1 /* PR rtl-optimization/17853 */ 2 /* Contributed by Stuart Hastings <stuart@apple.com> */ 3 /* { dg-do compile } */ 4 /* { dg-options "-O2 -mmmx" } */ 5 #include <mmintrin.h> 6 #include <stdlib.h> 7 8 __m64 global_mask; 9 main()10int main() 11 { 12 __m64 zero = _mm_setzero_si64(); 13 __m64 mask = _mm_cmpeq_pi8( zero, zero ); 14 mask = _mm_unpacklo_pi8( mask, zero ); 15 global_mask = mask; 16 return 0; 17 } 18 19