ceph/src/boost/libs/uuid/test/test_msvc_simd_bug981648_foo.cpp

   1 /*
   2 * Copyright 2014 Andrey Semashev
   3 *
   4 * Distributed under the Boost Software License, Version 1.0.
   5 * See accompanying file LICENSE_1_0.txt or copy at
   6 * http://www.boost.org/LICENSE_1_0.txt
   7 */
   8 /*
   9 * This is a part of the test for a workaround for MSVC 12 (VS2013) optimizer bug
  10 * which causes incorrect SIMD code generation for operator==. See:
  11 *
  12 * https://svn.boost.org/trac/boost/ticket/8509#comment:3
  13 * https://connect.microsoft.com/VisualStudio/feedbackdetail/view/981648#tabs
  14 *
  15 * The file contains the function that actually causes the crash. Reproduces only
  16 * in Release x64 builds.
  17 */
  18 #include <cstdio>
  19 #include "test_msvc_simd_bug981648.hpp"
  20 void mp_grid_update_marker_parameters(headerProperty* header_prop, my_obj &current_marker)
  21 {
  22 headerProperty *old_header_prop = NULL;
  23 my_obj *p = dynamic_cast<my_obj*>(header_prop);
  24 /*
  25 * This != statement crashes with a GP.
  26 * */
  27 if (p != NULL && (current_marker.get_id() != p->get_marker_id())) {
  28 std::printf("works okay, if it reaches this printf: %p\n", reinterpret_cast<void *>(p));
  29 old_header_prop = header_prop;
  30 if (old_header_prop == 0) { fprintf(stderr, "ouch"); }
  31 }
  32 }