* loop-unswitch.c (unswitch_loop): Update arguments of

	duplicate_loop_to_header_edge call.
	* tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Ditto.
	* loop-unroll.c (peel_loop_completely, unroll_loop_constant_iterations,
	unroll_loop_runtime_iterations, peel_loop_simple, unroll_loop_stupid):
	Ditto.
	* cfgloopmanip.c (loop_version): Ditto.
	(duplicate_loop_to_header_edge): Change
	type of to_remove to VEC(edge), remove n_to_remove argument.
	* tree-ssa-loop-manip.c (tree_duplicate_loop_to_header_edge):
	Change type of to_remove to VEC(edge), remove n_to_remove argument.
	(tree_unroll_loop): Update arguments of
	tree_duplicate_loop_to_header_edge call.
	* cfghooks.c (cfg_hook_duplicate_loop_to_header_edge):
	Change type of to_remove to VEC(edge), remove n_to_remove argument.
	* cfghooks.h (struct cfg_hooks): Type of
	cfg_hook_duplicate_loop_to_header_edge changed.
	(cfg_hook_duplicate_loop_to_header_edge): Declaration changed.
	* cfgloop.h (duplicate_loop_to_header_edge): Ditto.
	* tree-flow.h (tree_duplicate_loop_to_header_edge): Ditto.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@120074 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 2 insertions, 7 deletions

diff --git a/gcc/loop-unswitch.c b/gcc/loop-unswitch.c
index 82cf1eaeeeb..38706d174d8 100644
--- a/gcc/loop-unswitch.c
+++ b/gcc/loop-unswitch.c
@@ -410,14 +410,9 @@ unswitch_loop (struct loop *loop, basic_block unswitch_on, rtx cond, rtx cinsn)
   irred_flag = entry->flags & EDGE_IRREDUCIBLE_LOOP;
   entry->flags &= ~EDGE_IRREDUCIBLE_LOOP;
   zero_bitmap = sbitmap_alloc (2);
-  sbitmap_zero (zero_bitmap);
   if (!duplicate_loop_to_header_edge (loop, entry, 1,
-	zero_bitmap, NULL, NULL, NULL, 0))
-    {
-      sbitmap_free (zero_bitmap);
-      return NULL;
-    }
-  sbitmap_free (zero_bitmap);
+			      	      NULL, NULL, NULL, 0))
+    return NULL;
   entry->flags |= irred_flag;
 
   /* Record the block with condition we unswitch on.  */