Duncan Sands c43cee3fbb Move some shift transforms out of instcombine and into InstructionSimplify. ... While there, I noticed that the transform "undef >>a X -> undef" was wrong. For example if X is 2 then the top two bits must be equal, so the result can not be anything. I fixed this in the constant folder as well. Also, I made the transform for "X << undef" stronger: it now folds to undef always, even though X might be zero. This is in accordance with the LangRef, but I must admit that it is fairly aggressive. Also, I added "i32 X << 32 -> undef" following the LangRef and the constant folder, likewise fairly aggressive. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123417 91177308-0d34-0410-b5e6-96231b3b80d8		2011-01-14 00:37:45 +00:00
..
CMakeLists.txt	Removed a bunch of unnecessary target_link_libraries.	2010-09-28 22:39:14 +00:00
InstCombine.h	Move getOrEnforceKnownAlignment out of instcombine into Transforms/Utils.	2010-12-25 20:37:57 +00:00
InstCombineAddSub.cpp	Add a generic expansion transform: A op (B op' C) -> (A op B) op' (A op C)	2010-12-22 13:36:08 +00:00
InstCombineAndOrXor.cpp	Add a generic expansion transform: A op (B op' C) -> (A op B) op' (A op C)	2010-12-22 13:36:08 +00:00
InstCombineCalls.cpp	Teach instcombine about the rest of the SSE and SSE2 conversion	2011-01-10 07:19:37 +00:00
InstCombineCasts.cpp	Whitespace fixes. No functionality change.	2010-12-17 23:27:41 +00:00
InstCombineCompares.cpp	Remove dead variable, const-ref-ize an APInt.	2011-01-11 18:26:37 +00:00
InstCombineLoadStoreAlloca.cpp	Move getOrEnforceKnownAlignment out of instcombine into Transforms/Utils.	2010-12-25 20:37:57 +00:00
InstCombineMulDivRem.cpp	Add a generic expansion transform: A op (B op' C) -> (A op B) op' (A op C)	2010-12-22 13:36:08 +00:00
InstCombinePHI.cpp	Teach InstructionSimplify about phi nodes. I chose to have it simply	2010-11-14 13:30:18 +00:00
InstCombineSelect.cpp	Instcombine: Fix pattern where the sext did not dominate the icmp using it	2011-01-09 16:00:11 +00:00
InstCombineShifts.cpp	Move some shift transforms out of instcombine and into InstructionSimplify.	2011-01-14 00:37:45 +00:00
InstCombineSimplifyDemanded.cpp	PR5207: Change APInt methods trunc(), sext(), zext(), sextOrTrunc() and	2010-12-07 08:25:19 +00:00
InstCombineVectorOps.cpp	PR5207: Rename overloaded APInt methods set(), clear(), flip() to	2010-12-01 08:53:58 +00:00
InstCombineWorklist.h	I got tired of VISIBILITY_HIDDEN colliding with the gcc enum. Rename it	2010-05-11 20:16:09 +00:00
InstructionCombining.cpp	Add a generic expansion transform: A op (B op' C) -> (A op B) op' (A op C)	2010-12-22 13:36:08 +00:00
Makefile	make -fno-rtti the default unless a directory builds with REQUIRES_RTTI.	2010-01-24 20:43:08 +00:00