1 /* Check if system supports SIMD.  Copied from gcc.dg/vect/tree-vect.h.  */
2 #include <signal.h>
3 
4 extern "C" void abort (void);
5 extern "C" void exit (int);
6 
7 void
sig_ill_handler(int sig)8 sig_ill_handler (int sig)
9 {
10   exit(0);
11 }
12 
check_vect(void)13 void check_vect (void)
14 {
15   signal(SIGILL, sig_ill_handler);
16 #if defined(__i386__) || defined(__x86_64__)
17   /* SSE2 instruction: movsd %xmm0,%xmm0 */
18   asm volatile (".byte 0xf2,0x0f,0x10,0xc0");
19 #elif defined(__sparc__)
20   asm volatile (".word\t0x81b007c0");
21 #endif
22   signal (SIGILL, SIG_DFL);
23 }
24