Akira Hatanaka 1115fbdce4 [ObjCArc] Do not dereference an invalidated iterator.
Fix a bug in ARC contract pass where an iterator that pointed to a
deleted instruction was dereferenced.

It appears that tryToContractReleaseIntoStoreStrong was incorrectly
assuming that a call to objc_retain would not immediately follow a call
to objc_release.

rdar://problem/25276306



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299507 91177308-0d34-0410-b5e6-96231b3b80d8
2017-04-05 03:44:09 +00:00
2017-03-21 04:03:24 +00:00
2017-04-04 00:56:34 +00:00
2014-03-02 13:08:46 +00:00
2016-01-26 21:29:08 +00:00
2017-01-12 18:02:42 +00:00
2017-03-06 20:45:33 +00:00

Low Level Virtual Machine (LLVM)
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