[AArch64]SME2 single-multi and multi-multi INT dot product instructions[part1]

[CarolineConcatto]

Summary

This patch adds the assembly/disassembly for the following instructions:

SDOT (2-way, multiple and single vector): Multi-vector signed integer dot-product by vector.
     (2-way, multiple vectors): Multi-vector signed integer dot-product.
UDOT (2-way, multiple and single vector): Multi-vector unsigned integer dot-product by vector.
     (2-way, multiple vectors): Multi-vector unsigned integer dot-product.
SUDOT (multiple and indexed vector): Multi-vector signed by unsigned integer dot-product by indexed elements.
      (multiple and single vector): Multi-vector signed by unsigned integer dot-product by vector.
USDOT (multiple and single vector): Multi-vector unsigned by signed integer dot-product by vector.
      (multiple vectors): Multi-vector unsigned by signed integer dot-product.

for groups of 2 and 4 ZA registers

The reference can be found here:

https://developer.arm.com/documentation/ddi0602/2022-09

Depends on:D135455

[sdesmalen]

Are there any *-diagnostics.s tests for these instructions?

llvm/lib/Target/AArch64/AArch64RegisterInfo.td

1037

This can be removed in favour of ZZ_b since you've landed D135952 ?

llvm/lib/Target/AArch64/AArch64SMEInstrInfo.td

432

nit: unnecessary whitespace changes

llvm/lib/Target/AArch64/SMEInstrFormats.td

2031

Can this suffix be moved to the instantiation of this class? i.e. def SDOT_VG2_M2ZZ_HtoS : sme2_int_dot_array_vg2_single_2way<...>

[CarolineConcatto]

-Rebase

[CarolineConcatto]

These instructions are in D135683

llvm/lib/Target/AArch64/AArch64RegisterInfo.td

 def Z_d  : RegisterOperand<ZPR,  "printTypedVectorList<0,'d'>"> {
   let ParserMatchClass = ZPRVectorList<64, 1>;
 }
 
 def ZZ_b  : RegisterOperand<ZPR2, "printTypedVectorList<0,'b'>"> {
   let ParserMatchClass = ZPRVectorList<8, 2>;
 }
 
+def ZZ_b_r  : RegisterOperand<ZPR2, "printTypedVectorList<0,'b',2,true>"> {
+  let ParserMatchClass = ZPRVectorList<8, 2>;
+}
+
 def ZZ_h  : RegisterOperand<ZPR2, "printTypedVectorList<0,'h'>"> {
   let ParserMatchClass = ZPRVectorList<16, 2>;
 }
 
 def ZZ_h_r  : RegisterOperand<ZPR2, "printTypedVectorList<0,'h',2,true>"> {
   let ParserMatchClass = ZPRVectorList<16, 2>;
 }
 

 def ZZZ_d  : RegisterOperand<ZPR3, "printTypedVectorList<0,'d'>"> {
   let ParserMatchClass = ZPRVectorList<64, 3>;
 }
 
 def ZZZZ_b : RegisterOperand<ZPR4, "printTypedVectorList<0,'b'>"> {
   let ParserMatchClass = ZPRVectorList<8, 4>;
 }
 
+def ZZZZ_b_r : RegisterOperand<ZPR4, "printTypedVectorList<0,'b',4,true>"> {
+  let ParserMatchClass = ZPRVectorList<8, 4>;
+}
+
 def ZZZZ_h : RegisterOperand<ZPR4, "printTypedVectorList<0,'h'>"> {
   let ParserMatchClass = ZPRVectorList<16, 4>;
 }
 
 def ZZZZ_h_r : RegisterOperand<ZPR4, "printTypedVectorList<0,'h',4,true>"> {
   let ParserMatchClass = ZPRVectorList<16, 4>;
 }
 

llvm/lib/Target/AArch64/AArch64SMEInstrInfo.td

 
 defm BFVDOT_VG2_M2ZZI    : sme2_dot_array_vg2_index_HToS<"bfvdot", 0b0011>;
 defm FVDOT_VG2_M2ZZI     : sme2_dot_array_vg2_index_HToS<"fvdot",  0b0001>;
 
 defm SDOT_VG2_M2ZZI_HToS : sme2_dot_array_vg2_index_HToS<"sdot", 0b1000>;
 defm SDOT_VG2_M2ZZI_BToS : sme2_dot_array_vg2_index_BToS<"sdot", 0b1100>;
 defm SDOT_VG4_M4ZZI_HToS : sme2_dot_array_vg4_index_HtoS<"sdot", 0b1000>;
 defm SDOT_VG4_M4ZZI_BToS : sme2_dot_array_vg4_index_BtoS<"sdot", 0b1100>;
+defm SDOT_VG2_M2ZZ : sme2_int_dot_array_vg2_single_2way<"sdot", 0b0>;
+defm SDOT_VG4_M4ZZ : sme2_int_dot_array_vg4_single_2way<"sdot", 0b0>;
+defm SDOT_VG2_M2Z2Z : sme2_int_dot_array_vg2_multi_2way<"sdot", 0b0>;
+defm SDOT_VG4_M4Z4Z : sme2_int_dot_array_vg4_multi_2way<"sdot", 0b0>;
+
 
 defm SUDOT_VG2_M2ZZI : sme2_dot_array_vg2_index_BToS<"sudot",  0b1111>;
 defm SUDOT_VG4_M4ZZI : sme2_dot_array_vg4_index_BtoS<"sudot",  0b1111>;
+defm SUDOT_VG2_M2ZZ  : sme2_int_dot_array_vg2_single<"sudot", 0b1>;
+defm SUDOT_VG4_M4ZZ  : sme2_int_dot_array_vg4_single<"sudot", 0b1>;
 
 defm SVDOT_VG2_M2ZZI      : sme2_dot_array_vg2_index_HToS<"svdot",  0b0100>;
 defm SVDOT_VG4_M4ZZI_BtoS : sme2_dot_array_vg4_index_BtoS<"svdot",  0b0100>;
 defm SUVDOT_VG4_M4ZZI : sme2_dot_array_vg4_index_BtoS<"suvdot", 0b0111>;
 
 defm UDOT_VG2_M2ZZI_HToS : sme2_dot_array_vg2_index_HToS<"udot", 0b1010>;
 defm UDOT_VG2_M2ZZI_BToS : sme2_dot_array_vg2_index_BToS<"udot", 0b1110>;
 defm UDOT_VG4_M4ZZI_BtoS : sme2_dot_array_vg4_index_BtoS<"udot", 0b1110>;
 defm UDOT_VG4_M4ZZI_HToS : sme2_dot_array_vg4_index_HtoS<"udot", 0b1010>;
+defm UDOT_VG2_M2ZZ_2W : sme2_int_dot_array_vg2_single_2way<"udot", 0b1>;
+defm UDOT_VG4_M4ZZ_2W : sme2_int_dot_array_vg4_single_2way<"udot", 0b1>;
+defm UDOT_VG2_M2Z2Z_2W : sme2_int_dot_array_vg2_multi_2way<"udot", 0b1>;
+defm UDOT_VG4_M4Z4Z_2W : sme2_int_dot_array_vg4_multi_2way<"udot", 0b1>;
+
 defm USDOT_VG2_M2ZZI : sme2_dot_array_vg2_index_BToS<"usdot",  0b1101>;
 defm USDOT_VG4_M4ZZI : sme2_dot_array_vg4_index_BtoS<"usdot",  0b1101>;
+defm USDOT_VG2_M2ZZ  : sme2_int_dot_array_vg2_single<"usdot", 0b0>;
+defm USDOT_VG4_M4ZZ  : sme2_int_dot_array_vg4_single<"usdot", 0b0>;
+defm USDOT_VG2_M2Z2Z : sme2_int_dot_array_vg2_multi<"usdot">;
+defm USDOT_VG4_M4Z4Z : sme2_int_dot_array_vg4_multi<"usdot">;
+
 defm USVDOT_VG4_M4ZZI : sme2_dot_array_vg4_index_BtoS<"usvdot", 0b0101>;
 defm UVDOT_VG2_M2ZZI      : sme2_dot_array_vg2_index_HToS<"uvdot",  0b0110>;
 defm UVDOT_VG4_M4ZZI_BtoS : sme2_dot_array_vg4_index_BtoS<"uvdot",  0b0110>;
 
 }
 
 
 let Predicates = [HasSME2, HasSMEI64] in {
 
 defm ADD_VG2_M2ZZ_D  : sme2_mul_add_sub_array_vg2_single_D<"add", 0b10>;
 defm ADD_VG4_M4ZZ_D  : sme2_mul_add_sub_array_vg4_single_D<"add", 0b10>;
 defm ADD_VG2_M2Z2Z_D : sme2_mul_add_sub_array_vg2_multi_D<"add", 0b10>;
 defm ADD_VG4_M4Z4Z_D : sme2_mul_add_sub_array_vg4_multi_D<"add", 0b10>;
 
 defm SUB_VG2_M2ZZ_D  : sme2_mul_add_sub_array_vg2_single_D<"sub", 0b11>;
 defm SUB_VG4_M4ZZ_D  : sme2_mul_add_sub_array_vg4_single_D<"sub", 0b11>;
 defm SUB_VG2_M2Z2Z_D : sme2_mul_add_sub_array_vg2_multi_D<"sub", 0b11>;
 defm SUB_VG4_M4Z4Z_D : sme2_mul_add_sub_array_vg4_multi_D<"sub", 0b11>;
 
 defm SDOT_VG2_M2ZZI_HtoD : sme2_dot_array_vg2_index<"sdot",  0b01>;
 defm SDOT_VG4_M4ZZI_HtoD : sme2_dot_array_vg4_index<"sdot",  0b001>;
+
 defm SVDOT_VG4_M4ZZI_HtoD : sme2_dot_array_vg4_index<"svdot", 0b101>;
+
 defm UDOT_VG2_M2ZZI_HtoD : sme2_dot_array_vg2_index<"udot", 0b11>;
 defm UDOT_VG4_M4ZZI_HtoD : sme2_dot_array_vg4_index<"udot",  0b011>;
+
 defm UVDOT_VG4_M4ZZI_HtoD : sme2_dot_array_vg4_index<"uvdot", 0b111>;
 }
 
 let Predicates = [HasSME2, HasSMEF64] in {
 defm FMLA_VG2_M2ZZ_D  : sme2_mul_add_sub_array_vg2_single_D<"fmla", 0b00>;
 defm FMLA_VG4_M4ZZ_D  : sme2_mul_add_sub_array_vg4_single_D<"fmla", 0b00>;
 defm FMLA_VG2_M2Z2Z_D : sme2_mul_add_sub_array_vg2_multi_D<"fmla", 0b00>;
 defm FMLA_VG4_M4Z4Z_D : sme2_mul_add_sub_array_vg4_multi_D<"fmla", 0b00>;

llvm/lib/Target/AArch64/SMEInstrFormats.td

def NAME : sme2_fp_dot_array_vg24_multi<op, ZZZZ_h_mul_r, mnemonic, "vgx4">{
     let Inst{17-16} = 0b01;
     let Inst{9-7}   = Zn;
     let Inst{6}     = 0b0;
   }
 
   def : InstAlias<mnemonic # "\t$ZAda[$Rv, $imm3], $Zn, $Zm",
                  (!cast<Instruction>(NAME) MatrixOp32:$ZAda,  MatrixIndexGPR32Op8_11:$Rv, sme_elm_idx0_7:$imm3, ZZZZ_h_mul_r:$Zn, ZZZZ_h_mul_r:$Zm), 0>;
 }
+
+class sme2_int_dot_array_vg24_single_2way<bit op, bit vg4, bit u,
+                                          RegisterOperand multi_vector_ty,
+                                          ZPRRegOp zpr_ty,
+                                          string mnemonic>
+    : I<(outs MatrixOp32:$ZAda),
+        (ins MatrixOp32:$_ZAda, MatrixIndexGPR32Op8_11:$Rv, sme_elm_idx0_7:$imm3,
+         multi_vector_ty:$Zn, zpr_ty:$Zm),
+        mnemonic, "\t$ZAda[$Rv, $imm3, " # !if(vg4, "vgx4", "vgx2") # "], $Zn, $Zm",
+        "", []>, Sched<[]> {
+  bits<4> Zm;
+  bits<2> Rv;
+  bits<5> Zn;
+  bits<3> imm3;
+  let Inst{31-23} = 0b110000010;
+  let Inst{22}    = op;
+  let Inst{21}    = 0b1;
+  let Inst{20}    = vg4;
+  let Inst{19-16} = Zm;
+  let Inst{15}    = 0b0;
+  let Inst{14-13} = Rv;
+  let Inst{12-10} = 0b101;
+  let Inst{9-5}   = Zn;
+  let Inst{4}     = u;
+  let Inst{3}     = 0b1;
+  let Inst{2-0}   = imm3;
+
+  let Constraints = "$ZAda = $_ZAda";
+}
+
+multiclass sme2_int_dot_array_vg2_single_2way<string mnemonic, bit u> {
+  def _HtoS: sme2_int_dot_array_vg24_single_2way<0b1, 0b0, u, ZZ_h_r, ZPR4b16, mnemonic>;
+
+  def : InstAlias<mnemonic # "\t$ZAda[$Rv, $imm3], $Zn, $Zm",
+        (!cast<Instruction>(NAME # _HtoS) MatrixOp32:$ZAda,  MatrixIndexGPR32Op8_11:$Rv, sme_elm_idx0_7:$imm3, ZZ_h_r:$Zn, ZPR4b16:$Zm), 0>;
+}
+
+// SME2 single-multi two-way dot product four registers
+
+multiclass sme2_int_dot_array_vg4_single_2way<string mnemonic, bit u> {
+  def _HtoS: sme2_int_dot_array_vg24_single_2way<0b1, 0b1, u, ZZZZ_h_r, ZPR4b16, mnemonic>;
+
+  def : InstAlias<mnemonic # "\t$ZAda[$Rv, $imm3], $Zn, $Zm",
+        (!cast<Instruction>(NAME # _HtoS) MatrixOp32:$ZAda,  MatrixIndexGPR32Op8_11:$Rv, sme_elm_idx0_7:$imm3, ZZZZ_h_r:$Zn, ZPR4b16:$Zm), 0>;
+}
+
+multiclass sme2_int_dot_array_vg2_single<string mnemonic, bit u> {
+  def _BtoS: sme2_int_dot_array_vg24_single_2way<0b0, 0b0, u, ZZ_b_r, ZPR4b8, mnemonic>;
+
+  def : InstAlias<mnemonic # "\t$ZAda[$Rv, $imm3], $Zn, $Zm",
+        (!cast<Instruction>(NAME # _BtoS) MatrixOp32:$ZAda,  MatrixIndexGPR32Op8_11:$Rv, sme_elm_idx0_7:$imm3, ZZ_b_r:$Zn, ZPR4b8:$Zm), 0>;
+}
+
+multiclass sme2_int_dot_array_vg4_single<string mnemonic, bit u> {
+  def _BtoS: sme2_int_dot_array_vg24_single_2way<0b0, 0b1, u, ZZZZ_b_r, ZPR4b8, mnemonic>;
+
+  def : InstAlias<mnemonic # "\t$ZAda[$Rv, $imm3], $Zn, $Zm",
+        (!cast<Instruction>(NAME # _BtoS) MatrixOp32:$ZAda,  MatrixIndexGPR32Op8_11:$Rv, sme_elm_idx0_7:$imm3, ZZZZ_b_r:$Zn, ZPR4b8:$Zm), 0>;
+}
+
+class sme2_int_dot_array_vg24_multi_2way<bit op0, bit u, RegisterOperand multi_vector_ty,
+                                          string mnemonic, string vg_acronym>
+    : I<(outs MatrixOp32:$ZAda),
+        (ins MatrixOp32:$_ZAda, MatrixIndexGPR32Op8_11:$Rv, sme_elm_idx0_7:$imm3,
+         multi_vector_ty:$Zn, multi_vector_ty:$Zm),
+        mnemonic, "\t$ZAda[$Rv, $imm3, " # vg_acronym # "], $Zn, $Zm",
+        "", []>, Sched<[]> {
+  bits<2> Rv;
+  bits<3> imm3;
+  let Inst{31-23} = 0b110000011;
+  let Inst{22}    = op0;
+  let Inst{21}    = 0b1;
+  let Inst{15}    = 0b0;
+  let Inst{14-13} = Rv;
+  let Inst{12-10} = 0b101;
+  let Inst{5}     = 0b0;
+  let Inst{4}     = u;
+  let Inst{3}     = 0b1;
+  let Inst{2-0}   = imm3;
+
+  let Constraints = "$ZAda = $_ZAda";
+}
+
+
+// SME2 multi two-way dot product two registers
+
+multiclass sme2_int_dot_array_vg2_multi_2way<string mnemonic, bit u> {
+  def _HtoS : sme2_int_dot_array_vg24_multi_2way<0b1, u, ZZ_h_mul_r, mnemonic,
+                                             "vgx2"> {
+    bits<4> Zm;
+    bits<4> Zn;
+    let Inst{20-17} = Zm;
+    let Inst{16}    = 0b0;
+    let Inst{9-6}   = Zn;
+  }
+
+  def : InstAlias<mnemonic # "\t$ZAda[$Rv, $imm3], $Zn, $Zm",
+        (!cast<Instruction>(NAME # _HtoS) MatrixOp32:$ZAda, MatrixIndexGPR32Op8_11:$Rv, sme_elm_idx0_7:$imm3, ZZ_h_mul_r:$Zn, ZZ_h_mul_r:$Zm), 0>;
+
+}
+
+multiclass sme2_int_dot_array_vg2_multi<string mnemonic> {
+  def _BtoS : sme2_int_dot_array_vg24_multi_2way<0b0, 0b0, ZZ_b_mul_r, mnemonic,
+                                             "vgx2"> {
+    bits<4> Zm;
+    bits<4> Zn;
+    let Inst{20-17} = Zm;
+    let Inst{16}    = 0b0;
+    let Inst{9-6}   = Zn;
+  }
+
+  def : InstAlias<mnemonic # "\t$ZAda[$Rv, $imm3], $Zn, $Zm",
+        (!cast<Instruction>(NAME # _BtoS) MatrixOp32:$ZAda, MatrixIndexGPR32Op8_11:$Rv, sme_elm_idx0_7:$imm3, ZZ_b_mul_r:$Zn, ZZ_b_mul_r:$Zm), 0>;
+
+}
+
+// SME2 multi two-way dot product four registers
+
+multiclass sme2_int_dot_array_vg4_multi_2way<string mnemonic, bit u> {
+  def _HtoS : sme2_int_dot_array_vg24_multi_2way<0b1, u, ZZZZ_h_mul_r, mnemonic,
+                                              "vgx4"> {
+    bits<3> Zm;
+    bits<3> Zn;
+    let Inst{20-18} = Zm;
+    let Inst{17-16} = 0b01;
+    let Inst{9-7}   = Zn;
+    let Inst{6}     = 0b0;
+  }
+
+  def : InstAlias<mnemonic # "\t$ZAda[$Rv, $imm3], $Zn, $Zm",
+        (!cast<Instruction>(NAME # _HtoS) MatrixOp32:$ZAda, MatrixIndexGPR32Op8_11:$Rv, sme_elm_idx0_7:$imm3, ZZZZ_h_mul_r:$Zn, ZZZZ_h_mul_r:$Zm), 0>;
+}
+
+multiclass sme2_int_dot_array_vg4_multi<string mnemonic> {
+  def _BtoS : sme2_int_dot_array_vg24_multi_2way<0b0, 0b0, ZZZZ_b_mul_r, mnemonic,
+                                              "vgx4"> {
+    bits<3> Zm;
+    bits<3> Zn;
+    let Inst{20-18} = Zm;
+    let Inst{17-16} = 0b01;
+    let Inst{9-7}   = Zn;
+    let Inst{6}     = 0b0;
+  }
+
+  def : InstAlias<mnemonic # "\t$ZAda[$Rv, $imm3], $Zn, $Zm",
+        (!cast<Instruction>(NAME # _BtoS) MatrixOp32:$ZAda, MatrixIndexGPR32Op8_11:$Rv, sme_elm_idx0_7:$imm3, ZZZZ_b_mul_r:$Zn, ZZZZ_b_mul_r:$Zm), 0>;
+}
+
+

llvm/test/MC/AArch64/SME2/sdot.s

 // RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+sme2,+sme-i64 < %s \
 // RUN:        | FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
 // RUN: not llvm-mc -triple=aarch64 -show-encoding < %s 2>&1 \
 // RUN:        | FileCheck %s --check-prefix=CHECK-ERROR
 // RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+sme2,+sme-i64 < %s \
 // RUN:        | llvm-objdump -d --mattr=+sme2,+sme-i64 - | FileCheck %s --check-prefix=CHECK-INST
 // RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+sme2,+sme-i64 < %s \
 // RUN:        | llvm-objdump -d - | FileCheck %s --check-prefix=CHECK-UNKNOWN
 // RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+sme2,+sme-i64 < %s \
 // RUN:        | sed '/.text/d' | sed 's/.*encoding: //g' \
 // RUN:        | llvm-mc -triple=aarch64 -mattr=+sme2,+sme-i64 -disassemble -show-encoding \
 // RUN:        | FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
 
