diff --git a/gas/testsuite/gas/aarch64/illegal-sysreg-8.l b/gas/testsuite/gas/aarch64/illegal-sysreg-8.l
index 6a5f8fe567c..773e8d80f7a 100644
--- a/gas/testsuite/gas/aarch64/illegal-sysreg-8.l
+++ b/gas/testsuite/gas/aarch64/illegal-sysreg-8.l
@@ -3,6 +3,14 @@
 .*: *Info: macro .*
 .*: Error: selected processor does not support system register name 'ccsidr2_el1'
 .*: *Info: macro .*
+.*: Error: selected processor does not support system register name 'rcwmask_el1'
+.*: *Info: macro .*
+.*: Error: selected processor does not support system register name 'rcwmask_el1'
+.*: *Info: macro .*
+.*: Error: selected processor does not support system register name 'rcwsmask_el1'
+.*: *Info: macro .*
+.*: Error: selected processor does not support system register name 'rcwsmask_el1'
+.*: *Info: macro .*
 .*: Error: selected processor does not support system register name 'trfcr_el1'
 .*: *Info: macro .*
 .*: Error: selected processor does not support system register name 'trfcr_el1'
diff --git a/gas/testsuite/gas/aarch64/illegal-sysreg-8.s b/gas/testsuite/gas/aarch64/illegal-sysreg-8.s
index a1a7ae6faed..0ce61ddfe45 100644
--- a/gas/testsuite/gas/aarch64/illegal-sysreg-8.s
+++ b/gas/testsuite/gas/aarch64/illegal-sysreg-8.s
@@ -16,6 +16,8 @@
 	.arch	armv8.2-a
 
 	roreg	ccsidr2_el1
+	rwreg	rcwmask_el1
+	rwreg	rcwsmask_el1
 
 	.arch	armv8.3-a
 
diff --git a/opcodes/aarch64-opc.c b/opcodes/aarch64-opc.c
index 5a0f0e9f52e..f8d4c1a4d33 100644
--- a/opcodes/aarch64-opc.c
+++ b/opcodes/aarch64-opc.c
@@ -5037,7 +5037,7 @@ aarch64_sys_ins_reg_supported_p (const aarch64_feature_set features,
     return true;
 
   if ((reg_value == CPENC (3,0,13,0,3)
-       || CPENC (3,0,13,0,6))
+       || reg_value == CPENC (3,0,13,0,6))
       && AARCH64_CPU_HAS_FEATURE (features, THE))
     return true;
 
diff --git a/opcodes/aarch64-tbl.h b/opcodes/aarch64-tbl.h
index feea209ea30..74fd6695d81 100644
--- a/opcodes/aarch64-tbl.h
+++ b/opcodes/aarch64-tbl.h
@@ -2578,8 +2578,6 @@ static const aarch64_feature_set aarch64_feature_chk =
   AARCH64_FEATURE (CHK);
 static const aarch64_feature_set aarch64_feature_gcs =
   AARCH64_FEATURE (GCS);
-static const aarch64_feature_set aarch64_feature_the =
-  AARCH64_FEATURE (THE);
 
 #define CORE		&aarch64_feature_v8
 #define FP		&aarch64_feature_fp
@@ -2641,7 +2639,6 @@ static const aarch64_feature_set aarch64_feature_the =
 #define CSSC	  &aarch64_feature_cssc
 #define CHK	  &aarch64_feature_chk
 #define GCS	  &aarch64_feature_gcs
-#define THE	  &aarch64_feature_the
 
 #define CORE_INSN(NAME,OPCODE,MASK,CLASS,OP,OPS,QUALS,FLAGS) \
   { NAME, OPCODE, MASK, CLASS, OP, CORE, OPS, QUALS, FLAGS, 0, 0, NULL }