diff --git a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
--- a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
+++ b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
@@ -14,6 +14,7 @@
 #include "RISCVISelLowering.h"
 #include "MCTargetDesc/RISCVMatInt.h"
 #include "RISCV.h"
+#include "RISCVISelDAGToDAG.h"
 #include "RISCVMachineFunctionInfo.h"
 #include "RISCVRegisterInfo.h"
 #include "RISCVSubtarget.h"
@@ -21,11 +22,13 @@
 #include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/Analysis/MemoryLocation.h"
+#include "llvm/Analysis/VectorUtils.h"
 #include "llvm/CodeGen/MachineFrameInfo.h"
 #include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineInstrBuilder.h"
 #include "llvm/CodeGen/MachineJumpTableInfo.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
+#include "llvm/CodeGen/SelectionDAGNodes.h"
 #include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
 #include "llvm/CodeGen/ValueTypes.h"
 #include "llvm/IR/DiagnosticInfo.h"
@@ -1055,7 +1058,8 @@
   if (Subtarget.hasVInstructions())
     setTargetDAGCombine({ISD::FCOPYSIGN, ISD::MGATHER, ISD::MSCATTER,
                          ISD::VP_GATHER, ISD::VP_SCATTER, ISD::SRA, ISD::SRL,
-                         ISD::SHL, ISD::STORE, ISD::SPLAT_VECTOR});
+                         ISD::SHL, ISD::STORE, ISD::SPLAT_VECTOR,
+                         ISD::VECTOR_DEINTERLEAVE});
   if (Subtarget.useRVVForFixedLengthVectors())
     setTargetDAGCombine(ISD::BITCAST);
 
@@ -10354,6 +10358,52 @@
   return tryFoldSelectIntoOp(N, DAG, FalseVal, TrueVal, /*Swapped*/true);
 }
 
+static LoadSDNode *getLoadFromVectorDeinterleave(SDNode *N) {
+  SDValue L = N->getOperand(0), R = N->getOperand(1);
+  if (L->getOpcode() != ISD::EXTRACT_SUBVECTOR ||
+      R->getOpcode() != ISD::EXTRACT_SUBVECTOR)
+    return nullptr;
+  if (L->getOperand(0) != R->getOperand(0))
+    return nullptr;
+  auto *Load = dyn_cast<LoadSDNode>(L->getOperand(0));
+  if (!Load || !Load->isSimple())
+    return nullptr;
+  if (Load->getOpcode() != ISD::LOAD)
+    return nullptr;
+  if (L->getConstantOperandVal(1) != 0)
+    return nullptr;
+  if (R->getConstantOperandVal(1) !=
+      Load->getValueType(0).getVectorMinNumElements() / 2)
+    return nullptr;
+  return Load;
+}
+
+// Returns either a vector_interleave if operating on scalable vectors, or a
+// concat_vectors used in a vector_shuffle if operating on fixed vectors.
+static SDNode *getVectorInterleaveFromStore(StoreSDNode *N) {
+  SDValue Val = N->getValue();
+
+  if (auto *Shuffle = dyn_cast<ShuffleVectorSDNode>(Val)) {
+    // Shuffles are used on fixed nodes
+    auto Mask = createInterleaveMask(
+        Val.getValueType().getVectorMinNumElements() / 2, 2);
+    if (Mask == Shuffle->getMask() &&
+        Shuffle->getOperand(0).getOpcode() == ISD::CONCAT_VECTORS)
+      return Shuffle->getOperand(0).getNode();
+    return nullptr;
+  }
+
+  if (Val.getOpcode() != ISD::CONCAT_VECTORS)
+    return nullptr;
+  if (Val.getOperand(0).getNode() != Val.getOperand(1).getNode())
+    return nullptr;
+  if (Val.getOperand(0).getNode()->getOpcode() != ISD::VECTOR_INTERLEAVE)
+    return nullptr;
+  if (Val.getOperand(0).getResNo() != 0 || Val.getOperand(1).getResNo() != 1)
+    return nullptr;
+  return Val.getOperand(0).getNode();
+}
+
 SDValue RISCVTargetLowering::PerformDAGCombine(SDNode *N,
                                                DAGCombinerInfo &DCI) const {
   SelectionDAG &DAG = DCI.DAG;
@@ -10796,6 +10846,7 @@
   case ISD::STORE: {
     auto *Store = cast<StoreSDNode>(N);
     SDValue Val = Store->getValue();
+    SDLoc DL(N);
     // Combine store of vmv.x.s/vfmv.f.s to vse with VL of 1.
     // vfmv.f.s is represented as extract element from 0. Match it late to avoid
     // any illegal types.
@@ -10807,9 +10858,7 @@
       MVT VecVT = Src.getSimpleValueType();
       EVT MemVT = Store->getMemoryVT();
       // VecVT should be scalable and memory VT should match the element type.
-      if (VecVT.isScalableVector() &&
-          MemVT == VecVT.getVectorElementType()) {
-        SDLoc DL(N);
+      if (VecVT.isScalableVector() && MemVT == VecVT.getVectorElementType()) {
         MVT MaskVT = getMaskTypeFor(VecVT);
         return DAG.getStoreVP(
             Store->getChain(), DL, Src, Store->getBasePtr(), Store->getOffset(),
@@ -10819,9 +10868,78 @@
             Store->isTruncatingStore(), /*IsCompress*/ false);
       }
     }
+    // Combine interleaved store of vector_interleave or vector_shuffle into
+    // vsseg2
+    if (auto *Interleave = getVectorInterleaveFromStore(Store)) {
+      if (!Val.getValueType().isSimple())
+        break;
+      MVT VecVT = Val.getSimpleValueType();
+      if (!Store->isSimple() || !ISD::isNormalStore(Store))
+	break;
 
+      MVT ContainerVT = VecVT;
+      SDValue Op0 = Interleave->getOperand(0), Op1 = Interleave->getOperand(1);
+      if (VecVT.isFixedLengthVector()) {
+        ContainerVT = getContainerForFixedLengthVector(VecVT);
