tools/qa/cppunit/test_cpu_runtime_detection_SSSE3_check.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #include <sal/types.h>
  11 #include <tools/simdsupport.hxx>
  12
  13 #include <cppunit/TestAssert.h>
  14 #include <cppunit/TestFixture.h>
  15 #include <cppunit/extensions/HelperMacros.h>
  16 #include <cppunit/plugin/TestPlugIn.h>
  17
  18 #include "test_cpu_runtime_detection_x86_checks.hxx"
  19
  20 /* WARNING: This file is compiled with SSSE3 support, don't call
  21  * any function without checking cpuid to check the CPU can actually
  22  * handle it.
  23  */
  24 void CpuRuntimeDetectionX86Checks::checkSSSE3()
  25 {
  26 #ifdef LO_SSSE3_AVAILABLE
  27     // Try some SSSE3 intrinsics calculation
  28     __m128i a = _mm_set1_epi32(3);
  29     __m128i b = _mm_set1_epi32(3);
  30     __m128i c = _mm_maddubs_epi16(a, b);
  31
  32     // Check result is 9
  33     CPPUNIT_ASSERT_EQUAL(0xFFFF, _mm_movemask_epi8(_mm_cmpeq_epi32(c, _mm_set1_epi32(9))));
  34 #endif
  35 }
  36
  37 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */