4 Commits

Author	SHA1	Message	Date
Chris Lattner	cab02a60d2	Step #2/N of __label__ support: keep pushing LabelDecl forward, ... making them be template instantiated in a more normal way and make them handle attributes like other decls. This fixes the used/unused label handling stuff, making it use the same infrastructure as other decls. llvm-svn: 125771	2011-02-17 20:34:02 +00:00
Chris Lattner	c8e630e4db	Step #1/N of implementing support for __label__: split labels into ... LabelDecl and LabelStmt. There is a 1-1 correspondence between the two, but this simplifies a bunch of code by itself. This is because labels are the only place where we previously had references to random other statements, causing grief for AST serialization and other stuff. This does cause one regression (attr(unused) doesn't silence unused label warnings) which I'll address next. This does fix some minor bugs: 1. "The only valid attribute " diagnostic was capitalized. 2. Various diagnostics printed as ''labelname'' instead of 'labelname' 3. This reduces duplication of label checking between functions and blocks. Review appreciated, particularly for the cindex and template bits. llvm-svn: 125733	2011-02-17 07:39:24 +00:00
Argyrios Kyrtzidis	9f48354b71	Don't warn for an unused label if it has 'unused' attribute. Fixes rdar://8483139. ... llvm-svn: 114954	2010-09-28 14:54:07 +00:00
Argyrios Kyrtzidis	72664df103	Implement -Wunused-label. ... llvm-svn: 114315	2010-09-19 21:21:25 +00:00