1 //===-- LegalizeTypes.h - DAG Type Legalizer class definition ---*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file defines the DAGTypeLegalizer class. This is a private interface 10 // shared between the code that implements the SelectionDAG::LegalizeTypes 11 // method. 12 // 13 //===----------------------------------------------------------------------===// 14 15 #ifndef LLVM_LIB_CODEGEN_SELECTIONDAG_LEGALIZETYPES_H 16 #define LLVM_LIB_CODEGEN_SELECTIONDAG_LEGALIZETYPES_H 17 18 #include "llvm/ADT/DenseMap.h" 19 #include "llvm/CodeGen/SelectionDAG.h" 20 #include "llvm/CodeGen/TargetLowering.h" 21 #include "llvm/Support/Compiler.h" 22 23 namespace llvm { 24 25 //===----------------------------------------------------------------------===// 26 /// This takes an arbitrary SelectionDAG as input and hacks on it until only 27 /// value types the target machine can handle are left. This involves promoting 28 /// small sizes to large sizes or splitting up large values into small values. 29 /// 30 class LLVM_LIBRARY_VISIBILITY DAGTypeLegalizer { 31 const TargetLowering &TLI; 32 SelectionDAG &DAG; 33 public: 34 /// This pass uses the NodeId on the SDNodes to hold information about the 35 /// state of the node. The enum has all the values. 36 enum NodeIdFlags { 37 /// All operands have been processed, so this node is ready to be handled. 38 ReadyToProcess = 0, 39 40 /// This is a new node, not before seen, that was created in the process of 41 /// legalizing some other node. 42 NewNode = -1, 43 44 /// This node's ID needs to be set to the number of its unprocessed 45 /// operands. 46 Unanalyzed = -2, 47 48 /// This is a node that has already been processed. 49 Processed = -3 50 51 // 1+ - This is a node which has this many unprocessed operands. 52 }; 53 private: 54 55 /// This is a bitvector that contains two bits for each simple value type, 56 /// where the two bits correspond to the LegalizeAction enum from 57 /// TargetLowering. This can be queried with "getTypeAction(VT)". 58 TargetLowering::ValueTypeActionImpl ValueTypeActions; 59 60 /// Return how we should legalize values of this type. getTypeAction(EVT VT)61 TargetLowering::LegalizeTypeAction getTypeAction(EVT VT) const { 62 return TLI.getTypeAction(*DAG.getContext(), VT); 63 } 64 65 /// Return true if this type is legal on this target. isTypeLegal(EVT VT)66 bool isTypeLegal(EVT VT) const { 67 return TLI.getTypeAction(*DAG.getContext(), VT) == TargetLowering::TypeLegal; 68 } 69 70 /// Return true if this is a simple legal type. isSimpleLegalType(EVT VT)71 bool isSimpleLegalType(EVT VT) const { 72 return VT.isSimple() && TLI.isTypeLegal(VT); 73 } 74 getSetCCResultType(EVT VT)75 EVT getSetCCResultType(EVT VT) const { 76 return TLI.getSetCCResultType(DAG.getDataLayout(), *DAG.getContext(), VT); 77 } 78 79 /// Pretend all of this node's results are legal. IgnoreNodeResults(SDNode * N)80 bool IgnoreNodeResults(SDNode *N) const { 81 return N->getOpcode() == ISD::TargetConstant || 82 N->getOpcode() == ISD::Register; 83 } 84 85 // Bijection from SDValue to unique id. As each created node gets a 86 // new id we do not need to worry about reuse expunging. Should we 87 // run out of ids, we can do a one time expensive compactifcation. 88 typedef unsigned TableId; 89 90 TableId NextValueId = 1; 91 92 SmallDenseMap<SDValue, TableId, 8> ValueToIdMap; 93 SmallDenseMap<TableId, SDValue, 8> IdToValueMap; 94 95 /// For integer nodes that are below legal width, this map indicates what 96 /// promoted value to use. 97 SmallDenseMap<TableId, TableId, 8> PromotedIntegers; 98 99 /// For integer nodes that need to be expanded this map indicates which 100 /// operands are the expanded version of the input. 101 SmallDenseMap<TableId, std::pair<TableId, TableId>, 8> ExpandedIntegers; 102 103 /// For floating-point nodes converted to integers of the same size, this map 104 /// indicates the converted value to use. 105 SmallDenseMap<TableId, TableId, 8> SoftenedFloats; 106 107 /// For floating-point nodes that have a smaller precision than the smallest 108 /// supported precision, this map indicates what promoted value to use. 109 SmallDenseMap<TableId, TableId, 8> PromotedFloats; 110 111 /// For floating-point nodes that have a smaller precision than the smallest 112 /// supported precision, this map indicates the converted value to use. 113 SmallDenseMap<TableId, TableId, 8> SoftPromotedHalfs; 114 115 /// For float nodes that need to be expanded this map indicates which operands 116 /// are the expanded version of the input. 117 SmallDenseMap<TableId, std::pair<TableId, TableId>, 8> ExpandedFloats; 118 119 /// For nodes that are <1 x ty>, this map indicates the scalar value of type 120 /// 'ty' to use. 121 SmallDenseMap<TableId, TableId, 8> ScalarizedVectors; 122 123 /// For nodes that need to be split this map indicates which operands are the 124 /// expanded version of the input. 125 SmallDenseMap<TableId, std::pair<TableId, TableId>, 8> SplitVectors; 126 127 /// For vector nodes that need to be widened, indicates the widened value to 128 /// use. 129 SmallDenseMap<TableId, TableId, 8> WidenedVectors; 130 131 /// For values that have been replaced with another, indicates the replacement 132 /// value to use. 133 SmallDenseMap<TableId, TableId, 8> ReplacedValues; 134 135 /// This defines a worklist of nodes to process. In order to be pushed onto 136 /// this worklist, all operands of a node must have already been processed. 137 SmallVector<SDNode*, 128> Worklist; 138 getTableId(SDValue V)139 TableId getTableId(SDValue V) { 140 assert(V.getNode() && "Getting TableId on SDValue()"); 141 142 auto I = ValueToIdMap.find(V); 143 if (I != ValueToIdMap.end()) { 144 // replace if there's been a shift. 145 RemapId(I->second); 146 assert(I->second && "All Ids should be nonzero"); 147 return I->second; 148 } 149 // Add if it's not there. 150 ValueToIdMap.insert(std::make_pair(V, NextValueId)); 151 IdToValueMap.insert(std::make_pair(NextValueId, V)); 152 ++NextValueId; 153 assert(NextValueId != 0 && 154 "Ran out of Ids. Increase id type size or add compactification"); 155 return NextValueId - 1; 156 } 157 getSDValue(TableId & Id)158 const SDValue &getSDValue(TableId &Id) { 159 RemapId(Id); 160 assert(Id && "TableId should be non-zero"); 161 auto I = IdToValueMap.find(Id); 162 assert(I != IdToValueMap.end() && "cannot find Id in map"); 163 return I->second; 164 } 165 166 public: DAGTypeLegalizer(SelectionDAG & dag)167 explicit DAGTypeLegalizer(SelectionDAG &dag) 168 : TLI(dag.getTargetLoweringInfo()), DAG(dag), 169 ValueTypeActions(TLI.getValueTypeActions()) { 170 static_assert(MVT::LAST_VALUETYPE <= MVT::MAX_ALLOWED_VALUETYPE, 171 "Too many value types for ValueTypeActions to hold!"); 172 } 173 174 /// This is the main entry point for the type legalizer. This does a 175 /// top-down traversal of the dag, legalizing types as it goes. Returns 176 /// "true" if it made any changes. 