#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetInstrInfo.h"
using namespace llvm;
+#define DEBUG_TYPE "mips-isel"
+
static cl::opt<bool>
EnableMipsTailCalls("enable-mips-tail-calls", cl::Hidden,
cl::desc("MIPS: Enable tail calls."), cl::init(false));
-MipsSETargetLowering::MipsSETargetLowering(MipsTargetMachine &TM)
- : MipsTargetLowering(TM) {
- // Set up the register classes
-
- clearRegisterClasses();
+static cl::opt<bool> NoDPLoadStore("mno-ldc1-sdc1", cl::init(false),
+ cl::desc("Expand double precision loads and "
+ "stores to their single precision "
+ "counterparts"));
+MipsSETargetLowering::MipsSETargetLowering(MipsTargetMachine &TM,
+ const MipsSubtarget &STI)
+ : MipsTargetLowering(TM, STI) {
+ // Set up the register classes
addRegisterClass(MVT::i32, &Mips::GPR32RegClass);
- if (HasMips64)
+ if (Subtarget.isGP64bit())
addRegisterClass(MVT::i64, &Mips::GPR64RegClass);
- if (Subtarget->hasDSP()) {
+ if (Subtarget.hasDSP() || Subtarget.hasMSA()) {
+ // Expand all truncating stores and extending loads.
+ unsigned FirstVT = (unsigned)MVT::FIRST_VECTOR_VALUETYPE;
+ unsigned LastVT = (unsigned)MVT::LAST_VECTOR_VALUETYPE;
+
+ for (unsigned VT0 = FirstVT; VT0 <= LastVT; ++VT0) {
+ for (unsigned VT1 = FirstVT; VT1 <= LastVT; ++VT1)
+ setTruncStoreAction((MVT::SimpleValueType)VT0,
+ (MVT::SimpleValueType)VT1, Expand);
+
+ setLoadExtAction(ISD::SEXTLOAD, (MVT::SimpleValueType)VT0, Expand);
+ setLoadExtAction(ISD::ZEXTLOAD, (MVT::SimpleValueType)VT0, Expand);
+ setLoadExtAction(ISD::EXTLOAD, (MVT::SimpleValueType)VT0, Expand);
+ }
+ }
+
+ if (Subtarget.hasDSP()) {
MVT::SimpleValueType VecTys[2] = {MVT::v2i16, MVT::v4i8};
for (unsigned i = 0; i < array_lengthof(VecTys); ++i) {
setOperationAction(ISD::BITCAST, VecTys[i], Legal);
}
- // Expand all truncating stores and extending loads.
- unsigned FirstVT = (unsigned)MVT::FIRST_VECTOR_VALUETYPE;
- unsigned LastVT = (unsigned)MVT::LAST_VECTOR_VALUETYPE;
-
- for (unsigned VT0 = FirstVT; VT0 <= LastVT; ++VT0) {
- for (unsigned VT1 = FirstVT; VT1 <= LastVT; ++VT1)
- setTruncStoreAction((MVT::SimpleValueType)VT0,
- (MVT::SimpleValueType)VT1, Expand);
-
- setLoadExtAction(ISD::SEXTLOAD, (MVT::SimpleValueType)VT0, Expand);
- setLoadExtAction(ISD::ZEXTLOAD, (MVT::SimpleValueType)VT0, Expand);
- setLoadExtAction(ISD::EXTLOAD, (MVT::SimpleValueType)VT0, Expand);
- }
-
setTargetDAGCombine(ISD::SHL);
setTargetDAGCombine(ISD::SRA);
setTargetDAGCombine(ISD::SRL);
setTargetDAGCombine(ISD::VSELECT);
}
- if (Subtarget->hasDSPR2())
+ if (Subtarget.hasDSPR2())
setOperationAction(ISD::MUL, MVT::v2i16, Legal);
- if (Subtarget->hasMSA()) {
- addMSAType(MVT::v16i8, &Mips::MSA128BRegClass);
- addMSAType(MVT::v8i16, &Mips::MSA128HRegClass);
- addMSAType(MVT::v4i32, &Mips::MSA128WRegClass);
- addMSAType(MVT::v2i64, &Mips::MSA128DRegClass);
- addMSAType(MVT::v8f16, &Mips::MSA128HRegClass);
- addMSAType(MVT::v4f32, &Mips::MSA128WRegClass);
- addMSAType(MVT::v2f64, &Mips::MSA128DRegClass);
+ if (Subtarget.hasMSA()) {
+ addMSAIntType(MVT::v16i8, &Mips::MSA128BRegClass);
+ addMSAIntType(MVT::v8i16, &Mips::MSA128HRegClass);
+ addMSAIntType(MVT::v4i32, &Mips::MSA128WRegClass);
+ addMSAIntType(MVT::v2i64, &Mips::MSA128DRegClass);
+ addMSAFloatType(MVT::v8f16, &Mips::MSA128HRegClass);
+ addMSAFloatType(MVT::v4f32, &Mips::MSA128WRegClass);
+ addMSAFloatType(MVT::v2f64, &Mips::MSA128DRegClass);
+
+ setTargetDAGCombine(ISD::AND);
+ setTargetDAGCombine(ISD::OR);
+ setTargetDAGCombine(ISD::SRA);
+ setTargetDAGCombine(ISD::VSELECT);
+ setTargetDAGCombine(ISD::XOR);
}
- if (!Subtarget->mipsSEUsesSoftFloat()) {
+ if (!Subtarget.abiUsesSoftFloat()) {
addRegisterClass(MVT::f32, &Mips::FGR32RegClass);
// When dealing with single precision only, use libcalls
- if (!Subtarget->isSingleFloat()) {
- if (Subtarget->isFP64bit())
+ if (!Subtarget.isSingleFloat()) {
+ if (Subtarget.isFP64bit())
addRegisterClass(MVT::f64, &Mips::FGR64RegClass);
else
addRegisterClass(MVT::f64, &Mips::AFGR64RegClass);
setOperationAction(ISD::MULHS, MVT::i32, Custom);
setOperationAction(ISD::MULHU, MVT::i32, Custom);
- if (HasMips64) {
+ if (Subtarget.hasCnMips())
+ setOperationAction(ISD::MUL, MVT::i64, Legal);
+ else if (Subtarget.isGP64bit())
+ setOperationAction(ISD::MUL, MVT::i64, Custom);
+
+ if (Subtarget.isGP64bit()) {
setOperationAction(ISD::MULHS, MVT::i64, Custom);
setOperationAction(ISD::MULHU, MVT::i64, Custom);
- setOperationAction(ISD::MUL, MVT::i64, Custom);
}
setOperationAction(ISD::INTRINSIC_WO_CHAIN, MVT::i64, Custom);
setOperationAction(ISD::INTRINSIC_W_CHAIN, MVT::Other, Custom);
setOperationAction(ISD::INTRINSIC_VOID, MVT::Other, Custom);
+ if (NoDPLoadStore) {
+ setOperationAction(ISD::LOAD, MVT::f64, Custom);
+ setOperationAction(ISD::STORE, MVT::f64, Custom);
+ }
+
+ if (Subtarget.hasMips32r6()) {
+ // MIPS32r6 replaces the accumulator-based multiplies with a three register
+ // instruction
+ setOperationAction(ISD::SMUL_LOHI, MVT::i32, Expand);
+ setOperationAction(ISD::UMUL_LOHI, MVT::i32, Expand);
+ setOperationAction(ISD::MUL, MVT::i32, Legal);
+ setOperationAction(ISD::MULHS, MVT::i32, Legal);
+ setOperationAction(ISD::MULHU, MVT::i32, Legal);
+
+ // MIPS32r6 replaces the accumulator-based division/remainder with separate
+ // three register division and remainder instructions.
+ setOperationAction(ISD::SDIVREM, MVT::i32, Expand);
+ setOperationAction(ISD::UDIVREM, MVT::i32, Expand);
+ setOperationAction(ISD::SDIV, MVT::i32, Legal);
+ setOperationAction(ISD::UDIV, MVT::i32, Legal);
+ setOperationAction(ISD::SREM, MVT::i32, Legal);
+ setOperationAction(ISD::UREM, MVT::i32, Legal);
+
+ // MIPS32r6 replaces conditional moves with an equivalent that removes the
+ // need for three GPR read ports.
+ setOperationAction(ISD::SETCC, MVT::i32, Legal);
+ setOperationAction(ISD::SELECT, MVT::i32, Legal);
+ setOperationAction(ISD::SELECT_CC, MVT::i32, Expand);
+
+ setOperationAction(ISD::SETCC, MVT::f32, Legal);
+ setOperationAction(ISD::SELECT, MVT::f32, Legal);
+ setOperationAction(ISD::SELECT_CC, MVT::f32, Expand);
+
+ assert(Subtarget.isFP64bit() && "FR=1 is required for MIPS32r6");
+ setOperationAction(ISD::SETCC, MVT::f64, Legal);
+ setOperationAction(ISD::SELECT, MVT::f64, Legal);
+ setOperationAction(ISD::SELECT_CC, MVT::f64, Expand);
+
+ setOperationAction(ISD::BRCOND, MVT::Other, Legal);
+
+ // Floating point > and >= are supported via < and <=
+ setCondCodeAction(ISD::SETOGE, MVT::f32, Expand);
+ setCondCodeAction(ISD::SETOGT, MVT::f32, Expand);
+ setCondCodeAction(ISD::SETUGE, MVT::f32, Expand);
+ setCondCodeAction(ISD::SETUGT, MVT::f32, Expand);
+
+ setCondCodeAction(ISD::SETOGE, MVT::f64, Expand);
+ setCondCodeAction(ISD::SETOGT, MVT::f64, Expand);
+ setCondCodeAction(ISD::SETUGE, MVT::f64, Expand);
+ setCondCodeAction(ISD::SETUGT, MVT::f64, Expand);
+ }
+
+ if (Subtarget.hasMips64r6()) {
+ // MIPS64r6 replaces the accumulator-based multiplies with a three register
+ // instruction
+ setOperationAction(ISD::MUL, MVT::i64, Legal);
+ setOperationAction(ISD::MULHS, MVT::i64, Legal);
+ setOperationAction(ISD::MULHU, MVT::i64, Legal);
+
+ // MIPS32r6 replaces the accumulator-based division/remainder with separate
+ // three register division and remainder instructions.
+ setOperationAction(ISD::SDIVREM, MVT::i64, Expand);
+ setOperationAction(ISD::UDIVREM, MVT::i64, Expand);
+ setOperationAction(ISD::SDIV, MVT::i64, Legal);
+ setOperationAction(ISD::UDIV, MVT::i64, Legal);
+ setOperationAction(ISD::SREM, MVT::i64, Legal);
+ setOperationAction(ISD::UREM, MVT::i64, Legal);
+
+ // MIPS64r6 replaces conditional moves with an equivalent that removes the
+ // need for three GPR read ports.
+ setOperationAction(ISD::SETCC, MVT::i64, Legal);
+ setOperationAction(ISD::SELECT, MVT::i64, Legal);
+ setOperationAction(ISD::SELECT_CC, MVT::i64, Expand);
+ }
+
computeRegisterProperties();
}
const MipsTargetLowering *
-llvm::createMipsSETargetLowering(MipsTargetMachine &TM) {
- return new MipsSETargetLowering(TM);
+llvm::createMipsSETargetLowering(MipsTargetMachine &TM,
+ const MipsSubtarget &STI) {
+ return new MipsSETargetLowering(TM, STI);
+}
+
+const TargetRegisterClass *
+MipsSETargetLowering::getRepRegClassFor(MVT VT) const {
+ if (VT == MVT::Untyped)
+ return Subtarget.hasDSP() ? &Mips::ACC64DSPRegClass : &Mips::ACC64RegClass;
+
+ return TargetLowering::getRepRegClassFor(VT);
+}
+
+// Enable MSA support for the given integer type and Register class.
+void MipsSETargetLowering::
+addMSAIntType(MVT::SimpleValueType Ty, const TargetRegisterClass *RC) {
+ addRegisterClass(Ty, RC);
+
+ // Expand all builtin opcodes.
+ for (unsigned Opc = 0; Opc < ISD::BUILTIN_OP_END; ++Opc)
+ setOperationAction(Opc, Ty, Expand);
+
+ setOperationAction(ISD::BITCAST, Ty, Legal);
+ setOperationAction(ISD::LOAD, Ty, Legal);
+ setOperationAction(ISD::STORE, Ty, Legal);
+ setOperationAction(ISD::EXTRACT_VECTOR_ELT, Ty, Custom);
+ setOperationAction(ISD::INSERT_VECTOR_ELT, Ty, Legal);
+ setOperationAction(ISD::BUILD_VECTOR, Ty, Custom);
+
+ setOperationAction(ISD::ADD, Ty, Legal);
+ setOperationAction(ISD::AND, Ty, Legal);
+ setOperationAction(ISD::CTLZ, Ty, Legal);
+ setOperationAction(ISD::CTPOP, Ty, Legal);
+ setOperationAction(ISD::MUL, Ty, Legal);
+ setOperationAction(ISD::OR, Ty, Legal);
+ setOperationAction(ISD::SDIV, Ty, Legal);
+ setOperationAction(ISD::SREM, Ty, Legal);
+ setOperationAction(ISD::SHL, Ty, Legal);
+ setOperationAction(ISD::SRA, Ty, Legal);
+ setOperationAction(ISD::SRL, Ty, Legal);
+ setOperationAction(ISD::SUB, Ty, Legal);
+ setOperationAction(ISD::UDIV, Ty, Legal);
+ setOperationAction(ISD::UREM, Ty, Legal);
+ setOperationAction(ISD::VECTOR_SHUFFLE, Ty, Custom);
+ setOperationAction(ISD::VSELECT, Ty, Legal);
+ setOperationAction(ISD::XOR, Ty, Legal);
+
+ if (Ty == MVT::v4i32 || Ty == MVT::v2i64) {
+ setOperationAction(ISD::FP_TO_SINT, Ty, Legal);
+ setOperationAction(ISD::FP_TO_UINT, Ty, Legal);
+ setOperationAction(ISD::SINT_TO_FP, Ty, Legal);
+ setOperationAction(ISD::UINT_TO_FP, Ty, Legal);
+ }
+
+ setOperationAction(ISD::SETCC, Ty, Legal);
+ setCondCodeAction(ISD::SETNE, Ty, Expand);
+ setCondCodeAction(ISD::SETGE, Ty, Expand);
+ setCondCodeAction(ISD::SETGT, Ty, Expand);
+ setCondCodeAction(ISD::SETUGE, Ty, Expand);
+ setCondCodeAction(ISD::SETUGT, Ty, Expand);
}
+// Enable MSA support for the given floating-point type and Register class.
void MipsSETargetLowering::
-addMSAType(MVT::SimpleValueType Ty, const TargetRegisterClass *RC) {
+addMSAFloatType(MVT::SimpleValueType Ty, const TargetRegisterClass *RC) {
addRegisterClass(Ty, RC);
// Expand all builtin opcodes.
setOperationAction(ISD::LOAD, Ty, Legal);
setOperationAction(ISD::STORE, Ty, Legal);
setOperationAction(ISD::BITCAST, Ty, Legal);
+ setOperationAction(ISD::EXTRACT_VECTOR_ELT, Ty, Legal);
+ setOperationAction(ISD::INSERT_VECTOR_ELT, Ty, Legal);
+ setOperationAction(ISD::BUILD_VECTOR, Ty, Custom);
+
+ if (Ty != MVT::v8f16) {
+ setOperationAction(ISD::FABS, Ty, Legal);
+ setOperationAction(ISD::FADD, Ty, Legal);
+ setOperationAction(ISD::FDIV, Ty, Legal);
+ setOperationAction(ISD::FEXP2, Ty, Legal);
+ setOperationAction(ISD::FLOG2, Ty, Legal);
+ setOperationAction(ISD::FMA, Ty, Legal);
+ setOperationAction(ISD::FMUL, Ty, Legal);
+ setOperationAction(ISD::FRINT, Ty, Legal);
+ setOperationAction(ISD::FSQRT, Ty, Legal);
+ setOperationAction(ISD::FSUB, Ty, Legal);
+ setOperationAction(ISD::VSELECT, Ty, Legal);
+
+ setOperationAction(ISD::SETCC, Ty, Legal);
+ setCondCodeAction(ISD::SETOGE, Ty, Expand);
+ setCondCodeAction(ISD::SETOGT, Ty, Expand);
+ setCondCodeAction(ISD::SETUGE, Ty, Expand);
+ setCondCodeAction(ISD::SETUGT, Ty, Expand);
+ setCondCodeAction(ISD::SETGE, Ty, Expand);
+ setCondCodeAction(ISD::SETGT, Ty, Expand);
+ }
}
bool
-MipsSETargetLowering::allowsUnalignedMemoryAccesses(EVT VT, bool *Fast) const {
+MipsSETargetLowering::allowsUnalignedMemoryAccesses(EVT VT,
+ unsigned,
+ bool *Fast) const {
MVT::SimpleValueType SVT = VT.getSimpleVT().SimpleTy;
+ if (Subtarget.systemSupportsUnalignedAccess()) {
+ // MIPS32r6/MIPS64r6 is required to support unaligned access. It's
+ // implementation defined whether this is handled by hardware, software, or
+ // a hybrid of the two but it's expected that most implementations will
+ // handle the majority of cases in hardware.
