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node/deps/v8/src/ia32/stub-cache-ia32.cc

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Upgrade to v8 1.2.7
16 years ago
// Copyright 2006-2009 the V8 project authors. All rights reserved.
import full versions of dependency libraries!
16 years ago
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "v8.h"
#include "ic-inl.h"
#include "codegen-inl.h"
#include "stub-cache.h"
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namespace v8 {
namespace internal {
import full versions of dependency libraries!
16 years ago
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#define __ ACCESS_MASM(masm)
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static void ProbeTable(MacroAssembler* masm,
Code::Flags flags,
StubCache::Table table,
Register name,
Register offset) {
ExternalReference key_offset(SCTableReference::keyReference(table));
ExternalReference value_offset(SCTableReference::valueReference(table));
Label miss;
// Save the offset on the stack.
__ push(offset);
// Check that the key in the entry matches the name.
__ cmp(name, Operand::StaticArray(offset, times_2, key_offset));
__ j(not_equal, &miss, not_taken);
// Get the code entry from the cache.
__ mov(offset, Operand::StaticArray(offset, times_2, value_offset));
// Check that the flags match what we're looking for.
__ mov(offset, FieldOperand(offset, Code::kFlagsOffset));
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__ and_(offset, ~Code::kFlagsNotUsedInLookup);
import full versions of dependency libraries!
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__ cmp(offset, flags);
__ j(not_equal, &miss);
// Restore offset and re-load code entry from cache.
__ pop(offset);
__ mov(offset, Operand::StaticArray(offset, times_2, value_offset));
// Jump to the first instruction in the code stub.
__ add(Operand(offset), Immediate(Code::kHeaderSize - kHeapObjectTag));
__ jmp(Operand(offset));
// Miss: Restore offset and fall through.
__ bind(&miss);
__ pop(offset);
}
void StubCache::GenerateProbe(MacroAssembler* masm,
Code::Flags flags,
Register receiver,
Register name,
Register scratch) {
Label miss;
// Make sure that code is valid. The shifting code relies on the
// entry size being 8.
ASSERT(sizeof(Entry) == 8);
// Make sure the flags does not name a specific type.
ASSERT(Code::ExtractTypeFromFlags(flags) == 0);
// Make sure that there are no register conflicts.
ASSERT(!scratch.is(receiver));
ASSERT(!scratch.is(name));
// Check that the receiver isn't a smi.
__ test(receiver, Immediate(kSmiTagMask));
__ j(zero, &miss, not_taken);
// Get the map of the receiver and compute the hash.
__ mov(scratch, FieldOperand(name, String::kLengthOffset));
__ add(scratch, FieldOperand(receiver, HeapObject::kMapOffset));
__ xor_(scratch, flags);
__ and_(scratch, (kPrimaryTableSize - 1) << kHeapObjectTagSize);
// Probe the primary table.
ProbeTable(masm, flags, kPrimary, name, scratch);
// Primary miss: Compute hash for secondary probe.
__ sub(scratch, Operand(name));
__ add(Operand(scratch), Immediate(flags));
__ and_(scratch, (kSecondaryTableSize - 1) << kHeapObjectTagSize);
// Probe the secondary table.
ProbeTable(masm, flags, kSecondary, name, scratch);
// Cache miss: Fall-through and let caller handle the miss by
// entering the runtime system.
__ bind(&miss);
}
void StubCompiler::GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm,
int index,
Register prototype) {
// Load the global or builtins object from the current context.
__ mov(prototype, Operand(esi, Context::SlotOffset(Context::GLOBAL_INDEX)));
// Load the global context from the global or builtins object.
__ mov(prototype,
FieldOperand(prototype, GlobalObject::kGlobalContextOffset));
// Load the function from the global context.
__ mov(prototype, Operand(prototype, Context::SlotOffset(index)));
// Load the initial map. The global functions all have initial maps.
__ mov(prototype,
FieldOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset));
// Load the prototype from the initial map.
__ mov(prototype, FieldOperand(prototype, Map::kPrototypeOffset));
}
void StubCompiler::GenerateLoadArrayLength(MacroAssembler* masm,
Register receiver,
Register scratch,
Label* miss_label) {
// Check that the receiver isn't a smi.
__ test(receiver, Immediate(kSmiTagMask));
__ j(zero, miss_label, not_taken);
// Check that the object is a JS array.
__ CmpObjectType(receiver, JS_ARRAY_TYPE, scratch);
__ j(not_equal, miss_label, not_taken);
// Load length directly from the JS array.
__ mov(eax, FieldOperand(receiver, JSArray::kLengthOffset));
__ ret(0);
}
// Generate code to check if an object is a string. If the object is
// a string, the map's instance type is left in the scratch register.
static void GenerateStringCheck(MacroAssembler* masm,
Register receiver,
Register scratch,
Label* smi,
Label* non_string_object) {
// Check that the object isn't a smi.
