Shuxin Yang 7b0c94e207 Implement XOR reassociation. It is based on following rules: ... rule 1: (x | c1) ^ c2 => (x & ~c1) ^ (c1^c2), only useful when c1=c2 rule 2: (x & c1) ^ (x & c2) = (x & (c1^c2)) rule 3: (x | c1) ^ (x | c2) = (x & c3) ^ c3 where c3 = c1 ^ c2 rule 4: (x | c1) ^ (x & c2) => (x & c3) ^ c1, where c3 = ~c1 ^ c2 It reduces an application's size (in terms of # of instructions) by 8.9%. Reviwed by Pete Cooper. Thanks a lot! rdar://13212115 llvm-svn: 178409		2013-03-30 02:15:01 +00:00
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Hello	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
IPO	Move library call prototype attribute inference to functionattrs	2013-03-21 00:55:59 +00:00
InstCombine	Check if Type is a vector before calling function Type::getVectorNumElements.	2013-03-28 01:28:02 +00:00
Instrumentation	Minor simplification.	2013-03-28 22:40:08 +00:00
ObjCARC	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
Scalar	Implement XOR reassociation. It is based on following rules:	2013-03-30 02:15:01 +00:00
Utils	Add all clauses when merging the landing pads. Duplicates will be handled later on.	2013-03-22 20:31:05 +00:00
Vectorize	LoopVectorize: Invert case when we use a vector cmp value to query select cost	2013-03-14 18:54:36 +00:00
CMakeLists.txt	Extracted ObjCARC.cpp into its own library libLLVMObjCARCOpts in preparation for refactoring the ARC Optimizer.	2013-01-28 01:35:51 +00:00
LLVMBuild.txt	Extracted ObjCARC.cpp into its own library libLLVMObjCARCOpts in preparation for refactoring the ARC Optimizer.	2013-01-28 01:35:51 +00:00
Makefile	Extracted ObjCARC.cpp into its own library libLLVMObjCARCOpts in preparation for refactoring the ARC Optimizer.	2013-01-28 01:35:51 +00:00