Merge in trunk.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/wide-int@207666 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 1 insertions, 13 deletions

diff --git a/gcc/loop-iv.c b/gcc/loop-iv.c
index 822f2fd82af..906c71d84fa 100644
--- a/gcc/loop-iv.c
+++ b/gcc/loop-iv.c
@@ -278,10 +278,6 @@ clear_iv_info (void)
 void
 iv_analysis_loop_init (struct loop *loop)
 {
-  basic_block *body = get_loop_body_in_dom_order (loop), bb;
-  bitmap blocks = BITMAP_ALLOC (NULL);
-  unsigned i;
-
   current_loop = loop;
 
   /* Clear the information from the analysis of the previous loop.  */
@@ -294,11 +290,6 @@ iv_analysis_loop_init (struct loop *loop)
   else
     clear_iv_info ();
 
-  for (i = 0; i < loop->num_nodes; i++)
-    {
-      bb = body[i];
-      bitmap_set_bit (blocks, bb->index);
-    }
   /* Get rid of the ud chains before processing the rescans.  Then add
      the problem back.  */
   df_remove_problem (df_chain);
@@ -306,14 +297,11 @@ iv_analysis_loop_init (struct loop *loop)
   df_set_flags (DF_RD_PRUNE_DEAD_DEFS);
   df_chain_add_problem (DF_UD_CHAIN);
   df_note_add_problem ();
-  df_set_blocks (blocks);
-  df_analyze ();
+  df_analyze_loop (loop);
   if (dump_file)
     df_dump_region (dump_file);
 
   check_iv_ref_table_size ();
-  BITMAP_FREE (blocks);
-  free (body);
 }
 
 /* Finds the definition of REG that dominates loop latch and stores