Chris Lattner a411cbca5c Try to avoid scanning the fixed list. On architectures with a non-stupid ... number of regs (e.g. most riscs), many functions won't need to use callee clobbered registers. Do a speculative check to see if we can get a free register without processing the fixed list (which has all of these). This saves a lot of time on machines with lots of callee clobbered regs (e.g. ppc and itanium, also x86). This reduces ppc llc compile time from 184s -> 172s on kc++. This is probably worth FAR FAR more on itanium though. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22972 91177308-0d34-0410-b5e6-96231b3b80d8		2005-08-22 20:59:30 +00:00
..
SelectionDAG	Fix a problem where constant expr shifts would not have their shift amount	2005-08-22 17:28:31 +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
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
LiveVariables.cpp	allow a virtual register to be associated with live-in values.	2005-05-13 07:08:07 +00:00
MachineBasicBlock.cpp
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
Makefile
Passes.cpp
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
RegAllocLinearScan.cpp	Try to avoid scanning the fixed list. On architectures with a non-stupid	2005-08-22 20:59:30 +00:00
RegAllocLocal.cpp
RegAllocSimple.cpp
TwoAddressInstructionPass.cpp
UnreachableBlockElim.cpp
VirtRegMap.cpp
VirtRegMap.h