Akira Hatanaka 6fdcb3c2ce [ObjCARC] Do not move a release between a call and a ... retainAutoreleasedReturnValue that retains the returned value. This commit fixes a bug in ARC optimizer where it moves a release between a call and a retainAutoreleasedReturnValue, causing the returned object to be released before the retainAutoreleasedReturnValue can retain it. This commit accomplishes that by doing a lookahead and checking whether the call prevents the release from moving upwards. In the long term, we should treat the region between the retainAutoreleasedReturnValue and the call as a critical section and disallow moving anything there (possibly using operand bundles). rdar://problem/20449878 llvm-svn: 301724		2017-04-29 00:23:11 +00:00
..
ARCRuntimeEntryPoints.h	Rename AttributeSet to AttributeList	2017-03-21 16:57:19 +00:00
BlotMapVector.h	Unify XDEBUG and EXPENSIVE_CHECKS (into the latter), and add an option to the cmake build to enable them.	2016-04-29 15:22:48 +00:00
CMakeLists.txt	[CMake] NFC. Updating CMake dependency specifications	2016-11-17 04:36:50 +00:00
DependencyAnalysis.cpp	…
DependencyAnalysis.h	Make more headers self-contained.	2016-01-27 18:03:37 +00:00
LLVMBuild.txt	…
ObjCARC.cpp	[NFC] Header cleanup	2016-04-18 09:17:29 +00:00
ObjCARC.h	[ObjCARC] Do not move a release between a call and a	2017-04-29 00:23:11 +00:00
ObjCARCAPElim.cpp	Re-commit optimization bisect support (r267022) without new pass manager support.	2016-04-22 22:06:11 +00:00
ObjCARCContract.cpp	[ObjCArc] Do not dereference an invalidated iterator.	2017-04-05 03:44:09 +00:00
ObjCARCExpand.cpp	[NFC] Header cleanup	2016-04-18 09:17:29 +00:00
ObjCARCOpts.cpp	Remove redundant code. NFC.	2017-02-25 00:59:49 +00:00
ProvenanceAnalysis.cpp	…
ProvenanceAnalysis.h	…
ProvenanceAnalysisEvaluator.cpp	…
PtrState.cpp	[ObjCARC] Do not move a release between a call and a	2017-04-29 00:23:11 +00:00
PtrState.h	…