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Author SHA1 Message Date
Matt Arsenault e482403e1c DAGCombiner: Add hasOneUse checks to fadd/fma combine 
Even with aggressive fusion enabled, this requires duplicating
the fmul, or increases an fadd to another fma which is not an
improvement.

llvm-svn: 291642
 2017-01-11 02:02:12 +00:00