diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
--- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -8516,10 +8516,35 @@
   // Both operands must be equivalent extend nodes.
   SDValue LeftOp = ShiftOperand.getOperand(0);
   SDValue RightOp = ShiftOperand.getOperand(1);
+  ConstantSDNode *LeftConstant = isConstOrConstSplat(LeftOp);
+  ConstantSDNode *RightConstant = isConstOrConstSplat(RightOp);
+
+  if (LeftConstant && RightConstant)
+    return SDValue();
+
+  bool HasConstant = LeftConstant || RightConstant;
+
+  if (HasConstant) {
+    SDValue ExtOp = LeftConstant ? RightOp : LeftOp;
+    SDValue ConstantOp = LeftConstant ? LeftOp : RightOp;
+    if (ExtOp.getOpcode() != ISD::SIGN_EXTEND &&
+        ExtOp.getOpcode() != ISD::ZERO_EXTEND)
+      return SDValue();
+    unsigned NarrowVTBits =
+        ExtOp.getOperand(0).getValueType().getScalarSizeInBits();
+    unsigned ActiveBits =
+        isConstOrConstSplat(ConstantOp)->getAPIntValue().getActiveBits();
+    if (ActiveBits > NarrowVTBits)
+      return SDValue();
+    LeftOp = ExtOp;
+    RightOp = ConstantOp;
+  }
+
   bool IsSignExt = LeftOp.getOpcode() == ISD::SIGN_EXTEND;
   bool IsZeroExt = LeftOp.getOpcode() == ISD::ZERO_EXTEND;
 
-  if ((!(IsSignExt || IsZeroExt)) || LeftOp.getOpcode() != RightOp.getOpcode())
+  if ((!(IsSignExt || IsZeroExt)) ||
+      (!HasConstant && LeftOp.getOpcode() != RightOp.getOpcode()))
     return SDValue();
 
   EVT WideVT1 = LeftOp.getValueType();
@@ -8531,7 +8556,7 @@
 
   EVT NarrowVT = LeftOp.getOperand(0).getValueType();
   // Check that the two extend nodes are the same type.
-  if (NarrowVT !=  RightOp.getOperand(0).getValueType())
+  if (!HasConstant && (NarrowVT != RightOp.getOperand(0).getValueType()))
     return SDValue();
 
   // Proceed with the transformation if the wide type is twice as large
@@ -8555,8 +8580,12 @@
   if (!TLI.isOperationLegalOrCustom(MulhOpcode, NarrowVT))
     return SDValue();
 
-  SDValue Result = DAG.getNode(MulhOpcode, DL, NarrowVT, LeftOp.getOperand(0),
-                               RightOp.getOperand(0));
+  SDValue Result =
+      HasConstant
+          ? DAG.getNode(MulhOpcode, DL, NarrowVT, LeftOp.getOperand(0),
+                        DAG.getNode(ISD::TRUNCATE, DL, NarrowVT, RightOp))
+          : DAG.getNode(MulhOpcode, DL, NarrowVT, LeftOp.getOperand(0),
+                        RightOp.getOperand(0));
   return (N->getOpcode() == ISD::SRA ? DAG.getSExtOrTrunc(Result, DL, WideVT1)
                                      : DAG.getZExtOrTrunc(Result, DL, WideVT1));
 }
diff --git a/llvm/test/CodeGen/RISCV/rvv/vmulh-sdnode-rv32.ll b/llvm/test/CodeGen/RISCV/rvv/vmulh-sdnode-rv32.ll
--- a/llvm/test/CodeGen/RISCV/rvv/vmulh-sdnode-rv32.ll
+++ b/llvm/test/CodeGen/RISCV/rvv/vmulh-sdnode-rv32.ll
@@ -23,3 +23,311 @@
   %cc = icmp eq <vscale x 4 x i8> %rem, zeroinitializer
   ret <vscale x 4 x i1> %cc
 }
+
+define <vscale x 1 x i32> @vmulh_vv_nxv1i32(<vscale x 1 x i32> %va, <vscale x 1 x i32> %vb) {
+; CHECK-LABEL: vmulh_vv_nxv1i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a0, zero, e32, mf2, ta, mu
+; CHECK-NEXT:    vmulh.vv v8, v9, v8
+; CHECK-NEXT:    ret
+  %vc = sext <vscale x 1 x i32> %vb to <vscale x 1 x i64>
+  %vd = sext <vscale x 1 x i32> %va to <vscale x 1 x i64>
+  %ve = mul <vscale x 1 x i64> %vc, %vd
+  %head = insertelement <vscale x 1 x i64> undef, i64 32, i32 0
+  %splat = shufflevector <vscale x 1 x i64> %head, <vscale x 1 x i64> undef, <vscale x 1 x i32> zeroinitializer
+  %vf = lshr <vscale x 1 x i64> %ve, %splat
+  %vg = trunc <vscale x 1 x i64> %vf to <vscale x 1 x i32>
+  ret <vscale x 1 x i32> %vg
+}
+
+define <vscale x 1 x i32> @vmulh_vx_nxv1i32(<vscale x 1 x i32> %va, i32 %x) {
+; CHECK-LABEL: vmulh_vx_nxv1i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a1, zero, e32, mf2, ta, mu
+; CHECK-NEXT:    vmulh.vx v8, v8, a0
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 1 x i32> undef, i32 %x, i32 0
+  %splat1 = shufflevector <vscale x 1 x i32> %head1, <vscale x 1 x i32> undef, <vscale x 1 x i32> zeroinitializer
