gcc/testsuite/gcc.target/i386/pr42542-5.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 long long v1[] __attribute__ ((aligned(16))) =
   8 {
   9   -3, 2, 3, -4
  10 };
  11 long long v2[] __attribute__ ((aligned(16))) =
  12 {
  13   4, -10, -20, 6
  14 };
  15
  16 long long max[] =
  17 {
  18   4, 2, 3, 6
  19 };
  20
  21 long long min[] =
  22 {
  23   -3, -10, -20, -4
  24 };
  25
  26 long long res[4] __attribute__ ((aligned(16)));
  27
  28 extern void abort (void);
  29
  30 void
  31 find_max (void)
  32 {
  33   int i;
  34
  35   for (i = 0; i < 4; i++)
  36     res[i] = v1[i] < v2[i] ? v2[i] : v1[i];
  37 }
  38
  39 void
  40 find_min (void)
  41 {
  42   int i;
  43
  44   for (i = 0; i < 4; i++)
  45     res[i] = v1[i] > v2[i] ? v2[i] : v1[i];
  46 }
  47
  48 static void
  49 sse4_2_test (void)
  50 {
  51   int i;
  52   int err = 0;
  53
  54   find_max ();
  55   for (i = 0; i < 4; i++)
  56     if (res[i] != max[i])
  57       err++;
  58
  59   find_min ();
  60   for (i = 0; i < 4; i++)
  61     if (res[i] != min[i])
  62       err++;
  63
  64   if (err)
  65     abort ();
  66 }