Andrew Trick a0e69757d1 Support for precise scheduling of the instruction selection DAG, ... disabled in this checkin. Sorry for the large diffs due to refactoring. New functionality is all guarded by EnableSchedCycles. Scheduling the isel DAG is inherently imprecise, but we give it a best effort: - Added MayReduceRegPressure to allow stalled nodes in the queue only if there is a regpressure need. - Added BUHasStall to allow checking for either dependence stalls due to latency or resource stalls due to pipeline hazards. - Added BUCompareLatency to encapsulate and standardize the heuristics for minimizing stall cycles (vs. reducing register pressure). - Modified the bottom-up heuristic (now in BUCompareLatency) to prioritize nodes by their depth rather than height. As long as it doesn't stall, height is irrelevant. Depth represents the critical path to the DAG root. - Added hybrid_ls_rr_sort::isReady to filter stalled nodes before adding them to the available queue. Related Cleanup: most of the register reduction routines do not need to be templates. llvm-svn: 123468		2011-01-14 21:11:41 +00:00
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CMakeLists.txt	Removed a bunch of unnecessary target_link_libraries.	2010-09-28 22:39:14 +00:00
DAGCombiner.cpp	Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there.	2011-01-10 12:39:04 +00:00
FastISel.cpp	If dbg_declare() or dbg_value() is not lowered by isel then emit DEBUG message instead of creating DBG_VALUE for undefined value in reg0.	2010-12-06 22:39:26 +00:00
FunctionLoweringInfo.cpp	Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there.	2011-01-10 12:39:04 +00:00
InstrEmitter.cpp	Simplify a bunch of isVirtualRegister() and isPhysicalRegister() logic.	2011-01-10 02:58:51 +00:00
InstrEmitter.h	Don't set kill flags for instructions which the scheduler has cloned.	2010-05-14 22:01:14 +00:00
LegalizeDAG.cpp	Fix r123346 to handle scalar types too.	2011-01-13 01:06:51 +00:00
LegalizeFloatTypes.cpp	PR5207: Rename overloaded APInt methods set(), clear(), flip() to	2010-12-01 08:53:58 +00:00
LegalizeIntegerTypes.cpp	Move ExpandAtomic into the integer expansion routines - it's only used there.	2011-01-11 00:36:08 +00:00
LegalizeTypes.cpp	Move ExpandAtomic into the integer expansion routines - it's only used there.	2011-01-11 00:36:08 +00:00
LegalizeTypes.h	Add some fairly duplicated code to let type legalization split illegal	2011-01-06 22:28:56 +00:00
LegalizeTypesGeneric.cpp	Renaming ISD::BIT_CONVERT to ISD::BITCAST to better reflect the LLVM IR concept.	2010-11-23 03:31:01 +00:00
LegalizeVectorOps.cpp	Renaming ISD::BIT_CONVERT to ISD::BITCAST to better reflect the LLVM IR concept.	2010-11-23 03:31:01 +00:00
LegalizeVectorTypes.cpp	Change EXTRACT_SUBVECTOR to require a constant index.	2011-01-07 04:58:56 +00:00
Makefile	make -fno-rtti the default unless a directory builds with REQUIRES_RTTI.	2010-01-24 20:43:08 +00:00
ScheduleDAGFast.cpp	flags -> glue for selectiondag	2010-12-23 17:24:32 +00:00
ScheduleDAGList.cpp	Various bits of framework needed for precise machine-level selection	2010-12-24 05:03:26 +00:00
ScheduleDAGRRList.cpp	Support for precise scheduling of the instruction selection DAG,	2011-01-14 21:11:41 +00:00
ScheduleDAGSDNodes.cpp	flags -> glue for selectiondag	2010-12-23 17:24:32 +00:00
ScheduleDAGSDNodes.h	rename MVT::Flag to MVT::Glue. "Flag" is a terrible name for	2010-12-21 02:38:05 +00:00
SDNodeDbgValue.h	Merge System into Support.	2010-11-29 18:16:10 +00:00
SDNodeOrdering.h	Allow 0 as an order number. Don't assign an order to formal arguments.	2009-12-22 21:35:02 +00:00
SelectionDAG.cpp	Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there.	2011-01-10 12:39:04 +00:00
SelectionDAGBuilder.cpp	Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there.	2011-01-10 12:39:04 +00:00
SelectionDAGBuilder.h	Avoid zero extend bit test operands to pointer type if all the masks fit in	2011-01-06 01:02:44 +00:00
SelectionDAGISel.cpp	Set the insertion point correctly for instructions generated by load folding:	2011-01-14 01:33:40 +00:00
SelectionDAGPrinter.cpp	flags -> glue for selectiondag	2010-12-23 17:24:32 +00:00
TargetLowering.cpp	Fix PR 8916 (qv for analysis), at least the immediate problem.	2011-01-10 21:53:07 +00:00
TargetSelectionDAGInfo.cpp	Implement a bunch more TargetSelectionDAGInfo infrastructure.	2010-05-11 17:31:57 +00:00