24 lines
498 B
C
24 lines
498 B
C
/* Check if system supports SIMD. Copied from gcc.dg/vect/tree-vect.h. */
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#include <signal.h>
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extern "C" void abort (void);
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extern "C" void exit (int);
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void
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sig_ill_handler (int sig)
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{
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exit(0);
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}
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void check_vect (void)
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{
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signal(SIGILL, sig_ill_handler);
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#if defined(__i386__) || defined(__x86_64__)
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/* SSE2 instruction: movsd %xmm0,%xmm0 */
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asm volatile (".byte 0xf2,0x0f,0x10,0xc0");
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#elif defined(__sparc__)
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asm volatile (".word\t0x81b007c0");
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#endif
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signal (SIGILL, SIG_DFL);
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}
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