 
+sdot    za.s[w8, 0, vgx2], {z0.h-z1.h}, z0.h  // 11000001-01100000-00010100-00001000
+// CHECK-INST: sdot    za.s[w8, 0, vgx2], { z0.h-z1.h }, z0.h
+// CHECK-ENCODING: [0x08,0x14,0x60,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1601408 <unknown>
+
+sdot    za.s[w8, 0], {z0.h-z1.h}, z0.h  // 11000001-01100000-00010100-00001000
+// CHECK-INST: sdot    za.s[w8, 0, vgx2], { z0.h-z1.h }, z0.h
+// CHECK-ENCODING: [0x08,0x14,0x60,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1601408 <unknown>
+
+sdot    za.s[w10, 5, vgx2], {z10.h-z11.h}, z5.h  // 11000001-01100101-01010101-01001101
+// CHECK-INST: sdot    za.s[w10, 5, vgx2], { z10.h-z11.h }, z5.h
+// CHECK-ENCODING: [0x4d,0x55,0x65,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c165554d <unknown>
+
+sdot    za.s[w10, 5], {z10.h-z11.h}, z5.h  // 11000001-01100101-01010101-01001101
+// CHECK-INST: sdot    za.s[w10, 5, vgx2], { z10.h-z11.h }, z5.h
+// CHECK-ENCODING: [0x4d,0x55,0x65,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c165554d <unknown>
+
+sdot    za.s[w11, 7, vgx2], {z13.h-z14.h}, z8.h  // 11000001-01101000-01110101-10101111
+// CHECK-INST: sdot    za.s[w11, 7, vgx2], { z13.h-z14.h }, z8.h
+// CHECK-ENCODING: [0xaf,0x75,0x68,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16875af <unknown>
+
+sdot    za.s[w11, 7], {z13.h-z14.h}, z8.h  // 11000001-01101000-01110101-10101111
+// CHECK-INST: sdot    za.s[w11, 7, vgx2], { z13.h-z14.h }, z8.h
+// CHECK-ENCODING: [0xaf,0x75,0x68,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16875af <unknown>
+
+sdot    za.s[w11, 7, vgx2], {z31.h-z0.h}, z15.h  // 11000001-01101111-01110111-11101111
+// CHECK-INST: sdot    za.s[w11, 7, vgx2], { z31.h-z0.h }, z15.h
+// CHECK-ENCODING: [0xef,0x77,0x6f,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16f77ef <unknown>
+
+sdot    za.s[w11, 7], {z31.h-z0.h}, z15.h  // 11000001-01101111-01110111-11101111
+// CHECK-INST: sdot    za.s[w11, 7, vgx2], { z31.h-z0.h }, z15.h
+// CHECK-ENCODING: [0xef,0x77,0x6f,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16f77ef <unknown>
+
+sdot    za.s[w8, 5, vgx2], {z17.h-z18.h}, z0.h  // 11000001-01100000-00010110-00101101
+// CHECK-INST: sdot    za.s[w8, 5, vgx2], { z17.h-z18.h }, z0.h
+// CHECK-ENCODING: [0x2d,0x16,0x60,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c160162d <unknown>
+
+sdot    za.s[w8, 5], {z17.h-z18.h}, z0.h  // 11000001-01100000-00010110-00101101
+// CHECK-INST: sdot    za.s[w8, 5, vgx2], { z17.h-z18.h }, z0.h
+// CHECK-ENCODING: [0x2d,0x16,0x60,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c160162d <unknown>
+
+sdot    za.s[w8, 1, vgx2], {z1.h-z2.h}, z14.h  // 11000001-01101110-00010100-00101001
+// CHECK-INST: sdot    za.s[w8, 1, vgx2], { z1.h-z2.h }, z14.h
+// CHECK-ENCODING: [0x29,0x14,0x6e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16e1429 <unknown>
+
+sdot    za.s[w8, 1], {z1.h-z2.h}, z14.h  // 11000001-01101110-00010100-00101001
+// CHECK-INST: sdot    za.s[w8, 1, vgx2], { z1.h-z2.h }, z14.h
+// CHECK-ENCODING: [0x29,0x14,0x6e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16e1429 <unknown>
+
+sdot    za.s[w10, 0, vgx2], {z19.h-z20.h}, z4.h  // 11000001-01100100-01010110-01101000
+// CHECK-INST: sdot    za.s[w10, 0, vgx2], { z19.h-z20.h }, z4.h
+// CHECK-ENCODING: [0x68,0x56,0x64,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1645668 <unknown>
+
+sdot    za.s[w10, 0], {z19.h-z20.h}, z4.h  // 11000001-01100100-01010110-01101000
+// CHECK-INST: sdot    za.s[w10, 0, vgx2], { z19.h-z20.h }, z4.h
+// CHECK-ENCODING: [0x68,0x56,0x64,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1645668 <unknown>
+
+sdot    za.s[w8, 0, vgx2], {z12.h-z13.h}, z2.h  // 11000001-01100010-00010101-10001000
+// CHECK-INST: sdot    za.s[w8, 0, vgx2], { z12.h-z13.h }, z2.h
+// CHECK-ENCODING: [0x88,0x15,0x62,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1621588 <unknown>
+
+sdot    za.s[w8, 0], {z12.h-z13.h}, z2.h  // 11000001-01100010-00010101-10001000
+// CHECK-INST: sdot    za.s[w8, 0, vgx2], { z12.h-z13.h }, z2.h
+// CHECK-ENCODING: [0x88,0x15,0x62,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1621588 <unknown>
+
+sdot    za.s[w10, 1, vgx2], {z1.h-z2.h}, z10.h  // 11000001-01101010-01010100-00101001
+// CHECK-INST: sdot    za.s[w10, 1, vgx2], { z1.h-z2.h }, z10.h
+// CHECK-ENCODING: [0x29,0x54,0x6a,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16a5429 <unknown>
+
+sdot    za.s[w10, 1], {z1.h-z2.h}, z10.h  // 11000001-01101010-01010100-00101001
+// CHECK-INST: sdot    za.s[w10, 1, vgx2], { z1.h-z2.h }, z10.h
+// CHECK-ENCODING: [0x29,0x54,0x6a,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16a5429 <unknown>
+
+sdot    za.s[w8, 5, vgx2], {z22.h-z23.h}, z14.h  // 11000001-01101110-00010110-11001101
+// CHECK-INST: sdot    za.s[w8, 5, vgx2], { z22.h-z23.h }, z14.h
+// CHECK-ENCODING: [0xcd,0x16,0x6e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16e16cd <unknown>
+
+sdot    za.s[w8, 5], {z22.h-z23.h}, z14.h  // 11000001-01101110-00010110-11001101
+// CHECK-INST: sdot    za.s[w8, 5, vgx2], { z22.h-z23.h }, z14.h
+// CHECK-ENCODING: [0xcd,0x16,0x6e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16e16cd <unknown>
+
+sdot    za.s[w11, 2, vgx2], {z9.h-z10.h}, z1.h  // 11000001-01100001-01110101-00101010
+// CHECK-INST: sdot    za.s[w11, 2, vgx2], { z9.h-z10.h }, z1.h
+// CHECK-ENCODING: [0x2a,0x75,0x61,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c161752a <unknown>
+
+sdot    za.s[w11, 2], {z9.h-z10.h}, z1.h  // 11000001-01100001-01110101-00101010
+// CHECK-INST: sdot    za.s[w11, 2, vgx2], { z9.h-z10.h }, z1.h
+// CHECK-ENCODING: [0x2a,0x75,0x61,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c161752a <unknown>
+
+sdot    za.s[w9, 7, vgx2], {z12.h-z13.h}, z11.h  // 11000001-01101011-00110101-10001111
+// CHECK-INST: sdot    za.s[w9, 7, vgx2], { z12.h-z13.h }, z11.h
+// CHECK-ENCODING: [0x8f,0x35,0x6b,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16b358f <unknown>
+
+sdot    za.s[w9, 7], {z12.h-z13.h}, z11.h  // 11000001-01101011-00110101-10001111
+// CHECK-INST: sdot    za.s[w9, 7, vgx2], { z12.h-z13.h }, z11.h
+// CHECK-ENCODING: [0x8f,0x35,0x6b,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16b358f <unknown>
+
+
 sdot    za.s[w8, 0, vgx2], {z0.h-z1.h}, z0.h[0]  // 11000001-01010000-00010000-00000000
 // CHECK-INST: sdot    za.s[w8, 0, vgx2], { z0.h-z1.h }, z0.h[0]
 // CHECK-ENCODING: [0x00,0x10,0x50,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1501000 <unknown>
 
 sdot    za.s[w8, 0], {z0.h-z1.h}, z0.h[0]  // 11000001-01010000-00010000-00000000
 // CHECK-INST: sdot    za.s[w8, 0, vgx2], { z0.h-z1.h }, z0.h[0]

 
 sdot    za.s[w9, 7], {z12.h-z13.h}, z11.h[2]  // 11000001-01011011-00111001-10000111
 // CHECK-INST: sdot    za.s[w9, 7, vgx2], { z12.h-z13.h }, z11.h[2]
 // CHECK-ENCODING: [0x87,0x39,0x5b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c15b3987 <unknown>
 
 
+sdot    za.s[w8, 0, vgx2], {z0.h-z1.h}, {z0.h-z1.h}  // 11000001-11100000-00010100-00001000
+// CHECK-INST: sdot    za.s[w8, 0, vgx2], { z0.h-z1.h }, { z0.h-z1.h }
+// CHECK-ENCODING: [0x08,0x14,0xe0,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e01408 <unknown>
+
+sdot    za.s[w8, 0], {z0.h-z1.h}, {z0.h-z1.h}  // 11000001-11100000-00010100-00001000
+// CHECK-INST: sdot    za.s[w8, 0, vgx2], { z0.h-z1.h }, { z0.h-z1.h }
+// CHECK-ENCODING: [0x08,0x14,0xe0,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e01408 <unknown>
+
+sdot    za.s[w10, 5, vgx2], {z10.h-z11.h}, {z20.h-z21.h}  // 11000001-11110100-01010101-01001101
+// CHECK-INST: sdot    za.s[w10, 5, vgx2], { z10.h-z11.h }, { z20.h-z21.h }
+// CHECK-ENCODING: [0x4d,0x55,0xf4,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f4554d <unknown>
+
+sdot    za.s[w10, 5], {z10.h-z11.h}, {z20.h-z21.h}  // 11000001-11110100-01010101-01001101
+// CHECK-INST: sdot    za.s[w10, 5, vgx2], { z10.h-z11.h }, { z20.h-z21.h }
+// CHECK-ENCODING: [0x4d,0x55,0xf4,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f4554d <unknown>
+
+sdot    za.s[w11, 7, vgx2], {z12.h-z13.h}, {z8.h-z9.h}  // 11000001-11101000-01110101-10001111
+// CHECK-INST: sdot    za.s[w11, 7, vgx2], { z12.h-z13.h }, { z8.h-z9.h }
+// CHECK-ENCODING: [0x8f,0x75,0xe8,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e8758f <unknown>
+
+sdot    za.s[w11, 7], {z12.h-z13.h}, {z8.h-z9.h}  // 11000001-11101000-01110101-10001111
+// CHECK-INST: sdot    za.s[w11, 7, vgx2], { z12.h-z13.h }, { z8.h-z9.h }
+// CHECK-ENCODING: [0x8f,0x75,0xe8,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e8758f <unknown>
+
+sdot    za.s[w11, 7, vgx2], {z30.h-z31.h}, {z30.h-z31.h}  // 11000001-11111110-01110111-11001111
+// CHECK-INST: sdot    za.s[w11, 7, vgx2], { z30.h-z31.h }, { z30.h-z31.h }
+// CHECK-ENCODING: [0xcf,0x77,0xfe,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fe77cf <unknown>
+
+sdot    za.s[w11, 7], {z30.h-z31.h}, {z30.h-z31.h}  // 11000001-11111110-01110111-11001111
+// CHECK-INST: sdot    za.s[w11, 7, vgx2], { z30.h-z31.h }, { z30.h-z31.h }
+// CHECK-ENCODING: [0xcf,0x77,0xfe,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fe77cf <unknown>
+
+sdot    za.s[w8, 5, vgx2], {z16.h-z17.h}, {z16.h-z17.h}  // 11000001-11110000-00010110-00001101
+// CHECK-INST: sdot    za.s[w8, 5, vgx2], { z16.h-z17.h }, { z16.h-z17.h }
+// CHECK-ENCODING: [0x0d,0x16,0xf0,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f0160d <unknown>
+
+sdot    za.s[w8, 5], {z16.h-z17.h}, {z16.h-z17.h}  // 11000001-11110000-00010110-00001101
+// CHECK-INST: sdot    za.s[w8, 5, vgx2], { z16.h-z17.h }, { z16.h-z17.h }
+// CHECK-ENCODING: [0x0d,0x16,0xf0,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f0160d <unknown>
+
+sdot    za.s[w8, 1, vgx2], {z0.h-z1.h}, {z30.h-z31.h}  // 11000001-11111110-00010100-00001001
+// CHECK-INST: sdot    za.s[w8, 1, vgx2], { z0.h-z1.h }, { z30.h-z31.h }
+// CHECK-ENCODING: [0x09,0x14,0xfe,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fe1409 <unknown>
+
+sdot    za.s[w8, 1], {z0.h-z1.h}, {z30.h-z31.h}  // 11000001-11111110-00010100-00001001
+// CHECK-INST: sdot    za.s[w8, 1, vgx2], { z0.h-z1.h }, { z30.h-z31.h }
+// CHECK-ENCODING: [0x09,0x14,0xfe,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fe1409 <unknown>
+
+sdot    za.s[w10, 0, vgx2], {z18.h-z19.h}, {z20.h-z21.h}  // 11000001-11110100-01010110-01001000
+// CHECK-INST: sdot    za.s[w10, 0, vgx2], { z18.h-z19.h }, { z20.h-z21.h }
+// CHECK-ENCODING: [0x48,0x56,0xf4,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f45648 <unknown>
+
+sdot    za.s[w10, 0], {z18.h-z19.h}, {z20.h-z21.h}  // 11000001-11110100-01010110-01001000
+// CHECK-INST: sdot    za.s[w10, 0, vgx2], { z18.h-z19.h }, { z20.h-z21.h }
+// CHECK-ENCODING: [0x48,0x56,0xf4,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f45648 <unknown>
+
+sdot    za.s[w8, 0, vgx2], {z12.h-z13.h}, {z2.h-z3.h}  // 11000001-11100010-00010101-10001000
+// CHECK-INST: sdot    za.s[w8, 0, vgx2], { z12.h-z13.h }, { z2.h-z3.h }
+// CHECK-ENCODING: [0x88,0x15,0xe2,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e21588 <unknown>
+
+sdot    za.s[w8, 0], {z12.h-z13.h}, {z2.h-z3.h}  // 11000001-11100010-00010101-10001000
+// CHECK-INST: sdot    za.s[w8, 0, vgx2], { z12.h-z13.h }, { z2.h-z3.h }
+// CHECK-ENCODING: [0x88,0x15,0xe2,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e21588 <unknown>
+
+sdot    za.s[w10, 1, vgx2], {z0.h-z1.h}, {z26.h-z27.h}  // 11000001-11111010-01010100-00001001
+// CHECK-INST: sdot    za.s[w10, 1, vgx2], { z0.h-z1.h }, { z26.h-z27.h }
+// CHECK-ENCODING: [0x09,0x54,0xfa,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fa5409 <unknown>
+
+sdot    za.s[w10, 1], {z0.h-z1.h}, {z26.h-z27.h}  // 11000001-11111010-01010100-00001001
+// CHECK-INST: sdot    za.s[w10, 1, vgx2], { z0.h-z1.h }, { z26.h-z27.h }
+// CHECK-ENCODING: [0x09,0x54,0xfa,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fa5409 <unknown>
+
+sdot    za.s[w8, 5, vgx2], {z22.h-z23.h}, {z30.h-z31.h}  // 11000001-11111110-00010110-11001101
+// CHECK-INST: sdot    za.s[w8, 5, vgx2], { z22.h-z23.h }, { z30.h-z31.h }
+// CHECK-ENCODING: [0xcd,0x16,0xfe,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fe16cd <unknown>
+
+sdot    za.s[w8, 5], {z22.h-z23.h}, {z30.h-z31.h}  // 11000001-11111110-00010110-11001101
+// CHECK-INST: sdot    za.s[w8, 5, vgx2], { z22.h-z23.h }, { z30.h-z31.h }
+// CHECK-ENCODING: [0xcd,0x16,0xfe,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fe16cd <unknown>
+
+sdot    za.s[w11, 2, vgx2], {z8.h-z9.h}, {z0.h-z1.h}  // 11000001-11100000-01110101-00001010
+// CHECK-INST: sdot    za.s[w11, 2, vgx2], { z8.h-z9.h }, { z0.h-z1.h }
+// CHECK-ENCODING: [0x0a,0x75,0xe0,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e0750a <unknown>
+
+sdot    za.s[w11, 2], {z8.h-z9.h}, {z0.h-z1.h}  // 11000001-11100000-01110101-00001010
+// CHECK-INST: sdot    za.s[w11, 2, vgx2], { z8.h-z9.h }, { z0.h-z1.h }
+// CHECK-ENCODING: [0x0a,0x75,0xe0,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e0750a <unknown>
+
+sdot    za.s[w9, 7, vgx2], {z12.h-z13.h}, {z10.h-z11.h}  // 11000001-11101010-00110101-10001111
+// CHECK-INST: sdot    za.s[w9, 7, vgx2], { z12.h-z13.h }, { z10.h-z11.h }
+// CHECK-ENCODING: [0x8f,0x35,0xea,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1ea358f <unknown>
+
+sdot    za.s[w9, 7], {z12.h-z13.h}, {z10.h-z11.h}  // 11000001-11101010-00110101-10001111
+// CHECK-INST: sdot    za.s[w9, 7, vgx2], { z12.h-z13.h }, { z10.h-z11.h }
+// CHECK-ENCODING: [0x8f,0x35,0xea,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1ea358f <unknown>
+
+
 sdot    za.s[w8, 0, vgx2], {z0.b-z1.b}, z0.b[0]  // 11000001-01010000-00010000-00100000
 // CHECK-INST: sdot    za.s[w8, 0, vgx2], { z0.b-z1.b }, z0.b[0]
 // CHECK-ENCODING: [0x20,0x10,0x50,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1501020 <unknown>
 
 sdot    za.s[w8, 0], {z0.b-z1.b}, z0.b[0]  // 11000001-01010000-00010000-00100000
 // CHECK-INST: sdot    za.s[w8, 0, vgx2], { z0.b-z1.b }, z0.b[0]

 
 sdot    za.d[w9, 7], {z12.h-z13.h}, z11.h[0]  // 11000001-11011011-00100001-10001111
 // CHECK-INST: sdot    za.d[w9, 7, vgx2], { z12.h-z13.h }, z11.h[0]
 // CHECK-ENCODING: [0x8f,0x21,0xdb,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1db218f <unknown>
 
