Philip Reames 91a083c57f Carry facts about nullness and undef across GC relocation ... This change implements four basic optimizations: If a relocated value isn't used, it doesn't need to be relocated. If the value being relocated is null, relocation doesn't change that. (Technically, this might be collector specific. I don't know of one which it doesn't work for though.) If the value being relocated is undef, the relocation is meaningless. If the value being relocated was known nonnull, the relocated pointer also isn't null. (Since it points to the same source language object.) I outlined other planned work in comments. Differential Revision: http://reviews.llvm.org/D6600 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224968 91177308-0d34-0410-b5e6-96231b3b80d8		2014-12-29 23:27:30 +00:00
..
Analysis	ValueTracking: Small cleanup in ComputeNumSignBits	2014-12-26 09:20:17 +00:00
AsmParser	IR: Make metadata typeless in assembly	2014-12-15 19:07:53 +00:00
Bitcode	Fix Visual C++ error "'llvm::make_unique' : ambiguous call to overloaded function".	2014-12-18 10:03:35 +00:00
CodeGen	Refactor duplicated code.	2014-12-29 15:18:31 +00:00
DebugInfo	[DebugInfo] Move all DWARF headers to the public include directory.	2014-12-19 18:26:33 +00:00
ExecutionEngine	[C API] Expose LLVMGetGlobalValueAddress and LLVMGetFunctionAddress.	2014-12-22 18:53:11 +00:00
IR	Masked Load/Store - Changed the order of parameters in intrinsics.	2014-12-25 07:49:20 +00:00
IRReader	Remove unused variable. NFC.	2014-11-06 23:16:57 +00:00
LineEditor
Linker	Finish removing DestroySource.	2014-12-23 19:16:45 +00:00
LTO	LTO: Lazy-load LTOModule in local contexts	2014-12-17 22:05:42 +00:00
MC	Refactor duplicated code.	2014-12-29 15:18:31 +00:00
Object	Add printing the LC_THREAD load commands with llvm-objdump’s -private-headers.	2014-12-23 22:56:39 +00:00
Option	Add an overload of getLastArgNoClaim taking two OptSpecifiers.	2014-09-12 19:42:53 +00:00
ProfileData	llvm-cov: Sink some reporting logic into CoverageMapping	2014-11-14 01:50:32 +00:00
Support	Remove unnecessary StringRef->std::string conversion.	2014-12-29 20:59:02 +00:00
TableGen	Clean up static analyzer warnings.	2014-12-12 21:48:03 +00:00
Target	[Hexagon] Adding allocframe, post-increment circular immediate stores, post-increment circular register stores, and bit reversed post-increment stores.	2014-12-29 21:33:45 +00:00
Transforms	Carry facts about nullness and undef across GC relocation	2014-12-29 23:27:30 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile