tree-parloops.c (take_address_of, [...]): Make them work on a region of code…

tree-parloops.c (take_address_of, [...]): Make them work on a region of code delimited by two edges in the CFG.

2008-04-22  Antoniu Pop  <antoniu.pop@gmail.com>
            Sebastian Pop  <sebastian.pop@amd.com>

	* tree-parloops.c (take_address_of, eliminate_local_variables_1,
	eliminate_local_variables_stmt, eliminate_local_variables,
	separate_decls_in_loop_name, separate_decls_in_loop_stmt,
	separate_decls_in_loop, gen_parallel_loop): Make them work on a region
	of code delimited by two edges in the CFG.
	(separate_decls_in_loop_name): Renamed separate_decls_in_region_name.
	(separate_decls_in_loop_stmt): Renamed separate_decls_in_region_stmt.
	(separate_decls_in_loop): Renamed separate_decls_in_region.  Isolate 
	the case of parallelisation of reductions.
	(expr_invariant_in_region_p): New.

	* tree-flow.h (gather_blocks_in_sese_region): Declared.
	* tree-cfg.c (gather_blocks_in_sese_region): Extern.


Co-Authored-By: Sebastian Pop <sebastian.pop@amd.com>

From-SVN: r134632

gcc/ChangeLog

+2008-04-22  Antoniu Pop  <antoniu.pop@gmail.com>
+            Sebastian Pop  <sebastian.pop@amd.com>
+
+	* tree-parloops.c (take_address_of, eliminate_local_variables_1,
+	eliminate_local_variables_stmt, eliminate_local_variables,
+	separate_decls_in_loop_name, separate_decls_in_loop_stmt,
+	separate_decls_in_loop, gen_parallel_loop): Make them work on a region
+	of code delimited by two edges in the CFG.
+	(separate_decls_in_loop_name): Renamed separate_decls_in_region_name.
+	(separate_decls_in_loop_stmt): Renamed separate_decls_in_region_stmt.
+	(separate_decls_in_loop): Renamed separate_decls_in_region.  Isolate 
+	the case of parallelisation of reductions.
+	(expr_invariant_in_region_p): New.
+
+	* tree-flow.h (gather_blocks_in_sese_region): Declared.
+	* tree-cfg.c (gather_blocks_in_sese_region): Extern.
+
 2008-04-24  Ira Rosen  <irar@il.ibm.com>
 	Richard Guenther  <rguenther@suse.de>
 

gcc/tree-cfg.c

@@ -5505,7 +5505,7 @@ DEF_VEC_ALLOC_P(basic_block,heap);
    adding blocks when the dominator traversal reaches EXIT.  This
    function silently assumes that ENTRY strictly dominates EXIT.  */
 
-static void
+void
 gather_blocks_in_sese_region (basic_block entry, basic_block exit,
 			      VEC(basic_block,heap) **bbs_p)
 {

gcc/tree-flow.h

@@ -771,6 +771,8 @@ extern bool tree_duplicate_sese_region (edge, edge, basic_block *, unsigned,
 					basic_block *);
 extern bool tree_duplicate_sese_tail (edge, edge, basic_block *, unsigned,
 				      basic_block *);
+extern void gather_blocks_in_sese_region (basic_block entry, basic_block exit,
+					  VEC(basic_block,heap) **bbs_p);
 extern void add_phi_args_after_copy_bb (basic_block);
 extern void add_phi_args_after_copy (basic_block *, unsigned, edge);
 extern bool tree_purge_dead_abnormal_call_edges (basic_block);