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
13int InstructionScheduler::GetTargetInstructionFlags(
14    const Instruction* instr) const {
15  switch (instr->arch_opcode()) {
16    case kS390_And32:
17    case kS390_And64:
18    case kS390_Or32:
19    case kS390_Or64:
20    case kS390_Xor32:
21    case kS390_Xor64:
22    case kS390_ShiftLeft32:
23    case kS390_ShiftLeft64:
24    case kS390_ShiftLeftPair:
25    case kS390_ShiftRight32:
26    case kS390_ShiftRight64:
27    case kS390_ShiftRightPair:
28    case kS390_ShiftRightArith32:
29    case kS390_ShiftRightArith64:
30    case kS390_ShiftRightArithPair:
31    case kS390_RotRight32:
32    case kS390_RotRight64:
33    case kS390_Not32:
34    case kS390_Not64:
35    case kS390_RotLeftAndClear64:
36    case kS390_RotLeftAndClearLeft64:
37    case kS390_RotLeftAndClearRight64:
38    case kS390_Lay:
39    case kS390_Add32:
40    case kS390_Add64:
41    case kS390_AddPair:
42    case kS390_AddFloat:
43    case kS390_AddDouble:
44    case kS390_Sub32:
45    case kS390_Sub64:
46    case kS390_SubPair:
47    case kS390_MulPair:
48    case kS390_SubFloat:
49    case kS390_SubDouble:
50    case kS390_Mul32:
51    case kS390_Mul32WithOverflow:
52    case kS390_Mul64:
53    case kS390_MulHigh32:
54    case kS390_MulHighU32:
55    case kS390_MulFloat:
56    case kS390_MulDouble:
57    case kS390_Div32:
58    case kS390_Div64:
59    case kS390_DivU32:
60    case kS390_DivU64:
61    case kS390_DivFloat:
62    case kS390_DivDouble:
63    case kS390_Mod32:
64    case kS390_Mod64:
65    case kS390_ModU32:
66    case kS390_ModU64:
67    case kS390_ModDouble:
68    case kS390_Neg32:
69    case kS390_Neg64:
70    case kS390_NegDouble:
71    case kS390_NegFloat:
72    case kS390_SqrtFloat:
73    case kS390_FloorFloat:
74    case kS390_CeilFloat:
75    case kS390_TruncateFloat:
76    case kS390_AbsFloat:
77    case kS390_SqrtDouble:
78    case kS390_FloorDouble:
79    case kS390_CeilDouble:
80    case kS390_TruncateDouble:
81    case kS390_RoundDouble:
82    case kS390_MaxFloat:
83    case kS390_MaxDouble:
84    case kS390_MinFloat:
85    case kS390_MinDouble:
86    case kS390_AbsDouble:
87    case kS390_Cntlz32:
88    case kS390_Cntlz64:
89    case kS390_Popcnt32:
90    case kS390_Popcnt64:
91    case kS390_Cmp32:
92    case kS390_Cmp64:
93    case kS390_CmpFloat:
94    case kS390_CmpDouble:
95    case kS390_Tst32:
96    case kS390_Tst64:
97    case kS390_ExtendSignWord8:
98    case kS390_ExtendSignWord16:
99    case kS390_ExtendSignWord32:
100    case kS390_Uint32ToUint64:
101    case kS390_Int64ToInt32:
102    case kS390_Int64ToFloat32:
103    case kS390_Int64ToDouble:
104    case kS390_Uint64ToFloat32:
105    case kS390_Uint64ToDouble:
106    case kS390_Int32ToFloat32:
107    case kS390_Int32ToDouble:
108    case kS390_Uint32ToFloat32:
109    case kS390_Uint32ToDouble:
110    case kS390_Float32ToInt32:
111    case kS390_Float32ToUint32:
112    case kS390_Float32ToUint64:
113    case kS390_Float32ToDouble:
114    case kS390_Float64SilenceNaN:
115    case kS390_DoubleToInt32:
116    case kS390_DoubleToUint32:
117    case kS390_Float32ToInt64:
118    case kS390_DoubleToInt64:
119    case kS390_DoubleToUint64:
120    case kS390_DoubleToFloat32:
121    case kS390_DoubleExtractLowWord32:
122    case kS390_DoubleExtractHighWord32:
123    case kS390_DoubleInsertLowWord32:
124    case kS390_DoubleInsertHighWord32:
125    case kS390_DoubleConstruct:
126    case kS390_BitcastInt32ToFloat32:
127    case kS390_BitcastFloat32ToInt32:
128    case kS390_BitcastInt64ToDouble:
129    case kS390_BitcastDoubleToInt64:
130    case kS390_LoadReverse16RR:
131    case kS390_LoadReverse32RR:
132    case kS390_LoadReverse64RR:
133    case kS390_LoadAndTestWord32:
134    case kS390_LoadAndTestWord64:
135    case kS390_LoadAndTestFloat32:
136    case kS390_LoadAndTestFloat64:
137      return kNoOpcodeFlags;
138
139    case kS390_LoadWordS8:
140    case kS390_LoadWordU8:
141    case kS390_LoadWordS16:
142    case kS390_LoadWordU16:
143    case kS390_LoadWordS32:
144    case kS390_LoadWordU32:
145    case kS390_LoadWord64:
146    case kS390_LoadFloat32:
147    case kS390_LoadDouble:
148    case kS390_LoadReverse16:
149    case kS390_LoadReverse32:
150    case kS390_LoadReverse64:
151      return kIsLoadOperation;
152
153    case kS390_StoreWord8:
154    case kS390_StoreWord16:
155    case kS390_StoreWord32:
156    case kS390_StoreWord64:
157    case kS390_StoreReverse16:
158    case kS390_StoreReverse32:
159    case kS390_StoreReverse64:
160    case kS390_StoreFloat32:
161    case kS390_StoreDouble:
162    case kS390_Push:
163    case kS390_PushFrame:
164    case kS390_StoreToStackSlot:
165      return kHasSideEffect;
166
167#define CASE(Name) case k##Name:
168      COMMON_ARCH_OPCODE_LIST(CASE)
169#undef CASE
170      // Already covered in architecture independent code.
171      UNREACHABLE();
172  }
173
174  UNREACHABLE();
175  return kNoOpcodeFlags;
176}
177
178int InstructionScheduler::GetInstructionLatency(const Instruction* instr) {
179  // TODO(all): Add instruction cost modeling.
180  return 1;
181}
182
183}  // namespace compiler
184}  // namespace internal
185}  // namespace v8
186