+        Op0 = convertToScalableVector(ContainerVT, Op0, DAG, Subtarget);
+        Op1 = convertToScalableVector(ContainerVT, Op1, DAG, Subtarget);
+      }
+
+      // Check that a VSSEG pseudo exists for VecVTs LMUL and SEW
+      unsigned Log2SEW = Log2_32(ContainerVT.getScalarSizeInBits());
+      RISCVII::VLMUL LMUL = RISCVTargetLowering::getLMUL(ContainerVT);
+      const RISCV::VSSEGPseudo *P =
+          RISCV::getVSSEGPseudo(2, /* IsMasked */ false, /*IsStrided */ false,
+                                Log2SEW, static_cast<unsigned>(LMUL));
+      if (!P)
+        break;
+      
+      auto [Mask, VL] = getDefaultVLOps(VecVT, ContainerVT, DL, DAG, Subtarget);
+      SDValue IntID = DAG.getTargetConstant(Intrinsic::riscv_vsseg2, DL,
+                                            Subtarget.getXLenVT());
+      SDValue Ops[] = {Store->getChain(),   IntID, Op0, Op1,
+                       Store->getBasePtr(), VL};
+      SDValue VSSeg2 = DAG.getMemIntrinsicNode(
+          ISD::INTRINSIC_VOID, DL, DAG.getVTList(MVT::Other), Ops,
+          Store->getMemoryVT(), Store->getMemOperand());
+      DAG.makeEquivalentMemoryOrdering(SDValue(Store, 0), VSSeg2);
+      return VSSeg2;
+    }
     break;
   }
+  case ISD::VECTOR_DEINTERLEAVE:
+    if (auto *Load = getLoadFromVectorDeinterleave(N)) {
+      SDLoc DL(Load);
+      EVT VecVT = Load->getValueType(0);
+      if (!VecVT.isSimple())
+        break;
+
+      assert(VecVT.isScalableVector());
+
+      // Check that a VLSEG pseudo exists for VecVTs LMUL and SEW
+      unsigned Log2SEW = Log2_32(VecVT.getScalarSizeInBits());
+      RISCVII::VLMUL LMUL = RISCVTargetLowering::getLMUL(VecVT.getSimpleVT());
+      const RISCV::VLSEGPseudo *P = RISCV::getVLSEGPseudo(
+          2, /* IsMasked */ false, /* IsTU */ false, /*IsStrided */ false,
+          /*FF*/ false, Log2SEW, static_cast<unsigned>(LMUL));
+      if (!P)
+        break;
+
+      SDValue VL = DAG.getRegister(RISCV::X0, Subtarget.getXLenVT());
+      SDValue IntID = DAG.getTargetConstant(Intrinsic::riscv_vlseg2, DL,
+                                            Subtarget.getXLenVT());
+      SDValue Passthru = DAG.getUNDEF(VecVT);
+      SDValue Ops[] = {Load->getChain(),   IntID, Passthru, Passthru,
+                       Load->getBasePtr(), VL};
+      EVT SubVecVT = N->getValueType(0);
+      SDValue VLSeg2 = DAG.getMemIntrinsicNode(
+          ISD::INTRINSIC_W_CHAIN, DL,
+          DAG.getVTList({SubVecVT, SubVecVT, MVT::Other}), Ops, VecVT,
+          Load->getMemOperand());
+      DAG.makeEquivalentMemoryOrdering(SDValue(Load, 1), VLSeg2.getValue(2));
+      return DAG.getMergeValues({VLSeg2.getValue(0), VLSeg2.getValue(1)}, DL);
+    }
+    break;
   case ISD::SPLAT_VECTOR: {
     EVT VT = N->getValueType(0);
     // Only perform this combine on legal MVT types.
diff --git a/llvm/test/CodeGen/RISCV/rvv/vector-deinterleave-combine-load.ll b/llvm/test/CodeGen/RISCV/rvv/vector-deinterleave-combine-load.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/CodeGen/RISCV/rvv/vector-deinterleave-combine-load.ll
@@ -0,0 +1,154 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=riscv32 -mattr=+v,+zfh,+experimental-zvfh | FileCheck %s
+; RUN: llc < %s -mtriple=riscv64 -mattr=+v,+zfh,+experimental-zvfh | FileCheck %s
+
+; Integers
+
+define {<vscale x 16 x i1>, <vscale x 16 x i1>} @vector_deinterleave_load_nxv16i1_nxv32i1(ptr %p) {
+; CHECK-LABEL: vector_deinterleave_load_nxv16i1_nxv32i1:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a1, zero, e8, m4, ta, ma
+; CHECK-NEXT:    vlm.v v8, (a0)
+; CHECK-NEXT:    csrr a0, vlenb
+; CHECK-NEXT:    srli a0, a0, 2
+; CHECK-NEXT:    vsetvli a1, zero, e8, mf2, ta, ma
+; CHECK-NEXT:    vslidedown.vx v0, v8, a0
+; CHECK-NEXT:    vsetvli a0, zero, e8, m2, ta, ma
+; CHECK-NEXT:    vmv.v.i v10, 0
+; CHECK-NEXT:    vmerge.vim v14, v10, 1, v0
+; CHECK-NEXT:    vmv1r.v v0, v8
+; CHECK-NEXT:    vmerge.vim v12, v10, 1, v0
+; CHECK-NEXT:    vnsrl.wi v8, v12, 0
+; CHECK-NEXT:    vmsne.vi v0, v8, 0
+; CHECK-NEXT:    vnsrl.wi v10, v12, 8
+; CHECK-NEXT:    vmsne.vi v8, v10, 0
+; CHECK-NEXT:    ret
+%vec = load <vscale x 32 x i1>, ptr %p
+%retval = call {<vscale x 16 x i1>, <vscale x 16 x i1>} @llvm.experimental.vector.deinterleave2.nxv32i1(<vscale x 32 x i1> %vec)
+ret {<vscale x 16 x i1>, <vscale x 16 x i1>} %retval
+}
+
+define {<vscale x 16 x i8>, <vscale x 16 x i8>} @vector_deinterleave_load_nxv16i8_nxv32i8(ptr %p) {
+; CHECK-LABEL: vector_deinterleave_load_nxv16i8_nxv32i8:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a1, zero, e8, m2, ta, ma
+; CHECK-NEXT:    vlseg2e8.v v8, (a0)
+; CHECK-NEXT:    ret
+%vec = load <vscale x 32 x i8>, ptr %p
+%retval = call {<vscale x 16 x i8>, <vscale x 16 x i8>} @llvm.experimental.vector.deinterleave2.nxv32i8(<vscale x 32 x i8> %vec)
+ret {<vscale x 16 x i8>, <vscale x 16 x i8>} %retval
+}
+
+define {<vscale x 8 x i16>, <vscale x 8 x i16>} @vector_deinterleave_load_nxv8i16_nxv16i16(ptr %p) {
