[all-commits] [llvm/llvm-project] efef83: [lld][InstrProf] Skip BP ordering input sections w...

[Ellis Hoag via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: efef83e11d6b5f47c624465006bbea4cbb8a2526
      https://github.com/llvm/llvm-project/commit/efef83e11d6b5f47c624465006bbea4cbb8a2526
  Author: Ellis Hoag <ellis.sparky.hoag at gmail.com>
  Date:   2025-04-29 (Tue, 29 Apr 2025)

  Changed paths:
    M lld/MachO/BPSectionOrderer.cpp
    M lld/test/MachO/bp-section-orderer.s

  Log Message:
  -----------
  [lld][InstrProf] Skip BP ordering input sections with null data (#137906)

In MachO, `.bss` `isec`s have a length, but point to null. This causes
Balanced Partitioning to crash on these inputs.

This code was in the original implementation, but was removed in
https://github.com/llvm/llvm-project/pull/124482/files#diff-b2aac8833d29d297ae5ada1b36eb4e88f53691fd91df954c24e0c264f3131d4aL27



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