[AArch64] Add dot product support for AArch64 to binutils

gas/
	* config/tc-aarch64.c (aarch64_reg_parse_32_64): Accept 4B.
	(aarch64_features): Added dotprod.
	* doc/c-aarch64.texi: Added dotprod.
	* testsuite/gas/aarch64/dotproduct.d: New.
	* testsuite/gas/aarch64/dotproduct.s: New.

opcodes/
	* aarch64-asm.c (aarch64_ins_reglane): Added 4B dotprod.
	* aarch64-dis.c (aarch64_ext_reglane): Likewise.
	* aarch64-tbl.h (QL_V3DOT, QL_V2DOT): New.
	(aarch64_feature_dotprod, DOT_INSN): New.
	(udot, sdot): New.
	* aarch64-dis-2.c: Regenerated.

include/
	* opcode/aarch64.h: (AARCH64_FEATURE_DOTPROD): New.
	(aarch64_insn_class): Added dotprod.

5 files changed, 265 insertions, 179 deletions

diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index 8cc85205d0..db23da3206 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,12 @@
+2017-06-28  Tamar Christina  <tamar.christina@arm.com>
+
+	* aarch64-asm.c (aarch64_ins_reglane): Added 4B dotprod.
+	* aarch64-dis.c (aarch64_ext_reglane): Likewise.
+	* aarch64-tbl.h (QL_V3DOT, QL_V2DOT): New.
+	(aarch64_feature_dotprod, DOT_INSN): New.
+	(udot, sdot): New.
+	* aarch64-dis-2.c: Regenerated.
+
 2017-06-28  Jiong Wang  <jiong.wang@arm.com>
 
 	* arm-dis.c (coprocessor_opcodes): New entries for vsdot and vudot.
diff --git a/opcodes/aarch64-asm.c b/opcodes/aarch64-asm.c
index 6d2c75a068..345d59902e 100644
--- a/opcodes/aarch64-asm.c
+++ b/opcodes/aarch64-asm.c
@@ -121,6 +121,20 @@ aarch64_ins_reglane (const aarch64_operand *self, const aarch64_opnd_info *info,
 	  insert_field (FLD_imm5, code, value, 0);
 	}
     }
+  else if (inst->opcode->iclass == dotproduct)
+    {
+      unsigned reglane_index = info->reglane.index;
+      switch (info->qualifier)
+	{
+	case AARCH64_OPND_QLF_S_B:
+	  /* L:H */
+	  assert (reglane_index < 4);
+	  insert_fields (code, reglane_index, 0, 2, FLD_L, FLD_H);
+	  break;
+	default:
+	  assert (0);
+	}
+    }
   else
     {
       /* index for e.g. SQDMLAL <Va><d>, <Vb><n>, <Vm>.<Ts>[<index>]
diff --git a/opcodes/aarch64-dis-2.c b/opcodes/aarch64-dis-2.c
index fe71ebc518..bbe066929e 100644
--- a/opcodes/aarch64-dis-2.c
+++ b/opcodes/aarch64-dis-2.c
@@ -12771,11 +12771,33 @@ aarch64_opcode_lookup_1 (uint32_t word)
                                         {
                                           if (((word >> 11) & 0x1) == 0)
                                             {
-                                              /* 33222222222211111111110000000000
-                                                 10987654321098765432109876543210
-                                                 xxxxxxxxxx10x001xxxxx0xx01110xxx
-                                                 sqrdmlah.  */
-                                              return 364;
+                                              if (((word >> 12) & 0x1) == 0)
+                                                {
+                                                  /* 33222222222211111111110000000000
+                                                     10987654321098765432109876543210
+                                                     xxxxxxxxxx100001xxxxx0xx01110xxx
+                                                     sqrdmlah.  */
+                                                  return 364;
+                                                }
+                                              else
+                                                {
+                                                  if (((word >> 29) & 0x1) == 0)
+                                                    {
+                                                      /* 33222222222211111111110000000000
+                                                         10987654321098765432109876543210
+                                                         xxxxxxxxxx101001xxxxx0xx011100xx
+                                                         sdot.  */
+                                                      return 1987;
+                                                    }
+                                                  else
+                                                    {
+                                                      /* 33222222222211111111110000000000
+                                                         10987654321098765432109876543210
+                                                         xxxxxxxxxx101001xxxxx0xx011101xx
+                                                         udot.  */
+                                                      return 1986;
+                                                    }
+                                                }
                                             }
                                           else
                                             {
@@ -17931,13 +17953,13 @@ aarch64_opcode_lookup_1 (uint32_t word)
                     {
                       if (((word >> 28) & 0x1) == 0)
                         {
-                          if (((word >> 10) & 0x1) == 0)
+                          if (((word >> 14) & 0x1) == 0)
                             {
-                              if (((word >> 12) & 0x1) == 0)
+                              if (((word >> 10) & 0x1) == 0)
                                 {
-                                  if (((word >> 13) & 0x1) == 0)
+                                  if (((word >> 12) & 0x1) == 0)
                                     {
-                                      if (((word >> 14) & 0x1) == 0)