+; CHECK-LABEL: vector_deinterleave_load_nxv8i16_nxv16i16:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a1, zero, e16, m2, ta, ma
+; CHECK-NEXT:    vlseg2e16.v v8, (a0)
+; CHECK-NEXT:    ret
+%vec = load <vscale x 16 x i16>, ptr %p
+%retval = call {<vscale x 8 x i16>, <vscale x 8 x i16>} @llvm.experimental.vector.deinterleave2.nxv16i16(<vscale x 16 x i16> %vec)
+ret {<vscale x 8 x i16>, <vscale x 8 x i16>} %retval
+}
+
+define {<vscale x 4 x i32>, <vscale x 4 x i32>} @vector_deinterleave_load_nxv4i32_nxvv8i32(ptr %p) {
+; CHECK-LABEL: vector_deinterleave_load_nxv4i32_nxvv8i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a1, zero, e32, m2, ta, ma
+; CHECK-NEXT:    vlseg2e32.v v8, (a0)
+; CHECK-NEXT:    ret
+%vec = load <vscale x 8 x i32>, ptr %p
+%retval = call {<vscale x 4 x i32>, <vscale x 4 x i32>} @llvm.experimental.vector.deinterleave2.nxv8i32(<vscale x 8 x i32> %vec)
+ret {<vscale x 4 x i32>, <vscale x 4 x i32>} %retval
+}
+
+define {<vscale x 2 x i64>, <vscale x 2 x i64>} @vector_deinterleave_load_nxv2i64_nxv4i64(ptr %p) {
+; CHECK-LABEL: vector_deinterleave_load_nxv2i64_nxv4i64:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a1, zero, e64, m2, ta, ma
+; CHECK-NEXT:    vlseg2e64.v v8, (a0)
+; CHECK-NEXT:    ret
+%vec = load <vscale x 4 x i64>, ptr %p
+%retval = call {<vscale x 2 x i64>, <vscale x 2 x i64>} @llvm.experimental.vector.deinterleave2.nxv4i64(<vscale x 4 x i64> %vec)
+ret {<vscale x 2 x i64>, <vscale x 2 x i64>} %retval
+}
+
+declare {<vscale x 16 x i1>, <vscale x 16 x i1>} @llvm.experimental.vector.deinterleave2.nxv32i1(<vscale x 32 x i1>)
+declare {<vscale x 16 x i8>, <vscale x 16 x i8>} @llvm.experimental.vector.deinterleave2.nxv32i8(<vscale x 32 x i8>)
+declare {<vscale x 8 x i16>, <vscale x 8 x i16>} @llvm.experimental.vector.deinterleave2.nxv16i16(<vscale x 16 x i16>)
+declare {<vscale x 4 x i32>, <vscale x 4 x i32>} @llvm.experimental.vector.deinterleave2.nxv8i32(<vscale x 8 x i32>)
+declare {<vscale x 2 x i64>, <vscale x 2 x i64>} @llvm.experimental.vector.deinterleave2.nxv4i64(<vscale x 4 x i64>)
+
+; Floats
+
+define {<vscale x 2 x half>, <vscale x 2 x half>} @vector_deinterleave_load_nxv2f16_nxv4f16(ptr %p) {
+; CHECK-LABEL: vector_deinterleave_load_nxv2f16_nxv4f16:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a1, zero, e16, mf2, ta, ma
+; CHECK-NEXT:    vlseg2e16.v v8, (a0)
+; CHECK-NEXT:    ret
+%vec = load <vscale x 4 x half>, ptr %p
+%retval = call {<vscale x 2 x half>, <vscale x 2 x half>} @llvm.experimental.vector.deinterleave2.nxv4f16(<vscale x 4 x half> %vec)
+ret {<vscale x 2 x half>, <vscale x 2 x half>} %retval
+}
+
+define {<vscale x 4 x half>, <vscale x 4 x half>} @vector_deinterleave_load_nxv4f16_nxv8f16(ptr %p) {
+; CHECK-LABEL: vector_deinterleave_load_nxv4f16_nxv8f16:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a1, zero, e16, m1, ta, ma
+; CHECK-NEXT:    vlseg2e16.v v8, (a0)
+; CHECK-NEXT:    ret
+%vec = load <vscale x 8 x half>, ptr %p
+%retval = call {<vscale x 4 x half>, <vscale x 4 x half>} @llvm.experimental.vector.deinterleave2.nxv8f16(<vscale x 8 x half> %vec)
+ret {<vscale x 4 x half>, <vscale x 4 x half>} %retval
+}
+
+define {<vscale x 2 x float>, <vscale x 2 x float>} @vector_deinterleave_load_nxv2f32_nxv4f32(ptr %p) {
+; CHECK-LABEL: vector_deinterleave_load_nxv2f32_nxv4f32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a1, zero, e32, m1, ta, ma
+; CHECK-NEXT:    vlseg2e32.v v8, (a0)
+; CHECK-NEXT:    ret
+%vec = load <vscale x 4 x float>, ptr %p
+%retval = call {<vscale x 2 x float>, <vscale x 2 x float>} @llvm.experimental.vector.deinterleave2.nxv4f32(<vscale x 4 x float> %vec)
+ret {<vscale x 2 x float>, <vscale x 2 x float>} %retval
+}
+
+define {<vscale x 8 x half>, <vscale x 8 x half>} @vector_deinterleave_load_nxv8f16_nxv16f16(ptr %p) {
+; CHECK-LABEL: vector_deinterleave_load_nxv8f16_nxv16f16:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a1, zero, e16, m2, ta, ma
+; CHECK-NEXT:    vlseg2e16.v v8, (a0)
+; CHECK-NEXT:    ret
+%vec = load <vscale x 16 x half>, ptr %p
+%retval = call {<vscale x 8 x half>, <vscale x 8 x half>} @llvm.experimental.vector.deinterleave2.nxv16f16(<vscale x 16 x half> %vec)
+ret {<vscale x 8 x half>, <vscale x 8 x half>} %retval
+}
+
+define {<vscale x 4 x float>, <vscale x 4 x float>} @vector_deinterleave_load_nxv4f32_nxv8f32(ptr %p) {
+; CHECK-LABEL: vector_deinterleave_load_nxv4f32_nxv8f32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a1, zero, e32, m2, ta, ma
+; CHECK-NEXT:    vlseg2e32.v v8, (a0)
+; CHECK-NEXT:    ret
+%vec = load <vscale x 8 x float>, ptr %p
+%retval = call {<vscale x 4 x float>, <vscale x 4 x float>} @llvm.experimental.vector.deinterleave2.nxv8f32(<vscale x 8 x float> %vec)
+ret  {<vscale x 4 x float>, <vscale x 4 x float>} %retval
+}
+
+define {<vscale x 2 x double>, <vscale x 2 x double>} @vector_deinterleave_load_nxv2f64_nxv4f64(ptr %p) {
