[RISCV] Support scalable-vector masked gather operations

[frasercrmck]

Summary

This patch supports the masked gather intrinsics in RVV.

The RVV indexed load/store instructions only support the "unsigned unscaled"
addressing mode; indices are implicitly zero-extended or truncated to XLEN and
are treated as byte offsets. This ISA supports the intrinsics directly, but not
the majority of various forms of the MGATHER SDNode that LLVM combines to. Any
signed or scaled indexing is extended to the XLEN value type and scaled
accordingly. This is done during DAG combining as widening the index types to
XLEN may produce illegal vectors that require splitting, e.g.
nxv16i8->nxv16i64.

Support for scalable-vector CONCAT_VECTORS was added to avoid spilling via the
stack when lowering split legalized index operands.

[frasercrmck]

llvm/lib/Target/RISCV/RISCVISelLowering.cpp

1755

I'll add tests in case LLVM tries to create "ext loads" out of these. We'd have to undo that if that were the case.

llvm/lib/Target/RISCV/RISCVInstrInfoVSDPatterns.td

92

We can improve codegen for when the mask is known "true".

427

This is (helpfully) copy/pasted from VPseudos.td. Is there a way to create a "list" (e.g. of val/idx tuples) there which we reuse here?

[frasercrmck]

• optimize for known true masks
• remove accidental CHECKs

[frasercrmck]

• test for extloads

[craig.topper]

llvm/lib/Target/RISCV/RISCVISelLowering.cpp

1778

Is it possible that IndexVT has 32-bit elements on a 64-bit target and that the IndexVT is already LMUL==8 such that this SIGN_EXTEND/ZERO_EXTEND would produce an illegal LMUL==16 type?

1788

Assert that this is a power of 2. I'm not completely sure that's guaranteed, but maybe it is for the types we expect to see.

[frasercrmck]

• rebase
• assert on a power-of-two scale

llvm/lib/Target/RISCV/RISCVISelLowering.cpp

1778

Yes, it's possible, and similarly on a 32-bit target with an illegal 8- or 16-bit index type, but I think that implies the original intrinsic would have an illegal pointer type, like <vscale x 16 x i32*>. So in that sense it's ideally something LLVM would help legalize (split) for us, but sadly it folds the illegal intrinsic to one with legal types, e.g.: i32* base, <vscale x 16 x i32> idxs so it doesn't see that until it asks us to custom-lower.

Am I right in thinking we have to custom-legalize this ourselves, duplicating logic from LegalizeVectorTypes?

1788

Good idea.

[frasercrmck]

llvm/lib/Target/RISCV/RISCVISelLowering.cpp

1778

It should be possible to do a DAGCombine pre-legalization which creates the illegal XLEN index types and passes it back to go through the vanilla legalization, if you think that's a valid route.

Either way it's going to require support for scalable-vector insert/extract subvector. In the worst case we'll have to expand nxv64i64 (from nxv64i8) into 8 x nxv8i64.

[craig.topper]

llvm/lib/Target/RISCV/RISCVISelLowering.cpp

1778

Would the DAG combine end up fighting with the combine that uses shouldRemoveExtendFromGSIndex?

[frasercrmck]

llvm/lib/Target/RISCV/RISCVISelLowering.cpp

1778

It does, so you have to turn off that hook. I don't think that's the worst thing for our gathers since only UNSIGNED UNSCALED can be represented as index types smaller than XLEN, and I couldn't find anything that would generate that.

[frasercrmck]

• rebase
• legalize addressing mode in pre-legalize DAGCombine
• lower to intrinsics to limit pattern bloat
• test vectors that need splitting

[frasercrmck]

• rebase

[frasercrmck]

• account for frame layout changes

[craig.topper]

LGTM

llvm/lib/Target/RISCV/RISCVISelLowering.h

enum NodeType : unsigned {
   VECREDUCE_SMAX,
   VECREDUCE_UMIN,
   VECREDUCE_SMIN,
   VECREDUCE_AND,
   VECREDUCE_OR,
   VECREDUCE_XOR,
   VECREDUCE_FADD,
   VECREDUCE_SEQ_FADD,
+  MGATHER = ISD::FIRST_TARGET_MEMORY_OPCODE,
 };
 } // namespace RISCVISD
 
 class RISCVTargetLowering : public TargetLowering {
   const RISCVSubtarget &Subtarget;
 
 public:
   explicit RISCVTargetLowering(const TargetMachine &TM,
public:
   TargetLowering::AtomicExpansionKind
   shouldExpandAtomicCmpXchgInIR(AtomicCmpXchgInst *CI) const override;
   Value *emitMaskedAtomicCmpXchgIntrinsic(IRBuilder<> &Builder,
                                           AtomicCmpXchgInst *CI,
                                           Value *AlignedAddr, Value *CmpVal,
                                           Value *NewVal, Value *Mask,
                                           AtomicOrdering Ord) const override;
 
+  bool shouldRemoveExtendFromGSIndex(EVT VT) const override;
+
 private:
   void analyzeInputArgs(MachineFunction &MF, CCState &CCInfo,
                         const SmallVectorImpl<ISD::InputArg> &Ins,
                         bool IsRet) const;
   void analyzeOutputArgs(MachineFunction &MF, CCState &CCInfo,
                          const SmallVectorImpl<ISD::OutputArg> &Outs,
                          bool IsRet, CallLoweringInfo *CLI) const;
 
SDValue lowerVectorMaskExt(SDValue Op, SelectionDAG &DAG,
                              int64_t ExtTrueVal) const;
   SDValue lowerVectorMaskTrunc(SDValue Op, SelectionDAG &DAG) const;
   SDValue lowerINSERT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG) const;
   SDValue lowerEXTRACT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG) const;
   SDValue LowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG) const;
   SDValue LowerINTRINSIC_W_CHAIN(SDValue Op, SelectionDAG &DAG) const;
   SDValue lowerVECREDUCE(SDValue Op, SelectionDAG &DAG) const;
   SDValue lowerFPVECREDUCE(SDValue Op, SelectionDAG &DAG) const;
+  SDValue lowerMGATHER(SDValue Op, SelectionDAG &DAG) const;
 
   bool isEligibleForTailCallOptimization(
       CCState &CCInfo, CallLoweringInfo &CLI, MachineFunction &MF,
       const SmallVector<CCValAssign, 16> &ArgLocs) const;
 
   /// Generate error diagnostics if any register used by CC has been marked
   /// reserved.
   void validateCCReservedRegs(

llvm/lib/Target/RISCV/RISCVISelLowering.cpp

for (MVT VT : IntVecVTs) {
       setOperationAction(ISD::VECREDUCE_ADD, VT, Custom);
       setOperationAction(ISD::VECREDUCE_AND, VT, Custom);
       setOperationAction(ISD::VECREDUCE_OR, VT, Custom);
       setOperationAction(ISD::VECREDUCE_XOR, VT, Custom);
       setOperationAction(ISD::VECREDUCE_SMAX, VT, Custom);
       setOperationAction(ISD::VECREDUCE_SMIN, VT, Custom);
       setOperationAction(ISD::VECREDUCE_UMAX, VT, Custom);
       setOperationAction(ISD::VECREDUCE_UMIN, VT, Custom);
+
+      setOperationAction(ISD::MGATHER, VT, Custom);
     }
 
     // Expand various CCs to best match the RVV ISA, which natively supports UNE
     // but no other unordered comparisons, and supports all ordered comparisons
     // except ONE. Additionally, we expand GT,OGT,GE,OGE for optimization
     // purposes; they are expanded to their swapped-operand CCs (LT,OLT,LE,OLE),
     // and we pattern-match those back to the "original", swapping operands once
     // more. This way we catch both operations and both "vf" and "fv" forms with
const auto SetCommonVFPActions = [&](MVT VT) {
       setOperationAction(ISD::INSERT_VECTOR_ELT, VT, Custom);
       setOperationAction(ISD::EXTRACT_VECTOR_ELT, VT, Custom);
       // Expand various condition codes (explained above).
       for (auto CC : VFPCCToExpand)
         setCondCodeAction(CC, VT, Expand);
 
       setOperationAction(ISD::VECREDUCE_FADD, VT, Custom);
       setOperationAction(ISD::VECREDUCE_SEQ_FADD, VT, Custom);
+
+      setOperationAction(ISD::MGATHER, VT, Custom);
     };
 
     if (Subtarget.hasStdExtZfh())
       for (MVT VT : F16VecVTs)
         SetCommonVFPActions(VT);
 
     if (Subtarget.hasStdExtF())
       for (MVT VT : F32VecVTs)
SDValue RISCVTargetLowering::LowerOperation(SDValue Op,
   case ISD::VECREDUCE_SMIN:
   case ISD::VECREDUCE_AND:
   case ISD::VECREDUCE_OR:
   case ISD::VECREDUCE_XOR:
     return lowerVECREDUCE(Op, DAG);
   case ISD::VECREDUCE_FADD:
   case ISD::VECREDUCE_SEQ_FADD:
     return lowerFPVECREDUCE(Op, DAG);
+  case ISD::MGATHER:
+    return lowerMGATHER(Op, DAG);
   }
 }
 
 static SDValue getTargetNode(GlobalAddressSDNode *N, SDLoc DL, EVT Ty,
                              SelectionDAG &DAG, unsigned Flags) {
   return DAG.getTargetGlobalAddress(N->getGlobal(), DL, Ty, 0, Flags);
 }
 
std::tie(RVVOpcode, VectorVal, ScalarVal) =
       getRVVFPReductionOpAndOperands(Op, DAG, VecEltVT);
 
   SDValue ScalarSplat = DAG.getSplatVector(M1VT, DL, ScalarVal);
   SDValue Reduction = DAG.getNode(RVVOpcode, DL, M1VT, VectorVal, ScalarSplat);
   return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, DL, VecEltVT, Reduction,
                      DAG.getConstant(0, DL, Subtarget.getXLenVT()));
 }
 
+// Custom lower MGATHER to a legalized form for RVV. It will then be matched to
+// a RVV indexed load. The RVV indexed load/store instructions only support the
+// "unsigned unscaled" addressing mode; indices are implicitly zero-extended or
+// truncated to XLEN and are treated as byte offsets. Any signed or scaled
+// indexing is extended to the XLEN value type and scaled accordingly.
+SDValue RISCVTargetLowering::lowerMGATHER(SDValue Op, SelectionDAG &DAG) const {
+  MaskedGatherSDNode *N = cast<MaskedGatherSDNode>(Op.getNode());
+  SDLoc DL(Op);
+  MVT VT = Op.getSimpleValueType();
+  SDValue Index = N->getIndex();
+  SDValue Mask = N->getMask();
+  SDValue PassThru = N->getPassThru();
+  MVT IndexVT = Index.getSimpleValueType();
+
+  MVT XLenVT = Subtarget.getXLenVT();
+  assert(N->getBasePtr().getSimpleValueType() == XLenVT &&
+         "Unexpected pointer type");
+
+  // RISCV indexed loads only support the "unsigned unscaled" addressing mode,
+  // so anything else must be manually legalized.
+  if (N->isIndexScaled() ||
+      (N->isIndexSigned() && IndexVT.getVectorElementType().bitsLT(XLenVT))) {
+    // Scale the indices up to pointer size (XLEN). This is required for all
+    // signed indices (we need the sign bit at position XLEN-1) and for
+    // unsigned scaled indices it helps prevent overflow when scaling.
+    if (IndexVT.getVectorElementType().bitsLT(XLenVT)) {
+      IndexVT = IndexVT.changeVectorElementType(XLenVT);
+      Index =
+          DAG.getNode(N->isIndexSigned() ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND,
+                      DL, IndexVT, Index);
+    }
+    // Manually scale the indices by the element size
+    if (N->isIndexScaled() && N->getConstantOperandVal(5) != 1) {
+      bool IsRV32E64 =
+          !Subtarget.is64Bit() && IndexVT.getVectorElementType() == MVT::i64;
+      SDValue SplatScale = DAG.getConstant(Log2_32(N->getConstantOperandVal(5)),
+                                           DL, Subtarget.getXLenVT());
+      if (!IsRV32E64)
+        SplatScale = DAG.getSplatVector(IndexVT, DL, SplatScale);
+      else
+        SplatScale =
+            DAG.getNode(RISCVISD::SPLAT_VECTOR_I64, DL, IndexVT, SplatScale);
+      Index = DAG.getNode(ISD::SHL, DL, IndexVT, Index, SplatScale);
+    }
+  }
+
+  SDValue Ops[] = {N->getChain(), PassThru, N->getBasePtr(), Index, Mask};
+  return DAG.getMemIntrinsicNode(RISCVISD::MGATHER, DL,
+                                 DAG.getVTList(VT, MVT::Other), Ops,
+                                 N->getMemoryVT(), N->getMemOperand());
+}
+
 // Returns the opcode of the target-specific SDNode that implements the 32-bit
 // form of the given Opcode.
 static RISCVISD::NodeType getRISCVWOpcode(unsigned Opcode) {
   switch (Opcode) {
   default:
     llvm_unreachable("Unexpected opcode");
   case ISD::SHL:
     return RISCVISD::SLLW;
#define NODE_NAME_CASE(NODE)                                                   \
   NODE_NAME_CASE(VECREDUCE_SMAX)
   NODE_NAME_CASE(VECREDUCE_UMIN)
   NODE_NAME_CASE(VECREDUCE_SMIN)
   NODE_NAME_CASE(VECREDUCE_AND)
   NODE_NAME_CASE(VECREDUCE_OR)
   NODE_NAME_CASE(VECREDUCE_XOR)
   NODE_NAME_CASE(VECREDUCE_FADD)
   NODE_NAME_CASE(VECREDUCE_SEQ_FADD)
+  NODE_NAME_CASE(MGATHER)
   }
   // clang-format on
   return nullptr;
 #undef NODE_NAME_CASE
 }
 
