gcc/testsuite/gcc.target/i386/vect-mulv8qi.c

   1 /* { dg-do compile { target { ! ia32 } } } */
   2 /* { dg-options "-O2 -ftree-vectorize -msse2" } */
   3
   4 #define N 8
   5
   6 unsigned char ur[N], ua[N], ub[N];
   7
   8 void mul (void)
   9 {
  10   int i;
  11
  12   for (i = 0; i < N; i++)
  13     ur[i] = ua[i] * ub[i];
  14 }
  15
  16 void mul_slp (void)
  17 {
  18   ur[0] = ua[0] * ub[0];
  19   ur[1] = ua[1] * ub[1];
  20   ur[2] = ua[2] * ub[2];
  21   ur[3] = ua[3] * ub[3];
  22   ur[4] = ua[4] * ub[4];
  23   ur[5] = ua[5] * ub[5];
  24   ur[6] = ua[6] * ub[6];
  25   ur[7] = ua[7] * ub[7];
  26 }
  27
  28 /* { dg-final { scan-assembler-times "pmullw" 2 } } */