Chandler Carruth 9b187c9b9b [SDAG] Build up a more rich set of APIs for querying build-vector SDAG ... nodes about whether they are splats. This is factored out and improved from r212324 which got reverted as it was far too aggressive. The new API should help more conservatively handle buildvectors that are a mixture of splatted and undef values. No functionality change at this point. The hope is to slowly re-introduce the undef-tolerant optimization of splats, but each time being forced to make a concious decision about how to handle the undefs in a way that doesn't lead to contradicting assumptions about the collapsed value. Hal has pointed out in discussions that this may not end up being the desired API and instead it may be more convenient to get a mask of the undef elements or something similar. I'm starting simple and will expand the API as I adapt actual callers and see exactly what they need. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212514 91177308-0d34-0410-b5e6-96231b3b80d8		2014-07-08 07:19:55 +00:00
..
CMakeLists.txt
DAGCombiner.cpp	[SDAG] Build up a more rich set of APIs for querying build-vector SDAG	2014-07-08 07:19:55 +00:00
FastISel.cpp	Move function dependent resetting of a subtarget variable out of the	2014-07-04 01:55:26 +00:00
FunctionLoweringInfo.cpp
InstrEmitter.cpp
InstrEmitter.h
LegalizeDAG.cpp	[DAG] Pass the argument list to the CallLoweringInfo via move semantics. NFCI.	2014-07-01 22:01:54 +00:00
LegalizeFloatTypes.cpp
LegalizeIntegerTypes.cpp	[DAG] Pass the argument list to the CallLoweringInfo via move semantics. NFCI.	2014-07-01 22:01:54 +00:00
LegalizeTypes.cpp	[DAG] Pass the argument list to the CallLoweringInfo via move semantics. NFCI.	2014-07-01 22:01:54 +00:00
LegalizeTypes.h	Legalizer: Add support for splitting insert_subvectors.	2014-06-21 12:56:42 +00:00
LegalizeTypesGeneric.cpp	Fix ppcf128 component access on little-endian systems	2014-07-03 15:06:47 +00:00
LegalizeVectorOps.cpp	[cleanup] Hoist an if-else chain on ISD opcodes (really designed for	2014-07-02 06:23:34 +00:00
LegalizeVectorTypes.cpp	[x86] Fix the completely broken vector widening legalization of bswap.	2014-07-03 07:04:38 +00:00
LLVMBuild.txt
Makefile
ResourcePriorityQueue.cpp	Fix 'platform-specific' hyphenations	2014-06-30 18:57:16 +00:00
ScheduleDAGFast.cpp
ScheduleDAGRRList.cpp	The hazard recognizer only needs a subtarget, not a target machine	2014-06-13 22:38:52 +00:00
ScheduleDAGSDNodes.cpp
ScheduleDAGSDNodes.h
ScheduleDAGVLIW.cpp	The hazard recognizer only needs a subtarget, not a target machine	2014-06-13 22:38:52 +00:00
SDNodeDbgValue.h
SelectionDAG.cpp	[SDAG] Build up a more rich set of APIs for querying build-vector SDAG	2014-07-08 07:19:55 +00:00
SelectionDAGBuilder.cpp	Fix ppcf128 component access on little-endian systems	2014-07-03 15:06:47 +00:00
SelectionDAGBuilder.h	Fix 'platform-specific' hyphenations	2014-06-30 18:57:16 +00:00
SelectionDAGDumper.cpp	IR: add "cmpxchg weak" variant to support permitted failure.	2014-06-13 14:24:07 +00:00
SelectionDAGISel.cpp	Revert "Introduce a string_ostream string builder facilty"	2014-06-26 22:52:05 +00:00
SelectionDAGPrinter.cpp	Revert "Introduce a string_ostream string builder facilty"	2014-06-26 22:52:05 +00:00
TargetLowering.cpp	[SDAG] Build up a more rich set of APIs for querying build-vector SDAG	2014-07-08 07:19:55 +00:00
TargetSelectionDAGInfo.cpp	Have TargetSelectionDAGInfo take a DataLayout initializer rather than	2014-06-06 19:04:48 +00:00