re PR target/52999 (ICE, segmentation fault in c_tree_printer)

	PR middle-end/52999
	* varasm.c (get_section): Don't ICE for section conflicts with
	built-in section kinds.

From-SVN: r186741

gcc/ChangeLog

+2012-04-24  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/52999
+	* varasm.c (get_section): Don't ICE for section conflicts with
+	built-in section kinds.
+
 2012-04-23  DJ Delorie  <dj@redhat.com>
 
 	* config/s390/s390.h (LINK_SPEC): Remove, no longer needed.

gcc/varasm.c

 /* Output variables, constants and external declarations, for GNU compiler.
    Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997,
    1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
-   2010, 2011  Free Software Foundation, Inc.
+   2010, 2011, 2012  Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -314,11 +314,16 @@ get_section (const char *name, unsigned int flags, tree decl)
 	  if (decl == 0)
 	    decl = sect->named.decl;
 	  gcc_assert (decl);
-	  error ("%+D causes a section type conflict with %D", 
-			decl, sect->named.decl);
-	  if (decl != sect->named.decl)
-            inform (DECL_SOURCE_LOCATION (sect->named.decl), 
-		    "%qD was declared here", sect->named.decl);
+	  if (sect->named.decl == NULL)
+	    error ("%+D causes a section type conflict", decl);
+	  else
+	    {
+	      error ("%+D causes a section type conflict with %D",
+		     decl, sect->named.decl);
+	      if (decl != sect->named.decl)
+		inform (DECL_SOURCE_LOCATION (sect->named.decl),
+			"%qD was declared here", sect->named.decl);
+	    }
 	  /* Make sure we don't error about one section multiple times.  */
 	  sect->common.flags |= SECTION_OVERRIDE;
 	}