[Bug rtl-optimization/64815] ICE caused by volatile_refs_p doesn't skip NULL operand

[terry.guo at arm dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64815

Terry Guo <terry.guo at arm dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #6 from Terry Guo <terry.guo at arm dot com> ---
I am calling the function in wrong way. Thanks Andrew, now everything is ok.