+ if (Fast)
+ *Fast = true;
+ return true;
+ }
+
switch (SVT) {
case MVT::i64:
case MVT::i32:
SDValue MipsSETargetLowering::LowerOperation(SDValue Op,
SelectionDAG &DAG) const {
switch(Op.getOpcode()) {
+ case ISD::LOAD: return lowerLOAD(Op, DAG);
+ case ISD::STORE: return lowerSTORE(Op, DAG);
case ISD::SMUL_LOHI: return lowerMulDiv(Op, MipsISD::Mult, true, true, DAG);
case ISD::UMUL_LOHI: return lowerMulDiv(Op, MipsISD::Multu, true, true, DAG);
case ISD::MULHS: return lowerMulDiv(Op, MipsISD::Mult, false, true, DAG);
case ISD::INTRINSIC_WO_CHAIN: return lowerINTRINSIC_WO_CHAIN(Op, DAG);
case ISD::INTRINSIC_W_CHAIN: return lowerINTRINSIC_W_CHAIN(Op, DAG);
case ISD::INTRINSIC_VOID: return lowerINTRINSIC_VOID(Op, DAG);
+ case ISD::EXTRACT_VECTOR_ELT: return lowerEXTRACT_VECTOR_ELT(Op, DAG);
+ case ISD::BUILD_VECTOR: return lowerBUILD_VECTOR(Op, DAG);
+ case ISD::VECTOR_SHUFFLE: return lowerVECTOR_SHUFFLE(Op, DAG);
}
return MipsTargetLowering::LowerOperation(Op, DAG);
SDLoc DL(ADDENode);
// Initialize accumulator.
- SDValue ACCIn = CurDAG->getNode(MipsISD::InsertLOHI, DL, MVT::Untyped,
+ SDValue ACCIn = CurDAG->getNode(MipsISD::MTLOHI, DL, MVT::Untyped,
ADDCNode->getOperand(1),
ADDENode->getOperand(1));
// replace uses of adde and addc here
if (!SDValue(ADDCNode, 0).use_empty()) {
- SDValue LoIdx = CurDAG->getConstant(Mips::sub_lo, MVT::i32);
- SDValue LoOut = CurDAG->getNode(MipsISD::ExtractLOHI, DL, MVT::i32, MAdd,
- LoIdx);
+ SDValue LoOut = CurDAG->getNode(MipsISD::MFLO, DL, MVT::i32, MAdd);
CurDAG->ReplaceAllUsesOfValueWith(SDValue(ADDCNode, 0), LoOut);
}
if (!SDValue(ADDENode, 0).use_empty()) {
- SDValue HiIdx = CurDAG->getConstant(Mips::sub_hi, MVT::i32);
- SDValue HiOut = CurDAG->getNode(MipsISD::ExtractLOHI, DL, MVT::i32, MAdd,
- HiIdx);
+ SDValue HiOut = CurDAG->getNode(MipsISD::MFHI, DL, MVT::i32, MAdd);
CurDAG->ReplaceAllUsesOfValueWith(SDValue(ADDENode, 0), HiOut);
}
SDLoc DL(SUBENode);
// Initialize accumulator.
- SDValue ACCIn = CurDAG->getNode(MipsISD::InsertLOHI, DL, MVT::Untyped,
+ SDValue ACCIn = CurDAG->getNode(MipsISD::MTLOHI, DL, MVT::Untyped,
SUBCNode->getOperand(0),
SUBENode->getOperand(0));
// replace uses of sube and subc here
if (!SDValue(SUBCNode, 0).use_empty()) {
- SDValue LoIdx = CurDAG->getConstant(Mips::sub_lo, MVT::i32);
- SDValue LoOut = CurDAG->getNode(MipsISD::ExtractLOHI, DL, MVT::i32, MSub,
- LoIdx);
+ SDValue LoOut = CurDAG->getNode(MipsISD::MFLO, DL, MVT::i32, MSub);
CurDAG->ReplaceAllUsesOfValueWith(SDValue(SUBCNode, 0), LoOut);
}
if (!SDValue(SUBENode, 0).use_empty()) {
- SDValue HiIdx = CurDAG->getConstant(Mips::sub_hi, MVT::i32);
- SDValue HiOut = CurDAG->getNode(MipsISD::ExtractLOHI, DL, MVT::i32, MSub,
- HiIdx);
+ SDValue HiOut = CurDAG->getNode(MipsISD::MFHI, DL, MVT::i32, MSub);
CurDAG->ReplaceAllUsesOfValueWith(SDValue(SUBENode, 0), HiOut);
}
static SDValue performADDECombine(SDNode *N, SelectionDAG &DAG,
TargetLowering::DAGCombinerInfo &DCI,
- const MipsSubtarget *Subtarget) {
+ const MipsSubtarget &Subtarget) {
if (DCI.isBeforeLegalize())
return SDValue();
- if (Subtarget->hasMips32() && N->getValueType(0) == MVT::i32 &&
- selectMADD(N, &DAG))
+ if (Subtarget.hasMips32() && !Subtarget.hasMips32r6() &&
+ N->getValueType(0) == MVT::i32 && selectMADD(N, &DAG))
return SDValue(N, 0);
return SDValue();
}
+// Fold zero extensions into MipsISD::VEXTRACT_[SZ]EXT_ELT
+//
+// Performs the following transformations:
+// - Changes MipsISD::VEXTRACT_[SZ]EXT_ELT to zero extension if its
+// sign/zero-extension is completely overwritten by the new one performed by
+// the ISD::AND.
+// - Removes redundant zero extensions performed by an ISD::AND.
+static SDValue performANDCombine(SDNode *N, SelectionDAG &DAG,
+ TargetLowering::DAGCombinerInfo &DCI,
+ const MipsSubtarget &Subtarget) {
+ if (!Subtarget.hasMSA())
+ return SDValue();
+
+ SDValue Op0 = N->getOperand(0);
+ SDValue Op1 = N->getOperand(1);
+ unsigned Op0Opcode = Op0->getOpcode();
+
+ // (and (MipsVExtract[SZ]Ext $a, $b, $c), imm:$d)
+ // where $d + 1 == 2^n and n == 32
+ // or $d + 1 == 2^n and n <= 32 and ZExt
+ // -> (MipsVExtractZExt $a, $b, $c)
+ if (Op0Opcode == MipsISD::VEXTRACT_SEXT_ELT ||
+ Op0Opcode == MipsISD::VEXTRACT_ZEXT_ELT) {
+ ConstantSDNode *Mask = dyn_cast<ConstantSDNode>(Op1);
+
+ if (!Mask)
+ return SDValue();
+
+ int32_t Log2IfPositive = (Mask->getAPIntValue() + 1).exactLogBase2();
+
+ if (Log2IfPositive <= 0)
+ return SDValue(); // Mask+1 is not a power of 2
+
+ SDValue Op0Op2 = Op0->getOperand(2);
+ EVT ExtendTy = cast<VTSDNode>(Op0Op2)->getVT();
+ unsigned ExtendTySize = ExtendTy.getSizeInBits();
+ unsigned Log2 = Log2IfPositive;
+
+ if ((Op0Opcode == MipsISD::VEXTRACT_ZEXT_ELT && Log2 >= ExtendTySize) ||
+ Log2 == ExtendTySize) {
+ SDValue Ops[] = { Op0->getOperand(0), Op0->getOperand(1), Op0Op2 };
+ DAG.MorphNodeTo(Op0.getNode(), MipsISD::VEXTRACT_ZEXT_ELT,
+ Op0->getVTList(),
+ makeArrayRef(Ops, Op0->getNumOperands()));
+ return Op0;
+ }
+ }
+
+ return SDValue();
+}
+
+// Determine if the specified node is a constant vector splat.
+//
+// Returns true and sets Imm if:
+// * N is a ISD::BUILD_VECTOR representing a constant splat
+//
+// This function is quite similar to MipsSEDAGToDAGISel::selectVSplat. The
+// differences are that it assumes the MSA has already been checked and the
+// arbitrary requirement for a maximum of 32-bit integers isn't applied (and
+// must not be in order for binsri.d to be selectable).
+static bool isVSplat(SDValue N, APInt &Imm, bool IsLittleEndian) {
+ BuildVectorSDNode *Node = dyn_cast<BuildVectorSDNode>(N.getNode());
+
+ if (!Node)
+ return false;
+
+ APInt SplatValue, SplatUndef;
+ unsigned SplatBitSize;
+ bool HasAnyUndefs;
+
+ if (!Node->isConstantSplat(SplatValue, SplatUndef, SplatBitSize, HasAnyUndefs,
+ 8, !IsLittleEndian))
+ return false;
+
+ Imm = SplatValue;
+
+ return true;
+}
+
+// Test whether the given node is an all-ones build_vector.
+static bool isVectorAllOnes(SDValue N) {
+ // Look through bitcasts. Endianness doesn't matter because we are looking
+ // for an all-ones value.
+ if (N->getOpcode() == ISD::BITCAST)
+ N = N->getOperand(0);
+
+ BuildVectorSDNode *BVN = dyn_cast<BuildVectorSDNode>(N);
+
+ if (!BVN)
+ return false;
+
+ APInt SplatValue, SplatUndef;
+ unsigned SplatBitSize;
+ bool HasAnyUndefs;
+
+ // Endianness doesn't matter in this context because we are looking for
+ // an all-ones value.
+ if (BVN->isConstantSplat(SplatValue, SplatUndef, SplatBitSize, HasAnyUndefs))
+ return SplatValue.isAllOnesValue();
+
+ return false;
+}
+
+// Test whether N is the bitwise inverse of OfNode.
+static bool isBitwiseInverse(SDValue N, SDValue OfNode) {
+ if (N->getOpcode() != ISD::XOR)
+ return false;
+
+ if (isVectorAllOnes(N->getOperand(0)))
+ return N->getOperand(1) == OfNode;
+
+ if (isVectorAllOnes(N->getOperand(1)))
+ return N->getOperand(0) == OfNode;
+
+ return false;
+}
+
+// Perform combines where ISD::OR is the root node.
+//
+// Performs the following transformations:
+// - (or (and $a, $mask), (and $b, $inv_mask)) => (vselect $mask, $a, $b)
+// where $inv_mask is the bitwise inverse of $mask and the 'or' has a 128-bit
+// vector type.
+static SDValue performORCombine(SDNode *N, SelectionDAG &DAG,
+ TargetLowering::DAGCombinerInfo &DCI,
+ const MipsSubtarget &Subtarget) {
+ if (!Subtarget.hasMSA())
+ return SDValue();
+
+ EVT Ty = N->getValueType(0);
+
+ if (!Ty.is128BitVector())
+ return SDValue();
+
+ SDValue Op0 = N->getOperand(0);
+ SDValue Op1 = N->getOperand(1);
+
+ if (Op0->getOpcode() == ISD::AND && Op1->getOpcode() == ISD::AND) {
+ SDValue Op0Op0 = Op0->getOperand(0);
+ SDValue Op0Op1 = Op0->getOperand(1);
+ SDValue Op1Op0 = Op1->getOperand(0);
+ SDValue Op1Op1 = Op1->getOperand(1);
+ bool IsLittleEndian = !Subtarget.isLittle();
+
+ SDValue IfSet, IfClr, Cond;
+ bool IsConstantMask = false;
+ APInt Mask, InvMask;
+
+ // If Op0Op0 is an appropriate mask, try to find it's inverse in either
+ // Op1Op0, or Op1Op1. Keep track of the Cond, IfSet, and IfClr nodes, while
+ // looking.
+ // IfClr will be set if we find a valid match.
+ if (isVSplat(Op0Op0, Mask, IsLittleEndian)) {
+ Cond = Op0Op0;
+ IfSet = Op0Op1;
+
+ if (isVSplat(Op1Op0, InvMask, IsLittleEndian) &&
+ Mask.getBitWidth() == InvMask.getBitWidth() && Mask == ~InvMask)
+ IfClr = Op1Op1;
+ else if (isVSplat(Op1Op1, InvMask, IsLittleEndian) &&
+ Mask.getBitWidth() == InvMask.getBitWidth() && Mask == ~InvMask)
+ IfClr = Op1Op0;
+
+ IsConstantMask = true;
+ }
+
+ // If IfClr is not yet set, and Op0Op1 is an appropriate mask, try the same
+ // thing again using this mask.
+ // IfClr will be set if we find a valid match.
+ if (!IfClr.getNode() && isVSplat(Op0Op1, Mask, IsLittleEndian)) {
+ Cond = Op0Op1;
+ IfSet = Op0Op0;
+
+ if (isVSplat(Op1Op0, InvMask, IsLittleEndian) &&
+ Mask.getBitWidth() == InvMask.getBitWidth() && Mask == ~InvMask)
+ IfClr = Op1Op1;
+ else if (isVSplat(Op1Op1, InvMask, IsLittleEndian) &&
+ Mask.getBitWidth() == InvMask.getBitWidth() && Mask == ~InvMask)
+ IfClr = Op1Op0;
+
+ IsConstantMask = true;
+ }
+
+ // If IfClr is not yet set, try looking for a non-constant match.
+ // IfClr will be set if we find a valid match amongst the eight
+ // possibilities.
+ if (!IfClr.getNode()) {
+ if (isBitwiseInverse(Op0Op0, Op1Op0)) {
+ Cond = Op1Op0;
+ IfSet = Op1Op1;
+ IfClr = Op0Op1;
+ } else if (isBitwiseInverse(Op0Op1, Op1Op0)) {
+ Cond = Op1Op0;
+ IfSet = Op1Op1;
+ IfClr = Op0Op0;
+ } else if (isBitwiseInverse(Op0Op0, Op1Op1)) {
+ Cond = Op1Op1;
+ IfSet = Op1Op0;
+ IfClr = Op0Op1;
+ } else if (isBitwiseInverse(Op0Op1, Op1Op1)) {
+ Cond = Op1Op1;
+ IfSet = Op1Op0;
+ IfClr = Op0Op0;
+ } else if (isBitwiseInverse(Op1Op0, Op0Op0)) {
+ Cond = Op0Op0;
+ IfSet = Op0Op1;
+ IfClr = Op1Op1;
+ } else if (isBitwiseInverse(Op1Op1, Op0Op0)) {
+ Cond = Op0Op0;
+ IfSet = Op0Op1;
+ IfClr = Op1Op0;
+ } else if (isBitwiseInverse(Op1Op0, Op0Op1)) {
+ Cond = Op0Op1;
+ IfSet = Op0Op0;
+ IfClr = Op1Op1;
+ } else if (isBitwiseInverse(Op1Op1, Op0Op1)) {
+ Cond = Op0Op1;
+ IfSet = Op0Op0;
+ IfClr = Op1Op0;
+ }
+ }
+
+ // At this point, IfClr will be set if we have a valid match.
+ if (!IfClr.getNode())
+ return SDValue();
+
+ assert(Cond.getNode() && IfSet.getNode());
+
+ // Fold degenerate cases.
+ if (IsConstantMask) {
+ if (Mask.isAllOnesValue())
+ return IfSet;
+ else if (Mask == 0)
+ return IfClr;
+ }
+
+ // Transform the DAG into an equivalent VSELECT.
+ return DAG.getNode(ISD::VSELECT, SDLoc(N), Ty, Cond, IfSet, IfClr);
+ }
+
+ return SDValue();
+}
+
static SDValue performSUBECombine(SDNode *N, SelectionDAG &DAG,
TargetLowering::DAGCombinerInfo &DCI,
- const MipsSubtarget *Subtarget) {
+ const MipsSubtarget &Subtarget) {
if (DCI.isBeforeLegalize())
return SDValue();
- if (Subtarget->hasMips32() && N->getValueType(0) == MVT::i32 &&
+ if (Subtarget.hasMips32() && N->getValueType(0) == MVT::i32 &&
selectMSUB(N, &DAG))
return SDValue(N, 0);
static SDValue performDSPShiftCombine(unsigned Opc, SDNode *N, EVT Ty,
SelectionDAG &DAG,
- const MipsSubtarget *Subtarget) {
+ const MipsSubtarget &Subtarget) {
// See if this is a vector splat immediate node.
