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Author SHA1 Message Date
Nuno Lopes 20c7eb3549 fix infinite loop in instcombine in the presence of a (malformed) self-referencing select inst. 
This can happen as long as the instruction is not reachable. Instcombine does generate these unreachable malformed selects when doing RAUW

llvm-svn: 160874
 2012-07-27 18:03:57 +00:00
Eli Friedman 2c980fafff PR10180: Fix a instcombine crash with FP vectors. 
llvm-svn: 133756
 2011-06-23 20:40:23 +00:00
Dale Johannesen 16bb87a90e Teach InstCombine not to use Add and Neg on FP. PR 8490. 
llvm-svn: 117510
 2010-10-27 23:45:18 +00:00