diff options
| -rw-r--r-- | clang/lib/Sema/SemaDeclAttr.cpp | 8 | ||||
| -rw-r--r-- | clang/test/Sema/attr-format.c | 4 |
2 files changed, 12 insertions, 0 deletions
diff --git a/clang/lib/Sema/SemaDeclAttr.cpp b/clang/lib/Sema/SemaDeclAttr.cpp index 73a34f8107e..5a7a3c31fe8 100644 --- a/clang/lib/Sema/SemaDeclAttr.cpp +++ b/clang/lib/Sema/SemaDeclAttr.cpp @@ -1115,6 +1115,7 @@ enum FormatAttrKind { NSStringFormat, StrftimeFormat, SupportedFormat, + IgnoredFormat, InvalidFormat }; @@ -1136,6 +1137,9 @@ static FormatAttrKind getFormatAttrKind(llvm::StringRef Format) { Format == "zcmn_err") return SupportedFormat; + if (Format == "gcc_tdiag") + return IgnoredFormat; + return InvalidFormat; } @@ -1171,6 +1175,10 @@ static void HandleFormatAttr(Decl *d, const AttributeList &Attr, Sema &S) { // 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(); diff --git a/clang/test/Sema/attr-format.c b/clang/test/Sema/attr-format.c index 594e590e6ba..34102c66037 100644 --- a/clang/test/Sema/attr-format.c +++ b/clang/test/Sema/attr-format.c @@ -68,3 +68,7 @@ void __attribute__((format(printf, 1, 0))) foo2(const char *fmt, va_list va) { xx_vprintf(foo(fmt), va); } + +// PR6542 +extern void gcc_format (const char *, ...) + __attribute__ ((__format__(__gcc_tdiag__, 1, 2))); |
