* config/sh/sh.c (calc_live_regs): Use

[pf3gnuchains/gcc-fork.git] / gcc / sched-rgn.c

diff --git a/gcc/sched-rgn.c b/gcc/sched-rgn.c
index 6df5c33..0ca1a47 100644 (file)
--- a/gcc/sched-rgn.c
+++ b/gcc/sched-rgn.c
@@ -315,24 +315,20 @@ is_cfg_nonregular (void)
   if (current_function_has_exception_handlers ())
     return 1;
 
-  /* If we have non-jumping insns which refer to labels, then we consider
-     the cfg not well structured.  */
+  /* If we have insns which refer to labels as non-jumped-to operands,
+     then we consider the cfg not well structured.  */
   FOR_EACH_BB (b)
     FOR_BB_INSNS (b, insn)
       {
-       /* Check for labels referred by non-jump insns.  */
-       if (NONJUMP_INSN_P (insn) || CALL_P (insn))
-         {
-           rtx note = find_reg_note (insn, REG_LABEL, NULL_RTX);
-           if (note
-               && ! (JUMP_P (NEXT_INSN (insn))
-                     && find_reg_note (NEXT_INSN (insn), REG_LABEL,
-                                       XEXP (note, 0))))
-             return 1;
-         }
+       /* Check for labels referred to but (at least not directly) as
+          jump targets.  */
+       if (INSN_P (insn)
+           && find_reg_note (insn, REG_LABEL_OPERAND, NULL_RTX))
+         return 1;
+
        /* If this function has a computed jump, then we consider the cfg
           not well structured.  */
-       else if (JUMP_P (insn) && computed_jump_p (insn))
+       if (JUMP_P (insn) && computed_jump_p (insn))
          return 1;
       }