1 //===-- LegalizeTypes.h - DAG Type Legalizer class definition ---*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines the DAGTypeLegalizer class. This is a private interface
11 // shared between the code that implements the SelectionDAG::LegalizeTypes
14 //===----------------------------------------------------------------------===//
16 #ifndef LLVM_LIB_CODEGEN_SELECTIONDAG_LEGALIZETYPES_H
17 #define LLVM_LIB_CODEGEN_SELECTIONDAG_LEGALIZETYPES_H
19 #include "llvm/ADT/DenseMap.h"
20 #include "llvm/ADT/DenseSet.h"
21 #include "llvm/CodeGen/SelectionDAG.h"
22 #include "llvm/Support/Compiler.h"
23 #include "llvm/Support/Debug.h"
24 #include "llvm/Target/TargetLowering.h"
28 //===----------------------------------------------------------------------===//
29 /// DAGTypeLegalizer - This takes an arbitrary SelectionDAG as input and hacks
30 /// on it until only value types the target machine can handle are left. This
31 /// involves promoting small sizes to large sizes or splitting up large values
32 /// into small values.
34 class LLVM_LIBRARY_VISIBILITY DAGTypeLegalizer {
35 const TargetLowering &TLI;
38 // NodeIdFlags - This pass uses the NodeId on the SDNodes to hold information
39 // about the state of the node. The enum has all the values.
41 /// ReadyToProcess - All operands have been processed, so this node is ready
45 /// NewNode - This is a new node, not before seen, that was created in the
46 /// process of legalizing some other node.
49 /// Unanalyzed - This node's ID needs to be set to the number of its
50 /// unprocessed operands.
53 /// Processed - This is a node that has already been processed.
56 // 1+ - This is a node which has this many unprocessed operands.
60 /// ValueTypeActions - This is a bitvector that contains two bits for each
61 /// simple value type, where the two bits correspond to the LegalizeAction
62 /// enum from TargetLowering. This can be queried with "getTypeAction(VT)".
63 TargetLowering::ValueTypeActionImpl ValueTypeActions;
65 /// getTypeAction - Return how we should legalize values of this type.
66 TargetLowering::LegalizeTypeAction getTypeAction(EVT VT) const {
67 return TLI.getTypeAction(*DAG.getContext(), VT);
70 /// isTypeLegal - Return true if this type is legal on this target.
71 bool isTypeLegal(EVT VT) const {
72 return TLI.getTypeAction(*DAG.getContext(), VT) == TargetLowering::TypeLegal;
75 EVT getSetCCResultType(EVT VT) const {
76 return TLI.getSetCCResultType(DAG.getDataLayout(), *DAG.getContext(), VT);
79 /// IgnoreNodeResults - Pretend all of this node's results are legal.
80 bool IgnoreNodeResults(SDNode *N) const {
81 return N->getOpcode() == ISD::TargetConstant;
84 /// PromotedIntegers - For integer nodes that are below legal width, this map
85 /// indicates what promoted value to use.
86 SmallDenseMap<SDValue, SDValue, 8> PromotedIntegers;
88 /// ExpandedIntegers - For integer nodes that need to be expanded this map
89 /// indicates which operands are the expanded version of the input.
90 SmallDenseMap<SDValue, std::pair<SDValue, SDValue>, 8> ExpandedIntegers;
92 /// SoftenedFloats - For floating point nodes converted to integers of
93 /// the same size, this map indicates the converted value to use.
94 SmallDenseMap<SDValue, SDValue, 8> SoftenedFloats;
96 /// PromotedFloats - For floating point nodes that have a smaller precision
97 /// than the smallest supported precision, this map indicates what promoted
99 SmallDenseMap<SDValue, SDValue, 8> PromotedFloats;
101 /// ExpandedFloats - For float nodes that need to be expanded this map
102 /// indicates which operands are the expanded version of the input.
103 SmallDenseMap<SDValue, std::pair<SDValue, SDValue>, 8> ExpandedFloats;
105 /// ScalarizedVectors - For nodes that are <1 x ty>, this map indicates the
106 /// scalar value of type 'ty' to use.
107 SmallDenseMap<SDValue, SDValue, 8> ScalarizedVectors;
109 /// SplitVectors - For nodes that need to be split this map indicates
110 /// which operands are the expanded version of the input.
111 SmallDenseMap<SDValue, std::pair<SDValue, SDValue>, 8> SplitVectors;
113 /// WidenedVectors - For vector nodes that need to be widened, indicates
114 /// the widened value to use.
115 SmallDenseMap<SDValue, SDValue, 8> WidenedVectors;
117 /// ReplacedValues - For values that have been replaced with another,
118 /// indicates the replacement value to use.
119 SmallDenseMap<SDValue, SDValue, 8> ReplacedValues;
121 /// Worklist - This defines a worklist of nodes to process. In order to be
122 /// pushed onto this worklist, all operands of a node must have already been
124 SmallVector<SDNode*, 128> Worklist;
127 explicit DAGTypeLegalizer(SelectionDAG &dag)
128 : TLI(dag.getTargetLoweringInfo()), DAG(dag),
129 ValueTypeActions(TLI.getValueTypeActions()) {
130 static_assert(MVT::LAST_VALUETYPE <= MVT::MAX_ALLOWED_VALUETYPE,
131 "Too many value types for ValueTypeActions to hold!");
134 /// run - This is the main entry point for the type legalizer. This does a
135 /// top-down traversal of the dag, legalizing types as it goes. Returns
136 /// "true" if it made any changes.
139 void NoteDeletion(SDNode *Old, SDNode *New) {
142 for (unsigned i = 0, e = Old->getNumValues(); i != e; ++i)
143 ReplacedValues[SDValue(Old, i)] = SDValue(New, i);
146 SelectionDAG &getDAG() const { return DAG; }
149 SDNode *AnalyzeNewNode(SDNode *N);
150 void AnalyzeNewValue(SDValue &Val);
151 void ExpungeNode(SDNode *N);
152 void PerformExpensiveChecks();
153 void RemapValue(SDValue &N);
156 SDValue BitConvertToInteger(SDValue Op);
157 SDValue BitConvertVectorToIntegerVector(SDValue Op);
158 SDValue CreateStackStoreLoad(SDValue Op, EVT DestVT);
159 bool CustomLowerNode(SDNode *N, EVT VT, bool LegalizeResult);
160 bool CustomWidenLowerNode(SDNode *N, EVT VT);
162 /// DisintegrateMERGE_VALUES - Replace each result of the given MERGE_VALUES
163 /// node with the corresponding input operand, except for the result 'ResNo',
164 /// for which the corresponding input operand is returned.
