[RISCV] Improve register allocation for masked vwadd(u).wv, vwsub(u).wv, vfwadd.wv, and vfwsub.wv.

[craig.topper]

Summary

The first source has the same EEW as the destination, but we're
using earlyclobber which prevents them from ever being the same
register.

To workaround this, add a special TIED pseudo to use whenever the
first source and merge operand are the same value. This allows
us to use a single operand for the merge operand and first source
which we can then tie to the destination. A tied source disables
earlyclobber for that operand.

[craig.topper]

Rebase after pre-commiting tests.

[craig.topper]

Fix accidental test name changes

[arcbbb]

LGTM

llvm/lib/Target/RISCV/RISCVInstrInfoVPseudos.td

string VInst = !subst("_M8", "",
                  !subst("_B2", "",
                  !subst("_B4", "",
                  !subst("_B8", "",
                  !subst("_B16", "",
                  !subst("_B32", "",
                  !subst("_B64", "",
                  !subst("_MASK", "",
                  !subst("_COMMUTABLE", "",
+                 !subst("_TIED", "",
                  !subst("F16", "F",
                  !subst("F32", "F",
                  !subst("F64", "F",
-                 !subst("Pseudo", "", PseudoInst))))))))))))))))))));
+                 !subst("Pseudo", "", PseudoInst)))))))))))))))))))));
 }
 
 // The destination vector register group for a masked vector instruction cannot
 // overlap the source mask register (v0), unless the destination vector register
 // is being written with a mask value (e.g., comparisons) or the scalar result
 // of a reduction.
 class GetVRegNoV0<VReg VRegClass> {
   VReg R = !cond(!eq(VRegClass, VR) : VRNoV0,
class VPseudoBinaryMOutMask<VReg RetClass,
   let hasSideEffects = 0;
   let Constraints = Join<[Constraint, "$rd = $merge"], ",">.ret;
   let HasVLOp = 1;
   let HasSEWOp = 1;
   let HasMergeOp = 1;
   let BaseInstr = !cast<Instruction>(PseudoToVInst<NAME>.VInst);
 }
 
+// Special version of VPseudoBinaryMask where we pretend the first source is
+// tied to the destination so we can workaround the earlyclobber constraint.
+// This allows maskedoff and rs2 to be the same register.
+class VPseudoTiedBinaryMask<VReg RetClass,
+                            DAGOperand Op2Class,
+                            string Constraint> :
+        Pseudo<(outs GetVRegNoV0<RetClass>.R:$rd),
+                (ins GetVRegNoV0<RetClass>.R:$merge,
+                     Op2Class:$rs1,
+                     VMaskOp:$vm, GPR:$vl, ixlenimm:$sew), []>,
+        RISCVVPseudo {
+  let mayLoad = 0;
+  let mayStore = 0;
+  let hasSideEffects = 0;
+  let Constraints = Join<[Constraint, "$rd = $merge"], ",">.ret;
+  let HasVLOp = 1;
+  let HasSEWOp = 1;
+  let HasMergeOp = 0; // Merge is also rs2.
+  let BaseInstr = !cast<Instruction>(PseudoToVInst<NAME>.VInst);
+}
+
 class VPseudoBinaryCarryIn<VReg RetClass,
                            VReg Op1Class,
                            DAGOperand Op2Class,
                            LMULInfo MInfo,
                            bit CarryIn,
                            string Constraint> :
         Pseudo<(outs RetClass:$rd),
                !if(CarryIn,
multiclass VPseudoBinaryEmul<VReg RetClass,
   let VLMul = lmul.value in {
     def "_" # lmul.MX # "_" # emul.MX : VPseudoBinaryNoMask<RetClass, Op1Class, Op2Class,
                                                             Constraint>;
     def "_" # lmul.MX # "_" # emul.MX # "_MASK" : VPseudoBinaryMask<RetClass, Op1Class, Op2Class,
                                                                     Constraint>;
   }
 }
 
+multiclass VPseudoTiedBinary<VReg RetClass,
+                             DAGOperand Op2Class,
+                             LMULInfo MInfo,
+                             string Constraint = ""> {
+  let VLMul = MInfo.value in {
+    def "_" # MInfo.MX # "_MASK_TIED" : VPseudoTiedBinaryMask<RetClass, Op2Class,
+                                                         Constraint>;
+  }
+}
+
 multiclass VPseudoBinaryV_VV<string Constraint = ""> {
   foreach m = MxList.m in
     defm _VV : VPseudoBinary<m.vrclass, m.vrclass, m.vrclass, m, Constraint>;
 }
 
 multiclass VPseudoBinaryV_VV_EEW<int eew, string Constraint = ""> {
   foreach m = MxList.m in {
     foreach sew = EEWList in {
multiclass VPseudoBinaryW_VF {
   foreach m = MxListW.m in
     foreach f = FPListW.fpinfo in
       defm "_V" # f.FX : VPseudoBinary<m.wvrclass, m.vrclass,
                                        f.fprclass, m,
                                        "@earlyclobber $rd">;
 }
 
 multiclass VPseudoBinaryW_WV {
-  foreach m = MxListW.m in
+  foreach m = MxListW.m in {
     defm _WV : VPseudoBinary<m.wvrclass, m.wvrclass, m.vrclass, m,
                              "@earlyclobber $rd">;
+    defm _WV : VPseudoTiedBinary<m.wvrclass, m.vrclass, m,
+                                 "@earlyclobber $rd">;
+  }
 }
 
 multiclass VPseudoBinaryW_WX {
   foreach m = MxListW.m in
     defm "_WX" : VPseudoBinary<m.wvrclass, m.wvrclass, GPR, m>;
 }
 
 multiclass VPseudoBinaryW_WF {
Pat<(result_type (!cast<Intrinsic>(intrinsic_name#"_mask")
                    (mask_type V0),
                    VLOpFrag)),
                    (!cast<Instruction>(inst#"_MASK")
                    (result_type result_reg_class:$merge),
                    (op1_type op1_reg_class:$rs1),
                    (op2_type op2_kind:$rs2),
                    (mask_type V0), GPR:$vl, sew)>;
 
+class VPatTiedBinaryMask<string intrinsic_name,
+                         string inst,
+                         ValueType result_type,
+                         ValueType op2_type,
+                         ValueType mask_type,
+                         int sew,
+                         VReg result_reg_class,
+                         DAGOperand op2_kind> :
+  Pat<(result_type (!cast<Intrinsic>(intrinsic_name#"_mask")
+                   (result_type result_reg_class:$merge),
+                   (result_type result_reg_class:$merge),
+                   (op2_type op2_kind:$rs2),
+                   (mask_type V0),
+                   (XLenVT (VLOp GPR:$vl)))),
+                   (!cast<Instruction>(inst#"_MASK_TIED")
+                   (result_type result_reg_class:$merge),
+                   (op2_type op2_kind:$rs2),
+                   (mask_type V0), GPR:$vl, sew)>;
+
 class VPatTernaryNoMask<string intrinsic,
                         string inst,
                         string kind,
                         ValueType result_type,
                         ValueType op1_type,
                         ValueType op2_type,
                         ValueType mask_type,
                         int sew,
multiclass VPatBinaryW_VX<string intrinsic, string instruction,
   }
 }
 
 multiclass VPatBinaryW_WV<string intrinsic, string instruction,
                           list<VTypeInfoToWide> vtilist> {
   foreach VtiToWti = vtilist in {
     defvar Vti = VtiToWti.Vti;
     defvar Wti = VtiToWti.Wti;
+    let AddedComplexity = 1 in
+    def : VPatTiedBinaryMask<intrinsic, instruction # "_WV_" # Vti.LMul.MX,
+                             Wti.Vector, Vti.Vector, Vti.Mask,
+                             Vti.Log2SEW, Wti.RegClass, Vti.RegClass>;
     defm : VPatBinary<intrinsic, instruction # "_WV_" # Vti.LMul.MX,
                       Wti.Vector, Wti.Vector, Vti.Vector, Vti.Mask,
                       Vti.Log2SEW, Wti.RegClass,
                       Wti.RegClass, Vti.RegClass>;
   }
 }
 
 multiclass VPatBinaryW_WX<string intrinsic, string instruction,

llvm/test/CodeGen/RISCV/rvv/vfwadd.w-rv32.ll

entry:
 
   ret <vscale x 8 x double> %a
 }
 
 define <vscale x 1 x float> @intrinsic_vfwadd.w_mask_wv_tie_nxv1f32_nxv1f32_nxv1f16(<vscale x 1 x float> %0, <vscale x 1 x half> %1, <vscale x 1 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwadd.w_mask_wv_tie_nxv1f32_nxv1f32_nxv1f16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf4,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vfwadd.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vfwadd.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x float> @llvm.riscv.vfwadd.w.mask.nxv1f32.nxv1f16(
     <vscale x 1 x float> %0,
     <vscale x 1 x float> %0,
     <vscale x 1 x half> %1,
     <vscale x 1 x i1> %2,
     i32 %3)
 
   ret <vscale x 1 x float> %a
 }
 
 define <vscale x 2 x float> @intrinsic_vfwadd.w_mask_wv_tie_nxv2f32_nxv2f32_nxv2f16(<vscale x 2 x float> %0, <vscale x 2 x half> %1, <vscale x 2 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwadd.w_mask_wv_tie_nxv2f32_nxv2f32_nxv2f16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vfwadd.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vfwadd.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x float> @llvm.riscv.vfwadd.w.mask.nxv2f32.nxv2f16(
     <vscale x 2 x float> %0,
     <vscale x 2 x float> %0,
     <vscale x 2 x half> %1,
     <vscale x 2 x i1> %2,
     i32 %3)
 
   ret <vscale x 2 x float> %a
 }
 
 define <vscale x 4 x float> @intrinsic_vfwadd.w_mask_wv_tie_nxv4f32_nxv4f32_nxv4f16(<vscale x 4 x float> %0, <vscale x 4 x half> %1, <vscale x 4 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwadd.w_mask_wv_tie_nxv4f32_nxv4f32_nxv4f16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vfwadd.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vfwadd.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x float> @llvm.riscv.vfwadd.w.mask.nxv4f32.nxv4f16(
     <vscale x 4 x float> %0,
     <vscale x 4 x float> %0,
     <vscale x 4 x half> %1,
     <vscale x 4 x i1> %2,
     i32 %3)
 
   ret <vscale x 4 x float> %a
 }
 
 define <vscale x 8 x float> @intrinsic_vfwadd.w_mask_wv_tie_nxv8f32_nxv8f32_nxv8f16(<vscale x 8 x float> %0, <vscale x 8 x half> %1, <vscale x 8 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwadd.w_mask_wv_tie_nxv8f32_nxv8f32_nxv8f16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vfwadd.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vfwadd.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x float> @llvm.riscv.vfwadd.w.mask.nxv8f32.nxv8f16(
     <vscale x 8 x float> %0,
     <vscale x 8 x float> %0,
     <vscale x 8 x half> %1,
     <vscale x 8 x i1> %2,
     i32 %3)
 
   ret <vscale x 8 x float> %a
 }
 
 define <vscale x 16 x float> @intrinsic_vfwadd.w_mask_wv_tie_nxv16f32_nxv16f32_nxv16f16(<vscale x 16 x float> %0, <vscale x 16 x half> %1, <vscale x 16 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwadd.w_mask_wv_tie_nxv16f32_nxv16f32_nxv16f16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vfwadd.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vfwadd.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 16 x float> @llvm.riscv.vfwadd.w.mask.nxv16f32.nxv16f16(
     <vscale x 16 x float> %0,
     <vscale x 16 x float> %0,
     <vscale x 16 x half> %1,
     <vscale x 16 x i1> %2,
     i32 %3)
 
   ret <vscale x 16 x float> %a
 }
 
 define <vscale x 1 x double> @intrinsic_vfwadd.w_mask_wv_tie_nxv1f64_nxv1f64_nxv1f32(<vscale x 1 x double> %0, <vscale x 1 x float> %1, <vscale x 1 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwadd.w_mask_wv_tie_nxv1f64_nxv1f64_nxv1f32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vfwadd.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vfwadd.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x double> @llvm.riscv.vfwadd.w.mask.nxv1f64.nxv1f32(
     <vscale x 1 x double> %0,
     <vscale x 1 x double> %0,
     <vscale x 1 x float> %1,
     <vscale x 1 x i1> %2,
     i32 %3)
 
   ret <vscale x 1 x double> %a
 }
 
 define <vscale x 2 x double> @intrinsic_vfwadd.w_mask_wv_tie_nxv2f64_nxv2f64_nxv2f32(<vscale x 2 x double> %0, <vscale x 2 x float> %1, <vscale x 2 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwadd.w_mask_wv_tie_nxv2f64_nxv2f64_nxv2f32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vfwadd.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vfwadd.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x double> @llvm.riscv.vfwadd.w.mask.nxv2f64.nxv2f32(
     <vscale x 2 x double> %0,
     <vscale x 2 x double> %0,
     <vscale x 2 x float> %1,
     <vscale x 2 x i1> %2,
     i32 %3)
 
   ret <vscale x 2 x double> %a
 }
 
 define <vscale x 4 x double> @intrinsic_vfwadd.w_mask_wv_tie_nxv4f64_nxv4f64_nxv4f32(<vscale x 4 x double> %0, <vscale x 4 x float> %1, <vscale x 4 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwadd.w_mask_wv_tie_nxv4f64_nxv4f64_nxv4f32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vfwadd.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vfwadd.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x double> @llvm.riscv.vfwadd.w.mask.nxv4f64.nxv4f32(
     <vscale x 4 x double> %0,
     <vscale x 4 x double> %0,
     <vscale x 4 x float> %1,
     <vscale x 4 x i1> %2,
     i32 %3)
 
   ret <vscale x 4 x double> %a
 }
 
 define <vscale x 8 x double> @intrinsic_vfwadd.w_mask_wv_tie_nxv8f64_nxv8f64_nxv8f32(<vscale x 8 x double> %0, <vscale x 8 x float> %1, <vscale x 8 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwadd.w_mask_wv_tie_nxv8f64_nxv8f64_nxv8f32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vfwadd.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vfwadd.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x double> @llvm.riscv.vfwadd.w.mask.nxv8f64.nxv8f32(
     <vscale x 8 x double> %0,
     <vscale x 8 x double> %0,
     <vscale x 8 x float> %1,
     <vscale x 8 x i1> %2,
     i32 %3)

