Add ext_vector type code for builtins, from John Garvin!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158156 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 15 insertions, 1 deletions

diff --git a/include/clang/Basic/Builtins.def b/include/clang/Basic/Builtins.def
index 756ba23626..63e8d08642 100644
--- a/include/clang/Basic/Builtins.def
+++ b/include/clang/Basic/Builtins.def
@@ -33,7 +33,8 @@
 //  H -> SEL
 //  a -> __builtin_va_list
 //  A -> "reference" to __builtin_va_list
-//  V -> Vector, following num elements and a base type.
+//  V -> Vector, followed by the number of elements and the base type.
+//  E -> ext_vector, followed by the number of elements and the base type.
 //  X -> _Complex, followed by the base type.
 //  Y -> ptrdiff_t
 //  P -> FILE
diff --git a/lib/AST/ASTContext.cpp b/lib/AST/ASTContext.cpp
index bd68d83250..47b286233e 100644
--- a/lib/AST/ASTContext.cpp
+++ b/lib/AST/ASTContext.cpp
@@ -6413,6 +6413,19 @@ static QualType DecodeTypeFromStr(const char *&Str, const ASTContext &Context,
                                  VectorType::GenericVector);
     break;
   }
+  case 'E': {
+    char *End;
+    
+    unsigned NumElements = strtoul(Str, &End, 10);
+    assert(End != Str && "Missing vector size");
+    
+    Str = End;
+    
+    QualType ElementType = DecodeTypeFromStr(Str, Context, Error, RequiresICE,
+                                             false);
+    Type = Context.getExtVectorType(ElementType, NumElements);
+    break;    
+  }
   case 'X': {
     QualType ElementType = DecodeTypeFromStr(Str, Context, Error, RequiresICE,
                                              false);