diff --git a/llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td b/llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td
--- a/llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td
+++ b/llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td
@@ -712,6 +712,46 @@
   defm : VPatBinarySDNodeExt_V_WX<op, zext_oneuse, instruction_name>;
 }
 
+multiclass VPatWidenReductionVL<SDNode vop, PatFrags extop, string instruction_name> {
+  foreach vtiToWti = AllWidenableIntVectors in {
+    defvar vti = vtiToWti.Vti;
+    defvar wti = vtiToWti.Wti;
+    defvar wti_m1 = !cast<VTypeInfo>("VI"#wti.SEW#"M1");
+    def: Pat<(wti_m1.Vector (vop (wti_m1.Vector VR:$merge),
+                                 (wti.Vector (extop (vti.Vector vti.RegClass:$rs1))),
+                                 VR:$rs2, (vti.Mask true_mask), VLOpFrag)),
+             (!cast<Instruction>(instruction_name#"_VS_"#vti.LMul.MX)
+                (wti_m1.Vector VR:$merge), (vti.Vector vti.RegClass:$rs1),
+                (wti_m1.Vector VR:$rs2), GPR:$vl, vti.Log2SEW)>;
+    def: Pat<(wti_m1.Vector (vop (wti_m1.Vector VR:$merge),
+                                 (wti.Vector (extop (vti.Vector vti.RegClass:$rs1))),
+                                 VR:$rs2, (vti.Mask V0), VLOpFrag)),
+             (!cast<Instruction>(instruction_name#"_VS_"#vti.LMul.MX#"_MASK")
+                (wti_m1.Vector VR:$merge), (vti.Vector vti.RegClass:$rs1),
+                (wti_m1.Vector VR:$rs2), (vti.Mask V0), GPR:$vl, vti.Log2SEW)>;
+  }
+}
+
+multiclass VPatWidenReductionVL_Ext_VL<SDNode vop, SDNode extop, string instruction_name> {
+  foreach vtiToWti = AllWidenableIntVectors in {
+    defvar vti = vtiToWti.Vti;
+    defvar wti = vtiToWti.Wti;
+    defvar wti_m1 = !cast<VTypeInfo>("VI"#wti.SEW#"M1");
+    def: Pat<(wti_m1.Vector (vop (wti_m1.Vector VR:$merge),
+                                 (wti.Vector (extop (vti.Vector vti.RegClass:$rs1), (vti.Mask true_mask), VLOpFrag)),
+                                 VR:$rs2, (vti.Mask true_mask), VLOpFrag)),
+             (!cast<Instruction>(instruction_name#"_VS_"#vti.LMul.MX)
+                (wti_m1.Vector VR:$merge), (vti.Vector vti.RegClass:$rs1),
+                (wti_m1.Vector VR:$rs2), GPR:$vl, vti.Log2SEW)>;
+    def: Pat<(wti_m1.Vector (vop (wti_m1.Vector VR:$merge),
+                                 (wti.Vector (extop (vti.Vector vti.RegClass:$rs1), (vti.Mask true_mask), VLOpFrag)),
+                                 VR:$rs2, (vti.Mask V0), VLOpFrag)),
+             (!cast<Instruction>(instruction_name#"_VS_"#vti.LMul.MX#"_MASK")
+                (wti_m1.Vector VR:$merge), (vti.Vector vti.RegClass:$rs1),
+                (wti_m1.Vector VR:$rs2), (vti.Mask V0), GPR:$vl, vti.Log2SEW)>;
+  }
+}
+
 //===----------------------------------------------------------------------===//
 // Patterns.
 //===----------------------------------------------------------------------===//
@@ -1085,6 +1125,13 @@
 defm : VPatReductionVL<rvv_vecreduce_AND_vl,  "PseudoVREDAND", /*is_float*/0>;
 defm : VPatReductionVL<rvv_vecreduce_OR_vl,   "PseudoVREDOR", /*is_float*/0>;
 defm : VPatReductionVL<rvv_vecreduce_XOR_vl,  "PseudoVREDXOR", /*is_float*/0>;
+
+// 15.2. Vector Widening Integer Reduction Instructions
+defm : VPatWidenReductionVL<rvv_vecreduce_ADD_vl, anyext_oneuse, "PseudoVWREDSUMU">;
+defm : VPatWidenReductionVL<rvv_vecreduce_ADD_vl, zext_oneuse, "PseudoVWREDSUMU">;
+defm : VPatWidenReductionVL_Ext_VL<rvv_vecreduce_ADD_vl, riscv_zext_vl, "PseudoVWREDSUMU">;
+defm : VPatWidenReductionVL<rvv_vecreduce_ADD_vl, sext_oneuse, "PseudoVWREDSUM">;
+defm : VPatWidenReductionVL_Ext_VL<rvv_vecreduce_ADD_vl, riscv_sext_vl, "PseudoVWREDSUM">;
 } // Predicates = [HasVInstructions]
 
 // 15.3. Vector Single-Width Floating-Point Reduction Instructions
diff --git a/llvm/test/CodeGen/RISCV/rvv/fixed-vectors-reduction-int.ll b/llvm/test/CodeGen/RISCV/rvv/fixed-vectors-reduction-int.ll
--- a/llvm/test/CodeGen/RISCV/rvv/fixed-vectors-reduction-int.ll
+++ b/llvm/test/CodeGen/RISCV/rvv/fixed-vectors-reduction-int.ll
@@ -440,6 +440,60 @@
   ret i64 %red
 }
 
+define i64 @vwreduce_add_v1i64(<1 x i32>* %x) {
+; RV32-LABEL: vwreduce_add_v1i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetivli zero, 1, e32, mf2, ta, mu
+; RV32-NEXT:    vle32.v v8, (a0)
+; RV32-NEXT:    vsetvli zero, zero, e64, m1, ta, mu
+; RV32-NEXT:    vsext.vf2 v9, v8
+; RV32-NEXT:    li a0, 32
+; RV32-NEXT:    vsrl.vx v8, v9, a0
+; RV32-NEXT:    vmv.x.s a1, v8
+; RV32-NEXT:    vmv.x.s a0, v9
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: vwreduce_add_v1i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetivli zero, 1, e32, mf2, ta, mu
+; RV64-NEXT:    vle32.v v8, (a0)
+; RV64-NEXT:    vsetvli zero, zero, e64, m1, ta, mu
+; RV64-NEXT:    vsext.vf2 v9, v8
+; RV64-NEXT:    vmv.x.s a0, v9
+; RV64-NEXT:    ret
+  %v = load <1 x i32>, <1 x i32>* %x
+  %e = sext <1 x i32> %v to <1 x i64>
+  %red = call i64 @llvm.vector.reduce.add.v1i64(<1 x i64> %e)
+  ret i64 %red
+}
+
+define i64 @vwreduce_uadd_v1i64(<1 x i32>* %x) {
+; RV32-LABEL: vwreduce_uadd_v1i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetivli zero, 1, e32, mf2, ta, mu
+; RV32-NEXT:    vle32.v v8, (a0)
+; RV32-NEXT:    vsetvli zero, zero, e64, m1, ta, mu
+; RV32-NEXT:    vzext.vf2 v9, v8
+; RV32-NEXT:    li a0, 32
+; RV32-NEXT:    vsrl.vx v8, v9, a0
+; RV32-NEXT:    vmv.x.s a1, v8
+; RV32-NEXT:    vmv.x.s a0, v9
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: vwreduce_uadd_v1i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetivli zero, 1, e32, mf2, ta, mu
+; RV64-NEXT:    vle32.v v8, (a0)
+; RV64-NEXT:    vsetvli zero, zero, e64, m1, ta, mu
+; RV64-NEXT:    vzext.vf2 v9, v8
+; RV64-NEXT:    vmv.x.s a0, v9
+; RV64-NEXT:    ret
+  %v = load <1 x i32>, <1 x i32>* %x
+  %e = zext <1 x i32> %v to <1 x i64>
+  %red = call i64 @llvm.vector.reduce.add.v1i64(<1 x i64> %e)
+  ret i64 %red
+}
+
 declare i64 @llvm.vector.reduce.add.v2i64(<2 x i64>)
 
 define i64 @vreduce_add_v2i64(<2 x i64>* %x) {
@@ -469,6 +523,74 @@
   ret i64 %red
 }
 
