Move global range code to value-query.cc.

This patch moves all the global range code from gimple-range.cc into
value-query.cc.  It also moves get_range_info and get_ptr_nonnull from
tree-ssanames.c into their only uses, and removes external access to them.

gcc/ChangeLog:

	* gimple-range.cc (get_range_global): Move to value-query.cc.
	(gimple_range_global): Same.
	(get_global_range_query): Same.
	(global_range_query::range_of_expr): Same.
	* gimple-range.h (class global_range_query): Move to
	value-query.h.
	(gimple_range_global): Same.
	* tree-ssanames.c (get_range_info): Move to value-query.cc.
	(get_ptr_nonnull): Same.
	* tree-ssanames.h (get_range_info): Remove.
	(get_ptr_nonnull): Remove.
	* value-query.cc (get_ssa_name_range_info): Move from
	tree-ssanames.c.
	(get_ssa_name_ptr_info_nonnull): Same.
	(get_range_global): Move from gimple-range.cc.
	(gimple_range_global): Same.
	(get_global_range_query): Same.
	(global_range_query::range_of_expr): Same.
	* value-query.h (class global_range_query): Move from
	gimple-range.h.
	(gimple_range_global): Same.

1 files changed, 11 insertions, 0 deletions

diff --git a/gcc/value-query.h b/gcc/value-query.h
index 5eff931..97da663 100644
--- a/gcc/value-query.h
+++ b/gcc/value-query.h
@@ -105,4 +105,15 @@ private:
   class equiv_allocator *equiv_alloc;
 };
 
+// Global ranges for SSA names using SSA_NAME_RANGE_INFO.
+
+class global_range_query : public range_query
+{
+public:
+  bool range_of_expr (irange &r, tree expr, gimple * = NULL) OVERRIDE;
+};
+
+extern global_range_query global_ranges;
+extern value_range gimple_range_global (tree name);
+
 #endif // GCC_QUERY_H