James Molloy f30ebaced7 [LoopUtils,LV] Propagate fast-math flags on generated FCmp instructions
We're currently losing any fast-math flags when synthesizing fcmps for
min/max reductions. In LV, make sure we copy over the scalar inst's
flags. In LoopUtils, we know we only ever match patterns with
hasUnsafeAlgebra, so apply that to any synthesized ops.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248201 91177308-0d34-0410-b5e6-96231b3b80d8
2015-09-21 19:41:19 +00:00
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