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Commit df7454f9 authored by Craig Topper's avatar Craig Topper
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Revert "[ValueTracking] Teach computeKnownBits for PHI nodes to compute sign... 

Revert "[ValueTracking] Teach computeKnownBits for PHI nodes to compute sign bit for a recurrence with a NSW addition."

This is breaking an optimizaton remark test in clang. I've identified a couple fixes for that, but want to understand it better before I commit to anything.

llvm-svn: 274102
parent b5beb97b
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