Andrew Trick d1dace8aea Enable support for precise scheduling of the instruction selection ... DAG. Disable using "-disable-sched-cycles". For ARM, this enables a framework for modeling the cpu pipeline and counting stalls. It also activates several heuristics to drive scheduling based on the model. Scheduling is inherently imprecise at this stage, and until spilling is improved it may defeat attempts to schedule. However, this framework provides greater control over tuning codegen. Although the flag is not target-specific, it should have very little affect on the default scheduler used by x86. The only two changes that affect x86 are: - scheduling a high-latency operation bumps the current cycle so independent operations can have their latency covered. i.e. two independent 4 cycle operations can produce results in 4 cycles, not 8 cycles. - Two operations with equal register pressure impact and no latency-based stalls on their uses will be prioritized by depth before height (height is irrelevant if no stalls occur in the schedule below this point). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123971 91177308-0d34-0410-b5e6-96231b3b80d8		2011-01-21 06:19:05 +00:00
..
CMakeLists.txt
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
LegalizeDAG.cpp	Use only one API at a time.	2011-01-20 01:29:23 +00:00
LegalizeFloatTypes.cpp
LegalizeIntegerTypes.cpp	Expand invalid return values for umulo and smulo. Handle these similarly	2011-01-20 08:54:28 +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	My editor's indent went crazy. Fix.	2011-01-20 08:56:34 +00:00
LegalizeTypesGeneric.cpp
LegalizeVectorOps.cpp
LegalizeVectorTypes.cpp	Change EXTRACT_SUBVECTOR to require a constant index.	2011-01-07 04:58:56 +00:00
Makefile
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	Enable support for precise scheduling of the instruction selection	2011-01-21 06:19:05 +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
SDNodeOrdering.h
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	reapply my fix for PR8961 with a tweak to properly handle	2011-01-16 02:27:38 +00:00
SelectionDAGPrinter.cpp	flags -> glue for selectiondag	2010-12-23 17:24:32 +00:00
TargetLowering.cpp	Fix an off-by-one error in ctpop combining.	2011-01-17 18:00:28 +00:00
TargetSelectionDAGInfo.cpp