[clang] [SYCL] The sycl_kernel_entry_point attribute. (PR #111389)

[Aaron Ballman via cfe-commits]

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@@ -407,7 +407,8 @@ def MicrosoftExt : LangOpt<"MicrosoftExt">;
 def Borland : LangOpt<"Borland">;
 def CUDA : LangOpt<"CUDA">;
 def HIP : LangOpt<"HIP">;
-def SYCL : LangOpt<"SYCLIsDevice">;
+def SYCLHost : LangOpt<"SYCLIsHost">;
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AaronBallman wrote:

IMO, where we eventually want to end up is with `IsDevice` and `IsHost` which composes with all the offloading languages (I cannot imagine a situation where you're compiling for the device in one offloading language while compiling for the host in another offloading language in the same compilation pass). e.g., `getLangOpts().SYCL && getLangOpts().IsDevice` tells you that you're doing a device compilation for SYCL.

https://github.com/llvm/llvm-project/pull/111389