[all-commits] [llvm/llvm-project] 6d0cfb: [PPC] Implement `areInlineCompatible` (#126562)

[Henry Jiang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6d0cfbc9c0e25f9e652f5f8b3bca2d7a0768619e
      https://github.com/llvm/llvm-project/commit/6d0cfbc9c0e25f9e652f5f8b3bca2d7a0768619e
  Author: Henry Jiang <h243jian at uwaterloo.ca>
  Date:   2025-02-24 (Mon, 24 Feb 2025)

  Changed paths:
    M llvm/lib/Target/PowerPC/PPCTargetTransformInfo.cpp
    M llvm/lib/Target/PowerPC/PPCTargetTransformInfo.h
    A llvm/test/Transforms/Inline/PowerPC/inline-target-attr.ll

  Log Message:
  -----------
  [PPC] Implement `areInlineCompatible` (#126562)

After the default implementation swap from
https://github.com/llvm/llvm-project/pull/117493, where
`areInlineCompatible` checks if the callee features are a subset of
caller features. This is not a safe assumption in general on PPC. We
fallback to check for strict feature set equality for now, and see what
improvements we can make.



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