[PATCH] D44083: [MergICmps] Make sure that the comparison only has one use.

[Sanjay Patel via Phabricator via llvm-commits]

spatel added inline comments.


================
Comment at: lib/Transforms/Scalar/MergeICmps.cpp:186-188
+  // The comparison can only be used once:
+  //  - For intermediate blocks, as a branch condition.
+  //  - For the final block, as an incoming value for the Phi.
----------------
The change looks safe and fixes the bug. But I haven't looked at the whole pass, so it's not clear to me why we should have the restriction. Can you add something to the comment to explain?


Repository:
  rL LLVM

https://reviews.llvm.org/D44083