diff --git a/llvm/lib/Target/AArch64/AArch64InstrInfo.td b/llvm/lib/Target/AArch64/AArch64InstrInfo.td
index 44ae0377260c7..d1d352dcc5f1f 100644
--- a/llvm/lib/Target/AArch64/AArch64InstrInfo.td
+++ b/llvm/lib/Target/AArch64/AArch64InstrInfo.td
@@ -67,7 +67,7 @@ def HasJS            : Predicate<"Subtarget->hasJS()">,
 def HasCCIDX         : Predicate<"Subtarget->hasCCIDX()">,
                                  AssemblerPredicateWithAll<(all_of FeatureCCIDX), "ccidx">;
 def HasComplxNum     : Predicate<"Subtarget->hasComplxNum()">,
-                                 AssemblerPredicateWithAll<(all_of FeatureComplxNum), "complxnum">;
+                                 AssemblerPredicateWithAll<(all_of FeatureComplxNum), "fcma">;
 def HasNV            : Predicate<"Subtarget->hasNV()">,
                                  AssemblerPredicateWithAll<(all_of FeatureNV), "nv">;
 def HasMPAM          : Predicate<"Subtarget->hasMPAM()">,
diff --git a/llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp b/llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
index 433cb0387c470..5ef3e2e50ec86 100644
--- a/llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
+++ b/llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
@@ -3954,6 +3954,14 @@ static const struct Extension {
     {"poe2", {AArch64::FeatureS1POE2}},
     {"tev", {AArch64::FeatureTEV}},
     {"btie", {AArch64::FeatureBTIE}},
+    {"dit", {AArch64::FeatureDIT}},
+    {"brbe", {AArch64::FeatureBRBE}},
+    {"bti", {AArch64::FeatureBranchTargetId}},
+    {"fcma", {AArch64::FeatureComplxNum}},
+    {"jscvt", {AArch64::FeatureJS}},
+    {"pauth-lr", {AArch64::FeaturePAuthLR}},
+    {"ssve-fexpa", {AArch64::FeatureSSVE_FEXPA}},
+    {"wfxt", {AArch64::FeatureWFxT}},
 };
 
 static void setRequiredFeatureString(FeatureBitset FBS, std::string &Str) {
diff --git a/llvm/test/MC/AArch64/armv8.3a-complex_missing.s b/llvm/test/MC/AArch64/armv8.3a-complex_missing.s
index 75008106575e9..b58eb27379493 100644
--- a/llvm/test/MC/AArch64/armv8.3a-complex_missing.s
+++ b/llvm/test/MC/AArch64/armv8.3a-complex_missing.s
@@ -25,79 +25,79 @@ fcmla v0.4s, v1.4s, v2.s[0], #270
 fcmla v0.4h, v1.4h, v2.h[1], #0
 fcmla v0.8h, v1.8h, v2.h[3], #0
 fcmla v0.4s, v1.4s, v2.s[1], #0
-//CHECK: {{.*}} error: instruction requires: complxnum
+//CHECK: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcmla v0.4h, v1.4h, v2.4h, #0
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcmla v0.8h, v1.8h, v2.8h, #0
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcmla v0.2s, v1.2s, v2.2s, #0
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcmla v0.4s, v1.4s, v2.4s, #0
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcmla v0.2d, v1.2d, v2.2d, #0
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcmla v0.2s, v1.2s, v2.2s, #0
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcmla v0.2s, v1.2s, v2.2s, #90
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcmla v0.2s, v1.2s, v2.2s, #180
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcmla v0.2s, v1.2s, v2.2s, #270
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcadd v0.4h, v1.4h, v2.4h, #90
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcadd v0.8h, v1.8h, v2.8h, #90
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcadd v0.2s, v1.2s, v2.2s, #90
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcadd v0.4s, v1.4s, v2.4s, #90
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcadd v0.2d, v1.2d, v2.2d, #90
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcadd v0.2s, v1.2s, v2.2s, #90
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcadd v0.2s, v1.2s, v2.2s, #270
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcmla v0.4h, v1.4h, v2.h[0], #0
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcmla v0.8h, v1.8h, v2.h[0], #0
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcmla v0.4s, v1.4s, v2.s[0], #0
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcmla v0.4s, v1.4s, v2.s[0], #90
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcmla v0.4s, v1.4s, v2.s[0], #180
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcmla v0.4s, v1.4s, v2.s[0], #270
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcmla v0.4h, v1.4h, v2.h[1], #0
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcmla v0.8h, v1.8h, v2.h[3], #0
 //CHECK-NEXT: ^
-//CHECK-NEXT: {{.*}} error: instruction requires: complxnum
+//CHECK-NEXT: {{.*}} error: instruction requires: fcma
 //CHECK-NEXT: fcmla v0.4s, v1.4s, v2.s[1], #0
 //CHECK-NEXT: ^
 
diff --git a/llvm/test/MC/AArch64/directive-arch_extension.s b/llvm/test/MC/AArch64/directive-arch_extension.s
index 3c754077572a1..d33aa24faa120 100644
--- a/llvm/test/MC/AArch64/directive-arch_extension.s
+++ b/llvm/test/MC/AArch64/directive-arch_extension.s
@@ -197,3 +197,36 @@ fmmla v1.8h, v2.16b, v3.16b
 .arch_extension f8f32mm
 fmmla v1.4s, v2.16b, v3.16b
 // CHECK: fmmla v1.4s, v2.16b, v3.16b
+
+.arch_extension dit
+msr DIT, #1
+// CHECK: msr DIT, #1
+
+.arch_extension brbe
+brb iall
+// CHECK: brb iall
+
+.arch_extension pauth-lr
+autiasppc #0
+// CHECK: autiasppc #0
+
+.arch_extension wfxt
+wfit x0
+// CHECK: wfit x0
+
+.arch armv8-a
+.arch_extension ssve-fexpa
+fexpa z0.s, z31.s
+// CHECK: fexpa z0.s, z31.s
+
+.arch_extension jscvt
+fjcvtzs w0, d0
+// CHECK: fjcvtzs w0, d0
+
+.arch_extension fcma
+fcmla v0.4s, v1.4s, v2.4s, #0
+// CHECK: fcmla v0.4s, v1.4s, v2.4s, #0
+
+.arch_extension bti
+bti c
+// CHECK: bti c