[clang] [clang-sycl-linker] Generate SymbolTable for each image (PR #161287)

[Joseph Huber via cfe-commits]

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@@ -466,6 +466,12 @@ static Error runAOTCompile(StringRef InputFile, StringRef OutputFile,
   return createStringError(inconvertibleErrorCode(), "Unsupported arch");
 }
 
+bool isKernel(const Function &F) {
+  const CallingConv::ID CC = F.getCallingConv();
+  return CC == CallingConv::SPIR_KERNEL || CC == CallingConv::AMDGPU_KERNEL ||
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jhuber6 wrote:

The calling convention is supposed to be used over attributes because kernels are more correctly modeled as a calling convetion. For purposes of identifying globals of interest they should do the same thing I do to look up offload binaries in LTO files https://github.com/llvm/llvm-project/blob/82efd72ed505c6ec183eca700290a29051c2d6e6/llvm/lib/Object/OffloadBinary.cpp#L112

https://github.com/llvm/llvm-project/pull/161287