[X86] Rename DEFAULT_FN_ATTR macro to __DEFAULT_FN_ATTR

llvm-svn: 241065
diff --git a/clang/lib/Headers/rdseedintrin.h b/clang/lib/Headers/rdseedintrin.h
index ac9ec4f..421f4ea 100644
--- a/clang/lib/Headers/rdseedintrin.h
+++ b/clang/lib/Headers/rdseedintrin.h
@@ -29,28 +29,28 @@
 #define __RDSEEDINTRIN_H
 
 /* Define the default attributes for the functions in this file. */
-#define DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("rdseed")))
+#define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("rdseed")))
 
-static __inline__ int DEFAULT_FN_ATTRS
+static __inline__ int __DEFAULT_FN_ATTRS
 _rdseed16_step(unsigned short *__p)
 {
   return __builtin_ia32_rdseed16_step(__p);
 }
 
-static __inline__ int DEFAULT_FN_ATTRS
+static __inline__ int __DEFAULT_FN_ATTRS
 _rdseed32_step(unsigned int *__p)
 {
   return __builtin_ia32_rdseed32_step(__p);
 }
 
 #ifdef __x86_64__
-static __inline__ int DEFAULT_FN_ATTRS
+static __inline__ int __DEFAULT_FN_ATTRS
 _rdseed64_step(unsigned long long *__p)
 {
   return __builtin_ia32_rdseed64_step(__p);
 }
 #endif
 
-#undef DEFAULT_FN_ATTRS
+#undef __DEFAULT_FN_ATTRS
 
 #endif /* __RDSEEDINTRIN_H */