[llvm-commits] Patch: Widening in LegalizeType

[Mon Ping Wang]

Hi,

This is a patch for adding widening support into LegalizeType.  One  
issue that I ran into is that for Vector shuffles, the mask operand  
doesn't need to be widened even though it type might indicate that it  
should be widened .e.g, a shuffle of v2i64 would have a shuffle mask  
v2i32.   To avoid this problem when scanning the operands, it checks  
if it is a vector shuffle and if it is the second operand.  If so, it  
adds the node to the set of result nodes to ignore and continue.  I  
didn't include the tests that will go into the check in.  Please let  
me know if you have any comments.

Thanks,
   -- Mon Ping


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