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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 | |
7 namespace v8 { | |
8 namespace internal { | |
9 namespace compiler { | |
10 | |
11 bool InstructionScheduler::SchedulerSupported() { return true; } | |
12 | |
13 | |
14 int InstructionScheduler::GetTargetInstructionFlags( | |
15 const Instruction* instr) const { | |
16 switch (instr->arch_opcode()) { | |
17 case kIA32Add: | |
18 case kIA32And: | |
19 case kIA32Cmp: | |
20 case kIA32Test: | |
21 case kIA32Or: | |
22 case kIA32Xor: | |
23 case kIA32Sub: | |
24 case kIA32Imul: | |
25 case kIA32ImulHigh: | |
26 case kIA32UmulHigh: | |
27 case kIA32Idiv: | |
28 case kIA32Udiv: | |
29 case kIA32Not: | |
30 case kIA32Neg: | |
31 case kIA32Shl: | |
32 case kIA32Shr: | |
33 case kIA32Sar: | |
34 case kIA32Ror: | |
35 case kIA32Lzcnt: | |
36 case kIA32Tzcnt: | |
37 case kIA32Popcnt: | |
38 case kIA32Lea: | |
39 case kSSEFloat32Cmp: | |
40 case kSSEFloat32Add: | |
41 case kSSEFloat32Sub: | |
42 case kSSEFloat32Mul: | |
43 case kSSEFloat32Div: | |
44 case kSSEFloat32Max: | |
45 case kSSEFloat32Min: | |
46 case kSSEFloat32Abs: | |
47 case kSSEFloat32Neg: | |
48 case kSSEFloat32Sqrt: | |
49 case kSSEFloat32Round: | |
50 case kSSEFloat64Cmp: | |
51 case kSSEFloat64Add: | |
52 case kSSEFloat64Sub: | |
53 case kSSEFloat64Mul: | |
54 case kSSEFloat64Div: | |
55 case kSSEFloat64Mod: | |
56 case kSSEFloat64Max: | |
57 case kSSEFloat64Min: | |
58 case kSSEFloat64Abs: | |
59 case kSSEFloat64Neg: | |
60 case kSSEFloat64Sqrt: | |
61 case kSSEFloat64Round: | |
62 case kSSEFloat32ToFloat64: | |
63 case kSSEFloat64ToFloat32: | |
64 case kSSEFloat64ToInt32: | |
65 case kSSEFloat64ToUint32: | |
66 case kSSEInt32ToFloat64: | |
67 case kSSEUint32ToFloat64: | |
68 case kSSEFloat64ExtractLowWord32: | |
69 case kSSEFloat64ExtractHighWord32: | |
70 case kSSEFloat64InsertLowWord32: | |
71 case kSSEFloat64InsertHighWord32: | |
72 case kSSEFloat64LoadLowWord32: | |
73 case kAVXFloat32Add: | |
74 case kAVXFloat32Sub: | |
75 case kAVXFloat32Mul: | |
76 case kAVXFloat32Div: | |
77 case kAVXFloat32Max: | |
78 case kAVXFloat32Min: | |
79 case kAVXFloat64Add: | |
80 case kAVXFloat64Sub: | |
81 case kAVXFloat64Mul: | |
82 case kAVXFloat64Div: | |
83 case kAVXFloat64Max: | |
84 case kAVXFloat64Min: | |
85 case kAVXFloat64Abs: | |
86 case kAVXFloat64Neg: | |
87 case kAVXFloat32Abs: | |
88 case kAVXFloat32Neg: | |
89 case kIA32BitcastFI: | |
90 case kIA32BitcastIF: | |
91 return (instr->addressing_mode() == kMode_None) | |
92 ? kNoOpcodeFlags | |
93 : kIsLoadOperation | kHasSideEffect; | |
94 | |
95 case kIA32Movsxbl: | |
96 case kIA32Movzxbl: | |
97 case kIA32Movb: | |
98 case kIA32Movsxwl: | |
99 case kIA32Movzxwl: | |
100 case kIA32Movw: | |
101 case kIA32Movl: | |
102 case kIA32Movss: | |
103 case kIA32Movsd: | |
104 // Moves are used for memory load/store operations. | |
105 return instr->HasOutput() ? kIsLoadOperation : kHasSideEffect; | |
106 | |
107 case kIA32StackCheck: | |
108 return kIsLoadOperation; | |
109 | |
110 case kIA32Push: | |
111 case kIA32Poke: | |
112 return kHasSideEffect; | |
113 | |
114 #define CASE(Name) case k##Name: | |
115 COMMON_ARCH_OPCODE_LIST(CASE) | |
116 #undef CASE | |
117 // Already covered in architecture independent code. | |
118 UNREACHABLE(); | |
119 } | |
120 | |
121 UNREACHABLE(); | |
122 return kNoOpcodeFlags; | |
123 } | |
124 | |
125 | |
126 int InstructionScheduler::GetInstructionLatency(const Instruction* instr) { | |
127 // TODO(all): Add instruction cost modeling. | |
128 return 1; | |
129 } | |
130 | |
131 } // namespace compiler | |
132 } // namespace internal | |
133 } // namespace v8 | |
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