recog: Increase max number of alternatives.

With the vector facility support z13 mov patterns have more than 30
alternatives.

gcc/
	* recog.h: Increase MAX_RECOG_ALTERNATIVES.
	Change type of alternative_mask to uint64_t.

From-SVN: r223367

gcc/ChangeLog

+2015-05-19  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+
+	* recog.h: Increase MAX_RECOG_ALTERNATIVES.  Change type of
+	alternative_mask to uint64_t.
+
 2015-05-19  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/66187

gcc/recog.h

@@ -23,8 +23,8 @@ along with GCC; see the file COPYING3.  If not see
 /* Random number that should be large enough for all purposes.  Also define
    a type that has at least MAX_RECOG_ALTERNATIVES + 1 bits, with the extra
    bit giving an invalid value that can be used to mean "uninitialized".  */
-#define MAX_RECOG_ALTERNATIVES 30
-typedef unsigned int alternative_mask;
+#define MAX_RECOG_ALTERNATIVES 35
+typedef uint64_t alternative_mask;
 
 /* A mask of all alternatives.  */
 #define ALL_ALTERNATIVES ((alternative_mask) -1)