[PATCH] D36501: Add flag to request Clang is ABI-compatible with older versions of itself

[Richard Smith - zygoloid via Phabricator via cfe-commits]

rsmith updated this revision to Diff 112733.

Repository:
  rL LLVM

https://reviews.llvm.org/D36501

Files:
  include/clang/Driver/Options.td
  include/clang/Frontend/CodeGenOptions.def
  include/clang/Frontend/CodeGenOptions.h
  lib/CodeGen/ABIInfo.h
  lib/CodeGen/CodeGenTypes.cpp
  lib/CodeGen/CodeGenTypes.h
  lib/CodeGen/ItaniumCXXABI.cpp
  lib/CodeGen/TargetInfo.cpp
  lib/Driver/ToolChains/Clang.cpp
  lib/Frontend/CompilerInvocation.cpp
  test/CodeGenCXX/clang-abi-compat.cpp
  test/CodeGenCXX/uncopyable-args.cpp
  test/Driver/flags.c
  test/Frontend/clang-abi-compat.cpp

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