177 bool run(); 178 NoteDeletion(SDNode * Old,SDNode * New)179 void NoteDeletion(SDNode *Old, SDNode *New) { 180 assert(Old != New && "node replaced with self"); 181 for (unsigned i = 0, e = Old->getNumValues(); i != e; ++i) { 182 TableId NewId = getTableId(SDValue(New, i)); 183 TableId OldId = getTableId(SDValue(Old, i)); 184 185 if (OldId != NewId) { 186 ReplacedValues[OldId] = NewId; 187 188 // Delete Node from tables. We cannot do this when OldId == NewId, 189 // because NewId can still have table references to it in 190 // ReplacedValues. 191 IdToValueMap.erase(OldId); 192 PromotedIntegers.erase(OldId); 193 ExpandedIntegers.erase(OldId); 194 SoftenedFloats.erase(OldId); 195 PromotedFloats.erase(OldId); 196 SoftPromotedHalfs.erase(OldId); 197 ExpandedFloats.erase(OldId); 198 ScalarizedVectors.erase(OldId); 199 SplitVectors.erase(OldId); 200 WidenedVectors.erase(OldId); 201 } 202 203 ValueToIdMap.erase(SDValue(Old, i)); 204 } 205 } 206 getDAG()207 SelectionDAG &getDAG() const { return DAG; } 208 209 private: 210 SDNode *AnalyzeNewNode(SDNode *N); 211 void AnalyzeNewValue(SDValue &Val); 212 void PerformExpensiveChecks(); 213 void RemapId(TableId &Id); 214 void RemapValue(SDValue &V); 215 216 // Common routines. 217 SDValue BitConvertToInteger(SDValue Op); 218 SDValue BitConvertVectorToIntegerVector(SDValue Op); 219 SDValue CreateStackStoreLoad(SDValue Op, EVT DestVT); 220 bool CustomLowerNode(SDNode *N, EVT VT, bool LegalizeResult); 221 bool CustomWidenLowerNode(SDNode *N, EVT VT); 222 223 /// Replace each result of the given MERGE_VALUES node with the corresponding 224 /// input operand, except for the result 'ResNo', for which the corresponding 225 /// input operand is returned. 226 SDValue DisintegrateMERGE_VALUES(SDNode *N, unsigned ResNo); 227 228 SDValue JoinIntegers(SDValue Lo, SDValue Hi); 229 230 std::pair<SDValue, SDValue> ExpandAtomic(SDNode *Node); 231 232 SDValue PromoteTargetBoolean(SDValue Bool, EVT ValVT); 233 234 void ReplaceValueWith(SDValue From, SDValue To); 235 void SplitInteger(SDValue Op, SDValue &Lo, SDValue &Hi); 236 void SplitInteger(SDValue Op, EVT LoVT, EVT HiVT, 237 SDValue &Lo, SDValue &Hi); 238 239 //===--------------------------------------------------------------------===// 240 // Integer Promotion Support: LegalizeIntegerTypes.cpp 241 //===--------------------------------------------------------------------===// 242 243 /// Given a processed operand Op which was promoted to a larger integer type, 244 /// this returns the promoted value. The low bits of the promoted value 245 /// corresponding to the original type are exactly equal to Op. 246 /// The extra bits contain rubbish, so the promoted value may need to be zero- 247 /// or sign-extended from the original type before it is usable (the helpers 248 /// SExtPromotedInteger and ZExtPromotedInteger can do this for you). 249 /// For example, if Op is an i16 and was promoted to an i32, then this method 250 /// returns an i32, the lower 16 bits of which coincide with Op, and the upper 251 /// 16 bits of which contain rubbish. GetPromotedInteger(SDValue Op)252 SDValue GetPromotedInteger(SDValue Op) { 253 TableId &PromotedId = PromotedIntegers[getTableId(Op)]; 254 SDValue PromotedOp = getSDValue(PromotedId); 255 assert(PromotedOp.getNode() && "Operand wasn't promoted?"); 256 return PromotedOp; 257 } 258 void SetPromotedInteger(SDValue Op, SDValue Result); 259 260 /// Get a promoted operand and sign extend it to the final size. SExtPromotedInteger(SDValue Op)261 SDValue SExtPromotedInteger(SDValue Op) { 262 EVT OldVT = Op.getValueType(); 263 SDLoc dl(Op); 264 Op = GetPromotedInteger(Op); 265 return DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Op.getValueType(), Op, 266 DAG.getValueType(OldVT)); 267 } 268 269 /// Get a promoted operand and zero extend it to the final size. ZExtPromotedInteger(SDValue Op)270 SDValue ZExtPromotedInteger(SDValue Op) { 271 EVT OldVT = Op.getValueType(); 272 SDLoc dl(Op); 273 Op = GetPromotedInteger(Op); 274 return DAG.getZeroExtendInReg(Op, dl, OldVT); 275 } 276 277 // Get a promoted operand and sign or zero extend it to the final size 278 // (depending on TargetLoweringInfo::isSExtCheaperThanZExt). For a given 279 // subtarget and type, the choice of sign or zero-extension will be 280 // consistent. SExtOrZExtPromotedInteger(SDValue Op)281 SDValue SExtOrZExtPromotedInteger(SDValue Op) { 282 EVT OldVT = Op.getValueType(); 283 SDLoc DL(Op); 284 Op = GetPromotedInteger(Op); 285 if (TLI.isSExtCheaperThanZExt(OldVT, Op.getValueType())) 286 return DAG.getNode(ISD::SIGN_EXTEND_INREG, DL, Op.getValueType(), Op, 287 DAG.getValueType(OldVT)); 288 return DAG.getZeroExtendInReg(Op, DL, OldVT); 289 } 290 291 // Promote the given operand V (vector or scalar) according to N's specific 292 // reduction kind. N must be an integer VECREDUCE_* or VP_REDUCE_*. Returns 293 // the nominal extension opcode (ISD::(ANY|ZERO|SIGN)_EXTEND) and the 294 // promoted value. 295 SDValue PromoteIntOpVectorReduction(SDNode *N, SDValue V); 296 297 // Integer Result Promotion. 298 void PromoteIntegerResult(SDNode *N, unsigned ResNo); 299 SDValue PromoteIntRes_MERGE_VALUES(SDNode *N, unsigned ResNo); 300 SDValue PromoteIntRes_AssertSext(SDNode *N); 301 SDValue PromoteIntRes_AssertZext(SDNode *N); 302 SDValue PromoteIntRes_Atomic0(AtomicSDNode *N); 303 SDValue PromoteIntRes_Atomic1(AtomicSDNode *N); 304 SDValue PromoteIntRes_AtomicCmpSwap(AtomicSDNode *N, unsigned ResNo); 305 SDValue PromoteIntRes_EXTRACT_SUBVECTOR(SDNode *N); 306 SDValue PromoteIntRes_INSERT_SUBVECTOR(SDNode *N); 307 SDValue PromoteIntRes_VECTOR_REVERSE(SDNode *N); 308 SDValue PromoteIntRes_VECTOR_SHUFFLE(SDNode *N); 309 SDValue PromoteIntRes_VECTOR_SPLICE(SDNode *N); 310 SDValue PromoteIntRes_VECTOR_INTERLEAVE_DEINTERLEAVE(SDNode *N); 311 SDValue PromoteIntRes_BUILD_VECTOR(SDNode *N); 312 SDValue PromoteIntRes_ScalarOp(SDNode *N); 313 SDValue PromoteIntRes_STEP_VECTOR(SDNode *N); 314 SDValue PromoteIntRes_EXTEND_VECTOR_INREG(SDNode *N); 315 SDValue PromoteIntRes_INSERT_VECTOR_ELT(SDNode *N); 316 SDValue PromoteIntRes_CONCAT_VECTORS(SDNode *N); 317 SDValue PromoteIntRes_BITCAST(SDNode *N); 318 SDValue PromoteIntRes_BSWAP(SDNode *N); 319 SDValue PromoteIntRes_BITREVERSE(SDNode *N); 320 SDValue PromoteIntRes_BUILD_PAIR(SDNode *N); 321 SDValue PromoteIntRes_Constant(SDNode *N); 322 SDValue PromoteIntRes_CTLZ(SDNode *N); 323 SDValue PromoteIntRes_CTPOP_PARITY(SDNode *N); 324 SDValue PromoteIntRes_CTTZ(SDNode *N); 325 SDValue PromoteIntRes_EXTRACT_VECTOR_ELT(SDNode *N); 326 SDValue PromoteIntRes_FP_TO_XINT(SDNode *N); 327 SDValue PromoteIntRes_FP_TO_XINT_SAT(SDNode *N); 328 SDValue PromoteIntRes_FP_TO_FP16_BF16(SDNode *N); 329 SDValue PromoteIntRes_STRICT_FP_TO_FP16_BF16(SDNode *N); 330 SDValue PromoteIntRes_XRINT(SDNode *N); 331 SDValue PromoteIntRes_FREEZE(SDNode *N); 332 SDValue PromoteIntRes_INT_EXTEND(SDNode *N); 333 SDValue PromoteIntRes_LOAD(LoadSDNode *N); 334 SDValue PromoteIntRes_MLOAD(MaskedLoadSDNode *N); 335 SDValue PromoteIntRes_MGATHER(MaskedGatherSDNode *N); 336 SDValue PromoteIntRes_Overflow(SDNode *N); 337 SDValue PromoteIntRes_FFREXP(SDNode *N); 338 SDValue PromoteIntRes_SADDSUBO(SDNode *N, unsigned ResNo); 339 SDValue PromoteIntRes_Select(SDNode *N); 340 SDValue PromoteIntRes_SELECT_CC(SDNode *N); 341 SDValue PromoteIntRes_SETCC(SDNode *N); 342 SDValue PromoteIntRes_SHL(SDNode *N); 343 SDValue PromoteIntRes_SimpleIntBinOp(SDNode *N); 344 SDValue PromoteIntRes_ZExtIntBinOp(SDNode *N); 345 SDValue PromoteIntRes_SExtIntBinOp(SDNode *N); 346 SDValue PromoteIntRes_UMINUMAX(SDNode *N); 347 SDValue PromoteIntRes_SIGN_EXTEND_INREG(SDNode *N); 348 SDValue PromoteIntRes_SRA(SDNode *N); 349 SDValue PromoteIntRes_SRL(SDNode *N); 350 SDValue PromoteIntRes_TRUNCATE(SDNode *N); 351 SDValue PromoteIntRes_UADDSUBO(SDNode *N, unsigned ResNo); 352 SDValue PromoteIntRes_UADDSUBO_CARRY(SDNode *N, unsigned ResNo); 353 SDValue PromoteIntRes_SADDSUBO_CARRY(SDNode *N, unsigned ResNo); 354 SDValue PromoteIntRes_UNDEF(SDNode *N); 355 SDValue PromoteIntRes_VAARG(SDNode *N); 356 SDValue PromoteIntRes_VSCALE(SDNode *N); 357 SDValue PromoteIntRes_XMULO(SDNode *N, unsigned ResNo); 358 SDValue PromoteIntRes_ADDSUBSHLSAT(SDNode *N); 359 SDValue PromoteIntRes_MULFIX(SDNode *N); 360 SDValue PromoteIntRes_DIVFIX(SDNode *N); 361 SDValue PromoteIntRes_GET_ROUNDING(SDNode *N); 362 SDValue PromoteIntRes_VECREDUCE(SDNode *N); 363 SDValue PromoteIntRes_VP_REDUCE(SDNode *N); 364 SDValue PromoteIntRes_ABS(SDNode *N); 365 SDValue PromoteIntRes_Rotate(SDNode *N); 366 SDValue PromoteIntRes_FunnelShift(SDNode *N); 367 SDValue PromoteIntRes_VPFunnelShift(SDNode *N); 368 SDValue PromoteIntRes_IS_FPCLASS(SDNode *N); 369 370 // Integer Operand Promotion. 371 bool PromoteIntegerOperand(SDNode *N, unsigned OpNo); 372 SDValue PromoteIntOp_ANY_EXTEND(SDNode *N); 373 SDValue PromoteIntOp_ATOMIC_STORE(AtomicSDNode *N); 374 SDValue PromoteIntOp_BITCAST(SDNode *N); 375 SDValue PromoteIntOp_BUILD_PAIR(SDNode *N); 376 SDValue PromoteIntOp_BR_CC(SDNode *N, unsigned OpNo); 377 SDValue PromoteIntOp_BRCOND(SDNode *N, unsigned OpNo); 378 SDValue PromoteIntOp_BUILD_VECTOR(SDNode *N); 379 SDValue PromoteIntOp_INSERT_VECTOR_ELT(SDNode *N, unsigned OpNo); 380 SDValue PromoteIntOp_EXTRACT_VECTOR_ELT(SDNode *N); 381 SDValue PromoteIntOp_EXTRACT_SUBVECTOR(SDNode *N); 382 SDValue PromoteIntOp_INSERT_SUBVECTOR(SDNode *N); 383 SDValue PromoteIntOp_CONCAT_VECTORS(SDNode *N); 384 SDValue PromoteIntOp_ScalarOp(SDNode *N); 385 SDValue PromoteIntOp_SELECT(SDNode *N, unsigned OpNo); 386 SDValue PromoteIntOp_SELECT_CC(SDNode *N, unsigned OpNo); 387 SDValue PromoteIntOp_SETCC(SDNode *N, unsigned OpNo); 388 SDValue PromoteIntOp_Shift(SDNode *N); 389 SDValue PromoteIntOp_FunnelShift(SDNode *N); 390 SDValue PromoteIntOp_SIGN_EXTEND(SDNode *N); 391 SDValue PromoteIntOp_VP_SIGN_EXTEND(SDNode *N); 392 SDValue PromoteIntOp_SINT_TO_FP(SDNode *N); 393 SDValue PromoteIntOp_STRICT_SINT_TO_FP(SDNode *N); 394 SDValue PromoteIntOp_STORE(StoreSDNode *N, unsigned OpNo); 395 SDValue PromoteIntOp_TRUNCATE(SDNode *N); 396 SDValue PromoteIntOp_UINT_TO_FP(SDNode *N); 397 SDValue PromoteIntOp_STRICT_UINT_TO_FP(SDNode *N); 398 SDValue PromoteIntOp_ZERO_EXTEND(SDNode *N); 399 SDValue PromoteIntOp_VP_ZERO_EXTEND(SDNode *N); 400 SDValue PromoteIntOp_MSTORE(MaskedStoreSDNode *N, unsigned OpNo); 401 SDValue PromoteIntOp_MLOAD(MaskedLoadSDNode *N, unsigned OpNo); 402 SDValue PromoteIntOp_MSCATTER(MaskedScatterSDNode *N, unsigned OpNo); 403 SDValue PromoteIntOp_MGATHER(MaskedGatherSDNode *N, unsigned OpNo); 404 SDValue PromoteIntOp_ADDSUBO_CARRY(SDNode *N, unsigned OpNo); 405 SDValue PromoteIntOp_FRAMERETURNADDR(SDNode *N); 406 SDValue PromoteIntOp_FIX(SDNode *N); 407 SDValue PromoteIntOp_ExpOp(SDNode *N); 408 SDValue PromoteIntOp_VECREDUCE(SDNode *N); 409 SDValue PromoteIntOp_VP_REDUCE(SDNode *N, unsigned OpNo); 410 SDValue PromoteIntOp_SET_ROUNDING(SDNode *N); 411 SDValue PromoteIntOp_STACKMAP(SDNode *N, unsigned OpNo); 412 SDValue PromoteIntOp_PATCHPOINT(SDNode *N, unsigned OpNo); 413 SDValue PromoteIntOp_VP_STRIDED(SDNode *N, unsigned OpNo); 414 SDValue PromoteIntOp_VP_SPLICE(SDNode *N, unsigned OpNo); 415 416 void PromoteSetCCOperands(SDValue &LHS,SDValue &RHS, ISD::CondCode Code); 417 418 //===--------------------------------------------------------------------===// 419 // Integer Expansion Support: LegalizeIntegerTypes.cpp 420 //===--------------------------------------------------------------------===// 421 422 /// Given a processed operand Op which was expanded into two integers of half 423 /// the size, this returns the two halves. The low bits of Op are exactly 424 /// equal to the bits of Lo; the high bits exactly equal Hi. 425 /// For example, if Op is an i64 which was expanded into two i32's, then this 426 /// method returns the two i32's, with Lo being equal to the lower 32 bits of 427 /// Op, and Hi being equal to the upper 32 bits. 428 void GetExpandedInteger(SDValue Op, SDValue &Lo, SDValue &Hi); 429 void SetExpandedInteger(SDValue Op, SDValue Lo, SDValue Hi); 430 431 // Integer Result Expansion. 432 void ExpandIntegerResult(SDNode *N, unsigned ResNo); 433 void ExpandIntRes_ANY_EXTEND (SDNode *N, SDValue &Lo, SDValue &Hi); 434 void ExpandIntRes_AssertSext (SDNode *N, SDValue &Lo, SDValue &Hi); 435 void ExpandIntRes_AssertZext (SDNode *N, SDValue &Lo, SDValue &Hi); 436 void ExpandIntRes_Constant (SDNode *N, SDValue &Lo, SDValue &Hi); 437 void ExpandIntRes_ABS (SDNode *N, SDValue &Lo, SDValue &Hi); 438 void ExpandIntRes_CTLZ (SDNode *N, SDValue &Lo, SDValue &Hi); 439 void ExpandIntRes_CTPOP (SDNode *N, SDValue &Lo, SDValue &Hi); 440 void ExpandIntRes_CTTZ (SDNode *N, SDValue &Lo, SDValue &Hi); 441 void ExpandIntRes_LOAD (LoadSDNode *N, SDValue &Lo, SDValue &Hi); 442 void ExpandIntRes_READCYCLECOUNTER (SDNode *N, SDValue &Lo, SDValue &Hi); 443 void ExpandIntRes_SIGN_EXTEND (SDNode *N, SDValue &Lo, SDValue &Hi); 444 void ExpandIntRes_SIGN_EXTEND_INREG (SDNode *N, SDValue &Lo, SDValue &Hi); 445 void ExpandIntRes_TRUNCATE (SDNode *N, SDValue &Lo, SDValue &Hi); 446 void ExpandIntRes_ZERO_EXTEND (SDNode *N, SDValue &Lo, SDValue &Hi); 447 void ExpandIntRes_GET_ROUNDING (SDNode *N, SDValue &Lo, SDValue &Hi); 448 void ExpandIntRes_FP_TO_XINT (SDNode *N, SDValue &Lo, SDValue &Hi); 449 void ExpandIntRes_FP_TO_XINT_SAT (SDNode *N, SDValue &Lo, SDValue &Hi); 450 void ExpandIntRes_XROUND_XRINT (SDNode *N, SDValue &Lo, SDValue &Hi); 451 452 void ExpandIntRes_Logical (SDNode *N, SDValue &Lo, SDValue &Hi); 453 void ExpandIntRes_ADDSUB (SDNode *N, SDValue &Lo, SDValue &Hi); 454 void ExpandIntRes_ADDSUBC (SDNode *N, SDValue &Lo, SDValue &Hi); 455 void ExpandIntRes_ADDSUBE (SDNode *N, SDValue &Lo, SDValue &Hi); 456 void ExpandIntRes_UADDSUBO_CARRY (SDNode *N, SDValue &Lo, SDValue &Hi); 457 void ExpandIntRes_SADDSUBO_CARRY (SDNode *N, SDValue &Lo, SDValue &Hi); 458 void ExpandIntRes_BITREVERSE (SDNode *N, SDValue &Lo, SDValue &Hi); 459 void ExpandIntRes_BSWAP (SDNode *N, SDValue &Lo, SDValue &Hi); 460 void ExpandIntRes_PARITY (SDNode *N, SDValue &Lo, SDValue &Hi); 461 void