Chris Lattner b980578b41 Keep track of which registers are related to which other registers. ... Use this information to avoid doing expensive interval intersections for registers that could not possible be interesting. This speeds up linscan on ia64 compiling kc++ in release mode from taking 7.82s to 4.8s(!), total itanium llc time on this program is 27.3s now. This marginally speeds up PPC and X86, but they appear to be limited by other parts of linscan, not this code. On this program, on itanium, live intervals now takes 41% of llc time. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22986 91177308-0d34-0410-b5e6-96231b3b80d8		2005-08-23 22:27:31 +00:00
..
SelectionDAG	Teach the SelectionDAG how to transform select_cc eq, X, 0, 1, 0 into	2005-08-23 05:41:12 +00:00
AsmPrinter.cpp	Culling out use of unions for converting FP to bits and vice versa.	2005-08-17 19:34:49 +00:00
BranchFolding.cpp	Remove trailing whitespace	2005-04-21 22:36:52 +00:00
ELFWriter.cpp	Fix VC++ constant truncation warning.	2005-08-19 16:19:21 +00:00
IntrinsicLowering.cpp	Eliminate all remaining tabs and trailing spaces.	2005-07-27 06:12:32 +00:00
LiveInterval.cpp	Print the symbolic register name in a register allocator debug dump.	2005-05-14 05:34:15 +00:00
LiveInterval.h	Print the symbolic register name in a register allocator debug dump.	2005-05-14 05:34:15 +00:00
LiveIntervalAnalysis.cpp	Fix debug info to not print out recently freed memory.	2005-07-27 23:11:25 +00:00
LiveIntervalAnalysis.h	Allow the live interval analysis pass to be a bit more aggressive about	2005-03-09 23:05:19 +00:00
LiveVariables.cpp	allow a virtual register to be associated with live-in values.	2005-05-13 07:08:07 +00:00
MachineBasicBlock.cpp	Remove trailing whitespace	2005-04-21 22:36:52 +00:00
MachineCodeEmitter.cpp	new is not a valid default anywhere, so make this pure virtual	2005-07-28 18:13:59 +00:00
MachineFunction.cpp	print stack object alignment in -print-machineinstr dumps	2005-05-13 22:54:44 +00:00
MachineInstr.cpp	Remove trailing whitespace	2005-04-21 22:36:52 +00:00
Makefile
Passes.cpp	Remove trailing whitespace	2005-04-21 22:36:52 +00:00
PHIElimination.cpp	* Order #includes alphabetically	2005-05-05 23:45:17 +00:00
PhysRegTracker.h
PrologEpilogInserter.cpp	When inserting callee-save register reloads, make sure to skip over any	2005-05-15 03:09:58 +00:00
RegAllocIterativeScan.cpp	Update these register allocators to set the PhysRegUsed info in MachineFunction.	2005-01-23 22:45:13 +00:00
RegAllocLinearScan.cpp	Keep track of which registers are related to which other registers.	2005-08-23 22:27:31 +00:00
RegAllocLocal.cpp	Remove trailing whitespace	2005-04-21 22:36:52 +00:00
RegAllocSimple.cpp	Convert tabs to spaces	2005-04-22 04:01:18 +00:00
TwoAddressInstructionPass.cpp	Remove trailing whitespace	2005-04-21 22:36:52 +00:00
UnreachableBlockElim.cpp	Remove trailing whitespace	2005-04-21 22:36:52 +00:00
VirtRegMap.cpp	Remove trailing whitespace	2005-04-21 22:36:52 +00:00
VirtRegMap.h	Remove trailing whitespace	2005-04-21 22:36:52 +00:00