gcc/testsuite/gcc.dg/vect/pr37474.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target vect_int } */
   3
   4 #include <stdarg.h>
   5
   6 #define M00 100
   7 #define M10 216
   8 #define M01 1322
   9 #define M11 13
  10 #define M02 74
  11 #define M12 191
  12
  13 #define N 16
  14
  15 void foo (unsigned int *__restrict__ pInput, unsigned int *__restrict__ pOutput)
  16 {
  17   unsigned int i, a, b, c, d, e, f;
  18
  19   for (i = 0; i < N / 3; i++)
  20     {
  21        a = *pInput++;
  22        b = *pInput++;
  23        c = *pInput++;
  24        d = *pInput++;
  25        e = *pInput++;
  26        f = *pInput++;
  27
  28        a = a + d;
  29        b = b + e;
  30        c = c + f;
  31
  32        *pOutput++ = M00 * a + M01 * b + M02 * c;
  33        *pOutput++ = M10 * a + M11 * b + M12 * c;
  34     }
  35 }
  36
  37