git subrepo pull (merge) --force deps/libchdr

[pcsx_rearmed.git] / deps / libchdr / deps / zstd-1.5.5 / contrib / pzstd / utils / Likely.h

diff --git a/deps/libchdr/deps/zstd-1.5.5/contrib/pzstd/utils/Likely.h b/deps/libchdr/deps/zstd-1.5.5/contrib/pzstd/utils/Likely.h
new file mode 100644 (file)
index 0000000..52243a6
--- /dev/null
+++ b/deps/libchdr/deps/zstd-1.5.5/contrib/pzstd/utils/Likely.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * This source code is licensed under both the BSD-style license (found in the
+ * LICENSE file in the root directory of this source tree) and the GPLv2 (found
+ * in the COPYING file in the root directory of this source tree).
+ */
+ 
+/**
+ * Compiler hints to indicate the fast path of an "if" branch: whether
+ * the if condition is likely to be true or false.
+ *
+ * @author Tudor Bosman (tudorb@fb.com)
+ */
+
+#pragma once
+
+#undef LIKELY
+#undef UNLIKELY
+
+#if defined(__GNUC__) && __GNUC__ >= 4
+#define LIKELY(x) (__builtin_expect((x), 1))
+#define UNLIKELY(x) (__builtin_expect((x), 0))
+#else
+#define LIKELY(x) (x)
+#define UNLIKELY(x) (x)
+#endif