| /* A runtime check for AltiVec capability. */ | |
| /* Contributed by Ziemowit Laski <zlaski@apple.com> */ | |
| #include <signal.h> | |
| extern | |
| #ifdef __cplusplus | |
| "C" | |
| #endif | |
| void exit(int); | |
| void | |
| sig_ill_handler (int sig) | |
| { | |
| exit (0); | |
| } | |
| void altivec_check(void) { | |
| /* Exit on systems without AltiVec. */ | |
| signal (SIGILL, sig_ill_handler); | |
| #ifdef __MACH__ | |
| asm volatile ("vor v0,v0,v0"); | |
| #else | |
| asm volatile ("vor 0,0,0"); | |
| #endif | |
| signal (SIGILL, SIG_DFL); | |
| } |