[all-commits] [llvm/llvm-project] eae2d4: [Windows Itanium][PS4] handle dllimport/export w.r...

[bd1976bris via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: eae2d4b8520c768291dcff2169b78486af324d17
      https://github.com/llvm/llvm-project/commit/eae2d4b8520c768291dcff2169b78486af324d17
  Author: Ben Dunbobbin <Ben.Dunbobbin at sony.com>
  Date:   2021-04-13 (Tue, 13 Apr 2021)

  Changed paths:
    M clang/include/clang/Basic/TargetInfo.h
    M clang/lib/AST/RecordLayoutBuilder.cpp
    M clang/lib/CodeGen/ItaniumCXXABI.cpp
    A clang/test/CodeGenCXX/ps4-dllstorage-vtable-rtti.cpp

  Log Message:
  -----------
  [Windows Itanium][PS4] handle dllimport/export w.r.t vtables/rtti

The existing Windows Itanium patches for dllimport/export
behaviour w.r.t vtables/rtti can't be adopted for PS4 due to
backwards compatibility reasons (see comments on
https://reviews.llvm.org/D90299).

This commit adds our PS4 scheme for this to Clang.

Differential Revision: https://reviews.llvm.org/D93203