1 //===-- SPUISelDAGToDAG.cpp - CellSPU pattern matching inst selector ------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines a pattern matching instruction selector for the Cell SPU,
11 // converting from a legalized dag to a SPU-target dag.
13 //===----------------------------------------------------------------------===//
16 #include "SPUTargetMachine.h"
17 #include "SPUISelLowering.h"
18 #include "SPUHazardRecognizers.h"
19 #include "SPUFrameInfo.h"
20 #include "SPURegisterNames.h"
21 #include "SPUTargetMachine.h"
22 #include "llvm/CodeGen/MachineConstantPool.h"
23 #include "llvm/CodeGen/MachineInstrBuilder.h"
24 #include "llvm/CodeGen/MachineFunction.h"
25 #include "llvm/CodeGen/SelectionDAG.h"
26 #include "llvm/CodeGen/SelectionDAGISel.h"
27 #include "llvm/CodeGen/PseudoSourceValue.h"
28 #include "llvm/Target/TargetOptions.h"
29 #include "llvm/ADT/Statistic.h"
30 #include "llvm/Constants.h"
31 #include "llvm/GlobalValue.h"
32 #include "llvm/Intrinsics.h"
33 #include "llvm/LLVMContext.h"
34 #include "llvm/Support/Debug.h"
35 #include "llvm/Support/ErrorHandling.h"
36 #include "llvm/Support/MathExtras.h"
37 #include "llvm/Support/Compiler.h"
38 #include "llvm/Support/raw_ostream.h"
43 //! ConstantSDNode predicate for i32 sign-extended, 10-bit immediates
45 isI64IntS10Immediate(ConstantSDNode *CN)
47 return isInt<10>(CN->getSExtValue());
50 //! ConstantSDNode predicate for i32 sign-extended, 10-bit immediates
52 isI32IntS10Immediate(ConstantSDNode *CN)
54 return isInt<10>(CN->getSExtValue());
57 //! ConstantSDNode predicate for i32 unsigned 10-bit immediate values
59 isI32IntU10Immediate(ConstantSDNode *CN)
61 return isUInt<10>(CN->getSExtValue());
64 //! ConstantSDNode predicate for i16 sign-extended, 10-bit immediate values
66 isI16IntS10Immediate(ConstantSDNode *CN)
68 return isInt<10>(CN->getSExtValue());
71 //! SDNode predicate for i16 sign-extended, 10-bit immediate values
73 isI16IntS10Immediate(SDNode *N)
75 ConstantSDNode *CN = dyn_cast<ConstantSDNode>(N);
76 return (CN != 0 && isI16IntS10Immediate(CN));
79 //! ConstantSDNode predicate for i16 unsigned 10-bit immediate values
81 isI16IntU10Immediate(ConstantSDNode *CN)
83 return isUInt<10>((short) CN->getZExtValue());
86 //! SDNode predicate for i16 sign-extended, 10-bit immediate values
88 isI16IntU10Immediate(SDNode *N)
90 return (N->getOpcode() == ISD::Constant
91 && isI16IntU10Immediate(cast<ConstantSDNode>(N)));
94 //! ConstantSDNode predicate for signed 16-bit values
96 \arg CN The constant SelectionDAG node holding the value
97 \arg Imm The returned 16-bit value, if returning true
99 This predicate tests the value in \a CN to see whether it can be
100 represented as a 16-bit, sign-extended quantity. Returns true if
104 isIntS16Immediate(ConstantSDNode *CN, short &Imm)
106 EVT vt = CN->getValueType(0);
107 Imm = (short) CN->getZExtValue();
108 if (vt.getSimpleVT() >= MVT::i1 && vt.getSimpleVT() <= MVT::i16) {
110 } else if (vt == MVT::i32) {
111 int32_t i_val = (int32_t) CN->getZExtValue();
112 short s_val = (short) i_val;
113 return i_val == s_val;
115 int64_t i_val = (int64_t) CN->getZExtValue();
116 short s_val = (short) i_val;
117 return i_val == s_val;
123 //! SDNode predicate for signed 16-bit values.
125 isIntS16Immediate(SDNode *N, short &Imm)
127 return (N->getOpcode() == ISD::Constant
128 && isIntS16Immediate(cast<ConstantSDNode>(N), Imm));
131 //! ConstantFPSDNode predicate for representing floats as 16-bit sign ext.
133 isFPS16Immediate(ConstantFPSDNode *FPN, short &Imm)
135 EVT vt = FPN->getValueType(0);
136 if (vt == MVT::f32) {
137 int val = FloatToBits(FPN->getValueAPF().convertToFloat());
138 int sval = (int) ((val << 16) >> 16);
147 isHighLow(const SDValue &Op)
149 return (Op.getOpcode() == SPUISD::IndirectAddr
150 && ((Op.getOperand(0).getOpcode() == SPUISD::Hi
151 && Op.getOperand(1).getOpcode() == SPUISD::Lo)
152 || (Op.getOperand(0).getOpcode() == SPUISD::Lo
153 && Op.getOperand(1).getOpcode() == SPUISD::Hi)));
156 //===------------------------------------------------------------------===//
157 //! EVT to "useful stuff" mapping structure:
159 struct valtype_map_s {
161 unsigned ldresult_ins; /// LDRESULT instruction (0 = undefined)
162 bool ldresult_imm; /// LDRESULT instruction requires immediate?
163 unsigned lrinst; /// LR instruction
166 const valtype_map_s valtype_map[] = {
167 { MVT::i8, SPU::ORBIr8, true, SPU::LRr8 },
168 { MVT::i16, SPU::ORHIr16, true, SPU::LRr16 },
169 { MVT::i32, SPU::ORIr32, true, SPU::LRr32 },
170 { MVT::i64, SPU::ORr64, false, SPU::LRr64 },
171 { MVT::f32, SPU::ORf32, false, SPU::LRf32 },
172 { MVT::f64, SPU::ORf64, false, SPU::LRf64 },
173 // vector types... (sigh!)
