1 //===-- MipsSEISelLowering.cpp - MipsSE DAG Lowering Interface --*- 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 // Subclass of MipsTargetLowering specialized for mips32/64.
12 //===----------------------------------------------------------------------===//
13 #define DEBUG_TYPE "mips-isel"
14 #include "MipsSEISelLowering.h"
15 #include "MipsRegisterInfo.h"
16 #include "MipsTargetMachine.h"
17 #include "llvm/CodeGen/MachineInstrBuilder.h"
18 #include "llvm/CodeGen/MachineRegisterInfo.h"
19 #include "llvm/IR/Intrinsics.h"
20 #include "llvm/Support/CommandLine.h"
21 #include "llvm/Support/Debug.h"
22 #include "llvm/Support/raw_ostream.h"
23 #include "llvm/Target/TargetInstrInfo.h"
28 EnableMipsTailCalls("enable-mips-tail-calls", cl::Hidden,
29 cl::desc("MIPS: Enable tail calls."), cl::init(false));
31 static cl::opt<bool> NoDPLoadStore("mno-ldc1-sdc1", cl::init(false),
32 cl::desc("Expand double precision loads and "
33 "stores to their single precision "
36 MipsSETargetLowering::MipsSETargetLowering(MipsTargetMachine &TM)
37 : MipsTargetLowering(TM) {
38 // Set up the register classes
39 addRegisterClass(MVT::i32, &Mips::GPR32RegClass);
42 addRegisterClass(MVT::i64, &Mips::GPR64RegClass);
44 if (Subtarget->hasDSP() || Subtarget->hasMSA()) {
45 // Expand all truncating stores and extending loads.
46 unsigned FirstVT = (unsigned)MVT::FIRST_VECTOR_VALUETYPE;
47 unsigned LastVT = (unsigned)MVT::LAST_VECTOR_VALUETYPE;
49 for (unsigned VT0 = FirstVT; VT0 <= LastVT; ++VT0) {
50 for (unsigned VT1 = FirstVT; VT1 <= LastVT; ++VT1)
51 setTruncStoreAction((MVT::SimpleValueType)VT0,
52 (MVT::SimpleValueType)VT1, Expand);
54 setLoadExtAction(ISD::SEXTLOAD, (MVT::SimpleValueType)VT0, Expand);
55 setLoadExtAction(ISD::ZEXTLOAD, (MVT::SimpleValueType)VT0, Expand);
56 setLoadExtAction(ISD::EXTLOAD, (MVT::SimpleValueType)VT0, Expand);
60 if (Subtarget->hasDSP()) {
61 MVT::SimpleValueType VecTys[2] = {MVT::v2i16, MVT::v4i8};
63 for (unsigned i = 0; i < array_lengthof(VecTys); ++i) {
64 addRegisterClass(VecTys[i], &Mips::DSPRRegClass);
66 // Expand all builtin opcodes.
67 for (unsigned Opc = 0; Opc < ISD::BUILTIN_OP_END; ++Opc)
68 setOperationAction(Opc, VecTys[i], Expand);
70 setOperationAction(ISD::ADD, VecTys[i], Legal);
71 setOperationAction(ISD::SUB, VecTys[i], Legal);
72 setOperationAction(ISD::LOAD, VecTys[i], Legal);
73 setOperationAction(ISD::STORE, VecTys[i], Legal);
74 setOperationAction(ISD::BITCAST, VecTys[i], Legal);
77 setTargetDAGCombine(ISD::SHL);
78 setTargetDAGCombine(ISD::SRA);
79 setTargetDAGCombine(ISD::SRL);
80 setTargetDAGCombine(ISD::SETCC);
81 setTargetDAGCombine(ISD::VSELECT);
84 if (Subtarget->hasDSPR2())
85 setOperationAction(ISD::MUL, MVT::v2i16, Legal);
87 if (Subtarget->hasMSA()) {
88 addMSAIntType(MVT::v16i8, &Mips::MSA128BRegClass);
89 addMSAIntType(MVT::v8i16, &Mips::MSA128HRegClass);
90 addMSAIntType(MVT::v4i32, &Mips::MSA128WRegClass);
91 addMSAIntType(MVT::v2i64, &Mips::MSA128DRegClass);
92 addMSAFloatType(MVT::v8f16, &Mips::MSA128HRegClass);
93 addMSAFloatType(MVT::v4f32, &Mips::MSA128WRegClass);
94 addMSAFloatType(MVT::v2f64, &Mips::MSA128DRegClass);
96 setTargetDAGCombine(ISD::AND);
97 setTargetDAGCombine(ISD::OR);
98 setTargetDAGCombine(ISD::SRA);
99 setTargetDAGCombine(ISD::VSELECT);
100 setTargetDAGCombine(ISD::XOR);
103 if (!Subtarget->mipsSEUsesSoftFloat()) {
104 addRegisterClass(MVT::f32, &Mips::FGR32RegClass);
106 // When dealing with single precision only, use libcalls
107 if (!Subtarget->isSingleFloat()) {
108 if (Subtarget->isFP64bit())
109 addRegisterClass(MVT::f64, &Mips::FGR64RegClass);
111 addRegisterClass(MVT::f64, &Mips::AFGR64RegClass);
115 setOperationAction(ISD::SMUL_LOHI, MVT::i32, Custom);
116 setOperationAction(ISD::UMUL_LOHI, MVT::i32, Custom);
117 setOperationAction(ISD::MULHS, MVT::i32, Custom);
118 setOperationAction(ISD::MULHU, MVT::i32, Custom);
121 setOperationAction(ISD::MULHS, MVT::i64, Custom);
122 setOperationAction(ISD::MULHU, MVT::i64, Custom);
123 setOperationAction(ISD::MUL, MVT::i64, Custom);
126 setOperationAction(ISD::INTRINSIC_WO_CHAIN, MVT::i64, Custom);
127 setOperationAction(ISD::INTRINSIC_W_CHAIN, MVT::i64, Custom);
129 setOperationAction(ISD::SDIVREM, MVT::i32, Custom);
130 setOperationAction(ISD::UDIVREM, MVT::i32, Custom);
131 setOperationAction(ISD::SDIVREM, MVT::i64, Custom);
132 setOperationAction(ISD::UDIVREM, MVT::i64, Custom);
133 setOperationAction(ISD::ATOMIC_FENCE, MVT::Other, Custom);
134 setOperationAction(ISD::LOAD, MVT::i32, Custom);
135 setOperationAction(ISD::STORE, MVT::i32, Custom);
137 setTargetDAGCombine(ISD::ADDE);
138 setTargetDAGCombine(ISD::SUBE);
139 setTargetDAGCombine(ISD::MUL);
141 setOperationAction(ISD::INTRINSIC_WO_CHAIN, MVT::Other, Custom);
142 setOperationAction(ISD::INTRINSIC_W_CHAIN, MVT::Other, Custom);
143 setOperationAction(ISD::INTRINSIC_VOID, MVT::Other, Custom);
146 setOperationAction(ISD::LOAD, MVT::f64, Custom);
147 setOperationAction(ISD::STORE, MVT::f64, Custom);
150 computeRegisterProperties();
153 const MipsTargetLowering *
154 llvm::createMipsSETargetLowering(MipsTargetMachine &TM) {
155 return new MipsSETargetLowering(TM);
158 // Enable MSA support for the given integer type and Register class.
159 void MipsSETargetLowering::
160 addMSAIntType(MVT::SimpleValueType Ty, const TargetRegisterClass *RC) {
161 addRegisterClass(Ty, RC);
163 // Expand all builtin opcodes.
164 for (unsigned Opc = 0; Opc < ISD::BUILTIN_OP_END; ++Opc)
165 setOperationAction(Opc, Ty, Expand);
167 setOperationAction(ISD::BITCAST, Ty, Legal);
168 setOperationAction(ISD::LOAD, Ty, Legal);
169 setOperationAction(ISD::STORE, Ty, Legal);
170 setOperationAction(ISD::EXTRACT_VECTOR_ELT, Ty, Custom);
171 setOperationAction(ISD::INSERT_VECTOR_ELT, Ty, Legal);
172 setOperationAction(ISD::BUILD_VECTOR, Ty, Custom);
174 setOperationAction(ISD::ADD, Ty, Legal);
175 setOperationAction(ISD::AND, Ty, Legal);
176 setOperationAction(ISD::CTLZ, Ty, Legal);
177 setOperationAction(ISD::CTPOP, Ty, Legal);
178 setOperationAction(ISD::MUL, Ty, Legal);
179 setOperationAction(ISD::OR, Ty, Legal);
180 setOperationAction(ISD::SDIV, Ty, Legal);
181 setOperationAction(ISD::SREM, Ty, Legal);
182 setOperationAction(ISD::SHL, Ty, Legal);
183 setOperationAction(ISD::SRA, Ty, Legal);
184 setOperationAction(ISD::SRL, Ty, Legal);
185 setOperationAction(ISD::SUB, Ty, Legal);
186 setOperationAction(ISD::UDIV, Ty, Legal);
187 setOperationAction(ISD::UREM, Ty, Legal);
188 setOperationAction(ISD::VECTOR_SHUFFLE, Ty, Custom);
189 setOperationAction(ISD::VSELECT, Ty, Legal);
190 setOperationAction(ISD::XOR, Ty, Legal);
192 if (Ty == MVT::v4i32 || Ty == MVT::v2i64) {
193 setOperationAction(ISD::FP_TO_SINT, Ty, Legal);
194 setOperationAction(ISD::FP_TO_UINT, Ty, Legal);
195 setOperationAction(ISD::SINT_TO_FP, Ty, Legal);
196 setOperationAction(ISD::UINT_TO_FP, Ty, Legal);
199 setOperationAction(ISD::SETCC, Ty, Legal);
200 setCondCodeAction(ISD::SETNE, Ty, Expand);
201 setCondCodeAction(ISD::SETGE, Ty, Expand);
202 setCondCodeAction(ISD::SETGT, Ty, Expand);
203 setCondCodeAction(ISD::SETUGE, Ty, Expand);
204 setCondCodeAction(ISD::SETUGT, Ty, Expand);
207 // Enable MSA support for the given floating-point type and Register class.
208 void MipsSETargetLowering::
209 addMSAFloatType(MVT::SimpleValueType Ty, const TargetRegisterClass *RC) {
210 addRegisterClass(Ty, RC);
212 // Expand all builtin opcodes.
213 for (unsigned Opc = 0; Opc < ISD::BUILTIN_OP_END; ++Opc)
214 setOperationAction(Opc, Ty, Expand);
216 setOperationAction(ISD::LOAD, Ty, Legal);
217 setOperationAction(ISD::STORE, Ty, Legal);
218 setOperationAction(ISD::BITCAST, Ty, Legal);
219 setOperationAction(ISD::EXTRACT_VECTOR_ELT, Ty, Legal);
220 setOperationAction(ISD::INSERT_VECTOR_ELT, Ty, Legal);
221 setOperationAction(ISD::BUILD_VECTOR, Ty, Custom);
223 if (Ty != MVT::v8f16) {
224 setOperationAction(ISD::FABS, Ty, Legal);
225 setOperationAction(ISD::FADD, Ty, Legal);
226 setOperationAction(ISD::FDIV, Ty, Legal);
227 setOperationAction(ISD::FEXP2, Ty, Legal);
228 setOperationAction(ISD::FLOG2, Ty, Legal);
229 setOperationAction(ISD::FMA, Ty, Legal);
230 setOperationAction(ISD::FMUL, Ty, Legal);
231 setOperationAction(ISD::FRINT, Ty, Legal);
232 setOperationAction(ISD::FSQRT, Ty, Legal);
233 setOperationAction(ISD::FSUB, Ty, Legal);
234 setOperationAction(ISD::VSELECT, Ty, Legal);
236 setOperationAction(ISD::SETCC, Ty, Legal);
237 setCondCodeAction(ISD::SETOGE, Ty, Expand);
238 setCondCodeAction(ISD::SETOGT, Ty, Expand);
239 setCondCodeAction(ISD::SETUGE, Ty, Expand);
240 setCondCodeAction(ISD::SETUGT, Ty, Expand);
241 setCondCodeAction(ISD::SETGE, Ty, Expand);
242 setCondCodeAction(ISD::SETGT, Ty, Expand);
247 MipsSETargetLowering::allowsUnalignedMemoryAccesses(EVT VT, bool *Fast) const {
248 MVT::SimpleValueType SVT = VT.getSimpleVT().SimpleTy;
261 SDValue MipsSETargetLowering::LowerOperation(SDValue Op,
262 SelectionDAG &DAG) const {
263 switch(Op.getOpcode()) {
264 case ISD::LOAD: return lowerLOAD(Op, DAG);
265 case ISD::STORE: return lowerSTORE(Op, DAG);
266 case ISD::SMUL_LOHI: return lowerMulDiv(Op, MipsISD::Mult, true, true, DAG);
267 case ISD::UMUL_LOHI: return lowerMulDiv(Op, MipsISD::Multu, true, true, DAG);
268 case ISD::MULHS: return lowerMulDiv(Op, MipsISD::Mult, false, true, DAG);
269 case ISD::MULHU: return lowerMulDiv(Op, MipsISD::Multu, false, true, DAG);
270 case ISD::MUL: return lowerMulDiv(Op, MipsISD::Mult, true, false, DAG);
271 case ISD::SDIVREM: return lowerMulDiv(Op, MipsISD::DivRem, true, true, DAG);
272 case ISD::UDIVREM: return lowerMulDiv(Op, MipsISD::DivRemU, true, true,
274 case ISD::INTRINSIC_WO_CHAIN: return lowerINTRINSIC_WO_CHAIN(Op, DAG);
275 case ISD::INTRINSIC_W_CHAIN: return lowerINTRINSIC_W_CHAIN(Op, DAG);
276 case ISD::INTRINSIC_VOID: return lowerINTRINSIC_VOID(Op, DAG);
277 case ISD::EXTRACT_VECTOR_ELT: return lowerEXTRACT_VECTOR_ELT(Op, DAG);
278 case ISD::BUILD_VECTOR: return lowerBUILD_VECTOR(Op, DAG);
279 case ISD::VECTOR_SHUFFLE: return lowerVECTOR_SHUFFLE(Op, DAG);
282 return MipsTargetLowering::LowerOperation(Op, DAG);
286 // Transforms a subgraph in CurDAG if the following pattern is found:
287 // (addc multLo, Lo0), (adde multHi, Hi0),
289 // multHi/Lo: product of multiplication
290 // Lo0: initial value of Lo register
291 // Hi0: initial value of Hi register
292 // Return true if pattern matching was successful.
293 static bool selectMADD(SDNode *ADDENode, SelectionDAG *CurDAG) {
294 // ADDENode's second operand must be a flag output of an ADDC node in order
295 // for the matching to be successful.
296 SDNode *ADDCNode = ADDENode->getOperand(2).getNode();
298 if (ADDCNode->getOpcode() != ISD::ADDC)
301 SDValue MultHi = ADDENode->getOperand(0);
302 SDValue MultLo = ADDCNode->getOperand(0);
303 SDNode *MultNode = MultHi.getNode();
304 unsigned MultOpc = MultHi.getOpcode();
306 // MultHi and MultLo must be generated by the same node,
307 if (MultLo.getNode() != MultNode)
310 // and it must be a multiplication.
311 if (MultOpc != ISD::SMUL_LOHI && MultOpc != ISD::UMUL_LOHI)
314 // MultLo amd MultHi must be the first and second output of MultNode
316 if (MultHi.getResNo() != 1 || MultLo.getResNo() != 0)
319 // Transform this to a MADD only if ADDENode and ADDCNode are the only users
320 // of the values of MultNode, in which case MultNode will be removed in later
322 // If there exist users other than ADDENode or ADDCNode, this function returns
323 // here, which will result in MultNode being mapped to a single MULT
324 // instruction node rather than a pair of MULT and MADD instructions being
326 if (!MultHi.hasOneUse() || !MultLo.hasOneUse())
331 // Initialize accumulator.
332 SDValue ACCIn = CurDAG->getNode(MipsISD::MTLOHI, DL, MVT::Untyped,
333 ADDCNode->getOperand(1),
334 ADDENode->getOperand(1));
336 // create MipsMAdd(u) node
337 MultOpc = MultOpc == ISD::UMUL_LOHI ? MipsISD::MAddu : MipsISD::MAdd;
339 SDValue MAdd = CurDAG->getNode(MultOpc, DL, MVT::Untyped,
340 MultNode->getOperand(0),// Factor 0
341 MultNode->getOperand(1),// Factor 1
344 // replace uses of adde and addc here
345 if (!SDValue(ADDCNode, 0).use_empty()) {
346 SDValue LoOut = CurDAG->getNode(MipsISD::MFLO, DL, MVT::i32, MAdd);
347 CurDAG->ReplaceAllUsesOfValueWith(SDValue(ADDCNode, 0), LoOut);
349 if (!SDValue(ADDENode, 0).use_empty()) {
350 SDValue HiOut = CurDAG->getNode(MipsISD::MFHI, DL, MVT::i32, MAdd);
351 CurDAG->ReplaceAllUsesOfValueWith(SDValue(ADDENode, 0), HiOut);
358 // Transforms a subgraph in CurDAG if the following pattern is found:
359 // (addc Lo0, multLo), (sube Hi0, multHi),
361 // multHi/Lo: product of multiplication
362 // Lo0: initial value of Lo register
363 // Hi0: initial value of Hi register
364 // Return true if pattern matching was successful.
