Chris Lattner a279728372 add a new SimplifyInstruction API, which is like ConstantFoldInstruction, ... except that the result may not be a constant. Switch jump threading to use it so that it gets things like (X & 0) -> 0, which occur when phi preds are deleted and the remaining phi pred was a zero. llvm-svn: 86637		2009-11-10 01:08:51 +00:00
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llvm	add a new SimplifyInstruction API, which is like ConstantFoldInstruction,	2009-11-10 01:08:51 +00:00
llvm-c	Remove FreeInst.	2009-10-26 23:43:48 +00:00