174 { MVT::v16i8, 0, false, SPU::LRv16i8 },
175 { MVT::v8i16, 0, false, SPU::LRv8i16 },
176 { MVT::v4i32, 0, false, SPU::LRv4i32 },
177 { MVT::v2i64, 0, false, SPU::LRv2i64 },
178 { MVT::v4f32, 0, false, SPU::LRv4f32 },
179 { MVT::v2f64, 0, false, SPU::LRv2f64 }
182 const size_t n_valtype_map = sizeof(valtype_map) / sizeof(valtype_map[0]);
184 const valtype_map_s *getValueTypeMapEntry(EVT VT)
186 const valtype_map_s *retval = 0;
187 for (size_t i = 0; i < n_valtype_map; ++i) {
188 if (valtype_map[i].VT == VT) {
189 retval = valtype_map + i;
197 report_fatal_error("SPUISelDAGToDAG.cpp: getValueTypeMapEntry returns"
198 "NULL for " + Twine(VT.getEVTString()));
205 //! Generate the carry-generate shuffle mask.
206 SDValue getCarryGenerateShufMask(SelectionDAG &DAG, DebugLoc dl) {
207 SmallVector<SDValue, 16 > ShufBytes;
209 // Create the shuffle mask for "rotating" the borrow up one register slot
210 // once the borrow is generated.
211 ShufBytes.push_back(DAG.getConstant(0x04050607, MVT::i32));
212 ShufBytes.push_back(DAG.getConstant(0x80808080, MVT::i32));
213 ShufBytes.push_back(DAG.getConstant(0x0c0d0e0f, MVT::i32));
214 ShufBytes.push_back(DAG.getConstant(0x80808080, MVT::i32));
216 return DAG.getNode(ISD::BUILD_VECTOR, dl, MVT::v4i32,
217 &ShufBytes[0], ShufBytes.size());
220 //! Generate the borrow-generate shuffle mask
221 SDValue getBorrowGenerateShufMask(SelectionDAG &DAG, DebugLoc dl) {
222 SmallVector<SDValue, 16 > ShufBytes;
224 // Create the shuffle mask for "rotating" the borrow up one register slot
225 // once the borrow is generated.
226 ShufBytes.push_back(DAG.getConstant(0x04050607, MVT::i32));
227 ShufBytes.push_back(DAG.getConstant(0xc0c0c0c0, MVT::i32));
228 ShufBytes.push_back(DAG.getConstant(0x0c0d0e0f, MVT::i32));
229 ShufBytes.push_back(DAG.getConstant(0xc0c0c0c0, MVT::i32));
231 return DAG.getNode(ISD::BUILD_VECTOR, dl, MVT::v4i32,
232 &ShufBytes[0], ShufBytes.size());
235 //===------------------------------------------------------------------===//
236 /// SPUDAGToDAGISel - Cell SPU-specific code to select SPU machine
237 /// instructions for SelectionDAG operations.
239 class SPUDAGToDAGISel :
240 public SelectionDAGISel
242 SPUTargetMachine &TM;
243 SPUTargetLowering &SPUtli;
244 unsigned GlobalBaseReg;
247 explicit SPUDAGToDAGISel(SPUTargetMachine &tm) :
248 SelectionDAGISel(tm),
250 SPUtli(*tm.getTargetLowering())
253 virtual bool runOnMachineFunction(MachineFunction &MF) {
254 // Make sure we re-emit a set of the global base reg if necessary
256 SelectionDAGISel::runOnMachineFunction(MF);
260 /// getI32Imm - Return a target constant with the specified value, of type
262 inline SDValue getI32Imm(uint32_t Imm) {
263 return CurDAG->getTargetConstant(Imm, MVT::i32);
266 /// getI64Imm - Return a target constant with the specified value, of type
268 inline SDValue getI64Imm(uint64_t Imm) {
269 return CurDAG->getTargetConstant(Imm, MVT::i64);
272 /// getSmallIPtrImm - Return a target constant of pointer type.
273 inline SDValue getSmallIPtrImm(unsigned Imm) {
274 return CurDAG->getTargetConstant(Imm, SPUtli.getPointerTy());
277 SDNode *emitBuildVector(SDNode *bvNode) {
278 EVT vecVT = bvNode->getValueType(0);
279 EVT eltVT = vecVT.getVectorElementType();
280 DebugLoc dl = bvNode->getDebugLoc();
282 // Check to see if this vector can be represented as a CellSPU immediate
283 // constant by invoking all of the instruction selection predicates:
284 if (((vecVT == MVT::v8i16) &&
285 (SPU::get_vec_i16imm(bvNode, *CurDAG, MVT::i16).getNode() != 0)) ||
286 ((vecVT == MVT::v4i32) &&
287 ((SPU::get_vec_i16imm(bvNode, *CurDAG, MVT::i32).getNode() != 0) ||
288 (SPU::get_ILHUvec_imm(bvNode, *CurDAG, MVT::i32).getNode() != 0) ||
289 (SPU::get_vec_u18imm(bvNode, *CurDAG, MVT::i32).getNode() != 0) ||
290 (SPU::get_v4i32_imm(bvNode, *CurDAG).getNode() != 0))) ||
291 ((vecVT == MVT::v2i64) &&
292 ((SPU::get_vec_i16imm(bvNode, *CurDAG, MVT::i64).getNode() != 0) ||
293 (SPU::get_ILHUvec_imm(bvNode, *CurDAG, MVT::i64).getNode() != 0) ||
294 (SPU::get_vec_u18imm(bvNode, *CurDAG, MVT::i64).getNode() != 0)))) {
295 HandleSDNode Dummy(SDValue(bvNode, 0));
296 if (SDNode *N = Select(bvNode))
298 return Dummy.getValue().getNode();
301 // No, need to emit a constant pool spill:
302 std::vector<Constant*> CV;
304 for (size_t i = 0; i < bvNode->getNumOperands(); ++i) {
305 ConstantSDNode *V = dyn_cast<ConstantSDNode > (bvNode->getOperand(i));
306 CV.push_back(const_cast<ConstantInt *>(V->getConstantIntValue()));
309 const Constant *CP = ConstantVector::get(CV);
310 SDValue CPIdx = CurDAG->getConstantPool(CP, SPUtli.getPointerTy());
311 unsigned Alignment = cast<ConstantPoolSDNode>(CPIdx)->getAlignment();
312 SDValue CGPoolOffset =
313 SPU::LowerConstantPool(CPIdx, *CurDAG,
314 SPUtli.getSPUTargetMachine());
316 HandleSDNode Dummy(CurDAG->getLoad(vecVT, dl,
317 CurDAG->getEntryNode(), CGPoolOffset,
318 PseudoSourceValue::getConstantPool(),0,
319 false, false, Alignment));
320 CurDAG->ReplaceAllUsesWith(SDValue(bvNode, 0), Dummy.getValue());
321 if (SDNode *N = SelectCode(Dummy.getValue().getNode()))
323 return Dummy.getValue().getNode();
326 /// Select - Convert the specified operand from a target-independent to a
327 /// target-specific node if it hasn't already been changed.
