From b2ce3eedb9f3d9cee82525c9f29c2d1f42ba58c7 Mon Sep 17 00:00:00 2001
From: Scott McKay <skottmckay@gmail.com>
Date: Mon, 15 Jan 2024 15:09:49 +1000
Subject: [PATCH] Fix build error for CoreML Split op (#19099)

### Description
<!-- Describe your changes. -->
The `split` input of the Split op is int64_t. Fixing that resolves a
type mismatch build error on Windows when CoreML is enabled (for
debugging the partitioning code).

### Motivation and Context
<!-- - Why is this change required? What problem does it solve?
- If it fixes an open issue, please link to the issue here. -->
Fix build error

---------

Co-authored-by: Edward Chen <18449977+edgchen1@users.noreply.github.com>
---
 .../core/providers/coreml/builders/impl/split_op_builder.cc   | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/onnxruntime/core/providers/coreml/builders/impl/split_op_builder.cc b/onnxruntime/core/providers/coreml/builders/impl/split_op_builder.cc
index 815f68128f..56c87c8831 100644
--- a/onnxruntime/core/providers/coreml/builders/impl/split_op_builder.cc
+++ b/onnxruntime/core/providers/coreml/builders/impl/split_op_builder.cc
@@ -139,8 +139,8 @@ bool SplitOpBuilder::IsOpSupportedImpl(const Node& node, const OpBuilderInputPar
     }
     const auto& splits_tensor = *initializers.at(input_defs[1]->Name());
     Initializer unpacked_tensor(splits_tensor);
-    auto splits_span = unpacked_tensor.DataAsSpan<uint64_t>();
-    int sum_of_splits = std::accumulate(splits_span.begin(), splits_span.end(), 0);
+    auto splits_span = unpacked_tensor.DataAsSpan<int64_t>();
+    int64_t sum_of_splits = std::accumulate(splits_span.begin(), splits_span.end(), int64_t{0});
     if (sum_of_splits != split_dims_at_axis) {
       LOGS(logger, VERBOSE) << "Mismatch between the sum of 'split'. Expected: "
                             << split_dims_at_axis