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-rw-r--r--src/ffts_attributes.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/ffts_attributes.h b/src/ffts_attributes.h
index 763a6af..bdfd616 100644
--- a/src/ffts_attributes.h
+++ b/src/ffts_attributes.h
@@ -96,4 +96,16 @@
#define FFTS_ASSUME_ALIGNED_32(x) x
#endif
+#if defined(__GNUC__)
+#define FFTS_LIKELY(cond) __builtin_expect(!!(cond), 1)
+#else
+#define FFTS_LIKELY(cond) cond
+#endif
+
+#if defined(__GNUC__)
+#define FFTS_UNLIKELY(cond) __builtin_expect(!!(cond), 0)
+#else
+#define FFTS_UNLIKELY(cond) cond
+#endif
+
#endif /* FFTS_ATTRIBUTES_H */
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