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_MIPS64
8
9 #include "src/ic/ic.h"
10 #include "src/ic/ic-compiler.h"
11
12 namespace v8 {
13 namespace internal {
14
15 #define __ ACCESS_MASM(masm())
16
17
CompilePolymorphic(TypeHandleList * types,CodeHandleList * handlers,Handle<Name> name,Code::StubType type,IcCheckType check)18 Handle<Code> PropertyICCompiler::CompilePolymorphic(TypeHandleList* types,
19 CodeHandleList* handlers,
20 Handle<Name> name,
21 Code::StubType type,
22 IcCheckType check) {
23 Label miss;
24
25 if (check == PROPERTY &&
26 (kind() == Code::KEYED_LOAD_IC || kind() == Code::KEYED_STORE_IC)) {
27 // In case we are compiling an IC for dictionary loads and stores, just
28 // check whether the name is unique.
29 if (name.is_identical_to(isolate()->factory()->normal_ic_symbol())) {
30 Register tmp = scratch1();
31 __ JumpIfSmi(this->name(), &miss);
32 __ ld(tmp, FieldMemOperand(this->name(), HeapObject::kMapOffset));
33 __ lbu(tmp, FieldMemOperand(tmp, Map::kInstanceTypeOffset));
34 __ JumpIfNotUniqueNameInstanceType(tmp, &miss);
35 } else {
36 __ Branch(&miss, ne, this->name(), Operand(name));
37 }
38 }
39
40 Label number_case;
41 Register match = scratch2();
42 Label* smi_target = IncludesNumberType(types) ? &number_case : &miss;
43 __ JumpIfSmi(receiver(), smi_target, match); // Reg match is 0 if Smi.
44
45 // Polymorphic keyed stores may use the map register
46 Register map_reg = scratch1();
47 DCHECK(kind() != Code::KEYED_STORE_IC ||
48 map_reg.is(ElementTransitionAndStoreDescriptor::MapRegister()));
49
50 int receiver_count = types->length();
51 int number_of_handled_maps = 0;
52 __ ld(map_reg, FieldMemOperand(receiver(), HeapObject::kMapOffset));
53 for (int current = 0; current < receiver_count; ++current) {
54 Handle<HeapType> type = types->at(current);
55 Handle<Map> map = IC::TypeToMap(*type, isolate());
56 if (!map->is_deprecated()) {
57 number_of_handled_maps++;
58 // Check map and tail call if there's a match.
59 // Separate compare from branch, to provide path for above JumpIfSmi().
60 __ Dsubu(match, map_reg, Operand(map));
61 if (type->Is(HeapType::Number())) {
62 DCHECK(!number_case.is_unused());
63 __ bind(&number_case);
64 }
65 __ Jump(handlers->at(current), RelocInfo::CODE_TARGET, eq, match,
66 Operand(zero_reg));
67 }
68 }
69 DCHECK(number_of_handled_maps != 0);
70
71 __ bind(&miss);
72 TailCallBuiltin(masm(), MissBuiltin(kind()));
73
74 // Return the generated code.
75 InlineCacheState state =
76 number_of_handled_maps > 1 ? POLYMORPHIC : MONOMORPHIC;
77 return GetCode(kind(), type, name, state);
78 }
79
80
CompileKeyedStorePolymorphic(MapHandleList * receiver_maps,CodeHandleList * handler_stubs,MapHandleList * transitioned_maps)81 Handle<Code> PropertyICCompiler::CompileKeyedStorePolymorphic(
82 MapHandleList* receiver_maps, CodeHandleList* handler_stubs,
83 MapHandleList* transitioned_maps) {
84 Label miss;
85 __ JumpIfSmi(receiver(), &miss);
86
87 int receiver_count = receiver_maps->length();
88 __ ld(scratch1(), FieldMemOperand(receiver(), HeapObject::kMapOffset));
89 for (int i = 0; i < receiver_count; ++i) {
90 if (transitioned_maps->at(i).is_null()) {
91 __ Jump(handler_stubs->at(i), RelocInfo::CODE_TARGET, eq, scratch1(),
92 Operand(receiver_maps->at(i)));
93 } else {
94 Label next_map;
95 __ Branch(&next_map, ne, scratch1(), Operand(receiver_maps->at(i)));
96 __ li(transition_map(), Operand(transitioned_maps->at(i)));
97 __ Jump(handler_stubs->at(i), RelocInfo::CODE_TARGET);
98 __ bind(&next_map);
99 }
100 }
101
102 __ bind(&miss);
103 TailCallBuiltin(masm(), MissBuiltin(kind()));
104
105 // Return the generated code.
106 return GetCode(kind(), Code::NORMAL, factory()->empty_string(), POLYMORPHIC);
107 }
108
109
110 #undef __
111 #define __ ACCESS_MASM(masm)
112
113
GenerateRuntimeSetProperty(MacroAssembler * masm,StrictMode strict_mode)114 void PropertyICCompiler::GenerateRuntimeSetProperty(MacroAssembler* masm,
115 StrictMode strict_mode) {
116 __ Push(StoreDescriptor::ReceiverRegister(), StoreDescriptor::NameRegister(),
117 StoreDescriptor::ValueRegister());
118
119 __ li(a0, Operand(Smi::FromInt(strict_mode)));
120 __ Push(a0);
121
122 // Do tail-call to runtime routine.
123 __ TailCallRuntime(Runtime::kSetProperty, 4, 1);
124 }
125
126
127 #undef __
128 }
129 } // namespace v8::internal
130
131 #endif // V8_TARGET_ARCH_MIPS64
132