[PATCH] D82222: [DSE, MSSA] Treat passed by value args as invisible to caller.

[Florian Hahn via Phabricator via llvm-commits]

fhahn created this revision.
fhahn added reviewers: efriedma, asbirlea, george.burgess.iv.
Herald added subscribers: hiraditya, Prazek.
Herald added a project: LLVM.

This updates the MemorySSA backed implementation to treat arguments
passed by value similar to allocas: in they are assumed to be invisible
in the caller. This is similar to how they are treated in legacy DSE.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D82222

Files:
  llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
  llvm/test/Transforms/DeadStoreElimination/MSSA/simple-todo.ll
  llvm/test/Transforms/DeadStoreElimination/MSSA/simple.ll

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