[all-commits] [llvm/llvm-project] 7abb5f: [DWARF] Make sure file entry for artificial functi...

[Paul T Robinson via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7abb5fc618cec66841a8280d2a099a4c9c8cb91b
      https://github.com/llvm/llvm-project/commit/7abb5fc618cec66841a8280d2a099a4c9c8cb91b
  Author: Paul Robinson <paul.robinson at sony.com>
  Date:   2023-07-24 (Mon, 24 Jul 2023)

  Changed paths:
    M clang/lib/CodeGen/CGDebugInfo.h
    M clang/test/CodeGenCXX/debug-info-function-context.cpp

  Log Message:
  -----------
  [DWARF] Make sure file entry for artificial functions has an MD5 checksum

The DIFile cache was keyed on a string pointer instead of string content,
which was causing misses and resulted in an entry without a checksum.
In DWARF v5 if any checksum is missing, we can't write any to the output
file, so this had consequences.

Fixes https://github.com/llvm/llvm-project/issues/63955

Differential revision: https://reviews.llvm.org/D155991