+define i64 @vwreduce_add_v2i64(<2 x i32>* %x) {
+; RV32-LABEL: vwreduce_add_v2i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetivli zero, 2, e32, mf2, ta, mu
+; RV32-NEXT:    vle32.v v8, (a0)
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vmv.s.x v9, zero
+; RV32-NEXT:    vsetivli zero, 2, e32, mf2, ta, mu
+; RV32-NEXT:    vwredsum.vs v8, v8, v9
+; RV32-NEXT:    vsetvli zero, zero, e64, m1, ta, mu
+; RV32-NEXT:    vmv.x.s a0, v8
+; RV32-NEXT:    li a1, 32
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vsrl.vx v8, v8, a1
+; RV32-NEXT:    vmv.x.s a1, v8
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: vwreduce_add_v2i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetivli zero, 2, e32, mf2, ta, mu
+; RV64-NEXT:    vle32.v v8, (a0)
+; RV64-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV64-NEXT:    vmv.s.x v9, zero
+; RV64-NEXT:    vsetivli zero, 2, e32, mf2, ta, mu
+; RV64-NEXT:    vwredsum.vs v8, v8, v9
+; RV64-NEXT:    vsetvli zero, zero, e64, m1, ta, mu
+; RV64-NEXT:    vmv.x.s a0, v8
+; RV64-NEXT:    ret
+  %v = load <2 x i32>, <2 x i32>* %x
+  %e = sext <2 x i32> %v to <2 x i64>
+  %red = call i64 @llvm.vector.reduce.add.v2i64(<2 x i64> %e)
+  ret i64 %red
+}
+
+define i64 @vwreduce_uadd_v2i64(<2 x i32>* %x) {
+; RV32-LABEL: vwreduce_uadd_v2i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetivli zero, 2, e32, mf2, ta, mu
+; RV32-NEXT:    vle32.v v8, (a0)
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vmv.s.x v9, zero
+; RV32-NEXT:    vsetivli zero, 2, e32, mf2, ta, mu
+; RV32-NEXT:    vwredsumu.vs v8, v8, v9
+; RV32-NEXT:    vsetvli zero, zero, e64, m1, ta, mu
+; RV32-NEXT:    vmv.x.s a0, v8
+; RV32-NEXT:    li a1, 32
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vsrl.vx v8, v8, a1
+; RV32-NEXT:    vmv.x.s a1, v8
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: vwreduce_uadd_v2i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetivli zero, 2, e32, mf2, ta, mu
+; RV64-NEXT:    vle32.v v8, (a0)
+; RV64-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV64-NEXT:    vmv.s.x v9, zero
+; RV64-NEXT:    vsetivli zero, 2, e32, mf2, ta, mu
+; RV64-NEXT:    vwredsumu.vs v8, v8, v9
+; RV64-NEXT:    vsetvli zero, zero, e64, m1, ta, mu
+; RV64-NEXT:    vmv.x.s a0, v8
+; RV64-NEXT:    ret
+  %v = load <2 x i32>, <2 x i32>* %x
+  %e = zext <2 x i32> %v to <2 x i64>
+  %red = call i64 @llvm.vector.reduce.add.v2i64(<2 x i64> %e)
+  ret i64 %red
+}
+
 declare i64 @llvm.vector.reduce.add.v4i64(<4 x i64>)
 
 define i64 @vreduce_add_v4i64(<4 x i64>* %x) {
@@ -498,6 +620,74 @@
   ret i64 %red
 }
 
+define i64 @vwreduce_add_v4i64(<4 x i32>* %x) {
+; RV32-LABEL: vwreduce_add_v4i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetivli zero, 4, e32, m1, ta, mu
+; RV32-NEXT:    vle32.v v8, (a0)
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vmv.s.x v9, zero
+; RV32-NEXT:    vsetivli zero, 4, e32, m1, ta, mu
+; RV32-NEXT:    vwredsum.vs v8, v8, v9
+; RV32-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; RV32-NEXT:    vmv.x.s a0, v8
+; RV32-NEXT:    li a1, 32
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vsrl.vx v8, v8, a1
+; RV32-NEXT:    vmv.x.s a1, v8
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: vwreduce_add_v4i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetivli zero, 4, e32, m1, ta, mu
+; RV64-NEXT:    vle32.v v8, (a0)
+; RV64-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV64-NEXT:    vmv.s.x v9, zero
+; RV64-NEXT:    vsetivli zero, 4, e32, m1, ta, mu
+; RV64-NEXT:    vwredsum.vs v8, v8, v9
+; RV64-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; RV64-NEXT:    vmv.x.s a0, v8
+; RV64-NEXT:    ret
+  %v = load <4 x i32>, <4 x i32>* %x
+  %e = sext <4 x i32> %v to <4 x i64>
+  %red = call i64 @llvm.vector.reduce.add.v4i64(<4 x i64> %e)
+  ret i64 %red
+}
+
+define i64 @vwreduce_uadd_v4i64(<4 x i32>* %x) {
+; RV32-LABEL: vwreduce_uadd_v4i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetivli zero, 4, e32, m1, ta, mu
+; RV32-NEXT:    vle32.v v8, (a0)
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vmv.s.x v9, zero
+; RV32-NEXT:    vsetivli zero, 4, e32, m1, ta, mu
+; RV32-NEXT:    vwredsumu.vs v8, v8, v9
+; RV32-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; RV32-NEXT:    vmv.x.s a0, v8
+; RV32-NEXT:    li a1, 32
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vsrl.vx v8, v8, a1
+; RV32-NEXT:    vmv.x.s a1, v8
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: vwreduce_uadd_v4i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetivli zero, 4, e32, m1, ta, mu
+; RV64-NEXT:    vle32.v v8, (a0)
+; RV64-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV64-NEXT:    vmv.s.x v9, zero
+; RV64-NEXT:    vsetivli zero, 4, e32, m1, ta, mu
+; RV64-NEXT:    vwredsumu.vs v8, v8, v9
+; RV64-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; RV64-NEXT:    vmv.x.s a0, v8
+; RV64-NEXT:    ret
+  %v = load <4 x i32>, <4 x i32>* %x
+  %e = zext <4 x i32> %v to <4 x i64>
+  %red = call i64 @llvm.vector.reduce.add.v4i64(<4 x i64> %e)
+  ret i64 %red
+}
+
 declare i64 @llvm.vector.reduce.add.v8i64(<8 x i64>)
 
 define i64 @vreduce_add_v8i64(<8 x i64>* %x) {
@@ -527,6 +717,74 @@
   ret i64 %red
 }
 
