re PR debug/48176 (.debug_aranges is no longer emitted)

	PR debug/48176
	* dwarf2out.c (dwarf2out_finish): Call output_aranges even when
	arange_table_in_use is 0, but either text_section_used or
	cold_text_section_used is true.  Don't call it if
	!info_section_emitted.

From-SVN: r171150

gcc/ChangeLog

+2011-03-18  Jakub Jelinek  <jakub@redhat.com>
+
+	PR debug/48176
+	* dwarf2out.c (dwarf2out_finish): Call output_aranges even when
+	arange_table_in_use is 0, but either text_section_used or
+	cold_text_section_used is true.  Don't call it if
+	!info_section_emitted.
+
 2011-03-18  Anatoly Sokolov  <aesok@post.ru>
 
 	* config/avr/avr.h (RET_REGISTER, LIBCALL_VALUE,

gcc/dwarf2out.c

@@ -23667,7 +23667,8 @@ dwarf2out_finish (const char *filename)
 
   /* Output the address range information.  We only put functions in the arange
      table, so don't write it out if we don't have any.  */
-  if (arange_table_in_use)
+  if ((text_section_used || cold_text_section_used || arange_table_in_use)
+      && info_section_emitted)
     {
       switch_to_section (debug_aranges_section);
       output_aranges ();