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
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Analysis	Fix Transforms/LoopStrengthReduce/2005-08-15-AddRecIV.ll	2005-08-16 00:37:01 +00:00
Archive	Final Changes For PR495:	2005-07-08 03:08:58 +00:00
AsmParser	Fix grammar	2005-06-24 18:00:40 +00:00
Bytecode	Culling out use of unions for converting FP to bits and vice versa.	2005-08-17 19:34:49 +00:00
CodeGen	Keep track of which registers are related to which other registers.	2005-08-23 22:27:31 +00:00
Debugger	For PR495:	2005-07-07 23:21:43 +00:00
ExecutionEngine	one cannot allocate a global, until one is done initializing the global pointers	2005-08-01 17:35:40 +00:00
Linker	For PR495:	2005-07-07 23:21:43 +00:00
Support	Allow tools with "consume after" options (like lli) to take more positional	2005-08-08 21:57:27 +00:00
System	Fix grammar: it's == "it is".	2005-08-02 16:04:59 +00:00
Target	Fix PR618 and Regression/CodeGen/CBackend/2005-08-23-Fmod.ll by not emitting	2005-08-23 20:22:50 +00:00
Transforms	Fix Transforms/LoopStrengthReduce/2005-08-17-OutOfLoopVariant.ll, a crash	2005-08-17 21:22:41 +00:00
VMCore	Move code dependency for MathExtras.h out of Constants.h.	2005-08-17 20:06:22 +00:00
Makefile	Add the Linker library	2004-11-14 21:54:41 +00:00