[PATCH] D146225: [AMDGPU] Handle memset users in PromoteAlloca

[Pierre van Houtryve via Phabricator via llvm-commits]

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Allows allocas with memset users to be promoted.

This is intended to prevent patterns such as `memset(&alloca, 0, sizeof(alloca))` (which I think can be emitted by frontends) from preventing a vectorization of allocas.

Fixes SWDEV-388784


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D146225

Files:
  llvm/lib/Target/AMDGPU/AMDGPUPromoteAlloca.cpp
  llvm/test/CodeGen/AMDGPU/promote-alloca-memset.ll

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