1 files changed, 23 insertions, 0 deletions
diff --git a/gcc/tree-pretty-print.c b/gcc/tree-pretty-print.c
index 32f8ac00d37..09d203fa29b 100644
--- a/gcc/tree-pretty-print.c
+++ b/gcc/tree-pretty-print.c
@@ -2958,6 +2958,29 @@ dump_implicit_edges (pretty_printer *buffer, basic_block bb, int indent,
 {
   edge e;
   edge_iterator ei;
+  tree stmt;
+
+  stmt = last_stmt (bb);
+  if (stmt && TREE_CODE (stmt) == COND_EXPR)
+    {
+      edge true_edge, false_edge;
+
+      /* When we are emitting the code or changing CFG, it is possible that
+	 the edges are not yet created.  When we are using debug_bb in such
+	 a situation, we do not want it to crash.  */
+      if (EDGE_COUNT (bb->succs) != 2)
+	return;
+      extract_true_false_edges_from_block (bb, &true_edge, &false_edge);
+
+      INDENT (indent + 2);
+      pp_cfg_jump (buffer, true_edge->dest);
+      newline_and_indent (buffer, indent);
+      pp_string (buffer, "else");
+      newline_and_indent (buffer, indent + 2);
+      pp_cfg_jump (buffer, false_edge->dest);
+      pp_newline (buffer);
+      return;
+    }
 
   /* If there is a fallthru edge, we may need to add an artificial goto to the
      dump.  */