[PATCH] D79719: [AIX] Implement AIX special alignment rule about double/long double

[Xiangling Liao via Phabricator via cfe-commits]

Xiangling_L created this revision.
Xiangling_L added reviewers: hubert.reinterpretcast, jasonliu, sfertile, cebowleratibm.
Xiangling_L added a project: LLVM.
Herald added subscribers: cfe-commits, kbarton, nemanjai.
Herald added a project: clang.

Implement AIX special alignment rule by recursively checking if the
'real' first member is a double/long double. If yes, then this member
should be naturally aligned to 8 rather than 4.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D79719

Files:
  clang/include/clang/AST/ASTContext.h
  clang/include/clang/AST/RecordLayout.h
  clang/lib/AST/ASTContext.cpp
  clang/lib/AST/RecordLayout.cpp
  clang/lib/AST/RecordLayoutBuilder.cpp
  clang/lib/Basic/Targets/PPC.h
  clang/test/Layout/aix-double-struct-member.cpp
  clang/test/Layout/aix-no-unique-address-with-double.cpp
  clang/test/Layout/aix-virtual-function-and-base-with-double.cpp

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