gcc/testsuite/gcc.dg/torture/vector-shift2.c

   1 /* { dg-do run } */
   2
   3 #define vector(elcount, type)  \
   4 __attribute__((vector_size((elcount)*sizeof(type)))) type
   5
   6 #define vidx(type, vec, idx) (*((type *) &(vec) + idx))
   7 #define schar signed char
   8 #define uchar unsigned char
   9
  10 #define ch14 1,2,3,4
  11 #define ch1  1,1,1,1
  12 #define chm1 -1,-1,-1,-1
  13
  14 int main (int argc, char *argv[]) {
  15     vector(16, uchar) vuchar  = { ch14, ch14, ch14, ch14};
  16     vector(16, schar) vchar0  = { ch1, ch1, ch1, ch1};
  17     vector(16, schar) vchar1  = { chm1, chm1, chm1, chm1};
  18
  19     vector(16, schar) i1, i2, i3;
  20     vector(16, uchar) u1, u2, u3;
  21
  22     i1 = vchar1<< vchar0;
  23
  24     if (vidx(schar, i1, 0) != ((schar)-1 << (schar)1))
  25         __builtin_abort ();
  26     if (vidx(schar, i1, 1) != ((schar)-1 << (schar)1))
  27         __builtin_abort ();
  28     if (vidx(schar, i1, 2) != ((schar)-1 << (schar)1))
  29         __builtin_abort ();
  30     if (vidx(schar, i1, 3) != ((schar)-1 << (schar)1))
  31         __builtin_abort ();
  32     u1 = vuchar << vchar0;
  33
  34     if (vidx(uchar, u1, 0) != ((uchar)1  << (schar)1))
  35         __builtin_abort ();
  36     if (vidx(uchar, u1, 1) != ((uchar)2  << (schar)1))
  37         __builtin_abort ();
  38     if (vidx(uchar, u1, 2) != ((uchar)3  << (schar)1))
  39         __builtin_abort ();
  40     if (vidx(uchar, u1, 3) != ((uchar)4  << (schar)1))
  41         __builtin_abort ();
  42
  43
  44     i2 = vchar1 >> vuchar;
  45
  46     if (vidx(schar, i2, 0) != ((schar)-1  >> (uchar)1))
  47         __builtin_abort ();
  48     if (vidx(schar, i2, 1) != ((schar)-1  >> (uchar)2))
  49         __builtin_abort ();
  50     if (vidx(schar, i2, 2) != ((schar)-1  >> (uchar)3))
  51         __builtin_abort ();
  52     if (vidx(schar, i2, 3) != ((schar)-1  >> (uchar)4))
  53         __builtin_abort ();
  54
  55     vchar1 >>= vuchar;
  56     vuchar <<= vchar0;
  57     vuchar <<= vchar1;
  58
  59     return 0;
  60 }
  61