[llvm] r302678 - [AArch64] Enable use of reduction intrinsics.

Amara Emerson via llvm-commits llvm-commits at lists.llvm.org
Wed May 10 08:15:39 PDT 2017


Author: aemerson
Date: Wed May 10 10:15:38 2017
New Revision: 302678

URL: http://llvm.org/viewvc/llvm-project?rev=302678&view=rev
Log:
[AArch64] Enable use of reduction intrinsics.

The new experimental reduction intrinsics can now be used, so I'm enabling this
for AArch64. We will need this for SVE anyway, so it makes sense to do this for
NEON reductions as well.

The existing code to match shufflevector patterns are replaced with a direct
lowering of the reductions to AArch64-specific nodes. Tests updated with the
new, simpler, representation.

Differential Revision: https://reviews.llvm.org/D32247

Modified:
    llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.cpp
    llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.h
    llvm/trunk/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
    llvm/trunk/lib/Target/AArch64/AArch64TargetTransformInfo.h
    llvm/trunk/test/CodeGen/AArch64/aarch64-addv.ll
    llvm/trunk/test/CodeGen/AArch64/aarch64-minmaxv.ll
    llvm/trunk/test/CodeGen/AArch64/arm64-vabs.ll
    llvm/trunk/test/Transforms/LoopVectorize/AArch64/reduction-small-size.ll
    llvm/trunk/test/Transforms/SLPVectorizer/AArch64/gather-root.ll

Modified: llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.cpp?rev=302678&r1=302677&r2=302678&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.cpp Wed May 10 10:15:38 2017
@@ -553,7 +553,6 @@ AArch64TargetLowering::AArch64TargetLowe
   setTargetDAGCombine(ISD::INTRINSIC_VOID);
   setTargetDAGCombine(ISD::INTRINSIC_W_CHAIN);
   setTargetDAGCombine(ISD::INSERT_VECTOR_ELT);
-  setTargetDAGCombine(ISD::EXTRACT_VECTOR_ELT);
 
   MaxStoresPerMemset = MaxStoresPerMemsetOptSize = 8;
   MaxStoresPerMemcpy = MaxStoresPerMemcpyOptSize = 4;
@@ -659,6 +658,19 @@ AArch64TargetLowering::AArch64TargetLowe
     setOperationAction(ISD::MUL, MVT::v4i32, Custom);
     setOperationAction(ISD::MUL, MVT::v2i64, Custom);
 
+    // Vector reductions
+    for (MVT VT : MVT::integer_valuetypes()) {
+      setOperationAction(ISD::VECREDUCE_ADD, VT, Custom);
+      setOperationAction(ISD::VECREDUCE_SMAX, VT, Custom);
+      setOperationAction(ISD::VECREDUCE_SMIN, VT, Custom);
+      setOperationAction(ISD::VECREDUCE_UMAX, VT, Custom);
+      setOperationAction(ISD::VECREDUCE_UMIN, VT, Custom);
+    }
+    for (MVT VT : MVT::fp_valuetypes()) {
+      setOperationAction(ISD::VECREDUCE_FMAX, VT, Custom);
+      setOperationAction(ISD::VECREDUCE_FMIN, VT, Custom);
+    }
+
     setOperationAction(ISD::ANY_EXTEND, MVT::v4i32, Legal);
     setTruncStoreAction(MVT::v2i32, MVT::v2i16, Expand);
     // Likewise, narrowing and extending vector loads/stores aren't handled
@@ -2606,6 +2618,14 @@ SDValue AArch64TargetLowering::LowerOper
     return LowerMUL(Op, DAG);
   case ISD::INTRINSIC_WO_CHAIN:
     return LowerINTRINSIC_WO_CHAIN(Op, DAG);
+  case ISD::VECREDUCE_ADD:
+  case ISD::VECREDUCE_SMAX:
+  case ISD::VECREDUCE_SMIN:
+  case ISD::VECREDUCE_UMAX:
+  case ISD::VECREDUCE_UMIN:
+  case ISD::VECREDUCE_FMAX:
+  case ISD::VECREDUCE_FMIN:
+    return LowerVECREDUCE(Op, DAG);
   }
 }
 
@@ -7128,6 +7148,47 @@ SDValue AArch64TargetLowering::LowerVSET
   return Cmp;
 }
 
+static SDValue getReductionSDNode(unsigned Op, SDLoc DL, SDValue ScalarOp,
+                                  SelectionDAG &DAG) {
+  SDValue VecOp = ScalarOp.getOperand(0);
+  auto Rdx = DAG.getNode(Op, DL, VecOp.getSimpleValueType(), VecOp);
+  return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, DL, ScalarOp.getValueType(), Rdx,
+                     DAG.getConstant(0, DL, MVT::i64));
+}
+
+SDValue AArch64TargetLowering::LowerVECREDUCE(SDValue Op,
+                                              SelectionDAG &DAG) const {
+  SDLoc dl(Op);
+  switch (Op.getOpcode()) {
+  case ISD::VECREDUCE_ADD:
+    return getReductionSDNode(AArch64ISD::UADDV, dl, Op, DAG);
+  case ISD::VECREDUCE_SMAX:
+    return getReductionSDNode(AArch64ISD::SMAXV, dl, Op, DAG);
+  case ISD::VECREDUCE_SMIN:
+    return getReductionSDNode(AArch64ISD::SMINV, dl, Op, DAG);
+  case ISD::VECREDUCE_UMAX:
+    return getReductionSDNode(AArch64ISD::UMAXV, dl, Op, DAG);
+  case ISD::VECREDUCE_UMIN:
+    return getReductionSDNode(AArch64ISD::UMINV, dl, Op, DAG);
+  case ISD::VECREDUCE_FMAX: {
+    assert(Op->getFlags().hasNoNaNs() && "fmax vector reduction needs NoNaN flag");
+    return DAG.getNode(
+        ISD::INTRINSIC_WO_CHAIN, dl, Op.getValueType(),
+        DAG.getConstant(Intrinsic::aarch64_neon_fmaxnmv, dl, MVT::i32),
+        Op.getOperand(0));
+  }
+  case ISD::VECREDUCE_FMIN: {
+    assert(Op->getFlags().hasNoNaNs() && "fmin vector reduction needs NoNaN flag");
+    return DAG.getNode(
+        ISD::INTRINSIC_WO_CHAIN, dl, Op.getValueType(),
+        DAG.getConstant(Intrinsic::aarch64_neon_fminnmv, dl, MVT::i32),
+        Op.getOperand(0));
+  }
+  default:
+    llvm_unreachable("Unhandled reduction");
+  }
+}
+
 /// getTgtMemIntrinsic - Represent NEON load and store intrinsics as
 /// MemIntrinsicNodes.  The associated MachineMemOperands record the alignment
 /// specified in the intrinsic calls.
@@ -9490,266 +9551,6 @@ static SDValue performSTORECombine(SDNod
   return SDValue();
 }
 
-/// This function handles the log2-shuffle pattern produced by the
-/// LoopVectorizer for the across vector reduction. It consists of
-/// log2(NumVectorElements) steps and, in each step, 2^(s) elements
-/// are reduced, where s is an induction variable from 0 to
-/// log2(NumVectorElements).
-static SDValue tryMatchAcrossLaneShuffleForReduction(SDNode *N, SDValue OpV,
-                                                     unsigned Op,
-                                                     SelectionDAG &DAG) {
-  EVT VTy = OpV->getOperand(0).getValueType();
-  if (!VTy.isVector())
-    return SDValue();
-
-  int NumVecElts = VTy.getVectorNumElements();
-  if (Op == ISD::FMAXNUM || Op == ISD::FMINNUM) {
-    if (NumVecElts != 4)
-      return SDValue();
-  } else {
-    if (NumVecElts != 4 && NumVecElts != 8 && NumVecElts != 16)
-      return SDValue();
-  }
-
-  int NumExpectedSteps = APInt(8, NumVecElts).logBase2();
-  SDValue PreOp = OpV;
-  // Iterate over each step of the across vector reduction.
-  for (int CurStep = 0; CurStep != NumExpectedSteps; ++CurStep) {
-    SDValue CurOp = PreOp.getOperand(0);
-    SDValue Shuffle = PreOp.getOperand(1);
-    if (Shuffle.getOpcode() != ISD::VECTOR_SHUFFLE) {
-      // Try to swap the 1st and 2nd operand as add and min/max instructions
-      // are commutative.
-      CurOp = PreOp.getOperand(1);
-      Shuffle = PreOp.getOperand(0);
-      if (Shuffle.getOpcode() != ISD::VECTOR_SHUFFLE)
-        return SDValue();
-    }
-
-    // Check if the input vector is fed by the operator we want to handle,
-    // except the last step; the very first input vector is not necessarily
-    // the same operator we are handling.
-    if (CurOp.getOpcode() != Op && (CurStep != (NumExpectedSteps - 1)))
-      return SDValue();
-
-    // Check if it forms one step of the across vector reduction.
-    // E.g.,
-    //   %cur = add %1, %0
-    //   %shuffle = vector_shuffle %cur, <2, 3, u, u>
-    //   %pre = add %cur, %shuffle
-    if (Shuffle.getOperand(0) != CurOp)
-      return SDValue();
-
-    int NumMaskElts = 1 << CurStep;
-    ArrayRef<int> Mask = cast<ShuffleVectorSDNode>(Shuffle)->getMask();
-    // Check mask values in each step.
-    // We expect the shuffle mask in each step follows a specific pattern
-    // denoted here by the <M, U> form, where M is a sequence of integers
-    // starting from NumMaskElts, increasing by 1, and the number integers
-    // in M should be NumMaskElts. U is a sequence of UNDEFs and the number
-    // of undef in U should be NumVecElts - NumMaskElts.
-    // E.g., for <8 x i16>, mask values in each step should be :
-    //   step 0 : <1,u,u,u,u,u,u,u>
-    //   step 1 : <2,3,u,u,u,u,u,u>
-    //   step 2 : <4,5,6,7,u,u,u,u>
-    for (int i = 0; i < NumVecElts; ++i)
-      if ((i < NumMaskElts && Mask[i] != (NumMaskElts + i)) ||
-          (i >= NumMaskElts && !(Mask[i] < 0)))
-        return SDValue();
-
-    PreOp = CurOp;
-  }
-  unsigned Opcode;
-  bool IsIntrinsic = false;
-
-  switch (Op) {
-  default:
-    llvm_unreachable("Unexpected operator for across vector reduction");
-  case ISD::ADD:
-    Opcode = AArch64ISD::UADDV;
-    break;
-  case ISD::SMAX:
-    Opcode = AArch64ISD::SMAXV;
-    break;
-  case ISD::UMAX:
-    Opcode = AArch64ISD::UMAXV;
-    break;
-  case ISD::SMIN:
-    Opcode = AArch64ISD::SMINV;
-    break;
-  case ISD::UMIN:
-    Opcode = AArch64ISD::UMINV;
-    break;
-  case ISD::FMAXNUM:
-    Opcode = Intrinsic::aarch64_neon_fmaxnmv;
-    IsIntrinsic = true;
-    break;
-  case ISD::FMINNUM:
-    Opcode = Intrinsic::aarch64_neon_fminnmv;
-    IsIntrinsic = true;
-    break;
-  }
-  SDLoc DL(N);
-
-  return IsIntrinsic
-             ? DAG.getNode(ISD::INTRINSIC_WO_CHAIN, DL, N->getValueType(0),
-                           DAG.getConstant(Opcode, DL, MVT::i32), PreOp)
-             : DAG.getNode(
-                   ISD::EXTRACT_VECTOR_ELT, DL, N->getValueType(0),
-                   DAG.getNode(Opcode, DL, PreOp.getSimpleValueType(), PreOp),
-                   DAG.getConstant(0, DL, MVT::i64));
-}
-
-/// Target-specific DAG combine for the across vector min/max reductions.
-/// This function specifically handles the final clean-up step of the vector
-/// min/max reductions produced by the LoopVectorizer. It is the log2-shuffle
-/// pattern, which narrows down and finds the final min/max value from all
-/// elements of the vector.
-/// For example, for a <16 x i8> vector :
-///   svn0 = vector_shuffle %0, undef<8,9,10,11,12,13,14,15,u,u,u,u,u,u,u,u>
-///   %smax0 = smax %arr, svn0
-///   %svn1 = vector_shuffle %smax0, undef<4,5,6,7,u,u,u,u,u,u,u,u,u,u,u,u>
-///   %smax1 = smax %smax0, %svn1
-///   %svn2 = vector_shuffle %smax1, undef<2,3,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
-///   %smax2 = smax %smax1, svn2
-///   %svn3 = vector_shuffle %smax2, undef<1,u,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
-///   %sc = setcc %smax2, %svn3, gt
-///   %n0 = extract_vector_elt %sc, #0
-///   %n1 = extract_vector_elt %smax2, #0
-///   %n2 = extract_vector_elt $smax2, #1
-///   %result = select %n0, %n1, n2
-///     becomes :
-///   %1 = smaxv %0
-///   %result = extract_vector_elt %1, 0
-static SDValue
-performAcrossLaneMinMaxReductionCombine(SDNode *N, SelectionDAG &DAG,
-                                        const AArch64Subtarget *Subtarget) {
-  if (!Subtarget->hasNEON())
-    return SDValue();
-
-  SDValue N0 = N->getOperand(0);
-  SDValue IfTrue = N->getOperand(1);
-  SDValue IfFalse = N->getOperand(2);
-
-  // Check if the SELECT merges up the final result of the min/max
-  // from a vector.
-  if (N0.getOpcode() != ISD::EXTRACT_VECTOR_ELT ||
-      IfTrue.getOpcode() != ISD::EXTRACT_VECTOR_ELT ||
-      IfFalse.getOpcode() != ISD::EXTRACT_VECTOR_ELT)
-    return SDValue();
-
-  // Expect N0 is fed by SETCC.
-  SDValue SetCC = N0.getOperand(0);
-  EVT SetCCVT = SetCC.getValueType();
-  if (SetCC.getOpcode() != ISD::SETCC || !SetCCVT.isVector() ||
-      SetCCVT.getVectorElementType() != MVT::i1)
-    return SDValue();
-
-  SDValue VectorOp = SetCC.getOperand(0);
-  unsigned Op = VectorOp->getOpcode();
-  // Check if the input vector is fed by the operator we want to handle.
-  if (Op != ISD::SMAX && Op != ISD::UMAX && Op != ISD::SMIN &&
-      Op != ISD::UMIN && Op != ISD::FMAXNUM && Op != ISD::FMINNUM)
-    return SDValue();
-
-  EVT VTy = VectorOp.getValueType();
-  if (!VTy.isVector())
-    return SDValue();
-
-  if (VTy.getSizeInBits() < 64)
-    return SDValue();
-
-  EVT EltTy = VTy.getVectorElementType();
-  if (Op == ISD::FMAXNUM || Op == ISD::FMINNUM) {
-    if (EltTy != MVT::f32)
-      return SDValue();
-  } else {
-    if (EltTy != MVT::i32 && EltTy != MVT::i16 && EltTy != MVT::i8)
-      return SDValue();
-  }
-
-  // Check if extracting from the same vector.
-  // For example,
-  //   %sc = setcc %vector, %svn1, gt
-  //   %n0 = extract_vector_elt %sc, #0
-  //   %n1 = extract_vector_elt %vector, #0
-  //   %n2 = extract_vector_elt $vector, #1
-  if (!(VectorOp == IfTrue->getOperand(0) &&
-        VectorOp == IfFalse->getOperand(0)))
-    return SDValue();
-
-  // Check if the condition code is matched with the operator type.
-  ISD::CondCode CC = cast<CondCodeSDNode>(SetCC->getOperand(2))->get();
-  if ((Op == ISD::SMAX && CC != ISD::SETGT && CC != ISD::SETGE) ||
-      (Op == ISD::UMAX && CC != ISD::SETUGT && CC != ISD::SETUGE) ||
-      (Op == ISD::SMIN && CC != ISD::SETLT && CC != ISD::SETLE) ||
-      (Op == ISD::UMIN && CC != ISD::SETULT && CC != ISD::SETULE) ||
-      (Op == ISD::FMAXNUM && CC != ISD::SETOGT && CC != ISD::SETOGE &&
-       CC != ISD::SETUGT && CC != ISD::SETUGE && CC != ISD::SETGT &&
-       CC != ISD::SETGE) ||
-      (Op == ISD::FMINNUM && CC != ISD::SETOLT && CC != ISD::SETOLE &&
-       CC != ISD::SETULT && CC != ISD::SETULE && CC != ISD::SETLT &&
-       CC != ISD::SETLE))
-    return SDValue();
-
-  // Expect to check only lane 0 from the vector SETCC.
-  if (!isNullConstant(N0.getOperand(1)))
-    return SDValue();
-
-  // Expect to extract the true value from lane 0.
-  if (!isNullConstant(IfTrue.getOperand(1)))
-    return SDValue();
-
-  // Expect to extract the false value from lane 1.
-  if (!isOneConstant(IfFalse.getOperand(1)))
-    return SDValue();
-
-  return tryMatchAcrossLaneShuffleForReduction(N, SetCC, Op, DAG);
-}
-
-/// Target-specific DAG combine for the across vector add reduction.
-/// This function specifically handles the final clean-up step of the vector
-/// add reduction produced by the LoopVectorizer. It is the log2-shuffle
-/// pattern, which adds all elements of a vector together.
-/// For example, for a <4 x i32> vector :
-///   %1 = vector_shuffle %0, <2,3,u,u>
-///   %2 = add %0, %1
-///   %3 = vector_shuffle %2, <1,u,u,u>
-///   %4 = add %2, %3
-///   %result = extract_vector_elt %4, 0
-/// becomes :
-///   %0 = uaddv %0
-///   %result = extract_vector_elt %0, 0
-static SDValue
-performAcrossLaneAddReductionCombine(SDNode *N, SelectionDAG &DAG,
-                                     const AArch64Subtarget *Subtarget) {
-  if (!Subtarget->hasNEON())
-    return SDValue();
-  SDValue N0 = N->getOperand(0);
-  SDValue N1 = N->getOperand(1);
-
-  // Check if the input vector is fed by the ADD.
-  if (N0->getOpcode() != ISD::ADD)
-    return SDValue();
-
-  // The vector extract idx must constant zero because we only expect the final
-  // result of the reduction is placed in lane 0.
-  if (!isNullConstant(N1))
-    return SDValue();
-
-  EVT VTy = N0.getValueType();
-  if (!VTy.isVector())
-    return SDValue();
-
-  EVT EltTy = VTy.getVectorElementType();
-  if (EltTy != MVT::i32 && EltTy != MVT::i16 && EltTy != MVT::i8)
-    return SDValue();
-
-  if (VTy.getSizeInBits() < 64)
-    return SDValue();
-
-  return tryMatchAcrossLaneShuffleForReduction(N, N0, ISD::ADD, DAG);
-}
 