llvm/test/CodeGen/RISCV/rvv/vfwadd.w-rv64.ll

entry:
 
   ret <vscale x 8 x double> %a
 }
 
 define <vscale x 1 x float> @intrinsic_vfwadd.w_mask_wv_tie_nxv1f32_nxv1f32_nxv1f16(<vscale x 1 x float> %0, <vscale x 1 x half> %1, <vscale x 1 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwadd.w_mask_wv_tie_nxv1f32_nxv1f32_nxv1f16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf4,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vfwadd.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vfwadd.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x float> @llvm.riscv.vfwadd.w.mask.nxv1f32.nxv1f16(
     <vscale x 1 x float> %0,
     <vscale x 1 x float> %0,
     <vscale x 1 x half> %1,
     <vscale x 1 x i1> %2,
     i64 %3)
 
   ret <vscale x 1 x float> %a
 }
 
 define <vscale x 2 x float> @intrinsic_vfwadd.w_mask_wv_tie_nxv2f32_nxv2f32_nxv2f16(<vscale x 2 x float> %0, <vscale x 2 x half> %1, <vscale x 2 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwadd.w_mask_wv_tie_nxv2f32_nxv2f32_nxv2f16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vfwadd.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vfwadd.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x float> @llvm.riscv.vfwadd.w.mask.nxv2f32.nxv2f16(
     <vscale x 2 x float> %0,
     <vscale x 2 x float> %0,
     <vscale x 2 x half> %1,
     <vscale x 2 x i1> %2,
     i64 %3)
 
   ret <vscale x 2 x float> %a
 }
 
 define <vscale x 4 x float> @intrinsic_vfwadd.w_mask_wv_tie_nxv4f32_nxv4f32_nxv4f16(<vscale x 4 x float> %0, <vscale x 4 x half> %1, <vscale x 4 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwadd.w_mask_wv_tie_nxv4f32_nxv4f32_nxv4f16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vfwadd.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vfwadd.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x float> @llvm.riscv.vfwadd.w.mask.nxv4f32.nxv4f16(
     <vscale x 4 x float> %0,
     <vscale x 4 x float> %0,
     <vscale x 4 x half> %1,
     <vscale x 4 x i1> %2,
     i64 %3)
 
   ret <vscale x 4 x float> %a
 }
 
 define <vscale x 8 x float> @intrinsic_vfwadd.w_mask_wv_tie_nxv8f32_nxv8f32_nxv8f16(<vscale x 8 x float> %0, <vscale x 8 x half> %1, <vscale x 8 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwadd.w_mask_wv_tie_nxv8f32_nxv8f32_nxv8f16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vfwadd.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vfwadd.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x float> @llvm.riscv.vfwadd.w.mask.nxv8f32.nxv8f16(
     <vscale x 8 x float> %0,
     <vscale x 8 x float> %0,
     <vscale x 8 x half> %1,
     <vscale x 8 x i1> %2,
     i64 %3)
 
   ret <vscale x 8 x float> %a
 }
 
 define <vscale x 16 x float> @intrinsic_vfwadd.w_mask_wv_tie_nxv16f32_nxv16f32_nxv16f16(<vscale x 16 x float> %0, <vscale x 16 x half> %1, <vscale x 16 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwadd.w_mask_wv_tie_nxv16f32_nxv16f32_nxv16f16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vfwadd.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vfwadd.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 16 x float> @llvm.riscv.vfwadd.w.mask.nxv16f32.nxv16f16(
     <vscale x 16 x float> %0,
     <vscale x 16 x float> %0,
     <vscale x 16 x half> %1,
     <vscale x 16 x i1> %2,
     i64 %3)
 
   ret <vscale x 16 x float> %a
 }
 
 define <vscale x 1 x double> @intrinsic_vfwadd.w_mask_wv_tie_nxv1f64_nxv1f64_nxv1f32(<vscale x 1 x double> %0, <vscale x 1 x float> %1, <vscale x 1 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwadd.w_mask_wv_tie_nxv1f64_nxv1f64_nxv1f32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vfwadd.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vfwadd.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x double> @llvm.riscv.vfwadd.w.mask.nxv1f64.nxv1f32(
     <vscale x 1 x double> %0,
     <vscale x 1 x double> %0,
     <vscale x 1 x float> %1,
     <vscale x 1 x i1> %2,
     i64 %3)
 
   ret <vscale x 1 x double> %a
 }
 
 define <vscale x 2 x double> @intrinsic_vfwadd.w_mask_wv_tie_nxv2f64_nxv2f64_nxv2f32(<vscale x 2 x double> %0, <vscale x 2 x float> %1, <vscale x 2 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwadd.w_mask_wv_tie_nxv2f64_nxv2f64_nxv2f32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vfwadd.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vfwadd.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x double> @llvm.riscv.vfwadd.w.mask.nxv2f64.nxv2f32(
     <vscale x 2 x double> %0,
     <vscale x 2 x double> %0,
     <vscale x 2 x float> %1,
     <vscale x 2 x i1> %2,
     i64 %3)
 
   ret <vscale x 2 x double> %a
 }
 
 define <vscale x 4 x double> @intrinsic_vfwadd.w_mask_wv_tie_nxv4f64_nxv4f64_nxv4f32(<vscale x 4 x double> %0, <vscale x 4 x float> %1, <vscale x 4 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwadd.w_mask_wv_tie_nxv4f64_nxv4f64_nxv4f32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vfwadd.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vfwadd.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x double> @llvm.riscv.vfwadd.w.mask.nxv4f64.nxv4f32(
     <vscale x 4 x double> %0,
     <vscale x 4 x double> %0,
     <vscale x 4 x float> %1,
     <vscale x 4 x i1> %2,
     i64 %3)
 
   ret <vscale x 4 x double> %a
 }
 
 define <vscale x 8 x double> @intrinsic_vfwadd.w_mask_wv_tie_nxv8f64_nxv8f64_nxv8f32(<vscale x 8 x double> %0, <vscale x 8 x float> %1, <vscale x 8 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwadd.w_mask_wv_tie_nxv8f64_nxv8f64_nxv8f32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vfwadd.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vfwadd.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x double> @llvm.riscv.vfwadd.w.mask.nxv8f64.nxv8f32(
     <vscale x 8 x double> %0,
     <vscale x 8 x double> %0,
     <vscale x 8 x float> %1,
     <vscale x 8 x i1> %2,
     i64 %3)

llvm/test/CodeGen/RISCV/rvv/vfwsub.w-rv32.ll

entry:
 
   ret <vscale x 8 x double> %a
 }
 
 define <vscale x 1 x float> @intrinsic_vfwsub.w_mask_wv_tie_nxv1f32_nxv1f32_nxv1f16(<vscale x 1 x float> %0, <vscale x 1 x half> %1, <vscale x 1 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwsub.w_mask_wv_tie_nxv1f32_nxv1f32_nxv1f16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf4,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vfwsub.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vfwsub.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x float> @llvm.riscv.vfwsub.w.mask.nxv1f32.nxv1f16(
     <vscale x 1 x float> %0,
     <vscale x 1 x float> %0,
     <vscale x 1 x half> %1,
     <vscale x 1 x i1> %2,
     i32 %3)
 
   ret <vscale x 1 x float> %a
 }
 
 define <vscale x 2 x float> @intrinsic_vfwsub.w_mask_wv_tie_nxv2f32_nxv2f32_nxv2f16(<vscale x 2 x float> %0, <vscale x 2 x half> %1, <vscale x 2 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwsub.w_mask_wv_tie_nxv2f32_nxv2f32_nxv2f16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vfwsub.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vfwsub.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x float> @llvm.riscv.vfwsub.w.mask.nxv2f32.nxv2f16(
     <vscale x 2 x float> %0,
     <vscale x 2 x float> %0,
     <vscale x 2 x half> %1,
     <vscale x 2 x i1> %2,
     i32 %3)
 
   ret <vscale x 2 x float> %a
 }
 
 define <vscale x 4 x float> @intrinsic_vfwsub.w_mask_wv_tie_nxv4f32_nxv4f32_nxv4f16(<vscale x 4 x float> %0, <vscale x 4 x half> %1, <vscale x 4 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwsub.w_mask_wv_tie_nxv4f32_nxv4f32_nxv4f16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vfwsub.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vfwsub.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x float> @llvm.riscv.vfwsub.w.mask.nxv4f32.nxv4f16(
     <vscale x 4 x float> %0,
     <vscale x 4 x float> %0,
     <vscale x 4 x half> %1,
     <vscale x 4 x i1> %2,
     i32 %3)
 
   ret <vscale x 4 x float> %a
 }
 
 define <vscale x 8 x float> @intrinsic_vfwsub.w_mask_wv_tie_nxv8f32_nxv8f32_nxv8f16(<vscale x 8 x float> %0, <vscale x 8 x half> %1, <vscale x 8 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwsub.w_mask_wv_tie_nxv8f32_nxv8f32_nxv8f16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vfwsub.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vfwsub.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x float> @llvm.riscv.vfwsub.w.mask.nxv8f32.nxv8f16(
     <vscale x 8 x float> %0,
     <vscale x 8 x float> %0,
     <vscale x 8 x half> %1,
     <vscale x 8 x i1> %2,
     i32 %3)
 
   ret <vscale x 8 x float> %a
 }
 
 define <vscale x 16 x float> @intrinsic_vfwsub.w_mask_wv_tie_nxv16f32_nxv16f32_nxv16f16(<vscale x 16 x float> %0, <vscale x 16 x half> %1, <vscale x 16 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwsub.w_mask_wv_tie_nxv16f32_nxv16f32_nxv16f16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vfwsub.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vfwsub.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 16 x float> @llvm.riscv.vfwsub.w.mask.nxv16f32.nxv16f16(
     <vscale x 16 x float> %0,
     <vscale x 16 x float> %0,
     <vscale x 16 x half> %1,
     <vscale x 16 x i1> %2,
     i32 %3)
 
   ret <vscale x 16 x float> %a
 }
 
 define <vscale x 1 x double> @intrinsic_vfwsub.w_mask_wv_tie_nxv1f64_nxv1f64_nxv1f32(<vscale x 1 x double> %0, <vscale x 1 x float> %1, <vscale x 1 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwsub.w_mask_wv_tie_nxv1f64_nxv1f64_nxv1f32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vfwsub.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vfwsub.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x double> @llvm.riscv.vfwsub.w.mask.nxv1f64.nxv1f32(
     <vscale x 1 x double> %0,
     <vscale x 1 x double> %0,
     <vscale x 1 x float> %1,
     <vscale x 1 x i1> %2,
     i32 %3)
 
   ret <vscale x 1 x double> %a
 }
 
 define <vscale x 2 x double> @intrinsic_vfwsub.w_mask_wv_tie_nxv2f64_nxv2f64_nxv2f32(<vscale x 2 x double> %0, <vscale x 2 x float> %1, <vscale x 2 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwsub.w_mask_wv_tie_nxv2f64_nxv2f64_nxv2f32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vfwsub.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vfwsub.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x double> @llvm.riscv.vfwsub.w.mask.nxv2f64.nxv2f32(
     <vscale x 2 x double> %0,
     <vscale x 2 x double> %0,
     <vscale x 2 x float> %1,
     <vscale x 2 x i1> %2,
     i32 %3)
 
   ret <vscale x 2 x double> %a
 }
 
 define <vscale x 4 x double> @intrinsic_vfwsub.w_mask_wv_tie_nxv4f64_nxv4f64_nxv4f32(<vscale x 4 x double> %0, <vscale x 4 x float> %1, <vscale x 4 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwsub.w_mask_wv_tie_nxv4f64_nxv4f64_nxv4f32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vfwsub.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vfwsub.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x double> @llvm.riscv.vfwsub.w.mask.nxv4f64.nxv4f32(
     <vscale x 4 x double> %0,
     <vscale x 4 x double> %0,
     <vscale x 4 x float> %1,
     <vscale x 4 x i1> %2,
     i32 %3)
 
   ret <vscale x 4 x double> %a
 }
 
 define <vscale x 8 x double> @intrinsic_vfwsub.w_mask_wv_tie_nxv8f64_nxv8f64_nxv8f32(<vscale x 8 x double> %0, <vscale x 8 x float> %1, <vscale x 8 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwsub.w_mask_wv_tie_nxv8f64_nxv8f64_nxv8f32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vfwsub.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vfwsub.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x double> @llvm.riscv.vfwsub.w.mask.nxv8f64.nxv8f32(
     <vscale x 8 x double> %0,
     <vscale x 8 x double> %0,
     <vscale x 8 x float> %1,
     <vscale x 8 x i1> %2,
     i32 %3)

llvm/test/CodeGen/RISCV/rvv/vfwsub.w-rv64.ll

entry:
 
   ret <vscale x 8 x double> %a
 }
 
 define <vscale x 1 x float> @intrinsic_vfwsub.w_mask_wv_tie_nxv1f32_nxv1f32_nxv1f16(<vscale x 1 x float> %0, <vscale x 1 x half> %1, <vscale x 1 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwsub.w_mask_wv_tie_nxv1f32_nxv1f32_nxv1f16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf4,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vfwsub.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vfwsub.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x float> @llvm.riscv.vfwsub.w.mask.nxv1f32.nxv1f16(
     <vscale x 1 x float> %0,
     <vscale x 1 x float> %0,
     <vscale x 1 x half> %1,
     <vscale x 1 x i1> %2,
     i64 %3)
 
   ret <vscale x 1 x float> %a
 }
 
 define <vscale x 2 x float> @intrinsic_vfwsub.w_mask_wv_tie_nxv2f32_nxv2f32_nxv2f16(<vscale x 2 x float> %0, <vscale x 2 x half> %1, <vscale x 2 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwsub.w_mask_wv_tie_nxv2f32_nxv2f32_nxv2f16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vfwsub.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vfwsub.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x float> @llvm.riscv.vfwsub.w.mask.nxv2f32.nxv2f16(
     <vscale x 2 x float> %0,
     <vscale x 2 x float> %0,
     <vscale x 2 x half> %1,
     <vscale x 2 x i1> %2,
     i64 %3)
 
