gcc/testsuite/gcc.dg/pr107554.c

   1 /* { dg-do compile { target lp64 } } */
   2 /* { dg-options "-O -foptimize-strlen" } */
   3
   4 #define ELEMS 0x40000000
   5
   6 int a[ELEMS];
   7 int b[ELEMS];
   8
   9 int main()
  10 {
  11   __builtin_memcpy(a, b, ELEMS*sizeof(int));
  12 }