3 Commits

Author	SHA1	Message	Date
Erik Pilkington	5a559e64a9	Add a new flag and attributes to control static destructor registration ... This commit adds the flag -fno-c++-static-destructors and the attributes [[clang::no_destroy]] and [[clang::always_destroy]]. no_destroy specifies that a specific static or thread duration variable shouldn't have it's destructor registered, and is the default in -fno-c++-static-destructors mode. always_destroy is the opposite, and is the default in -fc++-static-destructors mode. A variable whose destructor is disabled (either because of -fno-c++-static-destructors or [[clang::no_destroy]]) doesn't count as a use of the destructor, so we don't do any access checking or mark it referenced. We also don't emit -Wexit-time-destructors for these variables. rdar://21734598 Differential revision: https://reviews.llvm.org/D50994 llvm-svn: 340306	2018-08-21 17:24:06 +00:00
Stephan Tolksdorf	5604a27788	Don't emit exit-time destructor warnings for trivial explicitly defaulted dtors ... This commit also adds an additional test case for the global destructor warning. Reviewed in http://llvm-reviews.chandlerc.com/D3205 llvm-svn: 204954	2014-03-27 20:23:36 +00:00
Anders Carlsson	98766db785	Add a new warning for exit-time destructors. ... llvm-svn: 128188	2011-03-24 01:01:41 +00:00