1 files changed, 36 insertions, 0 deletions
diff --git a/contrib/llvm-project/clang/lib/Headers/clflushoptintrin.h b/contrib/llvm-project/clang/lib/Headers/clflushoptintrin.h
new file mode 100644
index 000000000000..ae0a0244c497
--- /dev/null
+++ b/contrib/llvm-project/clang/lib/Headers/clflushoptintrin.h
@@ -0,0 +1,36 @@
+/*===---- clflushoptintrin.h - CLFLUSHOPT intrinsic ------------------------===
+ *
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+ *
+ *===-----------------------------------------------------------------------===
+ */
+
+#ifndef __IMMINTRIN_H
+#error "Never use <clflushoptintrin.h> directly; include <immintrin.h> instead."
+#endif
+
+#ifndef __CLFLUSHOPTINTRIN_H
+#define __CLFLUSHOPTINTRIN_H
+
+/* Define the default attributes for the functions in this file. */
+#define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__,  __target__("clflushopt")))
+
+/// Invalidates all levels of the cache hierarchy and flushes modified data to
+///    memory for the cache line specified by the address \a __m.
+///
+/// \headerfile <immintrin.h>
+///
+/// This intrinsic corresponds to the \c CLFLUSHOPT instruction.
+///
+/// \param __m
+///    An address within the cache line to flush and invalidate.
+static __inline__ void __DEFAULT_FN_ATTRS
+_mm_clflushopt(void const * __m) {
+  __builtin_ia32_clflushopt(__m);
+}
+
+#undef __DEFAULT_FN_ATTRS
+
+#endif