[clang] [Clang][SYCL] Add AOT compilation support for Intel GPUs in clang-sycl-linker (PR #133194)

[Justin Cai via cfe-commits]

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@@ -0,0 +1,131 @@
+//===--- SYCL.h -------------------------------------------------*- 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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_BASIC_SYCL_H
+#define LLVM_CLANG_BASIC_SYCL_H
+
+#include "clang/Basic/Cuda.h"
+
+namespace llvm {
+class StringRef;
+template <unsigned InternalLen> class SmallString;
+} // namespace llvm
+
+namespace clang {
+// List of architectures (Intel CPUs and Intel GPUs)
+// that support SYCL offloading.
+enum class SYCLSupportedIntelArchs {
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jzc wrote:

Good idea, I moved the `OffloadArch` enum into Offloading.cpp/h, and kept the CUDA specific stuff in Cuda.h, and included that in Cuda.h, so it looks like no follow up PR of renaming of Cuda.h will be necessary.

[Add Offloading.cpp/h](https://github.com/llvm/llvm-project/pull/133194/commits/9002f9a743b83077eeeb0fe316eadd33f4880e96)

https://github.com/llvm/llvm-project/pull/133194