gcc/testsuite/gcc.dg/pr89350.c

   1 /* PR tree-optimization/89350 - Wrong -Wstringop-overflow warning
   2    on a variable offset from the end of an array
   3    { dg-do compile }
   4    { dg-options "-O2 -Wall" } */
   5
   6 char buf[128];
   7 char *src = "HCSparta";
   8
   9 int main(int argc, char **argv)
  10 {
  11     char *dst = buf + sizeof(buf);
  12
  13     if (argc)
  14     {
  15       dst -= argc;
  16       __builtin_memcpy(dst, src, argc + 0);   /* { dg-bogus "\\\[-Warray-bounds|-Wstringop-overflow" } */
  17     }
  18 }