1// Copyright 2014 the V8 project authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "src/v8.h"
6
7#if V8_TARGET_ARCH_ARM
8
9#include "src/ic/ic.h"
10#include "src/ic/ic-compiler.h"
11
12namespace v8 {
13namespace internal {
14
15#define __ ACCESS_MASM(masm)
16
17
18void PropertyICCompiler::GenerateRuntimeSetProperty(MacroAssembler* masm,
19                                                    StrictMode strict_mode) {
20  __ Push(StoreDescriptor::ReceiverRegister(), StoreDescriptor::NameRegister(),
21          StoreDescriptor::ValueRegister());
22
23  __ mov(r0, Operand(Smi::FromInt(strict_mode)));
24  __ Push(r0);
25
26  // Do tail-call to runtime routine.
27  __ TailCallRuntime(Runtime::kSetProperty, 4, 1);
28}
29
30
31#undef __
32#define __ ACCESS_MASM(masm())
33
34
35Handle<Code> PropertyICCompiler::CompilePolymorphic(TypeHandleList* types,
36                                                    CodeHandleList* handlers,
37                                                    Handle<Name> name,
38                                                    Code::StubType type,
39                                                    IcCheckType check) {
40  Label miss;
41
42  if (check == PROPERTY &&
43      (kind() == Code::KEYED_LOAD_IC || kind() == Code::KEYED_STORE_IC)) {
44    // In case we are compiling an IC for dictionary loads and stores, just
45    // check whether the name is unique.
46    if (name.is_identical_to(isolate()->factory()->normal_ic_symbol())) {
47      Register tmp = scratch1();
48      __ JumpIfSmi(this->name(), &miss);
49      __ ldr(tmp, FieldMemOperand(this->name(), HeapObject::kMapOffset));
50      __ ldrb(tmp, FieldMemOperand(tmp, Map::kInstanceTypeOffset));
51      __ JumpIfNotUniqueNameInstanceType(tmp, &miss);
52    } else {
53      __ cmp(this->name(), Operand(name));
54      __ b(ne, &miss);
55    }
56  }
57
58  Label number_case;
59  Label* smi_target = IncludesNumberType(types) ? &number_case : &miss;
60  __ JumpIfSmi(receiver(), smi_target);
61
62  // Polymorphic keyed stores may use the map register
63  Register map_reg = scratch1();
64  DCHECK(kind() != Code::KEYED_STORE_IC ||
65         map_reg.is(ElementTransitionAndStoreDescriptor::MapRegister()));
66
67  int receiver_count = types->length();
68  int number_of_handled_maps = 0;
69  __ ldr(map_reg, FieldMemOperand(receiver(), HeapObject::kMapOffset));
70  for (int current = 0; current < receiver_count; ++current) {
71    Handle<HeapType> type = types->at(current);
72    Handle<Map> map = IC::TypeToMap(*type, isolate());
73    if (!map->is_deprecated()) {
74      number_of_handled_maps++;
75      __ mov(ip, Operand(map));
76      __ cmp(map_reg, ip);
77      if (type->Is(HeapType::Number())) {
78        DCHECK(!number_case.is_unused());
79        __ bind(&number_case);
80      }
81      __ Jump(handlers->at(current), RelocInfo::CODE_TARGET, eq);
82    }
83  }
84  DCHECK(number_of_handled_maps != 0);
85
86  __ bind(&miss);
87  TailCallBuiltin(masm(), MissBuiltin(kind()));
88
89  // Return the generated code.
90  InlineCacheState state =
91      number_of_handled_maps > 1 ? POLYMORPHIC : MONOMORPHIC;
92  return GetCode(kind(), type, name, state);
93}
94
95
96Handle<Code> PropertyICCompiler::CompileKeyedStorePolymorphic(
97    MapHandleList* receiver_maps, CodeHandleList* handler_stubs,
98    MapHandleList* transitioned_maps) {
99  Label miss;
100  __ JumpIfSmi(receiver(), &miss);
101
102  int receiver_count = receiver_maps->length();
103  __ ldr(scratch1(), FieldMemOperand(receiver(), HeapObject::kMapOffset));
104  for (int i = 0; i < receiver_count; ++i) {
105    __ mov(ip, Operand(receiver_maps->at(i)));
106    __ cmp(scratch1(), ip);
107    if (transitioned_maps->at(i).is_null()) {
108      __ Jump(handler_stubs->at(i), RelocInfo::CODE_TARGET, eq);
109    } else {
110      Label next_map;
111      __ b(ne, &next_map);
112      __ mov(transition_map(), Operand(transitioned_maps->at(i)));
113      __ Jump(handler_stubs->at(i), RelocInfo::CODE_TARGET, al);
114      __ bind(&next_map);
115    }
116  }
117
118  __ bind(&miss);
119  TailCallBuiltin(masm(), MissBuiltin(kind()));
120
121  // Return the generated code.
122  return GetCode(kind(), Code::NORMAL, factory()->empty_string(), POLYMORPHIC);
123}
124
125
126#undef __
127}
128}  // namespace v8::internal
129
130#endif  // V8_TARGET_ARCH_ARM
131