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gerrit-public.fairphone.software / fp2-dev / platform / external / v8 / 4a90d5fbbb6802c59093b866f3478a814bf02b95 / . / src / compiler / x64 / instruction-scheduler-x64.cc
blob: f8537c879c4bdfef00b08044d8e6b386664621c2 [file] [log] [blame]
Ben Murdoch4a90d5f2016-03-22 12:00:34 +0000[diff] [blame^]1// Copyright 2015 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/compiler/instruction-scheduler.h"
6
7namespace v8 {
8namespace internal {
9namespace compiler {
10
11bool InstructionScheduler::SchedulerSupported() { return true; }
12
13
14int InstructionScheduler::GetTargetInstructionFlags(
15 const Instruction* instr) const {
16 switch (instr->arch_opcode()) {
17 case kX64Add:
18 case kX64Add32:
19 case kX64And:
20 case kX64And32:
21 case kX64Cmp:
22 case kX64Cmp32:
23 case kX64Test:
24 case kX64Test32:
25 case kX64Or:
26 case kX64Or32:
27 case kX64Xor:
28 case kX64Xor32:
29 case kX64Sub:
30 case kX64Sub32:
31 case kX64Imul:
32 case kX64Imul32:
33 case kX64ImulHigh32:
34 case kX64UmulHigh32:
35 case kX64Idiv:
36 case kX64Idiv32:
37 case kX64Udiv:
38 case kX64Udiv32:
39 case kX64Not:
40 case kX64Not32:
41 case kX64Neg:
42 case kX64Neg32:
43 case kX64Shl:
44 case kX64Shl32:
45 case kX64Shr:
46 case kX64Shr32:
47 case kX64Sar:
48 case kX64Sar32:
49 case kX64Ror:
50 case kX64Ror32:
51 case kX64Lzcnt:
52 case kX64Lzcnt32:
53 case kX64Tzcnt:
54 case kX64Tzcnt32:
55 case kX64Popcnt:
56 case kX64Popcnt32:
57 case kSSEFloat32Cmp:
58 case kSSEFloat32Add:
59 case kSSEFloat32Sub:
60 case kSSEFloat32Mul:
61 case kSSEFloat32Div:
62 case kSSEFloat32Abs:
63 case kSSEFloat32Neg:
64 case kSSEFloat32Sqrt:
65 case kSSEFloat32Round:
66 case kSSEFloat32Max:
67 case kSSEFloat32Min:
68 case kSSEFloat32ToFloat64:
69 case kSSEFloat64Cmp:
70 case kSSEFloat64Add:
71 case kSSEFloat64Sub:
72 case kSSEFloat64Mul:
73 case kSSEFloat64Div:
74 case kSSEFloat64Mod:
75 case kSSEFloat64Abs:
76 case kSSEFloat64Neg:
77 case kSSEFloat64Sqrt:
78 case kSSEFloat64Round:
79 case kSSEFloat64Max:
80 case kSSEFloat64Min:
81 case kSSEFloat64ToFloat32:
82 case kSSEFloat64ToInt32:
83 case kSSEFloat64ToUint32:
84 case kSSEFloat64ToInt64:
85 case kSSEFloat32ToInt64:
86 case kSSEFloat64ToUint64:
87 case kSSEFloat32ToUint64:
88 case kSSEInt32ToFloat64:
89 case kSSEInt64ToFloat32:
90 case kSSEInt64ToFloat64:
91 case kSSEUint64ToFloat32:
92 case kSSEUint64ToFloat64:
93 case kSSEUint32ToFloat64:
94 case kSSEFloat64ExtractLowWord32:
95 case kSSEFloat64ExtractHighWord32:
96 case kSSEFloat64InsertLowWord32:
97 case kSSEFloat64InsertHighWord32:
98 case kSSEFloat64LoadLowWord32:
99 case kAVXFloat32Cmp:
100 case kAVXFloat32Add:
101 case kAVXFloat32Sub:
102 case kAVXFloat32Mul:
103 case kAVXFloat32Div:
104 case kAVXFloat32Max:
105 case kAVXFloat32Min:
106 case kAVXFloat64Cmp:
107 case kAVXFloat64Add:
108 case kAVXFloat64Sub:
109 case kAVXFloat64Mul:
110 case kAVXFloat64Div:
111 case kAVXFloat64Max:
112 case kAVXFloat64Min:
113 case kAVXFloat64Abs:
114 case kAVXFloat64Neg:
115 case kAVXFloat32Abs:
116 case kAVXFloat32Neg:
117 case kX64BitcastFI:
118 case kX64BitcastDL:
119 case kX64BitcastIF:
120 case kX64BitcastLD:
121 case kX64Lea32:
122 case kX64Lea:
123 case kX64Dec32:
124 case kX64Inc32:
125 return (instr->addressing_mode() == kMode_None)
126 ? kNoOpcodeFlags
127 : kIsLoadOperation | kHasSideEffect;
128
129 case kX64Movsxbl:
130 case kX64Movzxbl:
131 case kX64Movsxwl:
132 case kX64Movzxwl:
133 case kX64Movsxlq:
134 DCHECK(instr->InputCount() >= 1);
135 return instr->InputAt(0)->IsRegister() ? kNoOpcodeFlags
136 : kIsLoadOperation;
137
138 case kX64Movb:
139 case kX64Movw:
140 return kHasSideEffect;
141
142 case kX64Movl:
143 if (instr->HasOutput()) {
144 DCHECK(instr->InputCount() >= 1);
145 return instr->InputAt(0)->IsRegister() ? kNoOpcodeFlags
146 : kIsLoadOperation;
147 } else {
148 return kHasSideEffect;
149 }
150
151 case kX64Movq:
152 case kX64Movsd:
153 case kX64Movss:
154 return instr->HasOutput() ? kIsLoadOperation : kHasSideEffect;
155
156 case kX64StackCheck:
157 return kIsLoadOperation;
158
159 case kX64Push:
160 case kX64Poke:
161 return kHasSideEffect;
162
163#define CASE(Name) case k##Name:
164 COMMON_ARCH_OPCODE_LIST(CASE)
165#undef CASE
166 // Already covered in architecture independent code.
167 UNREACHABLE();
168 }
169
170 UNREACHABLE();
171 return kNoOpcodeFlags;
172}
173
174
175int InstructionScheduler::GetInstructionLatency(const Instruction* instr) {
176 // TODO(all): Add instruction cost modeling.
177 return 1;
178}
179
180} // namespace compiler
181} // namespace internal
182} // namespace v8