llvm-project

b01cddee - [Clang][Cygwin] Cygwin x86_64 should accept __stdcall (#158385)

[Clang][Cygwin] Cygwin x86_64 should accept __stdcall (#158385) Cygwin should support calling convention attributes `__cdecl`, `__stdcall`, `__thiscall`, and `__fastcall`, even though they have no effect in x86_64, as done in MinGW. Originally reported in https://cygwin.com/pipermail/cygwin/2025-September/258782.html --------- Co-authored-by: Jeremy Drake <github@jdrake.com>