 
+sdot    za.s[w8, 0, vgx4], {z0.h-z3.h}, z0.h  // 11000001-01110000-00010100-00001000
+// CHECK-INST: sdot    za.s[w8, 0, vgx4], { z0.h-z3.h }, z0.h
+// CHECK-ENCODING: [0x08,0x14,0x70,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1701408 <unknown>
+
+sdot    za.s[w8, 0], {z0.h-z3.h}, z0.h  // 11000001-01110000-00010100-00001000
+// CHECK-INST: sdot    za.s[w8, 0, vgx4], { z0.h-z3.h }, z0.h
+// CHECK-ENCODING: [0x08,0x14,0x70,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1701408 <unknown>
+
+sdot    za.s[w10, 5, vgx4], {z10.h-z13.h}, z5.h  // 11000001-01110101-01010101-01001101
+// CHECK-INST: sdot    za.s[w10, 5, vgx4], { z10.h-z13.h }, z5.h
+// CHECK-ENCODING: [0x4d,0x55,0x75,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c175554d <unknown>
+
+sdot    za.s[w10, 5], {z10.h-z13.h}, z5.h  // 11000001-01110101-01010101-01001101
+// CHECK-INST: sdot    za.s[w10, 5, vgx4], { z10.h-z13.h }, z5.h
+// CHECK-ENCODING: [0x4d,0x55,0x75,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c175554d <unknown>
+
+sdot    za.s[w11, 7, vgx4], {z13.h-z16.h}, z8.h  // 11000001-01111000-01110101-10101111
+// CHECK-INST: sdot    za.s[w11, 7, vgx4], { z13.h-z16.h }, z8.h
+// CHECK-ENCODING: [0xaf,0x75,0x78,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17875af <unknown>
+
+sdot    za.s[w11, 7], {z13.h-z16.h}, z8.h  // 11000001-01111000-01110101-10101111
+// CHECK-INST: sdot    za.s[w11, 7, vgx4], { z13.h-z16.h }, z8.h
+// CHECK-ENCODING: [0xaf,0x75,0x78,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17875af <unknown>
+
+sdot    za.s[w11, 7, vgx4], {z31.h-z2.h}, z15.h  // 11000001-01111111-01110111-11101111
+// CHECK-INST: sdot    za.s[w11, 7, vgx4], { z31.h-z2.h }, z15.h
+// CHECK-ENCODING: [0xef,0x77,0x7f,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17f77ef <unknown>
+
+sdot    za.s[w11, 7], {z31.h-z2.h}, z15.h  // 11000001-01111111-01110111-11101111
+// CHECK-INST: sdot    za.s[w11, 7, vgx4], { z31.h-z2.h }, z15.h
+// CHECK-ENCODING: [0xef,0x77,0x7f,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17f77ef <unknown>
+
+sdot    za.s[w8, 5, vgx4], {z17.h-z20.h}, z0.h  // 11000001-01110000-00010110-00101101
+// CHECK-INST: sdot    za.s[w8, 5, vgx4], { z17.h-z20.h }, z0.h
+// CHECK-ENCODING: [0x2d,0x16,0x70,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c170162d <unknown>
+
+sdot    za.s[w8, 5], {z17.h-z20.h}, z0.h  // 11000001-01110000-00010110-00101101
+// CHECK-INST: sdot    za.s[w8, 5, vgx4], { z17.h-z20.h }, z0.h
+// CHECK-ENCODING: [0x2d,0x16,0x70,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c170162d <unknown>
+
+sdot    za.s[w8, 1, vgx4], {z1.h-z4.h}, z14.h  // 11000001-01111110-00010100-00101001
+// CHECK-INST: sdot    za.s[w8, 1, vgx4], { z1.h-z4.h }, z14.h
+// CHECK-ENCODING: [0x29,0x14,0x7e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17e1429 <unknown>
+
+sdot    za.s[w8, 1], {z1.h-z4.h}, z14.h  // 11000001-01111110-00010100-00101001
+// CHECK-INST: sdot    za.s[w8, 1, vgx4], { z1.h-z4.h }, z14.h
+// CHECK-ENCODING: [0x29,0x14,0x7e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17e1429 <unknown>
+
+sdot    za.s[w10, 0, vgx4], {z19.h-z22.h}, z4.h  // 11000001-01110100-01010110-01101000
+// CHECK-INST: sdot    za.s[w10, 0, vgx4], { z19.h-z22.h }, z4.h
+// CHECK-ENCODING: [0x68,0x56,0x74,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1745668 <unknown>
+
+sdot    za.s[w10, 0], {z19.h-z22.h}, z4.h  // 11000001-01110100-01010110-01101000
+// CHECK-INST: sdot    za.s[w10, 0, vgx4], { z19.h-z22.h }, z4.h
+// CHECK-ENCODING: [0x68,0x56,0x74,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1745668 <unknown>
+
+sdot    za.s[w8, 0, vgx4], {z12.h-z15.h}, z2.h  // 11000001-01110010-00010101-10001000
+// CHECK-INST: sdot    za.s[w8, 0, vgx4], { z12.h-z15.h }, z2.h
+// CHECK-ENCODING: [0x88,0x15,0x72,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1721588 <unknown>
+
+sdot    za.s[w8, 0], {z12.h-z15.h}, z2.h  // 11000001-01110010-00010101-10001000
+// CHECK-INST: sdot    za.s[w8, 0, vgx4], { z12.h-z15.h }, z2.h
+// CHECK-ENCODING: [0x88,0x15,0x72,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1721588 <unknown>
+
+sdot    za.s[w10, 1, vgx4], {z1.h-z4.h}, z10.h  // 11000001-01111010-01010100-00101001
+// CHECK-INST: sdot    za.s[w10, 1, vgx4], { z1.h-z4.h }, z10.h
+// CHECK-ENCODING: [0x29,0x54,0x7a,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17a5429 <unknown>
+
+sdot    za.s[w10, 1], {z1.h-z4.h}, z10.h  // 11000001-01111010-01010100-00101001
+// CHECK-INST: sdot    za.s[w10, 1, vgx4], { z1.h-z4.h }, z10.h
+// CHECK-ENCODING: [0x29,0x54,0x7a,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17a5429 <unknown>
+
+sdot    za.s[w8, 5, vgx4], {z22.h-z25.h}, z14.h  // 11000001-01111110-00010110-11001101
+// CHECK-INST: sdot    za.s[w8, 5, vgx4], { z22.h-z25.h }, z14.h
+// CHECK-ENCODING: [0xcd,0x16,0x7e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17e16cd <unknown>
+
+sdot    za.s[w8, 5], {z22.h-z25.h}, z14.h  // 11000001-01111110-00010110-11001101
+// CHECK-INST: sdot    za.s[w8, 5, vgx4], { z22.h-z25.h }, z14.h
+// CHECK-ENCODING: [0xcd,0x16,0x7e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17e16cd <unknown>
+
+sdot    za.s[w11, 2, vgx4], {z9.h-z12.h}, z1.h  // 11000001-01110001-01110101-00101010
+// CHECK-INST: sdot    za.s[w11, 2, vgx4], { z9.h-z12.h }, z1.h
+// CHECK-ENCODING: [0x2a,0x75,0x71,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c171752a <unknown>
+
+sdot    za.s[w11, 2], {z9.h-z12.h}, z1.h  // 11000001-01110001-01110101-00101010
+// CHECK-INST: sdot    za.s[w11, 2, vgx4], { z9.h-z12.h }, z1.h
+// CHECK-ENCODING: [0x2a,0x75,0x71,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c171752a <unknown>
+
+sdot    za.s[w9, 7, vgx4], {z12.h-z15.h}, z11.h  // 11000001-01111011-00110101-10001111
+// CHECK-INST: sdot    za.s[w9, 7, vgx4], { z12.h-z15.h }, z11.h
+// CHECK-ENCODING: [0x8f,0x35,0x7b,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17b358f <unknown>
+
+sdot    za.s[w9, 7], {z12.h-z15.h}, z11.h  // 11000001-01111011-00110101-10001111
+// CHECK-INST: sdot    za.s[w9, 7, vgx4], { z12.h-z15.h }, z11.h
+// CHECK-ENCODING: [0x8f,0x35,0x7b,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17b358f <unknown>
+
+
 sdot    za.s[w8, 0, vgx4], {z0.h-z3.h}, z0.h[0]  // 11000001-01010000-10010000-00000000
 // CHECK-INST: sdot    za.s[w8, 0, vgx4], { z0.h-z3.h }, z0.h[0]
 // CHECK-ENCODING: [0x00,0x90,0x50,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1509000 <unknown>
 
 sdot    za.s[w8, 0], {z0.h-z3.h}, z0.h[0]  // 11000001-01010000-10010000-00000000
 // CHECK-INST: sdot    za.s[w8, 0, vgx4], { z0.h-z3.h }, z0.h[0]

 
 sdot    za.s[w9, 7], {z12.h-z15.h}, z11.h[2]  // 11000001-01011011-10111001-10000111
 // CHECK-INST: sdot    za.s[w9, 7, vgx4], { z12.h-z15.h }, z11.h[2]
 // CHECK-ENCODING: [0x87,0xb9,0x5b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c15bb987 <unknown>
 
 
+sdot    za.s[w8, 0, vgx4], {z0.h-z3.h}, {z0.h-z3.h}  // 11000001-11100001-00010100-00001000
+// CHECK-INST: sdot    za.s[w8, 0, vgx4], { z0.h-z3.h }, { z0.h-z3.h }
+// CHECK-ENCODING: [0x08,0x14,0xe1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e11408 <unknown>
+
+sdot    za.s[w8, 0], {z0.h-z3.h}, {z0.h-z3.h}  // 11000001-11100001-00010100-00001000
+// CHECK-INST: sdot    za.s[w8, 0, vgx4], { z0.h-z3.h }, { z0.h-z3.h }
+// CHECK-ENCODING: [0x08,0x14,0xe1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e11408 <unknown>
+
+sdot    za.s[w10, 5, vgx4], {z8.h-z11.h}, {z20.h-z23.h}  // 11000001-11110101-01010101-00001101
+// CHECK-INST: sdot    za.s[w10, 5, vgx4], { z8.h-z11.h }, { z20.h-z23.h }
+// CHECK-ENCODING: [0x0d,0x55,0xf5,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f5550d <unknown>
+
+sdot    za.s[w10, 5], {z8.h-z11.h}, {z20.h-z23.h}  // 11000001-11110101-01010101-00001101
+// CHECK-INST: sdot    za.s[w10, 5, vgx4], { z8.h-z11.h }, { z20.h-z23.h }
+// CHECK-ENCODING: [0x0d,0x55,0xf5,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f5550d <unknown>
+
+sdot    za.s[w11, 7, vgx4], {z12.h-z15.h}, {z8.h-z11.h}  // 11000001-11101001-01110101-10001111
+// CHECK-INST: sdot    za.s[w11, 7, vgx4], { z12.h-z15.h }, { z8.h-z11.h }
+// CHECK-ENCODING: [0x8f,0x75,0xe9,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e9758f <unknown>
+
+sdot    za.s[w11, 7], {z12.h-z15.h}, {z8.h-z11.h}  // 11000001-11101001-01110101-10001111
+// CHECK-INST: sdot    za.s[w11, 7, vgx4], { z12.h-z15.h }, { z8.h-z11.h }
+// CHECK-ENCODING: [0x8f,0x75,0xe9,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e9758f <unknown>
+
+sdot    za.s[w11, 7, vgx4], {z28.h-z31.h}, {z28.h-z31.h}  // 11000001-11111101-01110111-10001111
+// CHECK-INST: sdot    za.s[w11, 7, vgx4], { z28.h-z31.h }, { z28.h-z31.h }
+// CHECK-ENCODING: [0x8f,0x77,0xfd,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fd778f <unknown>
+
+sdot    za.s[w11, 7], {z28.h-z31.h}, {z28.h-z31.h}  // 11000001-11111101-01110111-10001111
+// CHECK-INST: sdot    za.s[w11, 7, vgx4], { z28.h-z31.h }, { z28.h-z31.h }
+// CHECK-ENCODING: [0x8f,0x77,0xfd,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fd778f <unknown>
+
+sdot    za.s[w8, 5, vgx4], {z16.h-z19.h}, {z16.h-z19.h}  // 11000001-11110001-00010110-00001101
+// CHECK-INST: sdot    za.s[w8, 5, vgx4], { z16.h-z19.h }, { z16.h-z19.h }
+// CHECK-ENCODING: [0x0d,0x16,0xf1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f1160d <unknown>
+
+sdot    za.s[w8, 5], {z16.h-z19.h}, {z16.h-z19.h}  // 11000001-11110001-00010110-00001101
+// CHECK-INST: sdot    za.s[w8, 5, vgx4], { z16.h-z19.h }, { z16.h-z19.h }
+// CHECK-ENCODING: [0x0d,0x16,0xf1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f1160d <unknown>
+
+sdot    za.s[w8, 1, vgx4], {z0.h-z3.h}, {z28.h-z31.h}  // 11000001-11111101-00010100-00001001
+// CHECK-INST: sdot    za.s[w8, 1, vgx4], { z0.h-z3.h }, { z28.h-z31.h }
+// CHECK-ENCODING: [0x09,0x14,0xfd,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fd1409 <unknown>
+
+sdot    za.s[w8, 1], {z0.h-z3.h}, {z28.h-z31.h}  // 11000001-11111101-00010100-00001001
+// CHECK-INST: sdot    za.s[w8, 1, vgx4], { z0.h-z3.h }, { z28.h-z31.h }
+// CHECK-ENCODING: [0x09,0x14,0xfd,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fd1409 <unknown>
+
+sdot    za.s[w10, 0, vgx4], {z16.h-z19.h}, {z20.h-z23.h}  // 11000001-11110101-01010110-00001000
+// CHECK-INST: sdot    za.s[w10, 0, vgx4], { z16.h-z19.h }, { z20.h-z23.h }
+// CHECK-ENCODING: [0x08,0x56,0xf5,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f55608 <unknown>
+
+sdot    za.s[w10, 0], {z16.h-z19.h}, {z20.h-z23.h}  // 11000001-11110101-01010110-00001000
+// CHECK-INST: sdot    za.s[w10, 0, vgx4], { z16.h-z19.h }, { z20.h-z23.h }
+// CHECK-ENCODING: [0x08,0x56,0xf5,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f55608 <unknown>
+
+sdot    za.s[w8, 0, vgx4], {z12.h-z15.h}, {z0.h-z3.h}  // 11000001-11100001-00010101-10001000
+// CHECK-INST: sdot    za.s[w8, 0, vgx4], { z12.h-z15.h }, { z0.h-z3.h }
+// CHECK-ENCODING: [0x88,0x15,0xe1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e11588 <unknown>
+
+sdot    za.s[w8, 0], {z12.h-z15.h}, {z0.h-z3.h}  // 11000001-11100001-00010101-10001000
+// CHECK-INST: sdot    za.s[w8, 0, vgx4], { z12.h-z15.h }, { z0.h-z3.h }
+// CHECK-ENCODING: [0x88,0x15,0xe1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e11588 <unknown>
+
+sdot    za.s[w10, 1, vgx4], {z0.h-z3.h}, {z24.h-z27.h}  // 11000001-11111001-01010100-00001001
+// CHECK-INST: sdot    za.s[w10, 1, vgx4], { z0.h-z3.h }, { z24.h-z27.h }
+// CHECK-ENCODING: [0x09,0x54,0xf9,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f95409 <unknown>
+
+sdot    za.s[w10, 1], {z0.h-z3.h}, {z24.h-z27.h}  // 11000001-11111001-01010100-00001001
+// CHECK-INST: sdot    za.s[w10, 1, vgx4], { z0.h-z3.h }, { z24.h-z27.h }
+// CHECK-ENCODING: [0x09,0x54,0xf9,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f95409 <unknown>
+
+sdot    za.s[w8, 5, vgx4], {z20.h-z23.h}, {z28.h-z31.h}  // 11000001-11111101-00010110-10001101
+// CHECK-INST: sdot    za.s[w8, 5, vgx4], { z20.h-z23.h }, { z28.h-z31.h }
+// CHECK-ENCODING: [0x8d,0x16,0xfd,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fd168d <unknown>
+
+sdot    za.s[w8, 5], {z20.h-z23.h}, {z28.h-z31.h}  // 11000001-11111101-00010110-10001101
+// CHECK-INST: sdot    za.s[w8, 5, vgx4], { z20.h-z23.h }, { z28.h-z31.h }
+// CHECK-ENCODING: [0x8d,0x16,0xfd,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fd168d <unknown>
+
+sdot    za.s[w11, 2, vgx4], {z8.h-z11.h}, {z0.h-z3.h}  // 11000001-11100001-01110101-00001010
+// CHECK-INST: sdot    za.s[w11, 2, vgx4], { z8.h-z11.h }, { z0.h-z3.h }
+// CHECK-ENCODING: [0x0a,0x75,0xe1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e1750a <unknown>
+
+sdot    za.s[w11, 2], {z8.h-z11.h}, {z0.h-z3.h}  // 11000001-11100001-01110101-00001010
+// CHECK-INST: sdot    za.s[w11, 2, vgx4], { z8.h-z11.h }, { z0.h-z3.h }
+// CHECK-ENCODING: [0x0a,0x75,0xe1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e1750a <unknown>
+
+sdot    za.s[w9, 7, vgx4], {z12.h-z15.h}, {z8.h-z11.h}  // 11000001-11101001-00110101-10001111
+// CHECK-INST: sdot    za.s[w9, 7, vgx4], { z12.h-z15.h }, { z8.h-z11.h }
+// CHECK-ENCODING: [0x8f,0x35,0xe9,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e9358f <unknown>
+
+sdot    za.s[w9, 7], {z12.h-z15.h}, {z8.h-z11.h}  // 11000001-11101001-00110101-10001111
+// CHECK-INST: sdot    za.s[w9, 7, vgx4], { z12.h-z15.h }, { z8.h-z11.h }
+// CHECK-ENCODING: [0x8f,0x35,0xe9,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e9358f <unknown>
+
+
 sdot    za.s[w8, 0, vgx4], {z0.b-z3.b}, z0.b[0]  // 11000001-01010000-10010000-00100000
 // CHECK-INST: sdot    za.s[w8, 0, vgx4], { z0.b-z3.b }, z0.b[0]
 // CHECK-ENCODING: [0x20,0x90,0x50,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1509020 <unknown>
 
 sdot    za.s[w8, 0], {z0.b-z3.b}, z0.b[0]  // 11000001-01010000-10010000-00100000
 // CHECK-INST: sdot    za.s[w8, 0, vgx4], { z0.b-z3.b }, z0.b[0]