+  %vb = sext <vscale x 1 x i32> %splat1 to <vscale x 1 x i64>
+  %vc = sext <vscale x 1 x i32> %va to <vscale x 1 x i64>
+  %vd = mul <vscale x 1 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 1 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 1 x i64> %head2, <vscale x 1 x i64> undef, <vscale x 1 x i32> zeroinitializer
+  %ve = lshr <vscale x 1 x i64> %vd, %splat2
+  %vf = trunc <vscale x 1 x i64> %ve to <vscale x 1 x i32>
+  ret <vscale x 1 x i32> %vf
+}
+
+define <vscale x 1 x i32> @vmulh_vi_nxv1i32_0(<vscale x 1 x i32> %va) {
+; CHECK-LABEL: vmulh_vi_nxv1i32_0:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a0, zero, e64, m1, ta, mu
+; CHECK-NEXT:    vsext.vf2 v25, v8
+; CHECK-NEXT:    addi a0, zero, -7
+; CHECK-NEXT:    vmul.vx v25, v25, a0
+; CHECK-NEXT:    addi a0, zero, 32
+; CHECK-NEXT:    vsrl.vx v25, v25, a0
+; CHECK-NEXT:    vsetvli zero, zero, e32, mf2, ta, mu
+; CHECK-NEXT:    vnsrl.wi v8, v25, 0
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 1 x i32> undef, i32 -7, i32 0
+  %splat1 = shufflevector <vscale x 1 x i32> %head1, <vscale x 1 x i32> undef, <vscale x 1 x i32> zeroinitializer
+  %vb = sext <vscale x 1 x i32> %splat1 to <vscale x 1 x i64>
+  %vc = sext <vscale x 1 x i32> %va to <vscale x 1 x i64>
+  %vd = mul <vscale x 1 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 1 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 1 x i64> %head2, <vscale x 1 x i64> undef, <vscale x 1 x i32> zeroinitializer
+  %ve = lshr <vscale x 1 x i64> %vd, %splat2
+  %vf = trunc <vscale x 1 x i64> %ve to <vscale x 1 x i32>
+  ret <vscale x 1 x i32> %vf
+}
+
+define <vscale x 1 x i32> @vmulh_vi_nxv1i32_1(<vscale x 1 x i32> %va) {
+; CHECK-LABEL: vmulh_vi_nxv1i32_1:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    addi a0, zero, 16
+; CHECK-NEXT:    vsetvli a1, zero, e32, mf2, ta, mu
+; CHECK-NEXT:    vmulh.vx v8, v8, a0
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 1 x i32> undef, i32 16, i32 0
+  %splat1 = shufflevector <vscale x 1 x i32> %head1, <vscale x 1 x i32> undef, <vscale x 1 x i32> zeroinitializer
+  %vb = sext <vscale x 1 x i32> %splat1 to <vscale x 1 x i64>
+  %vc = sext <vscale x 1 x i32> %va to <vscale x 1 x i64>
+  %vd = mul <vscale x 1 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 1 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 1 x i64> %head2, <vscale x 1 x i64> undef, <vscale x 1 x i32> zeroinitializer
+  %ve = lshr <vscale x 1 x i64> %vd, %splat2
+  %vf = trunc <vscale x 1 x i64> %ve to <vscale x 1 x i32>
+  ret <vscale x 1 x i32> %vf
+}
+
+define <vscale x 2 x i32> @vmulh_vv_nxv2i32(<vscale x 2 x i32> %va, <vscale x 2 x i32> %vb) {
+; CHECK-LABEL: vmulh_vv_nxv2i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a0, zero, e32, m1, ta, mu
+; CHECK-NEXT:    vmulh.vv v8, v9, v8
+; CHECK-NEXT:    ret
+  %vc = sext <vscale x 2 x i32> %vb to <vscale x 2 x i64>
+  %vd = sext <vscale x 2 x i32> %va to <vscale x 2 x i64>
+  %ve = mul <vscale x 2 x i64> %vc, %vd
+  %head = insertelement <vscale x 2 x i64> undef, i64 32, i32 0
+  %splat = shufflevector <vscale x 2 x i64> %head, <vscale x 2 x i64> undef, <vscale x 2 x i32> zeroinitializer
+  %vf = lshr <vscale x 2 x i64> %ve, %splat
+  %vg = trunc <vscale x 2 x i64> %vf to <vscale x 2 x i32>
+  ret <vscale x 2 x i32> %vg
+}
+
+define <vscale x 2 x i32> @vmulh_vx_nxv2i32(<vscale x 2 x i32> %va, i32 %x) {
+; CHECK-LABEL: vmulh_vx_nxv2i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a1, zero, e32, m1, ta, mu
+; CHECK-NEXT:    vmulh.vx v8, v8, a0
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 2 x i32> undef, i32 %x, i32 0
+  %splat1 = shufflevector <vscale x 2 x i32> %head1, <vscale x 2 x i32> undef, <vscale x 2 x i32> zeroinitializer
+  %vb = sext <vscale x 2 x i32> %splat1 to <vscale x 2 x i64>
+  %vc = sext <vscale x 2 x i32> %va to <vscale x 2 x i64>
+  %vd = mul <vscale x 2 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 2 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 2 x i64> %head2, <vscale x 2 x i64> undef, <vscale x 2 x i32> zeroinitializer