365 static bool selectMSUB(SDNode *SUBENode, SelectionDAG *CurDAG) {
366 // SUBENode's second operand must be a flag output of an SUBC node in order
367 // for the matching to be successful.
368 SDNode *SUBCNode = SUBENode->getOperand(2).getNode();
370 if (SUBCNode->getOpcode() != ISD::SUBC)
373 SDValue MultHi = SUBENode->getOperand(1);
374 SDValue MultLo = SUBCNode->getOperand(1);
375 SDNode *MultNode = MultHi.getNode();
376 unsigned MultOpc = MultHi.getOpcode();
378 // MultHi and MultLo must be generated by the same node,
379 if (MultLo.getNode() != MultNode)
382 // and it must be a multiplication.
383 if (MultOpc != ISD::SMUL_LOHI && MultOpc != ISD::UMUL_LOHI)
386 // MultLo amd MultHi must be the first and second output of MultNode
388 if (MultHi.getResNo() != 1 || MultLo.getResNo() != 0)
391 // Transform this to a MSUB only if SUBENode and SUBCNode are the only users
392 // of the values of MultNode, in which case MultNode will be removed in later
394 // If there exist users other than SUBENode or SUBCNode, this function returns
395 // here, which will result in MultNode being mapped to a single MULT
396 // instruction node rather than a pair of MULT and MSUB instructions being
398 if (!MultHi.hasOneUse() || !MultLo.hasOneUse())
403 // Initialize accumulator.
404 SDValue ACCIn = CurDAG->getNode(MipsISD::MTLOHI, DL, MVT::Untyped,
405 SUBCNode->getOperand(0),
406 SUBENode->getOperand(0));
408 // create MipsSub(u) node
409 MultOpc = MultOpc == ISD::UMUL_LOHI ? MipsISD::MSubu : MipsISD::MSub;
411 SDValue MSub = CurDAG->getNode(MultOpc, DL, MVT::Glue,
412 MultNode->getOperand(0),// Factor 0
413 MultNode->getOperand(1),// Factor 1
416 // replace uses of sube and subc here
417 if (!SDValue(SUBCNode, 0).use_empty()) {
418 SDValue LoOut = CurDAG->getNode(MipsISD::MFLO, DL, MVT::i32, MSub);
419 CurDAG->ReplaceAllUsesOfValueWith(SDValue(SUBCNode, 0), LoOut);
421 if (!SDValue(SUBENode, 0).use_empty()) {
422 SDValue HiOut = CurDAG->getNode(MipsISD::MFHI, DL, MVT::i32, MSub);
423 CurDAG->ReplaceAllUsesOfValueWith(SDValue(SUBENode, 0), HiOut);
429 static SDValue performADDECombine(SDNode *N, SelectionDAG &DAG,
430 TargetLowering::DAGCombinerInfo &DCI,
431 const MipsSubtarget *Subtarget) {
432 if (DCI.isBeforeLegalize())
435 if (Subtarget->hasMips32() && N->getValueType(0) == MVT::i32 &&
437 return SDValue(N, 0);
442 // Fold zero extensions into MipsISD::VEXTRACT_[SZ]EXT_ELT
444 // Performs the following transformations:
445 // - Changes MipsISD::VEXTRACT_[SZ]EXT_ELT to zero extension if its
446 // sign/zero-extension is completely overwritten by the new one performed by
448 // - Removes redundant zero extensions performed by an ISD::AND.
449 static SDValue performANDCombine(SDNode *N, SelectionDAG &DAG,
450 TargetLowering::DAGCombinerInfo &DCI,
451 const MipsSubtarget *Subtarget) {
452 if (!Subtarget->hasMSA())
455 SDValue Op0 = N->getOperand(0);
456 SDValue Op1 = N->getOperand(1);
457 unsigned Op0Opcode = Op0->getOpcode();
459 // (and (MipsVExtract[SZ]Ext $a, $b, $c), imm:$d)
460 // where $d + 1 == 2^n and n == 32
461 // or $d + 1 == 2^n and n <= 32 and ZExt
462 // -> (MipsVExtractZExt $a, $b, $c)
463 if (Op0Opcode == MipsISD::VEXTRACT_SEXT_ELT ||
464 Op0Opcode == MipsISD::VEXTRACT_ZEXT_ELT) {
465 ConstantSDNode *Mask = dyn_cast<ConstantSDNode>(Op1);
470 int32_t Log2IfPositive = (Mask->getAPIntValue() + 1).exactLogBase2();
472 if (Log2IfPositive <= 0)
473 return SDValue(); // Mask+1 is not a power of 2
475 SDValue Op0Op2 = Op0->getOperand(2);
476 EVT ExtendTy = cast<VTSDNode>(Op0Op2)->getVT();
477 unsigned ExtendTySize = ExtendTy.getSizeInBits();
478 unsigned Log2 = Log2IfPositive;
480 if ((Op0Opcode == MipsISD::VEXTRACT_ZEXT_ELT && Log2 >= ExtendTySize) ||
481 Log2 == ExtendTySize) {
482 SDValue Ops[] = { Op0->getOperand(0), Op0->getOperand(1), Op0Op2 };
483 DAG.MorphNodeTo(Op0.getNode(), MipsISD::VEXTRACT_ZEXT_ELT,
484 Op0->getVTList(), Ops, Op0->getNumOperands());
492 // Determine if the specified node is a constant vector splat.
494 // Returns true and sets Imm if:
495 // * N is a ISD::BUILD_VECTOR representing a constant splat
497 // This function is quite similar to MipsSEDAGToDAGISel::selectVSplat. The
498 // differences are that it assumes the MSA has already been checked and the
499 // arbitrary requirement for a maximum of 32-bit integers isn't applied (and
500 // must not be in order for binsri.d to be selectable).
501 static bool isVSplat(SDValue N, APInt &Imm, bool IsLittleEndian) {
502 BuildVectorSDNode *Node = dyn_cast<BuildVectorSDNode>(N.getNode());
507 APInt SplatValue, SplatUndef;
508 unsigned SplatBitSize;
511 if (!Node->isConstantSplat(SplatValue, SplatUndef, SplatBitSize, HasAnyUndefs,
520 // Test whether the given node is an all-ones build_vector.
521 static bool isVectorAllOnes(SDValue N) {
522 // Look through bitcasts. Endianness doesn't matter because we are looking
523 // for an all-ones value.
524 if (N->getOpcode() == ISD::BITCAST)
525 N = N->getOperand(0);
527 BuildVectorSDNode *BVN = dyn_cast<BuildVectorSDNode>(N);
532 APInt SplatValue, SplatUndef;
533 unsigned SplatBitSize;
536 // Endianness doesn't matter in this context because we are looking for
537 // an all-ones value.
538 if (BVN->isConstantSplat(SplatValue, SplatUndef, SplatBitSize, HasAnyUndefs))
539 return SplatValue.isAllOnesValue();
544 // Test whether N is the bitwise inverse of OfNode.
545 static bool isBitwiseInverse(SDValue N, SDValue OfNode) {
546 if (N->getOpcode() != ISD::XOR)
549 if (isVectorAllOnes(N->getOperand(0)))
550 return N->getOperand(1) == OfNode;
552 if (isVectorAllOnes(N->getOperand(1)))
553 return N->getOperand(0) == OfNode;
558 // Perform combines where ISD::OR is the root node.
560 // Performs the following transformations:
561 // - (or (and $a, $mask), (and $b, $inv_mask)) => (vselect $mask, $a, $b)
562 // where $inv_mask is the bitwise inverse of $mask and the 'or' has a 128-bit
564 static SDValue performORCombine(SDNode *N, SelectionDAG &DAG,
565 TargetLowering::DAGCombinerInfo &DCI,
566 const MipsSubtarget *Subtarget) {
567 if (!Subtarget->hasMSA())
570 EVT Ty = N->getValueType(0);
572 if (!Ty.is128BitVector())
575 SDValue Op0 = N->getOperand(0);
576 SDValue Op1 = N->getOperand(1);
578 if (Op0->getOpcode() == ISD::AND && Op1->getOpcode() == ISD::AND) {
579 SDValue Op0Op0 = Op0->getOperand(0);
580 SDValue Op0Op1 = Op0->getOperand(1);
581 SDValue Op1Op0 = Op1->getOperand(0);
582 SDValue Op1Op1 = Op1->getOperand(1);
583 bool IsLittleEndian = !Subtarget->isLittle();
585 SDValue IfSet, IfClr, Cond;
586 bool IsConstantMask = false;
589 // If Op0Op0 is an appropriate mask, try to find it's inverse in either
590 // Op1Op0, or Op1Op1. Keep track of the Cond, IfSet, and IfClr nodes, while
592 // IfClr will be set if we find a valid match.
593 if (isVSplat(Op0Op0, Mask, IsLittleEndian)) {
597 if (isVSplat(Op1Op0, InvMask, IsLittleEndian) && Mask == ~InvMask)
599 else if (isVSplat(Op1Op1, InvMask, IsLittleEndian) && Mask == ~InvMask)
602 IsConstantMask = true;
605 // If IfClr is not yet set, and Op0Op1 is an appropriate mask, try the same
606 // thing again using this mask.
607 // IfClr will be set if we find a valid match.
608 if (!IfClr.getNode() && isVSplat(Op0Op1, Mask, IsLittleEndian)) {
612 if (isVSplat(Op1Op0, InvMask, IsLittleEndian) && Mask == ~InvMask)
614 else if (isVSplat(Op1Op1, InvMask, IsLittleEndian) && Mask == ~InvMask)
617 IsConstantMask = true;
620 // If IfClr is not yet set, try looking for a non-constant match.
621 // IfClr will be set if we find a valid match amongst the eight
623 if (!IfClr.getNode()) {
624 if (isBitwiseInverse(Op0Op0, Op1Op0)) {
628 } else if (isBitwiseInverse(Op0Op1, Op1Op0)) {
632 } else if (isBitwiseInverse(Op0Op0, Op1Op1)) {
636 } else if (isBitwiseInverse(Op0Op1, Op1Op1)) {
640 } else if (isBitwiseInverse(Op1Op0, Op0Op0)) {
644 } else if (isBitwiseInverse(Op1Op1, Op0Op0)) {
648 } else if (isBitwiseInverse(Op1Op0, Op0Op1)) {
652 } else if (isBitwiseInverse(Op1Op1, Op0Op1)) {
659 // At this point, IfClr will be set if we have a valid match.
660 if (!IfClr.getNode())
663 assert(Cond.getNode() && IfSet.getNode());
665 // Fold degenerate cases.
666 if (IsConstantMask) {
667 if (Mask.isAllOnesValue())
673 // Transform the DAG into an equivalent VSELECT.
674 return DAG.getNode(ISD::VSELECT, SDLoc(N), Ty, Cond, IfClr, IfSet);
680 static SDValue performSUBECombine(SDNode *N, SelectionDAG &DAG,
681 TargetLowering::DAGCombinerInfo &DCI,
682 const MipsSubtarget *Subtarget) {
683 if (DCI.isBeforeLegalize())
686 if (Subtarget->hasMips32() && N->getValueType(0) == MVT::i32 &&
688 return SDValue(N, 0);
693 static SDValue genConstMult(SDValue X, uint64_t C, SDLoc DL, EVT VT,
694 EVT ShiftTy, SelectionDAG &DAG) {
695 // Clear the upper (64 - VT.sizeInBits) bits.
696 C &= ((uint64_t)-1) >> (64 - VT.getSizeInBits());
700 return DAG.getConstant(0, VT);
706 // If c is power of 2, return (shl x, log2(c)).
707 if (isPowerOf2_64(C))
708 return DAG.getNode(ISD::SHL, DL, VT, X,
709 DAG.getConstant(Log2_64(C), ShiftTy));
711 unsigned Log2Ceil = Log2_64_Ceil(C);
712 uint64_t Floor = 1LL << Log2_64(C);
713 uint64_t Ceil = Log2Ceil == 64 ? 0LL : 1LL << Log2Ceil;
715 // If |c - floor_c| <= |c - ceil_c|,
716 // where floor_c = pow(2, floor(log2(c))) and ceil_c = pow(2, ceil(log2(c))),
717 // return (add constMult(x, floor_c), constMult(x, c - floor_c)).
718 if (C - Floor <= Ceil - C) {
719 SDValue Op0 = genConstMult(X, Floor, DL, VT, ShiftTy, DAG);
720 SDValue Op1 = genConstMult(X, C - Floor, DL, VT, ShiftTy, DAG);
721 return DAG.getNode(ISD::ADD, DL, VT, Op0, Op1);
724 // If |c - floor_c| > |c - ceil_c|,
725 // return (sub constMult(x, ceil_c), constMult(x, ceil_c - c)).
726 SDValue Op0 = genConstMult(X, Ceil, DL, VT, ShiftTy, DAG);
727 SDValue Op1 = genConstMult(X, Ceil - C, DL, VT, ShiftTy, DAG);
728 return DAG.getNode(ISD::SUB, DL, VT, Op0, Op1);
731 static SDValue performMULCombine(SDNode *N, SelectionDAG &DAG,
732 const TargetLowering::DAGCombinerInfo &DCI,
733 const MipsSETargetLowering *TL) {
734 EVT VT = N->getValueType(0);
736 if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(N->getOperand(1)))
738 return genConstMult(N->getOperand(0), C->getZExtValue(), SDLoc(N),
739 VT, TL->getScalarShiftAmountTy(VT), DAG);
741 return SDValue(N, 0);
744 static SDValue performDSPShiftCombine(unsigned Opc, SDNode *N, EVT Ty,
746 const MipsSubtarget *Subtarget) {
747 // See if this is a vector splat immediate node.
748 APInt SplatValue, SplatUndef;
749 unsigned SplatBitSize;
751 unsigned EltSize = Ty.getVectorElementType().getSizeInBits();
752 BuildVectorSDNode *BV = dyn_cast<BuildVectorSDNode>(N->getOperand(1));
755 !BV->isConstantSplat(SplatValue, SplatUndef, SplatBitSize, HasAnyUndefs,
756 EltSize, !Subtarget->isLittle()) ||
757 (SplatBitSize != EltSize) ||
758 (SplatValue.getZExtValue() >= EltSize))
761 return DAG.getNode(Opc, SDLoc(N), Ty, N->getOperand(0),
762 DAG.getConstant(SplatValue.getZExtValue(), MVT::i32));
765 static SDValue performSHLCombine(SDNode *N, SelectionDAG &DAG,
766 TargetLowering::DAGCombinerInfo &DCI,
767 const MipsSubtarget *Subtarget) {
768 EVT Ty = N->getValueType(0);
770 if ((Ty != MVT::v2i16) && (Ty != MVT::v4i8))
773 return performDSPShiftCombine(MipsISD::SHLL_DSP, N, Ty, DAG, Subtarget);
776 // Fold sign-extensions into MipsISD::VEXTRACT_[SZ]EXT_ELT for MSA and fold
777 // constant splats into MipsISD::SHRA_DSP for DSPr2.
779 // Performs the following transformations:
780 // - Changes MipsISD::VEXTRACT_[SZ]EXT_ELT to sign extension if its
781 // sign/zero-extension is completely overwritten by the new one performed by
782 // the ISD::SRA and ISD::SHL nodes.