 /// Target-specific DAG combine function for NEON load/store intrinsics
 /// to merge base address updates.
@@ -10428,12 +10229,8 @@ SDValue AArch64TargetLowering::PerformDA
     return performBitcastCombine(N, DCI, DAG);
   case ISD::CONCAT_VECTORS:
     return performConcatVectorsCombine(N, DCI, DAG);
-  case ISD::SELECT: {
-    SDValue RV = performSelectCombine(N, DCI);
-    if (!RV.getNode())
-      RV = performAcrossLaneMinMaxReductionCombine(N, DAG, Subtarget);
-    return RV;
-  }
+  case ISD::SELECT:
+    return performSelectCombine(N, DCI);
   case ISD::VSELECT:
     return performVSelectCombine(N, DCI.DAG);
   case ISD::LOAD:
@@ -10455,8 +10252,6 @@ SDValue AArch64TargetLowering::PerformDA
     return performNVCASTCombine(N);
   case ISD::INSERT_VECTOR_ELT:
     return performPostLD1Combine(N, DCI, true);
-  case ISD::EXTRACT_VECTOR_ELT:
-    return performAcrossLaneAddReductionCombine(N, DAG, Subtarget);
   case ISD::INTRINSIC_VOID:
   case ISD::INTRINSIC_W_CHAIN:
     switch (cast<ConstantSDNode>(N->getOperand(1))->getZExtValue()) {
@@ -10676,6 +10471,14 @@ void AArch64TargetLowering::ReplaceNodeR
   case ISD::BITCAST:
     ReplaceBITCASTResults(N, Results, DAG);
     return;
+  case ISD::VECREDUCE_ADD:
+  case ISD::VECREDUCE_SMAX:
+  case ISD::VECREDUCE_SMIN:
+  case ISD::VECREDUCE_UMAX:
+  case ISD::VECREDUCE_UMIN:
+    Results.push_back(LowerVECREDUCE(SDValue(N, 0), DAG));
+    return;
+
   case AArch64ISD::SADDV:
     ReplaceReductionResults(N, Results, DAG, ISD::ADD, AArch64ISD::SADDV);
     return;

Modified: llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.h?rev=302678&r1=302677&r2=302678&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.h (original)
+++ llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.h Wed May 10 10:15:38 2017
@@ -568,6 +568,7 @@ private:
   SDValue LowerVectorOR(SDValue Op, SelectionDAG &DAG) const;
   SDValue LowerCONCAT_VECTORS(SDValue Op, SelectionDAG &DAG) const;
   SDValue LowerFSINCOS(SDValue Op, SelectionDAG &DAG) const;
+  SDValue LowerVECREDUCE(SDValue Op, SelectionDAG &DAG) const;
 
   SDValue BuildSDIVPow2(SDNode *N, const APInt &Divisor, SelectionDAG &DAG,
                         std::vector<SDNode *> *Created) const override;

Modified: llvm/trunk/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AArch64/AArch64TargetTransformInfo.cpp?rev=302678&r1=302677&r2=302678&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AArch64/AArch64TargetTransformInfo.cpp (original)
+++ llvm/trunk/lib/Target/AArch64/AArch64TargetTransformInfo.cpp Wed May 10 10:15:38 2017
@@ -769,3 +769,26 @@ unsigned AArch64TTIImpl::getMinPrefetchS
 unsigned AArch64TTIImpl::getMaxPrefetchIterationsAhead() {
   return ST->getMaxPrefetchIterationsAhead();
 }
+
+bool AArch64TTIImpl::useReductionIntrinsic(unsigned Opcode, Type *Ty,
+                                           TTI::ReductionFlags Flags) const {
+  assert(isa<VectorType>(Ty) && "Expected Ty to be a vector type");
+  switch (Opcode) {
+  case Instruction::FAdd:
+  case Instruction::FMul:
+  case Instruction::And:
+  case Instruction::Or:
+  case Instruction::Xor:
+  case Instruction::Mul:
+    return false;
+  case Instruction::Add:
+    return Ty->getScalarSizeInBits() * Ty->getVectorNumElements() >= 128;
+  case Instruction::ICmp:
+    return Ty->getScalarSizeInBits() < 64;
+  case Instruction::FCmp:
+    return Flags.NoNaN;
+  default:
+    llvm_unreachable("Unhandled reduction opcode");
+  }
+  return false;
+}

Modified: llvm/trunk/lib/Target/AArch64/AArch64TargetTransformInfo.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AArch64/AArch64TargetTransformInfo.h?rev=302678&r1=302677&r2=302678&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AArch64/AArch64TargetTransformInfo.h (original)
+++ llvm/trunk/lib/Target/AArch64/AArch64TargetTransformInfo.h Wed May 10 10:15:38 2017
@@ -141,6 +141,9 @@ public:
   bool shouldExpandReduction(const IntrinsicInst *II) const {
     return false;
   }
+
+  bool useReductionIntrinsic(unsigned Opcode, Type *Ty,
+                             TTI::ReductionFlags Flags) const;
   /// @}
 };
 

Modified: llvm/trunk/test/CodeGen/AArch64/aarch64-addv.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/aarch64-addv.ll?rev=302678&r1=302677&r2=302678&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/AArch64/aarch64-addv.ll (original)
+++ llvm/trunk/test/CodeGen/AArch64/aarch64-addv.ll Wed May 10 10:15:38 2017
@@ -1,18 +1,16 @@
 ; RUN: llc < %s -mtriple=aarch64-eabi -aarch64-neon-syntax=generic | FileCheck %s
 
+; Function Attrs: nounwind readnone
+declare i64 @llvm.experimental.vector.reduce.add.i64.v2i64(<2 x i64>)
+declare i32 @llvm.experimental.vector.reduce.add.i32.v4i32(<4 x i32>)
+declare i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16>)
+declare i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8>)
+
 define i8 @add_B(<16 x i8>* %arr)  {
 ; CHECK-LABEL: add_B
 ; CHECK: addv {{b[0-9]+}}, {{v[0-9]+}}.16b
   %bin.rdx = load <16 x i8>, <16 x i8>* %arr
-  %rdx.shuf0 = shufflevector <16 x i8> %bin.rdx, <16 x i8> undef, <16 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 undef, i32 undef,i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %bin.rdx0 = add <16 x i8> %bin.rdx, %rdx.shuf0
-  %rdx.shuf = shufflevector <16 x i8> %bin.rdx0, <16 x i8> undef, <16 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef,i32 undef, i32 undef, i32 undef, i32 undef,i32 undef, i32 undef, i32 undef, i32 undef,i32 undef, i32 undef >
-  %bin.rdx11 = add <16 x i8> %bin.rdx0, %rdx.shuf
-  %rdx.shuf12 = shufflevector <16 x i8> %bin.rdx11, <16 x i8> undef, <16 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef,i32 undef, i32 undef, i32 undef, i32 undef,i32 undef, i32 undef>
-  %bin.rdx13 = add <16 x i8> %bin.rdx11, %rdx.shuf12
-  %rdx.shuf13 = shufflevector <16 x i8> %bin.rdx13, <16 x i8> undef, <16 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef,i32 undef, i32 undef, i32 undef, i32 undef,i32 undef, i32 undef>
-  %bin.rdx14 = add <16 x i8> %bin.rdx13, %rdx.shuf13
-  %r = extractelement <16 x i8> %bin.rdx14, i32 0
+  %r = call i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8> %bin.rdx)
   ret i8 %r
 }
 
