re PR tree-optimization/79327 (wrong code at -O2 and -fprintf-return-value)

re PR tree-optimization/79327 (wrong code at -O2 and -fprintf-return-value)

	PR tree-optimization/79327
	* gimple-ssa-sprintf.c (adjust_range_for_overflow): If returning
	true, always set *argmin and *argmax to TYPE_{MIN,MAX}_VALUE of
	dirtype.
	(format_integer): Use wide_int_to_tree instead of build_int_cst
	+ to_?hwi.  If argmin is NULL, just set argmin and argmax to
	TYPE_{MIN,MAX}_VALUE of argtype.  Simplify and fix computation
	of shortest and longest sequence.

	* gcc.dg/tree-ssa/pr79327.c: New test.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-1.c
	(test_sprintf_chk_hh_nonconst): Don't expect 2 bogus warnings.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-3.c
	(test_sprintf_chk_range_schar): Adjust dg-message.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-12.c: New test.
	* gcc.c-torture/execute/pr79327.c: New test.

Co-Authored-By: Martin Sebor <msebor@redhat.com>
From-SVN: r245166