   ret <vscale x 2 x float> %a
 }
 
 define <vscale x 4 x float> @intrinsic_vfwsub.w_mask_wv_tie_nxv4f32_nxv4f32_nxv4f16(<vscale x 4 x float> %0, <vscale x 4 x half> %1, <vscale x 4 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwsub.w_mask_wv_tie_nxv4f32_nxv4f32_nxv4f16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vfwsub.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vfwsub.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x float> @llvm.riscv.vfwsub.w.mask.nxv4f32.nxv4f16(
     <vscale x 4 x float> %0,
     <vscale x 4 x float> %0,
     <vscale x 4 x half> %1,
     <vscale x 4 x i1> %2,
     i64 %3)
 
   ret <vscale x 4 x float> %a
 }
 
 define <vscale x 8 x float> @intrinsic_vfwsub.w_mask_wv_tie_nxv8f32_nxv8f32_nxv8f16(<vscale x 8 x float> %0, <vscale x 8 x half> %1, <vscale x 8 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwsub.w_mask_wv_tie_nxv8f32_nxv8f32_nxv8f16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vfwsub.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vfwsub.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x float> @llvm.riscv.vfwsub.w.mask.nxv8f32.nxv8f16(
     <vscale x 8 x float> %0,
     <vscale x 8 x float> %0,
     <vscale x 8 x half> %1,
     <vscale x 8 x i1> %2,
     i64 %3)
 
   ret <vscale x 8 x float> %a
 }
 
 define <vscale x 16 x float> @intrinsic_vfwsub.w_mask_wv_tie_nxv16f32_nxv16f32_nxv16f16(<vscale x 16 x float> %0, <vscale x 16 x half> %1, <vscale x 16 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwsub.w_mask_wv_tie_nxv16f32_nxv16f32_nxv16f16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vfwsub.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vfwsub.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 16 x float> @llvm.riscv.vfwsub.w.mask.nxv16f32.nxv16f16(
     <vscale x 16 x float> %0,
     <vscale x 16 x float> %0,
     <vscale x 16 x half> %1,
     <vscale x 16 x i1> %2,
     i64 %3)
 
   ret <vscale x 16 x float> %a
 }
 
 define <vscale x 1 x double> @intrinsic_vfwsub.w_mask_wv_tie_nxv1f64_nxv1f64_nxv1f32(<vscale x 1 x double> %0, <vscale x 1 x float> %1, <vscale x 1 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwsub.w_mask_wv_tie_nxv1f64_nxv1f64_nxv1f32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vfwsub.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vfwsub.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x double> @llvm.riscv.vfwsub.w.mask.nxv1f64.nxv1f32(
     <vscale x 1 x double> %0,
     <vscale x 1 x double> %0,
     <vscale x 1 x float> %1,
     <vscale x 1 x i1> %2,
     i64 %3)
 
   ret <vscale x 1 x double> %a
 }
 
 define <vscale x 2 x double> @intrinsic_vfwsub.w_mask_wv_tie_nxv2f64_nxv2f64_nxv2f32(<vscale x 2 x double> %0, <vscale x 2 x float> %1, <vscale x 2 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwsub.w_mask_wv_tie_nxv2f64_nxv2f64_nxv2f32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vfwsub.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vfwsub.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x double> @llvm.riscv.vfwsub.w.mask.nxv2f64.nxv2f32(
     <vscale x 2 x double> %0,
     <vscale x 2 x double> %0,
     <vscale x 2 x float> %1,
     <vscale x 2 x i1> %2,
     i64 %3)
 
   ret <vscale x 2 x double> %a
 }
 
 define <vscale x 4 x double> @intrinsic_vfwsub.w_mask_wv_tie_nxv4f64_nxv4f64_nxv4f32(<vscale x 4 x double> %0, <vscale x 4 x float> %1, <vscale x 4 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwsub.w_mask_wv_tie_nxv4f64_nxv4f64_nxv4f32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vfwsub.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vfwsub.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x double> @llvm.riscv.vfwsub.w.mask.nxv4f64.nxv4f32(
     <vscale x 4 x double> %0,
     <vscale x 4 x double> %0,
     <vscale x 4 x float> %1,
     <vscale x 4 x i1> %2,
     i64 %3)
 
   ret <vscale x 4 x double> %a
 }
 
 define <vscale x 8 x double> @intrinsic_vfwsub.w_mask_wv_tie_nxv8f64_nxv8f64_nxv8f32(<vscale x 8 x double> %0, <vscale x 8 x float> %1, <vscale x 8 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vfwsub.w_mask_wv_tie_nxv8f64_nxv8f64_nxv8f32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vfwsub.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vfwsub.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x double> @llvm.riscv.vfwsub.w.mask.nxv8f64.nxv8f32(
     <vscale x 8 x double> %0,
     <vscale x 8 x double> %0,
     <vscale x 8 x float> %1,
     <vscale x 8 x i1> %2,
     i64 %3)

llvm/test/CodeGen/RISCV/rvv/vwadd.w-rv32.ll

entry:
 
   ret <vscale x 8 x i64> %a
 }
 
 define <vscale x 1 x i16> @intrinsic_vwadd.w_mask_wv_tie_nxv1i16_nxv1i16_nxv1i8(<vscale x 1 x i16> %0, <vscale x 1 x i8> %1, <vscale x 1 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv1i16_nxv1i16_nxv1i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf8,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwadd.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwadd.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i16> @llvm.riscv.vwadd.w.mask.nxv1i16.nxv1i8(
     <vscale x 1 x i16> %0,
     <vscale x 1 x i16> %0,
     <vscale x 1 x i8> %1,
     <vscale x 1 x i1> %2,
     i32 %3)
 
   ret <vscale x 1 x i16> %a
 }
 
 define <vscale x 2 x i16> @intrinsic_vwadd.w_mask_wv_tie_nxv2i16_nxv2i16_nxv2i8(<vscale x 2 x i16> %0, <vscale x 2 x i8> %1, <vscale x 2 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv2i16_nxv2i16_nxv2i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf4,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwadd.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwadd.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i16> @llvm.riscv.vwadd.w.mask.nxv2i16.nxv2i8(
     <vscale x 2 x i16> %0,
     <vscale x 2 x i16> %0,
     <vscale x 2 x i8> %1,
     <vscale x 2 x i1> %2,
     i32 %3)
 
   ret <vscale x 2 x i16> %a
 }
 
 define <vscale x 4 x i16> @intrinsic_vwadd.w_mask_wv_tie_nxv4i16_nxv4i16_nxv4i8(<vscale x 4 x i16> %0, <vscale x 4 x i8> %1, <vscale x 4 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv4i16_nxv4i16_nxv4i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwadd.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwadd.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i16> @llvm.riscv.vwadd.w.mask.nxv4i16.nxv4i8(
     <vscale x 4 x i16> %0,
     <vscale x 4 x i16> %0,
     <vscale x 4 x i8> %1,
     <vscale x 4 x i1> %2,
     i32 %3)
 
   ret <vscale x 4 x i16> %a
 }
 
 define <vscale x 8 x i16> @intrinsic_vwadd.w_mask_wv_tie_nxv8i16_nxv8i16_nxv8i8(<vscale x 8 x i16> %0, <vscale x 8 x i8> %1, <vscale x 8 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv8i16_nxv8i16_nxv8i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwadd.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwadd.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i16> @llvm.riscv.vwadd.w.mask.nxv8i16.nxv8i8(
     <vscale x 8 x i16> %0,
     <vscale x 8 x i16> %0,
     <vscale x 8 x i8> %1,
     <vscale x 8 x i1> %2,
     i32 %3)
 
   ret <vscale x 8 x i16> %a
 }
 
 define <vscale x 16 x i16> @intrinsic_vwadd.w_mask_wv_tie_nxv16i16_nxv16i16_nxv16i8(<vscale x 16 x i16> %0, <vscale x 16 x i8> %1, <vscale x 16 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv16i16_nxv16i16_nxv16i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwadd.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwadd.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 16 x i16> @llvm.riscv.vwadd.w.mask.nxv16i16.nxv16i8(
     <vscale x 16 x i16> %0,
     <vscale x 16 x i16> %0,
     <vscale x 16 x i8> %1,
     <vscale x 16 x i1> %2,
     i32 %3)
 
   ret <vscale x 16 x i16> %a
 }
 
 define <vscale x 32 x i16> @intrinsic_vwadd.w_mask_wv_tie_nxv32i16_nxv32i16_nxv32i8(<vscale x 32 x i16> %0, <vscale x 32 x i8> %1, <vscale x 32 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv32i16_nxv32i16_nxv32i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwadd.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwadd.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 32 x i16> @llvm.riscv.vwadd.w.mask.nxv32i16.nxv32i8(
     <vscale x 32 x i16> %0,
     <vscale x 32 x i16> %0,
     <vscale x 32 x i8> %1,
     <vscale x 32 x i1> %2,
     i32 %3)
 
   ret <vscale x 32 x i16> %a
 }
 
 define <vscale x 1 x i32> @intrinsic_vwadd.w_mask_wv_tie_nxv1i32_nxv1i32_nxv1i16(<vscale x 1 x i32> %0, <vscale x 1 x i16> %1, <vscale x 1 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv1i32_nxv1i32_nxv1i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf4,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwadd.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwadd.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i32> @llvm.riscv.vwadd.w.mask.nxv1i32.nxv1i16(
     <vscale x 1 x i32> %0,
     <vscale x 1 x i32> %0,
     <vscale x 1 x i16> %1,
     <vscale x 1 x i1> %2,
     i32 %3)
 
   ret <vscale x 1 x i32> %a
 }
 
 define <vscale x 2 x i32> @intrinsic_vwadd.w_mask_wv_tie_nxv2i32_nxv2i32_nxv2i16(<vscale x 2 x i32> %0, <vscale x 2 x i16> %1, <vscale x 2 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv2i32_nxv2i32_nxv2i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwadd.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwadd.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i32> @llvm.riscv.vwadd.w.mask.nxv2i32.nxv2i16(
     <vscale x 2 x i32> %0,
     <vscale x 2 x i32> %0,
     <vscale x 2 x i16> %1,
     <vscale x 2 x i1> %2,
     i32 %3)
 
   ret <vscale x 2 x i32> %a
 }
 
 define <vscale x 4 x i32> @intrinsic_vwadd.w_mask_wv_tie_nxv4i32_nxv4i32_nxv4i16(<vscale x 4 x i32> %0, <vscale x 4 x i16> %1, <vscale x 4 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv4i32_nxv4i32_nxv4i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwadd.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwadd.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i32> @llvm.riscv.vwadd.w.mask.nxv4i32.nxv4i16(
     <vscale x 4 x i32> %0,
     <vscale x 4 x i32> %0,
     <vscale x 4 x i16> %1,
     <vscale x 4 x i1> %2,
     i32 %3)
 
   ret <vscale x 4 x i32> %a
 }
 
 define <vscale x 8 x i32> @intrinsic_vwadd.w_mask_wv_tie_nxv8i32_nxv8i32_nxv8i16(<vscale x 8 x i32> %0, <vscale x 8 x i16> %1, <vscale x 8 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv8i32_nxv8i32_nxv8i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwadd.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwadd.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i32> @llvm.riscv.vwadd.w.mask.nxv8i32.nxv8i16(
     <vscale x 8 x i32> %0,
     <vscale x 8 x i32> %0,
     <vscale x 8 x i16> %1,
     <vscale x 8 x i1> %2,
     i32 %3)
 
   ret <vscale x 8 x i32> %a
 }
 
 define <vscale x 16 x i32> @intrinsic_vwadd.w_mask_wv_tie_nxv16i32_nxv16i32_nxv16i16(<vscale x 16 x i32> %0, <vscale x 16 x i16> %1, <vscale x 16 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv16i32_nxv16i32_nxv16i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwadd.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwadd.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 16 x i32> @llvm.riscv.vwadd.w.mask.nxv16i32.nxv16i16(
     <vscale x 16 x i32> %0,
     <vscale x 16 x i32> %0,
     <vscale x 16 x i16> %1,
     <vscale x 16 x i1> %2,
     i32 %3)
 
   ret <vscale x 16 x i32> %a
 }
 
 define <vscale x 1 x i64> @intrinsic_vwadd.w_mask_wv_tie_nxv1i64_nxv1i64_nxv1i32(<vscale x 1 x i64> %0, <vscale x 1 x i32> %1, <vscale x 1 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv1i64_nxv1i64_nxv1i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwadd.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwadd.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i64> @llvm.riscv.vwadd.w.mask.nxv1i64.nxv1i32(
     <vscale x 1 x i64> %0,
     <vscale x 1 x i64> %0,
     <vscale x 1 x i32> %1,
     <vscale x 1 x i1> %2,
     i32 %3)
 
   ret <vscale x 1 x i64> %a
 }
 
 define <vscale x 2 x i64> @intrinsic_vwadd.w_mask_wv_tie_nxv2i64_nxv2i64_nxv2i32(<vscale x 2 x i64> %0, <vscale x 2 x i32> %1, <vscale x 2 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv2i64_nxv2i64_nxv2i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwadd.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwadd.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i64> @llvm.riscv.vwadd.w.mask.nxv2i64.nxv2i32(
     <vscale x 2 x i64> %0,
     <vscale x 2 x i64> %0,
     <vscale x 2 x i32> %1,
     <vscale x 2 x i1> %2,
     i32 %3)
 
   ret <vscale x 2 x i64> %a
 }
 
 define <vscale x 4 x i64> @intrinsic_vwadd.w_mask_wv_tie_nxv4i64_nxv4i64_nxv4i32(<vscale x 4 x i64> %0, <vscale x 4 x i32> %1, <vscale x 4 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv4i64_nxv4i64_nxv4i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwadd.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwadd.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i64> @llvm.riscv.vwadd.w.mask.nxv4i64.nxv4i32(
     <vscale x 4 x i64> %0,
     <vscale x 4 x i64> %0,
     <vscale x 4 x i32> %1,
     <vscale x 4 x i1> %2,
     i32 %3)
 
