From f39e4aac42ce9cc0b30e318819a9ad6dbd951d41 Mon Sep 17 00:00:00 2001
From: MaxEW707 <82551778+MaxEW707@users.noreply.github.com>
Date: Wed, 10 Jan 2024 20:21:33 -0500
Subject: [PATCH] Add `yvals_core.h` interposing library

---
 clang/lib/Headers/CMakeLists.txt |  1 +
 clang/lib/Headers/yvals_core.h   | 26 ++++++++++++++++++++++++++
 2 files changed, 27 insertions(+)
 create mode 100644 clang/lib/Headers/yvals_core.h

diff --git a/clang/lib/Headers/CMakeLists.txt b/clang/lib/Headers/CMakeLists.txt
index a453cedf21a64..9d478edd61d86 100644
--- a/clang/lib/Headers/CMakeLists.txt
+++ b/clang/lib/Headers/CMakeLists.txt
@@ -256,6 +256,7 @@ set(windows_only_files
   intrin0.h
   intrin.h
   vadefs.h
+  yvals_core.h
 )
 
 set(utility_files
diff --git a/clang/lib/Headers/yvals_core.h b/clang/lib/Headers/yvals_core.h
new file mode 100644
index 0000000000000..fd36aabfba999
--- /dev/null
+++ b/clang/lib/Headers/yvals_core.h
@@ -0,0 +1,26 @@
+/* ===-------- vadefs.h ---------------------------------------------------===
+ *
+ * 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
+ *
+ *===-----------------------------------------------------------------------===
+ */
+
+/* Only include this if we are aiming for MSVC compatibility. */
+#ifndef _MSC_VER
+#include_next <yvals_core.h>
+#else
+
+#ifndef __clang_yvals_core_h
+#define __clang_yvals_core_h
+
+#include_next <yvals_core.h>
+
+#ifdef _STL_INTRIN_HEADER
+#undef _STL_INTRIN_HEADER
+#define _STL_INTRIN_HEADER <intrin0.h>
+#endif
+
+#endif
+#endif