tree-ssa-coalesce.c (struct ssa_conflicts_d): Make contents of this a VEC and add...

tree-ssa-coalesce.c (struct ssa_conflicts_d): Make contents of this a VEC and add a bitmap obstack.

	* tree-ssa-coalesce.c (struct ssa_conflicts_d): Make contents
	of this a VEC and add a bitmap obstack.
	(ssa_conflicts_new): Allocate the obstack and grow the VEC cleared
	to the right size.
	(ssa_conflicts_delete): Free the VEC and release the obstack.
	(ssa_conflicts_test_p, ssa_conflicts_test_p, ssa_conflicts_add_one,
	ssa_conflicts_merge, ssa_conflicts_dump): Update for above changes.
	(truct live_track_d): Add another bitmap obstack here.
	(new_live_track): Initialize it and use it for all bitmaps.
	(delete_live_track): Don't free the bitmaps one at a time, just
	release the obstack.
	(create_outofssa_var_map): Fix to conform to GCC code style rules.

From-SVN: r190589