[Bug target/122933] invalid epilogue for x86_64-w64-mingw32

[lh_mouse at 126 dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122933

--- Comment #2 from LIU Hao <lh_mouse at 126 dot com> ---
(In reply to Eric Botcazou from comment #1)
> What about the prologue?  Should it be changed there too?

I think that the prologue should be okay, as it's annotated in assembly by SEH
directives. The epilogue isn't, since the stack unwinder scans machine code for
it.