[Bug inline-asm/87978] Local Register Variables Have No Effect When There is A Call Statement Between

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87978

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Warning: In the above example, be aware that a register (for example r0) can be
call-clobbered by subsequent code, including function calls and library calls
for arithmetic operators on other variables (for example the initialization of
p2). In this case, use temporary variables for expressions between the register
assignments: