David Majnemer 024d943bca Reorders two transforms that collide with each other ... One performs: (X == 13 | X == 14) -> X-13 <u 2 The other: (A == C1 || A == C2) -> (A & ~(C1 ^ C2)) == C1 The problem is that there are certain values of C1 and C2 that trigger both transforms but the first one blocks out the second, this generates suboptimal code. Reordering the transforms should be better in every case and allows us to do interesting stuff like turn: %shr = lshr i32 %X, 4 %and = and i32 %shr, 15 %add = add i32 %and, -14 %tobool = icmp ne i32 %add, 0 into: %and = and i32 %X, 240 %tobool = icmp ne i32 %and, 224 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179493 91177308-0d34-0410-b5e6-96231b3b80d8		2013-04-14 21:15:43 +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
InstCombine	Reorders two transforms that collide with each other	2013-04-14 21:15:43 +00:00
Instrumentation	[ASan] Allow disabling init-order checks for globals by source file name.	2013-04-11 13:20:00 +00:00
IPO	GlobalDCE: Fix an oversight in my last commit that could lead to crashes.	2013-04-13 16:11:14 +00:00
ObjCARC	Fix some comment typos.	2013-04-09 22:15:51 +00:00
Scalar	Redo the fix Benjamin Kramer committed in r178793 about iterator invalidation in Reassociate.	2013-04-08 22:00:43 +00:00
Utils	Change CloneFunctionInto to always clone Argument attributes induvidually,	2013-04-10 10:37:38 +00:00
Vectorize	Miscellaneous cleanups for VecUtils.h	2013-04-14 09:33:08 +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