165 SDValue DisintegrateMERGE_VALUES(SDNode *N, unsigned ResNo);
167 SDValue GetVectorElementPointer(SDValue VecPtr, EVT EltVT, SDValue Index);
168 SDValue JoinIntegers(SDValue Lo, SDValue Hi);
169 SDValue LibCallify(RTLIB::Libcall LC, SDNode *N, bool isSigned);
171 std::pair<SDValue, SDValue> ExpandChainLibCall(RTLIB::Libcall LC,
172 SDNode *Node, bool isSigned);
173 std::pair<SDValue, SDValue> ExpandAtomic(SDNode *Node);
175 SDValue PromoteTargetBoolean(SDValue Bool, EVT ValVT);
176 void ReplaceValueWith(SDValue From, SDValue To);
177 void SplitInteger(SDValue Op, SDValue &Lo, SDValue &Hi);
178 void SplitInteger(SDValue Op, EVT LoVT, EVT HiVT,
179 SDValue &Lo, SDValue &Hi);
181 //===--------------------------------------------------------------------===//
182 // Integer Promotion Support: LegalizeIntegerTypes.cpp
183 //===--------------------------------------------------------------------===//
185 /// GetPromotedInteger - Given a processed operand Op which was promoted to a
186 /// larger integer type, this returns the promoted value. The low bits of the
187 /// promoted value corresponding to the original type are exactly equal to Op.
188 /// The extra bits contain rubbish, so the promoted value may need to be zero-
189 /// or sign-extended from the original type before it is usable (the helpers
190 /// SExtPromotedInteger and ZExtPromotedInteger can do this for you).
191 /// For example, if Op is an i16 and was promoted to an i32, then this method
192 /// returns an i32, the lower 16 bits of which coincide with Op, and the upper
193 /// 16 bits of which contain rubbish.
194 SDValue GetPromotedInteger(SDValue Op) {
195 SDValue &PromotedOp = PromotedIntegers[Op];
196 RemapValue(PromotedOp);
197 assert(PromotedOp.getNode() && "Operand wasn't promoted?");
200 void SetPromotedInteger(SDValue Op, SDValue Result);
202 /// SExtPromotedInteger - Get a promoted operand and sign extend it to the
204 SDValue SExtPromotedInteger(SDValue Op) {
205 EVT OldVT = Op.getValueType();
207 Op = GetPromotedInteger(Op);
208 return DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Op.getValueType(), Op,
209 DAG.getValueType(OldVT));
212 /// ZExtPromotedInteger - Get a promoted operand and zero extend it to the
214 SDValue ZExtPromotedInteger(SDValue Op) {
215 EVT OldVT = Op.getValueType();
217 Op = GetPromotedInteger(Op);
218 return DAG.getZeroExtendInReg(Op, dl, OldVT.getScalarType());
221 // Integer Result Promotion.
222 void PromoteIntegerResult(SDNode *N, unsigned ResNo);
223 SDValue PromoteIntRes_MERGE_VALUES(SDNode *N, unsigned ResNo);
224 SDValue PromoteIntRes_AssertSext(SDNode *N);
225 SDValue PromoteIntRes_AssertZext(SDNode *N);
226 SDValue PromoteIntRes_Atomic0(AtomicSDNode *N);
227 SDValue PromoteIntRes_Atomic1(AtomicSDNode *N);
228 SDValue PromoteIntRes_AtomicCmpSwap(AtomicSDNode *N, unsigned ResNo);
229 SDValue PromoteIntRes_EXTRACT_SUBVECTOR(SDNode *N);
230 SDValue PromoteIntRes_VECTOR_SHUFFLE(SDNode *N);
231 SDValue PromoteIntRes_BUILD_VECTOR(SDNode *N);
232 SDValue PromoteIntRes_SCALAR_TO_VECTOR(SDNode *N);
233 SDValue PromoteIntRes_INSERT_VECTOR_ELT(SDNode *N);
234 SDValue PromoteIntRes_CONCAT_VECTORS(SDNode *N);
235 SDValue PromoteIntRes_BITCAST(SDNode *N);
236 SDValue PromoteIntRes_BSWAP(SDNode *N);
237 SDValue PromoteIntRes_BUILD_PAIR(SDNode *N);
238 SDValue PromoteIntRes_Constant(SDNode *N);
239 SDValue PromoteIntRes_CONVERT_RNDSAT(SDNode *N);
240 SDValue PromoteIntRes_CTLZ(SDNode *N);
241 SDValue PromoteIntRes_CTPOP(SDNode *N);
242 SDValue PromoteIntRes_CTTZ(SDNode *N);
243 SDValue PromoteIntRes_EXTRACT_VECTOR_ELT(SDNode *N);
244 SDValue PromoteIntRes_FP_TO_XINT(SDNode *N);
245 SDValue PromoteIntRes_FP_TO_FP16(SDNode *N);
246 SDValue PromoteIntRes_INT_EXTEND(SDNode *N);
247 SDValue PromoteIntRes_LOAD(LoadSDNode *N);
248 SDValue PromoteIntRes_MLOAD(MaskedLoadSDNode *N);
249 SDValue PromoteIntRes_Overflow(SDNode *N);
250 SDValue PromoteIntRes_SADDSUBO(SDNode *N, unsigned ResNo);
251 SDValue PromoteIntRes_SDIV(SDNode *N);
252 SDValue PromoteIntRes_SELECT(SDNode *N);
253 SDValue PromoteIntRes_VSELECT(SDNode *N);
254 SDValue PromoteIntRes_SELECT_CC(SDNode *N);
255 SDValue PromoteIntRes_SETCC(SDNode *N);
256 SDValue PromoteIntRes_SHL(SDNode *N);
257 SDValue PromoteIntRes_SimpleIntBinOp(SDNode *N);
258 SDValue PromoteIntRes_SIGN_EXTEND_INREG(SDNode *N);
259 SDValue PromoteIntRes_SRA(SDNode *N);
260 SDValue PromoteIntRes_SRL(SDNode *N);
261 SDValue PromoteIntRes_TRUNCATE(SDNode *N);
262 SDValue PromoteIntRes_UADDSUBO(SDNode *N, unsigned ResNo);
263 SDValue PromoteIntRes_UDIV(SDNode *N);
264 SDValue PromoteIntRes_UNDEF(SDNode *N);
265 SDValue PromoteIntRes_VAARG(SDNode *N);
266 SDValue PromoteIntRes_XMULO(SDNode *N, unsigned ResNo);
268 // Integer Operand Promotion.
