[Bug tree-optimization/84468] [8 Regression] bogus -Wstringop-truncation despite assignment after conditional strncpy

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84468

--- Comment #12 from Martin Sebor <msebor at gcc dot gnu.org> ---
Yes, all the relevant tests pass with the patch.  There is no warning for
either the test case in comment #0 or the one in comment #11.  The change from
v1 of the patch is just the addition of test for null to avoid the ICE.