[PATCH 2/3] Fold __builtin_memchr (version 2)

[Wilco Dijkstra]

Hi,

> -static int
> +int
> target_char_cast (tree cst, char *p)

> +      if (target_char_cast (arg2, &c))
> +	return false;

I believe target_char_cast is incorrect if the host/target chars are not identical
(depending on how constant strings are created there may be signed/unsigned
mismatches too). I recently added target_char_cst_p to gimple-fold.c to avoid
char representation mismatches, so it would be better to use that instead.

Wilco