+                                      if (((word >> 13) & 0x1) == 0)
                                         {
                                           /* 33222222222211111111110000000000
                                              10987654321098765432109876543210
@@ -17947,60 +17969,49 @@ aarch64_opcode_lookup_1 (uint32_t word)
                                         }
                                       else
                                         {
-                                          /* 33222222222211111111110000000000
-                                             10987654321098765432109876543210
-                                             xxxxxxxxxx0x0011xxxxxxxx11110xxx
-                                             sqdmulh.  */
-                                          return 109;
-                                        }
-                                    }
-                                  else
-                                    {
-                                      if (((word >> 29) & 0x1) == 0)
-                                        {
-                                          if (((word >> 30) & 0x1) == 0)
-                                            {
-                                              /* 33222222222211111111110000000000
-                                                 10987654321098765432109876543210
-                                                 xxxxxxxxxx0x01x1xxxxxxxx1111000x
-                                                 smull.  */
-                                              return 105;
-                                            }
-                                          else
-                                            {
-                                              /* 33222222222211111111110000000000
-                                                 10987654321098765432109876543210
-                                                 xxxxxxxxxx0x01x1xxxxxxxx1111001x
-                                                 smull2.  */
-                                              return 106;
-                                            }
-                                        }
-                                      else
-                                        {
-                                          if (((word >> 30) & 0x1) == 0)
+                                          if (((word >> 29) & 0x1) == 0)
                                             {
-                                              /* 33222222222211111111110000000000
-                                                 10987654321098765432109876543210
-                                                 xxxxxxxxxx0x01x1xxxxxxxx1111010x
-                                                 umull.  */
-                                              return 123;
+                                              if (((word >> 30) & 0x1) == 0)
+                                                {
+                                                  /* 33222222222211111111110000000000
+                                                     10987654321098765432109876543210
+                                                     xxxxxxxxxx0x0101xxxxxxxx1111000x
+                                                     smull.  */
+                                                  return 105;
+                                                }
+                                              else
+                                                {
+                                                  /* 33222222222211111111110000000000
+                                                     10987654321098765432109876543210
+                                                     xxxxxxxxxx0x0101xxxxxxxx1111001x
+                                                     smull2.  */
+                                                  return 106;
+                                                }
                                             }
                                           else
                                             {
-                                              /* 33222222222211111111110000000000
-                                                 10987654321098765432109876543210
-                                                 xxxxxxxxxx0x01x1xxxxxxxx1111011x
-                                                 umull2.  */
-                                              return 124;
+                                              if (((word >> 30) & 0x1) == 0)
+                                                {
+                                                  /* 33222222222211111111110000000000
+                                                     10987654321098765432109876543210
+                                                     xxxxxxxxxx0x0101xxxxxxxx1111010x
+                                                     umull.  */
+                                                  return 123;
+                                                }
+                                              else
+                                                {
+                                                  /* 33222222222211111111110000000000
+                                                     10987654321098765432109876543210
+                                                     xxxxxxxxxx0x0101xxxxxxxx1111011x
+                                                     umull2.  */
+                                                  return 124;