269 bool PromoteIntegerOperand(SDNode *N, unsigned OperandNo);
270 SDValue PromoteIntOp_ANY_EXTEND(SDNode *N);
271 SDValue PromoteIntOp_ATOMIC_STORE(AtomicSDNode *N);
272 SDValue PromoteIntOp_BITCAST(SDNode *N);
273 SDValue PromoteIntOp_BUILD_PAIR(SDNode *N);
274 SDValue PromoteIntOp_BR_CC(SDNode *N, unsigned OpNo);
275 SDValue PromoteIntOp_BRCOND(SDNode *N, unsigned OpNo);
276 SDValue PromoteIntOp_BUILD_VECTOR(SDNode *N);
277 SDValue PromoteIntOp_CONVERT_RNDSAT(SDNode *N);
278 SDValue PromoteIntOp_INSERT_VECTOR_ELT(SDNode *N, unsigned OpNo);
279 SDValue PromoteIntOp_EXTRACT_ELEMENT(SDNode *N);
280 SDValue PromoteIntOp_EXTRACT_VECTOR_ELT(SDNode *N);
281 SDValue PromoteIntOp_EXTRACT_SUBVECTOR(SDNode *N);
282 SDValue PromoteIntOp_CONCAT_VECTORS(SDNode *N);
283 SDValue PromoteIntOp_SCALAR_TO_VECTOR(SDNode *N);
284 SDValue PromoteIntOp_SELECT(SDNode *N, unsigned OpNo);
285 SDValue PromoteIntOp_SELECT_CC(SDNode *N, unsigned OpNo);
286 SDValue PromoteIntOp_SETCC(SDNode *N, unsigned OpNo);
287 SDValue PromoteIntOp_VSETCC(SDNode *N, unsigned OpNo);
288 SDValue PromoteIntOp_Shift(SDNode *N);
289 SDValue PromoteIntOp_SIGN_EXTEND(SDNode *N);
290 SDValue PromoteIntOp_SINT_TO_FP(SDNode *N);
291 SDValue PromoteIntOp_STORE(StoreSDNode *N, unsigned OpNo);
292 SDValue PromoteIntOp_TRUNCATE(SDNode *N);
293 SDValue PromoteIntOp_UINT_TO_FP(SDNode *N);
294 SDValue PromoteIntOp_ZERO_EXTEND(SDNode *N);
295 SDValue PromoteIntOp_MSTORE(MaskedStoreSDNode *N, unsigned OpNo);
296 SDValue PromoteIntOp_MLOAD(MaskedLoadSDNode *N, unsigned OpNo);
298 void PromoteSetCCOperands(SDValue &LHS,SDValue &RHS, ISD::CondCode Code);
300 //===--------------------------------------------------------------------===//
301 // Integer Expansion Support: LegalizeIntegerTypes.cpp
302 //===--------------------------------------------------------------------===//
304 /// GetExpandedInteger - Given a processed operand Op which was expanded into
305 /// two integers of half the size, this returns the two halves. The low bits
306 /// of Op are exactly equal to the bits of Lo; the high bits exactly equal Hi.
307 /// For example, if Op is an i64 which was expanded into two i32's, then this
308 /// method returns the two i32's, with Lo being equal to the lower 32 bits of
309 /// Op, and Hi being equal to the upper 32 bits.
310 void GetExpandedInteger(SDValue Op, SDValue &Lo, SDValue &Hi);
311 void SetExpandedInteger(SDValue Op, SDValue Lo, SDValue Hi);
313 // Integer Result Expansion.
314 void ExpandIntegerResult(SDNode *N, unsigned ResNo);
315 void ExpandIntRes_MERGE_VALUES (SDNode *N, unsigned ResNo,
316 SDValue &Lo, SDValue &Hi);
317 void ExpandIntRes_ANY_EXTEND (SDNode *N, SDValue &Lo, SDValue &Hi);
318 void ExpandIntRes_AssertSext (SDNode *N, SDValue &Lo, SDValue &Hi);
319 void ExpandIntRes_AssertZext (SDNode *N, SDValue &Lo, SDValue &Hi);
320 void ExpandIntRes_Constant (SDNode *N, SDValue &Lo, SDValue &Hi);
321 void ExpandIntRes_CTLZ (SDNode *N, SDValue &Lo, SDValue &Hi);
322 void ExpandIntRes_CTPOP (SDNode *N, SDValue &Lo, SDValue &Hi);
323 void ExpandIntRes_CTTZ (SDNode *N, SDValue &Lo, SDValue &Hi);
324 void ExpandIntRes_LOAD (LoadSDNode *N, SDValue &Lo, SDValue &Hi);
325 void ExpandIntRes_READCYCLECOUNTER (SDNode *N, SDValue &Lo, SDValue &Hi);
326 void ExpandIntRes_SIGN_EXTEND (SDNode *N, SDValue &Lo, SDValue &Hi);
327 void ExpandIntRes_SIGN_EXTEND_INREG (SDNode *N, SDValue &Lo, SDValue &Hi);
328 void ExpandIntRes_TRUNCATE (SDNode *N, SDValue &Lo, SDValue &Hi);
329 void ExpandIntRes_ZERO_EXTEND (SDNode *N, SDValue &Lo, SDValue &Hi);
330 void ExpandIntRes_FP_TO_SINT (SDNode *N, SDValue &Lo, SDValue &Hi);
331 void ExpandIntRes_FP_TO_UINT (SDNode *N, SDValue &Lo, SDValue &Hi);
333 void ExpandIntRes_Logical (SDNode *N, SDValue &Lo, SDValue &Hi);
334 void ExpandIntRes_ADDSUB (SDNode *N, SDValue &Lo, SDValue &Hi);
335 void ExpandIntRes_ADDSUBC (SDNode *N, SDValue &Lo, SDValue &Hi);
336 void ExpandIntRes_ADDSUBE (SDNode *N, SDValue &Lo, SDValue &Hi);
337 void ExpandIntRes_BSWAP (SDNode *N, SDValue &Lo, SDValue &Hi);
338 void ExpandIntRes_MUL (SDNode *N, SDValue &Lo, SDValue &Hi);
339 void ExpandIntRes_SDIV (SDNode *N, SDValue &Lo, SDValue &Hi);
340 void ExpandIntRes_SREM (SDNode *N, SDValue &Lo, SDValue &Hi);
341 void ExpandIntRes_UDIV (SDNode *N, SDValue &Lo, SDValue &Hi);
342 void ExpandIntRes_UREM (SDNode *N, SDValue &Lo, SDValue &Hi);
343 void ExpandIntRes_Shift (SDNode *N, SDValue &Lo, SDValue &Hi);
345 void ExpandIntRes_SADDSUBO (SDNode *N, SDValue &Lo, SDValue &Hi);
346 void ExpandIntRes_UADDSUBO (SDNode *N, SDValue &Lo, SDValue &Hi);
347 void ExpandIntRes_XMULO (SDNode *N, SDValue &Lo, SDValue &Hi);
349 void ExpandIntRes_ATOMIC_LOAD (SDNode *N, SDValue &Lo, SDValue &Hi);
351 void ExpandShiftByConstant(SDNode *N, const APInt &Amt,
352 SDValue &Lo, SDValue &Hi);
353 bool ExpandShiftWithKnownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi);
354 bool ExpandShiftWithUnknownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi);
356 // Integer Operand Expansion.
