gcc/testsuite/gcc.target/powerpc/altivec_check.h

   1 /* A runtime check for AltiVec capability.  */
   2 /* Contributed by Ziemowit Laski  <zlaski@apple.com>  */
   3
   4 #include <signal.h>
   5 extern void exit (int);
   6 extern void abort (void);
   7
   8 void
   9 sig_ill_handler (int sig)
  10 {
  11     exit (0);
  12 }
  13
  14 void altivec_check(void) {
  15
  16   /* Exit on systems without AltiVec.  */
  17   signal (SIGILL, sig_ill_handler);
  18 #ifdef __MACH__
  19   asm volatile ("vor v0,v0,v0");
  20 #else
  21   asm volatile ("vor 0,0,0");
  22 #endif
  23   signal (SIGILL, SIG_DFL);
  24 }