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_And: 17 case kS390_AndComplement: 18 case kS390_Or: 19 case kS390_OrComplement: 20 case kS390_Xor: 21 case kS390_ShiftLeft32: 22 case kS390_ShiftLeft64: 23 case kS390_ShiftLeftPair: 24 case kS390_ShiftRight32: 25 case kS390_ShiftRight64: 26 case kS390_ShiftRightPair: 27 case kS390_ShiftRightArith32: 28 case kS390_ShiftRightArith64: 29 case kS390_ShiftRightArithPair: 30 case kS390_RotRight32: 31 case kS390_RotRight64: 32 case kS390_Not: 33 case kS390_RotLeftAndMask32: 34 case kS390_RotLeftAndClear64: 35 case kS390_RotLeftAndClearLeft64: 36 case kS390_RotLeftAndClearRight64: 37 case kS390_Add: 38 case kS390_AddWithOverflow32: 39 case kS390_AddPair: 40 case kS390_AddFloat: 41 case kS390_AddDouble: 42 case kS390_Sub: 43 case kS390_SubWithOverflow32: 44 case kS390_SubPair: 45 case kS390_MulPair: 46 case kS390_SubFloat: 47 case kS390_SubDouble: 48 case kS390_Mul32: 49 case kS390_Mul64: 50 case kS390_MulHigh32: 51 case kS390_MulHighU32: 52 case kS390_MulFloat: 53 case kS390_MulDouble: 54 case kS390_Div32: 55 case kS390_Div64: 56 case kS390_DivU32: 57 case kS390_DivU64: 58 case kS390_DivFloat: 59 case kS390_DivDouble: 60 case kS390_Mod32: 61 case kS390_Mod64: 62 case kS390_ModU32: 63 case kS390_ModU64: 64 case kS390_ModDouble: 65 case kS390_Neg: 66 case kS390_NegDouble: 67 case kS390_SqrtFloat: 68 case kS390_FloorFloat: 69 case kS390_CeilFloat: 70 case kS390_TruncateFloat: 71 case kS390_AbsFloat: 72 case kS390_SqrtDouble: 73 case kS390_FloorDouble: 74 case kS390_CeilDouble: 75 case kS390_TruncateDouble: 76 case kS390_RoundDouble: 77 case kS390_MaxDouble: 78 case kS390_MinDouble: 79 case kS390_AbsDouble: 80 case kS390_Cntlz32: 81 case kS390_Cntlz64: 82 case kS390_Popcnt32: 83 case kS390_Popcnt64: 84 case kS390_Cmp32: 85 case kS390_Cmp64: 86 case kS390_CmpFloat: 87 case kS390_CmpDouble: 88 case kS390_Tst32: 89 case kS390_Tst64: 90 case kS390_ExtendSignWord8: 91 case kS390_ExtendSignWord16: 92 case kS390_ExtendSignWord32: 93 case kS390_Uint32ToUint64: 94 case kS390_Int64ToInt32: 95 case kS390_Int64ToFloat32: 96 case kS390_Int64ToDouble: 97 case kS390_Uint64ToFloat32: 98 case kS390_Uint64ToDouble: 99 case kS390_Int32ToFloat32: 100 case kS390_Int32ToDouble: 101 case kS390_Uint32ToFloat32: 102 case kS390_Uint32ToDouble: 103 case kS390_Float32ToInt32: 104 case kS390_Float32ToUint32: 105 case kS390_Float32ToUint64: 106 case kS390_Float32ToDouble: 107 case kS390_Float64SilenceNaN: 108 case kS390_DoubleToInt32: 109 case kS390_DoubleToUint32: 110 case kS390_Float32ToInt64: 111 case kS390_DoubleToInt64: 112 case kS390_DoubleToUint64: 113 case kS390_DoubleToFloat32: 114 case kS390_DoubleExtractLowWord32: 115 case kS390_DoubleExtractHighWord32: 116 case kS390_DoubleInsertLowWord32: 117 case kS390_DoubleInsertHighWord32: 118 case kS390_DoubleConstruct: 119 case kS390_BitcastInt32ToFloat32: 120 case kS390_BitcastFloat32ToInt32: 121 case kS390_BitcastInt64ToDouble: 122 case kS390_BitcastDoubleToInt64: 123 return kNoOpcodeFlags; 124 125 case kS390_LoadWordS8: 126 case kS390_LoadWordU8: 127 case kS390_LoadWordS16: 128 case kS390_LoadWordU16: 129 case kS390_LoadWordS32: 130 case kS390_LoadWordU32: 131 case kS390_LoadWord64: 132 case kS390_LoadFloat32: 133 case kS390_LoadDouble: 134 return kIsLoadOperation; 135 136 case kS390_StoreWord8: 137 case kS390_StoreWord16: 138 case kS390_StoreWord32: 139 case kS390_StoreWord64: 140 case kS390_StoreFloat32: 141 case kS390_StoreDouble: 142 case kS390_Push: 143 case kS390_PushFrame: 144 case kS390_StoreToStackSlot: 145 return kHasSideEffect; 146 147#define CASE(Name) case k##Name: 148 COMMON_ARCH_OPCODE_LIST(CASE) 149#undef CASE 150 // Already covered in architecture independent code. 151 UNREACHABLE(); 152 } 153 154 UNREACHABLE(); 155 return kNoOpcodeFlags; 156} 157 158int InstructionScheduler::GetInstructionLatency(const Instruction* instr) { 159 // TODO(all): Add instruction cost modeling. 160 return 1; 161} 162 163} // namespace compiler 164} // namespace internal 165} // namespace v8 166