[all-commits] [llvm/llvm-project] a05762: [NFC][AMDGPU] Add a test that can cause backend crash

[Shilei Tian via All-commits]

  Branch: refs/heads/users/shiltian/add-a-crash-test-from-downstream
  Home:   https://github.com/llvm/llvm-project
  Commit: a05762b5146831197e9b39f3552666d32c536a85
      https://github.com/llvm/llvm-project/commit/a05762b5146831197e9b39f3552666d32c536a85
  Author: Shilei Tian <i at tianshilei.me>
  Date:   2025-06-25 (Wed, 25 Jun 2025)

  Changed paths:
    A llvm/test/CodeGen/AMDGPU/undef-handling-crash-in-ra.ll

  Log Message:
  -----------
  [NFC][AMDGPU] Add a test that can cause backend crash

The crash was reported downstream, but it has been fixed in upstream by 2bada417c1f06361f4b7a992224bfb8e32d55ca6.
This PR is to add the test case upstream. Note that there are some UBs in the
IRs, such as load/store from/to a nullptr. The crash would not be reproducible
if any of them is changed to something else.



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