Update to LLVM-17

src/llvm-c/Deprecated.h

@@ -0,0 +1,38 @@
+/*===-- llvm-c/Deprecated.h - Deprecation macro -------------------*- C -*-===*\
+|*                                                                            *|
+|* 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                    *|
+|*                                                                            *|
+|*===----------------------------------------------------------------------===*|
+|*                                                                            *|
+|* This header declares LLVM_ATTRIBUTE_C_DEPRECATED() macro, which can be     *|
+|* used to deprecate functions in the C interface.                            *|
+|*                                                                            *|
+\*===----------------------------------------------------------------------===*/
+
+#ifndef LLVM_C_DEPRECATED_H
+#define LLVM_C_DEPRECATED_H
+
+#ifndef __has_feature
+# define __has_feature(x) 0
+#endif
+
+// This is a variant of LLVM_ATTRIBUTE_DEPRECATED() that is compatible with
+// C compilers.
+#if __has_feature(attribute_deprecated_with_message)
+# define LLVM_ATTRIBUTE_C_DEPRECATED(decl, message) \
+  decl __attribute__((deprecated(message)))
+#elif defined(__GNUC__)
+# define LLVM_ATTRIBUTE_C_DEPRECATED(decl, message) \
+  decl __attribute__((deprecated))
+#elif defined(_MSC_VER)
+# define LLVM_ATTRIBUTE_C_DEPRECATED(decl, message) \
+  __declspec(deprecated(message)) decl
+#else
+# define LLVM_ATTRIBUTE_C_DEPRECATED(decl, message) \
+  decl
+#endif
+
+#endif /* LLVM_C_DEPRECATED_H */