+; CHECK-LABEL: vector_deinterleave_load_nxv2f64_nxv4f64:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a1, zero, e64, m2, ta, ma
+; CHECK-NEXT:    vlseg2e64.v v8, (a0)
+; CHECK-NEXT:    ret
+%vec = load <vscale x 4 x double>, ptr %p
+%retval = call {<vscale x 2 x double>, <vscale x 2 x double>} @llvm.experimental.vector.deinterleave2.nxv4f64(<vscale x 4 x double> %vec)
+ret {<vscale x 2 x double>, <vscale x 2 x double>} %retval
+}
+
+declare {<vscale x 2 x half>,<vscale x 2 x half>} @llvm.experimental.vector.deinterleave2.nxv4f16(<vscale x 4 x half>)
+declare {<vscale x 4 x half>, <vscale x 4 x half>} @llvm.experimental.vector.deinterleave2.nxv8f16(<vscale x 8 x half>)
+declare {<vscale x 2 x float>, <vscale x 2 x float>} @llvm.experimental.vector.deinterleave2.nxv4f32(<vscale x 4 x float>)
+declare {<vscale x 8 x half>, <vscale x 8 x half>} @llvm.experimental.vector.deinterleave2.nxv16f16(<vscale x 16 x half>)
+declare {<vscale x 4 x float>, <vscale x 4 x float>} @llvm.experimental.vector.deinterleave2.nxv8f32(<vscale x 8 x float>)
+declare {<vscale x 2 x double>, <vscale x 2 x double>} @llvm.experimental.vector.deinterleave2.nxv4f64(<vscale x 4 x double>)
diff --git a/llvm/test/CodeGen/RISCV/rvv/vector-deinterleave-fixed-combine-load.ll b/llvm/test/CodeGen/RISCV/rvv/vector-deinterleave-fixed-combine-load.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/CodeGen/RISCV/rvv/vector-deinterleave-fixed-combine-load.ll
@@ -0,0 +1,182 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=riscv32 -mattr=+v,+zfh,+experimental-zvfh | FileCheck %s
+; RUN: llc < %s -mtriple=riscv64 -mattr=+v,+zfh,+experimental-zvfh | FileCheck %s
+
+; Integers
+
+define {<16 x i1>, <16 x i1>} @vector_deinterleave_load_v16i1_v32i1(ptr %p) {
+%vec = load <32 x i1>, ptr %p
+%retval = call {<16 x i1>, <16 x i1>} @llvm.experimental.vector.deinterleave2.v32i1(<32 x i1> %vec)
+ret {<16 x i1>, <16 x i1>} %retval
+}
+
+define {<16 x i8>, <16 x i8>} @vector_deinterleave_load_v16i8_v32i8(ptr %p) {
+; CHECK-LABEL: vector_deinterleave_load_v16i8_v32i8:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    li a1, 32
+; CHECK-NEXT:    vsetvli zero, a1, e8, m2, ta, ma
+; CHECK-NEXT:    vle8.v v10, (a0)
+; CHECK-NEXT:    vsetivli zero, 16, e8, m1, ta, ma
+; CHECK-NEXT:    vnsrl.wi v8, v10, 0
+; CHECK-NEXT:    vnsrl.wi v9, v10, 8
+; CHECK-NEXT:    ret
+%vec = load <32 x i8>, ptr %p
+%retval = call {<16 x i8>, <16 x i8>} @llvm.experimental.vector.deinterleave2.v32i8(<32 x i8> %vec)
+ret {<16 x i8>, <16 x i8>} %retval
+}
+
+define {<8 x i16>, <8 x i16>} @vector_deinterleave_load_v8i16_v16i16(ptr %p) {
+; CHECK-LABEL: vector_deinterleave_load_v8i16_v16i16:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetivli zero, 16, e16, m2, ta, ma
+; CHECK-NEXT:    vle16.v v10, (a0)
+; CHECK-NEXT:    vsetivli zero, 8, e16, m1, ta, ma
+; CHECK-NEXT:    vnsrl.wi v8, v10, 0
+; CHECK-NEXT:    vnsrl.wi v9, v10, 16
+; CHECK-NEXT:    ret
+%vec = load <16 x i16>, ptr %p
+%retval = call {<8 x i16>, <8 x i16>} @llvm.experimental.vector.deinterleave2.v16i16(<16 x i16> %vec)
+ret {<8 x i16>, <8 x i16>} %retval
+}
+
+define {<4 x i32>, <4 x i32>} @vector_deinterleave_load_v4i32_vv8i32(ptr %p) {
+; CHECK-LABEL: vector_deinterleave_load_v4i32_vv8i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetivli zero, 8, e32, m2, ta, ma
+; CHECK-NEXT:    vle32.v v10, (a0)
+; CHECK-NEXT:    li a0, 32
+; CHECK-NEXT:    vsetivli zero, 4, e32, m1, ta, ma
+; CHECK-NEXT:    vnsrl.wx v9, v10, a0
+; CHECK-NEXT:    vnsrl.wi v8, v10, 0
+; CHECK-NEXT:    ret
+%vec = load <8 x i32>, ptr %p
+%retval = call {<4 x i32>, <4 x i32>} @llvm.experimental.vector.deinterleave2.v8i32(<8 x i32> %vec)
+ret {<4 x i32>, <4 x i32>} %retval
+}
+
+define {<2 x i64>, <2 x i64>} @vector_deinterleave_load_v2i64_v4i64(ptr %p) {
+; CHECK-LABEL: vector_deinterleave_load_v2i64_v4i64:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetivli zero, 4, e64, m2, ta, ma
+; CHECK-NEXT:    vle64.v v10, (a0)
+; CHECK-NEXT:    li a0, 2
+; CHECK-NEXT:    vmv.s.x v0, a0
+; CHECK-NEXT:    vsetivli zero, 2, e64, m2, ta, ma
+; CHECK-NEXT:    vslidedown.vi v12, v10, 2
+; CHECK-NEXT:    vsetivli zero, 2, e64, m1, ta, mu
+; CHECK-NEXT:    vrgather.vi v8, v10, 0
+; CHECK-NEXT:    vrgather.vi v8, v12, 0, v0.t
+; CHECK-NEXT:    vrgather.vi v9, v10, 1
+; CHECK-NEXT:    vrgather.vi v9, v12, 1, v0.t
+; CHECK-NEXT:    ret
+%vec = load <4 x i64>, ptr %p
+%retval = call {<2 x i64>, <2 x i64>} @llvm.experimental.vector.deinterleave2.v4i64(<4 x i64> %vec)
+ret {<2 x i64>, <2 x i64>} %retval
+}
+
+declare {<16 x i1>, <16 x i1>} @llvm.experimental.vector.deinterleave2.v32i1(<32 x i1>)
+declare {<16 x i8>, <16 x i8>} @llvm.experimental.vector.deinterleave2.v32i8(<32 x i8>)
+declare {<8 x i16>, <8 x i16>} @llvm.experimental.vector.deinterleave2.v16i16(<16 x i16>)
+declare {<4 x i32>, <4 x i32>} @llvm.experimental.vector.deinterleave2.v8i32(<8 x i32>)
+declare {<2 x i64>, <2 x i64>} @llvm.experimental.vector.deinterleave2.v4i64(<4 x i64>)
