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Commit 4f052461 authored by Benjamin Kramer's avatar Benjamin Kramer
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[InstSimplify] Add self-fdiv identities for -ffinite-math-only. 

When NaNs and Infs are ignored we can fold
 X /  X -> 1.0
-X /  X -> -1.0
 X / -X -> -1.0

llvm-svn: 239701
parent 5e496971
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