[Bug target/86236] Stack alignment prologue clobbers %edi for fastcall functions with global register variable

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86236

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Though, obviously with -m32 we are getting -><- this close to getting rid out
of all usable registers with fastcall, static chain and drap, especially if
also -fpic.