[llvm] [SPIRV] Do not use OpTypeRuntimeArray in Kernel env. (PR #149522)

[Nathan Gauër via llvm-commits]

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@@ -2367,6 +2371,29 @@ void SPIRVEmitIntrinsics::applyDemangledPtrArgTypes(IRBuilder<> &B) {
   }
 }
 
+GetElementPtrInst *
+SPIRVEmitIntrinsics::simplifyZeroLengthArrayGepInst(GetElementPtrInst *GEP) {
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Keenuts wrote:

I think this is OK for us:
 - `RWStructuredBuffer` uses `[0 x T]`, but it never gets converted to a GEP
 - unbounded arrays are not allowed inside those buffers so no GEP with `[0 x T]`
 - `RWStructuredBuffer arrayOfBuffer[]` is not implemented yet, but would probably not use an llvm runtime array?
 
@s-perron am I missing something?

https://github.com/llvm/llvm-project/pull/149522