[PATCH] D127275: [MVE] Fold fadd(select(..., +0.0)) into a predicated fadd

[David Sherwood via Phabricator via llvm-commits]

david-arm updated this revision to Diff 435449.
david-arm added a comment.

- Use the flags for the fadd to determine the safety of the transformation and apply the NSZ flag to the select if needed.
- Tweaked the tests to demonstrate the transform succeeds when the nsz flag is only on the fadd.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D127275/new/

https://reviews.llvm.org/D127275

Files:
  llvm/lib/Target/ARM/ARMISelLowering.cpp
  llvm/test/CodeGen/Thumb2/mve-pred-selectop3.ll

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