(root)/
glibc-2.38/
sysdeps/
x86/
fpu/
test-fenv-clear-sse.c
       1  /* Test fesetenv (FE_DFL_ENV) and fesetenv (FE_NOMASK_ENV) clear
       2     exceptions (bug 19181).  SSE version.
       3     Copyright (C) 2015-2023 Free Software Foundation, Inc.
       4     This file is part of the GNU C Library.
       5  
       6     The GNU C Library is free software; you can redistribute it and/or
       7     modify it under the terms of the GNU Lesser General Public
       8     License as published by the Free Software Foundation; either
       9     version 2.1 of the License, or (at your option) any later version.
      10  
      11     The GNU C Library is distributed in the hope that it will be useful,
      12     but WITHOUT ANY WARRANTY; without even the implied warranty of
      13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14     Lesser General Public License for more details.
      15  
      16     You should have received a copy of the GNU Lesser General Public
      17     License along with the GNU C Library; if not, see
      18     <https://www.gnu.org/licenses/>.  */
      19  
      20  #include <cpuid.h>
      21  #include <stdbool.h>
      22  
      23  static bool
      24  have_sse2 (void)
      25  {
      26    unsigned int eax, ebx, ecx, edx;
      27  
      28    if (!__get_cpuid (1, &eax, &ebx, &ecx, &edx))
      29      return false;
      30  
      31    return (edx & bit_SSE2) != 0;
      32  }
      33  
      34  #define CHECK_CAN_TEST						\
      35    do								\
      36      {								\
      37        if (!have_sse2 ())					\
      38  	{							\
      39  	  puts ("CPU does not support SSE2, cannot test");	\
      40  	  return 0;						\
      41  	}							\
      42      }								\
      43    while (0)
      44  
      45  #include <test-fenv-clear-main.c>