__ test(receiver, Immediate(kSmiTagMask));
__ j(zero, smi, not_taken);
// Check that the object is a string.
__ mov(scratch, FieldOperand(receiver, HeapObject::kMapOffset));
__ movzx_b(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset));
ASSERT(kNotStringTag != 0);
__ test(scratch, Immediate(kNotStringTag));
__ j(not_zero, non_string_object, not_taken);
}
void StubCompiler::GenerateLoadStringLength(MacroAssembler* masm,
Register receiver,
Register scratch,
Label* miss) {
Label load_length, check_wrapper;
// Check if the object is a string leaving the instance type in the
// scratch register.
GenerateStringCheck(masm, receiver, scratch, miss, &check_wrapper);
// Load length directly from the string.
__ bind(&load_length);
__ and_(scratch, kStringSizeMask);
__ mov(eax, FieldOperand(receiver, String::kLengthOffset));
// ecx is also the receiver.
__ lea(ecx, Operand(scratch, String::kLongLengthShift));
__ shr(eax); // ecx is implicit shift register.
__ shl(eax, kSmiTagSize);
__ ret(0);
// Check if the object is a JSValue wrapper.
__ bind(&check_wrapper);
__ cmp(scratch, JS_VALUE_TYPE);
__ j(not_equal, miss, not_taken);
// Check if the wrapped value is a string and load the length
// directly if it is.
__ mov(receiver, FieldOperand(receiver, JSValue::kValueOffset));
GenerateStringCheck(masm, receiver, scratch, miss, miss);
__ jmp(&load_length);
}
void StubCompiler::GenerateLoadFunctionPrototype(MacroAssembler* masm,
Register receiver,
Register scratch1,
Register scratch2,
Label* miss_label) {
__ TryGetFunctionPrototype(receiver, scratch1, scratch2, miss_label);
__ mov(eax, Operand(scratch1));
__ ret(0);
}
// Load a fast property out of a holder object (src). In-object properties
// are loaded directly otherwise the property is loaded from the properties
// fixed array.
void StubCompiler::GenerateFastPropertyLoad(MacroAssembler* masm,
Register dst, Register src,
JSObject* holder, int index) {
// Adjust for the number of properties stored in the holder.
index -= holder->map()->inobject_properties();
if (index < 0) {
// Get the property straight out of the holder.
int offset = holder->map()->instance_size() + (index * kPointerSize);
__ mov(dst, FieldOperand(src, offset));
} else {
// Calculate the offset into the properties array.
int offset = index * kPointerSize + Array::kHeaderSize;
__ mov(dst, FieldOperand(src, JSObject::kPropertiesOffset));
__ mov(dst, FieldOperand(dst, offset));
}
}
void StubCompiler::GenerateLoadField(MacroAssembler* masm,
JSObject* object,
JSObject* holder,
Register receiver,
Register scratch1,
Register scratch2,
int index,
Label* miss_label) {
// Check that the receiver isn't a smi.
__ test(receiver, Immediate(kSmiTagMask));
__ j(zero, miss_label, not_taken);
// Check that the maps haven't changed.
Register reg =
Upgrade v8 to version 1.2.3.
16 years ago
masm->CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label);
import full versions of dependency libraries!
16 years ago
// Get the value from the properties.
GenerateFastPropertyLoad(masm, eax, reg, holder, index);
__ ret(0);
}
void StubCompiler::GenerateLoadCallback(MacroAssembler* masm,
JSObject* object,
JSObject* holder,
Register receiver,
Register name,
Register scratch1,
Register scratch2,
AccessorInfo* callback,
Label* miss_label) {
// Check that the receiver isn't a smi.
__ test(receiver, Immediate(kSmiTagMask));
__ j(zero, miss_label, not_taken);
// Check that the maps haven't changed.
Register reg =
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masm->CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label);
import full versions of dependency libraries!
16 years ago
// Push the arguments on the JS stack of the caller.
__ pop(scratch2); // remove return address
__ push(receiver); // receiver
__ push(Immediate(Handle<AccessorInfo>(callback))); // callback data
__ push(name); // name
__ push(reg); // holder
__ push(scratch2); // restore return address
// Do tail-call to the runtime system.
ExternalReference load_callback_property =
ExternalReference(IC_Utility(IC::kLoadCallbackProperty));
__ TailCallRuntime(load_callback_property, 4);
}
void StubCompiler::GenerateLoadConstant(MacroAssembler* masm,
JSObject* object,
JSObject* holder,
Register receiver,
Register scratch1,
Register scratch2,
Object* value,
Label* miss_label) {
// Check that the receiver isn't a smi.