+define i64 @vwreduce_add_v8i64(<8 x i32>* %x) {
+; RV32-LABEL: vwreduce_add_v8i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetivli zero, 8, e32, m2, ta, mu
+; RV32-NEXT:    vle32.v v8, (a0)
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vmv.s.x v10, zero
+; RV32-NEXT:    vsetivli zero, 8, e32, m2, ta, mu
+; RV32-NEXT:    vwredsum.vs v8, v8, v10
+; RV32-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; RV32-NEXT:    vmv.x.s a0, v8
+; RV32-NEXT:    li a1, 32
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vsrl.vx v8, v8, a1
+; RV32-NEXT:    vmv.x.s a1, v8
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: vwreduce_add_v8i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetivli zero, 8, e32, m2, ta, mu
+; RV64-NEXT:    vle32.v v8, (a0)
+; RV64-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV64-NEXT:    vmv.s.x v10, zero
+; RV64-NEXT:    vsetivli zero, 8, e32, m2, ta, mu
+; RV64-NEXT:    vwredsum.vs v8, v8, v10
+; RV64-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; RV64-NEXT:    vmv.x.s a0, v8
+; RV64-NEXT:    ret
+  %v = load <8 x i32>, <8 x i32>* %x
+  %e = sext <8 x i32> %v to <8 x i64>
+  %red = call i64 @llvm.vector.reduce.add.v8i64(<8 x i64> %e)
+  ret i64 %red
+}
+
+define i64 @vwreduce_uadd_v8i64(<8 x i32>* %x) {
+; RV32-LABEL: vwreduce_uadd_v8i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetivli zero, 8, e32, m2, ta, mu
+; RV32-NEXT:    vle32.v v8, (a0)
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vmv.s.x v10, zero
+; RV32-NEXT:    vsetivli zero, 8, e32, m2, ta, mu
+; RV32-NEXT:    vwredsumu.vs v8, v8, v10
+; RV32-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; RV32-NEXT:    vmv.x.s a0, v8
+; RV32-NEXT:    li a1, 32
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vsrl.vx v8, v8, a1
+; RV32-NEXT:    vmv.x.s a1, v8
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: vwreduce_uadd_v8i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetivli zero, 8, e32, m2, ta, mu
+; RV64-NEXT:    vle32.v v8, (a0)
+; RV64-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV64-NEXT:    vmv.s.x v10, zero
+; RV64-NEXT:    vsetivli zero, 8, e32, m2, ta, mu
+; RV64-NEXT:    vwredsumu.vs v8, v8, v10
+; RV64-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; RV64-NEXT:    vmv.x.s a0, v8
+; RV64-NEXT:    ret
+  %v = load <8 x i32>, <8 x i32>* %x
+  %e = zext <8 x i32> %v to <8 x i64>
+  %red = call i64 @llvm.vector.reduce.add.v8i64(<8 x i64> %e)
+  ret i64 %red
+}
+
 declare i64 @llvm.vector.reduce.add.v16i64(<16 x i64>)
 
 define i64 @vreduce_add_v16i64(<16 x i64>* %x) {
@@ -556,6 +814,74 @@
   ret i64 %red
 }
 
+define i64 @vwreduce_add_v16i64(<16 x i32>* %x) {
+; RV32-LABEL: vwreduce_add_v16i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetivli zero, 16, e32, m4, ta, mu
+; RV32-NEXT:    vle32.v v8, (a0)
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vmv.s.x v12, zero
+; RV32-NEXT:    vsetivli zero, 16, e32, m4, ta, mu
+; RV32-NEXT:    vwredsum.vs v8, v8, v12
+; RV32-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; RV32-NEXT:    vmv.x.s a0, v8
+; RV32-NEXT:    li a1, 32
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vsrl.vx v8, v8, a1
+; RV32-NEXT:    vmv.x.s a1, v8
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: vwreduce_add_v16i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetivli zero, 16, e32, m4, ta, mu
+; RV64-NEXT:    vle32.v v8, (a0)
+; RV64-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV64-NEXT:    vmv.s.x v12, zero
+; RV64-NEXT:    vsetivli zero, 16, e32, m4, ta, mu
+; RV64-NEXT:    vwredsum.vs v8, v8, v12
+; RV64-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; RV64-NEXT:    vmv.x.s a0, v8
+; RV64-NEXT:    ret
+  %v = load <16 x i32>, <16 x i32>* %x
+  %e = sext <16 x i32> %v to <16 x i64>
+  %red = call i64 @llvm.vector.reduce.add.v16i64(<16 x i64> %e)
+  ret i64 %red
+}
+
+define i64 @vwreduce_uadd_v16i64(<16 x i32>* %x) {
+; RV32-LABEL: vwreduce_uadd_v16i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetivli zero, 16, e32, m4, ta, mu
+; RV32-NEXT:    vle32.v v8, (a0)
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vmv.s.x v12, zero
+; RV32-NEXT:    vsetivli zero, 16, e32, m4, ta, mu
+; RV32-NEXT:    vwredsumu.vs v8, v8, v12
+; RV32-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; RV32-NEXT:    vmv.x.s a0, v8
+; RV32-NEXT:    li a1, 32
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vsrl.vx v8, v8, a1
+; RV32-NEXT:    vmv.x.s a1, v8
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: vwreduce_uadd_v16i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetivli zero, 16, e32, m4, ta, mu
+; RV64-NEXT:    vle32.v v8, (a0)
+; RV64-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV64-NEXT:    vmv.s.x v12, zero
+; RV64-NEXT:    vsetivli zero, 16, e32, m4, ta, mu
+; RV64-NEXT:    vwredsumu.vs v8, v8, v12
+; RV64-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; RV64-NEXT:    vmv.x.s a0, v8
+; RV64-NEXT:    ret
+  %v = load <16 x i32>, <16 x i32>* %x
+  %e = zext <16 x i32> %v to <16 x i64>
+  %red = call i64 @llvm.vector.reduce.add.v16i64(<16 x i64> %e)
+  ret i64 %red
+}
+
 declare i64 @llvm.vector.reduce.add.v32i64(<32 x i64>)
 
 define i64 @vreduce_add_v32i64(<32 x i64>* %x) {
@@ -591,6 +917,88 @@
   ret i64 %red
 }
 