+                                                }
                                             }
                                         }
                                     }
-                                }
-                              else
-                                {
-                                  if (((word >> 13) & 0x1) == 0)
+                                  else
                                     {
-                                      if (((word >> 14) & 0x1) == 0)
+                                      if (((word >> 13) & 0x1) == 0)
                                         {
                                           if (((word >> 23) & 0x1) == 0)
                                             {
@@ -18043,28 +18054,6 @@ aarch64_opcode_lookup_1 (uint32_t word)
                                         }
                                       else
                                         {
-                                          if (((word >> 29) & 0x1) == 0)
-                                            {
-                                              /* 33222222222211111111110000000000
-                                                 10987654321098765432109876543210
-                                                 xxxxxxxxxx0x1011xxxxxxxx111100xx
-                                                 sqrdmulh.  */
-                                              return 110;
-                                            }
-                                          else
-                                            {
-                                              /* 33222222222211111111110000000000
-                                                 10987654321098765432109876543210
-                                                 xxxxxxxxxx0x1011xxxxxxxx111101xx
-                                                 sqrdmlah.  */
-                                              return 127;
-                                            }
-                                        }
-                                    }
-                                  else
-                                    {
-                                      if (((word >> 14) & 0x1) == 0)
-                                        {
                                           if (((word >> 30) & 0x1) == 0)
                                             {
                                               /* 33222222222211111111110000000000
@@ -18082,22 +18071,11 @@ aarch64_opcode_lookup_1 (uint32_t word)
                                               return 108;
                                             }
                                         }
-                                      else
-                                        {
-                                          /* 33222222222211111111110000000000
-                                             10987654321098765432109876543210
-                                             xxxxxxxxxx0x1111xxxxxxxx11110xxx
-                                             sqrdmlsh.  */
-                                          return 128;
-                                        }
                                     }
                                 }
-                            }
-                          else
-                            {
-                              if (((word >> 11) & 0x1) == 0)
+                              else
                                 {
-                                  if (((word >> 14) & 0x1) == 0)
+                                  if (((word >> 11) & 0x1) == 0)
                                     {
                                       if (((word >> 12) & 0x1) == 0)
                                         {
@@ -18140,173 +18118,217 @@ aarch64_opcode_lookup_1 (uint32_t word)
                                     }
                                   else
                                     {
-                                      if (((word >> 13) & 0x1) == 0)
+                                      if (((word >> 12) & 0x1) == 0)
                                         {
                                           if (((word >> 29) & 0x1) == 0)
                                             {
-                                              /* 33222222222211111111110000000000
-                                                 10987654321098765432109876543210
-                                                 xxxxxxxxxx10x011xxxxxxxx111100xx
-                                                 movi.  */
-                                              return 135;
+                                              if (((word >> 30) & 0x1) == 0)
+                                                {
+                                                  /* 33222222222211111111110000000000
+                                                     10987654321098765432109876543210
+                                                     xxxxxxxxxx110x01xxxxxxxx1111000x
+                                                     rshrn.  */
+                                                  return 376;
+                                                }
+                                              else
+                                                {
+                                                  /* 33222222222211111111110000000000
+                                                     10987654321098765432109876543210