328 SDNode *Select(SDNode *N);
330 //! Emit the instruction sequence for i64 shl
331 SDNode *SelectSHLi64(SDNode *N, EVT OpVT);
333 //! Emit the instruction sequence for i64 srl
334 SDNode *SelectSRLi64(SDNode *N, EVT OpVT);
336 //! Emit the instruction sequence for i64 sra
337 SDNode *SelectSRAi64(SDNode *N, EVT OpVT);
339 //! Emit the necessary sequence for loading i64 constants:
340 SDNode *SelectI64Constant(SDNode *N, EVT OpVT, DebugLoc dl);
342 //! Alternate instruction emit sequence for loading i64 constants
343 SDNode *SelectI64Constant(uint64_t i64const, EVT OpVT, DebugLoc dl);
345 //! Returns true if the address N is an A-form (local store) address
346 bool SelectAFormAddr(SDNode *Op, SDValue N, SDValue &Base,
349 //! D-form address predicate
350 bool SelectDFormAddr(SDNode *Op, SDValue N, SDValue &Base,
353 /// Alternate D-form address using i7 offset predicate
354 bool SelectDForm2Addr(SDNode *Op, SDValue N, SDValue &Disp,
357 /// D-form address selection workhorse
358 bool DFormAddressPredicate(SDNode *Op, SDValue N, SDValue &Disp,
359 SDValue &Base, int minOffset, int maxOffset);
361 //! Address predicate if N can be expressed as an indexed [r+r] operation.
362 bool SelectXFormAddr(SDNode *Op, SDValue N, SDValue &Base,
365 /// SelectInlineAsmMemoryOperand - Implement addressing mode selection for
366 /// inline asm expressions.
367 virtual bool SelectInlineAsmMemoryOperand(const SDValue &Op,
369 std::vector<SDValue> &OutOps) {
371 switch (ConstraintCode) {
372 default: return true;
374 if (!SelectDFormAddr(Op.getNode(), Op, Op0, Op1)
375 && !SelectAFormAddr(Op.getNode(), Op, Op0, Op1))
376 SelectXFormAddr(Op.getNode(), Op, Op0, Op1);
378 case 'o': // offsetable
379 if (!SelectDFormAddr(Op.getNode(), Op, Op0, Op1)
380 && !SelectAFormAddr(Op.getNode(), Op, Op0, Op1)) {
382 Op1 = getSmallIPtrImm(0);
385 case 'v': // not offsetable
387 llvm_unreachable("InlineAsmMemoryOperand 'v' constraint not handled.");
389 SelectAddrIdxOnly(Op, Op, Op0, Op1);
394 OutOps.push_back(Op0);
395 OutOps.push_back(Op1);
399 virtual const char *getPassName() const {
400 return "Cell SPU DAG->DAG Pattern Instruction Selection";
403 /// CreateTargetHazardRecognizer - Return the hazard recognizer to use for
404 /// this target when scheduling the DAG.
405 virtual ScheduleHazardRecognizer *CreateTargetHazardRecognizer() {
406 const TargetInstrInfo *II = TM.getInstrInfo();
407 assert(II && "No InstrInfo?");
408 return new SPUHazardRecognizer(*II);
411 // Include the pieces autogenerated from the target description.
412 #include "SPUGenDAGISel.inc"
417 \arg Op The ISD instruction operand
418 \arg N The address to be tested
419 \arg Base The base address
420 \arg Index The base address index
423 SPUDAGToDAGISel::SelectAFormAddr(SDNode *Op, SDValue N, SDValue &Base,
425 // These match the addr256k operand type:
426 EVT OffsVT = MVT::i16;
427 SDValue Zero = CurDAG->getTargetConstant(0, OffsVT);
429 switch (N.getOpcode()) {
431 case ISD::ConstantPool:
432 case ISD::GlobalAddress:
433 report_fatal_error("SPU SelectAFormAddr: Constant/Pool/Global not lowered.");
436 case ISD::TargetConstant:
437 case ISD::TargetGlobalAddress:
438 case ISD::TargetJumpTable:
439 report_fatal_error("SPUSelectAFormAddr: Target Constant/Pool/Global "
440 "not wrapped as A-form address.");
443 case SPUISD::AFormAddr:
444 // Just load from memory if there's only a single use of the location,
445 // otherwise, this will get handled below with D-form offset addresses
447 SDValue Op0 = N.getOperand(0);
448 switch (Op0.getOpcode()) {
449 case ISD::TargetConstantPool:
450 case ISD::TargetJumpTable:
455 case ISD::TargetGlobalAddress: {
456 GlobalAddressSDNode *GSDN = cast<GlobalAddressSDNode>(Op0);
457 const GlobalValue *GV = GSDN->getGlobal();
458 if (GV->getAlignment() == 16) {
473 SPUDAGToDAGISel::SelectDForm2Addr(SDNode *Op, SDValue N, SDValue &Disp,
475 const int minDForm2Offset = -(1 << 7);
476 const int maxDForm2Offset = (1 << 7) - 1;
477 return DFormAddressPredicate(Op, N, Disp, Base, minDForm2Offset,
482 \arg Op The ISD instruction (ignored)
483 \arg N The address to be tested
484 \arg Base Base address register/pointer
485 \arg Index Base address index
487 Examine the input address by a base register plus a signed 10-bit
488 displacement, [r+I10] (D-form address).
490 \return true if \a N is a D-form address with \a Base and \a Index set
491 to non-empty SDValue instances.
