Index: bindings/python/clang/cindex.py
===================================================================
--- bindings/python/clang/cindex.py
+++ bindings/python/clang/cindex.py
@@ -2121,6 +2121,8 @@
 TypeKind.OCLQUEUE = TypeKind(159)
 TypeKind.OCLRESERVEID = TypeKind(160)
 
+TypeKind.EXTVECTOR = TypeKind(176)
+
 class RefQualifierKind(BaseEnumeration):
     """Describes a specific ref-qualifier of a type."""
 
Index: include/clang-c/Index.h
===================================================================
--- include/clang-c/Index.h
+++ include/clang-c/Index.h
@@ -32,7 +32,7 @@
  * compatible, thus CINDEX_VERSION_MAJOR is expected to remain stable.
  */
 #define CINDEX_VERSION_MAJOR 0
-#define CINDEX_VERSION_MINOR 54
+#define CINDEX_VERSION_MINOR 55
 
 #define CINDEX_VERSION_ENCODE(major, minor) ( \
       ((major) * 10000)                       \
@@ -3315,7 +3315,9 @@
   CXType_OCLIntelSubgroupAVCImeResultDualRefStreamout = 173,
   CXType_OCLIntelSubgroupAVCImeSingleRefStreamin = 174,
 
-  CXType_OCLIntelSubgroupAVCImeDualRefStreamin = 175
+  CXType_OCLIntelSubgroupAVCImeDualRefStreamin = 175,
+
+  CXType_ExtVector = 176
 };
 
 /**
Index: test/Index/opencl-types.cl
===================================================================
--- test/Index/opencl-types.cl
+++ test/Index/opencl-types.cl
@@ -17,11 +17,11 @@
 }
 
 // CHECK: VarDecl=scalarHalf:11:8 (Definition){{( \(invalid\))?}} [type=half] [typekind=Half] [isPOD=1]
-// CHECK: VarDecl=vectorHalf:12:9 (Definition) [type=half4] [typekind=Typedef] [canonicaltype=half __attribute__((ext_vector_type(4)))] [canonicaltypekind=Unexposed] [isPOD=1]
+// CHECK: VarDecl=vectorHalf:12:9 (Definition) [type=half4] [typekind=Typedef] [canonicaltype=half __attribute__((ext_vector_type(4)))] [canonicaltypekind=ExtVector] [isPOD=1]
 // CHECK: VarDecl=scalarFloat:13:9 (Definition) [type=float] [typekind=Float] [isPOD=1]
-// CHECK: VarDecl=vectorFloat:14:10 (Definition) [type=float4] [typekind=Typedef] [canonicaltype=float __attribute__((ext_vector_type(4)))] [canonicaltypekind=Unexposed] [isPOD=1]
+// CHECK: VarDecl=vectorFloat:14:10 (Definition) [type=float4] [typekind=Typedef] [canonicaltype=float __attribute__((ext_vector_type(4)))] [canonicaltypekind=ExtVector] [isPOD=1]
 // CHECK: VarDecl=scalarDouble:15:10 (Definition){{( \(invalid\))?}} [type=double] [typekind=Double] [isPOD=1]
-// CHECK: VarDecl=vectorDouble:16:11 (Definition){{( \(invalid\))?}} [type=double4] [typekind=Typedef] [canonicaltype=double __attribute__((ext_vector_type(4)))] [canonicaltypekind=Unexposed] [isPOD=1]
+// CHECK: VarDecl=vectorDouble:16:11 (Definition){{( \(invalid\))?}} [type=double4] [typekind=Typedef] [canonicaltype=double __attribute__((ext_vector_type(4)))] [canonicaltypekind=ExtVector] [isPOD=1]
 
 #pragma OPENCL EXTENSION cl_khr_gl_msaa_sharing : enable
 
Index: tools/libclang/CXType.cpp
===================================================================
--- tools/libclang/CXType.cpp
+++ tools/libclang/CXType.cpp
@@ -109,6 +109,7 @@
     TKCASE(VariableArray);
     TKCASE(DependentSizedArray);
     TKCASE(Vector);
+    TKCASE(ExtVector);
     TKCASE(MemberPointer);
     TKCASE(Auto);
     TKCASE(Elaborated);
@@ -600,6 +601,7 @@
     TKIND(VariableArray);
     TKIND(DependentSizedArray);
     TKIND(Vector);
+    TKIND(ExtVector);
     TKIND(MemberPointer);
     TKIND(Auto);
     TKIND(Elaborated);
@@ -804,6 +806,9 @@
     case Type::Vector:
       ET = cast<VectorType> (TP)->getElementType();
       break;
+    case Type::ExtVector:
+      ET = cast<ExtVectorType>(TP)->getElementType();
+      break;
     case Type::Complex:
       ET = cast<ComplexType> (TP)->getElementType();
       break;
@@ -827,6 +832,9 @@
     case Type::Vector:
       result = cast<VectorType> (TP)->getNumElements();
       break;
+    case Type::ExtVector:
+      result = cast<ExtVectorType>(TP)->getNumElements();
+      break;
     default:
       break;
     }