[Bug rtl-optimization/127244] [x86-64] asm "=rm" output operand spilled through stack slot unnecessarily when result is live across a call

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127244

--- Comment #2 from Drea Pinski <pinskia at gcc dot gnu.org> ---
The question becomes should the constraint on this inline assembly be "=r,m" or
"=rm".  The former gives the decent code.