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2 Commits

Author SHA1 Message Date
Akira Hatanaka
32dc79c5ef [ObjC][ARC] Do not perform code motion on precise release calls 
This fixes a bug where an object can get deallocated before reaching the
end of its full formal lifetime.

rdar://72110887
rdar://74123176
 2021-02-15 17:39:37 -08:00
Akira Hatanaka
75fbb171c3 [ObjC][ARC] Skip debug instructions when computing the insert point of 
objc_release calls

This fixes a bug where the presence of debug instructions would cause
ARC optimizer to change the order of retain and release calls.

rdar://problem/55319419

llvm-svn: 372352
 2019-09-19 20:58:51 +00:00