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9 Commits

Author SHA1 Message Date
Michael Gottesman
391935a017 [objc-arc-contract] We can not move retains over instructions which can not conservatively be proven to not decrement the retain's RCIdentity. 
I also cleaned up the code to make it more understandable for mere mortals.

<rdar://problem/19853758>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229937 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-02-20 00:02:49 +00:00
Michael Gottesman
24ee447d0f [objc-arc] Add the predicate CanDecrementRefCount. 
This is different from CanAlterRefCount since CanDecrementRefCount is
attempting to prove specifically whether or not an instruction can
decrement instead of the more general question of whether it can
decrement or increment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229936 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-02-20 00:02:45 +00:00
Michael Gottesman
b2f47bdbc2 [objc-arc] Change the InstructionClass to be an enum class called ARCInstKind. 
I also renamed ObjCARCUtil.cpp -> ARCInstKind.cpp. That file only contained
items related to ARCInstKind anyways.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229905 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-02-19 19:51:32 +00:00
Craig Topper
431bdfc4c1 Repace SmallPtrSet with SmallPtrSetImpl in function arguments to avoid needing to mention the size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216158 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-08-21 05:55:13 +00:00
Craig Topper
db77b82ed5 Revert "Repace SmallPtrSet with SmallPtrSetImpl in function arguments to avoid needing to mention the size." 
Getting a weird buildbot failure that I need to investigate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215870 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-08-18 00:24:38 +00:00
Craig Topper
f06c7072c2 Repace SmallPtrSet with SmallPtrSetImpl in function arguments to avoid needing to mention the size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215868 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-08-17 23:47:00 +00:00
Benjamin Kramer
00e08fcaa0 Canonicalize header guards into a common format. 
Add header guards to files that were missing guards. Remove #endif comments
as they don't seem common in LLVM (we can easily add them back if we decide
they're useful)

Changes made by clang-tidy with minor tweaks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215558 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-08-13 16:26:38 +00:00
Michael Gottesman
023d2bbbbe [objc-arc] Changed 'mode: c++' => 'C++' at Nick Lewycky's suggestion. Also removed unnecessary mode: c++ lines from .cpp files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186026 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-10 18:49:00 +00:00
Michael Gottesman
3a57c37964 Extracted ObjCARCContract from ObjCARCOpts into its own file. 
This also required adding 2x headers Dependency Analysis.h/Provenance Analysis.h
and a .cpp file DependencyAnalysis.cpp to unentangle the dependencies inbetween
ObjCARCContract and ObjCARCOpts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173760 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-01-29 03:03:03 +00:00