+                                                     xxxxxxxxxx110x01xxxxxxxx1111001x
+                                                     rshrn2.  */
+                                                  return 377;
+                                                }
                                             }
                                           else
                                             {
-                                              /* 33222222222211111111110000000000
-                                                 10987654321098765432109876543210
-                                                 xxxxxxxxxx10x011xxxxxxxx111101xx
-                                                 mvni.  */
-                                              return 143;
+                                              if (((word >> 30) & 0x1) == 0)
+                                                {
+                                                  /* 33222222222211111111110000000000
+                                                     10987654321098765432109876543210
+                                                     xxxxxxxxxx110x01xxxxxxxx1111010x
+                                                     sqrshrun.  */
+                                                  return 400;
+                                                }
+                                              else
+                                                {
+                                                  /* 33222222222211111111110000000000
+                                                     10987654321098765432109876543210
+                                                     xxxxxxxxxx110x01xxxxxxxx1111011x
+                                                     sqrshrun2.  */
+                                                  return 401;
+                                                }
                                             }
                                         }
                                       else
                                         {
-                                          if (((word >> 12) & 0x1) == 0)
+                                          if (((word >> 29) & 0x1) == 0)
                                             {
-                                              if (((word >> 29) & 0x1) == 0)
+                                              if (((word >> 30) & 0x1) == 0)
                                                 {
                                                   /* 33222222222211111111110000000000
                                                      10987654321098765432109876543210
-                                                     xxxxxxxxxx100111xxxxxxxx111100xx
-                                                     movi.  */
-                                                  return 136;
+                                                     xxxxxxxxxx111x01xxxxxxxx1111000x
+                                                     sqrshrn.  */
+                                                  return 380;
                                                 }
                                               else
                                                 {
                                                   /* 33222222222211111111110000000000
                                                      10987654321098765432109876543210
-                                                     xxxxxxxxxx100111xxxxxxxx111101xx
-                                                     movi.  */
-                                                  return 144;
+                                                     xxxxxxxxxx111x01xxxxxxxx1111001x
+                                                     sqrshrn2.  */
+                                                  return 381;
                                                 }
                                             }
                                           else
                                             {
-                                              if (((word >> 29) & 0x1) == 0)
+                                              if (((word >> 30) & 0x1) == 0)
                                                 {
                                                   /* 33222222222211111111110000000000
                                                      10987654321098765432109876543210
-                                                     xxxxxxxxxx101111xxxxxxxx111100xx
-                                                     fmov.  */
-                                                  return 137;
+                                                     xxxxxxxxxx111x01xxxxxxxx1111010x
+                                                     uqrshrn.  */
+                                                  return 404;
                                                 }
                                               else
                                                 {
                                                   /* 33222222222211111111110000000000
                                                      10987654321098765432109876543210
-                                                     xxxxxxxxxx101111xxxxxxxx111101xx
-                                                     fmov.  */
-                                                  return 146;
+                                                     xxxxxxxxxx111x01xxxxxxxx1111011x
+                                                     uqrshrn2.  */