+
+; Floats
+
+define {<2 x half>, <2 x half>} @vector_deinterleave_load_v2f16_v4f16(ptr %p) {
+; CHECK-LABEL: vector_deinterleave_load_v2f16_v4f16:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetivli zero, 4, e16, mf2, ta, ma
+; CHECK-NEXT:    vle16.v v9, (a0)
+; CHECK-NEXT:    vsetivli zero, 2, e16, mf4, ta, ma
+; CHECK-NEXT:    vnsrl.wi v8, v9, 0
+; CHECK-NEXT:    vnsrl.wi v9, v9, 16
+; CHECK-NEXT:    ret
+%vec = load <4 x half>, ptr %p
+%retval = call {<2 x half>, <2 x half>} @llvm.experimental.vector.deinterleave2.v4f16(<4 x half> %vec)
+ret {<2 x half>, <2 x half>} %retval
+}
+
+define {<4 x half>, <4 x half>} @vector_deinterleave_load_v4f16_v8f16(ptr %p) {
+; CHECK-LABEL: vector_deinterleave_load_v4f16_v8f16:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetivli zero, 8, e16, m1, ta, ma
+; CHECK-NEXT:    vle16.v v9, (a0)
+; CHECK-NEXT:    vsetivli zero, 4, e16, mf2, ta, ma
+; CHECK-NEXT:    vnsrl.wi v8, v9, 0
+; CHECK-NEXT:    vnsrl.wi v9, v9, 16
+; CHECK-NEXT:    ret
+%vec = load <8 x half>, ptr %p
+%retval = call {<4 x half>, <4 x half>} @llvm.experimental.vector.deinterleave2.v8f16(<8 x half> %vec)
+ret {<4 x half>, <4 x half>} %retval
+}
+
+define {<2 x float>, <2 x float>} @vector_deinterleave_load_v2f32_v4f32(ptr %p) {
+; CHECK-LABEL: vector_deinterleave_load_v2f32_v4f32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetivli zero, 4, e32, m1, ta, ma
+; CHECK-NEXT:    vle32.v v8, (a0)
+; CHECK-NEXT:    li a0, 32
+; CHECK-NEXT:    vsetivli zero, 2, e32, mf2, ta, ma
+; CHECK-NEXT:    vnsrl.wx v9, v8, a0
+; CHECK-NEXT:    vnsrl.wi v8, v8, 0
+; CHECK-NEXT:    ret
+%vec = load <4 x float>, ptr %p
+%retval = call {<2 x float>, <2 x float>} @llvm.experimental.vector.deinterleave2.v4f32(<4 x float> %vec)
+ret {<2 x float>, <2 x float>} %retval
+}
+
+define {<8 x half>, <8 x half>} @vector_deinterleave_load_v8f16_v16f16(ptr %p) {
+; CHECK-LABEL: vector_deinterleave_load_v8f16_v16f16:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetivli zero, 16, e16, m2, ta, ma
+; CHECK-NEXT:    vle16.v v10, (a0)
+; CHECK-NEXT:    vsetivli zero, 8, e16, m1, ta, ma
+; CHECK-NEXT:    vnsrl.wi v8, v10, 0
+; CHECK-NEXT:    vnsrl.wi v9, v10, 16
+; CHECK-NEXT:    ret
+%vec = load <16 x half>, ptr %p
+%retval = call {<8 x half>, <8 x half>} @llvm.experimental.vector.deinterleave2.v16f16(<16 x half> %vec)
+ret {<8 x half>, <8 x half>} %retval
+}
+
+define {<4 x float>, <4 x float>} @vector_deinterleave_load_v4f32_v8f32(ptr %p) {
+; CHECK-LABEL: vector_deinterleave_load_v4f32_v8f32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetivli zero, 8, e32, m2, ta, ma
+; CHECK-NEXT:    vle32.v v10, (a0)
+; CHECK-NEXT:    li a0, 32
+; CHECK-NEXT:    vsetivli zero, 4, e32, m1, ta, ma
+; CHECK-NEXT:    vnsrl.wx v9, v10, a0
+; CHECK-NEXT:    vnsrl.wi v8, v10, 0
+; CHECK-NEXT:    ret
+%vec = load <8 x float>, ptr %p
+%retval = call {<4 x float>, <4 x float>} @llvm.experimental.vector.deinterleave2.v8f32(<8 x float> %vec)
+ret  {<4 x float>, <4 x float>} %retval
+}
+
+define {<2 x double>, <2 x double>} @vector_deinterleave_load_v2f64_v4f64(ptr %p) {
+; CHECK-LABEL: vector_deinterleave_load_v2f64_v4f64:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetivli zero, 4, e64, m2, ta, ma
+; CHECK-NEXT:    vle64.v v10, (a0)
+; CHECK-NEXT:    li a0, 2
+; CHECK-NEXT:    vmv.s.x v0, a0
+; CHECK-NEXT:    vsetivli zero, 2, e64, m2, ta, ma
+; CHECK-NEXT:    vslidedown.vi v12, v10, 2
+; CHECK-NEXT:    vsetivli zero, 2, e64, m1, ta, mu
+; CHECK-NEXT:    vrgather.vi v8, v10, 0
+; CHECK-NEXT:    vrgather.vi v8, v12, 0, v0.t
+; CHECK-NEXT:    vrgather.vi v9, v10, 1
+; CHECK-NEXT:    vrgather.vi v9, v12, 1, v0.t
+; CHECK-NEXT:    ret
+%vec = load <4 x double>, ptr %p
+%retval = call {<2 x double>, <2 x double>} @llvm.experimental.vector.deinterleave2.v4f64(<4 x double> %vec)
+ret {<2 x double>, <2 x double>} %retval
+}
+
+declare {<2 x half>,<2 x half>} @llvm.experimental.vector.deinterleave2.v4f16(<4 x half>)
+declare {<4 x half>, <4 x half>} @llvm.experimental.vector.deinterleave2.v8f16(<8 x half>)
+declare {<2 x float>, <2 x float>} @llvm.experimental.vector.deinterleave2.v4f32(<4 x float>)
+declare {<8 x half>, <8 x half>} @llvm.experimental.vector.deinterleave2.v16f16(<16 x half>)
+declare {<4 x float>, <4 x float>} @llvm.experimental.vector.deinterleave2.v8f32(<8 x float>)
+declare {<2 x double>, <2 x double>} @llvm.experimental.vector.deinterleave2.v4f64(<4 x double>)
diff --git a/llvm/test/CodeGen/RISCV/rvv/vector-interleave-combine-store.ll b/llvm/test/CodeGen/RISCV/rvv/vector-interleave-combine-store.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/CodeGen/RISCV/rvv/vector-interleave-combine-store.ll
@@ -0,0 +1,165 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=riscv32 -mattr=+v,+zfh,+experimental-zvfh | FileCheck %s
+; RUN: llc < %s -mtriple=riscv64 -mattr=+v,+zfh,+experimental-zvfh | FileCheck %s
+
+; Integers
+
