[PATCH] D68900: [SROA] Reuse existing lifetime markers if possible

[Johannes Doerfert via Phabricator via llvm-commits]

jdoerfert created this revision.
jdoerfert added reviewers: reames, ssarda, t.p.northover, hfinkel.
Herald added subscribers: bollu, hiraditya.
Herald added a project: LLVM.

If the underlying alloca did not change, we do not necessarily need new
lifetime markers. This patch adds a check and reuses the old ones if
possible.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D68900

Files:
  llvm/lib/Transforms/Scalar/SROA.cpp
  llvm/test/Transforms/SROA/reuse_lifetime_markers.ll

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