voron

commit 3c25db99fa8c28bd688dd701fc74bf67184a2afc
parent dbd301c60ac5d62db0f2f2142798259fb5e4d329
Author: oblique <psyberbits@gmail.com>
Date:   Tue,  9 Apr 2013 09:27:40 +0300

io.h: add compiler barrier

Diffstat:
M
include/io.h
 | 
2
++

1 file changed, 2 insertions(+), 0 deletions(-)
diff --git a/include/io.h b/include/io.h
@@ -10,6 +10,8 @@
 /* instruction synchronization barrier */
 #define isb()	asm volatile("isb" : : : "memory")
 
+/* compiler barrier */
+#define cb()	asm volatile("" : : : "memory");
 /* memory barrier */
 #define mb()	dsb()
 /* read memory barrier */