https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90181
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |WONTFIX
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I think the manual is clear (when it comes to the following questions:
will r_a7 occupy the a7 register for the entire function (suppose there is more
C code around it)? What if call_ecall gets inlined into a larger function?
)
https://gcc.gnu.org/onlinedocs/gcc/Local-Register-Variables.html#Local-Register-Variables
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).
