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

John McCall via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Fri Aug 25 12:58:29 PDT 2017

rjmccall added a comment.

The only thing I would say here is that, as a platform vendor, I would like the ability to opt in to ABI fixes that aren't in my base-line version.  In particular, we're generally more aggressive about taking C++ ABI fixes on Darwin when there's a strong argument that the impact is likely to be low, like for some of these indirect-ABI cases that only make a difference for classes with e.g. only deleted copy/move constructors but a trivial destructor.



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