ExpandIntRes_MUL (SDNode *N, SDValue &Lo, SDValue &Hi); 462 void ExpandIntRes_SDIV (SDNode *N, SDValue &Lo, SDValue &Hi); 463 void ExpandIntRes_SREM (SDNode *N, SDValue &Lo, SDValue &Hi); 464 void ExpandIntRes_UDIV (SDNode *N, SDValue &Lo, SDValue &Hi); 465 void ExpandIntRes_UREM (SDNode *N, SDValue &Lo, SDValue &Hi); 466 void ExpandIntRes_ShiftThroughStack (SDNode *N, SDValue &Lo, SDValue &Hi); 467 void ExpandIntRes_Shift (SDNode *N, SDValue &Lo, SDValue &Hi); 468 469 void ExpandIntRes_MINMAX (SDNode *N, SDValue &Lo, SDValue &Hi); 470 471 void ExpandIntRes_SADDSUBO (SDNode *N, SDValue &Lo, SDValue &Hi); 472 void ExpandIntRes_UADDSUBO (SDNode *N, SDValue &Lo, SDValue &Hi); 473 void ExpandIntRes_XMULO (SDNode *N, SDValue &Lo, SDValue &Hi); 474 void ExpandIntRes_ADDSUBSAT (SDNode *N, SDValue &Lo, SDValue &Hi); 475 void ExpandIntRes_SHLSAT (SDNode *N, SDValue &Lo, SDValue &Hi); 476 void ExpandIntRes_MULFIX (SDNode *N, SDValue &Lo, SDValue &Hi); 477 void ExpandIntRes_DIVFIX (SDNode *N, SDValue &Lo, SDValue &Hi); 478 479 void ExpandIntRes_ATOMIC_LOAD (SDNode *N, SDValue &Lo, SDValue &Hi); 480 void ExpandIntRes_VECREDUCE (SDNode *N, SDValue &Lo, SDValue &Hi); 481 482 void ExpandIntRes_Rotate (SDNode *N, SDValue &Lo, SDValue &Hi); 483 void ExpandIntRes_FunnelShift (SDNode *N, SDValue &Lo, SDValue &Hi); 484 485 void ExpandIntRes_VSCALE (SDNode *N, SDValue &Lo, SDValue &Hi); 486 487 void ExpandShiftByConstant(SDNode *N, const APInt &Amt, 488 SDValue &Lo, SDValue &Hi); 489 bool ExpandShiftWithKnownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi); 490 bool ExpandShiftWithUnknownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi); 491 492 // Integer Operand Expansion. 493 bool ExpandIntegerOperand(SDNode *N, unsigned OpNo); 494 SDValue ExpandIntOp_BR_CC(SDNode *N); 495 SDValue ExpandIntOp_SELECT_CC(SDNode *N); 496 SDValue ExpandIntOp_SETCC(SDNode *N); 497 SDValue ExpandIntOp_SETCCCARRY(SDNode *N); 498 SDValue ExpandIntOp_Shift(SDNode *N); 499 SDValue ExpandIntOp_STORE(StoreSDNode *N, unsigned OpNo); 500 SDValue ExpandIntOp_TRUNCATE(SDNode *N); 501 SDValue ExpandIntOp_XINT_TO_FP(SDNode *N); 502 SDValue ExpandIntOp_RETURNADDR(SDNode *N); 503 SDValue ExpandIntOp_ATOMIC_STORE(SDNode *N); 504 SDValue ExpandIntOp_SPLAT_VECTOR(SDNode *N); 505 SDValue ExpandIntOp_STACKMAP(SDNode *N, unsigned OpNo); 506 SDValue ExpandIntOp_PATCHPOINT(SDNode *N, unsigned OpNo); 507 SDValue ExpandIntOp_VP_STRIDED(SDNode *N, unsigned OpNo); 508 509 void IntegerExpandSetCCOperands(SDValue &NewLHS, SDValue &NewRHS, 510 ISD::CondCode &CCCode, const SDLoc &dl); 511 512 //===--------------------------------------------------------------------===// 513 // Float to Integer Conversion Support: LegalizeFloatTypes.cpp 514 //===--------------------------------------------------------------------===// 515 516 /// GetSoftenedFloat - Given a processed operand Op which was converted to an 517 /// integer of the same size, this returns the integer. The integer contains 518 /// exactly the same bits as Op - only the type changed. For example, if Op 519 /// is an f32 which was softened to an i32, then this method returns an i32, 520 /// the bits of which coincide with those of Op GetSoftenedFloat(SDValue Op)521 SDValue GetSoftenedFloat(SDValue Op) { 522 TableId Id = getTableId(Op); 523 auto Iter = SoftenedFloats.find(Id); 524 if (Iter == SoftenedFloats.end()) { 525 assert(isSimpleLegalType(Op.getValueType()) && 526 "Operand wasn't converted to integer?"); 527 return Op; 528 } 529 SDValue SoftenedOp = getSDValue(Iter->second); 530 assert(SoftenedOp.getNode() && "Unconverted op in SoftenedFloats?"); 531 return SoftenedOp; 532 } 533 void SetSoftenedFloat(SDValue Op, SDValue Result); 534 535 // Convert Float Results to Integer. 536 void SoftenFloatResult(SDNode *N, unsigned ResNo); 537 SDValue SoftenFloatRes_Unary(SDNode *N, RTLIB::Libcall LC); 538 SDValue SoftenFloatRes_Binary(SDNode *N, RTLIB::Libcall LC); 539 SDValue SoftenFloatRes_MERGE_VALUES(SDNode *N, unsigned ResNo); 540 SDValue SoftenFloatRes_ARITH_FENCE(SDNode *N); 541 SDValue SoftenFloatRes_BITCAST(SDNode *N); 542 SDValue SoftenFloatRes_BUILD_PAIR(SDNode *N); 543 SDValue SoftenFloatRes_ConstantFP(SDNode *N); 544 SDValue SoftenFloatRes_EXTRACT_VECTOR_ELT(SDNode *N, unsigned ResNo); 545 SDValue SoftenFloatRes_FABS(SDNode *N); 546 SDValue SoftenFloatRes_FMINNUM(SDNode *N); 547 SDValue SoftenFloatRes_FMAXNUM(SDNode *N); 548 SDValue SoftenFloatRes_FADD(SDNode *N); 549 SDValue SoftenFloatRes_FCBRT(SDNode *N); 550 SDValue SoftenFloatRes_FCEIL(SDNode *N); 551 SDValue SoftenFloatRes_FCOPYSIGN(SDNode *N); 552 SDValue SoftenFloatRes_FCOS(SDNode *N); 553 SDValue SoftenFloatRes_FDIV(SDNode *N); 554 SDValue SoftenFloatRes_FEXP(SDNode *N); 555 SDValue SoftenFloatRes_FEXP2(SDNode *N); 556 SDValue SoftenFloatRes_FEXP10(SDNode *N); 557 SDValue SoftenFloatRes_FFLOOR(SDNode *N); 558 SDValue SoftenFloatRes_FLOG(SDNode *N); 559 SDValue SoftenFloatRes_FLOG2(SDNode *N); 560 SDValue SoftenFloatRes_FLOG10(SDNode *N); 561 SDValue SoftenFloatRes_FMA(SDNode *N); 562 SDValue SoftenFloatRes_FMUL(SDNode *N); 563 SDValue SoftenFloatRes_FNEARBYINT(SDNode *N); 564 SDValue SoftenFloatRes_FNEG(SDNode *N); 565 SDValue SoftenFloatRes_FP_EXTEND(SDNode *N); 566 SDValue SoftenFloatRes_FP16_TO_FP(SDNode *N); 567 SDValue SoftenFloatRes_BF16_TO_FP(SDNode *N); 568 SDValue SoftenFloatRes_FP_ROUND(SDNode *N); 569 SDValue SoftenFloatRes_FPOW(SDNode *N); 570 SDValue SoftenFloatRes_ExpOp(SDNode *N); 571 SDValue SoftenFloatRes_FFREXP(SDNode *N); 572 SDValue SoftenFloatRes_FREEZE(SDNode *N); 573 SDValue SoftenFloatRes_FREM(SDNode *N); 574 SDValue SoftenFloatRes_FRINT(SDNode *N); 575 SDValue SoftenFloatRes_FROUND(SDNode *N); 576 SDValue SoftenFloatRes_FROUNDEVEN(SDNode *N); 577 SDValue SoftenFloatRes_FSIN(SDNode *N); 578 SDValue SoftenFloatRes_FSQRT(SDNode *N); 579 SDValue SoftenFloatRes_FSUB(SDNode *N); 580 SDValue SoftenFloatRes_FTRUNC(SDNode *N); 581 SDValue SoftenFloatRes_LOAD(SDNode *N); 582 SDValue SoftenFloatRes_SELECT(SDNode *N); 583 SDValue SoftenFloatRes_SELECT_CC(SDNode *N); 584 SDValue SoftenFloatRes_UNDEF(SDNode *N); 585 SDValue SoftenFloatRes_VAARG(SDNode *N); 586 SDValue SoftenFloatRes_XINT_TO_FP(SDNode *N); 587 SDValue SoftenFloatRes_VECREDUCE(SDNode *N); 588 SDValue SoftenFloatRes_VECREDUCE_SEQ(SDNode *N); 589 590 // Convert Float Operand to Integer. 591 bool SoftenFloatOperand(SDNode *N, unsigned OpNo); 592 SDValue SoftenFloatOp_Unary(SDNode *N, RTLIB::Libcall LC); 593 SDValue SoftenFloatOp_BITCAST(SDNode *N); 594 SDValue SoftenFloatOp_BR_CC(SDNode *N); 595 SDValue SoftenFloatOp_FP_ROUND(SDNode *N); 596 SDValue SoftenFloatOp_FP_TO_XINT(SDNode *N); 597 SDValue SoftenFloatOp_FP_TO_XINT_SAT(SDNode *N); 598 SDValue SoftenFloatOp_LROUND(SDNode *N); 599 SDValue SoftenFloatOp_LLROUND(SDNode *N); 600 SDValue SoftenFloatOp_LRINT(SDNode *N); 601 SDValue SoftenFloatOp_LLRINT(SDNode *N); 602 SDValue SoftenFloatOp_SELECT_CC(SDNode *N); 603 SDValue SoftenFloatOp_SETCC(SDNode *N); 604 SDValue SoftenFloatOp_STORE(SDNode *N, unsigned OpNo); 605 SDValue SoftenFloatOp_FCOPYSIGN(SDNode *N); 606 607 //===--------------------------------------------------------------------===// 608 // Float Expansion Support: LegalizeFloatTypes.cpp 609 //===--------------------------------------------------------------------===// 610 611 /// Given a processed operand Op which was expanded into two floating-point 612 /// values of half the size, this returns the two halves. 