llvm/lib/CodeGen/CMakeLists.txt
Jakob Stoklund Olesen 8879480ed7 Sketch a LiveRegMatrix analysis pass.
The LiveRegMatrix represents the live range of assigned virtual
registers in a Live interval union per register unit. This is not
fundamentally different from the interference tracking in RegAllocBase
that both RABasic and RAGreedy use.

The important differences are:

- LiveRegMatrix tracks interference per register unit instead of per
  physical register. This makes interference checks cheaper and
  assignments slightly more expensive. For example, the ARM D7 reigster
  has 24 aliases, so we would check 24 physregs before assigning to one.
  With unit-based interference, we check 2 units before assigning to 2
  units.

- LiveRegMatrix caches regmask interference checks. That is currently
  duplicated functionality in RABasic and RAGreedy.

- LiveRegMatrix is a pass which makes it possible to insert
  target-dependent passes between register allocation and rewriting.
  Such passes could tweak the register assignments with interference
  checking support from LiveRegMatrix.

Eventually, RABasic and RAGreedy will be switched to LiveRegMatrix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158255 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-09 02:13:10 +00:00

110 lines
2.4 KiB
CMake

add_llvm_library(LLVMCodeGen
AggressiveAntiDepBreaker.cpp
AllocationOrder.cpp
Analysis.cpp
BranchFolding.cpp
CalcSpillWeights.cpp
CallingConvLower.cpp
CodeGen.cpp
CodePlacementOpt.cpp
CriticalAntiDepBreaker.cpp
DeadMachineInstructionElim.cpp
DFAPacketizer.cpp
DwarfEHPrepare.cpp
EdgeBundles.cpp
ExecutionDepsFix.cpp
ExpandISelPseudos.cpp
ExpandPostRAPseudos.cpp
GCMetadata.cpp
GCMetadataPrinter.cpp
GCStrategy.cpp
IfConversion.cpp
InlineSpiller.cpp
InterferenceCache.cpp
IntrinsicLowering.cpp
JITCodeEmitter.cpp
LLVMTargetMachine.cpp
LatencyPriorityQueue.cpp
LexicalScopes.cpp
LiveDebugVariables.cpp
LiveInterval.cpp
LiveIntervalAnalysis.cpp
LiveIntervalUnion.cpp
LiveRegMatrix.cpp
LiveStackAnalysis.cpp
LiveVariables.cpp
LiveRangeCalc.cpp
LiveRangeEdit.cpp
LocalStackSlotAllocation.cpp
MachineBasicBlock.cpp
MachineBlockFrequencyInfo.cpp
MachineBlockPlacement.cpp
MachineBranchProbabilityInfo.cpp
MachineCodeEmitter.cpp
MachineCopyPropagation.cpp
MachineCSE.cpp
MachineDominators.cpp
MachineFunction.cpp
MachineFunctionAnalysis.cpp
MachineFunctionPass.cpp
MachineFunctionPrinterPass.cpp
MachineInstr.cpp
MachineInstrBundle.cpp
MachineLICM.cpp
MachineLoopInfo.cpp
MachineLoopRanges.cpp
MachineModuleInfo.cpp
MachineModuleInfoImpls.cpp
MachinePassRegistry.cpp
MachineRegisterInfo.cpp
MachineSSAUpdater.cpp
MachineScheduler.cpp
MachineSink.cpp
MachineVerifier.cpp
OcamlGC.cpp
OptimizePHIs.cpp
PHIElimination.cpp
PHIEliminationUtils.cpp
Passes.cpp
PeepholeOptimizer.cpp
PostRASchedulerList.cpp
ProcessImplicitDefs.cpp
PrologEpilogInserter.cpp
PseudoSourceValue.cpp
RegAllocBase.cpp
RegAllocBasic.cpp
RegAllocFast.cpp
RegAllocGreedy.cpp
RegAllocPBQP.cpp
RegisterClassInfo.cpp
RegisterCoalescer.cpp
RegisterPressure.cpp
RegisterScavenging.cpp
RenderMachineFunction.cpp
ScheduleDAG.cpp
ScheduleDAGInstrs.cpp
ScheduleDAGPrinter.cpp
ScoreboardHazardRecognizer.cpp
ShadowStackGC.cpp
ShrinkWrapping.cpp
SjLjEHPrepare.cpp
SlotIndexes.cpp
Spiller.cpp
SpillPlacement.cpp
SplitKit.cpp
StackProtector.cpp
StackSlotColoring.cpp
StrongPHIElimination.cpp
TailDuplication.cpp
TargetFrameLoweringImpl.cpp
TargetInstrInfoImpl.cpp
TargetLoweringObjectFileImpl.cpp
TargetOptionsImpl.cpp
TwoAddressInstructionPass.cpp
UnreachableBlockElim.cpp
VirtRegMap.cpp
)
add_subdirectory(SelectionDAG)
add_subdirectory(AsmPrinter)