 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1dba18f <unknown>
 
 sdot    za.d[w9, 7], {z12.h-z15.h}, z11.h[0]  // 11000001-11011011-10100001-10001111
 // CHECK-INST: sdot    za.d[w9, 7, vgx4], { z12.h-z15.h }, z11.h[0]
 // CHECK-ENCODING: [0x8f,0xa1,0xdb,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1dba18f <unknown>
+
+

llvm/test/MC/AArch64/SME2/sudot.s

 // RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+sme2 < %s \
 // RUN:        | FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
 // RUN: not llvm-mc -triple=aarch64 -show-encoding < %s 2>&1 \
 // RUN:        | FileCheck %s --check-prefix=CHECK-ERROR
 // RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+sme2 < %s \
 // RUN:        | llvm-objdump -d --mattr=+sme2 - | FileCheck %s --check-prefix=CHECK-INST
 // RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+sme2 < %s \
 // RUN:        | llvm-objdump -d - | FileCheck %s --check-prefix=CHECK-UNKNOWN
 // RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+sme2 < %s \
 // RUN:        | sed '/.text/d' | sed 's/.*encoding: //g' \
 // RUN:        | llvm-mc -triple=aarch64 -mattr=+sme2 -disassemble -show-encoding \
 // RUN:        | FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
 
 
+sudot   za.s[w8, 0, vgx2], {z0.b-z1.b}, z0.b  // 11000001-00100000-00010100-00011000
+// CHECK-INST: sudot   za.s[w8, 0, vgx2], { z0.b-z1.b }, z0.b
+// CHECK-ENCODING: [0x18,0x14,0x20,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1201418 <unknown>
+
+sudot   za.s[w8, 0], {z0.b-z1.b}, z0.b  // 11000001-00100000-00010100-00011000
+// CHECK-INST: sudot   za.s[w8, 0, vgx2], { z0.b-z1.b }, z0.b
+// CHECK-ENCODING: [0x18,0x14,0x20,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1201418 <unknown>
+
+sudot   za.s[w10, 5, vgx2], {z10.b-z11.b}, z5.b  // 11000001-00100101-01010101-01011101
+// CHECK-INST: sudot   za.s[w10, 5, vgx2], { z10.b-z11.b }, z5.b
+// CHECK-ENCODING: [0x5d,0x55,0x25,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c125555d <unknown>
+
+sudot   za.s[w10, 5], {z10.b-z11.b}, z5.b  // 11000001-00100101-01010101-01011101
+// CHECK-INST: sudot   za.s[w10, 5, vgx2], { z10.b-z11.b }, z5.b
+// CHECK-ENCODING: [0x5d,0x55,0x25,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c125555d <unknown>
+
+sudot   za.s[w11, 7, vgx2], {z13.b-z14.b}, z8.b  // 11000001-00101000-01110101-10111111
+// CHECK-INST: sudot   za.s[w11, 7, vgx2], { z13.b-z14.b }, z8.b
+// CHECK-ENCODING: [0xbf,0x75,0x28,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12875bf <unknown>
+
+sudot   za.s[w11, 7], {z13.b-z14.b}, z8.b  // 11000001-00101000-01110101-10111111
+// CHECK-INST: sudot   za.s[w11, 7, vgx2], { z13.b-z14.b }, z8.b
+// CHECK-ENCODING: [0xbf,0x75,0x28,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12875bf <unknown>
+
+sudot   za.s[w11, 7, vgx2], {z31.b-z0.b}, z15.b  // 11000001-00101111-01110111-11111111
+// CHECK-INST: sudot   za.s[w11, 7, vgx2], { z31.b-z0.b }, z15.b
+// CHECK-ENCODING: [0xff,0x77,0x2f,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12f77ff <unknown>
+
+sudot   za.s[w11, 7], {z31.b-z0.b}, z15.b  // 11000001-00101111-01110111-11111111
+// CHECK-INST: sudot   za.s[w11, 7, vgx2], { z31.b-z0.b }, z15.b
+// CHECK-ENCODING: [0xff,0x77,0x2f,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12f77ff <unknown>
+
+sudot   za.s[w8, 5, vgx2], {z17.b-z18.b}, z0.b  // 11000001-00100000-00010110-00111101
+// CHECK-INST: sudot   za.s[w8, 5, vgx2], { z17.b-z18.b }, z0.b
+// CHECK-ENCODING: [0x3d,0x16,0x20,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c120163d <unknown>
+
+sudot   za.s[w8, 5], {z17.b-z18.b}, z0.b  // 11000001-00100000-00010110-00111101
+// CHECK-INST: sudot   za.s[w8, 5, vgx2], { z17.b-z18.b }, z0.b
+// CHECK-ENCODING: [0x3d,0x16,0x20,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c120163d <unknown>
+
+sudot   za.s[w8, 1, vgx2], {z1.b-z2.b}, z14.b  // 11000001-00101110-00010100-00111001
+// CHECK-INST: sudot   za.s[w8, 1, vgx2], { z1.b-z2.b }, z14.b
+// CHECK-ENCODING: [0x39,0x14,0x2e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12e1439 <unknown>
+
+sudot   za.s[w8, 1], {z1.b-z2.b}, z14.b  // 11000001-00101110-00010100-00111001
+// CHECK-INST: sudot   za.s[w8, 1, vgx2], { z1.b-z2.b }, z14.b
+// CHECK-ENCODING: [0x39,0x14,0x2e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12e1439 <unknown>
+
+sudot   za.s[w10, 0, vgx2], {z19.b-z20.b}, z4.b  // 11000001-00100100-01010110-01111000
+// CHECK-INST: sudot   za.s[w10, 0, vgx2], { z19.b-z20.b }, z4.b
+// CHECK-ENCODING: [0x78,0x56,0x24,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1245678 <unknown>
+
+sudot   za.s[w10, 0], {z19.b-z20.b}, z4.b  // 11000001-00100100-01010110-01111000
+// CHECK-INST: sudot   za.s[w10, 0, vgx2], { z19.b-z20.b }, z4.b
+// CHECK-ENCODING: [0x78,0x56,0x24,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1245678 <unknown>
+
+sudot   za.s[w8, 0, vgx2], {z12.b-z13.b}, z2.b  // 11000001-00100010-00010101-10011000
+// CHECK-INST: sudot   za.s[w8, 0, vgx2], { z12.b-z13.b }, z2.b
+// CHECK-ENCODING: [0x98,0x15,0x22,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1221598 <unknown>
+
+sudot   za.s[w8, 0], {z12.b-z13.b}, z2.b  // 11000001-00100010-00010101-10011000
+// CHECK-INST: sudot   za.s[w8, 0, vgx2], { z12.b-z13.b }, z2.b
+// CHECK-ENCODING: [0x98,0x15,0x22,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1221598 <unknown>
+
+sudot   za.s[w10, 1, vgx2], {z1.b-z2.b}, z10.b  // 11000001-00101010-01010100-00111001
+// CHECK-INST: sudot   za.s[w10, 1, vgx2], { z1.b-z2.b }, z10.b
+// CHECK-ENCODING: [0x39,0x54,0x2a,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12a5439 <unknown>
+
+sudot   za.s[w10, 1], {z1.b-z2.b}, z10.b  // 11000001-00101010-01010100-00111001
+// CHECK-INST: sudot   za.s[w10, 1, vgx2], { z1.b-z2.b }, z10.b
+// CHECK-ENCODING: [0x39,0x54,0x2a,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12a5439 <unknown>
+
+sudot   za.s[w8, 5, vgx2], {z22.b-z23.b}, z14.b  // 11000001-00101110-00010110-11011101
+// CHECK-INST: sudot   za.s[w8, 5, vgx2], { z22.b-z23.b }, z14.b
+// CHECK-ENCODING: [0xdd,0x16,0x2e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12e16dd <unknown>
+
+sudot   za.s[w8, 5], {z22.b-z23.b}, z14.b  // 11000001-00101110-00010110-11011101
+// CHECK-INST: sudot   za.s[w8, 5, vgx2], { z22.b-z23.b }, z14.b
+// CHECK-ENCODING: [0xdd,0x16,0x2e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12e16dd <unknown>
+
+sudot   za.s[w11, 2, vgx2], {z9.b-z10.b}, z1.b  // 11000001-00100001-01110101-00111010
+// CHECK-INST: sudot   za.s[w11, 2, vgx2], { z9.b-z10.b }, z1.b
+// CHECK-ENCODING: [0x3a,0x75,0x21,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c121753a <unknown>
+
+sudot   za.s[w11, 2], {z9.b-z10.b}, z1.b  // 11000001-00100001-01110101-00111010
+// CHECK-INST: sudot   za.s[w11, 2, vgx2], { z9.b-z10.b }, z1.b
+// CHECK-ENCODING: [0x3a,0x75,0x21,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c121753a <unknown>
+
+sudot   za.s[w9, 7, vgx2], {z12.b-z13.b}, z11.b  // 11000001-00101011-00110101-10011111
+// CHECK-INST: sudot   za.s[w9, 7, vgx2], { z12.b-z13.b }, z11.b
+// CHECK-ENCODING: [0x9f,0x35,0x2b,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12b359f <unknown>
+
+sudot   za.s[w9, 7], {z12.b-z13.b}, z11.b  // 11000001-00101011-00110101-10011111
+// CHECK-INST: sudot   za.s[w9, 7, vgx2], { z12.b-z13.b }, z11.b
+// CHECK-ENCODING: [0x9f,0x35,0x2b,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12b359f <unknown>
+
+
 sudot   za.s[w8, 0, vgx2], {z0.b-z1.b}, z0.b[0]  // 11000001-01010000-00010000-00111000
 // CHECK-INST: sudot   za.s[w8, 0, vgx2], { z0.b-z1.b }, z0.b[0]
 // CHECK-ENCODING: [0x38,0x10,0x50,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1501038 <unknown>
 
 sudot   za.s[w8, 0], {z0.b-z1.b}, z0.b[0]  // 11000001-01010000-00010000-00111000
 // CHECK-INST: sudot   za.s[w8, 0, vgx2], { z0.b-z1.b }, z0.b[0]

 
 sudot   za.s[w9, 7], {z12.b-z13.b}, z11.b[2]  // 11000001-01011011-00111001-10111111
 // CHECK-INST: sudot   za.s[w9, 7, vgx2], { z12.b-z13.b }, z11.b[2]
 // CHECK-ENCODING: [0xbf,0x39,0x5b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c15b39bf <unknown>
 
 
+sudot   za.s[w8, 0, vgx4], {z0.b-z3.b}, z0.b  // 11000001-00110000-00010100-00011000
+// CHECK-INST: sudot   za.s[w8, 0, vgx4], { z0.b-z3.b }, z0.b
+// CHECK-ENCODING: [0x18,0x14,0x30,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1301418 <unknown>
+
+sudot   za.s[w8, 0], {z0.b-z3.b}, z0.b  // 11000001-00110000-00010100-00011000
+// CHECK-INST: sudot   za.s[w8, 0, vgx4], { z0.b-z3.b }, z0.b
+// CHECK-ENCODING: [0x18,0x14,0x30,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1301418 <unknown>
+
+sudot   za.s[w10, 5, vgx4], {z10.b-z13.b}, z5.b  // 11000001-00110101-01010101-01011101
+// CHECK-INST: sudot   za.s[w10, 5, vgx4], { z10.b-z13.b }, z5.b
+// CHECK-ENCODING: [0x5d,0x55,0x35,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c135555d <unknown>
+
+sudot   za.s[w10, 5], {z10.b-z13.b}, z5.b  // 11000001-00110101-01010101-01011101
+// CHECK-INST: sudot   za.s[w10, 5, vgx4], { z10.b-z13.b }, z5.b
+// CHECK-ENCODING: [0x5d,0x55,0x35,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c135555d <unknown>
+
+sudot   za.s[w11, 7, vgx4], {z13.b-z16.b}, z8.b  // 11000001-00111000-01110101-10111111
+// CHECK-INST: sudot   za.s[w11, 7, vgx4], { z13.b-z16.b }, z8.b
+// CHECK-ENCODING: [0xbf,0x75,0x38,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13875bf <unknown>
+
+sudot   za.s[w11, 7], {z13.b-z16.b}, z8.b  // 11000001-00111000-01110101-10111111
+// CHECK-INST: sudot   za.s[w11, 7, vgx4], { z13.b-z16.b }, z8.b
+// CHECK-ENCODING: [0xbf,0x75,0x38,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13875bf <unknown>
+
+sudot   za.s[w11, 7, vgx4], {z31.b-z2.b}, z15.b  // 11000001-00111111-01110111-11111111
+// CHECK-INST: sudot   za.s[w11, 7, vgx4], { z31.b-z2.b }, z15.b
+// CHECK-ENCODING: [0xff,0x77,0x3f,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13f77ff <unknown>
+
+sudot   za.s[w11, 7], {z31.b-z2.b}, z15.b  // 11000001-00111111-01110111-11111111
+// CHECK-INST: sudot   za.s[w11, 7, vgx4], { z31.b-z2.b }, z15.b
+// CHECK-ENCODING: [0xff,0x77,0x3f,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13f77ff <unknown>
+
+sudot   za.s[w8, 5, vgx4], {z17.b-z20.b}, z0.b  // 11000001-00110000-00010110-00111101
+// CHECK-INST: sudot   za.s[w8, 5, vgx4], { z17.b-z20.b }, z0.b
+// CHECK-ENCODING: [0x3d,0x16,0x30,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c130163d <unknown>
+
+sudot   za.s[w8, 5], {z17.b-z20.b}, z0.b  // 11000001-00110000-00010110-00111101
+// CHECK-INST: sudot   za.s[w8, 5, vgx4], { z17.b-z20.b }, z0.b
+// CHECK-ENCODING: [0x3d,0x16,0x30,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c130163d <unknown>
+
+sudot   za.s[w8, 1, vgx4], {z1.b-z4.b}, z14.b  // 11000001-00111110-00010100-00111001
+// CHECK-INST: sudot   za.s[w8, 1, vgx4], { z1.b-z4.b }, z14.b
+// CHECK-ENCODING: [0x39,0x14,0x3e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13e1439 <unknown>
+
+sudot   za.s[w8, 1], {z1.b-z4.b}, z14.b  // 11000001-00111110-00010100-00111001
+// CHECK-INST: sudot   za.s[w8, 1, vgx4], { z1.b-z4.b }, z14.b
+// CHECK-ENCODING: [0x39,0x14,0x3e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13e1439 <unknown>
+
+sudot   za.s[w10, 0, vgx4], {z19.b-z22.b}, z4.b  // 11000001-00110100-01010110-01111000
+// CHECK-INST: sudot   za.s[w10, 0, vgx4], { z19.b-z22.b }, z4.b
+// CHECK-ENCODING: [0x78,0x56,0x34,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1345678 <unknown>
+
+sudot   za.s[w10, 0], {z19.b-z22.b}, z4.b  // 11000001-00110100-01010110-01111000
+// CHECK-INST: sudot   za.s[w10, 0, vgx4], { z19.b-z22.b }, z4.b
+// CHECK-ENCODING: [0x78,0x56,0x34,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1345678 <unknown>
+
+sudot   za.s[w8, 0, vgx4], {z12.b-z15.b}, z2.b  // 11000001-00110010-00010101-10011000
+// CHECK-INST: sudot   za.s[w8, 0, vgx4], { z12.b-z15.b }, z2.b
+// CHECK-ENCODING: [0x98,0x15,0x32,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1321598 <unknown>
+
+sudot   za.s[w8, 0], {z12.b-z15.b}, z2.b  // 11000001-00110010-00010101-10011000
+// CHECK-INST: sudot   za.s[w8, 0, vgx4], { z12.b-z15.b }, z2.b
+// CHECK-ENCODING: [0x98,0x15,0x32,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1321598 <unknown>
+
+sudot   za.s[w10, 1, vgx4], {z1.b-z4.b}, z10.b  // 11000001-00111010-01010100-00111001
+// CHECK-INST: sudot   za.s[w10, 1, vgx4], { z1.b-z4.b }, z10.b
+// CHECK-ENCODING: [0x39,0x54,0x3a,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13a5439 <unknown>
+
+sudot   za.s[w10, 1], {z1.b-z4.b}, z10.b  // 11000001-00111010-01010100-00111001
+// CHECK-INST: sudot   za.s[w10, 1, vgx4], { z1.b-z4.b }, z10.b
+// CHECK-ENCODING: [0x39,0x54,0x3a,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13a5439 <unknown>
+
+sudot   za.s[w8, 5, vgx4], {z22.b-z25.b}, z14.b  // 11000001-00111110-00010110-11011101
+// CHECK-INST: sudot   za.s[w8, 5, vgx4], { z22.b-z25.b }, z14.b
+// CHECK-ENCODING: [0xdd,0x16,0x3e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13e16dd <unknown>
+
+sudot   za.s[w8, 5], {z22.b-z25.b}, z14.b  // 11000001-00111110-00010110-11011101
+// CHECK-INST: sudot   za.s[w8, 5, vgx4], { z22.b-z25.b }, z14.b
+// CHECK-ENCODING: [0xdd,0x16,0x3e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13e16dd <unknown>
+
+sudot   za.s[w11, 2, vgx4], {z9.b-z12.b}, z1.b  // 11000001-00110001-01110101-00111010
+// CHECK-INST: sudot   za.s[w11, 2, vgx4], { z9.b-z12.b }, z1.b
+// CHECK-ENCODING: [0x3a,0x75,0x31,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c131753a <unknown>
+
+sudot   za.s[w11, 2], {z9.b-z12.b}, z1.b  // 11000001-00110001-01110101-00111010
+// CHECK-INST: sudot   za.s[w11, 2, vgx4], { z9.b-z12.b }, z1.b
+// CHECK-ENCODING: [0x3a,0x75,0x31,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c131753a <unknown>
+
+sudot   za.s[w9, 7, vgx4], {z12.b-z15.b}, z11.b  // 11000001-00111011-00110101-10011111
+// CHECK-INST: sudot   za.s[w9, 7, vgx4], { z12.b-z15.b }, z11.b
+// CHECK-ENCODING: [0x9f,0x35,0x3b,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13b359f <unknown>
+
+sudot   za.s[w9, 7], {z12.b-z15.b}, z11.b  // 11000001-00111011-00110101-10011111
+// CHECK-INST: sudot   za.s[w9, 7, vgx4], { z12.b-z15.b }, z11.b
+// CHECK-ENCODING: [0x9f,0x35,0x3b,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13b359f <unknown>
+
+
 sudot   za.s[w8, 0, vgx4], {z0.b-z3.b}, z0.b[0]  // 11000001-01010000-10010000-00111000
 // CHECK-INST: sudot   za.s[w8, 0, vgx4], { z0.b-z3.b }, z0.b[0]
 // CHECK-ENCODING: [0x38,0x90,0x50,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1509038 <unknown>
 
 sudot   za.s[w8, 0], {z0.b-z3.b}, z0.b[0]  // 11000001-01010000-10010000-00111000
 // CHECK-INST: sudot   za.s[w8, 0, vgx4], { z0.b-z3.b }, z0.b[0]

llvm/test/MC/AArch64/SME2/udot.s

 // RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+sme2,+sme-i64 < %s \
 // RUN:        | FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
 // RUN: not llvm-mc -triple=aarch64 -show-encoding < %s 2>&1 \
 // RUN:        | FileCheck %s --check-prefix=CHECK-ERROR
 // RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+sme2,+sme-i64 < %s \
 // RUN:        | llvm-objdump -d --mattr=+sme2,+sme-i64 - | FileCheck %s --check-prefix=CHECK-INST
 // RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+sme2,+sme-i64 < %s \
 // RUN:        | llvm-objdump -d - | FileCheck %s --check-prefix=CHECK-UNKNOWN
 // RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+sme2,+sme-i64 < %s \
 // RUN:        | sed '/.text/d' | sed 's/.*encoding: //g' \
 // RUN:        | llvm-mc -triple=aarch64 -mattr=+sme2,+sme-i64 -disassemble -show-encoding \
 // RUN:        | FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
 
