PR target/29777

	* config/i386/sse.md (smulv8hi3_highpart): Change from define_insn
	to define_expand.
	(umulv8hi3_highpart): Ditto.
	(vec_widen_smult_hi_v8hi): New expander.
	(vec_widen_smult_lo_v8hi): Ditto.

testsuite/ChangeLog:

	PR target/29777
        * lib/target-supports.exp (vect_widen_mult_hi_to_si): Add i?86-*-*
	and x86_64-*-* targets.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@118649 138bc75d-0d04-0410-961f-82ee72b054a4