[PATCH] D45299: API to update MemorySSA for cloned blocks.

Jakub Kuderski via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Aug 20 13:54:54 PDT 2018


kuhar added inline comments.


================
Comment at: lib/Analysis/MemorySSAUpdater.cpp:662
+  // Get nearest IDom given a set of blocks.
+  auto FindNearestCommonDominator =
+      [&](SmallPtrSetImpl<BasicBlock *> &BBSet) -> BasicBlock * {
----------------
I don't think this will be a bottleneck, but this can be optimized by starting the search at the node with the lowest level (highest in the tree).


Repository:
  rL LLVM

https://reviews.llvm.org/D45299





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