 
+udot    za.s[w8, 0, vgx2], {z0.h-z1.h}, z0.h  // 11000001-01100000-00010100-00011000
+// CHECK-INST: udot    za.s[w8, 0, vgx2], { z0.h-z1.h }, z0.h
+// CHECK-ENCODING: [0x18,0x14,0x60,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1601418 <unknown>
+
+udot    za.s[w8, 0], {z0.h-z1.h}, z0.h  // 11000001-01100000-00010100-00011000
+// CHECK-INST: udot    za.s[w8, 0, vgx2], { z0.h-z1.h }, z0.h
+// CHECK-ENCODING: [0x18,0x14,0x60,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1601418 <unknown>
+
+udot    za.s[w10, 5, vgx2], {z10.h-z11.h}, z5.h  // 11000001-01100101-01010101-01011101
+// CHECK-INST: udot    za.s[w10, 5, vgx2], { z10.h-z11.h }, z5.h
+// CHECK-ENCODING: [0x5d,0x55,0x65,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c165555d <unknown>
+
+udot    za.s[w10, 5], {z10.h-z11.h}, z5.h  // 11000001-01100101-01010101-01011101
+// CHECK-INST: udot    za.s[w10, 5, vgx2], { z10.h-z11.h }, z5.h
+// CHECK-ENCODING: [0x5d,0x55,0x65,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c165555d <unknown>
+
+udot    za.s[w11, 7, vgx2], {z13.h-z14.h}, z8.h  // 11000001-01101000-01110101-10111111
+// CHECK-INST: udot    za.s[w11, 7, vgx2], { z13.h-z14.h }, z8.h
+// CHECK-ENCODING: [0xbf,0x75,0x68,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16875bf <unknown>
+
+udot    za.s[w11, 7], {z13.h-z14.h}, z8.h  // 11000001-01101000-01110101-10111111
+// CHECK-INST: udot    za.s[w11, 7, vgx2], { z13.h-z14.h }, z8.h
+// CHECK-ENCODING: [0xbf,0x75,0x68,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16875bf <unknown>
+
+udot    za.s[w11, 7, vgx2], {z31.h-z0.h}, z15.h  // 11000001-01101111-01110111-11111111
+// CHECK-INST: udot    za.s[w11, 7, vgx2], { z31.h-z0.h }, z15.h
+// CHECK-ENCODING: [0xff,0x77,0x6f,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16f77ff <unknown>
+
+udot    za.s[w11, 7], {z31.h-z0.h}, z15.h  // 11000001-01101111-01110111-11111111
+// CHECK-INST: udot    za.s[w11, 7, vgx2], { z31.h-z0.h }, z15.h
+// CHECK-ENCODING: [0xff,0x77,0x6f,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16f77ff <unknown>
+
+udot    za.s[w8, 5, vgx2], {z17.h-z18.h}, z0.h  // 11000001-01100000-00010110-00111101
+// CHECK-INST: udot    za.s[w8, 5, vgx2], { z17.h-z18.h }, z0.h
+// CHECK-ENCODING: [0x3d,0x16,0x60,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c160163d <unknown>
+
+udot    za.s[w8, 5], {z17.h-z18.h}, z0.h  // 11000001-01100000-00010110-00111101
+// CHECK-INST: udot    za.s[w8, 5, vgx2], { z17.h-z18.h }, z0.h
+// CHECK-ENCODING: [0x3d,0x16,0x60,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c160163d <unknown>
+
+udot    za.s[w8, 1, vgx2], {z1.h-z2.h}, z14.h  // 11000001-01101110-00010100-00111001
+// CHECK-INST: udot    za.s[w8, 1, vgx2], { z1.h-z2.h }, z14.h
+// CHECK-ENCODING: [0x39,0x14,0x6e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16e1439 <unknown>
+
+udot    za.s[w8, 1], {z1.h-z2.h}, z14.h  // 11000001-01101110-00010100-00111001
+// CHECK-INST: udot    za.s[w8, 1, vgx2], { z1.h-z2.h }, z14.h
+// CHECK-ENCODING: [0x39,0x14,0x6e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16e1439 <unknown>
+
+udot    za.s[w10, 0, vgx2], {z19.h-z20.h}, z4.h  // 11000001-01100100-01010110-01111000
+// CHECK-INST: udot    za.s[w10, 0, vgx2], { z19.h-z20.h }, z4.h
+// CHECK-ENCODING: [0x78,0x56,0x64,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1645678 <unknown>
+
+udot    za.s[w10, 0], {z19.h-z20.h}, z4.h  // 11000001-01100100-01010110-01111000
+// CHECK-INST: udot    za.s[w10, 0, vgx2], { z19.h-z20.h }, z4.h
+// CHECK-ENCODING: [0x78,0x56,0x64,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1645678 <unknown>
+
+udot    za.s[w8, 0, vgx2], {z12.h-z13.h}, z2.h  // 11000001-01100010-00010101-10011000
+// CHECK-INST: udot    za.s[w8, 0, vgx2], { z12.h-z13.h }, z2.h
+// CHECK-ENCODING: [0x98,0x15,0x62,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1621598 <unknown>
+
+udot    za.s[w8, 0], {z12.h-z13.h}, z2.h  // 11000001-01100010-00010101-10011000
+// CHECK-INST: udot    za.s[w8, 0, vgx2], { z12.h-z13.h }, z2.h
+// CHECK-ENCODING: [0x98,0x15,0x62,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1621598 <unknown>
+
+udot    za.s[w10, 1, vgx2], {z1.h-z2.h}, z10.h  // 11000001-01101010-01010100-00111001
+// CHECK-INST: udot    za.s[w10, 1, vgx2], { z1.h-z2.h }, z10.h
+// CHECK-ENCODING: [0x39,0x54,0x6a,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16a5439 <unknown>
+
+udot    za.s[w10, 1], {z1.h-z2.h}, z10.h  // 11000001-01101010-01010100-00111001
+// CHECK-INST: udot    za.s[w10, 1, vgx2], { z1.h-z2.h }, z10.h
+// CHECK-ENCODING: [0x39,0x54,0x6a,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16a5439 <unknown>
+
+udot    za.s[w8, 5, vgx2], {z22.h-z23.h}, z14.h  // 11000001-01101110-00010110-11011101
+// CHECK-INST: udot    za.s[w8, 5, vgx2], { z22.h-z23.h }, z14.h
+// CHECK-ENCODING: [0xdd,0x16,0x6e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16e16dd <unknown>
+
+udot    za.s[w8, 5], {z22.h-z23.h}, z14.h  // 11000001-01101110-00010110-11011101
+// CHECK-INST: udot    za.s[w8, 5, vgx2], { z22.h-z23.h }, z14.h
+// CHECK-ENCODING: [0xdd,0x16,0x6e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16e16dd <unknown>
+
+udot    za.s[w11, 2, vgx2], {z9.h-z10.h}, z1.h  // 11000001-01100001-01110101-00111010
+// CHECK-INST: udot    za.s[w11, 2, vgx2], { z9.h-z10.h }, z1.h
+// CHECK-ENCODING: [0x3a,0x75,0x61,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c161753a <unknown>
+
+udot    za.s[w11, 2], {z9.h-z10.h}, z1.h  // 11000001-01100001-01110101-00111010
+// CHECK-INST: udot    za.s[w11, 2, vgx2], { z9.h-z10.h }, z1.h
+// CHECK-ENCODING: [0x3a,0x75,0x61,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c161753a <unknown>
+
+udot    za.s[w9, 7, vgx2], {z12.h-z13.h}, z11.h  // 11000001-01101011-00110101-10011111
+// CHECK-INST: udot    za.s[w9, 7, vgx2], { z12.h-z13.h }, z11.h
+// CHECK-ENCODING: [0x9f,0x35,0x6b,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16b359f <unknown>
+
+udot    za.s[w9, 7], {z12.h-z13.h}, z11.h  // 11000001-01101011-00110101-10011111
+// CHECK-INST: udot    za.s[w9, 7, vgx2], { z12.h-z13.h }, z11.h
+// CHECK-ENCODING: [0x9f,0x35,0x6b,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c16b359f <unknown>
+
+
 udot    za.s[w8, 0, vgx2], {z0.h-z1.h}, z0.h[0]  // 11000001-01010000-00010000-00010000
 // CHECK-INST: udot    za.s[w8, 0, vgx2], { z0.h-z1.h }, z0.h[0]
 // CHECK-ENCODING: [0x10,0x10,0x50,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1501010 <unknown>
 
 udot    za.s[w8, 0], {z0.h-z1.h}, z0.h[0]  // 11000001-01010000-00010000-00010000
 // CHECK-INST: udot    za.s[w8, 0, vgx2], { z0.h-z1.h }, z0.h[0]

 
 udot    za.s[w9, 7], {z12.h-z13.h}, z11.h[2]  // 11000001-01011011-00111001-10010111
 // CHECK-INST: udot    za.s[w9, 7, vgx2], { z12.h-z13.h }, z11.h[2]
 // CHECK-ENCODING: [0x97,0x39,0x5b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c15b3997 <unknown>
 
 
+udot    za.s[w8, 0, vgx2], {z0.h-z1.h}, {z0.h-z1.h}  // 11000001-11100000-00010100-00011000
+// CHECK-INST: udot    za.s[w8, 0, vgx2], { z0.h-z1.h }, { z0.h-z1.h }
+// CHECK-ENCODING: [0x18,0x14,0xe0,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e01418 <unknown>
+
+udot    za.s[w8, 0], {z0.h-z1.h}, {z0.h-z1.h}  // 11000001-11100000-00010100-00011000
+// CHECK-INST: udot    za.s[w8, 0, vgx2], { z0.h-z1.h }, { z0.h-z1.h }
+// CHECK-ENCODING: [0x18,0x14,0xe0,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e01418 <unknown>
+
+udot    za.s[w10, 5, vgx2], {z10.h-z11.h}, {z20.h-z21.h}  // 11000001-11110100-01010101-01011101
+// CHECK-INST: udot    za.s[w10, 5, vgx2], { z10.h-z11.h }, { z20.h-z21.h }
+// CHECK-ENCODING: [0x5d,0x55,0xf4,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f4555d <unknown>
+
+udot    za.s[w10, 5], {z10.h-z11.h}, {z20.h-z21.h}  // 11000001-11110100-01010101-01011101
+// CHECK-INST: udot    za.s[w10, 5, vgx2], { z10.h-z11.h }, { z20.h-z21.h }
+// CHECK-ENCODING: [0x5d,0x55,0xf4,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f4555d <unknown>
+
+udot    za.s[w11, 7, vgx2], {z12.h-z13.h}, {z8.h-z9.h}  // 11000001-11101000-01110101-10011111
+// CHECK-INST: udot    za.s[w11, 7, vgx2], { z12.h-z13.h }, { z8.h-z9.h }
+// CHECK-ENCODING: [0x9f,0x75,0xe8,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e8759f <unknown>
+
+udot    za.s[w11, 7], {z12.h-z13.h}, {z8.h-z9.h}  // 11000001-11101000-01110101-10011111
+// CHECK-INST: udot    za.s[w11, 7, vgx2], { z12.h-z13.h }, { z8.h-z9.h }
+// CHECK-ENCODING: [0x9f,0x75,0xe8,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e8759f <unknown>
+
+udot    za.s[w11, 7, vgx2], {z30.h-z31.h}, {z30.h-z31.h}  // 11000001-11111110-01110111-11011111
+// CHECK-INST: udot    za.s[w11, 7, vgx2], { z30.h-z31.h }, { z30.h-z31.h }
+// CHECK-ENCODING: [0xdf,0x77,0xfe,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fe77df <unknown>
+
+udot    za.s[w11, 7], {z30.h-z31.h}, {z30.h-z31.h}  // 11000001-11111110-01110111-11011111
+// CHECK-INST: udot    za.s[w11, 7, vgx2], { z30.h-z31.h }, { z30.h-z31.h }
+// CHECK-ENCODING: [0xdf,0x77,0xfe,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fe77df <unknown>
+
+udot    za.s[w8, 5, vgx2], {z16.h-z17.h}, {z16.h-z17.h}  // 11000001-11110000-00010110-00011101
+// CHECK-INST: udot    za.s[w8, 5, vgx2], { z16.h-z17.h }, { z16.h-z17.h }
+// CHECK-ENCODING: [0x1d,0x16,0xf0,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f0161d <unknown>
+
+udot    za.s[w8, 5], {z16.h-z17.h}, {z16.h-z17.h}  // 11000001-11110000-00010110-00011101
+// CHECK-INST: udot    za.s[w8, 5, vgx2], { z16.h-z17.h }, { z16.h-z17.h }
+// CHECK-ENCODING: [0x1d,0x16,0xf0,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f0161d <unknown>
+
+udot    za.s[w8, 1, vgx2], {z0.h-z1.h}, {z30.h-z31.h}  // 11000001-11111110-00010100-00011001
+// CHECK-INST: udot    za.s[w8, 1, vgx2], { z0.h-z1.h }, { z30.h-z31.h }
+// CHECK-ENCODING: [0x19,0x14,0xfe,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fe1419 <unknown>
+
+udot    za.s[w8, 1], {z0.h-z1.h}, {z30.h-z31.h}  // 11000001-11111110-00010100-00011001
+// CHECK-INST: udot    za.s[w8, 1, vgx2], { z0.h-z1.h }, { z30.h-z31.h }
+// CHECK-ENCODING: [0x19,0x14,0xfe,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fe1419 <unknown>
+
+udot    za.s[w10, 0, vgx2], {z18.h-z19.h}, {z20.h-z21.h}  // 11000001-11110100-01010110-01011000
+// CHECK-INST: udot    za.s[w10, 0, vgx2], { z18.h-z19.h }, { z20.h-z21.h }
+// CHECK-ENCODING: [0x58,0x56,0xf4,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f45658 <unknown>
+
+udot    za.s[w10, 0], {z18.h-z19.h}, {z20.h-z21.h}  // 11000001-11110100-01010110-01011000
+// CHECK-INST: udot    za.s[w10, 0, vgx2], { z18.h-z19.h }, { z20.h-z21.h }
+// CHECK-ENCODING: [0x58,0x56,0xf4,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f45658 <unknown>
+
+udot    za.s[w8, 0, vgx2], {z12.h-z13.h}, {z2.h-z3.h}  // 11000001-11100010-00010101-10011000
+// CHECK-INST: udot    za.s[w8, 0, vgx2], { z12.h-z13.h }, { z2.h-z3.h }
+// CHECK-ENCODING: [0x98,0x15,0xe2,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e21598 <unknown>
+
+udot    za.s[w8, 0], {z12.h-z13.h}, {z2.h-z3.h}  // 11000001-11100010-00010101-10011000
+// CHECK-INST: udot    za.s[w8, 0, vgx2], { z12.h-z13.h }, { z2.h-z3.h }
+// CHECK-ENCODING: [0x98,0x15,0xe2,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e21598 <unknown>
+
+udot    za.s[w10, 1, vgx2], {z0.h-z1.h}, {z26.h-z27.h}  // 11000001-11111010-01010100-00011001
+// CHECK-INST: udot    za.s[w10, 1, vgx2], { z0.h-z1.h }, { z26.h-z27.h }
+// CHECK-ENCODING: [0x19,0x54,0xfa,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fa5419 <unknown>
+
+udot    za.s[w10, 1], {z0.h-z1.h}, {z26.h-z27.h}  // 11000001-11111010-01010100-00011001
+// CHECK-INST: udot    za.s[w10, 1, vgx2], { z0.h-z1.h }, { z26.h-z27.h }
+// CHECK-ENCODING: [0x19,0x54,0xfa,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fa5419 <unknown>
+
+udot    za.s[w8, 5, vgx2], {z22.h-z23.h}, {z30.h-z31.h}  // 11000001-11111110-00010110-11011101
+// CHECK-INST: udot    za.s[w8, 5, vgx2], { z22.h-z23.h }, { z30.h-z31.h }
+// CHECK-ENCODING: [0xdd,0x16,0xfe,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fe16dd <unknown>
+
+udot    za.s[w8, 5], {z22.h-z23.h}, {z30.h-z31.h}  // 11000001-11111110-00010110-11011101
+// CHECK-INST: udot    za.s[w8, 5, vgx2], { z22.h-z23.h }, { z30.h-z31.h }
+// CHECK-ENCODING: [0xdd,0x16,0xfe,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fe16dd <unknown>
+
+udot    za.s[w11, 2, vgx2], {z8.h-z9.h}, {z0.h-z1.h}  // 11000001-11100000-01110101-00011010
+// CHECK-INST: udot    za.s[w11, 2, vgx2], { z8.h-z9.h }, { z0.h-z1.h }
+// CHECK-ENCODING: [0x1a,0x75,0xe0,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e0751a <unknown>
+
+udot    za.s[w11, 2], {z8.h-z9.h}, {z0.h-z1.h}  // 11000001-11100000-01110101-00011010
+// CHECK-INST: udot    za.s[w11, 2, vgx2], { z8.h-z9.h }, { z0.h-z1.h }
+// CHECK-ENCODING: [0x1a,0x75,0xe0,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e0751a <unknown>
+
+udot    za.s[w9, 7, vgx2], {z12.h-z13.h}, {z10.h-z11.h}  // 11000001-11101010-00110101-10011111
+// CHECK-INST: udot    za.s[w9, 7, vgx2], { z12.h-z13.h }, { z10.h-z11.h }
+// CHECK-ENCODING: [0x9f,0x35,0xea,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1ea359f <unknown>
+
+udot    za.s[w9, 7], {z12.h-z13.h}, {z10.h-z11.h}  // 11000001-11101010-00110101-10011111
+// CHECK-INST: udot    za.s[w9, 7, vgx2], { z12.h-z13.h }, { z10.h-z11.h }
+// CHECK-ENCODING: [0x9f,0x35,0xea,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1ea359f <unknown>
+
+
 udot    za.s[w8, 0, vgx2], {z0.b-z1.b}, z0.b[0]  // 11000001-01010000-00010000-00110000
 // CHECK-INST: udot    za.s[w8, 0, vgx2], { z0.b-z1.b }, z0.b[0]
 // CHECK-ENCODING: [0x30,0x10,0x50,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1501030 <unknown>
 
 udot    za.s[w8, 0], {z0.b-z1.b}, z0.b[0]  // 11000001-01010000-00010000-00110000
 // CHECK-INST: udot    za.s[w8, 0, vgx2], { z0.b-z1.b }, z0.b[0]

 
 udot    za.d[w9, 7], {z12.h-z13.h}, z11.h[0]  // 11000001-11011011-00100001-10011111
 // CHECK-INST: udot    za.d[w9, 7, vgx2], { z12.h-z13.h }, z11.h[0]
 // CHECK-ENCODING: [0x9f,0x21,0xdb,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1db219f <unknown>
 
