[Bug target/77333] Incorrect stack adjust in epilogue when targeting i686-w64-mingw32

[jamborm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77333

--- Comment #20 from Martin Jambor <jamborm at gcc dot gnu.org> ---
Created attachment 40864
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40864&action=edit
A small self-contained testcase

I have finally managed to put together a small self-contained
testcase.  Compile with -O2 -fno-ipa-sra to trigger the bug (under
Wine), add -fno-ipa-cp to make it disappear.