357 bool ExpandIntegerOperand(SDNode *N, unsigned OperandNo);
358 SDValue ExpandIntOp_BITCAST(SDNode *N);
359 SDValue ExpandIntOp_BR_CC(SDNode *N);
360 SDValue ExpandIntOp_BUILD_VECTOR(SDNode *N);
361 SDValue ExpandIntOp_EXTRACT_ELEMENT(SDNode *N);
362 SDValue ExpandIntOp_SELECT_CC(SDNode *N);
363 SDValue ExpandIntOp_SETCC(SDNode *N);
364 SDValue ExpandIntOp_Shift(SDNode *N);
365 SDValue ExpandIntOp_SINT_TO_FP(SDNode *N);
366 SDValue ExpandIntOp_STORE(StoreSDNode *N, unsigned OpNo);
367 SDValue ExpandIntOp_TRUNCATE(SDNode *N);
368 SDValue ExpandIntOp_UINT_TO_FP(SDNode *N);
369 SDValue ExpandIntOp_RETURNADDR(SDNode *N);
370 SDValue ExpandIntOp_ATOMIC_STORE(SDNode *N);
372 void IntegerExpandSetCCOperands(SDValue &NewLHS, SDValue &NewRHS,
373 ISD::CondCode &CCCode, SDLoc dl);
375 //===--------------------------------------------------------------------===//
376 // Float to Integer Conversion Support: LegalizeFloatTypes.cpp
377 //===--------------------------------------------------------------------===//
379 /// GetSoftenedFloat - Given a processed operand Op which was converted to an
380 /// integer of the same size, this returns the integer. The integer contains
381 /// exactly the same bits as Op - only the type changed. For example, if Op
382 /// is an f32 which was softened to an i32, then this method returns an i32,
383 /// the bits of which coincide with those of Op.
384 SDValue GetSoftenedFloat(SDValue Op) {
385 SDValue &SoftenedOp = SoftenedFloats[Op];
386 RemapValue(SoftenedOp);
387 assert(SoftenedOp.getNode() && "Operand wasn't converted to integer?");
390 void SetSoftenedFloat(SDValue Op, SDValue Result);
392 // Result Float to Integer Conversion.
393 void SoftenFloatResult(SDNode *N, unsigned OpNo);
394 SDValue SoftenFloatRes_MERGE_VALUES(SDNode *N, unsigned ResNo);
395 SDValue SoftenFloatRes_BITCAST(SDNode *N);
396 SDValue SoftenFloatRes_BUILD_PAIR(SDNode *N);
397 SDValue SoftenFloatRes_ConstantFP(ConstantFPSDNode *N);
398 SDValue SoftenFloatRes_EXTRACT_VECTOR_ELT(SDNode *N);
399 SDValue SoftenFloatRes_FABS(SDNode *N);
400 SDValue SoftenFloatRes_FMINNUM(SDNode *N);
401 SDValue SoftenFloatRes_FMAXNUM(SDNode *N);
402 SDValue SoftenFloatRes_FADD(SDNode *N);
403 SDValue SoftenFloatRes_FCEIL(SDNode *N);
404 SDValue SoftenFloatRes_FCOPYSIGN(SDNode *N);
405 SDValue SoftenFloatRes_FCOS(SDNode *N);
406 SDValue SoftenFloatRes_FDIV(SDNode *N);
407 SDValue SoftenFloatRes_FEXP(SDNode *N);
408 SDValue SoftenFloatRes_FEXP2(SDNode *N);
409 SDValue SoftenFloatRes_FFLOOR(SDNode *N);
410 SDValue SoftenFloatRes_FLOG(SDNode *N);
411 SDValue SoftenFloatRes_FLOG2(SDNode *N);
412 SDValue SoftenFloatRes_FLOG10(SDNode *N);
413 SDValue SoftenFloatRes_FMA(SDNode *N);
414 SDValue SoftenFloatRes_FMUL(SDNode *N);
415 SDValue SoftenFloatRes_FNEARBYINT(SDNode *N);
416 SDValue SoftenFloatRes_FNEG(SDNode *N);
417 SDValue SoftenFloatRes_FP_EXTEND(SDNode *N);
418 SDValue SoftenFloatRes_FP16_TO_FP(SDNode *N);
419 SDValue SoftenFloatRes_FP_ROUND(SDNode *N);
420 SDValue SoftenFloatRes_FPOW(SDNode *N);
421 SDValue SoftenFloatRes_FPOWI(SDNode *N);
422 SDValue SoftenFloatRes_FREM(SDNode *N);
423 SDValue SoftenFloatRes_FRINT(SDNode *N);
424 SDValue SoftenFloatRes_FROUND(SDNode *N);
425 SDValue SoftenFloatRes_FSIN(SDNode *N);
426 SDValue SoftenFloatRes_FSQRT(SDNode *N);
427 SDValue SoftenFloatRes_FSUB(SDNode *N);
428 SDValue SoftenFloatRes_FTRUNC(SDNode *N);
429 SDValue SoftenFloatRes_LOAD(SDNode *N);
430 SDValue SoftenFloatRes_SELECT(SDNode *N);
431 SDValue SoftenFloatRes_SELECT_CC(SDNode *N);
432 SDValue SoftenFloatRes_UNDEF(SDNode *N);
433 SDValue SoftenFloatRes_VAARG(SDNode *N);
434 SDValue SoftenFloatRes_XINT_TO_FP(SDNode *N);
436 // Operand Float to Integer Conversion.