+  %ve = lshr <vscale x 2 x i64> %vd, %splat2
+  %vf = trunc <vscale x 2 x i64> %ve to <vscale x 2 x i32>
+  ret <vscale x 2 x i32> %vf
+}
+
+define <vscale x 2 x i32> @vmulh_vi_nxv2i32_0(<vscale x 2 x i32> %va) {
+; CHECK-LABEL: vmulh_vi_nxv2i32_0:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a0, zero, e64, m2, ta, mu
+; CHECK-NEXT:    vsext.vf2 v26, v8
+; CHECK-NEXT:    addi a0, zero, -7
+; CHECK-NEXT:    vmul.vx v26, v26, a0
+; CHECK-NEXT:    addi a0, zero, 32
+; CHECK-NEXT:    vsrl.vx v26, v26, a0
+; CHECK-NEXT:    vsetvli zero, zero, e32, m1, ta, mu
+; CHECK-NEXT:    vnsrl.wi v8, v26, 0
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 2 x i32> undef, i32 -7, i32 0
+  %splat1 = shufflevector <vscale x 2 x i32> %head1, <vscale x 2 x i32> undef, <vscale x 2 x i32> zeroinitializer
+  %vb = sext <vscale x 2 x i32> %splat1 to <vscale x 2 x i64>
+  %vc = sext <vscale x 2 x i32> %va to <vscale x 2 x i64>
+  %vd = mul <vscale x 2 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 2 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 2 x i64> %head2, <vscale x 2 x i64> undef, <vscale x 2 x i32> zeroinitializer
+  %ve = lshr <vscale x 2 x i64> %vd, %splat2
+  %vf = trunc <vscale x 2 x i64> %ve to <vscale x 2 x i32>
+  ret <vscale x 2 x i32> %vf
+}
+
+define <vscale x 2 x i32> @vmulh_vi_nxv2i32_1(<vscale x 2 x i32> %va) {
+; CHECK-LABEL: vmulh_vi_nxv2i32_1:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    addi a0, zero, 16
+; CHECK-NEXT:    vsetvli a1, zero, e32, m1, ta, mu
+; CHECK-NEXT:    vmulh.vx v8, v8, a0
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 2 x i32> undef, i32 16, i32 0
+  %splat1 = shufflevector <vscale x 2 x i32> %head1, <vscale x 2 x i32> undef, <vscale x 2 x i32> zeroinitializer
+  %vb = sext <vscale x 2 x i32> %splat1 to <vscale x 2 x i64>
+  %vc = sext <vscale x 2 x i32> %va to <vscale x 2 x i64>
+  %vd = mul <vscale x 2 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 2 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 2 x i64> %head2, <vscale x 2 x i64> undef, <vscale x 2 x i32> zeroinitializer
+  %ve = lshr <vscale x 2 x i64> %vd, %splat2
+  %vf = trunc <vscale x 2 x i64> %ve to <vscale x 2 x i32>
+  ret <vscale x 2 x i32> %vf
+}
+
+define <vscale x 4 x i32> @vmulh_vv_nxv4i32(<vscale x 4 x i32> %va, <vscale x 4 x i32> %vb) {
+; CHECK-LABEL: vmulh_vv_nxv4i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a0, zero, e32, m2, ta, mu
+; CHECK-NEXT:    vmulh.vv v8, v10, v8
+; CHECK-NEXT:    ret
+  %vc = sext <vscale x 4 x i32> %vb to <vscale x 4 x i64>
+  %vd = sext <vscale x 4 x i32> %va to <vscale x 4 x i64>
+  %ve = mul <vscale x 4 x i64> %vc, %vd
+  %head = insertelement <vscale x 4 x i64> undef, i64 32, i32 0
+  %splat = shufflevector <vscale x 4 x i64> %head, <vscale x 4 x i64> undef, <vscale x 4 x i32> zeroinitializer
+  %vf = lshr <vscale x 4 x i64> %ve, %splat
+  %vg = trunc <vscale x 4 x i64> %vf to <vscale x 4 x i32>
+  ret <vscale x 4 x i32> %vg
+}
+
+define <vscale x 4 x i32> @vmulh_vx_nxv4i32(<vscale x 4 x i32> %va, i32 %x) {
+; CHECK-LABEL: vmulh_vx_nxv4i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a1, zero, e32, m2, ta, mu
+; CHECK-NEXT:    vmulh.vx v8, v8, a0
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 4 x i32> undef, i32 %x, i32 0
+  %splat1 = shufflevector <vscale x 4 x i32> %head1, <vscale x 4 x i32> undef, <vscale x 4 x i32> zeroinitializer
+  %vb = sext <vscale x 4 x i32> %splat1 to <vscale x 4 x i64>
+  %vc = sext <vscale x 4 x i32> %va to <vscale x 4 x i64>
+  %vd = mul <vscale x 4 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 4 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 4 x i64> %head2, <vscale x 4 x i64> undef, <vscale x 4 x i32> zeroinitializer
+  %ve = lshr <vscale x 4 x i64> %vd, %splat2
+  %vf = trunc <vscale x 4 x i64> %ve to <vscale x 4 x i32>
+  ret <vscale x 4 x i32> %vf
+}
+
+define <vscale x 4 x i32> @vmulh_vi_nxv4i32_0(<vscale x 4 x i32> %va) {