+define void @vector_interleave_store_nxv32i1_nxv16i1(<vscale x 16 x i1> %a, <vscale x 16 x i1> %b, ptr %p) {
+; CHECK-LABEL: vector_interleave_store_nxv32i1_nxv16i1:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vmv1r.v v9, v0
+; CHECK-NEXT:    vsetvli a1, zero, e8, m2, ta, ma
+; CHECK-NEXT:    vmv.v.i v10, 0
+; CHECK-NEXT:    vmv1r.v v0, v8
+; CHECK-NEXT:    vmerge.vim v12, v10, 1, v0
+; CHECK-NEXT:    vmv1r.v v0, v9
+; CHECK-NEXT:    vmerge.vim v8, v10, 1, v0
+; CHECK-NEXT:    vwadd.vv v16, v8, v12
+; CHECK-NEXT:    li a1, -1
+; CHECK-NEXT:    vwmacc.vx v16, a1, v12
+; CHECK-NEXT:    vmsne.vi v8, v18, 0
+; CHECK-NEXT:    vmsne.vi v9, v16, 0
+; CHECK-NEXT:    csrr a1, vlenb
+; CHECK-NEXT:    srli a1, a1, 2
+; CHECK-NEXT:    add a2, a1, a1
+; CHECK-NEXT:    vsetvli zero, a2, e8, mf2, tu, ma
+; CHECK-NEXT:    vslideup.vx v9, v8, a1
+; CHECK-NEXT:    vsetvli a1, zero, e8, m4, ta, ma
+; CHECK-NEXT:    vsm.v v9, (a0)
+; CHECK-NEXT:    ret
+	   %res = call <vscale x 32 x i1> @llvm.experimental.vector.interleave2.nxv32i1(<vscale x 16 x i1> %a, <vscale x 16 x i1> %b)
+ 	   store <vscale x 32 x i1> %res, ptr %p
+	   ret void
+}
+
+define void @vector_interleave_store_nxv16i16_nxv8i16(<vscale x 8 x i16> %a, <vscale x 8 x i16> %b, ptr %p) {
+; CHECK-LABEL: vector_interleave_store_nxv16i16_nxv8i16:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    # kill: def $v10m2 killed $v10m2 killed $v8m2_v10m2 def $v8m2_v10m2
+; CHECK-NEXT:    vsetvli a1, zero, e16, m2, ta, ma
+; CHECK-NEXT:    # kill: def $v8m2 killed $v8m2 killed $v8m2_v10m2 def $v8m2_v10m2
+; CHECK-NEXT:    vsseg2e16.v v8, (a0)
+; CHECK-NEXT:    ret
+	   %res = call <vscale x 16 x i16> @llvm.experimental.vector.interleave2.nxv16i16(<vscale x 8 x i16> %a, <vscale x 8 x i16> %b)
+	   store <vscale x 16 x i16> %res, ptr %p
+	   ret void
+}
+
+define void @vector_interleave_store_nxv8i32_nxv4i32(<vscale x 4 x i32> %a, <vscale x 4 x i32> %b, ptr %p) {
+; CHECK-LABEL: vector_interleave_store_nxv8i32_nxv4i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    # kill: def $v10m2 killed $v10m2 killed $v8m2_v10m2 def $v8m2_v10m2
+; CHECK-NEXT:    vsetvli a1, zero, e32, m2, ta, ma
+; CHECK-NEXT:    # kill: def $v8m2 killed $v8m2 killed $v8m2_v10m2 def $v8m2_v10m2
+; CHECK-NEXT:    vsseg2e32.v v8, (a0)
+; CHECK-NEXT:    ret
+	   %res = call <vscale x 8 x i32> @llvm.experimental.vector.interleave2.nxv8i32(<vscale x 4 x i32> %a, <vscale x 4 x i32> %b)
+	   store <vscale x 8 x i32> %res, ptr %p
+	   ret void
+}
+
+define void @vector_interleave_store_nxv4i64_nxv2i64(<vscale x 2 x i64> %a, <vscale x 2 x i64> %b, ptr %p) {
+; CHECK-LABEL: vector_interleave_store_nxv4i64_nxv2i64:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    # kill: def $v10m2 killed $v10m2 killed $v8m2_v10m2 def $v8m2_v10m2
+; CHECK-NEXT:    vsetvli a1, zero, e64, m2, ta, ma
+; CHECK-NEXT:    # kill: def $v8m2 killed $v8m2 killed $v8m2_v10m2 def $v8m2_v10m2
+; CHECK-NEXT:    vsseg2e64.v v8, (a0)
+; CHECK-NEXT:    ret
+	   %res = call <vscale x 4 x i64> @llvm.experimental.vector.interleave2.nxv4i64(<vscale x 2 x i64> %a, <vscale x 2 x i64> %b)
+	   store <vscale x 4 x i64> %res, ptr %p
+	   ret void
+}
+
+declare <vscale x 32 x i1> @llvm.experimental.vector.interleave2.nxv32i1(<vscale x 16 x i1>, <vscale x 16 x i1>)
+declare <vscale x 16 x i16> @llvm.experimental.vector.interleave2.nxv16i16(<vscale x 8 x i16>, <vscale x 8 x i16>)
+declare <vscale x 8 x i32> @llvm.experimental.vector.interleave2.nxv8i32(<vscale x 4 x i32>, <vscale x 4 x i32>)
+declare <vscale x 4 x i64> @llvm.experimental.vector.interleave2.nxv4i64(<vscale x 2 x i64>, <vscale x 2 x i64>)
+
+; Floats
+
+define void @vector_interleave_store_nxv4f16_nxv2f16(<vscale x 2 x half> %a, <vscale x 2 x half> %b, ptr %p) {
+; CHECK-LABEL: vector_interleave_store_nxv4f16_nxv2f16:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    # kill: def $v9 killed $v9 killed $v8_v9 def $v8_v9
+; CHECK-NEXT:    vsetvli a1, zero, e16, mf2, ta, ma
+; CHECK-NEXT:    # kill: def $v8 killed $v8 killed $v8_v9 def $v8_v9
+; CHECK-NEXT:    vsseg2e16.v v8, (a0)
+; CHECK-NEXT:    ret
+	   %res = call <vscale x 4 x half> @llvm.experimental.vector.interleave2.nxv4f16(<vscale x 2 x half> %a, <vscale x 2 x half> %b)
+	   store <vscale x 4 x half> %res, ptr %p
+	   ret void
+}
+
+define void @vector_interleave_store_nxv8f16_nxv4f16(<vscale x 4 x half> %a, <vscale x 4 x half> %b, ptr %p) {
+; CHECK-LABEL: vector_interleave_store_nxv8f16_nxv4f16:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    # kill: def $v9 killed $v9 killed $v8_v9 def $v8_v9
+; CHECK-NEXT:    vsetvli a1, zero, e16, m1, ta, ma
+; CHECK-NEXT:    # kill: def $v8 killed $v8 killed $v8_v9 def $v8_v9
+; CHECK-NEXT:    vsseg2e16.v v8, (a0)
+; CHECK-NEXT:    ret
+	   %res = call <vscale x 8 x half> @llvm.experimental.vector.interleave2.nxv8f16(<vscale x 4 x half> %a, <vscale x 4 x half> %b)
+	   store <vscale x 8 x half> %res, ptr %p
+	   ret void
+}
+
