[AArch64] Add dot product support for AArch64 to binutils

[deliverable/binutils-gdb.git] / opcodes / aarch64-dis.c

diff --git a/opcodes/aarch64-dis.c b/opcodes/aarch64-dis.c
index a860dbcb003378f2717f236b72fdc60484783d72..4fd94e8f7a993d22e8d25c488f94e6dacb1bceed 100644 (file)
--- 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>]