gcc/testsuite/gcc.target/i386/pr70021.c

   1 /* PR target/70021 */
   2 /* { dg-do run } */
   3 /* { dg-require-effective-target avx2 } */
   4 /* { dg-options "-O2 -ftree-vectorize -mavx2 -fdump-tree-vect-details -mtune=skylake" } */
   5
   6 #include "avx2-check.h"
   7
   8 #define N 160
   9 int a[N];
  10 unsigned long long int b[N], c[N], d[N], e[N];
  11
  12 __attribute__((noinline, noclone)) void
  13 foo (void)
  14 {
  15   int i;
  16   for (i = 0; i < N; i += 4)
  17     {
  18       unsigned long long int f = (_Bool) b[i];
  19       unsigned long long int g = c[i] != d[i];
  20       e[i] = g ^ (a[i] & (g << f));
  21     }
  22 }
  23
  24 void
  25 avx2_test ()
  26 {
  27   int i;
  28   for (i = 0; i < N; ++i)
  29     {
  30       a[i] = 1618000128;
  31       b[i] = 10919594786573202791ULL;
  32       c[i] = 2593730175074624973ULL;
  33       d[i] = 7447894520878803661ULL;
  34       e[i] = 14234165565810642243ULL;
  35     }
  36   foo ();
  37   for (i = 0; i < N; ++i)
  38     if (e[i] != ((i & 3) ? 14234165565810642243ULL : 1ULL))
  39       __builtin_abort ();
  40 }
  41
  42 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 2 "vect" } } */