437 bool SoftenFloatOperand(SDNode *N, unsigned OpNo);
438 SDValue SoftenFloatOp_BITCAST(SDNode *N);
439 SDValue SoftenFloatOp_BR_CC(SDNode *N);
440 SDValue SoftenFloatOp_FP_EXTEND(SDNode *N);
441 SDValue SoftenFloatOp_FP_ROUND(SDNode *N);
442 SDValue SoftenFloatOp_FP_TO_SINT(SDNode *N);
443 SDValue SoftenFloatOp_FP_TO_UINT(SDNode *N);
444 SDValue SoftenFloatOp_SELECT_CC(SDNode *N);
445 SDValue SoftenFloatOp_SETCC(SDNode *N);
446 SDValue SoftenFloatOp_STORE(SDNode *N, unsigned OpNo);
448 //===--------------------------------------------------------------------===//
449 // Float Expansion Support: LegalizeFloatTypes.cpp
450 //===--------------------------------------------------------------------===//
452 /// GetExpandedFloat - Given a processed operand Op which was expanded into
453 /// two floating point values of half the size, this returns the two halves.
454 /// The low bits of Op are exactly equal to the bits of Lo; the high bits
455 /// exactly equal Hi. For example, if Op is a ppcf128 which was expanded
456 /// into two f64's, then this method returns the two f64's, with Lo being
457 /// equal to the lower 64 bits of Op, and Hi to the upper 64 bits.
458 void GetExpandedFloat(SDValue Op, SDValue &Lo, SDValue &Hi);
459 void SetExpandedFloat(SDValue Op, SDValue Lo, SDValue Hi);
461 // Float Result Expansion.
462 void ExpandFloatResult(SDNode *N, unsigned ResNo);
463 void ExpandFloatRes_ConstantFP(SDNode *N, SDValue &Lo, SDValue &Hi);
464 void ExpandFloatRes_FABS (SDNode *N, SDValue &Lo, SDValue &Hi);
465 void ExpandFloatRes_FMINNUM (SDNode *N, SDValue &Lo, SDValue &Hi);
466 void ExpandFloatRes_FMAXNUM (SDNode *N, SDValue &Lo, SDValue &Hi);
467 void ExpandFloatRes_FADD (SDNode *N, SDValue &Lo, SDValue &Hi);
468 void ExpandFloatRes_FCEIL (SDNode *N, SDValue &Lo, SDValue &Hi);
469 void ExpandFloatRes_FCOPYSIGN (SDNode *N, SDValue &Lo, SDValue &Hi);
470 void ExpandFloatRes_FCOS (SDNode *N, SDValue &Lo, SDValue &Hi);
471 void ExpandFloatRes_FDIV (SDNode *N, SDValue &Lo, SDValue &Hi);
472 void ExpandFloatRes_FEXP (SDNode *N, SDValue &Lo, SDValue &Hi);
473 void ExpandFloatRes_FEXP2 (SDNode *N, SDValue &Lo, SDValue &Hi);
474 void ExpandFloatRes_FFLOOR (SDNode *N, SDValue &Lo, SDValue &Hi);
475 void ExpandFloatRes_FLOG (SDNode *N, SDValue &Lo, SDValue &Hi);
476 void ExpandFloatRes_FLOG2 (SDNode *N, SDValue &Lo, SDValue &Hi);
477 void ExpandFloatRes_FLOG10 (SDNode *N, SDValue &Lo, SDValue &Hi);
478 void ExpandFloatRes_FMA (SDNode *N, SDValue &Lo, SDValue &Hi);
479 void ExpandFloatRes_FMUL (SDNode *N, SDValue &Lo, SDValue &Hi);
480 void ExpandFloatRes_FNEARBYINT(SDNode *N, SDValue &Lo, SDValue &Hi);
481 void ExpandFloatRes_FNEG (SDNode *N, SDValue &Lo, SDValue &Hi);
482 void ExpandFloatRes_FP_EXTEND (SDNode *N, SDValue &Lo, SDValue &Hi);
483 void ExpandFloatRes_FPOW (SDNode *N, SDValue &Lo, SDValue &Hi);
484 void ExpandFloatRes_FPOWI (SDNode *N, SDValue &Lo, SDValue &Hi);
485 void ExpandFloatRes_FREM (SDNode *N, SDValue &Lo, SDValue &Hi);
486 void ExpandFloatRes_FRINT (SDNode *N, SDValue &Lo, SDValue &Hi);
487 void ExpandFloatRes_FROUND (SDNode *N, SDValue &Lo, SDValue &Hi);
488 void ExpandFloatRes_FSIN (SDNode *N, SDValue &Lo, SDValue &Hi);
489 void ExpandFloatRes_FSQRT (SDNode *N, SDValue &Lo, SDValue &Hi);
490 void ExpandFloatRes_FSUB (SDNode *N, SDValue &Lo, SDValue &Hi);
491 void ExpandFloatRes_FTRUNC (SDNode *N, SDValue &Lo, SDValue &Hi);
492 void ExpandFloatRes_LOAD (SDNode *N, SDValue &Lo, SDValue &Hi);
493 void ExpandFloatRes_XINT_TO_FP(SDNode *N, SDValue &Lo, SDValue &Hi);
495 // Float Operand Expansion.