__ test(receiver, Immediate(kSmiTagMask));
__ j(zero, miss_label, not_taken);
// Check that the maps haven't changed.
Register reg =
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masm->CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label);
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// Return the constant value.
__ mov(eax, Handle<Object>(value));
__ ret(0);
}
void StubCompiler::GenerateLoadInterceptor(MacroAssembler* masm,
JSObject* object,
JSObject* holder,
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Smi* lookup_hint,
import full versions of dependency libraries!
16 years ago
Register receiver,
Register name,
Register scratch1,
Register scratch2,
Label* miss_label) {
// Check that the receiver isn't a smi.
__ test(receiver, Immediate(kSmiTagMask));
__ j(zero, miss_label, not_taken);
// Check that the maps haven't changed.
Register reg =
Upgrade v8 to version 1.2.3.
16 years ago
masm->CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label);
import full versions of dependency libraries!
16 years ago
// Push the arguments on the JS stack of the caller.
__ pop(scratch2); // remove return address
__ push(receiver); // receiver
__ push(reg); // holder
__ push(name); // name
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16 years ago
// TODO(367): Maybe don't push lookup_hint for LOOKUP_IN_HOLDER and/or
// LOOKUP_IN_PROTOTYPE, but use a special version of lookup method?
__ push(Immediate(lookup_hint));
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__ push(scratch2); // restore return address
// Do tail-call to the runtime system.
ExternalReference load_ic_property =
ExternalReference(IC_Utility(IC::kLoadInterceptorProperty));
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16 years ago
__ TailCallRuntime(load_ic_property, 4);
import full versions of dependency libraries!
16 years ago
}
void StubCompiler::GenerateLoadMiss(MacroAssembler* masm, Code::Kind kind) {
ASSERT(kind == Code::LOAD_IC || kind == Code::KEYED_LOAD_IC);
Code* code = NULL;
if (kind == Code::LOAD_IC) {
code = Builtins::builtin(Builtins::LoadIC_Miss);
} else {
code = Builtins::builtin(Builtins::KeyedLoadIC_Miss);
}
Handle<Code> ic(code);
__ jmp(ic, RelocInfo::CODE_TARGET);
}
void StubCompiler::GenerateStoreField(MacroAssembler* masm,
Builtins::Name storage_extend,
JSObject* object,
int index,
Map* transition,
Register receiver_reg,
Register name_reg,
Register scratch,
Label* miss_label) {
// Check that the object isn't a smi.
__ test(receiver_reg, Immediate(kSmiTagMask));
__ j(zero, miss_label, not_taken);
// Check that the map of the object hasn't changed.
__ cmp(FieldOperand(receiver_reg, HeapObject::kMapOffset),
Immediate(Handle<Map>(object->map())));
__ j(not_equal, miss_label, not_taken);
// Perform global security token check if needed.
if (object->IsJSGlobalProxy()) {
__ CheckAccessGlobalProxy(receiver_reg, scratch, miss_label);
}
// Stub never generated for non-global objects that require access
// checks.
ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded());
// Perform map transition for the receiver if necessary.
if ((transition != 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.
__ mov(ecx, Immediate(Handle<Map>(transition)));
Handle<Code> ic(Builtins::builtin(storage_extend));
__ jmp(ic, RelocInfo::CODE_TARGET);
return;
}
if (transition != 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)));
}
// Adjust for the number of properties stored in the object. Even in the
// face of a transition we can use the old map here because the size of the
// object and the number of in-object properties is not going to change.
index -= object->map()->inobject_properties();
if (index < 0) {
// Set the property straight into the object.
int offset = object->map()->instance_size() + (index * kPointerSize);
__ mov(FieldOperand(receiver_reg, offset), eax);
// Update the write barrier for the array address.
// Pass the value being stored in the now unused name_reg.
__ mov(name_reg, Operand(eax));
__ RecordWrite(receiver_reg, offset, name_reg, scratch);
} else {
// Write to the properties array.
int offset = index * kPointerSize + Array::kHeaderSize;
// Get the properties array (optimistically).
__ mov(scratch, FieldOperand(receiver_reg, JSObject::kPropertiesOffset));
__ mov(FieldOperand(scratch, offset), eax);
// Update the write barrier for the array address.
// Pass the value being stored in the now unused name_reg.
__ mov(name_reg, Operand(eax));
__ RecordWrite(scratch, offset, name_reg, receiver_reg);
}
// Return the value (register eax).
__ ret(0);
}
#undef __
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#define __ ACCESS_MASM(masm())
import full versions of dependency libraries!
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// TODO(1241006): Avoid having lazy compile stubs specialized by the
// number of arguments. It is not needed anymore.
Object* StubCompiler::CompileLazyCompile(Code::Flags flags) {
// Enter an internal frame.
__ EnterInternalFrame();
// Push a copy of the function onto the stack.
