Microsoft enum extensions. 2 things will change on -fms-extensions:

1. enum underlying type is int by default.
2. Error "enumerator value is not representable in the underlying type"is a ExtWarning

llvm-svn: 116704

2 files changed, 22 insertions, 1 deletions

diff --git a/clang/test/Sema/MicrosoftExtensions.c b/clang/test/Sema/MicrosoftExtensions.c
index 96c5639810b..47071a383d6 100644
--- a/clang/test/Sema/MicrosoftExtensions.c
+++ b/clang/test/Sema/MicrosoftExtensions.c
@@ -19,3 +19,15 @@ struct D {
    int l;
    int D[];
 };
+
+
+enum ENUM1; // expected-warning {{forward references to 'enum' types are a Microsoft extension}}    
+enum ENUM1 var1 = 3;
+enum ENUM1* var2 = 0;
+
+
+enum ENUM2 {
+	ENUM2_a = (enum ENUM2) 4,
+	ENUM2_b = 0x9FFFFFFF, // expected-warning {{enumerator value is not representable in the underlying type 'int'}}
+	ENUM2_c = 0x100000000 // expected-warning {{enumerator value is not representable in the underlying type 'int'}}
+};
diff --git a/clang/test/SemaCXX/MicrosoftExtensions.cpp b/clang/test/SemaCXX/MicrosoftExtensions.cpp
index 7cc1675f2e7..cfb27bcf21c 100644
--- a/clang/test/SemaCXX/MicrosoftExtensions.cpp
+++ b/clang/test/SemaCXX/MicrosoftExtensions.cpp
@@ -87,4 +87,13 @@ void m1() {
 
 //MSVC allows forward enum declaration
 enum ENUM; // expected-warning {{forward references to 'enum' types are a Microsoft extension}}
-ENUM *var;     
+ENUM *var = 0;     
+ENUM var2 = (ENUM)3;
+enum ENUM1* var3 = 0;// expected-warning {{forward references to 'enum' types are a Microsoft extension}}
+
+
+enum ENUM2 {
+	ENUM2_a = (enum ENUM2) 4,
+	ENUM2_b = 0x9FFFFFFF, // expected-warning {{enumerator value is not representable in the underlying type 'int'}}
+	ENUM2_c = 0x100000000 // expected-warning {{enumerator value is not representable in the underlying type 'int'}}
+};