494 SPUDAGToDAGISel::SelectDFormAddr(SDNode *Op, SDValue N, SDValue &Base,
496 return DFormAddressPredicate(Op, N, Base, Index,
497 SPUFrameInfo::minFrameOffset(),
498 SPUFrameInfo::maxFrameOffset());
502 SPUDAGToDAGISel::DFormAddressPredicate(SDNode *Op, SDValue N, SDValue &Base,
503 SDValue &Index, int minOffset,
505 unsigned Opc = N.getOpcode();
506 EVT PtrTy = SPUtli.getPointerTy();
508 if (Opc == ISD::FrameIndex) {
509 // Stack frame index must be less than 512 (divided by 16):
510 FrameIndexSDNode *FIN = dyn_cast<FrameIndexSDNode>(N);
511 int FI = int(FIN->getIndex());
512 DEBUG(errs() << "SelectDFormAddr: ISD::FrameIndex = "
514 if (SPUFrameInfo::FItoStackOffset(FI) < maxOffset) {
515 Base = CurDAG->getTargetConstant(0, PtrTy);
516 Index = CurDAG->getTargetFrameIndex(FI, PtrTy);
519 } else if (Opc == ISD::ADD) {
520 // Generated by getelementptr
521 const SDValue Op0 = N.getOperand(0);
522 const SDValue Op1 = N.getOperand(1);
524 if ((Op0.getOpcode() == SPUISD::Hi && Op1.getOpcode() == SPUISD::Lo)
525 || (Op1.getOpcode() == SPUISD::Hi && Op0.getOpcode() == SPUISD::Lo)) {
526 Base = CurDAG->getTargetConstant(0, PtrTy);
529 } else if (Op1.getOpcode() == ISD::Constant
530 || Op1.getOpcode() == ISD::TargetConstant) {
531 ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Op1);
532 int32_t offset = int32_t(CN->getSExtValue());
534 if (Op0.getOpcode() == ISD::FrameIndex) {
535 FrameIndexSDNode *FIN = dyn_cast<FrameIndexSDNode>(Op0);
536 int FI = int(FIN->getIndex());
537 DEBUG(errs() << "SelectDFormAddr: ISD::ADD offset = " << offset
538 << " frame index = " << FI << "\n");
540 if (SPUFrameInfo::FItoStackOffset(FI) < maxOffset) {
541 Base = CurDAG->getTargetConstant(offset, PtrTy);
542 Index = CurDAG->getTargetFrameIndex(FI, PtrTy);
545 } else if (offset > minOffset && offset < maxOffset) {
546 Base = CurDAG->getTargetConstant(offset, PtrTy);
550 } else if (Op0.getOpcode() == ISD::Constant
551 || Op0.getOpcode() == ISD::TargetConstant) {
552 ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Op0);
553 int32_t offset = int32_t(CN->getSExtValue());
555 if (Op1.getOpcode() == ISD::FrameIndex) {
556 FrameIndexSDNode *FIN = dyn_cast<FrameIndexSDNode>(Op1);
557 int FI = int(FIN->getIndex());
558 DEBUG(errs() << "SelectDFormAddr: ISD::ADD offset = " << offset
559 << " frame index = " << FI << "\n");
561 if (SPUFrameInfo::FItoStackOffset(FI) < maxOffset) {
562 Base = CurDAG->getTargetConstant(offset, PtrTy);
563 Index = CurDAG->getTargetFrameIndex(FI, PtrTy);
566 } else if (offset > minOffset && offset < maxOffset) {
567 Base = CurDAG->getTargetConstant(offset, PtrTy);
572 } else if (Opc == SPUISD::IndirectAddr) {
573 // Indirect with constant offset -> D-Form address
574 const SDValue Op0 = N.getOperand(0);
575 const SDValue Op1 = N.getOperand(1);
577 if (Op0.getOpcode() == SPUISD::Hi
578 && Op1.getOpcode() == SPUISD::Lo) {
579 // (SPUindirect (SPUhi <arg>, 0), (SPUlo <arg>, 0))
580 Base = CurDAG->getTargetConstant(0, PtrTy);
583 } else if (isa<ConstantSDNode>(Op0) || isa<ConstantSDNode>(Op1)) {
587 if (isa<ConstantSDNode>(Op1)) {
588 ConstantSDNode *CN = cast<ConstantSDNode>(Op1);
589 offset = int32_t(CN->getSExtValue());
591 } else if (isa<ConstantSDNode>(Op0)) {
592 ConstantSDNode *CN = cast<ConstantSDNode>(Op0);
593 offset = int32_t(CN->getSExtValue());
597 if (offset >= minOffset && offset <= maxOffset) {
598 Base = CurDAG->getTargetConstant(offset, PtrTy);
603 } else if (Opc == SPUISD::AFormAddr) {
604 Base = CurDAG->getTargetConstant(0, N.getValueType());
607 } else if (Opc == SPUISD::LDRESULT) {
608 Base = CurDAG->getTargetConstant(0, N.getValueType());
611 } else if (Opc == ISD::Register || Opc == ISD::CopyFromReg) {
612 unsigned OpOpc = Op->getOpcode();
614 if (OpOpc == ISD::STORE || OpOpc == ISD::LOAD) {
615 // Direct load/store without getelementptr
618 // Get the register from CopyFromReg
619 if (Opc == ISD::CopyFromReg)
620 Addr = N.getOperand(1);
622 Addr = N; // Register
624 Offs = ((OpOpc == ISD::STORE) ? Op->getOperand(3) : Op->getOperand(2));
626 if (Offs.getOpcode() == ISD::Constant || Offs.getOpcode() == ISD::UNDEF) {
627 if (Offs.getOpcode() == ISD::UNDEF)
628 Offs = CurDAG->getTargetConstant(0, Offs.getValueType());
635 /* If otherwise unadorned, default to D-form address with 0 offset: */
636 if (Opc == ISD::CopyFromReg) {
637 Index = N.getOperand(1);
642 Base = CurDAG->getTargetConstant(0, Index.getValueType());
651 \arg Op The ISD instruction operand
652 \arg N The address operand
653 \arg Base The base pointer operand
654 \arg Index The offset/index operand
656 If the address \a N can be expressed as an A-form or D-form address, returns
657 false. Otherwise, creates two operands, Base and Index that will become the
658 (r)(r) X-form address.
661 SPUDAGToDAGISel::SelectXFormAddr(SDNode *Op, SDValue N, SDValue &Base,
663 if (!SelectAFormAddr(Op, N, Base, Index)
664 && !SelectDFormAddr(Op, N, Base, Index)) {
665 // If the address is neither A-form or D-form, punt and use an X-form
667 Base = N.getOperand(1);
668 Index = N.getOperand(0);
675 //! Convert the operand from a target-independent to a target-specific node
679 SPUDAGToDAGISel::Select(SDNode *N) {
680 unsigned Opc = N->getOpcode();
683 EVT OpVT = N->getValueType(0);
685 DebugLoc dl = N->getDebugLoc();
687 if (N->isMachineOpcode())
688 return NULL; // Already selected.