613 /// The low bits of Op are exactly equal to the bits of Lo; the high bits 614 /// exactly equal Hi. For example, if Op is a ppcf128 which was expanded 615 /// into two f64's, then this method returns the two f64's, with Lo being 616 /// equal to the lower 64 bits of Op, and Hi to the upper 64 bits. 617 void GetExpandedFloat(SDValue Op, SDValue &Lo, SDValue &Hi); 618 void SetExpandedFloat(SDValue Op, SDValue Lo, SDValue Hi); 619 620 // Float Result Expansion. 621 void ExpandFloatResult(SDNode *N, unsigned ResNo); 622 void ExpandFloatRes_ConstantFP(SDNode *N, SDValue &Lo, SDValue &Hi); 623 void ExpandFloatRes_Unary(SDNode *N, RTLIB::Libcall LC, 624 SDValue &Lo, SDValue &Hi); 625 void ExpandFloatRes_Binary(SDNode *N, RTLIB::Libcall LC, 626 SDValue &Lo, SDValue &Hi); 627 void ExpandFloatRes_FABS (SDNode *N, SDValue &Lo, SDValue &Hi); 628 void ExpandFloatRes_FMINNUM (SDNode *N, SDValue &Lo, SDValue &Hi); 629 void ExpandFloatRes_FMAXNUM (SDNode *N, SDValue &Lo, SDValue &Hi); 630 void ExpandFloatRes_FADD (SDNode *N, SDValue &Lo, SDValue &Hi); 631 void ExpandFloatRes_FCBRT (SDNode *N, SDValue &Lo, SDValue &Hi); 632 void ExpandFloatRes_FCEIL (SDNode *N, SDValue &Lo, SDValue &Hi); 633 void ExpandFloatRes_FCOPYSIGN (SDNode *N, SDValue &Lo, SDValue &Hi); 634 void ExpandFloatRes_FCOS (SDNode *N, SDValue &Lo, SDValue &Hi); 635 void ExpandFloatRes_FDIV (SDNode *N, SDValue &Lo, SDValue &Hi); 636 void ExpandFloatRes_FEXP (SDNode *N, SDValue &Lo, SDValue &Hi); 637 void ExpandFloatRes_FEXP2 (SDNode *N, SDValue &Lo, SDValue &Hi); 638 void ExpandFloatRes_FEXP10 (SDNode *N, SDValue &Lo, SDValue &Hi); 639 void ExpandFloatRes_FFLOOR (SDNode *N, SDValue &Lo, SDValue &Hi); 640 void ExpandFloatRes_FLOG (SDNode *N, SDValue &Lo, SDValue &Hi); 641 void ExpandFloatRes_FLOG2 (SDNode *N, SDValue &Lo, SDValue &Hi); 642 void ExpandFloatRes_FLOG10 (SDNode *N, SDValue &Lo, SDValue &Hi); 643 void ExpandFloatRes_FMA (SDNode *N, SDValue &Lo, SDValue &Hi); 644 void ExpandFloatRes_FMUL (SDNode *N, SDValue &Lo, SDValue &Hi); 645 void ExpandFloatRes_FNEARBYINT(SDNode *N, SDValue &Lo, SDValue &Hi); 646 void ExpandFloatRes_FNEG (SDNode *N, SDValue &Lo, SDValue &Hi); 647 void ExpandFloatRes_FP_EXTEND (SDNode *N, SDValue &Lo, SDValue &Hi); 648 void ExpandFloatRes_FPOW (SDNode *N, SDValue &Lo, SDValue &Hi); 649 void ExpandFloatRes_FPOWI (SDNode *N, SDValue &Lo, SDValue &Hi); 650 void ExpandFloatRes_FLDEXP (SDNode *N, SDValue &Lo, SDValue &Hi); 651 void ExpandFloatRes_FREEZE (SDNode *N, SDValue &Lo, SDValue &Hi); 652 void ExpandFloatRes_FREM (SDNode *N, SDValue &Lo, SDValue &Hi); 653 void ExpandFloatRes_FRINT (SDNode *N, SDValue &Lo, SDValue &Hi); 654 void ExpandFloatRes_FROUND (SDNode *N, SDValue &Lo, SDValue &Hi); 655 void ExpandFloatRes_FROUNDEVEN(SDNode *N, SDValue &Lo, SDValue &Hi); 656 void ExpandFloatRes_FSIN (SDNode *N, SDValue &Lo, SDValue &Hi); 657 void ExpandFloatRes_FSQRT (SDNode *N, SDValue &Lo, SDValue &Hi); 658 void ExpandFloatRes_FSUB (SDNode *N, SDValue &Lo, SDValue &Hi); 659 void ExpandFloatRes_FTRUNC (SDNode *N, SDValue &Lo, SDValue &Hi); 660 void ExpandFloatRes_LOAD (SDNode *N, SDValue &Lo, SDValue &Hi); 661 void ExpandFloatRes_XINT_TO_FP(SDNode *N, SDValue &Lo, SDValue &Hi); 662 663 // Float Operand Expansion. 664 bool ExpandFloatOperand(SDNode *N, unsigned OpNo); 665 SDValue ExpandFloatOp_BR_CC(SDNode *N); 666 SDValue ExpandFloatOp_FCOPYSIGN(SDNode *N); 667 SDValue ExpandFloatOp_FP_ROUND(SDNode *N); 668 SDValue ExpandFloatOp_FP_TO_XINT(SDNode *N); 669 SDValue ExpandFloatOp_LROUND(SDNode *N); 670 SDValue ExpandFloatOp_LLROUND(SDNode *N); 671 SDValue ExpandFloatOp_LRINT(SDNode *N); 672 SDValue ExpandFloatOp_LLRINT(SDNode *N); 673 SDValue ExpandFloatOp_SELECT_CC(SDNode *N); 674 SDValue ExpandFloatOp_SETCC(SDNode *N); 675 SDValue ExpandFloatOp_STORE(SDNode *N, unsigned OpNo); 676 677 void FloatExpandSetCCOperands(SDValue &NewLHS, SDValue &NewRHS, 678 ISD::CondCode &CCCode, const SDLoc &dl, 679 SDValue &Chain, bool IsSignaling = false); 680 681 //===--------------------------------------------------------------------===// 682 // Float promotion support: LegalizeFloatTypes.cpp 683 //===--------------------------------------------------------------------===// 684 GetPromotedFloat(SDValue Op)685 SDValue GetPromotedFloat(SDValue Op) { 686 TableId &PromotedId = PromotedFloats[getTableId(Op)]; 687 SDValue PromotedOp = getSDValue(PromotedId); 688 assert(PromotedOp.getNode() && "Operand wasn't promoted?"); 689 return PromotedOp; 690 } 691 void SetPromotedFloat(SDValue Op, SDValue Result); 692 693 void PromoteFloatResult(SDNode *N, unsigned ResNo); 694 SDValue PromoteFloatRes_BITCAST(SDNode *N); 695 SDValue PromoteFloatRes_BinOp(SDNode *N); 696 SDValue PromoteFloatRes_ConstantFP(SDNode *N); 697 SDValue PromoteFloatRes_EXTRACT_VECTOR_ELT(SDNode *N); 698 SDValue PromoteFloatRes_FCOPYSIGN(SDNode *N); 699 SDValue PromoteFloatRes_FMAD(SDNode *N); 700 SDValue PromoteFloatRes_ExpOp(SDNode *N); 701 SDValue PromoteFloatRes_FFREXP(SDNode *N); 702 SDValue PromoteFloatRes_FP_ROUND(SDNode *N); 703 SDValue PromoteFloatRes_STRICT_FP_ROUND(SDNode *N); 704 SDValue PromoteFloatRes_LOAD(SDNode *N); 705 SDValue PromoteFloatRes_SELECT(SDNode *N); 706 SDValue PromoteFloatRes_SELECT_CC(SDNode *N); 707 SDValue PromoteFloatRes_UnaryOp(SDNode *N); 708 SDValue PromoteFloatRes_UNDEF(SDNode *N); 709 SDValue BitcastToInt_ATOMIC_SWAP(SDNode *N); 710 SDValue PromoteFloatRes_XINT_TO_FP(SDNode *N); 711 SDValue PromoteFloatRes_VECREDUCE(SDNode *N); 712 SDValue PromoteFloatRes_VECREDUCE_SEQ(SDNode *N); 713 714 bool PromoteFloatOperand(SDNode *N, unsigned OpNo); 715 SDValue PromoteFloatOp_BITCAST(SDNode *N, unsigned OpNo); 716 SDValue PromoteFloatOp_FCOPYSIGN(SDNode *N, unsigned OpNo); 717 SDValue PromoteFloatOp_FP_EXTEND(SDNode *N, unsigned OpNo); 718 SDValue PromoteFloatOp_STRICT_FP_EXTEND(SDNode *N, unsigned OpNo); 719 SDValue PromoteFloatOp_UnaryOp(SDNode *N, unsigned OpNo); 720 SDValue PromoteFloatOp_FP_TO_XINT_SAT(SDNode *N, unsigned OpNo); 721 SDValue PromoteFloatOp_STORE(SDNode *N, unsigned OpNo); 722 SDValue PromoteFloatOp_SELECT_CC(SDNode *N, unsigned OpNo); 723 SDValue PromoteFloatOp_SETCC(SDNode *N, unsigned OpNo); 724 725 //===--------------------------------------------------------------------===// 726 // Half soft promotion support: LegalizeFloatTypes.cpp 727 //===--------------------------------------------------------------------===// 728 GetSoftPromotedHalf(SDValue Op)729 SDValue GetSoftPromotedHalf(SDValue Op) { 730 TableId &PromotedId = SoftPromotedHalfs[getTableId(Op)]; 731 SDValue PromotedOp = getSDValue(PromotedId); 732 assert(PromotedOp.getNode() && "Operand wasn't promoted?"); 733 return PromotedOp; 734 } 735 void SetSoftPromotedHalf(SDValue Op, SDValue Result); 736 737 void SoftPromoteHalfResult(SDNode *N, unsigned ResNo); 738 SDValue SoftPromoteHalfRes_BinOp(SDNode *N); 739 SDValue SoftPromoteHalfRes_BITCAST(SDNode *N); 740 SDValue SoftPromoteHalfRes_ConstantFP(SDNode *N); 741 SDValue SoftPromoteHalfRes_EXTRACT_VECTOR_ELT(SDNode *N); 742 SDValue SoftPromoteHalfRes_FCOPYSIGN(SDNode *N); 743 SDValue SoftPromoteHalfRes_FMAD(SDNode *N); 744 SDValue SoftPromoteHalfRes_ExpOp(SDNode *N); 745 SDValue SoftPromoteHalfRes_FFREXP(SDNode *N); 746 SDValue SoftPromoteHalfRes_FP_ROUND(SDNode *N); 747 SDValue SoftPromoteHalfRes_LOAD(SDNode *N); 748 SDValue SoftPromoteHalfRes_SELECT(SDNode *N); 749 SDValue SoftPromoteHalfRes_SELECT_CC(SDNode *N); 750 SDValue SoftPromoteHalfRes_UnaryOp(SDNode *N); 751 SDValue SoftPromoteHalfRes_XINT_TO_FP(SDNode *N); 752 SDValue SoftPromoteHalfRes_UNDEF(SDNode *N); 753 SDValue SoftPromoteHalfRes_VECREDUCE(SDNode *N); 754 SDValue SoftPromoteHalfRes_VECREDUCE_SEQ(SDNode *N); 755 756 bool SoftPromoteHalfOperand(SDNode *N, unsigned OpNo); 757 SDValue SoftPromoteHalfOp_BITCAST(SDNode *N); 758 SDValue SoftPromoteHalfOp_FCOPYSIGN(SDNode *N, unsigned OpNo); 759 SDValue SoftPromoteHalfOp_FP_EXTEND(SDNode *N); 760 SDValue SoftPromoteHalfOp_FP_TO_XINT(SDNode *N); 761 SDValue SoftPromoteHalfOp_FP_TO_XINT_SAT(SDNode *N); 762 SDValue SoftPromoteHalfOp_SETCC(SDNode *N); 763 SDValue SoftPromoteHalfOp_SELECT_CC(SDNode *N, unsigned OpNo); 764 SDValue SoftPromoteHalfOp_STORE(SDNode *N, unsigned OpNo); 765 SDValue SoftPromoteHalfOp_STACKMAP(SDNode *N, unsigned OpNo); 766 SDValue SoftPromoteHalfOp_PATCHPOINT(SDNode *N, unsigned OpNo); 767 768 //===--------------------------------------------------------------------===// 769 // Scalarization Support: LegalizeVectorTypes.cpp 770 //===--------------------------------------------------------------------===// 771 772 /// Given a processed one-element vector Op which was scalarized to its 773 /// element type, this returns the element. For example, if Op is a v1i32, 774 /// Op = < i32 val >, this method returns val, an i32. GetScalarizedVector(SDValue Op)775 SDValue GetScalarizedVector(SDValue Op) { 776 TableId &ScalarizedId = ScalarizedVectors[getTableId(Op)]; 777 SDValue ScalarizedOp = getSDValue(ScalarizedId); 778 assert(ScalarizedOp.getNode() && "Operand wasn't scalarized?"); 779 return ScalarizedOp; 780 } 781 void SetScalarizedVector(SDValue Op, SDValue Result); 782 783 // Vector Result Scalarization: <1 x ty> -> ty. 784 void ScalarizeVectorResult(SDNode *N, unsigned ResNo); 785 SDValue ScalarizeVecRes_MERGE_VALUES(SDNode *N, unsigned ResNo); 786 SDValue ScalarizeVecRes_BinOp(SDNode *N); 787 SDValue ScalarizeVecRes_TernaryOp(SDNode *N); 788 SDValue ScalarizeVecRes_UnaryOp(SDNode *N); 789 SDValue ScalarizeVecRes_StrictFPOp(SDNode *N); 790 SDValue ScalarizeVecRes_OverflowOp(SDNode *N, unsigned ResNo); 791 SDValue ScalarizeVecRes_InregOp(SDNode *N); 792 SDValue ScalarizeVecRes_VecInregOp(SDNode *N); 793 794 SDValue ScalarizeVecRes_BITCAST(SDNode *N); 795 SDValue ScalarizeVecRes_BUILD_VECTOR(SDNode *N); 796 SDValue ScalarizeVecRes_EXTRACT_SUBVECTOR(SDNode *N); 797 SDValue ScalarizeVecRes_FP_ROUND(SDNode *N); 798 SDValue ScalarizeVecRes_ExpOp(SDNode *N); 799 SDValue ScalarizeVecRes_INSERT_VECTOR_ELT(SDNode *N); 800 SDValue ScalarizeVecRes_LOAD(LoadSDNode *N); 801 SDValue ScalarizeVecRes_SCALAR_TO_VECTOR(SDNode *N); 802 SDValue ScalarizeVecRes_VSELECT(SDNode *N); 803 SDValue ScalarizeVecRes_SELECT(SDNode *N); 804 SDValue ScalarizeVecRes_SELECT_CC(SDNode *N); 805 SDValue ScalarizeVecRes_SETCC(SDNode *N); 806 SDValue ScalarizeVecRes_UNDEF(SDNode *N); 807 SDValue ScalarizeVecRes_VECTOR_SHUFFLE(SDNode *N); 808 SDValue ScalarizeVecRes_FP_TO_XINT_SAT(SDNode *N); 809 SDValue ScalarizeVecRes_IS_FPCLASS(SDNode *N); 810 811 SDValue ScalarizeVecRes_FIX(SDNode *N); 812 SDValue ScalarizeVecRes_FFREXP(SDNode *N, unsigned ResNo); 813 814 // Vector Operand Scalarization: <1 x ty> -> ty. 815 bool ScalarizeVectorOperand(SDNode *N, unsigned OpNo); 816 SDValue ScalarizeVecOp_BITCAST(SDNode *N); 817 SDValue ScalarizeVecOp_UnaryOp(SDNode *N); 818 SDValue ScalarizeVecOp_UnaryOp_StrictFP(SDNode *N); 819 SDValue ScalarizeVecOp_CONCAT_VECTORS(SDNode *N); 820 SDValue ScalarizeVecOp_EXTRACT_VECTOR_ELT(SDNode *N); 821 SDValue ScalarizeVecOp_VSELECT(SDNode *N); 822 SDValue ScalarizeVecOp_VSETCC(SDNode *N); 823 SDValue ScalarizeVecOp_STORE(StoreSDNode *N, unsigned OpNo); 824 SDValue ScalarizeVecOp_FP_ROUND(SDNode *N, unsigned OpNo); 825 SDValue ScalarizeVecOp_STRICT_FP_ROUND(SDNode *N, unsigned OpNo); 826 SDValue ScalarizeVecOp_FP_EXTEND(SDNode *N); 827 SDValue ScalarizeVecOp_STRICT_FP_EXTEND(SDNode *N); 828 SDValue ScalarizeVecOp_VECREDUCE(SDNode *N); 829 SDValue ScalarizeVecOp_VECREDUCE_SEQ(SDNode *N); 830 831 //===--------------------------------------------------------------------===// 832 // Vector Splitting Support: LegalizeVectorTypes.cpp 833 //===--------------------------------------------------------------------===// 834 835 /// Given a processed vector Op which was split into vectors of half the size, 836 /// this method returns the halves. The first elements of Op coincide with the 837 /// elements of Lo; the remaining elements of Op coincide with the elements of 838 /// Hi: Op is what you would get by concatenating Lo and Hi. 839 /// For example, if Op is a v8i32 that was split into two v4i32's, then this 840 /// method returns the two v4i32's, with Lo corresponding to the first 4 841 /// elements of Op, and Hi to the last 4 elements. 842 void GetSplitVector(SDValue Op, SDValue &Lo, SDValue &Hi); 843 void SetSplitVector(SDValue Op, SDValue Lo, SDValue Hi); 844 845 /// Split mask operator of a VP intrinsic. 846 std::pair<SDValue, SDValue> SplitMask(SDValue Mask); 847 848 /// Split mask operator of a VP intrinsic in a given location. 849 std::pair<SDValue, SDValue> SplitMask(SDValue Mask, const SDLoc &DL); 850 851 // Helper function for incrementing the pointer when splitting 852 // memory operations 853 void IncrementPointer(MemSDNode *N, EVT MemVT, MachinePointerInfo &MPI, 854 SDValue &Ptr, uint64_t *ScaledOffset = nullptr); 855 856 // Vector Result Splitting: <128 x ty> -> 2 x <64 x ty>. 