Martin Storsjö aeb4907ed6 [libcxxabi] Use the right calling convention for exception destructors on i386 Windows
On Windows on i386, C++ member functions use a different calling
convention (`__thiscall`) than the default one for regular functions
(`__cdecl`). (On Windows on architectures other than i386, both calling
convention attributes are no-ops.)

This matches how libstdc++ declares these types.

This fixes the std/thread/futures/futures.{shared,unique}_future/dtor.pass.cpp
tests on i386 mingw.

Differential Revision: https://reviews.llvm.org/D124990
2022-05-05 23:21:18 +03:00
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