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Date:      Thu, 20 Jan 2005 16:44:59 -0500 (EST)
From:      "Mike Jakubik" <mikej@rogers.com>
To:        "Paul Mather" <paul@gromit.dlib.vt.edu>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: CFLAGS=-O2 -pipe problems in RELENG_5 ?
Message-ID:  <52406.207.219.213.162.1106257499.squirrel@207.219.213.162>
In-Reply-To: <1106256780.582.5.camel@zappa.Chelsea-Ct.Org>
References:  <3aaaa3a0501181530975fecf@mail.gmail.com>  <XFMail.20050120085633.jdp@polstra.com>  <3aaaa3a050120105459f7d015@mail.gmail.com>  <3aaaa3a050120111777ada357@mail.gmail.com> <1106256780.582.5.camel@zappa.Chelsea-Ct.Org>

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Paul Mather said:

> On Thu, 2005-01-20 at 19:17 +0000, Chris wrote:
>> what does -fno-strict-alias do? I cannot find it in man gcc
>
> It is a truncation of "-fno-strict-aliasing".  The flag does not appear
> to be described in the gcc man page, but is documented in the gcc info
> page (search for "-fstrict-aliasing").  To quote the info page,
> -fstrict-aliasing "allows the compiler to assume the strictest aliasing
> rules applicable to the language being compiled. ..."

Wouldn't we want strict aliasing then?




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