llvm/test/MC/AArch64/SME2/smlsll.s - llvm-project - Git at Google

 // RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+sme2,+sme-i16i64 < %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-i16i64 < %s \
 // RUN:        | llvm-objdump --no-print-imm-hex -d --mattr=+sme2,+sme-i16i64 - | FileCheck %s --check-prefix=CHECK-INST
 // RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+sme2,+sme-i16i64 < %s \
 // RUN:        | llvm-objdump --no-print-imm-hex -d --mattr=-sme2 - | FileCheck %s --check-prefix=CHECK-UNKNOWN
 // RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+sme2,+sme-i16i64 < %s \
 // RUN:        | sed '/.text/d' | sed 's/.*encoding: //g' \
 // RUN:        | llvm-mc -triple=aarch64 -mattr=+sme2,+sme-i16i64 -disassemble -show-encoding \
 // RUN:        | FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST


 smlsll  za.s[w8, 0:3], z0.b, z0.b  // 11000001-00100000-00000100-00001000
 // CHECK-INST: smlsll  za.s[w8, 0:3], z0.b, z0.b
 // CHECK-ENCODING: [0x08,0x04,0x20,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1200408 <unknown>

 smlsll  za.s[w10, 4:7], z10.b, z5.b  // 11000001-00100101-01000101-01001001
 // CHECK-INST: smlsll  za.s[w10, 4:7], z10.b, z5.b
 // CHECK-ENCODING: [0x49,0x45,0x25,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1254549 <unknown>

 smlsll  za.s[w11, 12:15], z13.b, z8.b  // 11000001-00101000-01100101-10101011
 // CHECK-INST: smlsll  za.s[w11, 12:15], z13.b, z8.b
 // CHECK-ENCODING: [0xab,0x65,0x28,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c12865ab <unknown>

 smlsll  za.s[w11, 12:15], z31.b, z15.b  // 11000001-00101111-01100111-11101011
 // CHECK-INST: smlsll  za.s[w11, 12:15], z31.b, z15.b
 // CHECK-ENCODING: [0xeb,0x67,0x2f,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c12f67eb <unknown>

 smlsll  za.s[w8, 4:7], z17.b, z0.b  // 11000001-00100000-00000110-00101001
 // CHECK-INST: smlsll  za.s[w8, 4:7], z17.b, z0.b
 // CHECK-ENCODING: [0x29,0x06,0x20,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1200629 <unknown>

 smlsll  za.s[w8, 4:7], z1.b, z14.b  // 11000001-00101110-00000100-00101001
 // CHECK-INST: smlsll  za.s[w8, 4:7], z1.b, z14.b
 // CHECK-ENCODING: [0x29,0x04,0x2e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c12e0429 <unknown>

 smlsll  za.s[w10, 0:3], z19.b, z4.b  // 11000001-00100100-01000110-01101000
 // CHECK-INST: smlsll  za.s[w10, 0:3], z19.b, z4.b
 // CHECK-ENCODING: [0x68,0x46,0x24,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1244668 <unknown>

 smlsll  za.s[w8, 0:3], z12.b, z2.b  // 11000001-00100010-00000101-10001000
 // CHECK-INST: smlsll  za.s[w8, 0:3], z12.b, z2.b
 // CHECK-ENCODING: [0x88,0x05,0x22,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1220588 <unknown>

 smlsll  za.s[w10, 4:7], z1.b, z10.b  // 11000001-00101010-01000100-00101001
 // CHECK-INST: smlsll  za.s[w10, 4:7], z1.b, z10.b
 // CHECK-ENCODING: [0x29,0x44,0x2a,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c12a4429 <unknown>

 smlsll  za.s[w8, 4:7], z22.b, z14.b  // 11000001-00101110-00000110-11001001
 // CHECK-INST: smlsll  za.s[w8, 4:7], z22.b, z14.b
 // CHECK-ENCODING: [0xc9,0x06,0x2e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c12e06c9 <unknown>

 smlsll  za.s[w11, 8:11], z9.b, z1.b  // 11000001-00100001-01100101-00101010
 // CHECK-INST: smlsll  za.s[w11, 8:11], z9.b, z1.b
 // CHECK-ENCODING: [0x2a,0x65,0x21,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c121652a <unknown>

 smlsll  za.s[w9, 12:15], z12.b, z11.b  // 11000001-00101011-00100101-10001011
 // CHECK-INST: smlsll  za.s[w9, 12:15], z12.b, z11.b
 // CHECK-ENCODING: [0x8b,0x25,0x2b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c12b258b <unknown>


 smlsll  za.s[w8, 0:3], z0.b, z0.b[0]  // 11000001-00000000-00000000-00001000
 // CHECK-INST: smlsll  za.s[w8, 0:3], z0.b, z0.b[0]
 // CHECK-ENCODING: [0x08,0x00,0x00,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1000008 <unknown>

 smlsll  za.s[w10, 4:7], z10.b, z5.b[5]  // 11000001-00000101-01010101-01001001
 // CHECK-INST: smlsll  za.s[w10, 4:7], z10.b, z5.b[5]
 // CHECK-ENCODING: [0x49,0x55,0x05,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1055549 <unknown>

 smlsll  za.s[w11, 12:15], z13.b, z8.b[11]  // 11000001-00001000-11101101-10101011
 // CHECK-INST: smlsll  za.s[w11, 12:15], z13.b, z8.b[11]
 // CHECK-ENCODING: [0xab,0xed,0x08,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c108edab <unknown>

 smlsll  za.s[w11, 12:15], z31.b, z15.b[15]  // 11000001-00001111-11111111-11101011
 // CHECK-INST: smlsll  za.s[w11, 12:15], z31.b, z15.b[15]
 // CHECK-ENCODING: [0xeb,0xff,0x0f,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c10fffeb <unknown>

 smlsll  za.s[w8, 4:7], z17.b, z0.b[3]  // 11000001-00000000-00001110-00101001
 // CHECK-INST: smlsll  za.s[w8, 4:7], z17.b, z0.b[3]
 // CHECK-ENCODING: [0x29,0x0e,0x00,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1000e29 <unknown>

 smlsll  za.s[w8, 4:7], z1.b, z14.b[9]  // 11000001-00001110-10000100-00101001
 // CHECK-INST: smlsll  za.s[w8, 4:7], z1.b, z14.b[9]
 // CHECK-ENCODING: [0x29,0x84,0x0e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c10e8429 <unknown>

 smlsll  za.s[w10, 0:3], z19.b, z4.b[5]  // 11000001-00000100-01010110-01101000
 // CHECK-INST: smlsll  za.s[w10, 0:3], z19.b, z4.b[5]
 // CHECK-ENCODING: [0x68,0x56,0x04,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1045668 <unknown>

 smlsll  za.s[w8, 0:3], z12.b, z2.b[6]  // 11000001-00000010-00011001-10001000
 // CHECK-INST: smlsll  za.s[w8, 0:3], z12.b, z2.b[6]
 // CHECK-ENCODING: [0x88,0x19,0x02,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1021988 <unknown>

 smlsll  za.s[w10, 4:7], z1.b, z10.b[10]  // 11000001-00001010-11001000-00101001
 // CHECK-INST: smlsll  za.s[w10, 4:7], z1.b, z10.b[10]
 // CHECK-ENCODING: [0x29,0xc8,0x0a,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c10ac829 <unknown>

 smlsll  za.s[w8, 4:7], z22.b, z14.b[2]  // 11000001-00001110-00001010-11001001
 // CHECK-INST: smlsll  za.s[w8, 4:7], z22.b, z14.b[2]
 // CHECK-ENCODING: [0xc9,0x0a,0x0e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c10e0ac9 <unknown>

 smlsll  za.s[w11, 8:11], z9.b, z1.b[13]  // 11000001-00000001-11110101-00101010
 // CHECK-INST: smlsll  za.s[w11, 8:11], z9.b, z1.b[13]
 // CHECK-ENCODING: [0x2a,0xf5,0x01,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c101f52a <unknown>

 smlsll  za.s[w9, 12:15], z12.b, z11.b[10]  // 11000001-00001011-10101001-10001011
 // CHECK-INST: smlsll  za.s[w9, 12:15], z12.b, z11.b[10]
 // CHECK-ENCODING: [0x8b,0xa9,0x0b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c10ba98b <unknown>


 smlsll  za.d[w8, 0:3], z0.h, z0.h  // 11000001-01100000-00000100-00001000
 // CHECK-INST: smlsll  za.d[w8, 0:3], z0.h, z0.h
 // CHECK-ENCODING: [0x08,0x04,0x60,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1600408 <unknown>

 smlsll  za.d[w10, 4:7], z10.h, z5.h  // 11000001-01100101-01000101-01001001
 // CHECK-INST: smlsll  za.d[w10, 4:7], z10.h, z5.h
 // CHECK-ENCODING: [0x49,0x45,0x65,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1654549 <unknown>

 smlsll  za.d[w11, 12:15], z13.h, z8.h  // 11000001-01101000-01100101-10101011
 // CHECK-INST: smlsll  za.d[w11, 12:15], z13.h, z8.h
 // CHECK-ENCODING: [0xab,0x65,0x68,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c16865ab <unknown>

 smlsll  za.d[w11, 12:15], z31.h, z15.h  // 11000001-01101111-01100111-11101011
 // CHECK-INST: smlsll  za.d[w11, 12:15], z31.h, z15.h
 // CHECK-ENCODING: [0xeb,0x67,0x6f,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c16f67eb <unknown>

 smlsll  za.d[w8, 4:7], z17.h, z0.h  // 11000001-01100000-00000110-00101001
 // CHECK-INST: smlsll  za.d[w8, 4:7], z17.h, z0.h
 // CHECK-ENCODING: [0x29,0x06,0x60,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1600629 <unknown>

 smlsll  za.d[w8, 4:7], z1.h, z14.h  // 11000001-01101110-00000100-00101001
 // CHECK-INST: smlsll  za.d[w8, 4:7], z1.h, z14.h
 // CHECK-ENCODING: [0x29,0x04,0x6e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c16e0429 <unknown>

 smlsll  za.d[w10, 0:3], z19.h, z4.h  // 11000001-01100100-01000110-01101000
 // CHECK-INST: smlsll  za.d[w10, 0:3], z19.h, z4.h
 // CHECK-ENCODING: [0x68,0x46,0x64,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1644668 <unknown>

 smlsll  za.d[w8, 0:3], z12.h, z2.h  // 11000001-01100010-00000101-10001000
 // CHECK-INST: smlsll  za.d[w8, 0:3], z12.h, z2.h
 // CHECK-ENCODING: [0x88,0x05,0x62,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1620588 <unknown>

 smlsll  za.d[w10, 4:7], z1.h, z10.h  // 11000001-01101010-01000100-00101001
 // CHECK-INST: smlsll  za.d[w10, 4:7], z1.h, z10.h
 // CHECK-ENCODING: [0x29,0x44,0x6a,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c16a4429 <unknown>

 smlsll  za.d[w8, 4:7], z22.h, z14.h  // 11000001-01101110-00000110-11001001
 // CHECK-INST: smlsll  za.d[w8, 4:7], z22.h, z14.h
 // CHECK-ENCODING: [0xc9,0x06,0x6e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c16e06c9 <unknown>

 smlsll  za.d[w11, 8:11], z9.h, z1.h  // 11000001-01100001-01100101-00101010
 // CHECK-INST: smlsll  za.d[w11, 8:11], z9.h, z1.h
 // CHECK-ENCODING: [0x2a,0x65,0x61,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c161652a <unknown>

 smlsll  za.d[w9, 12:15], z12.h, z11.h  // 11000001-01101011-00100101-10001011
 // CHECK-INST: smlsll  za.d[w9, 12:15], z12.h, z11.h
 // CHECK-ENCODING: [0x8b,0x25,0x6b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c16b258b <unknown>


 smlsll  za.d[w8, 0:3], z0.h, z0.h[0]  // 11000001-10000000-00000000-00001000
 // CHECK-INST: smlsll  za.d[w8, 0:3], z0.h, z0.h[0]
 // CHECK-ENCODING: [0x08,0x00,0x80,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1800008 <unknown>

 smlsll  za.d[w10, 4:7], z10.h, z5.h[1]  // 11000001-10000101-01000101-01001001
 // CHECK-INST: smlsll  za.d[w10, 4:7], z10.h, z5.h[1]
 // CHECK-ENCODING: [0x49,0x45,0x85,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1854549 <unknown>

 smlsll  za.d[w11, 12:15], z13.h, z8.h[7]  // 11000001-10001000-11101101-10101011
 // CHECK-INST: smlsll  za.d[w11, 12:15], z13.h, z8.h[7]
 // CHECK-ENCODING: [0xab,0xed,0x88,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c188edab <unknown>

 smlsll  za.d[w11, 12:15], z31.h, z15.h[7]  // 11000001-10001111-11101111-11101011
 // CHECK-INST: smlsll  za.d[w11, 12:15], z31.h, z15.h[7]
 // CHECK-ENCODING: [0xeb,0xef,0x8f,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c18fefeb <unknown>

 smlsll  za.d[w8, 4:7], z17.h, z0.h[3]  // 11000001-10000000-00001110-00101001
 // CHECK-INST: smlsll  za.d[w8, 4:7], z17.h, z0.h[3]
 // CHECK-ENCODING: [0x29,0x0e,0x80,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1800e29 <unknown>