   ret <vscale x 4 x i64> %a
 }
 
 define <vscale x 8 x i64> @intrinsic_vwadd.w_mask_wv_tie_nxv8i64_nxv8i64_nxv8i32(<vscale x 8 x i64> %0, <vscale x 8 x i32> %1, <vscale x 8 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv8i64_nxv8i64_nxv8i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwadd.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwadd.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i64> @llvm.riscv.vwadd.w.mask.nxv8i64.nxv8i32(
     <vscale x 8 x i64> %0,
     <vscale x 8 x i64> %0,
     <vscale x 8 x i32> %1,
     <vscale x 8 x i1> %2,
     i32 %3)

llvm/test/CodeGen/RISCV/rvv/vwadd.w-rv64.ll

entry:
 
   ret <vscale x 8 x i64> %a
 }
 
 define <vscale x 1 x i16> @intrinsic_vwadd.w_mask_wv_tie_nxv1i16_nxv1i16_nxv1i8(<vscale x 1 x i16> %0, <vscale x 1 x i8> %1, <vscale x 1 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv1i16_nxv1i16_nxv1i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf8,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwadd.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwadd.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i16> @llvm.riscv.vwadd.w.mask.nxv1i16.nxv1i8(
     <vscale x 1 x i16> %0,
     <vscale x 1 x i16> %0,
     <vscale x 1 x i8> %1,
     <vscale x 1 x i1> %2,
     i64 %3)
 
   ret <vscale x 1 x i16> %a
 }
 
 define <vscale x 2 x i16> @intrinsic_vwadd.w_mask_wv_tie_nxv2i16_nxv2i16_nxv2i8(<vscale x 2 x i16> %0, <vscale x 2 x i8> %1, <vscale x 2 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv2i16_nxv2i16_nxv2i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf4,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwadd.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwadd.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i16> @llvm.riscv.vwadd.w.mask.nxv2i16.nxv2i8(
     <vscale x 2 x i16> %0,
     <vscale x 2 x i16> %0,
     <vscale x 2 x i8> %1,
     <vscale x 2 x i1> %2,
     i64 %3)
 
   ret <vscale x 2 x i16> %a
 }
 
 define <vscale x 4 x i16> @intrinsic_vwadd.w_mask_wv_tie_nxv4i16_nxv4i16_nxv4i8(<vscale x 4 x i16> %0, <vscale x 4 x i8> %1, <vscale x 4 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv4i16_nxv4i16_nxv4i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwadd.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwadd.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i16> @llvm.riscv.vwadd.w.mask.nxv4i16.nxv4i8(
     <vscale x 4 x i16> %0,
     <vscale x 4 x i16> %0,
     <vscale x 4 x i8> %1,
     <vscale x 4 x i1> %2,
     i64 %3)
 
   ret <vscale x 4 x i16> %a
 }
 
 define <vscale x 8 x i16> @intrinsic_vwadd.w_mask_wv_tie_nxv8i16_nxv8i16_nxv8i8(<vscale x 8 x i16> %0, <vscale x 8 x i8> %1, <vscale x 8 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv8i16_nxv8i16_nxv8i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwadd.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwadd.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i16> @llvm.riscv.vwadd.w.mask.nxv8i16.nxv8i8(
     <vscale x 8 x i16> %0,
     <vscale x 8 x i16> %0,
     <vscale x 8 x i8> %1,
     <vscale x 8 x i1> %2,
     i64 %3)
 
   ret <vscale x 8 x i16> %a
 }
 
 define <vscale x 16 x i16> @intrinsic_vwadd.w_mask_wv_tie_nxv16i16_nxv16i16_nxv16i8(<vscale x 16 x i16> %0, <vscale x 16 x i8> %1, <vscale x 16 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv16i16_nxv16i16_nxv16i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwadd.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwadd.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 16 x i16> @llvm.riscv.vwadd.w.mask.nxv16i16.nxv16i8(
     <vscale x 16 x i16> %0,
     <vscale x 16 x i16> %0,
     <vscale x 16 x i8> %1,
     <vscale x 16 x i1> %2,
     i64 %3)
 
   ret <vscale x 16 x i16> %a
 }
 
 define <vscale x 32 x i16> @intrinsic_vwadd.w_mask_wv_tie_nxv32i16_nxv32i16_nxv32i8(<vscale x 32 x i16> %0, <vscale x 32 x i8> %1, <vscale x 32 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv32i16_nxv32i16_nxv32i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwadd.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwadd.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 32 x i16> @llvm.riscv.vwadd.w.mask.nxv32i16.nxv32i8(
     <vscale x 32 x i16> %0,
     <vscale x 32 x i16> %0,
     <vscale x 32 x i8> %1,
     <vscale x 32 x i1> %2,
     i64 %3)
 
   ret <vscale x 32 x i16> %a
 }
 
 define <vscale x 1 x i32> @intrinsic_vwadd.w_mask_wv_tie_nxv1i32_nxv1i32_nxv1i16(<vscale x 1 x i32> %0, <vscale x 1 x i16> %1, <vscale x 1 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv1i32_nxv1i32_nxv1i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf4,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwadd.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwadd.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i32> @llvm.riscv.vwadd.w.mask.nxv1i32.nxv1i16(
     <vscale x 1 x i32> %0,
     <vscale x 1 x i32> %0,
     <vscale x 1 x i16> %1,
     <vscale x 1 x i1> %2,
     i64 %3)
 
   ret <vscale x 1 x i32> %a
 }
 
 define <vscale x 2 x i32> @intrinsic_vwadd.w_mask_wv_tie_nxv2i32_nxv2i32_nxv2i16(<vscale x 2 x i32> %0, <vscale x 2 x i16> %1, <vscale x 2 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv2i32_nxv2i32_nxv2i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwadd.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwadd.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i32> @llvm.riscv.vwadd.w.mask.nxv2i32.nxv2i16(
     <vscale x 2 x i32> %0,
     <vscale x 2 x i32> %0,
     <vscale x 2 x i16> %1,
     <vscale x 2 x i1> %2,
     i64 %3)
 
   ret <vscale x 2 x i32> %a
 }
 
 define <vscale x 4 x i32> @intrinsic_vwadd.w_mask_wv_tie_nxv4i32_nxv4i32_nxv4i16(<vscale x 4 x i32> %0, <vscale x 4 x i16> %1, <vscale x 4 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv4i32_nxv4i32_nxv4i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwadd.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwadd.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i32> @llvm.riscv.vwadd.w.mask.nxv4i32.nxv4i16(
     <vscale x 4 x i32> %0,
     <vscale x 4 x i32> %0,
     <vscale x 4 x i16> %1,
     <vscale x 4 x i1> %2,
     i64 %3)
 
   ret <vscale x 4 x i32> %a
 }
 
 define <vscale x 8 x i32> @intrinsic_vwadd.w_mask_wv_tie_nxv8i32_nxv8i32_nxv8i16(<vscale x 8 x i32> %0, <vscale x 8 x i16> %1, <vscale x 8 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv8i32_nxv8i32_nxv8i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwadd.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwadd.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i32> @llvm.riscv.vwadd.w.mask.nxv8i32.nxv8i16(
     <vscale x 8 x i32> %0,
     <vscale x 8 x i32> %0,
     <vscale x 8 x i16> %1,
     <vscale x 8 x i1> %2,
     i64 %3)
 
   ret <vscale x 8 x i32> %a
 }
 
 define <vscale x 16 x i32> @intrinsic_vwadd.w_mask_wv_tie_nxv16i32_nxv16i32_nxv16i16(<vscale x 16 x i32> %0, <vscale x 16 x i16> %1, <vscale x 16 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv16i32_nxv16i32_nxv16i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwadd.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwadd.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 16 x i32> @llvm.riscv.vwadd.w.mask.nxv16i32.nxv16i16(
     <vscale x 16 x i32> %0,
     <vscale x 16 x i32> %0,
     <vscale x 16 x i16> %1,
     <vscale x 16 x i1> %2,
     i64 %3)
 
   ret <vscale x 16 x i32> %a
 }
 
 define <vscale x 1 x i64> @intrinsic_vwadd.w_mask_wv_tie_nxv1i64_nxv1i64_nxv1i32(<vscale x 1 x i64> %0, <vscale x 1 x i32> %1, <vscale x 1 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv1i64_nxv1i64_nxv1i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwadd.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwadd.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i64> @llvm.riscv.vwadd.w.mask.nxv1i64.nxv1i32(
     <vscale x 1 x i64> %0,
     <vscale x 1 x i64> %0,
     <vscale x 1 x i32> %1,
     <vscale x 1 x i1> %2,
     i64 %3)
 
   ret <vscale x 1 x i64> %a
 }
 
 define <vscale x 2 x i64> @intrinsic_vwadd.w_mask_wv_tie_nxv2i64_nxv2i64_nxv2i32(<vscale x 2 x i64> %0, <vscale x 2 x i32> %1, <vscale x 2 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv2i64_nxv2i64_nxv2i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwadd.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwadd.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i64> @llvm.riscv.vwadd.w.mask.nxv2i64.nxv2i32(
     <vscale x 2 x i64> %0,
     <vscale x 2 x i64> %0,
     <vscale x 2 x i32> %1,
     <vscale x 2 x i1> %2,
     i64 %3)
 
   ret <vscale x 2 x i64> %a
 }
 
 define <vscale x 4 x i64> @intrinsic_vwadd.w_mask_wv_tie_nxv4i64_nxv4i64_nxv4i32(<vscale x 4 x i64> %0, <vscale x 4 x i32> %1, <vscale x 4 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv4i64_nxv4i64_nxv4i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwadd.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwadd.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i64> @llvm.riscv.vwadd.w.mask.nxv4i64.nxv4i32(
     <vscale x 4 x i64> %0,
     <vscale x 4 x i64> %0,
     <vscale x 4 x i32> %1,
     <vscale x 4 x i1> %2,
     i64 %3)
 
   ret <vscale x 4 x i64> %a
 }
 
 define <vscale x 8 x i64> @intrinsic_vwadd.w_mask_wv_tie_nxv8i64_nxv8i64_nxv8i32(<vscale x 8 x i64> %0, <vscale x 8 x i32> %1, <vscale x 8 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwadd.w_mask_wv_tie_nxv8i64_nxv8i64_nxv8i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwadd.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwadd.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i64> @llvm.riscv.vwadd.w.mask.nxv8i64.nxv8i32(
     <vscale x 8 x i64> %0,
     <vscale x 8 x i64> %0,
     <vscale x 8 x i32> %1,
     <vscale x 8 x i1> %2,
     i64 %3)

llvm/test/CodeGen/RISCV/rvv/vwaddu.w-rv32.ll

entry:
 
   ret <vscale x 8 x i64> %a
 }
 
 define <vscale x 1 x i16> @intrinsic_vwaddu.w_mask_wv_tie_nxv1i16_nxv1i16_nxv1i8(<vscale x 1 x i16> %0, <vscale x 1 x i8> %1, <vscale x 1 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv1i16_nxv1i16_nxv1i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf8,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwaddu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwaddu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i16> @llvm.riscv.vwaddu.w.mask.nxv1i16.nxv1i8(
     <vscale x 1 x i16> %0,
     <vscale x 1 x i16> %0,
     <vscale x 1 x i8> %1,
     <vscale x 1 x i1> %2,
     i32 %3)
 
   ret <vscale x 1 x i16> %a
 }
 
 define <vscale x 2 x i16> @intrinsic_vwaddu.w_mask_wv_tie_nxv2i16_nxv2i16_nxv2i8(<vscale x 2 x i16> %0, <vscale x 2 x i8> %1, <vscale x 2 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv2i16_nxv2i16_nxv2i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf4,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwaddu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwaddu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i16> @llvm.riscv.vwaddu.w.mask.nxv2i16.nxv2i8(
     <vscale x 2 x i16> %0,
     <vscale x 2 x i16> %0,
     <vscale x 2 x i8> %1,
     <vscale x 2 x i1> %2,
     i32 %3)
 
   ret <vscale x 2 x i16> %a
 }
 
 define <vscale x 4 x i16> @intrinsic_vwaddu.w_mask_wv_tie_nxv4i16_nxv4i16_nxv4i8(<vscale x 4 x i16> %0, <vscale x 4 x i8> %1, <vscale x 4 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv4i16_nxv4i16_nxv4i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwaddu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwaddu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i16> @llvm.riscv.vwaddu.w.mask.nxv4i16.nxv4i8(
     <vscale x 4 x i16> %0,
     <vscale x 4 x i16> %0,
     <vscale x 4 x i8> %1,
     <vscale x 4 x i1> %2,
     i32 %3)
 
   ret <vscale x 4 x i16> %a
 }
 
 define <vscale x 8 x i16> @intrinsic_vwaddu.w_mask_wv_tie_nxv8i16_nxv8i16_nxv8i8(<vscale x 8 x i16> %0, <vscale x 8 x i8> %1, <vscale x 8 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv8i16_nxv8i16_nxv8i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwaddu.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwaddu.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i16> @llvm.riscv.vwaddu.w.mask.nxv8i16.nxv8i8(
     <vscale x 8 x i16> %0,
     <vscale x 8 x i16> %0,
     <vscale x 8 x i8> %1,
     <vscale x 8 x i1> %2,
     i32 %3)
 
   ret <vscale x 8 x i16> %a
 }
 
 define <vscale x 16 x i16> @intrinsic_vwaddu.w_mask_wv_tie_nxv16i16_nxv16i16_nxv16i8(<vscale x 16 x i16> %0, <vscale x 16 x i8> %1, <vscale x 16 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv16i16_nxv16i16_nxv16i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwaddu.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwaddu.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 16 x i16> @llvm.riscv.vwaddu.w.mask.nxv16i16.nxv16i8(
     <vscale x 16 x i16> %0,
     <vscale x 16 x i16> %0,
     <vscale x 16 x i8> %1,
     <vscale x 16 x i1> %2,
     i32 %3)
 
   ret <vscale x 16 x i16> %a
 }
 
 define <vscale x 32 x i16> @intrinsic_vwaddu.w_mask_wv_tie_nxv32i16_nxv32i16_nxv32i8(<vscale x 32 x i16> %0, <vscale x 32 x i8> %1, <vscale x 32 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv32i16_nxv32i16_nxv32i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwaddu.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwaddu.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 32 x i16> @llvm.riscv.vwaddu.w.mask.nxv32i16.nxv32i8(
     <vscale x 32 x i16> %0,
     <vscale x 32 x i16> %0,
     <vscale x 32 x i8> %1,
     <vscale x 32 x i1> %2,
     i32 %3)
 
