[PATCH] D141487: [LoopUnroll] Directly update DT instead of DTU.

[Florian Hahn via Phabricator via llvm-commits]

fhahn marked an inline comment as done.
fhahn added inline comments.


================
Comment at: llvm/lib/Transforms/Utils/BasicBlockUtils.cpp:243
+      for (DomTreeNode *C : to_vector(BBNode->children()))
+        C->setIDom(PredNode);
+    }
----------------
nikic wrote:
> Doesn't this need to check whether the old idom was BB? Couldn't it be higher up?
I might be missing something here, but `BBNode->children()` iterates over the nodes which have `BB` as idom.


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https://reviews.llvm.org/D141487