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Author SHA1 Message Date
Sanjay Patel 4ad3c32144 [InstCombine, NewGVN] remove FP undef from tests 
I'm trying to preserve the intent of these tests by using 
non-undef operands; if we fix FP undef folding these tests
will not pass.

llvm-svn: 327004
 2018-03-08 14:57:08 +00:00
Daniel Berlin 2f72b19b05 NewGVN: Don't propagate over phi backedges where undef causes us to 
have >1 value, unless we can prove the phi node is cycle free.

Fixes PR 32607.

llvm-svn: 300299
 2017-04-14 02:53:37 +00:00