]> granicus.if.org Git - clang/commit
Merging r295150:
authorHans Wennborg <hans@hanshq.net>
Wed, 15 Feb 2017 20:51:59 +0000 (20:51 +0000)
committerHans Wennborg <hans@hanshq.net>
Wed, 15 Feb 2017 20:51:59 +0000 (20:51 +0000)
commit86ced61713098b13d58f24f4dfd0806dddaeb20c
treea39453c98d7700e8c9b460b06b8cf46c79dc7e6a
parent155bc5fa0d90f001ac6d4242b72fddd9d6017f71
Merging r295150:
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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

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git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_40@295234 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Sema/SemaStmt.cpp
test/SemaObjCXX/blocks.mm