 smlsll  za.d[w8, 4:7], z1.h, z14.h[5]  // 11000001-10001110-10000100-00101001
 // CHECK-INST: smlsll  za.d[w8, 4:7], z1.h, z14.h[5]
 // CHECK-ENCODING: [0x29,0x84,0x8e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c18e8429 <unknown>

 smlsll  za.d[w10, 0:3], z19.h, z4.h[1]  // 11000001-10000100-01000110-01101000
 // CHECK-INST: smlsll  za.d[w10, 0:3], z19.h, z4.h[1]
 // CHECK-ENCODING: [0x68,0x46,0x84,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1844668 <unknown>

 smlsll  za.d[w8, 0:3], z12.h, z2.h[2]  // 11000001-10000010-00001001-10001000
 // CHECK-INST: smlsll  za.d[w8, 0:3], z12.h, z2.h[2]
 // CHECK-ENCODING: [0x88,0x09,0x82,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1820988 <unknown>

 smlsll  za.d[w10, 4:7], z1.h, z10.h[6]  // 11000001-10001010-11001000-00101001
 // CHECK-INST: smlsll  za.d[w10, 4:7], z1.h, z10.h[6]
 // CHECK-ENCODING: [0x29,0xc8,0x8a,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c18ac829 <unknown>

 smlsll  za.d[w8, 4:7], z22.h, z14.h[2]  // 11000001-10001110-00001010-11001001
 // CHECK-INST: smlsll  za.d[w8, 4:7], z22.h, z14.h[2]
 // CHECK-ENCODING: [0xc9,0x0a,0x8e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c18e0ac9 <unknown>

 smlsll  za.d[w11, 8:11], z9.h, z1.h[5]  // 11000001-10000001-11100101-00101010
 // CHECK-INST: smlsll  za.d[w11, 8:11], z9.h, z1.h[5]
 // CHECK-ENCODING: [0x2a,0xe5,0x81,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c181e52a <unknown>

 smlsll  za.d[w9, 12:15], z12.h, z11.h[6]  // 11000001-10001011-10101001-10001011
 // CHECK-INST: smlsll  za.d[w9, 12:15], z12.h, z11.h[6]
 // CHECK-ENCODING: [0x8b,0xa9,0x8b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c18ba98b <unknown>


 smlsll  za.s[w8, 0:3, vgx2], {z0.b, z1.b}, z0.b  // 11000001-00100000-00000000-00001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx2], { z0.b, z1.b }, z0.b
 // CHECK-ENCODING: [0x08,0x00,0x20,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1200008 <unknown>

 smlsll  za.s[w8, 0:3], {z0.b - z1.b}, z0.b  // 11000001-00100000-00000000-00001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx2], { z0.b, z1.b }, z0.b
 // CHECK-ENCODING: [0x08,0x00,0x20,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1200008 <unknown>

 smlsll  za.s[w10, 4:7, vgx2], {z10.b, z11.b}, z5.b  // 11000001-00100101-01000001-01001001
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx2], { z10.b, z11.b }, z5.b
 // CHECK-ENCODING: [0x49,0x41,0x25,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1254149 <unknown>

 smlsll  za.s[w10, 4:7], {z10.b - z11.b}, z5.b  // 11000001-00100101-01000001-01001001
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx2], { z10.b, z11.b }, z5.b
 // CHECK-ENCODING: [0x49,0x41,0x25,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1254149 <unknown>

 smlsll  za.s[w11, 4:7, vgx2], {z13.b, z14.b}, z8.b  // 11000001-00101000-01100001-10101001
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx2], { z13.b, z14.b }, z8.b
 // CHECK-ENCODING: [0xa9,0x61,0x28,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c12861a9 <unknown>

 smlsll  za.s[w11, 4:7], {z13.b - z14.b}, z8.b  // 11000001-00101000-01100001-10101001
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx2], { z13.b, z14.b }, z8.b
 // CHECK-ENCODING: [0xa9,0x61,0x28,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c12861a9 <unknown>

 smlsll  za.s[w11, 4:7, vgx2], {z31.b, z0.b}, z15.b  // 11000001-00101111-01100011-11101001
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx2], { z31.b, z0.b }, z15.b
 // CHECK-ENCODING: [0xe9,0x63,0x2f,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c12f63e9 <unknown>

 smlsll  za.s[w11, 4:7], {z31.b - z0.b}, z15.b  // 11000001-00101111-01100011-11101001
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx2], { z31.b, z0.b }, z15.b
 // CHECK-ENCODING: [0xe9,0x63,0x2f,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c12f63e9 <unknown>

 smlsll  za.s[w8, 4:7, vgx2], {z17.b, z18.b}, z0.b  // 11000001-00100000-00000010-00101001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx2], { z17.b, z18.b }, z0.b
 // CHECK-ENCODING: [0x29,0x02,0x20,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1200229 <unknown>

 smlsll  za.s[w8, 4:7], {z17.b - z18.b}, z0.b  // 11000001-00100000-00000010-00101001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx2], { z17.b, z18.b }, z0.b
 // CHECK-ENCODING: [0x29,0x02,0x20,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1200229 <unknown>

 smlsll  za.s[w8, 4:7, vgx2], {z1.b, z2.b}, z14.b  // 11000001-00101110-00000000-00101001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx2], { z1.b, z2.b }, z14.b
 // CHECK-ENCODING: [0x29,0x00,0x2e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c12e0029 <unknown>

 smlsll  za.s[w8, 4:7], {z1.b - z2.b}, z14.b  // 11000001-00101110-00000000-00101001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx2], { z1.b, z2.b }, z14.b
 // CHECK-ENCODING: [0x29,0x00,0x2e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c12e0029 <unknown>

 smlsll  za.s[w10, 0:3, vgx2], {z19.b, z20.b}, z4.b  // 11000001-00100100-01000010-01101000
 // CHECK-INST: smlsll  za.s[w10, 0:3, vgx2], { z19.b, z20.b }, z4.b
 // CHECK-ENCODING: [0x68,0x42,0x24,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1244268 <unknown>

 smlsll  za.s[w10, 0:3], {z19.b - z20.b}, z4.b  // 11000001-00100100-01000010-01101000
 // CHECK-INST: smlsll  za.s[w10, 0:3, vgx2], { z19.b, z20.b }, z4.b
 // CHECK-ENCODING: [0x68,0x42,0x24,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1244268 <unknown>

 smlsll  za.s[w8, 0:3, vgx2], {z12.b, z13.b}, z2.b  // 11000001-00100010-00000001-10001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx2], { z12.b, z13.b }, z2.b
 // CHECK-ENCODING: [0x88,0x01,0x22,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1220188 <unknown>

 smlsll  za.s[w8, 0:3], {z12.b - z13.b}, z2.b  // 11000001-00100010-00000001-10001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx2], { z12.b, z13.b }, z2.b
 // CHECK-ENCODING: [0x88,0x01,0x22,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1220188 <unknown>

 smlsll  za.s[w10, 4:7, vgx2], {z1.b, z2.b}, z10.b  // 11000001-00101010-01000000-00101001
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx2], { z1.b, z2.b }, z10.b
 // CHECK-ENCODING: [0x29,0x40,0x2a,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c12a4029 <unknown>

 smlsll  za.s[w10, 4:7], {z1.b - z2.b}, z10.b  // 11000001-00101010-01000000-00101001
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx2], { z1.b, z2.b }, z10.b
 // CHECK-ENCODING: [0x29,0x40,0x2a,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c12a4029 <unknown>

 smlsll  za.s[w8, 4:7, vgx2], {z22.b, z23.b}, z14.b  // 11000001-00101110-00000010-11001001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx2], { z22.b, z23.b }, z14.b
 // CHECK-ENCODING: [0xc9,0x02,0x2e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c12e02c9 <unknown>

 smlsll  za.s[w8, 4:7], {z22.b - z23.b}, z14.b  // 11000001-00101110-00000010-11001001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx2], { z22.b, z23.b }, z14.b
 // CHECK-ENCODING: [0xc9,0x02,0x2e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c12e02c9 <unknown>

 smlsll  za.s[w11, 0:3, vgx2], {z9.b, z10.b}, z1.b  // 11000001-00100001-01100001-00101000
 // CHECK-INST: smlsll  za.s[w11, 0:3, vgx2], { z9.b, z10.b }, z1.b
 // CHECK-ENCODING: [0x28,0x61,0x21,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1216128 <unknown>

 smlsll  za.s[w11, 0:3], {z9.b - z10.b}, z1.b  // 11000001-00100001-01100001-00101000
 // CHECK-INST: smlsll  za.s[w11, 0:3, vgx2], { z9.b, z10.b }, z1.b
 // CHECK-ENCODING: [0x28,0x61,0x21,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1216128 <unknown>

 smlsll  za.s[w9, 4:7, vgx2], {z12.b, z13.b}, z11.b  // 11000001-00101011-00100001-10001001
 // CHECK-INST: smlsll  za.s[w9, 4:7, vgx2], { z12.b, z13.b }, z11.b
 // CHECK-ENCODING: [0x89,0x21,0x2b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c12b2189 <unknown>

 smlsll  za.s[w9, 4:7], {z12.b - z13.b}, z11.b  // 11000001-00101011-00100001-10001001
 // CHECK-INST: smlsll  za.s[w9, 4:7, vgx2], { z12.b, z13.b }, z11.b
 // CHECK-ENCODING: [0x89,0x21,0x2b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c12b2189 <unknown>


 smlsll  za.s[w8, 0:3, vgx2], {z0.b, z1.b}, z0.b[0]  // 11000001-00010000-00000000-00001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx2], { z0.b, z1.b }, z0.b[0]
 // CHECK-ENCODING: [0x08,0x00,0x10,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1100008 <unknown>

 smlsll  za.s[w8, 0:3], {z0.b - z1.b}, z0.b[0]  // 11000001-00010000-00000000-00001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx2], { z0.b, z1.b }, z0.b[0]
 // CHECK-ENCODING: [0x08,0x00,0x10,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1100008 <unknown>

 smlsll  za.s[w10, 4:7, vgx2], {z10.b, z11.b}, z5.b[6]  // 11000001-00010101-01000101-01001101
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx2], { z10.b, z11.b }, z5.b[6]
 // CHECK-ENCODING: [0x4d,0x45,0x15,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c115454d <unknown>

 smlsll  za.s[w10, 4:7], {z10.b - z11.b}, z5.b[6]  // 11000001-00010101-01000101-01001101
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx2], { z10.b, z11.b }, z5.b[6]
 // CHECK-ENCODING: [0x4d,0x45,0x15,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c115454d <unknown>

 smlsll  za.s[w11, 4:7, vgx2], {z12.b, z13.b}, z8.b[15]  // 11000001-00011000-01101101-10001111
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx2], { z12.b, z13.b }, z8.b[15]
 // CHECK-ENCODING: [0x8f,0x6d,0x18,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1186d8f <unknown>

 smlsll  za.s[w11, 4:7], {z12.b - z13.b}, z8.b[15]  // 11000001-00011000-01101101-10001111
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx2], { z12.b, z13.b }, z8.b[15]
 // CHECK-ENCODING: [0x8f,0x6d,0x18,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1186d8f <unknown>

 smlsll  za.s[w11, 4:7, vgx2], {z30.b, z31.b}, z15.b[15]  // 11000001-00011111-01101111-11001111
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx2], { z30.b, z31.b }, z15.b[15]
 // CHECK-ENCODING: [0xcf,0x6f,0x1f,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c11f6fcf <unknown>

 smlsll  za.s[w11, 4:7], {z30.b - z31.b}, z15.b[15]  // 11000001-00011111-01101111-11001111
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx2], { z30.b, z31.b }, z15.b[15]
 // CHECK-ENCODING: [0xcf,0x6f,0x1f,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c11f6fcf <unknown>

 smlsll  za.s[w8, 4:7, vgx2], {z16.b, z17.b}, z0.b[14]  // 11000001-00010000-00001110-00001101
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx2], { z16.b, z17.b }, z0.b[14]
 // CHECK-ENCODING: [0x0d,0x0e,0x10,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1100e0d <unknown>

 smlsll  za.s[w8, 4:7], {z16.b - z17.b}, z0.b[14]  // 11000001-00010000-00001110-00001101
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx2], { z16.b, z17.b }, z0.b[14]
 // CHECK-ENCODING: [0x0d,0x0e,0x10,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1100e0d <unknown>

 smlsll  za.s[w8, 4:7, vgx2], {z0.b, z1.b}, z14.b[4]  // 11000001-00011110-00000100-00001001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx2], { z0.b, z1.b }, z14.b[4]
 // CHECK-ENCODING: [0x09,0x04,0x1e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c11e0409 <unknown>

 smlsll  za.s[w8, 4:7], {z0.b - z1.b}, z14.b[4]  // 11000001-00011110-00000100-00001001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx2], { z0.b, z1.b }, z14.b[4]
 // CHECK-ENCODING: [0x09,0x04,0x1e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c11e0409 <unknown>

 smlsll  za.s[w10, 0:3, vgx2], {z18.b, z19.b}, z4.b[4]  // 11000001-00010100-01000110-01001000
 // CHECK-INST: smlsll  za.s[w10, 0:3, vgx2], { z18.b, z19.b }, z4.b[4]
 // CHECK-ENCODING: [0x48,0x46,0x14,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1144648 <unknown>

 smlsll  za.s[w10, 0:3], {z18.b - z19.b}, z4.b[4]  // 11000001-00010100-01000110-01001000
 // CHECK-INST: smlsll  za.s[w10, 0:3, vgx2], { z18.b, z19.b }, z4.b[4]
 // CHECK-ENCODING: [0x48,0x46,0x14,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1144648 <unknown>

