re PR c/52977 (internal compiler error: Segmentation fault with `-x c-header' or `-x cxx-header' option)

2012-04-16  Richard Guenther  <rguenther@suse.de>

	PR middle-end/52977
	* tree.h (VECTOR_CST_NELTS): Adjust.
	(struct tree_vector): Add explicit length field.
	(make_vector_stat): Declare.
	(make_vector): Define.
	* tree.c (make_vector_stat): New function.
	(build_vector_stat): Use it.
	* tree-streamer-in.c (streamer_alloc_tree): Likewise.

From-SVN: r186494