(final_start_function): Always call sdbout_begin_function and

xcoffout_begin_function, even if no line number info.

From-SVN: r10231

gcc/final.c

@@ -887,12 +887,12 @@ final_start_function (first, file, optimize)
      so that the function's address will not appear to be
      in the last statement of the preceding function.  */
   if (NOTE_LINE_NUMBER (first) != NOTE_INSN_DELETED)
-    {
     last_linenum = high_block_linenum = high_function_linenum
       = NOTE_LINE_NUMBER (first);
 
   /* For SDB and XCOFF, the function beginning must be marked between
-	 the function label and the prologue.  */
+     the function label and the prologue.  We always need this, even when
+     -g1 was used.  */
 #ifdef SDB_DEBUGGING_INFO
   if (write_symbols == SDB_DEBUG)
     sdbout_begin_function (last_linenum);
@@ -903,8 +903,10 @@ final_start_function (first, file, optimize)
       xcoffout_begin_function (file, last_linenum);
     else
 #endif	  
+      /* But only output line number for other debug info types if -g2
+	 or better.  */
+      if (NOTE_LINE_NUMBER (first) != NOTE_INSN_DELETED)
 	output_source_line (file, first);
-    }
 
 #ifdef LEAF_REG_REMAP
   if (leaf_function)