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 kPPC_And:
18    case kPPC_AndComplement:
19    case kPPC_Or:
20    case kPPC_OrComplement:
21    case kPPC_Xor:
22    case kPPC_ShiftLeft32:
23    case kPPC_ShiftLeft64:
24    case kPPC_ShiftLeftPair:
25    case kPPC_ShiftRight32:
26    case kPPC_ShiftRight64:
27    case kPPC_ShiftRightPair:
28    case kPPC_ShiftRightAlg32:
29    case kPPC_ShiftRightAlg64:
30    case kPPC_ShiftRightAlgPair:
31    case kPPC_RotRight32:
32    case kPPC_RotRight64:
33    case kPPC_Not:
34    case kPPC_RotLeftAndMask32:
35    case kPPC_RotLeftAndClear64:
36    case kPPC_RotLeftAndClearLeft64:
37    case kPPC_RotLeftAndClearRight64:
38    case kPPC_Add32:
39    case kPPC_Add64:
40    case kPPC_AddWithOverflow32:
41    case kPPC_AddPair:
42    case kPPC_AddDouble:
43    case kPPC_Sub:
44    case kPPC_SubWithOverflow32:
45    case kPPC_SubPair:
46    case kPPC_SubDouble:
47    case kPPC_Mul32:
48    case kPPC_Mul32WithHigh32:
49    case kPPC_Mul64:
50    case kPPC_MulHigh32:
51    case kPPC_MulHighU32:
52    case kPPC_MulPair:
53    case kPPC_MulDouble:
54    case kPPC_Div32:
55    case kPPC_Div64:
56    case kPPC_DivU32:
57    case kPPC_DivU64:
58    case kPPC_DivDouble:
59    case kPPC_Mod32:
60    case kPPC_Mod64:
61    case kPPC_ModU32:
62    case kPPC_ModU64:
63    case kPPC_ModDouble:
64    case kPPC_Neg:
65    case kPPC_NegDouble:
66    case kPPC_SqrtDouble:
67    case kPPC_FloorDouble:
68    case kPPC_CeilDouble:
69    case kPPC_TruncateDouble:
70    case kPPC_RoundDouble:
71    case kPPC_MaxDouble:
72    case kPPC_MinDouble:
73    case kPPC_AbsDouble:
74    case kPPC_Cntlz32:
75    case kPPC_Cntlz64:
76    case kPPC_Popcnt32:
77    case kPPC_Popcnt64:
78    case kPPC_Cmp32:
79    case kPPC_Cmp64:
80    case kPPC_CmpDouble:
81    case kPPC_Tst32:
82    case kPPC_Tst64:
83    case kPPC_ExtendSignWord8:
84    case kPPC_ExtendSignWord16:
85    case kPPC_ExtendSignWord32:
86    case kPPC_Uint32ToUint64:
87    case kPPC_Int64ToInt32:
88    case kPPC_Int64ToFloat32:
89    case kPPC_Int64ToDouble:
90    case kPPC_Uint64ToFloat32:
91    case kPPC_Uint64ToDouble:
92    case kPPC_Int32ToFloat32:
93    case kPPC_Int32ToDouble:
94    case kPPC_Uint32ToFloat32:
95    case kPPC_Uint32ToDouble:
96    case kPPC_Float32ToDouble:
97    case kPPC_Float64SilenceNaN:
98    case kPPC_DoubleToInt32:
99    case kPPC_DoubleToUint32:
100    case kPPC_DoubleToInt64:
101    case kPPC_DoubleToUint64:
102    case kPPC_DoubleToFloat32:
103    case kPPC_DoubleExtractLowWord32:
104    case kPPC_DoubleExtractHighWord32:
105    case kPPC_DoubleInsertLowWord32:
106    case kPPC_DoubleInsertHighWord32:
107    case kPPC_DoubleConstruct:
108    case kPPC_BitcastInt32ToFloat32:
109    case kPPC_BitcastFloat32ToInt32:
110    case kPPC_BitcastInt64ToDouble:
111    case kPPC_BitcastDoubleToInt64:
112      return kNoOpcodeFlags;
113
114    case kPPC_LoadWordS8:
115    case kPPC_LoadWordU8:
116    case kPPC_LoadWordS16:
117    case kPPC_LoadWordU16:
118    case kPPC_LoadWordS32:
119    case kPPC_LoadWordU32:
120    case kPPC_LoadWord64:
121    case kPPC_LoadFloat32:
122    case kPPC_LoadDouble:
123      return kIsLoadOperation;
124
125    case kPPC_StoreWord8:
126    case kPPC_StoreWord16:
127    case kPPC_StoreWord32:
128    case kPPC_StoreWord64:
129    case kPPC_StoreFloat32:
130    case kPPC_StoreDouble:
131    case kPPC_Push:
132    case kPPC_PushFrame:
133    case kPPC_StoreToStackSlot:
134      return kHasSideEffect;
135
136#define CASE(Name) case k##Name:
137    COMMON_ARCH_OPCODE_LIST(CASE)
138#undef CASE
139      // Already covered in architecture independent code.
140      UNREACHABLE();
141  }
142
143  UNREACHABLE();
144  return kNoOpcodeFlags;
145}
146
147
148int InstructionScheduler::GetInstructionLatency(const Instruction* instr) {
149  // TODO(all): Add instruction cost modeling.
150  return 1;
151}
152
153}  // namespace compiler
154}  // namespace internal
155}  // namespace v8
156