieldOffset));
__ lw(a0, FieldMemOperand(receiver, HeapObject::kMapOffset));
__ sra(a3, a0, KeyedLookupCache::kMapHashShift);
__ lw(t0, FieldMemOperand(key, Name::kHashFieldOffset));
__ sra(at, t0, Name::kHashShift);
__ xor_(a3, a3, at);
int mask = KeyedLookupCache::kCapacityMask & KeyedLookupCache::kHashMask;
@ -669,21 +659,19 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) {
for (int i = 0; i < kEntriesPerBucket - 1; i++) {
Label try_next_entry;
__ lw(t1, MemOperand(t0, kPointerSize * i * 2));
__ Branch(&try_next_entry, ne, a2, Operand(t1));
__ Branch(&try_next_entry, ne, a0, Operand(t1));
__ lw(t1, MemOperand(t0, kPointerSize * (i * 2 + 1)));
__ Branch(&hit_on_nth_entry[i], eq, a0, Operand(t1));
__ Branch(&hit_on_nth_entry[i], eq, key, Operand(t1));
__ bind(&try_next_entry);
}
__ lw(t1, MemOperand(t0, kPointerSize * (kEntriesPerBucket - 1) * 2));
__ Branch(&slow, ne, a2, Operand(t1));
__ lw(t1, MemOperand(t0, kPointerSize * ((kEntriesPerBucket - 1) * 2 + 1)));
__ Branch(&slow, ne, a0, Operand(t1));
__ lw(t1, MemOperand(t0, kPointerSize * ((kEntriesPerBucket - 1) * 2 + 1)));
__ Branch(&slow, ne, key, Operand(t1));
// Get field offset.
// a0 : key
// a1 : receiver
// a2 : receiver's map
// a0 : receiver's map
// a3 : lookup cache index
ExternalReference cache_field_offsets =
ExternalReference::keyed_lookup_cache_field_offsets(isolate);
@ -695,7 +683,7 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) {
__ sll(at, a3, kPointerSizeLog2);
__ addu(at, t0, at);
__ lw(t1, MemOperand(at, kPointerSize * i));
__ lbu(t2, FieldMemOperand(a2, Map::kInObjectPropertiesOffset));
__ lbu(t2, FieldMemOperand(a0, Map::kInObjectPropertiesOffset));
__ Subu(t1, t1, t2);
__ Branch(&property_array_property, ge, t1, Operand(zero_reg));
if (i != 0) {
@ -705,28 +693,28 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) {
// Load in-object property.
__ bind(&load_in_object_property);
__ lbu(t2, FieldMemOperand(a2, Map::kInstanceSizeOffset));
__ lbu(t2, FieldMemOperand(a0, Map::kInstanceSizeOffset));
__ addu(t2, t2, t1); // Index from start of object.
__ Subu(a1, a1, Operand(kHeapObjectTag)); // Remove the heap tag.
__ Subu(receiver, receiver, Operand(kHeapObjectTag)); // Remove the heap tag.
__ sll(at, t2, kPointerSizeLog2);
__ addu(at, a1, at);
__ addu(at, receiver, at);
__ lw(v0, MemOperand(at));
__ IncrementCounter(isolate->counters()->keyed_load_generic_lookup_cache(),
1,
a2,
t0,
a3);
__ Ret();
// Load property array property.
__ bind(&property_array_property);
__ lw(a1, FieldMemOperand(a1, JSObject::kPropertiesOffset));
__ Addu(a1, a1, FixedArray::kHeaderSize - kHeapObjectTag);
__ sll(t0, t1, kPointerSizeLog2);
__ Addu(t0, t0, a1);
__ lw(v0, MemOperand(t0));
__ lw(receiver, FieldMemOperand(receiver, JSObject::kPropertiesOffset));
__ Addu(receiver, receiver, FixedArray::kHeaderSize - kHeapObjectTag);
__ sll(v0, t1, kPointerSizeLog2);
__ Addu(v0, v0, receiver);
__ lw(v0, MemOperand(v0));
__ IncrementCounter(isolate->counters()->keyed_load_generic_lookup_cache(),
1,
a2,
t0,
a3);
__ Ret();
@ -734,17 +722,15 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) {
// Do a quick inline probe of the receiver's dictionary, if it
// exists.
__ bind(&probe_dictionary);
// a1: receiver
// a0: key
// a3: elements
__ lw(a2, FieldMemOperand(a1, HeapObject::kMapOffset));
__ lbu(a2, FieldMemOperand(a2, Map::kInstanceTypeOffset));
GenerateGlobalInstanceTypeCheck(masm, a2, &slow);
__ lw(a0, FieldMemOperand(receiver, HeapObject::kMapOffset));
__ lbu(a0, FieldMemOperand(a0, Map::kInstanceTypeOffset));
GenerateGlobalInstanceTypeCheck(masm, a0, &slow);
// Load the property to v0.
GenerateDictionaryLoad(masm, &slow, a3, a0, v0, a2, t0);
GenerateDictionaryLoad(masm, &slow, a3, key, v0, t1, t0);
__ IncrementCounter(isolate->counters()->keyed_load_generic_symbol(),
1,
a2,
t0,
a3);
__ Ret();
@ -756,7 +742,7 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) {
void KeyedLoadIC::GenerateString(MacroAssembler* masm) {
// Return address is on the stack.
// Return address is in ra.
Label miss;
Register receiver = ReceiverRegister();
@ -1071,13 +1057,13 @@ void KeyedStoreIC::GenerateGeneric(MacroAssembler* masm,
void KeyedLoadIC::GenerateIndexedInterceptor(MacroAssembler* masm) {
// Return address is on the stack.
// Return address is in ra.
Label slow;
Register receiver = ReceiverRegister();
Register key = NameRegister();
Register scratch1 = a2;
Register scratch2 = a3;
Register scratch1 = a3;
Register scratch2 = t0;
ASSERT(!scratch1.is(receiver) && !scratch1.is(key));
ASSERT(!scratch2.is(receiver) && !scratch2.is(key));

