Alkis Evlogimenos e88280a422 Add option to join live intervals. Two intervals are joined if there ... is a move between two registers, at least one of the registers is virtual and the two live intervals do not overlap. This results in about 40% reduction in intervals, 30% decrease in the register allocators running time and a 20% increase in peephole optimizations (mainly move eliminations). The option can be enabled by passing -join-liveintervals where appropriate. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10965 91177308-0d34-0410-b5e6-96231b3b80d8		2004-01-22 23:08:45 +00:00
..
InstrSched	Moved iterators around.	2004-01-20 17:51:13 +00:00
ModuloScheduling
SelectionDAG
IntrinsicLowering.cpp	Hrm, apparently I missed lowering this intrinsic. :(	2004-01-14 20:41:29 +00:00
LiveIntervalAnalysis.cpp	Add option to join live intervals. Two intervals are joined if there	2004-01-22 23:08:45 +00:00
LiveIntervalAnalysis.h	Add option to join live intervals. Two intervals are joined if there	2004-01-22 23:08:45 +00:00
LiveVariables.cpp	Remove unneeded check (with the recent change in live variables a use	2004-01-13 21:16:25 +00:00
MachineCodeEmitter.cpp
MachineCodeForInstruction.cpp	Remove use of llvm/CodeGen/InstrSelection.h	2004-01-10 19:16:26 +00:00
MachineFunction.cpp	Add a new target-independent machine code freeing pass	2003-12-20 10:20:58 +00:00
MachineInstr.cpp
MachineInstrAnnot.cpp
Makefile	Move InstrSelection into lib/Target/Sparc, as it's sparc specific	2004-01-09 06:24:06 +00:00
Passes.cpp	finegrainify namespacification	2003-12-28 07:59:53 +00:00
PHIElimination.cpp
PrologEpilogInserter.cpp
RegAllocLinearScan.cpp	Add option to join live intervals. Two intervals are joined if there	2004-01-22 23:08:45 +00:00
RegAllocLocal.cpp	Correctly compute live variable information for physical registers	2004-01-13 06:24:30 +00:00
RegAllocSimple.cpp
TwoAddressInstructionPass.cpp	Make LiveVariables::HandlePhysRegUse and	2004-01-11 09:18:45 +00:00