 /// getConstraintType - Given a constraint letter, return the type of
 /// constraint it is for this target.
Function *MaskedCmpXchg =
       Intrinsic::getDeclaration(CI->getModule(), CmpXchgIntrID, Tys);
   Value *Result = Builder.CreateCall(
       MaskedCmpXchg, {AlignedAddr, CmpVal, NewVal, Mask, Ordering});
   if (XLen == 64)
     Result = Builder.CreateTrunc(Result, Builder.getInt32Ty());
   return Result;
 }
 
+bool RISCVTargetLowering::shouldRemoveExtendFromGSIndex(EVT VT) const {
+  EVT EltVT = VT.getVectorElementType();
+  return EltVT == MVT::i8 || EltVT == MVT::i16 || EltVT == MVT::i32;
+}
+
 bool RISCVTargetLowering::isFMAFasterThanFMulAndFAdd(const MachineFunction &MF,
                                                      EVT VT) const {
   VT = VT.getScalarType();
 
   if (!VT.isSimple())
     return false;
 
   switch (VT.getSimpleVT().SimpleTy) {

llvm/lib/Target/RISCV/RISCVInstrInfoVSDPatterns.td

multiclass VPatUSLoadStoreMaskSDNode<MTypeInfo m>
   // Load
   def : Pat<(m.Mask (load RVVBaseAddr:$rs1)),
             (load_instr RVVBaseAddr:$rs1, m.AVL, m.SEW)>;
   // Store
   def : Pat<(store m.Mask:$rs2, RVVBaseAddr:$rs1),
             (store_instr VR:$rs2, RVVBaseAddr:$rs1, m.AVL, m.SEW)>;
 }
 
+def riscv_mgather : SDNode<"RISCVISD::MGATHER",
+                           SDTypeProfile<1, 4, [SDTCisVT<2, XLenVT>]>,
+                           [SDNPHasChain, SDNPMayLoad, SDNPMemOperand]>;
+
+multiclass VPatILoadStoreSDNode<VTypeInfo vti,
+                                VTypeInfo idx_vti, int eew> {
+  defvar iload_name = "PseudoVLOXEI"#eew#"_V_"#idx_vti.LMul.MX#"_"#vti.LMul.MX;
+  defvar iload_instr = !cast<Instruction>(iload_name);
+  defvar iload_instr_mask = !cast<Instruction>(iload_name # "_MASK");
+  // Load
+  def : Pat<(vti.Vector (riscv_mgather (vti.Vector srcvalue),
+                                       RVVBaseAddr:$rs1,
+                                       (idx_vti.Vector idx_vti.Vector:$rs2),
+                                       (vti.Mask immAllOnesV))),
+            (iload_instr $rs1, $rs2, vti.AVL, vti.SEW)>;
+  def : Pat<(vti.Vector (riscv_mgather (vti.Vector GetVRegNoV0<vti.RegClass>.R:$merge),
+                                       RVVBaseAddr:$rs1,
+                                       (idx_vti.Vector idx_vti.Vector:$rs2),
+                                       (vti.Mask VMaskOp:$vm))),
+            (iload_instr_mask $merge, $rs1, $rs2, $vm, vti.AVL, vti.SEW)>;
+}
+
 class VPatBinarySDNode_VV<SDNode vop,
                           string instruction_name,
                           ValueType result_type,
                           ValueType op_type,
                           ValueType mask_type,
                           int sew,
                           LMULInfo vlmul,
                           OutPatFrag avl,

 
 // 7.4. Vector Unit-Stride Instructions
 foreach vti = AllVectors in
   defm "" : VPatUSLoadStoreSDNode<vti.Vector, vti.SEW, vti.LMul,
                                   vti.AVL, vti.RegClass>;
 foreach mti = AllMasks in
   defm "" : VPatUSLoadStoreMaskSDNode<mti>;
 
+// 7.6. Vector Indexed Instructions
+foreach vti = AllVectors in {
+  foreach eew = EEWList in {
+
+    defvar vlmul = vti.LMul;
+    defvar octuple_lmul = octuple_from_str<vti.LMul.MX>.ret;
+    defvar log_sew = shift_amount<vti.SEW>.val;
+
+    // The data vector register group has EEW=SEW, EMUL=LMUL, while the offset
+    // vector register group has EEW encoding in the instruction and EMUL=(EEW/SEW)*LMUL.
+    // calculate octuple elmul which is (eew * octuple_lmul) >> log_sew
+    defvar octuple_elmul = !srl(!mul(eew, octuple_lmul), log_sew);
+    // legal octuple elmul should be more than 0 and less than equal 64
+    if !gt(octuple_elmul, 0) then {
+      if !le(octuple_elmul, 64) then {
+        defvar elmul_str = octuple_to_str<octuple_elmul>.ret;
+        //defvar elmul =!cast<LMULInfo>("V_" # elmul_str);
+        defvar idx_vti = !cast<VTypeInfo>("VI" # eew # elmul_str);
+        defm "" : VPatILoadStoreSDNode<vti, idx_vti, eew>;
+      }
+    }
+
+  }
+}
+
 // 12.1. Vector Single-Width Integer Add and Subtract
 defm "" : VPatBinarySDNode_VV_VX_VI<add, "PseudoVADD">;
 defm "" : VPatBinarySDNode_VV_VX<sub, "PseudoVSUB">;
 // Handle VRSUB specially since it's the only integer binary op with reversed
 // pattern operands
 foreach vti = AllIntegerVectors in {
   def : Pat<(sub (vti.Vector (SplatPat XLenVT:$rs2)),
                  (vti.Vector vti.RegClass:$rs1)),