690 if (Opc == ISD::FrameIndex) {
691 int FI = cast<FrameIndexSDNode>(N)->getIndex();
692 SDValue TFI = CurDAG->getTargetFrameIndex(FI, N->getValueType(0));
693 SDValue Imm0 = CurDAG->getTargetConstant(0, N->getValueType(0));
702 Ops[0] = CurDAG->getRegister(SPU::R1, N->getValueType(0));
703 Ops[1] = SDValue(CurDAG->getMachineNode(SPU::ILAr32, dl,
704 N->getValueType(0), TFI, Imm0),
708 } else if (Opc == ISD::Constant && OpVT == MVT::i64) {
709 // Catch the i64 constants that end up here. Note: The backend doesn't
710 // attempt to legalize the constant (it's useless because DAGCombiner
711 // will insert 64-bit constants and we can't stop it).
712 return SelectI64Constant(N, OpVT, N->getDebugLoc());
713 } else if ((Opc == ISD::ZERO_EXTEND || Opc == ISD::ANY_EXTEND)
714 && OpVT == MVT::i64) {
715 SDValue Op0 = N->getOperand(0);
716 EVT Op0VT = Op0.getValueType();
717 EVT Op0VecVT = EVT::getVectorVT(*CurDAG->getContext(),
718 Op0VT, (128 / Op0VT.getSizeInBits()));
719 EVT OpVecVT = EVT::getVectorVT(*CurDAG->getContext(),
720 OpVT, (128 / OpVT.getSizeInBits()));
723 switch (Op0VT.getSimpleVT().SimpleTy) {
725 report_fatal_error("CellSPU Select: Unhandled zero/any extend EVT");
728 shufMask = CurDAG->getNode(ISD::BUILD_VECTOR, dl, MVT::v4i32,
729 CurDAG->getConstant(0x80808080, MVT::i32),
730 CurDAG->getConstant(0x00010203, MVT::i32),
731 CurDAG->getConstant(0x80808080, MVT::i32),
732 CurDAG->getConstant(0x08090a0b, MVT::i32));
736 shufMask = CurDAG->getNode(ISD::BUILD_VECTOR, dl, MVT::v4i32,
737 CurDAG->getConstant(0x80808080, MVT::i32),
738 CurDAG->getConstant(0x80800203, MVT::i32),
739 CurDAG->getConstant(0x80808080, MVT::i32),
740 CurDAG->getConstant(0x80800a0b, MVT::i32));
744 shufMask = CurDAG->getNode(ISD::BUILD_VECTOR, dl, MVT::v4i32,
745 CurDAG->getConstant(0x80808080, MVT::i32),
746 CurDAG->getConstant(0x80808003, MVT::i32),
747 CurDAG->getConstant(0x80808080, MVT::i32),
748 CurDAG->getConstant(0x8080800b, MVT::i32));
752 SDNode *shufMaskLoad = emitBuildVector(shufMask.getNode());
754 HandleSDNode PromoteScalar(CurDAG->getNode(SPUISD::PREFSLOT2VEC, dl,
758 if (SDNode *N = SelectCode(PromoteScalar.getValue().getNode()))
759 PromScalar = SDValue(N, 0);
761 PromScalar = PromoteScalar.getValue();
763 SDValue zextShuffle =
764 CurDAG->getNode(SPUISD::SHUFB, dl, OpVecVT,
765 PromScalar, PromScalar,
766 SDValue(shufMaskLoad, 0));
768 HandleSDNode Dummy2(zextShuffle);
769 if (SDNode *N = SelectCode(Dummy2.getValue().getNode()))
770 zextShuffle = SDValue(N, 0);
772 zextShuffle = Dummy2.getValue();
773 HandleSDNode Dummy(CurDAG->getNode(SPUISD::VEC2PREFSLOT, dl, OpVT,
776 CurDAG->ReplaceAllUsesWith(N, Dummy.getValue().getNode());
777 SelectCode(Dummy.getValue().getNode());
778 return Dummy.getValue().getNode();
779 } else if (Opc == ISD::ADD && (OpVT == MVT::i64 || OpVT == MVT::v2i64)) {
781 emitBuildVector(getCarryGenerateShufMask(*CurDAG, dl).getNode());
783 HandleSDNode Dummy(CurDAG->getNode(SPUISD::ADD64_MARKER, dl, OpVT,
784 N->getOperand(0), N->getOperand(1),
785 SDValue(CGLoad, 0)));
787 CurDAG->ReplaceAllUsesWith(N, Dummy.getValue().getNode());
788 if (SDNode *N = SelectCode(Dummy.getValue().getNode()))
790 return Dummy.getValue().getNode();
791 } else if (Opc == ISD::SUB && (OpVT == MVT::i64 || OpVT == MVT::v2i64)) {
793 emitBuildVector(getBorrowGenerateShufMask(*CurDAG, dl).getNode());
795 HandleSDNode Dummy(CurDAG->getNode(SPUISD::SUB64_MARKER, dl, OpVT,
796 N->getOperand(0), N->getOperand(1),
797 SDValue(CGLoad, 0)));
799 CurDAG->ReplaceAllUsesWith(N, Dummy.getValue().getNode());
800 if (SDNode *N = SelectCode(Dummy.getValue().getNode()))
802 return Dummy.getValue().getNode();
803 } else if (Opc == ISD::MUL && (OpVT == MVT::i64 || OpVT == MVT::v2i64)) {
805 emitBuildVector(getCarryGenerateShufMask(*CurDAG, dl).getNode());
807 HandleSDNode Dummy(CurDAG->getNode(SPUISD::MUL64_MARKER, dl, OpVT,
808 N->getOperand(0), N->getOperand(1),
809 SDValue(CGLoad, 0)));
810 CurDAG->ReplaceAllUsesWith(N, Dummy.getValue().getNode());
811 if (SDNode *N = SelectCode(Dummy.getValue().getNode()))
813 return Dummy.getValue().getNode();
814 } else if (Opc == ISD::TRUNCATE) {
815 SDValue Op0 = N->getOperand(0);
816 if ((Op0.getOpcode() == ISD::SRA || Op0.getOpcode() == ISD::SRL)
818 && Op0.getValueType() == MVT::i64) {
819 // Catch (truncate:i32 ([sra|srl]:i64 arg, c), where c >= 32
821 // Take advantage of the fact that the upper 32 bits are in the
