[Bug c/126552] const-qualified local register variable used as an asm operand is silently discarded

[schwab--- via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126552

--- Comment #5 from Andreas Schwab <sch...@linux-m68k.org> ---
Why does this use the "f" constraint when it wants an address register?