__ push(edi);
__ push(edi); // function is also the parameter to the runtime call
__ CallRuntime(Runtime::kLazyCompile, 1);
__ pop(edi);
// Tear down temporary frame.
__ LeaveInternalFrame();
// Do a tail-call of the compiled function.
__ lea(ecx, FieldOperand(eax, Code::kHeaderSize));
__ jmp(Operand(ecx));
return GetCodeWithFlags(flags, "LazyCompileStub");
}
Object* CallStubCompiler::CompileCallField(Object* object,
JSObject* holder,
int index,
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String* name,
Code::Flags flags) {
ASSERT_EQ(FIELD, Code::ExtractTypeFromFlags(flags));
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// ----------- S t a t e -------------
// -----------------------------------
Label miss;
// Get the receiver from the stack.
const int argc = arguments().immediate();
__ mov(edx, Operand(esp, (argc + 1) * kPointerSize));
// Check that the receiver isn't a smi.
__ test(edx, Immediate(kSmiTagMask));
__ j(zero, &miss, not_taken);
// Do the right check and compute the holder register.
Register reg =
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16 years ago
masm()->CheckMaps(JSObject::cast(object), edx, holder, ebx, ecx, &miss);
import full versions of dependency libraries!
16 years ago
GenerateFastPropertyLoad(masm(), edi, reg, holder, index);
// Check that the function really is a function.
__ test(edi, Immediate(kSmiTagMask));
__ j(zero, &miss, not_taken);
__ CmpObjectType(edi, JS_FUNCTION_TYPE, ebx);
__ j(not_equal, &miss, not_taken);
// Patch the receiver on the stack with the global proxy if
// necessary.
if (object->IsGlobalObject()) {
__ mov(edx, FieldOperand(edx, GlobalObject::kGlobalReceiverOffset));
__ mov(Operand(esp, (argc + 1) * kPointerSize), edx);
}
// Invoke the function.
__ InvokeFunction(edi, arguments(), JUMP_FUNCTION);
// Handle call cache miss.
__ bind(&miss);
Handle<Code> ic = ComputeCallMiss(arguments().immediate());
__ jmp(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
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return GetCodeWithFlags(flags, name);
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}
Object* CallStubCompiler::CompileCallConstant(Object* object,
JSObject* holder,
JSFunction* function,
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CheckType check,
Code::Flags flags) {
ASSERT_EQ(CONSTANT_FUNCTION, Code::ExtractTypeFromFlags(flags));
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// ----------- S t a t e -------------
// -----------------------------------
Label miss;
// Get the receiver from the stack.
const int argc = arguments().immediate();
__ mov(edx, Operand(esp, (argc + 1) * kPointerSize));
// Check that the receiver isn't a smi.
if (check != NUMBER_CHECK) {
__ test(edx, Immediate(kSmiTagMask));
__ j(zero, &miss, not_taken);
}
// Make sure that it's okay not to patch the on stack receiver
// unless we're doing a receiver map check.
ASSERT(!object->IsGlobalObject() || check == RECEIVER_MAP_CHECK);
switch (check) {
case RECEIVER_MAP_CHECK:
// Check that the maps haven't changed.
__ CheckMaps(JSObject::cast(object), edx, holder, ebx, ecx, &miss);
// Patch the receiver on the stack with the global proxy if
// necessary.
if (object->IsGlobalObject()) {
__ mov(edx, FieldOperand(edx, GlobalObject::kGlobalReceiverOffset));
__ mov(Operand(esp, (argc + 1) * kPointerSize), edx);
}
break;
case STRING_CHECK:
// Check that the object is a two-byte string or a symbol.
__ mov(ecx, FieldOperand(edx, HeapObject::kMapOffset));
__ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset));
__ cmp(ecx, FIRST_NONSTRING_TYPE);
__ j(above_equal, &miss, not_taken);
// Check that the maps starting from the prototype haven't changed.
GenerateLoadGlobalFunctionPrototype(masm(),
Context::STRING_FUNCTION_INDEX,
ecx);
__ CheckMaps(JSObject::cast(object->GetPrototype()),
ecx, holder, ebx, edx, &miss);
break;
case NUMBER_CHECK: {
Label fast;
// Check that the object is a smi or a heap number.
__ test(edx, Immediate(kSmiTagMask));
__ j(zero, &fast, taken);
__ CmpObjectType(edx, HEAP_NUMBER_TYPE, ecx);
__ j(not_equal, &miss, not_taken);
__ bind(&fast);
// Check that the maps starting from the prototype haven't changed.
GenerateLoadGlobalFunctionPrototype(masm(),
Context::NUMBER_FUNCTION_INDEX,
ecx);
__ CheckMaps(JSObject::cast(object->GetPrototype()),
ecx, holder, ebx, edx, &miss);
break;
}
case BOOLEAN_CHECK: {
Label fast;
// Check that the object is a boolean.