4
src/mips/lithium-codegen-mips.cc
View File

@ -3327,8 +3327,8 @@ MemOperand LCodeGen::PrepareKeyedOperand(Register key,
void LCodeGen::DoLoadKeyedGeneric(LLoadKeyedGeneric* instr) {
ASSERT(ToRegister(instr->context()).is(cp));
ASSERT(ToRegister(instr->object()).is(KeyedLoadIC::ReceiverRegister()));
ASSERT(ToRegister(instr->key()).is(KeyedLoadIC::NameRegister()));
ASSERT(ToRegister(instr->object()).is(LoadIC::ReceiverRegister()));
ASSERT(ToRegister(instr->key()).is(LoadIC::NameRegister()));
Handle<Code> ic = isolate()->builtins()->KeyedLoadIC_Initialize();
CallCode(ic, RelocInfo::CODE_TARGET, instr);

4
src/mips/lithium-mips.cc
View File

@ -2145,8 +2145,8 @@ LInstruction* LChunkBuilder::DoLoadKeyed(HLoadKeyed* instr) {
LInstruction* LChunkBuilder::DoLoadKeyedGeneric(HLoadKeyedGeneric* instr) {
LOperand* context = UseFixed(instr->context(), cp);
LOperand* object = UseFixed(instr->object(), KeyedLoadIC::ReceiverRegister());
LOperand* key = UseFixed(instr->key(), KeyedLoadIC::NameRegister());
LOperand* object = UseFixed(instr->object(), LoadIC::ReceiverRegister());
LOperand* key = UseFixed(instr->key(), LoadIC::NameRegister());
LInstruction* result =
DefineFixed(new(zone()) LLoadKeyedGeneric(context, object, key), v0);

41
src/mips/stub-cache-mips.cc
View File

@ -1256,16 +1256,16 @@ Register* LoadStubCompiler::registers() {
// receiver, name, scratch1, scratch2, scratch3, scratch4.
Register receiver = LoadIC::ReceiverRegister();
Register name = LoadIC::NameRegister();
static Register registers[] = { receiver, name, a3, a1, t0, t1 };
static Register registers[] = { receiver, name, a3, a0, t0, t1 };
return registers;
}
Register* KeyedLoadStubCompiler::registers() {
// receiver, name, scratch1, scratch2, scratch3, scratch4.
Register receiver = KeyedLoadIC::ReceiverRegister();
Register name = KeyedLoadIC::NameRegister();
static Register registers[] = { receiver, name, a2, a3, t0, t1 };
Register receiver = LoadIC::ReceiverRegister();
Register name = LoadIC::NameRegister();
static Register registers[] = { receiver, name, a3, a0, t0, t1 };
return registers;
}
@ -1466,45 +1466,30 @@ Handle<Code> KeyedStoreStubCompiler::CompileStorePolymorphic(
void KeyedLoadStubCompiler::GenerateLoadDictionaryElement(
MacroAssembler* masm) {
// ---------- S t a t e --------------
// -- ra : return address
// -- a0 : key
// -- a1 : receiver
// -----------------------------------
ASSERT(a1.is(KeyedLoadIC::ReceiverRegister()));
ASSERT(a0.is(KeyedLoadIC::NameRegister()));
// The return address is in ra.
Label slow, miss;
Register key = a0;
Register receiver = a1;
Register key = LoadIC::NameRegister();
Register receiver = LoadIC::ReceiverRegister();
ASSERT(receiver.is(a1));
ASSERT(key.is(a2));
__ JumpIfNotSmi(key, &miss);
__ UntagAndJumpIfNotSmi(t2, key, &miss);
__ lw(t0, FieldMemOperand(receiver, JSObject::kElementsOffset));
__ sra(a2, a0, kSmiTagSize);
__ LoadFromNumberDictionary(&slow, t0, a0, v0, a2, a3, t1);
__ LoadFromNumberDictionary(&slow, t0, key, v0, t2, a3, t1);
__ Ret();
// Slow case, key and receiver still in a0 and a1.
// Slow case, key and receiver still unmodified.
__ bind(&slow);
__ IncrementCounter(
masm->isolate()->counters()->keyed_load_external_array_slow(),
1, a2, a3);
// Entry registers are intact.
// ---------- S t a t e --------------
// -- ra : return address
// -- a0 : key
// -- a1 : receiver
// -----------------------------------
TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Slow);
// Miss case, call the runtime.
__ bind(&miss);
// ---------- S t a t e --------------
// -- ra : return address
// -- a0 : key
// -- a1 : receiver
// -----------------------------------
TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss);
}