gcc/testsuite/gcc.target/aarch64/sve/slp_6_run.c

   1 /* { dg-do run { target aarch64_sve_hw } } */
   2 /* { dg-options "-O2 -ftree-vectorize -ffast-math" } */
   3
   4 #include "slp_6.c"
   5
   6 #define N (77 * 3)
   7
   8 #define HARNESS(TYPE)                                   \
   9   {                                                     \
  10     TYPE a[N], b[3] = { 40, 22, 75 };                   \
  11     for (unsigned int i = 0; i < N; ++i)                \
  12       {                                                 \
  13         a[i] = i * 2 + i % 5;                           \
  14         asm volatile ("" ::: "memory");                 \
  15       }                                                 \
  16     vec_slp_##TYPE (a, b, N / 3);                       \
  17     TYPE x0 = 40;                                       \
  18     TYPE x1 = 22;                                       \
  19     TYPE x2 = 75;                                       \
  20     for (unsigned int i = 0; i < N; i += 3)             \
  21       {                                                 \
  22         x0 += a[i];                                     \
  23         x1 += a[i + 1];                                 \
  24         x2 += a[i + 2];                                 \
  25         asm volatile ("" ::: "memory");                 \
  26       }                                                 \
  27     /* _Float16 isn't precise enough for this.  */      \
  28     if ((TYPE) 0x1000 + 1 != (TYPE) 0x1000              \
  29         && (x0 != b[0] || x1 != b[1] || x2 != b[2]))    \
  30       __builtin_abort ();                               \
  31   }
  32
  33 int __attribute__ ((optimize (1)))
  34 main (void)
  35 {
  36   TEST_ALL (HARNESS)
  37 }