1 files changed, 42 insertions, 0 deletions
diff --git a/contrib/llvm-project/clang/lib/Headers/waitpkgintrin.h b/contrib/llvm-project/clang/lib/Headers/waitpkgintrin.h
new file mode 100644
index 000000000000..7ecada4cf723
--- /dev/null
+++ b/contrib/llvm-project/clang/lib/Headers/waitpkgintrin.h
@@ -0,0 +1,42 @@
+/*===----------------------- waitpkgintrin.h - WAITPKG --------------------===
+ *
+ * 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
+ *
+ *===-----------------------------------------------------------------------===
+ */
+#if !defined __X86INTRIN_H && !defined __IMMINTRIN_H
+#error "Never use <waitpkgintrin.h> directly; include <x86intrin.h> instead."
+#endif
+
+#ifndef __WAITPKGINTRIN_H
+#define __WAITPKGINTRIN_H
+
+/* Define the default attributes for the functions in this file. */
+#define __DEFAULT_FN_ATTRS \
+  __attribute__((__always_inline__, __nodebug__,  __target__("waitpkg")))
+
+static __inline__ void __DEFAULT_FN_ATTRS
+_umonitor (void * __address)
+{
+  __builtin_ia32_umonitor (__address);
+}
+
+static __inline__ unsigned char __DEFAULT_FN_ATTRS
+_umwait (unsigned int __control, unsigned long long __counter)
+{
+  return __builtin_ia32_umwait (__control,
+    (unsigned int)(__counter >> 32), (unsigned int)__counter);
+}
+
+static __inline__ unsigned char __DEFAULT_FN_ATTRS
+_tpause (unsigned int __control, unsigned long long __counter)
+{
+  return __builtin_ia32_tpause (__control,
+    (unsigned int)(__counter >> 32), (unsigned int)__counter);
+}
+
+#undef __DEFAULT_FN_ATTRS
+
+#endif /* __WAITPKGINTRIN_H */