cfghooks.c (split_block): Fix the information about loop latch.

* cfghooks.c (split_block): Fix the information about loop latch. From-SVN: r126936

cfghooks.c (split_block): Fix the information about loop latch.
* cfghooks.c (split_block): Fix the information about loop latch. From-SVN: r126936
dbdc7f97 · Zdenek Dvorak · Zdenek Dvorak · af0b10e5 · dbdc7f97 · dbdc7f97
Commit dbdc7f97 authored Jul 26, 2007 by Zdenek Dvorak Committed by Zdenek Dvorak Jul 25, 2007
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gcc/ChangeLog
+4 -0

gcc/cfghooks.c
+5 -1

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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
 2007-07-25  Zdenek Dvorak  <dvorakz@suse.cz>

+	* cfghooks.c (split_block): Fix the information about loop latch.
+
+2007-07-25  Zdenek Dvorak  <dvorakz@suse.cz>
+
 	* cfgloopmanip.c (fix_loop_structure): Call force_single_succ_latches.

 2007-07-25  Zdenek Dvorak  <dvorakz@suse.cz>

--- a/gcc/cfghooks.c
+++ b/gcc/cfghooks.c
@@ -432,7 +432,11 @@ split_block (basic_block bb, void *i)
    }

  if (current_loops != NULL)
-    add_bb_to_loop (new_bb, bb->loop_father);
+    {
+      add_bb_to_loop (new_bb, bb->loop_father);
+      if (bb->loop_father->latch == bb)
+	bb->loop_father->latch = new_bb;
+    }

  return make_single_succ_edge (bb, new_bb, EDGE_FALLTHRU);
 }