783 // - Removes redundant sign extensions performed by an ISD::SRA and ISD::SHL
786 // See performDSPShiftCombine for more information about the transformation
788 static SDValue performSRACombine(SDNode *N, SelectionDAG &DAG,
789 TargetLowering::DAGCombinerInfo &DCI,
790 const MipsSubtarget *Subtarget) {
791 EVT Ty = N->getValueType(0);
793 if (Subtarget->hasMSA()) {
794 SDValue Op0 = N->getOperand(0);
795 SDValue Op1 = N->getOperand(1);
797 // (sra (shl (MipsVExtract[SZ]Ext $a, $b, $c), imm:$d), imm:$d)
798 // where $d + sizeof($c) == 32
799 // or $d + sizeof($c) <= 32 and SExt
800 // -> (MipsVExtractSExt $a, $b, $c)
801 if (Op0->getOpcode() == ISD::SHL && Op1 == Op0->getOperand(1)) {
802 SDValue Op0Op0 = Op0->getOperand(0);
803 ConstantSDNode *ShAmount = dyn_cast<ConstantSDNode>(Op1);
808 if (Op0Op0->getOpcode() != MipsISD::VEXTRACT_SEXT_ELT &&
809 Op0Op0->getOpcode() != MipsISD::VEXTRACT_ZEXT_ELT)
812 EVT ExtendTy = cast<VTSDNode>(Op0Op0->getOperand(2))->getVT();
813 unsigned TotalBits = ShAmount->getZExtValue() + ExtendTy.getSizeInBits();
815 if (TotalBits == 32 ||
816 (Op0Op0->getOpcode() == MipsISD::VEXTRACT_SEXT_ELT &&
818 SDValue Ops[] = { Op0Op0->getOperand(0), Op0Op0->getOperand(1),
819 Op0Op0->getOperand(2) };
820 DAG.MorphNodeTo(Op0Op0.getNode(), MipsISD::VEXTRACT_SEXT_ELT,
821 Op0Op0->getVTList(), Ops, Op0Op0->getNumOperands());
827 if ((Ty != MVT::v2i16) && ((Ty != MVT::v4i8) || !Subtarget->hasDSPR2()))
830 return performDSPShiftCombine(MipsISD::SHRA_DSP, N, Ty, DAG, Subtarget);
834 static SDValue performSRLCombine(SDNode *N, SelectionDAG &DAG,
835 TargetLowering::DAGCombinerInfo &DCI,
836 const MipsSubtarget *Subtarget) {
837 EVT Ty = N->getValueType(0);
839 if (((Ty != MVT::v2i16) || !Subtarget->hasDSPR2()) && (Ty != MVT::v4i8))
842 return performDSPShiftCombine(MipsISD::SHRL_DSP, N, Ty, DAG, Subtarget);
845 static bool isLegalDSPCondCode(EVT Ty, ISD::CondCode CC) {
846 bool IsV216 = (Ty == MVT::v2i16);
850 case ISD::SETNE: return true;
854 case ISD::SETGE: return IsV216;
858 case ISD::SETUGE: return !IsV216;
859 default: return false;
863 static SDValue performSETCCCombine(SDNode *N, SelectionDAG &DAG) {
864 EVT Ty = N->getValueType(0);
866 if ((Ty != MVT::v2i16) && (Ty != MVT::v4i8))
869 if (!isLegalDSPCondCode(Ty, cast<CondCodeSDNode>(N->getOperand(2))->get()))
872 return DAG.getNode(MipsISD::SETCC_DSP, SDLoc(N), Ty, N->getOperand(0),
873 N->getOperand(1), N->getOperand(2));
876 static SDValue performVSELECTCombine(SDNode *N, SelectionDAG &DAG) {
877 EVT Ty = N->getValueType(0);
879 if (Ty.is128BitVector() && Ty.isInteger()) {
880 // Try the following combines:
881 // (vselect (setcc $a, $b, SETLT), $b, $a)) -> (vsmax $a, $b)
882 // (vselect (setcc $a, $b, SETLE), $b, $a)) -> (vsmax $a, $b)
883 // (vselect (setcc $a, $b, SETLT), $a, $b)) -> (vsmin $a, $b)
884 // (vselect (setcc $a, $b, SETLE), $a, $b)) -> (vsmin $a, $b)
885 // (vselect (setcc $a, $b, SETULT), $b, $a)) -> (vumax $a, $b)
886 // (vselect (setcc $a, $b, SETULE), $b, $a)) -> (vumax $a, $b)
887 // (vselect (setcc $a, $b, SETULT), $a, $b)) -> (vumin $a, $b)
888 // (vselect (setcc $a, $b, SETULE), $a, $b)) -> (vumin $a, $b)
889 // SETGT/SETGE/SETUGT/SETUGE variants of these will show up initially but
890 // will be expanded to equivalent SETLT/SETLE/SETULT/SETULE versions by the
892 SDValue Op0 = N->getOperand(0);
894 if (Op0->getOpcode() != ISD::SETCC)
897 ISD::CondCode CondCode = cast<CondCodeSDNode>(Op0->getOperand(2))->get();
900 if (CondCode == ISD::SETLT || CondCode == ISD::SETLE)
902 else if (CondCode == ISD::SETULT || CondCode == ISD::SETULE)
907 SDValue Op1 = N->getOperand(1);
908 SDValue Op2 = N->getOperand(2);
909 SDValue Op0Op0 = Op0->getOperand(0);
910 SDValue Op0Op1 = Op0->getOperand(1);
912 if (Op1 == Op0Op0 && Op2 == Op0Op1)
913 return DAG.getNode(Signed ? MipsISD::VSMIN : MipsISD::VUMIN, SDLoc(N),
915 else if (Op1 == Op0Op1 && Op2 == Op0Op0)
916 return DAG.getNode(Signed ? MipsISD::VSMAX : MipsISD::VUMAX, SDLoc(N),
918 } else if ((Ty == MVT::v2i16) || (Ty == MVT::v4i8)) {
919 SDValue SetCC = N->getOperand(0);
921 if (SetCC.getOpcode() != MipsISD::SETCC_DSP)
924 return DAG.getNode(MipsISD::SELECT_CC_DSP, SDLoc(N), Ty,
925 SetCC.getOperand(0), SetCC.getOperand(1),
926 N->getOperand(1), N->getOperand(2), SetCC.getOperand(2));
932 static SDValue performXORCombine(SDNode *N, SelectionDAG &DAG,
933 const MipsSubtarget *Subtarget) {
934 EVT Ty = N->getValueType(0);
936 if (Subtarget->hasMSA() && Ty.is128BitVector() && Ty.isInteger()) {
937 // Try the following combines:
938 // (xor (or $a, $b), (build_vector allones))
939 // (xor (or $a, $b), (bitcast (build_vector allones)))
940 SDValue Op0 = N->getOperand(0);
941 SDValue Op1 = N->getOperand(1);
944 if (ISD::isBuildVectorAllOnes(Op0.getNode()))
946 else if (ISD::isBuildVectorAllOnes(Op1.getNode()))
951 if (NotOp->getOpcode() == ISD::OR)
952 return DAG.getNode(MipsISD::VNOR, SDLoc(N), Ty, NotOp->getOperand(0),
953 NotOp->getOperand(1));
960 MipsSETargetLowering::PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const {
961 SelectionDAG &DAG = DCI.DAG;
964 switch (N->getOpcode()) {
966 return performADDECombine(N, DAG, DCI, Subtarget);
968 Val = performANDCombine(N, DAG, DCI, Subtarget);
971 Val = performORCombine(N, DAG, DCI, Subtarget);
974 return performSUBECombine(N, DAG, DCI, Subtarget);
976 return performMULCombine(N, DAG, DCI, this);
978 return performSHLCombine(N, DAG, DCI, Subtarget);
980 return performSRACombine(N, DAG, DCI, Subtarget);
982 return performSRLCombine(N, DAG, DCI, Subtarget);
984 return performVSELECTCombine(N, DAG);
986 Val = performXORCombine(N, DAG, Subtarget);
989 Val = performSETCCCombine(N, DAG);
994 DEBUG(dbgs() << "\nMipsSE DAG Combine:\n";
995 N->printrWithDepth(dbgs(), &DAG);
997 Val.getNode()->printrWithDepth(dbgs(), &DAG);
1002 return MipsTargetLowering::PerformDAGCombine(N, DCI);
1006 MipsSETargetLowering::EmitInstrWithCustomInserter(MachineInstr *MI,
1007 MachineBasicBlock *BB) const {
1008 switch (MI->getOpcode()) {
1010 return MipsTargetLowering::EmitInstrWithCustomInserter(MI, BB);
1011 case Mips::BPOSGE32_PSEUDO:
1012 return emitBPOSGE32(MI, BB);
1013 case Mips::SNZ_B_PSEUDO:
1014 return emitMSACBranchPseudo(MI, BB, Mips::BNZ_B);
1015 case Mips::SNZ_H_PSEUDO:
1016 return emitMSACBranchPseudo(MI, BB, Mips::BNZ_H);
1017 case Mips::SNZ_W_PSEUDO:
1018 return emitMSACBranchPseudo(MI, BB, Mips::BNZ_W);
1019 case Mips::SNZ_D_PSEUDO:
1020 return emitMSACBranchPseudo(MI, BB, Mips::BNZ_D);
1021 case Mips::SNZ_V_PSEUDO:
1022 return emitMSACBranchPseudo(MI, BB, Mips::BNZ_V);
1023 case Mips::SZ_B_PSEUDO:
1024 return emitMSACBranchPseudo(MI, BB, Mips::BZ_B);
1025 case Mips::SZ_H_PSEUDO:
1026 return emitMSACBranchPseudo(MI, BB, Mips::BZ_H);
1027 case Mips::SZ_W_PSEUDO:
1028 return emitMSACBranchPseudo(MI, BB, Mips::BZ_W);
1029 case Mips::SZ_D_PSEUDO:
1030 return emitMSACBranchPseudo(MI, BB, Mips::BZ_D);
1031 case Mips::SZ_V_PSEUDO:
1032 return emitMSACBranchPseudo(MI, BB, Mips::BZ_V);
1033 case Mips::COPY_FW_PSEUDO:
1034 return emitCOPY_FW(MI, BB);
1035 case Mips::COPY_FD_PSEUDO:
1036 return emitCOPY_FD(MI, BB);
1037 case Mips::INSERT_FW_PSEUDO:
1038 return emitINSERT_FW(MI, BB);
1039 case Mips::INSERT_FD_PSEUDO:
1040 return emitINSERT_FD(MI, BB);
1041 case Mips::FILL_FW_PSEUDO:
1042 return emitFILL_FW(MI, BB);
1043 case Mips::FILL_FD_PSEUDO:
1044 return emitFILL_FD(MI, BB);
1045 case Mips::FEXP2_W_1_PSEUDO:
1046 return emitFEXP2_W_1(MI, BB);
1047 case Mips::FEXP2_D_1_PSEUDO:
1048 return emitFEXP2_D_1(MI, BB);
1052 bool MipsSETargetLowering::
1053 isEligibleForTailCallOptimization(const MipsCC &MipsCCInfo,
1054 unsigned NextStackOffset,
1055 const MipsFunctionInfo& FI) const {
1056 if (!EnableMipsTailCalls)
1059 // Return false if either the callee or caller has a byval argument.
1060 if (MipsCCInfo.hasByValArg() || FI.hasByvalArg())
1063 // Return true if the callee's argument area is no larger than the
1065 return NextStackOffset <= FI.getIncomingArgSize();
1068 void MipsSETargetLowering::
1069 getOpndList(SmallVectorImpl<SDValue> &Ops,
1070 std::deque< std::pair<unsigned, SDValue> > &RegsToPass,
1071 bool IsPICCall, bool GlobalOrExternal, bool InternalLinkage,
1072 CallLoweringInfo &CLI, SDValue Callee, SDValue Chain) const {
1073 // T9 should contain the address of the callee function if
1074 // -reloction-model=pic or it is an indirect call.
1075 if (IsPICCall || !GlobalOrExternal) {
1076 unsigned T9Reg = IsN64 ? Mips::T9_64 : Mips::T9;
1077 RegsToPass.push_front(std::make_pair(T9Reg, Callee));
1079 Ops.push_back(Callee);
1081 MipsTargetLowering::getOpndList(Ops, RegsToPass, IsPICCall, GlobalOrExternal,
1082 InternalLinkage, CLI, Callee, Chain);
1085 SDValue MipsSETargetLowering::lowerLOAD(SDValue Op, SelectionDAG &DAG) const {
1086 LoadSDNode &Nd = *cast<LoadSDNode>(Op);
1088 if (Nd.getMemoryVT() != MVT::f64 || !NoDPLoadStore)
1089 return MipsTargetLowering::lowerLOAD(Op, DAG);
1091 // Replace a double precision load with two i32 loads and a buildpair64.
1093 SDValue Ptr = Nd.getBasePtr(), Chain = Nd.getChain();
1094 EVT PtrVT = Ptr.getValueType();
1096 // i32 load from lower address.
1097 SDValue Lo = DAG.getLoad(MVT::i32, DL, Chain, Ptr,
1098 MachinePointerInfo(), Nd.isVolatile(),
1099 Nd.isNonTemporal(), Nd.isInvariant(),
1102 // i32 load from higher address.
1103 Ptr = DAG.getNode(ISD::ADD, DL, PtrVT, Ptr, DAG.getConstant(4, PtrVT));
1104 SDValue Hi = DAG.getLoad(MVT::i32, DL, Lo.getValue(1), Ptr,
1105 MachinePointerInfo(), Nd.isVolatile(),
1106 Nd.isNonTemporal(), Nd.isInvariant(),
1107 std::min(Nd.getAlignment(), 4U));
1109 if (!Subtarget->isLittle())
1112 SDValue BP = DAG.getNode(MipsISD::BuildPairF64, DL, MVT::f64, Lo, Hi);
1113 SDValue Ops[2] = {BP, Hi.getValue(1)};
1114 return DAG.getMergeValues(Ops, 2, DL);
1117 SDValue MipsSETargetLowering::lowerSTORE(SDValue Op, SelectionDAG &DAG) const {
1118 StoreSDNode &Nd = *cast<StoreSDNode>(Op);
1120 if (Nd.getMemoryVT() != MVT::f64 || !NoDPLoadStore)
1121 return MipsTargetLowering::lowerSTORE(Op, DAG);
1123 // Replace a double precision store with two extractelement64s and i32 stores.
1125 SDValue Val = Nd.getValue(), Ptr = Nd.getBasePtr(), Chain = Nd.getChain();
1126 EVT PtrVT = Ptr.getValueType();
1127 SDValue Lo = DAG.getNode(MipsISD::ExtractElementF64, DL, MVT::i32,
1128 Val, DAG.getConstant(0, MVT::i32));
1129 SDValue Hi = DAG.getNode(MipsISD::ExtractElementF64, DL, MVT::i32,
1130 Val, DAG.getConstant(1, MVT::i32));
1132 if (!Subtarget->isLittle())
1135 // i32 store to lower address.
1136 Chain = DAG.getStore(Chain, DL, Lo, Ptr, MachinePointerInfo(),
1137 Nd.isVolatile(), Nd.isNonTemporal(), Nd.getAlignment(),
1140 // i32 store to higher address.
1141 Ptr = DAG.getNode(ISD::ADD, DL, PtrVT, Ptr, DAG.getConstant(4, PtrVT));
1142 return DAG.getStore(Chain, DL, Hi, Ptr, MachinePointerInfo(),
1143 Nd.isVolatile(), Nd.isNonTemporal(),
1144 std::min(Nd.getAlignment(), 4U), Nd.getTBAAInfo());
1147 SDValue MipsSETargetLowering::lowerMulDiv(SDValue Op, unsigned NewOpc,
1148 bool HasLo, bool HasHi,
1149 SelectionDAG &DAG) const {
1150 EVT Ty = Op.getOperand(0).getValueType();
1152 SDValue Mult = DAG.getNode(NewOpc, DL, MVT::Untyped,
1153 Op.getOperand(0), Op.getOperand(1));
1157 Lo = DAG.getNode(MipsISD::MFLO, DL, Ty, Mult);
1159 Hi = DAG.getNode(MipsISD::MFHI, DL, Ty, Mult);
1161 if (!HasLo || !HasHi)
1162 return HasLo ? Lo : Hi;
1164 SDValue Vals[] = { Lo, Hi };
1165 return DAG.getMergeValues(Vals, 2, DL);
1169 static SDValue initAccumulator(SDValue In, SDLoc DL, SelectionDAG &DAG) {
1170 SDValue InLo = DAG.getNode(ISD::EXTRACT_ELEMENT, DL, MVT::i32, In,
1171 DAG.getConstant(0, MVT::i32));
1172 SDValue InHi = DAG.getNode(ISD::EXTRACT_ELEMENT, DL, MVT::i32, In,
1173 DAG.getConstant(1, MVT::i32));
1174 return DAG.getNode(MipsISD::MTLOHI, DL, MVT::Untyped, InLo, InHi);
1177 static SDValue extractLOHI(SDValue Op, SDLoc DL, SelectionDAG &DAG) {
1178 SDValue Lo = DAG.getNode(MipsISD::MFLO, DL, MVT::i32, Op);
1179 SDValue Hi = DAG.getNode(MipsISD::MFHI, DL, MVT::i32, Op);
1180 return DAG.getNode(ISD::BUILD_PAIR, DL, MVT::i64, Lo, Hi);
1183 // This function expands mips intrinsic nodes which have 64-bit input operands
1184 // or output values.
