Index: bindings/go/llvm/dibuilder.go
===================================================================
--- bindings/go/llvm/dibuilder.go
+++ bindings/go/llvm/dibuilder.go
@@ -41,6 +41,7 @@
 )
 
 const (
+	FlagZero = 0
 	FlagPrivate = 1 << iota
 	FlagProtected
 	FlagFwdDecl
@@ -299,6 +300,7 @@
 		C.size_t(len(t.Name)),
 		C.uint64_t(t.SizeInBits),
 		C.unsigned(t.Encoding),
+		C.LLVMDIFlags(FlagZero),
 	)
 	return Metadata{C: result}
 }
Index: include/llvm-c/DebugInfo.h
===================================================================
--- include/llvm-c/DebugInfo.h
+++ include/llvm-c/DebugInfo.h
@@ -57,6 +57,8 @@
   LLVMDIFlagFixedEnum = 1 << 24,
   LLVMDIFlagThunk = 1 << 25,
   LLVMDIFlagTrivial = 1 << 26,
+  LLVMDIFlagBigEndian = 1 << 27,
+  LLVMDIFlagLittleEndian = 1 << 28,
   LLVMDIFlagIndirectVirtualBase = (1 << 2) | (1 << 5),
   LLVMDIFlagAccessibility = LLVMDIFlagPrivate | LLVMDIFlagProtected |
                             LLVMDIFlagPublic,
@@ -531,11 +533,13 @@
  * \param NameLen     Length of type name.
  * \param SizeInBits  Size of the type.
  * \param Encoding    DWARF encoding code, e.g. \c LLVMDWARFTypeEncoding_float.
+ * \param Flags       Flags to encode optional attribute like endianity
  */
 LLVMMetadataRef
 LLVMDIBuilderCreateBasicType(LLVMDIBuilderRef Builder, const char *Name,
                              size_t NameLen, uint64_t SizeInBits,
-                             LLVMDWARFTypeEncoding Encoding);
+                             LLVMDWARFTypeEncoding Encoding,
+                             LLVMDIFlags Flags);
 
 /**
  * Create debugging information entry for a pointer.
Index: lib/IR/DebugInfo.cpp
===================================================================
--- lib/IR/DebugInfo.cpp
+++ lib/IR/DebugInfo.cpp
@@ -948,9 +948,11 @@
 LLVMMetadataRef
 LLVMDIBuilderCreateBasicType(LLVMDIBuilderRef Builder, const char *Name,
                              size_t NameLen, uint64_t SizeInBits,
-                             LLVMDWARFTypeEncoding Encoding) {
+                             LLVMDWARFTypeEncoding Encoding,
+                             LLVMDIFlags Flags) {
   return wrap(unwrap(Builder)->createBasicType({Name, NameLen},
-                                               SizeInBits, Encoding));
+                                               SizeInBits, Encoding,
+                                               map_from_llvmDIFlags(Flags)));
 }
 
 LLVMMetadataRef LLVMDIBuilderCreatePointerType(
Index: tools/llvm-c-test/debuginfo.c
===================================================================
--- tools/llvm-c-test/debuginfo.c
+++ tools/llvm-c-test/debuginfo.c
@@ -68,7 +68,7 @@
                                               NULL, 0);
 
   LLVMMetadataRef Int64Ty =
-    LLVMDIBuilderCreateBasicType(DIB, "Int64", 5, 64, 0);
+    LLVMDIBuilderCreateBasicType(DIB, "Int64", 5, 64, 0, LLVMDIFlagZero);
   LLVMMetadataRef Int64TypeDef =
     LLVMDIBuilderCreateTypedef(DIB, Int64Ty, "int64_t", 7, File, 42, File);