gcc/testsuite/gcc.target/i386/pr42542-4.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target sse4 } */
   3 /* { dg-options "-O1 -msse4.2 -ftree-vectorize" } */
   4
   5 #include "sse4_2-check.h"
   6
   7 unsigned long long v1[] __attribute__ ((aligned(16))) =
   8 {
   9   0x8000000000000000ULL, 2,
  10   3, 0xd000000000000000ULL
  11 };
  12 unsigned long long v2[] __attribute__ ((aligned(16))) =
  13 {
  14   4, 0xb000000000000000ULL,
  15   0xf000000000000000ULL, 6
  16 };
  17
  18 unsigned long long max[] =
  19 {
  20   0x8000000000000000ULL, 0xb000000000000000ULL,
  21   0xf000000000000000ULL, 0xd000000000000000ULL
  22 };
  23
  24 unsigned long long min[] =
  25 {
  26   4, 2,
  27   3, 6
  28 };
  29
  30 unsigned long long res[4] __attribute__ ((aligned(16)));
  31
  32 extern void abort (void);
  33
  34 void
  35 find_max (void)
  36 {
  37   int i;
  38
  39   for (i = 0; i < 4; i++)
  40     res[i] = v1[i] < v2[i] ? v2[i] : v1[i];
  41 }
  42
  43 void
  44 find_min (void)
  45 {
  46   int i;
  47
  48   for (i = 0; i < 4; i++)
  49     res[i] = v1[i] > v2[i] ? v2[i] : v1[i];
  50 }
  51
  52 static void
  53 sse4_2_test (void)
  54 {
  55   int i;
  56   int err = 0;
  57
  58   find_max ();
  59   for (i = 0; i < 4; i++)
  60     if (res[i] != max[i])
  61       err++;
  62
  63   find_min ();
  64   for (i = 0; i < 4; i++)
  65     if (res[i] != min[i])
  66       err++;
  67
  68   if (err)
  69     abort ();
  70 }