gcc/testsuite/gcc.c-torture/execute/simd-5.c

   1 /* Test saving and restoring of SIMD registers.  */
   2
   3 void abort (void);
   4
   5 typedef short Q __attribute__((vector_size(8)));
   6
   7 Q q1 = {1, 2}, q2 = {3, 4}, q3 = {5, 6}, q4 = {7, 8};
   8
   9 Q w1, w2, w3, w4;
  10 Q z1, z2, z3, z4;
  11
  12 volatile int dummy;
  13
  14 void  __attribute__((__noinline__))
  15 func0 (void)
  16 {
  17   dummy = 1;
  18 }
  19
  20 void __attribute__((__noinline__))
  21 func1 (void)
  22 {
  23   Q a, b;
  24   a = q1 * q2;
  25   b = q3 * q4;
  26   w1 = a;
  27   w2 = b;
  28   func0 ();
  29   w3 = a;
  30   w4 = b;
  31 }
  32
  33 void __attribute__((__noinline__))
  34 func2 (void)
  35 {
  36   Q a, b;
  37   a = q1 + q2;
  38   b = q3 - q4;
  39   z1 = a;
  40   z2 = b;
  41   func1 ();
  42   z3 = a;
  43   z4 = b;
  44 }
  45
  46 int
  47 main (void)
  48 {
  49   func2 ();
  50
  51   if (__builtin_memcmp (&w1, &w3, sizeof (Q)) != 0)
  52     abort ();
  53   if (__builtin_memcmp (&w2, &w4, sizeof (Q)) != 0)
  54     abort ();
  55   if (__builtin_memcmp (&z1, &z3, sizeof (Q)) != 0)
  56     abort ();
  57   if (__builtin_memcmp (&z2, &z4, sizeof (Q)) != 0)
  58     abort ();
  59
  60   return 0;
  61 }