[PATCH] D65746: [ARM] Generate VHADDs/VHSUBs

[Dave Green via Phabricator via llvm-commits]

dmgreen accepted this revision.
dmgreen added a comment.
This revision is now accepted and ready to land.

Looks good to me.

Sam: I think the instruction is just defined like that, unfortunately. It does (A+B) >> 1, not (A+B)/2. So if a+b is signed and turns out to be an odd negative number, the instruction rounds towards -inf, not towards 0.


Repository:
  rL LLVM

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https://reviews.llvm.org/D65746