V8 API Reference, 7.2.502.16 (for Deno 0.2.4)
instruction-scheduler-s390.cc
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/backend/instruction-scheduler.h"
6 
7 namespace v8 {
8 namespace internal {
9 namespace compiler {
10 
11 bool InstructionScheduler::SchedulerSupported() { return true; }
12 
13 int InstructionScheduler::GetTargetInstructionFlags(
14  const Instruction* instr) const {
15  switch (instr->arch_opcode()) {
16  case kS390_Abs32:
17  case kS390_Abs64:
18  case kS390_And32:
19  case kS390_And64:
20  case kS390_Or32:
21  case kS390_Or64:
22  case kS390_Xor32:
23  case kS390_Xor64:
24  case kS390_ShiftLeft32:
25  case kS390_ShiftLeft64:
26  case kS390_ShiftLeftPair:
27  case kS390_ShiftRight32:
28  case kS390_ShiftRight64:
29  case kS390_ShiftRightPair:
30  case kS390_ShiftRightArith32:
31  case kS390_ShiftRightArith64:
32  case kS390_ShiftRightArithPair:
33  case kS390_RotRight32:
34  case kS390_RotRight64:
35  case kS390_Not32:
36  case kS390_Not64:
37  case kS390_RotLeftAndClear64:
38  case kS390_RotLeftAndClearLeft64:
39  case kS390_RotLeftAndClearRight64:
40  case kS390_Lay:
41  case kS390_Add32:
42  case kS390_Add64:
43  case kS390_AddPair:
44  case kS390_AddFloat:
45  case kS390_AddDouble:
46  case kS390_Sub32:
47  case kS390_Sub64:
48  case kS390_SubPair:
49  case kS390_MulPair:
50  case kS390_SubFloat:
51  case kS390_SubDouble:
52  case kS390_Mul32:
53  case kS390_Mul32WithOverflow:
54  case kS390_Mul64:
55  case kS390_MulHigh32:
56  case kS390_MulHighU32:
57  case kS390_MulFloat:
58  case kS390_MulDouble:
59  case kS390_Div32:
60  case kS390_Div64:
61  case kS390_DivU32:
62  case kS390_DivU64:
63  case kS390_DivFloat:
64  case kS390_DivDouble:
65  case kS390_Mod32:
66  case kS390_Mod64:
67  case kS390_ModU32:
68  case kS390_ModU64:
69  case kS390_ModDouble:
70  case kS390_Neg32:
71  case kS390_Neg64:
72  case kS390_NegDouble:
73  case kS390_NegFloat:
74  case kS390_SqrtFloat:
75  case kS390_FloorFloat:
76  case kS390_CeilFloat:
77  case kS390_TruncateFloat:
78  case kS390_AbsFloat:
79  case kS390_SqrtDouble:
80  case kS390_FloorDouble:
81  case kS390_CeilDouble:
82  case kS390_TruncateDouble:
83  case kS390_RoundDouble:
84  case kS390_MaxFloat:
85  case kS390_MaxDouble:
86  case kS390_MinFloat:
87  case kS390_MinDouble:
88  case kS390_AbsDouble:
89  case kS390_Cntlz32:
90  case kS390_Cntlz64:
91  case kS390_Popcnt32:
92  case kS390_Popcnt64:
93  case kS390_Cmp32:
94  case kS390_Cmp64:
95  case kS390_CmpFloat:
96  case kS390_CmpDouble:
97  case kS390_Tst32:
98  case kS390_Tst64:
99  case kS390_SignExtendWord8ToInt32:
100  case kS390_SignExtendWord16ToInt32:
101  case kS390_SignExtendWord8ToInt64:
102  case kS390_SignExtendWord16ToInt64:
103  case kS390_SignExtendWord32ToInt64:
104  case kS390_Uint32ToUint64:
105  case kS390_Int64ToInt32:
106  case kS390_Int64ToFloat32:
107  case kS390_Int64ToDouble:
108  case kS390_Uint64ToFloat32:
109  case kS390_Uint64ToDouble:
110  case kS390_Int32ToFloat32:
111  case kS390_Int32ToDouble:
112  case kS390_Uint32ToFloat32:
113  case kS390_Uint32ToDouble:
114  case kS390_Float32ToInt32:
115  case kS390_Float32ToUint32:
116  case kS390_Float32ToUint64:
117  case kS390_Float32ToDouble:
118  case kS390_Float64SilenceNaN:
