[llvm] [AMDGPU] Add dynamic LDS size implicit kernel argument to CO-v5 (PR #65273)

[via llvm-commits]

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@@ -663,7 +664,15 @@ void MetadataStreamerMsgPackV5::emitHiddenKernelArgs(
     Offset += 8; // Skipped.
   }
 
-  Offset += 72; // Reserved.
+  // emit argument for hidden dynamic lds size
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skc7 wrote:

I could find only this approach to check if dynamic LDS is used by kernel. Please let me know if there is any other way?

https://github.com/llvm/llvm-project/pull/65273