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gerrit-public.fairphone.software / fp2-dev / platform / external / v8 / 4a90d5fbbb6802c59093b866f3478a814bf02b95 / . / src / compiler / ia32 / instruction-scheduler-ia32.cc
blob: 0a8fcac59a30a923b3e740eb3ae4eb7fe73d5fe8 [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 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 kIA32PushFloat32:
112 case kIA32PushFloat64:
113 case kIA32Poke:
114 return kHasSideEffect;
115
116#define CASE(Name) case k##Name:
117 COMMON_ARCH_OPCODE_LIST(CASE)
118#undef CASE
119 // Already covered in architecture independent code.
120 UNREACHABLE();
121 }
122
123 UNREACHABLE();
124 return kNoOpcodeFlags;
125}
126
127
128int InstructionScheduler::GetInstructionLatency(const Instruction* instr) {
129 // TODO(all): Add instruction cost modeling.
130 return 1;
131}
132
133} // namespace compiler
134} // namespace internal
135} // namespace v8