Chris Lattner 1832a32b78 implement a transformation in jump threading that is currently ... done by condprop, but do it in a much more general form. The basic idea is that we can do a limited form of tail duplication in the case when we have a branch on a phi. Moving the branch up in to the predecessor block makes instruction selection much easier and encourages chained jump threadings. llvm-svn: 83759		2009-10-11 07:24:57 +00:00
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Analysis	Revert r83606 and add comments explaining why it isn't safe.	2009-10-09 16:35:06 +00:00
Archive	Prune #includes from llvm/Linker.h and llvm/System/Path.h,	2009-08-23 22:45:37 +00:00
AsmParser	strength reduce a ton of type equality tests to check the typeid (Through	2009-10-05 05:54:46 +00:00
Bitcode	strength reduce a ton of type equality tests to check the typeid (Through	2009-10-05 05:54:46 +00:00
CodeGen	Create a new InstrEmitter class for translating SelectionDAG nodes	2009-10-10 01:32:21 +00:00
CompilerDriver	convert LoopInfo.h and GraphWriter.h to use raw_ostream	2009-08-23 07:19:13 +00:00
ExecutionEngine	ExecutionEngine::clearGlobalMappingsFromModule failed to remove reverse	2009-10-09 22:10:27 +00:00
Linker	Remove unnecessary #include.	2009-09-12 22:24:25 +00:00
MC	Fixed MCSectionMachO::ParseSectionSpecifier to allow an attribute of "none" so	2009-10-07 20:57:20 +00:00
Support	r83391 was completely broken since Twines keep references to their inputs, and	2009-10-06 21:45:26 +00:00
System	MingW build fixes	2009-10-02 19:36:31 +00:00
Target	It seems that OR operation does not affect status reg at all.	2009-10-10 22:17:47 +00:00
Transforms	implement a transformation in jump threading that is currently	2009-10-11 07:24:57 +00:00
VMCore	Add a form of addPreserved which takes a string argument, to allow passes	2009-10-08 17:00:02 +00:00
Makefile	remove llvm-db: it is completely broken and if anyone wants to do a debugger,	2009-10-05 02:29:51 +00:00