APInt SplatValue, SplatUndef;
unsigned SplatBitSize;
unsigned EltSize = Ty.getVectorElementType().getSizeInBits();
BuildVectorSDNode *BV = dyn_cast<BuildVectorSDNode>(N->getOperand(1));
+ if (!Subtarget.hasDSP())
+ return SDValue();
+
if (!BV ||
!BV->isConstantSplat(SplatValue, SplatUndef, SplatBitSize, HasAnyUndefs,
- EltSize, !Subtarget->isLittle()) ||
+ EltSize, !Subtarget.isLittle()) ||
(SplatBitSize != EltSize) ||
(SplatValue.getZExtValue() >= EltSize))
return SDValue();
static SDValue performSHLCombine(SDNode *N, SelectionDAG &DAG,
TargetLowering::DAGCombinerInfo &DCI,
- const MipsSubtarget *Subtarget) {
+ const MipsSubtarget &Subtarget) {
EVT Ty = N->getValueType(0);
if ((Ty != MVT::v2i16) && (Ty != MVT::v4i8))
return performDSPShiftCombine(MipsISD::SHLL_DSP, N, Ty, DAG, Subtarget);
}
+// Fold sign-extensions into MipsISD::VEXTRACT_[SZ]EXT_ELT for MSA and fold
+// constant splats into MipsISD::SHRA_DSP for DSPr2.
+//
+// Performs the following transformations:
+// - Changes MipsISD::VEXTRACT_[SZ]EXT_ELT to sign extension if its
+// sign/zero-extension is completely overwritten by the new one performed by
+// the ISD::SRA and ISD::SHL nodes.
+// - Removes redundant sign extensions performed by an ISD::SRA and ISD::SHL
+// sequence.
+//
+// See performDSPShiftCombine for more information about the transformation
+// used for DSPr2.
static SDValue performSRACombine(SDNode *N, SelectionDAG &DAG,
TargetLowering::DAGCombinerInfo &DCI,
- const MipsSubtarget *Subtarget) {
+ const MipsSubtarget &Subtarget) {
EVT Ty = N->getValueType(0);
- if ((Ty != MVT::v2i16) && ((Ty != MVT::v4i8) || !Subtarget->hasDSPR2()))
+ if (Subtarget.hasMSA()) {
+ SDValue Op0 = N->getOperand(0);
+ SDValue Op1 = N->getOperand(1);
+
+ // (sra (shl (MipsVExtract[SZ]Ext $a, $b, $c), imm:$d), imm:$d)
+ // where $d + sizeof($c) == 32
+ // or $d + sizeof($c) <= 32 and SExt
+ // -> (MipsVExtractSExt $a, $b, $c)
+ if (Op0->getOpcode() == ISD::SHL && Op1 == Op0->getOperand(1)) {
+ SDValue Op0Op0 = Op0->getOperand(0);
+ ConstantSDNode *ShAmount = dyn_cast<ConstantSDNode>(Op1);
+
+ if (!ShAmount)
+ return SDValue();
+
+ if (Op0Op0->getOpcode() != MipsISD::VEXTRACT_SEXT_ELT &&
+ Op0Op0->getOpcode() != MipsISD::VEXTRACT_ZEXT_ELT)
+ return SDValue();
+
+ EVT ExtendTy = cast<VTSDNode>(Op0Op0->getOperand(2))->getVT();
+ unsigned TotalBits = ShAmount->getZExtValue() + ExtendTy.getSizeInBits();
+
+ if (TotalBits == 32 ||
+ (Op0Op0->getOpcode() == MipsISD::VEXTRACT_SEXT_ELT &&
+ TotalBits <= 32)) {
+ SDValue Ops[] = { Op0Op0->getOperand(0), Op0Op0->getOperand(1),
+ Op0Op0->getOperand(2) };
+ DAG.MorphNodeTo(Op0Op0.getNode(), MipsISD::VEXTRACT_SEXT_ELT,
+ Op0Op0->getVTList(),
+ makeArrayRef(Ops, Op0Op0->getNumOperands()));
+ return Op0Op0;
+ }
+ }
+ }
+
+ if ((Ty != MVT::v2i16) && ((Ty != MVT::v4i8) || !Subtarget.hasDSPR2()))
return SDValue();
return performDSPShiftCombine(MipsISD::SHRA_DSP, N, Ty, DAG, Subtarget);
static SDValue performSRLCombine(SDNode *N, SelectionDAG &DAG,
TargetLowering::DAGCombinerInfo &DCI,
- const MipsSubtarget *Subtarget) {
+ const MipsSubtarget &Subtarget) {
EVT Ty = N->getValueType(0);
- if (((Ty != MVT::v2i16) || !Subtarget->hasDSPR2()) && (Ty != MVT::v4i8))
+ if (((Ty != MVT::v2i16) || !Subtarget.hasDSPR2()) && (Ty != MVT::v4i8))
return SDValue();
return performDSPShiftCombine(MipsISD::SHRL_DSP, N, Ty, DAG, Subtarget);
static SDValue performVSELECTCombine(SDNode *N, SelectionDAG &DAG) {
EVT Ty = N->getValueType(0);
- if ((Ty != MVT::v2i16) && (Ty != MVT::v4i8))
- return SDValue();
+ if (Ty.is128BitVector() && Ty.isInteger()) {
+ // Try the following combines:
+ // (vselect (setcc $a, $b, SETLT), $b, $a)) -> (vsmax $a, $b)
+ // (vselect (setcc $a, $b, SETLE), $b, $a)) -> (vsmax $a, $b)
+ // (vselect (setcc $a, $b, SETLT), $a, $b)) -> (vsmin $a, $b)
+ // (vselect (setcc $a, $b, SETLE), $a, $b)) -> (vsmin $a, $b)
+ // (vselect (setcc $a, $b, SETULT), $b, $a)) -> (vumax $a, $b)
+ // (vselect (setcc $a, $b, SETULE), $b, $a)) -> (vumax $a, $b)
+ // (vselect (setcc $a, $b, SETULT), $a, $b)) -> (vumin $a, $b)
+ // (vselect (setcc $a, $b, SETULE), $a, $b)) -> (vumin $a, $b)
+ // SETGT/SETGE/SETUGT/SETUGE variants of these will show up initially but
+ // will be expanded to equivalent SETLT/SETLE/SETULT/SETULE versions by the
+ // legalizer.
+ SDValue Op0 = N->getOperand(0);
+
+ if (Op0->getOpcode() != ISD::SETCC)
+ return SDValue();
+
+ ISD::CondCode CondCode = cast<CondCodeSDNode>(Op0->getOperand(2))->get();
+ bool Signed;
+
+ if (CondCode == ISD::SETLT || CondCode == ISD::SETLE)
+ Signed = true;
+ else if (CondCode == ISD::SETULT || CondCode == ISD::SETULE)
+ Signed = false;
+ else
+ return SDValue();
+
+ SDValue Op1 = N->getOperand(1);
+ SDValue Op2 = N->getOperand(2);
+ SDValue Op0Op0 = Op0->getOperand(0);
+ SDValue Op0Op1 = Op0->getOperand(1);
+
+ if (Op1 == Op0Op0 && Op2 == Op0Op1)
+ return DAG.getNode(Signed ? MipsISD::VSMIN : MipsISD::VUMIN, SDLoc(N),
+ Ty, Op1, Op2);
+ else if (Op1 == Op0Op1 && Op2 == Op0Op0)
+ return DAG.getNode(Signed ? MipsISD::VSMAX : MipsISD::VUMAX, SDLoc(N),
+ Ty, Op1, Op2);
+ } else if ((Ty == MVT::v2i16) || (Ty == MVT::v4i8)) {
+ SDValue SetCC = N->getOperand(0);
+
+ if (SetCC.getOpcode() != MipsISD::SETCC_DSP)
+ return SDValue();
+
+ return DAG.getNode(MipsISD::SELECT_CC_DSP, SDLoc(N), Ty,
+ SetCC.getOperand(0), SetCC.getOperand(1),
+ N->getOperand(1), N->getOperand(2), SetCC.getOperand(2));
+ }
- SDValue SetCC = N->getOperand(0);
+ return SDValue();
+}
- if (SetCC.getOpcode() != MipsISD::SETCC_DSP)
- return SDValue();
+static SDValue performXORCombine(SDNode *N, SelectionDAG &DAG,
+ const MipsSubtarget &Subtarget) {
+ EVT Ty = N->getValueType(0);
+
+ if (Subtarget.hasMSA() && Ty.is128BitVector() && Ty.isInteger()) {
+ // Try the following combines:
+ // (xor (or $a, $b), (build_vector allones))
+ // (xor (or $a, $b), (bitcast (build_vector allones)))
+ SDValue Op0 = N->getOperand(0);
+ SDValue Op1 = N->getOperand(1);
+ SDValue NotOp;
+
+ if (ISD::isBuildVectorAllOnes(Op0.getNode()))
+ NotOp = Op1;
+ else if (ISD::isBuildVectorAllOnes(Op1.getNode()))
+ NotOp = Op0;
+ else
+ return SDValue();
+
+ if (NotOp->getOpcode() == ISD::OR)
+ return DAG.getNode(MipsISD::VNOR, SDLoc(N), Ty, NotOp->getOperand(0),
+ NotOp->getOperand(1));
+ }
- return DAG.getNode(MipsISD::SELECT_CC_DSP, SDLoc(N), Ty,
- SetCC.getOperand(0), SetCC.getOperand(1), N->getOperand(1),
- N->getOperand(2), SetCC.getOperand(2));
+ return SDValue();
}
SDValue
switch (N->getOpcode()) {
case ISD::ADDE:
return performADDECombine(N, DAG, DCI, Subtarget);
+ case ISD::AND:
+ Val = performANDCombine(N, DAG, DCI, Subtarget);
+ break;
+ case ISD::OR:
+ Val = performORCombine(N, DAG, DCI, Subtarget);
+ break;
case ISD::SUBE:
return performSUBECombine(N, DAG, DCI, Subtarget);
case ISD::MUL:
return performSRLCombine(N, DAG, DCI, Subtarget);
case ISD::VSELECT:
return performVSELECTCombine(N, DAG);
- case ISD::SETCC: {
+ case ISD::XOR:
+ Val = performXORCombine(N, DAG, Subtarget);
+ break;
+ case ISD::SETCC:
Val = performSETCCCombine(N, DAG);
break;
}
- }
- if (Val.getNode())
+ if (Val.getNode()) {
+ DEBUG(dbgs() << "\nMipsSE DAG Combine:\n";
+ N->printrWithDepth(dbgs(), &DAG);
+ dbgs() << "\n=> \n";
+ Val.getNode()->printrWithDepth(dbgs(), &DAG);
+ dbgs() << "\n");
return Val;
+ }
return MipsTargetLowering::PerformDAGCombine(N, DCI);
}
return emitMSACBranchPseudo(MI, BB, Mips::BZ_D);
case Mips::SZ_V_PSEUDO:
return emitMSACBranchPseudo(MI, BB, Mips::BZ_V);
+ case Mips::COPY_FW_PSEUDO:
+ return emitCOPY_FW(MI, BB);
+ case Mips::COPY_FD_PSEUDO:
+ return emitCOPY_FD(MI, BB);
+ case Mips::INSERT_FW_PSEUDO:
+ return emitINSERT_FW(MI, BB);
+ case Mips::INSERT_FD_PSEUDO:
+ return emitINSERT_FD(MI, BB);
+ case Mips::INSERT_B_VIDX_PSEUDO:
+ return emitINSERT_DF_VIDX(MI, BB, 1, false);
+ case Mips::INSERT_H_VIDX_PSEUDO:
+ return emitINSERT_DF_VIDX(MI, BB, 2, false);
+ case Mips::INSERT_W_VIDX_PSEUDO:
+ return emitINSERT_DF_VIDX(MI, BB, 4, false);
+ case Mips::INSERT_D_VIDX_PSEUDO:
+ return emitINSERT_DF_VIDX(MI, BB, 8, false);
+ case Mips::INSERT_FW_VIDX_PSEUDO:
+ return emitINSERT_DF_VIDX(MI, BB, 4, true);
+ case Mips::INSERT_FD_VIDX_PSEUDO:
+ return emitINSERT_DF_VIDX(MI, BB, 8, true);
+ case Mips::FILL_FW_PSEUDO:
+ return emitFILL_FW(MI, BB);
+ case Mips::FILL_FD_PSEUDO:
+ return emitFILL_FD(MI, BB);
+ case Mips::FEXP2_W_1_PSEUDO:
+ return emitFEXP2_W_1(MI, BB);
+ case Mips::FEXP2_D_1_PSEUDO:
+ return emitFEXP2_D_1(MI, BB);
}
}
std::deque< std::pair<unsigned, SDValue> > &RegsToPass,
bool IsPICCall, bool GlobalOrExternal, bool InternalLinkage,
CallLoweringInfo &CLI, SDValue Callee, SDValue Chain) const {
- // T9 should contain the address of the callee function if
- // -reloction-model=pic or it is an indirect call.
- if (IsPICCall || !GlobalOrExternal) {
- unsigned T9Reg = IsN64 ? Mips::T9_64 : Mips::T9;
- RegsToPass.push_front(std::make_pair(T9Reg, Callee));
- } else
- Ops.push_back(Callee);
-
+ Ops.push_back(Callee);
MipsTargetLowering::getOpndList(Ops, RegsToPass, IsPICCall, GlobalOrExternal,
InternalLinkage, CLI, Callee, Chain);
}
+SDValue MipsSETargetLowering::lowerLOAD(SDValue Op, SelectionDAG &DAG) const {
+ LoadSDNode &Nd = *cast<LoadSDNode>(Op);
+
+ if (Nd.getMemoryVT() != MVT::f64 || !NoDPLoadStore)
+ return MipsTargetLowering::lowerLOAD(Op, DAG);
+
+ // Replace a double precision load with two i32 loads and a buildpair64.
+ SDLoc DL(Op);
+ SDValue Ptr = Nd.getBasePtr(), Chain = Nd.getChain();
+ EVT PtrVT = Ptr.getValueType();
+
+ // i32 load from lower address.
+ SDValue Lo = DAG.getLoad(MVT::i32, DL, Chain, Ptr,
+ MachinePointerInfo(), Nd.isVolatile(),
+ Nd.isNonTemporal(), Nd.isInvariant(),
+ Nd.getAlignment());
+
+ // i32 load from higher address.
+ Ptr = DAG.getNode(ISD::ADD, DL, PtrVT, Ptr, DAG.getConstant(4, PtrVT));
+ SDValue Hi = DAG.getLoad(MVT::i32, DL, Lo.getValue(1), Ptr,
+ MachinePointerInfo(), Nd.isVolatile(),
+ Nd.isNonTemporal(), Nd.isInvariant(),
+ std::min(Nd.getAlignment(), 4U));
+
+ if (!Subtarget.isLittle())
+ std::swap(Lo, Hi);
+
+ SDValue BP = DAG.getNode(MipsISD::BuildPairF64, DL, MVT::f64, Lo, Hi);
+ SDValue Ops[2] = {BP, Hi.getValue(1)};
+ return DAG.getMergeValues(Ops, DL);
+}
+
+SDValue MipsSETargetLowering::lowerSTORE(SDValue Op, SelectionDAG &DAG) const {
+ StoreSDNode &Nd = *cast<StoreSDNode>(Op);
+
+ if (Nd.getMemoryVT() != MVT::f64 || !NoDPLoadStore)
+ return MipsTargetLowering::lowerSTORE(Op, DAG);
+
+ // Replace a double precision store with two extractelement64s and i32 stores.
+ SDLoc DL(Op);
+ SDValue Val = Nd.getValue(), Ptr = Nd.getBasePtr(), Chain = Nd.getChain();
+ EVT PtrVT = Ptr.getValueType();
+ SDValue Lo = DAG.getNode(MipsISD::ExtractElementF64, DL, MVT::i32,
+ Val, DAG.getConstant(0, MVT::i32));
+ SDValue Hi = DAG.getNode(MipsISD::ExtractElementF64, DL, MVT::i32,
+ Val, DAG.getConstant(1, MVT::i32));
+
+ if (!Subtarget.isLittle())
+ std::swap(Lo, Hi);
+
+ // i32 store to lower address.
+ Chain = DAG.getStore(Chain, DL, Lo, Ptr, MachinePointerInfo(),
+ Nd.isVolatile(), Nd.isNonTemporal(), Nd.getAlignment(),
+ Nd.getTBAAInfo());
+
+ // i32 store to higher address.
+ Ptr = DAG.getNode(ISD::ADD, DL, PtrVT, Ptr, DAG.getConstant(4, PtrVT));
+ return DAG.getStore(Chain, DL, Hi, Ptr, MachinePointerInfo(),
+ Nd.isVolatile(), Nd.isNonTemporal(),
+ std::min(Nd.getAlignment(), 4U), Nd.getTBAAInfo());
+}
+
SDValue MipsSETargetLowering::lowerMulDiv(SDValue Op, unsigned NewOpc,
bool HasLo, bool HasHi,
SelectionDAG &DAG) const {
+ // MIPS32r6/MIPS64r6 removed accumulator based multiplies.
