[llvm] [NVPTX] Check Before inserting AddrSpaceCastInst in NVPTXLoweringAlloca (PR #106127)

[weiwei chen via llvm-commits]

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@@ -17,7 +17,21 @@ define void @kernel() {
   ret void
 }
 
+define void @alloc_already_in_addrspace5() {
+; LABEL: @lower_alloca_addrspace5
+; PTX-LABEL: .visible .func alloc_already_in_addrspace5(
+  %A = alloca i32, addrspace(5)
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weiweichen wrote:

Adding this test to make sure the newly added logic is working correctly (instead of asserting). I don't have too much understanding with the optimization tradeoff you mentioned here so I'll defer it to your best judgement. Just wanna make sure if there is any action items I shall take for this PR specifically wrt this test? 🙏

https://github.com/llvm/llvm-project/pull/106127