gcc/testsuite/gcc.target/i386/pr70251.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O3 -mavx512bw" } */
   3 /* { dg-require-effective-target avx512bw } */
   4
   5 #define AVX512BW
   6 #include "avx512f-helper.h"
   7
   8 unsigned long long int
   9 hash(unsigned long long int seed, unsigned long long int v)
  10 {
  11   return seed ^ (v + 0x9e3779b9 + (seed<<6) + (seed>>2));
  12 }
  13
  14 unsigned int a [100];
  15 signed char b [100];
  16 signed char c [100];
  17
  18 void
  19 init ()
  20 {
  21   for (int i = 0; i < 100; ++i)
  22     {
  23       a [i] = 1000L;
  24       b [i] = 10;
  25       c [i] = 5;
  26     }
  27 }
  28
  29 void
  30 foo ()
  31 {
  32   for (int i = 0; i < 100; ++i)
  33     b [i] = (!b [i] ^ (a [i] >= b [i])) + c [i];
  34 }
  35
  36 unsigned long long int
  37 checksum ()
  38 {
  39   unsigned long long int seed = 0ULL;
  40   for (int i = 0; i < 100; ++i)
  41     seed = hash (seed, b[i]);
  42   return seed;
  43 }
  44
  45 void
  46 TEST ()
  47 {
  48   init ();
  49   foo ();
  50   if (checksum () != 5785906989299578598ULL)
  51     __builtin_abort ();
  52 }