diff --git a/clang/include/clang/Basic/AArch64SVEACLETypes.def b/clang/include/clang/Basic/AArch64SVEACLETypes.def
--- a/clang/include/clang/Basic/AArch64SVEACLETypes.def
+++ b/clang/include/clang/Basic/AArch64SVEACLETypes.def
@@ -124,6 +124,8 @@
 SVE_VECTOR_TYPE("__clang_svbfloat16x4_t", "svbfloat16x4_t", SveBFloat16x4, SveBFloat16x4Ty, 32, 16, true, false, true)
 
 SVE_PREDICATE_TYPE("__SVBool_t", "__SVBool_t", SveBool, SveBoolTy, 16)
+SVE_PREDICATE_TYPE("__clang_svboolx2_t", "svboolx2_t", SveBoolx2, SveBoolx2Ty, 32)
+SVE_PREDICATE_TYPE("__clang_svboolx4_t", "svboolx4_t", SveBoolx4, SveBoolx4Ty, 64)
 
 #undef SVE_VECTOR_TYPE
 #undef SVE_PREDICATE_TYPE
diff --git a/clang/lib/AST/ASTContext.cpp b/clang/lib/AST/ASTContext.cpp
--- a/clang/lib/AST/ASTContext.cpp
+++ b/clang/lib/AST/ASTContext.cpp
@@ -4036,6 +4036,10 @@
     return SVE_INT_ELTTY(64, 2, false, 4);
   case BuiltinType::SveBool:
     return SVE_ELTTY(BoolTy, 16, 1);
+  case BuiltinType::SveBoolx2:
+    return SVE_ELTTY(BoolTy, 16, 2);
+  case BuiltinType::SveBoolx4:
+    return SVE_ELTTY(BoolTy, 16, 4);
   case BuiltinType::SveFloat16:
     return SVE_ELTTY(HalfTy, 8, 1);
   case BuiltinType::SveFloat16x2:
diff --git a/clang/lib/AST/Type.cpp b/clang/lib/AST/Type.cpp
--- a/clang/lib/AST/Type.cpp
+++ b/clang/lib/AST/Type.cpp
@@ -2401,6 +2401,8 @@
     case BuiltinType::SveFloat64:
     case BuiltinType::SveBFloat16:
     case BuiltinType::SveBool:
+    case BuiltinType::SveBoolx2:
+    case BuiltinType::SveBoolx4:
       return true;
     default:
       return false;
diff --git a/clang/lib/CodeGen/CodeGenTypes.cpp b/clang/lib/CodeGen/CodeGenTypes.cpp
--- a/clang/lib/CodeGen/CodeGenTypes.cpp
+++ b/clang/lib/CodeGen/CodeGenTypes.cpp
@@ -596,6 +596,8 @@
     case BuiltinType::SveInt64x4:
     case BuiltinType::SveUint64x4:
     case BuiltinType::SveBool:
+    case BuiltinType::SveBoolx2:
+    case BuiltinType::SveBoolx4:
     case BuiltinType::SveFloat16:
     case BuiltinType::SveFloat16x2:
     case BuiltinType::SveFloat16x3:
diff --git a/clang/test/CodeGen/svboolx2_t.cpp b/clang/test/CodeGen/svboolx2_t.cpp
new file mode 100644
--- /dev/null
+++ b/clang/test/CodeGen/svboolx2_t.cpp
@@ -0,0 +1,31 @@
+// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
+// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sve -target-feature +bf16 -S -emit-llvm -o - %s | FileCheck %s
+
+// CHECK-LABEL: @_Z3foo10svboolx2_t(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[ARG_ADDR:%.*]] = alloca <vscale x 32 x i1>, align 2
+// CHECK-NEXT:    store <vscale x 32 x i1> [[ARG:%.*]], ptr [[ARG_ADDR]], align 2
+// CHECK-NEXT:    [[TMP0:%.*]] = load <vscale x 32 x i1>, ptr [[ARG_ADDR]], align 2
+// CHECK-NEXT:    ret <vscale x 32 x i1> [[TMP0]]
+//
+__clang_svboolx2_t foo(__clang_svboolx2_t arg) { return arg; }
+
+__clang_svboolx2_t bar();
+// CHECK-LABEL: @_Z4foo2v(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[CALL:%.*]] = call <vscale x 32 x i1> @_Z3barv()
+// CHECK-NEXT:    ret <vscale x 32 x i1> [[CALL]]
+//
+__clang_svboolx2_t foo2() { return bar(); }
+
+__clang_svboolx2_t bar2(__clang_svboolx2_t);
+// CHECK-LABEL: @_Z4foo310svboolx2_t(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[ARG_ADDR:%.*]] = alloca <vscale x 32 x i1>, align 2