+; CHECK-LABEL: vmulh_vi_nxv4i32_0:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a0, zero, e64, m4, ta, mu
+; CHECK-NEXT:    vsext.vf2 v28, v8
+; CHECK-NEXT:    addi a0, zero, -7
+; CHECK-NEXT:    vmul.vx v28, v28, a0
+; CHECK-NEXT:    addi a0, zero, 32
+; CHECK-NEXT:    vsrl.vx v28, v28, a0
+; CHECK-NEXT:    vsetvli zero, zero, e32, m2, ta, mu
+; CHECK-NEXT:    vnsrl.wi v8, v28, 0
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 4 x i32> undef, i32 -7, i32 0
+  %splat1 = shufflevector <vscale x 4 x i32> %head1, <vscale x 4 x i32> undef, <vscale x 4 x i32> zeroinitializer
+  %vb = sext <vscale x 4 x i32> %splat1 to <vscale x 4 x i64>
+  %vc = sext <vscale x 4 x i32> %va to <vscale x 4 x i64>
+  %vd = mul <vscale x 4 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 4 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 4 x i64> %head2, <vscale x 4 x i64> undef, <vscale x 4 x i32> zeroinitializer
+  %ve = lshr <vscale x 4 x i64> %vd, %splat2
+  %vf = trunc <vscale x 4 x i64> %ve to <vscale x 4 x i32>
+  ret <vscale x 4 x i32> %vf
+}
+
+define <vscale x 4 x i32> @vmulh_vi_nxv4i32_1(<vscale x 4 x i32> %va) {
+; CHECK-LABEL: vmulh_vi_nxv4i32_1:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    addi a0, zero, 16
+; CHECK-NEXT:    vsetvli a1, zero, e32, m2, ta, mu
+; CHECK-NEXT:    vmulh.vx v8, v8, a0
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 4 x i32> undef, i32 16, i32 0
+  %splat1 = shufflevector <vscale x 4 x i32> %head1, <vscale x 4 x i32> undef, <vscale x 4 x i32> zeroinitializer
+  %vb = sext <vscale x 4 x i32> %splat1 to <vscale x 4 x i64>
+  %vc = sext <vscale x 4 x i32> %va to <vscale x 4 x i64>
+  %vd = mul <vscale x 4 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 4 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 4 x i64> %head2, <vscale x 4 x i64> undef, <vscale x 4 x i32> zeroinitializer
+  %ve = lshr <vscale x 4 x i64> %vd, %splat2
+  %vf = trunc <vscale x 4 x i64> %ve to <vscale x 4 x i32>
+  ret <vscale x 4 x i32> %vf
+}
+
+define <vscale x 8 x i32> @vmulh_vv_nxv8i32(<vscale x 8 x i32> %va, <vscale x 8 x i32> %vb) {
+; CHECK-LABEL: vmulh_vv_nxv8i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a0, zero, e32, m4, ta, mu
+; CHECK-NEXT:    vmulh.vv v8, v12, v8
+; CHECK-NEXT:    ret
+  %vc = sext <vscale x 8 x i32> %vb to <vscale x 8 x i64>
+  %vd = sext <vscale x 8 x i32> %va to <vscale x 8 x i64>
+  %ve = mul <vscale x 8 x i64> %vc, %vd
+  %head = insertelement <vscale x 8 x i64> undef, i64 32, i32 0
+  %splat = shufflevector <vscale x 8 x i64> %head, <vscale x 8 x i64> undef, <vscale x 8 x i32> zeroinitializer
+  %vf = lshr <vscale x 8 x i64> %ve, %splat
+  %vg = trunc <vscale x 8 x i64> %vf to <vscale x 8 x i32>
+  ret <vscale x 8 x i32> %vg
+}
+
+define <vscale x 8 x i32> @vmulh_vx_nxv8i32(<vscale x 8 x i32> %va, i32 %x) {
+; CHECK-LABEL: vmulh_vx_nxv8i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a1, zero, e32, m4, ta, mu
+; CHECK-NEXT:    vmulh.vx v8, v8, a0
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 8 x i32> undef, i32 %x, i32 0
+  %splat1 = shufflevector <vscale x 8 x i32> %head1, <vscale x 8 x i32> undef, <vscale x 8 x i32> zeroinitializer
+  %vb = sext <vscale x 8 x i32> %splat1 to <vscale x 8 x i64>
+  %vc = sext <vscale x 8 x i32> %va to <vscale x 8 x i64>
+  %vd = mul <vscale x 8 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 8 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 8 x i64> %head2, <vscale x 8 x i64> undef, <vscale x 8 x i32> zeroinitializer
+  %ve = lshr <vscale x 8 x i64> %vd, %splat2
+  %vf = trunc <vscale x 8 x i64> %ve to <vscale x 8 x i32>
+  ret <vscale x 8 x i32> %vf
+}
+
+define <vscale x 8 x i32> @vmulh_vi_nxv8i32_0(<vscale x 8 x i32> %va) {
+; CHECK-LABEL: vmulh_vi_nxv8i32_0:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a0, zero, e64, m8, ta, mu
+; CHECK-NEXT:    vsext.vf2 v16, v8
+; CHECK-NEXT:    addi a0, zero, -7
+; CHECK-NEXT:    vmul.vx v8, v16, a0
+; CHECK-NEXT:    addi a0, zero, 32
+; CHECK-NEXT:    vsrl.vx v16, v8, a0
