Re: [PATCH] Be less conservative in process_{output,input}_constraints (PR target/65689)

[Segher Boessenkool]

On Wed, Apr 08, 2015 at 11:00:59PM +0200, Jakub Jelinek wrote:
> +    case MATCH_CODE:
> +      if (*XSTR (exp, 1) == '\0')
> +     {
> +       const char *code, *codes = XSTR (exp, 0);
> +       int ret = 0;
> +       while ((code = scan_comma_elt (&codes)) != 0)
> +         if (strncmp (code, "reg", 3) == 0
> +             && (code[3] == ',' || code[3] == '\0' || code[3] == ' '))

This doesn't allow other whitespace.  Maybe it's cleaner written as e.g.

        && codes - code == 3

?


Segher