[all-commits] [llvm/llvm-project] f45981: DAG: Fold bitcast of scalar_to_vector to anyext (#...

[Matt Arsenault via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f4598194b5d65f6bafa987a2e55c46d03c5d0052
      https://github.com/llvm/llvm-project/commit/f4598194b5d65f6bafa987a2e55c46d03c5d0052
  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 (#122660)

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.



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