https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115137
--- Comment #8 from Sam James <sjames at gcc dot gnu.org> ---
The original is:
```
append_uri_pathel (fname_len_check,
fname_len_check + strlen (fname_len_check), true, &temp_fnres);
[...]
/* Walk the PATHEL string and check how many characters we'll need
to quote. */
quoted = 0;
for (p = b; p < e; p++)
if (FILE_CHAR_TEST (*p, mask))
++quoted;
```
... so there, b and e do overlap and point to the same object. Let me try
reduce again.