1186 // out64 = intrinsic-node in64
1188 // lo = copy (extract-element (in64, 0))
1189 // hi = copy (extract-element (in64, 1))
1190 // mips-specific-node
1193 // out64 = merge-values (v0, v1)
1195 static SDValue lowerDSPIntr(SDValue Op, SelectionDAG &DAG, unsigned Opc) {
1197 bool HasChainIn = Op->getOperand(0).getValueType() == MVT::Other;
1198 SmallVector<SDValue, 3> Ops;
1201 // See if Op has a chain input.
1203 Ops.push_back(Op->getOperand(OpNo++));
1205 // The next operand is the intrinsic opcode.
1206 assert(Op->getOperand(OpNo).getOpcode() == ISD::TargetConstant);
1208 // See if the next operand has type i64.
1209 SDValue Opnd = Op->getOperand(++OpNo), In64;
1211 if (Opnd.getValueType() == MVT::i64)
1212 In64 = initAccumulator(Opnd, DL, DAG);
1214 Ops.push_back(Opnd);
1216 // Push the remaining operands.
1217 for (++OpNo ; OpNo < Op->getNumOperands(); ++OpNo)
1218 Ops.push_back(Op->getOperand(OpNo));
1220 // Add In64 to the end of the list.
1222 Ops.push_back(In64);
1225 SmallVector<EVT, 2> ResTys;
1227 for (SDNode::value_iterator I = Op->value_begin(), E = Op->value_end();
1229 ResTys.push_back((*I == MVT::i64) ? MVT::Untyped : *I);
1232 SDValue Val = DAG.getNode(Opc, DL, ResTys, &Ops[0], Ops.size());
1233 SDValue Out = (ResTys[0] == MVT::Untyped) ? extractLOHI(Val, DL, DAG) : Val;
1238 assert(Val->getValueType(1) == MVT::Other);
1239 SDValue Vals[] = { Out, SDValue(Val.getNode(), 1) };
1240 return DAG.getMergeValues(Vals, 2, DL);
1243 // Lower an MSA copy intrinsic into the specified SelectionDAG node
1244 static SDValue lowerMSACopyIntr(SDValue Op, SelectionDAG &DAG, unsigned Opc) {
1246 SDValue Vec = Op->getOperand(1);
1247 SDValue Idx = Op->getOperand(2);
1248 EVT ResTy = Op->getValueType(0);
1249 EVT EltTy = Vec->getValueType(0).getVectorElementType();
1251 SDValue Result = DAG.getNode(Opc, DL, ResTy, Vec, Idx,
1252 DAG.getValueType(EltTy));
1257 static SDValue lowerMSASplatZExt(SDValue Op, unsigned OpNr, SelectionDAG &DAG) {
1258 EVT ResVecTy = Op->getValueType(0);
1259 EVT ViaVecTy = ResVecTy;
1262 // When ResVecTy == MVT::v2i64, LaneA is the upper 32 bits of the lane and
1263 // LaneB is the lower 32-bits. Otherwise LaneA and LaneB are alternating
1266 SDValue LaneB = Op->getOperand(2);
1268 if (ResVecTy == MVT::v2i64) {
1269 LaneA = DAG.getConstant(0, MVT::i32);
1270 ViaVecTy = MVT::v4i32;
1274 SDValue Ops[16] = { LaneA, LaneB, LaneA, LaneB, LaneA, LaneB, LaneA, LaneB,
1275 LaneA, LaneB, LaneA, LaneB, LaneA, LaneB, LaneA, LaneB };
1277 SDValue Result = DAG.getNode(ISD::BUILD_VECTOR, DL, ViaVecTy, Ops,
1278 ViaVecTy.getVectorNumElements());
1280 if (ViaVecTy != ResVecTy)
1281 Result = DAG.getNode(ISD::BITCAST, DL, ResVecTy, Result);
1286 static SDValue lowerMSASplatImm(SDValue Op, unsigned ImmOp, SelectionDAG &DAG) {
1287 return DAG.getConstant(Op->getConstantOperandVal(ImmOp), Op->getValueType(0));
1290 static SDValue getBuildVectorSplat(EVT VecTy, SDValue SplatValue,
1291 bool BigEndian, SelectionDAG &DAG) {
1292 EVT ViaVecTy = VecTy;
1293 SDValue SplatValueA = SplatValue;
1294 SDValue SplatValueB = SplatValue;
1295 SDLoc DL(SplatValue);
1297 if (VecTy == MVT::v2i64) {
1298 // v2i64 BUILD_VECTOR must be performed via v4i32 so split into i32's.
1299 ViaVecTy = MVT::v4i32;
1301 SplatValueA = DAG.getNode(ISD::TRUNCATE, DL, MVT::i32, SplatValue);
1302 SplatValueB = DAG.getNode(ISD::SRL, DL, MVT::i64, SplatValue,
1303 DAG.getConstant(32, MVT::i32));
1304 SplatValueB = DAG.getNode(ISD::TRUNCATE, DL, MVT::i32, SplatValueB);
1307 // We currently hold the parts in little endian order. Swap them if
1310 std::swap(SplatValueA, SplatValueB);
1312 SDValue Ops[16] = { SplatValueA, SplatValueB, SplatValueA, SplatValueB,
1313 SplatValueA, SplatValueB, SplatValueA, SplatValueB,
1314 SplatValueA, SplatValueB, SplatValueA, SplatValueB,
1315 SplatValueA, SplatValueB, SplatValueA, SplatValueB };
1317 SDValue Result = DAG.getNode(ISD::BUILD_VECTOR, DL, ViaVecTy, Ops,
1318 ViaVecTy.getVectorNumElements());
1320 if (VecTy != ViaVecTy)
1321 Result = DAG.getNode(ISD::BITCAST, DL, VecTy, Result);
1326 static SDValue lowerMSABinaryBitImmIntr(SDValue Op, SelectionDAG &DAG,
1327 unsigned Opc, SDValue Imm,
1329 EVT VecTy = Op->getValueType(0);
1333 // The DAG Combiner can't constant fold bitcasted vectors yet so we must do it
1335 if (VecTy == MVT::v2i64) {
1336 if (ConstantSDNode *CImm = dyn_cast<ConstantSDNode>(Imm)) {
1337 APInt BitImm = APInt(64, 1) << CImm->getAPIntValue();
1339 SDValue BitImmHiOp = DAG.getConstant(BitImm.lshr(32).trunc(32), MVT::i32);
1340 SDValue BitImmLoOp = DAG.getConstant(BitImm.trunc(32), MVT::i32);
1343 std::swap(BitImmLoOp, BitImmHiOp);
1346 DAG.getNode(ISD::BITCAST, DL, MVT::v2i64,
1347 DAG.getNode(ISD::BUILD_VECTOR, DL, MVT::v4i32, BitImmLoOp,
1348 BitImmHiOp, BitImmLoOp, BitImmHiOp));
1352 if (Exp2Imm.getNode() == NULL) {
1353 // We couldnt constant fold, do a vector shift instead
1355 // Extend i32 to i64 if necessary. Sign or zero extend doesn't matter since
1356 // only values 0-63 are valid.
1357 if (VecTy == MVT::v2i64)
1358 Imm = DAG.getNode(ISD::ZERO_EXTEND, DL, MVT::i64, Imm);
1360 Exp2Imm = getBuildVectorSplat(VecTy, Imm, BigEndian, DAG);
1363 DAG.getNode(ISD::SHL, DL, VecTy, DAG.getConstant(1, VecTy), Exp2Imm);
1366 return DAG.getNode(Opc, DL, VecTy, Op->getOperand(1), Exp2Imm);
1369 static SDValue lowerMSABitClear(SDValue Op, SelectionDAG &DAG) {
1370 EVT ResTy = Op->getValueType(0);
1371 EVT ViaVecTy = ResTy == MVT::v2i64 ? MVT::v4i32 : ResTy;
1373 SDValue One = DAG.getConstant(1, ResTy);
1374 SDValue Bit = DAG.getNode(ISD::SHL, DL, ResTy, One, Op->getOperand(2));
1376 SDValue AllOnes = DAG.getConstant(-1, MVT::i32);
1377 SDValue AllOnesOperands[16] = { AllOnes, AllOnes, AllOnes, AllOnes,
1378 AllOnes, AllOnes, AllOnes, AllOnes,
1379 AllOnes, AllOnes, AllOnes, AllOnes,
1380 AllOnes, AllOnes, AllOnes, AllOnes };
1381 AllOnes = DAG.getNode(ISD::BUILD_VECTOR, DL, ViaVecTy, AllOnesOperands,
1382 ViaVecTy.getVectorNumElements());
1383 if (ResTy != ViaVecTy)
1384 AllOnes = DAG.getNode(ISD::BITCAST, DL, ResTy, AllOnes);
1386 Bit = DAG.getNode(ISD::XOR, DL, ResTy, Bit, AllOnes);
1388 return DAG.getNode(ISD::AND, DL, ResTy, Op->getOperand(1), Bit);
1391 static SDValue lowerMSABitClearImm(SDValue Op, SelectionDAG &DAG) {
1393 EVT ResTy = Op->getValueType(0);
1394 APInt BitImm = APInt(ResTy.getVectorElementType().getSizeInBits(), 1)
1395 << cast<ConstantSDNode>(Op->getOperand(2))->getAPIntValue();
1396 SDValue BitMask = DAG.getConstant(~BitImm, ResTy);
1398 return DAG.getNode(ISD::AND, DL, ResTy, Op->getOperand(1), BitMask);
1401 SDValue MipsSETargetLowering::lowerINTRINSIC_WO_CHAIN(SDValue Op,
1402 SelectionDAG &DAG) const {
1405 switch (cast<ConstantSDNode>(Op->getOperand(0))->getZExtValue()) {
1408 case Intrinsic::mips_shilo:
1409 return lowerDSPIntr(Op, DAG, MipsISD::SHILO);
1410 case Intrinsic::mips_dpau_h_qbl:
1411 return lowerDSPIntr(Op, DAG, MipsISD::DPAU_H_QBL);
1412 case Intrinsic::mips_dpau_h_qbr:
1413 return lowerDSPIntr(Op, DAG, MipsISD::DPAU_H_QBR);
1414 case Intrinsic::mips_dpsu_h_qbl:
1415 return lowerDSPIntr(Op, DAG, MipsISD::DPSU_H_QBL);
1416 case Intrinsic::mips_dpsu_h_qbr:
1417 return lowerDSPIntr(Op, DAG, MipsISD::DPSU_H_QBR);
1418 case Intrinsic::mips_dpa_w_ph:
1419 return lowerDSPIntr(Op, DAG, MipsISD::DPA_W_PH);
1420 case Intrinsic::mips_dps_w_ph:
1421 return lowerDSPIntr(Op, DAG, MipsISD::DPS_W_PH);
1422 case Intrinsic::mips_dpax_w_ph:
1423 return lowerDSPIntr(Op, DAG, MipsISD::DPAX_W_PH);
1424 case Intrinsic::mips_dpsx_w_ph:
1425 return lowerDSPIntr(Op, DAG, MipsISD::DPSX_W_PH);
1426 case Intrinsic::mips_mulsa_w_ph:
1427 return lowerDSPIntr(Op, DAG, MipsISD::MULSA_W_PH);
1428 case Intrinsic::mips_mult:
1429 return lowerDSPIntr(Op, DAG, MipsISD::Mult);
1430 case Intrinsic::mips_multu:
1431 return lowerDSPIntr(Op, DAG, MipsISD::Multu);
1432 case Intrinsic::mips_madd:
1433 return lowerDSPIntr(Op, DAG, MipsISD::MAdd);
1434 case Intrinsic::mips_maddu:
1435 return lowerDSPIntr(Op, DAG, MipsISD::MAddu);
1436 case Intrinsic::mips_msub:
1437 return lowerDSPIntr(Op, DAG, MipsISD::MSub);
1438 case Intrinsic::mips_msubu:
1439 return lowerDSPIntr(Op, DAG, MipsISD::MSubu);
1440 case Intrinsic::mips_addv_b:
1441 case Intrinsic::mips_addv_h:
1442 case Intrinsic::mips_addv_w:
1443 case Intrinsic::mips_addv_d:
1444 return DAG.getNode(ISD::ADD, DL, Op->getValueType(0), Op->getOperand(1),
1446 case Intrinsic::mips_addvi_b:
1447 case Intrinsic::mips_addvi_h:
1448 case Intrinsic::mips_addvi_w:
1449 case Intrinsic::mips_addvi_d:
1450 return DAG.getNode(ISD::ADD, DL, Op->getValueType(0), Op->getOperand(1),
1451 lowerMSASplatImm(Op, 2, DAG));
1452 case Intrinsic::mips_and_v:
1453 return DAG.getNode(ISD::AND, DL, Op->getValueType(0), Op->getOperand(1),
1455 case Intrinsic::mips_andi_b:
1456 return DAG.getNode(ISD::AND, DL, Op->getValueType(0), Op->getOperand(1),
1457 lowerMSASplatImm(Op, 2, DAG));
1458 case Intrinsic::mips_bclr_b:
1459 case Intrinsic::mips_bclr_h:
1460 case Intrinsic::mips_bclr_w:
1461 case Intrinsic::mips_bclr_d:
1462 return lowerMSABitClear(Op, DAG);
1463 case Intrinsic::mips_bclri_b:
1464 case Intrinsic::mips_bclri_h:
1465 case Intrinsic::mips_bclri_w:
1466 case Intrinsic::mips_bclri_d:
1467 return lowerMSABitClearImm(Op, DAG);
1468 case Intrinsic::mips_binsli_b:
1469 case Intrinsic::mips_binsli_h:
1470 case Intrinsic::mips_binsli_w:
1471 case Intrinsic::mips_binsli_d: {
1472 EVT VecTy = Op->getValueType(0);
1473 EVT EltTy = VecTy.getVectorElementType();
1474 APInt Mask = APInt::getHighBitsSet(EltTy.getSizeInBits(),
1475 Op->getConstantOperandVal(3));
1476 return DAG.getNode(ISD::VSELECT, DL, VecTy,
1477 DAG.getConstant(Mask, VecTy, true), Op->getOperand(1),
1480 case Intrinsic::mips_binsri_b:
1481 case Intrinsic::mips_binsri_h:
1482 case Intrinsic::mips_binsri_w:
1483 case Intrinsic::mips_binsri_d: {
1484 EVT VecTy = Op->getValueType(0);
1485 EVT EltTy = VecTy.getVectorElementType();
1486 APInt Mask = APInt::getLowBitsSet(EltTy.getSizeInBits(),
1487 Op->getConstantOperandVal(3));
1488 return DAG.getNode(ISD::VSELECT, DL, VecTy,
1489 DAG.getConstant(Mask, VecTy, true), Op->getOperand(1),
1492 case Intrinsic::mips_bmnz_v:
1493 return DAG.getNode(ISD::VSELECT, DL, Op->getValueType(0), Op->getOperand(3),
1494 Op->getOperand(2), Op->getOperand(1));
1495 case Intrinsic::mips_bmnzi_b:
1496 return DAG.getNode(ISD::VSELECT, DL, Op->getValueType(0),
1497 lowerMSASplatImm(Op, 3, DAG), Op->getOperand(2),
1499 case Intrinsic::mips_bmz_v:
1500 return DAG.getNode(ISD::VSELECT, DL, Op->getValueType(0), Op->getOperand(3),
1501 Op->getOperand(1), Op->getOperand(2));
1502 case Intrinsic::mips_bmzi_b:
1503 return DAG.getNode(ISD::VSELECT, DL, Op->getValueType(0),
1504 lowerMSASplatImm(Op, 3, DAG), Op->getOperand(1),
1506 case Intrinsic::mips_bneg_b:
1507 case Intrinsic::mips_bneg_h:
1508 case Intrinsic::mips_bneg_w:
1509 case Intrinsic::mips_bneg_d: {
1510 EVT VecTy = Op->getValueType(0);
1511 SDValue One = DAG.getConstant(1, VecTy);
1513 return DAG.getNode(ISD::XOR, DL, VecTy, Op->getOperand(1),
1514 DAG.getNode(ISD::SHL, DL, VecTy, One,
1515 Op->getOperand(2)));
1517 case Intrinsic::mips_bnegi_b:
1518 case Intrinsic::mips_bnegi_h:
1519 case Intrinsic::mips_bnegi_w:
1520 case Intrinsic::mips_bnegi_d:
1521 return lowerMSABinaryBitImmIntr(Op, DAG, ISD::XOR, Op->getOperand(2),
1522 !Subtarget->isLittle());
1523 case Intrinsic::mips_bnz_b:
1524 case Intrinsic::mips_bnz_h:
1525 case Intrinsic::mips_bnz_w:
1526 case Intrinsic::mips_bnz_d:
1527 return DAG.getNode(MipsISD::VALL_NONZERO, DL, Op->getValueType(0),
1529 case Intrinsic::mips_bnz_v:
1530 return DAG.getNode(MipsISD::VANY_NONZERO, DL, Op->getValueType(0),
1532 case Intrinsic::mips_bsel_v:
1533 return DAG.getNode(ISD::VSELECT, DL, Op->getValueType(0),
1534 Op->getOperand(1), Op->getOperand(2),
1536 case Intrinsic::mips_bseli_b:
1537 return DAG.getNode(ISD::VSELECT, DL, Op->getValueType(0),
1538 Op->getOperand(1), Op->getOperand(2),
