re PR debug/53704 (ICE: in based_loc_descr, at dwarf2out.c:10027 after revision 188621)

	PR debug/53704
	* dwarf2out.c (gen_compile_unit_die): Use DW_LANG_Fortran90 as language
	for GNU Fortran if in strict DWARF2 mode.

From-SVN: r188874

gcc/ChangeLog

 2012-06-22  Eric Botcazou  <ebotcazou@adacore.com>
 
+	PR debug/53704
+	* dwarf2out.c (gen_compile_unit_die): Use DW_LANG_Fortran90 as language
+	for GNU Fortran if in strict DWARF2 mode.
+
+2012-06-22  Eric Botcazou  <ebotcazou@adacore.com>
+
 	* tree-ssa-live.c (remove_unused_scope_block_p): Remove again
 	DECL_IGNORED_P non-reg vars even if they are used.
 

gcc/dwarf2out.c

@@ -18220,6 +18220,9 @@ gen_compile_unit_die (const char *filename)
 	    language = DW_LANG_Go;
 	}
     }
+  /* Use a degraded Fortran setting in strict DWARF2 so is_fortran works.  */
+  else if (strcmp (language_string, "GNU Fortran") == 0)
+    language = DW_LANG_Fortran90;
 
   add_AT_unsigned (die, DW_AT_language, language);