From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <dcdd3b734c68c3d5013c7af8e011530b@proxima.alt.za>
To: 9fans@9fans.net
Date: Sat, 31 Aug 2013 20:12:38 +0200
From: lucio@proxima.alt.za
In-Reply-To: <399e128253888fad1131901a3e8b6672@kw.quanstro.net>
MIME-Version: 1.0
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: 7bit
Subject: Re: [9fans] Building Go/386
Topicbox-Message-UUID: 785ad738-ead8-11e9-9d60-3106f5b1d025

> since even ghostscript doesn't get into this state, i'd be interested
> in the line of code (and types of the variables) that hits this fatal
> condition.

Here it is, "before" and "after" I applied some trivial "simplification":

/*
		for(i=0, j=(stkptrsize-stkzerosize)/widthptr*2; i<stkzerosize; i+=widthptr, j+=2)
			if(bvget(bv, j) || bvget(bv, j+1))
				p = appendp(p, AMOVL, D_CONST, 0, D_SP+D_INDIR, frame-stkzerosize+i);
*/
		i = 0;
		j = (stkptrsize-stkzerosize)/widthptr*2;
		while (i < stkzerosize) {
			int f = frame - stkzerosize + i;
			if(bvget(bv, j) || bvget(bv, j+1)) {
				p = appendp(p, AMOVL, D_CONST, 0, D_SP+D_INDIR, f);
			}
			i += widthptr;
			j += 2;
		}

around line 40 in $GOROOT/src/cmd/8g/ggen.c.

Thank you, Erik, for your invaluable input, it seems to work now.

++L