__ cmp(edx, Factory::true_value());
__ j(equal, &fast, taken);
__ cmp(edx, Factory::false_value());
__ j(not_equal, &miss, not_taken);
__ bind(&fast);
// Check that the maps starting from the prototype haven't changed.
GenerateLoadGlobalFunctionPrototype(masm(),
Context::BOOLEAN_FUNCTION_INDEX,
ecx);
__ CheckMaps(JSObject::cast(object->GetPrototype()),
ecx, holder, ebx, edx, &miss);
break;
}
case JSARRAY_HAS_FAST_ELEMENTS_CHECK:
__ CheckMaps(JSObject::cast(object), edx, holder, ebx, ecx, &miss);
// Make sure object->elements()->map() != Heap::dictionary_array_map()
// Get the elements array of the object.
__ mov(ebx, FieldOperand(edx, JSObject::kElementsOffset));
// Check that the object is in fast mode (not dictionary).
__ cmp(FieldOperand(ebx, HeapObject::kMapOffset),
Immediate(Factory::hash_table_map()));
__ j(equal, &miss, not_taken);
break;
default:
UNREACHABLE();
}
// Get the function and setup the context.
__ mov(edi, Immediate(Handle<JSFunction>(function)));
__ mov(esi, FieldOperand(edi, JSFunction::kContextOffset));
// Jump to the cached code (tail call).
Handle<Code> code(function->code());
ParameterCount expected(function->shared()->formal_parameter_count());
__ InvokeCode(code, expected, arguments(),
RelocInfo::CODE_TARGET, JUMP_FUNCTION);
// Handle call cache miss.
__ bind(&miss);
Handle<Code> ic = ComputeCallMiss(arguments().immediate());
__ jmp(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
String* function_name = NULL;
if (function->shared()->name()->IsString()) {
function_name = String::cast(function->shared()->name());
}
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return GetCodeWithFlags(flags, function_name);
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}
Object* CallStubCompiler::CompileCallInterceptor(Object* object,
JSObject* holder,
String* name) {
// ----------- S t a t e -------------
// -----------------------------------
Label miss;
// Get the number of arguments.
const int argc = arguments().immediate();
// Get the receiver from the stack.
__ mov(edx, Operand(esp, (argc + 1) * kPointerSize));
// Check that the receiver isn't a smi.
__ test(edx, Immediate(kSmiTagMask));
__ j(zero, &miss, not_taken);
// Check that maps have not changed and compute the holder register.
Register reg =
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16 years ago
masm()->CheckMaps(JSObject::cast(object), edx, holder, ebx, ecx, &miss);
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16 years ago
// Enter an internal frame.
__ EnterInternalFrame();
// Push arguments on the expression stack.
__ push(edx); // receiver
__ push(reg); // holder
__ push(Operand(ebp, (argc + 3) * kPointerSize)); // name
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__ push(Immediate(holder->InterceptorPropertyLookupHint(name)));
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// Perform call.
ExternalReference load_interceptor =
ExternalReference(IC_Utility(IC::kLoadInterceptorProperty));
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__ mov(eax, Immediate(4));
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__ mov(ebx, Immediate(load_interceptor));
CEntryStub stub;
__ CallStub(&stub);
// Move result to edi and restore receiver.
__ mov(edi, eax);
__ mov(edx, Operand(ebp, (argc + 2) * kPointerSize)); // receiver
// Exit frame.
__ LeaveInternalFrame();
// Check that the function really is a function.
__ test(edi, Immediate(kSmiTagMask));
__ j(zero, &miss, not_taken);
__ CmpObjectType(edi, JS_FUNCTION_TYPE, ebx);
__ j(not_equal, &miss, not_taken);
// Patch the receiver on the stack with the global proxy if
// necessary.
if (object->IsGlobalObject()) {
__ mov(edx, FieldOperand(edx, GlobalObject::kGlobalReceiverOffset));
__ mov(Operand(esp, (argc + 1) * kPointerSize), edx);
}
// Invoke the function.
__ InvokeFunction(edi, arguments(), JUMP_FUNCTION);
// Handle load cache miss.
__ bind(&miss);
Handle<Code> ic = ComputeCallMiss(argc);
__ jmp(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
return GetCode(INTERCEPTOR, name);
}
Object* StoreStubCompiler::CompileStoreField(JSObject* object,
int index,
Map* transition,
String* name) {
// ----------- S t a t e -------------
// -- eax : value
// -- ecx : name
// -- esp[0] : return address
// -- esp[4] : receiver
// -----------------------------------
Label miss;
// Get the object from the stack.
__ mov(ebx, Operand(esp, 1 * kPointerSize));
// Generate store field code. Trashes the name register.
