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7 Commits

Author SHA1 Message Date
Chris Lattner a05cd83d2f Add a hook to find out how the target handles shift amounts that are out of 
range.  Either they are undefined (the default), they mask the shift amount
to the size of the register (X86, Alpha, etc), or they extend the shift (PPC).

This defaults to undefined, which is conservatively correct.

llvm-svn: 19677
 2005-01-19 03:36:14 +00:00
Chris Lattner 5f180e4645 Shift and setcc types default to the pointer type. 
llvm-svn: 19619
 2005-01-16 23:59:48 +00:00
Chris Lattner 6f8097951c Use enums, move virtual dtor out of line. 
llvm-svn: 19610
 2005-01-16 07:28:11 +00:00
Chris Lattner 8ec1dc5fc0 Set up identity transforms. 
llvm-svn: 19584
 2005-01-16 01:20:18 +00:00
Chris Lattner 1bc93bac69 Move some information out of LegalizeDAG into the generic Target interface. 
llvm-svn: 19581
 2005-01-16 01:10:58 +00:00
Chris Lattner 4cbf1f0038 Clear the whole array, always. 
llvm-svn: 19482
 2005-01-11 20:25:26 +00:00
Chris Lattner 3a4d1b2721 First draft of new Target interface 
llvm-svn: 19324
 2005-01-07 07:44:53 +00:00