llvm/test/CodeGen/RISCV/rvv/mgather-sdnode.ll

+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -mtriple=riscv32 -mattr=+d,+experimental-zfh,+experimental-v -target-abi=ilp32d \
+; RUN:     -verify-machineinstrs < %s | FileCheck %s --check-prefix=RV32
+; RUN: llc -mtriple=riscv64 -mattr=+d,+experimental-zfh,+experimental-v -target-abi=lp64d \
+; RUN:     -verify-machineinstrs < %s | FileCheck %s --check-prefix=RV64
+
+declare <vscale x 1 x i8> @llvm.masked.gather.nxv1i8.nxv1p0i8(<vscale x 1 x i8*>, i32, <vscale x 1 x i1>, <vscale x 1 x i8>)
+
+define <vscale x 1 x i8> @mgather_nxv1i8(<vscale x 1 x i8*> %ptrs, <vscale x 1 x i1> %m, <vscale x 1 x i8> %passthru) {
+; RV32-LABEL: mgather_nxv1i8:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e8,mf8,tu,mu
+; RV32-NEXT:    vloxei32.v v9, (zero), v8, v0.t
+; RV32-NEXT:    vmv1r.v v8, v9
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv1i8:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e8,mf8,tu,mu
+; RV64-NEXT:    vloxei64.v v9, (zero), v8, v0.t
+; RV64-NEXT:    vmv1r.v v8, v9
+; RV64-NEXT:    ret
+  %v = call <vscale x 1 x i8> @llvm.masked.gather.nxv1i8.nxv1p0i8(<vscale x 1 x i8*> %ptrs, i32 1, <vscale x 1 x i1> %m, <vscale x 1 x i8> %passthru)
+  ret <vscale x 1 x i8> %v
+}
+
+declare <vscale x 2 x i8> @llvm.masked.gather.nxv2i8.nxv2p0i8(<vscale x 2 x i8*>, i32, <vscale x 2 x i1>, <vscale x 2 x i8>)
+
+define <vscale x 2 x i8> @mgather_nxv2i8(<vscale x 2 x i8*> %ptrs, <vscale x 2 x i1> %m, <vscale x 2 x i8> %passthru) {
+; RV32-LABEL: mgather_nxv2i8:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e8,mf4,tu,mu
+; RV32-NEXT:    vloxei32.v v9, (zero), v8, v0.t
+; RV32-NEXT:    vmv1r.v v8, v9
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv2i8:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e8,mf4,tu,mu
+; RV64-NEXT:    vloxei64.v v10, (zero), v8, v0.t
+; RV64-NEXT:    vmv1r.v v8, v10
+; RV64-NEXT:    ret
+  %v = call <vscale x 2 x i8> @llvm.masked.gather.nxv2i8.nxv2p0i8(<vscale x 2 x i8*> %ptrs, i32 1, <vscale x 2 x i1> %m, <vscale x 2 x i8> %passthru)
+  ret <vscale x 2 x i8> %v
+}
+
+declare <vscale x 4 x i8> @llvm.masked.gather.nxv4i8.nxv4p0i8(<vscale x 4 x i8*>, i32, <vscale x 4 x i1>, <vscale x 4 x i8>)
+
+define <vscale x 4 x i8> @mgather_nxv4i8(<vscale x 4 x i8*> %ptrs, <vscale x 4 x i1> %m, <vscale x 4 x i8> %passthru) {
+; RV32-LABEL: mgather_nxv4i8:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e8,mf2,tu,mu
+; RV32-NEXT:    vloxei32.v v10, (zero), v8, v0.t
+; RV32-NEXT:    vmv1r.v v8, v10
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv4i8:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e8,mf2,tu,mu
+; RV64-NEXT:    vloxei64.v v12, (zero), v8, v0.t
+; RV64-NEXT:    vmv1r.v v8, v12
+; RV64-NEXT:    ret
+  %v = call <vscale x 4 x i8> @llvm.masked.gather.nxv4i8.nxv4p0i8(<vscale x 4 x i8*> %ptrs, i32 1, <vscale x 4 x i1> %m, <vscale x 4 x i8> %passthru)
+  ret <vscale x 4 x i8> %v
+}
+
+define <vscale x 4 x i8> @mgather_truemask_nxv4i8(<vscale x 4 x i8*> %ptrs, <vscale x 4 x i8> %passthru) {
+; RV32-LABEL: mgather_truemask_nxv4i8:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e8,mf2,ta,mu
+; RV32-NEXT:    vloxei32.v v8, (zero), v8
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_truemask_nxv4i8:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e8,mf2,ta,mu
+; RV64-NEXT:    vloxei64.v v8, (zero), v8
+; RV64-NEXT:    ret
+  %mhead = insertelement <vscale x 4 x i1> undef, i1 1, i32 0
+  %mtrue = shufflevector <vscale x 4 x i1> %mhead, <vscale x 4 x i1> undef, <vscale x 4 x i32> zeroinitializer
+  %v = call <vscale x 4 x i8> @llvm.masked.gather.nxv4i8.nxv4p0i8(<vscale x 4 x i8*> %ptrs, i32 1, <vscale x 4 x i1> %mtrue, <vscale x 4 x i8> %passthru)
+  ret <vscale x 4 x i8> %v
+}
+
+declare <vscale x 8 x i8> @llvm.masked.gather.nxv8i8.nxv8p0i8(<vscale x 8 x i8*>, i32, <vscale x 8 x i1>, <vscale x 8 x i8>)
+
+define <vscale x 8 x i8> @mgather_nxv8i8(<vscale x 8 x i8*> %ptrs, <vscale x 8 x i1> %m, <vscale x 8 x i8> %passthru) {
+; RV32-LABEL: mgather_nxv8i8:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e8,m1,tu,mu
+; RV32-NEXT:    vloxei32.v v12, (zero), v8, v0.t
+; RV32-NEXT:    vmv1r.v v8, v12
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv8i8:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e8,m1,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (zero), v8, v0.t
+; RV64-NEXT:    vmv1r.v v8, v16
+; RV64-NEXT:    ret
+  %v = call <vscale x 8 x i8> @llvm.masked.gather.nxv8i8.nxv8p0i8(<vscale x 8 x i8*> %ptrs, i32 1, <vscale x 8 x i1> %m, <vscale x 8 x i8> %passthru)
+  ret <vscale x 8 x i8> %v
+}
+
+define <vscale x 8 x i8> @mgather_baseidx_nxv8i8(i8* %base, <vscale x 8 x i8> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x i8> %passthru) {
+; RV32-LABEL: mgather_baseidx_nxv8i8:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf4 v28, v8
+; RV32-NEXT:    vsetvli a1, zero, e8,m1,tu,mu
+; RV32-NEXT:    vloxei32.v v9, (a0), v28, v0.t
+; RV32-NEXT:    vmv1r.v v8, v9
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_nxv8i8:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf8 v16, v8
+; RV64-NEXT:    vsetvli a1, zero, e8,m1,tu,mu
+; RV64-NEXT:    vloxei64.v v9, (a0), v16, v0.t
+; RV64-NEXT:    vmv1r.v v8, v9
+; RV64-NEXT:    ret
+  %ptrs = getelementptr inbounds i8, i8* %base, <vscale x 8 x i8> %idxs
+  %v = call <vscale x 8 x i8> @llvm.masked.gather.nxv8i8.nxv8p0i8(<vscale x 8 x i8*> %ptrs, i32 1, <vscale x 8 x i1> %m, <vscale x 8 x i8> %passthru)
+  ret <vscale x 8 x i8> %v
+}
+
+declare <vscale x 1 x i16> @llvm.masked.gather.nxv1i16.nxv1p0i16(<vscale x 1 x i16*>, i32, <vscale x 1 x i1>, <vscale x 1 x i16>)
+
+define <vscale x 1 x i16> @mgather_nxv1i16(<vscale x 1 x i16*> %ptrs, <vscale x 1 x i1> %m, <vscale x 1 x i16> %passthru) {
+; RV32-LABEL: mgather_nxv1i16:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e16,mf4,tu,mu
+; RV32-NEXT:    vloxei32.v v9, (zero), v8, v0.t
+; RV32-NEXT:    vmv1r.v v8, v9
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv1i16:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e16,mf4,tu,mu
+; RV64-NEXT:    vloxei64.v v9, (zero), v8, v0.t
+; RV64-NEXT:    vmv1r.v v8, v9
+; RV64-NEXT:    ret
+  %v = call <vscale x 1 x i16> @llvm.masked.gather.nxv1i16.nxv1p0i16(<vscale x 1 x i16*> %ptrs, i32 2, <vscale x 1 x i1> %m, <vscale x 1 x i16> %passthru)
+  ret <vscale x 1 x i16> %v
+}
+
+declare <vscale x 2 x i16> @llvm.masked.gather.nxv2i16.nxv2p0i16(<vscale x 2 x i16*>, i32, <vscale x 2 x i1>, <vscale x 2 x i16>)
+
+define <vscale x 2 x i16> @mgather_nxv2i16(<vscale x 2 x i16*> %ptrs, <vscale x 2 x i1> %m, <vscale x 2 x i16> %passthru) {
+; RV32-LABEL: mgather_nxv2i16:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e16,mf2,tu,mu
+; RV32-NEXT:    vloxei32.v v9, (zero), v8, v0.t
+; RV32-NEXT:    vmv1r.v v8, v9
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv2i16:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e16,mf2,tu,mu
+; RV64-NEXT:    vloxei64.v v10, (zero), v8, v0.t
+; RV64-NEXT:    vmv1r.v v8, v10
+; RV64-NEXT:    ret
+  %v = call <vscale x 2 x i16> @llvm.masked.gather.nxv2i16.nxv2p0i16(<vscale x 2 x i16*> %ptrs, i32 2, <vscale x 2 x i1> %m, <vscale x 2 x i16> %passthru)
+  ret <vscale x 2 x i16> %v
+}
+
+declare <vscale x 4 x i16> @llvm.masked.gather.nxv4i16.nxv4p0i16(<vscale x 4 x i16*>, i32, <vscale x 4 x i1>, <vscale x 4 x i16>)
+
+define <vscale x 4 x i16> @mgather_nxv4i16(<vscale x 4 x i16*> %ptrs, <vscale x 4 x i1> %m, <vscale x 4 x i16> %passthru) {
+; RV32-LABEL: mgather_nxv4i16:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e16,m1,tu,mu
+; RV32-NEXT:    vloxei32.v v10, (zero), v8, v0.t
+; RV32-NEXT:    vmv1r.v v8, v10
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv4i16:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e16,m1,tu,mu
+; RV64-NEXT:    vloxei64.v v12, (zero), v8, v0.t
+; RV64-NEXT:    vmv1r.v v8, v12
+; RV64-NEXT:    ret
+  %v = call <vscale x 4 x i16> @llvm.masked.gather.nxv4i16.nxv4p0i16(<vscale x 4 x i16*> %ptrs, i32 2, <vscale x 4 x i1> %m, <vscale x 4 x i16> %passthru)
+  ret <vscale x 4 x i16> %v
+}
+
+define <vscale x 4 x i16> @mgather_truemask_nxv4i16(<vscale x 4 x i16*> %ptrs, <vscale x 4 x i16> %passthru) {
+; RV32-LABEL: mgather_truemask_nxv4i16:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e16,m1,ta,mu
+; RV32-NEXT:    vloxei32.v v8, (zero), v8
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_truemask_nxv4i16:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e16,m1,ta,mu
+; RV64-NEXT:    vloxei64.v v8, (zero), v8
+; RV64-NEXT:    ret
+  %mhead = insertelement <vscale x 4 x i1> undef, i1 1, i32 0
+  %mtrue = shufflevector <vscale x 4 x i1> %mhead, <vscale x 4 x i1> undef, <vscale x 4 x i32> zeroinitializer
+  %v = call <vscale x 4 x i16> @llvm.masked.gather.nxv4i16.nxv4p0i16(<vscale x 4 x i16*> %ptrs, i32 2, <vscale x 4 x i1> %mtrue, <vscale x 4 x i16> %passthru)
+  ret <vscale x 4 x i16> %v
+}
+
+declare <vscale x 8 x i16> @llvm.masked.gather.nxv8i16.nxv8p0i16(<vscale x 8 x i16*>, i32, <vscale x 8 x i1>, <vscale x 8 x i16>)
+
+define <vscale x 8 x i16> @mgather_nxv8i16(<vscale x 8 x i16*> %ptrs, <vscale x 8 x i1> %m, <vscale x 8 x i16> %passthru) {
+; RV32-LABEL: mgather_nxv8i16:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e16,m2,tu,mu
+; RV32-NEXT:    vloxei32.v v12, (zero), v8, v0.t
+; RV32-NEXT:    vmv2r.v v8, v12
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv8i16:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e16,m2,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (zero), v8, v0.t
+; RV64-NEXT:    vmv2r.v v8, v16
+; RV64-NEXT:    ret
+  %v = call <vscale x 8 x i16> @llvm.masked.gather.nxv8i16.nxv8p0i16(<vscale x 8 x i16*> %ptrs, i32 2, <vscale x 8 x i1> %m, <vscale x 8 x i16> %passthru)
+  ret <vscale x 8 x i16> %v
+}
+
+define <vscale x 8 x i16> @mgather_baseidx_nxv8i8_nxv8i16(i16* %base, <vscale x 8 x i8> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x i16> %passthru) {
+; RV32-LABEL: mgather_baseidx_nxv8i8_nxv8i16:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf4 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 1
+; RV32-NEXT:    vsetvli a1, zero, e16,m2,tu,mu
+; RV32-NEXT:    vloxei32.v v10, (a0), v28, v0.t
+; RV32-NEXT:    vmv2r.v v8, v10
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_nxv8i8_nxv8i16:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf8 v16, v8
+; RV64-NEXT:    vsll.vi v16, v16, 1
+; RV64-NEXT:    vsetvli a1, zero, e16,m2,tu,mu
+; RV64-NEXT:    vloxei64.v v10, (a0), v16, v0.t
+; RV64-NEXT:    vmv2r.v v8, v10
+; RV64-NEXT:    ret
+  %ptrs = getelementptr inbounds i16, i16* %base, <vscale x 8 x i8> %idxs
+  %v = call <vscale x 8 x i16> @llvm.masked.gather.nxv8i16.nxv8p0i16(<vscale x 8 x i16*> %ptrs, i32 2, <vscale x 8 x i1> %m, <vscale x 8 x i16> %passthru)
+  ret <vscale x 8 x i16> %v
+}
+
+define <vscale x 8 x i16> @mgather_baseidx_sext_nxv8i8_nxv8i16(i16* %base, <vscale x 8 x i8> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x i16> %passthru) {
+; RV32-LABEL: mgather_baseidx_sext_nxv8i8_nxv8i16:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf4 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 1
+; RV32-NEXT:    vsetvli a1, zero, e16,m2,tu,mu
+; RV32-NEXT:    vloxei32.v v10, (a0), v28, v0.t
+; RV32-NEXT:    vmv2r.v v8, v10
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_sext_nxv8i8_nxv8i16:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf8 v16, v8
+; RV64-NEXT:    vsll.vi v16, v16, 1
+; RV64-NEXT:    vsetvli a1, zero, e16,m2,tu,mu
+; RV64-NEXT:    vloxei64.v v10, (a0), v16, v0.t
+; RV64-NEXT:    vmv2r.v v8, v10
+; RV64-NEXT:    ret
+  %eidxs = sext <vscale x 8 x i8> %idxs to <vscale x 8 x i16>
+  %ptrs = getelementptr inbounds i16, i16* %base, <vscale x 8 x i16> %eidxs
+  %v = call <vscale x 8 x i16> @llvm.masked.gather.nxv8i16.nxv8p0i16(<vscale x 8 x i16*> %ptrs, i32 2, <vscale x 8 x i1> %m, <vscale x 8 x i16> %passthru)
+  ret <vscale x 8 x i16> %v
+}
+
+define <vscale x 8 x i16> @mgather_baseidx_zext_nxv8i8_nxv8i16(i16* %base, <vscale x 8 x i8> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x i16> %passthru) {
+; RV32-LABEL: mgather_baseidx_zext_nxv8i8_nxv8i16:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vzext.vf4 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 1
+; RV32-NEXT:    vsetvli a1, zero, e16,m2,tu,mu
+; RV32-NEXT:    vloxei32.v v10, (a0), v28, v0.t
+; RV32-NEXT:    vmv2r.v v8, v10
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_zext_nxv8i8_nxv8i16:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vzext.vf8 v16, v8
+; RV64-NEXT:    vsll.vi v16, v16, 1
+; RV64-NEXT:    vsetvli a1, zero, e16,m2,tu,mu
+; RV64-NEXT:    vloxei64.v v10, (a0), v16, v0.t
+; RV64-NEXT:    vmv2r.v v8, v10
+; RV64-NEXT:    ret
