Michael Gottesman a67a20c95f Remove an optimization where we were changing an objc_autorelease into an objc_autoreleaseReturnValue. ... The semantics of ARC implies that a pointer passed into an objc_autorelease must live until some point (potentially down the stack) where an autorelease pool is popped. On the other hand, an objc_autoreleaseReturnValue just signifies that the object must live until the end of the given function at least. Thus objc_autorelease is stronger than objc_autoreleaseReturnValue in terms of the semantics of ARC* implying that performing the given strength reduction without any knowledge of how this relates to the autorelease pool pop that is further up the stack violates the semantics of ARC. *Even though objc_autoreleaseReturnValue if you know that no RV optimization will occur is more computationally expensive. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178612 91177308-0d34-0410-b5e6-96231b3b80d8		2013-04-03 02:57:24 +00:00
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Analysis	X86TTI: Add accurate costs for itofp operations, based on the actual instruction counts.	2013-04-01 10:23:49 +00:00
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CodeGen	[mips] Small update to the implementation of eh.return for Mips.	2013-04-02 23:02:07 +00:00
DebugInfo	Support and test template arguments for unions.	2013-04-02 22:55:56 +00:00
ExecutionEngine	Add support for vector data types in the LLVM interpreter.	2013-04-01 15:53:30 +00:00
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Instrumentation	[tsan] make sure memset/memcpy/memmove are not inlined in tsan mode	2013-03-28 11:21:13 +00:00
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MC	Mips direct object exception handling regression	2013-04-01 21:55:15 +00:00
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Transforms	Remove an optimization where we were changing an objc_autorelease into an objc_autoreleaseReturnValue.	2013-04-03 02:57:24 +00:00
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