From mboxrd@z Thu Jan  1 00:00:00 1970
From: erik quanstrom <quanstro@quanstro.net>
Date: Sat, 16 Feb 2013 21:38:09 -0500
To: 9fans@9fans.net
Message-ID: <33b72a69832f3b5442b659b76e41a8a7@brasstown.quanstro.net>
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Subject: [9fans] c compiler bug
Topicbox-Message-UUID: 18c10d92-ead8-11e9-9d60-3106f5b1d025

i don't think this should link, since wrongaddr calls
fn with an Outer* not an Inner*.

#include <u.h>
#include <libc.h>

typedef	struct	Inner	Inner;
typedef	struct	Outer	Outer;

struct Inner {
	int	x;
};

struct Outer {
	char	buf[0x1000];
	Inner;
};

void
wrongaddr(Outer *o)
{
	static void fn(Outer*);

	fn(o);
}

void
main(void)
{
	Outer *o;

	o = malloc(sizeof *o);
	memset(o, 0, sizeof *o);
	print("addr o	%#p\n", o);
	print("addr o.x	%#p\n", &o->x);
	wrongaddr(o);
}

static void
fn(Inner *i)
{
	print("fn addr i.x	%#p\n", &i->x);
}
; 6.cbug
addr o	0x4018f0
addr o.x	0x4028f0
fn addr i.x	0x4018f0