gcc/testsuite/gcc.dg/Wstrict-aliasing-bogus-vla-1.c

   1 /* PR 41673: bogus -Wstrict-aliasing warning from VLA dereference.  */
   2 /* { dg-do compile } */
   3 /* { dg-options "-std=gnu99 -O2 -Wall" } */
   4 /* { dg-require-effective-target alloca } */
   5
   6 int main(int argc, char *argv[])
   7 {
   8     float x[argc];
   9     float y[argc];
  10     return 0 == __builtin_memcpy(y, x, argc * sizeof(*x));
  11 }