[PATCH] D29624: [DSE] Basic MemorySSA-backed global DSE

[bryant via Phabricator via llvm-commits]

bryant added a comment.

To-do.



================
Comment at: lib/Transforms/Scalar/DeadStoreElimination.cpp:1529
+          DEBUG(dbgs() << "found non-escaping mem: " << I << "\n");
+          NonEscapes.insert(&I);
+        }
----------------
Maybe use PtrUseVisitor to build `NonEscapes` instead of densely stomping on all instructions. Also for `Returns`.


Repository:
  rL LLVM

https://reviews.llvm.org/D29624