GenerateStoreField(masm(),
Builtins::StoreIC_ExtendStorage,
object,
index,
transition,
ebx, ecx, edx,
&miss);
// Handle store cache miss.
__ bind(&miss);
__ mov(ecx, Immediate(Handle<String>(name))); // restore name
Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss));
__ jmp(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name);
}
Object* StoreStubCompiler::CompileStoreCallback(JSObject* object,
AccessorInfo* callback,
String* name) {
// ----------- S t a t e -------------
// -- eax : value
// -- ecx : name
// -- esp[0] : return address
// -- esp[4] : receiver
// -----------------------------------
Label miss;
// Get the object from the stack.
__ mov(ebx, Operand(esp, 1 * kPointerSize));
// Check that the object isn't a smi.
__ test(ebx, Immediate(kSmiTagMask));
__ j(zero, &miss, not_taken);
// Check that the map of the object hasn't changed.
__ cmp(FieldOperand(ebx, HeapObject::kMapOffset),
Immediate(Handle<Map>(object->map())));
__ j(not_equal, &miss, not_taken);
// Perform global security token check if needed.
if (object->IsJSGlobalProxy()) {
__ CheckAccessGlobalProxy(ebx, edx, &miss);
}
// Stub never generated for non-global objects that require access
// checks.
ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded());
__ pop(ebx); // remove the return address
__ push(Operand(esp, 0)); // receiver
__ push(Immediate(Handle<AccessorInfo>(callback))); // callback info
__ push(ecx); // name
__ push(eax); // value
__ push(ebx); // restore return address
// Do tail-call to the runtime system.
ExternalReference store_callback_property =
ExternalReference(IC_Utility(IC::kStoreCallbackProperty));
__ TailCallRuntime(store_callback_property, 4);
// Handle store cache miss.
__ bind(&miss);
__ mov(ecx, Immediate(Handle<String>(name))); // restore name
Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss));
__ jmp(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
return GetCode(CALLBACKS, name);
}
Object* StoreStubCompiler::CompileStoreInterceptor(JSObject* receiver,
String* name) {
// ----------- S t a t e -------------
// -- eax : value
// -- ecx : name
// -- esp[0] : return address
// -- esp[4] : receiver
// -----------------------------------
Label miss;
// Get the object from the stack.
__ mov(ebx, Operand(esp, 1 * kPointerSize));
// Check that the object isn't a smi.
__ test(ebx, Immediate(kSmiTagMask));
__ j(zero, &miss, not_taken);
// Check that the map of the object hasn't changed.
__ cmp(FieldOperand(ebx, HeapObject::kMapOffset),
Immediate(Handle<Map>(receiver->map())));
__ j(not_equal, &miss, not_taken);
// Perform global security token check if needed.
if (receiver->IsJSGlobalProxy()) {
__ CheckAccessGlobalProxy(ebx, edx, &miss);
}
// Stub never generated for non-global objects that require access
// checks.
ASSERT(receiver->IsJSGlobalProxy() || !receiver->IsAccessCheckNeeded());
__ pop(ebx); // remove the return address
__ push(Operand(esp, 0)); // receiver
__ push(ecx); // name
__ push(eax); // value
__ push(ebx); // restore return address
// Do tail-call to the runtime system.
ExternalReference store_ic_property =
ExternalReference(IC_Utility(IC::kStoreInterceptorProperty));
__ TailCallRuntime(store_ic_property, 3);
// Handle store cache miss.
__ bind(&miss);
__ mov(ecx, Immediate(Handle<String>(name))); // restore name
Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss));
__ jmp(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
return GetCode(INTERCEPTOR, name);
}
Object* KeyedStoreStubCompiler::CompileStoreField(JSObject* object,
int index,
Map* transition,
String* name) {
// ----------- S t a t e -------------
// -- eax : value
// -- esp[0] : return address
// -- esp[4] : key
// -- esp[8] : receiver
// -----------------------------------
Label miss;
__ IncrementCounter(&Counters::keyed_store_field, 1);
// Get the name from the stack.
__ mov(ecx, Operand(esp, 1 * kPointerSize));
// Check that the name has not changed.
__ cmp(Operand(ecx), Immediate(Handle<String>(name)));
__ j(not_equal, &miss, not_taken);
// Get the object from the stack.
__ mov(ebx, Operand(esp, 2 * kPointerSize));
// Generate store field code. Trashes the name register.
GenerateStoreField(masm(),
Builtins::KeyedStoreIC_ExtendStorage,
object,
index,
transition,
ebx, ecx, edx,
&miss);
// Handle store cache miss.