 smlsll  za.s[w8, 0:3, vgx2], {z12.b, z13.b}, z2.b[8]  // 11000001-00010010-00001001-10001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx2], { z12.b, z13.b }, z2.b[8]
 // CHECK-ENCODING: [0x88,0x09,0x12,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1120988 <unknown>

 smlsll  za.s[w8, 0:3], {z12.b - z13.b}, z2.b[8]  // 11000001-00010010-00001001-10001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx2], { z12.b, z13.b }, z2.b[8]
 // CHECK-ENCODING: [0x88,0x09,0x12,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1120988 <unknown>

 smlsll  za.s[w10, 4:7, vgx2], {z0.b, z1.b}, z10.b[8]  // 11000001-00011010-01001000-00001001
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx2], { z0.b, z1.b }, z10.b[8]
 // CHECK-ENCODING: [0x09,0x48,0x1a,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c11a4809 <unknown>

 smlsll  za.s[w10, 4:7], {z0.b - z1.b}, z10.b[8]  // 11000001-00011010-01001000-00001001
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx2], { z0.b, z1.b }, z10.b[8]
 // CHECK-ENCODING: [0x09,0x48,0x1a,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c11a4809 <unknown>

 smlsll  za.s[w8, 4:7, vgx2], {z22.b, z23.b}, z14.b[10]  // 11000001-00011110-00001010-11001101
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx2], { z22.b, z23.b }, z14.b[10]
 // CHECK-ENCODING: [0xcd,0x0a,0x1e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c11e0acd <unknown>

 smlsll  za.s[w8, 4:7], {z22.b - z23.b}, z14.b[10]  // 11000001-00011110-00001010-11001101
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx2], { z22.b, z23.b }, z14.b[10]
 // CHECK-ENCODING: [0xcd,0x0a,0x1e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c11e0acd <unknown>

 smlsll  za.s[w11, 0:3, vgx2], {z8.b, z9.b}, z1.b[5]  // 11000001-00010001-01100101-00001010
 // CHECK-INST: smlsll  za.s[w11, 0:3, vgx2], { z8.b, z9.b }, z1.b[5]
 // CHECK-ENCODING: [0x0a,0x65,0x11,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c111650a <unknown>

 smlsll  za.s[w11, 0:3], {z8.b - z9.b}, z1.b[5]  // 11000001-00010001-01100101-00001010
 // CHECK-INST: smlsll  za.s[w11, 0:3, vgx2], { z8.b, z9.b }, z1.b[5]
 // CHECK-ENCODING: [0x0a,0x65,0x11,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c111650a <unknown>

 smlsll  za.s[w9, 4:7, vgx2], {z12.b, z13.b}, z11.b[11]  // 11000001-00011011-00101001-10001111
 // CHECK-INST: smlsll  za.s[w9, 4:7, vgx2], { z12.b, z13.b }, z11.b[11]
 // CHECK-ENCODING: [0x8f,0x29,0x1b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c11b298f <unknown>

 smlsll  za.s[w9, 4:7], {z12.b - z13.b}, z11.b[11]  // 11000001-00011011-00101001-10001111
 // CHECK-INST: smlsll  za.s[w9, 4:7, vgx2], { z12.b, z13.b }, z11.b[11]
 // CHECK-ENCODING: [0x8f,0x29,0x1b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c11b298f <unknown>


 smlsll  za.s[w8, 0:3, vgx2], {z0.b, z1.b}, {z0.b, z1.b}  // 11000001-10100000-00000000-00001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx2], { z0.b, z1.b }, { z0.b, z1.b }
 // CHECK-ENCODING: [0x08,0x00,0xa0,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1a00008 <unknown>

 smlsll  za.s[w8, 0:3], {z0.b - z1.b}, {z0.b - z1.b}  // 11000001-10100000-00000000-00001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx2], { z0.b, z1.b }, { z0.b, z1.b }
 // CHECK-ENCODING: [0x08,0x00,0xa0,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1a00008 <unknown>

 smlsll  za.s[w10, 4:7, vgx2], {z10.b, z11.b}, {z20.b, z21.b}  // 11000001-10110100-01000001-01001001
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx2], { z10.b, z11.b }, { z20.b, z21.b }
 // CHECK-ENCODING: [0x49,0x41,0xb4,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1b44149 <unknown>

 smlsll  za.s[w10, 4:7], {z10.b - z11.b}, {z20.b - z21.b}  // 11000001-10110100-01000001-01001001
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx2], { z10.b, z11.b }, { z20.b, z21.b }
 // CHECK-ENCODING: [0x49,0x41,0xb4,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1b44149 <unknown>

 smlsll  za.s[w11, 4:7, vgx2], {z12.b, z13.b}, {z8.b, z9.b}  // 11000001-10101000-01100001-10001001
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx2], { z12.b, z13.b }, { z8.b, z9.b }
 // CHECK-ENCODING: [0x89,0x61,0xa8,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1a86189 <unknown>

 smlsll  za.s[w11, 4:7], {z12.b - z13.b}, {z8.b - z9.b}  // 11000001-10101000-01100001-10001001
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx2], { z12.b, z13.b }, { z8.b, z9.b }
 // CHECK-ENCODING: [0x89,0x61,0xa8,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1a86189 <unknown>

 smlsll  za.s[w11, 4:7, vgx2], {z30.b, z31.b}, {z30.b, z31.b}  // 11000001-10111110-01100011-11001001
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx2], { z30.b, z31.b }, { z30.b, z31.b }
 // CHECK-ENCODING: [0xc9,0x63,0xbe,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1be63c9 <unknown>

 smlsll  za.s[w11, 4:7], {z30.b - z31.b}, {z30.b - z31.b}  // 11000001-10111110-01100011-11001001
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx2], { z30.b, z31.b }, { z30.b, z31.b }
 // CHECK-ENCODING: [0xc9,0x63,0xbe,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1be63c9 <unknown>

 smlsll  za.s[w8, 4:7, vgx2], {z16.b, z17.b}, {z16.b, z17.b}  // 11000001-10110000-00000010-00001001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx2], { z16.b, z17.b }, { z16.b, z17.b }
 // CHECK-ENCODING: [0x09,0x02,0xb0,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1b00209 <unknown>

 smlsll  za.s[w8, 4:7], {z16.b - z17.b}, {z16.b - z17.b}  // 11000001-10110000-00000010-00001001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx2], { z16.b, z17.b }, { z16.b, z17.b }
 // CHECK-ENCODING: [0x09,0x02,0xb0,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1b00209 <unknown>

 smlsll  za.s[w8, 4:7, vgx2], {z0.b, z1.b}, {z30.b, z31.b}  // 11000001-10111110-00000000-00001001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx2], { z0.b, z1.b }, { z30.b, z31.b }
 // CHECK-ENCODING: [0x09,0x00,0xbe,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1be0009 <unknown>

 smlsll  za.s[w8, 4:7], {z0.b - z1.b}, {z30.b - z31.b}  // 11000001-10111110-00000000-00001001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx2], { z0.b, z1.b }, { z30.b, z31.b }
 // CHECK-ENCODING: [0x09,0x00,0xbe,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1be0009 <unknown>

 smlsll  za.s[w10, 0:3, vgx2], {z18.b, z19.b}, {z20.b, z21.b}  // 11000001-10110100-01000010-01001000
 // CHECK-INST: smlsll  za.s[w10, 0:3, vgx2], { z18.b, z19.b }, { z20.b, z21.b }
 // CHECK-ENCODING: [0x48,0x42,0xb4,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1b44248 <unknown>

 smlsll  za.s[w10, 0:3], {z18.b - z19.b}, {z20.b - z21.b}  // 11000001-10110100-01000010-01001000
 // CHECK-INST: smlsll  za.s[w10, 0:3, vgx2], { z18.b, z19.b }, { z20.b, z21.b }
 // CHECK-ENCODING: [0x48,0x42,0xb4,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1b44248 <unknown>

 smlsll  za.s[w8, 0:3, vgx2], {z12.b, z13.b}, {z2.b, z3.b}  // 11000001-10100010-00000001-10001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx2], { z12.b, z13.b }, { z2.b, z3.b }
 // CHECK-ENCODING: [0x88,0x01,0xa2,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1a20188 <unknown>

 smlsll  za.s[w8, 0:3], {z12.b - z13.b}, {z2.b - z3.b}  // 11000001-10100010-00000001-10001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx2], { z12.b, z13.b }, { z2.b, z3.b }
 // CHECK-ENCODING: [0x88,0x01,0xa2,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1a20188 <unknown>

 smlsll  za.s[w10, 4:7, vgx2], {z0.b, z1.b}, {z26.b, z27.b}  // 11000001-10111010-01000000-00001001
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx2], { z0.b, z1.b }, { z26.b, z27.b }
 // CHECK-ENCODING: [0x09,0x40,0xba,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1ba4009 <unknown>

 smlsll  za.s[w10, 4:7], {z0.b - z1.b}, {z26.b - z27.b}  // 11000001-10111010-01000000-00001001
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx2], { z0.b, z1.b }, { z26.b, z27.b }
 // CHECK-ENCODING: [0x09,0x40,0xba,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1ba4009 <unknown>

 smlsll  za.s[w8, 4:7, vgx2], {z22.b, z23.b}, {z30.b, z31.b}  // 11000001-10111110-00000010-11001001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx2], { z22.b, z23.b }, { z30.b, z31.b }
 // CHECK-ENCODING: [0xc9,0x02,0xbe,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1be02c9 <unknown>

 smlsll  za.s[w8, 4:7], {z22.b - z23.b}, {z30.b - z31.b}  // 11000001-10111110-00000010-11001001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx2], { z22.b, z23.b }, { z30.b, z31.b }
 // CHECK-ENCODING: [0xc9,0x02,0xbe,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1be02c9 <unknown>

 smlsll  za.s[w11, 0:3, vgx2], {z8.b, z9.b}, {z0.b, z1.b}  // 11000001-10100000-01100001-00001000
 // CHECK-INST: smlsll  za.s[w11, 0:3, vgx2], { z8.b, z9.b }, { z0.b, z1.b }
 // CHECK-ENCODING: [0x08,0x61,0xa0,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1a06108 <unknown>

 smlsll  za.s[w11, 0:3], {z8.b - z9.b}, {z0.b - z1.b}  // 11000001-10100000-01100001-00001000
 // CHECK-INST: smlsll  za.s[w11, 0:3, vgx2], { z8.b, z9.b }, { z0.b, z1.b }
 // CHECK-ENCODING: [0x08,0x61,0xa0,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1a06108 <unknown>

 smlsll  za.s[w9, 4:7, vgx2], {z12.b, z13.b}, {z10.b, z11.b}  // 11000001-10101010-00100001-10001001
 // CHECK-INST: smlsll  za.s[w9, 4:7, vgx2], { z12.b, z13.b }, { z10.b, z11.b }
 // CHECK-ENCODING: [0x89,0x21,0xaa,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1aa2189 <unknown>

 smlsll  za.s[w9, 4:7], {z12.b - z13.b}, {z10.b - z11.b}  // 11000001-10101010-00100001-10001001
 // CHECK-INST: smlsll  za.s[w9, 4:7, vgx2], { z12.b, z13.b }, { z10.b, z11.b }
 // CHECK-ENCODING: [0x89,0x21,0xaa,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1aa2189 <unknown>


 smlsll  za.d[w8, 0:3, vgx2], {z0.h, z1.h}, z0.h  // 11000001-01100000-00000000-00001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx2], { z0.h, z1.h }, z0.h
 // CHECK-ENCODING: [0x08,0x00,0x60,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1600008 <unknown>

 smlsll  za.d[w8, 0:3], {z0.h - z1.h}, z0.h  // 11000001-01100000-00000000-00001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx2], { z0.h, z1.h }, z0.h
 // CHECK-ENCODING: [0x08,0x00,0x60,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1600008 <unknown>

 smlsll  za.d[w10, 4:7, vgx2], {z10.h, z11.h}, z5.h  // 11000001-01100101-01000001-01001001
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx2], { z10.h, z11.h }, z5.h
 // CHECK-ENCODING: [0x49,0x41,0x65,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1654149 <unknown>

 smlsll  za.d[w10, 4:7], {z10.h - z11.h}, z5.h  // 11000001-01100101-01000001-01001001
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx2], { z10.h, z11.h }, z5.h
 // CHECK-ENCODING: [0x49,0x41,0x65,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1654149 <unknown>

 smlsll  za.d[w11, 4:7, vgx2], {z13.h, z14.h}, z8.h  // 11000001-01101000-01100001-10101001
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx2], { z13.h, z14.h }, z8.h
 // CHECK-ENCODING: [0xa9,0x61,0x68,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c16861a9 <unknown>

 smlsll  za.d[w11, 4:7], {z13.h - z14.h}, z8.h  // 11000001-01101000-01100001-10101001
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx2], { z13.h, z14.h }, z8.h
 // CHECK-ENCODING: [0xa9,0x61,0x68,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c16861a9 <unknown>

 smlsll  za.d[w11, 4:7, vgx2], {z31.h, z0.h}, z15.h  // 11000001-01101111-01100011-11101001
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx2], { z31.h, z0.h }, z15.h
 // CHECK-ENCODING: [0xe9,0x63,0x6f,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c16f63e9 <unknown>

