2011-05-27  Andrew Pinski  <pinskia@gmail.com>

	PR middle-end/48981
	* gengtype.c (vec_prefix_type): New function.
	(note_def_vec): Use vec_prefix_type and change the length
	attribute to be based on the prefix.
	* vec.c: Include coretypes.h before vec.h.
	(struct vec_prefix): Remove.
	(vec_gc_p_reserve): Change the offsetof to sizeof.
	(vec_gc_p_reserve_exact): Likewise.
	(vec_heap_p_reserve): Likewise.
	(vec_heap_p_reserve_exact): Likewise.
	(vec_stack_o_reserve_1): Copy from +1 instead of from vec.
	(vec_stack_p_reserve): Change the offsetof to sizeof.
	(vec_stack_p_reserve_exact): Likewise.
	* vec.h (struct vec_prefix): New struct definition.
	(VEC_T(T,B)): Use vec_prefix instead of having num/alloc fields.
	(VEC_T_GTY(T,B)): Likewise.
	(DEF_VEC_FUNC_P(T)): Use prefix field.
	(DEF_VEC_NONALLOC_FUNCS_O(T,A)): Likewise.
	(DEF_VEC_NONALLOC_FUNCS_I(T,A)): Likewise.

From-SVN: r174359