rs6000: Remove output_e500_flip_gt_bit

	* config/rs6000/rs6000-protos.h (output_e500_flip_gt_bit): Delete.
	* config/rs6000/rs6000.c: Ditto.

From-SVN: r248978

gcc/ChangeLog

 2017-06-07  Segher Boessenkool  <segher@kernel.crashing.org>
 
+	* config/rs6000/rs6000-protos.h (output_e500_flip_gt_bit): Delete.
+	* config/rs6000/rs6000.c: Ditto.
+
+2017-06-07  Segher Boessenkool  <segher@kernel.crashing.org>
+
 	* config/rs6000/predicated.md (rs6000_cbranch_operator): Delete.
 	* config/rs6000/rs6000.md: Replace rs6000_cbranch_operator by
 	comparison_operator.

gcc/config/rs6000/rs6000-protos.h

@@ -133,7 +133,6 @@ extern void rs6000_emit_sISEL (machine_mode, rtx[]);
 extern void rs6000_emit_sCOND (machine_mode, rtx[]);
 extern void rs6000_emit_cbranch (machine_mode, rtx[]);
 extern char * output_cbranch (rtx, const char *, int, rtx_insn *);
-extern char * output_e500_flip_gt_bit (rtx, rtx);
 extern const char * output_probe_stack_range (rtx, rtx);
 extern bool rs6000_emit_set_const (rtx, rtx);
 extern int rs6000_emit_cmove (rtx, rtx, rtx, rtx);

gcc/config/rs6000/rs6000.c

@@ -25105,24 +25105,6 @@ output_cbranch (rtx op, const char *label, int reversed, rtx_insn *insn)
   return string;
 }
 
-/* Return the string to flip the GT bit on a CR.  */
-char *
-output_e500_flip_gt_bit (rtx dst, rtx src)
-{
-  static char string[64];
-  int a, b;
-
-  gcc_assert (GET_CODE (dst) == REG && CR_REGNO_P (REGNO (dst))
-	      && GET_CODE (src) == REG && CR_REGNO_P (REGNO (src)));
-
-  /* GT bit.  */
-  a = 4 * (REGNO (dst) - CR0_REGNO) + 1;
-  b = 4 * (REGNO (src) - CR0_REGNO) + 1;
-
-  sprintf (string, "crnot %d,%d", a, b);
-  return string;
-}
-
 /* Return insn for VSX or Altivec comparisons.  */
 
 static rtx