PR tree-optimization/89998
	* gimple-ssa-sprintf.c (try_substitute_return_value): Use lhs type
	instead of integer_type_node if possible, don't add ranges if return
	type is not compatible with int.
	* gimple-fold.c (gimple_fold_builtin_sprintf,
	gimple_fold_builtin_snprintf): Use lhs type instead of hardcoded
	integer_type_node.

	* gcc.c-torture/compile/pr89998-1.c: New test.
	* gcc.c-torture/compile/pr89998-2.c: New test.

From-SVN: r270224