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3 Commits

Author SHA1 Message Date
Nuno Lopes
75564e3514 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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160874 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-27 18:03:57 +00:00
Eli Friedman
00805fae5b PR10180: Fix a instcombine crash with FP vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133756 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-23 20:40:23 +00:00
Dale Johannesen
f514f52790 Teach InstCombine not to use Add and Neg on FP. PR 8490. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117510 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 23:45:18 +00:00