+ assert(!Subtarget.hasMips32r6());
+
EVT Ty = Op.getOperand(0).getValueType();
SDLoc DL(Op);
SDValue Mult = DAG.getNode(NewOpc, DL, MVT::Untyped,
SDValue Lo, Hi;
if (HasLo)
- Lo = DAG.getNode(MipsISD::ExtractLOHI, DL, Ty, Mult,
- DAG.getConstant(Mips::sub_lo, MVT::i32));
+ Lo = DAG.getNode(MipsISD::MFLO, DL, Ty, Mult);
if (HasHi)
- Hi = DAG.getNode(MipsISD::ExtractLOHI, DL, Ty, Mult,
- DAG.getConstant(Mips::sub_hi, MVT::i32));
+ Hi = DAG.getNode(MipsISD::MFHI, DL, Ty, Mult);
if (!HasLo || !HasHi)
return HasLo ? Lo : Hi;
SDValue Vals[] = { Lo, Hi };
- return DAG.getMergeValues(Vals, 2, DL);
+ return DAG.getMergeValues(Vals, DL);
}
DAG.getConstant(0, MVT::i32));
SDValue InHi = DAG.getNode(ISD::EXTRACT_ELEMENT, DL, MVT::i32, In,
DAG.getConstant(1, MVT::i32));
- return DAG.getNode(MipsISD::InsertLOHI, DL, MVT::Untyped, InLo, InHi);
+ return DAG.getNode(MipsISD::MTLOHI, DL, MVT::Untyped, InLo, InHi);
}
static SDValue extractLOHI(SDValue Op, SDLoc DL, SelectionDAG &DAG) {
- SDValue Lo = DAG.getNode(MipsISD::ExtractLOHI, DL, MVT::i32, Op,
- DAG.getConstant(Mips::sub_lo, MVT::i32));
- SDValue Hi = DAG.getNode(MipsISD::ExtractLOHI, DL, MVT::i32, Op,
- DAG.getConstant(Mips::sub_hi, MVT::i32));
+ SDValue Lo = DAG.getNode(MipsISD::MFLO, DL, MVT::i32, Op);
+ SDValue Hi = DAG.getNode(MipsISD::MFHI, DL, MVT::i32, Op);
return DAG.getNode(ISD::BUILD_PAIR, DL, MVT::i64, Lo, Hi);
}
ResTys.push_back((*I == MVT::i64) ? MVT::Untyped : *I);
// Create node.
- SDValue Val = DAG.getNode(Opc, DL, ResTys, &Ops[0], Ops.size());
+ SDValue Val = DAG.getNode(Opc, DL, ResTys, Ops);
SDValue Out = (ResTys[0] == MVT::Untyped) ? extractLOHI(Val, DL, DAG) : Val;
if (!HasChainIn)
assert(Val->getValueType(1) == MVT::Other);
SDValue Vals[] = { Out, SDValue(Val.getNode(), 1) };
- return DAG.getMergeValues(Vals, 2, DL);
+ return DAG.getMergeValues(Vals, DL);
}
-static SDValue lowerMSABranchIntr(SDValue Op, SelectionDAG &DAG, unsigned Opc) {
+// Lower an MSA copy intrinsic into the specified SelectionDAG node
+static SDValue lowerMSACopyIntr(SDValue Op, SelectionDAG &DAG, unsigned Opc) {
SDLoc DL(Op);
- SDValue Value = Op->getOperand(1);
+ SDValue Vec = Op->getOperand(1);
+ SDValue Idx = Op->getOperand(2);
EVT ResTy = Op->getValueType(0);
+ EVT EltTy = Vec->getValueType(0).getVectorElementType();
- SDValue Result = DAG.getNode(Opc, DL, ResTy, Value);
+ SDValue Result = DAG.getNode(Opc, DL, ResTy, Vec, Idx,
+ DAG.getValueType(EltTy));
return Result;
}
+static SDValue lowerMSASplatZExt(SDValue Op, unsigned OpNr, SelectionDAG &DAG) {
+ EVT ResVecTy = Op->getValueType(0);
+ EVT ViaVecTy = ResVecTy;
+ SDLoc DL(Op);
+
+ // When ResVecTy == MVT::v2i64, LaneA is the upper 32 bits of the lane and
+ // LaneB is the lower 32-bits. Otherwise LaneA and LaneB are alternating
+ // lanes.
+ SDValue LaneA;
+ SDValue LaneB = Op->getOperand(2);
+
+ if (ResVecTy == MVT::v2i64) {
+ LaneA = DAG.getConstant(0, MVT::i32);
+ ViaVecTy = MVT::v4i32;
+ } else
+ LaneA = LaneB;
+
+ SDValue Ops[16] = { LaneA, LaneB, LaneA, LaneB, LaneA, LaneB, LaneA, LaneB,
+ LaneA, LaneB, LaneA, LaneB, LaneA, LaneB, LaneA, LaneB };
+
+ SDValue Result = DAG.getNode(ISD::BUILD_VECTOR, DL, ViaVecTy,
+ makeArrayRef(Ops, ViaVecTy.getVectorNumElements()));
+
+ if (ViaVecTy != ResVecTy)
+ Result = DAG.getNode(ISD::BITCAST, DL, ResVecTy, Result);
+
+ return Result;
+}
+
+static SDValue lowerMSASplatImm(SDValue Op, unsigned ImmOp, SelectionDAG &DAG) {
+ return DAG.getConstant(Op->getConstantOperandVal(ImmOp), Op->getValueType(0));
+}
+
+static SDValue getBuildVectorSplat(EVT VecTy, SDValue SplatValue,
+ bool BigEndian, SelectionDAG &DAG) {
+ EVT ViaVecTy = VecTy;
+ SDValue SplatValueA = SplatValue;
+ SDValue SplatValueB = SplatValue;
+ SDLoc DL(SplatValue);
+
+ if (VecTy == MVT::v2i64) {
+ // v2i64 BUILD_VECTOR must be performed via v4i32 so split into i32's.
+ ViaVecTy = MVT::v4i32;
+
+ SplatValueA = DAG.getNode(ISD::TRUNCATE, DL, MVT::i32, SplatValue);
+ SplatValueB = DAG.getNode(ISD::SRL, DL, MVT::i64, SplatValue,
+ DAG.getConstant(32, MVT::i32));
+ SplatValueB = DAG.getNode(ISD::TRUNCATE, DL, MVT::i32, SplatValueB);
+ }
+
+ // We currently hold the parts in little endian order. Swap them if
+ // necessary.
+ if (BigEndian)
+ std::swap(SplatValueA, SplatValueB);
+
+ SDValue Ops[16] = { SplatValueA, SplatValueB, SplatValueA, SplatValueB,
+ SplatValueA, SplatValueB, SplatValueA, SplatValueB,
+ SplatValueA, SplatValueB, SplatValueA, SplatValueB,
+ SplatValueA, SplatValueB, SplatValueA, SplatValueB };
+
+ SDValue Result = DAG.getNode(ISD::BUILD_VECTOR, DL, ViaVecTy,
+ makeArrayRef(Ops, ViaVecTy.getVectorNumElements()));
+
+ if (VecTy != ViaVecTy)
+ Result = DAG.getNode(ISD::BITCAST, DL, VecTy, Result);
+
+ return Result;
+}
+
+static SDValue lowerMSABinaryBitImmIntr(SDValue Op, SelectionDAG &DAG,
+ unsigned Opc, SDValue Imm,
+ bool BigEndian) {
+ EVT VecTy = Op->getValueType(0);
+ SDValue Exp2Imm;
+ SDLoc DL(Op);
+
+ // The DAG Combiner can't constant fold bitcasted vectors yet so we must do it
+ // here for now.
+ if (VecTy == MVT::v2i64) {
+ if (ConstantSDNode *CImm = dyn_cast<ConstantSDNode>(Imm)) {
+ APInt BitImm = APInt(64, 1) << CImm->getAPIntValue();
+
+ SDValue BitImmHiOp = DAG.getConstant(BitImm.lshr(32).trunc(32), MVT::i32);
+ SDValue BitImmLoOp = DAG.getConstant(BitImm.trunc(32), MVT::i32);
+
+ if (BigEndian)
+ std::swap(BitImmLoOp, BitImmHiOp);
+
+ Exp2Imm =
+ DAG.getNode(ISD::BITCAST, DL, MVT::v2i64,
+ DAG.getNode(ISD::BUILD_VECTOR, DL, MVT::v4i32, BitImmLoOp,
+ BitImmHiOp, BitImmLoOp, BitImmHiOp));
+ }
+ }
+
+ if (!Exp2Imm.getNode()) {
+ // We couldnt constant fold, do a vector shift instead
+
+ // Extend i32 to i64 if necessary. Sign or zero extend doesn't matter since
+ // only values 0-63 are valid.
+ if (VecTy == MVT::v2i64)
+ Imm = DAG.getNode(ISD::ZERO_EXTEND, DL, MVT::i64, Imm);
+
+ Exp2Imm = getBuildVectorSplat(VecTy, Imm, BigEndian, DAG);
+
+ Exp2Imm =
+ DAG.getNode(ISD::SHL, DL, VecTy, DAG.getConstant(1, VecTy), Exp2Imm);
+ }
+
+ return DAG.getNode(Opc, DL, VecTy, Op->getOperand(1), Exp2Imm);
+}
+
+static SDValue lowerMSABitClear(SDValue Op, SelectionDAG &DAG) {
+ EVT ResTy = Op->getValueType(0);
+ SDLoc DL(Op);
+ SDValue One = DAG.getConstant(1, ResTy);
+ SDValue Bit = DAG.getNode(ISD::SHL, DL, ResTy, One, Op->getOperand(2));
+
+ return DAG.getNode(ISD::AND, DL, ResTy, Op->getOperand(1),
+ DAG.getNOT(DL, Bit, ResTy));
+}
+
+static SDValue lowerMSABitClearImm(SDValue Op, SelectionDAG &DAG) {
+ SDLoc DL(Op);
+ EVT ResTy = Op->getValueType(0);
+ APInt BitImm = APInt(ResTy.getVectorElementType().getSizeInBits(), 1)
+ << cast<ConstantSDNode>(Op->getOperand(2))->getAPIntValue();
+ SDValue BitMask = DAG.getConstant(~BitImm, ResTy);
+
+ return DAG.getNode(ISD::AND, DL, ResTy, Op->getOperand(1), BitMask);
+}
+
SDValue MipsSETargetLowering::lowerINTRINSIC_WO_CHAIN(SDValue Op,
SelectionDAG &DAG) const {
+ SDLoc DL(Op);
+
switch (cast<ConstantSDNode>(Op->getOperand(0))->getZExtValue()) {
default:
return SDValue();
return lowerDSPIntr(Op, DAG, MipsISD::MSub);
case Intrinsic::mips_msubu:
return lowerDSPIntr(Op, DAG, MipsISD::MSubu);
+ case Intrinsic::mips_addv_b:
+ case Intrinsic::mips_addv_h:
+ case Intrinsic::mips_addv_w:
+ case Intrinsic::mips_addv_d:
+ return DAG.getNode(ISD::ADD, DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2));
+ case Intrinsic::mips_addvi_b:
+ case Intrinsic::mips_addvi_h:
+ case Intrinsic::mips_addvi_w:
+ case Intrinsic::mips_addvi_d:
+ return DAG.getNode(ISD::ADD, DL, Op->getValueType(0), Op->getOperand(1),
+ lowerMSASplatImm(Op, 2, DAG));
+ case Intrinsic::mips_and_v:
+ return DAG.getNode(ISD::AND, DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2));
+ case Intrinsic::mips_andi_b:
+ return DAG.getNode(ISD::AND, DL, Op->getValueType(0), Op->getOperand(1),
+ lowerMSASplatImm(Op, 2, DAG));
+ case Intrinsic::mips_bclr_b:
+ case Intrinsic::mips_bclr_h:
+ case Intrinsic::mips_bclr_w:
+ case Intrinsic::mips_bclr_d:
+ return lowerMSABitClear(Op, DAG);
+ case Intrinsic::mips_bclri_b:
+ case Intrinsic::mips_bclri_h:
+ case Intrinsic::mips_bclri_w:
+ case Intrinsic::mips_bclri_d:
+ return lowerMSABitClearImm(Op, DAG);
+ case Intrinsic::mips_binsli_b:
+ case Intrinsic::mips_binsli_h:
+ case Intrinsic::mips_binsli_w:
+ case Intrinsic::mips_binsli_d: {
+ // binsli_x(IfClear, IfSet, nbits) -> (vselect LBitsMask, IfSet, IfClear)
+ EVT VecTy = Op->getValueType(0);
+ EVT EltTy = VecTy.getVectorElementType();
+ APInt Mask = APInt::getHighBitsSet(EltTy.getSizeInBits(),
+ Op->getConstantOperandVal(3));
+ return DAG.getNode(ISD::VSELECT, DL, VecTy,
+ DAG.getConstant(Mask, VecTy, true), Op->getOperand(2),
+ Op->getOperand(1));
+ }
+ case Intrinsic::mips_binsri_b:
+ case Intrinsic::mips_binsri_h:
+ case Intrinsic::mips_binsri_w:
+ case Intrinsic::mips_binsri_d: {
+ // binsri_x(IfClear, IfSet, nbits) -> (vselect RBitsMask, IfSet, IfClear)
+ EVT VecTy = Op->getValueType(0);
+ EVT EltTy = VecTy.getVectorElementType();
+ APInt Mask = APInt::getLowBitsSet(EltTy.getSizeInBits(),
+ Op->getConstantOperandVal(3));
+ return DAG.getNode(ISD::VSELECT, DL, VecTy,
+ DAG.getConstant(Mask, VecTy, true), Op->getOperand(2),
+ Op->getOperand(1));
+ }
+ case Intrinsic::mips_bmnz_v:
+ return DAG.getNode(ISD::VSELECT, DL, Op->getValueType(0), Op->getOperand(3),
+ Op->getOperand(2), Op->getOperand(1));
+ case Intrinsic::mips_bmnzi_b:
+ return DAG.getNode(ISD::VSELECT, DL, Op->getValueType(0),
+ lowerMSASplatImm(Op, 3, DAG), Op->getOperand(2),
+ Op->getOperand(1));
+ case Intrinsic::mips_bmz_v:
+ return DAG.getNode(ISD::VSELECT, DL, Op->getValueType(0), Op->getOperand(3),
+ Op->getOperand(1), Op->getOperand(2));
+ case Intrinsic::mips_bmzi_b:
+ return DAG.getNode(ISD::VSELECT, DL, Op->getValueType(0),
+ lowerMSASplatImm(Op, 3, DAG), Op->getOperand(1),
+ Op->getOperand(2));
+ case Intrinsic::mips_bneg_b:
+ case Intrinsic::mips_bneg_h:
+ case Intrinsic::mips_bneg_w:
+ case Intrinsic::mips_bneg_d: {
+ EVT VecTy = Op->getValueType(0);
+ SDValue One = DAG.getConstant(1, VecTy);
+
+ return DAG.getNode(ISD::XOR, DL, VecTy, Op->getOperand(1),
+ DAG.getNode(ISD::SHL, DL, VecTy, One,
+ Op->getOperand(2)));
+ }
+ case Intrinsic::mips_bnegi_b:
+ case Intrinsic::mips_bnegi_h:
+ case Intrinsic::mips_bnegi_w:
+ case Intrinsic::mips_bnegi_d:
+ return lowerMSABinaryBitImmIntr(Op, DAG, ISD::XOR, Op->getOperand(2),
+ !Subtarget.isLittle());
case Intrinsic::mips_bnz_b:
case Intrinsic::mips_bnz_h:
case Intrinsic::mips_bnz_w:
case Intrinsic::mips_bnz_d:
- return lowerMSABranchIntr(Op, DAG, MipsISD::VALL_NONZERO);
+ return DAG.getNode(MipsISD::VALL_NONZERO, DL, Op->getValueType(0),
+ Op->getOperand(1));
case Intrinsic::mips_bnz_v:
- return lowerMSABranchIntr(Op, DAG, MipsISD::VANY_NONZERO);
+ return DAG.getNode(MipsISD::VANY_NONZERO, DL, Op->getValueType(0),
+ Op->getOperand(1));
+ case Intrinsic::mips_bsel_v:
+ // bsel_v(Mask, IfClear, IfSet) -> (vselect Mask, IfSet, IfClear)
+ return DAG.getNode(ISD::VSELECT, DL, Op->getValueType(0),
+ Op->getOperand(1), Op->getOperand(3),
+ Op->getOperand(2));
+ case Intrinsic::mips_bseli_b:
+ // bseli_v(Mask, IfClear, IfSet) -> (vselect Mask, IfSet, IfClear)
+ return DAG.getNode(ISD::VSELECT, DL, Op->getValueType(0),
+ Op->getOperand(1), lowerMSASplatImm(Op, 3, DAG),
+ Op->getOperand(2));
+ case Intrinsic::mips_bset_b:
+ case Intrinsic::mips_bset_h:
+ case Intrinsic::mips_bset_w:
+ case Intrinsic::mips_bset_d: {
+ EVT VecTy = Op->getValueType(0);
+ SDValue One = DAG.getConstant(1, VecTy);
+
+ return DAG.getNode(ISD::OR, DL, VecTy, Op->getOperand(1),
+ DAG.getNode(ISD::SHL, DL, VecTy, One,
+ Op->getOperand(2)));
+ }
+ case Intrinsic::mips_bseti_b:
+ case Intrinsic::mips_bseti_h:
+ case Intrinsic::mips_bseti_w:
+ case Intrinsic::mips_bseti_d:
+ return lowerMSABinaryBitImmIntr(Op, DAG, ISD::OR, Op->getOperand(2),
+ !Subtarget.isLittle());
case Intrinsic::mips_bz_b:
case Intrinsic::mips_bz_h:
case Intrinsic::mips_bz_w:
case Intrinsic::mips_bz_d:
- return lowerMSABranchIntr(Op, DAG, MipsISD::VALL_ZERO);
+ return DAG.getNode(MipsISD::VALL_ZERO, DL, Op->getValueType(0),
+ Op->getOperand(1));
case Intrinsic::mips_bz_v:
- return lowerMSABranchIntr(Op, DAG, MipsISD::VANY_ZERO);
+ return DAG.getNode(MipsISD::VANY_ZERO, DL, Op->getValueType(0),
+ Op->getOperand(1));
+ case Intrinsic::mips_ceq_b:
+ case Intrinsic::mips_ceq_h:
+ case Intrinsic::mips_ceq_w:
+ case Intrinsic::mips_ceq_d:
+ return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2), ISD::SETEQ);
+ case Intrinsic::mips_ceqi_b:
+ case Intrinsic::mips_ceqi_h:
+ case Intrinsic::mips_ceqi_w:
+ case Intrinsic::mips_ceqi_d:
+ return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
+ lowerMSASplatImm(Op, 2, DAG), ISD::SETEQ);
+ case Intrinsic::mips_cle_s_b:
+ case Intrinsic::mips_cle_s_h:
+ case Intrinsic::mips_cle_s_w:
+ case Intrinsic::mips_cle_s_d:
+ return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2), ISD::SETLE);
+ case Intrinsic::mips_clei_s_b:
+ case Intrinsic::mips_clei_s_h:
+ case Intrinsic::mips_clei_s_w:
+ case Intrinsic::mips_clei_s_d:
+ return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
+ lowerMSASplatImm(Op, 2, DAG), ISD::SETLE);
+ case Intrinsic::mips_cle_u_b:
+ case Intrinsic::mips_cle_u_h:
+ case Intrinsic::mips_cle_u_w:
+ case Intrinsic::mips_cle_u_d:
+ return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2), ISD::SETULE);
+ case Intrinsic::mips_clei_u_b:
+ case Intrinsic::mips_clei_u_h:
+ case Intrinsic::mips_clei_u_w:
+ case Intrinsic::mips_clei_u_d:
+ return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
+ lowerMSASplatImm(Op, 2, DAG), ISD::SETULE);
+ case Intrinsic::mips_clt_s_b:
+ case Intrinsic::mips_clt_s_h:
+ case Intrinsic::mips_clt_s_w:
+ case Intrinsic::mips_clt_s_d:
+ return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2), ISD::SETLT);
+ case Intrinsic::mips_clti_s_b:
+ case Intrinsic::mips_clti_s_h:
+ case Intrinsic::mips_clti_s_w:
+ case Intrinsic::mips_clti_s_d:
+ return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
+ lowerMSASplatImm(Op, 2, DAG), ISD::SETLT);
+ case Intrinsic::mips_clt_u_b:
+ case Intrinsic::mips_clt_u_h:
+ case Intrinsic::mips_clt_u_w:
+ case Intrinsic::mips_clt_u_d:
+ return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2), ISD::SETULT);
+ case Intrinsic::mips_clti_u_b:
+ case Intrinsic::mips_clti_u_h:
+ case Intrinsic::mips_clti_u_w:
+ case Intrinsic::mips_clti_u_d:
+ return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
+ lowerMSASplatImm(Op, 2, DAG), ISD::SETULT);
+ case Intrinsic::mips_copy_s_b:
+ case Intrinsic::mips_copy_s_h:
+ case Intrinsic::mips_copy_s_w:
+ return lowerMSACopyIntr(Op, DAG, MipsISD::VEXTRACT_SEXT_ELT);
+ case Intrinsic::mips_copy_s_d:
+ if (Subtarget.hasMips64())
+ // Lower directly into VEXTRACT_SEXT_ELT since i64 is legal on Mips64.
+ return lowerMSACopyIntr(Op, DAG, MipsISD::VEXTRACT_SEXT_ELT);
+ else {
+ // Lower into the generic EXTRACT_VECTOR_ELT node and let the type
+ // legalizer and EXTRACT_VECTOR_ELT lowering sort it out.
+ return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, SDLoc(Op),
+ Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2));
+ }
+ case Intrinsic::mips_copy_u_b:
+ case Intrinsic::mips_copy_u_h:
+ case Intrinsic::mips_copy_u_w:
+ return lowerMSACopyIntr(Op, DAG, MipsISD::VEXTRACT_ZEXT_ELT);
+ case Intrinsic::mips_copy_u_d:
+ if (Subtarget.hasMips64())
+ // Lower directly into VEXTRACT_ZEXT_ELT since i64 is legal on Mips64.
+ return lowerMSACopyIntr(Op, DAG, MipsISD::VEXTRACT_ZEXT_ELT);
+ else {
+ // Lower into the generic EXTRACT_VECTOR_ELT node and let the type
+ // legalizer and EXTRACT_VECTOR_ELT lowering sort it out.
+ // Note: When i64 is illegal, this results in copy_s.w instructions
+ // instead of copy_u.w instructions. This makes no difference to the
+ // behaviour since i64 is only illegal when the register file is 32-bit.
+ return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, SDLoc(Op),
+ Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2));
+ }
+ case Intrinsic::mips_div_s_b:
+ case Intrinsic::mips_div_s_h:
+ case Intrinsic::mips_div_s_w:
+ case Intrinsic::mips_div_s_d:
+ return DAG.getNode(ISD::SDIV, DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2));
+ case Intrinsic::mips_div_u_b:
+ case Intrinsic::mips_div_u_h:
+ case Intrinsic::mips_div_u_w:
+ case Intrinsic::mips_div_u_d:
+ return DAG.getNode(ISD::UDIV, DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2));
+ case Intrinsic::mips_fadd_w:
+ case Intrinsic::mips_fadd_d:
+ return DAG.getNode(ISD::FADD, DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2));
+ // Don't lower mips_fcaf_[wd] since LLVM folds SETFALSE condcodes away
+ case Intrinsic::mips_fceq_w:
+ case Intrinsic::mips_fceq_d:
+ return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2), ISD::SETOEQ);
+ case Intrinsic::mips_fcle_w:
+ case Intrinsic::mips_fcle_d:
+ return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2), ISD::SETOLE);
+ case Intrinsic::mips_fclt_w:
+ case Intrinsic::mips_fclt_d:
+ return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2), ISD::SETOLT);
+ case Intrinsic::mips_fcne_w:
+ case Intrinsic::mips_fcne_d:
+ return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2), ISD::SETONE);
+ case Intrinsic::mips_fcor_w:
+ case Intrinsic::mips_fcor_d:
+ return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2), ISD::SETO);
+ case Intrinsic::mips_fcueq_w:
+ case Intrinsic::mips_fcueq_d:
+ return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2), ISD::SETUEQ);
+ case Intrinsic::mips_fcule_w:
+ case Intrinsic::mips_fcule_d:
+ return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2), ISD::SETULE);
+ case Intrinsic::mips_fcult_w:
+ case Intrinsic::mips_fcult_d:
+ return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2), ISD::SETULT);
+ case Intrinsic::mips_fcun_w:
+ case Intrinsic::mips_fcun_d:
+ return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2), ISD::SETUO);
+ case Intrinsic::mips_fcune_w:
+ case Intrinsic::mips_fcune_d:
+ return DAG.getSetCC(DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2), ISD::SETUNE);
+ case Intrinsic::mips_fdiv_w:
+ case Intrinsic::mips_fdiv_d:
+ return DAG.getNode(ISD::FDIV, DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2));
+ case Intrinsic::mips_ffint_u_w:
+ case Intrinsic::mips_ffint_u_d:
+ return DAG.getNode(ISD::UINT_TO_FP, DL, Op->getValueType(0),
+ Op->getOperand(1));
+ case Intrinsic::mips_ffint_s_w:
+ case Intrinsic::mips_ffint_s_d:
+ return DAG.getNode(ISD::SINT_TO_FP, DL, Op->getValueType(0),
+ Op->getOperand(1));
+ case Intrinsic::mips_fill_b:
+ case Intrinsic::mips_fill_h:
+ case Intrinsic::mips_fill_w:
+ case Intrinsic::mips_fill_d: {
+ SmallVector<SDValue, 16> Ops;
+ EVT ResTy = Op->getValueType(0);
+
+ for (unsigned i = 0; i < ResTy.getVectorNumElements(); ++i)
+ Ops.push_back(Op->getOperand(1));
+
+ // If ResTy is v2i64 then the type legalizer will break this node down into
+ // an equivalent v4i32.
+ return DAG.getNode(ISD::BUILD_VECTOR, DL, ResTy, Ops);
+ }
+ case Intrinsic::mips_fexp2_w:
+ case Intrinsic::mips_fexp2_d: {
+ EVT ResTy = Op->getValueType(0);
+ return DAG.getNode(
+ ISD::FMUL, SDLoc(Op), ResTy, Op->getOperand(1),
+ DAG.getNode(ISD::FEXP2, SDLoc(Op), ResTy, Op->getOperand(2)));
+ }
+ case Intrinsic::mips_flog2_w:
+ case Intrinsic::mips_flog2_d:
+ return DAG.getNode(ISD::FLOG2, DL, Op->getValueType(0), Op->getOperand(1));
+ case Intrinsic::mips_fmadd_w:
+ case Intrinsic::mips_fmadd_d:
+ return DAG.getNode(ISD::FMA, SDLoc(Op), Op->getValueType(0),
+ Op->getOperand(1), Op->getOperand(2), Op->getOperand(3));
+ case Intrinsic::mips_fmul_w:
+ case Intrinsic::mips_fmul_d:
+ return DAG.getNode(ISD::FMUL, DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2));
+ case Intrinsic::mips_fmsub_w:
+ case Intrinsic::mips_fmsub_d: {
+ EVT ResTy = Op->getValueType(0);
+ return DAG.getNode(ISD::FSUB, SDLoc(Op), ResTy, Op->getOperand(1),
+ DAG.getNode(ISD::FMUL, SDLoc(Op), ResTy,
+ Op->getOperand(2), Op->getOperand(3)));
+ }
+ case Intrinsic::mips_frint_w:
+ case Intrinsic::mips_frint_d:
+ return DAG.getNode(ISD::FRINT, DL, Op->getValueType(0), Op->getOperand(1));
+ case Intrinsic::mips_fsqrt_w:
+ case Intrinsic::mips_fsqrt_d:
+ return DAG.getNode(ISD::FSQRT, DL, Op->getValueType(0), Op->getOperand(1));
+ case Intrinsic::mips_fsub_w:
+ case Intrinsic::mips_fsub_d:
+ return DAG.getNode(ISD::FSUB, DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2));
+ case Intrinsic::mips_ftrunc_u_w:
+ case Intrinsic::mips_ftrunc_u_d:
+ return DAG.getNode(ISD::FP_TO_UINT, DL, Op->getValueType(0),
+ Op->getOperand(1));
+ case Intrinsic::mips_ftrunc_s_w:
+ case Intrinsic::mips_ftrunc_s_d:
+ return DAG.getNode(ISD::FP_TO_SINT, DL, Op->getValueType(0),
+ Op->getOperand(1));
+ case Intrinsic::mips_ilvev_b:
+ case Intrinsic::mips_ilvev_h:
+ case Intrinsic::mips_ilvev_w:
+ case Intrinsic::mips_ilvev_d:
+ return DAG.getNode(MipsISD::ILVEV, DL, Op->getValueType(0),
+ Op->getOperand(1), Op->getOperand(2));
+ case Intrinsic::mips_ilvl_b:
+ case Intrinsic::mips_ilvl_h:
+ case Intrinsic::mips_ilvl_w:
+ case Intrinsic::mips_ilvl_d:
+ return DAG.getNode(MipsISD::ILVL, DL, Op->getValueType(0),
+ Op->getOperand(1), Op->getOperand(2));
+ case Intrinsic::mips_ilvod_b:
+ case Intrinsic::mips_ilvod_h:
+ case Intrinsic::mips_ilvod_w:
+ case Intrinsic::mips_ilvod_d:
+ return DAG.getNode(MipsISD::ILVOD, DL, Op->getValueType(0),
+ Op->getOperand(1), Op->getOperand(2));
+ case Intrinsic::mips_ilvr_b:
+ case Intrinsic::mips_ilvr_h:
+ case Intrinsic::mips_ilvr_w:
+ case Intrinsic::mips_ilvr_d:
+ return DAG.getNode(MipsISD::ILVR, DL, Op->getValueType(0),
+ Op->getOperand(1), Op->getOperand(2));
+ case Intrinsic::mips_insert_b:
+ case Intrinsic::mips_insert_h:
+ case Intrinsic::mips_insert_w:
+ case Intrinsic::mips_insert_d:
+ return DAG.getNode(ISD::INSERT_VECTOR_ELT, SDLoc(Op), Op->getValueType(0),
+ Op->getOperand(1), Op->getOperand(3), Op->getOperand(2));
+ case Intrinsic::mips_insve_b:
+ case Intrinsic::mips_insve_h:
+ case Intrinsic::mips_insve_w:
+ case Intrinsic::mips_insve_d:
+ return DAG.getNode(MipsISD::INSVE, DL, Op->getValueType(0),
+ Op->getOperand(1), Op->getOperand(2), Op->getOperand(3),
+ DAG.getConstant(0, MVT::i32));
+ case Intrinsic::mips_ldi_b:
+ case Intrinsic::mips_ldi_h:
+ case Intrinsic::mips_ldi_w:
+ case Intrinsic::mips_ldi_d:
+ return lowerMSASplatImm(Op, 1, DAG);
+ case Intrinsic::mips_lsa:
+ case Intrinsic::mips_dlsa: {
+ EVT ResTy = Op->getValueType(0);
+ return DAG.getNode(ISD::ADD, SDLoc(Op), ResTy, Op->getOperand(1),
+ DAG.getNode(ISD::SHL, SDLoc(Op), ResTy,
+ Op->getOperand(2), Op->getOperand(3)));
+ }
+ case Intrinsic::mips_maddv_b:
+ case Intrinsic::mips_maddv_h:
+ case Intrinsic::mips_maddv_w:
+ case Intrinsic::mips_maddv_d: {
+ EVT ResTy = Op->getValueType(0);
+ return DAG.getNode(ISD::ADD, SDLoc(Op), ResTy, Op->getOperand(1),
+ DAG.getNode(ISD::MUL, SDLoc(Op), ResTy,
+ Op->getOperand(2), Op->getOperand(3)));
+ }
+ case Intrinsic::mips_max_s_b:
+ case Intrinsic::mips_max_s_h:
+ case Intrinsic::mips_max_s_w:
+ case Intrinsic::mips_max_s_d:
+ return DAG.getNode(MipsISD::VSMAX, DL, Op->getValueType(0),
+ Op->getOperand(1), Op->getOperand(2));
+ case Intrinsic::mips_max_u_b:
+ case Intrinsic::mips_max_u_h:
+ case Intrinsic::mips_max_u_w:
+ case Intrinsic::mips_max_u_d:
+ return DAG.getNode(MipsISD::VUMAX, DL, Op->getValueType(0),
+ Op->getOperand(1), Op->getOperand(2));
+ case Intrinsic::mips_maxi_s_b:
+ case Intrinsic::mips_maxi_s_h:
+ case Intrinsic::mips_maxi_s_w:
+ case Intrinsic::mips_maxi_s_d:
+ return DAG.getNode(MipsISD::VSMAX, DL, Op->getValueType(0),
+ Op->getOperand(1), lowerMSASplatImm(Op, 2, DAG));
+ case Intrinsic::mips_maxi_u_b:
+ case Intrinsic::mips_maxi_u_h:
+ case Intrinsic::mips_maxi_u_w:
+ case Intrinsic::mips_maxi_u_d:
+ return DAG.getNode(MipsISD::VUMAX, DL, Op->getValueType(0),
+ Op->getOperand(1), lowerMSASplatImm(Op, 2, DAG));
+ case Intrinsic::mips_min_s_b:
+ case Intrinsic::mips_min_s_h:
+ case Intrinsic::mips_min_s_w:
+ case Intrinsic::mips_min_s_d:
+ return DAG.getNode(MipsISD::VSMIN, DL, Op->getValueType(0),
+ Op->getOperand(1), Op->getOperand(2));
+ case Intrinsic::mips_min_u_b:
+ case Intrinsic::mips_min_u_h:
+ case Intrinsic::mips_min_u_w:
+ case Intrinsic::mips_min_u_d:
+ return DAG.getNode(MipsISD::VUMIN, DL, Op->getValueType(0),
+ Op->getOperand(1), Op->getOperand(2));
+ case Intrinsic::mips_mini_s_b:
+ case Intrinsic::mips_mini_s_h:
+ case Intrinsic::mips_mini_s_w:
+ case Intrinsic::mips_mini_s_d:
+ return DAG.getNode(MipsISD::VSMIN, DL, Op->getValueType(0),
+ Op->getOperand(1), lowerMSASplatImm(Op, 2, DAG));
+ case Intrinsic::mips_mini_u_b:
+ case Intrinsic::mips_mini_u_h:
+ case Intrinsic::mips_mini_u_w:
+ case Intrinsic::mips_mini_u_d:
+ return DAG.getNode(MipsISD::VUMIN, DL, Op->getValueType(0),
+ Op->getOperand(1), lowerMSASplatImm(Op, 2, DAG));
+ case Intrinsic::mips_mod_s_b:
+ case Intrinsic::mips_mod_s_h:
+ case Intrinsic::mips_mod_s_w:
+ case Intrinsic::mips_mod_s_d:
+ return DAG.getNode(ISD::SREM, DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2));
+ case Intrinsic::mips_mod_u_b:
+ case Intrinsic::mips_mod_u_h:
+ case Intrinsic::mips_mod_u_w:
+ case Intrinsic::mips_mod_u_d:
+ return DAG.getNode(ISD::UREM, DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2));
+ case Intrinsic::mips_mulv_b:
+ case Intrinsic::mips_mulv_h:
+ case Intrinsic::mips_mulv_w:
+ case Intrinsic::mips_mulv_d:
+ return DAG.getNode(ISD::MUL, DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2));
+ case Intrinsic::mips_msubv_b:
+ case Intrinsic::mips_msubv_h:
+ case Intrinsic::mips_msubv_w:
