gcc/testsuite/gcc.dg/pr111015.c

   1 /* PR tree-optimization/111015 */
   2 /* { dg-do run { target int128 } } */
   3 /* { dg-options "-O2" } */
   4
   5 struct S { unsigned a : 4, b : 4; unsigned __int128 c : 70; } d;
   6
   7 __attribute__((noipa)) void
   8 foo (unsigned __int128 x, unsigned char y, unsigned char z)
   9 {
  10   d.a = y;
  11   d.b = z;
  12   d.c = x;
  13 }
  14
  15 int
  16 main ()
  17 {
  18   foo (-1, 12, 5);
  19   if (d.a != 12
  20       || d.b != 5
  21       || d.c != (-1ULL | (((unsigned __int128) 0x3f) << 64)))
  22     __builtin_abort ();
  23   foo (0x123456789abcdef0ULL | (((unsigned __int128) 26) << 64), 7, 11);
  24   if (d.a != 7
  25       || d.b != 11
  26       || d.c != (0x123456789abcdef0ULL | (((unsigned __int128) 26) << 64)))
  27     __builtin_abort ();
  28 }