unroll.c (copy_loop_body): Always properly update JUMP_LABEL and LABEL_NUSES.

	* unroll.c (copy_loop_body): Always properly update JUMP_LABEL and
	LABEL_NUSES.

From-SVN: r48600

gcc/ChangeLog

+Mon Jan  7 11:59:34 CET 2002  Jan Hubicka  <jh@suse.cz>
+
+	* unroll.c (copy_loop_body): Always properly update JUMP_LABEL and
+	LABEL_NUSES.
+
 2002-01-07  Graham Stott  <grahams@redhat.com>
 
         * config/i386/i386.h: Update copyright date.

gcc/unroll.c

@@ -2073,14 +2073,16 @@ copy_loop_body (loop, copy_start, copy_end, map, exit_label, last_iteration,
 	  copy = emit_jump_insn (pattern);
 	  REG_NOTES (copy) = initial_reg_note_copy (REG_NOTES (insn), map);
 
-	  if (JUMP_LABEL (insn) == start_label && insn == copy_end
-	      && ! last_iteration)
+	  if (JUMP_LABEL (insn))
 	    {
-	      /* Update JUMP_LABEL make invert_jump work correctly.  */
 	      JUMP_LABEL (copy) = get_label_from_map (map,
 						      CODE_LABEL_NUMBER
 						      (JUMP_LABEL (insn)));
 	      LABEL_NUSES (JUMP_LABEL (copy))++;
+	    }
+	  if (JUMP_LABEL (insn) == start_label && insn == copy_end
+	      && ! last_iteration)
+	    {
 
 	      /* This is a branch to the beginning of the loop; this is the
 		 last insn being copied; and this is not the last iteration.