Craig Topper df7454f94b 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

2016-06-29 04:57:00 +00:00

5.1 KiB

Raw Blame History

View Raw