1539 lowerMSASplatImm(Op, 3, DAG));
1540 case Intrinsic::mips_bset_b:
1541 case Intrinsic::mips_bset_h:
1542 case Intrinsic::mips_bset_w:
1543 case Intrinsic::mips_bset_d: {
1544 EVT VecTy = Op->getValueType(0);
1545 SDValue One = DAG.getConstant(1, VecTy);
1547 return DAG.getNode(ISD::OR, DL, VecTy, Op->getOperand(1),
1548 DAG.getNode(ISD::SHL, DL, VecTy, One,
1549 Op->getOperand(2)));
1551 case Intrinsic::mips_bseti_b:
1552 case Intrinsic::mips_bseti_h:
1553 case Intrinsic::mips_bseti_w:
1554 case Intrinsic::mips_bseti_d:
1555 return lowerMSABinaryBitImmIntr(Op, DAG, ISD::OR, Op->getOperand(2),
1556 !Subtarget->isLittle());
1557 case Intrinsic::mips_bz_b:
1558 case Intrinsic::mips_bz_h:
1559 case Intrinsic::mips_bz_w:
1560 case Intrinsic::mips_bz_d:
1561 return DAG.getNode(MipsISD::VALL_ZERO, DL, Op->getValueType(0),
1563 case Intrinsic::mips_bz_v:
1564 return DAG.getNode(MipsISD::VANY_ZERO, DL, Op->getValueType(0),
1566 case Intrinsic::mips_ceq_b:
1567 case Intrinsic::mips_ceq_h:
1568 case Intrinsic::mips_ceq_w:
1569 case Intrinsic::mips_ceq_d:
1570 return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
1571 Op->getOperand(2), ISD::SETEQ);
1572 case Intrinsic::mips_ceqi_b:
1573 case Intrinsic::mips_ceqi_h:
1574 case Intrinsic::mips_ceqi_w:
1575 case Intrinsic::mips_ceqi_d:
1576 return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
1577 lowerMSASplatImm(Op, 2, DAG), ISD::SETEQ);
1578 case Intrinsic::mips_cle_s_b:
1579 case Intrinsic::mips_cle_s_h:
1580 case Intrinsic::mips_cle_s_w:
1581 case Intrinsic::mips_cle_s_d:
1582 return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
1583 Op->getOperand(2), ISD::SETLE);
1584 case Intrinsic::mips_clei_s_b:
1585 case Intrinsic::mips_clei_s_h:
1586 case Intrinsic::mips_clei_s_w:
1587 case Intrinsic::mips_clei_s_d:
1588 return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
1589 lowerMSASplatImm(Op, 2, DAG), ISD::SETLE);
1590 case Intrinsic::mips_cle_u_b:
1591 case Intrinsic::mips_cle_u_h:
1592 case Intrinsic::mips_cle_u_w:
1593 case Intrinsic::mips_cle_u_d:
1594 return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
1595 Op->getOperand(2), ISD::SETULE);
1596 case Intrinsic::mips_clei_u_b:
1597 case Intrinsic::mips_clei_u_h:
1598 case Intrinsic::mips_clei_u_w:
1599 case Intrinsic::mips_clei_u_d:
1600 return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
1601 lowerMSASplatImm(Op, 2, DAG), ISD::SETULE);
1602 case Intrinsic::mips_clt_s_b:
1603 case Intrinsic::mips_clt_s_h:
1604 case Intrinsic::mips_clt_s_w:
1605 case Intrinsic::mips_clt_s_d:
1606 return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
1607 Op->getOperand(2), ISD::SETLT);
1608 case Intrinsic::mips_clti_s_b:
1609 case Intrinsic::mips_clti_s_h:
1610 case Intrinsic::mips_clti_s_w:
1611 case Intrinsic::mips_clti_s_d:
1612 return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
1613 lowerMSASplatImm(Op, 2, DAG), ISD::SETLT);
1614 case Intrinsic::mips_clt_u_b:
1615 case Intrinsic::mips_clt_u_h:
1616 case Intrinsic::mips_clt_u_w:
1617 case Intrinsic::mips_clt_u_d:
1618 return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
1619 Op->getOperand(2), ISD::SETULT);
1620 case Intrinsic::mips_clti_u_b:
1621 case Intrinsic::mips_clti_u_h:
1622 case Intrinsic::mips_clti_u_w:
1623 case Intrinsic::mips_clti_u_d:
1624 return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
1625 lowerMSASplatImm(Op, 2, DAG), ISD::SETULT);
1626 case Intrinsic::mips_copy_s_b:
1627 case Intrinsic::mips_copy_s_h:
1628 case Intrinsic::mips_copy_s_w:
1629 return lowerMSACopyIntr(Op, DAG, MipsISD::VEXTRACT_SEXT_ELT);
1630 case Intrinsic::mips_copy_s_d:
1631 // Don't lower directly into VEXTRACT_SEXT_ELT since i64 might be illegal.
1632 // Instead lower to the generic EXTRACT_VECTOR_ELT node and let the type
1633 // legalizer and EXTRACT_VECTOR_ELT lowering sort it out.
1634 return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, SDLoc(Op), Op->getValueType(0),
1635 Op->getOperand(1), Op->getOperand(2));
1636 case Intrinsic::mips_copy_u_b:
1637 case Intrinsic::mips_copy_u_h:
1638 case Intrinsic::mips_copy_u_w:
1639 return lowerMSACopyIntr(Op, DAG, MipsISD::VEXTRACT_ZEXT_ELT);
1640 case Intrinsic::mips_copy_u_d:
1641 // Don't lower directly into VEXTRACT_ZEXT_ELT since i64 might be illegal.
1642 // Instead lower to the generic EXTRACT_VECTOR_ELT node and let the type
1643 // legalizer and EXTRACT_VECTOR_ELT lowering sort it out.
1645 // Note: When i64 is illegal, this results in copy_s.w instructions instead
1646 // of copy_u.w instructions. This makes no difference to the behaviour
1647 // since i64 is only illegal when the register file is 32-bit.
1648 return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, SDLoc(Op), Op->getValueType(0),
1649 Op->getOperand(1), Op->getOperand(2));
1650 case Intrinsic::mips_div_s_b:
1651 case Intrinsic::mips_div_s_h:
1652 case Intrinsic::mips_div_s_w:
1653 case Intrinsic::mips_div_s_d:
1654 return DAG.getNode(ISD::SDIV, DL, Op->getValueType(0), Op->getOperand(1),
1656 case Intrinsic::mips_div_u_b:
1657 case Intrinsic::mips_div_u_h:
1658 case Intrinsic::mips_div_u_w:
1659 case Intrinsic::mips_div_u_d:
1660 return DAG.getNode(ISD::UDIV, DL, Op->getValueType(0), Op->getOperand(1),
1662 case Intrinsic::mips_fadd_w:
1663 case Intrinsic::mips_fadd_d:
1664 return DAG.getNode(ISD::FADD, DL, Op->getValueType(0), Op->getOperand(1),
1666 // Don't lower mips_fcaf_[wd] since LLVM folds SETFALSE condcodes away
1667 case Intrinsic::mips_fceq_w:
1668 case Intrinsic::mips_fceq_d:
1669 return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
1670 Op->getOperand(2), ISD::SETOEQ);
1671 case Intrinsic::mips_fcle_w:
1672 case Intrinsic::mips_fcle_d:
1673 return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
1674 Op->getOperand(2), ISD::SETOLE);
1675 case Intrinsic::mips_fclt_w:
1676 case Intrinsic::mips_fclt_d:
1677 return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
1678 Op->getOperand(2), ISD::SETOLT);
1679 case Intrinsic::mips_fcne_w:
1680 case Intrinsic::mips_fcne_d:
1681 return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
1682 Op->getOperand(2), ISD::SETONE);
1683 case Intrinsic::mips_fcor_w:
1684 case Intrinsic::mips_fcor_d:
1685 return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
1686 Op->getOperand(2), ISD::SETO);
1687 case Intrinsic::mips_fcueq_w:
1688 case Intrinsic::mips_fcueq_d:
1689 return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
1690 Op->getOperand(2), ISD::SETUEQ);
1691 case Intrinsic::mips_fcule_w:
1692 case Intrinsic::mips_fcule_d:
1693 return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
1694 Op->getOperand(2), ISD::SETULE);
1695 case Intrinsic::mips_fcult_w:
1696 case Intrinsic::mips_fcult_d:
1697 return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
1698 Op->getOperand(2), ISD::SETULT);
1699 case Intrinsic::mips_fcun_w:
1700 case Intrinsic::mips_fcun_d:
1701 return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
1702 Op->getOperand(2), ISD::SETUO);
1703 case Intrinsic::mips_fcune_w:
1704 case Intrinsic::mips_fcune_d:
1705 return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
1706 Op->getOperand(2), ISD::SETUNE);
1707 case Intrinsic::mips_fdiv_w:
1708 case Intrinsic::mips_fdiv_d:
1709 return DAG.getNode(ISD::FDIV, DL, Op->getValueType(0), Op->getOperand(1),
1711 case Intrinsic::mips_ffint_u_w:
1712 case Intrinsic::mips_ffint_u_d:
1713 return DAG.getNode(ISD::UINT_TO_FP, DL, Op->getValueType(0),
1715 case Intrinsic::mips_ffint_s_w:
1716 case Intrinsic::mips_ffint_s_d:
1717 return DAG.getNode(ISD::SINT_TO_FP, DL, Op->getValueType(0),
1719 case Intrinsic::mips_fill_b:
1720 case Intrinsic::mips_fill_h:
1721 case Intrinsic::mips_fill_w:
1722 case Intrinsic::mips_fill_d: {
1723 SmallVector<SDValue, 16> Ops;
1724 EVT ResTy = Op->getValueType(0);
1726 for (unsigned i = 0; i < ResTy.getVectorNumElements(); ++i)
1727 Ops.push_back(Op->getOperand(1));
1729 // If ResTy is v2i64 then the type legalizer will break this node down into
1730 // an equivalent v4i32.
1731 return DAG.getNode(ISD::BUILD_VECTOR, DL, ResTy, &Ops[0], Ops.size());
1733 case Intrinsic::mips_fexp2_w:
1734 case Intrinsic::mips_fexp2_d: {
1735 EVT ResTy = Op->getValueType(0);
1737 ISD::FMUL, SDLoc(Op), ResTy, Op->getOperand(1),
1738 DAG.getNode(ISD::FEXP2, SDLoc(Op), ResTy, Op->getOperand(2)));
1740 case Intrinsic::mips_flog2_w:
1741 case Intrinsic::mips_flog2_d:
1742 return DAG.getNode(ISD::FLOG2, DL, Op->getValueType(0), Op->getOperand(1));
1743 case Intrinsic::mips_fmadd_w:
1744 case Intrinsic::mips_fmadd_d:
1745 return DAG.getNode(ISD::FMA, SDLoc(Op), Op->getValueType(0),
1746 Op->getOperand(1), Op->getOperand(2), Op->getOperand(3));
1747 case Intrinsic::mips_fmul_w:
1748 case Intrinsic::mips_fmul_d:
1749 return DAG.getNode(ISD::FMUL, DL, Op->getValueType(0), Op->getOperand(1),
1751 case Intrinsic::mips_fmsub_w:
1752 case Intrinsic::mips_fmsub_d: {
1753 EVT ResTy = Op->getValueType(0);
1754 return DAG.getNode(ISD::FSUB, SDLoc(Op), ResTy, Op->getOperand(1),
1755 DAG.getNode(ISD::FMUL, SDLoc(Op), ResTy,
1756 Op->getOperand(2), Op->getOperand(3)));
1758 case Intrinsic::mips_frint_w:
1759 case Intrinsic::mips_frint_d:
1760 return DAG.getNode(ISD::FRINT, DL, Op->getValueType(0), Op->getOperand(1));
1761 case Intrinsic::mips_fsqrt_w:
1762 case Intrinsic::mips_fsqrt_d:
1763 return DAG.getNode(ISD::FSQRT, DL, Op->getValueType(0), Op->getOperand(1));
1764 case Intrinsic::mips_fsub_w:
1765 case Intrinsic::mips_fsub_d:
1766 return DAG.getNode(ISD::FSUB, DL, Op->getValueType(0), Op->getOperand(1),
1768 case Intrinsic::mips_ftrunc_u_w:
1769 case Intrinsic::mips_ftrunc_u_d:
1770 return DAG.getNode(ISD::FP_TO_UINT, DL, Op->getValueType(0),
1772 case Intrinsic::mips_ftrunc_s_w:
1773 case Intrinsic::mips_ftrunc_s_d:
1774 return DAG.getNode(ISD::FP_TO_SINT, DL, Op->getValueType(0),
1776 case Intrinsic::mips_ilvev_b:
1777 case Intrinsic::mips_ilvev_h:
1778 case Intrinsic::mips_ilvev_w:
1779 case Intrinsic::mips_ilvev_d:
1780 return DAG.getNode(MipsISD::ILVEV, DL, Op->getValueType(0),
1781 Op->getOperand(1), Op->getOperand(2));
1782 case Intrinsic::mips_ilvl_b:
1783 case Intrinsic::mips_ilvl_h:
1784 case Intrinsic::mips_ilvl_w:
1785 case Intrinsic::mips_ilvl_d:
1786 return DAG.getNode(MipsISD::ILVL, DL, Op->getValueType(0),
1787 Op->getOperand(1), Op->getOperand(2));
1788 case Intrinsic::mips_ilvod_b:
1789 case Intrinsic::mips_ilvod_h:
1790 case Intrinsic::mips_ilvod_w:
1791 case Intrinsic::mips_ilvod_d:
1792 return DAG.getNode(MipsISD::ILVOD, DL, Op->getValueType(0),
1793 Op->getOperand(1), Op->getOperand(2));
1794 case Intrinsic::mips_ilvr_b:
1795 case Intrinsic::mips_ilvr_h:
1796 case Intrinsic::mips_ilvr_w:
1797 case Intrinsic::mips_ilvr_d:
1798 return DAG.getNode(MipsISD::ILVR, DL, Op->getValueType(0),
1799 Op->getOperand(1), Op->getOperand(2));
1800 case Intrinsic::mips_insert_b:
1801 case Intrinsic::mips_insert_h:
1802 case Intrinsic::mips_insert_w:
1803 case Intrinsic::mips_insert_d:
1804 return DAG.getNode(ISD::INSERT_VECTOR_ELT, SDLoc(Op), Op->getValueType(0),
1805 Op->getOperand(1), Op->getOperand(3), Op->getOperand(2));
1806 case Intrinsic::mips_ldi_b:
1807 case Intrinsic::mips_ldi_h:
1808 case Intrinsic::mips_ldi_w:
1809 case Intrinsic::mips_ldi_d:
1810 return lowerMSASplatImm(Op, 1, DAG);
1811 case Intrinsic::mips_lsa: {
1812 EVT ResTy = Op->getValueType(0);
1813 return DAG.getNode(ISD::ADD, SDLoc(Op), ResTy, Op->getOperand(1),
1814 DAG.getNode(ISD::SHL, SDLoc(Op), ResTy,
1815 Op->getOperand(2), Op->getOperand(3)));
1817 case Intrinsic::mips_maddv_b:
1818 case Intrinsic::mips_maddv_h:
1819 case Intrinsic::mips_maddv_w:
1820 case Intrinsic::mips_maddv_d: {
1821 EVT ResTy = Op->getValueType(0);
1822 return DAG.getNode(ISD::ADD, SDLoc(Op), ResTy, Op->getOperand(1),
1823 DAG.getNode(ISD::MUL, SDLoc(Op), ResTy,
1824 Op->getOperand(2), Op->getOperand(3)));
1826 case Intrinsic::mips_max_s_b:
1827 case Intrinsic::mips_max_s_h:
1828 case Intrinsic::mips_max_s_w:
