diff --git a/mlir/lib/Conversion/GPUCommon/GPUOpsLowering.h b/mlir/lib/Conversion/GPUCommon/GPUOpsLowering.h
--- a/mlir/lib/Conversion/GPUCommon/GPUOpsLowering.h
+++ b/mlir/lib/Conversion/GPUCommon/GPUOpsLowering.h
@@ -123,9 +123,6 @@
         assert(type && type.hasStaticShape() &&
                "unexpected type in attribution");
 
-        // Explicitly drop memory space when lowering private memory
-        // attributions since NVVM models it as `alloca`s in the default
-        // memory space and does not support `alloca`s with addrspace(5).
         auto ptrType = typeConverter.convertType(type.getElementType())
                            .cast<LLVM::LLVMType>()
                            .getPointerTo(AllocaAddrSpace);