[clang] [Clang] Implement resource directory headers for common GPU intrinsics (PR #110179)

[Johannes Doerfert via cfe-commits]

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@@ -0,0 +1,18 @@
+//===-- gpuintrin.h - Generic GPU intrinsic functions ---------------------===//
+//
+// 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 __GPUINTRIN_H
+#define __GPUINTRIN_H
+
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jdoerfert wrote:

We should have forward declarations and default implementations here.

https://github.com/llvm/llvm-project/pull/110179