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Hans Wennborg authored
------------------------------------------------------------------------ r295150 | ahatanak | 2017-02-14 21:15:28 -0800 (Tue, 14 Feb 2017) | 13 lines [Sema] Disallow returning a __block variable via a move. r274291 made changes to prefer calling a move constructor to calling a copy constructor when returning from a function. This caused programs to crash when a __block variable in the heap was moved out and used later. This commit fixes the bug by disallowing moving out of __block variables implicitly. rdar://problem/28181080 Differential Revision: https://reviews.llvm.org/D29908 ------------------------------------------------------------------------ git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_40@295234 91177308-0d34-0410-b5e6-96231b3b80d8
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