857 void SplitVectorResult(SDNode *N, unsigned ResNo); 858 void SplitVecRes_BinOp(SDNode *N, SDValue &Lo, SDValue &Hi); 859 void SplitVecRes_TernaryOp(SDNode *N, SDValue &Lo, SDValue &Hi); 860 void SplitVecRes_UnaryOp(SDNode *N, SDValue &Lo, SDValue &Hi); 861 void SplitVecRes_FFREXP(SDNode *N, unsigned ResNo, SDValue &Lo, SDValue &Hi); 862 void SplitVecRes_ExtendOp(SDNode *N, SDValue &Lo, SDValue &Hi); 863 void SplitVecRes_InregOp(SDNode *N, SDValue &Lo, SDValue &Hi); 864 void SplitVecRes_ExtVecInRegOp(SDNode *N, SDValue &Lo, SDValue &Hi); 865 void SplitVecRes_StrictFPOp(SDNode *N, SDValue &Lo, SDValue &Hi); 866 void SplitVecRes_OverflowOp(SDNode *N, unsigned ResNo, 867 SDValue &Lo, SDValue &Hi); 868 869 void SplitVecRes_FIX(SDNode *N, SDValue &Lo, SDValue &Hi); 870 871 void SplitVecRes_BITCAST(SDNode *N, SDValue &Lo, SDValue &Hi); 872 void SplitVecRes_BUILD_VECTOR(SDNode *N, SDValue &Lo, SDValue &Hi); 873 void SplitVecRes_CONCAT_VECTORS(SDNode *N, SDValue &Lo, SDValue &Hi); 874 void SplitVecRes_EXTRACT_SUBVECTOR(SDNode *N, SDValue &Lo, SDValue &Hi); 875 void SplitVecRes_INSERT_SUBVECTOR(SDNode *N, SDValue &Lo, SDValue &Hi); 876 void SplitVecRes_FPOp_MultiType(SDNode *N, SDValue &Lo, SDValue &Hi); 877 void SplitVecRes_IS_FPCLASS(SDNode *N, SDValue &Lo, SDValue &Hi); 878 void SplitVecRes_INSERT_VECTOR_ELT(SDNode *N, SDValue &Lo, SDValue &Hi); 879 void SplitVecRes_LOAD(LoadSDNode *LD, SDValue &Lo, SDValue &Hi); 880 void SplitVecRes_VP_LOAD(VPLoadSDNode *LD, SDValue &Lo, SDValue &Hi); 881 void SplitVecRes_VP_STRIDED_LOAD(VPStridedLoadSDNode *SLD, SDValue &Lo, 882 SDValue &Hi); 883 void SplitVecRes_MLOAD(MaskedLoadSDNode *MLD, SDValue &Lo, SDValue &Hi); 884 void SplitVecRes_Gather(MemSDNode *VPGT, SDValue &Lo, SDValue &Hi, 885 bool SplitSETCC = false); 886 void SplitVecRes_ScalarOp(SDNode *N, SDValue &Lo, SDValue &Hi); 887 void SplitVecRes_STEP_VECTOR(SDNode *N, SDValue &Lo, SDValue &Hi); 888 void SplitVecRes_SETCC(SDNode *N, SDValue &Lo, SDValue &Hi); 889 void SplitVecRes_VECTOR_REVERSE(SDNode *N, SDValue &Lo, SDValue &Hi); 890 void SplitVecRes_VECTOR_SHUFFLE(ShuffleVectorSDNode *N, SDValue &Lo, 891 SDValue &Hi); 892 void SplitVecRes_VECTOR_SPLICE(SDNode *N, SDValue &Lo, SDValue &Hi); 893 void SplitVecRes_VECTOR_DEINTERLEAVE(SDNode *N); 894 void SplitVecRes_VECTOR_INTERLEAVE(SDNode *N); 895 void SplitVecRes_VAARG(SDNode *N, SDValue &Lo, SDValue &Hi); 896 void SplitVecRes_FP_TO_XINT_SAT(SDNode *N, SDValue &Lo, SDValue &Hi); 897 void SplitVecRes_VP_REVERSE(SDNode *N, SDValue &Lo, SDValue &Hi); 898 899 // Vector Operand Splitting: <128 x ty> -> 2 x <64 x ty>. 900 bool SplitVectorOperand(SDNode *N, unsigned OpNo); 901 SDValue SplitVecOp_VSELECT(SDNode *N, unsigned OpNo); 902 SDValue SplitVecOp_VECREDUCE(SDNode *N, unsigned OpNo); 903 SDValue SplitVecOp_VECREDUCE_SEQ(SDNode *N); 904 SDValue SplitVecOp_VP_REDUCE(SDNode *N, unsigned OpNo); 905 SDValue SplitVecOp_UnaryOp(SDNode *N); 906 SDValue SplitVecOp_TruncateHelper(SDNode *N); 907 908 SDValue SplitVecOp_BITCAST(SDNode *N); 909 SDValue SplitVecOp_INSERT_SUBVECTOR(SDNode *N, unsigned OpNo); 910 SDValue SplitVecOp_EXTRACT_SUBVECTOR(SDNode *N); 911 SDValue SplitVecOp_EXTRACT_VECTOR_ELT(SDNode *N); 912 SDValue SplitVecOp_ExtVecInRegOp(SDNode *N); 913 SDValue SplitVecOp_STORE(StoreSDNode *N, unsigned OpNo); 914 SDValue SplitVecOp_VP_STORE(VPStoreSDNode *N, unsigned OpNo); 915 SDValue SplitVecOp_VP_STRIDED_STORE(VPStridedStoreSDNode *N, unsigned OpNo); 916 SDValue SplitVecOp_MSTORE(MaskedStoreSDNode *N, unsigned OpNo); 917 SDValue SplitVecOp_Scatter(MemSDNode *N, unsigned OpNo); 918 SDValue SplitVecOp_Gather(MemSDNode *MGT, unsigned OpNo); 919 SDValue SplitVecOp_CONCAT_VECTORS(SDNode *N); 920 SDValue SplitVecOp_VSETCC(SDNode *N); 921 SDValue SplitVecOp_FP_ROUND(SDNode *N); 922 SDValue SplitVecOp_FPOpDifferentTypes(SDNode *N); 923 SDValue SplitVecOp_FP_TO_XINT_SAT(SDNode *N); 924 925 //===--------------------------------------------------------------------===// 926 // Vector Widening Support: LegalizeVectorTypes.cpp 927 //===--------------------------------------------------------------------===// 928 929 /// Given a processed vector Op which was widened into a larger vector, this 930 /// method returns the larger vector. The elements of the returned vector 931 /// consist of the elements of Op followed by elements containing rubbish. 932 /// For example, if Op is a v2i32 that was widened to a v4i32, then this 933 /// method returns a v4i32 for which the first two elements are the same as 934 /// those of Op, while the last two elements contain rubbish. GetWidenedVector(SDValue Op)935 SDValue GetWidenedVector(SDValue Op) { 936 TableId &WidenedId = WidenedVectors[getTableId(Op)]; 937 SDValue WidenedOp = getSDValue(WidenedId); 938 assert(WidenedOp.getNode() && "Operand wasn't widened?"); 939 return WidenedOp; 940 } 941 void SetWidenedVector(SDValue Op, SDValue Result); 942 943 /// Given a mask Mask, returns the larger vector into which Mask was widened. GetWidenedMask(SDValue Mask,ElementCount EC)944 SDValue GetWidenedMask(SDValue Mask, ElementCount EC) { 945 // For VP operations, we must also widen the mask. Note that the mask type 946 // may not actually need widening, leading it be split along with the VP 947 // operation. 948 // FIXME: This could lead to an infinite split/widen loop. We only handle 949 // the case where the mask needs widening to an identically-sized type as 950 // the vector inputs. 951 assert(getTypeAction(Mask.getValueType()) == 952 TargetLowering::TypeWidenVector && 953 "Unable to widen binary VP op"); 954 Mask = GetWidenedVector(Mask); 955 assert(Mask.getValueType().getVectorElementCount() == EC && 956 "Unable to widen binary VP op"); 957 return Mask; 958 } 959 960 // Widen Vector Result Promotion. 961 void WidenVectorResult(SDNode *N, unsigned ResNo); 962 SDValue WidenVecRes_MERGE_VALUES(SDNode* N, unsigned ResNo); 963 SDValue WidenVecRes_AssertZext(SDNode* N); 964 SDValue WidenVecRes_BITCAST(SDNode* N); 965 SDValue WidenVecRes_BUILD_VECTOR(SDNode* N); 966 SDValue WidenVecRes_CONCAT_VECTORS(SDNode* N); 967 SDValue WidenVecRes_EXTEND_VECTOR_INREG(SDNode* N); 968 SDValue WidenVecRes_EXTRACT_SUBVECTOR(SDNode* N); 969 SDValue WidenVecRes_INSERT_SUBVECTOR(SDNode *N); 970 SDValue WidenVecRes_INSERT_VECTOR_ELT(SDNode* N); 971 SDValue WidenVecRes_LOAD(SDNode* N); 972 SDValue WidenVecRes_VP_LOAD(VPLoadSDNode *N); 973 SDValue WidenVecRes_VP_STRIDED_LOAD(VPStridedLoadSDNode *N); 974 SDValue WidenVecRes_MLOAD(MaskedLoadSDNode* N); 975 SDValue WidenVecRes_MGATHER(MaskedGatherSDNode* N); 976 SDValue WidenVecRes_VP_GATHER(VPGatherSDNode* N); 977 SDValue WidenVecRes_ScalarOp(SDNode* N); 978 SDValue WidenVecRes_Select(SDNode *N); 979 SDValue WidenVSELECTMask(SDNode *N); 980 SDValue WidenVecRes_SELECT_CC(SDNode* N); 981 SDValue WidenVecRes_SETCC(SDNode* N); 982 SDValue WidenVecRes_STRICT_FSETCC(SDNode* N); 983 SDValue WidenVecRes_UNDEF(SDNode *N); 984 SDValue WidenVecRes_VECTOR_SHUFFLE(ShuffleVectorSDNode *N); 985 SDValue WidenVecRes_VECTOR_REVERSE(SDNode *N); 986 987 SDValue WidenVecRes_Ternary(SDNode *N); 988 SDValue WidenVecRes_Binary(SDNode *N); 989 SDValue WidenVecRes_BinaryCanTrap(SDNode *N); 990 SDValue WidenVecRes_BinaryWithExtraScalarOp(SDNode *N); 991 SDValue WidenVecRes_StrictFP(SDNode *N); 992 SDValue WidenVecRes_OverflowOp(SDNode *N, unsigned ResNo); 993 SDValue WidenVecRes_Convert(SDNode *N); 994 SDValue WidenVecRes_Convert_StrictFP(SDNode *N); 995 SDValue WidenVecRes_FP_TO_XINT_SAT(SDNode *N); 996 SDValue WidenVecRes_XRINT(SDNode *N); 997 SDValue WidenVecRes_FCOPYSIGN(SDNode *N); 998 SDValue WidenVecRes_IS_FPCLASS(SDNode *N); 999 SDValue WidenVecRes_ExpOp(SDNode *N); 1000 SDValue WidenVecRes_Unary(SDNode *N); 1001 SDValue WidenVecRes_InregOp(SDNode *N); 1002 1003 // Widen Vector Operand. 