unroll.c (copy_loop_body): Don't make extra copies of NOTE_INSN_LOOP_CONT notes.

	* unroll.c (copy_loop_body): Don't make extra copies of
	NOTE_INSN_LOOP_CONT notes.

From-SVN: r25535

gcc/ChangeLog

+Tue Mar  2 16:45:31 1999  J"orn Rennecke <amylaar@cygnus.co.uk>
+
+	* unroll.c (copy_loop_body): Don't make extra copies of
+	NOTE_INSN_LOOP_CONT notes.
+
 Tue Mar  2 07:44:56 1999  Mark Mitchell  <mark@markmitchell.com>
 
 	* tree.c (save_tree_status): Don't treat functions with no context

gcc/unroll.c

@@ -2127,15 +2127,16 @@ copy_loop_body (copy_start, copy_end, map, exit_label, last_iteration,
 	  break;
 
 	case NOTE:
-	  /* VTOP notes are valid only before the loop exit test.  If placed
-	     anywhere else, loop may generate bad code.  */
+	  /* VTOP and CONT notes are valid only before the loop exit test.
+	     If placed anywhere else, loop may generate bad code.  */
 	  /* BASIC_BLOCK notes exist to stabilize basic block structures with
 	     the associated rtl.  We do not want to share the structure in 
 	     this new block.  */
 
 	  if (NOTE_LINE_NUMBER (insn) != NOTE_INSN_DELETED
 	      && NOTE_LINE_NUMBER (insn) != NOTE_INSN_BASIC_BLOCK
-	      && (NOTE_LINE_NUMBER (insn) != NOTE_INSN_LOOP_VTOP
+	      && ((NOTE_LINE_NUMBER (insn) != NOTE_INSN_LOOP_VTOP
+		   && NOTE_LINE_NUMBER (insn) != NOTE_INSN_LOOP_CONT)
 		  || (last_iteration && unroll_type != UNROLL_COMPLETELY)))
 	    copy = emit_note (NOTE_SOURCE_FILE (insn),
 			      NOTE_LINE_NUMBER (insn));