Merge tulin@bk-internal.mysql.com:/home/bk/mysql-5.0

into dl145b.mysql.com:/home/ndbdev/tomas/mysql-5.1


sql/ha_innodb.cc:
  Auto merged
sql/ha_innodb.h:
  Auto merged
sql/mysqld.cc:
  Auto merged
storage/innobase/btr/btr0btr.c:
  Auto merged
storage/innobase/btr/btr0cur.c:
  Auto merged
storage/innobase/btr/btr0pcur.c:
  Auto merged
storage/innobase/btr/btr0sea.c:
  Auto merged
storage/innobase/buf/buf0buf.c:
  Auto merged
storage/innobase/buf/buf0flu.c:
  Auto merged
storage/innobase/buf/buf0lru.c:
  Auto merged
storage/innobase/buf/buf0rea.c:
  Auto merged
storage/innobase/data/data0data.c:
  Auto merged
storage/innobase/data/data0type.c:
  Auto merged
storage/innobase/dict/dict0boot.c:
  Auto merged
storage/innobase/dict/dict0crea.c:
  Auto merged
storage/innobase/dict/dict0dict.c:
  Auto merged
storage/innobase/dict/dict0mem.c:
  Auto merged
storage/innobase/fil/fil0fil.c:
  Auto merged
storage/innobase/fsp/fsp0fsp.c:
  Auto merged
storage/innobase/ibuf/ibuf0ibuf.c:
  Auto merged
storage/innobase/include/btr0btr.h:
  Auto merged
storage/innobase/include/btr0btr.ic:
  Auto merged
storage/innobase/include/btr0cur.h:
  Auto merged
storage/innobase/include/btr0cur.ic:
  Auto merged
storage/innobase/include/buf0buf.h:
  Auto merged
storage/innobase/include/buf0buf.ic:
  Auto merged
storage/innobase/include/buf0lru.h:
  Auto merged
storage/innobase/include/data0type.h:
  Auto merged
storage/innobase/include/data0type.ic:
  Auto merged
storage/innobase/include/dyn0dyn.h:
  Auto merged
storage/innobase/include/dyn0dyn.ic:
  Auto merged
storage/innobase/include/lock0lock.h:
  Auto merged
storage/innobase/include/log0log.h:
  Auto merged
storage/innobase/include/mach0data.h:
  Auto merged
storage/innobase/include/mach0data.ic:
  Auto merged
storage/innobase/include/mem0mem.ic:
  Auto merged
storage/innobase/include/mtr0log.h:
  Auto merged
storage/innobase/include/mtr0mtr.h:
  Auto merged
storage/innobase/include/os0file.h:
  Auto merged
storage/innobase/include/page0cur.h:
  Auto merged
storage/innobase/include/page0cur.ic:
  Auto merged
storage/innobase/include/page0page.h:
  Auto merged
storage/innobase/include/page0page.ic:
  Auto merged
storage/innobase/include/read0read.ic:
  Auto merged
storage/innobase/include/rem0rec.h:
  Auto merged
storage/innobase/include/rem0rec.ic:
  Auto merged
storage/innobase/include/row0mysql.h:
  Auto merged
storage/innobase/include/row0sel.ic:
  Auto merged
storage/innobase/include/row0upd.ic:
  Auto merged
storage/innobase/include/sync0rw.ic:
  Auto merged
storage/innobase/include/trx0rseg.ic:
  Auto merged
storage/innobase/include/trx0trx.h:
  Auto merged
storage/innobase/include/univ.i:
  Auto merged
storage/innobase/include/ut0dbg.h:
  Auto merged
storage/innobase/include/ut0rnd.ic:
  Auto merged
storage/innobase/lock/lock0lock.c:
  Auto merged
storage/innobase/log/log0log.c:
  Auto merged
storage/innobase/log/log0recv.c:
  Auto merged
storage/innobase/mtr/mtr0log.c:
  Auto merged
storage/innobase/mtr/mtr0mtr.c:
  Auto merged
storage/innobase/os/os0file.c:
  Auto merged
storage/innobase/page/page0cur.c:
  Auto merged
storage/innobase/page/page0page.c:
  Auto merged
storage/innobase/rem/rem0cmp.c:
  Auto merged
storage/innobase/rem/rem0rec.c:
  Auto merged
storage/innobase/row/row0ins.c:
  Auto merged
storage/innobase/row/row0mysql.c:
  Auto merged
storage/innobase/row/row0purge.c:
  Auto merged
storage/innobase/row/row0row.c:
  Auto merged
storage/innobase/row/row0sel.c:
  Auto merged
storage/innobase/row/row0undo.c:
  Auto merged
storage/innobase/row/row0upd.c:
  Auto merged
storage/innobase/row/row0vers.c:
  Auto merged
storage/innobase/srv/srv0start.c:
  Auto merged
storage/innobase/sync/sync0sync.c:
  Auto merged
storage/innobase/trx/trx0rec.c:
  Auto merged
storage/innobase/trx/trx0roll.c:
  Auto merged
storage/innobase/trx/trx0trx.c:
  Auto merged
storage/innobase/ut/ut0dbg.c:
  Auto merged

1 files changed, 25 insertions, 1 deletions

diff --git a/storage/innobase/include/univ.i b/storage/innobase/include/univ.i
index 8158c198e21..132ac9e18c5 100644
--- a/storage/innobase/include/univ.i
+++ b/storage/innobase/include/univ.i
@@ -181,7 +181,7 @@ management to ensure correct alignment for doubles etc. */
 /* Another basic type we use is unsigned long integer which should be equal to
 the word size of the machine, that is on a 32-bit platform 32 bits, and on a
 64-bit platform 64 bits. We also give the printf format for the type as a
-macro PRULINT. */
+macro ULINTPF. */
 
 #ifdef _WIN64
 typedef unsigned __int64	ulint;
@@ -243,6 +243,30 @@ contains the sum of the following flag and the locally stored len. */
 
 #define UNIV_EXTERN_STORAGE_FIELD (UNIV_SQL_NULL - UNIV_PAGE_SIZE)
 
+/* Some macros to improve branch prediction and reduce cache misses */
+#if defined(__GNUC__) && (__GNUC__ > 2)
+/* Tell the compiler that 'expr' probably evaluates to 'constant'. */
+# define UNIV_EXPECT(expr,constant) __builtin_expect(expr, constant)
+/* Tell the compiler that a pointer is likely to be NULL */
+# define UNIV_LIKELY_NULL(ptr) __builtin_expect((ulint) ptr, 0)
+/* Minimize cache-miss latency by moving data at addr into a cache before
+it is read. */
+# define UNIV_PREFETCH_R(addr) __builtin_prefetch(addr, 0, 3)
+/* Minimize cache-miss latency by moving data at addr into a cache before
+it is read or written. */
+# define UNIV_PREFETCH_RW(addr) __builtin_prefetch(addr, 1, 3)
+#else
+/* Dummy versions of the macros */
+# define UNIV_EXPECT(expr,value) (expr)
+# define UNIV_LIKELY_NULL(expr) (expr)
+# define UNIV_PREFETCH_R(addr) ((void) 0)
+# define UNIV_PREFETCH_RW(addr) ((void) 0)
+#endif
+/* Tell the compiler that cond is likely to hold */
+#define UNIV_LIKELY(cond) UNIV_EXPECT(cond, TRUE)
+/* Tell the compiler that cond is unlikely to hold */
+#define UNIV_UNLIKELY(cond) UNIV_EXPECT(cond, FALSE)
+
 #include <stdio.h>
 #include "ut0dbg.h"
 #include "ut0ut.h"