 smlsll  za.d[w11, 4:7], {z31.h - z0.h}, z15.h  // 11000001-01101111-01100011-11101001
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx2], { z31.h, z0.h }, z15.h
 // CHECK-ENCODING: [0xe9,0x63,0x6f,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c16f63e9 <unknown>

 smlsll  za.d[w8, 4:7, vgx2], {z17.h, z18.h}, z0.h  // 11000001-01100000-00000010-00101001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx2], { z17.h, z18.h }, z0.h
 // CHECK-ENCODING: [0x29,0x02,0x60,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1600229 <unknown>

 smlsll  za.d[w8, 4:7], {z17.h - z18.h}, z0.h  // 11000001-01100000-00000010-00101001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx2], { z17.h, z18.h }, z0.h
 // CHECK-ENCODING: [0x29,0x02,0x60,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1600229 <unknown>

 smlsll  za.d[w8, 4:7, vgx2], {z1.h, z2.h}, z14.h  // 11000001-01101110-00000000-00101001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx2], { z1.h, z2.h }, z14.h
 // CHECK-ENCODING: [0x29,0x00,0x6e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c16e0029 <unknown>

 smlsll  za.d[w8, 4:7], {z1.h - z2.h}, z14.h  // 11000001-01101110-00000000-00101001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx2], { z1.h, z2.h }, z14.h
 // CHECK-ENCODING: [0x29,0x00,0x6e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c16e0029 <unknown>

 smlsll  za.d[w10, 0:3, vgx2], {z19.h, z20.h}, z4.h  // 11000001-01100100-01000010-01101000
 // CHECK-INST: smlsll  za.d[w10, 0:3, vgx2], { z19.h, z20.h }, z4.h
 // CHECK-ENCODING: [0x68,0x42,0x64,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1644268 <unknown>

 smlsll  za.d[w10, 0:3], {z19.h - z20.h}, z4.h  // 11000001-01100100-01000010-01101000
 // CHECK-INST: smlsll  za.d[w10, 0:3, vgx2], { z19.h, z20.h }, z4.h
 // CHECK-ENCODING: [0x68,0x42,0x64,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1644268 <unknown>

 smlsll  za.d[w8, 0:3, vgx2], {z12.h, z13.h}, z2.h  // 11000001-01100010-00000001-10001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx2], { z12.h, z13.h }, z2.h
 // CHECK-ENCODING: [0x88,0x01,0x62,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1620188 <unknown>

 smlsll  za.d[w8, 0:3], {z12.h - z13.h}, z2.h  // 11000001-01100010-00000001-10001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx2], { z12.h, z13.h }, z2.h
 // CHECK-ENCODING: [0x88,0x01,0x62,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1620188 <unknown>

 smlsll  za.d[w10, 4:7, vgx2], {z1.h, z2.h}, z10.h  // 11000001-01101010-01000000-00101001
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx2], { z1.h, z2.h }, z10.h
 // CHECK-ENCODING: [0x29,0x40,0x6a,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c16a4029 <unknown>

 smlsll  za.d[w10, 4:7], {z1.h - z2.h}, z10.h  // 11000001-01101010-01000000-00101001
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx2], { z1.h, z2.h }, z10.h
 // CHECK-ENCODING: [0x29,0x40,0x6a,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c16a4029 <unknown>

 smlsll  za.d[w8, 4:7, vgx2], {z22.h, z23.h}, z14.h  // 11000001-01101110-00000010-11001001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx2], { z22.h, z23.h }, z14.h
 // CHECK-ENCODING: [0xc9,0x02,0x6e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c16e02c9 <unknown>

 smlsll  za.d[w8, 4:7], {z22.h - z23.h}, z14.h  // 11000001-01101110-00000010-11001001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx2], { z22.h, z23.h }, z14.h
 // CHECK-ENCODING: [0xc9,0x02,0x6e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c16e02c9 <unknown>

 smlsll  za.d[w11, 0:3, vgx2], {z9.h, z10.h}, z1.h  // 11000001-01100001-01100001-00101000
 // CHECK-INST: smlsll  za.d[w11, 0:3, vgx2], { z9.h, z10.h }, z1.h
 // CHECK-ENCODING: [0x28,0x61,0x61,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1616128 <unknown>

 smlsll  za.d[w11, 0:3], {z9.h - z10.h}, z1.h  // 11000001-01100001-01100001-00101000
 // CHECK-INST: smlsll  za.d[w11, 0:3, vgx2], { z9.h, z10.h }, z1.h
 // CHECK-ENCODING: [0x28,0x61,0x61,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1616128 <unknown>

 smlsll  za.d[w9, 4:7, vgx2], {z12.h, z13.h}, z11.h  // 11000001-01101011-00100001-10001001
 // CHECK-INST: smlsll  za.d[w9, 4:7, vgx2], { z12.h, z13.h }, z11.h
 // CHECK-ENCODING: [0x89,0x21,0x6b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c16b2189 <unknown>

 smlsll  za.d[w9, 4:7], {z12.h - z13.h}, z11.h  // 11000001-01101011-00100001-10001001
 // CHECK-INST: smlsll  za.d[w9, 4:7, vgx2], { z12.h, z13.h }, z11.h
 // CHECK-ENCODING: [0x89,0x21,0x6b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c16b2189 <unknown>


 smlsll  za.d[w8, 0:3, vgx2], {z0.h, z1.h}, z0.h[0]  // 11000001-10010000-00000000-00001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx2], { z0.h, z1.h }, z0.h[0]
 // CHECK-ENCODING: [0x08,0x00,0x90,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1900008 <unknown>

 smlsll  za.d[w8, 0:3], {z0.h - z1.h}, z0.h[0]  // 11000001-10010000-00000000-00001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx2], { z0.h, z1.h }, z0.h[0]
 // CHECK-ENCODING: [0x08,0x00,0x90,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1900008 <unknown>

 smlsll  za.d[w10, 4:7, vgx2], {z10.h, z11.h}, z5.h[6]  // 11000001-10010101-01000101-01001101
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx2], { z10.h, z11.h }, z5.h[6]
 // CHECK-ENCODING: [0x4d,0x45,0x95,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c195454d <unknown>

 smlsll  za.d[w10, 4:7], {z10.h - z11.h}, z5.h[6]  // 11000001-10010101-01000101-01001101
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx2], { z10.h, z11.h }, z5.h[6]
 // CHECK-ENCODING: [0x4d,0x45,0x95,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c195454d <unknown>

 smlsll  za.d[w11, 4:7, vgx2], {z12.h, z13.h}, z8.h[7]  // 11000001-10011000-01100101-10001111
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx2], { z12.h, z13.h }, z8.h[7]
 // CHECK-ENCODING: [0x8f,0x65,0x98,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c198658f <unknown>

 smlsll  za.d[w11, 4:7], {z12.h - z13.h}, z8.h[7]  // 11000001-10011000-01100101-10001111
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx2], { z12.h, z13.h }, z8.h[7]
 // CHECK-ENCODING: [0x8f,0x65,0x98,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c198658f <unknown>

 smlsll  za.d[w11, 4:7, vgx2], {z30.h, z31.h}, z15.h[7]  // 11000001-10011111-01100111-11001111
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx2], { z30.h, z31.h }, z15.h[7]
 // CHECK-ENCODING: [0xcf,0x67,0x9f,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c19f67cf <unknown>

 smlsll  za.d[w11, 4:7], {z30.h - z31.h}, z15.h[7]  // 11000001-10011111-01100111-11001111
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx2], { z30.h, z31.h }, z15.h[7]
 // CHECK-ENCODING: [0xcf,0x67,0x9f,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c19f67cf <unknown>

 smlsll  za.d[w8, 4:7, vgx2], {z16.h, z17.h}, z0.h[6]  // 11000001-10010000-00000110-00001101
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx2], { z16.h, z17.h }, z0.h[6]
 // CHECK-ENCODING: [0x0d,0x06,0x90,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c190060d <unknown>

 smlsll  za.d[w8, 4:7], {z16.h - z17.h}, z0.h[6]  // 11000001-10010000-00000110-00001101
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx2], { z16.h, z17.h }, z0.h[6]
 // CHECK-ENCODING: [0x0d,0x06,0x90,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c190060d <unknown>

 smlsll  za.d[w8, 4:7, vgx2], {z0.h, z1.h}, z14.h[4]  // 11000001-10011110-00000100-00001001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx2], { z0.h, z1.h }, z14.h[4]
 // CHECK-ENCODING: [0x09,0x04,0x9e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c19e0409 <unknown>

 smlsll  za.d[w8, 4:7], {z0.h - z1.h}, z14.h[4]  // 11000001-10011110-00000100-00001001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx2], { z0.h, z1.h }, z14.h[4]
 // CHECK-ENCODING: [0x09,0x04,0x9e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c19e0409 <unknown>

 smlsll  za.d[w10, 0:3, vgx2], {z18.h, z19.h}, z4.h[4]  // 11000001-10010100-01000110-01001000
 // CHECK-INST: smlsll  za.d[w10, 0:3, vgx2], { z18.h, z19.h }, z4.h[4]
 // CHECK-ENCODING: [0x48,0x46,0x94,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1944648 <unknown>

 smlsll  za.d[w10, 0:3], {z18.h - z19.h}, z4.h[4]  // 11000001-10010100-01000110-01001000
 // CHECK-INST: smlsll  za.d[w10, 0:3, vgx2], { z18.h, z19.h }, z4.h[4]
 // CHECK-ENCODING: [0x48,0x46,0x94,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1944648 <unknown>

 smlsll  za.d[w8, 0:3, vgx2], {z12.h, z13.h}, z2.h[0]  // 11000001-10010010-00000001-10001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx2], { z12.h, z13.h }, z2.h[0]
 // CHECK-ENCODING: [0x88,0x01,0x92,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1920188 <unknown>

 smlsll  za.d[w8, 0:3], {z12.h - z13.h}, z2.h[0]  // 11000001-10010010-00000001-10001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx2], { z12.h, z13.h }, z2.h[0]
 // CHECK-ENCODING: [0x88,0x01,0x92,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1920188 <unknown>

 smlsll  za.d[w10, 4:7, vgx2], {z0.h, z1.h}, z10.h[0]  // 11000001-10011010-01000000-00001001
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx2], { z0.h, z1.h }, z10.h[0]
 // CHECK-ENCODING: [0x09,0x40,0x9a,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c19a4009 <unknown>

 smlsll  za.d[w10, 4:7], {z0.h - z1.h}, z10.h[0]  // 11000001-10011010-01000000-00001001
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx2], { z0.h, z1.h }, z10.h[0]
 // CHECK-ENCODING: [0x09,0x40,0x9a,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c19a4009 <unknown>

 smlsll  za.d[w8, 4:7, vgx2], {z22.h, z23.h}, z14.h[2]  // 11000001-10011110-00000010-11001101
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx2], { z22.h, z23.h }, z14.h[2]
 // CHECK-ENCODING: [0xcd,0x02,0x9e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c19e02cd <unknown>

 smlsll  za.d[w8, 4:7], {z22.h - z23.h}, z14.h[2]  // 11000001-10011110-00000010-11001101
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx2], { z22.h, z23.h }, z14.h[2]
 // CHECK-ENCODING: [0xcd,0x02,0x9e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c19e02cd <unknown>

 smlsll  za.d[w11, 0:3, vgx2], {z8.h, z9.h}, z1.h[5]  // 11000001-10010001-01100101-00001010
 // CHECK-INST: smlsll  za.d[w11, 0:3, vgx2], { z8.h, z9.h }, z1.h[5]
 // CHECK-ENCODING: [0x0a,0x65,0x91,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c191650a <unknown>

 smlsll  za.d[w11, 0:3], {z8.h - z9.h}, z1.h[5]  // 11000001-10010001-01100101-00001010
 // CHECK-INST: smlsll  za.d[w11, 0:3, vgx2], { z8.h, z9.h }, z1.h[5]
 // CHECK-ENCODING: [0x0a,0x65,0x91,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c191650a <unknown>

 smlsll  za.d[w9, 4:7, vgx2], {z12.h, z13.h}, z11.h[3]  // 11000001-10011011-00100001-10001111
 // CHECK-INST: smlsll  za.d[w9, 4:7, vgx2], { z12.h, z13.h }, z11.h[3]
 // CHECK-ENCODING: [0x8f,0x21,0x9b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c19b218f <unknown>

 smlsll  za.d[w9, 4:7], {z12.h - z13.h}, z11.h[3]  // 11000001-10011011-00100001-10001111
 // CHECK-INST: smlsll  za.d[w9, 4:7, vgx2], { z12.h, z13.h }, z11.h[3]
 // CHECK-ENCODING: [0x8f,0x21,0x9b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c19b218f <unknown>


 smlsll  za.d[w8, 0:3, vgx2], {z0.h, z1.h}, {z0.h, z1.h}  // 11000001-11100000-00000000-00001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx2], { z0.h, z1.h }, { z0.h, z1.h }
 // CHECK-ENCODING: [0x08,0x00,0xe0,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1e00008 <unknown>

 smlsll  za.d[w8, 0:3], {z0.h - z1.h}, {z0.h - z1.h}  // 11000001-11100000-00000000-00001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx2], { z0.h, z1.h }, { z0.h, z1.h }
 // CHECK-ENCODING: [0x08,0x00,0xe0,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1e00008 <unknown>

