Add outgoing range vector calcualtion API

Provide a GORI API which can produce a range vector for all outgoing
ranges on an edge without any of the other infratructure.

	* gimple-range-gori.cc (gori_stmt_info::gori_stmt_info): New.
	(gori_calc_operands): New.
	(gori_on_edge): New.
	(gori_name_helper): New.
	(gori_name_on_edge): New.
	* gimple-range-gori.h (gori_on_edge): New prototype.
	(gori_name_on_edge): New prototype.

1 files changed, 15 insertions, 0 deletions

diff --git a/gcc/gimple-range-gori.h b/gcc/gimple-range-gori.h
index b8d97d1..e75ade0 100644
--- a/gcc/gimple-range-gori.h
+++ b/gcc/gimple-range-gori.h
@@ -208,6 +208,21 @@ private:
   int m_not_executable_flag;
 };
 
+// These APIs are used to query GORI if there are ranges generated on an edge.
+// GORI_ON_EDGE is used to get all the ranges at once (returned in an
+// ssa_cache structure).
+// GORI_NAME_ON_EDGE  is used to simply ask if NAME has a range on edge E
+
+// Fill ssa-cache R with any outgoing ranges on edge E, using OGR and QUERY.
+bool gori_on_edge (class ssa_cache &r, edge e,
+		   range_query *query = NULL,
+		   gimple_outgoing_range *ogr = NULL);
+
+// Query if NAME has an outgoing range on edge E, and return it in R if so.
+// Note this doesnt use ranger, its a static GORI analysis of the range in
+// block e->src and is based on any branch at the exit of that block.
+bool gori_name_on_edge (vrange &r, tree name, edge e, range_query *q = NULL);
+
 // For each name that is an import into BB's exports..
 #define FOR_EACH_GORI_IMPORT_NAME(gori, bb, name)			\
   for (gori_export_iterator iter ((gori).imports ((bb)));	\