re PR rtl-optimization/71673 (FAIL: c-c++-common/torture/builtin-arith-overflow-p-19.c -O2  (internal compiler error))

	PR rtl-optimization/71673
	* internal-fn.c (expand_arith_overflow_result_store): Use
	OPTAB_LIB_WIDEN instead of OPTAB_DIRECT as last argument to
	expand_simple_binop.

From-SVN: r237815