+  %eidxs = zext <vscale x 8 x i8> %idxs to <vscale x 8 x i16>
+  %ptrs = getelementptr inbounds i16, i16* %base, <vscale x 8 x i16> %eidxs
+  %v = call <vscale x 8 x i16> @llvm.masked.gather.nxv8i16.nxv8p0i16(<vscale x 8 x i16*> %ptrs, i32 2, <vscale x 8 x i1> %m, <vscale x 8 x i16> %passthru)
+  ret <vscale x 8 x i16> %v
+}
+
+define <vscale x 8 x i16> @mgather_baseidx_nxv8i16(i16* %base, <vscale x 8 x i16> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x i16> %passthru) {
+; RV32-LABEL: mgather_baseidx_nxv8i16:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf2 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 1
+; RV32-NEXT:    vsetvli a1, zero, e16,m2,tu,mu
+; RV32-NEXT:    vloxei32.v v10, (a0), v28, v0.t
+; RV32-NEXT:    vmv2r.v v8, v10
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_nxv8i16:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf4 v16, v8
+; RV64-NEXT:    vsll.vi v16, v16, 1
+; RV64-NEXT:    vsetvli a1, zero, e16,m2,tu,mu
+; RV64-NEXT:    vloxei64.v v10, (a0), v16, v0.t
+; RV64-NEXT:    vmv2r.v v8, v10
+; RV64-NEXT:    ret
+  %ptrs = getelementptr inbounds i16, i16* %base, <vscale x 8 x i16> %idxs
+  %v = call <vscale x 8 x i16> @llvm.masked.gather.nxv8i16.nxv8p0i16(<vscale x 8 x i16*> %ptrs, i32 2, <vscale x 8 x i1> %m, <vscale x 8 x i16> %passthru)
+  ret <vscale x 8 x i16> %v
+}
+
+declare <vscale x 1 x i32> @llvm.masked.gather.nxv1i32.nxv1p0i32(<vscale x 1 x i32*>, i32, <vscale x 1 x i1>, <vscale x 1 x i32>)
+
+define <vscale x 1 x i32> @mgather_nxv1i32(<vscale x 1 x i32*> %ptrs, <vscale x 1 x i1> %m, <vscale x 1 x i32> %passthru) {
+; RV32-LABEL: mgather_nxv1i32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e32,mf2,tu,mu
+; RV32-NEXT:    vloxei32.v v9, (zero), v8, v0.t
+; RV32-NEXT:    vmv1r.v v8, v9
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv1i32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e32,mf2,tu,mu
+; RV64-NEXT:    vloxei64.v v9, (zero), v8, v0.t
+; RV64-NEXT:    vmv1r.v v8, v9
+; RV64-NEXT:    ret
+  %v = call <vscale x 1 x i32> @llvm.masked.gather.nxv1i32.nxv1p0i32(<vscale x 1 x i32*> %ptrs, i32 4, <vscale x 1 x i1> %m, <vscale x 1 x i32> %passthru)
+  ret <vscale x 1 x i32> %v
+}
+
+declare <vscale x 2 x i32> @llvm.masked.gather.nxv2i32.nxv2p0i32(<vscale x 2 x i32*>, i32, <vscale x 2 x i1>, <vscale x 2 x i32>)
+
+define <vscale x 2 x i32> @mgather_nxv2i32(<vscale x 2 x i32*> %ptrs, <vscale x 2 x i1> %m, <vscale x 2 x i32> %passthru) {
+; RV32-LABEL: mgather_nxv2i32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e32,m1,tu,mu
+; RV32-NEXT:    vloxei32.v v9, (zero), v8, v0.t
+; RV32-NEXT:    vmv1r.v v8, v9
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv2i32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e32,m1,tu,mu
+; RV64-NEXT:    vloxei64.v v10, (zero), v8, v0.t
+; RV64-NEXT:    vmv1r.v v8, v10
+; RV64-NEXT:    ret
+  %v = call <vscale x 2 x i32> @llvm.masked.gather.nxv2i32.nxv2p0i32(<vscale x 2 x i32*> %ptrs, i32 4, <vscale x 2 x i1> %m, <vscale x 2 x i32> %passthru)
+  ret <vscale x 2 x i32> %v
+}
+
+declare <vscale x 4 x i32> @llvm.masked.gather.nxv4i32.nxv4p0i32(<vscale x 4 x i32*>, i32, <vscale x 4 x i1>, <vscale x 4 x i32>)
+
+define <vscale x 4 x i32> @mgather_nxv4i32(<vscale x 4 x i32*> %ptrs, <vscale x 4 x i1> %m, <vscale x 4 x i32> %passthru) {
+; RV32-LABEL: mgather_nxv4i32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e32,m2,tu,mu
+; RV32-NEXT:    vloxei32.v v10, (zero), v8, v0.t
+; RV32-NEXT:    vmv2r.v v8, v10
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv4i32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e32,m2,tu,mu
+; RV64-NEXT:    vloxei64.v v12, (zero), v8, v0.t
+; RV64-NEXT:    vmv2r.v v8, v12
+; RV64-NEXT:    ret
+  %v = call <vscale x 4 x i32> @llvm.masked.gather.nxv4i32.nxv4p0i32(<vscale x 4 x i32*> %ptrs, i32 4, <vscale x 4 x i1> %m, <vscale x 4 x i32> %passthru)
+  ret <vscale x 4 x i32> %v
+}
+
+define <vscale x 4 x i32> @mgather_truemask_nxv4i32(<vscale x 4 x i32*> %ptrs, <vscale x 4 x i32> %passthru) {
+; RV32-LABEL: mgather_truemask_nxv4i32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e32,m2,ta,mu
+; RV32-NEXT:    vloxei32.v v8, (zero), v8
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_truemask_nxv4i32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e32,m2,ta,mu
+; RV64-NEXT:    vloxei64.v v8, (zero), v8
+; RV64-NEXT:    ret
+  %mhead = insertelement <vscale x 4 x i1> undef, i1 1, i32 0
+  %mtrue = shufflevector <vscale x 4 x i1> %mhead, <vscale x 4 x i1> undef, <vscale x 4 x i32> zeroinitializer
+  %v = call <vscale x 4 x i32> @llvm.masked.gather.nxv4i32.nxv4p0i32(<vscale x 4 x i32*> %ptrs, i32 4, <vscale x 4 x i1> %mtrue, <vscale x 4 x i32> %passthru)
+  ret <vscale x 4 x i32> %v
+}
+
+declare <vscale x 8 x i32> @llvm.masked.gather.nxv8i32.nxv8p0i32(<vscale x 8 x i32*>, i32, <vscale x 8 x i1>, <vscale x 8 x i32>)
+
+define <vscale x 8 x i32> @mgather_nxv8i32(<vscale x 8 x i32*> %ptrs, <vscale x 8 x i1> %m, <vscale x 8 x i32> %passthru) {
+; RV32-LABEL: mgather_nxv8i32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e32,m4,tu,mu
+; RV32-NEXT:    vloxei32.v v12, (zero), v8, v0.t
+; RV32-NEXT:    vmv4r.v v8, v12
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv8i32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e32,m4,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (zero), v8, v0.t
+; RV64-NEXT:    vmv4r.v v8, v16
+; RV64-NEXT:    ret
+  %v = call <vscale x 8 x i32> @llvm.masked.gather.nxv8i32.nxv8p0i32(<vscale x 8 x i32*> %ptrs, i32 4, <vscale x 8 x i1> %m, <vscale x 8 x i32> %passthru)
+  ret <vscale x 8 x i32> %v
+}
+
+define <vscale x 8 x i32> @mgather_baseidx_nxv8i8_nxv8i32(i32* %base, <vscale x 8 x i8> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x i32> %passthru) {
+; RV32-LABEL: mgather_baseidx_nxv8i8_nxv8i32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf4 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 2
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV32-NEXT:    vloxei32.v v12, (a0), v28, v0.t
+; RV32-NEXT:    vmv4r.v v8, v12
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_nxv8i8_nxv8i32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf8 v16, v8
+; RV64-NEXT:    vsll.vi v16, v16, 2
+; RV64-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV64-NEXT:    vloxei64.v v12, (a0), v16, v0.t
+; RV64-NEXT:    vmv4r.v v8, v12
+; RV64-NEXT:    ret
+  %ptrs = getelementptr inbounds i32, i32* %base, <vscale x 8 x i8> %idxs
+  %v = call <vscale x 8 x i32> @llvm.masked.gather.nxv8i32.nxv8p0i32(<vscale x 8 x i32*> %ptrs, i32 4, <vscale x 8 x i1> %m, <vscale x 8 x i32> %passthru)
+  ret <vscale x 8 x i32> %v
+}
+
+define <vscale x 8 x i32> @mgather_baseidx_sext_nxv8i8_nxv8i32(i32* %base, <vscale x 8 x i8> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x i32> %passthru) {
+; RV32-LABEL: mgather_baseidx_sext_nxv8i8_nxv8i32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf4 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 2
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV32-NEXT:    vloxei32.v v12, (a0), v28, v0.t
+; RV32-NEXT:    vmv4r.v v8, v12
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_sext_nxv8i8_nxv8i32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf8 v16, v8
+; RV64-NEXT:    vsll.vi v16, v16, 2
+; RV64-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV64-NEXT:    vloxei64.v v12, (a0), v16, v0.t
+; RV64-NEXT:    vmv4r.v v8, v12
+; RV64-NEXT:    ret
+  %eidxs = sext <vscale x 8 x i8> %idxs to <vscale x 8 x i32>
+  %ptrs = getelementptr inbounds i32, i32* %base, <vscale x 8 x i32> %eidxs
+  %v = call <vscale x 8 x i32> @llvm.masked.gather.nxv8i32.nxv8p0i32(<vscale x 8 x i32*> %ptrs, i32 4, <vscale x 8 x i1> %m, <vscale x 8 x i32> %passthru)
+  ret <vscale x 8 x i32> %v
+}
+
+define <vscale x 8 x i32> @mgather_baseidx_zext_nxv8i8_nxv8i32(i32* %base, <vscale x 8 x i8> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x i32> %passthru) {
+; RV32-LABEL: mgather_baseidx_zext_nxv8i8_nxv8i32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vzext.vf4 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 2
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV32-NEXT:    vloxei32.v v12, (a0), v28, v0.t
+; RV32-NEXT:    vmv4r.v v8, v12
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_zext_nxv8i8_nxv8i32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vzext.vf8 v16, v8
+; RV64-NEXT:    vsll.vi v16, v16, 2
+; RV64-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV64-NEXT:    vloxei64.v v12, (a0), v16, v0.t
+; RV64-NEXT:    vmv4r.v v8, v12
+; RV64-NEXT:    ret
+  %eidxs = zext <vscale x 8 x i8> %idxs to <vscale x 8 x i32>
+  %ptrs = getelementptr inbounds i32, i32* %base, <vscale x 8 x i32> %eidxs
+  %v = call <vscale x 8 x i32> @llvm.masked.gather.nxv8i32.nxv8p0i32(<vscale x 8 x i32*> %ptrs, i32 4, <vscale x 8 x i1> %m, <vscale x 8 x i32> %passthru)
+  ret <vscale x 8 x i32> %v
+}
+
+define <vscale x 8 x i32> @mgather_baseidx_nxv8i16_nxv8i32(i32* %base, <vscale x 8 x i16> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x i32> %passthru) {
+; RV32-LABEL: mgather_baseidx_nxv8i16_nxv8i32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf2 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 2
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV32-NEXT:    vloxei32.v v12, (a0), v28, v0.t
+; RV32-NEXT:    vmv4r.v v8, v12
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_nxv8i16_nxv8i32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf4 v16, v8
+; RV64-NEXT:    vsll.vi v16, v16, 2
+; RV64-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV64-NEXT:    vloxei64.v v12, (a0), v16, v0.t
+; RV64-NEXT:    vmv4r.v v8, v12
+; RV64-NEXT:    ret
+  %ptrs = getelementptr inbounds i32, i32* %base, <vscale x 8 x i16> %idxs
+  %v = call <vscale x 8 x i32> @llvm.masked.gather.nxv8i32.nxv8p0i32(<vscale x 8 x i32*> %ptrs, i32 4, <vscale x 8 x i1> %m, <vscale x 8 x i32> %passthru)
+  ret <vscale x 8 x i32> %v
+}
+
+define <vscale x 8 x i32> @mgather_baseidx_sext_nxv8i16_nxv8i32(i32* %base, <vscale x 8 x i16> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x i32> %passthru) {
+; RV32-LABEL: mgather_baseidx_sext_nxv8i16_nxv8i32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf2 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 2
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV32-NEXT:    vloxei32.v v12, (a0), v28, v0.t
+; RV32-NEXT:    vmv4r.v v8, v12
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_sext_nxv8i16_nxv8i32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf4 v16, v8
+; RV64-NEXT:    vsll.vi v16, v16, 2
+; RV64-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV64-NEXT:    vloxei64.v v12, (a0), v16, v0.t
+; RV64-NEXT:    vmv4r.v v8, v12
+; RV64-NEXT:    ret
+  %eidxs = sext <vscale x 8 x i16> %idxs to <vscale x 8 x i32>
+  %ptrs = getelementptr inbounds i32, i32* %base, <vscale x 8 x i32> %eidxs
+  %v = call <vscale x 8 x i32> @llvm.masked.gather.nxv8i32.nxv8p0i32(<vscale x 8 x i32*> %ptrs, i32 4, <vscale x 8 x i1> %m, <vscale x 8 x i32> %passthru)
+  ret <vscale x 8 x i32> %v
+}
+
+define <vscale x 8 x i32> @mgather_baseidx_zext_nxv8i16_nxv8i32(i32* %base, <vscale x 8 x i16> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x i32> %passthru) {
+; RV32-LABEL: mgather_baseidx_zext_nxv8i16_nxv8i32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vzext.vf2 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 2
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV32-NEXT:    vloxei32.v v12, (a0), v28, v0.t
+; RV32-NEXT:    vmv4r.v v8, v12
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_zext_nxv8i16_nxv8i32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vzext.vf4 v16, v8
+; RV64-NEXT:    vsll.vi v16, v16, 2
+; RV64-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV64-NEXT:    vloxei64.v v12, (a0), v16, v0.t
+; RV64-NEXT:    vmv4r.v v8, v12
+; RV64-NEXT:    ret
+  %eidxs = zext <vscale x 8 x i16> %idxs to <vscale x 8 x i32>
+  %ptrs = getelementptr inbounds i32, i32* %base, <vscale x 8 x i32> %eidxs
+  %v = call <vscale x 8 x i32> @llvm.masked.gather.nxv8i32.nxv8p0i32(<vscale x 8 x i32*> %ptrs, i32 4, <vscale x 8 x i1> %m, <vscale x 8 x i32> %passthru)
+  ret <vscale x 8 x i32> %v
+}
+
+define <vscale x 8 x i32> @mgather_baseidx_nxv8i32(i32* %base, <vscale x 8 x i32> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x i32> %passthru) {
+; RV32-LABEL: mgather_baseidx_nxv8i32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsll.vi v28, v8, 2
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV32-NEXT:    vloxei32.v v12, (a0), v28, v0.t
+; RV32-NEXT:    vmv4r.v v8, v12
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_nxv8i32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf2 v16, v8
+; RV64-NEXT:    vsll.vi v16, v16, 2
