gcc/testsuite/ChangeLog:

	PR middle-end/79448
	* gcc.dg/tree-ssa/builtin-snprintf-warn-3.c: New test.
	* gcc.dg/tree-ssa/pr79448-2.c: New test.
	* gcc.dg/tree-ssa/pr79448.c: New test.

gcc/ChangeLog:

	PR middle-end/79448
	* gimple-ssa-sprintf.c (format_directive): Avoid issuing INT_MAX
	  warning for strings of unknown length.

From-SVN: r245437