[all-commits] [llvm/llvm-project] 8a3d8f: [AArch64][GlobalISel] Fail legalization for unknow...

[David Green via All-commits]

  Branch: refs/heads/release/18.x
  Home:   https://github.com/llvm/llvm-project
  Commit: 8a3d8f0c2531877c84203298a979419a2ba652ee
      https://github.com/llvm/llvm-project/commit/8a3d8f0c2531877c84203298a979419a2ba652ee
  Author: David Green <david.green at arm.com>
  Date:   2024-02-17 (Sat, 17 Feb 2024)

  Changed paths:
    M llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
    A llvm/test/CodeGen/AArch64/win64-fpowi.ll

  Log Message:
  -----------
  [AArch64][GlobalISel] Fail legalization for unknown libcalls. (#81873)

If, like powi on windows, the libcall is unavailable we should fall back
to SDAG. Currently we try and generate a call to "".

(cherry picked from commit 47c65cf62d06add9f55a77c9d45390fa3b986fc5)



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