+; RV64-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV64-NEXT:    vloxei64.v v12, (a0), v16, v0.t
+; RV64-NEXT:    vmv4r.v v8, v12
+; RV64-NEXT:    ret
+  %ptrs = getelementptr inbounds i32, i32* %base, <vscale x 8 x i32> %idxs
+  %v = call <vscale x 8 x i32> @llvm.masked.gather.nxv8i32.nxv8p0i32(<vscale x 8 x i32*> %ptrs, i32 4, <vscale x 8 x i1> %m, <vscale x 8 x i32> %passthru)
+  ret <vscale x 8 x i32> %v
+}
+
+declare <vscale x 1 x i64> @llvm.masked.gather.nxv1i64.nxv1p0i64(<vscale x 1 x i64*>, i32, <vscale x 1 x i1>, <vscale x 1 x i64>)
+
+define <vscale x 1 x i64> @mgather_nxv1i64(<vscale x 1 x i64*> %ptrs, <vscale x 1 x i1> %m, <vscale x 1 x i64> %passthru) {
+; RV32-LABEL: mgather_nxv1i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e64,m1,tu,mu
+; RV32-NEXT:    vloxei32.v v9, (zero), v8, v0.t
+; RV32-NEXT:    vmv1r.v v8, v9
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv1i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e64,m1,tu,mu
+; RV64-NEXT:    vloxei64.v v9, (zero), v8, v0.t
+; RV64-NEXT:    vmv1r.v v8, v9
+; RV64-NEXT:    ret
+  %v = call <vscale x 1 x i64> @llvm.masked.gather.nxv1i64.nxv1p0i64(<vscale x 1 x i64*> %ptrs, i32 8, <vscale x 1 x i1> %m, <vscale x 1 x i64> %passthru)
+  ret <vscale x 1 x i64> %v
+}
+
+declare <vscale x 2 x i64> @llvm.masked.gather.nxv2i64.nxv2p0i64(<vscale x 2 x i64*>, i32, <vscale x 2 x i1>, <vscale x 2 x i64>)
+
+define <vscale x 2 x i64> @mgather_nxv2i64(<vscale x 2 x i64*> %ptrs, <vscale x 2 x i1> %m, <vscale x 2 x i64> %passthru) {
+; RV32-LABEL: mgather_nxv2i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e64,m2,tu,mu
+; RV32-NEXT:    vloxei32.v v10, (zero), v8, v0.t
+; RV32-NEXT:    vmv2r.v v8, v10
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv2i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e64,m2,tu,mu
+; RV64-NEXT:    vloxei64.v v10, (zero), v8, v0.t
+; RV64-NEXT:    vmv2r.v v8, v10
+; RV64-NEXT:    ret
+  %v = call <vscale x 2 x i64> @llvm.masked.gather.nxv2i64.nxv2p0i64(<vscale x 2 x i64*> %ptrs, i32 8, <vscale x 2 x i1> %m, <vscale x 2 x i64> %passthru)
+  ret <vscale x 2 x i64> %v
+}
+
+declare <vscale x 4 x i64> @llvm.masked.gather.nxv4i64.nxv4p0i64(<vscale x 4 x i64*>, i32, <vscale x 4 x i1>, <vscale x 4 x i64>)
+
+define <vscale x 4 x i64> @mgather_nxv4i64(<vscale x 4 x i64*> %ptrs, <vscale x 4 x i1> %m, <vscale x 4 x i64> %passthru) {
+; RV32-LABEL: mgather_nxv4i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e64,m4,tu,mu
+; RV32-NEXT:    vloxei32.v v12, (zero), v8, v0.t
+; RV32-NEXT:    vmv4r.v v8, v12
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv4i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e64,m4,tu,mu
+; RV64-NEXT:    vloxei64.v v12, (zero), v8, v0.t
+; RV64-NEXT:    vmv4r.v v8, v12
+; RV64-NEXT:    ret
+  %v = call <vscale x 4 x i64> @llvm.masked.gather.nxv4i64.nxv4p0i64(<vscale x 4 x i64*> %ptrs, i32 8, <vscale x 4 x i1> %m, <vscale x 4 x i64> %passthru)
+  ret <vscale x 4 x i64> %v
+}
+
+define <vscale x 4 x i64> @mgather_truemask_nxv4i64(<vscale x 4 x i64*> %ptrs, <vscale x 4 x i64> %passthru) {
+; RV32-LABEL: mgather_truemask_nxv4i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e64,m4,ta,mu
+; RV32-NEXT:    vloxei32.v v8, (zero), v8
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_truemask_nxv4i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e64,m4,ta,mu
+; RV64-NEXT:    vloxei64.v v8, (zero), v8
+; RV64-NEXT:    ret
+  %mhead = insertelement <vscale x 4 x i1> undef, i1 1, i32 0
+  %mtrue = shufflevector <vscale x 4 x i1> %mhead, <vscale x 4 x i1> undef, <vscale x 4 x i32> zeroinitializer
+  %v = call <vscale x 4 x i64> @llvm.masked.gather.nxv4i64.nxv4p0i64(<vscale x 4 x i64*> %ptrs, i32 8, <vscale x 4 x i1> %mtrue, <vscale x 4 x i64> %passthru)
+  ret <vscale x 4 x i64> %v
+}
+
+declare <vscale x 8 x i64> @llvm.masked.gather.nxv8i64.nxv8p0i64(<vscale x 8 x i64*>, i32, <vscale x 8 x i1>, <vscale x 8 x i64>)
+
+define <vscale x 8 x i64> @mgather_nxv8i64(<vscale x 8 x i64*> %ptrs, <vscale x 8 x i1> %m, <vscale x 8 x i64> %passthru) {
+; RV32-LABEL: mgather_nxv8i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e64,m8,tu,mu
+; RV32-NEXT:    vloxei32.v v16, (zero), v8, v0.t
+; RV32-NEXT:    vmv8r.v v8, v16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv8i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e64,m8,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (zero), v8, v0.t
+; RV64-NEXT:    vmv8r.v v8, v16
+; RV64-NEXT:    ret
+  %v = call <vscale x 8 x i64> @llvm.masked.gather.nxv8i64.nxv8p0i64(<vscale x 8 x i64*> %ptrs, i32 8, <vscale x 8 x i1> %m, <vscale x 8 x i64> %passthru)
+  ret <vscale x 8 x i64> %v
+}
+
+define <vscale x 8 x i64> @mgather_baseidx_nxv8i8_nxv8i64(i64* %base, <vscale x 8 x i8> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x i64> %passthru) {
+; RV32-LABEL: mgather_baseidx_nxv8i8_nxv8i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf4 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 3
+; RV32-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV32-NEXT:    vloxei32.v v16, (a0), v28, v0.t
+; RV32-NEXT:    vmv8r.v v8, v16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_nxv8i8_nxv8i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf8 v24, v8
+; RV64-NEXT:    vsll.vi v8, v24, 3
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (a0), v8, v0.t
+; RV64-NEXT:    vmv8r.v v8, v16
+; RV64-NEXT:    ret
+  %ptrs = getelementptr inbounds i64, i64* %base, <vscale x 8 x i8> %idxs
+  %v = call <vscale x 8 x i64> @llvm.masked.gather.nxv8i64.nxv8p0i64(<vscale x 8 x i64*> %ptrs, i32 8, <vscale x 8 x i1> %m, <vscale x 8 x i64> %passthru)
+  ret <vscale x 8 x i64> %v
+}
+
+define <vscale x 8 x i64> @mgather_baseidx_sext_nxv8i8_nxv8i64(i64* %base, <vscale x 8 x i8> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x i64> %passthru) {
+; RV32-LABEL: mgather_baseidx_sext_nxv8i8_nxv8i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf4 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 3
+; RV32-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV32-NEXT:    vloxei32.v v16, (a0), v28, v0.t
+; RV32-NEXT:    vmv8r.v v8, v16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_sext_nxv8i8_nxv8i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf8 v24, v8
+; RV64-NEXT:    vsll.vi v8, v24, 3
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (a0), v8, v0.t
+; RV64-NEXT:    vmv8r.v v8, v16
+; RV64-NEXT:    ret
+  %eidxs = sext <vscale x 8 x i8> %idxs to <vscale x 8 x i64>
+  %ptrs = getelementptr inbounds i64, i64* %base, <vscale x 8 x i64> %eidxs
+  %v = call <vscale x 8 x i64> @llvm.masked.gather.nxv8i64.nxv8p0i64(<vscale x 8 x i64*> %ptrs, i32 8, <vscale x 8 x i1> %m, <vscale x 8 x i64> %passthru)
+  ret <vscale x 8 x i64> %v
+}
+
+define <vscale x 8 x i64> @mgather_baseidx_zext_nxv8i8_nxv8i64(i64* %base, <vscale x 8 x i8> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x i64> %passthru) {
+; RV32-LABEL: mgather_baseidx_zext_nxv8i8_nxv8i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vzext.vf4 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 3
+; RV32-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV32-NEXT:    vloxei32.v v16, (a0), v28, v0.t
+; RV32-NEXT:    vmv8r.v v8, v16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_zext_nxv8i8_nxv8i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vzext.vf8 v24, v8
+; RV64-NEXT:    vsll.vi v8, v24, 3
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (a0), v8, v0.t
+; RV64-NEXT:    vmv8r.v v8, v16
+; RV64-NEXT:    ret
+  %eidxs = zext <vscale x 8 x i8> %idxs to <vscale x 8 x i64>
+  %ptrs = getelementptr inbounds i64, i64* %base, <vscale x 8 x i64> %eidxs
+  %v = call <vscale x 8 x i64> @llvm.masked.gather.nxv8i64.nxv8p0i64(<vscale x 8 x i64*> %ptrs, i32 8, <vscale x 8 x i1> %m, <vscale x 8 x i64> %passthru)
+  ret <vscale x 8 x i64> %v
+}
+
+define <vscale x 8 x i64> @mgather_baseidx_nxv8i16_nxv8i64(i64* %base, <vscale x 8 x i16> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x i64> %passthru) {
+; RV32-LABEL: mgather_baseidx_nxv8i16_nxv8i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf2 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 3
+; RV32-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV32-NEXT:    vloxei32.v v16, (a0), v28, v0.t
+; RV32-NEXT:    vmv8r.v v8, v16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_nxv8i16_nxv8i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf4 v24, v8
+; RV64-NEXT:    vsll.vi v8, v24, 3
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (a0), v8, v0.t
+; RV64-NEXT:    vmv8r.v v8, v16
+; RV64-NEXT:    ret
+  %ptrs = getelementptr inbounds i64, i64* %base, <vscale x 8 x i16> %idxs
+  %v = call <vscale x 8 x i64> @llvm.masked.gather.nxv8i64.nxv8p0i64(<vscale x 8 x i64*> %ptrs, i32 8, <vscale x 8 x i1> %m, <vscale x 8 x i64> %passthru)
+  ret <vscale x 8 x i64> %v
+}
+
+define <vscale x 8 x i64> @mgather_baseidx_sext_nxv8i16_nxv8i64(i64* %base, <vscale x 8 x i16> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x i64> %passthru) {
+; RV32-LABEL: mgather_baseidx_sext_nxv8i16_nxv8i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf2 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 3
+; RV32-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV32-NEXT:    vloxei32.v v16, (a0), v28, v0.t
+; RV32-NEXT:    vmv8r.v v8, v16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_sext_nxv8i16_nxv8i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf4 v24, v8
+; RV64-NEXT:    vsll.vi v8, v24, 3
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (a0), v8, v0.t
+; RV64-NEXT:    vmv8r.v v8, v16
+; RV64-NEXT:    ret
+  %eidxs = sext <vscale x 8 x i16> %idxs to <vscale x 8 x i64>
+  %ptrs = getelementptr inbounds i64, i64* %base, <vscale x 8 x i64> %eidxs
+  %v = call <vscale x 8 x i64> @llvm.masked.gather.nxv8i64.nxv8p0i64(<vscale x 8 x i64*> %ptrs, i32 8, <vscale x 8 x i1> %m, <vscale x 8 x i64> %passthru)
+  ret <vscale x 8 x i64> %v
+}
+
+define <vscale x 8 x i64> @mgather_baseidx_zext_nxv8i16_nxv8i64(i64* %base, <vscale x 8 x i16> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x i64> %passthru) {
+; RV32-LABEL: mgather_baseidx_zext_nxv8i16_nxv8i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vzext.vf2 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 3
+; RV32-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV32-NEXT:    vloxei32.v v16, (a0), v28, v0.t
+; RV32-NEXT:    vmv8r.v v8, v16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_zext_nxv8i16_nxv8i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vzext.vf4 v24, v8
+; RV64-NEXT:    vsll.vi v8, v24, 3
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (a0), v8, v0.t
+; RV64-NEXT:    vmv8r.v v8, v16
+; RV64-NEXT:    ret
+  %eidxs = zext <vscale x 8 x i16> %idxs to <vscale x 8 x i64>
+  %ptrs = getelementptr inbounds i64, i64* %base, <vscale x 8 x i64> %eidxs
+  %v = call <vscale x 8 x i64> @llvm.masked.gather.nxv8i64.nxv8p0i64(<vscale x 8 x i64*> %ptrs, i32 8, <vscale x 8 x i1> %m, <vscale x 8 x i64> %passthru)
+  ret <vscale x 8 x i64> %v
+}
+
+define <vscale x 8 x i64> @mgather_baseidx_nxv8i32_nxv8i64(i64* %base, <vscale x 8 x i32> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x i64> %passthru) {
+; RV32-LABEL: mgather_baseidx_nxv8i32_nxv8i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsll.vi v28, v8, 3
+; RV32-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV32-NEXT:    vloxei32.v v16, (a0), v28, v0.t
+; RV32-NEXT:    vmv8r.v v8, v16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_nxv8i32_nxv8i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf2 v24, v8
+; RV64-NEXT:    vsll.vi v8, v24, 3
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (a0), v8, v0.t
+; RV64-NEXT:    vmv8r.v v8, v16
+; RV64-NEXT:    ret
+  %ptrs = getelementptr inbounds i64, i64* %base, <vscale x 8 x i32> %idxs
+  %v = call <vscale x 8 x i64> @llvm.masked.gather.nxv8i64.nxv8p0i64(<vscale x 8 x i64*> %ptrs, i32 8, <vscale x 8 x i1> %m, <vscale x 8 x i64> %passthru)
+  ret <vscale x 8 x i64> %v
+}
+
+define <vscale x 8 x i64> @mgather_baseidx_sext_nxv8i32_nxv8i64(i64* %base, <vscale x 8 x i32> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x i64> %passthru) {
+; RV32-LABEL: mgather_baseidx_sext_nxv8i32_nxv8i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsll.vi v28, v8, 3
+; RV32-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV32-NEXT:    vloxei32.v v16, (a0), v28, v0.t
+; RV32-NEXT:    vmv8r.v v8, v16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_sext_nxv8i32_nxv8i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf2 v24, v8
+; RV64-NEXT:    vsll.vi v8, v24, 3
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (a0), v8, v0.t
+; RV64-NEXT:    vmv8r.v v8, v16
+; RV64-NEXT:    ret
