Don't use fldcr to serialize it is broken on the 88110...

Don't use fldcr to serialize it is broken on the 88110, use tb1 instead
Made serialize-volatile the deault for all models.

From-SVN: r4967

gcc/config/m88k/m88k.c

@@ -2687,6 +2687,13 @@ print_operand (file, x, code)
 	     The mechanism below is completed by having CC_STATUS_INIT set
 	     the code to the unknown value.  */
 
+	  /*
+	     hassey 6/30/93
+	     A problem with 88110 4.1 & 4.2 makes the use of fldcr for
+	     this purpose undesirable.  Instead we will use tb1, this will
+	     cause serialization on the 88100 but such is life.
+	  */
+
 	  static rtx last_addr = 0;
 	  if (code == 'V' /* Only need to serialize before a load.  */
 	      && m88k_volatile_code != 'V' /* Loads complete in FIFO order.  */
@@ -2694,12 +2701,16 @@ print_operand (file, x, code)
 		   && GET_CODE (XEXP (x, 0)) == LO_SUM
 		   && rtx_equal_p (XEXP (XEXP (x, 0), 1), last_addr)))
 	    fprintf (file,
+#if 0
 #ifdef AS_BUG_FLDCR
 		     "fldcr\t %s,%scr63\n\t",
 #else
 		     "fldcr\t %s,%sfcr63\n\t",
 #endif
 		     reg_names[0], m88k_pound_sign);
+#else /* 0 */
+		     "tb1\t 1,%s,0xff\n\t", reg_names[0]);
+#endif /* 0 */
 	  m88k_volatile_code = code;
 	  last_addr = (GET_CODE (XEXP (x, 0)) == LO_SUM
 		       ? XEXP (XEXP (x, 0), 1) : 0);