[PATCH] D78259: [TailCallElim] Add handling of readonly functions

[Layton Kifer via Phabricator via llvm-commits]

laytonio created this revision.
laytonio added reviewers: nlewycky, lattner.
Herald added a subscriber: hiraditya.
Herald added a project: LLVM.
laytonio updated this revision to Diff 257919.
laytonio added a comment.

noticed minor typo in the regression test


We can perform accumulator recursion on values loaded from memory, if we verify that the memory isn't modified before the function would have returned.


https://reviews.llvm.org/D78259

Files:
  llvm/lib/Transforms/Scalar/TailRecursionElimination.cpp
  llvm/test/Transforms/TailCallElim/accum_recursion.ll

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