+  %eidxs = sext <vscale x 8 x i32> %idxs to <vscale x 8 x i64>
+  %ptrs = getelementptr inbounds i64, i64* %base, <vscale x 8 x i64> %eidxs
+  %v = call <vscale x 8 x i64> @llvm.masked.gather.nxv8i64.nxv8p0i64(<vscale x 8 x i64*> %ptrs, i32 8, <vscale x 8 x i1> %m, <vscale x 8 x i64> %passthru)
+  ret <vscale x 8 x i64> %v
+}
+
+define <vscale x 8 x i64> @mgather_baseidx_zext_nxv8i32_nxv8i64(i64* %base, <vscale x 8 x i32> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x i64> %passthru) {
+; RV32-LABEL: mgather_baseidx_zext_nxv8i32_nxv8i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsll.vi v28, v8, 3
+; RV32-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV32-NEXT:    vloxei32.v v16, (a0), v28, v0.t
+; RV32-NEXT:    vmv8r.v v8, v16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_zext_nxv8i32_nxv8i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vzext.vf2 v24, v8
+; RV64-NEXT:    vsll.vi v8, v24, 3
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (a0), v8, v0.t
+; RV64-NEXT:    vmv8r.v v8, v16
+; RV64-NEXT:    ret
+  %eidxs = zext <vscale x 8 x i32> %idxs to <vscale x 8 x i64>
+  %ptrs = getelementptr inbounds i64, i64* %base, <vscale x 8 x i64> %eidxs
+  %v = call <vscale x 8 x i64> @llvm.masked.gather.nxv8i64.nxv8p0i64(<vscale x 8 x i64*> %ptrs, i32 8, <vscale x 8 x i1> %m, <vscale x 8 x i64> %passthru)
+  ret <vscale x 8 x i64> %v
+}
+
+define <vscale x 8 x i64> @mgather_baseidx_nxv8i64(i64* %base, <vscale x 8 x i64> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x i64> %passthru) {
+; RV32-LABEL: mgather_baseidx_nxv8i64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV32-NEXT:    vsll.vi v8, v8, 3
+; RV32-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV32-NEXT:    vloxei64.v v16, (a0), v8, v0.t
+; RV32-NEXT:    vmv8r.v v8, v16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_nxv8i64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsll.vi v8, v8, 3
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (a0), v8, v0.t
+; RV64-NEXT:    vmv8r.v v8, v16
+; RV64-NEXT:    ret
+  %ptrs = getelementptr inbounds i64, i64* %base, <vscale x 8 x i64> %idxs
+  %v = call <vscale x 8 x i64> @llvm.masked.gather.nxv8i64.nxv8p0i64(<vscale x 8 x i64*> %ptrs, i32 8, <vscale x 8 x i1> %m, <vscale x 8 x i64> %passthru)
+  ret <vscale x 8 x i64> %v
+}
+
+declare <vscale x 1 x half> @llvm.masked.gather.nxv1f16.nxv1p0f16(<vscale x 1 x half*>, i32, <vscale x 1 x i1>, <vscale x 1 x half>)
+
+define <vscale x 1 x half> @mgather_nxv1f16(<vscale x 1 x half*> %ptrs, <vscale x 1 x i1> %m, <vscale x 1 x half> %passthru) {
+; RV32-LABEL: mgather_nxv1f16:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e16,mf4,tu,mu
+; RV32-NEXT:    vloxei32.v v9, (zero), v8, v0.t
+; RV32-NEXT:    vmv1r.v v8, v9
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv1f16:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e16,mf4,tu,mu
+; RV64-NEXT:    vloxei64.v v9, (zero), v8, v0.t
+; RV64-NEXT:    vmv1r.v v8, v9
+; RV64-NEXT:    ret
+  %v = call <vscale x 1 x half> @llvm.masked.gather.nxv1f16.nxv1p0f16(<vscale x 1 x half*> %ptrs, i32 2, <vscale x 1 x i1> %m, <vscale x 1 x half> %passthru)
+  ret <vscale x 1 x half> %v
+}
+
+declare <vscale x 2 x half> @llvm.masked.gather.nxv2f16.nxv2p0f16(<vscale x 2 x half*>, i32, <vscale x 2 x i1>, <vscale x 2 x half>)
+
+define <vscale x 2 x half> @mgather_nxv2f16(<vscale x 2 x half*> %ptrs, <vscale x 2 x i1> %m, <vscale x 2 x half> %passthru) {
+; RV32-LABEL: mgather_nxv2f16:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e16,mf2,tu,mu
+; RV32-NEXT:    vloxei32.v v9, (zero), v8, v0.t
+; RV32-NEXT:    vmv1r.v v8, v9
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv2f16:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e16,mf2,tu,mu
+; RV64-NEXT:    vloxei64.v v10, (zero), v8, v0.t
+; RV64-NEXT:    vmv1r.v v8, v10
+; RV64-NEXT:    ret
+  %v = call <vscale x 2 x half> @llvm.masked.gather.nxv2f16.nxv2p0f16(<vscale x 2 x half*> %ptrs, i32 2, <vscale x 2 x i1> %m, <vscale x 2 x half> %passthru)
+  ret <vscale x 2 x half> %v
+}
+
+declare <vscale x 4 x half> @llvm.masked.gather.nxv4f16.nxv4p0f16(<vscale x 4 x half*>, i32, <vscale x 4 x i1>, <vscale x 4 x half>)
+
+define <vscale x 4 x half> @mgather_nxv4f16(<vscale x 4 x half*> %ptrs, <vscale x 4 x i1> %m, <vscale x 4 x half> %passthru) {
+; RV32-LABEL: mgather_nxv4f16:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e16,m1,tu,mu
+; RV32-NEXT:    vloxei32.v v10, (zero), v8, v0.t
+; RV32-NEXT:    vmv1r.v v8, v10
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv4f16:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e16,m1,tu,mu
+; RV64-NEXT:    vloxei64.v v12, (zero), v8, v0.t
+; RV64-NEXT:    vmv1r.v v8, v12
+; RV64-NEXT:    ret
+  %v = call <vscale x 4 x half> @llvm.masked.gather.nxv4f16.nxv4p0f16(<vscale x 4 x half*> %ptrs, i32 2, <vscale x 4 x i1> %m, <vscale x 4 x half> %passthru)
+  ret <vscale x 4 x half> %v
+}
+
+define <vscale x 4 x half> @mgather_truemask_nxv4f16(<vscale x 4 x half*> %ptrs, <vscale x 4 x half> %passthru) {
+; RV32-LABEL: mgather_truemask_nxv4f16:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e16,m1,ta,mu
+; RV32-NEXT:    vloxei32.v v8, (zero), v8
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_truemask_nxv4f16:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e16,m1,ta,mu
+; RV64-NEXT:    vloxei64.v v8, (zero), v8
+; RV64-NEXT:    ret
+  %mhead = insertelement <vscale x 4 x i1> undef, i1 1, i32 0
+  %mtrue = shufflevector <vscale x 4 x i1> %mhead, <vscale x 4 x i1> undef, <vscale x 4 x i32> zeroinitializer
+  %v = call <vscale x 4 x half> @llvm.masked.gather.nxv4f16.nxv4p0f16(<vscale x 4 x half*> %ptrs, i32 2, <vscale x 4 x i1> %mtrue, <vscale x 4 x half> %passthru)
+  ret <vscale x 4 x half> %v
+}
+
+declare <vscale x 8 x half> @llvm.masked.gather.nxv8f16.nxv8p0f16(<vscale x 8 x half*>, i32, <vscale x 8 x i1>, <vscale x 8 x half>)
+
+define <vscale x 8 x half> @mgather_nxv8f16(<vscale x 8 x half*> %ptrs, <vscale x 8 x i1> %m, <vscale x 8 x half> %passthru) {
+; RV32-LABEL: mgather_nxv8f16:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e16,m2,tu,mu
+; RV32-NEXT:    vloxei32.v v12, (zero), v8, v0.t
+; RV32-NEXT:    vmv2r.v v8, v12
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv8f16:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e16,m2,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (zero), v8, v0.t
+; RV64-NEXT:    vmv2r.v v8, v16
+; RV64-NEXT:    ret
+  %v = call <vscale x 8 x half> @llvm.masked.gather.nxv8f16.nxv8p0f16(<vscale x 8 x half*> %ptrs, i32 2, <vscale x 8 x i1> %m, <vscale x 8 x half> %passthru)
+  ret <vscale x 8 x half> %v
+}
+
+define <vscale x 8 x half> @mgather_baseidx_nxv8i8_nxv8f16(half* %base, <vscale x 8 x i8> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x half> %passthru) {
+; RV32-LABEL: mgather_baseidx_nxv8i8_nxv8f16:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf4 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 1
+; RV32-NEXT:    vsetvli a1, zero, e16,m2,tu,mu
+; RV32-NEXT:    vloxei32.v v10, (a0), v28, v0.t
+; RV32-NEXT:    vmv2r.v v8, v10
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_nxv8i8_nxv8f16:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf8 v16, v8
+; RV64-NEXT:    vsll.vi v16, v16, 1
+; RV64-NEXT:    vsetvli a1, zero, e16,m2,tu,mu
+; RV64-NEXT:    vloxei64.v v10, (a0), v16, v0.t
+; RV64-NEXT:    vmv2r.v v8, v10
+; RV64-NEXT:    ret
+  %ptrs = getelementptr inbounds half, half* %base, <vscale x 8 x i8> %idxs
+  %v = call <vscale x 8 x half> @llvm.masked.gather.nxv8f16.nxv8p0f16(<vscale x 8 x half*> %ptrs, i32 2, <vscale x 8 x i1> %m, <vscale x 8 x half> %passthru)
+  ret <vscale x 8 x half> %v
+}
+
+define <vscale x 8 x half> @mgather_baseidx_sext_nxv8i8_nxv8f16(half* %base, <vscale x 8 x i8> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x half> %passthru) {
+; RV32-LABEL: mgather_baseidx_sext_nxv8i8_nxv8f16:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf4 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 1
+; RV32-NEXT:    vsetvli a1, zero, e16,m2,tu,mu
+; RV32-NEXT:    vloxei32.v v10, (a0), v28, v0.t
+; RV32-NEXT:    vmv2r.v v8, v10
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_sext_nxv8i8_nxv8f16:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf8 v16, v8
+; RV64-NEXT:    vsll.vi v16, v16, 1
+; RV64-NEXT:    vsetvli a1, zero, e16,m2,tu,mu
+; RV64-NEXT:    vloxei64.v v10, (a0), v16, v0.t
+; RV64-NEXT:    vmv2r.v v8, v10
+; RV64-NEXT:    ret
+  %eidxs = sext <vscale x 8 x i8> %idxs to <vscale x 8 x i16>
+  %ptrs = getelementptr inbounds half, half* %base, <vscale x 8 x i16> %eidxs
+  %v = call <vscale x 8 x half> @llvm.masked.gather.nxv8f16.nxv8p0f16(<vscale x 8 x half*> %ptrs, i32 2, <vscale x 8 x i1> %m, <vscale x 8 x half> %passthru)
+  ret <vscale x 8 x half> %v
+}
+
+define <vscale x 8 x half> @mgather_baseidx_zext_nxv8i8_nxv8f16(half* %base, <vscale x 8 x i8> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x half> %passthru) {
+; RV32-LABEL: mgather_baseidx_zext_nxv8i8_nxv8f16:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vzext.vf4 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 1
+; RV32-NEXT:    vsetvli a1, zero, e16,m2,tu,mu
+; RV32-NEXT:    vloxei32.v v10, (a0), v28, v0.t
+; RV32-NEXT:    vmv2r.v v8, v10
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_zext_nxv8i8_nxv8f16:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vzext.vf8 v16, v8
+; RV64-NEXT:    vsll.vi v16, v16, 1
+; RV64-NEXT:    vsetvli a1, zero, e16,m2,tu,mu
+; RV64-NEXT:    vloxei64.v v10, (a0), v16, v0.t
+; RV64-NEXT:    vmv2r.v v8, v10
+; RV64-NEXT:    ret
+  %eidxs = zext <vscale x 8 x i8> %idxs to <vscale x 8 x i16>
+  %ptrs = getelementptr inbounds half, half* %base, <vscale x 8 x i16> %eidxs
+  %v = call <vscale x 8 x half> @llvm.masked.gather.nxv8f16.nxv8p0f16(<vscale x 8 x half*> %ptrs, i32 2, <vscale x 8 x i1> %m, <vscale x 8 x half> %passthru)
+  ret <vscale x 8 x half> %v
+}
+
+define <vscale x 8 x half> @mgather_baseidx_nxv8f16(half* %base, <vscale x 8 x i16> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x half> %passthru) {
+; RV32-LABEL: mgather_baseidx_nxv8f16:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf2 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 1
+; RV32-NEXT:    vsetvli a1, zero, e16,m2,tu,mu
+; RV32-NEXT:    vloxei32.v v10, (a0), v28, v0.t
+; RV32-NEXT:    vmv2r.v v8, v10
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_nxv8f16:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf4 v16, v8
+; RV64-NEXT:    vsll.vi v16, v16, 1
+; RV64-NEXT:    vsetvli a1, zero, e16,m2,tu,mu
+; RV64-NEXT:    vloxei64.v v10, (a0), v16, v0.t
+; RV64-NEXT:    vmv2r.v v8, v10
+; RV64-NEXT:    ret
+  %ptrs = getelementptr inbounds half, half* %base, <vscale x 8 x i16> %idxs
+  %v = call <vscale x 8 x half> @llvm.masked.gather.nxv8f16.nxv8p0f16(<vscale x 8 x half*> %ptrs, i32 2, <vscale x 8 x i1> %m, <vscale x 8 x half> %passthru)
+  ret <vscale x 8 x half> %v
+}
+
+declare <vscale x 1 x float> @llvm.masked.gather.nxv1f32.nxv1p0f32(<vscale x 1 x float*>, i32, <vscale x 1 x i1>, <vscale x 1 x float>)
+
+define <vscale x 1 x float> @mgather_nxv1f32(<vscale x 1 x float*> %ptrs, <vscale x 1 x i1> %m, <vscale x 1 x float> %passthru) {
+; RV32-LABEL: mgather_nxv1f32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e32,mf2,tu,mu
+; RV32-NEXT:    vloxei32.v v9, (zero), v8, v0.t
+; RV32-NEXT:    vmv1r.v v8, v9
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv1f32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e32,mf2,tu,mu
+; RV64-NEXT:    vloxei64.v v9, (zero), v8, v0.t
+; RV64-NEXT:    vmv1r.v v8, v9
+; RV64-NEXT:    ret
+  %v = call <vscale x 1 x float> @llvm.masked.gather.nxv1f32.nxv1p0f32(<vscale x 1 x float*> %ptrs, i32 4, <vscale x 1 x i1> %m, <vscale x 1 x float> %passthru)
+  ret <vscale x 1 x float> %v
+}
+
+declare <vscale x 2 x float> @llvm.masked.gather.nxv2f32.nxv2p0f32(<vscale x 2 x float*>, i32, <vscale x 2 x i1>, <vscale x 2 x float>)
+
+define <vscale x 2 x float> @mgather_nxv2f32(<vscale x 2 x float*> %ptrs, <vscale x 2 x i1> %m, <vscale x 2 x float> %passthru) {
+; RV32-LABEL: mgather_nxv2f32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e32,m1,tu,mu
+; RV32-NEXT:    vloxei32.v v9, (zero), v8, v0.t
+; RV32-NEXT:    vmv1r.v v8, v9
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv2f32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e32,m1,tu,mu
+; RV64-NEXT:    vloxei64.v v10, (zero), v8, v0.t
+; RV64-NEXT:    vmv1r.v v8, v10
+; RV64-NEXT:    ret
+  %v = call <vscale x 2 x float> @llvm.masked.gather.nxv2f32.nxv2p0f32(<vscale x 2 x float*> %ptrs, i32 4, <vscale x 2 x i1> %m, <vscale x 2 x float> %passthru)
+  ret <vscale x 2 x float> %v
+}
+