 
+udot    za.s[w8, 0, vgx4], {z0.h-z3.h}, z0.h  // 11000001-01110000-00010100-00011000
+// CHECK-INST: udot    za.s[w8, 0, vgx4], { z0.h-z3.h }, z0.h
+// CHECK-ENCODING: [0x18,0x14,0x70,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1701418 <unknown>
+
+udot    za.s[w8, 0], {z0.h-z3.h}, z0.h  // 11000001-01110000-00010100-00011000
+// CHECK-INST: udot    za.s[w8, 0, vgx4], { z0.h-z3.h }, z0.h
+// CHECK-ENCODING: [0x18,0x14,0x70,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1701418 <unknown>
+
+udot    za.s[w10, 5, vgx4], {z10.h-z13.h}, z5.h  // 11000001-01110101-01010101-01011101
+// CHECK-INST: udot    za.s[w10, 5, vgx4], { z10.h-z13.h }, z5.h
+// CHECK-ENCODING: [0x5d,0x55,0x75,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c175555d <unknown>
+
+udot    za.s[w10, 5], {z10.h-z13.h}, z5.h  // 11000001-01110101-01010101-01011101
+// CHECK-INST: udot    za.s[w10, 5, vgx4], { z10.h-z13.h }, z5.h
+// CHECK-ENCODING: [0x5d,0x55,0x75,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c175555d <unknown>
+
+udot    za.s[w11, 7, vgx4], {z13.h-z16.h}, z8.h  // 11000001-01111000-01110101-10111111
+// CHECK-INST: udot    za.s[w11, 7, vgx4], { z13.h-z16.h }, z8.h
+// CHECK-ENCODING: [0xbf,0x75,0x78,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17875bf <unknown>
+
+udot    za.s[w11, 7], {z13.h-z16.h}, z8.h  // 11000001-01111000-01110101-10111111
+// CHECK-INST: udot    za.s[w11, 7, vgx4], { z13.h-z16.h }, z8.h
+// CHECK-ENCODING: [0xbf,0x75,0x78,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17875bf <unknown>
+
+udot    za.s[w11, 7, vgx4], {z31.h-z2.h}, z15.h  // 11000001-01111111-01110111-11111111
+// CHECK-INST: udot    za.s[w11, 7, vgx4], { z31.h-z2.h }, z15.h
+// CHECK-ENCODING: [0xff,0x77,0x7f,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17f77ff <unknown>
+
+udot    za.s[w11, 7], {z31.h-z2.h}, z15.h  // 11000001-01111111-01110111-11111111
+// CHECK-INST: udot    za.s[w11, 7, vgx4], { z31.h-z2.h }, z15.h
+// CHECK-ENCODING: [0xff,0x77,0x7f,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17f77ff <unknown>
+
+udot    za.s[w8, 5, vgx4], {z17.h-z20.h}, z0.h  // 11000001-01110000-00010110-00111101
+// CHECK-INST: udot    za.s[w8, 5, vgx4], { z17.h-z20.h }, z0.h
+// CHECK-ENCODING: [0x3d,0x16,0x70,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c170163d <unknown>
+
+udot    za.s[w8, 5], {z17.h-z20.h}, z0.h  // 11000001-01110000-00010110-00111101
+// CHECK-INST: udot    za.s[w8, 5, vgx4], { z17.h-z20.h }, z0.h
+// CHECK-ENCODING: [0x3d,0x16,0x70,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c170163d <unknown>
+
+udot    za.s[w8, 1, vgx4], {z1.h-z4.h}, z14.h  // 11000001-01111110-00010100-00111001
+// CHECK-INST: udot    za.s[w8, 1, vgx4], { z1.h-z4.h }, z14.h
+// CHECK-ENCODING: [0x39,0x14,0x7e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17e1439 <unknown>
+
+udot    za.s[w8, 1], {z1.h-z4.h}, z14.h  // 11000001-01111110-00010100-00111001
+// CHECK-INST: udot    za.s[w8, 1, vgx4], { z1.h-z4.h }, z14.h
+// CHECK-ENCODING: [0x39,0x14,0x7e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17e1439 <unknown>
+
+udot    za.s[w10, 0, vgx4], {z19.h-z22.h}, z4.h  // 11000001-01110100-01010110-01111000
+// CHECK-INST: udot    za.s[w10, 0, vgx4], { z19.h-z22.h }, z4.h
+// CHECK-ENCODING: [0x78,0x56,0x74,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1745678 <unknown>
+
+udot    za.s[w10, 0], {z19.h-z22.h}, z4.h  // 11000001-01110100-01010110-01111000
+// CHECK-INST: udot    za.s[w10, 0, vgx4], { z19.h-z22.h }, z4.h
+// CHECK-ENCODING: [0x78,0x56,0x74,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1745678 <unknown>
+
+udot    za.s[w8, 0, vgx4], {z12.h-z15.h}, z2.h  // 11000001-01110010-00010101-10011000
+// CHECK-INST: udot    za.s[w8, 0, vgx4], { z12.h-z15.h }, z2.h
+// CHECK-ENCODING: [0x98,0x15,0x72,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1721598 <unknown>
+
+udot    za.s[w8, 0], {z12.h-z15.h}, z2.h  // 11000001-01110010-00010101-10011000
+// CHECK-INST: udot    za.s[w8, 0, vgx4], { z12.h-z15.h }, z2.h
+// CHECK-ENCODING: [0x98,0x15,0x72,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1721598 <unknown>
+
+udot    za.s[w10, 1, vgx4], {z1.h-z4.h}, z10.h  // 11000001-01111010-01010100-00111001
+// CHECK-INST: udot    za.s[w10, 1, vgx4], { z1.h-z4.h }, z10.h
+// CHECK-ENCODING: [0x39,0x54,0x7a,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17a5439 <unknown>
+
+udot    za.s[w10, 1], {z1.h-z4.h}, z10.h  // 11000001-01111010-01010100-00111001
+// CHECK-INST: udot    za.s[w10, 1, vgx4], { z1.h-z4.h }, z10.h
+// CHECK-ENCODING: [0x39,0x54,0x7a,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17a5439 <unknown>
+
+udot    za.s[w8, 5, vgx4], {z22.h-z25.h}, z14.h  // 11000001-01111110-00010110-11011101
+// CHECK-INST: udot    za.s[w8, 5, vgx4], { z22.h-z25.h }, z14.h
+// CHECK-ENCODING: [0xdd,0x16,0x7e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17e16dd <unknown>
+
+udot    za.s[w8, 5], {z22.h-z25.h}, z14.h  // 11000001-01111110-00010110-11011101
+// CHECK-INST: udot    za.s[w8, 5, vgx4], { z22.h-z25.h }, z14.h
+// CHECK-ENCODING: [0xdd,0x16,0x7e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17e16dd <unknown>
+
+udot    za.s[w11, 2, vgx4], {z9.h-z12.h}, z1.h  // 11000001-01110001-01110101-00111010
+// CHECK-INST: udot    za.s[w11, 2, vgx4], { z9.h-z12.h }, z1.h
+// CHECK-ENCODING: [0x3a,0x75,0x71,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c171753a <unknown>
+
+udot    za.s[w11, 2], {z9.h-z12.h}, z1.h  // 11000001-01110001-01110101-00111010
+// CHECK-INST: udot    za.s[w11, 2, vgx4], { z9.h-z12.h }, z1.h
+// CHECK-ENCODING: [0x3a,0x75,0x71,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c171753a <unknown>
+
+udot    za.s[w9, 7, vgx4], {z12.h-z15.h}, z11.h  // 11000001-01111011-00110101-10011111
+// CHECK-INST: udot    za.s[w9, 7, vgx4], { z12.h-z15.h }, z11.h
+// CHECK-ENCODING: [0x9f,0x35,0x7b,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17b359f <unknown>
+
+udot    za.s[w9, 7], {z12.h-z15.h}, z11.h  // 11000001-01111011-00110101-10011111
+// CHECK-INST: udot    za.s[w9, 7, vgx4], { z12.h-z15.h }, z11.h
+// CHECK-ENCODING: [0x9f,0x35,0x7b,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c17b359f <unknown>
+
+
 udot    za.s[w8, 0, vgx4], {z0.h-z3.h}, z0.h[0]  // 11000001-01010000-10010000-00010000
 // CHECK-INST: udot    za.s[w8, 0, vgx4], { z0.h-z3.h }, z0.h[0]
 // CHECK-ENCODING: [0x10,0x90,0x50,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1509010 <unknown>
 
 udot    za.s[w8, 0], {z0.h-z3.h}, z0.h[0]  // 11000001-01010000-10010000-00010000
 // CHECK-INST: udot    za.s[w8, 0, vgx4], { z0.h-z3.h }, z0.h[0]

 
 udot    za.s[w9, 7], {z12.h-z15.h}, z11.h[2]  // 11000001-01011011-10111001-10010111
 // CHECK-INST: udot    za.s[w9, 7, vgx4], { z12.h-z15.h }, z11.h[2]
 // CHECK-ENCODING: [0x97,0xb9,0x5b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c15bb997 <unknown>
 
 
+udot    za.s[w8, 0, vgx4], {z0.h-z3.h}, {z0.h-z3.h}  // 11000001-11100001-00010100-00011000
+// CHECK-INST: udot    za.s[w8, 0, vgx4], { z0.h-z3.h }, { z0.h-z3.h }
+// CHECK-ENCODING: [0x18,0x14,0xe1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e11418 <unknown>
+
+udot    za.s[w8, 0], {z0.h-z3.h}, {z0.h-z3.h}  // 11000001-11100001-00010100-00011000
+// CHECK-INST: udot    za.s[w8, 0, vgx4], { z0.h-z3.h }, { z0.h-z3.h }
+// CHECK-ENCODING: [0x18,0x14,0xe1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e11418 <unknown>
+
+udot    za.s[w10, 5, vgx4], {z8.h-z11.h}, {z20.h-z23.h}  // 11000001-11110101-01010101-00011101
+// CHECK-INST: udot    za.s[w10, 5, vgx4], { z8.h-z11.h }, { z20.h-z23.h }
+// CHECK-ENCODING: [0x1d,0x55,0xf5,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f5551d <unknown>
+
+udot    za.s[w10, 5], {z8.h-z11.h}, {z20.h-z23.h}  // 11000001-11110101-01010101-00011101
+// CHECK-INST: udot    za.s[w10, 5, vgx4], { z8.h-z11.h }, { z20.h-z23.h }
+// CHECK-ENCODING: [0x1d,0x55,0xf5,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f5551d <unknown>
+
+udot    za.s[w11, 7, vgx4], {z12.h-z15.h}, {z8.h-z11.h}  // 11000001-11101001-01110101-10011111
+// CHECK-INST: udot    za.s[w11, 7, vgx4], { z12.h-z15.h }, { z8.h-z11.h }
+// CHECK-ENCODING: [0x9f,0x75,0xe9,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e9759f <unknown>
+
+udot    za.s[w11, 7], {z12.h-z15.h}, {z8.h-z11.h}  // 11000001-11101001-01110101-10011111
+// CHECK-INST: udot    za.s[w11, 7, vgx4], { z12.h-z15.h }, { z8.h-z11.h }
+// CHECK-ENCODING: [0x9f,0x75,0xe9,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e9759f <unknown>
+
+udot    za.s[w11, 7, vgx4], {z28.h-z31.h}, {z28.h-z31.h}  // 11000001-11111101-01110111-10011111
+// CHECK-INST: udot    za.s[w11, 7, vgx4], { z28.h-z31.h }, { z28.h-z31.h }
+// CHECK-ENCODING: [0x9f,0x77,0xfd,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fd779f <unknown>
+
+udot    za.s[w11, 7], {z28.h-z31.h}, {z28.h-z31.h}  // 11000001-11111101-01110111-10011111
+// CHECK-INST: udot    za.s[w11, 7, vgx4], { z28.h-z31.h }, { z28.h-z31.h }
+// CHECK-ENCODING: [0x9f,0x77,0xfd,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fd779f <unknown>
+
+udot    za.s[w8, 5, vgx4], {z16.h-z19.h}, {z16.h-z19.h}  // 11000001-11110001-00010110-00011101
+// CHECK-INST: udot    za.s[w8, 5, vgx4], { z16.h-z19.h }, { z16.h-z19.h }
+// CHECK-ENCODING: [0x1d,0x16,0xf1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f1161d <unknown>
+
+udot    za.s[w8, 5], {z16.h-z19.h}, {z16.h-z19.h}  // 11000001-11110001-00010110-00011101
+// CHECK-INST: udot    za.s[w8, 5, vgx4], { z16.h-z19.h }, { z16.h-z19.h }
+// CHECK-ENCODING: [0x1d,0x16,0xf1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f1161d <unknown>
+
+udot    za.s[w8, 1, vgx4], {z0.h-z3.h}, {z28.h-z31.h}  // 11000001-11111101-00010100-00011001
+// CHECK-INST: udot    za.s[w8, 1, vgx4], { z0.h-z3.h }, { z28.h-z31.h }
+// CHECK-ENCODING: [0x19,0x14,0xfd,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fd1419 <unknown>
+
+udot    za.s[w8, 1], {z0.h-z3.h}, {z28.h-z31.h}  // 11000001-11111101-00010100-00011001
+// CHECK-INST: udot    za.s[w8, 1, vgx4], { z0.h-z3.h }, { z28.h-z31.h }
+// CHECK-ENCODING: [0x19,0x14,0xfd,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fd1419 <unknown>
+
+udot    za.s[w10, 0, vgx4], {z16.h-z19.h}, {z20.h-z23.h}  // 11000001-11110101-01010110-00011000
+// CHECK-INST: udot    za.s[w10, 0, vgx4], { z16.h-z19.h }, { z20.h-z23.h }
+// CHECK-ENCODING: [0x18,0x56,0xf5,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f55618 <unknown>
+
+udot    za.s[w10, 0], {z16.h-z19.h}, {z20.h-z23.h}  // 11000001-11110101-01010110-00011000
+// CHECK-INST: udot    za.s[w10, 0, vgx4], { z16.h-z19.h }, { z20.h-z23.h }
+// CHECK-ENCODING: [0x18,0x56,0xf5,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f55618 <unknown>
+
+udot    za.s[w8, 0, vgx4], {z12.h-z15.h}, {z0.h-z3.h}  // 11000001-11100001-00010101-10011000
+// CHECK-INST: udot    za.s[w8, 0, vgx4], { z12.h-z15.h }, { z0.h-z3.h }
+// CHECK-ENCODING: [0x98,0x15,0xe1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e11598 <unknown>
+
+udot    za.s[w8, 0], {z12.h-z15.h}, {z0.h-z3.h}  // 11000001-11100001-00010101-10011000
+// CHECK-INST: udot    za.s[w8, 0, vgx4], { z12.h-z15.h }, { z0.h-z3.h }
+// CHECK-ENCODING: [0x98,0x15,0xe1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e11598 <unknown>
+
+udot    za.s[w10, 1, vgx4], {z0.h-z3.h}, {z24.h-z27.h}  // 11000001-11111001-01010100-00011001
+// CHECK-INST: udot    za.s[w10, 1, vgx4], { z0.h-z3.h }, { z24.h-z27.h }
+// CHECK-ENCODING: [0x19,0x54,0xf9,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f95419 <unknown>
+
+udot    za.s[w10, 1], {z0.h-z3.h}, {z24.h-z27.h}  // 11000001-11111001-01010100-00011001
+// CHECK-INST: udot    za.s[w10, 1, vgx4], { z0.h-z3.h }, { z24.h-z27.h }
+// CHECK-ENCODING: [0x19,0x54,0xf9,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1f95419 <unknown>
+
+udot    za.s[w8, 5, vgx4], {z20.h-z23.h}, {z28.h-z31.h}  // 11000001-11111101-00010110-10011101
+// CHECK-INST: udot    za.s[w8, 5, vgx4], { z20.h-z23.h }, { z28.h-z31.h }
+// CHECK-ENCODING: [0x9d,0x16,0xfd,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fd169d <unknown>
+
+udot    za.s[w8, 5], {z20.h-z23.h}, {z28.h-z31.h}  // 11000001-11111101-00010110-10011101
+// CHECK-INST: udot    za.s[w8, 5, vgx4], { z20.h-z23.h }, { z28.h-z31.h }
+// CHECK-ENCODING: [0x9d,0x16,0xfd,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1fd169d <unknown>
+
+udot    za.s[w11, 2, vgx4], {z8.h-z11.h}, {z0.h-z3.h}  // 11000001-11100001-01110101-00011010
+// CHECK-INST: udot    za.s[w11, 2, vgx4], { z8.h-z11.h }, { z0.h-z3.h }
+// CHECK-ENCODING: [0x1a,0x75,0xe1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e1751a <unknown>
+
+udot    za.s[w11, 2], {z8.h-z11.h}, {z0.h-z3.h}  // 11000001-11100001-01110101-00011010
+// CHECK-INST: udot    za.s[w11, 2, vgx4], { z8.h-z11.h }, { z0.h-z3.h }
+// CHECK-ENCODING: [0x1a,0x75,0xe1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e1751a <unknown>
+
+udot    za.s[w9, 7, vgx4], {z12.h-z15.h}, {z8.h-z11.h}  // 11000001-11101001-00110101-10011111
+// CHECK-INST: udot    za.s[w9, 7, vgx4], { z12.h-z15.h }, { z8.h-z11.h }
+// CHECK-ENCODING: [0x9f,0x35,0xe9,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e9359f <unknown>
+
+udot    za.s[w9, 7], {z12.h-z15.h}, {z8.h-z11.h}  // 11000001-11101001-00110101-10011111
+// CHECK-INST: udot    za.s[w9, 7, vgx4], { z12.h-z15.h }, { z8.h-z11.h }
+// CHECK-ENCODING: [0x9f,0x35,0xe9,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1e9359f <unknown>
+
+
 udot    za.s[w8, 0, vgx4], {z0.b-z3.b}, z0.b[0]  // 11000001-01010000-10010000-00110000
 // CHECK-INST: udot    za.s[w8, 0, vgx4], { z0.b-z3.b }, z0.b[0]
 // CHECK-ENCODING: [0x30,0x90,0x50,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1509030 <unknown>
 
 udot    za.s[w8, 0], {z0.b-z3.b}, z0.b[0]  // 11000001-01010000-10010000-00110000
 // CHECK-INST: udot    za.s[w8, 0, vgx4], { z0.b-z3.b }, z0.b[0]

llvm/test/MC/AArch64/SME2/usdot.s

 // RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+sme2 < %s \
 // RUN:        | FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
 // RUN: not llvm-mc -triple=aarch64 -show-encoding < %s 2>&1 \
 // RUN:        | FileCheck %s --check-prefix=CHECK-ERROR
 // RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+sme2 < %s \
 // RUN:        | llvm-objdump -d --mattr=+sme2 - | FileCheck %s --check-prefix=CHECK-INST
 // RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+sme2 < %s \
 // RUN:        | llvm-objdump -d - | FileCheck %s --check-prefix=CHECK-UNKNOWN
 // RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+sme2 < %s \
 // RUN:        | sed '/.text/d' | sed 's/.*encoding: //g' \
 // RUN:        | llvm-mc -triple=aarch64 -mattr=+sme2 -disassemble -show-encoding \
 // RUN:        | FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
 
