From d3a45feea0a5c258b3727f3bc115993ddd467e50 Mon Sep 17 00:00:00 2001
From: Matthias Maier <tamiko@43-1.org>
Date: Thu, 5 Sep 2019 18:15:03 -0500
Subject: [PATCH] add a test

---
 tests/base/utilities_02b.cc            | 67 ++++++++++++++++++++++++++
 tests/base/utilities_02b.output        |  7 +++
 tests/base/utilities_02b.output.avx    | 19 ++++++++
 tests/base/utilities_02b.output.avx512 | 25 ++++++++++
 tests/base/utilities_02b.output.sse2   | 13 +++++
 5 files changed, 131 insertions(+)
 create mode 100644 tests/base/utilities_02b.cc
 create mode 100644 tests/base/utilities_02b.output
 create mode 100644 tests/base/utilities_02b.output.avx
 create mode 100644 tests/base/utilities_02b.output.avx512
 create mode 100644 tests/base/utilities_02b.output.sse2

diff --git a/tests/base/utilities_02b.cc b/tests/base/utilities_02b.cc
new file mode 100644
index 0000000000..b78cc7968a
--- /dev/null
+++ b/tests/base/utilities_02b.cc
@@ -0,0 +1,67 @@
+// ---------------------------------------------------------------------
+//
+// Copyright (C) 2015 - 2019 by the deal.II authors
+//
+// This file is part of the deal.II library.
+//
+// The deal.II library is free software; you can use it, redistribute
+// it, and/or modify it under the terms of the GNU Lesser General
+// Public License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+// The full text of the license can be found in the file LICENSE.md at
+// the top level directory of deal.II.
+//
+// ---------------------------------------------------------------------
+
+
+// test Utilities::fixed_power for vectorized array
+
+#include <deal.II/base/utilities.h>
+#include <deal.II/base/vectorization.h>
+
+#include "../tests.h"
+
+template <typename VectorizedArrayType>
+void
+do_test(const VectorizedArrayType array)
+{
+  deallog << "  test " << VectorizedArrayType::n_array_elements
+          << " array elements" << std::endl;
+
+  auto exponentiated_array = Utilities::fixed_power<3>(array);
+
+  for (unsigned int i = 0; i < VectorizedArrayType::n_array_elements; i++)
+    deallog << exponentiated_array[i] << " ";
+  deallog << std::endl;
+
+  exponentiated_array = Utilities::fixed_power<-3>(array);
+
+  for (unsigned int i = 0; i < VectorizedArrayType::n_array_elements; i++)
+    deallog << exponentiated_array[i] << " ";
+  deallog << std::endl;
+}
+
+
+int
+main()
+{
+  initlog();
+
+#if DEAL_II_COMPILER_VECTORIZATION_LEVEL >= 3 && defined(__AVX512F__)
+  do_test(VectorizedArray<double, 8>(2.0));
+  do_test(VectorizedArray<float, 16>(2.0));
+#endif
+
+#if DEAL_II_COMPILER_VECTORIZATION_LEVEL >= 2 && defined(__AVX__)
+  do_test(VectorizedArray<double, 4>(2.0));
+  do_test(VectorizedArray<float, 8>(2.0));
+#endif
+
+#if DEAL_II_COMPILER_VECTORIZATION_LEVEL >= 1 && defined(__SSE2__)
+  do_test(VectorizedArray<double, 2>(2.0));
+  do_test(VectorizedArray<float, 4>(2.0));
+#endif
+
+  do_test(VectorizedArray<double, 1>(2.0));
+  do_test(VectorizedArray<float, 1>(2.0));
+}
diff --git a/tests/base/utilities_02b.output b/tests/base/utilities_02b.output