+define void @vector_interleave_store_nxv4f32_nxv2f32(<vscale x 2 x float> %a, <vscale x 2 x float> %b, ptr %p) {
+; CHECK-LABEL: vector_interleave_store_nxv4f32_nxv2f32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    # kill: def $v9 killed $v9 killed $v8_v9 def $v8_v9
+; CHECK-NEXT:    vsetvli a1, zero, e32, m1, ta, ma
+; CHECK-NEXT:    # kill: def $v8 killed $v8 killed $v8_v9 def $v8_v9
+; CHECK-NEXT:    vsseg2e32.v v8, (a0)
+; CHECK-NEXT:    ret
+	   %res = call <vscale x 4 x float> @llvm.experimental.vector.interleave2.nxv4f32(<vscale x 2 x float> %a, <vscale x 2 x float> %b)
+	   store <vscale x 4 x float> %res, ptr %p
+	   ret void
+}
+
+define void @vector_interleave_store_nxv16f16_nxv8f16(<vscale x 8 x half> %a, <vscale x 8 x half> %b, ptr %p) {
+; CHECK-LABEL: vector_interleave_store_nxv16f16_nxv8f16:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    # kill: def $v10m2 killed $v10m2 killed $v8m2_v10m2 def $v8m2_v10m2
+; CHECK-NEXT:    vsetvli a1, zero, e16, m2, ta, ma
+; CHECK-NEXT:    # kill: def $v8m2 killed $v8m2 killed $v8m2_v10m2 def $v8m2_v10m2
+; CHECK-NEXT:    vsseg2e16.v v8, (a0)
+; CHECK-NEXT:    ret
+	   %res = call <vscale x 16 x half> @llvm.experimental.vector.interleave2.nxv16f16(<vscale x 8 x half> %a, <vscale x 8 x half> %b)
+	   store <vscale x 16 x half> %res, ptr %p
+	   ret void
+}
+
+define void @vector_interleave_store_nxv8f32_nxv4f32(<vscale x 4 x float> %a, <vscale x 4 x float> %b, ptr %p) {
+; CHECK-LABEL: vector_interleave_store_nxv8f32_nxv4f32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    # kill: def $v10m2 killed $v10m2 killed $v8m2_v10m2 def $v8m2_v10m2
+; CHECK-NEXT:    vsetvli a1, zero, e32, m2, ta, ma
+; CHECK-NEXT:    # kill: def $v8m2 killed $v8m2 killed $v8m2_v10m2 def $v8m2_v10m2
+; CHECK-NEXT:    vsseg2e32.v v8, (a0)
+; CHECK-NEXT:    ret
+	   %res = call <vscale x 8 x float> @llvm.experimental.vector.interleave2.nxv8f32(<vscale x 4 x float> %a, <vscale x 4 x float> %b)
+	   store <vscale x 8 x float> %res, ptr %p
+	   ret void
+}
+
+define void @vector_interleave_store_nxv4f64_nxv2f64(<vscale x 2 x double> %a, <vscale x 2 x double> %b, ptr %p) {
+; CHECK-LABEL: vector_interleave_store_nxv4f64_nxv2f64:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    # kill: def $v10m2 killed $v10m2 killed $v8m2_v10m2 def $v8m2_v10m2
+; CHECK-NEXT:    vsetvli a1, zero, e64, m2, ta, ma
+; CHECK-NEXT:    # kill: def $v8m2 killed $v8m2 killed $v8m2_v10m2 def $v8m2_v10m2
+; CHECK-NEXT:    vsseg2e64.v v8, (a0)
+; CHECK-NEXT:    ret
+	   %res = call <vscale x 4 x double> @llvm.experimental.vector.interleave2.nxv4f64(<vscale x 2 x double> %a, <vscale x 2 x double> %b)
+	   store <vscale x 4 x double> %res, ptr %p
+	   ret void
+}
+
+
+declare <vscale x 4 x half> @llvm.experimental.vector.interleave2.nxv4f16(<vscale x 2 x half>, <vscale x 2 x half>)
+declare <vscale x 8 x half> @llvm.experimental.vector.interleave2.nxv8f16(<vscale x 4 x half>, <vscale x 4 x half>)
+declare <vscale x 4 x float> @llvm.experimental.vector.interleave2.nxv4f32(<vscale x 2 x float>, <vscale x 2 x float>)
+declare <vscale x 16 x half> @llvm.experimental.vector.interleave2.nxv16f16(<vscale x 8 x half>, <vscale x 8 x half>)
+declare <vscale x 8 x float> @llvm.experimental.vector.interleave2.nxv8f32(<vscale x 4 x float>, <vscale x 4 x float>)
+declare <vscale x 4 x double> @llvm.experimental.vector.interleave2.nxv4f64(<vscale x 2 x double>, <vscale x 2 x double>)
diff --git a/llvm/test/CodeGen/RISCV/rvv/vector-interleave-fixed-combine-store.ll b/llvm/test/CodeGen/RISCV/rvv/vector-interleave-fixed-combine-store.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/CodeGen/RISCV/rvv/vector-interleave-fixed-combine-store.ll
@@ -0,0 +1,143 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=riscv32 -mattr=+v,+zfh,+experimental-zvfh | FileCheck %s
+; RUN: llc < %s -mtriple=riscv64 -mattr=+v,+zfh,+experimental-zvfh | FileCheck %s
+
+; Integers
+
+define void @vector_interleave_store_v32i1_v16i1(<16 x i1> %a, <16 x i1> %b, ptr %p) {
+	   %res = call <32 x i1> @llvm.experimental.vector.interleave2.v32i1(<16 x i1> %a, <16 x i1> %b)
+ 	   store <32 x i1> %res, ptr %p
+	   ret void
+}
+
+define void @vector_interleave_store_v16i16_v8i16(<8 x i16> %a, <8 x i16> %b, ptr %p) {
+; CHECK-LABEL: vector_interleave_store_v16i16_v8i16:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vmv1r.v v12, v9
+; CHECK-NEXT:    vsetivli zero, 16, e16, m2, ta, ma
+; CHECK-NEXT:    vmv1r.v v10, v8
+; CHECK-NEXT:    vsseg2e16.v v10, (a0)
+; CHECK-NEXT:    ret
+	   %res = call <16 x i16> @llvm.experimental.vector.interleave2.v16i16(<8 x i16> %a, <8 x i16> %b)
+	   store <16 x i16> %res, ptr %p
+	   ret void
+}
+
+define void @vector_interleave_store_v8i32_v4i32(<4 x i32> %a, <4 x i32> %b, ptr %p) {
+; CHECK-LABEL: vector_interleave_store_v8i32_v4i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vmv1r.v v12, v9
+; CHECK-NEXT:    vsetivli zero, 8, e32, m2, ta, ma
+; CHECK-NEXT:    vmv1r.v v10, v8
