[PATCH] D117616: GCC ABI Compatibility: Preserve alignment of non-pod members in packed structs

Thu May 12 14:41:57 PDT 2022

MatzeB added inline comments.
Herald added a project: All.

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Comment at: clang/docs/ReleaseNotes.rst:239-243
+- GCC doesn't pack non-POD members in packed structs unless the packed
+  attribute is also specified on the member. Clang historically did perform
+  such packing. Clang now matches the gcc behavior (except on Darwin and PS4).
+  You can switch back to the old ABI behavior with the flag:
+  ``-fclang-abi-compat=13.0``.
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Ugh... The release notes went missing in `main` now:

* We had them in clang-14, but then reverted in the release process of clang-14 so they never showed for clang-14.
* In `main` we removed all release nodes when going from 14->15.

So this notice is effectively lost now...

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D117616/new/

https://reviews.llvm.org/D117616