gcc/testsuite/gcc.dg/pr101294.c

   1 /* PR middle-end/101294 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O0" } */
   4 /* { dg-additional-options "-mavx" { target avx } } */
   5
   6 typedef __attribute__((__vector_size__ (sizeof (unsigned long long)))) unsigned long long U;
   7 typedef __attribute__((__vector_size__ (4 * sizeof (unsigned long long)))) unsigned long long V;
   8
   9 extern U x;
  10
  11 void
  12 foo (void)
  13 {
  14   x = __builtin_shufflevector ((U){}, (V){}, 3);
  15 }