gcc/testsuite/gcc.target/i386/pr42542-2.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O1 -msse2 -ftree-vectorize" } */
   3 /* { dg-require-effective-target sse2 } */
   4
   5 #ifndef CHECK_H
   6 #define CHECK_H "sse2-check.h"
   7 #endif
   8
   9 #ifndef TEST
  10 #define TEST sse2_test
  11 #endif
  12
  13 #include CHECK_H
  14
  15 unsigned short v1[] __attribute__ ((aligned(16))) =
  16 {
  17   0x8000, 0x9000, 1, 10, 0xa000, 0xb000, 2, 20,
  18   3, 30, 0xd000, 0xe000, 0xf000, 0xe000, 25, 30
  19 };
  20 unsigned short v2[] __attribute__ ((aligned(16))) =
  21 {
  22   4, 40, 0xb000, 0x8000, 5, 50, 0xc000, 0xf000,
  23   0xd000, 0xa000, 6, 65, 7, 75, 0xe000, 0xc000
  24 };
  25
  26 unsigned short max[] =
  27 {
  28   0x8000, 0x9000, 0xb000, 0x8000, 0xa000, 0xb000, 0xc000, 0xf000,
  29   0xd000, 0xa000, 0xd000, 0xe000, 0xf000, 0xe000, 0xe000, 0xc000
  30 };
  31
  32 unsigned short min[] =
  33 {
  34   4, 40, 1, 10, 5, 50, 2, 20,
  35   3, 30, 6, 65, 7, 75, 25, 30
  36 };
  37
  38 unsigned short res[16] __attribute__ ((aligned(16)));
  39
  40 extern void abort (void);
  41
  42 void
  43 find_max (void)
  44 {
  45   int i;
  46
  47   for (i = 0; i < 16; i++)
  48     res[i] = v1[i] < v2[i] ? v2[i] : v1[i];
  49 }
  50
  51 void
  52 find_min (void)
  53 {
  54   int i;
  55
  56   for (i = 0; i < 16; i++)
  57     res[i] = v1[i] > v2[i] ? v2[i] : v1[i];
  58 }
  59
  60 static void
  61 TEST (void)
  62 {
  63   int i;
  64   int err = 0;
  65
  66   find_max ();
  67   for (i = 0; i < 16; i++)
  68     if (res[i] != max[i])
  69       err++;
  70
  71   find_min ();
  72   for (i = 0; i < 16; i++)
  73     if (res[i] != min[i])
  74       err++;
  75
  76   if (err)
  77     abort ();
  78 }