modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/execute/simd-2.c (about)

     1  /* 
     2     Purpose: Test generic SIMD support, V8HImode.  This test should work
     3     regardless of if the target has SIMD instructions.
     4  */
     5  
     6  typedef short __attribute__((vector_size (16))) vecint;
     7  
     8  vecint i = { 150, 100, 150, 200, 0, 0, 0, 0 };
     9  vecint j = { 10, 13, 20, 30, 1, 1, 1, 1 };
    10  vecint k;
    11  
    12  union {
    13    vecint v;
    14    short i[8];
    15  } res;
    16  
    17  /* This should go away once we can use == and != on vector types.  */
    18  void
    19  verify (int a1, int a2, int a3, int a4,
    20  	int b1, int b2, int b3, int b4)
    21  {
    22    if (a1 != b1
    23        || a2 != b2
    24        || a3 != b3
    25        || a4 != b4)
    26      abort ();
    27  }
    28  
    29  int
    30  main ()
    31  {
    32    k = i + j;
    33    res.v = k;
    34  
    35    verify (res.i[0], res.i[1], res.i[2], res.i[3], 160, 113, 170, 230);
    36  
    37    k = i * j;
    38    res.v = k;
    39  
    40    verify (res.i[0], res.i[1], res.i[2], res.i[3], 1500, 1300, 3000, 6000);
    41  
    42    k = i / j;
    43    res.v = k;
    44  
    45    verify (res.i[0], res.i[1], res.i[2], res.i[3], 15, 7, 7, 6);
    46  
    47    k = i & j;
    48    res.v = k;
    49  
    50    verify (res.i[0], res.i[1], res.i[2], res.i[3], 2, 4, 20, 8);
    51  
    52    k = i | j;
    53    res.v = k;
    54  
    55    verify (res.i[0], res.i[1], res.i[2], res.i[3], 158, 109, 150, 222);
    56  
    57    k = i ^ j;
    58    res.v = k;
    59  
    60    verify (res.i[0], res.i[1], res.i[2], res.i[3], 156, 105, 130, 214);
    61  
    62    k = -i;
    63    res.v = k;
    64    verify (res.i[0], res.i[1], res.i[2], res.i[3],
    65  	  -150, -100, -150, -200);
    66  
    67    k = ~i;
    68    res.v = k;
    69    verify (res.i[0], res.i[1], res.i[2], res.i[3], -151, -101, -151, -201);
    70  
    71    exit (0);
    72  }