 
+usdot   za.s[w8, 0, vgx2], {z0.b-z1.b}, z0.b  // 11000001-00100000-00010100-00001000
+// CHECK-INST: usdot   za.s[w8, 0, vgx2], { z0.b-z1.b }, z0.b
+// CHECK-ENCODING: [0x08,0x14,0x20,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1201408 <unknown>
+
+usdot   za.s[w8, 0], {z0.b-z1.b}, z0.b  // 11000001-00100000-00010100-00001000
+// CHECK-INST: usdot   za.s[w8, 0, vgx2], { z0.b-z1.b }, z0.b
+// CHECK-ENCODING: [0x08,0x14,0x20,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1201408 <unknown>
+
+usdot   za.s[w10, 5, vgx2], {z10.b-z11.b}, z5.b  // 11000001-00100101-01010101-01001101
+// CHECK-INST: usdot   za.s[w10, 5, vgx2], { z10.b-z11.b }, z5.b
+// CHECK-ENCODING: [0x4d,0x55,0x25,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c125554d <unknown>
+
+usdot   za.s[w10, 5], {z10.b-z11.b}, z5.b  // 11000001-00100101-01010101-01001101
+// CHECK-INST: usdot   za.s[w10, 5, vgx2], { z10.b-z11.b }, z5.b
+// CHECK-ENCODING: [0x4d,0x55,0x25,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c125554d <unknown>
+
+usdot   za.s[w11, 7, vgx2], {z13.b-z14.b}, z8.b  // 11000001-00101000-01110101-10101111
+// CHECK-INST: usdot   za.s[w11, 7, vgx2], { z13.b-z14.b }, z8.b
+// CHECK-ENCODING: [0xaf,0x75,0x28,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12875af <unknown>
+
+usdot   za.s[w11, 7], {z13.b-z14.b}, z8.b  // 11000001-00101000-01110101-10101111
+// CHECK-INST: usdot   za.s[w11, 7, vgx2], { z13.b-z14.b }, z8.b
+// CHECK-ENCODING: [0xaf,0x75,0x28,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12875af <unknown>
+
+usdot   za.s[w11, 7, vgx2], {z31.b-z0.b}, z15.b  // 11000001-00101111-01110111-11101111
+// CHECK-INST: usdot   za.s[w11, 7, vgx2], { z31.b-z0.b }, z15.b
+// CHECK-ENCODING: [0xef,0x77,0x2f,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12f77ef <unknown>
+
+usdot   za.s[w11, 7], {z31.b-z0.b}, z15.b  // 11000001-00101111-01110111-11101111
+// CHECK-INST: usdot   za.s[w11, 7, vgx2], { z31.b-z0.b }, z15.b
+// CHECK-ENCODING: [0xef,0x77,0x2f,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12f77ef <unknown>
+
+usdot   za.s[w8, 5, vgx2], {z17.b-z18.b}, z0.b  // 11000001-00100000-00010110-00101101
+// CHECK-INST: usdot   za.s[w8, 5, vgx2], { z17.b-z18.b }, z0.b
+// CHECK-ENCODING: [0x2d,0x16,0x20,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c120162d <unknown>
+
+usdot   za.s[w8, 5], {z17.b-z18.b}, z0.b  // 11000001-00100000-00010110-00101101
+// CHECK-INST: usdot   za.s[w8, 5, vgx2], { z17.b-z18.b }, z0.b
+// CHECK-ENCODING: [0x2d,0x16,0x20,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c120162d <unknown>
+
+usdot   za.s[w8, 1, vgx2], {z1.b-z2.b}, z14.b  // 11000001-00101110-00010100-00101001
+// CHECK-INST: usdot   za.s[w8, 1, vgx2], { z1.b-z2.b }, z14.b
+// CHECK-ENCODING: [0x29,0x14,0x2e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12e1429 <unknown>
+
+usdot   za.s[w8, 1], {z1.b-z2.b}, z14.b  // 11000001-00101110-00010100-00101001
+// CHECK-INST: usdot   za.s[w8, 1, vgx2], { z1.b-z2.b }, z14.b
+// CHECK-ENCODING: [0x29,0x14,0x2e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12e1429 <unknown>
+
+usdot   za.s[w10, 0, vgx2], {z19.b-z20.b}, z4.b  // 11000001-00100100-01010110-01101000
+// CHECK-INST: usdot   za.s[w10, 0, vgx2], { z19.b-z20.b }, z4.b
+// CHECK-ENCODING: [0x68,0x56,0x24,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1245668 <unknown>
+
+usdot   za.s[w10, 0], {z19.b-z20.b}, z4.b  // 11000001-00100100-01010110-01101000
+// CHECK-INST: usdot   za.s[w10, 0, vgx2], { z19.b-z20.b }, z4.b
+// CHECK-ENCODING: [0x68,0x56,0x24,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1245668 <unknown>
+
+usdot   za.s[w8, 0, vgx2], {z12.b-z13.b}, z2.b  // 11000001-00100010-00010101-10001000
+// CHECK-INST: usdot   za.s[w8, 0, vgx2], { z12.b-z13.b }, z2.b
+// CHECK-ENCODING: [0x88,0x15,0x22,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1221588 <unknown>
+
+usdot   za.s[w8, 0], {z12.b-z13.b}, z2.b  // 11000001-00100010-00010101-10001000
+// CHECK-INST: usdot   za.s[w8, 0, vgx2], { z12.b-z13.b }, z2.b
+// CHECK-ENCODING: [0x88,0x15,0x22,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1221588 <unknown>
+
+usdot   za.s[w10, 1, vgx2], {z1.b-z2.b}, z10.b  // 11000001-00101010-01010100-00101001
+// CHECK-INST: usdot   za.s[w10, 1, vgx2], { z1.b-z2.b }, z10.b
+// CHECK-ENCODING: [0x29,0x54,0x2a,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12a5429 <unknown>
+
+usdot   za.s[w10, 1], {z1.b-z2.b}, z10.b  // 11000001-00101010-01010100-00101001
+// CHECK-INST: usdot   za.s[w10, 1, vgx2], { z1.b-z2.b }, z10.b
+// CHECK-ENCODING: [0x29,0x54,0x2a,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12a5429 <unknown>
+
+usdot   za.s[w8, 5, vgx2], {z22.b-z23.b}, z14.b  // 11000001-00101110-00010110-11001101
+// CHECK-INST: usdot   za.s[w8, 5, vgx2], { z22.b-z23.b }, z14.b
+// CHECK-ENCODING: [0xcd,0x16,0x2e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12e16cd <unknown>
+
+usdot   za.s[w8, 5], {z22.b-z23.b}, z14.b  // 11000001-00101110-00010110-11001101
+// CHECK-INST: usdot   za.s[w8, 5, vgx2], { z22.b-z23.b }, z14.b
+// CHECK-ENCODING: [0xcd,0x16,0x2e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12e16cd <unknown>
+
+usdot   za.s[w11, 2, vgx2], {z9.b-z10.b}, z1.b  // 11000001-00100001-01110101-00101010
+// CHECK-INST: usdot   za.s[w11, 2, vgx2], { z9.b-z10.b }, z1.b
+// CHECK-ENCODING: [0x2a,0x75,0x21,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c121752a <unknown>
+
+usdot   za.s[w11, 2], {z9.b-z10.b}, z1.b  // 11000001-00100001-01110101-00101010
+// CHECK-INST: usdot   za.s[w11, 2, vgx2], { z9.b-z10.b }, z1.b
+// CHECK-ENCODING: [0x2a,0x75,0x21,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c121752a <unknown>
+
+usdot   za.s[w9, 7, vgx2], {z12.b-z13.b}, z11.b  // 11000001-00101011-00110101-10001111
+// CHECK-INST: usdot   za.s[w9, 7, vgx2], { z12.b-z13.b }, z11.b
+// CHECK-ENCODING: [0x8f,0x35,0x2b,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12b358f <unknown>
+
+usdot   za.s[w9, 7], {z12.b-z13.b}, z11.b  // 11000001-00101011-00110101-10001111
+// CHECK-INST: usdot   za.s[w9, 7, vgx2], { z12.b-z13.b }, z11.b
+// CHECK-ENCODING: [0x8f,0x35,0x2b,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c12b358f <unknown>
+
+
 usdot   za.s[w8, 0, vgx2], {z0.b-z1.b}, z0.b[0]  // 11000001-01010000-00010000-00101000
 // CHECK-INST: usdot   za.s[w8, 0, vgx2], { z0.b-z1.b }, z0.b[0]
 // CHECK-ENCODING: [0x28,0x10,0x50,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1501028 <unknown>
 
 usdot   za.s[w8, 0], {z0.b-z1.b}, z0.b[0]  // 11000001-01010000-00010000-00101000
 // CHECK-INST: usdot   za.s[w8, 0, vgx2], { z0.b-z1.b }, z0.b[0]

 
 usdot   za.s[w9, 7], {z12.b-z13.b}, z11.b[2]  // 11000001-01011011-00111001-10101111
 // CHECK-INST: usdot   za.s[w9, 7, vgx2], { z12.b-z13.b }, z11.b[2]
 // CHECK-ENCODING: [0xaf,0x39,0x5b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c15b39af <unknown>
 
