[llvm] [SPIRV] Unify unsized array handling for AMGCN flavoured SPIR-V (PR #175848)

[Marcos Maronas via llvm-commits]

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@@ -876,6 +876,9 @@ SPIRVType *SPIRVGlobalRegistry::getOpTypeArray(uint32_t NumElems,
   SPIRVType *ArrayType = nullptr;
   const SPIRVSubtarget &ST =
       cast<SPIRVSubtarget>(MIRBuilder.getMF().getSubtarget());
+  if (NumElems == 0 &&
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maarquitos14 wrote:

I was going to ask a similar question. Maybe we're missing something and `UINT32_MAX` can't be used as size for arrays, but I'd like to know why if that is the case.

https://github.com/llvm/llvm-project/pull/175848