+; CHECK-NEXT:    vsetvli zero, zero, e32, m4, ta, mu
+; CHECK-NEXT:    vnsrl.wi v8, v16, 0
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 8 x i32> undef, i32 -7, i32 0
+  %splat1 = shufflevector <vscale x 8 x i32> %head1, <vscale x 8 x i32> undef, <vscale x 8 x i32> zeroinitializer
+  %vb = sext <vscale x 8 x i32> %splat1 to <vscale x 8 x i64>
+  %vc = sext <vscale x 8 x i32> %va to <vscale x 8 x i64>
+  %vd = mul <vscale x 8 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 8 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 8 x i64> %head2, <vscale x 8 x i64> undef, <vscale x 8 x i32> zeroinitializer
+  %ve = lshr <vscale x 8 x i64> %vd, %splat2
+  %vf = trunc <vscale x 8 x i64> %ve to <vscale x 8 x i32>
+  ret <vscale x 8 x i32> %vf
+}
+
+define <vscale x 8 x i32> @vmulh_vi_nxv8i32_1(<vscale x 8 x i32> %va) {
+; CHECK-LABEL: vmulh_vi_nxv8i32_1:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    addi a0, zero, 16
+; CHECK-NEXT:    vsetvli a1, zero, e32, m4, ta, mu
+; CHECK-NEXT:    vmulh.vx v8, v8, a0
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 8 x i32> undef, i32 16, i32 0
+  %splat1 = shufflevector <vscale x 8 x i32> %head1, <vscale x 8 x i32> undef, <vscale x 8 x i32> zeroinitializer
+  %vb = sext <vscale x 8 x i32> %splat1 to <vscale x 8 x i64>
+  %vc = sext <vscale x 8 x i32> %va to <vscale x 8 x i64>
+  %vd = mul <vscale x 8 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 8 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 8 x i64> %head2, <vscale x 8 x i64> undef, <vscale x 8 x i32> zeroinitializer
+  %ve = lshr <vscale x 8 x i64> %vd, %splat2
+  %vf = trunc <vscale x 8 x i64> %ve to <vscale x 8 x i32>
+  ret <vscale x 8 x i32> %vf
+}
diff --git a/llvm/test/CodeGen/RISCV/rvv/vmulhu-sdnode-rv32.ll b/llvm/test/CodeGen/RISCV/rvv/vmulhu-sdnode-rv32.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/CodeGen/RISCV/rvv/vmulhu-sdnode-rv32.ll
@@ -0,0 +1,286 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -mtriple=riscv32 -mattr=+experimental-v -verify-machineinstrs < %s | FileCheck %s
+
+define <vscale x 1 x i32> @vmulhu_vv_nxv1i32(<vscale x 1 x i32> %va, <vscale x 1 x i32> %vb) {
+; CHECK-LABEL: vmulhu_vv_nxv1i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a0, zero, e32, mf2, ta, mu
+; CHECK-NEXT:    vmulhu.vv v8, v9, v8
+; CHECK-NEXT:    ret
+  %vc = zext <vscale x 1 x i32> %vb to <vscale x 1 x i64>
+  %vd = zext <vscale x 1 x i32> %va to <vscale x 1 x i64>
+  %ve = mul <vscale x 1 x i64> %vc, %vd
+  %head = insertelement <vscale x 1 x i64> undef, i64 32, i32 0
+  %splat = shufflevector <vscale x 1 x i64> %head, <vscale x 1 x i64> undef, <vscale x 1 x i32> zeroinitializer
+  %vf = lshr <vscale x 1 x i64> %ve, %splat
+  %vg = trunc <vscale x 1 x i64> %vf to <vscale x 1 x i32>
+  ret <vscale x 1 x i32> %vg
+}
+
+define <vscale x 1 x i32> @vmulhu_vx_nxv1i32(<vscale x 1 x i32> %va, i32 %x) {
+; CHECK-LABEL: vmulhu_vx_nxv1i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a1, zero, e32, mf2, ta, mu
+; CHECK-NEXT:    vmulhu.vx v8, v8, a0
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 1 x i32> undef, i32 %x, i32 0
+  %splat1 = shufflevector <vscale x 1 x i32> %head1, <vscale x 1 x i32> undef, <vscale x 1 x i32> zeroinitializer
+  %vb = zext <vscale x 1 x i32> %splat1 to <vscale x 1 x i64>
+  %vc = zext <vscale x 1 x i32> %va to <vscale x 1 x i64>
+  %vd = mul <vscale x 1 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 1 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 1 x i64> %head2, <vscale x 1 x i64> undef, <vscale x 1 x i32> zeroinitializer
+  %ve = lshr <vscale x 1 x i64> %vd, %splat2
+  %vf = trunc <vscale x 1 x i64> %ve to <vscale x 1 x i32>
+  ret <vscale x 1 x i32> %vf
+}
+
+define <vscale x 1 x i32> @vmulhu_vi_nxv1i32_0(<vscale x 1 x i32> %va) {
+; CHECK-LABEL: vmulhu_vi_nxv1i32_0:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    addi a0, zero, -7
+; CHECK-NEXT:    vsetvli a1, zero, e32, mf2, ta, mu
+; CHECK-NEXT:    vmulhu.vx v8, v8, a0
