147020/test.c

   1 #include <stdio.h>
   2 int main()
   3 {
   4         struct {
   5                 unsigned short int cwd;
   6                 unsigned short int swd;
   7                 unsigned short int twd;
   8                 unsigned short int fop;
   9                 long int fip;
  10                 long int fcs;
  11                 long int foo;
  12                 long int fos;
  13                 long int mxcsr;
  14                 long int mxcsr_mask;
  15                 long int st_space[32];
  16                 long int xmm_space[32];
  17                 long int padding[56];
  18         } __attribute__ ((aligned (16))) fxsave;
  19         unsigned long mod = (unsigned long)&fxsave % 16;
  20         printf("fxsave=%p (mod 16 = %lx)\n", &fxsave, mod);
  21         return (mod == 0);
  22 }