Index: clang/lib/Parse/Parser.cpp
===================================================================
--- clang/lib/Parse/Parser.cpp
+++ clang/lib/Parse/Parser.cpp
@@ -1695,6 +1695,11 @@
     break;
 
   case Sema::NC_Type: {
+    if (TryAltiVecVectorToken())
+      // vector has been found as a type id when altivec is enabled but
+      // this is followed by a declaration specifier so this is really the
+      // altivec vector token.  Leave it unannotated.
+      break;
     SourceLocation BeginLoc = NameLoc;
     if (SS.isNotEmpty())
       BeginLoc = SS.getBeginLoc();
@@ -1736,6 +1741,11 @@
     return ANK_Success;
 
   case Sema::NC_NonType:
+    if (TryAltiVecVectorToken())
+      // vector has been found as a non-type id when altivec is enabled but
+      // this is followed by a declaration specifier so this is really the
+      // altivec vector token.  Leave it unannotated.
+      break;
     Tok.setKind(tok::annot_non_type);
     setNonTypeAnnotation(Tok, Classification.getNonTypeDecl());
     Tok.setLocation(NameLoc);
Index: clang/test/Parser/altivec-non-type-vector.c
===================================================================
--- /dev/null
+++ clang/test/Parser/altivec-non-type-vector.c
@@ -0,0 +1,7 @@
+// RUN: %clang_cc1 -triple powerpc64-unknown-aix-xcoff -target-feature +altivec -fsyntax-only %s
+
+int vector();
+
+void test() {
+  vector unsigned int v = {0};
+}
Index: clang/test/Parser/altivec-template-vector.cpp
===================================================================
--- /dev/null
+++ clang/test/Parser/altivec-template-vector.cpp
@@ -0,0 +1,11 @@
+// RUN: %clang_cc1 -triple powerpc64-unknown-aix-xcoff -target-feature +altivec -fsyntax-only %s
+
+template <typename T> class vector {
+public:
+  vector(int) {}
+};
+
+void f() {
+  vector int v = {0};
+  vector<int> vi = {0};
+}
Index: clang/test/Parser/altivec-typedef-vector.c
===================================================================
--- /dev/null
+++ clang/test/Parser/altivec-typedef-vector.c
@@ -0,0 +1,7 @@
+// RUN: %clang_cc1 -triple powerpc64-unknown-aix-xcoff -target-feature +altivec -fsyntax-only %s
+
+typedef int vector;
+
+void test() {
+  vector unsigned int v = {0};
+}