[bobmcnamara]

That's the only one I've ever seen, and it's really just checking for the absence of '%'.

What if it could convert:

printf("parsed: %s to %i\n", x, y);

To:

puts("parsed: "); puts(x); puts(" to "); _puti(y); putc('\n');

Well. Then we'd have a lot more function calls overhead. Maybe something like:

_printf_nofloat("parsed: %s to %i\n", x, y);

[Someone]

It’s not the only one it uses.

It also removes calls to printf("") and changes single character printf calls to putchar calls

See https://github.com/gcc-mirror/gcc/blob/ef32bd8c866a1b8a97f62...