5 Commits

Author	SHA1	Message	Date
Richard Smith	4f902c7ecc	P0188R1: add support for standard [[fallthrough]] attribute. This is almost ... exactly the same as clang's existing [[clang::fallthrough]] attribute, which has been updated to have the same semantics. The one significant difference is that [[fallthrough]] is ill-formed if it's not used immediately before a switch label (even when -Wimplicit-fallthrough is disabled). To support that, we now build a CFG of any function that uses a '[[fallthrough]];' statement to check. In passing, fix some bugs with our support for statement attributes -- in particular, diagnose their use on declarations, rather than asserting. llvm-svn: 262881	2016-03-08 00:32:55 +00:00
Michael Han	23214e5046	Improve C++11 attribute parsing. ... - General C++11 attributes were previously parsed and ignored. Now they are parsed and stored in AST. - Add support to parse arguments of attributes that in 'gnu' namespace. - Differentiate unknown attributes and known attributes that can't be applied to statements when emitting diagnostic. llvm-svn: 165082	2012-10-03 01:56:22 +00:00
Alexis Hunt	a0e54d453b	Handle C++11 attribute namespaces automatically. ... Now, as long as the 'Namespaces' variable is correct inside Attr.td, the generated code will correctly admit a C++11 attribute only when it has the appropriate namespace(s). llvm-svn: 158661	2012-06-18 16:13:52 +00:00
Alexis Hunt	2178f14c10	Stop referring to functions as methods in per-function fallthrough-checking. ... llvm-svn: 158545	2012-06-15 21:22:05 +00:00
Alexander Kornienko	06caf7d59f	Implementation of a "soft opt-in" option for -Wimplicit-fallthrough diagnostics: -Wimplicit-fallthrough-per-method ... llvm-svn: 157871	2012-06-02 01:01:07 +00:00