Evan Cheng 7b2a001669 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
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Analysis	Now IndVarSimplify is a LoopPass.	2007-03-07 06:39:01 +00:00
AsmParser	Regenerate.	2007-03-09 21:19:09 +00:00
Bytecode	Use a simpler constructor for ConstantInt.	2007-03-01 20:25:31 +00:00
CodeGen	Joining a live interval of a physical register with a virtual one can turn out	2007-03-17 09:27:35 +00:00
Debugger	Don't use <sstream> in Streams.h but <iosfwd> instead.	2006-12-07 23:41:45 +00:00
ExecutionEngine	Unbreak C++ build.	2007-03-12 17:57:00 +00:00
Linker	For PR1195:	2007-02-15 02:26:10 +00:00
Support	Revert the last patch as it violates the conditions of sext/zext.	2007-03-12 18:37:25 +00:00
System	Unbreak mingw32 build	2007-03-09 11:53:34 +00:00
Target	Support 'I' inline asm constraint.	2007-03-17 00:13:28 +00:00
Transforms	Add more comments and update to new asm syntax.	2007-03-16 02:37:39 +00:00
VMCore	Speed Up Pass Manager.	2007-03-08 19:05:01 +00:00
Makefile	Changes to support making the shift instructions be true BinaryOperators.	2007-02-02 02:16:23 +00:00