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/* { dg-do compile } */
/* { dg-options "-O2 -mmmx" } */

typedef short mmxw  __attribute__ ((vector_size (8)));
typedef int   mmxdw __attribute__ ((vector_size (8)));

mmxdw dw;
mmxw w;

void test()
{
  w+=w;
  dw= (mmxdw)w;
}

/* { dg-final { scan-assembler-not "%mm" } } */