+; CHECK-NEXT:    vsseg2e32.v v10, (a0)
+; CHECK-NEXT:    ret
+	   %res = call <8 x i32> @llvm.experimental.vector.interleave2.v8i32(<4 x i32> %a, <4 x i32> %b)
+	   store <8 x i32> %res, ptr %p
+	   ret void
+}
+
+define void @vector_interleave_store_v4i64_v2i64(<2 x i64> %a, <2 x i64> %b, ptr %p) {
+; CHECK-LABEL: vector_interleave_store_v4i64_v2i64:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vmv1r.v v12, v9
+; CHECK-NEXT:    vsetivli zero, 4, e64, m2, ta, ma
+; CHECK-NEXT:    vmv1r.v v10, v8
+; CHECK-NEXT:    vsseg2e64.v v10, (a0)
+; CHECK-NEXT:    ret
+	   %res = call <4 x i64> @llvm.experimental.vector.interleave2.v4i64(<2 x i64> %a, <2 x i64> %b)
+	   store <4 x i64> %res, ptr %p
+	   ret void
+}
+
+declare <32 x i1> @llvm.experimental.vector.interleave2.v32i1(<16 x i1>, <16 x i1>)
+declare <16 x i16> @llvm.experimental.vector.interleave2.v16i16(<8 x i16>, <8 x i16>)
+declare <8 x i32> @llvm.experimental.vector.interleave2.v8i32(<4 x i32>, <4 x i32>)
+declare <4 x i64> @llvm.experimental.vector.interleave2.v4i64(<2 x i64>, <2 x i64>)
+
+; Floats
+
+define void @vector_interleave_store_v4f16_v2f16(<2 x half> %a, <2 x half> %b, ptr %p) {
+; CHECK-LABEL: vector_interleave_store_v4f16_v2f16:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    # kill: def $v9 killed $v9 killed $v8_v9 def $v8_v9
+; CHECK-NEXT:    vsetivli zero, 4, e16, mf2, ta, ma
+; CHECK-NEXT:    # kill: def $v8 killed $v8 killed $v8_v9 def $v8_v9
+; CHECK-NEXT:    vsseg2e16.v v8, (a0)
+; CHECK-NEXT:    ret
+	   %res = call <4 x half> @llvm.experimental.vector.interleave2.v4f16(<2 x half> %a, <2 x half> %b)
+	   store <4 x half> %res, ptr %p
+	   ret void
+}
+
+define void @vector_interleave_store_v8f16_v4f16(<4 x half> %a, <4 x half> %b, ptr %p) {
+; CHECK-LABEL: vector_interleave_store_v8f16_v4f16:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    # kill: def $v9 killed $v9 killed $v8_v9 def $v8_v9
+; CHECK-NEXT:    vsetivli zero, 8, e16, m1, ta, ma
+; CHECK-NEXT:    # kill: def $v8 killed $v8 killed $v8_v9 def $v8_v9
+; CHECK-NEXT:    vsseg2e16.v v8, (a0)
+; CHECK-NEXT:    ret
+	   %res = call <8 x half> @llvm.experimental.vector.interleave2.v8f16(<4 x half> %a, <4 x half> %b)
+	   store <8 x half> %res, ptr %p
+	   ret void
+}
+
+define void @vector_interleave_store_v4f32_v2f32(<2 x float> %a, <2 x float> %b, ptr %p) {
+; CHECK-LABEL: vector_interleave_store_v4f32_v2f32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    # kill: def $v9 killed $v9 killed $v8_v9 def $v8_v9
+; CHECK-NEXT:    vsetivli zero, 4, e32, m1, ta, ma
+; CHECK-NEXT:    # kill: def $v8 killed $v8 killed $v8_v9 def $v8_v9
+; CHECK-NEXT:    vsseg2e32.v v8, (a0)
+; CHECK-NEXT:    ret
+	   %res = call <4 x float> @llvm.experimental.vector.interleave2.v4f32(<2 x float> %a, <2 x float> %b)
+	   store <4 x float> %res, ptr %p
+	   ret void
+}
+
+define void @vector_interleave_store_v16f16_v8f16(<8 x half> %a, <8 x half> %b, ptr %p) {
+; CHECK-LABEL: vector_interleave_store_v16f16_v8f16:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vmv1r.v v12, v9
+; CHECK-NEXT:    vsetivli zero, 16, e16, m2, ta, ma
+; CHECK-NEXT:    vmv1r.v v10, v8
+; CHECK-NEXT:    vsseg2e16.v v10, (a0)
+; CHECK-NEXT:    ret
+	   %res = call <16 x half> @llvm.experimental.vector.interleave2.v16f16(<8 x half> %a, <8 x half> %b)
+	   store <16 x half> %res, ptr %p
+	   ret void
+}
+
+define void @vector_interleave_store_v8f32_v4f32(<4 x float> %a, <4 x float> %b, ptr %p) {
+; CHECK-LABEL: vector_interleave_store_v8f32_v4f32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vmv1r.v v12, v9
+; CHECK-NEXT:    vsetivli zero, 8, e32, m2, ta, ma
+; CHECK-NEXT:    vmv1r.v v10, v8
+; CHECK-NEXT:    vsseg2e32.v v10, (a0)
+; CHECK-NEXT:    ret
+	   %res = call <8 x float> @llvm.experimental.vector.interleave2.v8f32(<4 x float> %a, <4 x float> %b)
+	   store <8 x float> %res, ptr %p
+	   ret void
+}
+
+define void @vector_interleave_store_v4f64_v2f64(<2 x double> %a, <2 x double> %b, ptr %p) {
+; CHECK-LABEL: vector_interleave_store_v4f64_v2f64:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vmv1r.v v12, v9
+; CHECK-NEXT:    vsetivli zero, 4, e64, m2, ta, ma
+; CHECK-NEXT:    vmv1r.v v10, v8
+; CHECK-NEXT:    vsseg2e64.v v10, (a0)
+; CHECK-NEXT:    ret
+	   %res = call <4 x double> @llvm.experimental.vector.interleave2.v4f64(<2 x double> %a, <2 x double> %b)
+	   store <4 x double> %res, ptr %p
+	   ret void
+}
+
+
+declare <4 x half> @llvm.experimental.vector.interleave2.v4f16(<2 x half>, <2 x half>)
+declare <8 x half> @llvm.experimental.vector.interleave2.v8f16(<4 x half>, <4 x half>)
+declare <4 x float> @llvm.experimental.vector.interleave2.v4f32(<2 x float>, <2 x float>)
+declare <16 x half> @llvm.experimental.vector.interleave2.v16f16(<8 x half>, <8 x half>)
+declare <8 x float> @llvm.experimental.vector.interleave2.v8f32(<4 x float>, <4 x float>)
+declare <4 x double> @llvm.experimental.vector.interleave2.v4f64(<2 x double>, <2 x double>)