[all-commits] [llvm/llvm-project] 068a62: AMDGPU: Add baseline test for bitcast of scalar_to...

[Matt Arsenault via All-commits]

  Branch: refs/heads/users/arsenm/dag/fold-bitcast-scalar-to-vector-of-int
  Home:   https://github.com/llvm/llvm-project
  Commit: 068a62296aa569db6eaa53e2ed2918982691579c
      https://github.com/llvm/llvm-project/commit/068a62296aa569db6eaa53e2ed2918982691579c
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2025-01-13 (Mon, 13 Jan 2025)

  Changed paths:
    M llvm/test/CodeGen/AMDGPU/scalar_to_vector.ll

  Log Message:
  -----------
  AMDGPU: Add baseline test for bitcast of scalar_to_vector combine


  Commit: 78675d11d67e343b29a6cdc13f2f7337dc664cf4
      https://github.com/llvm/llvm-project/commit/78675d11d67e343b29a6cdc13f2f7337dc664cf4
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2025-01-13 (Mon, 13 Jan 2025)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
    M llvm/test/CodeGen/AMDGPU/scalar_to_vector.ll

  Log Message:
  -----------
  DAG: Fold bitcast of scalar_to_vector to anyext

scalar_to_vector is difficult to make appear and test,
but I found one case where this makes an observable difference.
It fires more often than this in the test suite, but most of them
have no net result in the final code. This helps reduce regressions
in a future commit.


Compare: https://github.com/llvm/llvm-project/compare/01094500d7fa...78675d11d67e

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