1004 bool WidenVectorOperand(SDNode *N, unsigned OpNo); 1005 SDValue WidenVecOp_BITCAST(SDNode *N); 1006 SDValue WidenVecOp_CONCAT_VECTORS(SDNode *N); 1007 SDValue WidenVecOp_EXTEND(SDNode *N); 1008 SDValue WidenVecOp_EXTRACT_VECTOR_ELT(SDNode *N); 1009 SDValue WidenVecOp_INSERT_SUBVECTOR(SDNode *N); 1010 SDValue WidenVecOp_EXTRACT_SUBVECTOR(SDNode *N); 1011 SDValue WidenVecOp_EXTEND_VECTOR_INREG(SDNode *N); 1012 SDValue WidenVecOp_STORE(SDNode* N); 1013 SDValue WidenVecOp_VP_STORE(SDNode *N, unsigned OpNo); 1014 SDValue WidenVecOp_VP_STRIDED_STORE(SDNode *N, unsigned OpNo); 1015 SDValue WidenVecOp_MSTORE(SDNode* N, unsigned OpNo); 1016 SDValue WidenVecOp_MGATHER(SDNode* N, unsigned OpNo); 1017 SDValue WidenVecOp_MSCATTER(SDNode* N, unsigned OpNo); 1018 SDValue WidenVecOp_VP_SCATTER(SDNode* N, unsigned OpNo); 1019 SDValue WidenVecOp_SETCC(SDNode* N); 1020 SDValue WidenVecOp_STRICT_FSETCC(SDNode* N); 1021 SDValue WidenVecOp_VSELECT(SDNode *N); 1022 1023 SDValue WidenVecOp_Convert(SDNode *N); 1024 SDValue WidenVecOp_FP_TO_XINT_SAT(SDNode *N); 1025 SDValue WidenVecOp_UnrollVectorOp(SDNode *N); 1026 SDValue WidenVecOp_IS_FPCLASS(SDNode *N); 1027 SDValue WidenVecOp_VECREDUCE(SDNode *N); 1028 SDValue WidenVecOp_VECREDUCE_SEQ(SDNode *N); 1029 SDValue WidenVecOp_VP_REDUCE(SDNode *N); 1030 SDValue WidenVecOp_ExpOp(SDNode *N); 1031 1032 /// Helper function to generate a set of operations to perform 1033 /// a vector operation for a wider type. 1034 /// 1035 SDValue UnrollVectorOp_StrictFP(SDNode *N, unsigned ResNE); 1036 1037 //===--------------------------------------------------------------------===// 1038 // Vector Widening Utilities Support: LegalizeVectorTypes.cpp 1039 //===--------------------------------------------------------------------===// 1040 1041 /// Helper function to generate a set of loads to load a vector with a 1042 /// resulting wider type. It takes: 1043 /// LdChain: list of chains for the load to be generated. 1044 /// Ld: load to widen 1045 SDValue GenWidenVectorLoads(SmallVectorImpl<SDValue> &LdChain, 1046 LoadSDNode *LD); 1047 1048 /// Helper function to generate a set of extension loads to load a vector with 1049 /// a resulting wider type. It takes: 1050 /// LdChain: list of chains for the load to be generated. 1051 /// Ld: load to widen 1052 /// ExtType: extension element type 1053 SDValue GenWidenVectorExtLoads(SmallVectorImpl<SDValue> &LdChain, 1054 LoadSDNode *LD, ISD::LoadExtType ExtType); 1055 1056 /// Helper function to generate a set of stores to store a widen vector into 1057 /// non-widen memory. Returns true if successful, false otherwise. 1058 /// StChain: list of chains for the stores we have generated 1059 /// ST: store of a widen value 1060 bool GenWidenVectorStores(SmallVectorImpl<SDValue> &StChain, StoreSDNode *ST); 1061 1062 /// Modifies a vector input (widen or narrows) to a vector of NVT. The 1063 /// input vector must have the same element type as NVT. 1064 /// When FillWithZeroes is "on" the vector will be widened with zeroes. 1065 /// By default, the vector will be widened with undefined values. 1066 SDValue ModifyToType(SDValue InOp, EVT NVT, bool FillWithZeroes = false); 1067 1068 /// Return a mask of vector type MaskVT to replace InMask. Also adjust 1069 /// MaskVT to ToMaskVT if needed with vector extension or truncation. 1070 SDValue convertMask(SDValue InMask, EVT MaskVT, EVT ToMaskVT); 1071 1072 //===--------------------------------------------------------------------===// 1073 // Generic Splitting: LegalizeTypesGeneric.cpp 1074 //===--------------------------------------------------------------------===// 1075 1076 // Legalization methods which only use that the illegal type is split into two 1077 // not necessarily identical types. As such they can be used for splitting 1078 // vectors and expanding integers and floats. 1079 GetSplitOp(SDValue Op,SDValue & Lo,SDValue & Hi)1080 void GetSplitOp(SDValue Op, SDValue &Lo, SDValue &Hi) { 1081 if (Op.getValueType().isVector()) 1082 GetSplitVector(Op, Lo, Hi); 1083 else if (Op.getValueType().isInteger()) 1084 GetExpandedInteger(Op, Lo, Hi); 1085 else 1086 GetExpandedFloat(Op, Lo, Hi); 1087 } 1088 1089 /// Use ISD::EXTRACT_ELEMENT nodes to extract the low and high parts of the 1090 /// given value. 1091 void GetPairElements(SDValue Pair, SDValue &Lo, SDValue &Hi); 1092 1093 // Generic Result Splitting. 1094 void SplitRes_MERGE_VALUES(SDNode *N, unsigned ResNo, 1095 SDValue &Lo, SDValue &Hi); 1096 void SplitVecRes_AssertZext (SDNode *N, SDValue &Lo, SDValue &Hi); 1097 void SplitRes_ARITH_FENCE (SDNode *N, SDValue &Lo, SDValue &Hi); 1098 void SplitRes_Select (SDNode *N, SDValue &Lo, SDValue &Hi); 1099 void SplitRes_SELECT_CC (SDNode *N, SDValue &Lo, SDValue &Hi); 1100 void SplitRes_UNDEF (SDNode *N, SDValue &Lo, SDValue &Hi); 1101 void SplitRes_FREEZE (SDNode *N, SDValue &Lo, SDValue &Hi); 1102 1103 //===--------------------------------------------------------------------===// 1104 // Generic Expansion: LegalizeTypesGeneric.cpp 1105 //===--------------------------------------------------------------------===// 1106 1107 // Legalization methods which only use that the illegal type is split into two 1108 // identical types of half the size, and that the Lo/Hi part is stored first 1109 // in memory on little/big-endian machines, followed by the Hi/Lo part. As 1110 // such they can be used for expanding integers and floats. 1111 GetExpandedOp(SDValue Op,SDValue & Lo,SDValue & Hi)1112 void GetExpandedOp(SDValue Op, SDValue &Lo, SDValue &Hi) { 1113 if (Op.getValueType().isInteger()) 1114 GetExpandedInteger(Op, Lo, Hi); 1115 else 1116 GetExpandedFloat(Op, Lo, Hi); 1117 } 1118 1119 1120 /// This function will split the integer \p Op into \p NumElements 1121 /// operations of type \p EltVT and store them in \p Ops. 1122 void IntegerToVector(SDValue Op, unsigned NumElements, 1123 SmallVectorImpl<SDValue> &Ops, EVT EltVT); 1124 1125 // Generic Result Expansion. 1126 void ExpandRes_MERGE_VALUES (SDNode *N, unsigned ResNo, 1127 SDValue &Lo, SDValue &Hi); 1128 void ExpandRes_BITCAST (SDNode *N, SDValue &Lo, SDValue &Hi); 1129 void ExpandRes_BUILD_PAIR (SDNode *N, SDValue &Lo, SDValue &Hi); 1130 void ExpandRes_EXTRACT_ELEMENT (SDNode *N, SDValue &Lo, SDValue &Hi); 1131 void ExpandRes_EXTRACT_VECTOR_ELT(SDNode *N, SDValue &Lo, SDValue &Hi); 1132 void ExpandRes_NormalLoad (SDNode *N, SDValue &Lo, SDValue &Hi); 1133 void ExpandRes_VAARG (SDNode *N, SDValue &Lo, SDValue &Hi); 1134 1135 // Generic Operand Expansion. 1136 SDValue ExpandOp_BITCAST (SDNode *N); 1137 SDValue ExpandOp_BUILD_VECTOR (SDNode *N); 1138 SDValue ExpandOp_EXTRACT_ELEMENT (SDNode *N); 1139 SDValue ExpandOp_INSERT_VECTOR_ELT(SDNode *N); 1140 SDValue ExpandOp_SCALAR_TO_VECTOR (SDNode *N); 1141 SDValue ExpandOp_NormalStore (SDNode *N, unsigned OpNo); 1142 }; 1143 1144 } // end namespace llvm. 1145 1146 #endif 1147