https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78519
--- Comment #3 from Martin Sebor <msebor at gcc dot gnu.org> --- Author: msebor Date: Thu Dec 15 04:35:31 2016 New Revision: 243684 URL: https://gcc.gnu.org/viewcvs?rev=243684&root=gcc&view=rev Log: PR middle-end/78519 - missing warning for sprintf %s with null pointer gcc/ChangeLog: PR middle-end/78519 * gimple-ssa-sprintf.c (format_string): Handle null pointers. (format_directive): Diagnose null pointer arguments. (pass_sprintf_length::handle_gimple_call): Diagnose null destination pointers. Correct location of null format string in diagnostics. gcc/testsuite/ChangeLog: PR middle-end/78519 * gcc.dg/tree-ssa/builtin-sprintf-warn-7.c: New test. Added: trunk/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-8.c Modified: trunk/gcc/ChangeLog trunk/gcc/gimple-ssa-sprintf.c trunk/gcc/testsuite/ChangeLog