 smlsll  za.d[w10, 4:7, vgx2], {z10.h, z11.h}, {z20.h, z21.h}  // 11000001-11110100-01000001-01001001
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx2], { z10.h, z11.h }, { z20.h, z21.h }
 // CHECK-ENCODING: [0x49,0x41,0xf4,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1f44149 <unknown>

 smlsll  za.d[w10, 4:7], {z10.h - z11.h}, {z20.h - z21.h}  // 11000001-11110100-01000001-01001001
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx2], { z10.h, z11.h }, { z20.h, z21.h }
 // CHECK-ENCODING: [0x49,0x41,0xf4,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1f44149 <unknown>

 smlsll  za.d[w11, 4:7, vgx2], {z12.h, z13.h}, {z8.h, z9.h}  // 11000001-11101000-01100001-10001001
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx2], { z12.h, z13.h }, { z8.h, z9.h }
 // CHECK-ENCODING: [0x89,0x61,0xe8,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1e86189 <unknown>

 smlsll  za.d[w11, 4:7], {z12.h - z13.h}, {z8.h - z9.h}  // 11000001-11101000-01100001-10001001
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx2], { z12.h, z13.h }, { z8.h, z9.h }
 // CHECK-ENCODING: [0x89,0x61,0xe8,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1e86189 <unknown>

 smlsll  za.d[w11, 4:7, vgx2], {z30.h, z31.h}, {z30.h, z31.h}  // 11000001-11111110-01100011-11001001
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx2], { z30.h, z31.h }, { z30.h, z31.h }
 // CHECK-ENCODING: [0xc9,0x63,0xfe,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1fe63c9 <unknown>

 smlsll  za.d[w11, 4:7], {z30.h - z31.h}, {z30.h - z31.h}  // 11000001-11111110-01100011-11001001
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx2], { z30.h, z31.h }, { z30.h, z31.h }
 // CHECK-ENCODING: [0xc9,0x63,0xfe,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1fe63c9 <unknown>

 smlsll  za.d[w8, 4:7, vgx2], {z16.h, z17.h}, {z16.h, z17.h}  // 11000001-11110000-00000010-00001001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx2], { z16.h, z17.h }, { z16.h, z17.h }
 // CHECK-ENCODING: [0x09,0x02,0xf0,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1f00209 <unknown>

 smlsll  za.d[w8, 4:7], {z16.h - z17.h}, {z16.h - z17.h}  // 11000001-11110000-00000010-00001001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx2], { z16.h, z17.h }, { z16.h, z17.h }
 // CHECK-ENCODING: [0x09,0x02,0xf0,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1f00209 <unknown>

 smlsll  za.d[w8, 4:7, vgx2], {z0.h, z1.h}, {z30.h, z31.h}  // 11000001-11111110-00000000-00001001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx2], { z0.h, z1.h }, { z30.h, z31.h }
 // CHECK-ENCODING: [0x09,0x00,0xfe,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1fe0009 <unknown>

 smlsll  za.d[w8, 4:7], {z0.h - z1.h}, {z30.h - z31.h}  // 11000001-11111110-00000000-00001001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx2], { z0.h, z1.h }, { z30.h, z31.h }
 // CHECK-ENCODING: [0x09,0x00,0xfe,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1fe0009 <unknown>

 smlsll  za.d[w10, 0:3, vgx2], {z18.h, z19.h}, {z20.h, z21.h}  // 11000001-11110100-01000010-01001000
 // CHECK-INST: smlsll  za.d[w10, 0:3, vgx2], { z18.h, z19.h }, { z20.h, z21.h }
 // CHECK-ENCODING: [0x48,0x42,0xf4,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1f44248 <unknown>

 smlsll  za.d[w10, 0:3], {z18.h - z19.h}, {z20.h - z21.h}  // 11000001-11110100-01000010-01001000
 // CHECK-INST: smlsll  za.d[w10, 0:3, vgx2], { z18.h, z19.h }, { z20.h, z21.h }
 // CHECK-ENCODING: [0x48,0x42,0xf4,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1f44248 <unknown>

 smlsll  za.d[w8, 0:3, vgx2], {z12.h, z13.h}, {z2.h, z3.h}  // 11000001-11100010-00000001-10001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx2], { z12.h, z13.h }, { z2.h, z3.h }
 // CHECK-ENCODING: [0x88,0x01,0xe2,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1e20188 <unknown>

 smlsll  za.d[w8, 0:3], {z12.h - z13.h}, {z2.h - z3.h}  // 11000001-11100010-00000001-10001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx2], { z12.h, z13.h }, { z2.h, z3.h }
 // CHECK-ENCODING: [0x88,0x01,0xe2,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1e20188 <unknown>

 smlsll  za.d[w10, 4:7, vgx2], {z0.h, z1.h}, {z26.h, z27.h}  // 11000001-11111010-01000000-00001001
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx2], { z0.h, z1.h }, { z26.h, z27.h }
 // CHECK-ENCODING: [0x09,0x40,0xfa,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1fa4009 <unknown>

 smlsll  za.d[w10, 4:7], {z0.h - z1.h}, {z26.h - z27.h}  // 11000001-11111010-01000000-00001001
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx2], { z0.h, z1.h }, { z26.h, z27.h }
 // CHECK-ENCODING: [0x09,0x40,0xfa,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1fa4009 <unknown>

 smlsll  za.d[w8, 4:7, vgx2], {z22.h, z23.h}, {z30.h, z31.h}  // 11000001-11111110-00000010-11001001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx2], { z22.h, z23.h }, { z30.h, z31.h }
 // CHECK-ENCODING: [0xc9,0x02,0xfe,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1fe02c9 <unknown>

 smlsll  za.d[w8, 4:7], {z22.h - z23.h}, {z30.h - z31.h}  // 11000001-11111110-00000010-11001001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx2], { z22.h, z23.h }, { z30.h, z31.h }
 // CHECK-ENCODING: [0xc9,0x02,0xfe,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1fe02c9 <unknown>

 smlsll  za.d[w11, 0:3, vgx2], {z8.h, z9.h}, {z0.h, z1.h}  // 11000001-11100000-01100001-00001000
 // CHECK-INST: smlsll  za.d[w11, 0:3, vgx2], { z8.h, z9.h }, { z0.h, z1.h }
 // CHECK-ENCODING: [0x08,0x61,0xe0,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1e06108 <unknown>

 smlsll  za.d[w11, 0:3], {z8.h - z9.h}, {z0.h - z1.h}  // 11000001-11100000-01100001-00001000
 // CHECK-INST: smlsll  za.d[w11, 0:3, vgx2], { z8.h, z9.h }, { z0.h, z1.h }
 // CHECK-ENCODING: [0x08,0x61,0xe0,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1e06108 <unknown>

 smlsll  za.d[w9, 4:7, vgx2], {z12.h, z13.h}, {z10.h, z11.h}  // 11000001-11101010-00100001-10001001
 // CHECK-INST: smlsll  za.d[w9, 4:7, vgx2], { z12.h, z13.h }, { z10.h, z11.h }
 // CHECK-ENCODING: [0x89,0x21,0xea,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1ea2189 <unknown>

 smlsll  za.d[w9, 4:7], {z12.h - z13.h}, {z10.h - z11.h}  // 11000001-11101010-00100001-10001001
 // CHECK-INST: smlsll  za.d[w9, 4:7, vgx2], { z12.h, z13.h }, { z10.h, z11.h }
 // CHECK-ENCODING: [0x89,0x21,0xea,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1ea2189 <unknown>


 smlsll  za.s[w8, 0:3, vgx4], {z0.b - z3.b}, z0.b  // 11000001-00110000-00000000-00001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx4], { z0.b - z3.b }, z0.b
 // CHECK-ENCODING: [0x08,0x00,0x30,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1300008 <unknown>

 smlsll  za.s[w8, 0:3], {z0.b - z3.b}, z0.b  // 11000001-00110000-00000000-00001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx4], { z0.b - z3.b }, z0.b
 // CHECK-ENCODING: [0x08,0x00,0x30,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1300008 <unknown>

 smlsll  za.s[w10, 4:7, vgx4], {z10.b - z13.b}, z5.b  // 11000001-00110101-01000001-01001001
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx4], { z10.b - z13.b }, z5.b
 // CHECK-ENCODING: [0x49,0x41,0x35,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1354149 <unknown>

 smlsll  za.s[w10, 4:7], {z10.b - z13.b}, z5.b  // 11000001-00110101-01000001-01001001
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx4], { z10.b - z13.b }, z5.b
 // CHECK-ENCODING: [0x49,0x41,0x35,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1354149 <unknown>

 smlsll  za.s[w11, 4:7, vgx4], {z13.b - z16.b}, z8.b  // 11000001-00111000-01100001-10101001
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx4], { z13.b - z16.b }, z8.b
 // CHECK-ENCODING: [0xa9,0x61,0x38,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c13861a9 <unknown>

 smlsll  za.s[w11, 4:7], {z13.b - z16.b}, z8.b  // 11000001-00111000-01100001-10101001
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx4], { z13.b - z16.b }, z8.b
 // CHECK-ENCODING: [0xa9,0x61,0x38,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c13861a9 <unknown>

 smlsll  za.s[w11, 4:7, vgx4], {z31.b, z0.b, z1.b, z2.b}, z15.b  // 11000001-00111111-01100011-11101001
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx4], { z31.b, z0.b, z1.b, z2.b }, z15.b
 // CHECK-ENCODING: [0xe9,0x63,0x3f,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c13f63e9 <unknown>

 smlsll  za.s[w11, 4:7], {z31.b, z0.b, z1.b, z2.b}, z15.b  // 11000001-00111111-01100011-11101001
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx4], { z31.b, z0.b, z1.b, z2.b }, z15.b
 // CHECK-ENCODING: [0xe9,0x63,0x3f,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c13f63e9 <unknown>

 smlsll  za.s[w8, 4:7, vgx4], {z17.b - z20.b}, z0.b  // 11000001-00110000-00000010-00101001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx4], { z17.b - z20.b }, z0.b
 // CHECK-ENCODING: [0x29,0x02,0x30,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1300229 <unknown>

 smlsll  za.s[w8, 4:7], {z17.b - z20.b}, z0.b  // 11000001-00110000-00000010-00101001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx4], { z17.b - z20.b }, z0.b
 // CHECK-ENCODING: [0x29,0x02,0x30,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1300229 <unknown>

 smlsll  za.s[w8, 4:7, vgx4], {z1.b - z4.b}, z14.b  // 11000001-00111110-00000000-00101001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx4], { z1.b - z4.b }, z14.b
 // CHECK-ENCODING: [0x29,0x00,0x3e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c13e0029 <unknown>

 smlsll  za.s[w8, 4:7], {z1.b - z4.b}, z14.b  // 11000001-00111110-00000000-00101001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx4], { z1.b - z4.b }, z14.b
 // CHECK-ENCODING: [0x29,0x00,0x3e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c13e0029 <unknown>

 smlsll  za.s[w10, 0:3, vgx4], {z19.b - z22.b}, z4.b  // 11000001-00110100-01000010-01101000
 // CHECK-INST: smlsll  za.s[w10, 0:3, vgx4], { z19.b - z22.b }, z4.b
 // CHECK-ENCODING: [0x68,0x42,0x34,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1344268 <unknown>

 smlsll  za.s[w10, 0:3], {z19.b - z22.b}, z4.b  // 11000001-00110100-01000010-01101000
 // CHECK-INST: smlsll  za.s[w10, 0:3, vgx4], { z19.b - z22.b }, z4.b
 // CHECK-ENCODING: [0x68,0x42,0x34,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1344268 <unknown>

 smlsll  za.s[w8, 0:3, vgx4], {z12.b - z15.b}, z2.b  // 11000001-00110010-00000001-10001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx4], { z12.b - z15.b }, z2.b
 // CHECK-ENCODING: [0x88,0x01,0x32,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1320188 <unknown>

 smlsll  za.s[w8, 0:3], {z12.b - z15.b}, z2.b  // 11000001-00110010-00000001-10001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx4], { z12.b - z15.b }, z2.b
 // CHECK-ENCODING: [0x88,0x01,0x32,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1320188 <unknown>

 smlsll  za.s[w10, 4:7, vgx4], {z1.b - z4.b}, z10.b  // 11000001-00111010-01000000-00101001
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx4], { z1.b - z4.b }, z10.b
 // CHECK-ENCODING: [0x29,0x40,0x3a,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c13a4029 <unknown>

 smlsll  za.s[w10, 4:7], {z1.b - z4.b}, z10.b  // 11000001-00111010-01000000-00101001
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx4], { z1.b - z4.b }, z10.b
 // CHECK-ENCODING: [0x29,0x40,0x3a,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c13a4029 <unknown>

 smlsll  za.s[w8, 4:7, vgx4], {z22.b - z25.b}, z14.b  // 11000001-00111110-00000010-11001001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx4], { z22.b - z25.b }, z14.b
 // CHECK-ENCODING: [0xc9,0x02,0x3e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c13e02c9 <unknown>

 smlsll  za.s[w8, 4:7], {z22.b - z25.b}, z14.b  // 11000001-00111110-00000010-11001001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx4], { z22.b - z25.b }, z14.b
 // CHECK-ENCODING: [0xc9,0x02,0x3e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c13e02c9 <unknown>

 smlsll  za.s[w11, 0:3, vgx4], {z9.b - z12.b}, z1.b  // 11000001-00110001-01100001-00101000
 // CHECK-INST: smlsll  za.s[w11, 0:3, vgx4], { z9.b - z12.b }, z1.b
 // CHECK-ENCODING: [0x28,0x61,0x31,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1316128 <unknown>