+define i64 @vwreduce_add_v32i64(<32 x i32>* %x) {
+; RV32-LABEL: vwreduce_add_v32i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    li a1, 32
+; RV32-NEXT:    vsetvli zero, a1, e32, m8, ta, mu
+; RV32-NEXT:    vle32.v v8, (a0)
+; RV32-NEXT:    vsetivli zero, 16, e32, m8, ta, mu
+; RV32-NEXT:    vslidedown.vi v16, v8, 16
+; RV32-NEXT:    vsetivli zero, 16, e32, m4, ta, mu
+; RV32-NEXT:    vwadd.vv v24, v8, v16
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vmv.s.x v8, zero
+; RV32-NEXT:    vsetivli zero, 16, e64, m8, ta, mu
+; RV32-NEXT:    vredsum.vs v8, v24, v8
+; RV32-NEXT:    vmv.x.s a0, v8
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vsrl.vx v8, v8, a1
+; RV32-NEXT:    vmv.x.s a1, v8
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: vwreduce_add_v32i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    li a1, 32
+; RV64-NEXT:    vsetvli zero, a1, e32, m8, ta, mu
+; RV64-NEXT:    vle32.v v8, (a0)
+; RV64-NEXT:    vsetivli zero, 16, e32, m8, ta, mu
+; RV64-NEXT:    vslidedown.vi v16, v8, 16
+; RV64-NEXT:    vsetivli zero, 16, e32, m4, ta, mu
+; RV64-NEXT:    vwadd.vv v24, v8, v16
+; RV64-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV64-NEXT:    vmv.s.x v8, zero
+; RV64-NEXT:    vsetivli zero, 16, e64, m8, ta, mu
+; RV64-NEXT:    vredsum.vs v8, v24, v8
+; RV64-NEXT:    vmv.x.s a0, v8
+; RV64-NEXT:    ret
+  %v = load <32 x i32>, <32 x i32>* %x
+  %e = sext <32 x i32> %v to <32 x i64>
+  %red = call i64 @llvm.vector.reduce.add.v32i64(<32 x i64> %e)
+  ret i64 %red
+}
+
+define i64 @vwreduce_uadd_v32i64(<32 x i32>* %x) {
+; RV32-LABEL: vwreduce_uadd_v32i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    li a1, 32
+; RV32-NEXT:    vsetvli zero, a1, e32, m8, ta, mu
+; RV32-NEXT:    vle32.v v8, (a0)
+; RV32-NEXT:    vsetivli zero, 16, e32, m8, ta, mu
+; RV32-NEXT:    vslidedown.vi v16, v8, 16
+; RV32-NEXT:    vsetivli zero, 16, e32, m4, ta, mu
+; RV32-NEXT:    vwaddu.vv v24, v8, v16
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vmv.s.x v8, zero
+; RV32-NEXT:    vsetivli zero, 16, e64, m8, ta, mu
+; RV32-NEXT:    vredsum.vs v8, v24, v8
+; RV32-NEXT:    vmv.x.s a0, v8
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vsrl.vx v8, v8, a1
+; RV32-NEXT:    vmv.x.s a1, v8
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: vwreduce_uadd_v32i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    li a1, 32
+; RV64-NEXT:    vsetvli zero, a1, e32, m8, ta, mu
+; RV64-NEXT:    vle32.v v8, (a0)
+; RV64-NEXT:    vsetivli zero, 16, e32, m8, ta, mu
+; RV64-NEXT:    vslidedown.vi v16, v8, 16
+; RV64-NEXT:    vsetivli zero, 16, e32, m4, ta, mu
+; RV64-NEXT:    vwaddu.vv v24, v8, v16
+; RV64-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV64-NEXT:    vmv.s.x v8, zero
+; RV64-NEXT:    vsetivli zero, 16, e64, m8, ta, mu
+; RV64-NEXT:    vredsum.vs v8, v24, v8
+; RV64-NEXT:    vmv.x.s a0, v8
+; RV64-NEXT:    ret
+  %v = load <32 x i32>, <32 x i32>* %x
+  %e = zext <32 x i32> %v to <32 x i64>
+  %red = call i64 @llvm.vector.reduce.add.v32i64(<32 x i64> %e)
+  ret i64 %red
+}
+
 declare i64 @llvm.vector.reduce.add.v64i64(<64 x i64>)
 
 define i64 @vreduce_add_v64i64(<64 x i64>* %x) nounwind {
@@ -638,6 +1046,284 @@
   ret i64 %red
 }
 