119  case kS390_DoubleToInt32:
120  case kS390_DoubleToUint32:
121  case kS390_Float32ToInt64:
122  case kS390_DoubleToInt64:
123  case kS390_DoubleToUint64:
124  case kS390_DoubleToFloat32:
125  case kS390_DoubleExtractLowWord32:
126  case kS390_DoubleExtractHighWord32:
127  case kS390_DoubleInsertLowWord32:
128  case kS390_DoubleInsertHighWord32:
129  case kS390_DoubleConstruct:
130  case kS390_BitcastInt32ToFloat32:
131  case kS390_BitcastFloat32ToInt32:
132  case kS390_BitcastInt64ToDouble:
133  case kS390_BitcastDoubleToInt64:
134  case kS390_LoadReverse16RR:
135  case kS390_LoadReverse32RR:
136  case kS390_LoadReverse64RR:
137  case kS390_LoadAndTestWord32:
138  case kS390_LoadAndTestWord64:
139  case kS390_LoadAndTestFloat32:
140  case kS390_LoadAndTestFloat64:
141  return kNoOpcodeFlags;
142 
143  case kS390_LoadWordS8:
144  case kS390_LoadWordU8:
145  case kS390_LoadWordS16:
146  case kS390_LoadWordU16:
147  case kS390_LoadWordS32:
148  case kS390_LoadWordU32:
149  case kS390_LoadWord64:
150  case kS390_LoadFloat32:
151  case kS390_LoadDouble:
152  case kS390_LoadReverse16:
153  case kS390_LoadReverse32:
154  case kS390_LoadReverse64:
155  return kIsLoadOperation;
156 
157  case kS390_StoreWord8:
158  case kS390_StoreWord16:
159  case kS390_StoreWord32:
160  case kS390_StoreWord64:
161  case kS390_StoreReverse16:
162  case kS390_StoreReverse32:
163  case kS390_StoreReverse64:
164  case kS390_StoreFloat32:
165  case kS390_StoreDouble:
166  case kS390_Push:
167  case kS390_PushFrame:
168  case kS390_StoreToStackSlot:
169  case kS390_StackClaim:
170  return kHasSideEffect;
171 
172  case kS390_Word64AtomicExchangeUint8:
173  case kS390_Word64AtomicExchangeUint16:
174  case kS390_Word64AtomicExchangeUint32:
175  case kS390_Word64AtomicExchangeUint64:
176  case kS390_Word64AtomicCompareExchangeUint8:
177  case kS390_Word64AtomicCompareExchangeUint16:
178  case kS390_Word64AtomicCompareExchangeUint32:
179  case kS390_Word64AtomicCompareExchangeUint64:
180  case kS390_Word64AtomicAddUint8:
181  case kS390_Word64AtomicAddUint16:
182  case kS390_Word64AtomicAddUint32:
183  case kS390_Word64AtomicAddUint64:
184  case kS390_Word64AtomicSubUint8:
185  case kS390_Word64AtomicSubUint16:
186  case kS390_Word64AtomicSubUint32:
187  case kS390_Word64AtomicSubUint64:
188  case kS390_Word64AtomicAndUint8:
189  case kS390_Word64AtomicAndUint16:
190  case kS390_Word64AtomicAndUint32:
191  case kS390_Word64AtomicAndUint64:
192  case kS390_Word64AtomicOrUint8:
193  case kS390_Word64AtomicOrUint16:
194  case kS390_Word64AtomicOrUint32:
195  case kS390_Word64AtomicOrUint64:
196  case kS390_Word64AtomicXorUint8:
197  case kS390_Word64AtomicXorUint16:
198  case kS390_Word64AtomicXorUint32:
199  case kS390_Word64AtomicXorUint64:
200  return kHasSideEffect;
201 
202 #define CASE(Name) case k##Name:
203  COMMON_ARCH_OPCODE_LIST(CASE)
204 #undef CASE
205  // Already covered in architecture independent code.
206  UNREACHABLE();
207  }
208 
209  UNREACHABLE();
210 }
211 
212 int InstructionScheduler::GetInstructionLatency(const Instruction* instr) {
213  // TODO(all): Add instruction cost modeling.
214  return 1;
215 }
216 
217 } // namespace compiler
218 } // namespace internal
219 } // namespace v8
v8
Definition: libplatform.h:13