+                                                  return 405;
                                                 }
                                             }
                                         }
                                     }
                                 }
-                              else
+                            }
+                          else
+                            {
+                              if (((word >> 13) & 0x1) == 0)
                                 {
-                                  if (((word >> 12) & 0x1) == 0)
+                                  if (((word >> 10) & 0x1) == 0)
                                     {
-                                      if (((word >> 29) & 0x1) == 0)
+                                      if (((word >> 12) & 0x1) == 0)
                                         {
-                                          if (((word >> 30) & 0x1) == 0)
-                                            {
-                                              /* 33222222222211111111110000000000
-                                                 10987654321098765432109876543210
-                                                 xxxxxxxxxx110xx1xxxxxxxx1111000x
-                                                 rshrn.  */
-                                              return 376;
-                                            }
-                                          else
-                                            {
-                                              /* 33222222222211111111110000000000
-                                                 10987654321098765432109876543210
-                                                 xxxxxxxxxx110xx1xxxxxxxx1111001x
-                                                 rshrn2.  */
-                                              return 377;
-                                            }
+                                          /* 33222222222211111111110000000000
+                                             10987654321098765432109876543210
+                                             xxxxxxxxxx0x0011xxxxxxxx11110xxx
+                                             sqdmulh.  */
+                                          return 109;
                                         }
                                       else
                                         {
-                                          if (((word >> 30) & 0x1) == 0)
+                                          if (((word >> 29) & 0x1) == 0)
                                             {
                                               /* 33222222222211111111110000000000
                                                  10987654321098765432109876543210
-                                                 xxxxxxxxxx110xx1xxxxxxxx1111010x
-                                                 sqrshrun.  */
-                                              return 400;
+                                                 xxxxxxxxxx0x1011xxxxxxxx111100xx
+                                                 sqrdmulh.  */
+                                              return 110;
                                             }
                                           else
                                             {
                                               /* 33222222222211111111110000000000
                                                  10987654321098765432109876543210
-                                                 xxxxxxxxxx110xx1xxxxxxxx1111011x
-                                                 sqrshrun2.  */
-                                              return 401;
+                                                 xxxxxxxxxx0x1011xxxxxxxx111101xx
+                                                 sqrdmlah.  */
+                                              return 127;
                                             }
                                         }
                                     }
                                   else
                                     {
-                                      if (((word >> 13) & 0x1) == 0)
+                                      if (((word >> 29) & 0x1) == 0)
                                         {
-                                          if (((word >> 29) & 0x1) == 0)
+                                          /* 33222222222211111111110000000000
+                                             10987654321098765432109876543210
+                                             xxxxxxxxxx1xx011xxxxxxxx111100xx
+                                             movi.  */
+                                          return 135;
+                                        }
+                                      else
+                                        {
+                                          /* 33222222222211111111110000000000
+                                             10987654321098765432109876543210
+                                             xxxxxxxxxx1xx011xxxxxxxx111101xx
+                                             mvni.  */
+                                          return 143;
+                                        }
+                                    }
+                                }
+                              else
+                                {
+                                  if (((word >> 12) & 0x1) == 0)
+                                    {