@@ -20,13 +18,7 @@ define i16 @add_H(<8 x i16>* %arr)  {
 ; CHECK-LABEL: add_H
 ; CHECK: addv {{h[0-9]+}}, {{v[0-9]+}}.8h
   %bin.rdx = load <8 x i16>, <8 x i16>* %arr
-  %rdx.shuf = shufflevector <8 x i16> %bin.rdx, <8 x i16> undef, <8 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef,i32 undef, i32 undef>
-  %bin.rdx11 = add <8 x i16> %bin.rdx, %rdx.shuf
-  %rdx.shuf12 = shufflevector <8 x i16> %bin.rdx11, <8 x i16> undef, <8 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %bin.rdx13 = add <8 x i16> %bin.rdx11, %rdx.shuf12
-  %rdx.shuf13 = shufflevector <8 x i16> %bin.rdx13, <8 x i16> undef, <8 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %bin.rdx14 = add <8 x i16> %bin.rdx13, %rdx.shuf13
-  %r = extractelement <8 x i16> %bin.rdx14, i32 0
+  %r = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16> %bin.rdx)
   ret i16 %r
 }
 
@@ -34,11 +26,7 @@ define i32 @add_S( <4 x i32>* %arr)  {
 ; CHECK-LABEL: add_S
 ; CHECK: addv {{s[0-9]+}}, {{v[0-9]+}}.4s
   %bin.rdx = load <4 x i32>, <4 x i32>* %arr
-  %rdx.shuf = shufflevector <4 x i32> %bin.rdx, <4 x i32> undef, <4 x i32> <i32 2, i32 3, i32 undef, i32 undef>
-  %bin.rdx11 = add <4 x i32> %bin.rdx, %rdx.shuf
-  %rdx.shuf12 = shufflevector <4 x i32> %bin.rdx11, <4 x i32> undef, <4 x i32> <i32 1, i32 undef, i32 undef, i32 undef>
-  %bin.rdx13 = add <4 x i32> %bin.rdx11, %rdx.shuf12
-  %r = extractelement <4 x i32> %bin.rdx13, i32 0
+  %r = call i32 @llvm.experimental.vector.reduce.add.i32.v4i32(<4 x i32> %bin.rdx)
   ret i32 %r
 }
 
@@ -46,12 +34,12 @@ define i64 @add_D(<2 x i64>* %arr)  {
 ; CHECK-LABEL: add_D
 ; CHECK-NOT: addv
   %bin.rdx = load <2 x i64>, <2 x i64>* %arr
-  %rdx.shuf0 = shufflevector <2 x i64> %bin.rdx, <2 x i64> undef, <2 x i32> <i32 1, i32 undef>
-  %bin.rdx0 = add <2 x i64> %bin.rdx, %rdx.shuf0
-  %r = extractelement <2 x i64> %bin.rdx0, i32 0
+  %r = call i64 @llvm.experimental.vector.reduce.add.i64.v2i64(<2 x i64> %bin.rdx)
   ret i64 %r
 }
 
+declare i32 @llvm.experimental.vector.reduce.add.i32.v8i32(<8 x i32>)
+
 define i32 @oversized_ADDV_256(i8* noalias nocapture readonly %arg1, i8* noalias nocapture readonly %arg2) {
 ; CHECK-LABEL: oversized_ADDV_256
 ; CHECK: addv {{s[0-9]+}}, {{v[0-9]+}}.4s
@@ -66,33 +54,16 @@ entry:
   %7 = icmp slt <8 x i32> %6, zeroinitializer
   %8 = sub nsw <8 x i32> zeroinitializer, %6
   %9 = select <8 x i1> %7, <8 x i32> %8, <8 x i32> %6
-  %rdx.shuf = shufflevector <8 x i32> %9, <8 x i32> undef, <8 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef>
-  %bin.rdx = add <8 x i32> %9, %rdx.shuf
-  %rdx.shuf1 = shufflevector <8 x i32> %bin.rdx, <8 x i32> undef, <8 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %bin.rdx2 = add <8 x i32> %bin.rdx, %rdx.shuf1
-  %rdx.shuf3 = shufflevector <8 x i32> %bin.rdx2, <8 x i32> undef, <8 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %bin.rdx4 = add <8 x i32> %bin.rdx2, %rdx.shuf3
-  %10 = extractelement <8 x i32> %bin.rdx4, i32 0
-  ret i32 %10
+  %r = call i32 @llvm.experimental.vector.reduce.add.i32.v8i32(<8 x i32> %9)
+  ret i32 %r
 }
 
+declare i32 @llvm.experimental.vector.reduce.add.i32.v16i32(<16 x i32>)
+
 define i32 @oversized_ADDV_512(<16 x i32>* %arr)  {
 ; CHECK-LABEL: oversized_ADDV_512
 ; CHECK: addv {{s[0-9]+}}, {{v[0-9]+}}.4s
   %bin.rdx = load <16 x i32>, <16 x i32>* %arr
-
-  %rdx.shuf0 = shufflevector <16 x i32> %bin.rdx, <16 x i32> undef, <16 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 undef, i32 undef,i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %bin.rdx0 = add <16 x i32> %bin.rdx, %rdx.shuf0
-
-  %rdx.shuf = shufflevector <16 x i32> %bin.rdx0, <16 x i32> undef, <16 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef,i32 undef, i32 undef, i32 undef, i32 undef,i32 undef, i32 undef, i32 undef, i32 undef,i32 undef, i32 undef >
-  %bin.rdx11 = add <16 x i32> %bin.rdx0, %rdx.shuf
-
-  %rdx.shuf12 = shufflevector <16 x i32> %bin.rdx11, <16 x i32> undef, <16 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef,i32 undef, i32 undef, i32 undef, i32 undef,i32 undef, i32 undef>
-  %bin.rdx13 = add <16 x i32> %bin.rdx11, %rdx.shuf12
-
-  %rdx.shuf13 = shufflevector <16 x i32> %bin.rdx13, <16 x i32> undef, <16 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef,i32 undef, i32 undef, i32 undef, i32 undef,i32 undef, i32 undef>
-  %bin.rdx14 = add <16 x i32> %bin.rdx13, %rdx.shuf13
-
-  %r = extractelement <16 x i32> %bin.rdx14, i32 0
+  %r = call i32 @llvm.experimental.vector.reduce.add.i32.v16i32(<16 x i32> %bin.rdx)
   ret i32 %r
 }

Modified: llvm/trunk/test/CodeGen/AArch64/aarch64-minmaxv.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/aarch64-minmaxv.ll?rev=302678&r1=302677&r2=302678&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/AArch64/aarch64-minmaxv.ll (original)
+++ llvm/trunk/test/CodeGen/AArch64/aarch64-minmaxv.ll Wed May 10 10:15:38 2017
@@ -2,344 +2,148 @@
 
 target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128"
 
+declare i8 @llvm.experimental.vector.reduce.smax.i8.v16i8(<16 x i8>)
+declare i16 @llvm.experimental.vector.reduce.smax.i16.v8i16(<8 x i16>)
+declare i32 @llvm.experimental.vector.reduce.smax.i32.v4i32(<4 x i32>)
+declare i8 @llvm.experimental.vector.reduce.umax.i8.v16i8(<16 x i8>)
+declare i16 @llvm.experimental.vector.reduce.umax.i16.v8i16(<8 x i16>)
+declare i32 @llvm.experimental.vector.reduce.umax.i32.v4i32(<4 x i32>)
+
+declare i8 @llvm.experimental.vector.reduce.smin.i8.v16i8(<16 x i8>)
+declare i16 @llvm.experimental.vector.reduce.smin.i16.v8i16(<8 x i16>)
+declare i32 @llvm.experimental.vector.reduce.smin.i32.v4i32(<4 x i32>)
+declare i8 @llvm.experimental.vector.reduce.umin.i8.v16i8(<16 x i8>)
+declare i16 @llvm.experimental.vector.reduce.umin.i16.v8i16(<8 x i16>)
+declare i32 @llvm.experimental.vector.reduce.umin.i32.v4i32(<4 x i32>)
+
+declare float @llvm.experimental.vector.reduce.fmax.f32.v4f32(<4 x float>)
+declare float @llvm.experimental.vector.reduce.fmin.f32.v4f32(<4 x float>)
+
 ; CHECK-LABEL: smax_B
 ; CHECK: smaxv {{b[0-9]+}}, {{v[0-9]+}}.16b
 define i8 @smax_B(<16 x i8>* nocapture readonly %arr)  {
   %arr.load = load <16 x i8>, <16 x i8>* %arr
-  %rdx.shuf = shufflevector <16 x i8> %arr.load, <16 x i8> undef, <16 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp22 = icmp sgt <16 x i8> %arr.load, %rdx.shuf
-  %rdx.minmax.select23 = select <16 x i1> %rdx.minmax.cmp22, <16 x i8> %arr.load, <16 x i8> %rdx.shuf
-  %rdx.shuf24 = shufflevector <16 x i8> %rdx.minmax.select23, <16 x i8> undef, <16 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp25 = icmp sgt <16 x i8> %rdx.minmax.select23, %rdx.shuf24
-  %rdx.minmax.select26 = select <16 x i1> %rdx.minmax.cmp25, <16 x i8> %rdx.minmax.select23, <16 x i8> %rdx.shuf24
-  %rdx.shuf27 = shufflevector <16 x i8> %rdx.minmax.select26, <16 x i8> undef, <16 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp28 = icmp sgt <16 x i8> %rdx.minmax.select26, %rdx.shuf27
-  %rdx.minmax.select29 = select <16 x i1> %rdx.minmax.cmp28, <16 x i8> %rdx.minmax.select26, <16 x i8> %rdx.shuf27
-  %rdx.shuf30 = shufflevector <16 x i8> %rdx.minmax.select29, <16 x i8> undef, <16 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp31 = icmp sgt <16 x i8> %rdx.minmax.select29, %rdx.shuf30
-  %rdx.minmax.cmp31.elt = extractelement <16 x i1> %rdx.minmax.cmp31, i32 0
-  %rdx.minmax.select29.elt = extractelement <16 x i8> %rdx.minmax.select29, i32 0
-  %rdx.shuf30.elt = extractelement <16 x i8> %rdx.minmax.select29, i32 1
-  %r = select i1 %rdx.minmax.cmp31.elt, i8 %rdx.minmax.select29.elt, i8 %rdx.shuf30.elt
+  %r = call i8 @llvm.experimental.vector.reduce.smax.i8.v16i8(<16 x i8> %arr.load)
   ret i8 %r
 }
 
 ; CHECK-LABEL: smax_H
 ; CHECK: smaxv {{h[0-9]+}}, {{v[0-9]+}}.8h
 define i16 @smax_H(<8 x i16>* nocapture readonly %arr) {
-  %rdx.minmax.select = load <8 x i16>, <8 x i16>* %arr
-  %rdx.shuf = shufflevector <8 x i16> %rdx.minmax.select, <8 x i16> undef, <8 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp23 = icmp sgt <8 x i16> %rdx.minmax.select, %rdx.shuf
-  %rdx.minmax.select24 = select <8 x i1> %rdx.minmax.cmp23, <8 x i16> %rdx.minmax.select, <8 x i16> %rdx.shuf
-  %rdx.shuf25 = shufflevector <8 x i16> %rdx.minmax.select24, <8 x i16> undef, <8 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp26 = icmp sgt <8 x i16> %rdx.minmax.select24, %rdx.shuf25
-  %rdx.minmax.select27 = select <8 x i1> %rdx.minmax.cmp26, <8 x i16> %rdx.minmax.select24, <8 x i16> %rdx.shuf25
-  %rdx.shuf28 = shufflevector <8 x i16> %rdx.minmax.select27, <8 x i16> undef, <8 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp29 = icmp sgt <8 x i16> %rdx.minmax.select27, %rdx.shuf28
-  %rdx.minmax.cmp29.elt = extractelement <8 x i1> %rdx.minmax.cmp29, i32 0
-  %rdx.minmax.select27.elt = extractelement <8 x i16> %rdx.minmax.select27, i32 0
-  %rdx.shuf28.elt = extractelement <8 x i16> %rdx.minmax.select27, i32 1
-  %r = select i1 %rdx.minmax.cmp29.elt, i16 %rdx.minmax.select27.elt, i16 %rdx.shuf28.elt
+  %arr.load = load <8 x i16>, <8 x i16>* %arr
+  %r = call i16 @llvm.experimental.vector.reduce.smax.i16.v8i16(<8 x i16> %arr.load)
   ret i16 %r
 }
 