822 // i32 preferred slot and avoid shuffle gymnastics:
823 ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Op0.getOperand(1));
825 unsigned shift_amt = unsigned(CN->getZExtValue());
827 if (shift_amt >= 32) {
829 CurDAG->getMachineNode(SPU::ORr32_r64, dl, OpVT,
834 // Take care of the additional shift, if present:
835 SDValue shift = CurDAG->getTargetConstant(shift_amt, MVT::i32);
836 unsigned Opc = SPU::ROTMAIr32_i32;
838 if (Op0.getOpcode() == ISD::SRL)
841 hi32 = CurDAG->getMachineNode(Opc, dl, OpVT, SDValue(hi32, 0),
849 } else if (Opc == ISD::SHL) {
850 if (OpVT == MVT::i64)
851 return SelectSHLi64(N, OpVT);
852 } else if (Opc == ISD::SRL) {
853 if (OpVT == MVT::i64)
854 return SelectSRLi64(N, OpVT);
855 } else if (Opc == ISD::SRA) {
856 if (OpVT == MVT::i64)
857 return SelectSRAi64(N, OpVT);
858 } else if (Opc == ISD::FNEG
859 && (OpVT == MVT::f64 || OpVT == MVT::v2f64)) {
860 DebugLoc dl = N->getDebugLoc();
861 // Check if the pattern is a special form of DFNMS:
862 // (fneg (fsub (fmul R64FP:$rA, R64FP:$rB), R64FP:$rC))
863 SDValue Op0 = N->getOperand(0);
864 if (Op0.getOpcode() == ISD::FSUB) {
865 SDValue Op00 = Op0.getOperand(0);
866 if (Op00.getOpcode() == ISD::FMUL) {
867 unsigned Opc = SPU::DFNMSf64;
868 if (OpVT == MVT::v2f64)
869 Opc = SPU::DFNMSv2f64;
871 return CurDAG->getMachineNode(Opc, dl, OpVT,
878 SDValue negConst = CurDAG->getConstant(0x8000000000000000ULL, MVT::i64);
879 SDNode *signMask = 0;
880 unsigned Opc = SPU::XORfneg64;
882 if (OpVT == MVT::f64) {
883 signMask = SelectI64Constant(negConst.getNode(), MVT::i64, dl);
884 } else if (OpVT == MVT::v2f64) {
885 Opc = SPU::XORfnegvec;
886 signMask = emitBuildVector(CurDAG->getNode(ISD::BUILD_VECTOR, dl,
888 negConst, negConst).getNode());
891 return CurDAG->getMachineNode(Opc, dl, OpVT,
892 N->getOperand(0), SDValue(signMask, 0));
893 } else if (Opc == ISD::FABS) {
894 if (OpVT == MVT::f64) {
895 SDNode *signMask = SelectI64Constant(0x7fffffffffffffffULL, MVT::i64, dl);
896 return CurDAG->getMachineNode(SPU::ANDfabs64, dl, OpVT,
897 N->getOperand(0), SDValue(signMask, 0));
898 } else if (OpVT == MVT::v2f64) {
899 SDValue absConst = CurDAG->getConstant(0x7fffffffffffffffULL, MVT::i64);
900 SDValue absVec = CurDAG->getNode(ISD::BUILD_VECTOR, dl, MVT::v2i64,
902 SDNode *signMask = emitBuildVector(absVec.getNode());
903 return CurDAG->getMachineNode(SPU::ANDfabsvec, dl, OpVT,
904 N->getOperand(0), SDValue(signMask, 0));
906 } else if (Opc == SPUISD::LDRESULT) {
907 // Custom select instructions for LDRESULT
908 EVT VT = N->getValueType(0);
909 SDValue Arg = N->getOperand(0);
910 SDValue Chain = N->getOperand(1);
912 const valtype_map_s *vtm = getValueTypeMapEntry(VT);
914 if (vtm->ldresult_ins == 0) {
915 report_fatal_error("LDRESULT for unsupported type: " +
916 Twine(VT.getEVTString()));
919 Opc = vtm->ldresult_ins;
920 if (vtm->ldresult_imm) {
921 SDValue Zero = CurDAG->getTargetConstant(0, VT);
923 Result = CurDAG->getMachineNode(Opc, dl, VT, MVT::Other, Arg, Zero, Chain);
925 Result = CurDAG->getMachineNode(Opc, dl, VT, MVT::Other, Arg, Arg, Chain);
929 } else if (Opc == SPUISD::IndirectAddr) {
930 // Look at the operands: SelectCode() will catch the cases that aren't
931 // specifically handled here.
933 // SPUInstrInfo catches the following patterns:
934 // (SPUindirect (SPUhi ...), (SPUlo ...))
935 // (SPUindirect $sp, imm)
936 EVT VT = N->getValueType(0);
937 SDValue Op0 = N->getOperand(0);
938 SDValue Op1 = N->getOperand(1);
941 if ((Op0.getOpcode() != SPUISD::Hi && Op1.getOpcode() != SPUISD::Lo)
942 || (Op0.getOpcode() == ISD::Register
943 && ((RN = dyn_cast<RegisterSDNode>(Op0.getNode())) != 0
944 && RN->getReg() != SPU::R1))) {
946 if (Op1.getOpcode() == ISD::Constant) {
947 ConstantSDNode *CN = cast<ConstantSDNode>(Op1);
948 Op1 = CurDAG->getTargetConstant(CN->getSExtValue(), VT);
949 NewOpc = (isI32IntS10Immediate(CN) ? SPU::AIr32 : SPU::Ar32);
959 return CurDAG->SelectNodeTo(N, NewOpc, OpVT, Ops, n_ops);
961 return CurDAG->getMachineNode(NewOpc, dl, OpVT, Ops, n_ops);
963 return SelectCode(N);
967 * Emit the instruction sequence for i64 left shifts. The basic algorithm
968 * is to fill the bottom two word slots with zeros so that zeros are shifted
969 * in as the entire quadword is shifted left.
971 * \note This code could also be used to implement v2i64 shl.
973 * @param Op The shl operand
974 * @param OpVT Op's machine value value type (doesn't need to be passed, but
975 * makes life easier.)