1829 case Intrinsic::mips_max_s_d:
1830 return DAG.getNode(MipsISD::VSMAX, DL, Op->getValueType(0),
1831 Op->getOperand(1), Op->getOperand(2));
1832 case Intrinsic::mips_max_u_b:
1833 case Intrinsic::mips_max_u_h:
1834 case Intrinsic::mips_max_u_w:
1835 case Intrinsic::mips_max_u_d:
1836 return DAG.getNode(MipsISD::VUMAX, DL, Op->getValueType(0),
1837 Op->getOperand(1), Op->getOperand(2));
1838 case Intrinsic::mips_maxi_s_b:
1839 case Intrinsic::mips_maxi_s_h:
1840 case Intrinsic::mips_maxi_s_w:
1841 case Intrinsic::mips_maxi_s_d:
1842 return DAG.getNode(MipsISD::VSMAX, DL, Op->getValueType(0),
1843 Op->getOperand(1), lowerMSASplatImm(Op, 2, DAG));
1844 case Intrinsic::mips_maxi_u_b:
1845 case Intrinsic::mips_maxi_u_h:
1846 case Intrinsic::mips_maxi_u_w:
1847 case Intrinsic::mips_maxi_u_d:
1848 return DAG.getNode(MipsISD::VUMAX, DL, Op->getValueType(0),
1849 Op->getOperand(1), lowerMSASplatImm(Op, 2, DAG));
1850 case Intrinsic::mips_min_s_b:
1851 case Intrinsic::mips_min_s_h:
1852 case Intrinsic::mips_min_s_w:
1853 case Intrinsic::mips_min_s_d:
1854 return DAG.getNode(MipsISD::VSMIN, DL, Op->getValueType(0),
1855 Op->getOperand(1), Op->getOperand(2));
1856 case Intrinsic::mips_min_u_b:
1857 case Intrinsic::mips_min_u_h:
1858 case Intrinsic::mips_min_u_w:
1859 case Intrinsic::mips_min_u_d:
1860 return DAG.getNode(MipsISD::VUMIN, DL, Op->getValueType(0),
1861 Op->getOperand(1), Op->getOperand(2));
1862 case Intrinsic::mips_mini_s_b:
1863 case Intrinsic::mips_mini_s_h:
1864 case Intrinsic::mips_mini_s_w:
1865 case Intrinsic::mips_mini_s_d:
1866 return DAG.getNode(MipsISD::VSMIN, DL, Op->getValueType(0),
1867 Op->getOperand(1), lowerMSASplatImm(Op, 2, DAG));
1868 case Intrinsic::mips_mini_u_b:
1869 case Intrinsic::mips_mini_u_h:
1870 case Intrinsic::mips_mini_u_w:
1871 case Intrinsic::mips_mini_u_d:
1872 return DAG.getNode(MipsISD::VUMIN, DL, Op->getValueType(0),
1873 Op->getOperand(1), lowerMSASplatImm(Op, 2, DAG));
1874 case Intrinsic::mips_mod_s_b:
1875 case Intrinsic::mips_mod_s_h:
1876 case Intrinsic::mips_mod_s_w:
1877 case Intrinsic::mips_mod_s_d:
1878 return DAG.getNode(ISD::SREM, DL, Op->getValueType(0), Op->getOperand(1),
1880 case Intrinsic::mips_mod_u_b:
1881 case Intrinsic::mips_mod_u_h:
1882 case Intrinsic::mips_mod_u_w:
1883 case Intrinsic::mips_mod_u_d:
1884 return DAG.getNode(ISD::UREM, DL, Op->getValueType(0), Op->getOperand(1),
1886 case Intrinsic::mips_mulv_b:
1887 case Intrinsic::mips_mulv_h:
1888 case Intrinsic::mips_mulv_w:
1889 case Intrinsic::mips_mulv_d:
1890 return DAG.getNode(ISD::MUL, DL, Op->getValueType(0), Op->getOperand(1),
1892 case Intrinsic::mips_msubv_b:
1893 case Intrinsic::mips_msubv_h:
1894 case Intrinsic::mips_msubv_w:
1895 case Intrinsic::mips_msubv_d: {
1896 EVT ResTy = Op->getValueType(0);
1897 return DAG.getNode(ISD::SUB, SDLoc(Op), ResTy, Op->getOperand(1),
1898 DAG.getNode(ISD::MUL, SDLoc(Op), ResTy,
1899 Op->getOperand(2), Op->getOperand(3)));
1901 case Intrinsic::mips_nlzc_b:
1902 case Intrinsic::mips_nlzc_h:
1903 case Intrinsic::mips_nlzc_w:
1904 case Intrinsic::mips_nlzc_d:
1905 return DAG.getNode(ISD::CTLZ, DL, Op->getValueType(0), Op->getOperand(1));
1906 case Intrinsic::mips_nor_v: {
1907 SDValue Res = DAG.getNode(ISD::OR, DL, Op->getValueType(0),
1908 Op->getOperand(1), Op->getOperand(2));
1909 return DAG.getNOT(DL, Res, Res->getValueType(0));
1911 case Intrinsic::mips_nori_b: {
1912 SDValue Res = DAG.getNode(ISD::OR, DL, Op->getValueType(0),
1914 lowerMSASplatImm(Op, 2, DAG));
1915 return DAG.getNOT(DL, Res, Res->getValueType(0));
1917 case Intrinsic::mips_or_v:
1918 return DAG.getNode(ISD::OR, DL, Op->getValueType(0), Op->getOperand(1),
1920 case Intrinsic::mips_ori_b:
1921 return DAG.getNode(ISD::OR, DL, Op->getValueType(0),
1922 Op->getOperand(1), lowerMSASplatImm(Op, 2, DAG));
1923 case Intrinsic::mips_pckev_b:
1924 case Intrinsic::mips_pckev_h:
1925 case Intrinsic::mips_pckev_w:
1926 case Intrinsic::mips_pckev_d:
1927 return DAG.getNode(MipsISD::PCKEV, DL, Op->getValueType(0),
1928 Op->getOperand(1), Op->getOperand(2));
1929 case Intrinsic::mips_pckod_b:
1930 case Intrinsic::mips_pckod_h:
1931 case Intrinsic::mips_pckod_w:
1932 case Intrinsic::mips_pckod_d:
1933 return DAG.getNode(MipsISD::PCKOD, DL, Op->getValueType(0),
1934 Op->getOperand(1), Op->getOperand(2));
1935 case Intrinsic::mips_pcnt_b:
1936 case Intrinsic::mips_pcnt_h:
1937 case Intrinsic::mips_pcnt_w:
1938 case Intrinsic::mips_pcnt_d:
1939 return DAG.getNode(ISD::CTPOP, DL, Op->getValueType(0), Op->getOperand(1));
1940 case Intrinsic::mips_shf_b:
1941 case Intrinsic::mips_shf_h:
1942 case Intrinsic::mips_shf_w:
1943 return DAG.getNode(MipsISD::SHF, DL, Op->getValueType(0),
1944 Op->getOperand(2), Op->getOperand(1));
1945 case Intrinsic::mips_sll_b:
1946 case Intrinsic::mips_sll_h:
1947 case Intrinsic::mips_sll_w:
1948 case Intrinsic::mips_sll_d:
1949 return DAG.getNode(ISD::SHL, DL, Op->getValueType(0), Op->getOperand(1),
1951 case Intrinsic::mips_slli_b:
1952 case Intrinsic::mips_slli_h:
1953 case Intrinsic::mips_slli_w:
1954 case Intrinsic::mips_slli_d:
1955 return DAG.getNode(ISD::SHL, DL, Op->getValueType(0),
1956 Op->getOperand(1), lowerMSASplatImm(Op, 2, DAG));
1957 case Intrinsic::mips_splat_b:
1958 case Intrinsic::mips_splat_h:
1959 case Intrinsic::mips_splat_w:
1960 case Intrinsic::mips_splat_d:
1961 // We can't lower via VECTOR_SHUFFLE because it requires constant shuffle
1962 // masks, nor can we lower via BUILD_VECTOR & EXTRACT_VECTOR_ELT because
1963 // EXTRACT_VECTOR_ELT can't extract i64's on MIPS32.
1964 // Instead we lower to MipsISD::VSHF and match from there.
1965 return DAG.getNode(MipsISD::VSHF, DL, Op->getValueType(0),
1966 lowerMSASplatZExt(Op, 2, DAG), Op->getOperand(1),
1968 case Intrinsic::mips_splati_b:
1969 case Intrinsic::mips_splati_h:
1970 case Intrinsic::mips_splati_w:
1971 case Intrinsic::mips_splati_d:
1972 return DAG.getNode(MipsISD::VSHF, DL, Op->getValueType(0),
1973 lowerMSASplatImm(Op, 2, DAG), Op->getOperand(1),
1975 case Intrinsic::mips_sra_b:
1976 case Intrinsic::mips_sra_h:
1977 case Intrinsic::mips_sra_w:
1978 case Intrinsic::mips_sra_d:
1979 return DAG.getNode(ISD::SRA, DL, Op->getValueType(0), Op->getOperand(1),
1981 case Intrinsic::mips_srai_b:
1982 case Intrinsic::mips_srai_h:
1983 case Intrinsic::mips_srai_w:
1984 case Intrinsic::mips_srai_d:
1985 return DAG.getNode(ISD::SRA, DL, Op->getValueType(0),
1986 Op->getOperand(1), lowerMSASplatImm(Op, 2, DAG));
1987 case Intrinsic::mips_srl_b:
1988 case Intrinsic::mips_srl_h:
1989 case Intrinsic::mips_srl_w:
1990 case Intrinsic::mips_srl_d:
1991 return DAG.getNode(ISD::SRL, DL, Op->getValueType(0), Op->getOperand(1),
1993 case Intrinsic::mips_srli_b:
1994 case Intrinsic::mips_srli_h:
1995 case Intrinsic::mips_srli_w:
1996 case Intrinsic::mips_srli_d:
1997 return DAG.getNode(ISD::SRL, DL, Op->getValueType(0),
1998 Op->getOperand(1), lowerMSASplatImm(Op, 2, DAG));
1999 case Intrinsic::mips_subv_b:
2000 case Intrinsic::mips_subv_h:
2001 case Intrinsic::mips_subv_w:
2002 case Intrinsic::mips_subv_d:
2003 return DAG.getNode(ISD::SUB, DL, Op->getValueType(0), Op->getOperand(1),
2005 case Intrinsic::mips_subvi_b:
2006 case Intrinsic::mips_subvi_h:
2007 case Intrinsic::mips_subvi_w:
2008 case Intrinsic::mips_subvi_d:
2009 return DAG.getNode(ISD::SUB, DL, Op->getValueType(0),
2010 Op->getOperand(1), lowerMSASplatImm(Op, 2, DAG));
2011 case Intrinsic::mips_vshf_b:
2012 case Intrinsic::mips_vshf_h:
2013 case Intrinsic::mips_vshf_w:
2014 case Intrinsic::mips_vshf_d:
2015 return DAG.getNode(MipsISD::VSHF, DL, Op->getValueType(0),
2016 Op->getOperand(1), Op->getOperand(2), Op->getOperand(3));
2017 case Intrinsic::mips_xor_v:
2018 return DAG.getNode(ISD::XOR, DL, Op->getValueType(0), Op->getOperand(1),
2020 case Intrinsic::mips_xori_b:
2021 return DAG.getNode(ISD::XOR, DL, Op->getValueType(0),
2022 Op->getOperand(1), lowerMSASplatImm(Op, 2, DAG));
2026 static SDValue lowerMSALoadIntr(SDValue Op, SelectionDAG &DAG, unsigned Intr) {
2028 SDValue ChainIn = Op->getOperand(0);
2029 SDValue Address = Op->getOperand(2);
2030 SDValue Offset = Op->getOperand(3);
2031 EVT ResTy = Op->getValueType(0);
2032 EVT PtrTy = Address->getValueType(0);
2034 Address = DAG.getNode(ISD::ADD, DL, PtrTy, Address, Offset);
2036 return DAG.getLoad(ResTy, DL, ChainIn, Address, MachinePointerInfo(), false,
2040 SDValue MipsSETargetLowering::lowerINTRINSIC_W_CHAIN(SDValue Op,
2041 SelectionDAG &DAG) const {
2042 unsigned Intr = cast<ConstantSDNode>(Op->getOperand(1))->getZExtValue();
2046 case Intrinsic::mips_extp:
2047 return lowerDSPIntr(Op, DAG, MipsISD::EXTP);
2048 case Intrinsic::mips_extpdp:
2049 return lowerDSPIntr(Op, DAG, MipsISD::EXTPDP);
2050 case Intrinsic::mips_extr_w:
2051 return lowerDSPIntr(Op, DAG, MipsISD::EXTR_W);
2052 case Intrinsic::mips_extr_r_w:
2053 return lowerDSPIntr(Op, DAG, MipsISD::EXTR_R_W);
2054 case Intrinsic::mips_extr_rs_w:
2055 return lowerDSPIntr(Op, DAG, MipsISD::EXTR_RS_W);
2056 case Intrinsic::mips_extr_s_h:
2057 return lowerDSPIntr(Op, DAG, MipsISD::EXTR_S_H);
2058 case Intrinsic::mips_mthlip:
2059 return lowerDSPIntr(Op, DAG, MipsISD::MTHLIP);
2060 case Intrinsic::mips_mulsaq_s_w_ph:
2061 return lowerDSPIntr(Op, DAG, MipsISD::MULSAQ_S_W_PH);
2062 case Intrinsic::mips_maq_s_w_phl:
2063 return lowerDSPIntr(Op, DAG, MipsISD::MAQ_S_W_PHL);
2064 case Intrinsic::mips_maq_s_w_phr:
2065 return lowerDSPIntr(Op, DAG, MipsISD::MAQ_S_W_PHR);
2066 case Intrinsic::mips_maq_sa_w_phl:
2067 return lowerDSPIntr(Op, DAG, MipsISD::MAQ_SA_W_PHL);
2068 case Intrinsic::mips_maq_sa_w_phr:
2069 return lowerDSPIntr(Op, DAG, MipsISD::MAQ_SA_W_PHR);
2070 case Intrinsic::mips_dpaq_s_w_ph:
2071 return lowerDSPIntr(Op, DAG, MipsISD::DPAQ_S_W_PH);
2072 case Intrinsic::mips_dpsq_s_w_ph:
2073 return lowerDSPIntr(Op, DAG, MipsISD::DPSQ_S_W_PH);
2074 case Intrinsic::mips_dpaq_sa_l_w:
2075 return lowerDSPIntr(Op, DAG, MipsISD::DPAQ_SA_L_W);
2076 case Intrinsic::mips_dpsq_sa_l_w:
2077 return lowerDSPIntr(Op, DAG, MipsISD::DPSQ_SA_L_W);
2078 case Intrinsic::mips_dpaqx_s_w_ph:
2079 return lowerDSPIntr(Op, DAG, MipsISD::DPAQX_S_W_PH);
2080 case Intrinsic::mips_dpaqx_sa_w_ph:
2081 return lowerDSPIntr(Op, DAG, MipsISD::DPAQX_SA_W_PH);
2082 case Intrinsic::mips_dpsqx_s_w_ph:
2083 return lowerDSPIntr(Op, DAG, MipsISD::DPSQX_S_W_PH);
2084 case Intrinsic::mips_dpsqx_sa_w_ph:
2085 return lowerDSPIntr(Op, DAG, MipsISD::DPSQX_SA_W_PH);
2086 case Intrinsic::mips_ld_b:
2087 case Intrinsic::mips_ld_h:
2088 case Intrinsic::mips_ld_w:
2089 case Intrinsic::mips_ld_d:
2090 return lowerMSALoadIntr(Op, DAG, Intr);
2094 static SDValue lowerMSAStoreIntr(SDValue Op, SelectionDAG &DAG, unsigned Intr) {
2096 SDValue ChainIn = Op->getOperand(0);
2097 SDValue Value = Op->getOperand(2);
2098 SDValue Address = Op->getOperand(3);
2099 SDValue Offset = Op->getOperand(4);
2100 EVT PtrTy = Address->getValueType(0);
2102 Address = DAG.getNode(ISD::ADD, DL, PtrTy, Address, Offset);
2104 return DAG.getStore(ChainIn, DL, Value, Address, MachinePointerInfo(), false,
2108 SDValue MipsSETargetLowering::lowerINTRINSIC_VOID(SDValue Op,
2109 SelectionDAG &DAG) const {
2110 unsigned Intr = cast<ConstantSDNode>(Op->getOperand(1))->getZExtValue();
2114 case Intrinsic::mips_st_b:
2115 case Intrinsic::mips_st_h:
2116 case Intrinsic::mips_st_w:
2117 case Intrinsic::mips_st_d:
2118 return lowerMSAStoreIntr(Op, DAG, Intr);
2122 /// \brief Check if the given BuildVectorSDNode is a splat.
2123 /// This method currently relies on DAG nodes being reused when equivalent,
2124 /// so it's possible for this to return false even when isConstantSplat returns
2126 static bool isSplatVector(const BuildVectorSDNode *N) {
2127 unsigned int nOps = N->getNumOperands();
2128 assert(nOps > 1 && "isSplatVector has 0 or 1 sized build vector");
2130 SDValue Operand0 = N->getOperand(0);
2132 for (unsigned int i = 1; i < nOps; ++i) {
2133 if (N->getOperand(i) != Operand0)
2140 // Lower ISD::EXTRACT_VECTOR_ELT into MipsISD::VEXTRACT_SEXT_ELT.
