Sanjay Patel 3c3cd10928 merge consecutive stores of extracted vector elements ... Add a path to DAGCombiner::MergeConsecutiveStores() to combine multiple scalar stores when the store operands are extracted vector elements. This is a partial fix for PR21711 ( http://llvm.org/bugs/show_bug.cgi?id=21711 ). For the new test case, codegen improves from: vmovss %xmm0, (%rdi) vextractps $1, %xmm0, 4(%rdi) vextractps $2, %xmm0, 8(%rdi) vextractps $3, %xmm0, 12(%rdi) vextractf128 $1, %ymm0, %xmm0 vmovss %xmm0, 16(%rdi) vextractps $1, %xmm0, 20(%rdi) vextractps $2, %xmm0, 24(%rdi) vextractps $3, %xmm0, 28(%rdi) vzeroupper retq To: vmovups %ymm0, (%rdi) vzeroupper retq Patch reviewed by Nadav Rotem. Differential Revision: http://reviews.llvm.org/D6698 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224611 91177308-0d34-0410-b5e6-96231b3b80d8		2014-12-19 20:23:41 +00:00
..
CMakeLists.txt
DAGCombiner.cpp	merge consecutive stores of extracted vector elements	2014-12-19 20:23:41 +00:00
FastISel.cpp
FunctionLoweringInfo.cpp
InstrEmitter.cpp
InstrEmitter.h
LegalizeDAG.cpp
LegalizeFloatTypes.cpp
LegalizeIntegerTypes.cpp	Masked Load / Store Intrinsics - the CodeGen part.	2014-12-04 09:40:44 +00:00
LegalizeTypes.cpp
LegalizeTypes.h	Masked Load / Store Intrinsics - the CodeGen part.	2014-12-04 09:40:44 +00:00
LegalizeTypesGeneric.cpp
LegalizeVectorOps.cpp
LegalizeVectorTypes.cpp	Masked Load / Store Intrinsics - the CodeGen part.	2014-12-04 09:40:44 +00:00
LLVMBuild.txt
Makefile
ResourcePriorityQueue.cpp
ScheduleDAGFast.cpp
ScheduleDAGRRList.cpp
ScheduleDAGSDNodes.cpp
ScheduleDAGSDNodes.h
ScheduleDAGVLIW.cpp
SDNodeDbgValue.h
SelectionDAG.cpp	merge consecutive loads that are offset from a base address	2014-12-16 21:57:18 +00:00
SelectionDAGBuilder.cpp	SelectionDAG switch lowering: use 'unsigned' to count destination popularity	2014-12-16 23:41:59 +00:00
SelectionDAGBuilder.h	Masked Load / Store Intrinsics - the CodeGen part.	2014-12-04 09:40:44 +00:00
SelectionDAGDumper.cpp	Masked Load / Store Intrinsics - the CodeGen part.	2014-12-04 09:40:44 +00:00
SelectionDAGISel.cpp
SelectionDAGPrinter.cpp
StatepointLowering.cpp
StatepointLowering.h
TargetLowering.cpp
TargetSelectionDAGInfo.cpp