+ case Intrinsic::mips_msubv_d: {
+ EVT ResTy = Op->getValueType(0);
+ return DAG.getNode(ISD::SUB, SDLoc(Op), ResTy, Op->getOperand(1),
+ DAG.getNode(ISD::MUL, SDLoc(Op), ResTy,
+ Op->getOperand(2), Op->getOperand(3)));
+ }
+ case Intrinsic::mips_nlzc_b:
+ case Intrinsic::mips_nlzc_h:
+ case Intrinsic::mips_nlzc_w:
+ case Intrinsic::mips_nlzc_d:
+ return DAG.getNode(ISD::CTLZ, DL, Op->getValueType(0), Op->getOperand(1));
+ case Intrinsic::mips_nor_v: {
+ SDValue Res = DAG.getNode(ISD::OR, DL, Op->getValueType(0),
+ Op->getOperand(1), Op->getOperand(2));
+ return DAG.getNOT(DL, Res, Res->getValueType(0));
+ }
+ case Intrinsic::mips_nori_b: {
+ SDValue Res = DAG.getNode(ISD::OR, DL, Op->getValueType(0),
+ Op->getOperand(1),
+ lowerMSASplatImm(Op, 2, DAG));
+ return DAG.getNOT(DL, Res, Res->getValueType(0));
+ }
+ case Intrinsic::mips_or_v:
+ return DAG.getNode(ISD::OR, DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2));
+ case Intrinsic::mips_ori_b:
+ return DAG.getNode(ISD::OR, DL, Op->getValueType(0),
+ Op->getOperand(1), lowerMSASplatImm(Op, 2, DAG));
+ case Intrinsic::mips_pckev_b:
+ case Intrinsic::mips_pckev_h:
+ case Intrinsic::mips_pckev_w:
+ case Intrinsic::mips_pckev_d:
+ return DAG.getNode(MipsISD::PCKEV, DL, Op->getValueType(0),
+ Op->getOperand(1), Op->getOperand(2));
+ case Intrinsic::mips_pckod_b:
+ case Intrinsic::mips_pckod_h:
+ case Intrinsic::mips_pckod_w:
+ case Intrinsic::mips_pckod_d:
+ return DAG.getNode(MipsISD::PCKOD, DL, Op->getValueType(0),
+ Op->getOperand(1), Op->getOperand(2));
+ case Intrinsic::mips_pcnt_b:
+ case Intrinsic::mips_pcnt_h:
+ case Intrinsic::mips_pcnt_w:
+ case Intrinsic::mips_pcnt_d:
+ return DAG.getNode(ISD::CTPOP, DL, Op->getValueType(0), Op->getOperand(1));
+ case Intrinsic::mips_shf_b:
+ case Intrinsic::mips_shf_h:
+ case Intrinsic::mips_shf_w:
+ return DAG.getNode(MipsISD::SHF, DL, Op->getValueType(0),
+ Op->getOperand(2), Op->getOperand(1));
+ case Intrinsic::mips_sll_b:
+ case Intrinsic::mips_sll_h:
+ case Intrinsic::mips_sll_w:
+ case Intrinsic::mips_sll_d:
+ return DAG.getNode(ISD::SHL, DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2));
+ case Intrinsic::mips_slli_b:
+ case Intrinsic::mips_slli_h:
+ case Intrinsic::mips_slli_w:
+ case Intrinsic::mips_slli_d:
+ return DAG.getNode(ISD::SHL, DL, Op->getValueType(0),
+ Op->getOperand(1), lowerMSASplatImm(Op, 2, DAG));
+ case Intrinsic::mips_splat_b:
+ case Intrinsic::mips_splat_h:
+ case Intrinsic::mips_splat_w:
+ case Intrinsic::mips_splat_d:
+ // We can't lower via VECTOR_SHUFFLE because it requires constant shuffle
+ // masks, nor can we lower via BUILD_VECTOR & EXTRACT_VECTOR_ELT because
+ // EXTRACT_VECTOR_ELT can't extract i64's on MIPS32.
+ // Instead we lower to MipsISD::VSHF and match from there.
+ return DAG.getNode(MipsISD::VSHF, DL, Op->getValueType(0),
+ lowerMSASplatZExt(Op, 2, DAG), Op->getOperand(1),
+ Op->getOperand(1));
+ case Intrinsic::mips_splati_b:
+ case Intrinsic::mips_splati_h:
+ case Intrinsic::mips_splati_w:
+ case Intrinsic::mips_splati_d:
+ return DAG.getNode(MipsISD::VSHF, DL, Op->getValueType(0),
+ lowerMSASplatImm(Op, 2, DAG), Op->getOperand(1),
+ Op->getOperand(1));
+ case Intrinsic::mips_sra_b:
+ case Intrinsic::mips_sra_h:
+ case Intrinsic::mips_sra_w:
+ case Intrinsic::mips_sra_d:
+ return DAG.getNode(ISD::SRA, DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2));
+ case Intrinsic::mips_srai_b:
+ case Intrinsic::mips_srai_h:
+ case Intrinsic::mips_srai_w:
+ case Intrinsic::mips_srai_d:
+ return DAG.getNode(ISD::SRA, DL, Op->getValueType(0),
+ Op->getOperand(1), lowerMSASplatImm(Op, 2, DAG));
+ case Intrinsic::mips_srl_b:
+ case Intrinsic::mips_srl_h:
+ case Intrinsic::mips_srl_w:
+ case Intrinsic::mips_srl_d:
+ return DAG.getNode(ISD::SRL, DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2));
+ case Intrinsic::mips_srli_b:
+ case Intrinsic::mips_srli_h:
+ case Intrinsic::mips_srli_w:
+ case Intrinsic::mips_srli_d:
+ return DAG.getNode(ISD::SRL, DL, Op->getValueType(0),
+ Op->getOperand(1), lowerMSASplatImm(Op, 2, DAG));
+ case Intrinsic::mips_subv_b:
+ case Intrinsic::mips_subv_h:
+ case Intrinsic::mips_subv_w:
+ case Intrinsic::mips_subv_d:
+ return DAG.getNode(ISD::SUB, DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2));
+ case Intrinsic::mips_subvi_b:
+ case Intrinsic::mips_subvi_h:
+ case Intrinsic::mips_subvi_w:
+ case Intrinsic::mips_subvi_d:
+ return DAG.getNode(ISD::SUB, DL, Op->getValueType(0),
+ Op->getOperand(1), lowerMSASplatImm(Op, 2, DAG));
+ case Intrinsic::mips_vshf_b:
+ case Intrinsic::mips_vshf_h:
+ case Intrinsic::mips_vshf_w:
+ case Intrinsic::mips_vshf_d:
+ return DAG.getNode(MipsISD::VSHF, DL, Op->getValueType(0),
+ Op->getOperand(1), Op->getOperand(2), Op->getOperand(3));
+ case Intrinsic::mips_xor_v:
+ return DAG.getNode(ISD::XOR, DL, Op->getValueType(0), Op->getOperand(1),
+ Op->getOperand(2));
+ case Intrinsic::mips_xori_b:
+ return DAG.getNode(ISD::XOR, DL, Op->getValueType(0),
+ Op->getOperand(1), lowerMSASplatImm(Op, 2, DAG));
}
}
case Intrinsic::mips_ld_h:
case Intrinsic::mips_ld_w:
case Intrinsic::mips_ld_d:
- case Intrinsic::mips_ldx_b:
- case Intrinsic::mips_ldx_h:
- case Intrinsic::mips_ldx_w:
- case Intrinsic::mips_ldx_d:
return lowerMSALoadIntr(Op, DAG, Intr);
}
}
case Intrinsic::mips_st_h:
case Intrinsic::mips_st_w:
case Intrinsic::mips_st_d:
- case Intrinsic::mips_stx_b:
- case Intrinsic::mips_stx_h:
- case Intrinsic::mips_stx_w:
- case Intrinsic::mips_stx_d:
return lowerMSAStoreIntr(Op, DAG, Intr);
}
}
+/// \brief Check if the given BuildVectorSDNode is a splat.
+/// This method currently relies on DAG nodes being reused when equivalent,
+/// so it's possible for this to return false even when isConstantSplat returns
+/// true.
+static bool isSplatVector(const BuildVectorSDNode *N) {
+ unsigned int nOps = N->getNumOperands();
+ assert(nOps > 1 && "isSplatVector has 0 or 1 sized build vector");
+
+ SDValue Operand0 = N->getOperand(0);
+
+ for (unsigned int i = 1; i < nOps; ++i) {
+ if (N->getOperand(i) != Operand0)
+ return false;
+ }
+
+ return true;
+}
+
+// Lower ISD::EXTRACT_VECTOR_ELT into MipsISD::VEXTRACT_SEXT_ELT.
+//
+// The non-value bits resulting from ISD::EXTRACT_VECTOR_ELT are undefined. We
+// choose to sign-extend but we could have equally chosen zero-extend. The
+// DAGCombiner will fold any sign/zero extension of the ISD::EXTRACT_VECTOR_ELT
+// result into this node later (possibly changing it to a zero-extend in the
+// process).
+SDValue MipsSETargetLowering::
+lowerEXTRACT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG) const {
+ SDLoc DL(Op);
+ EVT ResTy = Op->getValueType(0);
+ SDValue Op0 = Op->getOperand(0);
+ EVT VecTy = Op0->getValueType(0);
+
+ if (!VecTy.is128BitVector())
+ return SDValue();
+
+ if (ResTy.isInteger()) {
+ SDValue Op1 = Op->getOperand(1);
+ EVT EltTy = VecTy.getVectorElementType();
+ return DAG.getNode(MipsISD::VEXTRACT_SEXT_ELT, DL, ResTy, Op0, Op1,
+ DAG.getValueType(EltTy));
+ }
+
+ return Op;
+}
+
+static bool isConstantOrUndef(const SDValue Op) {
+ if (Op->getOpcode() == ISD::UNDEF)
+ return true;
+ if (dyn_cast<ConstantSDNode>(Op))
+ return true;
+ if (dyn_cast<ConstantFPSDNode>(Op))
+ return true;
+ return false;
+}
+
+static bool isConstantOrUndefBUILD_VECTOR(const BuildVectorSDNode *Op) {
+ for (unsigned i = 0; i < Op->getNumOperands(); ++i)
+ if (isConstantOrUndef(Op->getOperand(i)))
+ return true;
+ return false;
+}
+
+// Lowers ISD::BUILD_VECTOR into appropriate SelectionDAG nodes for the
+// backend.
+//
+// Lowers according to the following rules:
+// - Constant splats are legal as-is as long as the SplatBitSize is a power of
+// 2 less than or equal to 64 and the value fits into a signed 10-bit
+// immediate
+// - Constant splats are lowered to bitconverted BUILD_VECTORs if SplatBitSize
+// is a power of 2 less than or equal to 64 and the value does not fit into a
+// signed 10-bit immediate
+// - Non-constant splats are legal as-is.
+// - Non-constant non-splats are lowered to sequences of INSERT_VECTOR_ELT.
+// - All others are illegal and must be expanded.
+SDValue MipsSETargetLowering::lowerBUILD_VECTOR(SDValue Op,
+ SelectionDAG &DAG) const {
+ BuildVectorSDNode *Node = cast<BuildVectorSDNode>(Op);
+ EVT ResTy = Op->getValueType(0);
+ SDLoc DL(Op);
+ APInt SplatValue, SplatUndef;
+ unsigned SplatBitSize;
+ bool HasAnyUndefs;
+
+ if (!Subtarget.hasMSA() || !ResTy.is128BitVector())
+ return SDValue();
+
+ if (Node->isConstantSplat(SplatValue, SplatUndef, SplatBitSize,
+ HasAnyUndefs, 8,
+ !Subtarget.isLittle()) && SplatBitSize <= 64) {
+ // We can only cope with 8, 16, 32, or 64-bit elements
+ if (SplatBitSize != 8 && SplatBitSize != 16 && SplatBitSize != 32 &&
+ SplatBitSize != 64)
+ return SDValue();
+
+ // If the value fits into a simm10 then we can use ldi.[bhwd]
+ // However, if it isn't an integer type we will have to bitcast from an
+ // integer type first. Also, if there are any undefs, we must lower them
+ // to defined values first.
+ if (ResTy.isInteger() && !HasAnyUndefs && SplatValue.isSignedIntN(10))
+ return Op;
+
+ EVT ViaVecTy;
+
+ switch (SplatBitSize) {
+ default:
+ return SDValue();
+ case 8:
+ ViaVecTy = MVT::v16i8;
+ break;
+ case 16:
+ ViaVecTy = MVT::v8i16;
+ break;
+ case 32:
+ ViaVecTy = MVT::v4i32;
+ break;
+ case 64:
+ // There's no fill.d to fall back on for 64-bit values
+ return SDValue();
+ }
+
+ // SelectionDAG::getConstant will promote SplatValue appropriately.
+ SDValue Result = DAG.getConstant(SplatValue, ViaVecTy);
+
+ // Bitcast to the type we originally wanted
+ if (ViaVecTy != ResTy)
+ Result = DAG.getNode(ISD::BITCAST, SDLoc(Node), ResTy, Result);
+
+ return Result;
+ } else if (isSplatVector(Node))
+ return Op;
+ else if (!isConstantOrUndefBUILD_VECTOR(Node)) {
+ // Use INSERT_VECTOR_ELT operations rather than expand to stores.
+ // The resulting code is the same length as the expansion, but it doesn't
+ // use memory operations
+ EVT ResTy = Node->getValueType(0);
+
+ assert(ResTy.isVector());
+
+ unsigned NumElts = ResTy.getVectorNumElements();
+ SDValue Vector = DAG.getUNDEF(ResTy);
+ for (unsigned i = 0; i < NumElts; ++i) {
+ Vector = DAG.getNode(ISD::INSERT_VECTOR_ELT, DL, ResTy, Vector,
+ Node->getOperand(i),
+ DAG.getConstant(i, MVT::i32));
+ }
+ return Vector;
+ }
+
+ return SDValue();
+}
+
+// Lower VECTOR_SHUFFLE into SHF (if possible).
+//
+// SHF splits the vector into blocks of four elements, then shuffles these
+// elements according to a <4 x i2> constant (encoded as an integer immediate).
+//
+// It is therefore possible to lower into SHF when the mask takes the form:
+// <a, b, c, d, a+4, b+4, c+4, d+4, a+8, b+8, c+8, d+8, ...>
+// When undef's appear they are treated as if they were whatever value is
+// necessary in order to fit the above form.