 ; CHECK-LABEL: smax_S
 ; CHECK: smaxv {{s[0-9]+}}, {{v[0-9]+}}.4s
 define i32 @smax_S(<4 x i32> * nocapture readonly %arr)  {
-  %rdx.minmax.select = load <4 x i32>, <4 x i32>* %arr
-  %rdx.shuf = shufflevector <4 x i32> %rdx.minmax.select, <4 x i32> undef, <4 x i32> <i32 2, i32 3, i32 undef, i32 undef>
-  %rdx.minmax.cmp18 = icmp sgt <4 x i32> %rdx.minmax.select, %rdx.shuf
-  %rdx.minmax.select19 = select <4 x i1> %rdx.minmax.cmp18, <4 x i32> %rdx.minmax.select, <4 x i32> %rdx.shuf
-  %rdx.shuf20 = shufflevector <4 x i32> %rdx.minmax.select19, <4 x i32> undef, <4 x i32> <i32 1, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp21 = icmp sgt <4 x i32> %rdx.minmax.select19, %rdx.shuf20
-  %rdx.minmax.cmp21.elt = extractelement <4 x i1> %rdx.minmax.cmp21, i32 0
-  %rdx.minmax.select19.elt = extractelement <4 x i32> %rdx.minmax.select19, i32 0
-  %rdx.shuf20.elt = extractelement <4 x i32> %rdx.minmax.select19, i32 1
-  %r = select i1 %rdx.minmax.cmp21.elt, i32 %rdx.minmax.select19.elt, i32 %rdx.shuf20.elt
+  %arr.load = load <4 x i32>, <4 x i32>* %arr
+  %r = call i32 @llvm.experimental.vector.reduce.smax.i32.v4i32(<4 x i32> %arr.load)
   ret i32 %r
 }
 
-; CHECK-LABEL: smax_D
-; CHECK-NOT: smaxv
-define i64 @smax_D(<2 x i64>* nocapture readonly %arr) {
-  %rdx.minmax.select = load <2 x i64>, <2 x i64>* %arr
-  %rdx.shuf = shufflevector <2 x i64> %rdx.minmax.select, <2 x i64> undef, <2 x i32> <i32 1, i32 undef>
-  %rdx.minmax.cmp18 = icmp sgt <2 x i64> %rdx.minmax.select, %rdx.shuf
-  %rdx.minmax.cmp18.elt = extractelement <2 x i1> %rdx.minmax.cmp18, i32 0
-  %rdx.minmax.select.elt = extractelement <2 x i64> %rdx.minmax.select, i32 0
-  %rdx.shuf.elt = extractelement <2 x i64> %rdx.minmax.select, i32 1
-  %r = select i1 %rdx.minmax.cmp18.elt, i64 %rdx.minmax.select.elt, i64 %rdx.shuf.elt
-  ret i64 %r
-}
-
-
 ; CHECK-LABEL: umax_B
 ; CHECK: umaxv {{b[0-9]+}}, {{v[0-9]+}}.16b
 define i8 @umax_B(<16 x i8>* nocapture readonly %arr)  {
-  %rdx.minmax.select = load <16 x i8>, <16 x i8>* %arr
-  %rdx.shuf = shufflevector <16 x i8> %rdx.minmax.select, <16 x i8> undef, <16 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp22 = icmp ugt <16 x i8> %rdx.minmax.select, %rdx.shuf
-  %rdx.minmax.select23 = select <16 x i1> %rdx.minmax.cmp22, <16 x i8> %rdx.minmax.select, <16 x i8> %rdx.shuf
-  %rdx.shuf24 = shufflevector <16 x i8> %rdx.minmax.select23, <16 x i8> undef, <16 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp25 = icmp ugt <16 x i8> %rdx.minmax.select23, %rdx.shuf24
-  %rdx.minmax.select26 = select <16 x i1> %rdx.minmax.cmp25, <16 x i8> %rdx.minmax.select23, <16 x i8> %rdx.shuf24
-  %rdx.shuf27 = shufflevector <16 x i8> %rdx.minmax.select26, <16 x i8> undef, <16 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp28 = icmp ugt <16 x i8> %rdx.minmax.select26, %rdx.shuf27
-  %rdx.minmax.select29 = select <16 x i1> %rdx.minmax.cmp28, <16 x i8> %rdx.minmax.select26, <16 x i8> %rdx.shuf27
-  %rdx.shuf30 = shufflevector <16 x i8> %rdx.minmax.select29, <16 x i8> undef, <16 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp31 = icmp ugt <16 x i8> %rdx.minmax.select29, %rdx.shuf30
-  %rdx.minmax.cmp31.elt = extractelement <16 x i1> %rdx.minmax.cmp31, i32 0
-  %rdx.minmax.select29.elt = extractelement <16 x i8> %rdx.minmax.select29, i32 0
-  %rdx.shuf30.elt = extractelement <16 x i8> %rdx.minmax.select29, i32 1
-  %r = select i1 %rdx.minmax.cmp31.elt, i8 %rdx.minmax.select29.elt, i8 %rdx.shuf30.elt
+  %arr.load = load <16 x i8>, <16 x i8>* %arr
+  %r = call i8 @llvm.experimental.vector.reduce.umax.i8.v16i8(<16 x i8> %arr.load)
   ret i8 %r
 }
 
 ; CHECK-LABEL: umax_H
 ; CHECK: umaxv {{h[0-9]+}}, {{v[0-9]+}}.8h
 define i16 @umax_H(<8 x i16>* nocapture readonly %arr)  {
-  %rdx.minmax.select = load <8 x i16>, <8 x i16>* %arr
-  %rdx.shuf = shufflevector <8 x i16> %rdx.minmax.select, <8 x i16> undef, <8 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp23 = icmp ugt <8 x i16> %rdx.minmax.select, %rdx.shuf
-  %rdx.minmax.select24 = select <8 x i1> %rdx.minmax.cmp23, <8 x i16> %rdx.minmax.select, <8 x i16> %rdx.shuf
-  %rdx.shuf25 = shufflevector <8 x i16> %rdx.minmax.select24, <8 x i16> undef, <8 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp26 = icmp ugt <8 x i16> %rdx.minmax.select24, %rdx.shuf25
-  %rdx.minmax.select27 = select <8 x i1> %rdx.minmax.cmp26, <8 x i16> %rdx.minmax.select24, <8 x i16> %rdx.shuf25
-  %rdx.shuf28 = shufflevector <8 x i16> %rdx.minmax.select27, <8 x i16> undef, <8 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp29 = icmp ugt <8 x i16> %rdx.minmax.select27, %rdx.shuf28
-  %rdx.minmax.cmp29.elt = extractelement <8 x i1> %rdx.minmax.cmp29, i32 0
-  %rdx.minmax.select27.elt = extractelement <8 x i16> %rdx.minmax.select27, i32 0
-  %rdx.shuf28.elt = extractelement <8 x i16> %rdx.minmax.select27, i32 1
-  %r = select i1 %rdx.minmax.cmp29.elt, i16 %rdx.minmax.select27.elt, i16 %rdx.shuf28.elt
+  %arr.load = load <8 x i16>, <8 x i16>* %arr
+  %r = call i16 @llvm.experimental.vector.reduce.umax.i16.v8i16(<8 x i16> %arr.load)
   ret i16 %r
 }
 
 ; CHECK-LABEL: umax_S
 ; CHECK: umaxv {{s[0-9]+}}, {{v[0-9]+}}.4s
 define i32 @umax_S(<4 x i32>* nocapture readonly %arr) {
-  %rdx.minmax.select  = load <4 x i32>, <4 x i32>* %arr
-  %rdx.shuf = shufflevector <4 x i32> %rdx.minmax.select, <4 x i32> undef, <4 x i32> <i32 2, i32 3, i32 undef, i32 undef>
-  %rdx.minmax.cmp18 = icmp ugt <4 x i32> %rdx.minmax.select, %rdx.shuf
-  %rdx.minmax.select19 = select <4 x i1> %rdx.minmax.cmp18, <4 x i32> %rdx.minmax.select, <4 x i32> %rdx.shuf
-  %rdx.shuf20 = shufflevector <4 x i32> %rdx.minmax.select19, <4 x i32> undef, <4 x i32> <i32 1, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp21 = icmp ugt <4 x i32> %rdx.minmax.select19, %rdx.shuf20
-  %rdx.minmax.cmp21.elt = extractelement <4 x i1> %rdx.minmax.cmp21, i32 0
-  %rdx.minmax.select19.elt = extractelement <4 x i32> %rdx.minmax.select19, i32 0
-  %rdx.shuf20.elt = extractelement <4 x i32> %rdx.minmax.select19, i32 1
-  %r = select i1 %rdx.minmax.cmp21.elt, i32 %rdx.minmax.select19.elt, i32 %rdx.shuf20.elt
+  %arr.load = load <4 x i32>, <4 x i32>* %arr
+  %r = call i32 @llvm.experimental.vector.reduce.umax.i32.v4i32(<4 x i32> %arr.load)
   ret i32 %r
 }
 
-; CHECK-LABEL: umax_D
-; CHECK-NOT: umaxv
-define i64 @umax_D(<2 x i64>* nocapture readonly %arr)  {
-  %rdx.minmax.select = load <2 x i64>, <2 x i64>* %arr
-  %rdx.shuf = shufflevector <2 x i64> %rdx.minmax.select, <2 x i64> undef, <2 x i32> <i32 1, i32 undef>
-  %rdx.minmax.cmp18 = icmp ugt <2 x i64> %rdx.minmax.select, %rdx.shuf
-  %rdx.minmax.cmp18.elt = extractelement <2 x i1> %rdx.minmax.cmp18, i32 0
-  %rdx.minmax.select.elt = extractelement <2 x i64> %rdx.minmax.select, i32 0
-  %rdx.shuf.elt = extractelement <2 x i64> %rdx.minmax.select, i32 1
-  %r = select i1 %rdx.minmax.cmp18.elt, i64 %rdx.minmax.select.elt, i64 %rdx.shuf.elt
-  ret i64 %r
-}
-
-
 ; CHECK-LABEL: smin_B
 ; CHECK: sminv {{b[0-9]+}}, {{v[0-9]+}}.16b
 define i8 @smin_B(<16 x i8>* nocapture readonly %arr) {
-  %rdx.minmax.select = load <16 x i8>, <16 x i8>* %arr
-  %rdx.shuf = shufflevector <16 x i8> %rdx.minmax.select, <16 x i8> undef, <16 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp22 = icmp slt <16 x i8> %rdx.minmax.select, %rdx.shuf
-  %rdx.minmax.select23 = select <16 x i1> %rdx.minmax.cmp22, <16 x i8> %rdx.minmax.select, <16 x i8> %rdx.shuf
-  %rdx.shuf24 = shufflevector <16 x i8> %rdx.minmax.select23, <16 x i8> undef, <16 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp25 = icmp slt <16 x i8> %rdx.minmax.select23, %rdx.shuf24
-  %rdx.minmax.select26 = select <16 x i1> %rdx.minmax.cmp25, <16 x i8> %rdx.minmax.select23, <16 x i8> %rdx.shuf24
-  %rdx.shuf27 = shufflevector <16 x i8> %rdx.minmax.select26, <16 x i8> undef, <16 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp28 = icmp slt <16 x i8> %rdx.minmax.select26, %rdx.shuf27
-  %rdx.minmax.select29 = select <16 x i1> %rdx.minmax.cmp28, <16 x i8> %rdx.minmax.select26, <16 x i8> %rdx.shuf27
-  %rdx.shuf30 = shufflevector <16 x i8> %rdx.minmax.select29, <16 x i8> undef, <16 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp31 = icmp slt <16 x i8> %rdx.minmax.select29, %rdx.shuf30
-  %rdx.minmax.cmp31.elt = extractelement <16 x i1> %rdx.minmax.cmp31, i32 0
-  %rdx.minmax.select29.elt = extractelement <16 x i8> %rdx.minmax.select29, i32 0
-  %rdx.shuf30.elt = extractelement <16 x i8> %rdx.minmax.select29, i32 1
-  %r = select i1 %rdx.minmax.cmp31.elt, i8 %rdx.minmax.select29.elt, i8 %rdx.shuf30.elt
+  %arr.load = load <16 x i8>, <16 x i8>* %arr
+  %r = call i8 @llvm.experimental.vector.reduce.smin.i8.v16i8(<16 x i8> %arr.load)
   ret i8 %r
 }
 
 ; CHECK-LABEL: smin_H
 ; CHECK: sminv {{h[0-9]+}}, {{v[0-9]+}}.8h
 define i16 @smin_H(<8 x i16>* nocapture readonly %arr) {
-  %rdx.minmax.select = load <8 x i16>, <8 x i16>* %arr
-  %rdx.shuf = shufflevector <8 x i16> %rdx.minmax.select, <8 x i16> undef, <8 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp23 = icmp slt <8 x i16> %rdx.minmax.select, %rdx.shuf
-  %rdx.minmax.select24 = select <8 x i1> %rdx.minmax.cmp23, <8 x i16> %rdx.minmax.select, <8 x i16> %rdx.shuf
-  %rdx.shuf25 = shufflevector <8 x i16> %rdx.minmax.select24, <8 x i16> undef, <8 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp26 = icmp slt <8 x i16> %rdx.minmax.select24, %rdx.shuf25
-  %rdx.minmax.select27 = select <8 x i1> %rdx.minmax.cmp26, <8 x i16> %rdx.minmax.select24, <8 x i16> %rdx.shuf25
-  %rdx.shuf28 = shufflevector <8 x i16> %rdx.minmax.select27, <8 x i16> undef, <8 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp29 = icmp slt <8 x i16> %rdx.minmax.select27, %rdx.shuf28
-  %rdx.minmax.cmp29.elt = extractelement <8 x i1> %rdx.minmax.cmp29, i32 0
-  %rdx.minmax.select27.elt = extractelement <8 x i16> %rdx.minmax.select27, i32 0
-  %rdx.shuf28.elt = extractelement <8 x i16> %rdx.minmax.select27, i32 1
-  %r = select i1 %rdx.minmax.cmp29.elt, i16 %rdx.minmax.select27.elt, i16 %rdx.shuf28.elt
+  %arr.load = load <8 x i16>, <8 x i16>* %arr
+  %r = call i16 @llvm.experimental.vector.reduce.smin.i16.v8i16(<8 x i16> %arr.load)
   ret i16 %r
 }
 
