re PR target/70322 (STV doesn't optimize andn)

re PR target/70322 (STV doesn't optimize andn)

	PR target/70322
	* config/i386/i386.c (dimode_scalar_to_vector_candidate_p): Handle
	NOT.
	(dimode_scalar_chain::compute_convert_gain): Likewise.
	(dimode_scalar_chain::convert_insn): Likewise.
	* config/i386/i386.md (*one_cmpldi2_doubleword): New
	define_insn_and_split.
	(one_cmpl<mode>2): Use SWIM1248x iterator instead of SWIM.

	* gcc.target/i386/pr70322-1.c: New test.
	* gcc.target/i386/pr70322-2.c: New test.
	* gcc.target/i386/pr70322-3.c: New test.

From-SVN: r243195