976 * @return The SDNode with the entire instruction sequence
979 SPUDAGToDAGISel::SelectSHLi64(SDNode *N, EVT OpVT) {
980 SDValue Op0 = N->getOperand(0);
981 EVT VecVT = EVT::getVectorVT(*CurDAG->getContext(),
982 OpVT, (128 / OpVT.getSizeInBits()));
983 SDValue ShiftAmt = N->getOperand(1);
984 EVT ShiftAmtVT = ShiftAmt.getValueType();
985 SDNode *VecOp0, *SelMask, *ZeroFill, *Shift = 0;
987 DebugLoc dl = N->getDebugLoc();
989 VecOp0 = CurDAG->getMachineNode(SPU::ORv2i64_i64, dl, VecVT, Op0);
990 SelMaskVal = CurDAG->getTargetConstant(0xff00ULL, MVT::i16);
991 SelMask = CurDAG->getMachineNode(SPU::FSMBIv2i64, dl, VecVT, SelMaskVal);
992 ZeroFill = CurDAG->getMachineNode(SPU::ILv2i64, dl, VecVT,
993 CurDAG->getTargetConstant(0, OpVT));
994 VecOp0 = CurDAG->getMachineNode(SPU::SELBv2i64, dl, VecVT,
995 SDValue(ZeroFill, 0),
997 SDValue(SelMask, 0));
999 if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(ShiftAmt)) {
1000 unsigned bytes = unsigned(CN->getZExtValue()) >> 3;
1001 unsigned bits = unsigned(CN->getZExtValue()) & 7;
1005 CurDAG->getMachineNode(SPU::SHLQBYIv2i64, dl, VecVT,
1007 CurDAG->getTargetConstant(bytes, ShiftAmtVT));
1012 CurDAG->getMachineNode(SPU::SHLQBIIv2i64, dl, VecVT,
1013 SDValue((Shift != 0 ? Shift : VecOp0), 0),
1014 CurDAG->getTargetConstant(bits, ShiftAmtVT));
1018 CurDAG->getMachineNode(SPU::ROTMIr32, dl, ShiftAmtVT,
1020 CurDAG->getTargetConstant(3, ShiftAmtVT));
1022 CurDAG->getMachineNode(SPU::ANDIr32, dl, ShiftAmtVT,
1024 CurDAG->getTargetConstant(7, ShiftAmtVT));
1026 CurDAG->getMachineNode(SPU::SHLQBYv2i64, dl, VecVT,
1027 SDValue(VecOp0, 0), SDValue(Bytes, 0));
1029 CurDAG->getMachineNode(SPU::SHLQBIv2i64, dl, VecVT,
1030 SDValue(Shift, 0), SDValue(Bits, 0));
1033 return CurDAG->getMachineNode(SPU::ORi64_v2i64, dl, OpVT, SDValue(Shift, 0));
1037 * Emit the instruction sequence for i64 logical right shifts.
1039 * @param Op The shl operand
1040 * @param OpVT Op's machine value value type (doesn't need to be passed, but
1041 * makes life easier.)
1042 * @return The SDNode with the entire instruction sequence
1045 SPUDAGToDAGISel::SelectSRLi64(SDNode *N, EVT OpVT) {
1046 SDValue Op0 = N->getOperand(0);
1047 EVT VecVT = EVT::getVectorVT(*CurDAG->getContext(),
1048 OpVT, (128 / OpVT.getSizeInBits()));
1049 SDValue ShiftAmt = N->getOperand(1);
1050 EVT ShiftAmtVT = ShiftAmt.getValueType();
1051 SDNode *VecOp0, *Shift = 0;
1052 DebugLoc dl = N->getDebugLoc();
1054 VecOp0 = CurDAG->getMachineNode(SPU::ORv2i64_i64, dl, VecVT, Op0);
1056 if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(ShiftAmt)) {
1057 unsigned bytes = unsigned(CN->getZExtValue()) >> 3;
1058 unsigned bits = unsigned(CN->getZExtValue()) & 7;
1062 CurDAG->getMachineNode(SPU::ROTQMBYIv2i64, dl, VecVT,
1064 CurDAG->getTargetConstant(bytes, ShiftAmtVT));
1069 CurDAG->getMachineNode(SPU::ROTQMBIIv2i64, dl, VecVT,
1070 SDValue((Shift != 0 ? Shift : VecOp0), 0),
1071 CurDAG->getTargetConstant(bits, ShiftAmtVT));
1075 CurDAG->getMachineNode(SPU::ROTMIr32, dl, ShiftAmtVT,
1077 CurDAG->getTargetConstant(3, ShiftAmtVT));
1079 CurDAG->getMachineNode(SPU::ANDIr32, dl, ShiftAmtVT,
1081 CurDAG->getTargetConstant(7, ShiftAmtVT));
1083 // Ensure that the shift amounts are negated!
1084 Bytes = CurDAG->getMachineNode(SPU::SFIr32, dl, ShiftAmtVT,
1086 CurDAG->getTargetConstant(0, ShiftAmtVT));
1088 Bits = CurDAG->getMachineNode(SPU::SFIr32, dl, ShiftAmtVT,
1090 CurDAG->getTargetConstant(0, ShiftAmtVT));
1093 CurDAG->getMachineNode(SPU::ROTQMBYv2i64, dl, VecVT,
1094 SDValue(VecOp0, 0), SDValue(Bytes, 0));
1096 CurDAG->getMachineNode(SPU::ROTQMBIv2i64, dl, VecVT,
1097 SDValue(Shift, 0), SDValue(Bits, 0));
1100 return CurDAG->getMachineNode(SPU::ORi64_v2i64, dl, OpVT, SDValue(Shift, 0));
1104 * Emit the instruction sequence for i64 arithmetic right shifts.
1106 * @param Op The shl operand
1107 * @param OpVT Op's machine value value type (doesn't need to be passed, but
1108 * makes life easier.)
