Update on "std/var: Deprecate default correction value"

[ghstack-poisoned]
pytorch · peterbell10 · Apr 9, 2021 · Apr 13, 2021 · Apr 15, 2021 · Apr 15, 2021
commit 5845b5c093cb14a78a2baf6b0ba491805629bc49
diff --git a/aten/src/ATen/native/ReduceOps.cpp b/aten/src/ATen/native/ReduceOps.cpp
@@ -1308,12 +1308,9 @@ static std::tuple<Tensor&, Tensor&> std_var_mean_out(
               fname, " only supports strided layout, got: ", self.layout());
   TORCH_CHECK(at::isFloatingType(self.scalar_type()) || at::isComplexType(self.scalar_type()),
               fname, " only support floating point and complex dtypes");
-  TORCH_CHECK(result1.scalar_type() == result2.scalar_type(),
-           "provided by result1 dtype must match dtype of result2. Got ",
-           toString(result1.scalar_type()),
-           " and ",
-           toString(result2.scalar_type()),
-           ".");
+  TORCH_CHECK(result1.scalar_type() == c10::toValueType(result2.scalar_type()),
+              fname, " expected result1 to be real and match the precision of result2. Got ",
+              result1.scalar_type(), " and ", result2.scalar_type(), ".");
   if (!correction_opt.has_value()) {
     TORCH_WARN_ONCE(
         fname, ": the default for the correction parameter is deprecated. ",