__ bind(&miss);
__ DecrementCounter(&Counters::keyed_store_field, 1);
Handle<Code> ic(Builtins::builtin(Builtins::KeyedStoreIC_Miss));
__ jmp(ic, RelocInfo::CODE_TARGET);
// Return the generated code.
return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name);
}
Object* LoadStubCompiler::CompileLoadField(JSObject* object,
JSObject* holder,
int index,
String* name) {
// ----------- S t a t e -------------
// -- ecx : name
// -- esp[0] : return address
// -- esp[4] : receiver
// -----------------------------------
Label miss;
__ mov(eax, (Operand(esp, kPointerSize)));
GenerateLoadField(masm(), object, holder, eax, ebx, edx, index, &miss);
__ bind(&miss);
GenerateLoadMiss(masm(), Code::LOAD_IC);
// Return the generated code.
return GetCode(FIELD, name);
}
Object* LoadStubCompiler::CompileLoadCallback(JSObject* object,
JSObject* holder,
AccessorInfo* callback,
String* name) {
// ----------- S t a t e -------------
// -- ecx : name
// -- esp[0] : return address
// -- esp[4] : receiver
// -----------------------------------
Label miss;
__ mov(eax, (Operand(esp, kPointerSize)));
GenerateLoadCallback(masm(), object, holder, eax, ecx, ebx,
edx, callback, &miss);
__ bind(&miss);
GenerateLoadMiss(masm(), Code::LOAD_IC);
// Return the generated code.
return GetCode(CALLBACKS, name);
}
Object* LoadStubCompiler::CompileLoadConstant(JSObject* object,
JSObject* holder,
Object* value,
String* name) {
// ----------- S t a t e -------------
// -- ecx : name
// -- esp[0] : return address
// -- esp[4] : receiver
// -----------------------------------
Label miss;
__ mov(eax, (Operand(esp, kPointerSize)));
GenerateLoadConstant(masm(), object, holder, eax, ebx, edx, value, &miss);
__ bind(&miss);
GenerateLoadMiss(masm(), Code::LOAD_IC);
// Return the generated code.
return GetCode(CONSTANT_FUNCTION, name);
}
Object* LoadStubCompiler::CompileLoadInterceptor(JSObject* receiver,
JSObject* holder,
String* name) {
// ----------- S t a t e -------------
// -- ecx : name
// -- esp[0] : return address
// -- esp[4] : receiver
// -----------------------------------
Label miss;
__ mov(eax, (Operand(esp, kPointerSize)));
Upgrade to v8 1.2.7
16 years ago
// TODO(368): Compile in the whole chain: all the interceptors in
// prototypes and ultimate answer.
GenerateLoadInterceptor(masm(),
receiver,
holder,
holder->InterceptorPropertyLookupHint(name),
eax,
ecx,
edx,
ebx,
&miss);
import full versions of dependency libraries!
16 years ago
__ bind(&miss);
GenerateLoadMiss(masm(), Code::LOAD_IC);
// Return the generated code.
return GetCode(INTERCEPTOR, name);
}
Object* KeyedLoadStubCompiler::CompileLoadField(String* name,
JSObject* receiver,
JSObject* holder,
int index) {
// ----------- S t a t e -------------
// -- esp[0] : return address
// -- esp[4] : name
// -- esp[8] : receiver
// -----------------------------------
Label miss;
__ mov(eax, (Operand(esp, kPointerSize)));
__ mov(ecx, (Operand(esp, 2 * kPointerSize)));
__ IncrementCounter(&Counters::keyed_load_field, 1);
// Check that the name has not changed.
__ cmp(Operand(eax), Immediate(Handle<String>(name)));
__ j(not_equal, &miss, not_taken);
GenerateLoadField(masm(), receiver, holder, ecx, ebx, edx, index, &miss);
__ bind(&miss);
__ DecrementCounter(&Counters::keyed_load_field, 1);
GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
// Return the generated code.
return GetCode(FIELD, name);
}
Object* KeyedLoadStubCompiler::CompileLoadCallback(String* name,
JSObject* receiver,
JSObject* holder,
AccessorInfo* callback) {
// ----------- S t a t e -------------
// -- esp[0] : return address
// -- esp[4] : name
// -- esp[8] : receiver
// -----------------------------------
Label miss;
__ mov(eax, (Operand(esp, kPointerSize)));
__ mov(ecx, (Operand(esp, 2 * kPointerSize)));
__ IncrementCounter(&Counters::keyed_load_callback, 1);
// Check that the name has not changed.
