always define HAVE_peephole2

gcc/ChangeLog:

2015-08-20  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* genconfig.c (main): Always define HAVE_cc0.
	* recog.c (rest_of_handle_peephole2): Adjust.

From-SVN: r227051

gcc/ChangeLog

 2015-08-20  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
 
+	* genconfig.c (main): Always define HAVE_cc0.
+	* recog.c (rest_of_handle_peephole2): Adjust.
+
+2015-08-20  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
+
 	* reorg.c (relax_delay_slots): Don't use #if to check value of
 	HAVE_cc0.
 

gcc/genconfig.c

@@ -372,6 +372,11 @@ main (int argc, char **argv)
       printf ("#define HAVE_peephole2 1\n");
       printf ("#define MAX_INSNS_PER_PEEP2 %d\n", max_insns_per_peep2);
     }
+  else
+    {
+      printf ("#define HAVE_peephole2 0\n");
+      printf ("#define MAX_INSNS_PER_PEEP2 0\n");
+    }
 
   puts ("\n#endif /* GCC_INSN_CONFIG_H */");
 

gcc/recog.c

@@ -3018,7 +3018,6 @@ split_all_insns_noflow (void)
   return 0;
 }
 
-#ifdef HAVE_peephole2
 struct peep2_insn_data
 {
   rtx_insn *insn;
@@ -3651,7 +3650,6 @@ peephole2_optimize (void)
   if (peep2_do_cleanup_cfg)
     cleanup_cfg (CLEANUP_CFG_CHANGED);
 }
-#endif /* HAVE_peephole2 */
 
 /* Common predicates for use with define_bypass.  */
 
@@ -3804,9 +3802,9 @@ if_test_bypass_p (rtx_insn *out_insn, rtx_insn *in_insn)
 static unsigned int
 rest_of_handle_peephole2 (void)
 {
-#ifdef HAVE_peephole2
-  peephole2_optimize ();
-#endif
+  if (HAVE_peephole2)
+    peephole2_optimize ();
+
   return 0;
 }