+                                      if (((word >> 29) & 0x1) == 0)
+                                        {
+                                          /* 33222222222211111111110000000000
+                                             10987654321098765432109876543210
+                                             xxxxxxxxxxxx0111xxxxxxxx111100xx
+                                             movi.  */
+                                          return 136;
+                                        }
+                                      else
+                                        {
+                                          /* 33222222222211111111110000000000
+                                             10987654321098765432109876543210
+                                             xxxxxxxxxxxx0111xxxxxxxx111101xx
+                                             movi.  */
+                                          return 144;
+                                        }
+                                    }
+                                  else
+                                    {
+                                      if (((word >> 10) & 0x1) == 0)
+                                        {
+                                          /* 33222222222211111111110000000000
+                                             10987654321098765432109876543210
+                                             xxxxxxxxxx0x1111xxxxxxxx11110xxx
+                                             sqrdmlsh.  */
+                                          return 128;
+                                        }
+                                      else
+                                        {
+                                          if (((word >> 11) & 0x1) == 0)
                                             {
-                                              if (((word >> 30) & 0x1) == 0)
+                                              if (((word >> 29) & 0x1) == 0)
                                                 {
                                                   /* 33222222222211111111110000000000
                                                      10987654321098765432109876543210
-                                                     xxxxxxxxxx1110x1xxxxxxxx1111000x
-                                                     sqrshrn.  */
-                                                  return 380;
+                                                     xxxxxxxxxx101111xxxxxxxx111100xx
+                                                     fmov.  */
+                                                  return 137;
                                                 }
                                               else
                                                 {
                                                   /* 33222222222211111111110000000000
                                                      10987654321098765432109876543210
-                                                     xxxxxxxxxx1110x1xxxxxxxx1111001x
-                                                     sqrshrn2.  */
-                                                  return 381;
+                                                     xxxxxxxxxx101111xxxxxxxx111101xx
+                                                     fmov.  */
+                                                  return 146;
                                                 }
                                             }
                                           else
                                             {
-                                              if (((word >> 30) & 0x1) == 0)
+                                              if (((word >> 29) & 0x1) == 0)
                                                 {
                                                   /* 33222222222211111111110000000000
                                                      10987654321098765432109876543210
-                                                     xxxxxxxxxx1110x1xxxxxxxx1111010x
-                                                     uqrshrn.  */
-                                                  return 404;
+                                                     xxxxxxxxxx111111xxxxxxxx111100xx
+                                                     fmov.  */
+                                                  return 138;
                                                 }
                                               else
                                                 {
                                                   /* 33222222222211111111110000000000
                                                      10987654321098765432109876543210
-                                                     xxxxxxxxxx1110x1xxxxxxxx1111011x
-                                                     uqrshrn2.  */
-                                                  return 405;
+                                                     xxxxxxxxxx111111xxxxxxxx111101xx
+                                                     fcvtzu.  */
+                                                  return 412;
                                                 }
                                             }
                                         }
-                                      else
-                                        {
-                                          if (((word >> 29) & 0x1) == 0)
-                                            {
