[all-commits] [llvm/llvm-project] cdfd1e: Patch tryCanonicalizeStructToVector to handle spli...

[Yonah Goldberg via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: cdfd1e081529447ecb56ae7a43a32d8b237b9c28
      https://github.com/llvm/llvm-project/commit/cdfd1e081529447ecb56ae7a43a32d8b237b9c28
  Author: Yonah Goldberg <ygoldberg at nvidia.com>
  Date:   2026-06-22 (Mon, 22 Jun 2026)

  Changed paths:
    M llvm/lib/Passes/PassRegistry.def
    M llvm/lib/Transforms/Scalar/SROA.cpp
    M llvm/test/Transforms/SROA/struct-to-vector-subpartition.ll

  Log Message:
  -----------
  Patch tryCanonicalizeStructToVector to handle split slice tails (#201434)

We choose a vector alloca over a struct alloca when all users of the
alloca are memory or lifetime intrinsics. But we only accounted for
slices that start in the corresponding partition. We have to also check
that all split slice tails overlapping the partition are memory or
lifetime intrinsics

I also updated the `PassRegistry.def` to include the new pass option
because we forgot to add that.



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