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authorunknown <marko@hundin.mysql.fi>2005-04-21 15:27:18 +0300
committerunknown <marko@hundin.mysql.fi>2005-04-21 15:27:18 +0300
commitc546b5f3b566d3e2b0e970c0313244823cb8c9a8 (patch)
tree95a3466cc1d65218a2a4fe27570c376a7910f3a8 /innobase/include/ut0dbg.h
parent87c4f37a5009bc1b0889c7a3dfc316d47e9fb9f8 (diff)
downloadmariadb-git-c546b5f3b566d3e2b0e970c0313244823cb8c9a8.tar.gz
InnoDB: Make branch prediction assume that assertions do not fail.
innobase/include/ut0dbg.h: Remove ut_dbg_zero. Use the UNIV_UNLIKELY() macro in assertions in order to assist branch prediction. innobase/ut/ut0dbg.c: Remove ut_dbg_zero.
Diffstat (limited to 'innobase/include/ut0dbg.h')
-rw-r--r--innobase/include/ut0dbg.h6
1 files changed, 2 insertions, 4 deletions
diff --git a/innobase/include/ut0dbg.h b/innobase/include/ut0dbg.h
index 5f30a894874..a0af0e2f0ad 100644
--- a/innobase/include/ut0dbg.h
+++ b/innobase/include/ut0dbg.h
@@ -13,8 +13,6 @@ Created 1/30/1994 Heikki Tuuri
#include <stdlib.h>
#include "os0thread.h"
-extern ulint ut_dbg_zero; /* This is used to eliminate
- compiler warnings */
extern ibool ut_dbg_stop_threads;
extern ulint* ut_dbg_null_ptr;
@@ -26,7 +24,7 @@ extern const char* ut_dbg_msg_stop;
#ifdef __NETWARE__
extern ibool panic_shutdown;
#define ut_a(EXPR) do {\
- if (!((ulint)(EXPR) + ut_dbg_zero)) {\
+ if (UNIV_UNLIKELY(!((ulint)(EXPR)))) {\
ut_print_timestamp(stderr);\
fprintf(stderr, ut_dbg_msg_assert_fail,\
os_thread_pf(os_thread_get_curr_id()), __FILE__,\
@@ -55,7 +53,7 @@ extern ibool panic_shutdown;
} while (0)
#else
#define ut_a(EXPR) do {\
- if (!((ulint)(EXPR) + ut_dbg_zero)) {\
+ if (UNIV_UNLIKELY(!((ulint)(EXPR)))) {\
ut_print_timestamp(stderr);\
fprintf(stderr, ut_dbg_msg_assert_fail,\
os_thread_pf(os_thread_get_curr_id()), __FILE__,\