gcc/testsuite/gcc.target/i386/wmul-2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2" } */
   3
   4 void vec_mpy(int y[], const int x[], int scaler)
   5 {
   6  int i;
   7
   8  for (i = 0; i < 150; i++)
   9    y[i] += (((long long)scaler * x[i]) >> 31);
  10 }
  11
  12 /* { dg-final { scan-assembler-times "imull" 1 } } */