add support for FreeBSD's format(printf0,x,y) attribute; allows null format string.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78276 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaDeclAttr.cpp b/lib/Sema/SemaDeclAttr.cpp
index 239f995..3523000 100644
--- a/lib/Sema/SemaDeclAttr.cpp
+++ b/lib/Sema/SemaDeclAttr.cpp
@@ -1212,7 +1212,8 @@
default: break;
case 5: Supported = !memcmp(Format, "scanf", 5); break;
case 6: Supported = !memcmp(Format, "printf", 6); break;
- case 7: Supported = !memcmp(Format, "strfmon", 7); break;
+ case 7: Supported = !memcmp(Format, "printf0", 7) ||
+ !memcmp(Format, "strfmon", 7); break;
case 8:
Supported = (is_strftime = !memcmp(Format, "strftime", 8)) ||
(is_NSString = !memcmp(Format, "NSString", 8)) ||