Michael Gottesman c59f1a814a Fixed a bug where we were tail calling objc_autorelease causing an object to not be placed into an autorelease pool. ... The reason that this occurs is that tail calling objc_autorelease eventually tail calls -[NSObject autorelease] which supports fast autorelease. This can cause us to violate the semantic gaurantees of __autoreleasing variables that assignment to an __autoreleasing variables always yields an object that is placed into the innermost autorelease pool. The fix included in this patch works by: 1. In the peephole optimization function OptimizeIndividualFunctions, always remove tail call from objc_autorelease. 2. Whenever we convert to/from an objc_autorelease, set/unset the tail call keyword as appropriate. *NOTE* I also handled the case where objc_autorelease is converted in OptimizeReturns to an autoreleaseRV which still violates the ARC semantics. I will be removing that in a later patch and I wanted to make sure that the tree is in a consistent state vis-a-vis ARC always. Additionally some test cases are provided and all tests that have tail call marked objc_autorelease keywords have been modified so that tail call has been removed. *NOTE* One test fails due to a separate bug that I am going to commit soon. Thus I marked the check line TMP: instead of CHECK: so make check does not fail. llvm-svn: 172287		2013-01-12 01:25:15 +00:00
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Analysis	Update CMakeLists for CallPrinter.cpp.	2013-01-11 17:34:05 +00:00
Archive	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
AsmParser	There was a switch fall-through in the parser for textual LLVM that caused	2013-01-07 13:32:38 +00:00
Bitcode	Revert s/Raw/getBitMask/g name change. This is possibly causing LTO test hangings.	2013-01-09 23:36:50 +00:00
CodeGen	Limit the search space in RAGreedy::tryEvict().	2013-01-12 00:57:44 +00:00
DebugInfo	[Object, DebugInfo] Make DWARFContext BE-aware.	2013-01-09 02:45:05 +00:00
ExecutionEngine	Fix bug in exception table allocation (PR13678)	2013-01-11 16:33:30 +00:00
IR	Support for half intrinsics. Pushes MMX into slower encoding path.	2013-01-11 01:45:05 +00:00
Linker	Fix a copy/paste error in the IR Linker, casting an ArrayType instead of a VectorType.	2013-01-10 10:49:36 +00:00
MC	Stop hiding the interface-exposed EatToEndOfStatement (see r172276).	2013-01-12 00:23:24 +00:00
Object	[Object][Archive] Fix name handling with bsd style long names.	2013-01-10 01:05:34 +00:00
Option	Resort the #include lines in include/... and lib/... with the	2013-01-02 10:22:59 +00:00
Support	SMDiagnostic: don't emit ranges if there are /any/ multibyte characters.	2013-01-11 02:37:55 +00:00
TableGen	TableGen: Keep track of superclass reference ranges.	2013-01-10 18:50:11 +00:00
Target	This patch tackles the problem of parsing Mips	2013-01-12 01:03:14 +00:00
Transforms	Fixed a bug where we were tail calling objc_autorelease causing an object to not be placed into an autorelease pool.	2013-01-12 01:25:15 +00:00
CMakeLists.txt	Rename VMCore directory to IR.	2013-01-02 09:10:48 +00:00
LLVMBuild.txt	Rename VMCore directory to IR.	2013-01-02 09:10:48 +00:00
Makefile	Rename VMCore directory to IR.	2013-01-02 09:10:48 +00:00