PR tree-optimization/92618
	* tree-ssa-reassoc.c (v_info): Change from auto_vec to a struct
	containing the auto_vec and a tree.
	(undistribute_bitref_for_vector): Handle the case when element type
	of vec is not the same as type of the BIT_FIELD_REF.  Formatting
	fixes.

	* gcc.c-torture/compile/pr92618.c: New test.
	* gcc.c-torture/execute/pr92618.c: New test.

From-SVN: r278626