new file mode 100644
index 0000000000..9e14554795
--- /dev/null
+++ b/tests/base/utilities_02b.output
@@ -0,0 +1,7 @@
+
+DEAL::  test 1 array elements
+DEAL::8.00000 
+DEAL::0.125000 
+DEAL::  test 1 array elements
+DEAL::8.00000 
+DEAL::0.125000 
diff --git a/tests/base/utilities_02b.output.avx b/tests/base/utilities_02b.output.avx
new file mode 100644
index 0000000000..7421f2f936
--- /dev/null
+++ b/tests/base/utilities_02b.output.avx
@@ -0,0 +1,19 @@
+
+DEAL::  test 4 array elements
+DEAL::8.00000 8.00000 8.00000 8.00000 
+DEAL::0.125000 0.125000 0.125000 0.125000 
+DEAL::  test 8 array elements
+DEAL::8.00000 8.00000 8.00000 8.00000 8.00000 8.00000 8.00000 8.00000 
+DEAL::0.125000 0.125000 0.125000 0.125000 0.125000 0.125000 0.125000 0.125000 
+DEAL::  test 2 array elements
+DEAL::8.00000 8.00000 
+DEAL::0.125000 0.125000 
+DEAL::  test 4 array elements
+DEAL::8.00000 8.00000 8.00000 8.00000 
+DEAL::0.125000 0.125000 0.125000 0.125000 
+DEAL::  test 1 array elements
+DEAL::8.00000 
+DEAL::0.125000 
+DEAL::  test 1 array elements
+DEAL::8.00000 
+DEAL::0.125000 
diff --git a/tests/base/utilities_02b.output.avx512 b/tests/base/utilities_02b.output.avx512
new file mode 100644
index 0000000000..e26eefc661
--- /dev/null
+++ b/tests/base/utilities_02b.output.avx512
@@ -0,0 +1,25 @@
+
+DEAL::  test 8 array elements
+DEAL::8.00000 8.00000 8.00000 8.00000 8.00000 8.00000 8.00000 8.00000 
+DEAL::0.125000 0.125000 0.125000 0.125000 0.125000 0.125000 0.125000 0.125000 
+DEAL::  test 16 array elements
+DEAL::8.00000 8.00000 8.00000 8.00000 8.00000 8.00000 8.00000 8.00000 8.00000 8.00000 8.00000 8.00000 8.00000 8.00000 8.00000 8.00000 
+DEAL::0.125000 0.125000 0.125000 0.125000 0.125000 0.125000 0.125000 0.125000 0.125000 0.125000 0.125000 0.125000 0.125000 0.125000 0.125000 0.125000 
+DEAL::  test 4 array elements
+DEAL::8.00000 8.00000 8.00000 8.00000 
+DEAL::0.125000 0.125000 0.125000 0.125000 
+DEAL::  test 8 array elements
+DEAL::8.00000 8.00000 8.00000 8.00000 8.00000 8.00000 8.00000 8.00000 
+DEAL::0.125000 0.125000 0.125000 0.125000 0.125000 0.125000 0.125000 0.125000 
+DEAL::  test 2 array elements
+DEAL::8.00000 8.00000 
+DEAL::0.125000 0.125000 
+DEAL::  test 4 array elements
+DEAL::8.00000 8.00000 8.00000 8.00000 
+DEAL::0.125000 0.125000 0.125000 0.125000 
+DEAL::  test 1 array elements
+DEAL::8.00000 
+DEAL::0.125000 
+DEAL::  test 1 array elements
+DEAL::8.00000 
+DEAL::0.125000 
diff --git a/tests/base/utilities_02b.output.sse2 b/tests/base/utilities_02b.output.sse2
new file mode 100644
index 0000000000..f95e20fe95
--- /dev/null
+++ b/tests/base/utilities_02b.output.sse2
@@ -0,0 +1,13 @@
+
+DEAL::  test 2 array elements
+DEAL::8.00000 8.00000 
+DEAL::0.125000 0.125000 
+DEAL::  test 4 array elements
+DEAL::8.00000 8.00000 8.00000 8.00000 
+DEAL::0.125000 0.125000 0.125000 0.125000 
+DEAL::  test 1 array elements
+DEAL::8.00000 
+DEAL::0.125000 
+DEAL::  test 1 array elements
+DEAL::8.00000 
+DEAL::0.125000 
-- 
2.39.5