[clang] [llvm] [TargetParser][clang] Parse and store Intel IGCA virtual architecture as an OffloadArch (PR #227468)

[Nikita Kornev via cfe-commits]

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@@ -92,5 +102,20 @@ INTEL_GPU_COMPAT("xe-bmg", XE_BMG, 40, Render)
 INTEL_GPU_COMPAT("xe-mtl", XE_MTL, 30, Render)
 INTEL_GPU_COMPAT("xe-dg2", XE_DG2, 15, RenderExact)
 
+// IGCA target levels. Only targets defined here are valid.
+#ifndef INTEL_IGCA_TARGET
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KornevNikita wrote:

> https://github.com/ianayl/llvm-project/compare/sycl/IGCA/offload-store-igca...ianayl:llvm-project:sycl/IGCA/offload-igca-test?expand=1

I'm fine with this solution, I prefer more code rather than two tables. Anyways, I'd like to hear from @tahonermann and @srividya-sundaram.

https://github.com/llvm/llvm-project/pull/227468