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Branch and cache miss speedups
[fio.git]
/
compiler
/
compiler.h
diff --git
a/compiler/compiler.h
b/compiler/compiler.h
index 33500a9b02a53c4259c307d69fff96d8c7369646..0a0213b60fca5204cb9d0294ffb01139baa23083 100644
(file)
--- a/
compiler/compiler.h
+++ b/
compiler/compiler.h
@@
-13,14
+13,13
@@
#define __must_check
#endif
#define __must_check
#endif
-#define uninitialized_var(x) x = x
+/*
+ * Mark unused variables passed to ops functions as unused, to silence gcc
+ */
+#define fio_unused __attribute__((__unused__))
+#define fio_init __attribute__((constructor))
+#define fio_exit __attribute__((destructor))
-#ifndef __weak
-#ifndef __CYGWIN__
-#define __weak __attribute__((weak))
-#else
-#define __weak
-#endif
-#endif
+#define fio_unlikely(x) __builtin_expect(!!(x), 0)
#endif
#endif