On Sat, May 13, 2017 at 11:45:32PM +0000, Ævar Arnfjörð Bjarmason wrote:
> [snip]
>
> +#ifdef PCRE_CONFIG_JIT
> +     if (p->pcre1_jit_on)
> +             ret = pcre_jit_exec(p->pcre1_regexp, p->pcre1_extra_info, line,
> +                                 eol - line, 0, flags, ovector,
> +                                 ARRAY_SIZE(ovector), p->pcre1_jit_stack);
> +     else
> +             ret = pcre_exec(p->pcre1_regexp, p->pcre1_extra_info, line,
> +                             eol - line, 0, flags, ovector,
> +                             ARRAY_SIZE(ovector));
> +#else
>       ret = pcre_exec(p->pcre1_regexp, p->pcre1_extra_info, line, eol - line,
>                       0, flags, ovector, ARRAY_SIZE(ovector));
> +#endif

Wouldn't it be simpler to remove the duplication and
unconditionally use the old pcre_exec() call? Something like
this:

    +#ifdef PCRE_CONFIG_JIT
    +   if (p->pcre1_jit_on)
    +           ret = pcre_jit_exec(p->pcre1_regexp, p->pcre1_extra_info, line,
    +                               eol - line, 0, flags, ovector,
    +                               ARRAY_SIZE(ovector), p->pcre1_jit_stack);
    +   else
    +#endif
        ret = pcre_exec(p->pcre1_regexp, p->pcre1_extra_info, line, eol - line,
                        0, flags, ovector, ARRAY_SIZE(ovector));

>       if (ret < 0 && ret != PCRE_ERROR_NOMATCH)
>               die("pcre_exec failed with error code %d", ret);
>       if (ret > 0) {
> @@ -394,7 +420,16 @@ static int pcre1match(struct grep_pat *p, const char 
> *line, const char *eol,
>  static void free_pcre1_regexp(struct grep_pat *p)
>  {
>       pcre_free(p->pcre1_regexp);
> +#ifdef PCRE_CONFIG_JIT
> +     if (p->pcre1_jit_on) {
> +             pcre_free_study(p->pcre1_extra_info);
> +             pcre_jit_stack_free(p->pcre1_jit_stack);
> +     } else {
> +             pcre_free(p->pcre1_extra_info);
> +     }
> +#else
>       pcre_free(p->pcre1_extra_info);
> +#endif

Same here. The pcre_free() is the same with and without the
ifdef.

Regards
Simon
-- 
+ privacy is necessary
+ using gnupg http://gnupg.org
+ public key id: 0x92FEFDB7E44C32F9

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