[PATCH] D72959: Relative VTables ABI on Fuchsia

[Roland McGrath via Phabricator via llvm-commits]

mcgrathr added inline comments.


================
Comment at: libcxxabi/src/private_typeinfo.cpp:617
     // Get (dynamic_ptr, dynamic_type) from static_ptr
+#ifndef __Fuchsia__
     void **vtable = *static_cast<void ** const *>(static_ptr);
----------------
ldionne wrote:
> Please introduce a macro that generically expresses that relative vtables are enabled, and explain what it is. You can then enable that macro only on `__Fuchsia__`. I'd like to avoid freely adding platform-specific `#ifdef`s in the code when it's easy to avoid.
I think the libcxxabi change should be separated from the compiler change entirely.
It will need more configuration issues resolved before it usefully lands.
Let's keep this change just for the pure compiler feature.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D72959/new/

https://reviews.llvm.org/D72959