 smlsll  za.s[w11, 0:3], {z9.b - z12.b}, z1.b  // 11000001-00110001-01100001-00101000
 // CHECK-INST: smlsll  za.s[w11, 0:3, vgx4], { z9.b - z12.b }, z1.b
 // CHECK-ENCODING: [0x28,0x61,0x31,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1316128 <unknown>

 smlsll  za.s[w9, 4:7, vgx4], {z12.b - z15.b}, z11.b  // 11000001-00111011-00100001-10001001
 // CHECK-INST: smlsll  za.s[w9, 4:7, vgx4], { z12.b - z15.b }, z11.b
 // CHECK-ENCODING: [0x89,0x21,0x3b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c13b2189 <unknown>

 smlsll  za.s[w9, 4:7], {z12.b - z15.b}, z11.b  // 11000001-00111011-00100001-10001001
 // CHECK-INST: smlsll  za.s[w9, 4:7, vgx4], { z12.b - z15.b }, z11.b
 // CHECK-ENCODING: [0x89,0x21,0x3b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c13b2189 <unknown>


 smlsll  za.s[w8, 0:3, vgx4], {z0.b - z3.b}, z0.b[0]  // 11000001-00010000-10000000-00001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx4], { z0.b - z3.b }, z0.b[0]
 // CHECK-ENCODING: [0x08,0x80,0x10,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1108008 <unknown>

 smlsll  za.s[w8, 0:3], {z0.b - z3.b}, z0.b[0]  // 11000001-00010000-10000000-00001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx4], { z0.b - z3.b }, z0.b[0]
 // CHECK-ENCODING: [0x08,0x80,0x10,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1108008 <unknown>

 smlsll  za.s[w10, 4:7, vgx4], {z8.b - z11.b}, z5.b[6]  // 11000001-00010101-11000101-00001101
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx4], { z8.b - z11.b }, z5.b[6]
 // CHECK-ENCODING: [0x0d,0xc5,0x15,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c115c50d <unknown>

 smlsll  za.s[w10, 4:7], {z8.b - z11.b}, z5.b[6]  // 11000001-00010101-11000101-00001101
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx4], { z8.b - z11.b }, z5.b[6]
 // CHECK-ENCODING: [0x0d,0xc5,0x15,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c115c50d <unknown>

 smlsll  za.s[w11, 4:7, vgx4], {z12.b - z15.b}, z8.b[15]  // 11000001-00011000-11101101-10001111
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx4], { z12.b - z15.b }, z8.b[15]
 // CHECK-ENCODING: [0x8f,0xed,0x18,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c118ed8f <unknown>

 smlsll  za.s[w11, 4:7], {z12.b - z15.b}, z8.b[15]  // 11000001-00011000-11101101-10001111
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx4], { z12.b - z15.b }, z8.b[15]
 // CHECK-ENCODING: [0x8f,0xed,0x18,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c118ed8f <unknown>

 smlsll  za.s[w11, 4:7, vgx4], {z28.b - z31.b}, z15.b[15]  // 11000001-00011111-11101111-10001111
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx4], { z28.b - z31.b }, z15.b[15]
 // CHECK-ENCODING: [0x8f,0xef,0x1f,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c11fef8f <unknown>

 smlsll  za.s[w11, 4:7], {z28.b - z31.b}, z15.b[15]  // 11000001-00011111-11101111-10001111
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx4], { z28.b - z31.b }, z15.b[15]
 // CHECK-ENCODING: [0x8f,0xef,0x1f,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c11fef8f <unknown>

 smlsll  za.s[w8, 4:7, vgx4], {z16.b - z19.b}, z0.b[14]  // 11000001-00010000-10001110-00001101
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx4], { z16.b - z19.b }, z0.b[14]
 // CHECK-ENCODING: [0x0d,0x8e,0x10,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1108e0d <unknown>

 smlsll  za.s[w8, 4:7], {z16.b - z19.b}, z0.b[14]  // 11000001-00010000-10001110-00001101
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx4], { z16.b - z19.b }, z0.b[14]
 // CHECK-ENCODING: [0x0d,0x8e,0x10,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1108e0d <unknown>

 smlsll  za.s[w8, 4:7, vgx4], {z0.b - z3.b}, z14.b[4]  // 11000001-00011110-10000100-00001001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx4], { z0.b - z3.b }, z14.b[4]
 // CHECK-ENCODING: [0x09,0x84,0x1e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c11e8409 <unknown>

 smlsll  za.s[w8, 4:7], {z0.b - z3.b}, z14.b[4]  // 11000001-00011110-10000100-00001001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx4], { z0.b - z3.b }, z14.b[4]
 // CHECK-ENCODING: [0x09,0x84,0x1e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c11e8409 <unknown>

 smlsll  za.s[w10, 0:3, vgx4], {z16.b - z19.b}, z4.b[4]  // 11000001-00010100-11000110-00001000
 // CHECK-INST: smlsll  za.s[w10, 0:3, vgx4], { z16.b - z19.b }, z4.b[4]
 // CHECK-ENCODING: [0x08,0xc6,0x14,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c114c608 <unknown>

 smlsll  za.s[w10, 0:3], {z16.b - z19.b}, z4.b[4]  // 11000001-00010100-11000110-00001000
 // CHECK-INST: smlsll  za.s[w10, 0:3, vgx4], { z16.b - z19.b }, z4.b[4]
 // CHECK-ENCODING: [0x08,0xc6,0x14,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c114c608 <unknown>

 smlsll  za.s[w8, 0:3, vgx4], {z12.b - z15.b}, z2.b[8]  // 11000001-00010010-10001001-10001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx4], { z12.b - z15.b }, z2.b[8]
 // CHECK-ENCODING: [0x88,0x89,0x12,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1128988 <unknown>

 smlsll  za.s[w8, 0:3], {z12.b - z15.b}, z2.b[8]  // 11000001-00010010-10001001-10001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx4], { z12.b - z15.b }, z2.b[8]
 // CHECK-ENCODING: [0x88,0x89,0x12,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1128988 <unknown>

 smlsll  za.s[w10, 4:7, vgx4], {z0.b - z3.b}, z10.b[8]  // 11000001-00011010-11001000-00001001
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx4], { z0.b - z3.b }, z10.b[8]
 // CHECK-ENCODING: [0x09,0xc8,0x1a,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c11ac809 <unknown>

 smlsll  za.s[w10, 4:7], {z0.b - z3.b}, z10.b[8]  // 11000001-00011010-11001000-00001001
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx4], { z0.b - z3.b }, z10.b[8]
 // CHECK-ENCODING: [0x09,0xc8,0x1a,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c11ac809 <unknown>

 smlsll  za.s[w8, 4:7, vgx4], {z20.b - z23.b}, z14.b[10]  // 11000001-00011110-10001010-10001101
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx4], { z20.b - z23.b }, z14.b[10]
 // CHECK-ENCODING: [0x8d,0x8a,0x1e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c11e8a8d <unknown>

 smlsll  za.s[w8, 4:7], {z20.b - z23.b}, z14.b[10]  // 11000001-00011110-10001010-10001101
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx4], { z20.b - z23.b }, z14.b[10]
 // CHECK-ENCODING: [0x8d,0x8a,0x1e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c11e8a8d <unknown>

 smlsll  za.s[w11, 0:3, vgx4], {z8.b - z11.b}, z1.b[5]  // 11000001-00010001-11100101-00001010
 // CHECK-INST: smlsll  za.s[w11, 0:3, vgx4], { z8.b - z11.b }, z1.b[5]
 // CHECK-ENCODING: [0x0a,0xe5,0x11,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c111e50a <unknown>

 smlsll  za.s[w11, 0:3], {z8.b - z11.b}, z1.b[5]  // 11000001-00010001-11100101-00001010
 // CHECK-INST: smlsll  za.s[w11, 0:3, vgx4], { z8.b - z11.b }, z1.b[5]
 // CHECK-ENCODING: [0x0a,0xe5,0x11,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c111e50a <unknown>

 smlsll  za.s[w9, 4:7, vgx4], {z12.b - z15.b}, z11.b[11]  // 11000001-00011011-10101001-10001111
 // CHECK-INST: smlsll  za.s[w9, 4:7, vgx4], { z12.b - z15.b }, z11.b[11]
 // CHECK-ENCODING: [0x8f,0xa9,0x1b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c11ba98f <unknown>

 smlsll  za.s[w9, 4:7], {z12.b - z15.b}, z11.b[11]  // 11000001-00011011-10101001-10001111
 // CHECK-INST: smlsll  za.s[w9, 4:7, vgx4], { z12.b - z15.b }, z11.b[11]
 // CHECK-ENCODING: [0x8f,0xa9,0x1b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c11ba98f <unknown>


 smlsll  za.s[w8, 0:3, vgx4], {z0.b - z3.b}, {z0.b - z3.b}  // 11000001-10100001-00000000-00001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx4], { z0.b - z3.b }, { z0.b - z3.b }
 // CHECK-ENCODING: [0x08,0x00,0xa1,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1a10008 <unknown>

 smlsll  za.s[w8, 0:3], {z0.b - z3.b}, {z0.b - z3.b}  // 11000001-10100001-00000000-00001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx4], { z0.b - z3.b }, { z0.b - z3.b }
 // CHECK-ENCODING: [0x08,0x00,0xa1,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1a10008 <unknown>

 smlsll  za.s[w10, 4:7, vgx4], {z8.b - z11.b}, {z20.b - z23.b}  // 11000001-10110101-01000001-00001001
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx4], { z8.b - z11.b }, { z20.b - z23.b }
 // CHECK-ENCODING: [0x09,0x41,0xb5,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1b54109 <unknown>

 smlsll  za.s[w10, 4:7], {z8.b - z11.b}, {z20.b - z23.b}  // 11000001-10110101-01000001-00001001
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx4], { z8.b - z11.b }, { z20.b - z23.b }
 // CHECK-ENCODING: [0x09,0x41,0xb5,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1b54109 <unknown>

 smlsll  za.s[w11, 4:7, vgx4], {z12.b - z15.b}, {z8.b - z11.b}  // 11000001-10101001-01100001-10001001
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx4], { z12.b - z15.b }, { z8.b - z11.b }
 // CHECK-ENCODING: [0x89,0x61,0xa9,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1a96189 <unknown>

 smlsll  za.s[w11, 4:7], {z12.b - z15.b}, {z8.b - z11.b}  // 11000001-10101001-01100001-10001001
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx4], { z12.b - z15.b }, { z8.b - z11.b }
 // CHECK-ENCODING: [0x89,0x61,0xa9,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1a96189 <unknown>

 smlsll  za.s[w11, 4:7, vgx4], {z28.b - z31.b}, {z28.b - z31.b}  // 11000001-10111101-01100011-10001001
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx4], { z28.b - z31.b }, { z28.b - z31.b }
 // CHECK-ENCODING: [0x89,0x63,0xbd,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1bd6389 <unknown>

 smlsll  za.s[w11, 4:7], {z28.b - z31.b}, {z28.b - z31.b}  // 11000001-10111101-01100011-10001001
 // CHECK-INST: smlsll  za.s[w11, 4:7, vgx4], { z28.b - z31.b }, { z28.b - z31.b }
 // CHECK-ENCODING: [0x89,0x63,0xbd,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1bd6389 <unknown>

 smlsll  za.s[w8, 4:7, vgx4], {z16.b - z19.b}, {z16.b - z19.b}  // 11000001-10110001-00000010-00001001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx4], { z16.b - z19.b }, { z16.b - z19.b }
 // CHECK-ENCODING: [0x09,0x02,0xb1,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1b10209 <unknown>

 smlsll  za.s[w8, 4:7], {z16.b - z19.b}, {z16.b - z19.b}  // 11000001-10110001-00000010-00001001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx4], { z16.b - z19.b }, { z16.b - z19.b }
 // CHECK-ENCODING: [0x09,0x02,0xb1,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1b10209 <unknown>

 smlsll  za.s[w8, 4:7, vgx4], {z0.b - z3.b}, {z28.b - z31.b}  // 11000001-10111101-00000000-00001001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx4], { z0.b - z3.b }, { z28.b - z31.b }
 // CHECK-ENCODING: [0x09,0x00,0xbd,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1bd0009 <unknown>

 smlsll  za.s[w8, 4:7], {z0.b - z3.b}, {z28.b - z31.b}  // 11000001-10111101-00000000-00001001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx4], { z0.b - z3.b }, { z28.b - z31.b }
 // CHECK-ENCODING: [0x09,0x00,0xbd,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1bd0009 <unknown>

 smlsll  za.s[w10, 0:3, vgx4], {z16.b - z19.b}, {z20.b - z23.b}  // 11000001-10110101-01000010-00001000
 // CHECK-INST: smlsll  za.s[w10, 0:3, vgx4], { z16.b - z19.b }, { z20.b - z23.b }
 // CHECK-ENCODING: [0x08,0x42,0xb5,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1b54208 <unknown>

 smlsll  za.s[w10, 0:3], {z16.b - z19.b}, {z20.b - z23.b}  // 11000001-10110101-01000010-00001000
 // CHECK-INST: smlsll  za.s[w10, 0:3, vgx4], { z16.b - z19.b }, { z20.b - z23.b }
 // CHECK-ENCODING: [0x08,0x42,0xb5,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1b54208 <unknown>

