1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ART_COMPILER_OPTIMIZING_NODES_X86_H_
18#define ART_COMPILER_OPTIMIZING_NODES_X86_H_
19
20namespace art {
21
22// Compute the address of the method for X86 Constant area support.
23class HX86ComputeBaseMethodAddress : public HExpression<0> {
24 public:
25  // Treat the value as an int32_t, but it is really a 32 bit native pointer.
26  HX86ComputeBaseMethodAddress()
27      : HExpression(Primitive::kPrimInt, SideEffects::None(), kNoDexPc) {}
28
29  DECLARE_INSTRUCTION(X86ComputeBaseMethodAddress);
30
31 private:
32  DISALLOW_COPY_AND_ASSIGN(HX86ComputeBaseMethodAddress);
33};
34
35// Load a constant value from the constant table.
36class HX86LoadFromConstantTable : public HExpression<2> {
37 public:
38  HX86LoadFromConstantTable(HX86ComputeBaseMethodAddress* method_base,
39                            HConstant* constant)
40      : HExpression(constant->GetType(), SideEffects::None(), kNoDexPc) {
41    SetRawInputAt(0, method_base);
42    SetRawInputAt(1, constant);
43  }
44
45  HX86ComputeBaseMethodAddress* GetBaseMethodAddress() const {
46    return InputAt(0)->AsX86ComputeBaseMethodAddress();
47  }
48
49  HConstant* GetConstant() const {
50    return InputAt(1)->AsConstant();
51  }
52
53  DECLARE_INSTRUCTION(X86LoadFromConstantTable);
54
55 private:
56  DISALLOW_COPY_AND_ASSIGN(HX86LoadFromConstantTable);
57};
58
59// Version of HNeg with access to the constant table for FP types.
60class HX86FPNeg : public HExpression<2> {
61 public:
62  HX86FPNeg(Primitive::Type result_type,
63            HInstruction* input,
64            HX86ComputeBaseMethodAddress* method_base,
65            uint32_t dex_pc)
66      : HExpression(result_type, SideEffects::None(), dex_pc) {
67    DCHECK(Primitive::IsFloatingPointType(result_type));
68    SetRawInputAt(0, input);
69    SetRawInputAt(1, method_base);
70  }
71
72  DECLARE_INSTRUCTION(X86FPNeg);
73
74 private:
75  DISALLOW_COPY_AND_ASSIGN(HX86FPNeg);
76};
77
78// X86 version of HPackedSwitch that holds a pointer to the base method address.
79class HX86PackedSwitch : public HTemplateInstruction<2> {
80 public:
81  HX86PackedSwitch(int32_t start_value,
82                   int32_t num_entries,
83                   HInstruction* input,
84                   HX86ComputeBaseMethodAddress* method_base,
85                   uint32_t dex_pc)
86    : HTemplateInstruction(SideEffects::None(), dex_pc),
87      start_value_(start_value),
88      num_entries_(num_entries) {
89    SetRawInputAt(0, input);
90    SetRawInputAt(1, method_base);
91  }
92
93  bool IsControlFlow() const OVERRIDE { return true; }
94
95  int32_t GetStartValue() const { return start_value_; }
96
97  int32_t GetNumEntries() const { return num_entries_; }
98
99  HX86ComputeBaseMethodAddress* GetBaseMethodAddress() const {
100    return InputAt(1)->AsX86ComputeBaseMethodAddress();
101  }
102
103  HBasicBlock* GetDefaultBlock() const {
104    // Last entry is the default block.
105    return GetBlock()->GetSuccessors()[num_entries_];
106  }
107
108  DECLARE_INSTRUCTION(X86PackedSwitch);
109
110 private:
111  const int32_t start_value_;
112  const int32_t num_entries_;
113
114  DISALLOW_COPY_AND_ASSIGN(HX86PackedSwitch);
115};
116
117}  // namespace art
118
119#endif  // ART_COMPILER_OPTIMIZING_NODES_X86_H_
120