Michael Gottesman 3f4613310d [objc-arc] Added ImpreciseAutoreleaseSet to track autorelease calls that were once autoreleaseRV instructions. ... Due to the semantics of ARC, we must be extremely conservative with autorelease calls inserted by the frontend since ARC gaurantees that said object will be in the autorelease pool after that point, an optimization invariant that the optimizer must respect. On the other hand, we are allowed significantly more flexibility with autoreleaseRV instructions. Often times though this flexibility is disrupted by early transformations which transform objc_autoreleaseRV => objc_autorelease if said instruction is no longer being used as part of an RV pair (generally due to inlining). Since we can not tell the difference in between an autorelease put into place by the frontend and one created through said ``strength reduction'' we can not perform these optimizations. The addition of this set gets around said issues by allowing us to differentiate in between said two cases. rdar://problem/13697741. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180222 91177308-0d34-0410-b5e6-96231b3b80d8		2013-04-24 22:18:18 +00:00
..
CMakeLists.txt	Extracted ObjCARCContract from ObjCARCOpts into its own file.	2013-01-29 03:03:03 +00:00
DependencyAnalysis.cpp	Kill every call to @clang.arc.use in the ARC contract phase.	2013-03-22 21:38:36 +00:00
DependencyAnalysis.h	Extracted ObjCARCContract from ObjCARCOpts into its own file.	2013-01-29 03:03:03 +00:00
LLVMBuild.txt	Added missing dashes from header declaration comment.	2013-01-29 04:53:55 +00:00
Makefile
ObjCARC.cpp	Move C++ code out of the C headers and into either C++ headers	2013-04-22 22:47:22 +00:00
ObjCARC.h	Add clang.arc.used to ModuleHasARC so ARC always runs if said call is present in a module.	2013-03-29 21:15:23 +00:00
ObjCARCAliasAnalysis.cpp	Sorted includes using utils/sort_includes.	2013-01-29 04:20:52 +00:00
ObjCARCAliasAnalysis.h	Added two missing headers from ObjCARCAliasAnalysis.h.	2013-01-29 04:09:24 +00:00
ObjCARCAPElim.cpp	Hopefully fix the Windows build failure introduced in r173769	2013-01-29 09:09:27 +00:00
ObjCARCContract.cpp	Changed isNullOrUndef => IsNullOrUndef and isNoopInstruction => IsNoopInstruction so that all helper functions are named similarly in ObjCARC.h.	2013-03-25 09:27:43 +00:00
ObjCARCExpand.cpp	Sorted includes using utils/sort_includes.	2013-01-29 04:20:52 +00:00
ObjCARCOpts.cpp	[objc-arc] Added ImpreciseAutoreleaseSet to track autorelease calls that were once autoreleaseRV instructions.	2013-04-24 22:18:18 +00:00
ObjCARCUtil.cpp	[ObjCARC Annotations] Added support for displaying the state of pointers at the bottom/top of BBs of the ARC dataflow analysis for both bottomup and topdown analyses.	2013-03-26 00:42:09 +00:00
ProvenanceAnalysis.cpp	Changed isStoredObjCPointer => IsStoredObjCPointer. No functionality change.	2013-02-12 23:35:08 +00:00
ProvenanceAnalysis.h	Fixed some whitespace/80+ violations. Also added a space after a namespace declaration.	2013-01-29 04:58:30 +00:00