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gallium: Add a macro for memory barriers.
author
José Fonseca
<jfonseca@vmware.com>
Wed, 14 Jul 2010 13:00:20 +0000
(14:00 +0100)
committer
José Fonseca
<jfonseca@vmware.com>
Wed, 14 Jul 2010 13:38:02 +0000
(14:38 +0100)
src/gallium/include/pipe/p_compiler.h
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diff --git
a/src/gallium/include/pipe/p_compiler.h
b/src/gallium/include/pipe/p_compiler.h
index
a14486a
..
619a62f
100644
(file)
--- a/
src/gallium/include/pipe/p_compiler.h
+++ b/
src/gallium/include/pipe/p_compiler.h
@@
-184,6
+184,25
@@
typedef unsigned char boolean;
#endif
+
+#if defined(__GNUC__)
+
+#define PIPE_READ_WRITE_BARRIER() __asm__("":::"memory")
+
+#elif defined(_MSC_VER)
+
+void _ReadWriteBarrier(void);
+#pragma intrinsic(_ReadWriteBarrier)
+#define PIPE_READ_WRITE_BARRIER() _ReadWriteBarrier()
+
+#else
+
+#warning "Unsupported compiler"
+#define PIPE_READ_WRITE_BARRIER() /* */
+
+#endif
+
+
/* You should use these macros to mark if blocks where the if condition
* is either likely to be true, or unlikely to be true.
*