   ret <vscale x 32 x i16> %a
 }
 
 define <vscale x 1 x i32> @intrinsic_vwaddu.w_mask_wv_tie_nxv1i32_nxv1i32_nxv1i16(<vscale x 1 x i32> %0, <vscale x 1 x i16> %1, <vscale x 1 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv1i32_nxv1i32_nxv1i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf4,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwaddu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwaddu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i32> @llvm.riscv.vwaddu.w.mask.nxv1i32.nxv1i16(
     <vscale x 1 x i32> %0,
     <vscale x 1 x i32> %0,
     <vscale x 1 x i16> %1,
     <vscale x 1 x i1> %2,
     i32 %3)
 
   ret <vscale x 1 x i32> %a
 }
 
 define <vscale x 2 x i32> @intrinsic_vwaddu.w_mask_wv_tie_nxv2i32_nxv2i32_nxv2i16(<vscale x 2 x i32> %0, <vscale x 2 x i16> %1, <vscale x 2 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv2i32_nxv2i32_nxv2i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwaddu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwaddu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i32> @llvm.riscv.vwaddu.w.mask.nxv2i32.nxv2i16(
     <vscale x 2 x i32> %0,
     <vscale x 2 x i32> %0,
     <vscale x 2 x i16> %1,
     <vscale x 2 x i1> %2,
     i32 %3)
 
   ret <vscale x 2 x i32> %a
 }
 
 define <vscale x 4 x i32> @intrinsic_vwaddu.w_mask_wv_tie_nxv4i32_nxv4i32_nxv4i16(<vscale x 4 x i32> %0, <vscale x 4 x i16> %1, <vscale x 4 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv4i32_nxv4i32_nxv4i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwaddu.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwaddu.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i32> @llvm.riscv.vwaddu.w.mask.nxv4i32.nxv4i16(
     <vscale x 4 x i32> %0,
     <vscale x 4 x i32> %0,
     <vscale x 4 x i16> %1,
     <vscale x 4 x i1> %2,
     i32 %3)
 
   ret <vscale x 4 x i32> %a
 }
 
 define <vscale x 8 x i32> @intrinsic_vwaddu.w_mask_wv_tie_nxv8i32_nxv8i32_nxv8i16(<vscale x 8 x i32> %0, <vscale x 8 x i16> %1, <vscale x 8 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv8i32_nxv8i32_nxv8i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwaddu.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwaddu.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i32> @llvm.riscv.vwaddu.w.mask.nxv8i32.nxv8i16(
     <vscale x 8 x i32> %0,
     <vscale x 8 x i32> %0,
     <vscale x 8 x i16> %1,
     <vscale x 8 x i1> %2,
     i32 %3)
 
   ret <vscale x 8 x i32> %a
 }
 
 define <vscale x 16 x i32> @intrinsic_vwaddu.w_mask_wv_tie_nxv16i32_nxv16i32_nxv16i16(<vscale x 16 x i32> %0, <vscale x 16 x i16> %1, <vscale x 16 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv16i32_nxv16i32_nxv16i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwaddu.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwaddu.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 16 x i32> @llvm.riscv.vwaddu.w.mask.nxv16i32.nxv16i16(
     <vscale x 16 x i32> %0,
     <vscale x 16 x i32> %0,
     <vscale x 16 x i16> %1,
     <vscale x 16 x i1> %2,
     i32 %3)
 
   ret <vscale x 16 x i32> %a
 }
 
 define <vscale x 1 x i64> @intrinsic_vwaddu.w_mask_wv_tie_nxv1i64_nxv1i64_nxv1i32(<vscale x 1 x i64> %0, <vscale x 1 x i32> %1, <vscale x 1 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv1i64_nxv1i64_nxv1i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwaddu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwaddu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i64> @llvm.riscv.vwaddu.w.mask.nxv1i64.nxv1i32(
     <vscale x 1 x i64> %0,
     <vscale x 1 x i64> %0,
     <vscale x 1 x i32> %1,
     <vscale x 1 x i1> %2,
     i32 %3)
 
   ret <vscale x 1 x i64> %a
 }
 
 define <vscale x 2 x i64> @intrinsic_vwaddu.w_mask_wv_tie_nxv2i64_nxv2i64_nxv2i32(<vscale x 2 x i64> %0, <vscale x 2 x i32> %1, <vscale x 2 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv2i64_nxv2i64_nxv2i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwaddu.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwaddu.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i64> @llvm.riscv.vwaddu.w.mask.nxv2i64.nxv2i32(
     <vscale x 2 x i64> %0,
     <vscale x 2 x i64> %0,
     <vscale x 2 x i32> %1,
     <vscale x 2 x i1> %2,
     i32 %3)
 
   ret <vscale x 2 x i64> %a
 }
 
 define <vscale x 4 x i64> @intrinsic_vwaddu.w_mask_wv_tie_nxv4i64_nxv4i64_nxv4i32(<vscale x 4 x i64> %0, <vscale x 4 x i32> %1, <vscale x 4 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv4i64_nxv4i64_nxv4i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwaddu.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwaddu.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i64> @llvm.riscv.vwaddu.w.mask.nxv4i64.nxv4i32(
     <vscale x 4 x i64> %0,
     <vscale x 4 x i64> %0,
     <vscale x 4 x i32> %1,
     <vscale x 4 x i1> %2,
     i32 %3)
 
   ret <vscale x 4 x i64> %a
 }
 
 define <vscale x 8 x i64> @intrinsic_vwaddu.w_mask_wv_tie_nxv8i64_nxv8i64_nxv8i32(<vscale x 8 x i64> %0, <vscale x 8 x i32> %1, <vscale x 8 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv8i64_nxv8i64_nxv8i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwaddu.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwaddu.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i64> @llvm.riscv.vwaddu.w.mask.nxv8i64.nxv8i32(
     <vscale x 8 x i64> %0,
     <vscale x 8 x i64> %0,
     <vscale x 8 x i32> %1,
     <vscale x 8 x i1> %2,
     i32 %3)

llvm/test/CodeGen/RISCV/rvv/vwaddu.w-rv64.ll

entry:
 
   ret <vscale x 8 x i64> %a
 }
 
 define <vscale x 1 x i16> @intrinsic_vwaddu.w_mask_wv_tie_nxv1i16_nxv1i16_nxv1i8(<vscale x 1 x i16> %0, <vscale x 1 x i8> %1, <vscale x 1 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv1i16_nxv1i16_nxv1i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf8,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwaddu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwaddu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i16> @llvm.riscv.vwaddu.w.mask.nxv1i16.nxv1i8(
     <vscale x 1 x i16> %0,
     <vscale x 1 x i16> %0,
     <vscale x 1 x i8> %1,
     <vscale x 1 x i1> %2,
     i64 %3)
 
   ret <vscale x 1 x i16> %a
 }
 
 define <vscale x 2 x i16> @intrinsic_vwaddu.w_mask_wv_tie_nxv2i16_nxv2i16_nxv2i8(<vscale x 2 x i16> %0, <vscale x 2 x i8> %1, <vscale x 2 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv2i16_nxv2i16_nxv2i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf4,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwaddu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwaddu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i16> @llvm.riscv.vwaddu.w.mask.nxv2i16.nxv2i8(
     <vscale x 2 x i16> %0,
     <vscale x 2 x i16> %0,
     <vscale x 2 x i8> %1,
     <vscale x 2 x i1> %2,
     i64 %3)
 
   ret <vscale x 2 x i16> %a
 }
 
 define <vscale x 4 x i16> @intrinsic_vwaddu.w_mask_wv_tie_nxv4i16_nxv4i16_nxv4i8(<vscale x 4 x i16> %0, <vscale x 4 x i8> %1, <vscale x 4 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv4i16_nxv4i16_nxv4i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwaddu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwaddu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i16> @llvm.riscv.vwaddu.w.mask.nxv4i16.nxv4i8(
     <vscale x 4 x i16> %0,
     <vscale x 4 x i16> %0,
     <vscale x 4 x i8> %1,
     <vscale x 4 x i1> %2,
     i64 %3)
 
   ret <vscale x 4 x i16> %a
 }
 
 define <vscale x 8 x i16> @intrinsic_vwaddu.w_mask_wv_tie_nxv8i16_nxv8i16_nxv8i8(<vscale x 8 x i16> %0, <vscale x 8 x i8> %1, <vscale x 8 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv8i16_nxv8i16_nxv8i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwaddu.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwaddu.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i16> @llvm.riscv.vwaddu.w.mask.nxv8i16.nxv8i8(
     <vscale x 8 x i16> %0,
     <vscale x 8 x i16> %0,
     <vscale x 8 x i8> %1,
     <vscale x 8 x i1> %2,
     i64 %3)
 
   ret <vscale x 8 x i16> %a
 }
 
 define <vscale x 16 x i16> @intrinsic_vwaddu.w_mask_wv_tie_nxv16i16_nxv16i16_nxv16i8(<vscale x 16 x i16> %0, <vscale x 16 x i8> %1, <vscale x 16 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv16i16_nxv16i16_nxv16i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwaddu.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwaddu.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 16 x i16> @llvm.riscv.vwaddu.w.mask.nxv16i16.nxv16i8(
     <vscale x 16 x i16> %0,
     <vscale x 16 x i16> %0,
     <vscale x 16 x i8> %1,
     <vscale x 16 x i1> %2,
     i64 %3)
 
   ret <vscale x 16 x i16> %a
 }
 
 define <vscale x 32 x i16> @intrinsic_vwaddu.w_mask_wv_tie_nxv32i16_nxv32i16_nxv32i8(<vscale x 32 x i16> %0, <vscale x 32 x i8> %1, <vscale x 32 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv32i16_nxv32i16_nxv32i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwaddu.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwaddu.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 32 x i16> @llvm.riscv.vwaddu.w.mask.nxv32i16.nxv32i8(
     <vscale x 32 x i16> %0,
     <vscale x 32 x i16> %0,
     <vscale x 32 x i8> %1,
     <vscale x 32 x i1> %2,
     i64 %3)
 
   ret <vscale x 32 x i16> %a
 }
 
 define <vscale x 1 x i32> @intrinsic_vwaddu.w_mask_wv_tie_nxv1i32_nxv1i32_nxv1i16(<vscale x 1 x i32> %0, <vscale x 1 x i16> %1, <vscale x 1 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv1i32_nxv1i32_nxv1i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf4,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwaddu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwaddu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i32> @llvm.riscv.vwaddu.w.mask.nxv1i32.nxv1i16(
     <vscale x 1 x i32> %0,
     <vscale x 1 x i32> %0,
     <vscale x 1 x i16> %1,
     <vscale x 1 x i1> %2,
     i64 %3)
 
   ret <vscale x 1 x i32> %a
 }
 
 define <vscale x 2 x i32> @intrinsic_vwaddu.w_mask_wv_tie_nxv2i32_nxv2i32_nxv2i16(<vscale x 2 x i32> %0, <vscale x 2 x i16> %1, <vscale x 2 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv2i32_nxv2i32_nxv2i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwaddu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwaddu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i32> @llvm.riscv.vwaddu.w.mask.nxv2i32.nxv2i16(
     <vscale x 2 x i32> %0,
     <vscale x 2 x i32> %0,
     <vscale x 2 x i16> %1,
     <vscale x 2 x i1> %2,
     i64 %3)
 
   ret <vscale x 2 x i32> %a
 }
 
 define <vscale x 4 x i32> @intrinsic_vwaddu.w_mask_wv_tie_nxv4i32_nxv4i32_nxv4i16(<vscale x 4 x i32> %0, <vscale x 4 x i16> %1, <vscale x 4 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv4i32_nxv4i32_nxv4i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwaddu.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwaddu.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i32> @llvm.riscv.vwaddu.w.mask.nxv4i32.nxv4i16(
     <vscale x 4 x i32> %0,
     <vscale x 4 x i32> %0,
     <vscale x 4 x i16> %1,
     <vscale x 4 x i1> %2,
     i64 %3)
 
   ret <vscale x 4 x i32> %a
 }
 
 define <vscale x 8 x i32> @intrinsic_vwaddu.w_mask_wv_tie_nxv8i32_nxv8i32_nxv8i16(<vscale x 8 x i32> %0, <vscale x 8 x i16> %1, <vscale x 8 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv8i32_nxv8i32_nxv8i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwaddu.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwaddu.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i32> @llvm.riscv.vwaddu.w.mask.nxv8i32.nxv8i16(
     <vscale x 8 x i32> %0,
     <vscale x 8 x i32> %0,
     <vscale x 8 x i16> %1,
     <vscale x 8 x i1> %2,
     i64 %3)
 
   ret <vscale x 8 x i32> %a
 }
 
 define <vscale x 16 x i32> @intrinsic_vwaddu.w_mask_wv_tie_nxv16i32_nxv16i32_nxv16i16(<vscale x 16 x i32> %0, <vscale x 16 x i16> %1, <vscale x 16 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv16i32_nxv16i32_nxv16i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwaddu.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwaddu.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 16 x i32> @llvm.riscv.vwaddu.w.mask.nxv16i32.nxv16i16(
     <vscale x 16 x i32> %0,
     <vscale x 16 x i32> %0,
     <vscale x 16 x i16> %1,
     <vscale x 16 x i1> %2,
     i64 %3)
 
   ret <vscale x 16 x i32> %a
 }
 
 define <vscale x 1 x i64> @intrinsic_vwaddu.w_mask_wv_tie_nxv1i64_nxv1i64_nxv1i32(<vscale x 1 x i64> %0, <vscale x 1 x i32> %1, <vscale x 1 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv1i64_nxv1i64_nxv1i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwaddu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwaddu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i64> @llvm.riscv.vwaddu.w.mask.nxv1i64.nxv1i32(
     <vscale x 1 x i64> %0,
     <vscale x 1 x i64> %0,
     <vscale x 1 x i32> %1,
     <vscale x 1 x i1> %2,
     i64 %3)
 
