X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fpretty-print.c;h=b611ec985167c629258d885d7741137b1233d963;hb=a6ccab35ba91a0dec065545991e0d264b4597025;hp=35dca7ca68cfab40a2431e39c4a62537af365929;hpb=715b4b24e6354d9ca68dc31bb0815ecb369b464b;p=pf3gnuchains%2Fgcc-fork.git

diff --git a/gcc/pretty-print.c b/gcc/pretty-print.c
index 35dca7ca68c..b611ec98516 100644
--- a/gcc/pretty-print.c
+++ b/gcc/pretty-print.c
@@ -1,5 +1,5 @@
 /* Various declarations for language-independent pretty-print subroutines.
-   Copyright (C) 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
    Contributed by Gabriel Dos Reis <gdr@integrable-solutions.net>
 
 This file is part of GCC.
@@ -501,7 +501,9 @@ pp_base_format (pretty_printer *pp, text_info *text)
 	      {
 		tree ao = BLOCK_ABSTRACT_ORIGIN (block);
 
-		while (TREE_CODE (ao) == BLOCK && BLOCK_ABSTRACT_ORIGIN (ao))
+		while (TREE_CODE (ao) == BLOCK
+		       && BLOCK_ABSTRACT_ORIGIN (ao)
+		       && BLOCK_ABSTRACT_ORIGIN (ao) != ao)
 		  ao = BLOCK_ABSTRACT_ORIGIN (ao);
 
 		if (TREE_CODE (ao) == FUNCTION_DECL)