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// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/v8.h"
#if V8_TARGET_ARCH_X64
#include "src/ic/ic.h"
#include "src/ic/ic-compiler.h"
namespace v8 {
namespace internal {
#define __ ACCESS_MASM(masm)
void PropertyICCompiler::GenerateRuntimeSetProperty(MacroAssembler* masm,
StrictMode strict_mode) {
// Return address is on the stack.
DCHECK(!rbx.is(StoreDescriptor::ReceiverRegister()) &&
!rbx.is(StoreDescriptor::NameRegister()) &&
!rbx.is(StoreDescriptor::ValueRegister()));
__ PopReturnAddressTo(rbx);
__ Push(StoreDescriptor::ReceiverRegister());
__ Push(StoreDescriptor::NameRegister());
__ Push(StoreDescriptor::ValueRegister());
__ Push(Smi::FromInt(strict_mode));
__ PushReturnAddressFrom(rbx);
// Do tail-call to runtime routine.
__ TailCallRuntime(Runtime::kSetProperty, 4, 1);
}
#undef __
#define __ ACCESS_MASM(masm())
Handle<Code> PropertyICCompiler::CompileKeyedStorePolymorphic(
MapHandleList* receiver_maps, CodeHandleList* handler_stubs,
MapHandleList* transitioned_maps) {
Label miss;
__ JumpIfSmi(receiver(), &miss, Label::kNear);
__ movp(scratch1(), FieldOperand(receiver(), HeapObject::kMapOffset));
int receiver_count = receiver_maps->length();
for (int i = 0; i < receiver_count; ++i) {
// Check map and tail call if there's a match
__ Cmp(scratch1(), 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);
__ Move(transition_map(), transitioned_maps->at(i),
RelocInfo::EMBEDDED_OBJECT);
__ jmp(handler_stubs->at(i), RelocInfo::CODE_TARGET);
__ bind(&next_map);
}
}
__ bind(&miss);
TailCallBuiltin(masm(), MissBuiltin(kind()));
// Return the generated code.
return GetCode(kind(), Code::NORMAL, factory()->empty_string(), POLYMORPHIC);
}
Handle<Code> PropertyICCompiler::CompilePolymorphic(TypeHandleList* types,
CodeHandleList* handlers,
Handle<Name> name,
Code::StubType type,
IcCheckType check) {
Label miss;
if (check == PROPERTY &&
(kind() == Code::KEYED_LOAD_IC || kind() == Code::KEYED_STORE_IC)) {
// In case we are compiling an IC for dictionary loads and stores, just
// check whether the name is unique.
if (name.is_identical_to(isolate()->factory()->normal_ic_symbol())) {
Register tmp = scratch1();
__ JumpIfSmi(this->name(), &miss);
__ movp(tmp, FieldOperand(this->name(), HeapObject::kMapOffset));
__ movzxbp(tmp, FieldOperand(tmp, Map::kInstanceTypeOffset));
__ JumpIfNotUniqueNameInstanceType(tmp, &miss);
} else {
__ Cmp(this->name(), name);
__ j(not_equal, &miss);
}
}
Label number_case;
Label* smi_target = IncludesNumberType(types) ? &number_case : &miss;
__ JumpIfSmi(receiver(), smi_target);
// Polymorphic keyed stores may use the map register
Register map_reg = scratch1();
DCHECK(kind() != Code::KEYED_STORE_IC ||
map_reg.is(ElementTransitionAndStoreDescriptor::MapRegister()));
__ movp(map_reg, FieldOperand(receiver(), HeapObject::kMapOffset));
int receiver_count = types->length();
int number_of_handled_maps = 0;
for (int current = 0; current < receiver_count; ++current) {
Handle<HeapType> type = types->at(current);
Handle<Map> map = IC::TypeToMap(*type, isolate());
if (!map->is_deprecated()) {
number_of_handled_maps++;
// Check map and tail call if there's a match
__ Cmp(map_reg, map);
if (type->Is(HeapType::Number())) {
DCHECK(!number_case.is_unused());
__ bind(&number_case);
}
__ j(equal, handlers->at(current), RelocInfo::CODE_TARGET);
}
}
DCHECK(number_of_handled_maps > 0);
__ bind(&miss);
TailCallBuiltin(masm(), MissBuiltin(kind()));
// Return the generated code.
InlineCacheState state =
number_of_handled_maps > 1 ? POLYMORPHIC : MONOMORPHIC;
return GetCode(kind(), type, name, state);
}
#undef __
}
} // namespace v8::internal
#endif // V8_TARGET_ARCH_X64
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