-                                              /* 33222222222211111111110000000000
-                                                 10987654321098765432109876543210
-                                                 xxxxxxxxxx1111x1xxxxxxxx111100xx
-                                                 fmov.  */
-                                              return 138;
-                                            }
-                                          else
-                                            {
-                                              /* 33222222222211111111110000000000
-                                                 10987654321098765432109876543210
-                                                 xxxxxxxxxx1111x1xxxxxxxx111101xx
-                                                 fcvtzu.  */
-                                              return 412;
-                                            }
-                                        }
                                     }
                                 }
                             }
@@ -18743,11 +18765,13 @@ aarch64_find_next_opcode (const aarch64_opcode *opcode)
     case 403: return NULL;		/* uqshrn2 --> NULL.  */
     case 136: value = 386; break;	/* movi --> scvtf.  */
     case 386: value = 387; break;	/* scvtf --> scvtf.  */
-    case 387: return NULL;		/* scvtf --> NULL.  */
+    case 387: value = 1989; break;	/* scvtf --> sdot.  */
+    case 1989: return NULL;		/* sdot --> NULL.  */
     case 144: value = 145; break;	/* movi --> movi.  */
     case 145: value = 410; break;	/* movi --> ucvtf.  */
     case 410: value = 411; break;	/* ucvtf --> ucvtf.  */
-    case 411: return NULL;		/* ucvtf --> NULL.  */
+    case 411: value = 1988; break;	/* ucvtf --> udot.  */
+    case 1988: return NULL;		/* udot --> NULL.  */
     case 138: value = 388; break;	/* fmov --> fcvtzs.  */
     case 388: value = 389; break;	/* fcvtzs --> fcvtzs.  */
     case 389: return NULL;		/* fcvtzs --> NULL.  */
diff --git a/opcodes/aarch64-dis.c b/opcodes/aarch64-dis.c
index a860dbcb00..4fd94e8f7a 100644
--- a/opcodes/aarch64-dis.c
+++ b/opcodes/aarch64-dis.c
@@ -325,6 +325,21 @@ aarch64_ext_reglane (const aarch64_operand *self, aarch64_opnd_info *info,
 	  info->reglane.index = (unsigned) (value >> 1);
 	}
     }
+  else if (inst->opcode->iclass == dotproduct)
+    {
+      /* Need information in other operand(s) to help decoding.  */
+      info->qualifier = get_expected_qualifier (inst, info->idx);
+      switch (info->qualifier)
+	{
+	case AARCH64_OPND_QLF_S_B:
+	  /* L:H */
+	  info->reglane.index = extract_fields (code, 0, 2, FLD_H, FLD_L);
+	  info->reglane.regno &= 0x1f;
+	  break;
+	default:
+	  return 0;
+	}
+    }
   else
     {
       /* Index only for e.g. SQDMLAL <Va><d>, <Vb><n>, <Vm>.<Ts>[<index>]
diff --git a/opcodes/aarch64-tbl.h b/opcodes/aarch64-tbl.h
index a7510ff5ea..61c2582d01 100644
--- a/opcodes/aarch64-tbl.h
+++ b/opcodes/aarch64-tbl.h
@@ -1982,6 +1982,19 @@
 {                                                       \
   QLF3(X,X,NIL),                                        \
 }
+/* e.g. UDOT <Vd>.2S, <Vn>.8B, <Vm>.8B.  */
+#define QL_V3DOT	   \
+{			   \
+  QLF3(V_2S, V_8B,  V_8B), \
+  QLF3(V_4S, V_16B, V_16B),\
+}
+
+/* e.g. UDOT <Vd>.2S, <Vn>.8B, <Vm>.4B[<index>].  */
+#define QL_V2DOT	 \
+{			 \
+  QLF3(V_2S, V_8B,  S_B),\
+  QLF3(V_4S, V_16B, S_B),\
+}
 
 /* Opcode table.  */
 
@@ -2021,6 +2034,8 @@ static const aarch64_feature_set aarch64_feature_compnum =
   AARCH64_FEATURE (AARCH64_FEATURE_COMPNUM, 0);
 static const aarch64_feature_set aarch64_feature_rcpc =
   AARCH64_FEATURE (AARCH64_FEATURE_RCPC, 0);
+static const aarch64_feature_set aarch64_feature_dotprod =
+  AARCH64_FEATURE (AARCH64_FEATURE_V8_2 | AARCH64_FEATURE_DOTPROD, 0);
 
 #define CORE		&aarch64_feature_v8
 #define FP		&aarch64_feature_fp
@@ -2040,6 +2055,7 @@ static const aarch64_feature_set aarch64_feature_rcpc =
 #define FP_V8_3		&aarch64_feature_fp_v8_3
 #define COMPNUM		&aarch64_feature_compnum
 #define RCPC		&aarch64_feature_rcpc
+#define DOTPROD		&aarch64_feature_dotprod
 
 #define CORE_INSN(NAME,OPCODE,MASK,CLASS,OP,OPS,QUALS,FLAGS) \
   { NAME, OPCODE, MASK, CLASS, OP, CORE, OPS, QUALS, FLAGS, 0, NULL }
@@ -2072,6 +2088,8 @@ static const aarch64_feature_set aarch64_feature_rcpc =
   { NAME, OPCODE, MASK, CLASS, OP, COMPNUM, OPS, QUALS, FLAGS, 0, NULL }
 #define RCPC_INSN(NAME,OPCODE,MASK,CLASS,OPS,QUALS,FLAGS) \
   { NAME, OPCODE, MASK, CLASS, 0, RCPC, OPS, QUALS, FLAGS, 0, NULL }
+#define DOT_INSN(NAME,OPCODE,MASK,CLASS,OPS,QUALS,FLAGS) \
+  { NAME, OPCODE, MASK, CLASS, 0, DOTPROD, OPS, QUALS, FLAGS, 0, NULL }
 
 struct aarch64_opcode aarch64_opcode_table[] =
 {
@@ -4137,6 +4155,12 @@ struct aarch64_opcode aarch64_opcode_table[] =
   _SVE_INSN ("fmov", 0x05104000, 0xff30ffe0, sve_size_hsd, 0, OP3 (SVE_Zd, SVE_Pg4_16, FPIMM0), OP_SVE_VM_HSD, F_ALIAS | F_PSEUDO, 0),
   _SVE_INSN ("orn", 0x05000000, 0xfffc0000, sve_limm, 0, OP3 (SVE_Zd, SVE_Zd, SVE_INV_LIMM), OP_SVE_VVU_BHSD, F_ALIAS | F_PSEUDO, 1),
 
+  /* SIMD Dot Product (optional in v8.2-A).  */
+  DOT_INSN ("udot", 0x2e009400, 0xbf20fc00, dotproduct, OP3 (Vd, Vn, Vm), QL_V3DOT, F_SIZEQ),
+  DOT_INSN ("sdot", 0xe009400,  0xbf20fc00, dotproduct, OP3 (Vd, Vn, Vm), QL_V3DOT, F_SIZEQ),
+  DOT_INSN ("udot", 0x2f00e000, 0xbf00f000, dotproduct, OP3 (Vd, Vn, Em), QL_V2DOT, F_SIZEQ),
+  DOT_INSN ("sdot", 0xf00e000,  0xbf00f000, dotproduct, OP3 (Vd, Vn, Em), QL_V2DOT, F_SIZEQ),
+
   {0, 0, 0, 0, 0, 0, {}, {}, 0, 0, NULL},
 };