   ret <vscale x 1 x i64> %a
 }
 
 define <vscale x 2 x i64> @intrinsic_vwaddu.w_mask_wv_tie_nxv2i64_nxv2i64_nxv2i32(<vscale x 2 x i64> %0, <vscale x 2 x i32> %1, <vscale x 2 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv2i64_nxv2i64_nxv2i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwaddu.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwaddu.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i64> @llvm.riscv.vwaddu.w.mask.nxv2i64.nxv2i32(
     <vscale x 2 x i64> %0,
     <vscale x 2 x i64> %0,
     <vscale x 2 x i32> %1,
     <vscale x 2 x i1> %2,
     i64 %3)
 
   ret <vscale x 2 x i64> %a
 }
 
 define <vscale x 4 x i64> @intrinsic_vwaddu.w_mask_wv_tie_nxv4i64_nxv4i64_nxv4i32(<vscale x 4 x i64> %0, <vscale x 4 x i32> %1, <vscale x 4 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv4i64_nxv4i64_nxv4i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwaddu.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwaddu.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i64> @llvm.riscv.vwaddu.w.mask.nxv4i64.nxv4i32(
     <vscale x 4 x i64> %0,
     <vscale x 4 x i64> %0,
     <vscale x 4 x i32> %1,
     <vscale x 4 x i1> %2,
     i64 %3)
 
   ret <vscale x 4 x i64> %a
 }
 
 define <vscale x 8 x i64> @intrinsic_vwaddu.w_mask_wv_tie_nxv8i64_nxv8i64_nxv8i32(<vscale x 8 x i64> %0, <vscale x 8 x i32> %1, <vscale x 8 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwaddu.w_mask_wv_tie_nxv8i64_nxv8i64_nxv8i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwaddu.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwaddu.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i64> @llvm.riscv.vwaddu.w.mask.nxv8i64.nxv8i32(
     <vscale x 8 x i64> %0,
     <vscale x 8 x i64> %0,
     <vscale x 8 x i32> %1,
     <vscale x 8 x i1> %2,
     i64 %3)

llvm/test/CodeGen/RISCV/rvv/vwsub.w-rv32.ll

entry:
 
   ret <vscale x 8 x i64> %a
 }
 
 define <vscale x 1 x i16> @intrinsic_vwsub.w_mask_wv_tie_nxv1i16_nxv1i16_nxv1i8(<vscale x 1 x i16> %0, <vscale x 1 x i8> %1, <vscale x 1 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv1i16_nxv1i16_nxv1i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf8,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsub.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsub.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i16> @llvm.riscv.vwsub.w.mask.nxv1i16.nxv1i8(
     <vscale x 1 x i16> %0,
     <vscale x 1 x i16> %0,
     <vscale x 1 x i8> %1,
     <vscale x 1 x i1> %2,
     i32 %3)
 
   ret <vscale x 1 x i16> %a
 }
 
 define <vscale x 2 x i16> @intrinsic_vwsub.w_mask_wv_tie_nxv2i16_nxv2i16_nxv2i8(<vscale x 2 x i16> %0, <vscale x 2 x i8> %1, <vscale x 2 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv2i16_nxv2i16_nxv2i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf4,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsub.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsub.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i16> @llvm.riscv.vwsub.w.mask.nxv2i16.nxv2i8(
     <vscale x 2 x i16> %0,
     <vscale x 2 x i16> %0,
     <vscale x 2 x i8> %1,
     <vscale x 2 x i1> %2,
     i32 %3)
 
   ret <vscale x 2 x i16> %a
 }
 
 define <vscale x 4 x i16> @intrinsic_vwsub.w_mask_wv_tie_nxv4i16_nxv4i16_nxv4i8(<vscale x 4 x i16> %0, <vscale x 4 x i8> %1, <vscale x 4 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv4i16_nxv4i16_nxv4i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsub.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsub.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i16> @llvm.riscv.vwsub.w.mask.nxv4i16.nxv4i8(
     <vscale x 4 x i16> %0,
     <vscale x 4 x i16> %0,
     <vscale x 4 x i8> %1,
     <vscale x 4 x i1> %2,
     i32 %3)
 
   ret <vscale x 4 x i16> %a
 }
 
 define <vscale x 8 x i16> @intrinsic_vwsub.w_mask_wv_tie_nxv8i16_nxv8i16_nxv8i8(<vscale x 8 x i16> %0, <vscale x 8 x i8> %1, <vscale x 8 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv8i16_nxv8i16_nxv8i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwsub.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwsub.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i16> @llvm.riscv.vwsub.w.mask.nxv8i16.nxv8i8(
     <vscale x 8 x i16> %0,
     <vscale x 8 x i16> %0,
     <vscale x 8 x i8> %1,
     <vscale x 8 x i1> %2,
     i32 %3)
 
   ret <vscale x 8 x i16> %a
 }
 
 define <vscale x 16 x i16> @intrinsic_vwsub.w_mask_wv_tie_nxv16i16_nxv16i16_nxv16i8(<vscale x 16 x i16> %0, <vscale x 16 x i8> %1, <vscale x 16 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv16i16_nxv16i16_nxv16i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwsub.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwsub.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 16 x i16> @llvm.riscv.vwsub.w.mask.nxv16i16.nxv16i8(
     <vscale x 16 x i16> %0,
     <vscale x 16 x i16> %0,
     <vscale x 16 x i8> %1,
     <vscale x 16 x i1> %2,
     i32 %3)
 
   ret <vscale x 16 x i16> %a
 }
 
 define <vscale x 32 x i16> @intrinsic_vwsub.w_mask_wv_tie_nxv32i16_nxv32i16_nxv32i8(<vscale x 32 x i16> %0, <vscale x 32 x i8> %1, <vscale x 32 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv32i16_nxv32i16_nxv32i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwsub.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwsub.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 32 x i16> @llvm.riscv.vwsub.w.mask.nxv32i16.nxv32i8(
     <vscale x 32 x i16> %0,
     <vscale x 32 x i16> %0,
     <vscale x 32 x i8> %1,
     <vscale x 32 x i1> %2,
     i32 %3)
 
   ret <vscale x 32 x i16> %a
 }
 
 define <vscale x 1 x i32> @intrinsic_vwsub.w_mask_wv_tie_nxv1i32_nxv1i32_nxv1i16(<vscale x 1 x i32> %0, <vscale x 1 x i16> %1, <vscale x 1 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv1i32_nxv1i32_nxv1i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf4,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsub.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsub.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i32> @llvm.riscv.vwsub.w.mask.nxv1i32.nxv1i16(
     <vscale x 1 x i32> %0,
     <vscale x 1 x i32> %0,
     <vscale x 1 x i16> %1,
     <vscale x 1 x i1> %2,
     i32 %3)
 
   ret <vscale x 1 x i32> %a
 }
 
 define <vscale x 2 x i32> @intrinsic_vwsub.w_mask_wv_tie_nxv2i32_nxv2i32_nxv2i16(<vscale x 2 x i32> %0, <vscale x 2 x i16> %1, <vscale x 2 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv2i32_nxv2i32_nxv2i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsub.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsub.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i32> @llvm.riscv.vwsub.w.mask.nxv2i32.nxv2i16(
     <vscale x 2 x i32> %0,
     <vscale x 2 x i32> %0,
     <vscale x 2 x i16> %1,
     <vscale x 2 x i1> %2,
     i32 %3)
 
   ret <vscale x 2 x i32> %a
 }
 
 define <vscale x 4 x i32> @intrinsic_vwsub.w_mask_wv_tie_nxv4i32_nxv4i32_nxv4i16(<vscale x 4 x i32> %0, <vscale x 4 x i16> %1, <vscale x 4 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv4i32_nxv4i32_nxv4i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwsub.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwsub.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i32> @llvm.riscv.vwsub.w.mask.nxv4i32.nxv4i16(
     <vscale x 4 x i32> %0,
     <vscale x 4 x i32> %0,
     <vscale x 4 x i16> %1,
     <vscale x 4 x i1> %2,
     i32 %3)
 
   ret <vscale x 4 x i32> %a
 }
 
 define <vscale x 8 x i32> @intrinsic_vwsub.w_mask_wv_tie_nxv8i32_nxv8i32_nxv8i16(<vscale x 8 x i32> %0, <vscale x 8 x i16> %1, <vscale x 8 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv8i32_nxv8i32_nxv8i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwsub.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwsub.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i32> @llvm.riscv.vwsub.w.mask.nxv8i32.nxv8i16(
     <vscale x 8 x i32> %0,
     <vscale x 8 x i32> %0,
     <vscale x 8 x i16> %1,
     <vscale x 8 x i1> %2,
     i32 %3)
 
   ret <vscale x 8 x i32> %a
 }
 
 define <vscale x 16 x i32> @intrinsic_vwsub.w_mask_wv_tie_nxv16i32_nxv16i32_nxv16i16(<vscale x 16 x i32> %0, <vscale x 16 x i16> %1, <vscale x 16 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv16i32_nxv16i32_nxv16i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwsub.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwsub.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 16 x i32> @llvm.riscv.vwsub.w.mask.nxv16i32.nxv16i16(
     <vscale x 16 x i32> %0,
     <vscale x 16 x i32> %0,
     <vscale x 16 x i16> %1,
     <vscale x 16 x i1> %2,
     i32 %3)
 
   ret <vscale x 16 x i32> %a
 }
 
 define <vscale x 1 x i64> @intrinsic_vwsub.w_mask_wv_tie_nxv1i64_nxv1i64_nxv1i32(<vscale x 1 x i64> %0, <vscale x 1 x i32> %1, <vscale x 1 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv1i64_nxv1i64_nxv1i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsub.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsub.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i64> @llvm.riscv.vwsub.w.mask.nxv1i64.nxv1i32(
     <vscale x 1 x i64> %0,
     <vscale x 1 x i64> %0,
     <vscale x 1 x i32> %1,
     <vscale x 1 x i1> %2,
     i32 %3)
 
   ret <vscale x 1 x i64> %a
 }
 
 define <vscale x 2 x i64> @intrinsic_vwsub.w_mask_wv_tie_nxv2i64_nxv2i64_nxv2i32(<vscale x 2 x i64> %0, <vscale x 2 x i32> %1, <vscale x 2 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv2i64_nxv2i64_nxv2i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwsub.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwsub.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i64> @llvm.riscv.vwsub.w.mask.nxv2i64.nxv2i32(
     <vscale x 2 x i64> %0,
     <vscale x 2 x i64> %0,
     <vscale x 2 x i32> %1,
     <vscale x 2 x i1> %2,
     i32 %3)
 
   ret <vscale x 2 x i64> %a
 }
 
 define <vscale x 4 x i64> @intrinsic_vwsub.w_mask_wv_tie_nxv4i64_nxv4i64_nxv4i32(<vscale x 4 x i64> %0, <vscale x 4 x i32> %1, <vscale x 4 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv4i64_nxv4i64_nxv4i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwsub.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwsub.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i64> @llvm.riscv.vwsub.w.mask.nxv4i64.nxv4i32(
     <vscale x 4 x i64> %0,
     <vscale x 4 x i64> %0,
     <vscale x 4 x i32> %1,
     <vscale x 4 x i1> %2,
     i32 %3)
 
   ret <vscale x 4 x i64> %a
 }
 
 define <vscale x 8 x i64> @intrinsic_vwsub.w_mask_wv_tie_nxv8i64_nxv8i64_nxv8i32(<vscale x 8 x i64> %0, <vscale x 8 x i32> %1, <vscale x 8 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv8i64_nxv8i64_nxv8i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwsub.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwsub.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i64> @llvm.riscv.vwsub.w.mask.nxv8i64.nxv8i32(
     <vscale x 8 x i64> %0,
     <vscale x 8 x i64> %0,
     <vscale x 8 x i32> %1,
     <vscale x 8 x i1> %2,
     i32 %3)

llvm/test/CodeGen/RISCV/rvv/vwsub.w-rv64.ll

entry:
 
   ret <vscale x 8 x i64> %a
 }
 
 define <vscale x 1 x i16> @intrinsic_vwsub.w_mask_wv_tie_nxv1i16_nxv1i16_nxv1i8(<vscale x 1 x i16> %0, <vscale x 1 x i8> %1, <vscale x 1 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv1i16_nxv1i16_nxv1i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf8,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsub.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsub.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i16> @llvm.riscv.vwsub.w.mask.nxv1i16.nxv1i8(
     <vscale x 1 x i16> %0,
     <vscale x 1 x i16> %0,
     <vscale x 1 x i8> %1,
     <vscale x 1 x i1> %2,
     i64 %3)
 
   ret <vscale x 1 x i16> %a
 }
 
 define <vscale x 2 x i16> @intrinsic_vwsub.w_mask_wv_tie_nxv2i16_nxv2i16_nxv2i8(<vscale x 2 x i16> %0, <vscale x 2 x i8> %1, <vscale x 2 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv2i16_nxv2i16_nxv2i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf4,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsub.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsub.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i16> @llvm.riscv.vwsub.w.mask.nxv2i16.nxv2i8(
     <vscale x 2 x i16> %0,
     <vscale x 2 x i16> %0,
     <vscale x 2 x i8> %1,
     <vscale x 2 x i1> %2,
     i64 %3)
 
   ret <vscale x 2 x i16> %a
 }
 
 define <vscale x 4 x i16> @intrinsic_vwsub.w_mask_wv_tie_nxv4i16_nxv4i16_nxv4i8(<vscale x 4 x i16> %0, <vscale x 4 x i8> %1, <vscale x 4 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv4i16_nxv4i16_nxv4i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsub.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsub.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i16> @llvm.riscv.vwsub.w.mask.nxv4i16.nxv4i8(
     <vscale x 4 x i16> %0,
     <vscale x 4 x i16> %0,
     <vscale x 4 x i8> %1,
     <vscale x 4 x i1> %2,
     i64 %3)
 
   ret <vscale x 4 x i16> %a
 }
 
 define <vscale x 8 x i16> @intrinsic_vwsub.w_mask_wv_tie_nxv8i16_nxv8i16_nxv8i8(<vscale x 8 x i16> %0, <vscale x 8 x i8> %1, <vscale x 8 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv8i16_nxv8i16_nxv8i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwsub.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwsub.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i16> @llvm.riscv.vwsub.w.mask.nxv8i16.nxv8i8(
     <vscale x 8 x i16> %0,
     <vscale x 8 x i16> %0,
     <vscale x 8 x i8> %1,
     <vscale x 8 x i1> %2,
     i64 %3)
 