 
+usdot   za.s[w8, 0, vgx2], {z0.b-z1.b}, {z0.b-z1.b}  // 11000001-10100000-00010100-00001000
+// CHECK-INST: usdot   za.s[w8, 0, vgx2], { z0.b-z1.b }, { z0.b-z1.b }
+// CHECK-ENCODING: [0x08,0x14,0xa0,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1a01408 <unknown>
+
+usdot   za.s[w8, 0], {z0.b-z1.b}, {z0.b-z1.b}  // 11000001-10100000-00010100-00001000
+// CHECK-INST: usdot   za.s[w8, 0, vgx2], { z0.b-z1.b }, { z0.b-z1.b }
+// CHECK-ENCODING: [0x08,0x14,0xa0,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1a01408 <unknown>
+
+usdot   za.s[w10, 5, vgx2], {z10.b-z11.b}, {z20.b-z21.b}  // 11000001-10110100-01010101-01001101
+// CHECK-INST: usdot   za.s[w10, 5, vgx2], { z10.b-z11.b }, { z20.b-z21.b }
+// CHECK-ENCODING: [0x4d,0x55,0xb4,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1b4554d <unknown>
+
+usdot   za.s[w10, 5], {z10.b-z11.b}, {z20.b-z21.b}  // 11000001-10110100-01010101-01001101
+// CHECK-INST: usdot   za.s[w10, 5, vgx2], { z10.b-z11.b }, { z20.b-z21.b }
+// CHECK-ENCODING: [0x4d,0x55,0xb4,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1b4554d <unknown>
+
+usdot   za.s[w11, 7, vgx2], {z12.b-z13.b}, {z8.b-z9.b}  // 11000001-10101000-01110101-10001111
+// CHECK-INST: usdot   za.s[w11, 7, vgx2], { z12.b-z13.b }, { z8.b-z9.b }
+// CHECK-ENCODING: [0x8f,0x75,0xa8,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1a8758f <unknown>
+
+usdot   za.s[w11, 7], {z12.b-z13.b}, {z8.b-z9.b}  // 11000001-10101000-01110101-10001111
+// CHECK-INST: usdot   za.s[w11, 7, vgx2], { z12.b-z13.b }, { z8.b-z9.b }
+// CHECK-ENCODING: [0x8f,0x75,0xa8,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1a8758f <unknown>
+
+usdot   za.s[w11, 7, vgx2], {z30.b-z31.b}, {z30.b-z31.b}  // 11000001-10111110-01110111-11001111
+// CHECK-INST: usdot   za.s[w11, 7, vgx2], { z30.b-z31.b }, { z30.b-z31.b }
+// CHECK-ENCODING: [0xcf,0x77,0xbe,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1be77cf <unknown>
+
+usdot   za.s[w11, 7], {z30.b-z31.b}, {z30.b-z31.b}  // 11000001-10111110-01110111-11001111
+// CHECK-INST: usdot   za.s[w11, 7, vgx2], { z30.b-z31.b }, { z30.b-z31.b }
+// CHECK-ENCODING: [0xcf,0x77,0xbe,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1be77cf <unknown>
+
+usdot   za.s[w8, 5, vgx2], {z16.b-z17.b}, {z16.b-z17.b}  // 11000001-10110000-00010110-00001101
+// CHECK-INST: usdot   za.s[w8, 5, vgx2], { z16.b-z17.b }, { z16.b-z17.b }
+// CHECK-ENCODING: [0x0d,0x16,0xb0,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1b0160d <unknown>
+
+usdot   za.s[w8, 5], {z16.b-z17.b}, {z16.b-z17.b}  // 11000001-10110000-00010110-00001101
+// CHECK-INST: usdot   za.s[w8, 5, vgx2], { z16.b-z17.b }, { z16.b-z17.b }
+// CHECK-ENCODING: [0x0d,0x16,0xb0,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1b0160d <unknown>
+
+usdot   za.s[w8, 1, vgx2], {z0.b-z1.b}, {z30.b-z31.b}  // 11000001-10111110-00010100-00001001
+// CHECK-INST: usdot   za.s[w8, 1, vgx2], { z0.b-z1.b }, { z30.b-z31.b }
+// CHECK-ENCODING: [0x09,0x14,0xbe,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1be1409 <unknown>
+
+usdot   za.s[w8, 1], {z0.b-z1.b}, {z30.b-z31.b}  // 11000001-10111110-00010100-00001001
+// CHECK-INST: usdot   za.s[w8, 1, vgx2], { z0.b-z1.b }, { z30.b-z31.b }
+// CHECK-ENCODING: [0x09,0x14,0xbe,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1be1409 <unknown>
+
+usdot   za.s[w10, 0, vgx2], {z18.b-z19.b}, {z20.b-z21.b}  // 11000001-10110100-01010110-01001000
+// CHECK-INST: usdot   za.s[w10, 0, vgx2], { z18.b-z19.b }, { z20.b-z21.b }
+// CHECK-ENCODING: [0x48,0x56,0xb4,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1b45648 <unknown>
+
+usdot   za.s[w10, 0], {z18.b-z19.b}, {z20.b-z21.b}  // 11000001-10110100-01010110-01001000
+// CHECK-INST: usdot   za.s[w10, 0, vgx2], { z18.b-z19.b }, { z20.b-z21.b }
+// CHECK-ENCODING: [0x48,0x56,0xb4,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1b45648 <unknown>
+
+usdot   za.s[w8, 0, vgx2], {z12.b-z13.b}, {z2.b-z3.b}  // 11000001-10100010-00010101-10001000
+// CHECK-INST: usdot   za.s[w8, 0, vgx2], { z12.b-z13.b }, { z2.b-z3.b }
+// CHECK-ENCODING: [0x88,0x15,0xa2,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1a21588 <unknown>
+
+usdot   za.s[w8, 0], {z12.b-z13.b}, {z2.b-z3.b}  // 11000001-10100010-00010101-10001000
+// CHECK-INST: usdot   za.s[w8, 0, vgx2], { z12.b-z13.b }, { z2.b-z3.b }
+// CHECK-ENCODING: [0x88,0x15,0xa2,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1a21588 <unknown>
+
+usdot   za.s[w10, 1, vgx2], {z0.b-z1.b}, {z26.b-z27.b}  // 11000001-10111010-01010100-00001001
+// CHECK-INST: usdot   za.s[w10, 1, vgx2], { z0.b-z1.b }, { z26.b-z27.b }
+// CHECK-ENCODING: [0x09,0x54,0xba,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1ba5409 <unknown>
+
+usdot   za.s[w10, 1], {z0.b-z1.b}, {z26.b-z27.b}  // 11000001-10111010-01010100-00001001
+// CHECK-INST: usdot   za.s[w10, 1, vgx2], { z0.b-z1.b }, { z26.b-z27.b }
+// CHECK-ENCODING: [0x09,0x54,0xba,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1ba5409 <unknown>
+
+usdot   za.s[w8, 5, vgx2], {z22.b-z23.b}, {z30.b-z31.b}  // 11000001-10111110-00010110-11001101
+// CHECK-INST: usdot   za.s[w8, 5, vgx2], { z22.b-z23.b }, { z30.b-z31.b }
+// CHECK-ENCODING: [0xcd,0x16,0xbe,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1be16cd <unknown>
+
+usdot   za.s[w8, 5], {z22.b-z23.b}, {z30.b-z31.b}  // 11000001-10111110-00010110-11001101
+// CHECK-INST: usdot   za.s[w8, 5, vgx2], { z22.b-z23.b }, { z30.b-z31.b }
+// CHECK-ENCODING: [0xcd,0x16,0xbe,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1be16cd <unknown>
+
+usdot   za.s[w11, 2, vgx2], {z8.b-z9.b}, {z0.b-z1.b}  // 11000001-10100000-01110101-00001010
+// CHECK-INST: usdot   za.s[w11, 2, vgx2], { z8.b-z9.b }, { z0.b-z1.b }
+// CHECK-ENCODING: [0x0a,0x75,0xa0,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1a0750a <unknown>
+
+usdot   za.s[w11, 2], {z8.b-z9.b}, {z0.b-z1.b}  // 11000001-10100000-01110101-00001010
+// CHECK-INST: usdot   za.s[w11, 2, vgx2], { z8.b-z9.b }, { z0.b-z1.b }
+// CHECK-ENCODING: [0x0a,0x75,0xa0,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1a0750a <unknown>
+
+usdot   za.s[w9, 7, vgx2], {z12.b-z13.b}, {z10.b-z11.b}  // 11000001-10101010-00110101-10001111
+// CHECK-INST: usdot   za.s[w9, 7, vgx2], { z12.b-z13.b }, { z10.b-z11.b }
+// CHECK-ENCODING: [0x8f,0x35,0xaa,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1aa358f <unknown>
+
+usdot   za.s[w9, 7], {z12.b-z13.b}, {z10.b-z11.b}  // 11000001-10101010-00110101-10001111
+// CHECK-INST: usdot   za.s[w9, 7, vgx2], { z12.b-z13.b }, { z10.b-z11.b }
+// CHECK-ENCODING: [0x8f,0x35,0xaa,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1aa358f <unknown>
+
+
+usdot   za.s[w8, 0, vgx4], {z0.b-z3.b}, z0.b  // 11000001-00110000-00010100-00001000
+// CHECK-INST: usdot   za.s[w8, 0, vgx4], { z0.b-z3.b }, z0.b
+// CHECK-ENCODING: [0x08,0x14,0x30,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1301408 <unknown>
+
+usdot   za.s[w8, 0], {z0.b-z3.b}, z0.b  // 11000001-00110000-00010100-00001000
+// CHECK-INST: usdot   za.s[w8, 0, vgx4], { z0.b-z3.b }, z0.b
+// CHECK-ENCODING: [0x08,0x14,0x30,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1301408 <unknown>
+
+usdot   za.s[w10, 5, vgx4], {z10.b-z13.b}, z5.b  // 11000001-00110101-01010101-01001101
+// CHECK-INST: usdot   za.s[w10, 5, vgx4], { z10.b-z13.b }, z5.b
+// CHECK-ENCODING: [0x4d,0x55,0x35,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c135554d <unknown>
+
+usdot   za.s[w10, 5], {z10.b-z13.b}, z5.b  // 11000001-00110101-01010101-01001101
+// CHECK-INST: usdot   za.s[w10, 5, vgx4], { z10.b-z13.b }, z5.b
+// CHECK-ENCODING: [0x4d,0x55,0x35,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c135554d <unknown>
+
+usdot   za.s[w11, 7, vgx4], {z13.b-z16.b}, z8.b  // 11000001-00111000-01110101-10101111
+// CHECK-INST: usdot   za.s[w11, 7, vgx4], { z13.b-z16.b }, z8.b
+// CHECK-ENCODING: [0xaf,0x75,0x38,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13875af <unknown>
+
+usdot   za.s[w11, 7], {z13.b-z16.b}, z8.b  // 11000001-00111000-01110101-10101111
+// CHECK-INST: usdot   za.s[w11, 7, vgx4], { z13.b-z16.b }, z8.b
+// CHECK-ENCODING: [0xaf,0x75,0x38,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13875af <unknown>
+
+usdot   za.s[w11, 7, vgx4], {z31.b-z2.b}, z15.b  // 11000001-00111111-01110111-11101111
+// CHECK-INST: usdot   za.s[w11, 7, vgx4], { z31.b-z2.b }, z15.b
+// CHECK-ENCODING: [0xef,0x77,0x3f,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13f77ef <unknown>
+
+usdot   za.s[w11, 7], {z31.b-z2.b}, z15.b  // 11000001-00111111-01110111-11101111
+// CHECK-INST: usdot   za.s[w11, 7, vgx4], { z31.b-z2.b }, z15.b
+// CHECK-ENCODING: [0xef,0x77,0x3f,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13f77ef <unknown>
+
+usdot   za.s[w8, 5, vgx4], {z17.b-z20.b}, z0.b  // 11000001-00110000-00010110-00101101
+// CHECK-INST: usdot   za.s[w8, 5, vgx4], { z17.b-z20.b }, z0.b
+// CHECK-ENCODING: [0x2d,0x16,0x30,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c130162d <unknown>
+
+usdot   za.s[w8, 5], {z17.b-z20.b}, z0.b  // 11000001-00110000-00010110-00101101
+// CHECK-INST: usdot   za.s[w8, 5, vgx4], { z17.b-z20.b }, z0.b
+// CHECK-ENCODING: [0x2d,0x16,0x30,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c130162d <unknown>
+
+usdot   za.s[w8, 1, vgx4], {z1.b-z4.b}, z14.b  // 11000001-00111110-00010100-00101001
+// CHECK-INST: usdot   za.s[w8, 1, vgx4], { z1.b-z4.b }, z14.b
+// CHECK-ENCODING: [0x29,0x14,0x3e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13e1429 <unknown>
+
+usdot   za.s[w8, 1], {z1.b-z4.b}, z14.b  // 11000001-00111110-00010100-00101001
+// CHECK-INST: usdot   za.s[w8, 1, vgx4], { z1.b-z4.b }, z14.b
+// CHECK-ENCODING: [0x29,0x14,0x3e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13e1429 <unknown>
+
+usdot   za.s[w10, 0, vgx4], {z19.b-z22.b}, z4.b  // 11000001-00110100-01010110-01101000
+// CHECK-INST: usdot   za.s[w10, 0, vgx4], { z19.b-z22.b }, z4.b
+// CHECK-ENCODING: [0x68,0x56,0x34,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1345668 <unknown>
+
+usdot   za.s[w10, 0], {z19.b-z22.b}, z4.b  // 11000001-00110100-01010110-01101000
+// CHECK-INST: usdot   za.s[w10, 0, vgx4], { z19.b-z22.b }, z4.b
+// CHECK-ENCODING: [0x68,0x56,0x34,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1345668 <unknown>
+
+usdot   za.s[w8, 0, vgx4], {z12.b-z15.b}, z2.b  // 11000001-00110010-00010101-10001000
+// CHECK-INST: usdot   za.s[w8, 0, vgx4], { z12.b-z15.b }, z2.b
+// CHECK-ENCODING: [0x88,0x15,0x32,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1321588 <unknown>
+
+usdot   za.s[w8, 0], {z12.b-z15.b}, z2.b  // 11000001-00110010-00010101-10001000
+// CHECK-INST: usdot   za.s[w8, 0, vgx4], { z12.b-z15.b }, z2.b
+// CHECK-ENCODING: [0x88,0x15,0x32,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1321588 <unknown>
+
+usdot   za.s[w10, 1, vgx4], {z1.b-z4.b}, z10.b  // 11000001-00111010-01010100-00101001
+// CHECK-INST: usdot   za.s[w10, 1, vgx4], { z1.b-z4.b }, z10.b
+// CHECK-ENCODING: [0x29,0x54,0x3a,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13a5429 <unknown>
+
+usdot   za.s[w10, 1], {z1.b-z4.b}, z10.b  // 11000001-00111010-01010100-00101001
+// CHECK-INST: usdot   za.s[w10, 1, vgx4], { z1.b-z4.b }, z10.b
+// CHECK-ENCODING: [0x29,0x54,0x3a,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13a5429 <unknown>
+
+usdot   za.s[w8, 5, vgx4], {z22.b-z25.b}, z14.b  // 11000001-00111110-00010110-11001101
+// CHECK-INST: usdot   za.s[w8, 5, vgx4], { z22.b-z25.b }, z14.b
+// CHECK-ENCODING: [0xcd,0x16,0x3e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13e16cd <unknown>
+
+usdot   za.s[w8, 5], {z22.b-z25.b}, z14.b  // 11000001-00111110-00010110-11001101
+// CHECK-INST: usdot   za.s[w8, 5, vgx4], { z22.b-z25.b }, z14.b
+// CHECK-ENCODING: [0xcd,0x16,0x3e,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13e16cd <unknown>
+
+usdot   za.s[w11, 2, vgx4], {z9.b-z12.b}, z1.b  // 11000001-00110001-01110101-00101010
+// CHECK-INST: usdot   za.s[w11, 2, vgx4], { z9.b-z12.b }, z1.b
+// CHECK-ENCODING: [0x2a,0x75,0x31,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c131752a <unknown>
+
+usdot   za.s[w11, 2], {z9.b-z12.b}, z1.b  // 11000001-00110001-01110101-00101010
+// CHECK-INST: usdot   za.s[w11, 2, vgx4], { z9.b-z12.b }, z1.b
+// CHECK-ENCODING: [0x2a,0x75,0x31,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c131752a <unknown>
+
+usdot   za.s[w9, 7, vgx4], {z12.b-z15.b}, z11.b  // 11000001-00111011-00110101-10001111
+// CHECK-INST: usdot   za.s[w9, 7, vgx4], { z12.b-z15.b }, z11.b
+// CHECK-ENCODING: [0x8f,0x35,0x3b,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13b358f <unknown>
+
+usdot   za.s[w9, 7], {z12.b-z15.b}, z11.b  // 11000001-00111011-00110101-10001111
+// CHECK-INST: usdot   za.s[w9, 7, vgx4], { z12.b-z15.b }, z11.b
+// CHECK-ENCODING: [0x8f,0x35,0x3b,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c13b358f <unknown>
+
+
 usdot   za.s[w8, 0, vgx4], {z0.b-z3.b}, z0.b[0]  // 11000001-01010000-10010000-00101000
 // CHECK-INST: usdot   za.s[w8, 0, vgx4], { z0.b-z3.b }, z0.b[0]
 // CHECK-ENCODING: [0x28,0x90,0x50,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1509028 <unknown>
 
 usdot   za.s[w8, 0], {z0.b-z3.b}, z0.b[0]  // 11000001-01010000-10010000-00101000
 // CHECK-INST: usdot   za.s[w8, 0, vgx4], { z0.b-z3.b }, z0.b[0]

 // CHECK-UNKNOWN: c15bb9af <unknown>
 
 usdot   za.s[w9, 7], {z12.b-z15.b}, z11.b[2]  // 11000001-01011011-10111001-10101111
 // CHECK-INST: usdot   za.s[w9, 7, vgx4], { z12.b-z15.b }, z11.b[2]
 // CHECK-ENCODING: [0xaf,0xb9,0x5b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c15bb9af <unknown>
 
+
+usdot   za.s[w8, 0, vgx4], {z0.b-z3.b}, {z0.b-z3.b}  // 11000001-10100001-00010100-00001000
+// CHECK-INST: usdot   za.s[w8, 0, vgx4], { z0.b-z3.b }, { z0.b-z3.b }
+// CHECK-ENCODING: [0x08,0x14,0xa1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1a11408 <unknown>
+
+usdot   za.s[w8, 0], {z0.b-z3.b}, {z0.b-z3.b}  // 11000001-10100001-00010100-00001000
+// CHECK-INST: usdot   za.s[w8, 0, vgx4], { z0.b-z3.b }, { z0.b-z3.b }
+// CHECK-ENCODING: [0x08,0x14,0xa1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1a11408 <unknown>
+
+usdot   za.s[w10, 5, vgx4], {z8.b-z11.b}, {z20.b-z23.b}  // 11000001-10110101-01010101-00001101
+// CHECK-INST: usdot   za.s[w10, 5, vgx4], { z8.b-z11.b }, { z20.b-z23.b }
+// CHECK-ENCODING: [0x0d,0x55,0xb5,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1b5550d <unknown>
+
+usdot   za.s[w10, 5], {z8.b-z11.b}, {z20.b-z23.b}  // 11000001-10110101-01010101-00001101
+// CHECK-INST: usdot   za.s[w10, 5, vgx4], { z8.b-z11.b }, { z20.b-z23.b }
+// CHECK-ENCODING: [0x0d,0x55,0xb5,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1b5550d <unknown>
+
+usdot   za.s[w11, 7, vgx4], {z12.b-z15.b}, {z8.b-z11.b}  // 11000001-10101001-01110101-10001111
+// CHECK-INST: usdot   za.s[w11, 7, vgx4], { z12.b-z15.b }, { z8.b-z11.b }
+// CHECK-ENCODING: [0x8f,0x75,0xa9,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1a9758f <unknown>
+
+usdot   za.s[w11, 7], {z12.b-z15.b}, {z8.b-z11.b}  // 11000001-10101001-01110101-10001111
+// CHECK-INST: usdot   za.s[w11, 7, vgx4], { z12.b-z15.b }, { z8.b-z11.b }
+// CHECK-ENCODING: [0x8f,0x75,0xa9,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1a9758f <unknown>
+
+usdot   za.s[w11, 7, vgx4], {z28.b-z31.b}, {z28.b-z31.b}  // 11000001-10111101-01110111-10001111
+// CHECK-INST: usdot   za.s[w11, 7, vgx4], { z28.b-z31.b }, { z28.b-z31.b }
+// CHECK-ENCODING: [0x8f,0x77,0xbd,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1bd778f <unknown>
+
+usdot   za.s[w11, 7], {z28.b-z31.b}, {z28.b-z31.b}  // 11000001-10111101-01110111-10001111
+// CHECK-INST: usdot   za.s[w11, 7, vgx4], { z28.b-z31.b }, { z28.b-z31.b }
+// CHECK-ENCODING: [0x8f,0x77,0xbd,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1bd778f <unknown>
+
+usdot   za.s[w8, 5, vgx4], {z16.b-z19.b}, {z16.b-z19.b}  // 11000001-10110001-00010110-00001101
+// CHECK-INST: usdot   za.s[w8, 5, vgx4], { z16.b-z19.b }, { z16.b-z19.b }
+// CHECK-ENCODING: [0x0d,0x16,0xb1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1b1160d <unknown>
+
+usdot   za.s[w8, 5], {z16.b-z19.b}, {z16.b-z19.b}  // 11000001-10110001-00010110-00001101
+// CHECK-INST: usdot   za.s[w8, 5, vgx4], { z16.b-z19.b }, { z16.b-z19.b }
+// CHECK-ENCODING: [0x0d,0x16,0xb1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1b1160d <unknown>
+
+usdot   za.s[w8, 1, vgx4], {z0.b-z3.b}, {z28.b-z31.b}  // 11000001-10111101-00010100-00001001
+// CHECK-INST: usdot   za.s[w8, 1, vgx4], { z0.b-z3.b }, { z28.b-z31.b }
+// CHECK-ENCODING: [0x09,0x14,0xbd,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1bd1409 <unknown>
+
+usdot   za.s[w8, 1], {z0.b-z3.b}, {z28.b-z31.b}  // 11000001-10111101-00010100-00001001
+// CHECK-INST: usdot   za.s[w8, 1, vgx4], { z0.b-z3.b }, { z28.b-z31.b }
+// CHECK-ENCODING: [0x09,0x14,0xbd,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1bd1409 <unknown>
+
+usdot   za.s[w10, 0, vgx4], {z16.b-z19.b}, {z20.b-z23.b}  // 11000001-10110101-01010110-00001000
+// CHECK-INST: usdot   za.s[w10, 0, vgx4], { z16.b-z19.b }, { z20.b-z23.b }
+// CHECK-ENCODING: [0x08,0x56,0xb5,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1b55608 <unknown>
+
+usdot   za.s[w10, 0], {z16.b-z19.b}, {z20.b-z23.b}  // 11000001-10110101-01010110-00001000
+// CHECK-INST: usdot   za.s[w10, 0, vgx4], { z16.b-z19.b }, { z20.b-z23.b }
+// CHECK-ENCODING: [0x08,0x56,0xb5,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1b55608 <unknown>
+
+usdot   za.s[w8, 0, vgx4], {z12.b-z15.b}, {z0.b-z3.b}  // 11000001-10100001-00010101-10001000
+// CHECK-INST: usdot   za.s[w8, 0, vgx4], { z12.b-z15.b }, { z0.b-z3.b }
+// CHECK-ENCODING: [0x88,0x15,0xa1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1a11588 <unknown>
+
+usdot   za.s[w8, 0], {z12.b-z15.b}, {z0.b-z3.b}  // 11000001-10100001-00010101-10001000
+// CHECK-INST: usdot   za.s[w8, 0, vgx4], { z12.b-z15.b }, { z0.b-z3.b }
+// CHECK-ENCODING: [0x88,0x15,0xa1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1a11588 <unknown>
+
+usdot   za.s[w10, 1, vgx4], {z0.b-z3.b}, {z24.b-z27.b}  // 11000001-10111001-01010100-00001001
+// CHECK-INST: usdot   za.s[w10, 1, vgx4], { z0.b-z3.b }, { z24.b-z27.b }
+// CHECK-ENCODING: [0x09,0x54,0xb9,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1b95409 <unknown>
+
+usdot   za.s[w10, 1], {z0.b-z3.b}, {z24.b-z27.b}  // 11000001-10111001-01010100-00001001
+// CHECK-INST: usdot   za.s[w10, 1, vgx4], { z0.b-z3.b }, { z24.b-z27.b }
+// CHECK-ENCODING: [0x09,0x54,0xb9,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1b95409 <unknown>
+
+usdot   za.s[w8, 5, vgx4], {z20.b-z23.b}, {z28.b-z31.b}  // 11000001-10111101-00010110-10001101
+// CHECK-INST: usdot   za.s[w8, 5, vgx4], { z20.b-z23.b }, { z28.b-z31.b }
+// CHECK-ENCODING: [0x8d,0x16,0xbd,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1bd168d <unknown>
+
+usdot   za.s[w8, 5], {z20.b-z23.b}, {z28.b-z31.b}  // 11000001-10111101-00010110-10001101
+// CHECK-INST: usdot   za.s[w8, 5, vgx4], { z20.b-z23.b }, { z28.b-z31.b }
+// CHECK-ENCODING: [0x8d,0x16,0xbd,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1bd168d <unknown>
+
+usdot   za.s[w11, 2, vgx4], {z8.b-z11.b}, {z0.b-z3.b}  // 11000001-10100001-01110101-00001010
+// CHECK-INST: usdot   za.s[w11, 2, vgx4], { z8.b-z11.b }, { z0.b-z3.b }
+// CHECK-ENCODING: [0x0a,0x75,0xa1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1a1750a <unknown>
+
+usdot   za.s[w11, 2], {z8.b-z11.b}, {z0.b-z3.b}  // 11000001-10100001-01110101-00001010
+// CHECK-INST: usdot   za.s[w11, 2, vgx4], { z8.b-z11.b }, { z0.b-z3.b }
+// CHECK-ENCODING: [0x0a,0x75,0xa1,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1a1750a <unknown>
+
+usdot   za.s[w9, 7, vgx4], {z12.b-z15.b}, {z8.b-z11.b}  // 11000001-10101001-00110101-10001111
+// CHECK-INST: usdot   za.s[w9, 7, vgx4], { z12.b-z15.b }, { z8.b-z11.b }
+// CHECK-ENCODING: [0x8f,0x35,0xa9,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1a9358f <unknown>
+
+usdot   za.s[w9, 7], {z12.b-z15.b}, {z8.b-z11.b}  // 11000001-10101001-00110101-10001111
+// CHECK-INST: usdot   za.s[w9, 7, vgx4], { z12.b-z15.b }, { z8.b-z11.b }
+// CHECK-ENCODING: [0x8f,0x35,0xa9,0xc1]
+// CHECK-ERROR: instruction requires: sme2
+// CHECK-UNKNOWN: c1a9358f <unknown>
+