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 1 x i32> undef, i32 -7, i32 0
+  %splat1 = shufflevector <vscale x 1 x i32> %head1, <vscale x 1 x i32> undef, <vscale x 1 x i32> zeroinitializer
+  %vb = zext <vscale x 1 x i32> %splat1 to <vscale x 1 x i64>
+  %vc = zext <vscale x 1 x i32> %va to <vscale x 1 x i64>
+  %vd = mul <vscale x 1 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 1 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 1 x i64> %head2, <vscale x 1 x i64> undef, <vscale x 1 x i32> zeroinitializer
+  %ve = lshr <vscale x 1 x i64> %vd, %splat2
+  %vf = trunc <vscale x 1 x i64> %ve to <vscale x 1 x i32>
+  ret <vscale x 1 x i32> %vf
+}
+
+define <vscale x 1 x i32> @vmulhu_vi_nxv1i32_1(<vscale x 1 x i32> %va) {
+; CHECK-LABEL: vmulhu_vi_nxv1i32_1:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a0, zero, e32, mf2, ta, mu
+; CHECK-NEXT:    vsrl.vi v8, v8, 28
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 1 x i32> undef, i32 16, i32 0
+  %splat1 = shufflevector <vscale x 1 x i32> %head1, <vscale x 1 x i32> undef, <vscale x 1 x i32> zeroinitializer
+  %vb = zext <vscale x 1 x i32> %splat1 to <vscale x 1 x i64>
+  %vc = zext <vscale x 1 x i32> %va to <vscale x 1 x i64>
+  %vd = mul <vscale x 1 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 1 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 1 x i64> %head2, <vscale x 1 x i64> undef, <vscale x 1 x i32> zeroinitializer
+  %ve = lshr <vscale x 1 x i64> %vd, %splat2
+  %vf = trunc <vscale x 1 x i64> %ve to <vscale x 1 x i32>
+  ret <vscale x 1 x i32> %vf
+}
+
+define <vscale x 2 x i32> @vmulhu_vv_nxv2i32(<vscale x 2 x i32> %va, <vscale x 2 x i32> %vb) {
+; CHECK-LABEL: vmulhu_vv_nxv2i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a0, zero, e32, m1, ta, mu
+; CHECK-NEXT:    vmulhu.vv v8, v9, v8
+; CHECK-NEXT:    ret
+  %vc = zext <vscale x 2 x i32> %vb to <vscale x 2 x i64>
+  %vd = zext <vscale x 2 x i32> %va to <vscale x 2 x i64>
+  %ve = mul <vscale x 2 x i64> %vc, %vd
+  %head = insertelement <vscale x 2 x i64> undef, i64 32, i32 0
+  %splat = shufflevector <vscale x 2 x i64> %head, <vscale x 2 x i64> undef, <vscale x 2 x i32> zeroinitializer
+  %vf = lshr <vscale x 2 x i64> %ve, %splat
+  %vg = trunc <vscale x 2 x i64> %vf to <vscale x 2 x i32>
+  ret <vscale x 2 x i32> %vg
+}
+
+define <vscale x 2 x i32> @vmulhu_vx_nxv2i32(<vscale x 2 x i32> %va, i32 %x) {
+; CHECK-LABEL: vmulhu_vx_nxv2i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a1, zero, e32, m1, ta, mu
+; CHECK-NEXT:    vmulhu.vx v8, v8, a0
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 2 x i32> undef, i32 %x, i32 0
+  %splat1 = shufflevector <vscale x 2 x i32> %head1, <vscale x 2 x i32> undef, <vscale x 2 x i32> zeroinitializer
+  %vb = zext <vscale x 2 x i32> %splat1 to <vscale x 2 x i64>
+  %vc = zext <vscale x 2 x i32> %va to <vscale x 2 x i64>
+  %vd = mul <vscale x 2 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 2 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 2 x i64> %head2, <vscale x 2 x i64> undef, <vscale x 2 x i32> zeroinitializer
+  %ve = lshr <vscale x 2 x i64> %vd, %splat2
+  %vf = trunc <vscale x 2 x i64> %ve to <vscale x 2 x i32>
+  ret <vscale x 2 x i32> %vf
+}
+
+define <vscale x 2 x i32> @vmulhu_vi_nxv2i32_0(<vscale x 2 x i32> %va) {
+; CHECK-LABEL: vmulhu_vi_nxv2i32_0:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    addi a0, zero, -7
+; CHECK-NEXT:    vsetvli a1, zero, e32, m1, ta, mu
+; CHECK-NEXT:    vmulhu.vx v8, v8, a0
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 2 x i32> undef, i32 -7, i32 0
+  %splat1 = shufflevector <vscale x 2 x i32> %head1, <vscale x 2 x i32> undef, <vscale x 2 x i32> zeroinitializer
+  %vb = zext <vscale x 2 x i32> %splat1 to <vscale x 2 x i64>
+  %vc = zext <vscale x 2 x i32> %va to <vscale x 2 x i64>
+  %vd = mul <vscale x 2 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 2 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 2 x i64> %head2, <vscale x 2 x i64> undef, <vscale x 2 x i32> zeroinitializer
