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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_ARM64
#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) {
ASM_LOCATION("PropertyICCompiler::GenerateRuntimeSetProperty");
__ Push(StoreDescriptor::ReceiverRegister(), StoreDescriptor::NameRegister(),
StoreDescriptor::ValueRegister());
__ Mov(x10, Smi::FromInt(strict_mode));
__ Push(x10);
// Do tail-call to runtime routine.
__ TailCallRuntime(Runtime::kSetProperty, 4, 1);
}
#undef __
#define __ ACCESS_MASM(masm())
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);
__ Ldr(tmp, FieldMemOperand(this->name(), HeapObject::kMapOffset));
__ Ldrb(tmp, FieldMemOperand(tmp, Map::kInstanceTypeOffset));
__ JumpIfNotUniqueNameInstanceType(tmp, &miss);
} else {
__ CompareAndBranch(this->name(), Operand(name), ne, &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()));
__ Ldr(map_reg, FieldMemOperand(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++;
Label try_next;
__ Cmp(map_reg, Operand(map));
__ B(ne, &try_next);
if (type->Is(HeapType::Number())) {
DCHECK(!number_case.is_unused());
__ Bind(&number_case);
}
__ Jump(handlers->at(current), RelocInfo::CODE_TARGET);
__ Bind(&try_next);
}
}
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);
}
Handle<Code> PropertyICCompiler::CompileKeyedStorePolymorphic(
MapHandleList* receiver_maps, CodeHandleList* handler_stubs,
MapHandleList* transitioned_maps) {
Label miss;
ASM_LOCATION("PropertyICCompiler::CompileStorePolymorphic");
__ JumpIfSmi(receiver(), &miss);
int receiver_count = receiver_maps->length();
__ Ldr(scratch1(), FieldMemOperand(receiver(), HeapObject::kMapOffset));
for (int i = 0; i < receiver_count; i++) {
__ Cmp(scratch1(), Operand(receiver_maps->at(i)));
Label skip;
__ B(&skip, ne);
if (!transitioned_maps->at(i).is_null()) {
// This argument is used by the handler stub. For example, see
// ElementsTransitionGenerator::GenerateMapChangeElementsTransition.
__ Mov(transition_map(), Operand(transitioned_maps->at(i)));
}
__ Jump(handler_stubs->at(i), RelocInfo::CODE_TARGET);
__ Bind(&skip);
}
__ Bind(&miss);
TailCallBuiltin(masm(), MissBuiltin(kind()));
return GetCode(kind(), Code::NORMAL, factory()->empty_string(), POLYMORPHIC);
}
#undef __
}
} // namespace v8::internal
#endif // V8_TARGET_ARCH_ARM64
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