From mboxrd@z Thu Jan  1 00:00:00 1970
From: erik quanstrom <quanstro@quanstro.net>
Date: Tue,  1 Dec 2009 02:55:26 -0500
To: 9fans@9fans.net
Message-ID: <2d42b6b28807634253ba28dc55a96de6@brasstown.quanstro.net>
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Subject: [9fans] compiler double bug.
Topicbox-Message-UUID: a5fe61bc-ead5-11e9-9d60-3106f5b1d025

after 5 hrs of tracking a floating point exception in
awk (present in all versions i could find), i isolated
this sequence of events, which does not require ape:

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

void
main(void)
{
	double g = 4215866817.;

	print("%d\n", (int)g);
	print("%d\n", (int)g);
	exits("");
}

; 8c -FVTw x.c && 8l x.8 && 8.out
-2147483648
8.out 26264: suicide: sys: fp: invalid operation fppc=0x105d status=0xc0a1 pc=0x107a

- erik