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Commit 23f9edda authored by Simon Pilgrim's avatar Simon Pilgrim
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[SelectionDAG] Split float and integer isKnownNeverZero tests 

Splits off isKnownNeverZeroFloat to handle +/- 0 float cases.

This will make it easier to be more aggressive with the integer isKnownNeverZero tests (similar to ValueTracking), use computeKnownBits etc.

Differential Revision: https://reviews.llvm.org/D48969

llvm-svn: 336492
parent 0a36daa5
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