 smlsll  za.s[w8, 0:3, vgx4], {z12.b - z15.b}, {z0.b - z3.b}  // 11000001-10100001-00000001-10001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx4], { z12.b - z15.b }, { z0.b - z3.b }
 // CHECK-ENCODING: [0x88,0x01,0xa1,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1a10188 <unknown>

 smlsll  za.s[w8, 0:3], {z12.b - z15.b}, {z0.b - z3.b}  // 11000001-10100001-00000001-10001000
 // CHECK-INST: smlsll  za.s[w8, 0:3, vgx4], { z12.b - z15.b }, { z0.b - z3.b }
 // CHECK-ENCODING: [0x88,0x01,0xa1,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1a10188 <unknown>

 smlsll  za.s[w10, 4:7, vgx4], {z0.b - z3.b}, {z24.b - z27.b}  // 11000001-10111001-01000000-00001001
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx4], { z0.b - z3.b }, { z24.b - z27.b }
 // CHECK-ENCODING: [0x09,0x40,0xb9,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1b94009 <unknown>

 smlsll  za.s[w10, 4:7], {z0.b - z3.b}, {z24.b - z27.b}  // 11000001-10111001-01000000-00001001
 // CHECK-INST: smlsll  za.s[w10, 4:7, vgx4], { z0.b - z3.b }, { z24.b - z27.b }
 // CHECK-ENCODING: [0x09,0x40,0xb9,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1b94009 <unknown>

 smlsll  za.s[w8, 4:7, vgx4], {z20.b - z23.b}, {z28.b - z31.b}  // 11000001-10111101-00000010-10001001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx4], { z20.b - z23.b }, { z28.b - z31.b }
 // CHECK-ENCODING: [0x89,0x02,0xbd,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1bd0289 <unknown>

 smlsll  za.s[w8, 4:7], {z20.b - z23.b}, {z28.b - z31.b}  // 11000001-10111101-00000010-10001001
 // CHECK-INST: smlsll  za.s[w8, 4:7, vgx4], { z20.b - z23.b }, { z28.b - z31.b }
 // CHECK-ENCODING: [0x89,0x02,0xbd,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1bd0289 <unknown>

 smlsll  za.s[w11, 0:3, vgx4], {z8.b - z11.b}, {z0.b - z3.b}  // 11000001-10100001-01100001-00001000
 // CHECK-INST: smlsll  za.s[w11, 0:3, vgx4], { z8.b - z11.b }, { z0.b - z3.b }
 // CHECK-ENCODING: [0x08,0x61,0xa1,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1a16108 <unknown>

 smlsll  za.s[w11, 0:3], {z8.b - z11.b}, {z0.b - z3.b}  // 11000001-10100001-01100001-00001000
 // CHECK-INST: smlsll  za.s[w11, 0:3, vgx4], { z8.b - z11.b }, { z0.b - z3.b }
 // CHECK-ENCODING: [0x08,0x61,0xa1,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1a16108 <unknown>

 smlsll  za.s[w9, 4:7, vgx4], {z12.b - z15.b}, {z8.b - z11.b}  // 11000001-10101001-00100001-10001001
 // CHECK-INST: smlsll  za.s[w9, 4:7, vgx4], { z12.b - z15.b }, { z8.b - z11.b }
 // CHECK-ENCODING: [0x89,0x21,0xa9,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1a92189 <unknown>

 smlsll  za.s[w9, 4:7], {z12.b - z15.b}, {z8.b - z11.b}  // 11000001-10101001-00100001-10001001
 // CHECK-INST: smlsll  za.s[w9, 4:7, vgx4], { z12.b - z15.b }, { z8.b - z11.b }
 // CHECK-ENCODING: [0x89,0x21,0xa9,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1a92189 <unknown>


 smlsll  za.d[w8, 0:3, vgx4], {z0.h - z3.h}, z0.h  // 11000001-01110000-00000000-00001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx4], { z0.h - z3.h }, z0.h
 // CHECK-ENCODING: [0x08,0x00,0x70,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1700008 <unknown>

 smlsll  za.d[w8, 0:3], {z0.h - z3.h}, z0.h  // 11000001-01110000-00000000-00001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx4], { z0.h - z3.h }, z0.h
 // CHECK-ENCODING: [0x08,0x00,0x70,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1700008 <unknown>

 smlsll  za.d[w10, 4:7, vgx4], {z10.h - z13.h}, z5.h  // 11000001-01110101-01000001-01001001
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx4], { z10.h - z13.h }, z5.h
 // CHECK-ENCODING: [0x49,0x41,0x75,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1754149 <unknown>

 smlsll  za.d[w10, 4:7], {z10.h - z13.h}, z5.h  // 11000001-01110101-01000001-01001001
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx4], { z10.h - z13.h }, z5.h
 // CHECK-ENCODING: [0x49,0x41,0x75,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1754149 <unknown>

 smlsll  za.d[w11, 4:7, vgx4], {z13.h - z16.h}, z8.h  // 11000001-01111000-01100001-10101001
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx4], { z13.h - z16.h }, z8.h
 // CHECK-ENCODING: [0xa9,0x61,0x78,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c17861a9 <unknown>

 smlsll  za.d[w11, 4:7], {z13.h - z16.h}, z8.h  // 11000001-01111000-01100001-10101001
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx4], { z13.h - z16.h }, z8.h
 // CHECK-ENCODING: [0xa9,0x61,0x78,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c17861a9 <unknown>

 smlsll  za.d[w11, 4:7, vgx4], {z31.h, z0.h, z1.h, z2.h}, z15.h  // 11000001-01111111-01100011-11101001
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx4], { z31.h, z0.h, z1.h, z2.h }, z15.h
 // CHECK-ENCODING: [0xe9,0x63,0x7f,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c17f63e9 <unknown>

 smlsll  za.d[w11, 4:7], {z31.h, z0.h, z1.h, z2.h}, z15.h  // 11000001-01111111-01100011-11101001
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx4], { z31.h, z0.h, z1.h, z2.h }, z15.h
 // CHECK-ENCODING: [0xe9,0x63,0x7f,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c17f63e9 <unknown>

 smlsll  za.d[w8, 4:7, vgx4], {z17.h - z20.h}, z0.h  // 11000001-01110000-00000010-00101001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx4], { z17.h - z20.h }, z0.h
 // CHECK-ENCODING: [0x29,0x02,0x70,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1700229 <unknown>

 smlsll  za.d[w8, 4:7], {z17.h - z20.h}, z0.h  // 11000001-01110000-00000010-00101001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx4], { z17.h - z20.h }, z0.h
 // CHECK-ENCODING: [0x29,0x02,0x70,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1700229 <unknown>

 smlsll  za.d[w8, 4:7, vgx4], {z1.h - z4.h}, z14.h  // 11000001-01111110-00000000-00101001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx4], { z1.h - z4.h }, z14.h
 // CHECK-ENCODING: [0x29,0x00,0x7e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c17e0029 <unknown>

 smlsll  za.d[w8, 4:7], {z1.h - z4.h}, z14.h  // 11000001-01111110-00000000-00101001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx4], { z1.h - z4.h }, z14.h
 // CHECK-ENCODING: [0x29,0x00,0x7e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c17e0029 <unknown>

 smlsll  za.d[w10, 0:3, vgx4], {z19.h - z22.h}, z4.h  // 11000001-01110100-01000010-01101000
 // CHECK-INST: smlsll  za.d[w10, 0:3, vgx4], { z19.h - z22.h }, z4.h
 // CHECK-ENCODING: [0x68,0x42,0x74,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1744268 <unknown>

 smlsll  za.d[w10, 0:3], {z19.h - z22.h}, z4.h  // 11000001-01110100-01000010-01101000
 // CHECK-INST: smlsll  za.d[w10, 0:3, vgx4], { z19.h - z22.h }, z4.h
 // CHECK-ENCODING: [0x68,0x42,0x74,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1744268 <unknown>

 smlsll  za.d[w8, 0:3, vgx4], {z12.h - z15.h}, z2.h  // 11000001-01110010-00000001-10001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx4], { z12.h - z15.h }, z2.h
 // CHECK-ENCODING: [0x88,0x01,0x72,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1720188 <unknown>

 smlsll  za.d[w8, 0:3], {z12.h - z15.h}, z2.h  // 11000001-01110010-00000001-10001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx4], { z12.h - z15.h }, z2.h
 // CHECK-ENCODING: [0x88,0x01,0x72,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1720188 <unknown>

 smlsll  za.d[w10, 4:7, vgx4], {z1.h - z4.h}, z10.h  // 11000001-01111010-01000000-00101001
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx4], { z1.h - z4.h }, z10.h
 // CHECK-ENCODING: [0x29,0x40,0x7a,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c17a4029 <unknown>

 smlsll  za.d[w10, 4:7], {z1.h - z4.h}, z10.h  // 11000001-01111010-01000000-00101001
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx4], { z1.h - z4.h }, z10.h
 // CHECK-ENCODING: [0x29,0x40,0x7a,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c17a4029 <unknown>

 smlsll  za.d[w8, 4:7, vgx4], {z22.h - z25.h}, z14.h  // 11000001-01111110-00000010-11001001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx4], { z22.h - z25.h }, z14.h
 // CHECK-ENCODING: [0xc9,0x02,0x7e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c17e02c9 <unknown>

 smlsll  za.d[w8, 4:7], {z22.h - z25.h}, z14.h  // 11000001-01111110-00000010-11001001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx4], { z22.h - z25.h }, z14.h
 // CHECK-ENCODING: [0xc9,0x02,0x7e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c17e02c9 <unknown>

 smlsll  za.d[w11, 0:3, vgx4], {z9.h - z12.h}, z1.h  // 11000001-01110001-01100001-00101000
 // CHECK-INST: smlsll  za.d[w11, 0:3, vgx4], { z9.h - z12.h }, z1.h
 // CHECK-ENCODING: [0x28,0x61,0x71,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1716128 <unknown>

 smlsll  za.d[w11, 0:3], {z9.h - z12.h}, z1.h  // 11000001-01110001-01100001-00101000
 // CHECK-INST: smlsll  za.d[w11, 0:3, vgx4], { z9.h - z12.h }, z1.h
 // CHECK-ENCODING: [0x28,0x61,0x71,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1716128 <unknown>

 smlsll  za.d[w9, 4:7, vgx4], {z12.h - z15.h}, z11.h  // 11000001-01111011-00100001-10001001
 // CHECK-INST: smlsll  za.d[w9, 4:7, vgx4], { z12.h - z15.h }, z11.h
 // CHECK-ENCODING: [0x89,0x21,0x7b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c17b2189 <unknown>

 smlsll  za.d[w9, 4:7], {z12.h - z15.h}, z11.h  // 11000001-01111011-00100001-10001001
 // CHECK-INST: smlsll  za.d[w9, 4:7, vgx4], { z12.h - z15.h }, z11.h
 // CHECK-ENCODING: [0x89,0x21,0x7b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c17b2189 <unknown>


 smlsll  za.d[w8, 0:3, vgx4], {z0.h - z3.h}, z0.h[0]  // 11000001-10010000-10000000-00001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx4], { z0.h - z3.h }, z0.h[0]
 // CHECK-ENCODING: [0x08,0x80,0x90,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1908008 <unknown>

 smlsll  za.d[w8, 0:3], {z0.h - z3.h}, z0.h[0]  // 11000001-10010000-10000000-00001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx4], { z0.h - z3.h }, z0.h[0]
 // CHECK-ENCODING: [0x08,0x80,0x90,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1908008 <unknown>

 smlsll  za.d[w10, 4:7, vgx4], {z8.h - z11.h}, z5.h[6]  // 11000001-10010101-11000101-00001101
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx4], { z8.h - z11.h }, z5.h[6]
 // CHECK-ENCODING: [0x0d,0xc5,0x95,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c195c50d <unknown>

 smlsll  za.d[w10, 4:7], {z8.h - z11.h}, z5.h[6]  // 11000001-10010101-11000101-00001101
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx4], { z8.h - z11.h }, z5.h[6]
 // CHECK-ENCODING: [0x0d,0xc5,0x95,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c195c50d <unknown>

 smlsll  za.d[w11, 4:7, vgx4], {z12.h - z15.h}, z8.h[7]  // 11000001-10011000-11100101-10001111
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx4], { z12.h - z15.h }, z8.h[7]
 // CHECK-ENCODING: [0x8f,0xe5,0x98,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c198e58f <unknown>

 smlsll  za.d[w11, 4:7], {z12.h - z15.h}, z8.h[7]  // 11000001-10011000-11100101-10001111
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx4], { z12.h - z15.h }, z8.h[7]
 // CHECK-ENCODING: [0x8f,0xe5,0x98,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c198e58f <unknown>

 smlsll  za.d[w11, 4:7, vgx4], {z28.h - z31.h}, z15.h[7]  // 11000001-10011111-11100111-10001111
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx4], { z28.h - z31.h }, z15.h[7]
 // CHECK-ENCODING: [0x8f,0xe7,0x9f,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c19fe78f <unknown>

 smlsll  za.d[w11, 4:7], {z28.h - z31.h}, z15.h[7]  // 11000001-10011111-11100111-10001111
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx4], { z28.h - z31.h }, z15.h[7]
 // CHECK-ENCODING: [0x8f,0xe7,0x9f,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c19fe78f <unknown>

 smlsll  za.d[w8, 4:7, vgx4], {z16.h - z19.h}, z0.h[6]  // 11000001-10010000-10000110-00001101
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx4], { z16.h - z19.h }, z0.h[6]
 // CHECK-ENCODING: [0x0d,0x86,0x90,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c190860d <unknown>

