Nadav Rotem 0c8607ba6a Revert 172708. ... The optimization handles esoteric cases but adds a lot of complexity both to the X86 backend and to other backends. This optimization disables an important canonicalization of chains of SEXT nodes and makes SEXT and ZEXT asymmetrical. Disabling the canonicalization of consecutive SEXT nodes into a single node disables other DAG optimizations that assume that there is only one SEXT node. The AVX mask optimizations is one example. Additionally this optimization does not update the cost model. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172968 91177308-0d34-0410-b5e6-96231b3b80d8		2013-01-20 08:35:56 +00:00
..
CMakeLists.txt	llvm/lib: [CMake] Add explicit dependency to intrinsics_gen.	2012-06-24 13:32:01 +00:00
DAGCombiner.cpp	Revert 172708.	2013-01-20 08:35:56 +00:00
FastISel.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
FunctionLoweringInfo.cpp	Stack Alignment: throw error if we can't satisfy the minimal alignment	2013-01-10 01:10:10 +00:00
InstrEmitter.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
InstrEmitter.h	Use MachineInstrBuilder in InstrEmitter.	2012-12-20 18:08:09 +00:00
LegalizeDAG.cpp	Refactor to expose RTLIB calls to targets.	2013-01-09 13:18:15 +00:00
LegalizeFloatTypes.cpp	Refactor to expose RTLIB calls to targets.	2013-01-09 13:18:15 +00:00
LegalizeIntegerTypes.cpp	Refactor to expose RTLIB calls to targets.	2013-01-09 13:18:15 +00:00
LegalizeTypes.cpp	Refactor to expose RTLIB calls to targets.	2013-01-09 13:18:15 +00:00
LegalizeTypes.h	Refactor to expose RTLIB calls to targets.	2013-01-09 13:18:15 +00:00
LegalizeTypesGeneric.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
LegalizeVectorOps.cpp	When lowering an inreg sext first shift left, then right arithmetically.	2013-01-12 19:06:44 +00:00
LegalizeVectorTypes.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
LLVMBuild.txt	LLVMBuild: Remove trailing newline, which irked me.	2011-12-12 19:48:00 +00:00
Makefile
ResourcePriorityQueue.cpp	Change TargetLowering::getRegClassFor to take an MVT, instead of EVT.	2012-12-13 06:34:11 +00:00
ScheduleDAGFast.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
ScheduleDAGRRList.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
ScheduleDAGSDNodes.cpp	Change TargetLowering::getRepRegClassFor to take an MVT, instead of	2012-12-13 18:45:35 +00:00
ScheduleDAGSDNodes.h	Change TargetLowering::getRepRegClassFor to take an MVT, instead of	2012-12-13 18:45:35 +00:00
ScheduleDAGVLIW.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
SDNodeDbgValue.h	Sort includes for all of the .h files under the 'lib' tree. These were	2012-12-04 07:12:27 +00:00
SDNodeOrdering.h	Mark unimplemented copy constructors and copy assignment operators as LLVM_DELETED_FUNCTION.	2012-09-18 02:01:41 +00:00
SelectionDAG.cpp	Revert 172708.	2013-01-20 08:35:56 +00:00
SelectionDAGBuilder.cpp	Remove unused parameter. Also use the AttributeSet query methods instead of the Attribute query methods.	2013-01-18 21:50:24 +00:00
SelectionDAGBuilder.h	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
SelectionDAGDumper.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
SelectionDAGISel.cpp	Move TargetTransformInfo to live under the Analysis library. This no	2013-01-07 03:08:10 +00:00
SelectionDAGPrinter.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
TargetLowering.cpp	Use AttributeSet accessor methods instead of Attribute accessor methods.	2013-01-18 21:53:16 +00:00
TargetSelectionDAGInfo.cpp	Move TargetData to DataLayout.	2012-10-08 16:38:25 +00:00