 ; CHECK-LABEL: smin_S
 ; CHECK: sminv {{s[0-9]+}}, {{v[0-9]+}}.4s
 define i32 @smin_S(<4 x i32>* nocapture readonly %arr) {
-  %rdx.minmax.select = load <4 x i32>, <4 x i32>* %arr
-  %rdx.shuf = shufflevector <4 x i32> %rdx.minmax.select, <4 x i32> undef, <4 x i32> <i32 2, i32 3, i32 undef, i32 undef>
-  %rdx.minmax.cmp18 = icmp slt <4 x i32> %rdx.minmax.select, %rdx.shuf
-  %rdx.minmax.select19 = select <4 x i1> %rdx.minmax.cmp18, <4 x i32> %rdx.minmax.select, <4 x i32> %rdx.shuf
-  %rdx.shuf20 = shufflevector <4 x i32> %rdx.minmax.select19, <4 x i32> undef, <4 x i32> <i32 1, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp21 = icmp slt <4 x i32> %rdx.minmax.select19, %rdx.shuf20
-  %rdx.minmax.cmp21.elt = extractelement <4 x i1> %rdx.minmax.cmp21, i32 0
-  %rdx.minmax.select19.elt = extractelement <4 x i32> %rdx.minmax.select19, i32 0
-  %rdx.shuf20.elt = extractelement <4 x i32> %rdx.minmax.select19, i32 1
-  %r = select i1 %rdx.minmax.cmp21.elt, i32 %rdx.minmax.select19.elt, i32 %rdx.shuf20.elt
+  %arr.load = load <4 x i32>, <4 x i32>* %arr
+  %r = call i32 @llvm.experimental.vector.reduce.smin.i32.v4i32(<4 x i32> %arr.load)
   ret i32 %r
 }
 
-; CHECK-LABEL: smin_D
-; CHECK-NOT: sminv
-define i64 @smin_D(<2 x i64>* nocapture readonly %arr) {
-  %rdx.minmax.select = load <2 x i64>, <2 x i64>* %arr
-  %rdx.shuf = shufflevector <2 x i64> %rdx.minmax.select, <2 x i64> undef, <2 x i32> <i32 1, i32 undef>
-  %rdx.minmax.cmp18 = icmp slt <2 x i64> %rdx.minmax.select, %rdx.shuf
-  %rdx.minmax.cmp18.elt = extractelement <2 x i1> %rdx.minmax.cmp18, i32 0
-  %rdx.minmax.select.elt = extractelement <2 x i64> %rdx.minmax.select, i32 0
-  %rdx.shuf.elt = extractelement <2 x i64> %rdx.minmax.select, i32 1
-  %r = select i1 %rdx.minmax.cmp18.elt, i64 %rdx.minmax.select.elt, i64 %rdx.shuf.elt
-  ret i64 %r
-}
-
-
 ; CHECK-LABEL: umin_B
 ; CHECK: uminv {{b[0-9]+}}, {{v[0-9]+}}.16b
 define i8 @umin_B(<16 x i8>* nocapture readonly %arr)  {
-  %rdx.minmax.select = load <16 x i8>, <16 x i8>* %arr
-  %rdx.shuf = shufflevector <16 x i8> %rdx.minmax.select, <16 x i8> undef, <16 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp22 = icmp ult <16 x i8> %rdx.minmax.select, %rdx.shuf
-  %rdx.minmax.select23 = select <16 x i1> %rdx.minmax.cmp22, <16 x i8> %rdx.minmax.select, <16 x i8> %rdx.shuf
-  %rdx.shuf24 = shufflevector <16 x i8> %rdx.minmax.select23, <16 x i8> undef, <16 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp25 = icmp ult <16 x i8> %rdx.minmax.select23, %rdx.shuf24
-  %rdx.minmax.select26 = select <16 x i1> %rdx.minmax.cmp25, <16 x i8> %rdx.minmax.select23, <16 x i8> %rdx.shuf24
-  %rdx.shuf27 = shufflevector <16 x i8> %rdx.minmax.select26, <16 x i8> undef, <16 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp28 = icmp ult <16 x i8> %rdx.minmax.select26, %rdx.shuf27
-  %rdx.minmax.select29 = select <16 x i1> %rdx.minmax.cmp28, <16 x i8> %rdx.minmax.select26, <16 x i8> %rdx.shuf27
-  %rdx.shuf30 = shufflevector <16 x i8> %rdx.minmax.select29, <16 x i8> undef, <16 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp31 = icmp ult <16 x i8> %rdx.minmax.select29, %rdx.shuf30
-  %rdx.minmax.cmp31.elt = extractelement <16 x i1> %rdx.minmax.cmp31, i32 0
-  %rdx.minmax.select29.elt = extractelement <16 x i8> %rdx.minmax.select29, i32 0
-  %rdx.shuf30.elt = extractelement <16 x i8> %rdx.minmax.select29, i32 1
-  %r = select i1 %rdx.minmax.cmp31.elt, i8 %rdx.minmax.select29.elt, i8 %rdx.shuf30.elt
+  %arr.load = load <16 x i8>, <16 x i8>* %arr
+  %r = call i8 @llvm.experimental.vector.reduce.umin.i8.v16i8(<16 x i8> %arr.load)
   ret i8 %r
 }
 
 ; CHECK-LABEL: umin_H
 ; CHECK: uminv {{h[0-9]+}}, {{v[0-9]+}}.8h
 define i16 @umin_H(<8 x i16>* nocapture readonly %arr)  {
-  %rdx.minmax.select = load <8 x i16>, <8 x i16>* %arr
-  %rdx.shuf = shufflevector <8 x i16> %rdx.minmax.select, <8 x i16> undef, <8 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp23 = icmp ult <8 x i16> %rdx.minmax.select, %rdx.shuf
-  %rdx.minmax.select24 = select <8 x i1> %rdx.minmax.cmp23, <8 x i16> %rdx.minmax.select, <8 x i16> %rdx.shuf
-  %rdx.shuf25 = shufflevector <8 x i16> %rdx.minmax.select24, <8 x i16> undef, <8 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp26 = icmp ult <8 x i16> %rdx.minmax.select24, %rdx.shuf25
-  %rdx.minmax.select27 = select <8 x i1> %rdx.minmax.cmp26, <8 x i16> %rdx.minmax.select24, <8 x i16> %rdx.shuf25
-  %rdx.shuf28 = shufflevector <8 x i16> %rdx.minmax.select27, <8 x i16> undef, <8 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp29 = icmp ult <8 x i16> %rdx.minmax.select27, %rdx.shuf28
-  %rdx.minmax.cmp29.elt = extractelement <8 x i1> %rdx.minmax.cmp29, i32 0
-  %rdx.minmax.select27.elt = extractelement <8 x i16> %rdx.minmax.select27, i32 0
-  %rdx.shuf28.elt = extractelement <8 x i16> %rdx.minmax.select27, i32 1
-  %r = select i1 %rdx.minmax.cmp29.elt, i16 %rdx.minmax.select27.elt, i16 %rdx.shuf28.elt
+  %arr.load = load <8 x i16>, <8 x i16>* %arr
+  %r = call i16 @llvm.experimental.vector.reduce.umin.i16.v8i16(<8 x i16> %arr.load)
   ret i16 %r
 }
 
 ; CHECK-LABEL: umin_S
 ; CHECK: uminv {{s[0-9]+}}, {{v[0-9]+}}.4s
 define i32 @umin_S(<4 x i32>* nocapture readonly %arr) {
-  %rdx.minmax.select = load <4 x i32>, <4 x i32>* %arr
-  %rdx.shuf = shufflevector <4 x i32> %rdx.minmax.select, <4 x i32> undef, <4 x i32> <i32 2, i32 3, i32 undef, i32 undef>
-  %rdx.minmax.cmp18 = icmp ult <4 x i32> %rdx.minmax.select, %rdx.shuf
-  %rdx.minmax.select19 = select <4 x i1> %rdx.minmax.cmp18, <4 x i32> %rdx.minmax.select, <4 x i32> %rdx.shuf
-  %rdx.shuf20 = shufflevector <4 x i32> %rdx.minmax.select19, <4 x i32> undef, <4 x i32> <i32 1, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp21 = icmp ult <4 x i32> %rdx.minmax.select19, %rdx.shuf20
-  %rdx.minmax.cmp21.elt = extractelement <4 x i1> %rdx.minmax.cmp21, i32 0
-  %rdx.minmax.select19.elt = extractelement <4 x i32> %rdx.minmax.select19, i32 0
-  %rdx.shuf20.elt = extractelement <4 x i32> %rdx.minmax.select19, i32 1
-  %r = select i1 %rdx.minmax.cmp21.elt, i32 %rdx.minmax.select19.elt, i32 %rdx.shuf20.elt
+  %arr.load = load <4 x i32>, <4 x i32>* %arr
+  %r = call i32 @llvm.experimental.vector.reduce.umin.i32.v4i32(<4 x i32> %arr.load)
   ret i32 %r
 }
 
-; CHECK-LABEL: umin_D
-; CHECK-NOT: uminv
-define i64 @umin_D(<2 x i64>* nocapture readonly %arr)  {
-  %rdx.minmax.select = load <2 x i64>, <2 x i64>* %arr
-  %rdx.shuf = shufflevector <2 x i64> %rdx.minmax.select, <2 x i64> undef, <2 x i32> <i32 1, i32 undef>
-  %rdx.minmax.cmp18 = icmp ult <2 x i64> %rdx.minmax.select, %rdx.shuf
-  %rdx.minmax.cmp18.elt = extractelement <2 x i1> %rdx.minmax.cmp18, i32 0
-  %rdx.minmax.select.elt = extractelement <2 x i64> %rdx.minmax.select, i32 0
-  %rdx.shuf.elt = extractelement <2 x i64> %rdx.minmax.select, i32 1
-  %r = select i1 %rdx.minmax.cmp18.elt, i64 %rdx.minmax.select.elt, i64 %rdx.shuf.elt
-  ret i64 %r
-}
-
 ; CHECK-LABEL: fmaxnm_S
 ; CHECK: fmaxnmv
 define float @fmaxnm_S(<4 x float>* nocapture readonly %arr) {
-  %rdx.minmax.select  = load <4 x float>, <4 x float>* %arr
-  %rdx.shuf = shufflevector <4 x float> %rdx.minmax.select, <4 x float> undef, <4 x i32> <i32 2, i32 3, i32 undef, i32 undef>
-  %rdx.minmax.cmp = fcmp fast oge <4 x float> %rdx.minmax.select, %rdx.shuf
-  %rdx.minmax.select1 = select <4 x i1> %rdx.minmax.cmp, <4 x float> %rdx.minmax.select, <4 x float> %rdx.shuf
-  %rdx.shuf1 = shufflevector <4 x float> %rdx.minmax.select1, <4 x float> undef, <4 x i32> <i32 1, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp1 = fcmp fast oge <4 x float> %rdx.minmax.select1, %rdx.shuf1
-  %rdx.minmax.cmp1.elt = extractelement <4 x i1> %rdx.minmax.cmp1, i32 0
-  %rdx.minmax.select1.elt = extractelement <4 x float> %rdx.minmax.select1, i32 0
-  %rdx.shuf1.elt = extractelement <4 x float> %rdx.minmax.select1, i32 1
-  %r = select i1 %rdx.minmax.cmp1.elt, float %rdx.minmax.select1.elt, float %rdx.shuf1.elt
+  %arr.load  = load <4 x float>, <4 x float>* %arr
+  %r = call nnan float @llvm.experimental.vector.reduce.fmax.f32.v4f32(<4 x float> %arr.load)
   ret float %r
 }
 
 ; CHECK-LABEL: fminnm_S
 ; CHECK: fminnmv
 define float @fminnm_S(<4 x float>* nocapture readonly %arr) {
-  %rdx.minmax.select  = load <4 x float>, <4 x float>* %arr
-  %rdx.shuf = shufflevector <4 x float> %rdx.minmax.select, <4 x float> undef, <4 x i32> <i32 2, i32 3, i32 undef, i32 undef>
-  %rdx.minmax.cmp = fcmp fast ole <4 x float> %rdx.minmax.select, %rdx.shuf
-  %rdx.minmax.select1 = select <4 x i1> %rdx.minmax.cmp, <4 x float> %rdx.minmax.select, <4 x float> %rdx.shuf
-  %rdx.shuf1 = shufflevector <4 x float> %rdx.minmax.select1, <4 x float> undef, <4 x i32> <i32 1, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp1 = fcmp fast ole <4 x float> %rdx.minmax.select1, %rdx.shuf1
-  %rdx.minmax.cmp1.elt = extractelement <4 x i1> %rdx.minmax.cmp1, i32 0
-  %rdx.minmax.select1.elt = extractelement <4 x float> %rdx.minmax.select1, i32 0
-  %rdx.shuf1.elt = extractelement <4 x float> %rdx.minmax.select1, i32 1
-  %r = select i1 %rdx.minmax.cmp1.elt, float %rdx.minmax.select1.elt, float %rdx.shuf1.elt
+  %arr.load  = load <4 x float>, <4 x float>* %arr
+  %r = call nnan float @llvm.experimental.vector.reduce.fmin.f32.v4f32(<4 x float> %arr.load)
   ret float %r
 }
 