+// CHECK-NEXT:    store <vscale x 32 x i1> [[ARG:%.*]], ptr [[ARG_ADDR]], align 2
+// CHECK-NEXT:    [[TMP0:%.*]] = load <vscale x 32 x i1>, ptr [[ARG_ADDR]], align 2
+// CHECK-NEXT:    [[CALL:%.*]] = call <vscale x 32 x i1> @_Z4bar210svboolx2_t(<vscale x 32 x i1> [[TMP0]])
+// CHECK-NEXT:    ret <vscale x 32 x i1> [[CALL]]
+//
+__clang_svboolx2_t foo3(__clang_svboolx2_t arg) { return bar2(arg); }
+
diff --git a/clang/test/CodeGen/svboolx4_t.cpp b/clang/test/CodeGen/svboolx4_t.cpp
new file mode 100644
--- /dev/null
+++ b/clang/test/CodeGen/svboolx4_t.cpp
@@ -0,0 +1,31 @@
+// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
+// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sve -target-feature +bf16 -S -emit-llvm -o - %s | FileCheck %s
+
+// CHECK-LABEL: @_Z3foo10svboolx4_t(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[ARG_ADDR:%.*]] = alloca <vscale x 64 x i1>, align 2
+// CHECK-NEXT:    store <vscale x 64 x i1> [[ARG:%.*]], ptr [[ARG_ADDR]], align 2
+// CHECK-NEXT:    [[TMP0:%.*]] = load <vscale x 64 x i1>, ptr [[ARG_ADDR]], align 2
+// CHECK-NEXT:    ret <vscale x 64 x i1> [[TMP0]]
+//
+__clang_svboolx4_t foo(__clang_svboolx4_t arg) { return arg; }
+
+__clang_svboolx4_t bar();
+// CHECK-LABEL: @_Z4foo2v(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[CALL:%.*]] = call <vscale x 64 x i1> @_Z3barv()
+// CHECK-NEXT:    ret <vscale x 64 x i1> [[CALL]]
+//
+__clang_svboolx4_t foo2() { return bar(); }
+
+__clang_svboolx4_t bar2(__clang_svboolx4_t);
+// CHECK-LABEL: @_Z4foo310svboolx4_t(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[ARG_ADDR:%.*]] = alloca <vscale x 64 x i1>, align 2
+// CHECK-NEXT:    store <vscale x 64 x i1> [[ARG:%.*]], ptr [[ARG_ADDR]], align 2
+// CHECK-NEXT:    [[TMP0:%.*]] = load <vscale x 64 x i1>, ptr [[ARG_ADDR]], align 2
+// CHECK-NEXT:    [[CALL:%.*]] = call <vscale x 64 x i1> @_Z4bar210svboolx4_t(<vscale x 64 x i1> [[TMP0]])
+// CHECK-NEXT:    ret <vscale x 64 x i1> [[CALL]]
+//
+__clang_svboolx4_t foo3(__clang_svboolx4_t arg) { return bar2(arg); }
+
diff --git a/clang/test/CodeGenCXX/aarch64-mangle-sve-vectors.cpp b/clang/test/CodeGenCXX/aarch64-mangle-sve-vectors.cpp
--- a/clang/test/CodeGenCXX/aarch64-mangle-sve-vectors.cpp
+++ b/clang/test/CodeGenCXX/aarch64-mangle-sve-vectors.cpp
@@ -106,3 +106,7 @@
 void f47(S<__clang_svbfloat16x3_t>) {}
 // CHECK: _Z3f481SI14svbfloat16x4_tE
 void f48(S<__clang_svbfloat16x4_t>) {}
+// CHECK: _Z3f491SI10svboolx2_tE
+void f49(S<__clang_svboolx2_t>) {}
+// CHECK: _Z3f501SI10svboolx4_tE
+void f50(S<__clang_svboolx4_t>) {}
diff --git a/clang/utils/TableGen/SveEmitter.cpp b/clang/utils/TableGen/SveEmitter.cpp
--- a/clang/utils/TableGen/SveEmitter.cpp
+++ b/clang/utils/TableGen/SveEmitter.cpp
@@ -1140,7 +1140,9 @@
   OS << "typedef __clang_svfloat16x4_t svfloat16x4_t;\n";
   OS << "typedef __clang_svfloat32x4_t svfloat32x4_t;\n";
   OS << "typedef __clang_svfloat64x4_t svfloat64x4_t;\n";
-  OS << "typedef __SVBool_t  svbool_t;\n\n";
+  OS << "typedef __SVBool_t  svbool_t;\n";
+  OS << "typedef __clang_svboolx2_t  svboolx2_t;\n";
+  OS << "typedef __clang_svboolx4_t  svboolx4_t;\n\n";
 
   OS << "typedef __clang_svbfloat16x2_t svbfloat16x2_t;\n";
   OS << "typedef __clang_svbfloat16x3_t svbfloat16x3_t;\n";