496 bool ExpandFloatOperand(SDNode *N, unsigned OperandNo);
497 SDValue ExpandFloatOp_BR_CC(SDNode *N);
498 SDValue ExpandFloatOp_FCOPYSIGN(SDNode *N);
499 SDValue ExpandFloatOp_FP_ROUND(SDNode *N);
500 SDValue ExpandFloatOp_FP_TO_SINT(SDNode *N);
501 SDValue ExpandFloatOp_FP_TO_UINT(SDNode *N);
502 SDValue ExpandFloatOp_SELECT_CC(SDNode *N);
503 SDValue ExpandFloatOp_SETCC(SDNode *N);
504 SDValue ExpandFloatOp_STORE(SDNode *N, unsigned OpNo);
506 void FloatExpandSetCCOperands(SDValue &NewLHS, SDValue &NewRHS,
507 ISD::CondCode &CCCode, SDLoc dl);
510 //===--------------------------------------------------------------------===//
511 // Float promotion support: LegalizeFloatTypes.cpp
512 //===--------------------------------------------------------------------===//
514 SDValue GetPromotedFloat(SDValue Op) {
515 SDValue &PromotedOp = PromotedFloats[Op];
516 RemapValue(PromotedOp);
517 assert(PromotedOp.getNode() && "Operand wasn't promoted?");
520 void SetPromotedFloat(SDValue Op, SDValue Result);
522 void PromoteFloatResult(SDNode *N, unsigned ResNo);
523 SDValue PromoteFloatRes_BITCAST(SDNode *N);
524 SDValue PromoteFloatRes_BinOp(SDNode *N);
525 SDValue PromoteFloatRes_ConstantFP(SDNode *N);
526 SDValue PromoteFloatRes_EXTRACT_VECTOR_ELT(SDNode *N);
527 SDValue PromoteFloatRes_FCOPYSIGN(SDNode *N);
528 SDValue PromoteFloatRes_FMAD(SDNode *N);
529 SDValue PromoteFloatRes_FPOWI(SDNode *N);
530 SDValue PromoteFloatRes_FP_ROUND(SDNode *N);
531 SDValue PromoteFloatRes_LOAD(SDNode *N);
532 SDValue PromoteFloatRes_SELECT(SDNode *N);
533 SDValue PromoteFloatRes_SELECT_CC(SDNode *N);
534 SDValue PromoteFloatRes_UnaryOp(SDNode *N);
535 SDValue PromoteFloatRes_UNDEF(SDNode *N);
536 SDValue PromoteFloatRes_XINT_TO_FP(SDNode *N);
538 bool PromoteFloatOperand(SDNode *N, unsigned ResNo);
539 SDValue PromoteFloatOp_BITCAST(SDNode *N, unsigned OpNo);
540 SDValue PromoteFloatOp_FCOPYSIGN(SDNode *N, unsigned OpNo);
541 SDValue PromoteFloatOp_FP_EXTEND(SDNode *N, unsigned OpNo);
542 SDValue PromoteFloatOp_FP_TO_XINT(SDNode *N, unsigned OpNo);
543 SDValue PromoteFloatOp_STORE(SDNode *N, unsigned OpNo);
544 SDValue PromoteFloatOp_SELECT_CC(SDNode *N, unsigned OpNo);
545 SDValue PromoteFloatOp_SETCC(SDNode *N, unsigned OpNo);
547 //===--------------------------------------------------------------------===//
548 // Scalarization Support: LegalizeVectorTypes.cpp
549 //===--------------------------------------------------------------------===//
551 /// GetScalarizedVector - Given a processed one-element vector Op which was
552 /// scalarized to its element type, this returns the element. For example,
553 /// if Op is a v1i32, Op = < i32 val >, this method returns val, an i32.
554 SDValue GetScalarizedVector(SDValue Op) {
555 SDValue &ScalarizedOp = ScalarizedVectors[Op];
556 RemapValue(ScalarizedOp);
557 assert(ScalarizedOp.getNode() && "Operand wasn't scalarized?");
560 void SetScalarizedVector(SDValue Op, SDValue Result);
562 // Vector Result Scalarization: <1 x ty> -> ty.
563 void ScalarizeVectorResult(SDNode *N, unsigned OpNo);
564 SDValue ScalarizeVecRes_MERGE_VALUES(SDNode *N, unsigned ResNo);
565 SDValue ScalarizeVecRes_BinOp(SDNode *N);
566 SDValue ScalarizeVecRes_TernaryOp(SDNode *N);
567 SDValue ScalarizeVecRes_UnaryOp(SDNode *N);
568 SDValue ScalarizeVecRes_InregOp(SDNode *N);
570 SDValue ScalarizeVecRes_BITCAST(SDNode *N);
571 SDValue ScalarizeVecRes_BUILD_VECTOR(SDNode *N);
572 SDValue ScalarizeVecRes_CONVERT_RNDSAT(SDNode *N);
573 SDValue ScalarizeVecRes_EXTRACT_SUBVECTOR(SDNode *N);
574 SDValue ScalarizeVecRes_FP_ROUND(SDNode *N);
575 SDValue ScalarizeVecRes_FPOWI(SDNode *N);
576 SDValue ScalarizeVecRes_INSERT_VECTOR_ELT(SDNode *N);
577 SDValue ScalarizeVecRes_LOAD(LoadSDNode *N);
578 SDValue ScalarizeVecRes_SCALAR_TO_VECTOR(SDNode *N);
579 SDValue ScalarizeVecRes_SIGN_EXTEND_INREG(SDNode *N);
580 SDValue ScalarizeVecRes_VSELECT(SDNode *N);
581 SDValue ScalarizeVecRes_SELECT(SDNode *N);
582 SDValue ScalarizeVecRes_SELECT_CC(SDNode *N);
583 SDValue ScalarizeVecRes_SETCC(SDNode *N);
584 SDValue ScalarizeVecRes_UNDEF(SDNode *N);
585 SDValue ScalarizeVecRes_VECTOR_SHUFFLE(SDNode *N);
586 SDValue ScalarizeVecRes_VSETCC(SDNode *N);
588 // Vector Operand Scalarization: <1 x ty> -> ty.
589 bool ScalarizeVectorOperand(SDNode *N, unsigned OpNo);
590 SDValue ScalarizeVecOp_BITCAST(SDNode *N);
591 SDValue ScalarizeVecOp_UnaryOp(SDNode *N);
592 SDValue ScalarizeVecOp_CONCAT_VECTORS(SDNode *N);
593 SDValue ScalarizeVecOp_EXTRACT_VECTOR_ELT(SDNode *N);
594 SDValue ScalarizeVecOp_VSELECT(SDNode *N);
595 SDValue ScalarizeVecOp_STORE(StoreSDNode *N, unsigned OpNo);
596 SDValue ScalarizeVecOp_FP_ROUND(SDNode *N, unsigned OpNo);
598 //===--------------------------------------------------------------------===//
599 // Vector Splitting Support: LegalizeVectorTypes.cpp
600 //===--------------------------------------------------------------------===//
602 /// GetSplitVector - Given a processed vector Op which was split into vectors
603 /// of half the size, this method returns the halves. The first elements of
604 /// Op coincide with the elements of Lo; the remaining elements of Op coincide
605 /// with the elements of Hi: Op is what you would get by concatenating Lo and
606 /// Hi. For example, if Op is a v8i32 that was split into two v4i32's, then
607 /// this method returns the two v4i32's, with Lo corresponding to the first 4
608 /// elements of Op, and Hi to the last 4 elements.
609 void GetSplitVector(SDValue Op, SDValue &Lo, SDValue &Hi);
610 void SetSplitVector(SDValue Op, SDValue Lo, SDValue Hi);
612 // Vector Result Splitting: <128 x ty> -> 2 x <64 x ty>.
