(re)implement PR6542, accepting and discarding the __gcc_tdiag__
format attribute specifier.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99213 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaDeclAttr.cpp b/lib/Sema/SemaDeclAttr.cpp
index 73a34f8..5a7a3c3 100644
--- a/lib/Sema/SemaDeclAttr.cpp
+++ b/lib/Sema/SemaDeclAttr.cpp
@@ -1115,6 +1115,7 @@
NSStringFormat,
StrftimeFormat,
SupportedFormat,
+ IgnoredFormat,
InvalidFormat
};
@@ -1136,6 +1137,9 @@
Format == "zcmn_err")
return SupportedFormat;
+ if (Format == "gcc_tdiag")
+ return IgnoredFormat;
+
return InvalidFormat;
}
@@ -1171,6 +1175,10 @@
// Check for supported formats.
FormatAttrKind Kind = getFormatAttrKind(Format);
+
+ if (Kind == IgnoredFormat)
+ return;
+
if (Kind == InvalidFormat) {
S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported)
<< "format" << Attr.getParameterName()->getName();