[MLIR] should use dso_local

Author: ghehg

mlir/lib/Target/LLVMIR/ModuleImport.cpp

@@ -2106,7 +2106,7 @@ LogicalResult ModuleImport::processFunction(llvm::Function *func) {
       iface.isConvertibleIntrinsic(func->getIntrinsicID()))
     return success();
 
-  bool dsoLocal = func->hasLocalLinkage();
+  bool dsoLocal = func->isDSOLocal();
   CConv cconv = convertCConvFromLLVM(func->getCallingConv());
 
   // Insert the function at the end of the module.

mlir/test/Target/LLVMIR/Import/function-attributes-generic.ll

@@ -7,3 +7,13 @@
 ; CHECK-NOT:  res_attrs
 ; CHECK-SAME:  }>
 declare ptr @func_no_param_attrs()
+
+; Ensure that we have dso_local
+; CHECK: "llvm.func"()
+; CHECK-SAME: <{
+; CHECK-SAME: dso_local
+; CHECK-SAME: "dsolocal_func"
+; CHECK-SAME:  }>
+define dso_local void @dsolocal_func() {
+  ret void
+}