[all-commits] [llvm/llvm-project] dcf376: [DebugInfo] Make DISubprogram's hashing always pro...

[Augusto Noronha via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: dcf376aae738252fb52a73bcf7f58fd030e15ee2
      https://github.com/llvm/llvm-project/commit/dcf376aae738252fb52a73bcf7f58fd030e15ee2
  Author: Augusto Noronha <augusto2112 at me.com>
  Date:   2024-05-02 (Thu, 02 May 2024)

  Changed paths:
    M llvm/lib/IR/LLVMContextImpl.h
    M llvm/unittests/IR/DebugInfoTest.cpp

  Log Message:
  -----------
  [DebugInfo] Make DISubprogram's hashing always produce the same result (#90770)

A DISubprogram's hashing algorithm takes into account its Scope. A Scope
can be a temporary though which can be replaced later on during
compilation. This means that the hashing algorithm for a DISubprogram
could produce a different hash before/after the Scope has changed. Fix
this by checking the Scope's linkage name instead, which should always
be the same.

rdar://127004707



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