[all-commits] [llvm/llvm-project] 3bf33e: [GlobalISel] Fold bitcast(undef) to undef. (#111491)

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3bf33ecec8f0501f6b370bb2bc6ef01f4f98eaa2
      https://github.com/llvm/llvm-project/commit/3bf33ecec8f0501f6b370bb2bc6ef01f4f98eaa2
  Author: David Green <david.green at arm.com>
  Date:   2024-10-09 (Wed, 09 Oct 2024)

  Changed paths:
    M llvm/include/llvm/Target/GlobalISel/Combine.td
    M llvm/test/CodeGen/AArch64/concat-vector.ll

  Log Message:
  -----------
  [GlobalISel] Fold bitcast(undef) to undef. (#111491)

As with other operations such as trunc and fp converts, it should be
valid to convert bitcast(undef) to undef.



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