+  %ve = lshr <vscale x 2 x i64> %vd, %splat2
+  %vf = trunc <vscale x 2 x i64> %ve to <vscale x 2 x i32>
+  ret <vscale x 2 x i32> %vf
+}
+
+define <vscale x 2 x i32> @vmulhu_vi_nxv2i32_1(<vscale x 2 x i32> %va) {
+; CHECK-LABEL: vmulhu_vi_nxv2i32_1:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a0, zero, e32, m1, ta, mu
+; CHECK-NEXT:    vsrl.vi v8, v8, 28
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 2 x i32> undef, i32 16, i32 0
+  %splat1 = shufflevector <vscale x 2 x i32> %head1, <vscale x 2 x i32> undef, <vscale x 2 x i32> zeroinitializer
+  %vb = zext <vscale x 2 x i32> %splat1 to <vscale x 2 x i64>
+  %vc = zext <vscale x 2 x i32> %va to <vscale x 2 x i64>
+  %vd = mul <vscale x 2 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 2 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 2 x i64> %head2, <vscale x 2 x i64> undef, <vscale x 2 x i32> zeroinitializer
+  %ve = lshr <vscale x 2 x i64> %vd, %splat2
+  %vf = trunc <vscale x 2 x i64> %ve to <vscale x 2 x i32>
+  ret <vscale x 2 x i32> %vf
+}
+
+define <vscale x 4 x i32> @vmulhu_vv_nxv4i32(<vscale x 4 x i32> %va, <vscale x 4 x i32> %vb) {
+; CHECK-LABEL: vmulhu_vv_nxv4i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a0, zero, e32, m2, ta, mu
+; CHECK-NEXT:    vmulhu.vv v8, v10, v8
+; CHECK-NEXT:    ret
+  %vc = zext <vscale x 4 x i32> %vb to <vscale x 4 x i64>
+  %vd = zext <vscale x 4 x i32> %va to <vscale x 4 x i64>
+  %ve = mul <vscale x 4 x i64> %vc, %vd
+  %head = insertelement <vscale x 4 x i64> undef, i64 32, i32 0
+  %splat = shufflevector <vscale x 4 x i64> %head, <vscale x 4 x i64> undef, <vscale x 4 x i32> zeroinitializer
+  %vf = lshr <vscale x 4 x i64> %ve, %splat
+  %vg = trunc <vscale x 4 x i64> %vf to <vscale x 4 x i32>
+  ret <vscale x 4 x i32> %vg
+}
+
+define <vscale x 4 x i32> @vmulhu_vx_nxv4i32(<vscale x 4 x i32> %va, i32 %x) {
+; CHECK-LABEL: vmulhu_vx_nxv4i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a1, zero, e32, m2, ta, mu
+; CHECK-NEXT:    vmulhu.vx v8, v8, a0
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 4 x i32> undef, i32 %x, i32 0
+  %splat1 = shufflevector <vscale x 4 x i32> %head1, <vscale x 4 x i32> undef, <vscale x 4 x i32> zeroinitializer
+  %vb = zext <vscale x 4 x i32> %splat1 to <vscale x 4 x i64>
+  %vc = zext <vscale x 4 x i32> %va to <vscale x 4 x i64>
+  %vd = mul <vscale x 4 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 4 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 4 x i64> %head2, <vscale x 4 x i64> undef, <vscale x 4 x i32> zeroinitializer
+  %ve = lshr <vscale x 4 x i64> %vd, %splat2
+  %vf = trunc <vscale x 4 x i64> %ve to <vscale x 4 x i32>
+  ret <vscale x 4 x i32> %vf
+}
+
+define <vscale x 4 x i32> @vmulhu_vi_nxv4i32_0(<vscale x 4 x i32> %va) {
+; CHECK-LABEL: vmulhu_vi_nxv4i32_0:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    addi a0, zero, -7
+; CHECK-NEXT:    vsetvli a1, zero, e32, m2, ta, mu
+; CHECK-NEXT:    vmulhu.vx v8, v8, a0
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 4 x i32> undef, i32 -7, i32 0
+  %splat1 = shufflevector <vscale x 4 x i32> %head1, <vscale x 4 x i32> undef, <vscale x 4 x i32> zeroinitializer
+  %vb = zext <vscale x 4 x i32> %splat1 to <vscale x 4 x i64>
+  %vc = zext <vscale x 4 x i32> %va to <vscale x 4 x i64>
+  %vd = mul <vscale x 4 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 4 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 4 x i64> %head2, <vscale x 4 x i64> undef, <vscale x 4 x i32> zeroinitializer
+  %ve = lshr <vscale x 4 x i64> %vd, %splat2
+  %vf = trunc <vscale x 4 x i64> %ve to <vscale x 4 x i32>
+  ret <vscale x 4 x i32> %vf
+}
+
+define <vscale x 4 x i32> @vmulhu_vi_nxv4i32_1(<vscale x 4 x i32> %va) {
+; CHECK-LABEL: vmulhu_vi_nxv4i32_1:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a0, zero, e32, m2, ta, mu
+; CHECK-NEXT:    vsrl.vi v8, v8, 28
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 4 x i32> undef, i32 16, i32 0
+  %splat1 = shufflevector <vscale x 4 x i32> %head1, <vscale x 4 x i32> undef, <vscale x 4 x i32> zeroinitializer