   ret <vscale x 8 x i16> %a
 }
 
 define <vscale x 16 x i16> @intrinsic_vwsub.w_mask_wv_tie_nxv16i16_nxv16i16_nxv16i8(<vscale x 16 x i16> %0, <vscale x 16 x i8> %1, <vscale x 16 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv16i16_nxv16i16_nxv16i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwsub.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwsub.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 16 x i16> @llvm.riscv.vwsub.w.mask.nxv16i16.nxv16i8(
     <vscale x 16 x i16> %0,
     <vscale x 16 x i16> %0,
     <vscale x 16 x i8> %1,
     <vscale x 16 x i1> %2,
     i64 %3)
 
   ret <vscale x 16 x i16> %a
 }
 
 define <vscale x 32 x i16> @intrinsic_vwsub.w_mask_wv_tie_nxv32i16_nxv32i16_nxv32i8(<vscale x 32 x i16> %0, <vscale x 32 x i8> %1, <vscale x 32 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv32i16_nxv32i16_nxv32i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwsub.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwsub.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 32 x i16> @llvm.riscv.vwsub.w.mask.nxv32i16.nxv32i8(
     <vscale x 32 x i16> %0,
     <vscale x 32 x i16> %0,
     <vscale x 32 x i8> %1,
     <vscale x 32 x i1> %2,
     i64 %3)
 
   ret <vscale x 32 x i16> %a
 }
 
 define <vscale x 1 x i32> @intrinsic_vwsub.w_mask_wv_tie_nxv1i32_nxv1i32_nxv1i16(<vscale x 1 x i32> %0, <vscale x 1 x i16> %1, <vscale x 1 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv1i32_nxv1i32_nxv1i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf4,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsub.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsub.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i32> @llvm.riscv.vwsub.w.mask.nxv1i32.nxv1i16(
     <vscale x 1 x i32> %0,
     <vscale x 1 x i32> %0,
     <vscale x 1 x i16> %1,
     <vscale x 1 x i1> %2,
     i64 %3)
 
   ret <vscale x 1 x i32> %a
 }
 
 define <vscale x 2 x i32> @intrinsic_vwsub.w_mask_wv_tie_nxv2i32_nxv2i32_nxv2i16(<vscale x 2 x i32> %0, <vscale x 2 x i16> %1, <vscale x 2 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv2i32_nxv2i32_nxv2i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsub.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsub.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i32> @llvm.riscv.vwsub.w.mask.nxv2i32.nxv2i16(
     <vscale x 2 x i32> %0,
     <vscale x 2 x i32> %0,
     <vscale x 2 x i16> %1,
     <vscale x 2 x i1> %2,
     i64 %3)
 
   ret <vscale x 2 x i32> %a
 }
 
 define <vscale x 4 x i32> @intrinsic_vwsub.w_mask_wv_tie_nxv4i32_nxv4i32_nxv4i16(<vscale x 4 x i32> %0, <vscale x 4 x i16> %1, <vscale x 4 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv4i32_nxv4i32_nxv4i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwsub.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwsub.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i32> @llvm.riscv.vwsub.w.mask.nxv4i32.nxv4i16(
     <vscale x 4 x i32> %0,
     <vscale x 4 x i32> %0,
     <vscale x 4 x i16> %1,
     <vscale x 4 x i1> %2,
     i64 %3)
 
   ret <vscale x 4 x i32> %a
 }
 
 define <vscale x 8 x i32> @intrinsic_vwsub.w_mask_wv_tie_nxv8i32_nxv8i32_nxv8i16(<vscale x 8 x i32> %0, <vscale x 8 x i16> %1, <vscale x 8 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv8i32_nxv8i32_nxv8i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwsub.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwsub.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i32> @llvm.riscv.vwsub.w.mask.nxv8i32.nxv8i16(
     <vscale x 8 x i32> %0,
     <vscale x 8 x i32> %0,
     <vscale x 8 x i16> %1,
     <vscale x 8 x i1> %2,
     i64 %3)
 
   ret <vscale x 8 x i32> %a
 }
 
 define <vscale x 16 x i32> @intrinsic_vwsub.w_mask_wv_tie_nxv16i32_nxv16i32_nxv16i16(<vscale x 16 x i32> %0, <vscale x 16 x i16> %1, <vscale x 16 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv16i32_nxv16i32_nxv16i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwsub.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwsub.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 16 x i32> @llvm.riscv.vwsub.w.mask.nxv16i32.nxv16i16(
     <vscale x 16 x i32> %0,
     <vscale x 16 x i32> %0,
     <vscale x 16 x i16> %1,
     <vscale x 16 x i1> %2,
     i64 %3)
 
   ret <vscale x 16 x i32> %a
 }
 
 define <vscale x 1 x i64> @intrinsic_vwsub.w_mask_wv_tie_nxv1i64_nxv1i64_nxv1i32(<vscale x 1 x i64> %0, <vscale x 1 x i32> %1, <vscale x 1 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv1i64_nxv1i64_nxv1i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsub.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsub.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i64> @llvm.riscv.vwsub.w.mask.nxv1i64.nxv1i32(
     <vscale x 1 x i64> %0,
     <vscale x 1 x i64> %0,
     <vscale x 1 x i32> %1,
     <vscale x 1 x i1> %2,
     i64 %3)
 
   ret <vscale x 1 x i64> %a
 }
 
 define <vscale x 2 x i64> @intrinsic_vwsub.w_mask_wv_tie_nxv2i64_nxv2i64_nxv2i32(<vscale x 2 x i64> %0, <vscale x 2 x i32> %1, <vscale x 2 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv2i64_nxv2i64_nxv2i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwsub.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwsub.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i64> @llvm.riscv.vwsub.w.mask.nxv2i64.nxv2i32(
     <vscale x 2 x i64> %0,
     <vscale x 2 x i64> %0,
     <vscale x 2 x i32> %1,
     <vscale x 2 x i1> %2,
     i64 %3)
 
   ret <vscale x 2 x i64> %a
 }
 
 define <vscale x 4 x i64> @intrinsic_vwsub.w_mask_wv_tie_nxv4i64_nxv4i64_nxv4i32(<vscale x 4 x i64> %0, <vscale x 4 x i32> %1, <vscale x 4 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv4i64_nxv4i64_nxv4i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwsub.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwsub.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i64> @llvm.riscv.vwsub.w.mask.nxv4i64.nxv4i32(
     <vscale x 4 x i64> %0,
     <vscale x 4 x i64> %0,
     <vscale x 4 x i32> %1,
     <vscale x 4 x i1> %2,
     i64 %3)
 
   ret <vscale x 4 x i64> %a
 }
 
 define <vscale x 8 x i64> @intrinsic_vwsub.w_mask_wv_tie_nxv8i64_nxv8i64_nxv8i32(<vscale x 8 x i64> %0, <vscale x 8 x i32> %1, <vscale x 8 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsub.w_mask_wv_tie_nxv8i64_nxv8i64_nxv8i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwsub.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwsub.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i64> @llvm.riscv.vwsub.w.mask.nxv8i64.nxv8i32(
     <vscale x 8 x i64> %0,
     <vscale x 8 x i64> %0,
     <vscale x 8 x i32> %1,
     <vscale x 8 x i1> %2,
     i64 %3)

llvm/test/CodeGen/RISCV/rvv/vwsubu.w-rv32.ll

entry:
 
   ret <vscale x 8 x i64> %a
 }
 
 define <vscale x 1 x i16> @intrinsic_vwsubu.w_mask_wv_tie_nxv1i16_nxv1i16_nxv1i8(<vscale x 1 x i16> %0, <vscale x 1 x i8> %1, <vscale x 1 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv1i16_nxv1i16_nxv1i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf8,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsubu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsubu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i16> @llvm.riscv.vwsubu.w.mask.nxv1i16.nxv1i8(
     <vscale x 1 x i16> %0,
     <vscale x 1 x i16> %0,
     <vscale x 1 x i8> %1,
     <vscale x 1 x i1> %2,
     i32 %3)
 
   ret <vscale x 1 x i16> %a
 }
 
 define <vscale x 2 x i16> @intrinsic_vwsubu.w_mask_wv_tie_nxv2i16_nxv2i16_nxv2i8(<vscale x 2 x i16> %0, <vscale x 2 x i8> %1, <vscale x 2 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv2i16_nxv2i16_nxv2i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf4,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsubu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsubu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i16> @llvm.riscv.vwsubu.w.mask.nxv2i16.nxv2i8(
     <vscale x 2 x i16> %0,
     <vscale x 2 x i16> %0,
     <vscale x 2 x i8> %1,
     <vscale x 2 x i1> %2,
     i32 %3)
 
   ret <vscale x 2 x i16> %a
 }
 
 define <vscale x 4 x i16> @intrinsic_vwsubu.w_mask_wv_tie_nxv4i16_nxv4i16_nxv4i8(<vscale x 4 x i16> %0, <vscale x 4 x i8> %1, <vscale x 4 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv4i16_nxv4i16_nxv4i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsubu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsubu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i16> @llvm.riscv.vwsubu.w.mask.nxv4i16.nxv4i8(
     <vscale x 4 x i16> %0,
     <vscale x 4 x i16> %0,
     <vscale x 4 x i8> %1,
     <vscale x 4 x i1> %2,
     i32 %3)
 
   ret <vscale x 4 x i16> %a
 }
 
 define <vscale x 8 x i16> @intrinsic_vwsubu.w_mask_wv_tie_nxv8i16_nxv8i16_nxv8i8(<vscale x 8 x i16> %0, <vscale x 8 x i8> %1, <vscale x 8 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv8i16_nxv8i16_nxv8i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwsubu.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwsubu.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i16> @llvm.riscv.vwsubu.w.mask.nxv8i16.nxv8i8(
     <vscale x 8 x i16> %0,
     <vscale x 8 x i16> %0,
     <vscale x 8 x i8> %1,
     <vscale x 8 x i1> %2,
     i32 %3)
 
   ret <vscale x 8 x i16> %a
 }
 
 define <vscale x 16 x i16> @intrinsic_vwsubu.w_mask_wv_tie_nxv16i16_nxv16i16_nxv16i8(<vscale x 16 x i16> %0, <vscale x 16 x i8> %1, <vscale x 16 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv16i16_nxv16i16_nxv16i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwsubu.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwsubu.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 16 x i16> @llvm.riscv.vwsubu.w.mask.nxv16i16.nxv16i8(
     <vscale x 16 x i16> %0,
     <vscale x 16 x i16> %0,
     <vscale x 16 x i8> %1,
     <vscale x 16 x i1> %2,
     i32 %3)
 
   ret <vscale x 16 x i16> %a
 }
 
 define <vscale x 32 x i16> @intrinsic_vwsubu.w_mask_wv_tie_nxv32i16_nxv32i16_nxv32i8(<vscale x 32 x i16> %0, <vscale x 32 x i8> %1, <vscale x 32 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv32i16_nxv32i16_nxv32i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwsubu.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwsubu.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 32 x i16> @llvm.riscv.vwsubu.w.mask.nxv32i16.nxv32i8(
     <vscale x 32 x i16> %0,
     <vscale x 32 x i16> %0,
     <vscale x 32 x i8> %1,
     <vscale x 32 x i1> %2,
     i32 %3)
 
   ret <vscale x 32 x i16> %a
 }
 
 define <vscale x 1 x i32> @intrinsic_vwsubu.w_mask_wv_tie_nxv1i32_nxv1i32_nxv1i16(<vscale x 1 x i32> %0, <vscale x 1 x i16> %1, <vscale x 1 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv1i32_nxv1i32_nxv1i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf4,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsubu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsubu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i32> @llvm.riscv.vwsubu.w.mask.nxv1i32.nxv1i16(
     <vscale x 1 x i32> %0,
     <vscale x 1 x i32> %0,
     <vscale x 1 x i16> %1,
     <vscale x 1 x i1> %2,
     i32 %3)
 
   ret <vscale x 1 x i32> %a
 }
 
 define <vscale x 2 x i32> @intrinsic_vwsubu.w_mask_wv_tie_nxv2i32_nxv2i32_nxv2i16(<vscale x 2 x i32> %0, <vscale x 2 x i16> %1, <vscale x 2 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv2i32_nxv2i32_nxv2i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsubu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsubu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i32> @llvm.riscv.vwsubu.w.mask.nxv2i32.nxv2i16(
     <vscale x 2 x i32> %0,
     <vscale x 2 x i32> %0,
     <vscale x 2 x i16> %1,
     <vscale x 2 x i1> %2,
     i32 %3)
 
   ret <vscale x 2 x i32> %a
 }
 
 define <vscale x 4 x i32> @intrinsic_vwsubu.w_mask_wv_tie_nxv4i32_nxv4i32_nxv4i16(<vscale x 4 x i32> %0, <vscale x 4 x i16> %1, <vscale x 4 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv4i32_nxv4i32_nxv4i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwsubu.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwsubu.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i32> @llvm.riscv.vwsubu.w.mask.nxv4i32.nxv4i16(
     <vscale x 4 x i32> %0,
     <vscale x 4 x i32> %0,
     <vscale x 4 x i16> %1,
     <vscale x 4 x i1> %2,
     i32 %3)
 
   ret <vscale x 4 x i32> %a
 }
 
 define <vscale x 8 x i32> @intrinsic_vwsubu.w_mask_wv_tie_nxv8i32_nxv8i32_nxv8i16(<vscale x 8 x i32> %0, <vscale x 8 x i16> %1, <vscale x 8 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv8i32_nxv8i32_nxv8i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwsubu.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwsubu.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i32> @llvm.riscv.vwsubu.w.mask.nxv8i32.nxv8i16(
     <vscale x 8 x i32> %0,
     <vscale x 8 x i32> %0,
     <vscale x 8 x i16> %1,
     <vscale x 8 x i1> %2,
     i32 %3)
 
   ret <vscale x 8 x i32> %a
 }
 
 define <vscale x 16 x i32> @intrinsic_vwsubu.w_mask_wv_tie_nxv16i32_nxv16i32_nxv16i16(<vscale x 16 x i32> %0, <vscale x 16 x i16> %1, <vscale x 16 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv16i32_nxv16i32_nxv16i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwsubu.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwsubu.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 16 x i32> @llvm.riscv.vwsubu.w.mask.nxv16i32.nxv16i16(
     <vscale x 16 x i32> %0,
     <vscale x 16 x i32> %0,
     <vscale x 16 x i16> %1,
     <vscale x 16 x i1> %2,
     i32 %3)
 
