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Author SHA1 Message Date
Nate Begeman 457367f14c Add a couple more nodes that are easy to handle 
llvm-svn: 22850
 2005-08-18 00:53:47 +00:00
Nate Begeman 74d5529b88 Be fruitful and multiply! 
llvm-svn: 22849
 2005-08-18 00:21:41 +00:00
Nate Begeman 3fcf47d8f0 Teach the DAG->DAG ISel about FNEG, and how it can be used to invert 
several of the PowerPC opcodes that come in both negated and non-negated
forms.

llvm-svn: 22845
 2005-08-17 23:46:35 +00:00
Chris Lattner 43ff01e2e6 initial hack at a dag->dag instruction selector. This is obviously woefully 
incomplete, but it is a start.  It handles basic argument/retval stuff, immediates,
add and sub.

llvm-svn: 22836
 2005-08-17 19:33:03 +00:00