--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/tesseract/src/arch/dotproduct.cpp	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,33 @@
+///////////////////////////////////////////////////////////////////////
+// File:        dotproduct.cpp
+// Description: Native dot product function.
+//
+// (C) Copyright 2018, Google Inc.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+///////////////////////////////////////////////////////////////////////
+
+#include "dotproduct.h"
+
+namespace tesseract {
+
+// Computes and returns the dot product of the two n-vectors u and v.
+TFloat DotProductNative(const TFloat *u, const TFloat *v, int n) {
+  TFloat total = 0;
+#if defined(OPENMP_SIMD) || defined(_OPENMP)
+#pragma omp simd reduction(+:total)
+#endif
+  for (int k = 0; k < n; k++) {
+    total += u[k] * v[k];
+  }
+  return total;
+}
+
+} // namespace tesseract