[PATCH] D55515: [x86] increment/decrement constant vector with min/max in vsetcc lowering (PR39859)

[Sanjay Patel via Phabricator via llvm-commits]

spatel added a comment.

In D55515#1326183 <https://reviews.llvm.org/D55515#1326183>, @nikic wrote:

> Are there any tests for the 0/max cases? (I guess they're probably just constant folded away anyway?)


No - I can add those, but it's probably hard to get that pattern this deep into SDAG. 
And yes, we would hope that those would always get folded, but nothing is certain in SDAG which is why I could not just assert that those cases are impossible.


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