Evan Cheng ca1e6eea8e Joining a live interval of a physical register with a virtual one can turn out ... to be really bad. Once they are joined they are not broken apart. Also, physical intervals cannot be spilled! Added a heuristic as a workaround for this. Be careful coalescing with a physical register if the virtual register uses are "far". Check if there are uses in the same loop as the source (copy instruction). Check if it is in the loop preheader, etc. llvm-svn: 35134		2007-03-17 09:27:35 +00:00
..
SelectionDAG	Use SmallSet instead of std::set.	2007-03-17 08:53:30 +00:00
AsmPrinter.cpp	Small eye-candy: use asciz directive everywhere, where possible.	2007-03-06 19:25:02 +00:00
BranchFolding.cpp	Remove isAccessable.	2007-02-22 16:39:03 +00:00
DwarfWriter.cpp	Cleanup: make SetCounter an instance variable	2007-03-07 08:25:02 +00:00
ELFWriter.cpp	Generalize TargetData strings, to support more interesting forms of data.	2007-02-14 05:52:17 +00:00
ELFWriter.h	Moved from include/llvm/CodeGen to lib/CodeGen.	2007-02-08 01:30:50 +00:00
IntrinsicLowering.cpp	Lower eh filter intrinsic.	2007-03-01 20:24:30 +00:00
LiveInterval.cpp	Added an automatic cast to "std::ostream*" etc. from OStream. We then can	2006-12-17 05:15:13 +00:00
LiveIntervalAnalysis.cpp	Joining a live interval of a physical register with a virtual one can turn out	2007-03-17 09:27:35 +00:00
LiveVariables.cpp	If a virtual register is already marked alive in this block, that means it is	2007-03-09 09:48:56 +00:00
LLVMTargetMachine.cpp	Now LoopStrengthReduce is a LoopPass.	2007-03-06 21:14:09 +00:00
MachineBasicBlock.cpp	Print preds / succs BB numbers.	2007-03-09 08:29:08 +00:00
MachineFunction.cpp	Generalize TargetData strings, to support more interesting forms of data.	2007-02-14 05:52:17 +00:00
MachineInstr.cpp	Use findRegisterUseOperand to find a kill of particular register.	2007-02-23 01:04:26 +00:00
MachineModuleInfo.cpp	Collect eh filter info.	2007-03-01 20:25:32 +00:00
MachinePassRegistry.cpp	Final polish on machine pass registries.	2006-08-02 12:30:23 +00:00
MachOWriter.cpp	Remove unneeded header file.	2007-03-04 04:41:04 +00:00
MachOWriter.h	More Mach-O writer improvements.	2007-02-28 07:40:50 +00:00
Makefile	this will work better	2006-11-03 19:15:55 +00:00
Passes.cpp	*** empty log message ***	2006-11-16 20:11:33 +00:00
PHIElimination.cpp	rename DenseMap to IndexedMap.	2007-02-01 05:32:05 +00:00
PhysRegTracker.h	Improved PhysRegTracker interface. RegAlloc lazily allocates the register tracker using a std::auto_ptr	2004-02-23 06:10:13 +00:00
PrologEpilogInserter.cpp	If target decides to create an emergency spill slot, make sure it's closest to SP or frame pointer.	2007-03-06 10:02:38 +00:00
RegAllocLinearScan.cpp	Only add liveinterval to livein set if it isn't assigned a stack slot.	2007-02-25 09:39:02 +00:00
RegAllocLocal.cpp	Use BitVector instead of vector<bool> which can be extremely slow.	2007-02-15 05:59:24 +00:00
RegAllocSimple.cpp	Eliminate static ctors from Statistics	2006-12-19 22:41:21 +00:00
RegisterScavenging.cpp	Minor bug fix.	2007-03-06 21:58:15 +00:00
TwoAddressInstructionPass.cpp	Eliminate static ctors from Statistics	2006-12-19 22:41:21 +00:00
UnreachableBlockElim.cpp	eliminate RegisterOpt. It does the same thing as RegisterPass.	2006-08-27 22:42:52 +00:00
VirtRegMap.cpp	Only propagate IsKill if the last use is a kill.	2007-03-03 06:32:37 +00:00
VirtRegMap.h	rename DenseMap to IndexedMap.	2007-02-01 05:32:05 +00:00