+declare <vscale x 4 x float> @llvm.masked.gather.nxv4f32.nxv4p0f32(<vscale x 4 x float*>, i32, <vscale x 4 x i1>, <vscale x 4 x float>)
+
+define <vscale x 4 x float> @mgather_nxv4f32(<vscale x 4 x float*> %ptrs, <vscale x 4 x i1> %m, <vscale x 4 x float> %passthru) {
+; RV32-LABEL: mgather_nxv4f32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e32,m2,tu,mu
+; RV32-NEXT:    vloxei32.v v10, (zero), v8, v0.t
+; RV32-NEXT:    vmv2r.v v8, v10
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv4f32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e32,m2,tu,mu
+; RV64-NEXT:    vloxei64.v v12, (zero), v8, v0.t
+; RV64-NEXT:    vmv2r.v v8, v12
+; RV64-NEXT:    ret
+  %v = call <vscale x 4 x float> @llvm.masked.gather.nxv4f32.nxv4p0f32(<vscale x 4 x float*> %ptrs, i32 4, <vscale x 4 x i1> %m, <vscale x 4 x float> %passthru)
+  ret <vscale x 4 x float> %v
+}
+
+define <vscale x 4 x float> @mgather_truemask_nxv4f32(<vscale x 4 x float*> %ptrs, <vscale x 4 x float> %passthru) {
+; RV32-LABEL: mgather_truemask_nxv4f32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e32,m2,ta,mu
+; RV32-NEXT:    vloxei32.v v8, (zero), v8
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_truemask_nxv4f32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e32,m2,ta,mu
+; RV64-NEXT:    vloxei64.v v8, (zero), v8
+; RV64-NEXT:    ret
+  %mhead = insertelement <vscale x 4 x i1> undef, i1 1, i32 0
+  %mtrue = shufflevector <vscale x 4 x i1> %mhead, <vscale x 4 x i1> undef, <vscale x 4 x i32> zeroinitializer
+  %v = call <vscale x 4 x float> @llvm.masked.gather.nxv4f32.nxv4p0f32(<vscale x 4 x float*> %ptrs, i32 4, <vscale x 4 x i1> %mtrue, <vscale x 4 x float> %passthru)
+  ret <vscale x 4 x float> %v
+}
+
+declare <vscale x 8 x float> @llvm.masked.gather.nxv8f32.nxv8p0f32(<vscale x 8 x float*>, i32, <vscale x 8 x i1>, <vscale x 8 x float>)
+
+define <vscale x 8 x float> @mgather_nxv8f32(<vscale x 8 x float*> %ptrs, <vscale x 8 x i1> %m, <vscale x 8 x float> %passthru) {
+; RV32-LABEL: mgather_nxv8f32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e32,m4,tu,mu
+; RV32-NEXT:    vloxei32.v v12, (zero), v8, v0.t
+; RV32-NEXT:    vmv4r.v v8, v12
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv8f32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e32,m4,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (zero), v8, v0.t
+; RV64-NEXT:    vmv4r.v v8, v16
+; RV64-NEXT:    ret
+  %v = call <vscale x 8 x float> @llvm.masked.gather.nxv8f32.nxv8p0f32(<vscale x 8 x float*> %ptrs, i32 4, <vscale x 8 x i1> %m, <vscale x 8 x float> %passthru)
+  ret <vscale x 8 x float> %v
+}
+
+define <vscale x 8 x float> @mgather_baseidx_nxv8i8_nxv8f32(float* %base, <vscale x 8 x i8> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x float> %passthru) {
+; RV32-LABEL: mgather_baseidx_nxv8i8_nxv8f32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf4 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 2
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV32-NEXT:    vloxei32.v v12, (a0), v28, v0.t
+; RV32-NEXT:    vmv4r.v v8, v12
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_nxv8i8_nxv8f32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf8 v16, v8
+; RV64-NEXT:    vsll.vi v16, v16, 2
+; RV64-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV64-NEXT:    vloxei64.v v12, (a0), v16, v0.t
+; RV64-NEXT:    vmv4r.v v8, v12
+; RV64-NEXT:    ret
+  %ptrs = getelementptr inbounds float, float* %base, <vscale x 8 x i8> %idxs
+  %v = call <vscale x 8 x float> @llvm.masked.gather.nxv8f32.nxv8p0f32(<vscale x 8 x float*> %ptrs, i32 4, <vscale x 8 x i1> %m, <vscale x 8 x float> %passthru)
+  ret <vscale x 8 x float> %v
+}
+
+define <vscale x 8 x float> @mgather_baseidx_sext_nxv8i8_nxv8f32(float* %base, <vscale x 8 x i8> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x float> %passthru) {
+; RV32-LABEL: mgather_baseidx_sext_nxv8i8_nxv8f32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf4 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 2
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV32-NEXT:    vloxei32.v v12, (a0), v28, v0.t
+; RV32-NEXT:    vmv4r.v v8, v12
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_sext_nxv8i8_nxv8f32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf8 v16, v8
+; RV64-NEXT:    vsll.vi v16, v16, 2
+; RV64-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV64-NEXT:    vloxei64.v v12, (a0), v16, v0.t
+; RV64-NEXT:    vmv4r.v v8, v12
+; RV64-NEXT:    ret
+  %eidxs = sext <vscale x 8 x i8> %idxs to <vscale x 8 x i32>
+  %ptrs = getelementptr inbounds float, float* %base, <vscale x 8 x i32> %eidxs
+  %v = call <vscale x 8 x float> @llvm.masked.gather.nxv8f32.nxv8p0f32(<vscale x 8 x float*> %ptrs, i32 4, <vscale x 8 x i1> %m, <vscale x 8 x float> %passthru)
+  ret <vscale x 8 x float> %v
+}
+
+define <vscale x 8 x float> @mgather_baseidx_zext_nxv8i8_nxv8f32(float* %base, <vscale x 8 x i8> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x float> %passthru) {
+; RV32-LABEL: mgather_baseidx_zext_nxv8i8_nxv8f32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vzext.vf4 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 2
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV32-NEXT:    vloxei32.v v12, (a0), v28, v0.t
+; RV32-NEXT:    vmv4r.v v8, v12
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_zext_nxv8i8_nxv8f32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vzext.vf8 v16, v8
+; RV64-NEXT:    vsll.vi v16, v16, 2
+; RV64-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV64-NEXT:    vloxei64.v v12, (a0), v16, v0.t
+; RV64-NEXT:    vmv4r.v v8, v12
+; RV64-NEXT:    ret
+  %eidxs = zext <vscale x 8 x i8> %idxs to <vscale x 8 x i32>
+  %ptrs = getelementptr inbounds float, float* %base, <vscale x 8 x i32> %eidxs
+  %v = call <vscale x 8 x float> @llvm.masked.gather.nxv8f32.nxv8p0f32(<vscale x 8 x float*> %ptrs, i32 4, <vscale x 8 x i1> %m, <vscale x 8 x float> %passthru)
+  ret <vscale x 8 x float> %v
+}
+
+define <vscale x 8 x float> @mgather_baseidx_nxv8i16_nxv8f32(float* %base, <vscale x 8 x i16> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x float> %passthru) {
+; RV32-LABEL: mgather_baseidx_nxv8i16_nxv8f32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf2 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 2
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV32-NEXT:    vloxei32.v v12, (a0), v28, v0.t
+; RV32-NEXT:    vmv4r.v v8, v12
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_nxv8i16_nxv8f32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf4 v16, v8
+; RV64-NEXT:    vsll.vi v16, v16, 2
+; RV64-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV64-NEXT:    vloxei64.v v12, (a0), v16, v0.t
+; RV64-NEXT:    vmv4r.v v8, v12
+; RV64-NEXT:    ret
+  %ptrs = getelementptr inbounds float, float* %base, <vscale x 8 x i16> %idxs
+  %v = call <vscale x 8 x float> @llvm.masked.gather.nxv8f32.nxv8p0f32(<vscale x 8 x float*> %ptrs, i32 4, <vscale x 8 x i1> %m, <vscale x 8 x float> %passthru)
+  ret <vscale x 8 x float> %v
+}
+
+define <vscale x 8 x float> @mgather_baseidx_sext_nxv8i16_nxv8f32(float* %base, <vscale x 8 x i16> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x float> %passthru) {
+; RV32-LABEL: mgather_baseidx_sext_nxv8i16_nxv8f32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf2 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 2
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV32-NEXT:    vloxei32.v v12, (a0), v28, v0.t
+; RV32-NEXT:    vmv4r.v v8, v12
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_sext_nxv8i16_nxv8f32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf4 v16, v8
+; RV64-NEXT:    vsll.vi v16, v16, 2
+; RV64-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV64-NEXT:    vloxei64.v v12, (a0), v16, v0.t
+; RV64-NEXT:    vmv4r.v v8, v12
+; RV64-NEXT:    ret
+  %eidxs = sext <vscale x 8 x i16> %idxs to <vscale x 8 x i32>
+  %ptrs = getelementptr inbounds float, float* %base, <vscale x 8 x i32> %eidxs
+  %v = call <vscale x 8 x float> @llvm.masked.gather.nxv8f32.nxv8p0f32(<vscale x 8 x float*> %ptrs, i32 4, <vscale x 8 x i1> %m, <vscale x 8 x float> %passthru)
+  ret <vscale x 8 x float> %v
+}
+
+define <vscale x 8 x float> @mgather_baseidx_zext_nxv8i16_nxv8f32(float* %base, <vscale x 8 x i16> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x float> %passthru) {
+; RV32-LABEL: mgather_baseidx_zext_nxv8i16_nxv8f32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vzext.vf2 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 2
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV32-NEXT:    vloxei32.v v12, (a0), v28, v0.t
+; RV32-NEXT:    vmv4r.v v8, v12
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_zext_nxv8i16_nxv8f32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vzext.vf4 v16, v8
+; RV64-NEXT:    vsll.vi v16, v16, 2
+; RV64-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV64-NEXT:    vloxei64.v v12, (a0), v16, v0.t
+; RV64-NEXT:    vmv4r.v v8, v12
+; RV64-NEXT:    ret
+  %eidxs = zext <vscale x 8 x i16> %idxs to <vscale x 8 x i32>
+  %ptrs = getelementptr inbounds float, float* %base, <vscale x 8 x i32> %eidxs
+  %v = call <vscale x 8 x float> @llvm.masked.gather.nxv8f32.nxv8p0f32(<vscale x 8 x float*> %ptrs, i32 4, <vscale x 8 x i1> %m, <vscale x 8 x float> %passthru)
+  ret <vscale x 8 x float> %v
+}
+
+define <vscale x 8 x float> @mgather_baseidx_nxv8f32(float* %base, <vscale x 8 x i32> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x float> %passthru) {
+; RV32-LABEL: mgather_baseidx_nxv8f32:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsll.vi v28, v8, 2
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV32-NEXT:    vloxei32.v v12, (a0), v28, v0.t
+; RV32-NEXT:    vmv4r.v v8, v12
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_nxv8f32:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf2 v16, v8
+; RV64-NEXT:    vsll.vi v16, v16, 2
+; RV64-NEXT:    vsetvli a1, zero, e32,m4,tu,mu
+; RV64-NEXT:    vloxei64.v v12, (a0), v16, v0.t
+; RV64-NEXT:    vmv4r.v v8, v12
+; RV64-NEXT:    ret
+  %ptrs = getelementptr inbounds float, float* %base, <vscale x 8 x i32> %idxs
+  %v = call <vscale x 8 x float> @llvm.masked.gather.nxv8f32.nxv8p0f32(<vscale x 8 x float*> %ptrs, i32 4, <vscale x 8 x i1> %m, <vscale x 8 x float> %passthru)
+  ret <vscale x 8 x float> %v
+}
+
+declare <vscale x 1 x double> @llvm.masked.gather.nxv1f64.nxv1p0f64(<vscale x 1 x double*>, i32, <vscale x 1 x i1>, <vscale x 1 x double>)
+
+define <vscale x 1 x double> @mgather_nxv1f64(<vscale x 1 x double*> %ptrs, <vscale x 1 x i1> %m, <vscale x 1 x double> %passthru) {
+; RV32-LABEL: mgather_nxv1f64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e64,m1,tu,mu
+; RV32-NEXT:    vloxei32.v v9, (zero), v8, v0.t
+; RV32-NEXT:    vmv1r.v v8, v9
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv1f64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e64,m1,tu,mu
+; RV64-NEXT:    vloxei64.v v9, (zero), v8, v0.t
+; RV64-NEXT:    vmv1r.v v8, v9
+; RV64-NEXT:    ret
+  %v = call <vscale x 1 x double> @llvm.masked.gather.nxv1f64.nxv1p0f64(<vscale x 1 x double*> %ptrs, i32 8, <vscale x 1 x i1> %m, <vscale x 1 x double> %passthru)
+  ret <vscale x 1 x double> %v
+}
+
+declare <vscale x 2 x double> @llvm.masked.gather.nxv2f64.nxv2p0f64(<vscale x 2 x double*>, i32, <vscale x 2 x i1>, <vscale x 2 x double>)
+
+define <vscale x 2 x double> @mgather_nxv2f64(<vscale x 2 x double*> %ptrs, <vscale x 2 x i1> %m, <vscale x 2 x double> %passthru) {
+; RV32-LABEL: mgather_nxv2f64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e64,m2,tu,mu
+; RV32-NEXT:    vloxei32.v v10, (zero), v8, v0.t
+; RV32-NEXT:    vmv2r.v v8, v10
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv2f64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e64,m2,tu,mu
+; RV64-NEXT:    vloxei64.v v10, (zero), v8, v0.t
+; RV64-NEXT:    vmv2r.v v8, v10
+; RV64-NEXT:    ret
+  %v = call <vscale x 2 x double> @llvm.masked.gather.nxv2f64.nxv2p0f64(<vscale x 2 x double*> %ptrs, i32 8, <vscale x 2 x i1> %m, <vscale x 2 x double> %passthru)
+  ret <vscale x 2 x double> %v
+}
+
+declare <vscale x 4 x double> @llvm.masked.gather.nxv4f64.nxv4p0f64(<vscale x 4 x double*>, i32, <vscale x 4 x i1>, <vscale x 4 x double>)
+
+define <vscale x 4 x double> @mgather_nxv4f64(<vscale x 4 x double*> %ptrs, <vscale x 4 x i1> %m, <vscale x 4 x double> %passthru) {
+; RV32-LABEL: mgather_nxv4f64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e64,m4,tu,mu
+; RV32-NEXT:    vloxei32.v v12, (zero), v8, v0.t
+; RV32-NEXT:    vmv4r.v v8, v12
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv4f64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e64,m4,tu,mu
+; RV64-NEXT:    vloxei64.v v12, (zero), v8, v0.t
+; RV64-NEXT:    vmv4r.v v8, v12
+; RV64-NEXT:    ret
