https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82051
--- Comment #3 from joseph at codesourcery dot com <joseph at codesourcery dot
com> ---
On Thu, 31 Aug 2017, zwzhangwen.zhang at huawei dot com wrote:
> volatile long long f1;
> printf ("g_121.f1=%x\n",g_121.f1);
In addition to the other points people have made about active union
members, %x is not the correct format for long long; use %llx.