+declare i16 @llvm.experimental.vector.reduce.umax.i16.v16i16(<16 x i16>)
+
 define i16 @oversized_umax_256(<16 x i16>* nocapture readonly %arr)  {
 ; CHECK-LABEL: oversized_umax_256
 ; CHECK: umax [[V0:v[0-9]+]].8h, {{v[0-9]+}}.8h, {{v[0-9]+}}.8h
 ; CHECK: umaxv {{h[0-9]+}}, [[V0]]
-  %rdx.minmax.select = load <16 x i16>, <16 x i16>* %arr
-  %rdx.shuf = shufflevector <16 x i16> %rdx.minmax.select, <16 x i16> undef, <16 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp22 = icmp ugt <16 x i16> %rdx.minmax.select, %rdx.shuf
-  %rdx.minmax.select23 = select <16 x i1> %rdx.minmax.cmp22, <16 x i16> %rdx.minmax.select, <16 x i16> %rdx.shuf
-  %rdx.shuf24 = shufflevector <16 x i16> %rdx.minmax.select23, <16 x i16> undef, <16 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp25 = icmp ugt <16 x i16> %rdx.minmax.select23, %rdx.shuf24
-  %rdx.minmax.select26 = select <16 x i1> %rdx.minmax.cmp25, <16 x i16> %rdx.minmax.select23, <16 x i16> %rdx.shuf24
-  %rdx.shuf27 = shufflevector <16 x i16> %rdx.minmax.select26, <16 x i16> undef, <16 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp28 = icmp ugt <16 x i16> %rdx.minmax.select26, %rdx.shuf27
-  %rdx.minmax.select29 = select <16 x i1> %rdx.minmax.cmp28, <16 x i16> %rdx.minmax.select26, <16 x i16> %rdx.shuf27
-  %rdx.shuf30 = shufflevector <16 x i16> %rdx.minmax.select29, <16 x i16> undef, <16 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp31 = icmp ugt <16 x i16> %rdx.minmax.select29, %rdx.shuf30
-  %rdx.minmax.cmp31.elt = extractelement <16 x i1> %rdx.minmax.cmp31, i32 0
-  %rdx.minmax.select29.elt = extractelement <16 x i16> %rdx.minmax.select29, i32 0
-  %rdx.shuf30.elt = extractelement <16 x i16> %rdx.minmax.select29, i32 1
-  %r = select i1 %rdx.minmax.cmp31.elt, i16 %rdx.minmax.select29.elt, i16 %rdx.shuf30.elt
+  %arr.load = load <16 x i16>, <16 x i16>* %arr
+  %r = call i16 @llvm.experimental.vector.reduce.umax.i16.v16i16(<16 x i16> %arr.load)
   ret i16 %r
 }
 
+declare i32 @llvm.experimental.vector.reduce.umax.i32.v16i32(<16 x i32>)
+
 define i32 @oversized_umax_512(<16 x i32>* nocapture readonly %arr)  {
 ; CHECK-LABEL: oversized_umax_512
 ; CHECK: umax v
@@ -347,47 +151,23 @@ define i32 @oversized_umax_512(<16 x i32
 ; CHECK-NEXT: umax [[V0:v[0-9]+]].4s, {{v[0-9]+}}.4s, {{v[0-9]+}}.4s
 ; CHECK-NEXT: umaxv {{s[0-9]+}}, [[V0]]
   %arr.load = load <16 x i32>, <16 x i32>* %arr
-  %rdx.shuf = shufflevector <16 x i32> %arr.load, <16 x i32> undef, <16 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp22 = icmp ugt <16 x i32> %arr.load, %rdx.shuf
-  %rdx.minmax.select23 = select <16 x i1> %rdx.minmax.cmp22, <16 x i32> %arr.load, <16 x i32> %rdx.shuf
-  %rdx.shuf24 = shufflevector <16 x i32> %rdx.minmax.select23, <16 x i32> undef, <16 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp25 = icmp ugt <16 x i32> %rdx.minmax.select23, %rdx.shuf24
-  %rdx.minmax.select26 = select <16 x i1> %rdx.minmax.cmp25, <16 x i32> %rdx.minmax.select23, <16 x i32> %rdx.shuf24
-  %rdx.shuf27 = shufflevector <16 x i32> %rdx.minmax.select26, <16 x i32> undef, <16 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp28 = icmp ugt <16 x i32> %rdx.minmax.select26, %rdx.shuf27
-  %rdx.minmax.select29 = select <16 x i1> %rdx.minmax.cmp28, <16 x i32> %rdx.minmax.select26, <16 x i32> %rdx.shuf27
-  %rdx.shuf30 = shufflevector <16 x i32> %rdx.minmax.select29, <16 x i32> undef, <16 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp31 = icmp ugt <16 x i32> %rdx.minmax.select29, %rdx.shuf30
-  %rdx.minmax.cmp31.elt = extractelement <16 x i1> %rdx.minmax.cmp31, i32 0
-  %rdx.minmax.select29.elt = extractelement <16 x i32> %rdx.minmax.select29, i32 0
-  %rdx.shuf30.elt = extractelement <16 x i32> %rdx.minmax.select29, i32 1
-  %r = select i1 %rdx.minmax.cmp31.elt, i32 %rdx.minmax.select29.elt, i32 %rdx.shuf30.elt
+  %r = call i32 @llvm.experimental.vector.reduce.umax.i32.v16i32(<16 x i32> %arr.load)
   ret i32 %r
 }
 
+declare i16 @llvm.experimental.vector.reduce.umin.i16.v16i16(<16 x i16>)
+
 define i16 @oversized_umin_256(<16 x i16>* nocapture readonly %arr)  {
 ; CHECK-LABEL: oversized_umin_256
 ; CHECK: umin [[V0:v[0-9]+]].8h, {{v[0-9]+}}.8h, {{v[0-9]+}}.8h
 ; CHECK: uminv {{h[0-9]+}}, [[V0]]
-  %rdx.minmax.select = load <16 x i16>, <16 x i16>* %arr
-  %rdx.shuf = shufflevector <16 x i16> %rdx.minmax.select, <16 x i16> undef, <16 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp22 = icmp ult <16 x i16> %rdx.minmax.select, %rdx.shuf
-  %rdx.minmax.select23 = select <16 x i1> %rdx.minmax.cmp22, <16 x i16> %rdx.minmax.select, <16 x i16> %rdx.shuf
-  %rdx.shuf24 = shufflevector <16 x i16> %rdx.minmax.select23, <16 x i16> undef, <16 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp25 = icmp ult <16 x i16> %rdx.minmax.select23, %rdx.shuf24
-  %rdx.minmax.select26 = select <16 x i1> %rdx.minmax.cmp25, <16 x i16> %rdx.minmax.select23, <16 x i16> %rdx.shuf24
-  %rdx.shuf27 = shufflevector <16 x i16> %rdx.minmax.select26, <16 x i16> undef, <16 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp28 = icmp ult <16 x i16> %rdx.minmax.select26, %rdx.shuf27
-  %rdx.minmax.select29 = select <16 x i1> %rdx.minmax.cmp28, <16 x i16> %rdx.minmax.select26, <16 x i16> %rdx.shuf27
-  %rdx.shuf30 = shufflevector <16 x i16> %rdx.minmax.select29, <16 x i16> undef, <16 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp31 = icmp ult <16 x i16> %rdx.minmax.select29, %rdx.shuf30
-  %rdx.minmax.cmp31.elt = extractelement <16 x i1> %rdx.minmax.cmp31, i32 0
-  %rdx.minmax.select29.elt = extractelement <16 x i16> %rdx.minmax.select29, i32 0
-  %rdx.shuf30.elt = extractelement <16 x i16> %rdx.minmax.select29, i32 1
-  %r = select i1 %rdx.minmax.cmp31.elt, i16 %rdx.minmax.select29.elt, i16 %rdx.shuf30.elt
+  %arr.load = load <16 x i16>, <16 x i16>* %arr
+  %r = call i16 @llvm.experimental.vector.reduce.umin.i16.v16i16(<16 x i16> %arr.load)
   ret i16 %r
 }
 
+declare i32 @llvm.experimental.vector.reduce.umin.i32.v16i32(<16 x i32>)
+
 define i32 @oversized_umin_512(<16 x i32>* nocapture readonly %arr)  {
 ; CHECK-LABEL: oversized_umin_512
 ; CHECK: umin v
@@ -395,47 +175,23 @@ define i32 @oversized_umin_512(<16 x i32
 ; CHECK-NEXT: umin [[V0:v[0-9]+]].4s, {{v[0-9]+}}.4s, {{v[0-9]+}}.4s
 ; CHECK-NEXT: uminv {{s[0-9]+}}, [[V0]]
   %arr.load = load <16 x i32>, <16 x i32>* %arr
-  %rdx.shuf = shufflevector <16 x i32> %arr.load, <16 x i32> undef, <16 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp22 = icmp ult <16 x i32> %arr.load, %rdx.shuf
-  %rdx.minmax.select23 = select <16 x i1> %rdx.minmax.cmp22, <16 x i32> %arr.load, <16 x i32> %rdx.shuf
-  %rdx.shuf24 = shufflevector <16 x i32> %rdx.minmax.select23, <16 x i32> undef, <16 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp25 = icmp ult <16 x i32> %rdx.minmax.select23, %rdx.shuf24
-  %rdx.minmax.select26 = select <16 x i1> %rdx.minmax.cmp25, <16 x i32> %rdx.minmax.select23, <16 x i32> %rdx.shuf24
-  %rdx.shuf27 = shufflevector <16 x i32> %rdx.minmax.select26, <16 x i32> undef, <16 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp28 = icmp ult <16 x i32> %rdx.minmax.select26, %rdx.shuf27
-  %rdx.minmax.select29 = select <16 x i1> %rdx.minmax.cmp28, <16 x i32> %rdx.minmax.select26, <16 x i32> %rdx.shuf27
-  %rdx.shuf30 = shufflevector <16 x i32> %rdx.minmax.select29, <16 x i32> undef, <16 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp31 = icmp ult <16 x i32> %rdx.minmax.select29, %rdx.shuf30
-  %rdx.minmax.cmp31.elt = extractelement <16 x i1> %rdx.minmax.cmp31, i32 0
-  %rdx.minmax.select29.elt = extractelement <16 x i32> %rdx.minmax.select29, i32 0
-  %rdx.shuf30.elt = extractelement <16 x i32> %rdx.minmax.select29, i32 1
-  %r = select i1 %rdx.minmax.cmp31.elt, i32 %rdx.minmax.select29.elt, i32 %rdx.shuf30.elt
+  %r = call i32 @llvm.experimental.vector.reduce.umin.i32.v16i32(<16 x i32> %arr.load)
   ret i32 %r
 }
 
+declare i16 @llvm.experimental.vector.reduce.smax.i16.v16i16(<16 x i16>)
+
 define i16 @oversized_smax_256(<16 x i16>* nocapture readonly %arr)  {
 ; CHECK-LABEL: oversized_smax_256
 ; CHECK: smax [[V0:v[0-9]+]].8h, {{v[0-9]+}}.8h, {{v[0-9]+}}.8h
 ; CHECK: smaxv {{h[0-9]+}}, [[V0]]
   %arr.load = load <16 x i16>, <16 x i16>* %arr
-  %rdx.shuf = shufflevector <16 x i16> %arr.load, <16 x i16> undef, <16 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp22 = icmp sgt <16 x i16> %arr.load, %rdx.shuf
-  %rdx.minmax.select23 = select <16 x i1> %rdx.minmax.cmp22, <16 x i16> %arr.load, <16 x i16> %rdx.shuf
-  %rdx.shuf24 = shufflevector <16 x i16> %rdx.minmax.select23, <16 x i16> undef, <16 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp25 = icmp sgt <16 x i16> %rdx.minmax.select23, %rdx.shuf24
-  %rdx.minmax.select26 = select <16 x i1> %rdx.minmax.cmp25, <16 x i16> %rdx.minmax.select23, <16 x i16> %rdx.shuf24
-  %rdx.shuf27 = shufflevector <16 x i16> %rdx.minmax.select26, <16 x i16> undef, <16 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp28 = icmp sgt <16 x i16> %rdx.minmax.select26, %rdx.shuf27
-  %rdx.minmax.select29 = select <16 x i1> %rdx.minmax.cmp28, <16 x i16> %rdx.minmax.select26, <16 x i16> %rdx.shuf27
-  %rdx.shuf30 = shufflevector <16 x i16> %rdx.minmax.select29, <16 x i16> undef, <16 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp31 = icmp sgt <16 x i16> %rdx.minmax.select29, %rdx.shuf30
-  %rdx.minmax.cmp31.elt = extractelement <16 x i1> %rdx.minmax.cmp31, i32 0
-  %rdx.minmax.select29.elt = extractelement <16 x i16> %rdx.minmax.select29, i32 0
-  %rdx.shuf30.elt = extractelement <16 x i16> %rdx.minmax.select29, i32 1
-  %r = select i1 %rdx.minmax.cmp31.elt, i16 %rdx.minmax.select29.elt, i16 %rdx.shuf30.elt
+  %r = call i16 @llvm.experimental.vector.reduce.smax.i16.v16i16(<16 x i16> %arr.load)
   ret i16 %r
 }
 
