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-rw-r--r--lib/Sema/SemaDecl.cpp1
-rw-r--r--test/SemaObjC/fixed-enum.m7
2 files changed, 8 insertions, 0 deletions
diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp
index 806608cf43..05f48707aa 100644
--- a/lib/Sema/SemaDecl.cpp
+++ b/lib/Sema/SemaDecl.cpp
@@ -9812,6 +9812,7 @@ void Sema::ActOnEnumBody(SourceLocation EnumLoc, SourceLocation LBraceLoc,
unsigned NewWidth;
bool NewSign;
if (!getLangOptions().CPlusPlus &&
+ !Enum->isFixed() &&
isRepresentableIntegerValue(Context, InitVal, Context.IntTy)) {
NewTy = Context.IntTy;
NewWidth = IntWidth;
diff --git a/test/SemaObjC/fixed-enum.m b/test/SemaObjC/fixed-enum.m
new file mode 100644
index 0000000000..a057dc0d37
--- /dev/null
+++ b/test/SemaObjC/fixed-enum.m
@@ -0,0 +1,7 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+// rdar://10381507
+
+typedef enum : long { Foo } IntegerEnum;
+int arr[(sizeof(typeof(Foo)) == sizeof(typeof(IntegerEnum))) - 1];
+int arr1[(sizeof(typeof(Foo)) == sizeof(typeof(long))) - 1];
+int arr2[(sizeof(typeof(IntegerEnum)) == sizeof(typeof(long))) - 1];