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

[Joseph Huber via cfe-commits]

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@@ -0,0 +1,76 @@
+//===-- 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
+
+#if defined(__NVPTX__)
+#include <nvptxintrin.h>
+#elif defined(__AMDGPU__)
+#include <amdgpuintrin.h>
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jhuber6 wrote:

I'm on the fence for providing fallbacks for non-GPU architectures, since I have that use-case in the `rpc.h` file.

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