re PR target/40473 (-mno-sched-prolog breaks function parameter debug location lists)

	PR target/40473
	* config/rs6000/rs6000.c (rs6000_output_function_prologue): Don't
	call final to emit non-scheduled prologue, instead insert at entry.

From-SVN: r152056

gcc/ChangeLog

+2009-09-23  Alan Modra  <amodra@bigpond.net.au>
+
+	PR target/40473
+	* config/rs6000/rs6000.c (rs6000_output_function_prologue): Don't
+	call final to emit non-scheduled prologue, instead insert at entry.
+
 2009-09-22  Loren J. Rittle  <ljrittle@acm.org>
 	    Joseph S. Myers  <joseph@codesourcery.com>
 

gcc/config/rs6000/rs6000.c

@@ -19111,6 +19111,8 @@ rs6000_output_function_prologue (FILE *file,
 
   if (! HAVE_prologue)
     {
+      rtx prologue;
+
       start_sequence ();
 
       /* A NOTE_INSN_DELETED is supposed to be at the start and end of
@@ -19130,10 +19132,14 @@ rs6000_output_function_prologue (FILE *file,
 	  }
       }
 
-      if (TARGET_DEBUG_STACK)
-	debug_rtx_list (get_insns (), 100);
-      final (get_insns (), file, FALSE);
+      prologue = get_insns ();
       end_sequence ();
+
+      if (TARGET_DEBUG_STACK)
+	debug_rtx_list (prologue, 100);
+
+      emit_insn_before_noloc (prologue, BB_HEAD (ENTRY_BLOCK_PTR->next_bb),
+			      ENTRY_BLOCK_PTR);
     }
 
   rs6000_pic_labelno++;