From: ori@eigenstate.org
To: 9front@9front.org
Subject: Re: [9front] [PATCH] cc: take our pickle out of the peephole
Date: Sun, 02 Oct 2022 14:08:49 -0400 [thread overview]
Message-ID: <4EBB293605FE50837A85CFB227F07E7A@eigenstate.org> (raw)
In-Reply-To: <YzjK7Dv+bqcJVS1h@alice>
Quoth Anthony Martin <ality@pbrane.org>:
>
> The -P flag is used to debug the peephole optimizer. The -Z flag is
> used to output pickling code for various types. Don't confuse the two.
>
> The pickling code was added in the third edition. It mistakenly reused
> the -P flag which was later partially corrected to use the -Z flag in
> 2004. That change updated lex.c but missed the code in pickle.c.
>
> ---
> diff 7bf177b3e058925265863979ee50e8dc1822d17a b44281c5cf3db0ca60a22df94bbe99e8bcf9c9e3
> --- a/sys/src/cmd/cc/pickle.c Tue Aug 23 04:38:49 2022
> +++ b/sys/src/cmd/cc/pickle.c Sat Oct 1 15:48:00 2022
> @@ -172,9 +172,9 @@
> int n;
> char *an;
>
> - if(!debug['P'])
> + if(!debug['Z'])
> return;
> - if(debug['P'] > 1) {
> + if(debug['Z'] > 1) {
> n = 0;
> for(i=iostack; i; i=i->link)
> n++;
> @@ -221,9 +221,9 @@
> Type *t;
> Sym *s1, *s2;
>
> - if(!debug['P'] || debug['s'])
> + if(!debug['Z'] || debug['s'])
> return;
> - if(debug['P'] > 1) {
> + if(debug['Z'] > 1) {
> n = 0;
> for(i=iostack; i; i=i->link)
> n++;
looks good, done.
prev parent reply other threads:[~2022-10-02 18:10 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-01 23:19 Anthony Martin
2022-10-01 23:24 ` unobe
2022-10-13 0:34 ` Anthony Martin
2022-10-13 3:08 ` Noam Preil
2022-10-13 8:02 ` Steve Simon
2022-10-13 8:56 ` hiro
2022-10-02 18:08 ` ori [this message]
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