+define i64 @vwreduce_add_v64i64(<64 x i32>* %x) {
+; RV32-LABEL: vwreduce_add_v64i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    .cfi_def_cfa_offset 16
+; RV32-NEXT:    csrr a1, vlenb
+; RV32-NEXT:    slli a1, a1, 5
+; RV32-NEXT:    sub sp, sp, a1
+; RV32-NEXT:    addi a1, a0, 128
+; RV32-NEXT:    li a2, 32
+; RV32-NEXT:    vsetvli zero, a2, e32, m8, ta, mu
+; RV32-NEXT:    vle32.v v8, (a0)
+; RV32-NEXT:    addi a0, sp, 16
+; RV32-NEXT:    vs8r.v v8, (a0) # Unknown-size Folded Spill
+; RV32-NEXT:    vle32.v v16, (a1)
+; RV32-NEXT:    vsetivli zero, 16, e32, m8, ta, mu
+; RV32-NEXT:    vslidedown.vi v24, v8, 16
+; RV32-NEXT:    csrr a0, vlenb
+; RV32-NEXT:    li a1, 24
+; RV32-NEXT:    mul a0, a0, a1
+; RV32-NEXT:    add a0, sp, a0
+; RV32-NEXT:    addi a0, a0, 16
+; RV32-NEXT:    vs8r.v v24, (a0) # Unknown-size Folded Spill
+; RV32-NEXT:    vslidedown.vi v24, v16, 16
+; RV32-NEXT:    csrr a0, vlenb
+; RV32-NEXT:    slli a0, a0, 3
+; RV32-NEXT:    add a0, sp, a0
+; RV32-NEXT:    addi a0, a0, 16
+; RV32-NEXT:    vs8r.v v24, (a0) # Unknown-size Folded Spill
+; RV32-NEXT:    vsetivli zero, 16, e32, m4, ta, mu
+; RV32-NEXT:    csrr a0, vlenb
+; RV32-NEXT:    li a1, 24
+; RV32-NEXT:    mul a0, a0, a1
+; RV32-NEXT:    add a0, sp, a0
+; RV32-NEXT:    addi a0, a0, 16
+; RV32-NEXT:    vl8re8.v v24, (a0) # Unknown-size Folded Reload
+; RV32-NEXT:    csrr a0, vlenb
+; RV32-NEXT:    slli a0, a0, 3
+; RV32-NEXT:    add a0, sp, a0
+; RV32-NEXT:    addi a0, a0, 16
+; RV32-NEXT:    vl8re8.v v8, (a0) # Unknown-size Folded Reload
+; RV32-NEXT:    vwadd.vv v0, v24, v8
+; RV32-NEXT:    csrr a0, vlenb
+; RV32-NEXT:    slli a0, a0, 4
+; RV32-NEXT:    add a0, sp, a0
+; RV32-NEXT:    addi a0, a0, 16
+; RV32-NEXT:    vs8r.v v0, (a0) # Unknown-size Folded Spill
+; RV32-NEXT:    addi a0, sp, 16
+; RV32-NEXT:    vl8re8.v v8, (a0) # Unknown-size Folded Reload
+; RV32-NEXT:    vwadd.vv v0, v8, v16
+; RV32-NEXT:    vsetvli zero, zero, e64, m8, ta, mu
+; RV32-NEXT:    csrr a0, vlenb
+; RV32-NEXT:    slli a0, a0, 4
+; RV32-NEXT:    add a0, sp, a0
+; RV32-NEXT:    addi a0, a0, 16
+; RV32-NEXT:    vl8re8.v v8, (a0) # Unknown-size Folded Reload
+; RV32-NEXT:    vadd.vv v8, v0, v8
+; RV32-NEXT:    vmv.s.x v16, zero
+; RV32-NEXT:    vredsum.vs v8, v8, v16
+; RV32-NEXT:    vmv.x.s a0, v8
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vsrl.vx v8, v8, a2
+; RV32-NEXT:    vmv.x.s a1, v8
+; RV32-NEXT:    csrr a2, vlenb
+; RV32-NEXT:    slli a2, a2, 5
+; RV32-NEXT:    add sp, sp, a2
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: vwreduce_add_v64i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    addi sp, sp, -16
+; RV64-NEXT:    .cfi_def_cfa_offset 16
+; RV64-NEXT:    csrr a1, vlenb
+; RV64-NEXT:    slli a1, a1, 5
+; RV64-NEXT:    sub sp, sp, a1
+; RV64-NEXT:    addi a1, a0, 128
+; RV64-NEXT:    li a2, 32
+; RV64-NEXT:    vsetvli zero, a2, e32, m8, ta, mu
+; RV64-NEXT:    vle32.v v8, (a0)
+; RV64-NEXT:    addi a0, sp, 16
+; RV64-NEXT:    vs8r.v v8, (a0) # Unknown-size Folded Spill
+; RV64-NEXT:    vle32.v v16, (a1)
+; RV64-NEXT:    vsetivli zero, 16, e32, m8, ta, mu
+; RV64-NEXT:    vslidedown.vi v24, v8, 16
+; RV64-NEXT:    csrr a0, vlenb
+; RV64-NEXT:    li a1, 24
+; RV64-NEXT:    mul a0, a0, a1
+; RV64-NEXT:    add a0, sp, a0
+; RV64-NEXT:    addi a0, a0, 16
+; RV64-NEXT:    vs8r.v v24, (a0) # Unknown-size Folded Spill
+; RV64-NEXT:    vslidedown.vi v24, v16, 16
+; RV64-NEXT:    csrr a0, vlenb
+; RV64-NEXT:    slli a0, a0, 3
+; RV64-NEXT:    add a0, sp, a0
+; RV64-NEXT:    addi a0, a0, 16
+; RV64-NEXT:    vs8r.v v24, (a0) # Unknown-size Folded Spill
+; RV64-NEXT:    vsetivli zero, 16, e32, m4, ta, mu
+; RV64-NEXT:    csrr a0, vlenb
+; RV64-NEXT:    li a1, 24
+; RV64-NEXT:    mul a0, a0, a1
+; RV64-NEXT:    add a0, sp, a0
+; RV64-NEXT:    addi a0, a0, 16
+; RV64-NEXT:    vl8re8.v v24, (a0) # Unknown-size Folded Reload
+; RV64-NEXT:    csrr a0, vlenb
+; RV64-NEXT:    slli a0, a0, 3
+; RV64-NEXT:    add a0, sp, a0
+; RV64-NEXT:    addi a0, a0, 16
+; RV64-NEXT:    vl8re8.v v8, (a0) # Unknown-size Folded Reload
+; RV64-NEXT:    vwadd.vv v0, v24, v8
+; RV64-NEXT:    csrr a0, vlenb
+; RV64-NEXT:    slli a0, a0, 4
+; RV64-NEXT:    add a0, sp, a0
+; RV64-NEXT:    addi a0, a0, 16
+; RV64-NEXT:    vs8r.v v0, (a0) # Unknown-size Folded Spill
+; RV64-NEXT:    addi a0, sp, 16
+; RV64-NEXT:    vl8re8.v v8, (a0) # Unknown-size Folded Reload
+; RV64-NEXT:    vwadd.vv v0, v8, v16
+; RV64-NEXT:    vsetvli zero, zero, e64, m8, ta, mu
+; RV64-NEXT:    csrr a0, vlenb
+; RV64-NEXT:    slli a0, a0, 4
+; RV64-NEXT:    add a0, sp, a0
+; RV64-NEXT:    addi a0, a0, 16
+; RV64-NEXT:    vl8re8.v v8, (a0) # Unknown-size Folded Reload
+; RV64-NEXT:    vadd.vv v8, v0, v8
+; RV64-NEXT:    vmv.s.x v16, zero
+; RV64-NEXT:    vredsum.vs v8, v8, v16
+; RV64-NEXT:    vmv.x.s a0, v8
+; RV64-NEXT:    csrr a1, vlenb
+; RV64-NEXT:    slli a1, a1, 5
+; RV64-NEXT:    add sp, sp, a1
+; RV64-NEXT:    addi sp, sp, 16
+; RV64-NEXT:    ret
+  %v = load <64 x i32>, <64 x i32>* %x
+  %e = sext <64 x i32> %v to <64 x i64>
+  %red = call i64 @llvm.vector.reduce.add.v64i64(<64 x i64> %e)
+  ret i64 %red
+}
+
+define i64 @vwreduce_uadd_v64i64(<64 x i32>* %x) {
+; RV32-LABEL: vwreduce_uadd_v64i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    .cfi_def_cfa_offset 16
+; RV32-NEXT:    csrr a1, vlenb
+; RV32-NEXT:    slli a1, a1, 5
+; RV32-NEXT:    sub sp, sp, a1
+; RV32-NEXT:    addi a1, a0, 128
+; RV32-NEXT:    li a2, 32
+; RV32-NEXT:    vsetvli zero, a2, e32, m8, ta, mu
+; RV32-NEXT:    vle32.v v8, (a0)
+; RV32-NEXT:    addi a0, sp, 16
+; RV32-NEXT:    vs8r.v v8, (a0) # Unknown-size Folded Spill
+; RV32-NEXT:    vle32.v v16, (a1)
+; RV32-NEXT:    vsetivli zero, 16, e32, m8, ta, mu
+; RV32-NEXT:    vslidedown.vi v24, v8, 16
+; RV32-NEXT:    csrr a0, vlenb
+; RV32-NEXT:    li a1, 24
+; RV32-NEXT:    mul a0, a0, a1
+; RV32-NEXT:    add a0, sp, a0
+; RV32-NEXT:    addi a0, a0, 16
+; RV32-NEXT:    vs8r.v v24, (a0) # Unknown-size Folded Spill
+; RV32-NEXT:    vslidedown.vi v24, v16, 16
+; RV32-NEXT:    csrr a0, vlenb
+; RV32-NEXT:    slli a0, a0, 3
+; RV32-NEXT:    add a0, sp, a0
+; RV32-NEXT:    addi a0, a0, 16
+; RV32-NEXT:    vs8r.v v24, (a0) # Unknown-size Folded Spill
+; RV32-NEXT:    vsetivli zero, 16, e32, m4, ta, mu
+; RV32-NEXT:    csrr a0, vlenb
+; RV32-NEXT:    li a1, 24
+; RV32-NEXT:    mul a0, a0, a1
+; RV32-NEXT:    add a0, sp, a0
+; RV32-NEXT:    addi a0, a0, 16
+; RV32-NEXT:    vl8re8.v v24, (a0) # Unknown-size Folded Reload
+; RV32-NEXT:    csrr a0, vlenb
+; RV32-NEXT:    slli a0, a0, 3
+; RV32-NEXT:    add a0, sp, a0
+; RV32-NEXT:    addi a0, a0, 16
+; RV32-NEXT:    vl8re8.v v8, (a0) # Unknown-size Folded Reload
+; RV32-NEXT:    vwaddu.vv v0, v24, v8
+; RV32-NEXT:    csrr a0, vlenb
+; RV32-NEXT:    slli a0, a0, 4
+; RV32-NEXT:    add a0, sp, a0
+; RV32-NEXT:    addi a0, a0, 16
+; RV32-NEXT:    vs8r.v v0, (a0) # Unknown-size Folded Spill
+; RV32-NEXT:    addi a0, sp, 16
+; RV32-NEXT:    vl8re8.v v8, (a0) # Unknown-size Folded Reload
+; RV32-NEXT:    vwaddu.vv v0, v8, v16
+; RV32-NEXT:    vsetvli zero, zero, e64, m8, ta, mu
+; RV32-NEXT:    csrr a0, vlenb
+; RV32-NEXT:    slli a0, a0, 4
+; RV32-NEXT:    add a0, sp, a0
+; RV32-NEXT:    addi a0, a0, 16
+; RV32-NEXT:    vl8re8.v v8, (a0) # Unknown-size Folded Reload
+; RV32-NEXT:    vadd.vv v8, v0, v8
+; RV32-NEXT:    vmv.s.x v16, zero
+; RV32-NEXT:    vredsum.vs v8, v8, v16
+; RV32-NEXT:    vmv.x.s a0, v8
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vsrl.vx v8, v8, a2
+; RV32-NEXT:    vmv.x.s a1, v8
+; RV32-NEXT:    csrr a2, vlenb
+; RV32-NEXT:    slli a2, a2, 5
+; RV32-NEXT:    add sp, sp, a2
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: vwreduce_uadd_v64i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    addi sp, sp, -16
+; RV64-NEXT:    .cfi_def_cfa_offset 16
+; RV64-NEXT:    csrr a1, vlenb
+; RV64-NEXT:    slli a1, a1, 5
+; RV64-NEXT:    sub sp, sp, a1
+; RV64-NEXT:    addi a1, a0, 128
+; RV64-NEXT:    li a2, 32
+; RV64-NEXT:    vsetvli zero, a2, e32, m8, ta, mu
+; RV64-NEXT:    vle32.v v8, (a0)
+; RV64-NEXT:    addi a0, sp, 16
+; RV64-NEXT:    vs8r.v v8, (a0) # Unknown-size Folded Spill
+; RV64-NEXT:    vle32.v v16, (a1)
+; RV64-NEXT:    vsetivli zero, 16, e32, m8, ta, mu
+; RV64-NEXT:    vslidedown.vi v24, v8, 16
+; RV64-NEXT:    csrr a0, vlenb
+; RV64-NEXT:    li a1, 24
+; RV64-NEXT:    mul a0, a0, a1
+; RV64-NEXT:    add a0, sp, a0
+; RV64-NEXT:    addi a0, a0, 16
+; RV64-NEXT:    vs8r.v v24, (a0) # Unknown-size Folded Spill
+; RV64-NEXT:    vslidedown.vi v24, v16, 16
+; RV64-NEXT:    csrr a0, vlenb
+; RV64-NEXT:    slli a0, a0, 3
+; RV64-NEXT:    add a0, sp, a0
+; RV64-NEXT:    addi a0, a0, 16
+; RV64-NEXT:    vs8r.v v24, (a0) # Unknown-size Folded Spill
+; RV64-NEXT:    vsetivli zero, 16, e32, m4, ta, mu
+; RV64-NEXT:    csrr a0, vlenb
+; RV64-NEXT:    li a1, 24
+; RV64-NEXT:    mul a0, a0, a1
+; RV64-NEXT:    add a0, sp, a0
+; RV64-NEXT:    addi a0, a0, 16
+; RV64-NEXT:    vl8re8.v v24, (a0) # Unknown-size Folded Reload
+; RV64-NEXT:    csrr a0, vlenb
+; RV64-NEXT:    slli a0, a0, 3
+; RV64-NEXT:    add a0, sp, a0
+; RV64-NEXT:    addi a0, a0, 16
+; RV64-NEXT:    vl8re8.v v8, (a0) # Unknown-size Folded Reload
+; RV64-NEXT:    vwaddu.vv v0, v24, v8
+; RV64-NEXT:    csrr a0, vlenb
+; RV64-NEXT:    slli a0, a0, 4
+; RV64-NEXT:    add a0, sp, a0
+; RV64-NEXT:    addi a0, a0, 16
+; RV64-NEXT:    vs8r.v v0, (a0) # Unknown-size Folded Spill
+; RV64-NEXT:    addi a0, sp, 16
+; RV64-NEXT:    vl8re8.v v8, (a0) # Unknown-size Folded Reload
+; RV64-NEXT:    vwaddu.vv v0, v8, v16
+; RV64-NEXT:    vsetvli zero, zero, e64, m8, ta, mu
+; RV64-NEXT:    csrr a0, vlenb
+; RV64-NEXT:    slli a0, a0, 4
+; RV64-NEXT:    add a0, sp, a0
+; RV64-NEXT:    addi a0, a0, 16
+; RV64-NEXT:    vl8re8.v v8, (a0) # Unknown-size Folded Reload
+; RV64-NEXT:    vadd.vv v8, v0, v8
+; RV64-NEXT:    vmv.s.x v16, zero
+; RV64-NEXT:    vredsum.vs v8, v8, v16
+; RV64-NEXT:    vmv.x.s a0, v8
+; RV64-NEXT:    csrr a1, vlenb
+; RV64-NEXT:    slli a1, a1, 5
+; RV64-NEXT:    add sp, sp, a1
+; RV64-NEXT:    addi sp, sp, 16
+; RV64-NEXT:    ret
+  %v = load <64 x i32>, <64 x i32>* %x
+  %e = zext <64 x i32> %v to <64 x i64>
+  %red = call i64 @llvm.vector.reduce.add.v64i64(<64 x i64> %e)
+  ret i64 %red
+}
+
 declare i8 @llvm.vector.reduce.and.v1i8(<1 x i8>)
 
