gcc/testsuite/g++.dg/ext/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
   6 #ifdef __cplusplus
   7 "C"
   8 #endif
   9 void exit(int);
  10
  11 void
  12 sig_ill_handler (int sig)
  13 {
  14     exit (0);
  15 }
  16
  17 void altivec_check(void) {
  18
  19   /* Exit on systems without AltiVec.  */
  20   signal (SIGILL, sig_ill_handler);
  21 #ifdef __MACH__
  22   asm volatile ("vor v0,v0,v0");
  23 #else
  24   asm volatile ("vor 0,0,0");
  25 #endif
  26   signal (SIGILL, SIG_DFL);
  27 }