https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87984
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
In fact the warning even mentions this case:
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:
See the part that is surrounded by __.