+  %vb = zext <vscale x 4 x i32> %splat1 to <vscale x 4 x i64>
+  %vc = zext <vscale x 4 x i32> %va to <vscale x 4 x i64>
+  %vd = mul <vscale x 4 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 4 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 4 x i64> %head2, <vscale x 4 x i64> undef, <vscale x 4 x i32> zeroinitializer
+  %ve = lshr <vscale x 4 x i64> %vd, %splat2
+  %vf = trunc <vscale x 4 x i64> %ve to <vscale x 4 x i32>
+  ret <vscale x 4 x i32> %vf
+}
+
+define <vscale x 8 x i32> @vmulhu_vv_nxv8i32(<vscale x 8 x i32> %va, <vscale x 8 x i32> %vb) {
+; CHECK-LABEL: vmulhu_vv_nxv8i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a0, zero, e32, m4, ta, mu
+; CHECK-NEXT:    vmulhu.vv v8, v12, v8
+; CHECK-NEXT:    ret
+  %vc = zext <vscale x 8 x i32> %vb to <vscale x 8 x i64>
+  %vd = zext <vscale x 8 x i32> %va to <vscale x 8 x i64>
+  %ve = mul <vscale x 8 x i64> %vc, %vd
+  %head = insertelement <vscale x 8 x i64> undef, i64 32, i32 0
+  %splat = shufflevector <vscale x 8 x i64> %head, <vscale x 8 x i64> undef, <vscale x 8 x i32> zeroinitializer
+  %vf = lshr <vscale x 8 x i64> %ve, %splat
+  %vg = trunc <vscale x 8 x i64> %vf to <vscale x 8 x i32>
+  ret <vscale x 8 x i32> %vg
+}
+
+define <vscale x 8 x i32> @vmulhu_vx_nxv8i32(<vscale x 8 x i32> %va, i32 %x) {
+; CHECK-LABEL: vmulhu_vx_nxv8i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a1, zero, e32, m4, ta, mu
+; CHECK-NEXT:    vmulhu.vx v8, v8, a0
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 8 x i32> undef, i32 %x, i32 0
+  %splat1 = shufflevector <vscale x 8 x i32> %head1, <vscale x 8 x i32> undef, <vscale x 8 x i32> zeroinitializer
+  %vb = zext <vscale x 8 x i32> %splat1 to <vscale x 8 x i64>
+  %vc = zext <vscale x 8 x i32> %va to <vscale x 8 x i64>
+  %vd = mul <vscale x 8 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 8 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 8 x i64> %head2, <vscale x 8 x i64> undef, <vscale x 8 x i32> zeroinitializer
+  %ve = lshr <vscale x 8 x i64> %vd, %splat2
+  %vf = trunc <vscale x 8 x i64> %ve to <vscale x 8 x i32>
+  ret <vscale x 8 x i32> %vf
+}
+
+define <vscale x 8 x i32> @vmulhu_vi_nxv8i32_0(<vscale x 8 x i32> %va) {
+; CHECK-LABEL: vmulhu_vi_nxv8i32_0:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    addi a0, zero, -7
+; CHECK-NEXT:    vsetvli a1, zero, e32, m4, ta, mu
+; CHECK-NEXT:    vmulhu.vx v8, v8, a0
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 8 x i32> undef, i32 -7, i32 0
+  %splat1 = shufflevector <vscale x 8 x i32> %head1, <vscale x 8 x i32> undef, <vscale x 8 x i32> zeroinitializer
+  %vb = zext <vscale x 8 x i32> %splat1 to <vscale x 8 x i64>
+  %vc = zext <vscale x 8 x i32> %va to <vscale x 8 x i64>
+  %vd = mul <vscale x 8 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 8 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 8 x i64> %head2, <vscale x 8 x i64> undef, <vscale x 8 x i32> zeroinitializer
+  %ve = lshr <vscale x 8 x i64> %vd, %splat2
+  %vf = trunc <vscale x 8 x i64> %ve to <vscale x 8 x i32>
+  ret <vscale x 8 x i32> %vf
+}
+
+define <vscale x 8 x i32> @vmulhu_vi_nxv8i32_1(<vscale x 8 x i32> %va) {
+; CHECK-LABEL: vmulhu_vi_nxv8i32_1:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetvli a0, zero, e32, m4, ta, mu
+; CHECK-NEXT:    vsrl.vi v8, v8, 28
+; CHECK-NEXT:    ret
+  %head1 = insertelement <vscale x 8 x i32> undef, i32 16, i32 0
+  %splat1 = shufflevector <vscale x 8 x i32> %head1, <vscale x 8 x i32> undef, <vscale x 8 x i32> zeroinitializer
+  %vb = zext <vscale x 8 x i32> %splat1 to <vscale x 8 x i64>
+  %vc = zext <vscale x 8 x i32> %va to <vscale x 8 x i64>
+  %vd = mul <vscale x 8 x i64> %vb, %vc
+  %head2 = insertelement <vscale x 8 x i64> undef, i64 32, i32 0
+  %splat2 = shufflevector <vscale x 8 x i64> %head2, <vscale x 8 x i64> undef, <vscale x 8 x i32> zeroinitializer
+  %ve = lshr <vscale x 8 x i64> %vd, %splat2
+  %vf = trunc <vscale x 8 x i64> %ve to <vscale x 8 x i32>
+  ret <vscale x 8 x i32> %vf
+}