PR target/9348
	* expr.c (expand_expr_real) <MULT_EXPR>:  When performing widening
	multiplies with a multiplication of the wrong signedness, its the
	signedness of the multiplication that we've performed that needs to
	be passed to expand_mult_highpart_adjust.  Avoid emitting a nop-move
	if expand_mult_highpart_adjust places the result in target.

	* gcc.c-torture/execute/multdi-1.c: New test case.

From-SVN: r77192