From owner-freebsd-toolchain@FreeBSD.ORG  Mon Sep 22 05:46:55 2014
Return-Path: <owner-freebsd-toolchain@FreeBSD.ORG>
Delivered-To: freebsd-toolchain@FreeBSD.org
Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 7A327C56
 for <freebsd-toolchain@FreeBSD.org>; Mon, 22 Sep 2014 05:46:55 +0000 (UTC)
Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140])
 by mx1.freebsd.org (Postfix) with ESMTP id C4EB9D52
 for <freebsd-toolchain@FreeBSD.org>; Mon, 22 Sep 2014 05:46:54 +0000 (UTC)
Received: from porto.starpoint.kiev.ua (porto-e.starpoint.kiev.ua
 [212.40.38.100])
 by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id IAA18820;
 Mon, 22 Sep 2014 08:46:44 +0300 (EEST)
 (envelope-from avg@FreeBSD.org)
Received: from localhost ([127.0.0.1])
 by porto.starpoint.kiev.ua with esmtp (Exim 4.34 (FreeBSD))
 id 1XVwSS-0005hA-5c; Mon, 22 Sep 2014 08:46:44 +0300
Message-ID: <541FB79F.1070002@FreeBSD.org>
Date: Mon, 22 Sep 2014 08:46:07 +0300
From: Andriy Gapon <avg@FreeBSD.org>
User-Agent: Mozilla/5.0 (X11; FreeBSD amd64;
 rv:31.0) Gecko/20100101 Thunderbird/31.1.0
MIME-Version: 1.0
To: Rui Paulo <rpaulo@me.com>, Steve Kargl <sgk@troutmask.apl.washington.edu>
Subject: Re: Is this a compiler bug?
References: <20140922011946.GA4317@troutmask.apl.washington.edu>
 <670269FD-F75F-4044-8F3C-0260F58A70E2@me.com>
 <20140922014853.GA4469@troutmask.apl.washington.edu>
 <2EB3354D-0F65-4A79-A378-7F397911284A@me.com>
In-Reply-To: <2EB3354D-0F65-4A79-A378-7F397911284A@me.com>
Content-Type: text/plain; charset=windows-1252
Content-Transfer-Encoding: 7bit
Cc: freebsd-toolchain@FreeBSD.org
X-BeenThere: freebsd-toolchain@freebsd.org
X-Mailman-Version: 2.1.18-1
Precedence: list
List-Id: Maintenance of FreeBSD's integrated toolchain
 <freebsd-toolchain.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-toolchain>, 
 <mailto:freebsd-toolchain-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-toolchain/>
List-Post: <mailto:freebsd-toolchain@freebsd.org>
List-Help: <mailto:freebsd-toolchain-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-toolchain>, 
 <mailto:freebsd-toolchain-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 22 Sep 2014 05:46:55 -0000

On 22/09/2014 05:20, Rui Paulo wrote:
> On Sep 21, 2014, at 18:48, Steve Kargl <sgk@troutmask.apl.washington.edu> wrote:
>> On Sun, Sep 21, 2014 at 06:38:48PM -0700, Rui Paulo wrote:
>>> On Sep 21, 2014, at 18:19, Steve Kargl <sgk@troutmask.apl.washington.edu> wrote:
>>>>
>>>> #include <stdio.h>
>>>> #include <stdint.h>
>>>>
>>>> int
>>>> main(void)
>>>> {
>>>> 	uint16_t i;
>>>> 	i = 0x3ff0+63; printf("%x\n", i);
>>>> 	i = 0x3ff1+63; printf("%x\n", i);
>>>> 	i = 0x3ff2+63; printf("%x\n", i);
>>>> 	i = 0x3ff3+63; printf("%x\n", i);
>>>> 	i = 0x3ff4+63; printf("%x\n", i);
>>>> 	i = 0x3ff4+63; printf("%x\n", i);
>>>> 	i = 0x3ff6+63; printf("%x\n", i);
>>>> 	i = 0x3ff7+63; printf("%x\n", i);
>>>> 	i = 0x3ff8+63; printf("%x\n", i);
>>>> 	i = 0x3ff9+63; printf("%x\n", i);
>>>> 	i = 0x3ffa+63; printf("%x\n", i);
>>>> 	i = 0x3ffb+63; printf("%x\n", i);
>>>> 	i = 0x3ffc+63; printf("%x\n", i);
>>>> 	i = 0x3ffd+63; printf("%x\n", i);
>>>> 	i = 0x3ffe+63; printf("%x\n", i);
>>>> 	i = 0x3fff+63; printf("%x\n", i);
>>>> 	return 0;
>>>> }
>>>
>>> Looks like it.  Please file a bug report with LLVM.
>>>
>>
>> Unfortunately, llvm requires an account to report bugs.
> 
> I think I know what's happening:  "e" is being parsed as scientific notation.

Interesting!  One of the cases where the whitespace matters?

-- 
Andriy Gapon