+declare i32 @llvm.experimental.vector.reduce.smax.i32.v16i32(<16 x i32>)
+
 define i32 @oversized_smax_512(<16 x i32>* nocapture readonly %arr)  {
 ; CHECK-LABEL: oversized_smax_512
 ; CHECK: smax v
@@ -443,47 +199,23 @@ define i32 @oversized_smax_512(<16 x i32
 ; CHECK-NEXT: smax [[V0:v[0-9]+]].4s, {{v[0-9]+}}.4s, {{v[0-9]+}}.4s
 ; CHECK-NEXT: smaxv {{s[0-9]+}}, [[V0]]
   %arr.load = load <16 x i32>, <16 x i32>* %arr
-  %rdx.shuf = shufflevector <16 x i32> %arr.load, <16 x i32> undef, <16 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp22 = icmp sgt <16 x i32> %arr.load, %rdx.shuf
-  %rdx.minmax.select23 = select <16 x i1> %rdx.minmax.cmp22, <16 x i32> %arr.load, <16 x i32> %rdx.shuf
-  %rdx.shuf24 = shufflevector <16 x i32> %rdx.minmax.select23, <16 x i32> undef, <16 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp25 = icmp sgt <16 x i32> %rdx.minmax.select23, %rdx.shuf24
-  %rdx.minmax.select26 = select <16 x i1> %rdx.minmax.cmp25, <16 x i32> %rdx.minmax.select23, <16 x i32> %rdx.shuf24
-  %rdx.shuf27 = shufflevector <16 x i32> %rdx.minmax.select26, <16 x i32> undef, <16 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp28 = icmp sgt <16 x i32> %rdx.minmax.select26, %rdx.shuf27
-  %rdx.minmax.select29 = select <16 x i1> %rdx.minmax.cmp28, <16 x i32> %rdx.minmax.select26, <16 x i32> %rdx.shuf27
-  %rdx.shuf30 = shufflevector <16 x i32> %rdx.minmax.select29, <16 x i32> undef, <16 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp31 = icmp sgt <16 x i32> %rdx.minmax.select29, %rdx.shuf30
-  %rdx.minmax.cmp31.elt = extractelement <16 x i1> %rdx.minmax.cmp31, i32 0
-  %rdx.minmax.select29.elt = extractelement <16 x i32> %rdx.minmax.select29, i32 0
-  %rdx.shuf30.elt = extractelement <16 x i32> %rdx.minmax.select29, i32 1
-  %r = select i1 %rdx.minmax.cmp31.elt, i32 %rdx.minmax.select29.elt, i32 %rdx.shuf30.elt
+  %r = call i32 @llvm.experimental.vector.reduce.smax.i32.v16i32(<16 x i32> %arr.load)
   ret i32 %r
 }
 
+declare i16 @llvm.experimental.vector.reduce.smin.i16.v16i16(<16 x i16>)
+
 define i16 @oversized_smin_256(<16 x i16>* nocapture readonly %arr)  {
 ; CHECK-LABEL: oversized_smin_256
 ; CHECK: smin [[V0:v[0-9]+]].8h, {{v[0-9]+}}.8h, {{v[0-9]+}}.8h
 ; CHECK: sminv {{h[0-9]+}}, [[V0]]
-  %rdx.minmax.select = load <16 x i16>, <16 x i16>* %arr
-  %rdx.shuf = shufflevector <16 x i16> %rdx.minmax.select, <16 x i16> undef, <16 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp22 = icmp slt <16 x i16> %rdx.minmax.select, %rdx.shuf
-  %rdx.minmax.select23 = select <16 x i1> %rdx.minmax.cmp22, <16 x i16> %rdx.minmax.select, <16 x i16> %rdx.shuf
-  %rdx.shuf24 = shufflevector <16 x i16> %rdx.minmax.select23, <16 x i16> undef, <16 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp25 = icmp slt <16 x i16> %rdx.minmax.select23, %rdx.shuf24
-  %rdx.minmax.select26 = select <16 x i1> %rdx.minmax.cmp25, <16 x i16> %rdx.minmax.select23, <16 x i16> %rdx.shuf24
-  %rdx.shuf27 = shufflevector <16 x i16> %rdx.minmax.select26, <16 x i16> undef, <16 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp28 = icmp slt <16 x i16> %rdx.minmax.select26, %rdx.shuf27
-  %rdx.minmax.select29 = select <16 x i1> %rdx.minmax.cmp28, <16 x i16> %rdx.minmax.select26, <16 x i16> %rdx.shuf27
-  %rdx.shuf30 = shufflevector <16 x i16> %rdx.minmax.select29, <16 x i16> undef, <16 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp31 = icmp slt <16 x i16> %rdx.minmax.select29, %rdx.shuf30
-  %rdx.minmax.cmp31.elt = extractelement <16 x i1> %rdx.minmax.cmp31, i32 0
-  %rdx.minmax.select29.elt = extractelement <16 x i16> %rdx.minmax.select29, i32 0
-  %rdx.shuf30.elt = extractelement <16 x i16> %rdx.minmax.select29, i32 1
-  %r = select i1 %rdx.minmax.cmp31.elt, i16 %rdx.minmax.select29.elt, i16 %rdx.shuf30.elt
+  %arr.load = load <16 x i16>, <16 x i16>* %arr
+  %r = call i16 @llvm.experimental.vector.reduce.smin.i16.v16i16(<16 x i16> %arr.load)
   ret i16 %r
 }
 
+declare i32 @llvm.experimental.vector.reduce.smin.i32.v16i32(<16 x i32>)
+
 define i32 @oversized_smin_512(<16 x i32>* nocapture readonly %arr)  {
 ; CHECK-LABEL: oversized_smin_512
 ; CHECK: smin v
@@ -491,20 +223,6 @@ define i32 @oversized_smin_512(<16 x i32
 ; CHECK-NEXT: smin [[V0:v[0-9]+]].4s, {{v[0-9]+}}.4s, {{v[0-9]+}}.4s
 ; CHECK-NEXT: sminv {{s[0-9]+}}, [[V0]]
   %arr.load = load <16 x i32>, <16 x i32>* %arr
-  %rdx.shuf = shufflevector <16 x i32> %arr.load, <16 x i32> undef, <16 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp22 = icmp slt <16 x i32> %arr.load, %rdx.shuf
-  %rdx.minmax.select23 = select <16 x i1> %rdx.minmax.cmp22, <16 x i32> %arr.load, <16 x i32> %rdx.shuf
-  %rdx.shuf24 = shufflevector <16 x i32> %rdx.minmax.select23, <16 x i32> undef, <16 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp25 = icmp slt <16 x i32> %rdx.minmax.select23, %rdx.shuf24
-  %rdx.minmax.select26 = select <16 x i1> %rdx.minmax.cmp25, <16 x i32> %rdx.minmax.select23, <16 x i32> %rdx.shuf24
-  %rdx.shuf27 = shufflevector <16 x i32> %rdx.minmax.select26, <16 x i32> undef, <16 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp28 = icmp slt <16 x i32> %rdx.minmax.select26, %rdx.shuf27
-  %rdx.minmax.select29 = select <16 x i1> %rdx.minmax.cmp28, <16 x i32> %rdx.minmax.select26, <16 x i32> %rdx.shuf27
-  %rdx.shuf30 = shufflevector <16 x i32> %rdx.minmax.select29, <16 x i32> undef, <16 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %rdx.minmax.cmp31 = icmp slt <16 x i32> %rdx.minmax.select29, %rdx.shuf30
-  %rdx.minmax.cmp31.elt = extractelement <16 x i1> %rdx.minmax.cmp31, i32 0
-  %rdx.minmax.select29.elt = extractelement <16 x i32> %rdx.minmax.select29, i32 0
-  %rdx.shuf30.elt = extractelement <16 x i32> %rdx.minmax.select29, i32 1
-  %r = select i1 %rdx.minmax.cmp31.elt, i32 %rdx.minmax.select29.elt, i32 %rdx.shuf30.elt
+  %r = call i32 @llvm.experimental.vector.reduce.smin.i32.v16i32(<16 x i32> %arr.load)
   ret i32 %r
 }

Modified: llvm/trunk/test/CodeGen/AArch64/arm64-vabs.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/arm64-vabs.ll?rev=302678&r1=302677&r2=302678&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/AArch64/arm64-vabs.ll (original)
+++ llvm/trunk/test/CodeGen/AArch64/arm64-vabs.ll Wed May 10 10:15:38 2017
@@ -134,8 +134,10 @@ define <2 x i64> @uabdl2_2d(<4 x i32>* %
   ret <2 x i64> %tmp4
 }
 
-define i16 @uabdl8h_log2_shuffle(<16 x i8>* %a, <16 x i8>* %b) {
-; CHECK-LABEL: uabdl8h_log2_shuffle
+declare i16 @llvm.experimental.vector.reduce.add.i16.v16i16(<16 x i16>)
+
+define i16 @uabdl8h_rdx(<16 x i8>* %a, <16 x i8>* %b) {
+; CHECK-LABEL: uabdl8h_rdx
 ; CHECK: uabdl2.8h
 ; CHECK: uabdl.8h
   %aload = load <16 x i8>, <16 x i8>* %a, align 1
@@ -146,20 +148,14 @@ define i16 @uabdl8h_log2_shuffle(<16 x i
   %abcmp = icmp slt <16 x i16> %abdiff, zeroinitializer
   %ababs = sub nsw <16 x i16> zeroinitializer, %abdiff
   %absel = select <16 x i1> %abcmp, <16 x i16> %ababs, <16 x i16> %abdiff
-  %rdx.shuf = shufflevector <16 x i16> %absel, <16 x i16> undef, <16 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %bin1.rdx = add <16 x i16> %absel, %rdx.shuf
-  %rdx.shufx = shufflevector <16 x i16> %bin1.rdx, <16 x i16> undef, <16 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %bin.rdx = add <16 x i16> %bin1.rdx, %rdx.shufx
-  %rdx.shuf136 = shufflevector <16 x i16> %bin.rdx, <16 x i16> undef, <16 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %bin.rdx137 = add <16 x i16> %bin.rdx, %rdx.shuf136
-  %rdx.shuf138 = shufflevector <16 x i16> %bin.rdx137, <16 x i16> undef, <16 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %bin.rdx139 = add <16 x i16> %bin.rdx137, %rdx.shuf138
-  %reduced_v = extractelement <16 x i16> %bin.rdx139, i16 0
+  %reduced_v = call i16 @llvm.experimental.vector.reduce.add.i16.v16i16(<16 x i16> %absel)
   ret i16 %reduced_v
 }
 
-define i32 @uabdl4s_log2_shuffle(<8 x i16>* %a, <8 x i16>* %b) {
-; CHECK-LABEL: uabdl4s_log2_shuffle
+declare i32 @llvm.experimental.vector.reduce.add.i32.v8i32(<8 x i32>)
+
+define i32 @uabdl4s_rdx(<8 x i16>* %a, <8 x i16>* %b) {
+; CHECK-LABEL: uabdl4s_rdx
 ; CHECK: uabdl2.4s
 ; CHECK: uabdl.4s
   %aload = load <8 x i16>, <8 x i16>* %a, align 1
@@ -170,18 +166,14 @@ define i32 @uabdl4s_log2_shuffle(<8 x i1
   %abcmp = icmp slt <8 x i32> %abdiff, zeroinitializer
   %ababs = sub nsw <8 x i32> zeroinitializer, %abdiff
   %absel = select <8 x i1> %abcmp, <8 x i32> %ababs, <8 x i32> %abdiff
-  %rdx.shuf = shufflevector <8 x i32> %absel, <8 x i32> undef, <8 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef>
-  %bin.rdx = add <8 x i32> %absel, %rdx.shuf
-  %rdx.shuf136 = shufflevector <8 x i32> %bin.rdx, <8 x i32> undef, <8 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %bin.rdx137 = add <8 x i32> %bin.rdx, %rdx.shuf136
-  %rdx.shuf138 = shufflevector <8 x i32> %bin.rdx137, <8 x i32> undef, <8 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-  %bin.rdx139 = add <8 x i32> %bin.rdx137, %rdx.shuf138
-  %reduced_v = extractelement <8 x i32> %bin.rdx139, i32 0
+  %reduced_v = call i32 @llvm.experimental.vector.reduce.add.i32.v8i32(<8 x i32> %absel)
   ret i32 %reduced_v
 }
 
-define i64 @uabdl2d_log2_shuffle(<4 x i32>* %a, <4 x i32>* %b, i32 %h) {
-; CHECK: uabdl2d_log2_shuffle
+declare i64 @llvm.experimental.vector.reduce.add.i64.v4i64(<4 x i64>)
+
+define i64 @uabdl2d_rdx(<4 x i32>* %a, <4 x i32>* %b, i32 %h) {
+; CHECK: uabdl2d_rdx
 ; CHECK: uabdl2.2d
 ; CHECK: uabdl.2d
   %aload = load <4 x i32>, <4 x i32>* %a, align 1
@@ -192,11 +184,7 @@ define i64 @uabdl2d_log2_shuffle(<4 x i3
   %abcmp = icmp slt <4 x i64> %abdiff, zeroinitializer
   %ababs = sub nsw <4 x i64> zeroinitializer, %abdiff
   %absel = select <4 x i1> %abcmp, <4 x i64> %ababs, <4 x i64> %abdiff
-  %rdx.shuf136 = shufflevector <4 x i64> %absel, <4 x i64> undef, <4 x i32> <i32 2, i32 3, i32 undef, i32 undef>
-  %bin.rdx137 = add <4 x i64> %absel, %rdx.shuf136
-  %rdx.shuf138 = shufflevector <4 x i64> %bin.rdx137, <4 x i64> undef, <4 x i32> <i32 1, i32 undef, i32 undef, i32 undef>
-  %bin.rdx139 = add <4 x i64> %bin.rdx137, %rdx.shuf138
-  %reduced_v = extractelement <4 x i64> %bin.rdx139, i16 0
+  %reduced_v = call i64 @llvm.experimental.vector.reduce.add.i64.v4i64(<4 x i64> %absel)
   ret i64 %reduced_v
 }
 

Modified: llvm/trunk/test/Transforms/LoopVectorize/AArch64/reduction-small-size.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/LoopVectorize/AArch64/reduction-small-size.ll?rev=302678&r1=302677&r2=302678&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/LoopVectorize/AArch64/reduction-small-size.ll (original)
+++ llvm/trunk/test/Transforms/LoopVectorize/AArch64/reduction-small-size.ll Wed May 10 10:15:38 2017
@@ -20,15 +20,7 @@ target triple = "aarch64--linux-gnu"
 ; CHECK:   add <16 x i8>
 ;
 ; CHECK: middle.block:
-; CHECK:   shufflevector <16 x i8>
-; CHECK:   add <16 x i8>
-; CHECK:   shufflevector <16 x i8>
-; CHECK:   add <16 x i8>
-; CHECK:   shufflevector <16 x i8>
-; CHECK:   add <16 x i8>
-; CHECK:   shufflevector <16 x i8>
-; CHECK:   add <16 x i8>
-; CHECK:   [[Rdx:%[a-zA-Z0-9.]+]] = extractelement <16 x i8>
+; CHECK:   [[Rdx:%[a-zA-Z0-9.]+]] = call i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8>
 ; CHECK:   zext i8 [[Rdx]] to i32
 ;
 define i8 @reduction_i8(i8* nocapture readonly %a, i8* nocapture readonly %b, i32 %n) {
@@ -83,13 +75,7 @@ for.body:
 ; CHECK:   add <8 x i16>
 ;
 ; CHECK: middle.block:
-; CHECK:   shufflevector <8 x i16>
-; CHECK:   add <8 x i16>
-; CHECK:   shufflevector <8 x i16>
-; CHECK:   add <8 x i16>
-; CHECK:   shufflevector <8 x i16>
-; CHECK:   add <8 x i16>
-; CHECK:   [[Rdx:%[a-zA-Z0-9.]+]] = extractelement <8 x i16>
+; CHECK:   [[Rdx:%[a-zA-Z0-9.]+]] = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16>
 ; CHECK:   zext i16 [[Rdx]] to i32
 ;
 define i16 @reduction_i16_1(i16* nocapture readonly %a, i16* nocapture readonly %b, i32 %n) {
@@ -146,13 +132,7 @@ for.body:
 ; CHECK:   add <8 x i16>
 ;
 ; CHECK: middle.block:
-; CHECK:   shufflevector <8 x i16>
-; CHECK:   add <8 x i16>
-; CHECK:   shufflevector <8 x i16>
-; CHECK:   add <8 x i16>
-; CHECK:   shufflevector <8 x i16>
-; CHECK:   add <8 x i16>
-; CHECK:   [[Rdx:%[a-zA-Z0-9.]+]] = extractelement <8 x i16>
+; CHECK:   [[Rdx:%[a-zA-Z0-9.]+]] = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16>
 ; CHECK:   zext i16 [[Rdx]] to i32
 ;
 define i16 @reduction_i16_2(i8* nocapture readonly %a, i8* nocapture readonly %b, i32 %n) {

Modified: llvm/trunk/test/Transforms/SLPVectorizer/AArch64/gather-root.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/SLPVectorizer/AArch64/gather-root.ll?rev=302678&r1=302677&r2=302678&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/SLPVectorizer/AArch64/gather-root.ll (original)
+++ llvm/trunk/test/Transforms/SLPVectorizer/AArch64/gather-root.ll Wed May 10 10:15:38 2017
@@ -11,14 +11,8 @@ target triple = "aarch64--linux-gnu"
 ; DEFAULT-LABEL: @PR28330(
 ; DEFAULT: %tmp17 = phi i32 [ %bin.extra, %for.body ], [ 0, %entry ]
 ; DEFAULT: %[[S0:.+]] = select <8 x i1> %1, <8 x i32> <i32 -720, i32 -720, i32 -720, i32 -720, i32 -720, i32 -720, i32 -720, i32 -720>, <8 x i32> <i32 -80, i32 -80, i32 -80, i32 -80, i32 -80, i32 -80, i32 -80, i32 -80>
-; DEFAULT: %[[R0:.+]] = shufflevector <8 x i32> %[[S0]], <8 x i32> undef, <8 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef>
-; DEFAULT: %[[R1:.+]] = add <8 x i32> %[[S0]], %[[R0]]
-; DEFAULT: %[[R2:.+]] = shufflevector <8 x i32> %[[R1]], <8 x i32> undef, <8 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-; DEFAULT: %[[R3:.+]] = add <8 x i32> %[[R1]], %[[R2]]
-; DEFAULT: %[[R4:.+]] = shufflevector <8 x i32> %[[R3]], <8 x i32> undef, <8 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-; DEFAULT: %[[R5:.+]] = add <8 x i32> %[[R3]], %[[R4]]
-; DEFAULT: %[[R6:.+]] = extractelement <8 x i32> %[[R5]], i32 0
-; DEFAULT: %bin.extra = add i32 %[[R6]], %tmp17
+; DEFAULT: %[[Rdx:.+]] = call i32 @llvm.experimental.vector.reduce.add.i32.v8i32(<8 x i32> %[[S0]])
+; DEFAULT: %bin.extra = add i32 %[[Rdx]], %tmp17
 ;
 ; GATHER-LABEL: @PR28330(
 ; GATHER: %tmp17 = phi i32 [ %bin.extra, %for.body ], [ 0, %entry ]
@@ -38,14 +32,8 @@ target triple = "aarch64--linux-gnu"
 ; GATHER: %[[I5:.+]] = insertelement <8 x i32> %[[I4]], i32 %tmp29, i32 5
 ; GATHER: %[[I6:.+]] = insertelement <8 x i32> %[[I5]], i32 %tmp31, i32 6
 ; GATHER: %[[I7:.+]] = insertelement <8 x i32> %[[I6]], i32 %tmp33, i32 7
-; GATHER: %[[R0:.+]] = shufflevector <8 x i32> %[[I7]], <8 x i32> undef, <8 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef>
-; GATHER: %[[R1:.+]] = add <8 x i32> %[[I7]], %[[R0]]
-; GATHER: %[[R2:.+]] = shufflevector <8 x i32> %[[R1]], <8 x i32> undef, <8 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-; GATHER: %[[R3:.+]] = add <8 x i32> %[[R1]], %[[R2]]
-; GATHER: %[[R4:.+]] = shufflevector <8 x i32> %[[R3]], <8 x i32> undef, <8 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-; GATHER: %[[R5:.+]] = add <8 x i32> %[[R3]], %[[R4]]
-; GATHER: %[[R6:.+]] = extractelement <8 x i32> %[[R5]], i32 0
-; GATHER: %bin.extra = add i32 %[[R6]], %tmp17
+; GATHER: %[[Rdx:.+]] = call i32 @llvm.experimental.vector.reduce.add.i32.v8i32(<8 x i32> %[[I7]])
+; GATHER: %bin.extra = add i32 %[[Rdx]], %tmp17
 ;
 ; MAX-COST-LABEL: @PR28330(
 ; MAX-COST-NOT: shufflevector
@@ -107,14 +95,8 @@ define void @PR32038(i32 %n) {
 ; DEFAULT-NEXT:    [[TMP28:%.*]] = add i32 [[TMP26]], undef
 ; DEFAULT-NEXT:    [[TMP30:%.*]] = add i32 [[TMP28]], undef
 ; DEFAULT-NEXT:    [[TMP32:%.*]] = add i32 [[TMP30]], undef
-; DEFAULT-NEXT:    [[RDX_SHUF:%.*]] = shufflevector <8 x i32> [[TMP2]], <8 x i32> undef, <8 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef>
-; DEFAULT-NEXT:    [[BIN_RDX:%.*]] = add <8 x i32> [[TMP2]], [[RDX_SHUF]]
-; DEFAULT-NEXT:    [[RDX_SHUF1:%.*]] = shufflevector <8 x i32> [[BIN_RDX]], <8 x i32> undef, <8 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-; DEFAULT-NEXT:    [[BIN_RDX2:%.*]] = add <8 x i32> [[BIN_RDX]], [[RDX_SHUF1]]
-; DEFAULT-NEXT:    [[RDX_SHUF3:%.*]] = shufflevector <8 x i32> [[BIN_RDX2]], <8 x i32> undef, <8 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-; DEFAULT-NEXT:    [[BIN_RDX4:%.*]] = add <8 x i32> [[BIN_RDX2]], [[RDX_SHUF3]]
-; DEFAULT-NEXT:    [[TMP3:%.*]] = extractelement <8 x i32> [[BIN_RDX4]], i32 0
-; DEFAULT-NEXT:    [[BIN_EXTRA]] = add i32 [[TMP3]], -5
+; DEFAULT-NEXT:    [[Rdx:%.*]] = call i32 @llvm.experimental.vector.reduce.add.i32.v8i32(<8 x i32> [[TMP2]])
+; DEFAULT-NEXT:    [[BIN_EXTRA]] = add i32 [[Rdx]], -5
 ; DEFAULT-NEXT:    [[TMP34:%.*]] = add i32 [[TMP32]], undef
 ; DEFAULT-NEXT:    br label [[FOR_BODY]]
 ;
@@ -162,14 +144,8 @@ define void @PR32038(i32 %n) {
 ; GATHER-NEXT:    [[TMP5:%.*]] = insertelement <8 x i32> [[TMP4]], i32 [[TMP29]], i32 5
 ; GATHER-NEXT:    [[TMP6:%.*]] = insertelement <8 x i32> [[TMP5]], i32 [[TMP31]], i32 6
 ; GATHER-NEXT:    [[TMP7:%.*]] = insertelement <8 x i32> [[TMP6]], i32 [[TMP33]], i32 7
-; GATHER-NEXT:    [[RDX_SHUF:%.*]] = shufflevector <8 x i32> [[TMP7]], <8 x i32> undef, <8 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef>
-; GATHER-NEXT:    [[BIN_RDX:%.*]] = add <8 x i32> [[TMP7]], [[RDX_SHUF]]
-; GATHER-NEXT:    [[RDX_SHUF1:%.*]] = shufflevector <8 x i32> [[BIN_RDX]], <8 x i32> undef, <8 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-; GATHER-NEXT:    [[BIN_RDX2:%.*]] = add <8 x i32> [[BIN_RDX]], [[RDX_SHUF1]]
-; GATHER-NEXT:    [[RDX_SHUF3:%.*]] = shufflevector <8 x i32> [[BIN_RDX2]], <8 x i32> undef, <8 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
-; GATHER-NEXT:    [[BIN_RDX4:%.*]] = add <8 x i32> [[BIN_RDX2]], [[RDX_SHUF3]]
-; GATHER-NEXT:    [[TMP8:%.*]] = extractelement <8 x i32> [[BIN_RDX4]], i32 0
-; GATHER-NEXT:    [[BIN_EXTRA]] = add i32 [[TMP8]], -5
+; GATHER-NEXT:    [[Rdx:%.*]] = call i32 @llvm.experimental.vector.reduce.add.i32.v8i32(<8 x i32> [[TMP7]])
+; GATHER-NEXT:    [[BIN_EXTRA]] = add i32 [[Rdx]], -5
 ; GATHER-NEXT:    [[TMP34:%.*]] = add i32 [[TMP32]], [[TMP33]]
 ; GATHER-NEXT:    br label [[FOR_BODY]]
 ;




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