 smlsll  za.d[w8, 4:7], {z16.h - z19.h}, z0.h[6]  // 11000001-10010000-10000110-00001101
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx4], { z16.h - z19.h }, z0.h[6]
 // CHECK-ENCODING: [0x0d,0x86,0x90,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c190860d <unknown>

 smlsll  za.d[w8, 4:7, vgx4], {z0.h - z3.h}, z14.h[4]  // 11000001-10011110-10000100-00001001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx4], { z0.h - z3.h }, z14.h[4]
 // CHECK-ENCODING: [0x09,0x84,0x9e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c19e8409 <unknown>

 smlsll  za.d[w8, 4:7], {z0.h - z3.h}, z14.h[4]  // 11000001-10011110-10000100-00001001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx4], { z0.h - z3.h }, z14.h[4]
 // CHECK-ENCODING: [0x09,0x84,0x9e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c19e8409 <unknown>

 smlsll  za.d[w10, 0:3, vgx4], {z16.h - z19.h}, z4.h[4]  // 11000001-10010100-11000110-00001000
 // CHECK-INST: smlsll  za.d[w10, 0:3, vgx4], { z16.h - z19.h }, z4.h[4]
 // CHECK-ENCODING: [0x08,0xc6,0x94,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c194c608 <unknown>

 smlsll  za.d[w10, 0:3], {z16.h - z19.h}, z4.h[4]  // 11000001-10010100-11000110-00001000
 // CHECK-INST: smlsll  za.d[w10, 0:3, vgx4], { z16.h - z19.h }, z4.h[4]
 // CHECK-ENCODING: [0x08,0xc6,0x94,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c194c608 <unknown>

 smlsll  za.d[w8, 0:3, vgx4], {z12.h - z15.h}, z2.h[0]  // 11000001-10010010-10000001-10001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx4], { z12.h - z15.h }, z2.h[0]
 // CHECK-ENCODING: [0x88,0x81,0x92,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1928188 <unknown>

 smlsll  za.d[w8, 0:3], {z12.h - z15.h}, z2.h[0]  // 11000001-10010010-10000001-10001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx4], { z12.h - z15.h }, z2.h[0]
 // CHECK-ENCODING: [0x88,0x81,0x92,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1928188 <unknown>

 smlsll  za.d[w10, 4:7, vgx4], {z0.h - z3.h}, z10.h[0]  // 11000001-10011010-11000000-00001001
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx4], { z0.h - z3.h }, z10.h[0]
 // CHECK-ENCODING: [0x09,0xc0,0x9a,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c19ac009 <unknown>

 smlsll  za.d[w10, 4:7], {z0.h - z3.h}, z10.h[0]  // 11000001-10011010-11000000-00001001
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx4], { z0.h - z3.h }, z10.h[0]
 // CHECK-ENCODING: [0x09,0xc0,0x9a,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c19ac009 <unknown>

 smlsll  za.d[w8, 4:7, vgx4], {z20.h - z23.h}, z14.h[2]  // 11000001-10011110-10000010-10001101
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx4], { z20.h - z23.h }, z14.h[2]
 // CHECK-ENCODING: [0x8d,0x82,0x9e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c19e828d <unknown>

 smlsll  za.d[w8, 4:7], {z20.h - z23.h}, z14.h[2]  // 11000001-10011110-10000010-10001101
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx4], { z20.h - z23.h }, z14.h[2]
 // CHECK-ENCODING: [0x8d,0x82,0x9e,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c19e828d <unknown>

 smlsll  za.d[w11, 0:3, vgx4], {z8.h - z11.h}, z1.h[5]  // 11000001-10010001-11100101-00001010
 // CHECK-INST: smlsll  za.d[w11, 0:3, vgx4], { z8.h - z11.h }, z1.h[5]
 // CHECK-ENCODING: [0x0a,0xe5,0x91,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c191e50a <unknown>

 smlsll  za.d[w11, 0:3], {z8.h - z11.h}, z1.h[5]  // 11000001-10010001-11100101-00001010
 // CHECK-INST: smlsll  za.d[w11, 0:3, vgx4], { z8.h - z11.h }, z1.h[5]
 // CHECK-ENCODING: [0x0a,0xe5,0x91,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c191e50a <unknown>

 smlsll  za.d[w9, 4:7, vgx4], {z12.h - z15.h}, z11.h[3]  // 11000001-10011011-10100001-10001111
 // CHECK-INST: smlsll  za.d[w9, 4:7, vgx4], { z12.h - z15.h }, z11.h[3]
 // CHECK-ENCODING: [0x8f,0xa1,0x9b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c19ba18f <unknown>

 smlsll  za.d[w9, 4:7], {z12.h - z15.h}, z11.h[3]  // 11000001-10011011-10100001-10001111
 // CHECK-INST: smlsll  za.d[w9, 4:7, vgx4], { z12.h - z15.h }, z11.h[3]
 // CHECK-ENCODING: [0x8f,0xa1,0x9b,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c19ba18f <unknown>


 smlsll  za.d[w8, 0:3, vgx4], {z0.h - z3.h}, {z0.h - z3.h}  // 11000001-11100001-00000000-00001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx4], { z0.h - z3.h }, { z0.h - z3.h }
 // CHECK-ENCODING: [0x08,0x00,0xe1,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1e10008 <unknown>

 smlsll  za.d[w8, 0:3], {z0.h - z3.h}, {z0.h - z3.h}  // 11000001-11100001-00000000-00001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx4], { z0.h - z3.h }, { z0.h - z3.h }
 // CHECK-ENCODING: [0x08,0x00,0xe1,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1e10008 <unknown>

 smlsll  za.d[w10, 4:7, vgx4], {z8.h - z11.h}, {z20.h - z23.h}  // 11000001-11110101-01000001-00001001
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx4], { z8.h - z11.h }, { z20.h - z23.h }
 // CHECK-ENCODING: [0x09,0x41,0xf5,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1f54109 <unknown>

 smlsll  za.d[w10, 4:7], {z8.h - z11.h}, {z20.h - z23.h}  // 11000001-11110101-01000001-00001001
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx4], { z8.h - z11.h }, { z20.h - z23.h }
 // CHECK-ENCODING: [0x09,0x41,0xf5,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1f54109 <unknown>

 smlsll  za.d[w11, 4:7, vgx4], {z12.h - z15.h}, {z8.h - z11.h}  // 11000001-11101001-01100001-10001001
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx4], { z12.h - z15.h }, { z8.h - z11.h }
 // CHECK-ENCODING: [0x89,0x61,0xe9,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1e96189 <unknown>

 smlsll  za.d[w11, 4:7], {z12.h - z15.h}, {z8.h - z11.h}  // 11000001-11101001-01100001-10001001
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx4], { z12.h - z15.h }, { z8.h - z11.h }
 // CHECK-ENCODING: [0x89,0x61,0xe9,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1e96189 <unknown>

 smlsll  za.d[w11, 4:7, vgx4], {z28.h - z31.h}, {z28.h - z31.h}  // 11000001-11111101-01100011-10001001
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx4], { z28.h - z31.h }, { z28.h - z31.h }
 // CHECK-ENCODING: [0x89,0x63,0xfd,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1fd6389 <unknown>

 smlsll  za.d[w11, 4:7], {z28.h - z31.h}, {z28.h - z31.h}  // 11000001-11111101-01100011-10001001
 // CHECK-INST: smlsll  za.d[w11, 4:7, vgx4], { z28.h - z31.h }, { z28.h - z31.h }
 // CHECK-ENCODING: [0x89,0x63,0xfd,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1fd6389 <unknown>

 smlsll  za.d[w8, 4:7, vgx4], {z16.h - z19.h}, {z16.h - z19.h}  // 11000001-11110001-00000010-00001001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx4], { z16.h - z19.h }, { z16.h - z19.h }
 // CHECK-ENCODING: [0x09,0x02,0xf1,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1f10209 <unknown>

 smlsll  za.d[w8, 4:7], {z16.h - z19.h}, {z16.h - z19.h}  // 11000001-11110001-00000010-00001001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx4], { z16.h - z19.h }, { z16.h - z19.h }
 // CHECK-ENCODING: [0x09,0x02,0xf1,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1f10209 <unknown>

 smlsll  za.d[w8, 4:7, vgx4], {z0.h - z3.h}, {z28.h - z31.h}  // 11000001-11111101-00000000-00001001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx4], { z0.h - z3.h }, { z28.h - z31.h }
 // CHECK-ENCODING: [0x09,0x00,0xfd,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1fd0009 <unknown>

 smlsll  za.d[w8, 4:7], {z0.h - z3.h}, {z28.h - z31.h}  // 11000001-11111101-00000000-00001001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx4], { z0.h - z3.h }, { z28.h - z31.h }
 // CHECK-ENCODING: [0x09,0x00,0xfd,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1fd0009 <unknown>

 smlsll  za.d[w10, 0:3, vgx4], {z16.h - z19.h}, {z20.h - z23.h}  // 11000001-11110101-01000010-00001000
 // CHECK-INST: smlsll  za.d[w10, 0:3, vgx4], { z16.h - z19.h }, { z20.h - z23.h }
 // CHECK-ENCODING: [0x08,0x42,0xf5,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1f54208 <unknown>

 smlsll  za.d[w10, 0:3], {z16.h - z19.h}, {z20.h - z23.h}  // 11000001-11110101-01000010-00001000
 // CHECK-INST: smlsll  za.d[w10, 0:3, vgx4], { z16.h - z19.h }, { z20.h - z23.h }
 // CHECK-ENCODING: [0x08,0x42,0xf5,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1f54208 <unknown>

 smlsll  za.d[w8, 0:3, vgx4], {z12.h - z15.h}, {z0.h - z3.h}  // 11000001-11100001-00000001-10001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx4], { z12.h - z15.h }, { z0.h - z3.h }
 // CHECK-ENCODING: [0x88,0x01,0xe1,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1e10188 <unknown>

 smlsll  za.d[w8, 0:3], {z12.h - z15.h}, {z0.h - z3.h}  // 11000001-11100001-00000001-10001000
 // CHECK-INST: smlsll  za.d[w8, 0:3, vgx4], { z12.h - z15.h }, { z0.h - z3.h }
 // CHECK-ENCODING: [0x88,0x01,0xe1,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1e10188 <unknown>

 smlsll  za.d[w10, 4:7, vgx4], {z0.h - z3.h}, {z24.h - z27.h}  // 11000001-11111001-01000000-00001001
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx4], { z0.h - z3.h }, { z24.h - z27.h }
 // CHECK-ENCODING: [0x09,0x40,0xf9,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1f94009 <unknown>

 smlsll  za.d[w10, 4:7], {z0.h - z3.h}, {z24.h - z27.h}  // 11000001-11111001-01000000-00001001
 // CHECK-INST: smlsll  za.d[w10, 4:7, vgx4], { z0.h - z3.h }, { z24.h - z27.h }
 // CHECK-ENCODING: [0x09,0x40,0xf9,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1f94009 <unknown>

 smlsll  za.d[w8, 4:7, vgx4], {z20.h - z23.h}, {z28.h - z31.h}  // 11000001-11111101-00000010-10001001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx4], { z20.h - z23.h }, { z28.h - z31.h }
 // CHECK-ENCODING: [0x89,0x02,0xfd,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1fd0289 <unknown>

 smlsll  za.d[w8, 4:7], {z20.h - z23.h}, {z28.h - z31.h}  // 11000001-11111101-00000010-10001001
 // CHECK-INST: smlsll  za.d[w8, 4:7, vgx4], { z20.h - z23.h }, { z28.h - z31.h }
 // CHECK-ENCODING: [0x89,0x02,0xfd,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1fd0289 <unknown>

 smlsll  za.d[w11, 0:3, vgx4], {z8.h - z11.h}, {z0.h - z3.h}  // 11000001-11100001-01100001-00001000
 // CHECK-INST: smlsll  za.d[w11, 0:3, vgx4], { z8.h - z11.h }, { z0.h - z3.h }
 // CHECK-ENCODING: [0x08,0x61,0xe1,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1e16108 <unknown>

 smlsll  za.d[w11, 0:3], {z8.h - z11.h}, {z0.h - z3.h}  // 11000001-11100001-01100001-00001000
 // CHECK-INST: smlsll  za.d[w11, 0:3, vgx4], { z8.h - z11.h }, { z0.h - z3.h }
 // CHECK-ENCODING: [0x08,0x61,0xe1,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1e16108 <unknown>

 smlsll  za.d[w9, 4:7, vgx4], {z12.h - z15.h}, {z8.h - z11.h}  // 11000001-11101001-00100001-10001001
 // CHECK-INST: smlsll  za.d[w9, 4:7, vgx4], { z12.h - z15.h }, { z8.h - z11.h }
 // CHECK-ENCODING: [0x89,0x21,0xe9,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1e92189 <unknown>

 smlsll  za.d[w9, 4:7], {z12.h - z15.h}, {z8.h - z11.h}  // 11000001-11101001-00100001-10001001
 // CHECK-INST: smlsll  za.d[w9, 4:7, vgx4], { z12.h - z15.h }, { z8.h - z11.h }
 // CHECK-ENCODING: [0x89,0x21,0xe9,0xc1]
 // CHECK-ERROR: instruction requires: sme2
 // CHECK-UNKNOWN: c1e92189 <unknown>