 define i8 @vreduce_and_v1i8(<1 x i8>* %x) {
diff --git a/llvm/test/CodeGen/RISCV/rvv/vreductions-int-rv64.ll b/llvm/test/CodeGen/RISCV/rvv/vreductions-int-rv64.ll
--- a/llvm/test/CodeGen/RISCV/rvv/vreductions-int-rv64.ll
+++ b/llvm/test/CodeGen/RISCV/rvv/vreductions-int-rv64.ll
@@ -1120,6 +1120,36 @@
   ret i64 %red
 }
 
+define i64 @vwreduce_add_nxv1i32(<vscale x 1 x i32> %v) {
+; CHECK-LABEL: vwreduce_add_nxv1i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; CHECK-NEXT:    vmv.s.x v9, zero
+; CHECK-NEXT:    vsetvli a0, zero, e32, mf2, ta, mu
+; CHECK-NEXT:    vwredsum.vs v8, v8, v9
+; CHECK-NEXT:    vsetvli zero, zero, e64, m1, ta, mu
+; CHECK-NEXT:    vmv.x.s a0, v8
+; CHECK-NEXT:    ret
+  %e = sext <vscale x 1 x i32> %v to <vscale x 1 x i64>
+  %red = call i64 @llvm.vector.reduce.add.nxv1i64(<vscale x 1 x i64> %e)
+  ret i64 %red
+}
+
+define i64 @vwreduce_uadd_nxv1i32(<vscale x 1 x i32> %v) {
+; CHECK-LABEL: vwreduce_uadd_nxv1i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; CHECK-NEXT:    vmv.s.x v9, zero
+; CHECK-NEXT:    vsetvli a0, zero, e32, mf2, ta, mu
+; CHECK-NEXT:    vwredsumu.vs v8, v8, v9
+; CHECK-NEXT:    vsetvli zero, zero, e64, m1, ta, mu
+; CHECK-NEXT:    vmv.x.s a0, v8
+; CHECK-NEXT:    ret
+  %e = zext <vscale x 1 x i32> %v to <vscale x 1 x i64>
+  %red = call i64 @llvm.vector.reduce.add.nxv1i64(<vscale x 1 x i64> %e)
+  ret i64 %red
+}
+
 declare i64 @llvm.vector.reduce.umax.nxv1i64(<vscale x 1 x i64>)
 
 define i64 @vreduce_umax_nxv1i64(<vscale x 1 x i64> %v) {
@@ -1244,6 +1274,36 @@
   ret i64 %red
 }
 