1109 * @return The SDNode with the entire instruction sequence
1112 SPUDAGToDAGISel::SelectSRAi64(SDNode *N, EVT OpVT) {
1113 // Promote Op0 to vector
1114 EVT VecVT = EVT::getVectorVT(*CurDAG->getContext(),
1115 OpVT, (128 / OpVT.getSizeInBits()));
1116 SDValue ShiftAmt = N->getOperand(1);
1117 EVT ShiftAmtVT = ShiftAmt.getValueType();
1118 DebugLoc dl = N->getDebugLoc();
1121 CurDAG->getMachineNode(SPU::ORv2i64_i64, dl, VecVT, N->getOperand(0));
1123 SDValue SignRotAmt = CurDAG->getTargetConstant(31, ShiftAmtVT);
1125 CurDAG->getMachineNode(SPU::ROTMAIv2i64_i32, dl, MVT::v2i64,
1126 SDValue(VecOp0, 0), SignRotAmt);
1127 SDNode *UpperHalfSign =
1128 CurDAG->getMachineNode(SPU::ORi32_v4i32, dl, MVT::i32, SDValue(SignRot, 0));
1130 SDNode *UpperHalfSignMask =
1131 CurDAG->getMachineNode(SPU::FSM64r32, dl, VecVT, SDValue(UpperHalfSign, 0));
1132 SDNode *UpperLowerMask =
1133 CurDAG->getMachineNode(SPU::FSMBIv2i64, dl, VecVT,
1134 CurDAG->getTargetConstant(0xff00ULL, MVT::i16));
1135 SDNode *UpperLowerSelect =
1136 CurDAG->getMachineNode(SPU::SELBv2i64, dl, VecVT,
1137 SDValue(UpperHalfSignMask, 0),
1139 SDValue(UpperLowerMask, 0));
1143 if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(ShiftAmt)) {
1144 unsigned bytes = unsigned(CN->getZExtValue()) >> 3;
1145 unsigned bits = unsigned(CN->getZExtValue()) & 7;
1150 CurDAG->getMachineNode(SPU::ROTQBYIv2i64, dl, VecVT,
1151 SDValue(UpperLowerSelect, 0),
1152 CurDAG->getTargetConstant(bytes, ShiftAmtVT));
1158 CurDAG->getMachineNode(SPU::ROTQBIIv2i64, dl, VecVT,
1159 SDValue((Shift != 0 ? Shift : UpperLowerSelect), 0),
1160 CurDAG->getTargetConstant(bits, ShiftAmtVT));
1164 CurDAG->getMachineNode(SPU::SFIr32, dl, ShiftAmtVT,
1165 ShiftAmt, CurDAG->getTargetConstant(0, ShiftAmtVT));
1168 CurDAG->getMachineNode(SPU::ROTQBYBIv2i64_r32, dl, VecVT,
1169 SDValue(UpperLowerSelect, 0), SDValue(NegShift, 0));
1171 CurDAG->getMachineNode(SPU::ROTQBIv2i64, dl, VecVT,
1172 SDValue(Shift, 0), SDValue(NegShift, 0));
1175 return CurDAG->getMachineNode(SPU::ORi64_v2i64, dl, OpVT, SDValue(Shift, 0));
1179 Do the necessary magic necessary to load a i64 constant
1181 SDNode *SPUDAGToDAGISel::SelectI64Constant(SDNode *N, EVT OpVT,
1183 ConstantSDNode *CN = cast<ConstantSDNode>(N);
1184 return SelectI64Constant(CN->getZExtValue(), OpVT, dl);
1187 SDNode *SPUDAGToDAGISel::SelectI64Constant(uint64_t Value64, EVT OpVT,
1189 EVT OpVecVT = EVT::getVectorVT(*CurDAG->getContext(), OpVT, 2);
1191 SPU::LowerV2I64Splat(OpVecVT, *CurDAG, Value64, dl);
1193 // Here's where it gets interesting, because we have to parse out the
1194 // subtree handed back in i64vec:
1196 if (i64vec.getOpcode() == ISD::BIT_CONVERT) {
1197 // The degenerate case where the upper and lower bits in the splat are
1199 SDValue Op0 = i64vec.getOperand(0);
1201 ReplaceUses(i64vec, Op0);
1202 return CurDAG->getMachineNode(SPU::ORi64_v2i64, dl, OpVT,
1203 SDValue(emitBuildVector(Op0.getNode()), 0));
1204 } else if (i64vec.getOpcode() == SPUISD::SHUFB) {
1205 SDValue lhs = i64vec.getOperand(0);
1206 SDValue rhs = i64vec.getOperand(1);
1207 SDValue shufmask = i64vec.getOperand(2);
1209 if (lhs.getOpcode() == ISD::BIT_CONVERT) {
1210 ReplaceUses(lhs, lhs.getOperand(0));
1211 lhs = lhs.getOperand(0);
1214 SDNode *lhsNode = (lhs.getNode()->isMachineOpcode()
1216 : emitBuildVector(lhs.getNode()));
1218 if (rhs.getOpcode() == ISD::BIT_CONVERT) {
1219 ReplaceUses(rhs, rhs.getOperand(0));
1220 rhs = rhs.getOperand(0);
1223 SDNode *rhsNode = (rhs.getNode()->isMachineOpcode()
1225 : emitBuildVector(rhs.getNode()));
1227 if (shufmask.getOpcode() == ISD::BIT_CONVERT) {
1228 ReplaceUses(shufmask, shufmask.getOperand(0));
1229 shufmask = shufmask.getOperand(0);
1232 SDNode *shufMaskNode = (shufmask.getNode()->isMachineOpcode()
1233 ? shufmask.getNode()
1234 : emitBuildVector(shufmask.getNode()));
1237 CurDAG->getNode(SPUISD::SHUFB, dl, OpVecVT,
1238 SDValue(lhsNode, 0), SDValue(rhsNode, 0),
1239 SDValue(shufMaskNode, 0));
1240 HandleSDNode Dummy(shufNode);
1241 SDNode *SN = SelectCode(Dummy.getValue().getNode());
1242 if (SN == 0) SN = Dummy.getValue().getNode();
1244 return CurDAG->getMachineNode(SPU::ORi64_v2i64, dl, OpVT, SDValue(SN, 0));
1245 } else if (i64vec.getOpcode() == ISD::BUILD_VECTOR) {
1246 return CurDAG->getMachineNode(SPU::ORi64_v2i64, dl, OpVT,
1247 SDValue(emitBuildVector(i64vec.getNode()), 0));
1249 report_fatal_error("SPUDAGToDAGISel::SelectI64Constant: Unhandled i64vec"
1254 /// createSPUISelDag - This pass converts a legalized DAG into a
1255 /// SPU-specific DAG, ready for instruction scheduling.
1257 FunctionPass *llvm::createSPUISelDag(SPUTargetMachine &TM) {
1258 return new SPUDAGToDAGISel(TM);