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Author SHA1 Message Date
Eli Friedman ac149ee60a Add a comment which should hopefully make the purpose of this method a 
bit clearer.

llvm-svn: 72374
 2009-05-24 20:32:10 +00:00
Eli Friedman da90dd6d72 Add a new step to legalization to legalize vector math operations. This 
will allow simplifying LegalizeDAG to eliminate type legalization.  (I 
have a patch to do that, but it's not quite finished; I'll commit it 
once it's finished and I've fixed any review comments for this patch.)  
See the comment at the beginning of 
lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp for more details on the
motivation for this patch.

llvm-svn: 72325
 2009-05-23 12:35:30 +00:00