+define i64 @vwreduce_add_nxv2i32(<vscale x 2 x i32> %v) {
+; CHECK-LABEL: vwreduce_add_nxv2i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; CHECK-NEXT:    vmv.s.x v9, zero
+; CHECK-NEXT:    vsetvli a0, zero, e32, m1, ta, mu
+; CHECK-NEXT:    vwredsum.vs v8, v8, v9
+; CHECK-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; CHECK-NEXT:    vmv.x.s a0, v8
+; CHECK-NEXT:    ret
+  %e = sext <vscale x 2 x i32> %v to <vscale x 2 x i64>
+  %red = call i64 @llvm.vector.reduce.add.nxv2i64(<vscale x 2 x i64> %e)
+  ret i64 %red
+}
+
+define i64 @vwreduce_uadd_nxv2i32(<vscale x 2 x i32> %v) {
+; CHECK-LABEL: vwreduce_uadd_nxv2i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; CHECK-NEXT:    vmv.s.x v9, zero
+; CHECK-NEXT:    vsetvli a0, zero, e32, m1, ta, mu
+; CHECK-NEXT:    vwredsumu.vs v8, v8, v9
+; CHECK-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; CHECK-NEXT:    vmv.x.s a0, v8
+; CHECK-NEXT:    ret
+  %e = zext <vscale x 2 x i32> %v to <vscale x 2 x i64>
+  %red = call i64 @llvm.vector.reduce.add.nxv2i64(<vscale x 2 x i64> %e)
+  ret i64 %red
+}
+
 declare i64 @llvm.vector.reduce.umax.nxv2i64(<vscale x 2 x i64>)
 
 define i64 @vreduce_umax_nxv2i64(<vscale x 2 x i64> %v) {
@@ -1368,6 +1428,36 @@
   ret i64 %red
 }
 
+define i64 @vwreduce_add_nxv4i32(<vscale x 4 x i32> %v) {
+; CHECK-LABEL: vwreduce_add_nxv4i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; CHECK-NEXT:    vmv.s.x v10, zero
+; CHECK-NEXT:    vsetvli a0, zero, e32, m2, ta, mu
+; CHECK-NEXT:    vwredsum.vs v8, v8, v10
+; CHECK-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; CHECK-NEXT:    vmv.x.s a0, v8
+; CHECK-NEXT:    ret
+  %e = sext <vscale x 4 x i32> %v to <vscale x 4 x i64>
+  %red = call i64 @llvm.vector.reduce.add.nxv4i64(<vscale x 4 x i64> %e)
+  ret i64 %red
+}
+
+define i64 @vwreduce_uadd_nxv4i32(<vscale x 4 x i32> %v) {
+; CHECK-LABEL: vwreduce_uadd_nxv4i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; CHECK-NEXT:    vmv.s.x v10, zero
+; CHECK-NEXT:    vsetvli a0, zero, e32, m2, ta, mu
+; CHECK-NEXT:    vwredsumu.vs v8, v8, v10
+; CHECK-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; CHECK-NEXT:    vmv.x.s a0, v8
+; CHECK-NEXT:    ret
+  %e = zext <vscale x 4 x i32> %v to <vscale x 4 x i64>
+  %red = call i64 @llvm.vector.reduce.add.nxv4i64(<vscale x 4 x i64> %e)
+  ret i64 %red
+}
+
 declare i64 @llvm.vector.reduce.umax.nxv4i64(<vscale x 4 x i64>)
 
 define i64 @vreduce_umax_nxv4i64(<vscale x 4 x i64> %v) {
diff --git a/llvm/test/CodeGen/RISCV/rvv/vreductions-int-vp.ll b/llvm/test/CodeGen/RISCV/rvv/vreductions-int-vp.ll
--- a/llvm/test/CodeGen/RISCV/rvv/vreductions-int-vp.ll
+++ b/llvm/test/CodeGen/RISCV/rvv/vreductions-int-vp.ll
@@ -1353,6 +1353,76 @@
   ret i64 %r
 }
 
+define signext i64 @vpwreduce_add_nxv1i32(i64 signext %s, <vscale x 1 x i32> %v, <vscale x 1 x i1> %m, i32 zeroext %evl) {
+; RV32-LABEL: vpwreduce_add_nxv1i32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    .cfi_def_cfa_offset 16
+; RV32-NEXT:    sw a1, 12(sp)
+; RV32-NEXT:    sw a0, 8(sp)
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    addi a0, sp, 8
+; RV32-NEXT:    vlse64.v v9, (a0), zero
+; RV32-NEXT:    vsetvli zero, a2, e32, mf2, tu, mu
+; RV32-NEXT:    vwredsum.vs v9, v8, v9, v0.t
+; RV32-NEXT:    vsetvli zero, zero, e64, m1, ta, mu
+; RV32-NEXT:    vmv.x.s a0, v9
+; RV32-NEXT:    li a1, 32
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vsrl.vx v8, v9, a1
+; RV32-NEXT:    vmv.x.s a1, v8
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: vpwreduce_add_nxv1i32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV64-NEXT:    vmv.s.x v9, a0
+; RV64-NEXT:    vsetvli zero, a1, e32, mf2, tu, mu
+; RV64-NEXT:    vwredsum.vs v9, v8, v9, v0.t
+; RV64-NEXT:    vsetvli zero, zero, e64, m1, ta, mu
+; RV64-NEXT:    vmv.x.s a0, v9
+; RV64-NEXT:    ret
+  %e = sext <vscale x 1 x i32> %v to <vscale x 1 x i64>
+  %r = call i64 @llvm.vp.reduce.add.nxv1i64(i64 %s, <vscale x 1 x i64> %e, <vscale x 1 x i1> %m, i32 %evl)
+  ret i64 %r
+}
+
+define signext i64 @vpwreduce_uadd_nxv1i32(i64 signext %s, <vscale x 1 x i32> %v, <vscale x 1 x i1> %m, i32 zeroext %evl) {
+; RV32-LABEL: vpwreduce_uadd_nxv1i32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    .cfi_def_cfa_offset 16
+; RV32-NEXT:    sw a1, 12(sp)
+; RV32-NEXT:    sw a0, 8(sp)
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    addi a0, sp, 8
+; RV32-NEXT:    vlse64.v v9, (a0), zero
+; RV32-NEXT:    vsetvli zero, a2, e32, mf2, tu, mu
+; RV32-NEXT:    vwredsum.vs v9, v8, v9, v0.t
+; RV32-NEXT:    vsetvli zero, zero, e64, m1, ta, mu
+; RV32-NEXT:    vmv.x.s a0, v9
+; RV32-NEXT:    li a1, 32
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vsrl.vx v8, v9, a1
+; RV32-NEXT:    vmv.x.s a1, v8
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: vpwreduce_uadd_nxv1i32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV64-NEXT:    vmv.s.x v9, a0
+; RV64-NEXT:    vsetvli zero, a1, e32, mf2, tu, mu
+; RV64-NEXT:    vwredsum.vs v9, v8, v9, v0.t
+; RV64-NEXT:    vsetvli zero, zero, e64, m1, ta, mu
+; RV64-NEXT:    vmv.x.s a0, v9
+; RV64-NEXT:    ret
+  %e = sext <vscale x 1 x i32> %v to <vscale x 1 x i64>
+  %r = call i64 @llvm.vp.reduce.add.nxv1i64(i64 %s, <vscale x 1 x i64> %e, <vscale x 1 x i1> %m, i32 %evl)
+  ret i64 %r
+}
+
 declare i64 @llvm.vp.reduce.umax.nxv1i64(i64, <vscale x 1 x i64>, <vscale x 1 x i1>, i32)
 
 define signext i64 @vpreduce_umax_nxv1i64(i64 signext %s, <vscale x 1 x i64> %v, <vscale x 1 x i1> %m, i32 zeroext %evl) {
@@ -1625,6 +1695,76 @@
   ret i64 %r
 }
 
