[Bug target/69140] stack alignment + O1 breaks with Microsoft ABI

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69140

--- Comment #10 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
Created attachment 37231
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37231&action=edit
Reduced testcase

To be compiled with -O2 -mincoming-stack-boundary=3