2142 // The non-value bits resulting from ISD::EXTRACT_VECTOR_ELT are undefined. We
2143 // choose to sign-extend but we could have equally chosen zero-extend. The
2144 // DAGCombiner will fold any sign/zero extension of the ISD::EXTRACT_VECTOR_ELT
2145 // result into this node later (possibly changing it to a zero-extend in the
2147 SDValue MipsSETargetLowering::
2148 lowerEXTRACT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG) const {
2150 EVT ResTy = Op->getValueType(0);
2151 SDValue Op0 = Op->getOperand(0);
2152 EVT VecTy = Op0->getValueType(0);
2154 if (!VecTy.is128BitVector())
2157 if (ResTy.isInteger()) {
2158 SDValue Op1 = Op->getOperand(1);
2159 EVT EltTy = VecTy.getVectorElementType();
2160 return DAG.getNode(MipsISD::VEXTRACT_SEXT_ELT, DL, ResTy, Op0, Op1,
2161 DAG.getValueType(EltTy));
2167 static bool isConstantOrUndef(const SDValue Op) {
2168 if (Op->getOpcode() == ISD::UNDEF)
2170 if (dyn_cast<ConstantSDNode>(Op))
2172 if (dyn_cast<ConstantFPSDNode>(Op))
2177 static bool isConstantOrUndefBUILD_VECTOR(const BuildVectorSDNode *Op) {
2178 for (unsigned i = 0; i < Op->getNumOperands(); ++i)
2179 if (isConstantOrUndef(Op->getOperand(i)))
2184 // Lowers ISD::BUILD_VECTOR into appropriate SelectionDAG nodes for the
2187 // Lowers according to the following rules:
2188 // - Constant splats are legal as-is as long as the SplatBitSize is a power of
2189 // 2 less than or equal to 64 and the value fits into a signed 10-bit
2191 // - Constant splats are lowered to bitconverted BUILD_VECTORs if SplatBitSize
2192 // is a power of 2 less than or equal to 64 and the value does not fit into a
2193 // signed 10-bit immediate
2194 // - Non-constant splats are legal as-is.
2195 // - Non-constant non-splats are lowered to sequences of INSERT_VECTOR_ELT.
2196 // - All others are illegal and must be expanded.
2197 SDValue MipsSETargetLowering::lowerBUILD_VECTOR(SDValue Op,
2198 SelectionDAG &DAG) const {
2199 BuildVectorSDNode *Node = cast<BuildVectorSDNode>(Op);
2200 EVT ResTy = Op->getValueType(0);
2202 APInt SplatValue, SplatUndef;
2203 unsigned SplatBitSize;
2206 if (!Subtarget->hasMSA() || !ResTy.is128BitVector())
2209 if (Node->isConstantSplat(SplatValue, SplatUndef, SplatBitSize,
2211 !Subtarget->isLittle()) && SplatBitSize <= 64) {
2212 // We can only cope with 8, 16, 32, or 64-bit elements
2213 if (SplatBitSize != 8 && SplatBitSize != 16 && SplatBitSize != 32 &&
2217 // If the value fits into a simm10 then we can use ldi.[bhwd]
2218 if (SplatValue.isSignedIntN(10))
2223 switch (SplatBitSize) {
2227 ViaVecTy = MVT::v16i8;
2230 ViaVecTy = MVT::v8i16;
2233 ViaVecTy = MVT::v4i32;
2236 // There's no fill.d to fall back on for 64-bit values
2240 // SelectionDAG::getConstant will promote SplatValue appropriately.
2241 SDValue Result = DAG.getConstant(SplatValue, ViaVecTy);
2243 // Bitcast to the type we originally wanted
2244 if (ViaVecTy != ResTy)
2245 Result = DAG.getNode(ISD::BITCAST, SDLoc(Node), ResTy, Result);
2248 } else if (isSplatVector(Node))
2250 else if (!isConstantOrUndefBUILD_VECTOR(Node)) {
2251 // Use INSERT_VECTOR_ELT operations rather than expand to stores.
2252 // The resulting code is the same length as the expansion, but it doesn't
2253 // use memory operations
2254 EVT ResTy = Node->getValueType(0);
2256 assert(ResTy.isVector());
2258 unsigned NumElts = ResTy.getVectorNumElements();
2259 SDValue Vector = DAG.getUNDEF(ResTy);
2260 for (unsigned i = 0; i < NumElts; ++i) {
2261 Vector = DAG.getNode(ISD::INSERT_VECTOR_ELT, DL, ResTy, Vector,
2262 Node->getOperand(i),
2263 DAG.getConstant(i, MVT::i32));
2271 // Lower VECTOR_SHUFFLE into SHF (if possible).
2273 // SHF splits the vector into blocks of four elements, then shuffles these
2274 // elements according to a <4 x i2> constant (encoded as an integer immediate).
2276 // It is therefore possible to lower into SHF when the mask takes the form:
2277 // <a, b, c, d, a+4, b+4, c+4, d+4, a+8, b+8, c+8, d+8, ...>
2278 // When undef's appear they are treated as if they were whatever value is
2279 // necessary in order to fit the above form.
2282 // %2 = shufflevector <8 x i16> %0, <8 x i16> undef,
2283 // <8 x i32> <i32 3, i32 2, i32 1, i32 0,
2284 // i32 7, i32 6, i32 5, i32 4>
2286 // (SHF_H $w0, $w1, 27)
2287 // where the 27 comes from:
2288 // 3 + (2 << 2) + (1 << 4) + (0 << 6)
2289 static SDValue lowerVECTOR_SHUFFLE_SHF(SDValue Op, EVT ResTy,
2290 SmallVector<int, 16> Indices,
2291 SelectionDAG &DAG) {
2292 int SHFIndices[4] = { -1, -1, -1, -1 };
2294 if (Indices.size() < 4)
2297 for (unsigned i = 0; i < 4; ++i) {
2298 for (unsigned j = i; j < Indices.size(); j += 4) {
2299 int Idx = Indices[j];
2301 // Convert from vector index to 4-element subvector index
2302 // If an index refers to an element outside of the subvector then give up
2305 if (Idx < 0 || Idx >= 4)
2309 // If the mask has an undef, replace it with the current index.
2310 // Note that it might still be undef if the current index is also undef
2311 if (SHFIndices[i] == -1)
2312 SHFIndices[i] = Idx;
2314 // Check that non-undef values are the same as in the mask. If they
2315 // aren't then give up
2316 if (!(Idx == -1 || Idx == SHFIndices[i]))
2321 // Calculate the immediate. Replace any remaining undefs with zero
2323 for (int i = 3; i >= 0; --i) {
2324 int Idx = SHFIndices[i];
2333 return DAG.getNode(MipsISD::SHF, SDLoc(Op), ResTy,
2334 DAG.getConstant(Imm, MVT::i32), Op->getOperand(0));
2337 // Lower VECTOR_SHUFFLE into ILVEV (if possible).
2339 // ILVEV interleaves the even elements from each vector.
2341 // It is possible to lower into ILVEV when the mask takes the form:
2342 // <0, n, 2, n+2, 4, n+4, ...>
2343 // where n is the number of elements in the vector.
2345 // When undef's appear in the mask they are treated as if they were whatever
2346 // value is necessary in order to fit the above form.
2347 static SDValue lowerVECTOR_SHUFFLE_ILVEV(SDValue Op, EVT ResTy,
2348 SmallVector<int, 16> Indices,
2349 SelectionDAG &DAG) {
2350 assert ((Indices.size() % 2) == 0);
2352 int WtIdx = ResTy.getVectorNumElements();
2354 for (unsigned i = 0; i < Indices.size(); i += 2) {
2355 if (Indices[i] != -1 && Indices[i] != WsIdx)
2357 if (Indices[i+1] != -1 && Indices[i+1] != WtIdx)
2363 return DAG.getNode(MipsISD::ILVEV, SDLoc(Op), ResTy, Op->getOperand(0),
2367 // Lower VECTOR_SHUFFLE into ILVOD (if possible).
2369 // ILVOD interleaves the odd elements from each vector.
2371 // It is possible to lower into ILVOD when the mask takes the form:
2372 // <1, n+1, 3, n+3, 5, n+5, ...>
2373 // where n is the number of elements in the vector.
2375 // When undef's appear in the mask they are treated as if they were whatever
2376 // value is necessary in order to fit the above form.
2377 static SDValue lowerVECTOR_SHUFFLE_ILVOD(SDValue Op, EVT ResTy,
2378 SmallVector<int, 16> Indices,
2379 SelectionDAG &DAG) {
2380 assert ((Indices.size() % 2) == 0);
2382 int WtIdx = ResTy.getVectorNumElements() + 1;
2384 for (unsigned i = 0; i < Indices.size(); i += 2) {
2385 if (Indices[i] != -1 && Indices[i] != WsIdx)
2387 if (Indices[i+1] != -1 && Indices[i+1] != WtIdx)
2393 return DAG.getNode(MipsISD::ILVOD, SDLoc(Op), ResTy, Op->getOperand(0),
2397 // Lower VECTOR_SHUFFLE into ILVL (if possible).
2399 // ILVL interleaves consecutive elements from the left half of each vector.
2401 // It is possible to lower into ILVL when the mask takes the form:
2402 // <0, n, 1, n+1, 2, n+2, ...>
2403 // where n is the number of elements in the vector.
2405 // When undef's appear in the mask they are treated as if they were whatever
2406 // value is necessary in order to fit the above form.
2407 static SDValue lowerVECTOR_SHUFFLE_ILVL(SDValue Op, EVT ResTy,
2408 SmallVector<int, 16> Indices,
2409 SelectionDAG &DAG) {
2410 assert ((Indices.size() % 2) == 0);
2412 int WtIdx = ResTy.getVectorNumElements();
2414 for (unsigned i = 0; i < Indices.size(); i += 2) {
2415 if (Indices[i] != -1 && Indices[i] != WsIdx)
2417 if (Indices[i+1] != -1 && Indices[i+1] != WtIdx)
2423 return DAG.getNode(MipsISD::ILVL, SDLoc(Op), ResTy, Op->getOperand(0),
2427 // Lower VECTOR_SHUFFLE into ILVR (if possible).
2429 // ILVR interleaves consecutive elements from the right half of each vector.
2431 // It is possible to lower into ILVR when the mask takes the form:
2432 // <x, n+x, x+1, n+x+1, x+2, n+x+2, ...>
2433 // where n is the number of elements in the vector and x is half n.
2435 // When undef's appear in the mask they are treated as if they were whatever
2436 // value is necessary in order to fit the above form.
2437 static SDValue lowerVECTOR_SHUFFLE_ILVR(SDValue Op, EVT ResTy,
2438 SmallVector<int, 16> Indices,
2439 SelectionDAG &DAG) {
2440 assert ((Indices.size() % 2) == 0);
2441 unsigned NumElts = ResTy.getVectorNumElements();
2442 int WsIdx = NumElts / 2;
2443 int WtIdx = NumElts + NumElts / 2;
2445 for (unsigned i = 0; i < Indices.size(); i += 2) {
2446 if (Indices[i] != -1 && Indices[i] != WsIdx)
2448 if (Indices[i+1] != -1 && Indices[i+1] != WtIdx)
2454 return DAG.getNode(MipsISD::ILVR, SDLoc(Op), ResTy, Op->getOperand(0),
2458 // Lower VECTOR_SHUFFLE into PCKEV (if possible).
2460 // PCKEV copies the even elements of each vector into the result vector.
2462 // It is possible to lower into PCKEV when the mask takes the form:
2463 // <0, 2, 4, ..., n, n+2, n+4, ...>
2464 // where n is the number of elements in the vector.
2466 // When undef's appear in the mask they are treated as if they were whatever
2467 // value is necessary in order to fit the above form.
2468 static SDValue lowerVECTOR_SHUFFLE_PCKEV(SDValue Op, EVT ResTy,
2469 SmallVector<int, 16> Indices,
2470 SelectionDAG &DAG) {
2471 assert ((Indices.size() % 2) == 0);
2474 for (unsigned i = 0; i < Indices.size(); ++i) {
2475 if (Indices[i] != -1 && Indices[i] != Idx)
2480 return DAG.getNode(MipsISD::PCKEV, SDLoc(Op), ResTy, Op->getOperand(0),
2484 // Lower VECTOR_SHUFFLE into PCKOD (if possible).
2486 // PCKOD copies the odd elements of each vector into the result vector.
2488 // It is possible to lower into PCKOD when the mask takes the form:
2489 // <1, 3, 5, ..., n+1, n+3, n+5, ...>
2490 // where n is the number of elements in the vector.
2492 // When undef's appear in the mask they are treated as if they were whatever
2493 // value is necessary in order to fit the above form.
2494 static SDValue lowerVECTOR_SHUFFLE_PCKOD(SDValue Op, EVT ResTy,
2495 SmallVector<int, 16> Indices,
2496 SelectionDAG &DAG) {
2497 assert ((Indices.size() % 2) == 0);
2500 for (unsigned i = 0; i < Indices.size(); ++i) {
2501 if (Indices[i] != -1 && Indices[i] != Idx)
2506 return DAG.getNode(MipsISD::PCKOD, SDLoc(Op), ResTy, Op->getOperand(0),
2510 // Lower VECTOR_SHUFFLE into VSHF.
2512 // This mostly consists of converting the shuffle indices in Indices into a
2513 // BUILD_VECTOR and adding it as an operand to the resulting VSHF. There is
2514 // also code to eliminate unused operands of the VECTOR_SHUFFLE. For example,
2515 // if the type is v8i16 and all the indices are less than 8 then the second
2516 // operand is unused and can be replaced with anything. We choose to replace it
2517 // with the used operand since this reduces the number of instructions overall.
2518 static SDValue lowerVECTOR_SHUFFLE_VSHF(SDValue Op, EVT ResTy,
2519 SmallVector<int, 16> Indices,
2520 SelectionDAG &DAG) {
2521 SmallVector<SDValue, 16> Ops;
2524 EVT MaskVecTy = ResTy.changeVectorElementTypeToInteger();
2525 EVT MaskEltTy = MaskVecTy.getVectorElementType();
2526 bool Using1stVec = false;
2527 bool Using2ndVec = false;
2529 int ResTyNumElts = ResTy.getVectorNumElements();
2531 for (int i = 0; i < ResTyNumElts; ++i) {
2532 // Idx == -1 means UNDEF
2533 int Idx = Indices[i];
2535 if (0 <= Idx && Idx < ResTyNumElts)
2537 if (ResTyNumElts <= Idx && Idx < ResTyNumElts * 2)
2541 for (SmallVector<int, 16>::iterator I = Indices.begin(); I != Indices.end();
2543 Ops.push_back(DAG.getTargetConstant(*I, MaskEltTy));
2545 SDValue MaskVec = DAG.getNode(ISD::BUILD_VECTOR, DL, MaskVecTy, &Ops[0],
2548 if (Using1stVec && Using2ndVec) {
2549 Op0 = Op->getOperand(0);
2550 Op1 = Op->getOperand(1);
2551 } else if (Using1stVec)
2552 Op0 = Op1 = Op->getOperand(0);
2553 else if (Using2ndVec)
2554 Op0 = Op1 = Op->getOperand(1);
2556 llvm_unreachable("shuffle vector mask references neither vector operand?");
2558 return DAG.getNode(MipsISD::VSHF, DL, ResTy, MaskVec, Op0, Op1);
2561 // Lower VECTOR_SHUFFLE into one of a number of instructions depending on the
2562 // indices in the shuffle.
