[all-commits] [llvm/llvm-project] c50415: [AArch64] Do not promote scalable constants to glo...

[Momchil Velikov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c50415bb82a740426a5559ff7f1e350f394e9fcf
      https://github.com/llvm/llvm-project/commit/c50415bb82a740426a5559ff7f1e350f394e9fcf
  Author: Momchil Velikov <momchil.velikov at arm.com>
  Date:   2025-07-07 (Mon, 07 Jul 2025)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64PromoteConstant.cpp
    A llvm/test/CodeGen/AArch64/no-promote-scalabale-const-to-global.ll

  Log Message:
  -----------
  [AArch64] Do not promote scalable constants to global variables (#146926)

Following
https://github.com/llvm/llvm-project/commit/878d3594ed74cd1153bc5cba2cb7a449702cdf34
IREE/MLIR started generating values like

    [<vscale x 4 x float> zeroinitializer, <vscale x 4 x float> poison]

which then LLVM promoted to global variables in `AArch64PromoteConstant` pass.
This patch prevents it by explicitly checking the type of the promotion candidate.



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