+//
+// For example:
+// %2 = shufflevector <8 x i16> %0, <8 x i16> undef,
+// <8 x i32> <i32 3, i32 2, i32 1, i32 0,
+// i32 7, i32 6, i32 5, i32 4>
+// is lowered to:
+// (SHF_H $w0, $w1, 27)
+// where the 27 comes from:
+// 3 + (2 << 2) + (1 << 4) + (0 << 6)
+static SDValue lowerVECTOR_SHUFFLE_SHF(SDValue Op, EVT ResTy,
+ SmallVector<int, 16> Indices,
+ SelectionDAG &DAG) {
+ int SHFIndices[4] = { -1, -1, -1, -1 };
+
+ if (Indices.size() < 4)
+ return SDValue();
+
+ for (unsigned i = 0; i < 4; ++i) {
+ for (unsigned j = i; j < Indices.size(); j += 4) {
+ int Idx = Indices[j];
+
+ // Convert from vector index to 4-element subvector index
+ // If an index refers to an element outside of the subvector then give up
+ if (Idx != -1) {
+ Idx -= 4 * (j / 4);
+ if (Idx < 0 || Idx >= 4)
+ return SDValue();
+ }
+
+ // If the mask has an undef, replace it with the current index.
+ // Note that it might still be undef if the current index is also undef
+ if (SHFIndices[i] == -1)
+ SHFIndices[i] = Idx;
+
+ // Check that non-undef values are the same as in the mask. If they
+ // aren't then give up
+ if (!(Idx == -1 || Idx == SHFIndices[i]))
+ return SDValue();
+ }
+ }
+
+ // Calculate the immediate. Replace any remaining undefs with zero
+ APInt Imm(32, 0);
+ for (int i = 3; i >= 0; --i) {
+ int Idx = SHFIndices[i];
+
+ if (Idx == -1)
+ Idx = 0;
+
+ Imm <<= 2;
+ Imm |= Idx & 0x3;
+ }
+
+ return DAG.getNode(MipsISD::SHF, SDLoc(Op), ResTy,
+ DAG.getConstant(Imm, MVT::i32), Op->getOperand(0));
+}
+
+// Lower VECTOR_SHUFFLE into ILVEV (if possible).
+//
+// ILVEV interleaves the even elements from each vector.
+//
+// It is possible to lower into ILVEV when the mask takes the form:
+// <0, n, 2, n+2, 4, n+4, ...>
+// where n is the number of elements in the vector.
+//
+// When undef's appear in the mask they are treated as if they were whatever
+// value is necessary in order to fit the above form.
+static SDValue lowerVECTOR_SHUFFLE_ILVEV(SDValue Op, EVT ResTy,
+ SmallVector<int, 16> Indices,
+ SelectionDAG &DAG) {
+ assert ((Indices.size() % 2) == 0);
+ int WsIdx = 0;
+ int WtIdx = ResTy.getVectorNumElements();
+
+ for (unsigned i = 0; i < Indices.size(); i += 2) {
+ if (Indices[i] != -1 && Indices[i] != WsIdx)
+ return SDValue();
+ if (Indices[i+1] != -1 && Indices[i+1] != WtIdx)
+ return SDValue();
+ WsIdx += 2;
+ WtIdx += 2;
+ }
+
+ return DAG.getNode(MipsISD::ILVEV, SDLoc(Op), ResTy, Op->getOperand(0),
+ Op->getOperand(1));
+}
+
+// Lower VECTOR_SHUFFLE into ILVOD (if possible).
+//
+// ILVOD interleaves the odd elements from each vector.
+//
+// It is possible to lower into ILVOD when the mask takes the form:
+// <1, n+1, 3, n+3, 5, n+5, ...>
+// where n is the number of elements in the vector.
+//
+// When undef's appear in the mask they are treated as if they were whatever
+// value is necessary in order to fit the above form.
+static SDValue lowerVECTOR_SHUFFLE_ILVOD(SDValue Op, EVT ResTy,
+ SmallVector<int, 16> Indices,
+ SelectionDAG &DAG) {
+ assert ((Indices.size() % 2) == 0);
+ int WsIdx = 1;
+ int WtIdx = ResTy.getVectorNumElements() + 1;
+
+ for (unsigned i = 0; i < Indices.size(); i += 2) {
+ if (Indices[i] != -1 && Indices[i] != WsIdx)
+ return SDValue();
+ if (Indices[i+1] != -1 && Indices[i+1] != WtIdx)
+ return SDValue();
+ WsIdx += 2;
+ WtIdx += 2;
+ }
+
+ return DAG.getNode(MipsISD::ILVOD, SDLoc(Op), ResTy, Op->getOperand(0),
+ Op->getOperand(1));
+}
+
+// Lower VECTOR_SHUFFLE into ILVL (if possible).
+//
+// ILVL interleaves consecutive elements from the left half of each vector.
+//
+// It is possible to lower into ILVL when the mask takes the form:
+// <0, n, 1, n+1, 2, n+2, ...>
+// where n is the number of elements in the vector.
+//
+// When undef's appear in the mask they are treated as if they were whatever
+// value is necessary in order to fit the above form.
+static SDValue lowerVECTOR_SHUFFLE_ILVL(SDValue Op, EVT ResTy,
+ SmallVector<int, 16> Indices,
+ SelectionDAG &DAG) {
+ assert ((Indices.size() % 2) == 0);
+ int WsIdx = 0;
+ int WtIdx = ResTy.getVectorNumElements();
+
+ for (unsigned i = 0; i < Indices.size(); i += 2) {
+ if (Indices[i] != -1 && Indices[i] != WsIdx)
+ return SDValue();
+ if (Indices[i+1] != -1 && Indices[i+1] != WtIdx)
+ return SDValue();
+ WsIdx ++;
+ WtIdx ++;
+ }
+
+ return DAG.getNode(MipsISD::ILVL, SDLoc(Op), ResTy, Op->getOperand(0),
+ Op->getOperand(1));
+}
+
+// Lower VECTOR_SHUFFLE into ILVR (if possible).
+//
+// ILVR interleaves consecutive elements from the right half of each vector.
+//
+// It is possible to lower into ILVR when the mask takes the form:
+// <x, n+x, x+1, n+x+1, x+2, n+x+2, ...>
+// where n is the number of elements in the vector and x is half n.
+//
+// When undef's appear in the mask they are treated as if they were whatever
+// value is necessary in order to fit the above form.
+static SDValue lowerVECTOR_SHUFFLE_ILVR(SDValue Op, EVT ResTy,
+ SmallVector<int, 16> Indices,
+ SelectionDAG &DAG) {
+ assert ((Indices.size() % 2) == 0);
+ unsigned NumElts = ResTy.getVectorNumElements();
+ int WsIdx = NumElts / 2;
+ int WtIdx = NumElts + NumElts / 2;
+
+ for (unsigned i = 0; i < Indices.size(); i += 2) {
+ if (Indices[i] != -1 && Indices[i] != WsIdx)
+ return SDValue();
+ if (Indices[i+1] != -1 && Indices[i+1] != WtIdx)
+ return SDValue();
+ WsIdx ++;
+ WtIdx ++;
+ }
+
+ return DAG.getNode(MipsISD::ILVR, SDLoc(Op), ResTy, Op->getOperand(0),
+ Op->getOperand(1));
+}
+
+// Lower VECTOR_SHUFFLE into PCKEV (if possible).
+//
+// PCKEV copies the even elements of each vector into the result vector.
+//
+// It is possible to lower into PCKEV when the mask takes the form:
+// <0, 2, 4, ..., n, n+2, n+4, ...>
+// where n is the number of elements in the vector.
+//
+// When undef's appear in the mask they are treated as if they were whatever
+// value is necessary in order to fit the above form.
+static SDValue lowerVECTOR_SHUFFLE_PCKEV(SDValue Op, EVT ResTy,
+ SmallVector<int, 16> Indices,
+ SelectionDAG &DAG) {
+ assert ((Indices.size() % 2) == 0);
+ int Idx = 0;
+
+ for (unsigned i = 0; i < Indices.size(); ++i) {
+ if (Indices[i] != -1 && Indices[i] != Idx)
+ return SDValue();
+ Idx += 2;
+ }
+
+ return DAG.getNode(MipsISD::PCKEV, SDLoc(Op), ResTy, Op->getOperand(0),
+ Op->getOperand(1));
+}
+
+// Lower VECTOR_SHUFFLE into PCKOD (if possible).
+//
+// PCKOD copies the odd elements of each vector into the result vector.
+//
+// It is possible to lower into PCKOD when the mask takes the form:
+// <1, 3, 5, ..., n+1, n+3, n+5, ...>
+// where n is the number of elements in the vector.
+//
+// When undef's appear in the mask they are treated as if they were whatever
+// value is necessary in order to fit the above form.
+static SDValue lowerVECTOR_SHUFFLE_PCKOD(SDValue Op, EVT ResTy,
+ SmallVector<int, 16> Indices,
+ SelectionDAG &DAG) {
+ assert ((Indices.size() % 2) == 0);
+ int Idx = 1;
+
+ for (unsigned i = 0; i < Indices.size(); ++i) {
+ if (Indices[i] != -1 && Indices[i] != Idx)
+ return SDValue();
+ Idx += 2;
+ }
+
+ return DAG.getNode(MipsISD::PCKOD, SDLoc(Op), ResTy, Op->getOperand(0),
+ Op->getOperand(1));
+}
+
+// Lower VECTOR_SHUFFLE into VSHF.
+//
+// This mostly consists of converting the shuffle indices in Indices into a
+// BUILD_VECTOR and adding it as an operand to the resulting VSHF. There is
+// also code to eliminate unused operands of the VECTOR_SHUFFLE. For example,
+// if the type is v8i16 and all the indices are less than 8 then the second
+// operand is unused and can be replaced with anything. We choose to replace it
+// with the used operand since this reduces the number of instructions overall.
+static SDValue lowerVECTOR_SHUFFLE_VSHF(SDValue Op, EVT ResTy,
+ SmallVector<int, 16> Indices,
+ SelectionDAG &DAG) {
+ SmallVector<SDValue, 16> Ops;
+ SDValue Op0;
+ SDValue Op1;
+ EVT MaskVecTy = ResTy.changeVectorElementTypeToInteger();
+ EVT MaskEltTy = MaskVecTy.getVectorElementType();
+ bool Using1stVec = false;
+ bool Using2ndVec = false;
+ SDLoc DL(Op);
+ int ResTyNumElts = ResTy.getVectorNumElements();
+
+ for (int i = 0; i < ResTyNumElts; ++i) {
+ // Idx == -1 means UNDEF
+ int Idx = Indices[i];
+
+ if (0 <= Idx && Idx < ResTyNumElts)
+ Using1stVec = true;
+ if (ResTyNumElts <= Idx && Idx < ResTyNumElts * 2)
+ Using2ndVec = true;
+ }
+
+ for (SmallVector<int, 16>::iterator I = Indices.begin(); I != Indices.end();
+ ++I)
+ Ops.push_back(DAG.getTargetConstant(*I, MaskEltTy));
+
+ SDValue MaskVec = DAG.getNode(ISD::BUILD_VECTOR, DL, MaskVecTy, Ops);
+
+ if (Using1stVec && Using2ndVec) {
+ Op0 = Op->getOperand(0);
+ Op1 = Op->getOperand(1);
+ } else if (Using1stVec)
+ Op0 = Op1 = Op->getOperand(0);
+ else if (Using2ndVec)
+ Op0 = Op1 = Op->getOperand(1);
+ else
+ llvm_unreachable("shuffle vector mask references neither vector operand?");
+
+ // VECTOR_SHUFFLE concatenates the vectors in an vectorwise fashion.
+ // <0b00, 0b01> + <0b10, 0b11> -> <0b00, 0b01, 0b10, 0b11>
+ // VSHF concatenates the vectors in a bitwise fashion:
+ // <0b00, 0b01> + <0b10, 0b11> ->
+ // 0b0100 + 0b1110 -> 0b01001110
+ // <0b10, 0b11, 0b00, 0b01>
+ // We must therefore swap the operands to get the correct result.
+ return DAG.getNode(MipsISD::VSHF, DL, ResTy, MaskVec, Op1, Op0);
+}
+
+// Lower VECTOR_SHUFFLE into one of a number of instructions depending on the
+// indices in the shuffle.
+SDValue MipsSETargetLowering::lowerVECTOR_SHUFFLE(SDValue Op,
+ SelectionDAG &DAG) const {
+ ShuffleVectorSDNode *Node = cast<ShuffleVectorSDNode>(Op);
+ EVT ResTy = Op->getValueType(0);
+
+ if (!ResTy.is128BitVector())
+ return SDValue();
+
+ int ResTyNumElts = ResTy.getVectorNumElements();
+ SmallVector<int, 16> Indices;
+
+ for (int i = 0; i < ResTyNumElts; ++i)
+ Indices.push_back(Node->getMaskElt(i));
+
+ SDValue Result = lowerVECTOR_SHUFFLE_SHF(Op, ResTy, Indices, DAG);
+ if (Result.getNode())
+ return Result;
+ Result = lowerVECTOR_SHUFFLE_ILVEV(Op, ResTy, Indices, DAG);
+ if (Result.getNode())
+ return Result;
+ Result = lowerVECTOR_SHUFFLE_ILVOD(Op, ResTy, Indices, DAG);
+ if (Result.getNode())
+ return Result;
+ Result = lowerVECTOR_SHUFFLE_ILVL(Op, ResTy, Indices, DAG);
+ if (Result.getNode())
+ return Result;
+ Result = lowerVECTOR_SHUFFLE_ILVR(Op, ResTy, Indices, DAG);
+ if (Result.getNode())
+ return Result;
+ Result = lowerVECTOR_SHUFFLE_PCKEV(Op, ResTy, Indices, DAG);
+ if (Result.getNode())
+ return Result;
+ Result = lowerVECTOR_SHUFFLE_PCKOD(Op, ResTy, Indices, DAG);
+ if (Result.getNode())
+ return Result;
+ return lowerVECTOR_SHUFFLE_VSHF(Op, ResTy, Indices, DAG);
+}
+
MachineBasicBlock * MipsSETargetLowering::
emitBPOSGE32(MachineInstr *MI, MachineBasicBlock *BB) const{
// $bb:
const TargetRegisterClass *RC = &Mips::GPR32RegClass;
DebugLoc DL = MI->getDebugLoc();
const BasicBlock *LLVM_BB = BB->getBasicBlock();
- MachineFunction::iterator It = llvm::next(MachineFunction::iterator(BB));
+ MachineFunction::iterator It = std::next(MachineFunction::iterator(BB));
MachineFunction *F = BB->getParent();
MachineBasicBlock *FBB = F->CreateMachineBasicBlock(LLVM_BB);
MachineBasicBlock *TBB = F->CreateMachineBasicBlock(LLVM_BB);
F->insert(It, Sink);
// Transfer the remainder of BB and its successor edges to Sink.
- Sink->splice(Sink->begin(), BB, llvm::next(MachineBasicBlock::iterator(MI)),
+ Sink->splice(Sink->begin(), BB, std::next(MachineBasicBlock::iterator(MI)),
BB->end());
Sink->transferSuccessorsAndUpdatePHIs(BB);
const TargetRegisterClass *RC = &Mips::GPR32RegClass;
DebugLoc DL = MI->getDebugLoc();
const BasicBlock *LLVM_BB = BB->getBasicBlock();
- MachineFunction::iterator It = llvm::next(MachineFunction::iterator(BB));
+ MachineFunction::iterator It = std::next(MachineFunction::iterator(BB));
MachineFunction *F = BB->getParent();
MachineBasicBlock *FBB = F->CreateMachineBasicBlock(LLVM_BB);
MachineBasicBlock *TBB = F->CreateMachineBasicBlock(LLVM_BB);
F->insert(It, Sink);
// Transfer the remainder of BB and its successor edges to Sink.
- Sink->splice(Sink->begin(), BB, llvm::next(MachineBasicBlock::iterator(MI)),
+ Sink->splice(Sink->begin(), BB, std::next(MachineBasicBlock::iterator(MI)),
BB->end());
Sink->transferSuccessorsAndUpdatePHIs(BB);
MI->eraseFromParent(); // The pseudo instruction is gone now.
return Sink;
}
+
+// Emit the COPY_FW pseudo instruction.
+//
+// copy_fw_pseudo $fd, $ws, n
+// =>
+// copy_u_w $rt, $ws, $n
+// mtc1 $rt, $fd
+//
+// When n is zero, the equivalent operation can be performed with (potentially)
+// zero instructions due to register overlaps. This optimization is never valid
+// for lane 1 because it would require FR=0 mode which isn't supported by MSA.