2563 SDValue MipsSETargetLowering::lowerVECTOR_SHUFFLE(SDValue Op,
2564 SelectionDAG &DAG) const {
2565 ShuffleVectorSDNode *Node = cast<ShuffleVectorSDNode>(Op);
2566 EVT ResTy = Op->getValueType(0);
2568 if (!ResTy.is128BitVector())
2571 int ResTyNumElts = ResTy.getVectorNumElements();
2572 SmallVector<int, 16> Indices;
2574 for (int i = 0; i < ResTyNumElts; ++i)
2575 Indices.push_back(Node->getMaskElt(i));
2577 SDValue Result = lowerVECTOR_SHUFFLE_SHF(Op, ResTy, Indices, DAG);
2578 if (Result.getNode())
2580 Result = lowerVECTOR_SHUFFLE_ILVEV(Op, ResTy, Indices, DAG);
2581 if (Result.getNode())
2583 Result = lowerVECTOR_SHUFFLE_ILVOD(Op, ResTy, Indices, DAG);
2584 if (Result.getNode())
2586 Result = lowerVECTOR_SHUFFLE_ILVL(Op, ResTy, Indices, DAG);
2587 if (Result.getNode())
2589 Result = lowerVECTOR_SHUFFLE_ILVR(Op, ResTy, Indices, DAG);
2590 if (Result.getNode())
2592 Result = lowerVECTOR_SHUFFLE_PCKEV(Op, ResTy, Indices, DAG);
2593 if (Result.getNode())
2595 Result = lowerVECTOR_SHUFFLE_PCKOD(Op, ResTy, Indices, DAG);
2596 if (Result.getNode())
2598 return lowerVECTOR_SHUFFLE_VSHF(Op, ResTy, Indices, DAG);
2601 MachineBasicBlock * MipsSETargetLowering::
2602 emitBPOSGE32(MachineInstr *MI, MachineBasicBlock *BB) const{
2604 // bposge32_pseudo $vr0
2614 // $vr0 = phi($vr2, $fbb, $vr1, $tbb)
2616 MachineRegisterInfo &RegInfo = BB->getParent()->getRegInfo();
2617 const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
2618 const TargetRegisterClass *RC = &Mips::GPR32RegClass;
2619 DebugLoc DL = MI->getDebugLoc();
2620 const BasicBlock *LLVM_BB = BB->getBasicBlock();
2621 MachineFunction::iterator It = llvm::next(MachineFunction::iterator(BB));
2622 MachineFunction *F = BB->getParent();
2623 MachineBasicBlock *FBB = F->CreateMachineBasicBlock(LLVM_BB);
2624 MachineBasicBlock *TBB = F->CreateMachineBasicBlock(LLVM_BB);
2625 MachineBasicBlock *Sink = F->CreateMachineBasicBlock(LLVM_BB);
2628 F->insert(It, Sink);
2630 // Transfer the remainder of BB and its successor edges to Sink.
2631 Sink->splice(Sink->begin(), BB, llvm::next(MachineBasicBlock::iterator(MI)),
2633 Sink->transferSuccessorsAndUpdatePHIs(BB);
2636 BB->addSuccessor(FBB);
2637 BB->addSuccessor(TBB);
2638 FBB->addSuccessor(Sink);
2639 TBB->addSuccessor(Sink);
2641 // Insert the real bposge32 instruction to $BB.
2642 BuildMI(BB, DL, TII->get(Mips::BPOSGE32)).addMBB(TBB);
2645 unsigned VR2 = RegInfo.createVirtualRegister(RC);
2646 BuildMI(*FBB, FBB->end(), DL, TII->get(Mips::ADDiu), VR2)
2647 .addReg(Mips::ZERO).addImm(0);
2648 BuildMI(*FBB, FBB->end(), DL, TII->get(Mips::B)).addMBB(Sink);
2651 unsigned VR1 = RegInfo.createVirtualRegister(RC);
2652 BuildMI(*TBB, TBB->end(), DL, TII->get(Mips::ADDiu), VR1)
2653 .addReg(Mips::ZERO).addImm(1);
2655 // Insert phi function to $Sink.
2656 BuildMI(*Sink, Sink->begin(), DL, TII->get(Mips::PHI),
2657 MI->getOperand(0).getReg())
2658 .addReg(VR2).addMBB(FBB).addReg(VR1).addMBB(TBB);
2660 MI->eraseFromParent(); // The pseudo instruction is gone now.
2664 MachineBasicBlock * MipsSETargetLowering::
2665 emitMSACBranchPseudo(MachineInstr *MI, MachineBasicBlock *BB,
2666 unsigned BranchOp) const{
2668 // vany_nonzero $rd, $ws
2679 // $rd = phi($rd1, $fbb, $rd2, $tbb)
2681 MachineRegisterInfo &RegInfo = BB->getParent()->getRegInfo();
2682 const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
2683 const TargetRegisterClass *RC = &Mips::GPR32RegClass;
2684 DebugLoc DL = MI->getDebugLoc();
2685 const BasicBlock *LLVM_BB = BB->getBasicBlock();
2686 MachineFunction::iterator It = llvm::next(MachineFunction::iterator(BB));
2687 MachineFunction *F = BB->getParent();
2688 MachineBasicBlock *FBB = F->CreateMachineBasicBlock(LLVM_BB);
2689 MachineBasicBlock *TBB = F->CreateMachineBasicBlock(LLVM_BB);
2690 MachineBasicBlock *Sink = F->CreateMachineBasicBlock(LLVM_BB);
2693 F->insert(It, Sink);
2695 // Transfer the remainder of BB and its successor edges to Sink.
2696 Sink->splice(Sink->begin(), BB, llvm::next(MachineBasicBlock::iterator(MI)),
2698 Sink->transferSuccessorsAndUpdatePHIs(BB);
2701 BB->addSuccessor(FBB);
2702 BB->addSuccessor(TBB);
2703 FBB->addSuccessor(Sink);
2704 TBB->addSuccessor(Sink);
2706 // Insert the real bnz.b instruction to $BB.
2707 BuildMI(BB, DL, TII->get(BranchOp))
2708 .addReg(MI->getOperand(1).getReg())
2712 unsigned RD1 = RegInfo.createVirtualRegister(RC);
2713 BuildMI(*FBB, FBB->end(), DL, TII->get(Mips::ADDiu), RD1)
2714 .addReg(Mips::ZERO).addImm(0);
2715 BuildMI(*FBB, FBB->end(), DL, TII->get(Mips::B)).addMBB(Sink);
2718 unsigned RD2 = RegInfo.createVirtualRegister(RC);
2719 BuildMI(*TBB, TBB->end(), DL, TII->get(Mips::ADDiu), RD2)
2720 .addReg(Mips::ZERO).addImm(1);
2722 // Insert phi function to $Sink.
2723 BuildMI(*Sink, Sink->begin(), DL, TII->get(Mips::PHI),
2724 MI->getOperand(0).getReg())
2725 .addReg(RD1).addMBB(FBB).addReg(RD2).addMBB(TBB);
2727 MI->eraseFromParent(); // The pseudo instruction is gone now.
2731 // Emit the COPY_FW pseudo instruction.
2733 // copy_fw_pseudo $fd, $ws, n
2735 // copy_u_w $rt, $ws, $n
2738 // When n is zero, the equivalent operation can be performed with (potentially)
2739 // zero instructions due to register overlaps. This optimization is never valid
2740 // for lane 1 because it would require FR=0 mode which isn't supported by MSA.
2741 MachineBasicBlock * MipsSETargetLowering::
2742 emitCOPY_FW(MachineInstr *MI, MachineBasicBlock *BB) const{
2743 const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
2744 MachineRegisterInfo &RegInfo = BB->getParent()->getRegInfo();
2745 DebugLoc DL = MI->getDebugLoc();
2746 unsigned Fd = MI->getOperand(0).getReg();
2747 unsigned Ws = MI->getOperand(1).getReg();
2748 unsigned Lane = MI->getOperand(2).getImm();
2751 BuildMI(*BB, MI, DL, TII->get(Mips::COPY), Fd).addReg(Ws, 0, Mips::sub_lo);
2753 unsigned Wt = RegInfo.createVirtualRegister(&Mips::MSA128WRegClass);
2755 BuildMI(*BB, MI, DL, TII->get(Mips::SPLATI_W), Wt).addReg(Ws).addImm(1);
2756 BuildMI(*BB, MI, DL, TII->get(Mips::COPY), Fd).addReg(Wt, 0, Mips::sub_lo);
2759 MI->eraseFromParent(); // The pseudo instruction is gone now.
2763 // Emit the COPY_FD pseudo instruction.
2765 // copy_fd_pseudo $fd, $ws, n
2767 // splati.d $wt, $ws, $n
2768 // copy $fd, $wt:sub_64
2770 // When n is zero, the equivalent operation can be performed with (potentially)
2771 // zero instructions due to register overlaps. This optimization is always
2772 // valid because FR=1 mode which is the only supported mode in MSA.
2773 MachineBasicBlock * MipsSETargetLowering::
2774 emitCOPY_FD(MachineInstr *MI, MachineBasicBlock *BB) const{
2775 assert(Subtarget->isFP64bit());
2777 const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
2778 MachineRegisterInfo &RegInfo = BB->getParent()->getRegInfo();
2779 unsigned Fd = MI->getOperand(0).getReg();
2780 unsigned Ws = MI->getOperand(1).getReg();
2781 unsigned Lane = MI->getOperand(2).getImm() * 2;
2782 DebugLoc DL = MI->getDebugLoc();
2785 BuildMI(*BB, MI, DL, TII->get(Mips::COPY), Fd).addReg(Ws, 0, Mips::sub_64);
2787 unsigned Wt = RegInfo.createVirtualRegister(&Mips::MSA128DRegClass);
2789 BuildMI(*BB, MI, DL, TII->get(Mips::SPLATI_D), Wt).addReg(Ws).addImm(1);
2790 BuildMI(*BB, MI, DL, TII->get(Mips::COPY), Fd).addReg(Wt, 0, Mips::sub_64);
2793 MI->eraseFromParent(); // The pseudo instruction is gone now.
2797 // Emit the INSERT_FW pseudo instruction.
2799 // insert_fw_pseudo $wd, $wd_in, $n, $fs
2801 // subreg_to_reg $wt:sub_lo, $fs
2802 // insve_w $wd[$n], $wd_in, $wt[0]
2804 MipsSETargetLowering::emitINSERT_FW(MachineInstr *MI,
2805 MachineBasicBlock *BB) const {
2806 const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
2807 MachineRegisterInfo &RegInfo = BB->getParent()->getRegInfo();
2808 DebugLoc DL = MI->getDebugLoc();
2809 unsigned Wd = MI->getOperand(0).getReg();
2810 unsigned Wd_in = MI->getOperand(1).getReg();
2811 unsigned Lane = MI->getOperand(2).getImm();
2812 unsigned Fs = MI->getOperand(3).getReg();
2813 unsigned Wt = RegInfo.createVirtualRegister(&Mips::MSA128WRegClass);
2815 BuildMI(*BB, MI, DL, TII->get(Mips::SUBREG_TO_REG), Wt)
2818 .addImm(Mips::sub_lo);
2819 BuildMI(*BB, MI, DL, TII->get(Mips::INSVE_W), Wd)
2824 MI->eraseFromParent(); // The pseudo instruction is gone now.
2828 // Emit the INSERT_FD pseudo instruction.
2830 // insert_fd_pseudo $wd, $fs, n
2832 // subreg_to_reg $wt:sub_64, $fs
2833 // insve_d $wd[$n], $wd_in, $wt[0]
2835 MipsSETargetLowering::emitINSERT_FD(MachineInstr *MI,
2836 MachineBasicBlock *BB) const {
2837 assert(Subtarget->isFP64bit());
2839 const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
2840 MachineRegisterInfo &RegInfo = BB->getParent()->getRegInfo();
2841 DebugLoc DL = MI->getDebugLoc();
2842 unsigned Wd = MI->getOperand(0).getReg();
2843 unsigned Wd_in = MI->getOperand(1).getReg();
2844 unsigned Lane = MI->getOperand(2).getImm();
2845 unsigned Fs = MI->getOperand(3).getReg();
2846 unsigned Wt = RegInfo.createVirtualRegister(&Mips::MSA128DRegClass);
2848 BuildMI(*BB, MI, DL, TII->get(Mips::SUBREG_TO_REG), Wt)
2851 .addImm(Mips::sub_64);
2852 BuildMI(*BB, MI, DL, TII->get(Mips::INSVE_D), Wd)
2857 MI->eraseFromParent(); // The pseudo instruction is gone now.
2861 // Emit the FILL_FW pseudo instruction.
2863 // fill_fw_pseudo $wd, $fs
2865 // implicit_def $wt1
2866 // insert_subreg $wt2:subreg_lo, $wt1, $fs
2867 // splati.w $wd, $wt2[0]
2869 MipsSETargetLowering::emitFILL_FW(MachineInstr *MI,
2870 MachineBasicBlock *BB) const {
2871 const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
2872 MachineRegisterInfo &RegInfo = BB->getParent()->getRegInfo();
2873 DebugLoc DL = MI->getDebugLoc();
2874 unsigned Wd = MI->getOperand(0).getReg();
2875 unsigned Fs = MI->getOperand(1).getReg();
2876 unsigned Wt1 = RegInfo.createVirtualRegister(&Mips::MSA128WRegClass);
2877 unsigned Wt2 = RegInfo.createVirtualRegister(&Mips::MSA128WRegClass);
2879 BuildMI(*BB, MI, DL, TII->get(Mips::IMPLICIT_DEF), Wt1);
2880 BuildMI(*BB, MI, DL, TII->get(Mips::INSERT_SUBREG), Wt2)
2883 .addImm(Mips::sub_lo);
2884 BuildMI(*BB, MI, DL, TII->get(Mips::SPLATI_W), Wd).addReg(Wt2).addImm(0);
2886 MI->eraseFromParent(); // The pseudo instruction is gone now.
2890 // Emit the FILL_FD pseudo instruction.
2892 // fill_fd_pseudo $wd, $fs
2894 // implicit_def $wt1
2895 // insert_subreg $wt2:subreg_64, $wt1, $fs
2896 // splati.d $wd, $wt2[0]
2898 MipsSETargetLowering::emitFILL_FD(MachineInstr *MI,
2899 MachineBasicBlock *BB) const {
2900 assert(Subtarget->isFP64bit());
2902 const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
2903 MachineRegisterInfo &RegInfo = BB->getParent()->getRegInfo();
2904 DebugLoc DL = MI->getDebugLoc();
2905 unsigned Wd = MI->getOperand(0).getReg();
2906 unsigned Fs = MI->getOperand(1).getReg();
2907 unsigned Wt1 = RegInfo.createVirtualRegister(&Mips::MSA128DRegClass);
2908 unsigned Wt2 = RegInfo.createVirtualRegister(&Mips::MSA128DRegClass);
2910 BuildMI(*BB, MI, DL, TII->get(Mips::IMPLICIT_DEF), Wt1);
2911 BuildMI(*BB, MI, DL, TII->get(Mips::INSERT_SUBREG), Wt2)
2914 .addImm(Mips::sub_64);
2915 BuildMI(*BB, MI, DL, TII->get(Mips::SPLATI_D), Wd).addReg(Wt2).addImm(0);
2917 MI->eraseFromParent(); // The pseudo instruction is gone now.
2921 // Emit the FEXP2_W_1 pseudo instructions.
2923 // fexp2_w_1_pseudo $wd, $wt
2926 // fexp2.w $wd, $ws, $wt
2928 MipsSETargetLowering::emitFEXP2_W_1(MachineInstr *MI,
2929 MachineBasicBlock *BB) const {
2930 const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
2931 MachineRegisterInfo &RegInfo = BB->getParent()->getRegInfo();
2932 const TargetRegisterClass *RC = &Mips::MSA128WRegClass;
2933 unsigned Ws1 = RegInfo.createVirtualRegister(RC);
2934 unsigned Ws2 = RegInfo.createVirtualRegister(RC);
2935 DebugLoc DL = MI->getDebugLoc();
2937 // Splat 1.0 into a vector
2938 BuildMI(*BB, MI, DL, TII->get(Mips::LDI_W), Ws1).addImm(1);
2939 BuildMI(*BB, MI, DL, TII->get(Mips::FFINT_U_W), Ws2).addReg(Ws1);
2941 // Emit 1.0 * fexp2(Wt)
2942 BuildMI(*BB, MI, DL, TII->get(Mips::FEXP2_W), MI->getOperand(0).getReg())
2944 .addReg(MI->getOperand(1).getReg());
2946 MI->eraseFromParent(); // The pseudo instruction is gone now.
2950 // Emit the FEXP2_D_1 pseudo instructions.
2952 // fexp2_d_1_pseudo $wd, $wt
2955 // fexp2.d $wd, $ws, $wt
2957 MipsSETargetLowering::emitFEXP2_D_1(MachineInstr *MI,
2958 MachineBasicBlock *BB) const {
2959 const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
2960 MachineRegisterInfo &RegInfo = BB->getParent()->getRegInfo();
2961 const TargetRegisterClass *RC = &Mips::MSA128DRegClass;
2962 unsigned Ws1 = RegInfo.createVirtualRegister(RC);
2963 unsigned Ws2 = RegInfo.createVirtualRegister(RC);
2964 DebugLoc DL = MI->getDebugLoc();
2966 // Splat 1.0 into a vector
2967 BuildMI(*BB, MI, DL, TII->get(Mips::LDI_D), Ws1).addImm(1);
2968 BuildMI(*BB, MI, DL, TII->get(Mips::FFINT_U_D), Ws2).addReg(Ws1);
2970 // Emit 1.0 * fexp2(Wt)
2971 BuildMI(*BB, MI, DL, TII->get(Mips::FEXP2_D), MI->getOperand(0).getReg())
2973 .addReg(MI->getOperand(1).getReg());
2975 MI->eraseFromParent(); // The pseudo instruction is gone now.