613 void SplitVectorResult(SDNode *N, unsigned OpNo);
614 void SplitVecRes_BinOp(SDNode *N, SDValue &Lo, SDValue &Hi);
615 void SplitVecRes_TernaryOp(SDNode *N, SDValue &Lo, SDValue &Hi);
616 void SplitVecRes_UnaryOp(SDNode *N, SDValue &Lo, SDValue &Hi);
617 void SplitVecRes_ExtendOp(SDNode *N, SDValue &Lo, SDValue &Hi);
618 void SplitVecRes_InregOp(SDNode *N, SDValue &Lo, SDValue &Hi);
620 void SplitVecRes_BITCAST(SDNode *N, SDValue &Lo, SDValue &Hi);
621 void SplitVecRes_BUILD_PAIR(SDNode *N, SDValue &Lo, SDValue &Hi);
622 void SplitVecRes_BUILD_VECTOR(SDNode *N, SDValue &Lo, SDValue &Hi);
623 void SplitVecRes_CONCAT_VECTORS(SDNode *N, SDValue &Lo, SDValue &Hi);
624 void SplitVecRes_EXTRACT_SUBVECTOR(SDNode *N, SDValue &Lo, SDValue &Hi);
625 void SplitVecRes_INSERT_SUBVECTOR(SDNode *N, SDValue &Lo, SDValue &Hi);
626 void SplitVecRes_FPOWI(SDNode *N, SDValue &Lo, SDValue &Hi);
627 void SplitVecRes_FCOPYSIGN(SDNode *N, SDValue &Lo, SDValue &Hi);
628 void SplitVecRes_INSERT_VECTOR_ELT(SDNode *N, SDValue &Lo, SDValue &Hi);
629 void SplitVecRes_LOAD(LoadSDNode *N, SDValue &Lo, SDValue &Hi);
630 void SplitVecRes_MLOAD(MaskedLoadSDNode *N, SDValue &Lo, SDValue &Hi);
631 void SplitVecRes_MGATHER(MaskedGatherSDNode *N, SDValue &Lo, SDValue &Hi);
632 void SplitVecRes_SCALAR_TO_VECTOR(SDNode *N, SDValue &Lo, SDValue &Hi);
633 void SplitVecRes_SIGN_EXTEND_INREG(SDNode *N, SDValue &Lo, SDValue &Hi);
634 void SplitVecRes_SETCC(SDNode *N, SDValue &Lo, SDValue &Hi);
635 void SplitVecRes_UNDEF(SDNode *N, SDValue &Lo, SDValue &Hi);
636 void SplitVecRes_VECTOR_SHUFFLE(ShuffleVectorSDNode *N, SDValue &Lo,
639 // Vector Operand Splitting: <128 x ty> -> 2 x <64 x ty>.
640 bool SplitVectorOperand(SDNode *N, unsigned OpNo);
641 SDValue SplitVecOp_VSELECT(SDNode *N, unsigned OpNo);
642 SDValue SplitVecOp_UnaryOp(SDNode *N);
643 SDValue SplitVecOp_TruncateHelper(SDNode *N);
645 SDValue SplitVecOp_BITCAST(SDNode *N);
646 SDValue SplitVecOp_EXTRACT_SUBVECTOR(SDNode *N);
647 SDValue SplitVecOp_EXTRACT_VECTOR_ELT(SDNode *N);
648 SDValue SplitVecOp_STORE(StoreSDNode *N, unsigned OpNo);
649 SDValue SplitVecOp_MSTORE(MaskedStoreSDNode *N, unsigned OpNo);
650 SDValue SplitVecOp_MSCATTER(MaskedScatterSDNode *N, unsigned OpNo);
651 SDValue SplitVecOp_MGATHER(MaskedGatherSDNode *N, unsigned OpNo);
652 SDValue SplitVecOp_CONCAT_VECTORS(SDNode *N);
653 SDValue SplitVecOp_VSETCC(SDNode *N);
654 SDValue SplitVecOp_FP_ROUND(SDNode *N);
655 SDValue SplitVecOp_FCOPYSIGN(SDNode *N);
657 //===--------------------------------------------------------------------===//
658 // Vector Widening Support: LegalizeVectorTypes.cpp
659 //===--------------------------------------------------------------------===//
661 /// GetWidenedVector - Given a processed vector Op which was widened into a
662 /// larger vector, this method returns the larger vector. The elements of
663 /// the returned vector consist of the elements of Op followed by elements
664 /// containing rubbish. For example, if Op is a v2i32 that was widened to a
665 /// v4i32, then this method returns a v4i32 for which the first two elements
666 /// are the same as those of Op, while the last two elements contain rubbish.
667 SDValue GetWidenedVector(SDValue Op) {
668 SDValue &WidenedOp = WidenedVectors[Op];
669 RemapValue(WidenedOp);
670 assert(WidenedOp.getNode() && "Operand wasn't widened?");
673 void SetWidenedVector(SDValue Op, SDValue Result);
675 // Widen Vector Result Promotion.
676 void WidenVectorResult(SDNode *N, unsigned ResNo);
677 SDValue WidenVecRes_MERGE_VALUES(SDNode* N, unsigned ResNo);
678 SDValue WidenVecRes_BITCAST(SDNode* N);
679 SDValue WidenVecRes_BUILD_VECTOR(SDNode* N);
680 SDValue WidenVecRes_CONCAT_VECTORS(SDNode* N);
681 SDValue WidenVecRes_CONVERT_RNDSAT(SDNode* N);
682 SDValue WidenVecRes_EXTRACT_SUBVECTOR(SDNode* N);
683 SDValue WidenVecRes_INSERT_VECTOR_ELT(SDNode* N);
684 SDValue WidenVecRes_LOAD(SDNode* N);
685 SDValue WidenVecRes_MLOAD(MaskedLoadSDNode* N);
686 SDValue WidenVecRes_SCALAR_TO_VECTOR(SDNode* N);
687 SDValue WidenVecRes_SIGN_EXTEND_INREG(SDNode* N);
688 SDValue WidenVecRes_SELECT(SDNode* N);
689 SDValue WidenVecRes_SELECT_CC(SDNode* N);
690 SDValue WidenVecRes_SETCC(SDNode* N);
691 SDValue WidenVecRes_UNDEF(SDNode *N);
692 SDValue WidenVecRes_VECTOR_SHUFFLE(ShuffleVectorSDNode *N);
693 SDValue WidenVecRes_VSETCC(SDNode* N);
695 SDValue WidenVecRes_Ternary(SDNode *N);
696 SDValue WidenVecRes_Binary(SDNode *N);
697 SDValue WidenVecRes_BinaryCanTrap(SDNode *N);
698 SDValue WidenVecRes_Convert(SDNode *N);
699 SDValue WidenVecRes_FCOPYSIGN(SDNode *N);
700 SDValue WidenVecRes_POWI(SDNode *N);
701 SDValue WidenVecRes_Shift(SDNode *N);
702 SDValue WidenVecRes_Unary(SDNode *N);
703 SDValue WidenVecRes_InregOp(SDNode *N);
705 // Widen Vector Operand.
