[llvm] [NVVM] Upgrade nvvm.ptr.* intrinics to addrspace cast (PR #109710)

[Artem Belevich via llvm-commits]

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@@ -1153,30 +1153,28 @@ void NVPTXDAGToDAGISel::SelectAddrSpaceCast(SDNode *N) {
       Opc = TM.is64Bit() ? NVPTX::cvta_to_global_64 : NVPTX::cvta_to_global;
       break;
     case ADDRESS_SPACE_SHARED:
-      Opc = TM.is64Bit() ? (TM.getPointerSizeInBits(DstAddrSpace) == 32
-                                ? NVPTX::cvta_to_shared_3264
-                                : NVPTX::cvta_to_shared_64)
-                         : NVPTX::cvta_to_shared;
+      Opc = TM.is64Bit() ? NVPTX::cvta_to_shared_64 : NVPTX::cvta_to_shared;
       break;
     case ADDRESS_SPACE_CONST:
-      Opc = TM.is64Bit() ? (TM.getPointerSizeInBits(DstAddrSpace) == 32
-                                ? NVPTX::cvta_to_const_3264
-                                : NVPTX::cvta_to_const_64)
-                         : NVPTX::cvta_to_const;
+      Opc = TM.is64Bit() ? NVPTX::cvta_to_const_64 : NVPTX::cvta_to_const;
       break;
     case ADDRESS_SPACE_LOCAL:
-      Opc = TM.is64Bit() ? (TM.getPointerSizeInBits(DstAddrSpace) == 32
-                                ? NVPTX::cvta_to_local_3264
-                                : NVPTX::cvta_to_local_64)
-                         : NVPTX::cvta_to_local;
+      Opc = TM.is64Bit() ? NVPTX::cvta_to_local_64 : NVPTX::cvta_to_local;
       break;
     case ADDRESS_SPACE_PARAM:
-      Opc = TM.is64Bit() ? NVPTX::nvvm_ptr_gen_to_param_64
-                         : NVPTX::nvvm_ptr_gen_to_param;
+      Opc = TM.is64Bit() ? NVPTX::IMOV64rr : NVPTX::IMOV32rr;
       break;
     }
-    ReplaceNode(N, CurDAG->getMachineNode(Opc, SDLoc(N), N->getValueType(0),
-                                          Src));
+
+    SDNode *CVTA = CurDAG->getMachineNode(Opc, DL, N->getValueType(0), Src);
+    if (TM.is64Bit() && TM.getPointerSizeInBits(DstAddrSpace) == 32) {
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Artem-B wrote:

Nice. It's a cleaner approach than having `_3264` conversion per AS.

https://github.com/llvm/llvm-project/pull/109710