+define signext i64 @vwpreduce_add_nxv2i32(i64 signext %s, <vscale x 2 x i32> %v, <vscale x 2 x i1> %m, i32 zeroext %evl) {
+; RV32-LABEL: vwpreduce_add_nxv2i32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    .cfi_def_cfa_offset 16
+; RV32-NEXT:    sw a1, 12(sp)
+; RV32-NEXT:    sw a0, 8(sp)
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    addi a0, sp, 8
+; RV32-NEXT:    vlse64.v v9, (a0), zero
+; RV32-NEXT:    vsetvli zero, a2, e32, m1, tu, mu
+; RV32-NEXT:    vwredsum.vs v9, v8, v9, v0.t
+; RV32-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; RV32-NEXT:    vmv.x.s a0, v9
+; RV32-NEXT:    li a1, 32
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vsrl.vx v8, v9, a1
+; RV32-NEXT:    vmv.x.s a1, v8
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: vwpreduce_add_nxv2i32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV64-NEXT:    vmv.s.x v9, a0
+; RV64-NEXT:    vsetvli zero, a1, e32, m1, tu, mu
+; RV64-NEXT:    vwredsum.vs v9, v8, v9, v0.t
+; RV64-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; RV64-NEXT:    vmv.x.s a0, v9
+; RV64-NEXT:    ret
+  %e = sext <vscale x 2 x i32> %v to <vscale x 2 x i64>
+  %r = call i64 @llvm.vp.reduce.add.nxv2i64(i64 %s, <vscale x 2 x i64> %e, <vscale x 2 x i1> %m, i32 %evl)
+  ret i64 %r
+}
+
+define signext i64 @vwpreduce_uadd_nxv2i32(i64 signext %s, <vscale x 2 x i32> %v, <vscale x 2 x i1> %m, i32 zeroext %evl) {
+; RV32-LABEL: vwpreduce_uadd_nxv2i32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    .cfi_def_cfa_offset 16
+; RV32-NEXT:    sw a1, 12(sp)
+; RV32-NEXT:    sw a0, 8(sp)
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    addi a0, sp, 8
+; RV32-NEXT:    vlse64.v v9, (a0), zero
+; RV32-NEXT:    vsetvli zero, a2, e32, m1, tu, mu
+; RV32-NEXT:    vwredsum.vs v9, v8, v9, v0.t
+; RV32-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; RV32-NEXT:    vmv.x.s a0, v9
+; RV32-NEXT:    li a1, 32
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vsrl.vx v8, v9, a1
+; RV32-NEXT:    vmv.x.s a1, v8
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: vwpreduce_uadd_nxv2i32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV64-NEXT:    vmv.s.x v9, a0
+; RV64-NEXT:    vsetvli zero, a1, e32, m1, tu, mu
+; RV64-NEXT:    vwredsum.vs v9, v8, v9, v0.t
+; RV64-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; RV64-NEXT:    vmv.x.s a0, v9
+; RV64-NEXT:    ret
+  %e = sext <vscale x 2 x i32> %v to <vscale x 2 x i64>
+  %r = call i64 @llvm.vp.reduce.add.nxv2i64(i64 %s, <vscale x 2 x i64> %e, <vscale x 2 x i1> %m, i32 %evl)
+  ret i64 %r
+}
+
 declare i64 @llvm.vp.reduce.umax.nxv2i64(i64, <vscale x 2 x i64>, <vscale x 2 x i1>, i32)
 
 define signext i64 @vpreduce_umax_nxv2i64(i64 signext %s, <vscale x 2 x i64> %v, <vscale x 2 x i1> %m, i32 zeroext %evl) {
@@ -1897,6 +2037,76 @@
   ret i64 %r
 }
 
+define signext i64 @vpwreduce_add_nxv4i32(i64 signext %s, <vscale x 4 x i32> %v, <vscale x 4 x i1> %m, i32 zeroext %evl) {
+; RV32-LABEL: vpwreduce_add_nxv4i32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    .cfi_def_cfa_offset 16
+; RV32-NEXT:    sw a1, 12(sp)
+; RV32-NEXT:    sw a0, 8(sp)
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    addi a0, sp, 8
+; RV32-NEXT:    vlse64.v v10, (a0), zero
+; RV32-NEXT:    vsetvli zero, a2, e32, m2, tu, mu
+; RV32-NEXT:    vwredsum.vs v10, v8, v10, v0.t
+; RV32-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; RV32-NEXT:    vmv.x.s a0, v10
+; RV32-NEXT:    li a1, 32
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vsrl.vx v8, v10, a1
+; RV32-NEXT:    vmv.x.s a1, v8
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: vpwreduce_add_nxv4i32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV64-NEXT:    vmv.s.x v10, a0
+; RV64-NEXT:    vsetvli zero, a1, e32, m2, tu, mu
+; RV64-NEXT:    vwredsum.vs v10, v8, v10, v0.t
+; RV64-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; RV64-NEXT:    vmv.x.s a0, v10
+; RV64-NEXT:    ret
+  %e = sext <vscale x 4 x i32> %v to <vscale x 4 x i64>
+  %r = call i64 @llvm.vp.reduce.add.nxv4i64(i64 %s, <vscale x 4 x i64> %e, <vscale x 4 x i1> %m, i32 %evl)
+  ret i64 %r
+}
+
+define signext i64 @vpwreduce_uadd_nxv4i32(i64 signext %s, <vscale x 4 x i32> %v, <vscale x 4 x i1> %m, i32 zeroext %evl) {
+; RV32-LABEL: vpwreduce_uadd_nxv4i32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    .cfi_def_cfa_offset 16
+; RV32-NEXT:    sw a1, 12(sp)
+; RV32-NEXT:    sw a0, 8(sp)
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    addi a0, sp, 8
+; RV32-NEXT:    vlse64.v v10, (a0), zero
+; RV32-NEXT:    vsetvli zero, a2, e32, m2, tu, mu
+; RV32-NEXT:    vwredsumu.vs v10, v8, v10, v0.t
+; RV32-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; RV32-NEXT:    vmv.x.s a0, v10
+; RV32-NEXT:    li a1, 32
+; RV32-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV32-NEXT:    vsrl.vx v8, v10, a1
+; RV32-NEXT:    vmv.x.s a1, v8
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: vpwreduce_uadd_nxv4i32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetivli zero, 1, e64, m1, ta, mu
+; RV64-NEXT:    vmv.s.x v10, a0
+; RV64-NEXT:    vsetvli zero, a1, e32, m2, tu, mu
+; RV64-NEXT:    vwredsumu.vs v10, v8, v10, v0.t
+; RV64-NEXT:    vsetivli zero, 0, e64, m1, ta, mu
+; RV64-NEXT:    vmv.x.s a0, v10
+; RV64-NEXT:    ret
+  %e = zext <vscale x 4 x i32> %v to <vscale x 4 x i64>
+  %r = call i64 @llvm.vp.reduce.add.nxv4i64(i64 %s, <vscale x 4 x i64> %e, <vscale x 4 x i1> %m, i32 %evl)
+  ret i64 %r
+}
+
 declare i64 @llvm.vp.reduce.umax.nxv4i64(i64, <vscale x 4 x i64>, <vscale x 4 x i1>, i32)
 
 define signext i64 @vpreduce_umax_nxv4i64(i64 signext %s, <vscale x 4 x i64> %v, <vscale x 4 x i1> %m, i32 zeroext %evl) {