[Bug middle-end/117498] [13/14/15 regression] Miscompile with -O3 since r13-1268-g8c99e307b20c502

[jakub at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117498

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
With
-  char n = 0;
-  bar (h, 4, &n, &g);
+  char n[16] = {};
+  bar (h, 4, &n[0], &g);
this isn't miscompiled.  Maybe we just align it to 16-byte boundary
automatically?