gcc/testsuite/gcc.target/i386/pr85693.c

   1 /* { dg-do compile }
   2 /* { dg-options "-msse2 -O2 -ftree-vectorize" } */
   3
   4 #define N 1024
   5
   6 int abs (int);
   7
   8 unsigned char pix1[N], pix2[N];
   9
  10 int foo (void)
  11 {
  12   int i_sum = 0;
  13   int i;
  14
  15   for (i = 0; i < N; i++)
  16     i_sum += abs (pix1[i] - pix2[i]);
  17
  18   return i_sum;
  19 }
  20
  21 /* { dg-final { scan-assembler "psadbw" } } */