   ret <vscale x 16 x i32> %a
 }
 
 define <vscale x 1 x i64> @intrinsic_vwsubu.w_mask_wv_tie_nxv1i64_nxv1i64_nxv1i32(<vscale x 1 x i64> %0, <vscale x 1 x i32> %1, <vscale x 1 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv1i64_nxv1i64_nxv1i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsubu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsubu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i64> @llvm.riscv.vwsubu.w.mask.nxv1i64.nxv1i32(
     <vscale x 1 x i64> %0,
     <vscale x 1 x i64> %0,
     <vscale x 1 x i32> %1,
     <vscale x 1 x i1> %2,
     i32 %3)
 
   ret <vscale x 1 x i64> %a
 }
 
 define <vscale x 2 x i64> @intrinsic_vwsubu.w_mask_wv_tie_nxv2i64_nxv2i64_nxv2i32(<vscale x 2 x i64> %0, <vscale x 2 x i32> %1, <vscale x 2 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv2i64_nxv2i64_nxv2i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwsubu.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwsubu.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i64> @llvm.riscv.vwsubu.w.mask.nxv2i64.nxv2i32(
     <vscale x 2 x i64> %0,
     <vscale x 2 x i64> %0,
     <vscale x 2 x i32> %1,
     <vscale x 2 x i1> %2,
     i32 %3)
 
   ret <vscale x 2 x i64> %a
 }
 
 define <vscale x 4 x i64> @intrinsic_vwsubu.w_mask_wv_tie_nxv4i64_nxv4i64_nxv4i32(<vscale x 4 x i64> %0, <vscale x 4 x i32> %1, <vscale x 4 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv4i64_nxv4i64_nxv4i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwsubu.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwsubu.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i64> @llvm.riscv.vwsubu.w.mask.nxv4i64.nxv4i32(
     <vscale x 4 x i64> %0,
     <vscale x 4 x i64> %0,
     <vscale x 4 x i32> %1,
     <vscale x 4 x i1> %2,
     i32 %3)
 
   ret <vscale x 4 x i64> %a
 }
 
 define <vscale x 8 x i64> @intrinsic_vwsubu.w_mask_wv_tie_nxv8i64_nxv8i64_nxv8i32(<vscale x 8 x i64> %0, <vscale x 8 x i32> %1, <vscale x 8 x i1> %2, i32 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv8i64_nxv8i64_nxv8i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwsubu.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwsubu.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i64> @llvm.riscv.vwsubu.w.mask.nxv8i64.nxv8i32(
     <vscale x 8 x i64> %0,
     <vscale x 8 x i64> %0,
     <vscale x 8 x i32> %1,
     <vscale x 8 x i1> %2,
     i32 %3)

llvm/test/CodeGen/RISCV/rvv/vwsubu.w-rv64.ll

entry:
 
   ret <vscale x 8 x i64> %a
 }
 
 define <vscale x 1 x i16> @intrinsic_vwsubu.w_mask_wv_tie_nxv1i16_nxv1i16_nxv1i8(<vscale x 1 x i16> %0, <vscale x 1 x i8> %1, <vscale x 1 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv1i16_nxv1i16_nxv1i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf8,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsubu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsubu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i16> @llvm.riscv.vwsubu.w.mask.nxv1i16.nxv1i8(
     <vscale x 1 x i16> %0,
     <vscale x 1 x i16> %0,
     <vscale x 1 x i8> %1,
     <vscale x 1 x i1> %2,
     i64 %3)
 
   ret <vscale x 1 x i16> %a
 }
 
 define <vscale x 2 x i16> @intrinsic_vwsubu.w_mask_wv_tie_nxv2i16_nxv2i16_nxv2i8(<vscale x 2 x i16> %0, <vscale x 2 x i8> %1, <vscale x 2 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv2i16_nxv2i16_nxv2i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf4,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsubu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsubu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i16> @llvm.riscv.vwsubu.w.mask.nxv2i16.nxv2i8(
     <vscale x 2 x i16> %0,
     <vscale x 2 x i16> %0,
     <vscale x 2 x i8> %1,
     <vscale x 2 x i1> %2,
     i64 %3)
 
   ret <vscale x 2 x i16> %a
 }
 
 define <vscale x 4 x i16> @intrinsic_vwsubu.w_mask_wv_tie_nxv4i16_nxv4i16_nxv4i8(<vscale x 4 x i16> %0, <vscale x 4 x i8> %1, <vscale x 4 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv4i16_nxv4i16_nxv4i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsubu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsubu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i16> @llvm.riscv.vwsubu.w.mask.nxv4i16.nxv4i8(
     <vscale x 4 x i16> %0,
     <vscale x 4 x i16> %0,
     <vscale x 4 x i8> %1,
     <vscale x 4 x i1> %2,
     i64 %3)
 
   ret <vscale x 4 x i16> %a
 }
 
 define <vscale x 8 x i16> @intrinsic_vwsubu.w_mask_wv_tie_nxv8i16_nxv8i16_nxv8i8(<vscale x 8 x i16> %0, <vscale x 8 x i8> %1, <vscale x 8 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv8i16_nxv8i16_nxv8i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwsubu.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwsubu.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i16> @llvm.riscv.vwsubu.w.mask.nxv8i16.nxv8i8(
     <vscale x 8 x i16> %0,
     <vscale x 8 x i16> %0,
     <vscale x 8 x i8> %1,
     <vscale x 8 x i1> %2,
     i64 %3)
 
   ret <vscale x 8 x i16> %a
 }
 
 define <vscale x 16 x i16> @intrinsic_vwsubu.w_mask_wv_tie_nxv16i16_nxv16i16_nxv16i8(<vscale x 16 x i16> %0, <vscale x 16 x i8> %1, <vscale x 16 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv16i16_nxv16i16_nxv16i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwsubu.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwsubu.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 16 x i16> @llvm.riscv.vwsubu.w.mask.nxv16i16.nxv16i8(
     <vscale x 16 x i16> %0,
     <vscale x 16 x i16> %0,
     <vscale x 16 x i8> %1,
     <vscale x 16 x i1> %2,
     i64 %3)
 
   ret <vscale x 16 x i16> %a
 }
 
 define <vscale x 32 x i16> @intrinsic_vwsubu.w_mask_wv_tie_nxv32i16_nxv32i16_nxv32i8(<vscale x 32 x i16> %0, <vscale x 32 x i8> %1, <vscale x 32 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv32i16_nxv32i16_nxv32i8:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e8,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwsubu.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwsubu.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 32 x i16> @llvm.riscv.vwsubu.w.mask.nxv32i16.nxv32i8(
     <vscale x 32 x i16> %0,
     <vscale x 32 x i16> %0,
     <vscale x 32 x i8> %1,
     <vscale x 32 x i1> %2,
     i64 %3)
 
   ret <vscale x 32 x i16> %a
 }
 
 define <vscale x 1 x i32> @intrinsic_vwsubu.w_mask_wv_tie_nxv1i32_nxv1i32_nxv1i16(<vscale x 1 x i32> %0, <vscale x 1 x i16> %1, <vscale x 1 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv1i32_nxv1i32_nxv1i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf4,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsubu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsubu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i32> @llvm.riscv.vwsubu.w.mask.nxv1i32.nxv1i16(
     <vscale x 1 x i32> %0,
     <vscale x 1 x i32> %0,
     <vscale x 1 x i16> %1,
     <vscale x 1 x i1> %2,
     i64 %3)
 
   ret <vscale x 1 x i32> %a
 }
 
 define <vscale x 2 x i32> @intrinsic_vwsubu.w_mask_wv_tie_nxv2i32_nxv2i32_nxv2i16(<vscale x 2 x i32> %0, <vscale x 2 x i16> %1, <vscale x 2 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv2i32_nxv2i32_nxv2i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsubu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsubu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i32> @llvm.riscv.vwsubu.w.mask.nxv2i32.nxv2i16(
     <vscale x 2 x i32> %0,
     <vscale x 2 x i32> %0,
     <vscale x 2 x i16> %1,
     <vscale x 2 x i1> %2,
     i64 %3)
 
   ret <vscale x 2 x i32> %a
 }
 
 define <vscale x 4 x i32> @intrinsic_vwsubu.w_mask_wv_tie_nxv4i32_nxv4i32_nxv4i16(<vscale x 4 x i32> %0, <vscale x 4 x i16> %1, <vscale x 4 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv4i32_nxv4i32_nxv4i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwsubu.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwsubu.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i32> @llvm.riscv.vwsubu.w.mask.nxv4i32.nxv4i16(
     <vscale x 4 x i32> %0,
     <vscale x 4 x i32> %0,
     <vscale x 4 x i16> %1,
     <vscale x 4 x i1> %2,
     i64 %3)
 
   ret <vscale x 4 x i32> %a
 }
 
 define <vscale x 8 x i32> @intrinsic_vwsubu.w_mask_wv_tie_nxv8i32_nxv8i32_nxv8i16(<vscale x 8 x i32> %0, <vscale x 8 x i16> %1, <vscale x 8 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv8i32_nxv8i32_nxv8i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwsubu.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwsubu.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i32> @llvm.riscv.vwsubu.w.mask.nxv8i32.nxv8i16(
     <vscale x 8 x i32> %0,
     <vscale x 8 x i32> %0,
     <vscale x 8 x i16> %1,
     <vscale x 8 x i1> %2,
     i64 %3)
 
   ret <vscale x 8 x i32> %a
 }
 
 define <vscale x 16 x i32> @intrinsic_vwsubu.w_mask_wv_tie_nxv16i32_nxv16i32_nxv16i16(<vscale x 16 x i32> %0, <vscale x 16 x i16> %1, <vscale x 16 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv16i32_nxv16i32_nxv16i16:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e16,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwsubu.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwsubu.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 16 x i32> @llvm.riscv.vwsubu.w.mask.nxv16i32.nxv16i16(
     <vscale x 16 x i32> %0,
     <vscale x 16 x i32> %0,
     <vscale x 16 x i16> %1,
     <vscale x 16 x i1> %2,
     i64 %3)
 
   ret <vscale x 16 x i32> %a
 }
 
 define <vscale x 1 x i64> @intrinsic_vwsubu.w_mask_wv_tie_nxv1i64_nxv1i64_nxv1i32(<vscale x 1 x i64> %0, <vscale x 1 x i32> %1, <vscale x 1 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv1i64_nxv1i64_nxv1i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,mf2,tu,mu
-; CHECK-NEXT:    vmv1r.v v25, v8
-; CHECK-NEXT:    vwsubu.wv v25, v8, v9, v0.t
-; CHECK-NEXT:    vmv1r.v v8, v25
+; CHECK-NEXT:    vwsubu.wv v8, v8, v9, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 1 x i64> @llvm.riscv.vwsubu.w.mask.nxv1i64.nxv1i32(
     <vscale x 1 x i64> %0,
     <vscale x 1 x i64> %0,
     <vscale x 1 x i32> %1,
     <vscale x 1 x i1> %2,
     i64 %3)
 
   ret <vscale x 1 x i64> %a
 }
 
 define <vscale x 2 x i64> @intrinsic_vwsubu.w_mask_wv_tie_nxv2i64_nxv2i64_nxv2i32(<vscale x 2 x i64> %0, <vscale x 2 x i32> %1, <vscale x 2 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv2i64_nxv2i64_nxv2i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m1,tu,mu
-; CHECK-NEXT:    vmv2r.v v26, v8
-; CHECK-NEXT:    vwsubu.wv v26, v8, v10, v0.t
-; CHECK-NEXT:    vmv2r.v v8, v26
+; CHECK-NEXT:    vwsubu.wv v8, v8, v10, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 2 x i64> @llvm.riscv.vwsubu.w.mask.nxv2i64.nxv2i32(
     <vscale x 2 x i64> %0,
     <vscale x 2 x i64> %0,
     <vscale x 2 x i32> %1,
     <vscale x 2 x i1> %2,
     i64 %3)
 
   ret <vscale x 2 x i64> %a
 }
 
 define <vscale x 4 x i64> @intrinsic_vwsubu.w_mask_wv_tie_nxv4i64_nxv4i64_nxv4i32(<vscale x 4 x i64> %0, <vscale x 4 x i32> %1, <vscale x 4 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv4i64_nxv4i64_nxv4i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m2,tu,mu
-; CHECK-NEXT:    vmv4r.v v28, v8
-; CHECK-NEXT:    vwsubu.wv v28, v8, v12, v0.t
-; CHECK-NEXT:    vmv4r.v v8, v28
+; CHECK-NEXT:    vwsubu.wv v8, v8, v12, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 4 x i64> @llvm.riscv.vwsubu.w.mask.nxv4i64.nxv4i32(
     <vscale x 4 x i64> %0,
     <vscale x 4 x i64> %0,
     <vscale x 4 x i32> %1,
     <vscale x 4 x i1> %2,
     i64 %3)
 
   ret <vscale x 4 x i64> %a
 }
 
 define <vscale x 8 x i64> @intrinsic_vwsubu.w_mask_wv_tie_nxv8i64_nxv8i64_nxv8i32(<vscale x 8 x i64> %0, <vscale x 8 x i32> %1, <vscale x 8 x i1> %2, i64 %3) nounwind {
 ; CHECK-LABEL: intrinsic_vwsubu.w_mask_wv_tie_nxv8i64_nxv8i64_nxv8i32:
 ; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    vsetvli zero, a0, e32,m4,tu,mu
-; CHECK-NEXT:    vmv8r.v v24, v8
-; CHECK-NEXT:    vwsubu.wv v24, v8, v16, v0.t
-; CHECK-NEXT:    vmv8r.v v8, v24
+; CHECK-NEXT:    vwsubu.wv v8, v8, v16, v0.t
 ; CHECK-NEXT:    ret
 entry:
   %a = call <vscale x 8 x i64> @llvm.riscv.vwsubu.w.mask.nxv8i64.nxv8i32(
     <vscale x 8 x i64> %0,
     <vscale x 8 x i64> %0,
     <vscale x 8 x i32> %1,
     <vscale x 8 x i1> %2,
     i64 %3)