706 bool WidenVectorOperand(SDNode *N, unsigned OpNo);
707 SDValue WidenVecOp_BITCAST(SDNode *N);
708 SDValue WidenVecOp_CONCAT_VECTORS(SDNode *N);
709 SDValue WidenVecOp_EXTEND(SDNode *N);
710 SDValue WidenVecOp_EXTRACT_VECTOR_ELT(SDNode *N);
711 SDValue WidenVecOp_EXTRACT_SUBVECTOR(SDNode *N);
712 SDValue WidenVecOp_STORE(SDNode* N);
713 SDValue WidenVecOp_MSTORE(SDNode* N, unsigned OpNo);
714 SDValue WidenVecOp_SETCC(SDNode* N);
716 SDValue WidenVecOp_Convert(SDNode *N);
717 SDValue WidenVecOp_FCOPYSIGN(SDNode *N);
719 //===--------------------------------------------------------------------===//
720 // Vector Widening Utilities Support: LegalizeVectorTypes.cpp
721 //===--------------------------------------------------------------------===//
723 /// Helper GenWidenVectorLoads - Helper function to generate a set of
724 /// loads to load a vector with a resulting wider type. It takes
725 /// LdChain: list of chains for the load to be generated.
726 /// Ld: load to widen
727 SDValue GenWidenVectorLoads(SmallVectorImpl<SDValue> &LdChain,
730 /// GenWidenVectorExtLoads - Helper function to generate a set of extension
731 /// loads to load a ector with a resulting wider type. It takes
732 /// LdChain: list of chains for the load to be generated.
733 /// Ld: load to widen
734 /// ExtType: extension element type
735 SDValue GenWidenVectorExtLoads(SmallVectorImpl<SDValue> &LdChain,
736 LoadSDNode *LD, ISD::LoadExtType ExtType);
738 /// Helper genWidenVectorStores - Helper function to generate a set of
739 /// stores to store a widen vector into non-widen memory
740 /// StChain: list of chains for the stores we have generated
741 /// ST: store of a widen value
742 void GenWidenVectorStores(SmallVectorImpl<SDValue> &StChain, StoreSDNode *ST);
744 /// Helper genWidenVectorTruncStores - Helper function to generate a set of
745 /// stores to store a truncate widen vector into non-widen memory
746 /// StChain: list of chains for the stores we have generated
747 /// ST: store of a widen value
748 void GenWidenVectorTruncStores(SmallVectorImpl<SDValue> &StChain,
751 /// Modifies a vector input (widen or narrows) to a vector of NVT. The
752 /// input vector must have the same element type as NVT.
753 SDValue ModifyToType(SDValue InOp, EVT WidenVT);
756 //===--------------------------------------------------------------------===//
757 // Generic Splitting: LegalizeTypesGeneric.cpp
758 //===--------------------------------------------------------------------===//
760 // Legalization methods which only use that the illegal type is split into two
761 // not necessarily identical types. As such they can be used for splitting
762 // vectors and expanding integers and floats.
764 void GetSplitOp(SDValue Op, SDValue &Lo, SDValue &Hi) {
765 if (Op.getValueType().isVector())
766 GetSplitVector(Op, Lo, Hi);
767 else if (Op.getValueType().isInteger())
768 GetExpandedInteger(Op, Lo, Hi);
770 GetExpandedFloat(Op, Lo, Hi);
773 /// GetPairElements - Use ISD::EXTRACT_ELEMENT nodes to extract the low and
774 /// high parts of the given value.
775 void GetPairElements(SDValue Pair, SDValue &Lo, SDValue &Hi);
777 // Generic Result Splitting.
778 void SplitRes_MERGE_VALUES(SDNode *N, unsigned ResNo,
779 SDValue &Lo, SDValue &Hi);
780 void SplitRes_SELECT (SDNode *N, SDValue &Lo, SDValue &Hi);
781 void SplitRes_SELECT_CC (SDNode *N, SDValue &Lo, SDValue &Hi);
782 void SplitRes_UNDEF (SDNode *N, SDValue &Lo, SDValue &Hi);
784 //===--------------------------------------------------------------------===//
785 // Generic Expansion: LegalizeTypesGeneric.cpp
786 //===--------------------------------------------------------------------===//
788 // Legalization methods which only use that the illegal type is split into two
789 // identical types of half the size, and that the Lo/Hi part is stored first
790 // in memory on little/big-endian machines, followed by the Hi/Lo part. As
791 // such they can be used for expanding integers and floats.
793 void GetExpandedOp(SDValue Op, SDValue &Lo, SDValue &Hi) {
794 if (Op.getValueType().isInteger())
795 GetExpandedInteger(Op, Lo, Hi);
797 GetExpandedFloat(Op, Lo, Hi);
801 /// This function will split the integer \p Op into \p NumElements
802 /// operations of type \p EltVT and store them in \p Ops.
803 void IntegerToVector(SDValue Op, unsigned NumElements,
804 SmallVectorImpl<SDValue> &Ops, EVT EltVT);
806 // Generic Result Expansion.
807 void ExpandRes_MERGE_VALUES (SDNode *N, unsigned ResNo,
808 SDValue &Lo, SDValue &Hi);
809 void ExpandRes_BITCAST (SDNode *N, SDValue &Lo, SDValue &Hi);
810 void ExpandRes_BUILD_PAIR (SDNode *N, SDValue &Lo, SDValue &Hi);
811 void ExpandRes_EXTRACT_ELEMENT (SDNode *N, SDValue &Lo, SDValue &Hi);
812 void ExpandRes_EXTRACT_VECTOR_ELT(SDNode *N, SDValue &Lo, SDValue &Hi);
813 void ExpandRes_NormalLoad (SDNode *N, SDValue &Lo, SDValue &Hi);
814 void ExpandRes_VAARG (SDNode *N, SDValue &Lo, SDValue &Hi);
816 // Generic Operand Expansion.
817 SDValue ExpandOp_BITCAST (SDNode *N);
818 SDValue ExpandOp_BUILD_VECTOR (SDNode *N);
819 SDValue ExpandOp_EXTRACT_ELEMENT (SDNode *N);
820 SDValue ExpandOp_INSERT_VECTOR_ELT(SDNode *N);
821 SDValue ExpandOp_SCALAR_TO_VECTOR (SDNode *N);
822 SDValue ExpandOp_NormalStore (SDNode *N, unsigned OpNo);
825 } // end namespace llvm.