__ cmp(Operand(eax), Immediate(Handle<String>(name)));
__ j(not_equal, &miss, not_taken);
GenerateLoadCallback(masm(), receiver, holder, ecx, eax, ebx, edx,
callback, &miss);
__ bind(&miss);
__ DecrementCounter(&Counters::keyed_load_callback, 1);
GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
// Return the generated code.
return GetCode(CALLBACKS, name);
}
Object* KeyedLoadStubCompiler::CompileLoadConstant(String* name,
JSObject* receiver,
JSObject* holder,
Object* value) {
// ----------- S t a t e -------------
// -- esp[0] : return address
// -- esp[4] : name
// -- esp[8] : receiver
// -----------------------------------
Label miss;
__ mov(eax, (Operand(esp, kPointerSize)));
__ mov(ecx, (Operand(esp, 2 * kPointerSize)));
__ IncrementCounter(&Counters::keyed_load_constant_function, 1);
// Check that the name has not changed.
__ cmp(Operand(eax), Immediate(Handle<String>(name)));
__ j(not_equal, &miss, not_taken);
GenerateLoadConstant(masm(), receiver, holder, ecx, ebx, edx, value, &miss);
__ bind(&miss);
__ DecrementCounter(&Counters::keyed_load_constant_function, 1);
GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
// Return the generated code.
return GetCode(CONSTANT_FUNCTION, name);
}
Object* KeyedLoadStubCompiler::CompileLoadInterceptor(JSObject* receiver,
JSObject* holder,
String* name) {
// ----------- S t a t e -------------
// -- esp[0] : return address
// -- esp[4] : name
// -- esp[8] : receiver
// -----------------------------------
Label miss;
__ mov(eax, (Operand(esp, kPointerSize)));
__ mov(ecx, (Operand(esp, 2 * kPointerSize)));
__ IncrementCounter(&Counters::keyed_load_interceptor, 1);
// Check that the name has not changed.
__ cmp(Operand(eax), Immediate(Handle<String>(name)));
__ j(not_equal, &miss, not_taken);
Upgrade to v8 1.2.7
16 years ago
GenerateLoadInterceptor(masm(),
receiver,
holder,
Smi::FromInt(JSObject::kLookupInHolder),
ecx,
eax,
edx,
ebx,
&miss);
import full versions of dependency libraries!
16 years ago
__ bind(&miss);
__ DecrementCounter(&Counters::keyed_load_interceptor, 1);
GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
// Return the generated code.
return GetCode(INTERCEPTOR, name);
}
Object* KeyedLoadStubCompiler::CompileLoadArrayLength(String* name) {
// ----------- S t a t e -------------
// -- esp[0] : return address
// -- esp[4] : name
// -- esp[8] : receiver
// -----------------------------------
Label miss;
__ mov(eax, (Operand(esp, kPointerSize)));
__ mov(ecx, (Operand(esp, 2 * kPointerSize)));
__ IncrementCounter(&Counters::keyed_load_array_length, 1);
// Check that the name has not changed.
__ cmp(Operand(eax), Immediate(Handle<String>(name)));
__ j(not_equal, &miss, not_taken);
GenerateLoadArrayLength(masm(), ecx, edx, &miss);
__ bind(&miss);
__ DecrementCounter(&Counters::keyed_load_array_length, 1);
GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
// Return the generated code.
return GetCode(CALLBACKS, name);
}
Object* KeyedLoadStubCompiler::CompileLoadStringLength(String* name) {
// ----------- S t a t e -------------
// -- esp[0] : return address
// -- esp[4] : name
// -- esp[8] : receiver
// -----------------------------------
Label miss;
__ mov(eax, (Operand(esp, kPointerSize)));
__ mov(ecx, (Operand(esp, 2 * kPointerSize)));
__ IncrementCounter(&Counters::keyed_load_string_length, 1);
// Check that the name has not changed.
__ cmp(Operand(eax), Immediate(Handle<String>(name)));
__ j(not_equal, &miss, not_taken);
GenerateLoadStringLength(masm(), ecx, edx, &miss);
__ bind(&miss);
__ DecrementCounter(&Counters::keyed_load_string_length, 1);
GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
// Return the generated code.
return GetCode(CALLBACKS, name);
}
Object* KeyedLoadStubCompiler::CompileLoadFunctionPrototype(String* name) {
// ----------- S t a t e -------------
// -- esp[0] : return address
// -- esp[4] : name
// -- esp[8] : receiver
// -----------------------------------
Label miss;
__ mov(eax, (Operand(esp, kPointerSize)));
__ mov(ecx, (Operand(esp, 2 * kPointerSize)));
__ IncrementCounter(&Counters::keyed_load_function_prototype, 1);
// Check that the name has not changed.
__ cmp(Operand(eax), Immediate(Handle<String>(name)));
__ j(not_equal, &miss, not_taken);
GenerateLoadFunctionPrototype(masm(), ecx, edx, ebx, &miss);
__ bind(&miss);
__ DecrementCounter(&Counters::keyed_load_function_prototype, 1);
GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
// Return the generated code.
return GetCode(CALLBACKS, name);
}
#undef __
} } // namespace v8::internal