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-rw-r--r--common/opthelpers.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/common/opthelpers.h b/common/opthelpers.h
index bb0b63fe..87045739 100644
--- a/common/opthelpers.h
+++ b/common/opthelpers.h
@@ -13,13 +13,17 @@
* path at the expense of a less optimal false path.
*/
#define LIKELY(x) (__builtin_expect(!!(x), !false))
+constexpr bool likely(bool expr) { return __builtin_expect(expr, true); }
/* The opposite of LIKELY, optimizing the case where the condition is false. */
#define UNLIKELY(x) (__builtin_expect(!!(x), false))
+constexpr bool unlikely(bool expr) { return __builtin_expect(expr, false); }
#else
#define LIKELY(x) (!!(x))
#define UNLIKELY(x) (!!(x))
+constexpr bool likely(bool expr) { return expr; }
+constexpr bool unlikely(bool expr) { return expr; }
#endif
#if HAS_BUILTIN(__builtin_assume)