re PR tree-optimization/46723 (internal compiler error: in get_initial_def_for_induction, at tree-vect-loop.c:2431)

2010-12-02  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/46723
	* tree-vect-loop.c (get_initial_def_for_induction): Strip
	conversions from the induction evolution and apply it to
	the result instead.
	* tree-vect-stmts.c (vect_get_vec_def_for_operand): Handle
	assigns for induction defs.

	* gcc.dg/torture/pr46723.c: New testcase.

From-SVN: r167377