[llvm] [AMDGPU][Verifier] Check address space of `alloca` instruction (PR #135820)

[Nikita Popov via llvm-commits]

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@@ -4395,6 +4395,11 @@ void Verifier::visitAllocaInst(AllocaInst &AI) {
     verifySwiftErrorValue(&AI);
   }
 
+  if (TT.isAMDGPU()) {
+    Check(AI.getAddressSpace() == AMDGPUAS::PRIVATE_ADDRESS,
+          "alloca on amdgpu must be in addrspace(5)", &AI);
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nikic wrote:

I'm fine with leaving it at that for now.

https://github.com/llvm/llvm-project/pull/135820