https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112965
--- Comment #4 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
(In reply to David Malcolm from comment #3)
> A workaround might be to pad pp's buffer with trailing zero bytes up to a
> multiple of 16.
The following hack "fixes" it (for some definition of "fix"):
diff --git a/gcc/c/c-parser.cc b/gcc/c/c-parser.cc
index 5700ccccc493..4858fec0dc3e 100644
--- a/gcc/c/c-parser.cc
+++ b/gcc/c/c-parser.cc
@@ -1843,6 +1843,11 @@ private:
pretty_printer pp;
pp_string (&pp, (const char *) tok.val.str.text);
pp_newline (&pp);
+
+ // FIXME: workaround for PR 112965
+ for (int i = 0; i < 16; i++)
+ pp_character (&pp, '\0');
+
cpp_push_buffer (parse_in,
(const unsigned char *) pp_formatted_text (&pp),
strlen (pp_formatted_text (&pp)),
