PR target/71389
	* config/i386/i386.c (ix86_avx256_split_vector_move_misalign):
	Copy op1 RTX to avoid invalid sharing.
	(ix86_expand_vector_move_misalign): Ditto.

testsuite/ChangeLog:

	PR target/71389
	* g++.dg/pr71389.C: New test.

From-SVN: r237111