+  %v = call <vscale x 4 x double> @llvm.masked.gather.nxv4f64.nxv4p0f64(<vscale x 4 x double*> %ptrs, i32 8, <vscale x 4 x i1> %m, <vscale x 4 x double> %passthru)
+  ret <vscale x 4 x double> %v
+}
+
+define <vscale x 4 x double> @mgather_truemask_nxv4f64(<vscale x 4 x double*> %ptrs, <vscale x 4 x double> %passthru) {
+; RV32-LABEL: mgather_truemask_nxv4f64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e64,m4,ta,mu
+; RV32-NEXT:    vloxei32.v v8, (zero), v8
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_truemask_nxv4f64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e64,m4,ta,mu
+; RV64-NEXT:    vloxei64.v v8, (zero), v8
+; RV64-NEXT:    ret
+  %mhead = insertelement <vscale x 4 x i1> undef, i1 1, i32 0
+  %mtrue = shufflevector <vscale x 4 x i1> %mhead, <vscale x 4 x i1> undef, <vscale x 4 x i32> zeroinitializer
+  %v = call <vscale x 4 x double> @llvm.masked.gather.nxv4f64.nxv4p0f64(<vscale x 4 x double*> %ptrs, i32 8, <vscale x 4 x i1> %mtrue, <vscale x 4 x double> %passthru)
+  ret <vscale x 4 x double> %v
+}
+
+declare <vscale x 8 x double> @llvm.masked.gather.nxv8f64.nxv8p0f64(<vscale x 8 x double*>, i32, <vscale x 8 x i1>, <vscale x 8 x double>)
+
+define <vscale x 8 x double> @mgather_nxv8f64(<vscale x 8 x double*> %ptrs, <vscale x 8 x i1> %m, <vscale x 8 x double> %passthru) {
+; RV32-LABEL: mgather_nxv8f64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a0, zero, e64,m8,tu,mu
+; RV32-NEXT:    vloxei32.v v16, (zero), v8, v0.t
+; RV32-NEXT:    vmv8r.v v8, v16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_nxv8f64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a0, zero, e64,m8,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (zero), v8, v0.t
+; RV64-NEXT:    vmv8r.v v8, v16
+; RV64-NEXT:    ret
+  %v = call <vscale x 8 x double> @llvm.masked.gather.nxv8f64.nxv8p0f64(<vscale x 8 x double*> %ptrs, i32 8, <vscale x 8 x i1> %m, <vscale x 8 x double> %passthru)
+  ret <vscale x 8 x double> %v
+}
+
+define <vscale x 8 x double> @mgather_baseidx_nxv8i8_nxv8f64(double* %base, <vscale x 8 x i8> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x double> %passthru) {
+; RV32-LABEL: mgather_baseidx_nxv8i8_nxv8f64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf4 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 3
+; RV32-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV32-NEXT:    vloxei32.v v16, (a0), v28, v0.t
+; RV32-NEXT:    vmv8r.v v8, v16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_nxv8i8_nxv8f64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf8 v24, v8
+; RV64-NEXT:    vsll.vi v8, v24, 3
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (a0), v8, v0.t
+; RV64-NEXT:    vmv8r.v v8, v16
+; RV64-NEXT:    ret
+  %ptrs = getelementptr inbounds double, double* %base, <vscale x 8 x i8> %idxs
+  %v = call <vscale x 8 x double> @llvm.masked.gather.nxv8f64.nxv8p0f64(<vscale x 8 x double*> %ptrs, i32 8, <vscale x 8 x i1> %m, <vscale x 8 x double> %passthru)
+  ret <vscale x 8 x double> %v
+}
+
+define <vscale x 8 x double> @mgather_baseidx_sext_nxv8i8_nxv8f64(double* %base, <vscale x 8 x i8> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x double> %passthru) {
+; RV32-LABEL: mgather_baseidx_sext_nxv8i8_nxv8f64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf4 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 3
+; RV32-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV32-NEXT:    vloxei32.v v16, (a0), v28, v0.t
+; RV32-NEXT:    vmv8r.v v8, v16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_sext_nxv8i8_nxv8f64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf8 v24, v8
+; RV64-NEXT:    vsll.vi v8, v24, 3
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (a0), v8, v0.t
+; RV64-NEXT:    vmv8r.v v8, v16
+; RV64-NEXT:    ret
+  %eidxs = sext <vscale x 8 x i8> %idxs to <vscale x 8 x i64>
+  %ptrs = getelementptr inbounds double, double* %base, <vscale x 8 x i64> %eidxs
+  %v = call <vscale x 8 x double> @llvm.masked.gather.nxv8f64.nxv8p0f64(<vscale x 8 x double*> %ptrs, i32 8, <vscale x 8 x i1> %m, <vscale x 8 x double> %passthru)
+  ret <vscale x 8 x double> %v
+}
+
+define <vscale x 8 x double> @mgather_baseidx_zext_nxv8i8_nxv8f64(double* %base, <vscale x 8 x i8> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x double> %passthru) {
+; RV32-LABEL: mgather_baseidx_zext_nxv8i8_nxv8f64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vzext.vf4 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 3
+; RV32-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV32-NEXT:    vloxei32.v v16, (a0), v28, v0.t
+; RV32-NEXT:    vmv8r.v v8, v16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_zext_nxv8i8_nxv8f64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vzext.vf8 v24, v8
+; RV64-NEXT:    vsll.vi v8, v24, 3
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (a0), v8, v0.t
+; RV64-NEXT:    vmv8r.v v8, v16
+; RV64-NEXT:    ret
+  %eidxs = zext <vscale x 8 x i8> %idxs to <vscale x 8 x i64>
+  %ptrs = getelementptr inbounds double, double* %base, <vscale x 8 x i64> %eidxs
+  %v = call <vscale x 8 x double> @llvm.masked.gather.nxv8f64.nxv8p0f64(<vscale x 8 x double*> %ptrs, i32 8, <vscale x 8 x i1> %m, <vscale x 8 x double> %passthru)
+  ret <vscale x 8 x double> %v
+}
+
+define <vscale x 8 x double> @mgather_baseidx_nxv8i16_nxv8f64(double* %base, <vscale x 8 x i16> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x double> %passthru) {
+; RV32-LABEL: mgather_baseidx_nxv8i16_nxv8f64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf2 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 3
+; RV32-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV32-NEXT:    vloxei32.v v16, (a0), v28, v0.t
+; RV32-NEXT:    vmv8r.v v8, v16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_nxv8i16_nxv8f64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf4 v24, v8
+; RV64-NEXT:    vsll.vi v8, v24, 3
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (a0), v8, v0.t
+; RV64-NEXT:    vmv8r.v v8, v16
+; RV64-NEXT:    ret
+  %ptrs = getelementptr inbounds double, double* %base, <vscale x 8 x i16> %idxs
+  %v = call <vscale x 8 x double> @llvm.masked.gather.nxv8f64.nxv8p0f64(<vscale x 8 x double*> %ptrs, i32 8, <vscale x 8 x i1> %m, <vscale x 8 x double> %passthru)
+  ret <vscale x 8 x double> %v
+}
+
+define <vscale x 8 x double> @mgather_baseidx_sext_nxv8i16_nxv8f64(double* %base, <vscale x 8 x i16> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x double> %passthru) {
+; RV32-LABEL: mgather_baseidx_sext_nxv8i16_nxv8f64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsext.vf2 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 3
+; RV32-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV32-NEXT:    vloxei32.v v16, (a0), v28, v0.t
+; RV32-NEXT:    vmv8r.v v8, v16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_sext_nxv8i16_nxv8f64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf4 v24, v8
+; RV64-NEXT:    vsll.vi v8, v24, 3
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (a0), v8, v0.t
+; RV64-NEXT:    vmv8r.v v8, v16
+; RV64-NEXT:    ret
+  %eidxs = sext <vscale x 8 x i16> %idxs to <vscale x 8 x i64>
+  %ptrs = getelementptr inbounds double, double* %base, <vscale x 8 x i64> %eidxs
+  %v = call <vscale x 8 x double> @llvm.masked.gather.nxv8f64.nxv8p0f64(<vscale x 8 x double*> %ptrs, i32 8, <vscale x 8 x i1> %m, <vscale x 8 x double> %passthru)
+  ret <vscale x 8 x double> %v
+}
+
+define <vscale x 8 x double> @mgather_baseidx_zext_nxv8i16_nxv8f64(double* %base, <vscale x 8 x i16> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x double> %passthru) {
+; RV32-LABEL: mgather_baseidx_zext_nxv8i16_nxv8f64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vzext.vf2 v28, v8
+; RV32-NEXT:    vsll.vi v28, v28, 3
+; RV32-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV32-NEXT:    vloxei32.v v16, (a0), v28, v0.t
+; RV32-NEXT:    vmv8r.v v8, v16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_zext_nxv8i16_nxv8f64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vzext.vf4 v24, v8
+; RV64-NEXT:    vsll.vi v8, v24, 3
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (a0), v8, v0.t
+; RV64-NEXT:    vmv8r.v v8, v16
+; RV64-NEXT:    ret
+  %eidxs = zext <vscale x 8 x i16> %idxs to <vscale x 8 x i64>
+  %ptrs = getelementptr inbounds double, double* %base, <vscale x 8 x i64> %eidxs
+  %v = call <vscale x 8 x double> @llvm.masked.gather.nxv8f64.nxv8p0f64(<vscale x 8 x double*> %ptrs, i32 8, <vscale x 8 x i1> %m, <vscale x 8 x double> %passthru)
+  ret <vscale x 8 x double> %v
+}
+
+define <vscale x 8 x double> @mgather_baseidx_nxv8i32_nxv8f64(double* %base, <vscale x 8 x i32> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x double> %passthru) {
+; RV32-LABEL: mgather_baseidx_nxv8i32_nxv8f64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsll.vi v28, v8, 3
+; RV32-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV32-NEXT:    vloxei32.v v16, (a0), v28, v0.t
+; RV32-NEXT:    vmv8r.v v8, v16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_nxv8i32_nxv8f64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf2 v24, v8
+; RV64-NEXT:    vsll.vi v8, v24, 3
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (a0), v8, v0.t
+; RV64-NEXT:    vmv8r.v v8, v16
+; RV64-NEXT:    ret
+  %ptrs = getelementptr inbounds double, double* %base, <vscale x 8 x i32> %idxs
+  %v = call <vscale x 8 x double> @llvm.masked.gather.nxv8f64.nxv8p0f64(<vscale x 8 x double*> %ptrs, i32 8, <vscale x 8 x i1> %m, <vscale x 8 x double> %passthru)
+  ret <vscale x 8 x double> %v
+}
+
+define <vscale x 8 x double> @mgather_baseidx_sext_nxv8i32_nxv8f64(double* %base, <vscale x 8 x i32> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x double> %passthru) {
+; RV32-LABEL: mgather_baseidx_sext_nxv8i32_nxv8f64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsll.vi v28, v8, 3
+; RV32-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV32-NEXT:    vloxei32.v v16, (a0), v28, v0.t
+; RV32-NEXT:    vmv8r.v v8, v16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_sext_nxv8i32_nxv8f64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsext.vf2 v24, v8
+; RV64-NEXT:    vsll.vi v8, v24, 3
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (a0), v8, v0.t
+; RV64-NEXT:    vmv8r.v v8, v16
+; RV64-NEXT:    ret
+  %eidxs = sext <vscale x 8 x i32> %idxs to <vscale x 8 x i64>
+  %ptrs = getelementptr inbounds double, double* %base, <vscale x 8 x i64> %eidxs
+  %v = call <vscale x 8 x double> @llvm.masked.gather.nxv8f64.nxv8p0f64(<vscale x 8 x double*> %ptrs, i32 8, <vscale x 8 x i1> %m, <vscale x 8 x double> %passthru)
+  ret <vscale x 8 x double> %v
+}
+
+define <vscale x 8 x double> @mgather_baseidx_zext_nxv8i32_nxv8f64(double* %base, <vscale x 8 x i32> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x double> %passthru) {
+; RV32-LABEL: mgather_baseidx_zext_nxv8i32_nxv8f64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e32,m4,ta,mu
+; RV32-NEXT:    vsll.vi v28, v8, 3
+; RV32-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV32-NEXT:    vloxei32.v v16, (a0), v28, v0.t
+; RV32-NEXT:    vmv8r.v v8, v16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_zext_nxv8i32_nxv8f64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vzext.vf2 v24, v8
+; RV64-NEXT:    vsll.vi v8, v24, 3
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (a0), v8, v0.t
+; RV64-NEXT:    vmv8r.v v8, v16
+; RV64-NEXT:    ret
+  %eidxs = zext <vscale x 8 x i32> %idxs to <vscale x 8 x i64>
+  %ptrs = getelementptr inbounds double, double* %base, <vscale x 8 x i64> %eidxs
+  %v = call <vscale x 8 x double> @llvm.masked.gather.nxv8f64.nxv8p0f64(<vscale x 8 x double*> %ptrs, i32 8, <vscale x 8 x i1> %m, <vscale x 8 x double> %passthru)
+  ret <vscale x 8 x double> %v
+}
+
+define <vscale x 8 x double> @mgather_baseidx_nxv8f64(double* %base, <vscale x 8 x i64> %idxs, <vscale x 8 x i1> %m, <vscale x 8 x double> %passthru) {
+; RV32-LABEL: mgather_baseidx_nxv8f64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV32-NEXT:    vsll.vi v8, v8, 3
+; RV32-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV32-NEXT:    vloxei64.v v16, (a0), v8, v0.t
+; RV32-NEXT:    vmv8r.v v8, v16
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: mgather_baseidx_nxv8f64:
+; RV64:       # %bb.0:
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,ta,mu
+; RV64-NEXT:    vsll.vi v8, v8, 3
+; RV64-NEXT:    vsetvli a1, zero, e64,m8,tu,mu
+; RV64-NEXT:    vloxei64.v v16, (a0), v8, v0.t
+; RV64-NEXT:    vmv8r.v v8, v16
+; RV64-NEXT:    ret
+  %ptrs = getelementptr inbounds double, double* %base, <vscale x 8 x i64> %idxs
+  %v = call <vscale x 8 x double> @llvm.masked.gather.nxv8f64.nxv8p0f64(<vscale x 8 x double*> %ptrs, i32 8, <vscale x 8 x i1> %m, <vscale x 8 x double> %passthru)
+  ret <vscale x 8 x double> %v
+}