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Author SHA1 Message Date
Richard Sandiford 3875cb60f3 [SystemZ] Fix RNSBG bug introduced by r197802 
The zext handling added in r197802 wasn't right for RNSBG.  This patch
restricts it to ROSBG, RXSBG and RISBG.  (The tests for RISBG were added
in r197802 since RISBG was the motivating example.)

llvm-svn: 198862
 2014-01-09 11:28:53 +00:00
Richard Sandiford 885140c951 [SystemZ] Use ROSBG and non-zero form of RISBG for OR nodes 
llvm-svn: 186405
 2013-07-16 11:55:57 +00:00