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teak-llvm/llvm/lib/CodeGen/SelectionDAG
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Andrea Di Biagio f99dd64f0a [X86] Add target combine rules for horizontal add/sub. 
This patch adds new target specific combine rules to identify horizontal
add/sub idioms from BUILD_VECTOR dag nodes.

This patch also teaches the DAGCombiner how to canonicalize sequences of
insert_vector_elt dag nodes according to the following rule:

  (insert_vector_elt (insert_vector_elt A, I0), I1) ->
    (insert_vecto_elt (insert_vector_elt A, I1), I0)

This new canonicalization rule only triggers if the inner insert_vector
dag node has exactly one use; also, both indices must be known constants,
and I1 < I0.
This last rule made it possible to write a simpler algorithm to identify
horizontal add/sub patterns because now we don't have to worry about the
ordering of insert_vector_elt dag nodes.

llvm-svn: 210477
2014-06-09 16:54:41 +00:00
..
CMakeLists.txt llvm/lib: [CMake] Add explicit dependency to intrinsics_gen. 2012-06-24 13:32:01 +00:00
DAGCombiner.cpp [X86] Add target combine rules for horizontal add/sub. 2014-06-09 16:54:41 +00:00
FastISel.cpp [Modules] Remove potential ODR violations by sinking the DEBUG_TYPE 2014-04-22 02:02:50 +00:00
FunctionLoweringInfo.cpp [Modules] Remove potential ODR violations by sinking the DEBUG_TYPE 2014-04-22 02:02:50 +00:00
InstrEmitter.cpp This reapplies r207235 with an additional bugfixes caught by the msan 2014-04-25 20:49:25 +00:00
InstrEmitter.h Revert "Give internal classes hidden visibility." 2013-09-11 18:05:11 +00:00
LegalizeDAG.cpp Fix wrong setcc result type when legalizing uaddo/usubo 2014-05-28 20:51:42 +00:00
LegalizeFloatTypes.cpp [Modules] Remove potential ODR violations by sinking the DEBUG_TYPE 2014-04-22 02:02:50 +00:00
LegalizeIntegerTypes.cpp Legalizer: Make bswap promotion safe for vectors. 2014-05-20 09:42:31 +00:00
LegalizeTypes.cpp Target: remove old constructors for CallLoweringInfo 2014-05-17 21:50:17 +00:00
LegalizeTypes.h [Modules] Sink the DEBUG_TYPE macro out of LegalizeTypes.h and into the 2014-04-21 19:43:07 +00:00
LegalizeTypesGeneric.cpp Use makeArrayRef insted of calling ArrayRef<T> constructor directly. I introduced most of these recently. 2014-04-30 07:17:30 +00:00
LegalizeVectorOps.cpp SDAG: Legalize vector BSWAP into a shuffle if the shuffle is legal but the bswap not. 2014-05-19 13:12:38 +00:00
LegalizeVectorTypes.cpp Use makeArrayRef insted of calling ArrayRef<T> constructor directly. I introduced most of these recently. 2014-04-30 07:17:30 +00:00
LLVMBuild.txt
Makefile
ResourcePriorityQueue.cpp [Modules] Remove potential ODR violations by sinking the DEBUG_TYPE 2014-04-22 02:02:50 +00:00
ScheduleDAGFast.cpp [Modules] Remove potential ODR violations by sinking the DEBUG_TYPE 2014-04-22 02:02:50 +00:00
ScheduleDAGRRList.cpp [C++11] Add 'override' keywords and remove 'virtual'. Additionally add 'final' and leave 'virtual' on some methods that are marked virtual without overriding anything and have no obvious overrides themselves. 2014-04-29 07:58:41 +00:00
ScheduleDAGSDNodes.cpp Convert SelectionDAG::MorphNodeTo to use ArrayRef. 2014-04-27 19:21:16 +00:00
ScheduleDAGSDNodes.h [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 2014-04-16 04:21:27 +00:00
ScheduleDAGVLIW.cpp [Modules] Remove potential ODR violations by sinking the DEBUG_TYPE 2014-04-22 02:02:50 +00:00
SDNodeDbgValue.h This reapplies r207235 with an additional bugfixes caught by the msan 2014-04-25 20:49:25 +00:00
SelectionDAG.cpp [DAG] Expose NoSignedWrap, NoUnsignedWrap and Exact flags to SelectionDAG. 2014-06-09 12:32:53 +00:00
SelectionDAGBuilder.cpp [DAG] Expose NoSignedWrap, NoUnsignedWrap and Exact flags to SelectionDAG. 2014-06-09 12:32:53 +00:00
SelectionDAGBuilder.h This reapplies r207235 with an additional bugfixes caught by the msan 2014-04-25 20:49:25 +00:00
SelectionDAGDumper.cpp Implememting named register intrinsics 2014-05-06 16:51:25 +00:00
SelectionDAGISel.cpp Rename ComputeMaskedBits to computeKnownBits. "Masked" has been 2014-05-14 21:14:37 +00:00
SelectionDAGPrinter.cpp [Modules] Make Support/Debug.h modular. This requires it to not change 2014-04-21 22:55:11 +00:00
TargetLowering.cpp [DAG] Expose NoSignedWrap, NoUnsignedWrap and Exact flags to SelectionDAG. 2014-06-09 12:32:53 +00:00
TargetSelectionDAGInfo.cpp Have TargetSelectionDAGInfo take a DataLayout initializer rather than 2014-06-06 19:04:48 +00:00