+MachineBasicBlock * MipsSETargetLowering::
+emitCOPY_FW(MachineInstr *MI, MachineBasicBlock *BB) const{
+ const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
+ MachineRegisterInfo &RegInfo = BB->getParent()->getRegInfo();
+ DebugLoc DL = MI->getDebugLoc();
+ unsigned Fd = MI->getOperand(0).getReg();
+ unsigned Ws = MI->getOperand(1).getReg();
+ unsigned Lane = MI->getOperand(2).getImm();
+
+ if (Lane == 0)
+ BuildMI(*BB, MI, DL, TII->get(Mips::COPY), Fd).addReg(Ws, 0, Mips::sub_lo);
+ else {
+ unsigned Wt = RegInfo.createVirtualRegister(&Mips::MSA128WRegClass);
+
+ BuildMI(*BB, MI, DL, TII->get(Mips::SPLATI_W), Wt).addReg(Ws).addImm(Lane);
+ BuildMI(*BB, MI, DL, TII->get(Mips::COPY), Fd).addReg(Wt, 0, Mips::sub_lo);
+ }
+
+ MI->eraseFromParent(); // The pseudo instruction is gone now.
+ return BB;
+}
+
+// Emit the COPY_FD pseudo instruction.
+//
+// copy_fd_pseudo $fd, $ws, n
+// =>
+// splati.d $wt, $ws, $n
+// copy $fd, $wt:sub_64
+//
+// When n is zero, the equivalent operation can be performed with (potentially)
+// zero instructions due to register overlaps. This optimization is always
+// valid because FR=1 mode which is the only supported mode in MSA.
+MachineBasicBlock * MipsSETargetLowering::
+emitCOPY_FD(MachineInstr *MI, MachineBasicBlock *BB) const{
+ assert(Subtarget.isFP64bit());
+
+ const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
+ MachineRegisterInfo &RegInfo = BB->getParent()->getRegInfo();
+ unsigned Fd = MI->getOperand(0).getReg();
+ unsigned Ws = MI->getOperand(1).getReg();
+ unsigned Lane = MI->getOperand(2).getImm() * 2;
+ DebugLoc DL = MI->getDebugLoc();
+
+ if (Lane == 0)
+ BuildMI(*BB, MI, DL, TII->get(Mips::COPY), Fd).addReg(Ws, 0, Mips::sub_64);
+ else {
+ unsigned Wt = RegInfo.createVirtualRegister(&Mips::MSA128DRegClass);
+
+ BuildMI(*BB, MI, DL, TII->get(Mips::SPLATI_D), Wt).addReg(Ws).addImm(1);
+ BuildMI(*BB, MI, DL, TII->get(Mips::COPY), Fd).addReg(Wt, 0, Mips::sub_64);
+ }
+
+ MI->eraseFromParent(); // The pseudo instruction is gone now.
+ return BB;
+}
+
+// Emit the INSERT_FW pseudo instruction.
+//
+// insert_fw_pseudo $wd, $wd_in, $n, $fs
+// =>
+// subreg_to_reg $wt:sub_lo, $fs
+// insve_w $wd[$n], $wd_in, $wt[0]
+MachineBasicBlock *
+MipsSETargetLowering::emitINSERT_FW(MachineInstr *MI,
+ MachineBasicBlock *BB) const {
+ const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
+ MachineRegisterInfo &RegInfo = BB->getParent()->getRegInfo();
+ DebugLoc DL = MI->getDebugLoc();
+ unsigned Wd = MI->getOperand(0).getReg();
+ unsigned Wd_in = MI->getOperand(1).getReg();
+ unsigned Lane = MI->getOperand(2).getImm();
+ unsigned Fs = MI->getOperand(3).getReg();
+ unsigned Wt = RegInfo.createVirtualRegister(&Mips::MSA128WRegClass);
+
+ BuildMI(*BB, MI, DL, TII->get(Mips::SUBREG_TO_REG), Wt)
+ .addImm(0)
+ .addReg(Fs)
+ .addImm(Mips::sub_lo);
+ BuildMI(*BB, MI, DL, TII->get(Mips::INSVE_W), Wd)
+ .addReg(Wd_in)
+ .addImm(Lane)
+ .addReg(Wt)
+ .addImm(0);
+
+ MI->eraseFromParent(); // The pseudo instruction is gone now.
+ return BB;
+}
+
+// Emit the INSERT_FD pseudo instruction.
+//
+// insert_fd_pseudo $wd, $fs, n
+// =>
+// subreg_to_reg $wt:sub_64, $fs
+// insve_d $wd[$n], $wd_in, $wt[0]
+MachineBasicBlock *
+MipsSETargetLowering::emitINSERT_FD(MachineInstr *MI,
+ MachineBasicBlock *BB) const {
+ assert(Subtarget.isFP64bit());
+
+ const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
+ MachineRegisterInfo &RegInfo = BB->getParent()->getRegInfo();
+ DebugLoc DL = MI->getDebugLoc();
+ unsigned Wd = MI->getOperand(0).getReg();
+ unsigned Wd_in = MI->getOperand(1).getReg();
+ unsigned Lane = MI->getOperand(2).getImm();
+ unsigned Fs = MI->getOperand(3).getReg();
+ unsigned Wt = RegInfo.createVirtualRegister(&Mips::MSA128DRegClass);
+
+ BuildMI(*BB, MI, DL, TII->get(Mips::SUBREG_TO_REG), Wt)
+ .addImm(0)
+ .addReg(Fs)
+ .addImm(Mips::sub_64);
+ BuildMI(*BB, MI, DL, TII->get(Mips::INSVE_D), Wd)
+ .addReg(Wd_in)
+ .addImm(Lane)
+ .addReg(Wt)
+ .addImm(0);
+
+ MI->eraseFromParent(); // The pseudo instruction is gone now.
+ return BB;
+}
+
+// Emit the INSERT_([BHWD]|F[WD])_VIDX pseudo instruction.
+//
+// For integer:
+// (INSERT_([BHWD]|F[WD])_PSEUDO $wd, $wd_in, $n, $rs)
+// =>
+// (SLL $lanetmp1, $lane, <log2size)
+// (SLD_B $wdtmp1, $wd_in, $wd_in, $lanetmp1)
+// (INSERT_[BHWD], $wdtmp2, $wdtmp1, 0, $rs)
+// (NEG $lanetmp2, $lanetmp1)
+// (SLD_B $wd, $wdtmp2, $wdtmp2, $lanetmp2)
+//
+// For floating point:
+// (INSERT_([BHWD]|F[WD])_PSEUDO $wd, $wd_in, $n, $fs)
+// =>
+// (SUBREG_TO_REG $wt, $fs, <subreg>)
+// (SLL $lanetmp1, $lane, <log2size)
+// (SLD_B $wdtmp1, $wd_in, $wd_in, $lanetmp1)
+// (INSVE_[WD], $wdtmp2, 0, $wdtmp1, 0)
+// (NEG $lanetmp2, $lanetmp1)
+// (SLD_B $wd, $wdtmp2, $wdtmp2, $lanetmp2)
+MachineBasicBlock *
+MipsSETargetLowering::emitINSERT_DF_VIDX(MachineInstr *MI,
+ MachineBasicBlock *BB,
+ unsigned EltSizeInBytes,
+ bool IsFP) const {
+ const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
+ MachineRegisterInfo &RegInfo = BB->getParent()->getRegInfo();
+ DebugLoc DL = MI->getDebugLoc();
+ unsigned Wd = MI->getOperand(0).getReg();
+ unsigned SrcVecReg = MI->getOperand(1).getReg();
+ unsigned LaneReg = MI->getOperand(2).getReg();
+ unsigned SrcValReg = MI->getOperand(3).getReg();
+
+ const TargetRegisterClass *VecRC = nullptr;
+ const TargetRegisterClass *GPRRC =
+ Subtarget.isGP64bit() ? &Mips::GPR64RegClass : &Mips::GPR32RegClass;
+ unsigned EltLog2Size;
+ unsigned InsertOp = 0;
+ unsigned InsveOp = 0;
+ switch (EltSizeInBytes) {
+ default:
+ llvm_unreachable("Unexpected size");
+ case 1:
+ EltLog2Size = 0;
+ InsertOp = Mips::INSERT_B;
+ InsveOp = Mips::INSVE_B;
+ VecRC = &Mips::MSA128BRegClass;
+ break;
+ case 2:
+ EltLog2Size = 1;
+ InsertOp = Mips::INSERT_H;
+ InsveOp = Mips::INSVE_H;
+ VecRC = &Mips::MSA128HRegClass;
+ break;
+ case 4:
+ EltLog2Size = 2;
+ InsertOp = Mips::INSERT_W;
+ InsveOp = Mips::INSVE_W;
+ VecRC = &Mips::MSA128WRegClass;
+ break;
+ case 8:
+ EltLog2Size = 3;
+ InsertOp = Mips::INSERT_D;
+ InsveOp = Mips::INSVE_D;
+ VecRC = &Mips::MSA128DRegClass;
+ break;
+ }
+
+ if (IsFP) {
+ unsigned Wt = RegInfo.createVirtualRegister(VecRC);
+ BuildMI(*BB, MI, DL, TII->get(Mips::SUBREG_TO_REG), Wt)
+ .addImm(0)
+ .addReg(SrcValReg)
+ .addImm(EltSizeInBytes == 8 ? Mips::sub_64 : Mips::sub_lo);
+ SrcValReg = Wt;
+ }
+
+ // Convert the lane index into a byte index
+ if (EltSizeInBytes != 1) {
+ unsigned LaneTmp1 = RegInfo.createVirtualRegister(GPRRC);
+ BuildMI(*BB, MI, DL, TII->get(Mips::SLL), LaneTmp1)
+ .addReg(LaneReg)
+ .addImm(EltLog2Size);
+ LaneReg = LaneTmp1;
+ }
+
+ // Rotate bytes around so that the desired lane is element zero
+ unsigned WdTmp1 = RegInfo.createVirtualRegister(VecRC);
+ BuildMI(*BB, MI, DL, TII->get(Mips::SLD_B), WdTmp1)
+ .addReg(SrcVecReg)
+ .addReg(SrcVecReg)
+ .addReg(LaneReg);
+
+ unsigned WdTmp2 = RegInfo.createVirtualRegister(VecRC);
+ if (IsFP) {
+ // Use insve.df to insert to element zero
+ BuildMI(*BB, MI, DL, TII->get(InsveOp), WdTmp2)
+ .addReg(WdTmp1)
+ .addImm(0)
+ .addReg(SrcValReg)
+ .addImm(0);
+ } else {
+ // Use insert.df to insert to element zero
+ BuildMI(*BB, MI, DL, TII->get(InsertOp), WdTmp2)
+ .addReg(WdTmp1)
+ .addReg(SrcValReg)
+ .addImm(0);
+ }
+
+ // Rotate elements the rest of the way for a full rotation.
+ // sld.df inteprets $rt modulo the number of columns so we only need to negate
+ // the lane index to do this.
+ unsigned LaneTmp2 = RegInfo.createVirtualRegister(GPRRC);
+ BuildMI(*BB, MI, DL, TII->get(Mips::SUB), LaneTmp2)
+ .addReg(Mips::ZERO)
+ .addReg(LaneReg);
+ BuildMI(*BB, MI, DL, TII->get(Mips::SLD_B), Wd)
+ .addReg(WdTmp2)
+ .addReg(WdTmp2)
+ .addReg(LaneTmp2);
+
+ MI->eraseFromParent(); // The pseudo instruction is gone now.
+ return BB;
+}
+
+// Emit the FILL_FW pseudo instruction.
+//
+// fill_fw_pseudo $wd, $fs
+// =>
+// implicit_def $wt1
+// insert_subreg $wt2:subreg_lo, $wt1, $fs
+// splati.w $wd, $wt2[0]
+MachineBasicBlock *
+MipsSETargetLowering::emitFILL_FW(MachineInstr *MI,
+ MachineBasicBlock *BB) const {
+ const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
+ MachineRegisterInfo &RegInfo = BB->getParent()->getRegInfo();
+ DebugLoc DL = MI->getDebugLoc();
+ unsigned Wd = MI->getOperand(0).getReg();
+ unsigned Fs = MI->getOperand(1).getReg();
+ unsigned Wt1 = RegInfo.createVirtualRegister(&Mips::MSA128WRegClass);
+ unsigned Wt2 = RegInfo.createVirtualRegister(&Mips::MSA128WRegClass);
+
+ BuildMI(*BB, MI, DL, TII->get(Mips::IMPLICIT_DEF), Wt1);
+ BuildMI(*BB, MI, DL, TII->get(Mips::INSERT_SUBREG), Wt2)
+ .addReg(Wt1)
+ .addReg(Fs)
+ .addImm(Mips::sub_lo);
+ BuildMI(*BB, MI, DL, TII->get(Mips::SPLATI_W), Wd).addReg(Wt2).addImm(0);
+
+ MI->eraseFromParent(); // The pseudo instruction is gone now.
+ return BB;
+}
+
+// Emit the FILL_FD pseudo instruction.
+//
+// fill_fd_pseudo $wd, $fs
+// =>
+// implicit_def $wt1
+// insert_subreg $wt2:subreg_64, $wt1, $fs
+// splati.d $wd, $wt2[0]
+MachineBasicBlock *
+MipsSETargetLowering::emitFILL_FD(MachineInstr *MI,
+ MachineBasicBlock *BB) const {
+ assert(Subtarget.isFP64bit());
+
+ const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
+ MachineRegisterInfo &RegInfo = BB->getParent()->getRegInfo();
+ DebugLoc DL = MI->getDebugLoc();
+ unsigned Wd = MI->getOperand(0).getReg();
+ unsigned Fs = MI->getOperand(1).getReg();
+ unsigned Wt1 = RegInfo.createVirtualRegister(&Mips::MSA128DRegClass);
+ unsigned Wt2 = RegInfo.createVirtualRegister(&Mips::MSA128DRegClass);
+
+ BuildMI(*BB, MI, DL, TII->get(Mips::IMPLICIT_DEF), Wt1);
+ BuildMI(*BB, MI, DL, TII->get(Mips::INSERT_SUBREG), Wt2)
+ .addReg(Wt1)
+ .addReg(Fs)
+ .addImm(Mips::sub_64);
+ BuildMI(*BB, MI, DL, TII->get(Mips::SPLATI_D), Wd).addReg(Wt2).addImm(0);
+
+ MI->eraseFromParent(); // The pseudo instruction is gone now.
+ return BB;
+}
+
+// Emit the FEXP2_W_1 pseudo instructions.
+//
+// fexp2_w_1_pseudo $wd, $wt
+// =>
+// ldi.w $ws, 1
+// fexp2.w $wd, $ws, $wt
+MachineBasicBlock *
+MipsSETargetLowering::emitFEXP2_W_1(MachineInstr *MI,
+ MachineBasicBlock *BB) const {
+ const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
+ MachineRegisterInfo &RegInfo = BB->getParent()->getRegInfo();
+ const TargetRegisterClass *RC = &Mips::MSA128WRegClass;
+ unsigned Ws1 = RegInfo.createVirtualRegister(RC);
+ unsigned Ws2 = RegInfo.createVirtualRegister(RC);
+ DebugLoc DL = MI->getDebugLoc();
+
+ // Splat 1.0 into a vector
+ BuildMI(*BB, MI, DL, TII->get(Mips::LDI_W), Ws1).addImm(1);
+ BuildMI(*BB, MI, DL, TII->get(Mips::FFINT_U_W), Ws2).addReg(Ws1);
+
+ // Emit 1.0 * fexp2(Wt)
+ BuildMI(*BB, MI, DL, TII->get(Mips::FEXP2_W), MI->getOperand(0).getReg())
+ .addReg(Ws2)
+ .addReg(MI->getOperand(1).getReg());
+
+ MI->eraseFromParent(); // The pseudo instruction is gone now.
+ return BB;
+}
+
+// Emit the FEXP2_D_1 pseudo instructions.
+//
+// fexp2_d_1_pseudo $wd, $wt
+// =>
+// ldi.d $ws, 1
+// fexp2.d $wd, $ws, $wt
+MachineBasicBlock *
+MipsSETargetLowering::emitFEXP2_D_1(MachineInstr *MI,
+ MachineBasicBlock *BB) const {
+ const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
+ MachineRegisterInfo &RegInfo = BB->getParent()->getRegInfo();
+ const TargetRegisterClass *RC = &Mips::MSA128DRegClass;
+ unsigned Ws1 = RegInfo.createVirtualRegister(RC);
+ unsigned Ws2 = RegInfo.createVirtualRegister(RC);
+ DebugLoc DL = MI->getDebugLoc();
+
+ // Splat 1.0 into a vector
+ BuildMI(*BB, MI, DL, TII->get(Mips::LDI_D), Ws1).addImm(1);
+ BuildMI(*BB, MI, DL, TII->get(Mips::FFINT_U_D), Ws2).addReg(Ws1);
+
+ // Emit 1.0 * fexp2(Wt)
+ BuildMI(*BB, MI, DL, TII->get(Mips::FEXP2_D), MI->getOperand(0).getReg())
+ .addReg(Ws2)
+ .addReg(MI->getOperand(1).getReg());
+
+ MI->eraseFromParent(); // The pseudo instruction is gone now.
+ return BB;
+}
projects / oota-llvm.git / blobdiff