gcc/testsuite/gcc.target/i386/pr42542-3.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 char v1[] __attribute__ ((aligned(16))) =
  16 {
  17   0x80, 0xd0, 0x90, 0xa0, 1, 15, 10, 15,
  18   0xa0, 0xc0, 0xb0, 0xf0, 2, 25, 20, 35,
  19   3, 34, 30, 36, 0xd0, 0x80, 0xe0, 0xb0,
  20   0xf0, 0xe0, 0xe0, 0x80, 25, 34, 30, 40
  21 };
  22 unsigned char v2[] __attribute__ ((aligned(16))) =
  23 {
  24   4, 44, 40, 48, 0xb0, 0x80, 0x80, 0x90,
  25   5, 55, 50, 51, 0xc0, 0xb0, 0xf0, 0xd0,
  26   0xd0, 0x80, 0xa0, 0xf0, 6, 61, 65, 68,
  27   7, 76, 75, 81, 0xe0, 0xf0, 0xc0, 0x90
  28 };
  29
  30 unsigned char max[] =
  31 {
  32   0x80, 0xd0, 0x90, 0xa0, 0xb0, 0x80, 0x80, 0x90,
  33   0xa0, 0xc0, 0xb0, 0xf0, 0xc0, 0xb0, 0xf0, 0xd0,
  34   0xd0, 0x80, 0xa0, 0xf0, 0xd0, 0x80, 0xe0, 0xb0,
  35   0xf0, 0xe0, 0xe0, 0x80, 0xe0, 0xf0, 0xc0, 0x90
  36 };
  37
  38 unsigned char min[] =
  39 {
  40   4, 44, 40, 48, 1, 15, 10, 15,
  41   5, 55, 50, 51, 2, 25, 20, 35,
  42   3, 34, 30, 36, 6, 61, 65, 68,
  43   7, 76, 75, 81, 25, 34, 30, 40
  44 };
  45
  46 unsigned char res[32] __attribute__ ((aligned(16)));
  47
  48 extern void abort (void);
  49
  50 void
  51 find_max (void)
  52 {
  53   int i;
  54
  55   for (i = 0; i < 32; i++)
  56     res[i] = v1[i] < v2[i] ? v2[i] : v1[i];
  57 }
  58
  59 void
  60 find_min (void)
  61 {
  62   int i;
  63
  64   for (i = 0; i < 32; i++)
  65     res[i] = v1[i] > v2[i] ? v2[i] : v1[i];
  66 }
  67
  68 static void
  69 TEST (void)
  70 {
  71   int i;
  72   int err = 0;
  73
  74   find_max ();
  75   for (i = 0; i < 32; i++)
  76     if (res[i] != max[i])
  77       err++;
  78
  79   find_min ();
  80   for (i = 0; i < 32; i++)
  81     if (res[i] != min[i])
  82       err++;
  83
  84   if (err)
  85     abort ();
  86 }