[all-commits] [llvm/llvm-project] 954af7: [PGO] Skip optimizing probes that don't fit. (#70875)

[Davide Italiano via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 954af75cebbdad6de747b1491bd83a204c8b0d6f
      https://github.com/llvm/llvm-project/commit/954af75cebbdad6de747b1491bd83a204c8b0d6f
  Author: Davide Italiano <dcci at users.noreply.github.com>
  Date:   2023-10-31 (Tue, 31 Oct 2023)

  Changed paths:
    M llvm/lib/Transforms/IPO/SampleProfileProbe.cpp

  Log Message:
  -----------
  [PGO] Skip optimizing probes that don't fit. (#70875)

The discriminator can only pack 16 bits, so anything exceeding that
value will cause the packing code to crash. Emit a diagnostic and skip
the optimization instead.