aarch64: rcpc3: add support in general_constraint_met_p

Given the introduction of the new address operand types for rcpc3
instructions, this patch adds the necessary logic to teach
`general_constraint_met_p` how to proper handle these.

diff --git a/opcodes/aarch64-opc.c b/opcodes/aarch64-opc.c
index 06d74870cba95ee05fd3c467415d040a4d6f4ea6..5b76f2cfa2191fc388adf55ad174f4a1829202f3 100644 (file)
--- a/opcodes/aarch64-opc.c
+++ b/opcodes/aarch64-opc.c
@@ -2114,6 +2114,19 @@ operand_general_constraint_met_p (const aarch64_opnd_info *opnds, int idx,
              return 0;
            }
          break;
+       case rcpc3:
+         if (opnd->addr.writeback)
+           if ((type == AARCH64_OPND_RCPC3_ADDR_PREIND_WB
+                && !opnd->addr.preind)
+               || (type == AARCH64_OPND_RCPC3_ADDR_POSTIND
+                   && !opnd->addr.postind))
+             {
+               set_syntax_error (mismatch_detail, idx,
+                                 _("unexpected address writeback"));
+               return 0;
+             }
+
+         break;
        default:
          assert (opnd->addr.writeback == 0);
          break;
@@ -2493,6 +2506,33 @@ operand_general_constraint_met_p (const aarch64_opnd_info *opnds, int idx,
          modifiers = 1 << AARCH64_MOD_UXTW;
          goto sve_zz_operand;
 
+       case AARCH64_OPND_RCPC3_ADDR_OPT_PREIND_WB:
+       case AARCH64_OPND_RCPC3_ADDR_OPT_POSTIND:
+       case AARCH64_OPND_RCPC3_ADDR_PREIND_WB:
+       case AARCH64_OPND_RCPC3_ADDR_POSTIND:
+         {
+           int num_bytes = calc_ldst_datasize (opnds);
+           int abs_offset = (type == AARCH64_OPND_RCPC3_ADDR_OPT_PREIND_WB
+                             || type == AARCH64_OPND_RCPC3_ADDR_PREIND_WB)
+             ? opnd->addr.offset.imm * -1
+             : opnd->addr.offset.imm;
+           if ((int) num_bytes != abs_offset
+               && opnd->addr.offset.imm != 0)
+             {
+               set_other_error (mismatch_detail, idx,
+                                _("invalid increment amount"));
+               return 0;
+             }
+         }
+         break;
+
+       case AARCH64_OPND_RCPC3_ADDR_OFFSET:
+         if (!value_in_range_p (opnd->addr.offset.imm, -256, 255))
+           {
+             set_imm_out_of_range_error (mismatch_detail, idx, -256, 255);
+             return 0;
+           }
+
        default:
          break;
        }